CN206724998U - A kind of heat recovery heat exchanger work condition inspection system - Google Patents
A kind of heat recovery heat exchanger work condition inspection system Download PDFInfo
- Publication number
- CN206724998U CN206724998U CN201621495914.0U CN201621495914U CN206724998U CN 206724998 U CN206724998 U CN 206724998U CN 201621495914 U CN201621495914 U CN 201621495914U CN 206724998 U CN206724998 U CN 206724998U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- low
- pressure heater
- inspection system
- work condition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
A kind of heat recovery heat exchanger work condition inspection system, heat exchanger is provided with flue, the first low-pressure heater is connected the second low-pressure heater；The inlet and outlet of first low-pressure heater is connected to heat exchanger import after merging by pipeline；Heat exchanger entrance is provided with three-temperature sensor；Heat exchanger exit is connected to the import of the second low-pressure heater by pipeline；Dew point transducer is provided with front side of flue entrance heat exchanger；Humidity sensor is provided with rear side of flue outlet heat exchanger；The duty parameter and leak case of heat recovery heat exchanger can effectively, be timely detected, ensures the safe operation of unit, is very suitable for practicality.
Description
Technical field
The utility model belongs to electric power energy-saving field of Environment Protection, more particularly to a kind of heat recovery heat exchanger work condition inspection system
System.
Background technology
In fields such as electric power, metallurgy, chemical industry, building materials, the flue-gas temperature of discharge is all higher, so causes a part of heat
Amount loss.Heat loss due to exhaust gas is maximum in station boiler various heat losses one.Typically, big-and-middle-sized station boiler is normally being transported
During row, heat loss due to exhaust gas accounts for the 4%~8% of boiler oil input heat；And exhaust gas temperature often reduces by 15 DEG C~25 DEG C, so that it may
To improve boiler efficiency 1% or so.With deepening continuously for China's energy conservation, and coal price rises steadily at present,
People increasingly pay attention to due to high fume temperature and caused by energy waste problem, a small amount of power plant has begun to attempt to utilize flue gas
Waste-heat recovery device, makes the flue-gas temperature of discharge reduce by 20 DEG C~50 DEG C again, and achieves first-stage success.In addition, utilize flue gas
Waste-heat recovery device further reduces exhaust gas temperature, the efficiency of dust collection of deduster can also be improved while energy-conservation, so as to reach
To the purpose of energy-conserving and environment-protective.
Heat exchanger is the capital equipment that flue gas waste heat recovery apparatus realizes waste heat recovery, and it arrangement and sets in flue
Seated position is usually to be determined according to the layout at scene.Heat exchanger is arranged in flue, realizes flue gas and from the low condensation added
Heat exchange between water.Normal Gas Parameters are not influenceed, it is necessary to the working parameters for monitoring heat exchanger in order to ensure.Simultaneously because
Heat recovery heat exchanger is arranged in flue, if leaking, can influence the safe operation of whole unit, therefore find in time
Leakage, adopts an effective measure be even more important for heat recovery heat exchanger as early as possible.Therefore, the heat exchanger needs arranged in flue
Overall monitor is carried out to it, ensures that the safe operation of unit, equipment extend the life-span, improves heat exchange operating efficiency.
Utility model content
The purpose of this utility model is, there is provided a kind of heat recovery heat exchanger work condition inspection system of new structure, institute
Technical problems to be solved are can effectively, timely to detect the duty parameter of heat recovery heat exchanger, ensure unit
Safe operation, be very suitable for practicality.
The purpose of this utility model and to solve its technical problem realized using following technical scheme.
A kind of heat recovery heat exchanger work condition inspection system, heat exchanger, the series connection of the first low-pressure heater are provided with flue
Second low-pressure heater；Characterized in that, the inlet and outlet of the first low-pressure heater is connected to heat exchange after merging by pipeline
Device import；Heat exchanger entrance is provided with three-temperature sensor；Heat exchanger exit is connected to the second low-pressure heater by pipeline
Import；Dew point transducer is provided with front side of flue entrance heat exchanger；Humidity sensor is provided with rear side of flue outlet heat exchanger.
Further, the first electric control valve is provided with the export pipeline of the first low-pressure heater, is added in the first low pressure
The inlet ductwork of hot device is provided with the second electric control valve.
Further, the first temperature sensor is additionally provided with the export pipeline of the first low-pressure heater, in the first low pressure
Second temperature sensor is additionally provided with the inlet ductwork of heater.
Further, the 4th temperature sensor is provided with heat exchanger exit.
Further, arranged between the outlet of the first low-pressure heater and the second low-pressure heater import by first, second, third
The bypass changeover unit of stop valve and the 3rd electric control valve composition.
Further, second, third stop valve and the 3rd electric control valve form the outlet of the first low-pressure heater and second
Regulation bypass between low-pressure heater import；First stop valve is located at the outlet of the first low-pressure heater and the second low-pressure heater enters
On straight-through pipeline between mouthful.
Further, it is provided with the 5th temperature sensor on front side of flue entrance heat exchanger；Set on rear side of flue outlet heat exchanger
It is equipped with the 6th temperature sensor.
Further, humidity sensor, three-temperature sensor are connected with DCS system, and the smoke moisture detected is believed
Number and heat exchanger water inlet water temperature signal be transferred to the DCS system.
The utility model has clear advantage and beneficial effect compared with prior art.By above-mentioned technical proposal, sheet
A kind of heat recovery heat exchanger work condition inspection system of utility model at least has following advantages and beneficial effect：The utility model profit
Detected with temperature, humidity, dew point transducer using multidraw, accuracy in detection is high, can effectively and rapidly detect waste heat
The operating mode situation of heat exchanger is reclaimed, ensures the safe operation of unit；It is simultaneously of the present utility model to operate steadily, be safe, it is applicable model
Enclose extensively, be particularly suitable for use in heater heated by waste heat.
Brief description of the drawings
Fig. 1 is heat recovery heat exchanger work condition inspection system diagram.
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose of utility model taken,
Below in conjunction with accompanying drawing and preferred embodiment, to according to the utility model proposes a kind of heat recovery heat exchanger leak detection apparatus
Its
Embodiment, structure, feature and its effect, describe in detail as after.
Relevant of the present utility model foregoing and other technology contents, feature and effect, it is following coordinate with reference to schema compared with
Can clearly it be presented in the detailed description of good embodiment., should can be to the utility model by the explanation of embodiment
For reach technological means that predetermined purpose taken and effect obtain one more deeply and it is specific understand, but institute's accompanying drawings are only
It is to provide reference and purposes of discussion, is not used for being any limitation as the utility model.
Refer to shown in Fig. 1, be a kind of schematic diagram of heat recovery heat exchanger work condition inspection system of the utility model.This reality
With new heat recovery heat exchanger work condition inspection system, mainly include, heat exchanger is provided with flue；First low-pressure heater
Inlet and outlet merged by pipeline after be connected to heat exchanger import, the first temperature sensor and the are provided with export pipeline
One electric control valve, second temperature sensor and the second electric control valve are provided with inlet ductwork, by adjusting first respectively
The aperture of electric control valve and the second electric control valve, the water temperature of heat exchanger can be adjusted into, be provided with heat exchanger entrance
Three-temperature sensor；Heat exchanger exit is connected to the import of the second low-pressure heater by pipeline, is set at heat exchanger exit
There is the 4th temperature sensor；First low-pressure heater exports to be arranged by first, second, third between the second low-pressure heater import
The bypass changeover unit of stop valve and the 3rd electric control valve composition, second, third stop valve and the 3rd electric control valve composition
First low-pressure heater exports the regulation bypass between the second low-pressure heater import, adjustable to flow to the second low-pressure heater
Water；First stop valve is located on the straight-through pipeline between the outlet of the first low-pressure heater and the second low-pressure heater import first section
When only valve is opened, the outlet of the first low-pressure heater and the second low-pressure heater import can be led directly to；Set on front side of flue entrance heat exchanger
The 5th temperature sensor and dew point transducer are equipped with, for sensing inlet flue gas temperature and dew point；Set on rear side of flue outlet heat exchanger
There are the 6th temperature sensor and humidity sensor, the gentle humidity of cigarette is exported for sensing.
Heat exchanger can be monitored by humidity to reveal, and set heat exchanger entrance automatically by humidity detection corresponding to the 3rd
The control numerical value of temperature sensor, and and then adjust the aperture of each regulating valve and carry out temperature control.
The dew point that the utility model passes through the flue gas before and after the windward side of heat recovery heat exchanger 1 and by the measurement heat exchange of wind side
And humidity, the leak case of heat recovery heat exchanger 1 can be fast and effectively detected, and humidity detection is applied to exchange
Hot device regulating working conditions control, extends the heat exchanger life-span, improves heat exchange efficiency.
The lee face of the probe tube of humidity sensor is provided with three aspirating holes, by multidraw, further to protect
Demonstrate,prove the degree of accuracy of the whole device when detecting heat recovery heat exchanger leakage.
Because the temperature of flue gas in flue is higher, the high Temperature Humidity Sensor selected by the utility model is all high temperature resistant
, to ensure its operating efficiency.Special small-power aspiration pump can be selected, to extract the flue gas of low discharge from flue, is protected
The flow of card sampling flue gas is in the range of safety operation of high Temperature Humidity Sensor, it is ensured that whole heat recovery heat exchanger leakage inspection
Survey the safety, economy, Effec-tive Function of device.And the not only degree of accuracy is measured to the humidity of flue gas using high Temperature Humidity Sensor
Height, high temperature resistant, absolute humidity can be calculated, and can continuously monitored on-line, can be more connected with DCS system, will detected
Smoke moisture signal be transmitted directly to DCS system.In a preferred embodiment of the present utility model, exchanged heat positioned at waste heat recovery
The dew point and humidity sensor of device both sides can first pass the signal to again to concentrate signal after control cabinet to be sent to DCS systems
System, while control cabinet can also provide power supply and control signal for humidity sensor and aspiration pump.
The utility model is according to the difference of heat recovery heat exchanger set location, it is also contemplated that is evacuated in humidity sensor
At hole install additional a dust screen membrane, with ensure heat recovery heat exchanger leak detection apparatus under clean environment at a high speed, have
The operation of effect.
The utility model can also distinguish the multiple probe tubes of setting side by side in the flue of heat recovery heat exchanger, and
One aspiration pump is set in one end of each probe tube, between the aspirating hole and corresponding aspiration pump of each probe tube
One high Temperature Humidity Sensor is all set.
When aspiration pump is opened, the flue gas in flue is entered in probe tube by aspirating hole, flows through high Temperature Humidity Sensor, by
High Temperature Humidity Sensor makes sensing, the humidity of accurate measurement tested segment flue gas, and the cigarette that will can be detected to the humidity of flue gas
Gas moisture signal is transferred to DCS system.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, although the utility model is disclosed above with preferred embodiment, but be not limited to the utility model, it is any ripe
Know professional and technical personnel do not departing from the range of technical solutions of the utility model, when the technology contents using the disclosure above
Make a little change or be modified to the equivalent embodiment of equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still
Belong in the range of technical solutions of the utility model.
Claims (8)
1. a kind of heat recovery heat exchanger work condition inspection system, heat exchanger, the first low-pressure heater series connection the are provided with flue
Two low-pressure heaters；Characterized in that, the inlet and outlet of the first low-pressure heater is connected to heat exchanger after merging by pipeline
Import；Heat exchanger entrance is provided with three-temperature sensor；Heat exchanger exit is connected to the second low-pressure heater by pipeline
Import；Dew point transducer is provided with front side of flue entrance heat exchanger；Humidity sensor is provided with rear side of flue outlet heat exchanger.
2. heat recovery heat exchanger work condition inspection system according to claim 1, it is characterised in that in the first low-pressure heating
The export pipeline of device is provided with the first electric control valve, and the second motorized adjustment is provided with the inlet ductwork of the first low-pressure heater
Valve.
3. heat recovery heat exchanger work condition inspection system according to claim 2, it is characterised in that in the first low-pressure heating
The first temperature sensor is additionally provided with the export pipeline of device, second temperature is additionally provided with the inlet ductwork of the first low-pressure heater
Sensor.
4. heat recovery heat exchanger work condition inspection system according to claim 1, it is characterised in that at heat exchanger exit
Provided with the 4th temperature sensor.
5. heat recovery heat exchanger work condition inspection system according to claim 1, it is characterised in that the first low-pressure heater
The side being made up of first, second, third stop valve and the 3rd electric control valve is arranged between outlet and the second low-pressure heater import
Road switch unit.
6. heat recovery heat exchanger work condition inspection system according to claim 5, it is characterised in that second, third cut-off
Valve and the 3rd electric control valve form the regulation bypass between the outlet of the first low-pressure heater and the second low-pressure heater import；First
Stop valve is located on the straight-through pipeline between the outlet of the first low-pressure heater and the second low-pressure heater import.
7. heat recovery heat exchanger work condition inspection system according to claim 1, it is characterised in that flue entrance heat exchanger
Front side is provided with the 5th temperature sensor；The 6th temperature sensor is provided with rear side of flue outlet heat exchanger.
8. heat recovery heat exchanger work condition inspection system according to claim 1, it is characterised in that humidity sensor,
Three-temperature sensor is connected with DCS system, and the smoke moisture signal and heat exchanger that detect water inlet water temperature signal are transferred into institute
State DCS system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621495914.0U CN206724998U (en) | 2016-12-29 | 2016-12-29 | A kind of heat recovery heat exchanger work condition inspection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621495914.0U CN206724998U (en) | 2016-12-29 | 2016-12-29 | A kind of heat recovery heat exchanger work condition inspection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206724998U true CN206724998U (en) | 2017-12-08 |
Family
ID=60499258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621495914.0U Active CN206724998U (en) | 2016-12-29 | 2016-12-29 | A kind of heat recovery heat exchanger work condition inspection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206724998U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692592A (en) * | 2018-05-17 | 2018-10-23 | 上海电力学院 | Using the tube-plate type heat-exchanger of foam copper product |
| CN108871712A (en) * | 2018-07-02 | 2018-11-23 | 杭州宜清自动化控制技术有限公司 | A kind of method and apparatus of the economizer leakage diagnosis based on TDLAS |
-
2016
- 2016-12-29 CN CN201621495914.0U patent/CN206724998U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692592A (en) * | 2018-05-17 | 2018-10-23 | 上海电力学院 | Using the tube-plate type heat-exchanger of foam copper product |
| CN108871712A (en) * | 2018-07-02 | 2018-11-23 | 杭州宜清自动化控制技术有限公司 | A kind of method and apparatus of the economizer leakage diagnosis based on TDLAS |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205384207U (en) | High sensitivity particulate matter laser monitor based on dilution method | |
| CN206847688U (en) | A kind of oil smoke on-line monitoring instrument based on laser scattering method | |
| CN109737898B (en) | System for realizing online test of high-temperature corrosion of water-cooled wall | |
| CN107036070A (en) | A kind of boiler leakage detects warning device | |
| CN206724998U (en) | A kind of heat recovery heat exchanger work condition inspection system | |
| CN207007527U (en) | A kind of condenser | |
| CN107966419A (en) | The on-line measurement device of absolute humidity of gas in flue gas or pipeline gas | |
| CN103383296A (en) | Leakage detecting system for condensers | |
| WO2012129749A1 (en) | Air volume calculation system for variable speed or constant speed fan | |
| CN110398399A (en) | A kind of fume extraction analytical equipment and boiler thorax combustion monitoring system | |
| CN203053778U (en) | Device for detecting leakage of waste heat recovery heat exchanger | |
| CN107063734A (en) | A kind of condenser, condenser monitoring system, condenser power consumption analysis method | |
| CN206161502U (en) | Low temperature corrosion detecting system | |
| CN205751541U (en) | A kind of main steam line leakage monitoring system of nuclear power station | |
| CN108509717B (en) | Energy-saving accounting system and method for recycling flue gas waste heat | |
| CN208222865U (en) | Gas-fired water heating boiler thermal efficiency real-time monitoring and remote transmitting system | |
| CN208310858U (en) | Turbine medium-low pressure communication pipe heating system | |
| CN216847724U (en) | Gas sensing module and environmental air quality monitoring micro station | |
| CN203216732U (en) | Thermal efficiency real-time monitoring system of condensing gas-fired boiler | |
| CN206626970U (en) | A kind of aluminum melting furnace high-precision furnace pressure measurement and control device | |
| CN105987789A (en) | Leak detection device for waste heat recovery heat exchanger | |
| CN207366229U (en) | Grain drying energy efficiency evaluation system | |
| CN206531174U (en) | Fresh air handling units exchange heat and winterization system | |
| CN107677138A (en) | A kind of the Detection ＆ Controling method and air leak detection systems of air leakage | |
| CN206272751U (en) | Image acquiring device in a kind of integrated furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |