CN207499058U - A kind of non-negative pressure frequency-changing water supply device - Google Patents
A kind of non-negative pressure frequency-changing water supply device Download PDFInfo
- Publication number
- CN207499058U CN207499058U CN201721378794.0U CN201721378794U CN207499058U CN 207499058 U CN207499058 U CN 207499058U CN 201721378794 U CN201721378794 U CN 201721378794U CN 207499058 U CN207499058 U CN 207499058U
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- frequency
- pressure
- outfall sewer
- water inlet
- negative pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000006641 stabilisation Effects 0.000 claims abstract description 5
- 238000011105 stabilization Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 230000008676 import Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 description 10
- 230000006872 improvement Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of non-negative pressure frequency-changing water supply devices, the non-negative pressure frequency-changing water supply device includes steady-flow tank, the protection negative pressure eliminating device and first pressure detection device being arranged at the top of steady-flow tank, water inlet manifold, 1 set or more of variable frequency pump device, outfall sewer, the second pressure detection device being arranged on outfall sewer, relief valve, vacuum tank and frequency-changing control system, the water inlet pipe of municipal administration water inlet is provided at the top of the steady-flow tank, the outlet pipe of the current stabilization pot bottom is connected with the water inlet manifold, the variable frequency pump device respectively with water inlet manifold, outfall sewer is connected, one end of the outfall sewer is connected by relief valve with the vacuum tank, the other end of the outfall sewer is connected with service pipe, the frequency-changing control system can receive pressure detecting signal and control the operation of variable frequency pump device.A kind of non-negative pressure frequency-changing water supply device of the utility model has many advantages, such as safe efficient, stable, energy saving, intelligent.
Description
Technical field
The utility model is related to a kind of non-negative pressure frequency-changing water supply devices, belong to pressurization and water supply equipment field.
Background technology
Recently as the continuous quickening of Chinese Urbanization construction process, water supply and sewage work as city basic facilities,
It plays an important role in urban development.In order to meet the residential needs of city dweller, urban architecture is gradually by multilayer
It is advanced to high level or even high-rise building.The upward development of building increases the plot ratio of building, while also increase building
Energy consumption.According to statistics, building total energy consumption accounts for about the 28% of social terminal energy consumption, arranged side by side with industrial energy consumption, traffic energy consumption, becomes China
Three " big power consumers ".Although the building energy consumption in China, particularly Residential Energy Consumption are relatively low relative to developed country, with
The improvement of people's living standards, the trend of accelerated growth can not be ignored.Wherein Residential Energy Consumption accounts for about Energy Consumption of Public Buildings
5%~10%, but plumbing proportion is larger in house, and energy-saving significance is also more obvious compared with public building.
At present, traditional water supply equipment generally use cistern+water pump is pressurized to high-order water tower water-feeding and water tank constant pressure water supply
Etc. modes can also meet user's water demand, but the presence of conventional sinks and water tank so that there are secondary for such way of supplying water
Risk-water tank, its inner wall of pond of pollution easily adhere to dirt, grow moss, and the stagnant water in bottom portion easily grows germ, close
Envelope property is poor, and easily by outside contamination, while municipal ductwork pressure is not utilized effectively, and substantially reduces the energy saving of equipment
Property, increase supply equipment energy consumption.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of non-negative pressure frequency-changing water supply devices, have supply equipment
The advantages that safe efficient, stable, energy saving, intelligent.
In order to solve the above technical problems, a kind of non-negative pressure frequency-changing water supply device of the utility model, the non-negative-pressure variable frequency
Supply equipment include steady-flow tank, the protection negative pressure eliminating device that is arranged at the top of steady-flow tank and first pressure detection device, water inlet manifold,
1 set or more of variable frequency pump device, outfall sewer, the second pressure detection device being arranged on outfall sewer, relief valve, voltage stabilizing
Tank and frequency-changing control system are provided with the water inlet pipe of municipal administration water inlet, the water outlet of the current stabilization pot bottom at the top of the steady-flow tank
Pipe is connected with the water inlet manifold, and the variable frequency pump device is connected respectively with water inlet manifold, outfall sewer, the water outlet
One end of manifold is connected by relief valve with the vacuum tank, and the other end of the outfall sewer is connected with service pipe, institute
State the operation that frequency-changing control system can receive pressure detecting signal and control variable frequency pump device.
As the improvement of the utility model, the variable frequency pump device includes the import service valve sequentially connected, efficiently becomes
Frequency centrifugal water pump, check valve, outlet service valve, the import service valve are connected with the water inlet manifold, the outlet maintenance
Valve is connected with the outfall sewer, and the frequency-changing control system can receive pressure detecting signal and control high-efficiency frequency conversion centrifugal water
The operation of pump.
As the improvement of the utility model, the non-negative pressure frequency-changing water supply device is provided with 1-5 set variable frequency pump devices, institute
It states current stabilization pot bottom and is provided with blowdown valve, secondary pressure protective device is provided on the outfall sewer.
As the improvement of the utility model, the non-negative pressure frequency-changing water supply device is provided with 3 sets of variable frequency pump devices, described
3 sets of variable frequency pump devices are connected with parallel way with water inlet manifold, outfall sewer.
As the improvement of the utility model, the frequency-changing control system can realize mobile frequency conversion and unvarying pressure control, first pass through change
Frequency starts the 1st high-efficiency frequency conversion centrifugal water pump, does not shut down when reaching rated load operation operating mode and switches to power frequency operation, exports
The 2nd high-efficiency frequency conversion centrifugal water pump of variable frequency starting when goal pressure is still not achieved in actual pressure, in the manner described above until outlet
Actual pressure reaches goal pressure.
As the improvement of the utility model, the frequency-changing control system can realize high-efficiency frequency conversion centrifugal water pump alternate run control
System first passes through frequency-changing control system detection and analysis high-efficiency frequency conversion centrifugal water pump run time, when 1 high-efficiency frequency conversion centrifugal water pump connects
Continuous run time reaches setting time, and frequency-changing control system automatically switches to the minimum high-efficiency frequency conversion centrifugal water pump fortune of run time
Row.
As the improvement of the utility model, the frequency-changing control system can realize period voltage control, first analysis system
User's water period demand, according to demand to frequency-changing control system using automatic adjustment target pressure value control mould at times
Formula controls different periods different water outlet ductwork pressures.
A kind of non-negative pressure frequency-changing water supply device of the utility model has an advantageous effect in that：The non-negative-pressure variable frequency supplies water
Equipment has many advantages, such as safe efficient, stable, energy saving, intelligent.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of non-negative pressure frequency-changing water supply device schematic diagram of the utility model.
Fig. 2 is a kind of non-negative pressure frequency-changing water supply device pressure changeable curve of water supply schematic diagram at times of the utility model.
Specific embodiment
As shown in Figure 1, a kind of non-negative pressure frequency-changing water supply device, including steady-flow tank 1, is arranged on the first of 1 top of steady-flow tank
Pressure-detecting device 2, the protection negative pressure eliminating device 3 for being arranged on 1 top of steady-flow tank, the blowdown relief valve for being arranged on 1 bottom of steady-flow tank
4th, 5,3 sets of variable frequency pump devices of water inlet manifold, second pressure detection device 10, secondary pressure protective device 11, outfall sewer 12,
Frequency-changing control system 13, three relief valves 14, vacuum tank 15, the top of the steady-flow tank 1 are provided with the water inlet pipe of municipal administration water inlet,
The outlet pipe of 1 bottom of steady-flow tank is connected with the water inlet manifold 5, and 3 sets of variable frequency pump devices are with parallel way point
It is not connected with water inlet manifold 5, outfall sewer 12, the second pressure detection device 10 and secondary pressure protective device 11 are all provided with
Put on outfall sewer 12, one end of the outfall sewer 12 is connected by relief valve 14 with the vacuum tank 15, it is described go out
The other end of supply mains 12 is connected with service pipe, and the frequency-changing control system 13 can receive the pressure detecting of pressure-detecting device
Signal and the operation for controlling variable frequency pump device.The protection negative pressure eliminating device 3, first pressure detection device 2, blowdown relief valve 4
Be connected composition pot with no negative pressure body with steady-flow tank 1, and the detection signal of first pressure detection device 2 is transmitted to change using 4~20mA
Frequency control system 13.
The variable frequency pump device include sequentially connect import service valve 6, high-efficiency frequency conversion centrifugal water pump 7, check valve 8,
Service valve 9 is exported, the import service valve 6 is connected with the water inlet manifold 5, and the outlet service valve 9 and the water outlet are total
Pipe 12 is connected, and the frequency-changing control system 13 can receive pressure detecting signal and control the operation of high-efficiency frequency conversion centrifugal water pump 7.
The non-negative pressure frequency-changing water supply device can be provided with 1-5 set variable frequency pump devices.
When system works, detection data is transmitted to frequency conversion control by first pressure detection device 2, second pressure detection device 10
System 13 processed is centrifuged by analyzing 10 feedback data of second pressure detection device with desired value balanced differences adjusting control high-efficiency frequency conversion
The speed of service and quantity of water pump 7 are discharged the balance of pipe network actual value and desired value to reach.When first pressure detection device 2 is low
In protection value, frequency-changing control system 13 will protect system-down, while protection negative pressure eliminating device 3 will be opened and negative pressure is inhibited to generate.
When 10 value of feedback of second pressure detection device is higher than protection value, frequency-changing control system 13 will protect system-down.If the second pressure
Force checking device 10 breaks down, 11 open detection of secondary pressure protective device, beyond protection value then stoppage protection.
The frequency-changing control system 13 can realize mobile frequency conversion and unvarying pressure control.When in system worked well, user generates use
During water, the 1st high-efficiency frequency conversion centrifugal water pump 7 of variable frequency starting is first passed through, frequency-changing control system 13 will adjust high-efficiency frequency conversion centrifugal water
7 operation of pump, as water demand amount rises, 1 high-efficiency frequency conversion centrifugal water pump 7 reaches declared working condition still can not meet demand.I.e.
After the 1st 7 frequency conversion of high-efficiency frequency conversion centrifugal water pump reaches the upper limit, the regular hour is run, mesh is still not achieved in outlet actual pressure
When marking pressure requirements, the 1st high-efficiency frequency conversion centrifugal water pump 7 is directly switched to power frequency shape by frequency-changing control system 13 by frequency conversion state
State, while enable the 2nd 7 converting operation of high-efficiency frequency conversion centrifugal water pump.1st high-efficiency frequency conversion centrifugal water pump 7 switched in state
It using switching is not shut down in journey, effectively reduces high-efficiency frequency conversion centrifugal water pump 7 and loads, reduce switching starting current, reach efficient section
The control mode of energy.
The frequency-changing control system can realize that 7 alternate run of high-efficiency frequency conversion centrifugal water pump controls.When water demand amount is smaller
When, frequency-changing control system 13 adjusts a high-efficiency frequency conversion centrifugal water pump 7 and runs, when a high-efficiency frequency conversion centrifugal water pump 7 is continuously transported
When the row time reaches setting value, the current standby mode high-efficiency frequency conversion centrifugal water pump 7 of 13 automatic analysis and judgment of frequency-changing control system is transported
Row time most short unit simultaneously alternately switches to the unit to reach each 7 run time of high-efficiency frequency conversion centrifugal water pump equilibrium automatically
Purpose, effectively extend service life of equipment.
The frequency-changing control system can realize period voltage control.As shown in Fig. 2, according to daily different periods are built
Water demand amount to frequency-changing control system 13 using target pressure value control model is automatically adjusted at times, increases when demand is big
Big system target pressure, pipe network caused by effectively making up pipe network changes in flow rate lose variation value, stablize pipe network terminal pressure and put down
Weighing apparatus；Demand hour reduces system target pressure, reduces pipe network and bears to reduce the pressure more than needed generated since flow reduces pipe network loss
Force value reduces power consumption values while realizing pipe network terminal pressure balance, improves and extend pipe network service life.
It should be noted that specific embodiment is only the explanation and illustration to technical solutions of the utility model, should not
The restriction to technical solutions of the utility model is understood as, it is any that local change is only made using the utility model in essence content
, it should fall into the scope of protection of the utility model.
Claims (4)
1. a kind of non-negative pressure frequency-changing water supply device, it is characterised in that：The non-negative pressure frequency-changing water supply device includes steady-flow tank, setting
Protection negative pressure eliminating device and first pressure detection device, water inlet manifold, 1 set or more of variable frequency pump device at the top of steady-flow tank,
Outfall sewer, second pressure detection device, relief valve, vacuum tank and the frequency-changing control system being arranged on outfall sewer, it is described
The water inlet pipe of municipal administration water inlet is provided at the top of steady-flow tank, the outlet pipe of the current stabilization pot bottom is connected with the water inlet manifold
Logical, the variable frequency pump device is connected respectively with water inlet manifold, outfall sewer, and one end of the outfall sewer passes through relief valve
It is connected with the vacuum tank, the other end of the outfall sewer is connected with service pipe, and the frequency-changing control system can receive
Pressure detecting signal and the operation for controlling variable frequency pump device.
2. a kind of non-negative pressure frequency-changing water supply device according to claim 1, it is characterised in that：The variable frequency pump device packet
Include the import service valve sequentially connected, high-efficiency frequency conversion centrifugal water pump, check valve, outlet service valve, the import service valve and institute
It states water inlet manifold to be connected, the outlet service valve is connected with the outfall sewer, and the frequency-changing control system can receive pressure
Power detects signal and controls the operation of high-efficiency frequency conversion centrifugal water pump.
3. a kind of non-negative pressure frequency-changing water supply device according to claim 2, it is characterised in that：The non-negative-pressure variable frequency supplies water
Equipment is provided with 1-5 set variable frequency pump devices, and the current stabilization pot bottom is provided with blowdown valve, two are provided on the outfall sewer
Stage pressure protective device.
4. a kind of non-negative pressure frequency-changing water supply device according to claim 3, it is characterised in that：The non-negative-pressure variable frequency supplies water
Equipment is provided with 3 sets of variable frequency pump devices, and 3 sets of variable frequency pump devices are with parallel way and water inlet manifold, outfall sewer phase
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721378794.0U CN207499058U (en) | 2017-10-24 | 2017-10-24 | A kind of non-negative pressure frequency-changing water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721378794.0U CN207499058U (en) | 2017-10-24 | 2017-10-24 | A kind of non-negative pressure frequency-changing water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207499058U true CN207499058U (en) | 2018-06-15 |
Family
ID=62501285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721378794.0U Expired - Fee Related CN207499058U (en) | 2017-10-24 | 2017-10-24 | A kind of non-negative pressure frequency-changing water supply device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207499058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604974A (en) * | 2017-10-24 | 2018-01-19 | 浙江融乐环境科技有限公司 | A kind of non-negative pressure frequency-changing water supply device |
-
2017
- 2017-10-24 CN CN201721378794.0U patent/CN207499058U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604974A (en) * | 2017-10-24 | 2018-01-19 | 浙江融乐环境科技有限公司 | A kind of non-negative pressure frequency-changing water supply device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180615 |
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| CF01 | Termination of patent right due to non-payment of annual fee |