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Model meaning

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Product introduction


QHYB-CDL variable frequency constant pressure water supply equipment (with CDLF stainless steel multi-stage centrifugal pump) is a new type of towerless water supply equipment. The water supply capacity is determined by the pump unit, and the coordinated operation of the system is controlled by the control system. The main role of the booster and pressure stabilization equipment is to store energy and maintain pressure, to cope with a small amount of water supply and normal pipeline leakage. When a large amount of water is used, the pressure of the pipe network drops and the water pump automatically starts water supply.

QHYB-CDL variable frequency constant pressure water supply equipment (with CDLF stainless steel multi-stage centrifugal pump) can be divided into pneumatic water supply equipment and variable frequency water supply equipment according to different working modes, each with its own characteristics. It is widely used in many fields such as life, fire protection, production, spraying and so on.

Water pump is the foundation of water supply equipment, and it is the fundamental guarantee for water supply equipment to show its water supply capacity. The pumps for water supply equipment are universal and can be various types of pumps with appropriate flow rate and lift mode. The product can be operated in parallel with 1 ~ 4 or more water pumps according to the flow and lift requirements. The water pump unit and another set of booster voltage regulator power supply equipment (water flow pump unit) can be switched with the main pump in a small flow range To provide efficiency and further reduce energy.

According to the different working methods of the equipment, it can be divided into life style, fire protection type, sprinkler type and life fire protection shared type.


Selection basis


The basic basis for selecting a set of automatic water supply equipment is the designed water supply flow and water supply pressure (water head), and in addition, the type of flow change of the application must be considered.

Continuous type: There is rarely a day when the flow is zero, or the normal leakage of the pipe network itself maintains a certain flow, for example, the pressurization system of large hotels, restaurant and mining enterprises.

Intermittent type: long period of water trough and small or zero flow, for example: small office buildings, office buildings, commercial and residential buildings, various types of residences, and production water, etc.

At the same time, we should also consider the changes in the flow of water in a certain period of time, as well as the changes in different seasons, the different areas of water use and other factors.

Fire sprinkler water supply equipment should generally choose air pressure water supply equipment.Because it is in the system pressure maintaining state for a long time, there is no change in flow rate. The air pressure water supply equipment can cope with general leaks in the pipe, and an auxiliary pump with a small flow is added. There is no need to start the main pump, saving energy.

Advantages of variable frequency water supply equipment: it can feed water at constant pressure and the constant pressure value can be adjusted within a certain range. The accuracy of constant pressure is generally less than 0.02 MPa. Frequency conversion speed regulation is an efficient and energy-saving method. 20%. In addition, the inrush current of the variable frequency startup is small and the pump shock is small, and the noise is low at low speed operation.

Advantages of pneumatic water supply equipment: relatively low cost, simple control system technology, convenient service and easy maintenance.




CH YB-CDL Variable Frequency Constant Pressure Water Supply Equipment Selection Guide

First, the selection of variable frequency constant pressure water supply equipment pump


1.Selection of water supply height of variable frequency constant pressure water supply equipment

Head of equipment m

20

26

32

40

50

60

70

80

100

120

Water supply height m

10

14

18

25

32

38

46

55

72

88








2.Selection of the number of water supply households of variable frequency constant pressure water supply equipment

Equipment flow m3 / h

6

12

18

25

36

50

Water supply households

20 ~ 30

40 ~ 60

60 ~ 100

100 ~ 150

150 ~ 200

200 ~ 300







Equipment flow m3 / h

75

100

150

200

250

Water supply households

400 ~ 500

600 ~ 1000

1000 ~ 1500

1500 ~ 2000

2000 ~ 3000



CH YB-CDL frequency conversion constant pressure water supply equipment option table








Applicable building

Water jet flow
(L / S)

Sprinkler effect
pressure
(MPa)

Applicable building height
(m)

Recommended option water supply model
Vertical pump set

building

Design water spray intensity
(L / m · m2)

Effective area
(m2)

Productive building

10

300

60

0.1

≤12

QHYB60-0.24-125CDL-3

Productive building

10

300

60

0.1

≤24

QHYB60-0.4-125CDL-3

Productive building

10

300

60

0.1

≤36

QHYB60-0.6-125CDL-3

Productive building

10

300

60

0.1

≤50

QHYB60-0.8-125CDL-3

Productive building

10

300

60

0.1

≤72

QHYB60-1.0-125CDL-3

Productive building

10

300

60

0.1

≤100

QHYB60-1.2-125CDL-3

Storage building

15

300

90

0.1

≤12

QHYB90-0.24-150CDL-3

Storage building

15

300

90

0.1

≤24

QHYB90-0.4-150CDL-3

Storage building

15

300

90

0.1

≤36

QHYB90-0.6-150CDL-3

Storage building

15

300

90

0.1

≤50

QHYB90-0.8-150CDL-3

Storage building

15

300

90

0.1

≤72

QHYB90-1.0-150CDL-3

Storage building

15

300

90

0.1

≤100

QHYB90-1.2-150CDL-3

Medium danger

6

300

40

0.1

≤12

QHYB40-0.24-100CDL-3

Medium danger

6

300

40

0.1

≤24

QHYB40-0.4-100CDL-3

Medium danger

6

300

40

0.1

≤36

QHYB40-0.6-100CDL-3

Medium danger

6

300

40

0.1

≤50

QHYB40-0.8-100CDL-3

Medium danger

6

300

40

0.1

≤72

QHYB40-1.0-100CDL-3

Medium danger

6

300

40

0.1

≤100

QHYB40-1.2-100CDL-3

Light danger

3

300

15

0.1

≤12

QHYB15-0.24-65CDL-3

Light danger

3

300

15

0.1

≤24

QHYB15-0.4-65CDL-3

Light danger

3

300

15

0.1

≤36

QHYB15-0.6-65CDL-3

Light danger

3

300

15

0.1

≤50

QHYB15-0.8-65CDL-3

Light danger

3

300

15

0.1

≤72

QHYB15-1.0-65CDL-3

Light danger

3

300

15

0.1

≤100

QHYB15-1.2-65CDL-3

Users can choose the appropriate model according to the provided parameters!

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