CN210071451U - Pretreatment device for methane detector between gas turbine and turbine - Google Patents

Pretreatment device for methane detector between gas turbine and turbine Download PDF

Info

Publication number
CN210071451U
CN210071451U CN201920754784.5U CN201920754784U CN210071451U CN 210071451 U CN210071451 U CN 210071451U CN 201920754784 U CN201920754784 U CN 201920754784U CN 210071451 U CN210071451 U CN 210071451U
Authority
CN
China
Prior art keywords
phi
sampling
stainless steel
steel pipe
check
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
Application number
CN201920754784.5U
Other languages
Chinese (zh)
Inventor
季红波
李恒阳
薛立公
汤文军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Guoxin Huaian Second Gas Power Co Ltd
Original Assignee
Jiangsu Guoxin Huaian Second Gas Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Guoxin Huaian Second Gas Power Co Ltd filed Critical Jiangsu Guoxin Huaian Second Gas Power Co Ltd
Priority to CN201920754784.5U priority Critical patent/CN210071451U/en
Application granted granted Critical
Publication of CN210071451U publication Critical patent/CN210071451U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a methane detector preprocessing device between gas turbine belongs to gas power generation technical field. The outlet pipeline of the ventilating fan is connected with the phi 8 end of the sampling air inlet sleeve joint through a phi 8 stainless steel pipe; the phi 6 end of the sampling gas inlet sleeve joint is connected with a sampling pump through a phi 6 stainless steel pipe, and the sampling pump is connected with the right side of the sampling tee joint; meanwhile, the lower side of the sampling tee joint is connected with a bypass emptying valve through a phi 6 stainless steel pipe, and the bypass emptying valve is connected with a bypass interface through the phi 6 stainless steel pipe; the lower side of the check three-way valve is connected with a check interface through a phi 6 stainless steel pipe; the catalytic unit of the methane detector can be effectively protected, the stability of the detector is improved, and the service time of the catalytic unit is prolonged; the float flowmeter indicates when unifying the working state and the checking state, so that the checking accuracy is improved; a handheld standard calibrator can be used for comparison with an on-site methane detector; the monitoring work is convenient, and the stability of the unit is greatly improved.

