CN106595978A - Leak detection device and method - Google Patents
Leak detection device and method Download PDFInfo
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- CN106595978A CN106595978A CN201611046207.8A CN201611046207A CN106595978A CN 106595978 A CN106595978 A CN 106595978A CN 201611046207 A CN201611046207 A CN 201611046207A CN 106595978 A CN106595978 A CN 106595978A
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- conveyance conduit
- neon helium
- pressure
- heat exchanger
- mixed gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/186—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
Abstract
The invention discloses a leak detection device and method, and belongs to the technical field of sea water desalination. The leak detection device comprises a heat exchanger, which is connected with an exhausted steam transmission pipeline; a transmission pipeline, one end of which is communicated with the heat exchanger; an air compression mechanism, which is communicated with the other end of the transmission pipeline; a neon and helium conveying mechanism, which is communicated with the other end of the transmission pipeline; a heating steam generator, which is communicated with the heat exchanger; and neon and helium purity detectors, which are connected with measuring points of a steam turbine and an evaporator respectively. The leak detection device and method can be used for carrying out leak detection on a cogeneration device when vacuum environment of the cogeneration device cannot be established in the cogeneration device starting process, can judge leak positions quickly and fast, are low in cost, and ensure safety operation of the cogeneration device.
Description
Technical field
The present invention relates to field of sea water desalting technology, more particularly to a kind of leakage detection apparatus and method
Background technology
At present freshwater resources are day by day deficient, and it is a kind of that coastal industry enterprise produces water for industrial use using the mode of desalinization
The trend of exploitation unconventional water resource.Desalinization mainly divides full-boiled process, embrane method two ways, wherein, full-boiled process desalinization output
Water quality it is relatively higher, steam is the main power consumption medium of full-boiled process sea water desalinating unit.To reduce production cost, using generating
Device steam discharge carries out the water-electricity cogeneration device of desalinization becomes direction and the trend of following desalinization.But, due to " generating electricity
Device cylinder --- exhaust steam conveyance conduit --- seawater desalination evaporators " system is relative complex, and to reduce desalinization dress
Heat source stream demand temperature is put to reduce operating cost, takes low-temperature negative-pressure steam ambient to be changed in seawater desalination evaporators
Heat.Before sea water desalinating unit starts, need to set up vacuum environment, then " TRT cylinder --- exhaust steam delivery pipe
Road --- seawater desalination evaporators " are difficult to reach requirement if any small leak source, sea water desalinating unit vacuum, it is impossible to smoothly open
Car, but sea water desalinating unit leak source position can not be detected in prior art.
The content of the invention
The present invention provides a kind of leakage detection apparatus and method, solves or part solves water-electricity cogeneration device in prior art
If any small leak source, it is impossible to which the technology that detecting water-electricity cogeneration device leak source position causes sea water desalinating unit and can not smoothly open car is asked
Topic.
To solve above-mentioned technical problem, the invention provides a kind of leakage detection apparatus, are connected with water-electricity cogeneration device, the water
Thermoelectric coproduction device includes：Steam turbine, exhaust steam conveyance conduit and vaporizer；The leakage detection apparatus include：Heat exchanger, with the exhaust steam
Conveyance conduit is connected；Conveyance conduit, one end connects with the heat exchanger；Air compressing mechanism, with the conveyance conduit other end
Connection；Neon helium conveying mechanism, connects with the conveyance conduit other end；Plus hot steam generator, connect with the heat exchanger；Neon
Helium purity detecting instrument, is connected with the measuring point of the steam turbine and vaporizer；Wherein, the neon helium of the neon helium conveying mechanism conveying
The compressed air that body is conveyed with the air compressing mechanism enters the heat exchanger after the conveyance conduit forms mixed gas,
The mixed gas enter described weary in the heat exchanger with after the heating steam heat-exchanging of described plus hot steam generator conveying
Vapour conveyance conduit, the mixed gas enter the steam turbine and vaporizer by the exhaust steam conveyance conduit, and the neon helium is pure
Degree detector detects the neon helium content of the measuring point of the steam turbine and vaporizer.
Further, the air compressing mechanism includes：Air compressor, connects with the conveyance conduit other end；The
One pressure-measuring device, is arranged on the air compressor and the conveyance conduit connectivity part, for detecting the compressed air
Pressure.
Further, the neon helium conveying mechanism includes：Neon helium tank, connects with the conveyance conduit other end；Second
Pressure-measuring device, is arranged on the neon helium tank and the conveyance conduit connectivity part, for detecting the pressure of the neon helium gas.
Further, the pressure of the neon helium gas of the neon helium conveying mechanism conveying is conveyed higher than the air compressing mechanism
Compressed air pressure.
Further, the heat exchanger is provided with temperature monitor with the exhaust steam conveyance conduit connectivity part, for detecting
The temperature of the mixed gas；The heat exchanger is provided with the 3rd pressure-measuring device with the exhaust steam conveyance conduit connectivity part, uses
In the pressure for detecting the mixed gas.
Based on identical inventive concept, the present invention also provides a kind of leak hunting method, comprises the following steps：Neon helium conveying mechanism
The neon helium gas of conveying enter heat exchanger with the compressed air of air compressing mechanism conveying after conveyance conduit forms mixed gas；
By the mixed gas are in the heat exchanger and add after the heating steam heat-exchanging that hot steam generator is conveyed, exhaust steam is transported to defeated
Send pipeline；The mixed gas enter steam turbine and vaporizer, the detection of neon helium purity detecting instrument by the exhaust steam conveyance conduit
The neon helium content of the measuring point of the steam turbine and vaporizer；The neon in the mixed gas at the measuring point of the steam turbine
Helium content then shows the presence leak source at the steam turbine higher than neon helium content in air；At the measuring point of the vaporizer
Neon helium content in the mixed gas then shows the presence leak source at the vaporizer higher than neon helium content in air.
Further, the air compressing mechanism includes：Air compressor, connects with the conveyance conduit other end；The
One pressure-measuring device, is arranged on the air compressor and the conveyance conduit connectivity part, for detecting the compressed air
Pressure.
Further, the neon helium conveying mechanism includes：Neon helium tank, connects with the conveyance conduit other end；Second
Pressure-measuring device, is arranged on the neon helium tank and the conveyance conduit connectivity part, for detecting the pressure of the neon helium gas.
Further, the pressure of the neon helium gas of the neon helium conveying mechanism conveying is conveyed higher than the air compressing mechanism
Compressed air pressure.
Further, the heat exchanger is provided with temperature monitor with the exhaust steam conveyance conduit connectivity part, for detecting
The temperature of the mixed gas, the temperature of the mixed gas is less than the temperature that the vaporizer is required；The heat exchanger and institute
State exhaust steam conveyance conduit connectivity part and be provided with the 3rd pressure-measuring device, for detecting the pressure of the mixed gas, the mixing
The pressure of gas is less than the steam turbine required pressure.
The neon helium gas and air compressing mechanism of the neon helium conveying mechanism conveying of leakage detection apparatus and method that the present invention is provided
The compressed air of conveying enters heat exchanger after conveyance conduit forms mixed gas, and mixed gas are steamed in heat exchanger with heating
After the heating steam heat-exchanging of vapour generator conveying, exhaust steam conveyance conduit is transported to, mixed gas are entered by exhaust steam conveyance conduit
The neon helium content of the measuring point of steam turbine and vaporizer, neon helium purity detecting instrument detection steam turbine and vaporizer, when the survey of steam turbine
The neon helium content in mixed gas at point then shows the presence leak source at steam turbine higher than neon helium content in air, works as steaming
The neon helium content in the mixed gas at the measuring point of device is sent out higher than neon helium content in air, then shows the presence leakage at vaporizer
Point, during water-electricity cogeneration device opens car, when water-electricity cogeneration device vacuum environment cannot be set up, is carried out to water-electricity cogeneration device
Leak detection, can efficiently, quickly judge leak source position, low cost, it is ensured that the safe operation of water-electricity cogeneration device.
Description of the drawings
Fig. 1 is the structural representation of water-electricity cogeneration device provided in an embodiment of the present invention；
Fig. 2 is the structural representation of leakage detection apparatus provided in an embodiment of the present invention.
Specific embodiment
Referring to Fig. 1-2, a kind of leakage detection apparatus provided in an embodiment of the present invention are connected, the water power with water-electricity cogeneration device
Combined production device includes：Steam turbine 1, exhaust steam conveyance conduit 3 and vaporizer 2；The leakage detection apparatus include：Heat exchanger 5, conveyance conduit
6th, air compressing mechanism 7, neon helium conveying mechanism 8, plus hot steam generator 9 and neon helium purity detecting instrument 4.
The heat exchanger 5 is connected with the exhaust steam conveyance conduit 3.
The one end of the conveyance conduit 6 connects with the heat exchanger 5.
The air compressing mechanism 7 is connected with the other end of the conveyance conduit 6.
The neon helium conveying mechanism 8 is connected with the other end of the conveyance conduit 6.
Described plus hot steam generator 9 is connected with the heat exchanger 5.
The neon helium purity detecting instrument 4 is connected with the measuring point of the steam turbine 1 and vaporizer 2.
Wherein, the compressed air that the neon helium gas of the conveying of neon helium conveying mechanism 8 are conveyed with the air compressing mechanism 7
Enter the heat exchanger 5 after the conveyance conduit 6 forms mixed gas, the mixed gas are in the heat exchanger 5 and institute
State and enter after the heating steam heat-exchanging for adding the conveying of hot steam generator 9 the exhaust steam conveyance conduit 3, the mixed gas pass through institute
Exhaust steam conveyance conduit 3 is stated into the steam turbine 1 and vaporizer 2, the neon helium purity detecting instrument detects the steam turbine 1 and steams
Send out the neon helium content of the measuring point of device 2.
Technical solution of the present invention is by the neon helium gas of neon helium conveying mechanism conveying and the compression of air compressing mechanism conveying
Air conveyance conduit formed mixed gas after enter heat exchanger, by mixed gas in heat exchanger with add hot steam generator it is defeated
After the heating steam heat-exchanging for sending, exhaust steam conveyance conduit is transported to, mixed gas enter steam turbine and steaming by exhaust steam conveyance conduit
Send out the neon helium content of the measuring point of device, neon helium purity detecting instrument detection steam turbine and vaporizer, the mixing at the measuring point of steam turbine
Neon helium content in gas then shows the presence leak source at steam turbine, when the measuring point of vaporizer higher than neon helium content in air
Neon helium content in the mixed gas at place then shows the presence leak source at vaporizer, in water power higher than neon helium content in air
Combined production device is opened during car, when water-electricity cogeneration device vacuum environment cannot be set up, water-electricity cogeneration device is hunted leak, can be with
Efficiently, leak source position, low cost, it is ensured that the safe operation of water-electricity cogeneration device are quickly judged.
The structure of air compressing mechanism is discussed in detail.
The air compressing mechanism includes：Air compressor 7-1 and first pressure measuring instrument 7-2.
The air compressor 7-1 is connected with the other end of the conveyance conduit 6, delivers compressed air to the delivery pipe
In road 6.
The first pressure measuring instrument 7-2 is arranged on the air compressor 7-1 and the connectivity part of the conveyance conduit 6, uses
In the pressure for detecting the compressed air.
The structure of neon helium conveying mechanism is discussed in detail.
The neon helium conveying mechanism includes：Neon helium tank 8-1 and second pressure measuring instrument 8-2.
Neon helium tank 8-1 is connected with the other end of the conveyance conduit 6, and neon helium gas are transported in the conveyance conduit 6.
Second pressure measuring instrument 8-2 is arranged on the neon helium tank 8-1 and the connectivity part of the conveyance conduit 6, for detecting
The pressure of the neon helium gas.
Compression of the pressure of the neon helium gas of the conveying of neon helium conveying mechanism 8 higher than the conveying of the air compressing mechanism 7
The pressure of air, it is to avoid compressed air is entered in the neon helium tank 8-1, causes to pollute neon helium gas.
The structure of heat exchanger 5 is discussed in detail.
The heat exchanger 5 is provided with temperature monitor 10 with the connectivity part of exhaust steam conveyance conduit 3, described mixed for detecting
The temperature of gas is closed, the temperature of the mixed gas is less than the temperature that the vaporizer 1 is required, it is to avoid the vaporizer 1 is damaged.
The heat exchanger 5 is provided with the 3rd pressure-measuring device 11 with the connectivity part of exhaust steam conveyance conduit 3 to be used to detect institute
State the pressure of mixed gas, the pressure of the mixed gas is less than the required pressure of the steam turbine 2, it is to avoid the steamer its 2
It is impaired.
Based on identical inventive concept, the present invention also provides a kind of leak hunting method, comprises the following steps：
Step 1, the neon helium gas of the conveying of neon helium conveying mechanism 8 are with the compressed air of the conveying of air compressing mechanism 7 in conveying
Pipeline 6 is formed and enter after mixed gas heat exchanger 5.
Step 2, the mixed gas are changed in the heat exchanger 5 with add hot steam generator 9 to convey plus vapourss
After heat, exhaust steam conveyance conduit 6 is transported to.
Step 3, the mixed gas enter steam turbine 1 and vaporizer 2, neon helium purity by the exhaust steam conveyance conduit 3
Detector 4 detects the neon helium content of the measuring point of the steam turbine 1 and vaporizer 2.
Step 4, the neon helium content in the mixed gas at the measuring point of the steam turbine 1 is higher than neon helium in air
Content, then show the presence leak source at the steam turbine 1.
Step 5, the neon helium content in the mixed gas at the measuring point of the vaporizer 2 is higher than neon helium in air
Content, then show the presence leak source at the vaporizer 2.
The structure of air compressing mechanism is discussed in detail.
The air compressing mechanism includes：Air compressor 7-1 and first pressure measuring instrument 7-2.
The air compressor 7-1 is connected with the other end of the conveyance conduit 6, delivers compressed air to the delivery pipe
In road 6.
The first pressure measuring instrument 7-2 is arranged on the air compressor 7-1 and the connectivity part of the conveyance conduit 6, uses
In the pressure for detecting the compressed air.
The structure of neon helium conveying mechanism is discussed in detail.
The neon helium conveying mechanism includes：Neon helium tank 8-1 and second pressure measuring instrument 8-2.
Neon helium tank 8-1 is connected with the other end of the conveyance conduit 6, and neon helium gas are transported in the conveyance conduit 6.
Second pressure measuring instrument 8-2 is arranged on the neon helium tank 8-1 and the connectivity part of the conveyance conduit 6, for detecting
The pressure of the neon helium gas.
Compression of the pressure of the neon helium gas of the conveying of neon helium conveying mechanism 8 higher than the conveying of the air compressing mechanism 7
The pressure of air, it is to avoid compressed air is entered in the neon helium tank 8-1, causes to pollute neon helium gas.
The structure of heat exchanger 5 is discussed in detail.
The heat exchanger 5 is provided with temperature monitor 10 with the connectivity part of exhaust steam conveyance conduit 3, described mixed for detecting
The temperature of gas is closed, the temperature of the mixed gas is less than the temperature that the vaporizer 1 is required, it is to avoid the vaporizer 1 is damaged.
The heat exchanger 5 is provided with the 3rd pressure-measuring device 11 with the connectivity part of exhaust steam conveyance conduit 3 to be used to detect institute
State the pressure of mixed gas, the pressure of the mixed gas is less than the required pressure of the steam turbine 2, it is to avoid the steamer its 2
It is impaired.
The embodiment of the present invention is introduced in order to clearer, is introduced from the using method of the embodiment of the present invention below.
The valve arranged between neon helium tank 8-1 and conveyance conduit 6 is opened, neon helium gas are delivered to into conveyance conduit 6, beaten
The valve arranged between air compressor 7-1 and conveyance conduit 6 is opened, compressed air is delivered to into conveyance conduit 6.First pressure is surveyed
Amount instrument 7-2 is arranged on air compressor 7-1 and the connectivity part of conveyance conduit 6, and for detecting the pressure of compressed air, second pressure is surveyed
Amount instrument 8-2 is arranged on neon helium tank 8-1 and the connectivity part of conveyance conduit 6, for detecting the pressure of neon helium gas, due to neon helium gas
Relatively costly, the pressure of the neon helium gas of neon helium tank 8-1 conveyings is higher than the pressure of the compressed air of air compressor 7-1 conveyings
Power, it is to avoid compressed air is entered in the neon helium tank 8-1, causes to pollute neon helium gas.The neon helium of neon helium tank 8-1 conveyings
Body enters heat exchanger 5 with the compressed air of air compressor 7-1 conveyings after conveyance conduit 6 forms mixed gas.Due to neon helium
Gas is relatively costly, if all causing cost increase using neon helium gas, is mixed with neon helium gas using compressed air, can
With reduces cost.By mixed gas are in heat exchanger 5 and add after the heating steam heat-exchanging that hot steam generator 9 is conveyed, it is transported to
Exhaust steam conveyance conduit 6.The drain valve arranged between heat exchanger 5 and exhaust steam conveyance conduit 3 is opened, the mixed gas after heat exchange are entered
Exhaust steam conveyance conduit 3, mixed gas enter steam turbine 1 and vaporizer 2 by exhaust steam conveyance conduit 3, and neon helium purity detecting instrument 4 is examined
Survey the neon helium content of the measuring point of the steam turbine 1 and vaporizer 2.Open the valve arranged on heat exchanger 6, steam after heat exchange and
The hydrophobic outflow of exhaust steam conveyance conduit conveying.Heat exchanger 5 and the connectivity part of exhaust steam conveyance conduit 3 are provided with temperature monitor 10,
For detecting the temperature of mixed gas, the temperature of mixed gas is less than the temperature that vaporizer 1 is required, it is to avoid vaporizer 1 is damaged.Change
Hot device 5 is provided with the 3rd pressure-measuring device 11 with the connectivity part of exhaust steam conveyance conduit 3 to be used to detect the pressure of mixed gas, gaseous mixture
The pressure of body be less than the required pressure of steam turbine 2, it is to avoid steamer its 2 be damaged.In mixed gas at the measuring point of steam turbine 1
Neon helium content higher than neon helium content in air, then show the presence leak source at steam turbine 1.It is mixed at the measuring point of vaporizer 2
The neon helium content in gas is closed higher than neon helium content in air, then shows the presence leak source at vaporizer 2.In water-electricity cogeneration dress
Put and open during car, water-electricity cogeneration device vacuum environment cannot be set up, and water-electricity cogeneration device is hunted leak, can efficiently, soon
The judgement leak source position of speed, low cost, it is ensured that the safe operation of water-electricity cogeneration device.
It should be noted last that, above specific embodiment only to illustrate technical scheme and unrestricted,
Although being described in detail to the present invention with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention, it all should cover
In the middle of scope of the presently claimed invention.
Claims (10)
1. a kind of leakage detection apparatus, are connected with water-electricity cogeneration device, and the water-electricity cogeneration device includes：Steam turbine (1), exhaust steam conveying
Pipeline (3) and vaporizer (2)；Characterized in that, the leakage detection apparatus include：
Heat exchanger (5), connects with the exhaust steam conveyance conduit (3)；
Conveyance conduit (6), one end connects with the heat exchanger (5)；
Air compressing mechanism (7), connects with the conveyance conduit (6) other end；
Neon helium conveying mechanism (8), connects with the conveyance conduit (6) other end；
Plus hot steam generator (9), connect with the heat exchanger (5)；
Neon helium purity detecting instrument (4), is connected with the measuring point of the steam turbine (1) and vaporizer (2)；
Wherein, the compressed air that the neon helium gas of neon helium conveying mechanism (8) conveying are conveyed with the air compressing mechanism (7)
The heat exchanger (5) is entered after the conveyance conduit (6) forms mixed gas, the mixed gas are in the heat exchanger (5)
The exhaust steam conveyance conduit (3), the mixing are entered after the interior heating steam heat-exchanging with the conveying of described plus hot steam generator (9)
Gas is by the exhaust steam conveyance conduit (3) into the steam turbine (1) and vaporizer (2), the neon helium purity detecting instrument inspection
Survey the neon helium content of the measuring point of the steam turbine (1) and vaporizer (2).
2. leakage detection apparatus according to claim 1, it is characterised in that the air compressing mechanism includes：
Air compressor (7-1), connects with the conveyance conduit (6) other end；
First pressure measuring instrument (7-2), is arranged on the air compressor (7-1) and the conveyance conduit (6) connectivity part, is used for
Detect the pressure of the compressed air.
3. leakage detection apparatus according to claim 1, it is characterised in that the neon helium conveying mechanism includes：
Neon helium tank (8-1), connects with the conveyance conduit (6) other end；
Second pressure measuring instrument (8-2), is arranged on the neon helium tank (8-1) and the conveyance conduit (6) connectivity part, for examining
Survey the pressure of the neon helium gas.
4. leakage detection apparatus according to claim 1, it is characterised in that：
Compression of the pressure of the neon helium gas of neon helium conveying mechanism (8) conveying higher than the air compressing mechanism (7) conveying
The pressure of air.
5. leakage detection apparatus according to claim 1, it is characterised in that：
The heat exchanger (5) is provided with temperature monitor (10) with exhaust steam conveyance conduit (3) connectivity part, described for detecting
The temperature of mixed gas；
The heat exchanger (5) is provided with the 3rd pressure-measuring device (11) with exhaust steam conveyance conduit (3) connectivity part, for detecting
The pressure of the mixed gas.
6. a kind of leak hunting method, based on the leakage detection apparatus described in claim 1-5 any one, it is characterised in that including following
Step：
The compressed air that the neon helium gas of neon helium conveying mechanism (8) conveying are conveyed with air compressing mechanism (7) is in conveyance conduit (6)
Formed and enter after mixed gas heat exchanger (5)；
It is defeated by the mixed gas are in the heat exchanger (5) and add after the heating steam heat-exchanging that hot steam generator (9) is conveyed
It is sent to exhaust steam conveyance conduit (6)；
The mixed gas are by the exhaust steam conveyance conduit (3) into steam turbine (1) and vaporizer (2), neon helium purity detecting
Instrument (4) detects the neon helium content of the measuring point of the steam turbine (1) and vaporizer (2)；
The neon helium content in the mixed gas at the measuring point of the steam turbine (1) is higher than neon helium content in air, then
Show the presence leak source at the steam turbine (1) place；
The neon helium content in the mixed gas at the measuring point of the vaporizer (2) is higher than neon helium content in air, then
Show the presence leak source at the vaporizer (2) place.
7. leak hunting method according to claim 6, it is characterised in that the air compressing mechanism includes：
Air compressor (7-1), connects with the conveyance conduit (6) other end；
First pressure measuring instrument (7-2), is arranged on the air compressor (7-1) and the conveyance conduit (6) connectivity part, is used for
Detect the pressure of the compressed air.
8. leak hunting method according to claim 6, it is characterised in that the neon helium conveying mechanism includes：
Neon helium tank (8-1), connects with the conveyance conduit (6) other end；
Second pressure measuring instrument (8-2), is arranged on the neon helium tank (8-1) and the conveyance conduit (6) connectivity part, for examining
Survey the pressure of the neon helium gas.
9. leak hunting method according to claim 6, it is characterised in that：
Compression of the pressure of the neon helium gas of neon helium conveying mechanism (8) conveying higher than the air compressing mechanism (7) conveying
The pressure of air.
10. leak hunting method according to claim 6, it is characterised in that：
The heat exchanger (5) is provided with temperature monitor (10) with exhaust steam conveyance conduit (3) connectivity part, described for detecting
The temperature of mixed gas, the temperature of the mixed gas is less than the temperature that the vaporizer (1) is required；
The heat exchanger (5) is provided with the 3rd pressure-measuring device (11) with exhaust steam conveyance conduit (3) connectivity part, for detecting
The pressure of the mixed gas, the pressure of the mixed gas is less than the steam turbine (2) required pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046207.8A CN106595978B (en) | 2016-11-22 | 2016-11-22 | A kind of leakage detection apparatus and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046207.8A CN106595978B (en) | 2016-11-22 | 2016-11-22 | A kind of leakage detection apparatus and method |
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| CN106595978A true CN106595978A (en) | 2017-04-26 |
| CN106595978B CN106595978B (en) | 2019-02-01 |
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| CN107356375A (en) * | 2017-07-10 | 2017-11-17 | 丁梦琪 | A kind of leak detection system and method |
| CN110879122A (en) * | 2019-12-13 | 2020-03-13 | 西安飞机工业（集团）有限责任公司 | Device and method for detecting tightness of aircraft wing fuel tank |
| CN112504719A (en) * | 2020-12-28 | 2021-03-16 | 成都成发泰达航空科技有限公司 | Comprehensive detection system for aviation heat exchanger |
| CN114264425A (en) * | 2021-12-30 | 2022-04-01 | 福建中网电气有限公司 | Leakage detection method for pole-mounted circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN106595978B (en) | 2019-02-01 |
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