CN207962712U - Piping-main scheme heat medium water regulating system - Google Patents
Piping-main scheme heat medium water regulating system Download PDFInfo
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- CN207962712U CN207962712U CN201820389869.3U CN201820389869U CN207962712U CN 207962712 U CN207962712 U CN 207962712U CN 201820389869 U CN201820389869 U CN 201820389869U CN 207962712 U CN207962712 U CN 207962712U
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- heat medium
- low temperature
- medium water
- air heater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model is piping-main scheme heat medium water regulating system,It includes at least one heating agent shredded tobacco for water pipes coolers,Its water outlet connects high-temperature water main pipe after heating agent shredded tobacco for water pipes cooler adjusts valve group,High-temperature water main pipe is equipped with heat medium water steam heater,Heating agent shredded tobacco for water pipes cooler water inlet connects water at low temperature main pipe,The first water at low temperature branch pipe and the second water at low temperature branch pipe are connected in water at low temperature main pipe,Also include at least one First air heat medium water steam air heater and at least one Secondary Air heat medium water steam air heater,First air heat medium water steam air heater water inlet and Secondary Air heat medium water steam air heater water inlet are connect with high-temperature water main pipe,First air heat medium water steam air heater water outlet is connect with the first water at low temperature branch pipe,Secondary Air heat medium water steam air heater water outlet is connect with the second water at low temperature branch pipe,First,It is respectively equipped with corresponding return water on second water at low temperature branch pipe and adjusts valve group,The utility model not only has the characteristics that Bus pipe type system is simply easy to control,And simplified element system,Reduce equipment investment and operating cost.
Description
Technical field
The utility model belongs to energy-saving and emission-reduction field, is related to a kind of improved piping-main scheme heat medium water regulating system.
Background technology
Thermal power plant smoke waste heat utilization system is the important development direction of coal fired power plant energy-saving and emission-reduction.With in recent years
The continuous development of low temperature dedusting technology and machine stove coupled system, the energy-saving and emission-reduction benefit and warp that smoke waste heat utilization system is brought
Benefit of helping is more and more prominent, and a large amount of smoke exhaust heat is recovered by afterheat utilizing system into therrmodynamic system, and steam turbine is reduced
Heat consumption, effect of coal saving are apparent.However, smoke waste heat utilization system but becomes increasingly complex, equipment investment cost dramatically increases, system
Control strategy is cumbersome, and regulated variable is more, and if equipment or system design are unreasonable, fume afterheat utilizing status can have a greatly reduced quality, very
The operational safety of upstream device can extremely be influenced.Wherein, heat medium water regulating system is the core system that low-temperature flue gas waste heat utilizes, low
The heat of warm flue gas is transmitted to first and second cold wind by heating agent water system, realizes flue gas cascade utilization to the maximum extent.
There are two types of heat medium water regulating systems at present, and one is unit systems as shown in Figure 2, often cover system and correspond to respectively
The air and gas system of series, the heat of heating agent shredded tobacco for water pipes cooler are transmitted to the cold wind of respective series by the heating agent water system of this unit, and
The series First air and Secondary Air institute calorific requirement are matched by regulating valve, which invests greatly more, and adjusting valve group is more, adjusts
System complex.Another kind is Bus pipe type system as shown in Figure 1, the heats of two serial heating agent shredded tobacco for water pipes coolers converge after by one
The heat medium water of root main pipe is transmitted to two serial one, two cold wind.The system control equipment is few, no tune valve group, simple system, but nothing
Method can not adjust heating agent shredded tobacco for water pipes with boiler load and variation Rapid matching First air and Secondary Air the institute calorific requirement of coal
The outlet smoke temperature of cooler.
Utility model content
The technical issues of the utility model is solved is to provide a kind of piping-main scheme heat medium water regulating system.
Technological means used by the utility model is as follows.
A kind of piping-main scheme heat medium water regulating system, it includes at least one heating agent shredded tobacco for water pipes cooler, heating agent shredded tobacco for water pipes cooler water outlets
High-temperature water main pipe is connected, heating agent shredded tobacco for water pipes cooler is equipped with before junction and adjusts valve group, the high-temperature water main pipe is equipped with heating agent
Steam heating device；The heating agent shredded tobacco for water pipes cooler water inlet connects water at low temperature main pipe, and it is low to be connected with first in the water at low temperature main pipe
Warm water branch pipe and the second water at low temperature branch pipe；Also include at least one First air heat medium water steam air heater and at least one Secondary Air heat medium water
Steam air heater, the First air heat medium water steam air heater water inlet and Secondary Air heat medium water steam air heater water inlet connect with high-temperature water main pipe
It connecing, after heat medium water steam heater, First air heat medium water steam air heater water outlet is connect with the first water at low temperature branch pipe for junction,
Secondary Air heat medium water steam air heater water outlet is connect with the second water at low temperature branch pipe；The first water at low temperature branch pipe is equipped with a wind-heat
Matchmaker's water steam air heater return water adjusts valve group, and the second water at low temperature branch pipe is equipped with Secondary Air heat medium water steam air heater return water and adjusts valve group.
Recirculation circuit is set between the heat medium water steam heater outlet and water at low temperature main pipe.
Heat medium water recirculated water pump group and heat medium water are also set up before the junction of water at low temperature main pipe and heating agent shredded tobacco for water pipes cooler
Expansion tank, heat medium water expansion tank are arranged before heat medium water recirculated water pump group.
Compared to unit style heating agent water system, the utility model has the characteristics that and advantage：1. system is followed by simplifying
Ring water pump and adjusting valve group quantity are reduced, and equipment investment and operating cost lower；2. heating agent shredded tobacco for water pipes cooler exports high-temperature water and uses
The inlet water temperature of piping-main scheme, the cold First air heat medium water steam air heater and cold Secondary Air heat medium water steam air heater that can make boiler bilateral is protected
It holds unanimously, ensures that both sides air preheater import cold wind temperature does not generate deviation；3. heating agent shredded tobacco for water pipes cooler entrance water at low temperature uses main pipe
System ensures that the heating agent shredded tobacco for water pipes cooler inlet water temperature before deduster entrance is consistent, it is ensured that each heating agent shredded tobacco for water pipes cooler was consistent
Operating condition.
And relative to traditional piping-main scheme heating agent water system, the utility model is due in First air heat medium water steam air heater and two
Secondary wind-heat matchmaker water steam air heater outlet, which is provided with, adjusts valve group, can enter First air heating agent hot-water heating by adjusting in different operating conditions
The water of wind device and Secondary Air heat medium water steam air heater matches the heat needed for a cold wind and secondary cold wind, makes system adjustment more
Add flexibly, closer to design conditions.In addition, the utility model increases recirculation circuit, heating agent shredded tobacco for water pipes cooler can be made for water temperature
The adjusting of degree is more flexible.
Description of the drawings
Fig. 1 is traditional piping-main scheme heating agent water system figure.
Fig. 2 is that conventional elements heat matchmaker's water system figure.
Fig. 3 is piping-main scheme heating agent water system figure in the utility model.
Specific implementation mode
The utility model is a kind of improved piping-main scheme heat medium water regulating system, and it includes at least one heating agent shredded tobacco for water pipes coolers
1, it is carried out as described below with the embodiment shown in Fig. 3 for having 2 heating agent shredded tobacco for water pipes coolers.The water outlet of heating agent shredded tobacco for water pipes cooler 1 connects
High-temperature water main pipe 11 is connect, heating agent shredded tobacco for water pipes cooler is set on the pipeline before junction and adjusts valve group 8.It is set in high-temperature water main pipe 11
There is heat medium water steam heater 9.
The water inlet of heating agent shredded tobacco for water pipes cooler 1 is all connected with water at low temperature main pipe 12, and the first low temperature is connected in water at low temperature main pipe 12
Water branch pipe 13 and the second water at low temperature branch pipe 14.
Include also at least one First air heat medium water steam air heater 2 and at least one Secondary Air heat medium water steam air heater 3, with Fig. 3 institutes
For the 2 First air heat medium water steam air heaters 2 and Secondary Air heat medium water steam air heater 3 that show, but not limited to this.2 First airs
The water inlet of the water inlet of heat medium water steam air heater 2 and 2 Secondary Air heat medium water steam air heaters 3 is connect with high-temperature water main pipe 11,4
Junction may be contained within after heat medium water steam heater 9.The water outlet of 2 First air heat medium water steam air heaters 2 is low with first
Warm water branch pipe 13 connects, and the water outlet of 2 Secondary Air heat medium water steam air heaters 3 is connect with the second water at low temperature branch pipe 14.First
First air heat medium water steam air heater return water is set on water at low temperature branch pipe 13 and adjusts valve group 6, likewise, being set on the second water at low temperature branch pipe 14
It sets Secondary Air heat medium water steam air heater return water and adjusts valve group 7.
The heat medium water steam heater 9 of high-temperature water main pipe 11 is exported is arranged recirculation circuit 5 between water at low temperature main pipe 12.
Heat medium water recirculated water pump group 4 and heat are also set up before the junction of water at low temperature main pipe 12 and heating agent shredded tobacco for water pipes cooler 1
Matchmaker's water expansion tank 10, heat medium water expansion tank 10 are arranged before heat medium water recirculated water pump group 4.
When system operation, First air heat medium water steam air heater 2 and Secondary Air heat medium water steam air heater 3 are respectively from heating agent shredded tobacco for water pipes cooler
1 outlet high-temperature water main pipe 11 introduce the higher heat medium water of temperature, become after a cold wind and secondary cold front heavy rain temperature compared with
The low temperature heat medium water of low heat medium water, the outlet of every First air heat medium water steam air heater 2 passes through after the first water at low temperature branch pipe 13 converges
It crosses First air heat medium water steam air heater return water adjusting valve group 6 and enters water at low temperature main pipe 12, while every Secondary Air heat medium water steam air heater 3
The low temperature heat medium water of outlet after the second water at low temperature branch pipe 14 converges by Secondary Air heat medium water steam air heater return water adjust valve group 7 into
Enter water at low temperature main pipe 12, i.e., above-mentioned two-way low temperature heat medium water converges to water at low temperature main pipe 12, is carried by heat medium water recirculated water pump group 4
The water inlet of every heating agent shredded tobacco for water pipes cooler 1 is respectively connected to after boosting head.Every 1 water outlet of heating agent shredded tobacco for water pipes cooler passes through heating agent shredded tobacco for water pipes
Cooler converges after adjusting valve group 8 in high-temperature water main pipe 11, and First air/Secondary Air heating agent is accessed after heat medium water steam heater 9
Water steam air heater is thusly-formed enclosed heating agent water circulation system.When system needs, recirculation circuit 5 is from heat medium water steam heater 9
11 diversion of high-temperature water main pipe afterwards accesses the water at low temperature main pipe 12 before heating agent water-circulating pump group.Heat medium water expansion tank 10 goes out
In water at low temperature main pipe 12 before mouth of a river access heat medium water recirculated water pump group 4, play the role of level pressure.
Claims (3)
1. a kind of piping-main scheme heat medium water regulating system, which is characterized in that it includes at least one heating agent shredded tobacco for water pipes coolers（1）, heat medium water
Cigarette cooler（1）Water outlet connects high-temperature water main pipe（11）, heating agent shredded tobacco for water pipes cooler adjusting valve group is equipped with before junction（8）, institute
State high-temperature water main pipe（11）It is equipped with heat medium water steam heater（9）；
The heating agent shredded tobacco for water pipes cooler（1）Water inlet connects water at low temperature main pipe（12）, the water at low temperature main pipe（12）On be connected with first
Water at low temperature branch pipe（13）With the second water at low temperature branch pipe（14）；
It also include at least one First air heat medium water steam air heater（2）With at least one Secondary Air heat medium water steam air heater（3）, described primary
Wind-heat matchmaker's water steam air heater（2）Water inlet and Secondary Air heat medium water steam air heater（3）Water inlet with high-temperature water main pipe（11）Connection, even
It connects and is in heat medium water steam heater（9）Later, First air heat medium water steam air heater（2）Water outlet and the first water at low temperature branch pipe（13）
Connection, Secondary Air heat medium water steam air heater（3）Water outlet and the second water at low temperature branch pipe（14）Connection；
The first water at low temperature branch pipe（13）It is equipped with First air heat medium water steam air heater return water and adjusts valve group（6）, the second water at low temperature
Branch pipe（14）It is equipped with Secondary Air heat medium water steam air heater return water and adjusts valve group（7）.
2. piping-main scheme heat medium water regulating system as described in claim 1, which is characterized in that the heat medium water steam heater
（9）Outlet and water at low temperature main pipe（12）Between recirculation circuit is set（5）.
3. piping-main scheme heat medium water regulating system as described in claim 1, which is characterized in that in water at low temperature main pipe（12）With heating agent
Shredded tobacco for water pipes cooler（1）Junction before also set up heat medium water recirculated water pump group（4）With heat medium water expansion tank（10）, heat medium water is swollen
Swollen water tank（10）It is arranged in heat medium water recirculated water pump group（4）Before.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820389869.3U CN207962712U (en) | 2018-03-21 | 2018-03-21 | Piping-main scheme heat medium water regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820389869.3U CN207962712U (en) | 2018-03-21 | 2018-03-21 | Piping-main scheme heat medium water regulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207962712U true CN207962712U (en) | 2018-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820389869.3U Active CN207962712U (en) | 2018-03-21 | 2018-03-21 | Piping-main scheme heat medium water regulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207962712U (en) |
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2018
- 2018-03-21 CN CN201820389869.3U patent/CN207962712U/en active Active
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