Description

Pretreatment device for methane detector between gas turbine and turbine
Technical Field
The utility model relates to a methane detector preprocessing device between gas turbine belongs to gas power generation technical field.
Background
The methane detector is an important component of the gas generator set, and can prevent the gas generator set from major leakage and even explosion accidents. And is also one of the important protections of the gas generator set. Each power plant generally adopts two detection methods to detect the methane escape amount in the turbine housing. The first method is a direct measurement method, in which a plurality of detectors are distributed and installed above the turbine casing, and the counter-method can theoretically lock the escape position of methane, but due to the influence of airflow, the methane escape point cannot be quickly found in practical application. And because the temperature between turbines is high, the detector is easy to break down, thereby causing false operation and even refusing to operate. The second method is a drawing type measuring method, and a detector is arranged at the outlet of the ventilation fan. The method can quickly detect the methane escape, and the failure rate of the detector is low due to the good external environment of the turbine. However, the outlet of the ventilation fan sucks more dust, and the turbine high-temperature air is cooled to generate condensed water, so that the catalytic unit of the detector is easily polluted and aged.
And both methods have the problem of inconvenience in verification.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a simple structure, reasonable in design, convenient to use's methane detector preprocessing device between gas turbine.
In order to achieve the above object, the utility model adopts the following technical scheme: the system comprises a ventilation fan outlet pipeline, a sampling gas inlet joint, a sampling pump, a sampling tee joint, a bypass interface, a bypass emptying valve, a sampling stop valve, a universal dryer I, a universal dryer II, a check tee valve, a check interface, a filter, a float flowmeter and a methane detector; the outlet pipeline of the ventilating fan is connected with the phi 8 end of the sampling air inlet sleeve joint through a phi 8 stainless steel pipe; the phi 6 end of the sampling gas inlet sleeve joint is connected with a sampling pump through a phi 6 stainless steel pipe, and the sampling pump is connected with the right side of the sampling tee joint; meanwhile, the lower side of the sampling tee joint is connected with a bypass emptying valve through a phi 6 stainless steel pipe, and the bypass emptying valve is connected with a bypass interface through the phi 6 stainless steel pipe; the upper side (outlet) of the sampling tee joint is connected with a sampling stop valve through a phi 6 stainless steel pipe, the sampling stop valve is connected with a first universal dryer, the first universal dryer is connected with a second universal dryer, and the second universal dryer is connected with the upper side of a check tee valve; meanwhile, the lower side of the check three-way valve is connected with a check interface through a phi 6 stainless steel pipe; the right side (outlet) of the check three-way valve is connected with the filter through a phi 6 stainless steel pipe, the filter is connected with the float flowmeter through a phi 6 stainless steel pipe, and the float flowmeter is connected with the methane detector through a phi 6 stainless steel pipe.
The utility model discloses operating condition during the operation does, and the bypass blowoff valve is closed, the sample stop valve is opened, the check-up three-way valve switches to the sample side. The checking state is that the bypass emptying valve is closed, the sampling stop valve is closed, and the checking three-way valve is switched to the checking side. The comparison state is that the bypass emptying valve is opened, the sampling stop valve is opened, the check three-way valve is switched to the sampling side, and the emptying interface is connected with the handheld check meter.
After the structure is adopted, the utility model discloses beneficial effect does: the utility model discloses a gas turbine inter-turbine methane detector preprocessing device is modularized, can be manufactured in advance, and is convenient and quick to install on site; the device can effectively dehumidify, remove dust and oil from the sampled gas, effectively protect the catalytic unit of the methane detector, improve the stability of the detector and prolong the service time of the catalytic unit; the float flowmeter indicates when unifying the working state and the checking state, so that the checking accuracy is improved; a handheld standard calibrator can be used for comparison with an on-site methane detector; the monitoring work is convenient, and the stability of the unit is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of the mechanism of the present invention;
description of reference numerals:
the device comprises a ventilation fan outlet pipeline 1, a sampling gas inlet joint 2, a sampling pump 3, a sampling tee joint 4, a bypass interface 5, a bypass emptying valve 6, a sampling stop valve 7, a first universal dryer 9, a second universal dryer 10, a check three-way valve 11, a check interface 12, a filter 13, a float flowmeter 14 and a methane detector 15.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the system comprises a ventilation fan outlet pipeline 1, a sampling gas inlet joint 2, a sampling pump 3, a sampling tee joint 4, a bypass interface 5, a bypass emptying valve 6, a sampling stop valve 7, a first universal dryer 9, a second universal dryer 10, a check tee valve 11, a check interface 12, a filter 13, a float flowmeter 14 and a methane detector 15; the outlet pipeline 1 of the ventilating fan is connected with the phi 8 end of the sampling gas inlet sleeve joint 2 through a phi 8 stainless steel pipe; the phi 6 end of the sampling gas inlet casing joint 2 is connected with a sampling pump 3 through a phi 6 stainless steel pipe, and the sampling pump 3 is connected with the right side of a sampling tee joint 4; meanwhile, the lower side of the sampling tee joint 4 is connected with a bypass emptying valve 6 through a phi 6 stainless steel pipe, and the bypass emptying valve 6 is connected with a bypass interface 5 through a phi 6 stainless steel pipe; the upper side (outlet) of the sampling tee joint 4 is connected with a sampling stop valve 7 through a stainless steel pipe with the diameter of 6, the sampling stop valve 7 is connected with a first universal dryer 9, the first universal dryer 9 is connected with a second universal dryer 10, and the second universal dryer 10 is connected with the upper side of a check three-way valve 11; meanwhile, the lower side of the check three-way valve 11 is connected with a check interface 12 through a phi 6 stainless steel pipe; the right side (outlet) of the check three-way valve 11 is connected with a filter 13 through a phi 6 stainless steel pipe, the filter 13 is connected with a float flowmeter 14 through a phi 6 stainless steel pipe, and the float flowmeter 14 is connected with a methane detector 15 through a phi 6 stainless steel pipe.
The present embodiment is divided into three states, namely, a working state, a checking state, and a comparison state.
And in the working state, the bypass emptying valve 6 is closed, the sampling stop valve 7 is opened, and the check three-way valve 11 is switched to the sampling side.
And in the checking state, the bypass emptying valve 6 is closed, the sampling stop valve 7 is closed, and the checking three-way valve 11 is switched to the checking side.
When the state is compared, the bypass emptying valve 6 is opened, the sampling stop valve 7 is opened, the check three-way valve 11 is switched to the sampling side, and the emptying interface 5 is connected with the handheld check meter.
The utility model discloses a reform transform the upgrading to ordinary direct measurement formula alarm. The sampling pump 3 can be eliminated if it is directed to a suction alarm with a sampling pump.
The pretreatment device for the methane detector between the gas turbine and the turbine has the following beneficial effects:
1. the utility model discloses a modularization can make production in advance, and on-the-spot simple to operate is swift.
2. The utility model discloses can realize effectively removing moisture, removing dust, deoiling to the sample gas, can effectively protect methane detector catalysis unit, improve detector stability, extension catalysis unit live time.
3. The utility model discloses a check-up return circuit, check-up process convenient and fast.
4. The utility model discloses a float flowmeter, float flowmeter instructs through unified operating condition and check-up state time, improves the check-up accuracy.
5. The utility model discloses an evacuation bypass can use handheld standard check gauge to compare with on-the-spot methane detector. The supervision work is convenient.
6. The utility model provides high gas unit methane escape monitoring's accuracy, promptness have improved the unit stability greatly.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims (1)

