CN203083200U - Circulating water refrigeration system in thermal power plant - Google Patents
Circulating water refrigeration system in thermal power plant Download PDFInfo
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- CN203083200U CN203083200U CN 201320102060 CN201320102060U CN203083200U CN 203083200 U CN203083200 U CN 203083200U CN 201320102060 CN201320102060 CN 201320102060 CN 201320102060 U CN201320102060 U CN 201320102060U CN 203083200 U CN203083200 U CN 203083200U
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- water
- power plant
- circulating
- thermal power
- refrigeration system
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 238000005057 refrigeration Methods 0.000 title claims abstract description 82
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 19
- 239000008400 supply water Substances 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 6
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 6
- 230000003020 moisturizing effect Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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Abstract
The utility model discloses a circulating water refrigeration system in a thermal power plant. The circulating water refrigeration system comprises a heat supply network, and a water supply main pipeline (11) and a water return main pipeline (12) respectively connected with the heat supply network, wherein the circulating water refrigeration system further comprises a second hot water supply branch (17), a second hot water return branch (18) and a refrigerating machine (38) for refrigerating; the second hot water supply branch (17) is connected between the water supply main pipeline (11) and a water supply port of the refrigerating machine (38); and the second hot water return branch (18) is connected between a water return port of the refrigerating machine (38) and the water return main pipeline (12). Refrigeration is realized by adopting a heat source of circulating water in the thermal power plant, and refrigerating water for an air conditioner can be provided for users in summer, so that the energy source utilization efficiency of the thermal power plant is improved, the energy of low-temperature steam of a turbine is effectively utilized, refrigeration is realized without electric power provided by the thermal power plant, and the waste of energy resource is reduced.
Description
Technical field
The utility model relates to field of energy utilization, particularly, relates to a kind of circulating-water in thermal power plant refrigeration system.
Background technology
In the existing city heat supply net, steam power plant's (or heating plant) supplies to each user with high-temperature-hot-water (110～130 ℃) usually, to heat.But this using energy source can only be carried out in the winter time.In summer, the low-temperature water heating of steam power plant, hot vapour etc. all directly emit, and do not carry out recyclingly well, have caused the significant wastage of the energy.
The utility model content
The purpose of this utility model provides a kind of circulating-water in thermal power plant refrigeration system, and this circulating-water in thermal power plant refrigeration system can improve the efficiency of energy utilization of steam power plant in summer.
To achieve these goals, the utility model provides a kind of circulating-water in thermal power plant refrigeration system, water supply main line and backwater main line that this circulating-water in thermal power plant refrigeration system comprises heating network, is connected with heating network respectively, wherein, described circulating-water in thermal power plant refrigeration system also comprises the second heat supply water branch road, the second backheat water branch road and the refrigeration machine that is used to freeze, the described second heat supply water branch road is connected between the feed water inlet of described water supply main line and described refrigeration machine, and the described second backheat water branch road is connected between the water return outlet and described backwater main line of described refrigeration machine.
Particularly, the circulating water temperature in the described water supply main line is 70～80 ℃, and the circulating water temperature in the described backwater main line is 50～55 ℃.
Further, described circulating-water in thermal power plant refrigeration system comprises air conditioner user, and the backwater of this air conditioner user flows to described refrigeration machine by the refrigeration supply channel, and the chilled water after described refrigeration machine refrigeration is supplied to described air conditioner user by cooling water pipeline.
Preferably, be serially connected with water supply pump on the described refrigeration supply channel.
Preferably, described circulating-water in thermal power plant refrigeration system also comprises the storage tank that is used for moisturizing, and this storage tank is other to be connected between described air conditioner user and the described water supply pump.
Preferably, described circulating-water in thermal power plant refrigeration system comprises the measurement mechanism that is used for gaging pressure and temperature.
Preferably, described heating network comprises steam turbine and condenser, described steam turbine is connected in the steam ports of going into of described condenser by the exhaust equipment of LP casing road, the recirculated water delivery port of described condenser is connected with described water supply main line, and described backwater main line is connected in the recirculated water water inlet of described condenser.
Preferably, described heating network also comprises heater, and this heater is serially connected on the described water supply main line.
Preferably, described heater is a vapor-water heat exchanger, and described steam turbine is connected in described heater by bleed steam pipework, and the steam pressure in the described bleed steam pipework is 0.3～0.8MPa.
Further, described heating network also comprises cooling tower, and this cooling tower is connected in the recirculated water water inlet of described condenser by the cooling tower supply channel, and is connected in the recirculated water delivery port of described condenser by the cooling tower water return pipeline.
Preferably, described heating network also comprises water replanishing device, and this water replanishing device side is connected on described backwater main line.
The utility model adopts the thermal source of circulating-water in thermal power plant to realize refrigeration, can be provided for the chilled water of air-conditioning in summer for the user, thereby improved the efficiency of energy utilization of steam power plant, effectively utilized the energy of the Low Temperature Steam of steam turbine, and need not to freeze by the electric power that steam power plant provides, reduced the waste of the energy.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with the following specific embodiment one, but does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of circulating-water in thermal power plant refrigeration system of the present utility model;
Fig. 2 is the structural representation of heating network of the present utility model.
Description of reference numerals
1 steam turbine, 2 condensers
3 heaters, 4 water replanishing devices
7 air conditioner users, 8 cooling towers
9 station boilers, 10 exhaust equipment of LP casing roads
10a bleed steam pipework 11 water supply main lines
12 backwater main lines, 17 second heat supply water branch roads
18 second backheat water branch roads, 23 refrigeration supply channels
24 cooling water pipelines, 38 refrigeration machines
39 water supply pumps, 40 storage tanks
41 measurement mechanisms, 81 cooling tower supply channels
82 cooling tower water return pipelines
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
In the utility model, term " first ", " second " etc. only are used to distinguish different parts, device or different pipelines, and are not used in and specifically limit each parts, device and pipeline.
Circulating-water in thermal power plant refrigeration system of the present utility model utilizes the recirculated water of heating network to freeze, and because of need not to freeze by the electric power that steam power plant provides, has reduced the waste of the energy.
Referring to Fig. 1, the circulating-water in thermal power plant refrigeration system can comprise the second heat supply water branch road 17, the second backheat water branch road 18 and the refrigeration machine 38 that is used to freeze, the second heat supply water branch road 17 is connected between the feed water inlet of water supply main line 11 and refrigeration machine 38, and the second backheat water branch road 18 is connected between the water return outlet and backwater main line 12 of refrigeration machine 38.Like this, can be used as the driving heat source of refrigeration machine 38 from the recirculated water of heating network.Wherein, described refrigeration machine 38 mainly is meant lithium bromide refrigerator, but is not limited to lithium bromide refrigerator.The refrigeration machine that every recirculated water that can utilize high temperature drives all can be applied in the utility model.Structure and refrigeration principle about lithium bromide refrigerator are known in those skilled in the art, repeat no more.
As seen from Figure 1, be serially connected with switch valve on the second heat supply water branch road 17, with when safeguarding, the recirculated water supply of the main line 11 that stops to supply water; The second backheat water branch road 18 is provided with flow control valve, with the flow of adjusting recirculated water, and then can control refrigeration.
Further, as shown in Figure 1, the circulating-water in thermal power plant refrigeration system comprises air conditioner user 7, and the backwater of this air conditioner user 7 flows to refrigeration machine 38 by refrigeration supply channel 23, and the chilled water after refrigeration machine 38 refrigeration is supplied to air conditioner user 7 by cooling water pipeline 24.Wherein, air conditioner user 7 is meant the user who is mounted with central air conditioner system or separate unit air-conditioning.
Concrete process of refrigerastion is: the feed water inlet that enters refrigeration machine 38 from the recirculated water (70～80 ℃) of water supply main line 11 via the second heat supply water branch road 17, to drive refrigeration machine 38 work, simultaneously, the cold water high relatively from the temperature (10～12 ℃) of air conditioner user 7 enters refrigeration machine 38 by refrigeration supply channel 23, and the chilled water that forms behind refrigeration machine 38 refrigerations (6～7 ℃) is supplied to air conditioner user 7 once more by cooling water pipeline 24.Simultaneously, flow back to backwater main line 12 by the second backheat water branch road 18, finish whole process of refrigerastion as the recirculated water of driving heat source.
As seen, can be provided for the chilled water of air-conditioning in summer for the user by the circulating-water in thermal power plant refrigeration system, thereby improved the efficiency of energy utilization of steam power plant, effectively utilized the energy of the Low Temperature Steam of steam turbine, and need not to freeze by the electric power that steam power plant provides, reduced the waste of the energy.
Preferably, in above-mentioned process of refrigerastion, in order to make the high relatively cold water of temperature in the refrigeration supply channel 23 have certain pressure and the easier refrigeration machine 38 that enters, can on refrigeration supply channel 23, be connected in series water supply pump 39, this water supply pump 39 preferably is arranged on the position near air conditioner user 7, delivers to refrigeration machine 38 with the water supply pump that temperature is high relatively.
And, under the situation of the backwater quantity not sufficient of air conditioner user 7, can also increase storage tank 40, and will storage tank 40 other being connected between air conditioner user 7 and the water supply pump 39, be used for replenishing the cooling water of air-conditioning system, satisfy the refrigeration requirement of refrigeration machine 38.
In whole circulating-water in thermal power plant refrigeration system, can be provided for the measurement mechanism 41 of gaging pressure and temperature in many places, this measurement mechanism 41 includes but not limited to Pressure gauge and thermometer etc.In the utility model, mainly measurement mechanism 41 is arranged on the second heat supply water branch road 17 and the second backheat water branch road 18.According to force value and the temperature value that measurement mechanism 41 records, can monitor whole system by the heat supply network monitoring system and whether move normally.Wherein, the heat supply network monitoring system can be a content known in those skilled in the art, is not elaborated at this.
Referring to Fig. 2, related heating network has multiple version in the utility model, so that 70～80 ℃ heat source water to be provided.In embodiment shown in Figure 2, heating network comprises steam turbine 1 and condenser 2, steam turbine 1 is gone into steam ports in practical operation by what exhaust equipment of LP casing road 10 was connected in condenser 2, steam turbine 1 direct UNICOM is in the steam ports of going into of condenser 2), offer condenser 2 with the low-pressure steam that will be not used in generating, condenser 2 will be from the steam condensation of steam turbine 1, and condensed condensate water recycles at power plant thermal system.
In the condensation process of above-mentioned condenser 2, use recirculated water as cooling medium, promptly be condensed in the process of condensate water at steam, recirculated water absorbs heat as cooling medium, thereby circulating water temperature is raise.Like this, the recirculated water delivery port of condenser 2 is connected with water supply main line 11, just can provide 70～80 ℃ heat source water, and backwater main line 12 is connected in the recirculated water water inlet of condenser 2, with the backwater in the backwater main line 12 once more as the cooling medium of condenser 2.
In the cyclic process of circulating-water in thermal power plant, the situation that the water yield reduces unavoidably can take place, thereby water replanishing device 4 can be set in heating network.As shown in Figure 2, water replanishing device 4 other being connected on the backwater main line 12.This water replanishing device 4 can be supported one hour moisturizing operation under the situation of big flood circular flow.
Preferably, heating network can also comprise heater 3 in the utility model, and this heater 3 is serially connected on the water supply main line 11, but the utility model is not limited thereto, and heater 3 also can be arranged on steam power plant.Wherein, heater 3 can be polytype heater, can be steam water heater, combustion heater, fuel heater or coal-fired heater etc. for example, but be not limited to above-mentioned heater types.
Preferably, above-mentioned heater 3 is a vapor-water heat exchanger, and like this, vapor-water heat exchanger can directly utilize drawing gas of steam turbine 1 to carry out heating operation, can further improve heating load.As shown in Figure 2, steam turbine 1 is connected in heater 3 by bleed steam pipework 10a.Wherein being provided with the vapor extractor (not shown) with the operation of drawing gas, is known in those skilled in the art about vapor extractor and the process of drawing gas, and does not repeat them here.In addition, the steam pressure among the bleed steam pipework 10a is 0.3～0.8MPa, to be applicable to the job requirement of vapor-water heat exchanger.In this vapor-water heat exchanger, the steam of steam turbine 1 with carry out heat exchange from recirculated water in the condenser 2, make recirculated water be heated, be condensed into water after the steam release heat simultaneously, the condensate water of vapor-water heat exchanger can have identical purposes with the condensate water of condenser 2.
In addition, identical with the electricity generation system of existing steam power plant, circulating-water in thermal power plant heating system of the present utility model also comprises cooling tower 8, this cooling tower 8 is connected in the recirculated water water inlet of condenser 2 by cooling tower supply channel 81, and is connected in the recirculated water delivery port of condenser 2 by cooling tower water return pipeline 82.The recirculated water of condenser 2 does not need to heat cold water or when being used to freeze, can provide cooling medium by cooling tower 8, to absorb in condenser 2 that steam is condensed into condensate water and the heat that discharges.Cooling tower 8 is as the reserved cooling system when the circulating-water in thermal power plant refrigeration system is not worked, to satisfy the needs of power plant's operation; Cooling tower 8 also can cooperate heating network to finish the needs that thermic load is adjusted simultaneously, and this part technology is known in those skilled in the art, does not repeat them here.
Below describe preferred implementation of the present utility model in conjunction with the accompanying drawings in detail; but; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove in addition, each concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up by any suitable manner, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.As long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (11)
1. circulating-water in thermal power plant refrigeration system, this circulating-water in thermal power plant refrigeration system comprises heating network, water supply main line (11) that is connected with heating network respectively and backwater main line (12), it is characterized in that, described circulating-water in thermal power plant refrigeration system also comprises the second heat supply water branch road (17), the second backheat water branch road (18) and the refrigeration machine (38) that is used to freeze, the described second heat supply water branch road (17) is connected between the feed water inlet of described water supply main line (11) and described refrigeration machine (38), and the described second backheat water branch road (18) is connected between the water return outlet and described backwater main line (12) of described refrigeration machine (38).
2. circulating-water in thermal power plant refrigeration system according to claim 1 is characterized in that, the circulating water temperature in the described water supply main line (11) is 70～80 ℃, and the circulating water temperature in the described backwater main line (12) is 50～55 ℃.
3. circulating-water in thermal power plant refrigeration system according to claim 2, it is characterized in that, described circulating-water in thermal power plant refrigeration system comprises air conditioner user (7), the backwater of this air conditioner user (7) flows to described refrigeration machine (38) by refrigeration supply channel (23), and the chilled water after described refrigeration machine (38) refrigeration is supplied to described air conditioner user (7) by cooling water pipeline (24).
4. circulating-water in thermal power plant refrigeration system according to claim 3 is characterized in that, is serially connected with water supply pump (39) on the described refrigeration supply channel (23).
5. circulating-water in thermal power plant refrigeration system according to claim 4, it is characterized in that, described circulating-water in thermal power plant refrigeration system also comprises the storage tank (40) that is used for moisturizing, and this storage tank (40) is other to be connected between described air conditioner user (7) and the described water supply pump (39).
6. circulating-water in thermal power plant refrigeration system according to claim 1 is characterized in that, described circulating-water in thermal power plant refrigeration system comprises the measurement mechanism (41) that is used for gaging pressure and temperature.
7. circulating-water in thermal power plant refrigeration system according to claim 1 and 2, it is characterized in that, described heating network comprises steam turbine (1) and condenser (2), described steam turbine (1) is connected in the steam ports of going into of described condenser (2) by exhaust equipment of LP casing road (10), the recirculated water delivery port of described condenser (2) is connected with described water supply main line (11), and described backwater main line (12) is connected in the recirculated water water inlet of described condenser (2).
8. circulating-water in thermal power plant refrigeration system according to claim 7 is characterized in that, described heating network also comprises heater (3), and this heater (3) is serially connected on the described water supply main line (11).
9. circulating-water in thermal power plant refrigeration system according to claim 8, it is characterized in that, described heater (3) is a vapor-water heat exchanger, described steam turbine (1) is connected in described heater (3) by bleed steam pipework (10a), and the steam pressure in the described bleed steam pipework (10a) is 0.3～0.8MPa.
10. circulating-water in thermal power plant refrigeration system according to claim 7, it is characterized in that, described heating network also comprises cooling tower (8), this cooling tower (8) is connected in the recirculated water water inlet of described condenser (2) by cooling tower supply channel (81), and is connected in the recirculated water delivery port of described condenser (2) by cooling tower water return pipeline (82).
11. circulating-water in thermal power plant refrigeration system according to claim 7 is characterized in that, described heating network also comprises water replanishing device (4), the other described backwater main line (12) that is connected on of this water replanishing device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102060 CN203083200U (en) | 2013-03-06 | 2013-03-06 | Circulating water refrigeration system in thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102060 CN203083200U (en) | 2013-03-06 | 2013-03-06 | Circulating water refrigeration system in thermal power plant |
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| CN203083200U true CN203083200U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320102060 Expired - Lifetime CN203083200U (en) | 2013-03-06 | 2013-03-06 | Circulating water refrigeration system in thermal power plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052174A (en) * | 2016-07-14 | 2016-10-26 | 中国电力工程顾问集团中南电力设计院有限公司 | Recycling device for thermal power station tail water and utilizing method |
| CN119617685A (en) * | 2024-12-13 | 2025-03-14 | 中国华能集团清洁能源技术研究院有限公司 | Heating system for heat and cold separation in thermal power plants |
-
2013
- 2013-03-06 CN CN 201320102060 patent/CN203083200U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052174A (en) * | 2016-07-14 | 2016-10-26 | 中国电力工程顾问集团中南电力设计院有限公司 | Recycling device for thermal power station tail water and utilizing method |
| CN106052174B (en) * | 2016-07-14 | 2018-09-25 | 中国电力工程顾问集团中南电力设计院有限公司 | A kind of thermal power station's tail water retracting device and utilize method |
| CN119617685A (en) * | 2024-12-13 | 2025-03-14 | 中国华能集团清洁能源技术研究院有限公司 | Heating system for heat and cold separation in thermal power plants |
| CN119617685B (en) * | 2024-12-13 | 2025-12-02 | 中国华能集团清洁能源技术研究院有限公司 | Heating systems for heat and cold separation in thermal power plants |
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Granted publication date: 20130724 |
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