CN205956002U - Power plant is water ring vacuum pump cooling system for condenser - Google Patents

Power plant is water ring vacuum pump cooling system for condenser Download PDF

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Publication number
CN205956002U
CN205956002U CN201620712012.1U CN201620712012U CN205956002U CN 205956002 U CN205956002 U CN 205956002U CN 201620712012 U CN201620712012 U CN 201620712012U CN 205956002 U CN205956002 U CN 205956002U
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China
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water
cooling
work
condenser
cooler
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CN201620712012.1U
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Chinese (zh)
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杨作梁
杨森
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State Grid Corp of China SGCC
Training Center of State Grid Jibei Electric Power Co Ltd
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State Grid Corp of China SGCC
Training Center of State Grid Jibei Electric Power Co Ltd
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Abstract

The utility model relates to a power plant is water ring vacuum pump cooling system for condenser, including water ring pump, deareator, work water chiller, the export of water ring pump passes through that the pipeline links to each other with deareator, the import of water ring pump is passed through the pipeline and is linked to each other with the condenser, and work water chiller's work water side -entrance passing through pipeline links to each other with deareator, work water chiller's export is respectively through the pipeline even at the inlet piping and the water ring pump pump body of water ring pump. Work water chiller's cooling water adopts the design of two water sources. The utility model provides a power plant is water ring vacuum pump cooling system for condenser non - summer operating mode cooling water source be the original design water source, operating mode cooling water source was for newly -increased water source summer, assign the groundwater that is used for the cooling tower makeup water as the coolant of water ring pump operating mode in summer work water, not only can effectively solve the problem of operating mode water ring pump working property deterioration in summer, and the cost is hanged down moreover, need not additionally to increase operating power consumption, and economic nature is good.

Description

A kind of plant condenser water-ring vacuum pump cooling system
Technical field
The utility model belongs to cooling device field, especially a kind of plant condenser water-ring vacuum pump cooling system System.
Background technology
In thermal power plant, condenser is the important auxiliary equipment of steam turbine.Condenser vacuum value is generating set weight Want one of technical parameter, the too low economy that not only can affect unit operation of vacuum values, or even its security can be affected.Condenser The height of vacuum values in running, in the case of other factorses are normal, depends primarily on the service behaviour of vavuum pump.
Water-ring vacuum pump (hereinafter referred to as " water ring pump ") is a kind of air-extractor of superior performance, have rate of air sucked in required big, Energy loss is little, carbonated drink medium-loss is few, safe and reliable, high degree of automation the advantages of, thus obtain in large-size thermal power plant Arrive extensive application.
The exhaust capacity of water ring pump is mainly affected by its work coolant-temperature gage.Because work water temperature is higher, saturated vapor pressure Higher, the absolute pressure in corresponding pump chamber is also higher, and the vacuum that can be extracted into is lower, and exhaust capacity is also lower.For this reason, Usually require that its work coolant-temperature gage is less than 25 DEG C, preferably do not surpass 15 DEG C.
In power plant, due to more than the working water of water ring pump using condenser recirculated cooling water as cooling medium, institute To have arrived summer condition, because environment temperature is generally higher, Inlet Temperature of Circulating Water is generally at 30 DEG C about, even as high as 33 DEG C And more than, lead to water ring pump cooling effect of cooler extreme difference, the heat producing along with pump spin friction, the temperature of working water is general All over superelevation, even up to 40 DEG C and more than, lead to the exhaust capacity degradation of water ring pump, condenser vacuum severe exacerbation.
In order to solve this problem, someone is cold as water ring pump working water by the use of 7 DEG C~20 DEG C chilled waters of central air-conditioning But medium.Although the method effect is pretty good, with the power consumption of central air-conditioning as cost, economy is very poor.
If using the underground water supplementing coolant medium consumption to condenser cooling tower, (water temperature is generally on 15 DEG C~17 DEG C left sides Right), as the cooling medium of water ring pump working water, disposably flow through water ring pump cooler, then " in passing " summer condition can be solved The problem that water ring pump service behaviour deteriorates, and economy connects.
Content of the invention
The purpose of this utility model is to overcome prior art not enough, provides a kind of energy effectively solving summer condition water ring pump Service behaviour deterioration problem, and the plant condenser of better economy water-ring vacuum pump cooling system.
The technical solution adopted in the utility model is:
A kind of plant condenser water-ring vacuum pump cooling system, including water ring pump, moisture trap, work water cooling Device, the outlet of water ring pump is connected with moisture trap by pipeline, the import of water ring pump is connected with condenser by pipeline, work The working water side-entrance of water cooler is connected with moisture trap by pipeline, pipeline is passed through in the outlet of the water cooler that works respectively It is connected in inlet pipeline and the water ring pump pump housing of water ring pump.The cooling water of work water cooler adopts double water source to design, i.e. working water The cooling water side of cooler is ined succession two cooling water source inlet channels and water return pipeline respectively:Wherein one road water source is work water-cooled But water-flow circuit realized by device and condenser, and another road water source is cooling water inlet pipe and the underground water pipe network of work water cooler It is connected by water inlet pipe, valve, the CWR of work water cooler and a cooling tower are provided with this water inlet pipe Connected by return pipe, valve is provided with this return pipe, is connected by pipeline between underground water pipe network and cooling tower, should The gate valve of one regulatory function is provided with pipeline.
And, being achieved in that of water-flow circuit realized by described work water cooler and condenser:Work water cooler Cooling water inlet pipe be connected with condenser recirculated cooling water water inlet pipe, in the work cooling water inlet pipe of water cooler and condensing Valve, the return pipe of work water cooler and condenser cooling water return pipe are installed between device recirculated cooling water water inlet pipe It is connected, between the return pipe and condenser cooling water return pipe of work water cooler, valve 6 is installed.
And, the water inlet pipe between the cooling water inlet pipe and underground water pipe network of work water cooler is provided with valve With on the return pipe between the work CWR of water cooler and cooling tower, valve is installed.
And, between the outlet of described work water cooler and the inlet pipeline of water ring pump, restricting orifice is installed.
The utility model advantage and good effect are:
The plant condenser that the utility model the provides cooling of the work water cooler of water-ring vacuum pump cooling system Water adopts double water source to design.Wherein, non-summer condition cooling water source is former design water source;Summer condition cooling water source is newly to surge Source, using the underground water for cooling tower raw make up water as the cooling medium of water ring pump summer condition working water, not only can effectively solve The problem that certainly summer condition water ring pump service behaviour deteriorates, and low cost, need not additionally increase operation energy consumption, good economy performance.
Brief description
Fig. 1 is pipeline structure connection diagram of the present utility model.
Specific embodiment
Below by accompanying drawing, the utility model is described in further detail in conjunction with specific embodiments, and following examples are to describe Property, it is not determinate it is impossible to protection domain of the present utility model is limited with this.
A kind of plant condenser water-ring vacuum pump cooling system, including water ring pump 1, moisture trap 2, work water-cooled But device 3, the outlet of water ring pump is connected with moisture trap by pipeline, the import of water ring pump is connected with condenser by pipeline, The working water side-entrance of work water cooler is connected with moisture trap by pipeline, the outlet of the water cooler that works is passed through respectively Pipeline is connected in inlet pipeline (being provided with restricting orifice 4 on pipeline) and the water ring pump pump housing of water ring pump.Work the cold of water cooler But water adopts double water source to design, that is, the cooling water side of the water cooler that works is ined succession two cooling water source inlet channels 12 respectively and returned Waterpipe 13:Wherein one road water source is the recirculated cooling water using condenser is cooling water source, and in non-summer condition, work water-cooled But the cooling water inlet pipe of device is connected with condenser recirculated cooling water water inlet pipe, work water cooler cooling water inlet pipe with Valve 5, the return pipe of work water cooler and condenser recirculated cooling water are installed between condenser recirculated cooling water water inlet pipe Return pipe is connected, and is provided with valve 6, thus between the return pipe and condenser cooling water return pipe of work water cooler Work water cooler realizes water-flow circuit with condenser;
Another road water source is to be cooling water source using underground water, in summer condition, the cooling water water inlet of the water cooler that works Pipe is crossed water inlet pipe 15 with foggara Netcom and is connected, and is provided with valve 7 and 9, the cooling of work water cooler on this water inlet pipe Water return pipe is connected by return pipe 16 with a cooling tower, is provided with valve 8 and 10, underground water pipe network on this return pipe 16 It is connected by pipeline between cooling tower, this pipeline is provided with the gate valve 11 of a regulatory function.
Above-mentioned valve 5~10 is common gate valve.
Operation principle of the present utility model is:
In non-summer condition, using condenser recirculated cooling water be work water cooler 3 cooling water source.Now, valve Door 5 and valve 6 standard-sized sheet, and valve 9, valve 7, valve 8 and valve 10 are fully closed, valve 11 standard-sized sheet, cooling tower can be using ground Table water (or underground water) is make-up water source, and valve 11 can need regulating pondage according to actual conditions;
In summer condition, the then cooling water source being work water cooler 3 using underground water.Now, valve valve 5 and valve 6 is fully closed, and valve 9, valve 7, valve 8 and valve 10 standard-sized sheet, and valve 11 is closed, and underground water is absorbed heat by work water cooler 3 After enter cooling tower moisturizing pipeline 14.
Because quality of groundwater is good compared with surface water, can be used as cooling medium typically without process and use.
Although disclosing embodiment of the present utility model and accompanying drawing for the purpose of illustration, those skilled in the art is permissible Understand:Without departing from the utility model and spirit and scope of the appended claims, various replacements, to change and modifications be all can Can, therefore, scope of the present utility model is not limited to embodiment and accompanying drawing disclosure of that.

Claims (4)

1. a kind of plant condenser water-ring vacuum pump cooling system, including water ring pump, moisture trap, work water cooling Device, the outlet of water ring pump is connected with moisture trap by pipeline, the import of water ring pump is connected with condenser by pipeline, work The working water side-entrance of water cooler is connected with moisture trap by pipeline, pipeline is passed through in the outlet of the water cooler that works respectively It is connected in inlet pipeline and the water ring pump pump housing of water ring pump, the cooling water of work water cooler adopts double water source to design, i.e. working water The cooling water side of cooler is ined succession two cooling water source inlet channels and water return pipeline respectively:Wherein one road water source is work water-cooled But water-flow circuit realized by device and condenser, and another road water source is cooling water inlet pipe and the underground water pipe network of work water cooler It is connected by water inlet pipe, valve, the CWR of work water cooler and a cooling tower are provided with this water inlet pipe Connected by return pipe, valve is provided with this return pipe, is connected by pipeline between underground water pipe network and cooling tower, should The gate valve of one regulatory function is provided with pipeline.
2. plant condenser according to claim 1 with water-ring vacuum pump cooling system it is characterised in that:Described work Being achieved in that of water-flow circuit realized by water cooler and condenser:The cooling water inlet pipe of work water cooler and condenser Recirculated cooling water water inlet pipe is connected, between the cooling water inlet pipe and condenser recirculated cooling water water inlet pipe of work water cooler Valve is installed, the return pipe of work water cooler is connected with condenser cooling water return pipe, in work water cooler Between return pipe and condenser cooling water return pipe, valve 6 is installed.
3. plant condenser according to claim 1 with water-ring vacuum pump cooling system it is characterised in that:In working water Be provided with water inlet pipe between the cooling water inlet pipe of cooler and underground water pipe network valve and, work water cooler cold But on the return pipe between water return pipe and cooling tower, valve is installed.
4. plant condenser according to claim 1 with water-ring vacuum pump cooling system it is characterised in that:In described work Make to be provided with restricting orifice between the outlet of water cooler and the inlet pipeline of water ring pump.
CN201620712012.1U 2016-07-07 2016-07-07 Power plant is water ring vacuum pump cooling system for condenser Active CN205956002U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620712012.1U CN205956002U (en) 2016-07-07 2016-07-07 Power plant is water ring vacuum pump cooling system for condenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620712012.1U CN205956002U (en) 2016-07-07 2016-07-07 Power plant is water ring vacuum pump cooling system for condenser

Publications (1)

Publication Number Publication Date
CN205956002U true CN205956002U (en) 2017-02-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111828322A (en) * 2020-06-29 2020-10-27 武汉助力节能环保技术服务有限公司 Vacuumizing device for steam turbine condenser
CN111852870A (en) * 2020-05-06 2020-10-30 中国电力工程顾问集团中南电力设计院有限公司 Coal-fired power plant vacuum pump multistage cooling water system and cooling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111852870A (en) * 2020-05-06 2020-10-30 中国电力工程顾问集团中南电力设计院有限公司 Coal-fired power plant vacuum pump multistage cooling water system and cooling method
CN111828322A (en) * 2020-06-29 2020-10-27 武汉助力节能环保技术服务有限公司 Vacuumizing device for steam turbine condenser

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