CN204001056U - Constant-pressure variable supply equipment - Google Patents
Constant-pressure variable supply equipment Download PDFInfo
- Publication number
- CN204001056U CN204001056U CN201420406536.9U CN201420406536U CN204001056U CN 204001056 U CN204001056 U CN 204001056U CN 201420406536 U CN201420406536 U CN 201420406536U CN 204001056 U CN204001056 U CN 204001056U
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- China
- Prior art keywords
- pressure
- pressure sensor
- supply equipment
- water
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000008400 supply water Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Control Of Fluid Pressure (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of constant-pressure variable supply equipment, comprise n water pump, a n frequency converter, the first pressure sensor, pressure compensation tank, the second pressure sensor and controller; The water inlet of n water pump connects the water inlet of supply equipment, and the delivery port of n water pump connects the outlet conduit of supply equipment; On the outlet conduit of supply equipment, be provided with the first pressure sensor, pressure compensation tank, the second pressure sensor, pressure compensation tank is between the first pressure sensor and the second pressure sensor; The signal output part of the first pressure sensor, the second pressure sensor is connected with the IO mouth of controller; The IO mouth of controller is connected with the pressure control end of pressure compensation tank; Controller is by the rotating speed of i water pump of i Frequency Converter Control, 1≤i≤n.The utility model can adjust the water yield automatically according to the demand size of water supply volume, while assure feed water constant pressure, and simple in structure, pressure of supply water is stable.
Description
Technical field
The utility model relates to supply equipment technical field, is specifically related to a kind of constant-pressure variable supply equipment.
Background technology
In the production of all kinds of building daily life waters, all kinds of industrial and mining enterprises, living water use process, while often occurring that water supply volume increases, the phenomenon that hydraulic pressure reduces, although the supply equipment kind of using in existing regional water supply is also a lot, but the quantity of the hydraulic pressure of existing supply equipment and water is negative correlation, when using water number amount various flow large, hydraulic pressure can diminish accordingly.Such as the higher community user of floor, when, just often there is the phenomenon that high-rise buildings hydraulic pressure is very low the water use peak time period in the evening at noon, the normal water of the very little impact of water yield when serious, and few once water supply volume, hydraulic pressure can increase suddenly, causes sometimes pipe network to damage.
Utility model content
The technical problems to be solved in the utility model: supply water or realized constant-pressure variable water supply but device structure complexity even if existing part supply equipment cannot be realized constant-pressure variable, pressure of supply water is still stable not.
In order to solve above technical problem, the technical solution of the utility model is as follows: constant-pressure variable supply equipment, it is characterized in that, and comprise n water pump, a n frequency converter, the first pressure sensor, pressure compensation tank, the second pressure sensor and controller;
The water inlet of n water pump connects the water inlet of supply equipment, and the delivery port of n water pump connects the outlet conduit of supply equipment;
On the outlet conduit of supply equipment, be provided with the first pressure sensor, pressure compensation tank, the second pressure sensor, pressure compensation tank is between the first pressure sensor and the second pressure sensor;
The signal output part of the first pressure sensor, the second pressure sensor is connected with the IO mouth of controller;
The IO mouth of controller is connected with the pressure control end of pressure compensation tank;
Controller is by the rotating speed of i water pump of i Frequency Converter Control, 1≤i≤n.
Further, described controller adopts PLC to realize.
Compare with prior art scheme, the beneficial effects of the utility model: constant-pressure variable supply equipment of the present utility model can adjust the water yield automatically according to the demand size of water supply volume, while assure feed water constant pressure, and simple in structure, pressure of supply water is stable, and intelligent degree is high; Water pump of each Frequency Converter Control, rather than the Push And Release of simple control water pump, so water yield is accurate; On outlet conduit, be provided with two pressure sensors and difference by two pressure sensors can be easy to judge whether pressure compensation tank normally works.
Accompanying drawing explanation
Fig. 1 is the utility model generalized section;
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Constant-pressure variable supply equipment, comprises 8 water pumps, 8 frequency converters, the first pressure sensor, pressure compensation tank, the second pressure sensor and controllers; The water inlet of 8 water pumps connects the water inlet of supply equipment, and the delivery port of 8 water pumps connects the outlet conduit of supply equipment; On the outlet conduit of supply equipment, be provided with the first pressure sensor, pressure compensation tank, the second pressure sensor, pressure compensation tank is between the first pressure sensor and the second pressure sensor; The signal output part of the first pressure sensor, the second pressure sensor is connected with the IO mouth of controller; The IO mouth of controller is connected with the pressure control end of pressure compensation tank; Controller is by the rotating speed of i water pump of i Frequency Converter Control, 1≤i≤8.
Wherein, described controller adopts PLC to realize.
The utility model operating principle: know current normal discharge pressure according to the first pressure sensor, again according to target discharge pressure, thereby obtain the pressure size that pressure compensation tank need to compensate, controller controlled pressure compensating tank carries out pressure compensation, the second pressure sensor can real-time judge pressure compensation tank the pressure of compensation whether correct; Controller, by each water pump of each Frequency Converter Control, really realized the control of accurate water yield, rather than traditional controller is just controlled the Push And Release of water pump.
Claims (2)
1. constant-pressure variable supply equipment, is characterized in that, comprises n water pump, a n frequency converter, the first pressure sensor, pressure compensation tank, the second pressure sensor and controller;
The water inlet of n water pump connects the water inlet of supply equipment, and the delivery port of n water pump connects the outlet conduit of supply equipment;
On the outlet conduit of supply equipment, be provided with the first pressure sensor, pressure compensation tank, the second pressure sensor, pressure compensation tank is between the first pressure sensor and the second pressure sensor;
The signal output part of the first pressure sensor, the second pressure sensor is connected with the IO mouth of controller;
The IO mouth of controller is connected with the pressure control end of pressure compensation tank;
Controller is by the rotating speed of i water pump of i Frequency Converter Control, 1≤i≤n.
2. constant-pressure variable supply equipment according to claim 1, is characterized in that, described controller adopts PLC to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420406536.9U CN204001056U (en) | 2014-07-22 | 2014-07-22 | Constant-pressure variable supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420406536.9U CN204001056U (en) | 2014-07-22 | 2014-07-22 | Constant-pressure variable supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204001056U true CN204001056U (en) | 2014-12-10 |
Family
ID=52041080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420406536.9U Expired - Lifetime CN204001056U (en) | 2014-07-22 | 2014-07-22 | Constant-pressure variable supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204001056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674899A (en) * | 2015-02-13 | 2015-06-03 | 广州市百福电气设备有限公司 | Water supply system and method |
-
2014
- 2014-07-22 CN CN201420406536.9U patent/CN204001056U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674899A (en) * | 2015-02-13 | 2015-06-03 | 广州市百福电气设备有限公司 | Water supply system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |