CN206449629U - A kind of heat recovery system of utilization demineralized water and condensate - Google Patents
A kind of heat recovery system of utilization demineralized water and condensate Download PDFInfo
- Publication number
- CN206449629U CN206449629U CN201621385263.XU CN201621385263U CN206449629U CN 206449629 U CN206449629 U CN 206449629U CN 201621385263 U CN201621385263 U CN 201621385263U CN 206449629 U CN206449629 U CN 206449629U
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- boiler
- condensate
- water
- oxygen
- eliminating device
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Abstract
The utility model provides the heat recovery system of a kind of utilization demineralized water and condensate, and the system includes lag cooler, oxygen-eliminating device, boiler, steam turbine, condenser, condensate pump and gland steam heater.The water inlet end of lag cooler is connected with desalination waterpipe and condensing water conduit by pipeline force (forcing) pump, and desalination waterpipe and condensing water conduit are respectively arranged with valve；Water side, oxygen-eliminating device, boiler, steam turbine, condenser, condensate pump and the gland steam heater of lag cooler are sequentially connected by pipeline, and boiler feed pump is connected between oxygen-eliminating device and boiler, the port of export of steam turbine is also outer to connect heat user, and the port of export of gland steam heater is also respectively connected with oxygen-eliminating device and condensing water conduit.The mixed temperature of water flow inside of desalination waterpipe and condensing water conduit is 30 45 DEG C, and the port of export water temperature of gland steam heater is no more than 80 DEG C.This practicality is suitable for use with the steam power plant of circulating fluidized bed boiler, carries out heat recovery to the deslagging of boiler, improves boiler thermal output.
Description
Technical field
The utility model is related to the recovery of heat after lag cooler deslagging, specifically a kind of to utilize demineralized water and condensate
Heat recovery system.
Background technology
The deslagging institute heat content of traditional steam power plant's circulating fluidized bed boiler lag cooler is not recycled, and directly discharges heat
Slag, not only causes thermal loss, and bring hidden danger to safe operation.The heat for absorbing deslagging using cooling water is avoided that this
Hidden danger.
The content of the invention
Technical assignment of the present utility model is that there is provided a kind of utilization demineralized water and condensate for solution the deficiencies in the prior art
Heat recovery system.
The utility model solves the technical scheme that its technical problem used：
A kind of heat recovery system of utilization demineralized water and condensate, the system includes lag cooler, oxygen-eliminating device, boiler, vapour
Turbine, condenser, condensate pump and gland steam heater.The water inlet end of lag cooler is connected with desalination waterpipe and condensing water conduit,
Desalination waterpipe and condensing water conduit are respectively arranged with valve；The water side of lag cooler, oxygen-eliminating device, boiler, steam turbine, condensing
Device, condensate pump and gland steam heater are sequentially connected by pipeline, and boiler feed pump, vapour are connected between oxygen-eliminating device and boiler
The port of export of turbine is also outer to connect heat user, and the port of export of gland steam heater is also respectively connected with oxygen-eliminating device and condensing water conduit.
On the basis of said structure, involved desalination waterpipe and condensing water conduit are connected to cold by pipeline force (forcing) pump
The water inlet end of slag machine.
On the basis of said structure, the mixed temperature of water flow inside of involved desalination waterpipe and condensing water conduit
For 30-45 DEG C.
On the basis of said structure, the port of export water temperature of involved gland steam heater is no more than 80 DEG C.
The heat recovery system of a kind of utilization demineralized water and condensate of the present utility model is produced compared with prior art
Beneficial effect be：
The utility model is simple in construction, reasonable in design, it is adaptable to using the steam power plant of circulating fluidized bed boiler, with demineralized water
With condensate as cooling water, the moisturizing to oxygen-eliminating device is made full use of, the deslagging through supercooling circulating fluidized bed boiler lag cooler,
The heat of slag is absorbed, boiler thermal output is improved, the heat-economy of power plant is improved.
Brief description of the drawings
Accompanying drawing 1 is structure flow chart of the present utility model.
Each label is represented in figure：
1st, desalination waterpipe, 2, condensing water conduit, 3, pipeline force (forcing) pump, 4, lag cooler,
5th, oxygen-eliminating device, 6, boiler feed pump, 7, boiler, 8, steam turbine, 9, heat user,
10th, condenser, 11, condensate pump, 12, gland steam heater.
Embodiment
Below in conjunction with the accompanying drawings 1, the heat recovery system of a kind of utilization demineralized water and condensate of the present utility model is made with
It is lower to describe in detail.
As shown in Figure 1, the heat recovery system of a kind of utilization demineralized water and condensate of the present utility model, the system bag
Include lag cooler 4, oxygen-eliminating device 5, boiler 7, steam turbine 8, condenser 10, condensate pump 11 and gland steam heater 12.Lag cooler 4 enters
Water end (W.E.) is connected with 2 points of desalination waterpipe 1 and condensing water conduit 2, desalination waterpipe 1 and condensing water conduit by pipeline force (forcing) pump 3
Valve is not provided with it；Water side, oxygen-eliminating device 5, boiler 7, steam turbine 8, condenser 10, condensate pump 11 and the packing of lag cooler 4
Heater 12 is sequentially connected by pipeline, and boiler feed pump 6, the outlet of steam turbine 8 are connected between oxygen-eliminating device 5 and boiler 7
End is also outer to connect heat user 9, and the port of export of gland steam heater 12 is also respectively connected with oxygen-eliminating device 5 and condensing water conduit 2.
The mixed temperature of water flow inside of desalination waterpipe 1 and condensing water conduit 2 is 30-45 DEG C.
The port of export water temperature of gland steam heater 12 is no more than 80 DEG C.
Specific workflow of the present utility model is illustrated with reference to accompanying drawing 1：By the demineralized water inside desalination waterpipe 1
Flowed into pipeline force (forcing) pump 3 pressurizes after the condensate mixing inside condensing water conduit 2 in lag cooler 4, cooling absorbs lag cooler 4
Heat, subsequently enter oxygen-eliminating device 5, through deoxygenation it is qualified after again through boiler feed pump 6 pressurization feeding boiler 7, absorb heat in boiler 7
Quantitative change is conveyed into steam turbine 8 into steam, and heat user 9 is supplied in the superheated steam for extracting 300 DEG C of a part out through the middle part of steam turbine 8,
Most of steam condenses into water through condenser 10, is heated again by gland steam heater 12 after the pressurization of condensation pump, is adjusted portion
Fractional condensation, which is born water, to be again introduced into condensing water conduit 2 and is recycled.It should be noted that when condensing water temperature is high, that is,
When condensing water temperature is more than 45 DEG C, all with desalination water cooling lag cooler 4；And when winter temperature is low, can be entirely with condensation water cooling
But lag cooler 4.The rated pressure of the pressure of pipeline force (forcing) pump 3 no more than lag cooler 4.
The utility model is suitable for use with the steam power plant of circulating fluidized bed boiler, and cooling is used as using demineralized water and condensate
Water, makes full use of the moisturizing to oxygen-eliminating device 5, the deslagging through lag cooler 4 in supercooling circulating fluidized bed boiler, absorbs the heat of slag
Amount, improves the thermal efficiency of boiler 7, improves the heat-economy of power plant.
In summary, above content is only protected to illustrate the technical solution of the utility model, rather than to the utility model
The limitation of scope, although the embodiment part is explained to the utility model, the ordinary skill of this area
Personnel should be appreciated that can modify or equivalent substitution to the technical solution of the utility model, new without departing from this practicality
The spirit and scope of type technical scheme.
Claims (4)
1. a kind of heat recovery system of utilization demineralized water and condensate, the system includes lag cooler, oxygen-eliminating device, boiler, steamer
Machine, condenser, condensate pump and gland steam heater, it is characterised in that the water inlet end of the lag cooler is connected with desalination waterpipe
And condensing water conduit, the desalination waterpipe and condensing water conduit are respectively arranged with valve；It is the water side of the lag cooler, described
Oxygen-eliminating device, the boiler, the steam turbine, the condenser, the condensate pump and the gland steam heater are suitable by pipeline
It is secondary to be connected, and boiler feed pump is connected between the oxygen-eliminating device and the boiler, the port of export of the steam turbine is also outer to connect heat
User, the port of export of the gland steam heater is also respectively connected with the oxygen-eliminating device and the condensing water conduit.
2. the heat recovery system of a kind of utilization demineralized water according to claim 1 and condensate, it is characterised in that described
Desalination waterpipe and condensing water conduit are connected to the water inlet end of lag cooler by pipeline force (forcing) pump.
3. the heat recovery system of a kind of utilization demineralized water according to claim 1 and condensate, it is characterised in that described
The mixed temperature of water flow inside of desalination waterpipe and condensing water conduit is 30-45 DEG C.
4. the heat recovery system of a kind of utilization demineralized water according to claim 3 and condensate, it is characterised in that described
The port of export water temperature of gland steam heater is no more than 80 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621385263.XU CN206449629U (en) | 2016-12-16 | 2016-12-16 | A kind of heat recovery system of utilization demineralized water and condensate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621385263.XU CN206449629U (en) | 2016-12-16 | 2016-12-16 | A kind of heat recovery system of utilization demineralized water and condensate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206449629U true CN206449629U (en) | 2017-08-29 |
Family
ID=59673203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621385263.XU Expired - Fee Related CN206449629U (en) | 2016-12-16 | 2016-12-16 | A kind of heat recovery system of utilization demineralized water and condensate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206449629U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824130A (en) * | 2019-03-01 | 2019-05-31 | 王瑾 | A kind of method that turbine lime set recycles in chemical plant installations compressor |
| CN114109532A (en) * | 2021-10-22 | 2022-03-01 | 中盐安徽红四方股份有限公司 | Steam seal cooling and recycling system of steam turbine |
-
2016
- 2016-12-16 CN CN201621385263.XU patent/CN206449629U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824130A (en) * | 2019-03-01 | 2019-05-31 | 王瑾 | A kind of method that turbine lime set recycles in chemical plant installations compressor |
| CN114109532A (en) * | 2021-10-22 | 2022-03-01 | 中盐安徽红四方股份有限公司 | Steam seal cooling and recycling system of steam turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170829 Termination date: 20181216 |