CN204475426U - Three desk-top pairs of constant pressure water supply equipment - Google Patents
Three desk-top pairs of constant pressure water supply equipment Download PDFInfo
- Publication number
- CN204475426U CN204475426U CN201520072574.XU CN201520072574U CN204475426U CN 204475426 U CN204475426 U CN 204475426U CN 201520072574 U CN201520072574 U CN 201520072574U CN 204475426 U CN204475426 U CN 204475426U
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- Prior art keywords
- water
- water pump
- controller
- frequency converter
- desk
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- Expired - Fee Related
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Abstract
The utility model provides a kind of three desk-top pairs of constant pressure water supply equipment, comprise controller, controller is provided with control panel, controller is connected with two frequency converters, each frequency converter is connected with two motor controllers, amount to four motor controllers, wherein two motor controllers connecting different frequency converter connect a water pump in parallel jointly, two other motor controller respectively connects a water pump, amount to three water pumps, three water pumps are connected between water inlet pipe and outlet pipe in parallel, described water inlet pipe is provided with intake pressure sensor, outlet pipe is provided with discharge pressure sensor and electro connecting pressure gauge.Three desk-top pairs of constant pressure water supply equipment provided by the utility model can drag three water pumps by two frequency converters, cost is low, energy-conserving and environment-protective, and the frequent switching of water pump between frequency conversion and power frequency can be avoided, reduce dash current, in addition, water pump can realize soft start and soft stop, effectively can eliminate water hammer.
Description
Technical field
The utility model relates to a kind of public utility, especially a kind of building constant pressure water supply equipment.
Background technology
Current city high rise building supplies water, most employing frequency-changing pressure stabilizing mode, traditional frequency-changing pressure stabilizing equipment is when equipment needs multiple stage pump group, the mode that control system generally adopts a frequency converter dragging multiple water pump or frequency converter to drag separately a water pump is equipped with, although can solve the water supply problem of high building, when an employing frequency converter dragging multiple water pump, water pump frequently switches between power frequency and frequency conversion, easy generation dash current, too increases the fault rate of system simultaneously; When employing frequency converter fixing dragging separately water pump, can realize soft start and soft stop, effectively can eliminate again the water hammer of water pump, but cost is too high, especially when also needing to add reserve pump, cost is higher.
Utility model content
For solving the problem, the utility model provides a kind of three desk-top pairs of constant pressure water supply equipment, and its technical scheme adopted is as follows:
A kind of three desk-top pairs of constant pressure water supply equipment, comprise controller, frequency converter, motor controller, water pump, water inlet pipe, outlet pipe, controller is provided with control panel, frequency converter respectively with controller, motor controller is connected, motor controller is connected with water pump, water pump is connected between water inlet pipe and outlet pipe, described controller is connected with two frequency converters, each frequency converter is connected with two motor controllers, amount to four motor controllers, wherein two motor controllers connecting different frequency converter connect a water pump in parallel jointly, two other motor controller respectively connects a water pump, amount to three water pumps, three water pumps are connected between water inlet pipe and outlet pipe in parallel, described water inlet pipe is provided with intake pressure sensor, outlet pipe is provided with discharge pressure sensor and electro connecting pressure gauge.
By the realization of technique scheme, three desk-top pairs of constant pressure water supply equipment provided by the utility model can drag three water pumps by two frequency converters, cost is low, energy-conserving and environment-protective, and the frequent switching of water pump between frequency conversion and power frequency can be avoided, reduce dash current, in addition, water pump can realize soft start and soft stop, effectively can eliminate water hammer.
Accompanying drawing explanation
Fig. 1 provides by the utility model the structural representation of three desk-top pairs of constant pressure water supply equipment.
Detailed description of the invention
As shown in Figure 1, a kind of three desk-top pairs of constant pressure water supply equipment, comprise controller 1, two frequency converters 21, 22, four motor controllers 31, 32, 33, 34, three water pumps 41, 42, 43, water inlet pipe 5, outlet pipe 6, controller 1 is provided with control panel 11, water pump 41 can be shown by control panel 11, 42, the running status of 43 also can the operational factor of whole equipment, controller 1 respectively with frequency converter 21, 22 are connected, frequency converter 21 is connecting motor controller 31 respectively, 32, frequency converter 22 is connecting motor controller 33 respectively, 34, motor controller 31 connects water pump 41, motor controller 34 connects water pump 43, motor controller 32, 33 connect water pump 42 in parallel jointly, three water pumps 41, 42, 43 are connected between water inlet pipe 5 and outlet pipe 6 in parallel, water inlet pipe 5 is provided with intake pressure sensor 7, outlet pipe 6 is provided with discharge pressure sensor 8 and electro connecting pressure gauge 9.
This kind three desk-top pairs of constant pressure water supply equipment operationally, electro connecting pressure gauge 9 detects the hydraulic pressure of water pipe in real time, the hydraulic pressure sensed in real time is sent to controller 1 by intake pressure sensor 7 and discharge pressure sensor 8, under normal circumstances, motor controller 31, 34 connect, frequency converter 21, 22 control water pump 41 respectively, 43 converting operations, once water pump 41 fault, motor controller 31 can send fault-signal to controller 1, controller 1 disconnects motor controller 31 and connects motor switch simultaneously and connect motor controller 32, automatically switch to frequency converter 21 and control water pump 42, frequency converter 22 controls water pump 43, same when water pump 43 fault, motor controller 34 disconnects, and motor controller 33 is connected, and equipment automatically switches to frequency converter 21 and controls water pump 41, and frequency converter 22 controls water pump 42 converting operation, when water pump 41 and 43 equal fault, water pump 42 preferentially selects frequency converter 21 to control, and when frequency converter 21 fault, water pump 42 adopts frequency converter 22 to control again, three water pump 41,42,43 rotation converting operations under normal circumstances, when one of them fault of water pump, equipment is automatically skipped fault water pump and is switched Frequency Converter Control simultaneously, next water pump is opened in frequency conversion, do not allow motor controller 31 and 32 or 32 and 33 or 33 and 34 to connect in any case simultaneously, the water pressure invariableness of outlet pipe 6 can be ensured, and then ensure that the user be connected with outlet pipe 6 supplies water stable.
Claims (1)
1. one kind three desk-top pairs constant pressure water supply equipment, comprise controller, frequency converter, motor controller, water pump, water inlet pipe, outlet pipe, controller is provided with control panel, frequency converter respectively with controller, motor controller is connected, motor controller is connected with water pump, water pump is connected between water inlet pipe and outlet pipe, it is characterized in that: described controller is connected with two frequency converters, each frequency converter is connected with two motor controllers, amount to four motor controllers, wherein two motor controllers connecting different frequency converter connect a water pump in parallel jointly, two other motor controller respectively connects a water pump, amount to three water pumps, three water pumps are connected between water inlet pipe and outlet pipe in parallel, described water inlet pipe is provided with intake pressure sensor, outlet pipe is provided with discharge pressure sensor and electro connecting pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072574.XU CN204475426U (en) | 2015-02-03 | 2015-02-03 | Three desk-top pairs of constant pressure water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072574.XU CN204475426U (en) | 2015-02-03 | 2015-02-03 | Three desk-top pairs of constant pressure water supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204475426U true CN204475426U (en) | 2015-07-15 |
Family
ID=53631229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520072574.XU Expired - Fee Related CN204475426U (en) | 2015-02-03 | 2015-02-03 | Three desk-top pairs of constant pressure water supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204475426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049612A (en) * | 2016-05-24 | 2016-10-26 | 安徽恒远自动化仪表有限公司 | Multi-pump parallel-connected variable-frequency constant-pressure variable-amount water supply control system |
| CN107447812A (en) * | 2017-09-11 | 2017-12-08 | 浙江志展智能科技有限公司 | A kind of intelligent networking formula control system of water pump |
-
2015
- 2015-02-03 CN CN201520072574.XU patent/CN204475426U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049612A (en) * | 2016-05-24 | 2016-10-26 | 安徽恒远自动化仪表有限公司 | Multi-pump parallel-connected variable-frequency constant-pressure variable-amount water supply control system |
| CN106049612B (en) * | 2016-05-24 | 2018-04-03 | 安徽恒远自动化仪表有限公司 | A kind of multiple ontology frequency-changing pressure stabilizing variable water management system |
| CN107447812A (en) * | 2017-09-11 | 2017-12-08 | 浙江志展智能科技有限公司 | A kind of intelligent networking formula control system of water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20180203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |