CN205448459U - Pump station cooling water circulation system - Google Patents
Pump station cooling water circulation system Download PDFInfo
- Publication number
- CN205448459U CN205448459U CN201620170360.0U CN201620170360U CN205448459U CN 205448459 U CN205448459 U CN 205448459U CN 201620170360 U CN201620170360 U CN 201620170360U CN 205448459 U CN205448459 U CN 205448459U
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- China
- Prior art keywords
- water
- cooling water
- cooling
- control valve
- water circulation
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- Expired - Fee Related
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Abstract
The utility model discloses a pump station cooling water circulation system, including roof tank, water pump bearing and cooling tower, and the intercommunication roof tank, water pump bearing and cooling tower's cooling water circulation pipe network, the cooling water circulation pipe network is provided with circulating water pump, its characterized in that the water pump bearing sets up temperature sensor, set up pressure control valve door and flow control valve on the cooling water circulation pipe network. The utility model discloses an install pressure control valve door and flow control valve additional in the cooling water circulation pipe network, can be based on and strengthen the cooling effect through adjust pressure and flow. The utility model discloses an install pressure control valve door and flow control valve additional in the cooling water circulation pipe network, can be according to the temperature control flow control valve and the pressure control valve door of water pump bearing to reduce the waste of cooling water. The utility model has the advantages of optimize cooling water circulation system, strengthen the cooling effect, realize energy saving and emission reduction.
Description
Technical field
This utility model relates to pumping station system, particularly relates to a kind of pumping plant cooling water recirculation system.
Background technology
Shanghai City Municipal Drainage Co., Ltd. Bai Long port sewage transport branch company SB pumping plant has 6 large-scale mixed-flow pumps, and this model water pump has metal (upper cooling water and water pump stuffing box to seal water-cooled protection system at water three.Cooling water and seal water supply water all use tap water supply, bearing cooling water to have employed internal circulation apparatus, due to the factor of operation principle, cooling water circulation start in pump machine open before, after stopping at termination of pumping, quantity of circulating water is also fixing.Under irrational blood circulation ruuning situation, calculating all kinds of loss, monthly cooling water tap water consumption is still a considerable spending.According to operating statistic analysis, pumping plant monthly cooling water water consumption, about at 80,000,000 tons, wherein has nearly 50% to be all lost in irrational blood circulation.In the face of the hugest water yield waste, the city of such a water quality type hydropenia in Shanghai, substantially with branch company's energy-saving and emission-reduction and walk the general orientation of sustainable development path and have the biggest difference, the energy-saving and cost-reducing problem of solution cooling water recirculation system to also become the most important thing.
Original blood circulation Starting mode is dependent on valve and starts, and before driving main pump, first removes pump machine layer ON cycle pipeline valve, after regulating flow and the pressure of needs, is then turned on water circulating pump, pressurizes descaling line pressure, finally open feed pump.After termination of pumping, then pump machine layer is gone to close circulating line valve.Such control mode is simple and clear, but there is huge drawback: 1) cooling water recirculation system starts too early, and motor, water pump bearing do not produce temperature rise, causes a large amount of waste cooling down water.2) workman's manual working intensity is big, and there is everybody different situation of valve opening, and pressure and flow-control for pipeline are the most accurate.3) cooling circulating water flow fix, pressure fixing, water pump introduces after converter technique, and rotating speed becomes again, and motor, water pump bearing temperature rise become again, and cooling circulating water cannot change, and cooling effect is the most preferable.
Utility model content
In order to solve problems of the prior art, this utility model provides a kind of pumping plant cooling water recirculation system, it is possible to optimize cooling water recirculation system, strengthens cooling effect.
To achieve these goals, the technical scheme that this utility model is used is as follows: a kind of pumping plant cooling water recirculation system, including roof tank, water pump bearing and cooling tower, and connect the cooling water circulation pipe network of described roof tank, water pump bearing and cooling tower, described cooling water circulation network collocation has water circulating pump, it is characterized in that described water pump bearing arranges temperature sensor, described cooling water circulation pipe network arranges pressure control valve and flow control valve.
According to preferred embodiment of the present utility model, described cooling tower also sets up water filling water pipe and Water filling valve, and the Inlet and outlet water side of described cooling tower is respectively provided with inflow temperature sensor and leaving water temperature sensors.
This utility model, by installing pressure control valve and flow control valve in cooling water circulation pipe network additional, can control flow control valve and pressure control valve according to the temperature of water pump bearing, in order to reduce the waste of cooling water.Meanwhile, according to cooling tower Inlet and outlet water temperature difference, it is determined that the water temperature in water tower, consider that water tower is interior the need of continuing water filling, carry out cooling water temperature, thus ensure the reasonable working temperature of cooling water recirculation system, the adverse effect that bearing cooling is produced by the reduction water temperature of amplitude peak.The utility model has the advantage of optimization cooling water recirculation system, strengthen cooling effect, it is achieved energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Detailed description of the invention
With embodiment, this utility model is explained in detail below in conjunction with the accompanying drawings.
Figure includes
Roof tank 1,
Water circulating pump 2,
Pressure control valve 3,
Flow control valve 4,
Water pump bearing 5,
Cooling tower 6,
Inflow temperature sensor 7,
Leaving water temperature sensors 8.
As shown in Figure 1, a kind of pumping plant cooling water recirculation system, including roof tank 1, water pump bearing (feed pump bearing) 5 and cooling tower 6, and connect described roof tank 1, water pump bearing 5 and the cooling water circulation pipe network of cooling tower 6, described cooling water circulation network collocation has water circulating pump 2, it is characterized in that described water pump bearing arranges temperature sensor, pressure control valve 3 and flow control valve 4 are set on described cooling water circulation pipe network, described pressure control valve 3, flow control valve 4, temperature sensor and main pump rotational speed meters are all connected with control unit, the bearing temperature rise that described control unit obtains according to temperature sensor, judge that bearing temperature rise has reached the setting threshold values that blood circulation starts the most, flow control valve and pressure control valve is then opened as reached setting threshold values.
Required cooling water is the pressure that the installation site according to feed pump determines to provide, and is also lift.If motor setting height(from bottom) 5 meters in pump, water circulating pump setting height(from bottom) is-15 meters, both differences 20 meters, so for ensureing to provide the cooling water of whole pump machine bearing, recirculated water pump lift at least to reach 20 meters, i.e. can guarantee that the discharge pressure of 0.2MPa, this can show on the Pressure gauge of outlet pipe.
The connected mode of cooling water circulation pipe network is: roof tank is connected with water pump cooling supply mains by water circulating pump, on water pump cooling supply mains, pressure control valve and flow control valve are set, water pump cooling supply mains is connected to the cooling water inlet of water pump bearing and connects, the coolant outlet of water pump bearing is connected to the entrance of cooling tower by return main, and the outlet of cooling tower is connected to roof tank.
According to preferred embodiment of the present utility model, described cooling tower also sets up water filling water pipe and Water filling valve, the Inlet and outlet water side of described cooling tower is respectively provided with inflow temperature sensor 7 and leaving water temperature sensors 8, in order to detect temperature and the temperature difference of cooling water turnover water tower, control unit passes in and out temperature and the opening and closing of temperature difference control Water filling valve of water tower according to cooling water, to control to open water filling and stopping water filling.
Meanwhile, at cooling tower Inlet and outlet water side reload temperature sensor, in order to detect temperature and the temperature difference of cooling water turnover water tower.If Inlet and outlet water temperature difference is very big, then toward water filling in cooling tower, help cooling water temperature to rational operating temperature.If Inlet and outlet water temperature difference is the least, then stop water filling, keep cooling water temperature in rational operating temperature.Use this method, it is ensured that the reasonable working temperature of cooling water recirculation system, the adverse effect that bearing cooling is produced by the reduction water temperature of amplitude peak.
According to specific embodiment of the utility model; temperature sensor uses the big KZW-HPT type little Hirschmann temperature sensor produced in the Kunlun, and conventional maximum temperature-measuring range is-200 DEG C ~ 450 DEG C, arbitrarily can select in centre; conventional range has 0-100 DEG C; 0-150 DEG C, 0-300 DEG C ,-50 ~ 100 DEG C;-50 ~ 200 DEG C; output signal is 4-20mA, and power supply 24VDC uses the protection pipe of 304 stainless steels, it is ensured that sensor durable in use.Cooling tower is poor according to Inlet and outlet water sensor temperature, it is determined that the water temperature in water tower, it is considered to the need of continuing water filling in water tower, carry out cooling water temperature.
Above content is to combine concrete preferred implementation further detailed description of the utility model, it is impossible to assert that this utility model is embodied as being confined to these explanations above-mentioned.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. a pumping plant cooling water recirculation system, including roof tank, water pump bearing and cooling tower, and connect the cooling water circulation pipe network of described roof tank, water pump bearing and cooling tower, described cooling water circulation network collocation has water circulating pump, it is characterized in that described water pump bearing arranges temperature sensor, described cooling water circulation pipe network arranges pressure control valve and flow control valve.
2. pumping plant cooling water recirculation system as claimed in claim 1, it is characterised in that described cooling tower also sets up water filling water pipe and Water filling valve, and the Inlet and outlet water side of described cooling tower is respectively provided with inflow temperature sensor and leaving water temperature sensors.
3. pumping plant cooling water recirculation system as claimed in claim 2, it is characterised in that temperature sensor uses the little Hirschmann temperature sensor of KZW-HPT type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170360.0U CN205448459U (en) | 2016-03-07 | 2016-03-07 | Pump station cooling water circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170360.0U CN205448459U (en) | 2016-03-07 | 2016-03-07 | Pump station cooling water circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205448459U true CN205448459U (en) | 2016-08-10 |
Family
ID=56605119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620170360.0U Expired - Fee Related CN205448459U (en) | 2016-03-07 | 2016-03-07 | Pump station cooling water circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205448459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110377077A (en) * | 2019-07-31 | 2019-10-25 | 重庆市渝琥玻璃有限公司 | Pump house automatic start-stop control system |
-
2016
- 2016-03-07 CN CN201620170360.0U patent/CN205448459U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110377077A (en) * | 2019-07-31 | 2019-10-25 | 重庆市渝琥玻璃有限公司 | Pump house automatic start-stop control system |
| CN110377077B (en) * | 2019-07-31 | 2021-02-23 | 重庆市渝琥玻璃有限公司 | Automatic pump room starting and stopping control system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20170307 |