CN207742519U - A kind of leading-type for thermal power plant's air preheater leaks out recovery control system - Google Patents
A kind of leading-type for thermal power plant's air preheater leaks out recovery control system Download PDFInfo
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- CN207742519U CN207742519U CN201721267793.9U CN201721267793U CN207742519U CN 207742519 U CN207742519 U CN 207742519U CN 201721267793 U CN201721267793 U CN 201721267793U CN 207742519 U CN207742519 U CN 207742519U
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- China
- Prior art keywords
- wind turbine
- air preheater
- flue gas
- air flue
- leading
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Abstract
It leaks out recovery control system the utility model is related to a kind of leading-type for thermal power plant's air preheater, including dredges wind turbine, frequency-conversion control cabinet, DCS automatic control systems, air preheater, temperature sensing assembly and pressure detecting assembly；Air preheater is connect by connecting line with wind turbine is dredged；Wind turbine is dredged by connecting line to be connected with second heat bellows；Temperature sensing assembly is arranged on dredging connecting line of the wind turbine with second heat bellows；And the temperature signal monitored in real time is sent to DCS automatic control systems；Pressure detecting assembly is arranged in air preheater and dredges the connecting line of wind turbine and dredge on the connecting lines of wind turbine and second heat bellows, and the pressure signal monitored in real time is sent to DCS automatic control systems；The DCS automatic control systems are connect by frequency-conversion control cabinet with air-blower control is dredged.It is operational safety, reliable and stable, easy to operate with simple structure and reasonable design, high degree of automation, the advantages that capable of effectively improving organic efficiency.
Description
Technical field
The utility model is related to thermal power plant's technical fields more particularly to a kind of leading-type for thermal power plant's air preheater to leak out
Recovery control system.
Background technology
China be power generation and consumption big country, annual electricity generating capacity occupy the world first three, and power industry production it is sustainable
Development and energy-saving promotion energetically propose higher requirement to economy of power plant, efficient operation.
Currently, most of the boiler in thermal power plant uses air preheater (abbreviation air preheater), this air preheater energy
Air needed for burning enough is heated using the heat of boiler tail flue gas, to improve the heat exchange of boiler efficiency.Common sky is pre-
Device has two kinds of a tubular type and swinging, no matter uses the air preheater of which kind of form, all have structure occupy little space, repair side
Just, it but can find that its air leak rate of air curtain inevitably exists in actual use.Those skilled in the art are also known, empty pre-
Device, which leaks out, many evils, such as increases the power consumption for sending air-introduced machine, while increasing heat loss due to exhaust gas, reduces boiler efficiency, sternly
Ghost image rings the operation of unit safety, economy, stabilization.Although there is many products for air preheater air leakage recycling in the prior art,
The various aspects such as protect to solve the above problems from structure, installation and operation, but in actual use it was found that,
Often there is the defects of structure is relative complex, high failure rate, and production and maintenance cost are higher, and the rate of recovery is not ideal enough.Thus, it carries
Go out it is a kind of can overcome drawbacks described above leak out retracting device have important research significance and realistic meaning.
Utility model content
Product above shortcomings, the purpose of this utility model are recycled for thermal power plant's air preheater air leakage in the prior art
It is：Body is leaked out recovery control system with a kind of leading-type for thermal power plant's air preheater, is closed with simple in structure, design
Reason, high degree of automation, operational safety, reliable and stable, easy to operate, the advantages that organic efficiency can be effectively improved.
In order to achieve the above object, the utility model adopts the following technical solution realizes：
A kind of leading-type for thermal power plant's air preheater leaks out recovery control system, the control system include dredge wind turbine,
Frequency-conversion control cabinet, DCS automatic control systems, air preheater, temperature sensing assembly and pressure detecting assembly；Wherein, air is pre-
Hot device is connect by connecting line with wind turbine is dredged；Wind turbine is dredged by connecting line to be connected with second heat bellows；Temperature is examined
Component is surveyed to be arranged on dredging connecting line of the wind turbine with second heat bellows；And the temperature signal monitored in real time is sent to DCS
Automatic control system；Pressure detecting assembly be arranged air preheater and dredge the connecting line of wind turbine and dredge wind turbine with
On the connecting line of second heat bellows, and the pressure signal monitored in real time is sent to DCS automatic control systems；The DCS is certainly
Autocontrol system is connect by frequency-conversion control cabinet with air-blower control is dredged；And by the temperature signal received, pressure signal through number
According to being compared respectively with preset temperature value, preset pressure value after conversion, wind turbine is dredged in control according to the result of the comparison
Operating frequency.
As advanced optimizing for said program, it is provided on the frequency-conversion control cabinet and dredges wind turbine emergency stop button.
As advanced optimizing for said program, the DCS automatic control systems are additionally provided with to be detected for displays temperature
The display of component and the real-time monitoring temperature of pressure detecting assembly and pressure, the display are computer operator station liquid crystal display
Device.
As advanced optimizing for said program, the DCS automatic control systems further include wireless receiving and dispatching controller, described
Wireless receiving and dispatching controller is connect by wireless network with remote monitoring center wireless telecommunications；The wireless network include 2G, 3G,
One kind in 4G, wifi.
As advanced optimizing for said program, the leading-type leak out recovery control system further include setting it is pre- in air
It hot device and dredges the connecting line of wind turbine and dredges the pipeline flow adjusting group on the connecting lines of wind turbine and second heat bellows
Part, the DCS automatic control systems are connected with pipeline flow adjusting part control；The pipeline flow adjusting part includes
Flow control valve.
As advanced optimizing for said program, the air preheater includes First air flue gas component and Secondary Air flue gas
Component, the First air flue gas component include First air flue gas hot junction fanning strip, First air flue gas cold end sector plate and First air
Flue gas axial sealing plate；The Secondary Air flue gas component includes Secondary Air flue gas hot junction fanning strip, Secondary Air flue gas cold end sector
Plate and Secondary Air flue gas axial sealing plate；The First air flue gas component and Secondary Air flue gas component respectively by connecting pipe with
Dredge air-blower control connection.
Recovery control system is leaked out with following beneficial effect for the leading-type of thermal power plant's air preheater using the utility model
Fruit：
(1) structure design is simple, reasonable, high degree of automation, and stabilization safe and reliable to operation.
(2) pressure and temperature in connecting pipe, energy are monitored in real time by means of pressure detecting assembly and temperature sensing assembly
The precise degrees of automation are enough effectively improved, while DCS automatic control systems can be believed according to the temperature and pressure monitored in real time
It number is compared with preset temperature value and preset pressure value after data conversion, the frequency of wind turbine is dredged by comparing adjustment
The flow of rate and pipeline flow valve.
(3) it is effectively helped operating personnel quickly to read the temperature and pressure of monitoring point by means of display equipment, improved
Operating efficiency.The wireless telecommunications that operation field and remote monitoring center can be realized by means of wireless transceiving component, are carried significantly
The high degree of automation
(4) it by means of the control of frequency-conversion control cabinet and DCS automatic control systems, is found by many experiments, under air leak rate of air curtain
At least 80% or more is dropped, effect is clearly.
Description of the drawings
Attached drawing 1 is that a kind of the leak out structure of recovery control system of leading-type for thermal power plant's air preheater of the utility model is shown
It is intended to.
Specific implementation mode
A kind of leading-type for thermal power plant's air preheater of 1 pair of the utility model leaks out recovery control system below in conjunction with the accompanying drawings
Mechanism and its application method be described in detail.
A kind of leading-type for thermal power plant's air preheater leaks out recovery control system, the control system include dredge wind turbine 1,
Frequency-conversion control cabinet 2, DCS automatic control systems 3, air preheater 4, temperature sensing assembly 5 and pressure detecting assembly 6；Wherein, empty
Air preheater is connect by connecting line with wind turbine is dredged；Wind turbine is dredged by connecting line to be connected with second heat bellows；Temperature
Degree detection components are arranged on dredging connecting line of the wind turbine with second heat bellows 7；And the temperature signal monitored in real time is sent
To DCS automatic control systems；Pressure detecting assembly is arranged in air preheater and the connecting line for dredging wind turbine and dredges
On the connecting line of wind turbine and second heat bellows, and the pressure signal monitored in real time is sent to DCS automatic control systems；It is described
DCS automatic control systems are connect by frequency-conversion control cabinet with air-blower control is dredged；And the temperature signal received, pressure are believed
It number is compared respectively with preset temperature value, preset pressure value after data conversion, control according to the result of the comparison is dredged
The operating frequency of wind turbine.It is provided on the frequency-conversion control cabinet and dredges wind turbine emergency stop button.The DCS automatic control systems
It is additionally provided with the display for displays temperature detection components and the real-time monitoring temperature of pressure detecting assembly and pressure, the display
Device is liquid crystal display.The DCS automatic control systems further include wireless receiving and dispatching controller, and the wireless receiving and dispatching controller passes through
Wireless network is connect with remote monitoring center wireless telecommunications；The wireless network includes one kind in 2G, 3G, 4G, wifi.It is described
The leading-type recovery control system that leaks out further includes being arranged in air preheater and dredging the connecting line of wind turbine and dredge wind turbine
With the pipeline flow adjusting part on the connecting line of second heat bellows, the DCS automatic control systems and the pipeline flow tune
Save component control connection；The pipeline flow adjusting part includes flow control valve.The air preheater includes a wind and smoke
Pneumatic module and Secondary Air flue gas component, the First air flue gas component include First air flue gas hot junction fanning strip 8, First air flue gas
Cold end sector plate 9 and First air flue gas axial sealing plate 10；The Secondary Air flue gas component includes Secondary Air flue gas hot junction sector
Plate 11, Secondary Air flue gas cold end sector plate 12 and Secondary Air flue gas axial sealing plate 13；The First air flue gas component and secondary
Wind and smoke pneumatic module is connect by connecting pipe with air-blower control is dredged respectively.
This reality can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
With novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and saying herein
Bright General Principle is applied in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to this
In embodiment, those skilled in the art's announcement according to the present utility model, do not depart from that the utility model scope made changes
Into and modification should all be within the protection scope of the utility model.
Claims (6)
- The recovery control system 1. a kind of leading-type for thermal power plant's air preheater leaks out, it is characterised in that：The control system includes Dredge wind turbine（1）, frequency-conversion control cabinet（2）, DCS automatic control systems（3）, air preheater（4）, temperature sensing assembly（5）With Pressure detecting assembly（6）；Wherein, air preheater is connect by connecting line with wind turbine is dredged；It dredges wind turbine and passes through connecting tube Road and second heat bellows（7）It is connected；Temperature sensing assembly is arranged on dredging connecting line of the wind turbine with second heat bellows；And The temperature signal monitored in real time is sent to DCS automatic control systems；Pressure detecting assembly setting air preheater with dredge It the connecting line of wind turbine and dredges on the connecting lines of wind turbine and second heat bellows, and the pressure signal monitored in real time is sent out It send to DCS automatic control systems；The DCS automatic control systems are connect by frequency-conversion control cabinet with air-blower control is dredged；And it will Temperature signal, the pressure signal received is compared with preset temperature value, preset pressure value respectively after data conversion, The operating frequency of wind turbine is dredged in control according to the result of the comparison.
- The recovery control system 2. a kind of leading-type for thermal power plant's air preheater according to claim 1 leaks out, feature It is：It is provided on the frequency-conversion control cabinet and dredges wind turbine emergency stop button.
- The recovery control system 3. a kind of leading-type for thermal power plant's air preheater according to claim 1 leaks out, feature It is：The DCS automatic control systems are additionally provided with monitors temperature in real time for displays temperature detection components and pressure detecting assembly The display of degree and pressure, the display are computer operator station liquid crystal display.
- The recovery control system 4. a kind of leading-type for thermal power plant's air preheater according to claim 1 leaks out, feature It is：The DCS automatic control systems further include wireless receiving and dispatching controller, the wireless receiving and dispatching controller by wireless network with Remote monitoring center wireless telecommunications connect；The wireless network includes one kind in 2G, 3G, 4G, wifi.
- The recovery control system 5. a kind of leading-type for thermal power plant's air preheater according to claim 1 leaks out, feature It is：The leading-type leak out recovery control system further include be arranged air preheater and dredge wind turbine connecting line, with And dredge pipeline flow adjusting part on the connecting lines of wind turbine and second heat bellows, the DCS automatic control systems with should The control connection of pipeline flow adjusting part；The pipeline flow adjusting part includes flow control valve.
- The recovery control system 6. a kind of leading-type for thermal power plant's air preheater according to claim 1 leaks out, feature It is：The air preheater includes First air flue gas component and Secondary Air flue gas component, and the First air flue gas component includes First air flue gas hot junction fanning strip（8）, First air flue gas cold end sector plate（9）With First air flue gas axial sealing plate（10）；Institute It includes Secondary Air flue gas hot junction fanning strip to state Secondary Air flue gas component（11）, Secondary Air flue gas cold end sector plate（12）And Secondary Air Flue gas axial sealing plate（13）；The First air flue gas component and Secondary Air flue gas component by connecting pipe and dredge wind respectively Machine control connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721267793.9U CN207742519U (en) | 2017-09-29 | 2017-09-29 | A kind of leading-type for thermal power plant's air preheater leaks out recovery control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721267793.9U CN207742519U (en) | 2017-09-29 | 2017-09-29 | A kind of leading-type for thermal power plant's air preheater leaks out recovery control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207742519U true CN207742519U (en) | 2018-08-17 |
Family
ID=63114088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721267793.9U Expired - Fee Related CN207742519U (en) | 2017-09-29 | 2017-09-29 | A kind of leading-type for thermal power plant's air preheater leaks out recovery control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207742519U (en) |
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2017
- 2017-09-29 CN CN201721267793.9U patent/CN207742519U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20190929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |