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Fire stabilizing unit

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  • product manual
  • Performance parameter

Product introduction


I. Booster voltage stabilization equipment A new type of fire booster voltage stabilization equipment developed and designed in accordance with the Document No. [1996] 108 of the Ministry of Construction of the People's Republic of China in August 1996, which also meets the requirements of 98S205 (formerly 98S176).

Second, this booster pressure stabilization equipment is designed to solve the high-pressure fire water tank of the temporary high-pressure fire-fighting water supply system, and its installation height cannot meet the requirements of the system at the most unfavorable point when the static water pressure should be provided with a booster facility. Boost pressure stabilizing equipment (hereinafter referred to as "equipment").

3. This equipment is suitable for various fire-fighting water supply and domestic water supply systems such as hydrant water supply systems and wet automatic sprinkler systems that require pressurized facilities in multi-story and high-rise construction projects.

4. "Equipment" consists of diaphragm-type air pressure tanks, water pumps, electric control boxes, meters, and pipeline accessories.

V. This equipment is designed in accordance with the relevant technical parameters specified in "Code for Fire Protection Design of Civil Buildings" (referred to as "High Regulation") GB50045-95 and "Code for Design of Air Pressure Water Supply" and CECS76: 95.


Technical conditions


1. Working pressure of WXQ regulator tank: 0.6MPa, 1.0MPa, 1.6MPa.

2. The fire storage water volume of WXQ pressure tank is greater than: 150L, 300L, 450L.

3. WXQ diaphragm tank has a constant water volume greater than 50L.

4. The buffer water volume pressure difference of WXQ diaphragm pressure tank is 0.02 ~ 0.03MPa, and the constant pressure water volume pressure difference is 0.05 ~ 0.06MPa.

5. Working pressure ratio: ab value is 0.6 ~ 40 ℃.


Applicable conditions


1. Fire hydrant system: The flow rate of water gun per share is 2.5L / S, 5L / S, and the length of the filling water column is 7m, 10m, 13m.

2. Automatic water spray system: the flow rate of each nozzle is 1.0L / S, and the pressure of the nozzle is 0.1MPa.

3. The ambient temperature of the equipment should be 5 ℃ ~ 40 ℃.


working principle


1.Make the fire fighting water supply pipe system the most unfavorable point and always maintain the pressure required for fire fighting;

2. Make the WXQ diaphragm air pressure tank always store 30 seconds of fire fighting water. Use the operating pressure of P1, P2, Ps1, Ps2 set by the air pressure water tank to control the operating conditions of the pump to achieve the functions of boosting and stabilizing.

Yes, P1 is the pressure (MPa) required for fire fighting at the most disadvantageous point, P2 is the starting pressure of the fire pump (MPa), Ps1 is the starting pressure of the fire stabilizing pump (MPa), and Ps2 is the stopping pressure of the GDL stabilizing pump MPa


The whole process of operation control


Calculate the fire pressure P1 required for the most unfavourable point in the hydrant system or sprinkler system according to the calculation. As the inflation pressure of the air pressure water tank, calculate the reported pressure water tank size and ab value determined by the option, and obtain P2, and set up

Ps1 = P2 + (0.02 ~ 0.03)

Ps2 = Ps1 + (0.05 + 0.06)

Usually, if there is leakage in the pipeline system until the maximum pressure is reached, the XBD-L fire-fighting voltage stabilization pump is controlled to constantly replenish the water and stabilize the voltage, and it runs repeatedly at Ps1, Ps2 (start, stop). Once there is a fire, a large amount of water shortage in the pipeline system causes the pressure of Ps1 to drop (Ps1 → Ps2). When it drops to P2, an alarm signal is issued and the fire pump is started immediately (manual or automatic startup is determined by the designer). XBD-L vertical After the single-stage fire pump is started, the XBD-ISG fire stabilizing pump automatically stops until the XBD-LG vertical multi-stage fire pump stops running and manually restores the "equipment" control function.


classification


Set location points according to "equipment": top-mounted (represented by I) and bottom-mounted (represented by II);

According to the pressure tank setting method: vertical (represented by L) and horizontal (represented by W);

According to the fire water supply system provided by the equipment: hydrant water supply system (indicated by X)

Sprinkler system (indicated by Z)

Fire hydrant and automatic sprinkler water supply system (indicated by XZ).


Calculation of P1


P1 refers to the fire pressure required by the hydrant or automatic sprinkler at the most unfavourable point of the fire water supply system. It is the lowest working pressure for the operation of this "equipment" and is the basic data that should be mastered when selecting this equipment.

1. When the "equipment" is set on the ground floor to draw water from the pool, the calculation formula of the hydrant system:

P1 = H1 + H2 + H3 + H4 (mH2O);

H1—the geometric height of the hydrant from the lowest water level to the most unfavorable point of the pool (mH2O);

H2—Sum of the pipeline system and local pressure loss (mH2O);

H3—pressure loss of water hose and hydrant itself (mH2O);

H4—the pressure required for the water jet to fill the length of the water column (mH2O);

2. When the "equipment" is set between high water tanks, it will never self-fill and absorb water from the tank, and when the most unfavorable point is below the "equipment", the calculation formula of the hydrant system

P1 = H3 + H4 (mH2O)

3. The "equipment" is set on the ground floor when absorbing water from the pool, the formula for the automatic sprinkler system:

P1 = ∑H + Ho + Hr + Z (mH2O)>

∑H—the sum of the along-line and local pressure loss of the sprinkler to the most unfavorable point (mH2O);

HO—working pressure of the most disadvantageous nozzle (mH2O)>

Hr—local head loss of alarm valve (mH2O)>

Z—geometric height (mH2O) between the most unfavorable point sprinkler and the lowest water level of the pool (or water supply main pipe)>

4. The "equipment" is set up between the high-level water tanks to absorb water from the water tank, and the spray nozzle at the most unfavorable point is lower than the equipment, the automatic water spray system calculation formula:

P1 = ∑H + Ho + Hr + Z (mH2O)> 5. When the air pressure water tank and the water pump are set in other places, P1 should be calculated separately.


A few notes


1. Pressurization standard for this "equipment": P1 is the minimum working pressure of this "equipment", and its value should meet the fire protection pressure required for the most unfavourable points of the fire water supply system. Such as the hydrant water supply system, must meet the most disadvantageous point hydrant spray gun body to fill the length of the water column, can not only meet the static pressure of 0.07MPa or 0.15MPa as the pressure increase standard.

2.When calculating P1, the flow rate of the pipeline system along the course and local losses should be the fire water supply in the initial stage of the fire.For example, the fire hydrant system is two fire hydrant flows 2 × 5 (L / S) = 10 (L / S) Or 2 × 2.5 (L / S) = 5 (L / S); the sprinkler system is 5 sprinkler heads, and generally 5 × 1 (L / S) = 5 (L / S).

3. The main components of this "equipment": It is reported that the pressurized water tank should have the storage water volume, constant pressure water volume and buffer water volume required by the fire water supply system, and its diameter and specifications can be obtained according to the determined ab value. The water storage volume of the air pressure water tank for the hydrant water supply system is not less than 300L; the water storage volume of the air pressure tank for the automatic sprinkler system is not less than 150L; the water storage volume of the air pressure tank for the hydrant and automatic sprinkler system is not less than 450L.

4. This "equipment" is equipped with two ISGD voltage stabilization pumps (one for one preparation). The flow rate of the multi-stage pressure-stabilizing pump should be within 3 minutes to make up the flow required for the actual pressure-stabilizing water volume in the WXQ diaphragm pressure tank. When the head of the stabilized pump is (PS1 + PS2) / 2, the value of the high-efficiency zone of the pump curve is taken. The function of this "equipment" is to solve the initial fire, that is, before the main fire pump is started, to ensure that the 30S water storage capacity with sufficient fire fighting pressure is carried out in the initial fire until the fire pump is fully loaded.

5. The fire hydrant water supply system and sprinkler system can share a set of pressurized voltage stabilization equipment. When there is a fire, the pressure in the air pressure water tank drops to P2, and the fire hydrant pump or automatic sprinkler pump is activated after the confirmation to the fire control center or fire hydrant pump room according to other signals issued by the hydrant system or automatic sprinkler system.

6. The hydrant water supply system adopts the "equipment" upper type rather than the lower type. The upper type is equipped with a low pump lift mode, P1 is the sum of the resistance loss of the water hose, the water gun and the pressure required to fill the water column to fill the water column. The pressure of the pneumatic water tank is small, and the pressure is low, which saves steel and operating costs.


Electrical control performance


1. The "equipment" electronic control system has automatic and manual functions, and is networked with the fire control center or fire pump room.

2. Two voltage-stabilized water pumps, one for each use and one for backup, are automatically switched in turn and run alternately.

3.Usually keep the fire pipe network under high pressure and keep a certain amount of water in the tank. Due to leaks and other reasons, the number 1 pump will automatically start when the system pressure drops to Ps1, and the pump will stop when the water pressure rises to Ps2, the next time the pressure drops When the secondary pressure drops to Ps1, the No. 2 pump starts automatically, so that it operates alternately, so that the system pressure is always maintained between Ps1 and Ps2.

4.When a fire occurs, when the system water pressure drops from Ps1 to Ps2, the main fire pump signal and audible and visual alarm are output.When the main fire pump is started, the signal is cut off and the control power of the voltage stabilization pump is turned off. control function.

5.Electric control system has a special maintenance status, that is, if the pump No. 1 fails during operation, it can be easily transferred to the No. 2 pump. If the No. 2 pump fails, it can also be turned to No. 1 pump to make a water pump work. The "equipment" can still operate normally during maintenance.

6. For the specifications and dimensions of the electric control box, the principle of electrical control and the composition of the main components, please refer to the company's telegram automatic control instruction manual.


other instructions


1. Diaphragm pressure tanks are manufactured according to the national standard 91SS852 standard atlas.

2. The piping uses seamless steel pipes, hot-dip galvanized steel pipes, and hot-dip galvanized seamless steel pipes.

3. "Equipment" is supported by an integrated combination of integrated steel bearings. In this picture, the form of the diaphragm pressure tank support is drawn according to the skirt, and the support type support can also be used.

4. Vibration isolation measures shall be provided when the "equipment" is mounted on the top. The pump unit must take measures to prevent the pump unit from tipping during the installation of the rubber vibration isolation pad. After the water pump unit vibration isolation pad is installed, when installing the water inlet and outlet pipes, accessories and accessories of the pump unit, it must take measures to prevent the pump unit from tilting. To ensure safe construction.

5. The air pressure tank is equipped with a drainage device, and safety valves, remote pressure gauges and other accessories are installed on the pipeline system.

6. Drainage facilities should be provided around the "equipment" to facilitate water leakage during maintenance or to help prevent leakage.

7. There should be a sufficient distance between the "equipment" and the wall or other equipment, generally not less than 700mm.

8. "Equipment" shall be subject to overall hydraulic pressure test, hydraulic strength test and tightness test, which shall be implemented in accordance with the relevant current regulations.

9. The external surfaces of the "equipment" connecting pipes, accessories, and air pressure water tanks should be painted with anti-rust paint, and the inner surface of the air pressure water tanks should be painted with non-toxic anticorrosive paint.

10. The technical requirements for the installation of water pumps, motors and pipelines are implemented in accordance with relevant technical regulations.


Serial number

Model of boost pressure regulator

Fire pressure Mpa
P1

Vertical diaphragm pressure tank

Water pump

Equipment operating weight Kg

Operating pressure Mpa

Regulated water volume L

Model specifications

Working pressure ratio

Fire storage water volume (L)

model

Calibration volume

Actual volume

1

ZW (L) -IX-7

0.1

SQL800 * 0.6

0.60

300

319

25LG3-10 * 4 1.5KW

1452

P1 = 0.10 Ps1 = 0.26
P2 = 0.23 Ps2 = 0.31

54

2

ZW (L) -IZ-10

0.16

SQL800 * 0.6

0.80

150

159

25LG3-10 * 4 1.5KW

1428

P1 = 0.16 Ps1 = 0.26
P2 = 0.23 Ps2 = 0.31

70

3

ZW (L) -IX-10

0.16

SQL800 * 0.6

0.60

300

319

25LG3-10 * 5 1.5KW

1474

P1 = 0.16 Ps1 = 0.36
P2 = 0.33 Ps2 = 0.42

52

4

ZW (L) -IX-13

0.22

SQL1000 * 0.6

0.76

300

329

25LG3-10 * 4 1.5KW

2312

P1 = 0.22 Ps1 = 0.35
P2 = 0.32 Ps2 = 0.40

97

5

ZW (L) -XZ-10

0.16

SQL1000 * 0.6

0.65

450

480

25LG3-10 * 4 1.5KW

2312

P1 = 0.16 Ps1 = 0.33
P2 = 0.30 Ps2 = 0.38

86

6

ZW (L) -XZ-13

0.22

SQL1000 * 0.6

0.67

450

452

25LG3-10 * 5 1.5KW

2312

P1 = 0.22 Ps1 = 0.41
P2 = 0.38 Ps2 = 0.46

80

7

ZW (L) -II-Z-

A

0.22-0.38

SQL800 * 0.6

0.80

150

159

25LG3-10 * 6 2.2KW

1452

P1 = 0.38 Ps1 = 0.53
P2 = 0.50 Ps2 = 0.60

61

8

ZW (L) -II-Z-

B

0.38-0.50

SQL800 * 1.0

0.80

150

159

25LG3-10 * 8 2.2KW

1513

P1 = 0.50 Ps1 = 0.68
P2 = 0.65 Ps2 = 0.75

51

9

ZW (L) -II-Z-

C

0.50-0.65

SQL1000 * 1.6

0.85

150

206

25LG3-10 * 9 2.2KW

1653

P1 = 0.65 Ps1 = 0.81
P2 = 0.78 Ps2 = 0.86

59

10

ZW (L) -II-Z-

D

0.65-0.85

SQL1000 * 1.6

0.85

150

206

25LG3-10 * 11 3KW

1701

P1 = 0.85 Ps1 = 1.04
P2 = 1.02 Ps2 = 1.10

57

11

ZW (L) -II-Z-

E

0.85-1.00

SQL1000 * 1.6

0.85

150

206

25LG3-10 * 13 4KW

1709

P1 = 1.00 Ps1 = 1.21
P2 = 1.19 Ps2 = 1.27

50

Serial number

Model of boost pressure regulator

Fire pressure Mpa
P1

Vertical diaphragm pressure tank

Water pump

Equipment operating weight Kg

Operating pressure Mpa

Regulated water volume L

Model specifications

Working pressure ratio

Fire storage water volume (L)

model

Calibration volume

Actual volume

12

ZW (L) -II-X-

A

0.22-0.38

SQL1000 * 0.6

0.78

300

302

25LG3-10 * 6 2.2KW

2344

P1 = 0.38 Ps1 = 0.55
P2 = 0.52 Ps2 = 0.60

72

13

ZW (L) -II-X-

B

0.38-0.50

SQL1000 * 1.0

0.78

300

302

25LG3-10 * 8 2.2KW

2494

P1 = 0.50 Ps1 = 0.70
P2 = 0.67 Ps2 = 0.75

61

14

ZW (L) -II-X-

C

0.50-0.65

SQL1000 * 1.6

0.78

300

302

25LG3-10 * 10 3KW

2689

P1 = 0.65 Ps1 = 0.88
P2 = 0.86 Ps2 = 0.93

51

15

ZW (L) -II-X-

D

0.65-0.85

SQL1000 * 1.6

0.85

300

355

25LG3-10 * 13 4KW

2703

P1 = 0.85 Ps1 = 1.05
P2 = 1.02 Ps2 = 1.10

82

16

ZW (L) -II-X-

E

0.85-1.00

SQL1000 * 1.6

0.88

300

355

25LG3-10 * 15 4KW

2730

P1 = 1.00 Ps1 = 1.21
P2 = 1.19 Ps2 = 1.26

73

17

ZW (L) -II-XZ-

A

0.22-0.38

SQL1200 * 0.6

0.80

450

474

25LG3-10 * 6 2.2KW

3641

P1 = 0.38 Ps1 = 0.53
P2 = 0.50 Ps2 = 0.58

133

18

ZW (L) -II-XZ-

B

0.38-0.50

SQL1200 * 1.0

0.80

450

474

25LG3-10 * 8 2.2KW

3947

P1 = 0.50 Ps1 = 0.68
P2 = 0.65 Ps2 = 0.73

110

19

ZW (L) -II-XZ-

C

0.50-0.65

SQL1200 * 1.6

0.80

450

474

25LG3-10 * 10 3KW

3961

P1 = 0.65 Ps1 = 0.87
P2 = 0.84 Ps2 = 0.92

90

20

ZW (L) -II-XZ-

D

0.65-0.85

SQL1200 * 1.6

0.80

450

474

25LG3-10 * 12 4KW

4124

P1 = 0.85 Ps1 = 1.12
P2 = 1.09 Ps2 = 1.17

73

twenty one

ZW (L) -II-XZ-

E

0.85-1.00

SQL1200 * 1.6

0.80

450

474

25LG3-10 * 14 4KW

4156

P1 = 1.00 Ps1 = 1.30
P2 = 1.27 Ps2 = 1.35

64


Note: 1. The operating pressure symbol in the table: P1-the inflation pressure of the air pressure water tank (the pressure required for fire fighting) (MPa)
P2 ---- Fire pump starting pressure (MPa)
Ps1 --- Starting pressure of booster and stabilized water pump (MPa)
Ps2 --- Boost pressure of booster and stabilized water pump (MPa)
2. The serial numbers 1-6 in the table are I-type "equipment", and a service network is located between the high-level water tanks (the most disadvantageous point is that the hydrant is lower than the "equipment").
3. The serial number 7-21 in the table is type II. The "equipment" is generally located in the fire pump room and storage tank. The fire pressure range and the water pump are used for reference.
4. The pump model in the table is the model of our factory. Other pumps can be selected according to the flow and lift.









Serial number

name

1

Pressure tank

2

Pressure gauge

3

Check valve



Serial number

name

6

Water pump

5

Soft rubber joint

6

Water pump








Pressure tank model

Φ

H

A

A1

L

L1

Φ800

800

2480

800

760

1400

1200

Φ1000

1000

2800

1000

960

1600

1400

Φ1200

1200

3210

1200

1160

1800

1600


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