1. The utility model provides a methane detector preprocessing device between combustion engine turbine which characterized in that: the system comprises a ventilation fan outlet pipeline, a sampling gas inlet joint, a sampling pump, a sampling tee joint, a bypass interface, a bypass emptying valve, a sampling stop valve, a universal dryer I, a universal dryer II, a check tee valve, a check interface, a filter, a float flowmeter and a methane detector; the outlet pipeline of the ventilating fan is connected with the phi 8 end of the sampling air inlet sleeve joint through a phi 8 stainless steel pipe; the phi 6 end of the sampling gas inlet sleeve joint is connected with a sampling pump through a phi 6 stainless steel pipe, and the sampling pump is connected with the right side of the sampling tee joint; meanwhile, the lower side of the sampling tee joint is connected with a bypass emptying valve through a phi 6 stainless steel pipe, and the bypass emptying valve is connected with a bypass interface through the phi 6 stainless steel pipe; the upper side of the sampling tee joint is connected with a sampling stop valve through a phi 6 stainless steel pipe, the sampling stop valve is connected with a first universal dryer, the first universal dryer is connected with a second universal dryer, and the second universal dryer is connected with the upper side of a check three-way valve; meanwhile, the lower side of the check three-way valve is connected with a check interface through a phi 6 stainless steel pipe; the right side of the check three-way valve is connected with a filter through a phi 6 stainless steel pipe, the filter is connected with a float flowmeter through a phi 6 stainless steel pipe, and the float flowmeter is connected with a methane detector through a phi 6 stainless steel pipe.
CN201920754784.5U 2019-05-23 2019-05-23 Pretreatment device for methane detector between gas turbine and turbine Active CN210071451U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920754784.5U CN210071451U (en) 2019-05-23 2019-05-23 Pretreatment device for methane detector between gas turbine and turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920754784.5U CN210071451U (en) 2019-05-23 2019-05-23 Pretreatment device for methane detector between gas turbine and turbine

Publications (1)

Publication Number Publication Date
CN210071451U true CN210071451U (en) 2020-02-14

Family

ID=69453973

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920754784.5U Active CN210071451U (en) 2019-05-23 2019-05-23 Pretreatment device for methane detector between gas turbine and turbine

Country Status (1)

Country Link
CN (1) CN210071451U (en)

Similar Documents

Publication Publication Date Title
PT1454058E (en) Method for monitoring a sensor
CN103016948B (en) The online leakage detection apparatus of Thermal Power Station's steam-water pipe drain valve
CN103557992A (en) Method for detecting inner leakage of steam hydrophobic valve based on valve front pipe wall temperature detection
CN210071451U (en) Pretreatment device for methane detector between gas turbine and turbine
WO2015120360A1 (en) Method for detecting hazardous gas concentrations within a gas turbine enclosure
CN103233505B (en) Draining anti-backflow system for pharmaceutical factory clean area equipment
CN102494247B (en) Gas leakage detection method based on voice frequency characteristic recognition
CN2733331Y (en) Boiler steam pipe state detection and leakage alarm device
CN206946680U (en) Active imflammable gas remote detection warning system
CN204479245U (en) A kind of H type low-level (stack-gas) economizer leak detecting device
CN204536317U (en) A kind of biomass gasification furnace gas humidity on-line measurement system
CN209927373U (en) Portable hydrogen leak detector
CN209229756U (en) It is a kind of to detect the safety device for improving heat accumulation type thermal oxidation furnace based on LEL
CN201149003Y (en) Axial flow fan surging protector
US9657639B2 (en) Ventilation system and method for monitoring air flow in a ventilation system for a turbomachine assembly
CN213180533U (en) Hydrogen leakage amount monitoring device
CN106527512B (en) A kind of control method of single-point monitoring gas concentration detector
CN103914063A (en) On-line performance diagnostic system and method for rotary air pre-heater
CN215333020U (en) Steam inlet system of double-pressure steam turbine for natural gas waste heat power generation
CN205229124U (en) System for be used for improving combustion engine hazardous gas detecting reliability
CN215492592U (en) Vacuum measurement sampling device of condenser
CN213423049U (en) Nitrogen oxide and oxygen analyzer probe
CN204666596U (en) The on-the-spot monitoring of hazardous gas device of CCPP combined cycle
CN215449081U (en) Condensed water detection device for steam pipeline
CN106053756B (en) A kind of control system for gas concentration detector

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant