CN208398672U - A kind of circulating cooling water of power plant system using closed cooling tower - Google Patents
A kind of circulating cooling water of power plant system using closed cooling tower Download PDFInfo
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- CN208398672U CN208398672U CN201821492112.3U CN201821492112U CN208398672U CN 208398672 U CN208398672 U CN 208398672U CN 201821492112 U CN201821492112 U CN 201821492112U CN 208398672 U CN208398672 U CN 208398672U
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- water
- circulating
- cooling tower
- closed cooling
- power plant
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Abstract
Subtract dirty technology the utility model relates to the highly water intensive industry in resource and environment field is water-saving.Purpose is to provide a kind of circulating cooling water of power plant system using closed cooling tower, which should have the characteristics that good cooling results, water-saving result are significant, reliable for operation.Technical solution is: a kind of circulating cooling water of power plant system using closed cooling tower, it is characterized by: the system includes closed cooling tower, the circulating water outlet of closed cooling tower is connected to the cooling water inlet of condenser by water supplying pipe and is also connected to soft water pond by water supply pipe, and the circulating water intake of closed cooling tower is connected to the cooling water outlet of condenser by return pipe；The water supplying pipe is equipped with water circulating pump；The water supply pipe is pumped equipped with constant pressure supply water.
Description
Technical field
Subtract dirty technology the utility model relates to the highly water intensive industry in resource and environment field is water-saving, is returned for middle-size and small-size waste heat
The steam exhaust for receiving the water-cooled turbogenerator group in power station is cooling (providing cooling water for turbine condenser), specifically a kind of use
The circulating cooling water of power plant system of closed cooling tower.
Background technique
In general, it is generally Small Turbine group in waste heat, the complementary energy generating set that energy conservation and environmental protection is implemented, and
As the design parameter of Pump for Medium and Small Power Generating Set is higher and higher, unit environmental benefit is more and more obvious, and realizes that energy conservation subtracts to industrial enterprise
Row has very big benefit.
But the water consume of Pump for Medium and Small Power Generating Set is relatively large, the best approach for reducing water consume is exactly to use air cooling unit, and empty
Cold group but haves the shortcomings that low efficiency, load fluctuation are big, is further improved.
Utility model content
The purpose of the utility model is to overcome the deficiencies in above-mentioned background technique, provide a kind of electricity using closed cooling tower
Factory's recirculating cooling water system, the system should have the characteristics that good cooling results, water-saving result are significant, reliable for operation.
The technical solution of the utility model is:
A kind of circulating cooling water of power plant system using closed cooling tower, it is characterised in that: the system includes that enclosed is cooling
The circulating water outlet of tower, closed cooling tower is connected to the cooling water inlet of condenser by water supplying pipe and is also connected to by water supply pipe
Soft water pond, the circulating water intake of closed cooling tower are connected to the cooling water outlet of condenser by return pipe；It is set on the water supplying pipe
There is water circulating pump；The water supply pipe is pumped equipped with constant pressure supply water.
Water supplying pipe between the closed cooling tower and water circulating pump is equipped with pressure transmitter, PLC controller electrical connection
Pressure transmitter and constant pressure supply water pump.
The circulating water outlet connection of the closed cooling tower is equipped with the first relief tube of solenoid valve.
The circulating water outlet connection of the closed cooling tower is equipped with the second relief tube of safety valve.
Pass through the first relief tube is connected to soft water pond with the second relief tube to the circulating water outlet of the closed cooling tower simultaneously.
The constant pressure supply water pump is frequency conversion speed adjusting pump.
The beneficial effects of the utility model are:
The utility model be it is a kind of by the cooling equipment application of water-saving enclosed in the device of the biggish water chiller of water consumption,
It is main that the steam exhaust being discharged after water-cooled turbogenerator power generation is cooled down by closed cooling tower, it realizes from water cooling to sky
Cold transformation (a kind of deformation of indirect air cooling), can be greatly lowered power plant's water consume and the energy conservation for promoting cogeneration unit subtracts
Benefit is arranged, the small-size water-cooling unit particularly suitable for drought and water-scarce area construction.
Detailed description of the invention
Fig. 1 is the connection relationship diagram of the utility model.
Specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model be not limited to
Lower embodiment.
As shown in Figure 1, a kind of circulating cooling water of power plant system using closed cooling tower, including closed cooling tower 1, soft water
Pond 4, water circulating pump 6, constant pressure supply water pump 7, pressure transmitter 8 and PLC controller 15.
The closed cooling tower is the main heat exchange equipment of the utility model, it is that pipe heat exchanger is placed in tower, tower
Top sets air duct and blower, and recirculated water in exchange heat air and pipe heat exchanger heat exchange, the outer shower water of pipe and pipe is aspirated by blower
Heat exchange guarantees cooling effect.Since recirculated water is closed cycle in pipe, it can guarantee that water quality is not contaminated, avoids simultaneously
The evaporation and wind of internal cooling water are lost, and the water for managing outer shower water is smaller than recirculated water, can reduce wind and evaporation loss
Water when outside air temperature is lower, can cut off water-spray system, further enhance water-saving result.As shown in Figure 1, enclosed is cooling
The top of tower is equipped with circulating water intake and bottom is equipped with circulating water outlet, and circulating water intake is furnished with import motor-driven valve 1.1, circulation
Water out is furnished with outlet electric valve 1.2, and the top of condenser is equipped with cooling water outlet and bottom is equipped with cooling water inlet.
The circulating water outlet of the closed cooling tower is connected to the cooling water inlet of condenser 16, water supplying pipe by water supplying pipe 2
It is equipped with 8, two water circulating pump 6, pressure transmitter water supply pipe valves 14 (electronic).The pressure transmitter and one of water supply
Pipe valve is arranged on the water supplying pipe between circulating water outlet and water circulating pump, and the setting of another water supply pipe valve is in water circulating pump and coagulates
On water supplying pipe between vapour device.The circulating water intake of the closed cooling tower is gone out by the cooling water that return pipe 5 is connected to condenser
Mouthful.
The circulating water outlet of the closed cooling tower also passes through water supply pipe 3 and is connected to soft water pond 4, and water supply pipe is mended equipped with level pressure
Water pump 7 and moisturizing pipe valve 13.The constant pressure supply water pump is frequency conversion speed adjusting pump, can be become according to the pressure of water circulating pump water inlet
Change adjustment working frequency, so that the intake pressure of water circulating pump be maintained to stablize.
The PLC controller electrical connection pressure transmitter and constant pressure supply water pump.Siemens can be selected in the PLC controller
S7-300.The pressure transmitter is used to send the pressure signal of water circulating pump water inlet, PLC controller root to PLC controller
According to the revolving speed that pressure signal stepless changing constant pressure supply water pumps, guarantee that the intake pressure of water circulating pump is stablized.
The circulating water outlet of the closed cooling tower also passes through the first relief tube 9 and is connected to soft water simultaneously with the second relief tube 11
Pond, the first relief tube are equipped with solenoid valve 10, and the second relief tube is equipped with safety valve 12.The utility model is let out when releasing water
Stream can be discharged into soft water pond by the first relief tube and the second relief tube, wherein the cracking pressure of solenoid valve is pumped than constant pressure supply water
The cracking pressure of the high 50kPa of termination of pumping pressure, safety valve are 100kPa higher than the termination of pumping pressure that constant pressure supply water pumps, when superpressure occurs in system
When open solenoid valve sluice, open the safety-valve again when pressure still increases, therefore increase system reliability of operation.
The equal buyable of each component of the utility model obtains.
The course of work of the utility model is as follows:
The utility model is using the cooling electric power plant circulating water of closed cooling tower, and water circulating pump is by closed cooling tower water after cooling
It is sent after boosting to condenser (or subsidiary engine cooler), water returns again to closed cooling tower cooling after carrying heat, passes through closed cycle
Flow cooling steam exhaust；The utility model also uses constant-pressure type water supplementing method simultaneously, and it is fixed to be adjusted according to the pressure change of system
The revolving speed of small pump is pressed, guarantees that moisturizing point pressure is constant, solenoid valve sluicing is first opened when superpressure occurs in system, if pressure is still
Open the safety-valve sluicing again when old raising.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, it is all described in the claims.
Claims (6)
1. a kind of circulating cooling water of power plant system using closed cooling tower, it is characterised in that: the system includes closed cooling tower
(1), the circulating water outlet of closed cooling tower is connected to the cooling water inlet of condenser by water supplying pipe (2) and also passes through water supply pipe
(3) soft water pond (4) are connected to, the circulating water intake of closed cooling tower is connected to the cooling water outlet of condenser by return pipe (5)；Institute
Water supplying pipe is stated equipped with water circulating pump (6)；The water supply pipe is equipped with constant pressure supply water pump (7).
2. a kind of circulating cooling water of power plant system using closed cooling tower according to claim 1, it is characterised in that: institute
The water supplying pipe stated between closed cooling tower and water circulating pump is equipped with pressure transmitter (8), and PLC controller (15) is electrically connected pressure
Transmitter and constant pressure supply water pump.
3. a kind of circulating cooling water of power plant system using closed cooling tower according to claim 2, it is characterised in that: institute
The circulating water outlet connection for stating closed cooling tower is equipped with first relief tube (9) of solenoid valve (10).
4. a kind of circulating cooling water of power plant system using closed cooling tower according to claim 3, it is characterised in that: institute
The circulating water outlet connection for stating closed cooling tower is equipped with second relief tube (11) of safety valve (12).
5. a kind of circulating cooling water of power plant system using closed cooling tower according to claim 4, it is characterised in that: institute
It states the circulating water outlet of closed cooling tower while passing through the first relief tube and be connected to soft water pond with the second relief tube.
6. a kind of circulating cooling water of power plant system using closed cooling tower according to claim 5, it is characterised in that: institute
Stating constant pressure supply water pump is frequency conversion speed adjusting pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492112.3U CN208398672U (en) | 2018-09-12 | 2018-09-12 | A kind of circulating cooling water of power plant system using closed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492112.3U CN208398672U (en) | 2018-09-12 | 2018-09-12 | A kind of circulating cooling water of power plant system using closed cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208398672U true CN208398672U (en) | 2019-01-18 |
Family
ID=65129831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821492112.3U Active CN208398672U (en) | 2018-09-12 | 2018-09-12 | A kind of circulating cooling water of power plant system using closed cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208398672U (en) |
-
2018
- 2018-09-12 CN CN201821492112.3U patent/CN208398672U/en active Active
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