WO2021232673A1 - 气体压力保护装置 - Google Patents

气体压力保护装置 Download PDF

Info

Publication number
WO2021232673A1
WO2021232673A1 PCT/CN2020/123507 CN2020123507W WO2021232673A1 WO 2021232673 A1 WO2021232673 A1 WO 2021232673A1 CN 2020123507 W CN2020123507 W CN 2020123507W WO 2021232673 A1 WO2021232673 A1 WO 2021232673A1
Authority
WO
WIPO (PCT)
Prior art keywords
water level
pressure
level adjustment
pipe
protection device
Prior art date
Application number
PCT/CN2020/123507
Other languages
English (en)
French (fr)
Inventor
俞发强
张名捷
胡金磊
邹祁武
赵耀鹏
阮伟聪
任万鑫
杨函煜
孔华东
黎灿兵
Original Assignee
广东电网有限责任公司清远供电局
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 广东电网有限责任公司清远供电局 filed Critical 广东电网有限责任公司清远供电局
Publication of WO2021232673A1 publication Critical patent/WO2021232673A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M1/00—Apparatus for enzymology or microbiology
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L43/00—Bends; Siphons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product

Definitions

  • This application relates to the technical field of anaerobic treatment, for example, to a gas pressure protection device.
  • the biogas fermentation process needs to be strictly sealed to ensure an anaerobic environment, and the biogas pressure in the biogas fermentation device changes dynamically with the biogas utilization process.
  • the biogas pressure directly affects the safety of the biogas fermentation device, so the reliability and data accuracy of the biogas safety pressure control are highly required.
  • the air inlet of the water-sealed pressure relief tank is connected to a pressure limiting pipe, and the pressure limiting pipe is inserted into a certain depth of water, and the water will be connected to the pressure limiting pipe in the air inlet pipe
  • the gas is isolated from the atmosphere, and the sealing effect is tight.
  • the height of the overflow port and the bottom end of the pressure limiting pipe is fixed, which makes the upper limit of the pressure unable to be adjusted.
  • the application provides a gas pressure protection device, which can realize the adjustment of the upper limit of the gas storage pressure.
  • An embodiment provides a gas pressure protection device, including:
  • a tank body the tank body is provided with a liquid, the tank body is provided with an air inlet and an air outlet, the air inlet is connected with a pressure limiting tube, and the air outlet end of the pressure limiting tube extends into the tank body
  • a water level adjustment assembly the water level adjustment assembly includes a water level adjustment tube, the upper end surface of the water level adjustment tube is adjustable in height, and the lower end surface of the water level adjustment tube extends out of the tank body.
  • it further includes a communicating body, the communicating body is arranged on one side of the tank body and is in communication with the liquid in the tank body, and the upper end surface of the water level adjusting pipe is arranged in the communicating body.
  • the water level adjustment assembly further includes an adjustment and fastening assembly, and an external thread is provided on the water level adjustment tube, and the external thread is used to adjust the height of the upper end surface of the water level adjustment tube.
  • the component is used to fix the water level adjustment pipe.
  • the water level adjustment assembly further includes a seal, and the seal is disposed between the communicating body and the water level adjustment pipe to seal the water level adjustment pipe and the communicating body.
  • the gas pressure protection device further includes a communication hole for connecting the tank body and the communication body.
  • At least two of the communication holes are arranged at intervals along the height direction of the tank body.
  • the communication hole located at the lowest position is provided with an interval distance from the bottom of the communication body.
  • the diameter of the communicating hole is 6-10 mm.
  • the communicating body has an open structure.
  • an observation window is further provided on the tank body, the observation window is arranged opposite to the communicating body, and the bottom of the observation window is lower than the air outlet end of the pressure limiting tube.
  • a liquid is arranged in a tank, a pressure limiting tube is connected to the air inlet, and the gas outlet end of the pressure limiting tube extends into the liquid in the tank.
  • the gas in the pressure limiting tube is isolated from the atmosphere with the liquid in the tank, and the sealing effect is good.
  • the water level adjustment assembly includes a water level adjustment pipe.
  • the height difference between the upper end surface of the water level adjustment pipe and the air outlet end of the pressure limiting pipe is controlled, so that the height of the water level in the tank and the water level are adjusted
  • the height of the upper end surface of the pipe is the same, so as to control the water penetration depth of the pressure limiting pipe.
  • the water pressure corresponding to the water inlet depth of the pressure limiting pipe is the upper limit of the gas pressure, so as to realize the adjustment of the upper limit of the gas storage pressure.
  • the water level adjustment tube is set as a threaded tube, and the height of the threaded tube is fixed by one rotation.
  • the water depth of the pressure limiting tube can be precisely controlled by the number of rotations of the threaded tube, thereby increasing the upper pressure limit The control accuracy.
  • the tank body and the connecting body are connected in sections through small diameter connecting holes with height differences, which can effectively avoid pressure relief and discharge.
  • the gas When the gas is in the air, the gas agitates the water surface to fluctuate and overflows to reduce the water volume.
  • the arrangement of the water level adjusting pipe and the communicating hole with height difference effectively avoids the problem of the upper limit change of the gas storage pressure caused by various disturbances, ensures the constant threshold of the upper pressure limit, and improves the safety of the equipment.
  • the gas pressure protection device provided by the present application has the connecting body in an open structure, which is convenient for natural rainwater to supplement the lack of water in the tank, and is also conducive to water level observation and manual water replenishment operations. It has a certain degree of self-adjustment function, which simplifies Manual intervention operation.
  • FIG. 1 is a schematic diagram of the structure of a gas pressure protection device provided by Embodiment 1 of the present application.
  • Tank body 2. Connecting body; 3. Water level adjusting component; 4. Pressure limiting pipe; 5. Water level; 6. Connecting hole; 7. Observation window; 8. Base; 9. Drain pipe;
  • the terms “installation”, “connected”, “connected” and “fixed” should be interpreted broadly. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or a It can be an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be a communication between two components or an interaction relationship between two components.
  • installation can be a fixed connection or a detachable connection; it can be a mechanical connection or a It can be an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be a communication between two components or an interaction relationship between two components.
  • the first feature “on” or “under” the second feature may include the first feature and the second feature in direct contact, or the first feature and the second feature are not in direct contact But through the contact of other features between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • biogas safety pressure protection devices mainly include breathing valves, solenoid valves, and water-sealed pressure relief tanks.
  • the breathing valve is a mechanical device that uses a fixed counterweight and an adjustable spring to control the gas pressure.
  • the pressure valve flap opens and the gas is discharged. Due to the variable spring fatigue coefficient, the precision of the breathing valve is not high, and the sealing contact surface is in an active state, which is easy to be contaminated with dust and affect the sealing effect.
  • the solenoid valve When the solenoid valve is used as a pressure relief device, there is no defect of low accuracy due to the pressure detection device, but because the sealing contact surface is in an active state, it is easy to be contaminated with dust and affect the sealing effect; and when the solenoid valve is used as a pressure relief device, The selected normally closed valve has the risk that it cannot be opened when the power grid is cut off or the circuit protection trips.
  • biogas Since biogas is highly corrosive and explosive, it has corrosive effects on the metal parts of the above two types of valve devices.
  • biogas safety pressure protection device When used as a biogas safety pressure protection device, its reliability and safety are not as good as water-sealed pressure relief tanks.
  • the upper limit of the pressure of the water-sealed pressure relief tank in the related technology cannot be adjusted; and the evaporation loss of the water in the tank within a certain period of time and the increase of the condensation of the water vapor contained in the biogas in the tank cause the fluctuation of the water volume and cause the upper limit of the gas storage pressure. fluctuation.
  • this embodiment provides a gas pressure protection device, including a tank body 1 and a water level adjustment assembly 3.
  • the tank body 1 is provided with liquid, and the tank body is provided with an air inlet 11 and an air outlet 12.
  • the air inlet 11 is connected with a pressure limiting pipe 4, and the air outlet end of the pressure limiting pipe 4 extends into the liquid in the tank 1.
  • the water level adjustment assembly 3 includes a water level adjustment tube 31, the upper end surface of the water level adjustment tube 31 is adjustable in height, and the lower end surface of the water level adjustment tube 31 extends out of the tank 1.
  • a liquid is arranged in the tank 1, a pressure limiting tube 4 is connected to the air inlet, and the gas outlet end of the pressure limiting tube 4 extends into the liquid in the tank 1.
  • the gas in the pressure limiting tube 4 is isolated from the atmosphere by the liquid in the tank 1, and the sealing effect is good.
  • the water level adjustment assembly 3 includes a water level adjustment pipe 31.
  • the height difference between the upper end surface of the water level adjustment pipe 31 and the air outlet end of the pressure limiting pipe 4 is controlled, so that the tank body 1
  • the height of the internal water level 5 is consistent with the height of the upper end surface of the water level adjustment tube 31, and then the water inlet depth of the pressure limiting tube 4 is controlled.
  • the water pressure corresponding to the water inlet depth of the pressure limiting tube 4 is the upper limit of the gas pressure. Adjustment of upper pressure limit. With the gas pressure protection device provided in this application, the upper limit of the gas storage pressure is easy to adjust.
  • the pressure limiting tube 4 and the water level adjusting tube 31 are straight pipes, the air inlet 11 and the air outlet 12 are both arranged at the top of the tank 1, and one end of the pressure limiting tube 4 is welded to the air inlet 11. The other end extends into the liquid in the tank 1, and the height difference between the horizontal plane of the pressure limiting tube 4 and the inner wall of the bottom of the tank 1 is h, so that the gas entering the tank 1 enters the liquid through the pressure limiting tube 4 After being neutralized and overcome the liquid pressure, it enters the gas phase space on the upper part of the tank body 1, so the external air and biogas can be separated. In the process, there are potential safety hazards that are flammable and explosive.
  • the air inlet 11 may also be arranged at the middle or lower end of the tank body 1, and it is only necessary to ensure that the air outlet end of the pressure limiting tube 4 is in the liquid to isolate the external air from the biogas.
  • the pressure limiting tube 4 is arranged as an L-shaped tube or a tube with other shapes, and the air outlet end of the L-shaped tube can be upward or downward.
  • the water level adjustment tube 31 can also be set to be retractable. By adjusting the telescopic length of the water level adjustment tube 31, the height difference between the upper end surface of the water level adjustment tube 31 and the gas outlet end of the pressure limiting tube 4 is controlled, thereby controlling the gas Adjustment of the upper pressure limit.
  • the liquid in the tank 1 is water
  • an emptying pipe 9 is provided at the bottom of the tank 1
  • a bottom valve is provided in the emptying pipe 9 for emptying the liquid in the tank 1 for cleaning or Maintain.
  • the biogas pressure protection device is installed on one side of the biogas anaerobic reaction device
  • the air inlet 11 is provided with a flange
  • one end of the flange is connected with the biogas discharge pipeline of the biogas anaerobic reaction device
  • the other end is welded to the pressure limiting pipe 4
  • the length of the pressure limiting tube 4 extending into the tank 1 is about two-thirds of the height of the tank 1.
  • the air outlet 12 is provided with a flange, and the atmosphere is communicated through the flange. In the working state of the gas pressure protection device, the bottom valve in the emptying pipe 9 is closed.
  • reserved ports 13 are also provided on both sides of the tank body 1, and flanges are welded on the reserved ports 13 for backup.
  • the bottom of the tank 1 is also provided with a base 8, which is made of metal and welded to the bottom of the tank 1 to support the tank 1.
  • the gas pressure protection device further includes a communicating body 2.
  • the communicating body 2 is arranged on one side of the tank body 1 and communicates with the liquid in the tank body 1, and the upper end surface of the water level regulating pipe 31 is arranged in the communicating body 2 .
  • the water level regulating pipe 31 extends into the communicating body 2 from the bottom of the communicating body 2, the upper end surface of the water level regulating pipe 31 is arranged in the communicating body 2, and the lower end surface of the water level regulating pipe 31 is located outside the communicating body 2.
  • the height of the upper end surface of the water level adjustment pipe 31 is increased, and the height of the water level 5 in the communicating body 2 and the tank body 1 is consistent with the height of the upper end surface of the water level adjustment pipe 31 through artificial water replenishment.
  • the upper limit of the pressure needs to be lowered, the height of the upper end surface of the water level adjustment pipe 31 is lowered, and the water higher than the upper end surface of the water level adjustment pipe 31 will flow out through the upper end surface of the water level adjustment pipe 31.
  • the setting of the water level adjustment pipe 31 makes the water level 5 in the tank 1 controlled by the height of the upper end surface of the water level adjustment pipe 31.
  • the connecting body 2 may not be provided, and the water level adjusting assembly 3 may be directly installed in the tank 1, and the upper limit of the gas pressure may also be adjusted.
  • the connecting body 2 has an open structure.
  • the tank body 1 is a cylindrical metal tank body, and the connecting body 2 is welded to one side of the tank body 1.
  • the connecting body 2 is set as an open structure, which is convenient for natural rainwater to supplement the lack of water in the tank body 1, and also facilitates the observation of the water level 5 and manual water replenishment operations. It has a certain degree of self-adjustment function and simplifies manual intervention operations.
  • the bottom of the communicating body 2 is lower than the plane where the air outlet end of the pressure limiting tube 4 is located. If the bottom of the connecting body 2 is higher than the plane where the outlet end of the pressure limiting tube 4 is located, when the upper limit of the set pressure is higher, the gas storage pressure can be adjusted, but the lower limit of the adjustable pressure will be limited, because the connection Body 2 is an open structure, the pressure in the communicating body 2 is atmospheric pressure, and the air pressure in the tank 1 is greater than atmospheric pressure, so the bottom of the communicating body 2 is slightly higher than the plane where the air outlet end of the pressure limiting tube 4 is located.
  • the corresponding adjustable lower limit of pressure relief is determined by the position of the bottom of the connecting body 2 relative to the plane where the air outlet end of the pressure limiting tube 4 is located, and the use is not affected when the gas storage pressure is high. If the bottom of the connecting body 2 is too far below the plane where the air outlet end of the pressure limiting tube 4 is located, the part below the plane where the air outlet end of the pressure limiting tube 4 is located in the tank body 1 is meaningless to adjust. Therefore, the bottom of the optional connecting body 2 should be slightly lower than the plane where the gas outlet end of the pressure limiting tube 4 is located, so that the lower limit of the adjustable range of the gas pressure protection device's discharge pressure can be as low as atmospheric pressure.
  • the water level adjustment assembly 3 further includes an adjustment and fastening assembly
  • the water level adjustment tube 31 is provided with an external thread
  • the external thread is used to adjust the height of the upper end surface of the water level adjustment tube 31
  • the adjustment and fastening assembly is used to connect the water level adjustment tube 31 fixed.
  • the adjusting and fastening assembly includes an adjusting nut 34 and a fixing nut 33.
  • the bottom center of the communicating body 2 is provided with a threaded hole.
  • the setting of the adjusting nut 34 is more convenient for adjusting the height of the upper end surface of the water level adjusting pipe 31.
  • the fixing nut 33 abuts against the bottom of the communicating body 2 and fixes the position of the water level adjustment pipe 31.
  • the adjusting nut 34 may not be provided, and the height of the upper end surface of the water level adjusting pipe 31 may be directly adjusted manually.
  • the water level adjusting tube 31 is set as a threaded tube, and the height of the threaded tube is fixed by one rotation.
  • the water depth of the pressure limiting tube 4 can be precisely controlled by the number of turns of the threaded tube, thereby increasing The control accuracy of the upper pressure limit is improved.
  • the water level adjusting assembly 3 further includes a sealing element, which is arranged between the communicating body 2 and the water level adjusting pipe 31 to seal the water level adjusting pipe 31 and the communicating body 2.
  • the seal is a gasket 32
  • the gasket 32 is made of silica gel
  • the gasket 32 is arranged between the communicating body 2 and the fixing nut 33
  • the adjusting nut 34 is arranged below the fixing nut 33.
  • the fixing nut 33 can fix the sealing gasket 32 and the water level adjusting pipe 31 to the communicating body 2 at the same time.
  • the gasket 32 is arranged to prevent the water in the communicating body 2 from flowing out of the gap between the threaded hole at the bottom of the communicating body 2 and the water level adjusting pipe 31.
  • the gasket 32 may also be made of rubber or other materials.
  • the gas pressure protection device further includes a communicating hole 6 for communicating the tank body 1 and the communicating body 2.
  • the side wall connecting the tank 1 and the communicating body 2 is provided with a communicating hole 6.
  • the main function of the communicating hole 6 is to connect the tank 1 and the communicating body 2, so as to adjust the water level in the communicating body 2. Adjust the height of the upper end surface of the pipe 31 to adjust the height of the water level 5 in the tank 1.
  • At least two communicating holes 6 are provided at intervals along the height direction of the tank body 1.
  • the communication hole 6 located at the lowest position is provided with an interval distance from the bottom of the communication body 2.
  • the structure of multiple small holes connected to the partition can effectively avoid the gas agitating the water surface fluctuation and overflow to reduce the water volume when the pressure is relieved and exhausted.
  • the pressure limiting pipe 4 is depressurizing and exhausting, the gas emerging from the water will agitate the fluctuation of the water surface in the tank 1.
  • the fluctuating water flow can flow in from one communicating hole 6 and flow out from the other communicating hole 6, thereby smoothing
  • the water surface fluctuates.
  • there are two communicating holes 6 provided and the height difference between the two communicating holes 6 is 7 cm.
  • the communication hole 6 at the lowest position is 5-10 cm away from the bottom of the communication body 2. This arrangement is to prevent the sediment accumulated at the bottom of the communication body 2 from blocking the communication hole 6 at the lowest position and cannot smooth water surface fluctuations.
  • two or more communicating holes 6 may also be arranged at intervals along the height direction, and two adjacent communicating holes 6 may be provided. The distance between them is 5-10cm, but the number should not be too much. The position of the communicating hole 6 is too high, which will limit the adjustment range of the upper pressure limit.
  • a plurality of communicating holes 6 may also be arranged laterally at the same height and arranged symmetrically.
  • the fluctuating water flow can flow in from a plurality of communication holes 6 at the same height, and then flow out from a plurality of communication holes 6 at another height, so as to stabilize the water surface fluctuation.
  • the tank body 1 and the communicating body 2 are partitioned by small diameter communicating holes 6 with height differences Connected, can effectively avoid the gas agitating the water surface fluctuation and overflow to reduce the water volume when the pressure is released and exhausted.
  • the arrangement of the water level adjusting pipe 31 and the communicating hole 6 with a height difference effectively avoids the problem of changes in the upper limit of the gas storage pressure caused by various disturbances, ensures the constant threshold of the upper pressure limit, and improves the safety of the equipment.
  • the diameter of the communication hole 6 is 6-10 mm. In this embodiment, the diameter of the communication hole 6 is 8 mm. If the diameter of the connecting hole 6 is less than 6mm, impurities in the water may block the connecting hole 6 and fail to connect the tank body 1 and the connecting body 2. If the diameter of the connecting hole 6 is greater than 10mm, it is not conducive to smoothing fluctuations. .
  • an observation window 7 is further provided on the tank body 1, and the observation window 7 is arranged opposite to the communicating body 2, and the bottom of the observation window 7 is lower than the air outlet end of the pressure limiting tube 4.
  • plexiglass is provided on the observation window 7, and the plexiglass is connected by a flange, and the situation in the tank 1 is observed through the plexiglass, which is convenient for investigation and maintenance.
  • the lower end of the observation window 7 is slightly lower than the plane where the air outlet end of the pressure limiting tube 4 is located, so as to facilitate the investigation of the air outlet end of the pressure limiting tube 4.
  • the height difference between the water level 5 in the tank 1 and the plane where the gas outlet end of the pressure limiting tube 4 is located is H, that is, the water pressure corresponding to the water inlet depth of the pressure limiting tube 4 is gaseous Upper pressure limit.
  • the tank body 1 and the communicating body 2 are communicated with each other through two communicating holes 6 with a diameter of 8 mm.
  • the height of the water level 5 in the tank body 1 is adjusted by adjusting the height of the upper end surface of the water level adjustment pipe 31, so as to realize the adjustment of the upper limit of the gas storage pressure, and the water vapor contained in the biogas can pass through the water level when it condenses and increases in the tank body 1.
  • Tank 1 and connecting body 2 are connected with small-diameter connecting holes 6 to connect the partitions, which can effectively prevent the pressure limit valve from disturbing the water surface when the pressure is released and exhausting. Stability of device operation.
  • the connecting body 2 is set as an open structure, which is convenient for natural rainwater to supplement the lack of water in the tank, and also facilitates the observation of the water level 5 and manual water replenishment operations. It has a certain degree of self-adjustment function and simplifies manual intervention operations.
  • the water level adjustment tube 31 may be directly sealed to the bottom of the communicating body 2 through a sealing element.
  • the sealing element is set as a rubber plug, the rubber plug is in interference fit with the through hole, and a connecting hole is provided in the middle of the rubber plug. Connection hole interference fit connection.
  • the tank body 1 and the communicating body 2 in this embodiment are arranged separately, and the bottom of the communicating body 2 is slightly lower than the air outlet end of the pressure limiting tube 4 in the tank body 1, and the tank body 1 is connected to the Two connecting holes are respectively provided on the opposite side walls of the body 2, and the diameter of the connecting holes is 6mm-10mm. Then the corresponding connecting holes are connected one by one through two connecting pipes to realize the communication between the tank body 1 and the connecting body 2 and to smooth the fluctuation of the water surface in the connecting body 2 when the pressure limiting pipe 4 is pressure-relieved and exhausted.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Wood Science & Technology (AREA)
  • Biotechnology (AREA)
  • Zoology (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Microbiology (AREA)
  • Sustainable Development (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

一种气体压力保护装置，包括罐体（1）和水位调节组件（3），罐体（1）内设置有液体，罐体（1）上设置有进气口（11）和出气口（12），进气口（11）内连接有限压管（4），限压管（4）的出气端伸入罐体（1）内的液体中；水位调节组件（3）包括水位调节管（31），水位调节管（31）的上端面高度可调，水位调节管（31）的下端面伸出罐体（1）外。该气体压力保护装置，通过调节水位调节管（31）的上端面高度，控制水位调节管（31）的上端面与限压管（4）的出气端的高度差，使得罐体（1）内水位的高度与水位调节管（31）的上端面的高度一致，进而控制限压管（4）的入水深度，限压管（4）的入水深度对应的水压即为气体的压力上限，从而实现对储气压力上限的调节。

Description

气体压力保护装置
本申请要求申请日为2020年5月22日、申请号为202010442098.1的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及厌氧处理技术领域，例如涉及一种气体压力保护装置。
背景技术
沼气发酵过程中需严格密封保证厌氧环境，沼气发酵装置中的沼气压力随着沼气利用过程动态变化。作为沼气发酵过程中的重要参数，沼气压力直接影响到沼气发酵装置的安全性，因此对沼气安全压力控制的可靠性与数据精度有着较高要求。
相关技术中使用水封泄压罐作为沼气压力保护装置时，水封泄压罐的进气口连接有限压管，限压管插入一定深度的水中，用水将与限压管连接的进气管内的气体与大气隔离，密封效果紧密。但溢水口与限压管底端的高度固定，导致压力上限无法调节。
发明内容
本申请提供了一种气体压力保护装置，能实现储气压力上限的调节。
一实施例提供一种气体压力保护装置，包括：
罐体，所述罐体内设置有液体，所述罐体上设置有进气口和出气口，所述进气口内连接有限压管，所述限压管的出气端伸入所述罐体内的所述液体中；
水位调节组件，所述水位调节组件包括水位调节管，所述水位调节管的上端面高度可调，所述水位调节管的下端面伸出所述罐体外。
可选地，还包括连通体，所述连通体设置于所述罐体的一侧，且与所述罐体内的所述液体连通，所述水位调节管的上端面设置于所述连通体内。
可选地，所述水位调节组件还包括调节紧固组件，所述水位调节管上设置有外螺纹，所述外螺纹用于调节所述水位调节管的上端面的高度，所述调节紧固组件用于将所述水位调节管固定。
可选地，所述水位调节组件还包括密封件，所述密封件设置于所述连通体 与所述水位调节管之间，用以密封所述水位调节管和所述连通体。
可选地，所述气体压力保护装置还包括连通孔，所述连通孔用以连通所述罐体和所述连通体。
可选地，沿所述罐体的高度方向间隔设置至少两个所述连通孔。
可选地，位于最低位置的所述连通孔与所述连通体的底部设置有间隔距离。
可选地，所述连通孔的直径为6-10mm。
可选地，所述连通体为敞口结构。
可选地，所述罐体上还设置有观察窗，所述观察窗与所述连通体相对设置，所述观察窗的底部低于所述限压管的出气端。
本申请提供的气体压力保护装置，通过在罐体内设置液体，进气口内连接限压管，限压管的出气端伸入罐体内的液体中。用罐体内的液体将限压管内的气体与大气隔离，密封效果好。通过设置水位调节组件，水位调节组件包括水位调节管，通过调节水位调节管的上端面高度，控制水位调节管的上端面与限压管的出气端的高度差，使得罐体内水位的高度与水位调节管的上端面的高度一致，进而控制限压管的入水深度。限压管的入水深度对应的水压即为气体的压力上限，从而实现对储气压力上限的调整。本申请提供的气体压力保护装置，储气压力上限便于调节。
本申请提供的气体压力保护装置，将水位调节管设置为螺纹管，螺纹管旋转一圈调节的高度固定，通过螺纹管的旋转圈数可精确控制限压管的入水深度，从而提高了压力上限的控制精度。
本申请提供的气体压力保护装置，沼气中水蒸气凝结造成水量增加时，会通过水位调节管实时溢出；罐体和连通体通过具有高度差的小直径连通孔分区连通，可有效避免泄压排气时气体搅动水面波动而溢流减少水量。水位调节管和具有高度差的连通孔的设置，有效避免了由于各种扰动引起的储气压力上限变化的问题，保证了压力上限的阈值恒定，提高了设备的安全性。
本申请提供的气体压力保护装置，将连通体设置为敞口结构，便于自然雨水对罐体内缺水的补充，也利于水位观察及人工补水的操作，具备一定程度的自调校功能，简化了人工干预操作。
附图说明
图1是本申请实施例一提供的气体压力保护装置的结构示意图。
图中：
1、罐体；2、连通体；3、水位调节组件；4、限压管；5、水位；6、连通孔；7、观察窗；8、底座；9、排空管；
11、进气口；12、出气口；13、预留接口；31、水位调节管；32、密封垫；33、固定螺母；34、调节螺母。
具体实施方式
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。其中，术语“第一位置”和“第二位置”为两个不同的位置。
除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一特征和第二特征直接接触，也可以包括第一特征和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下面结合附图并通过具体实施方式来进一步说明本申请的技术方案。
沼气的存储与利用广泛采用智能化控制，同时配备必要的人工手动操作干预，且须保障设备安全及操作安全，因此对沼气安全压力控制的可靠性与数据精度有着较高要求。当前现有的沼气(包括其他气体存储领域)安全压力保护装置主要有呼吸阀、电磁阀、水封泄压罐三类。
呼吸阀为机械式装置，采用固定配重及调节弹簧控制气体压力。当存储压力达到额定呼出正压时，压力阀瓣开启，气体排出。呼吸阀因弹簧疲劳系数存在变量而造成精度不高，且密封接触面为活动状态，易因沾染粉尘而影响密封效果。
电磁阀作为泄压装置时，由于设置有压力检测装置，不存在精度不高的缺陷，但因密封接触面为活动状态，易因沾染粉尘而影响密封效果；且电磁阀作为泄压装置时，选用的常闭阀，存在电网断电或电路保护跳闸时无法开启的风险。
由于沼气具有较强的腐蚀性及易爆性，对于上述两类阀式装置的金属部件有腐蚀作用，在作为沼气安全压力保护装置时，其可靠性和安全性方面不及水封泄压罐。而相关技术中的水封泄压罐压力上限无法调节；而且罐体内水分一定时期内的蒸发减量以及沼气中含有的水蒸气在罐内凝结增量，使得水量波动从而造成气体存储压力上限的波动。
鉴于此，为满足沼气安全压力保护装置运行稳定性高及控制精度高的需求；同时实现装置具备一定程度的自调校功能，简化人工干预操作，本申请研发了一种新的沼气安全压力保护装置。
实施例一
如图1所示，本实施例提供了一种气体压力保护装置，包括罐体1和水位调节组件3，罐体1内设置有液体，罐体上设置有进气口11和出气口12，进气口11内连接有限压管4，限压管4的出气端伸入罐体1内的液体中。水位调节组件3包括水位调节管31，水位调节管31的上端面高度可调，水位调节管31的下端面伸出罐体1外。
本实施例提供的气体压力保护装置，通过在罐体1内设置液体，进气口内连接限压管4，限压管4的出气端伸入罐体1内的液体中。用罐体1内的液体将限压管4内的气体与大气隔离，密封效果好。通过设置水位调节组件3，水位调节组件3包括水位调节管31，通过调节水位调节管31的上端面高度，控制水位调节管31的上端面与限压管4的出气端的高度差，使得罐体1内水位5的高度与水位调节管31的上端面的高度一致，进而控制限压管4的入水深度，限压管4的入水深度对应的水压即为气体的压力上限，从而对储气压力上限的调整。本申请提供的气体压力保护装置，储气压力上限便于调节。
在本实施例中，限压管4和水位调节管31均为直管，进气口11和出气口 12均设置在罐体1的顶端，限压管4的一端与进气口11焊接，另一端伸入罐体1内的液体中，限压管4的出气端所在的水平面与罐体1底部内壁的高度差为h，以使进入罐体1内的气体通过限压管4进入液体中并克服液体压力后进入罐体1上部的气相空间内，故而能将外部的空气与沼气实现隔断，由于进入罐体1内的沼气通过液体后再经出气口12排出，解决了沼气在传输过程中易燃易爆的安全隐患。
在其他实施例中，进气口11也可以设置在罐体1的中部或下端，只需保证限压管4的出气端在液体中，将外部的空气与沼气隔断。当进气口11设置在罐体1的中部时，将限压管4设置为L形管或其他形状的管体，L形管的出气端可以向上，也可以向下。
在其他实施例中，水位调节管31也可以设置为可伸缩的，通过调节水位调节管31的伸缩长度，控制水位调节管31的上端面与限压管4的出气端的高度差，从而控制气体压力上限的调节。
在本实施例中，罐体1内的液体为水，罐体1的底部设置有排空管9，排空管9内设置有底阀，用于排空罐体1内液体，以便清洗或维修。沼气压力保护装置安装在沼气厌氧反应装置的一侧，进气口11设置有法兰，法兰的一端与沼气厌氧反应装置的沼气排出管路连接，另一端与限压管4焊接连接，限压管4伸入罐体1内的长度约为罐体1高度的三分之二。出气口12设置有法兰，通过法兰连通大气。在该气体压力保护装置工作状态下，排空管9内的底阀关闭。
本实施例提供的气体压力保护装置，罐体1的两侧还设置有预留接口13，预留接口13上焊接有法兰，以作备用。罐体1的底部还设置有底座8，底座8由金属制成，焊接在罐体1的底部，用于支撑罐体1。
可选地，该气体压力保护装置还包括连通体2，连通体2设置于罐体1的一侧，且与罐体1内的液体连通，水位调节管31的上端面设置于连通体2内。在本实施例中，水位调节管31从连通体2的底部伸入连通体2内，水位调节管31的上端面设置于连通体2内，水位调节管31的下端面位于连通体2外。通过调节水位调节管31的上端面高度，控制水位调节管31的上端面与限压管4的出气端的高度差。示例性地，当需要提高压力上限时，提高水位调节管31的上端面高度，通过人工补水，使得连通体2和罐体1内的水位5高度与水位调节管31的上端面的高度一致。当需要降低压力上限时，降低水位调节管31的上端面高度，高出水位调节管31的上端面的水会通过水位调节管31的上端面流出。 水位调节管31的设置使得罐体1内的水位5由水位调节管31的上端面高度控制，沼气中含有的水蒸气在罐体1内凝结增量时，可通过水位调节管31的上端面实时溢出，避免了沼气中的水蒸气对储气压力上限的扰动，提高了设备的安全性。
在其他实施例中，也可以不设置连通体2，直接将水位调节组件3设置在罐体1内，也可以实现气体压力上限的调节。
可选的，连通体2为敞口结构。在本实施例中，罐体1为圆柱形金属罐体，连通体2焊接在罐体1的一侧。连通体2设置为敞口结构，便于自然雨水对罐体1内缺水的补充，也利于水位5的观察及人工补水操作，具备一定程度的自调功能，简化人工干预操作。
可选地，连通体2的底部低于限压管4的出气端所在的平面。如果连通体2的底部高于限压管4的出气端所在的平面，当设定的压力上限较高的时候，是可以实现储气压力调节的，但是压力可调下限会有限制，因为连通体2为敞口结构，连通体2内的压力为大气压，而罐体1内的气压比大气压大，所以连通体2的底部比限压管4的出气端所在的平面稍微高一些是可以的，对应的可调泄压下限由连通体2底部相对于限压管4的出气端所在平面的位置决定，对于储气压力较高的情形，不影响使用。如果连通体2的底部低于限压管4的出气端所在的平面太多，罐体1内限压管4的出气端所在平面以下的部分调节起来没有意义。所以可选连通体2的底部宜略低于限压管4的出气端所在平面，以使气体压力保护装置的泄气压力的可调节范围的下限可低至大气压。
示例性地，水位调节组件3还包括调节紧固组件，水位调节管31上设置有外螺纹，外螺纹用于调节水位调节管31的上端面高度，调节紧固组件用于将水位调节管31固定。在本实施例中，调节紧固组件包括调节螺母34和固定螺母33，连通体2的底部中心设置有螺纹孔，水位调节管31穿过螺纹孔与调节螺母34配合调节水位调节管31的上端面的高度。调节螺母34的设置更便于水位调节管31的上端面的高度调节。固定螺母33与连通体2的底部抵接，将水位调节管31的位置固定。在其他实施例中，也可以不设置调节螺母34，直接手动调节水位调节管31的上端面的高度。
本实施例提供的气体压力保护装置，将水位调节管31设置为螺纹管，螺纹管旋转一圈调节的高度固定，通过螺纹管的旋转圈数可精确控制限压管4的入水深度，从而提高了压力上限的控制精度。
可选地，水位调节组件3还包括密封件，密封件设置于连通体2与水位调节管31之间，用以密封水位调节管31和连通体2。在本实施例中，密封件为密封垫32，密封垫32由硅胶制成，密封垫32设置于连通体2和固定螺母33之间，调节螺母34设置于固定螺母33下方。固定螺母33可同时将密封垫32和水位调节管31与连通体2固定。密封垫32的设置是为了防止连通体2内的水从连通体2底部的螺纹孔与水位调节管31之间的间隙流出。在其他实施例中，密封垫32也可以由橡胶或者其他材质制成。
可选地，气体压力保护装置还包括连通孔6，连通孔6用以连通罐体1和连通体2。在本实施例中，罐体1与连通体2连接的侧壁上设置有连通孔6，连通孔6的主要作用是连通罐体1和连通体2，以实现通过调节连通体2内的水位调节管31的上端面高度，调节罐体1内水位5的高度。
可选地，沿罐体1的高度方向间隔设置至少两个连通孔6。可选地，位于最低位置的连通孔6与连通体2的底部设置有间隔距离。采用多个小孔连接分区的结构可有效避免泄压排气时气体搅动水面波动而溢流减少水量。限压管4在泄压排气时水中冒出的气体会搅动罐体1内水面波动，在水面波动时，波动的水流可以从一个连通孔6流入，从另一个连通孔6流出，从而平抑水面波动。在本实施例中，连通孔6设置为两个，且两个连通孔6之间的高度差为7cm。最低位置的连通孔6距连通体2的底部为5-10cm，这样的设置是为了防止连通体2底部积存的泥沙将最低位置的连通孔6堵塞后不能平抑水面波动。
在其他实施例中，为了防止连通体2底部积累的泥沙堵塞最低位置的连通孔6后导致平抑失灵，也可以沿高度方向间隔设置两个以上的连通孔6，相邻两个连通孔6之间的距离为5-10cm，但数量不宜太多，连通孔6设置的位置太高，会导致压力上限的调节范围受限。
在本申请另一个可选地实施例中，也可以在同一高度横向设置多个连通孔6，且对称设置。在水面波动时，波动的水流可以从同一高度的多个连通孔6流入，再从另一高度的多个连通孔6流出，从而平抑水面波动。
本实施例提供的气体压力保护装置，沼气中水蒸气凝结造成水量增加时，会通过水位调节管31的上端面实时溢出；罐体1和连通体2通过具有高度差的小直径连通孔6分区连通，可有效避免泄压排气时气体搅动水面波动而溢流减少水量。水位调节管31和具有高度差的连通孔6的设置，有效避免了由于各种扰动引起的储气压力上限变化的问题，保证了压力上限的阈值恒定，提高了设备的安 全性。
可选地，连通孔6的直径为6-10mm。在本实施例中，连通孔6的直径为8mm。如果连通孔6的直径小于6mm，水中的杂质有可能会造成连通孔6的堵塞，起不到连通罐体1和连通体2的作用；如果连通孔6的直径大于10mm，则不利于平抑波动。
可选地，罐体1上还设置有观察窗7，观察窗7与连通体2相对设置，观察窗7的底部低于限压管4的出气端。在本实施例中，观察窗7上设置有有机玻璃，有机玻璃通过法兰连接，透过有机玻璃观察罐体1内的情况，便于查勘及检修。观察窗7的下端略低于限压管4的出气端所在的平面，以便于查勘限压管4的出气端的情况。
本申请提供的气体压力保护装置，罐体1内的水位5与限压管4的出气端所在的平面之间的高度差为H，即限压管4的入水深度对应的水压为气体的压力上限。罐体1与连通体2通过两个直径为8mm的连通孔6连通。通过调节水位调节管31的上端面的高度调节罐体1内水位5的高度，从而实现对储气压力上限的调整，且沼气中含有的水蒸气在罐体1内凝结增量时可通过水位调节管31的上端面实时溢出。罐体1和连通体2采用小直径的连通孔6连接分区，可有效避免限压阀泄压排气时气体搅动水面波动而溢流减少水量导致的压力上限阈值不恒定，提高了气体压力保护装置运行的稳定性。将连通体2设置为敞口结构，便于自然雨水对罐内缺水的补充，也利于水位5观察及人工补水操作，具备一定程度的自调校功能，简化人工干预操作。
实施例二
在本申请另一个可选地实施例中，水位调节管31可直接通过密封件与连通体2的底部密封连接。通过在连通体2的底部设置通孔，密封件设置为橡胶塞，橡胶塞与通孔过盈配合，且在橡胶塞的中部设置一个连接孔，水位调节管31可穿过连接孔，且与连接孔过盈配合连接。在调节连通体2内水位调节管31的上端面的高度时，可借助外力对橡胶塞外侧的水位调节管31施加向上或者向下的力，以调节连通体2内水位调节管31的上端面高度。通过橡胶塞，即可调节水位调节管31的上端面高度，又可实现水位调节管31的密封和固定。
实施例三
本实施例与实施例一的区别在于：本实施例中的罐体1和连通体2分开设置，连通体2底部略低于罐体1内限压管4的出气端，罐体1和连通体2相对的侧壁上分别设置有两个连接孔，连接孔的直径为6mm-10mm。然后通过两个连 接管分别将相对应的连接孔一一对应连接，以实现罐体1和连通体2的连通以及平抑限压管4在泄压排气时连通体2内水面的波动。

Claims (10)

  1. 一种气体压力保护装置，包括：
    罐体(1)，所述罐体(1)内设置有液体，所述罐体(1)上设置有进气口(11)和出气口(12)，所述进气口(11)内连接有限压管(4)，所述限压管(4)的出气端伸入所述罐体(1)内的所述液体中；
    水位调节组件(3)，所述水位调节组件(3)包括水位调节管(31)，所述水位调节管(31)的上端面高度可调，所述水位调节管(31)的下端面伸出所述罐体(1)外。
  2. 根据权利要求1所述的气体压力保护装置，还包括连通体(2)，所述连通体(2)设置于所述罐体(1)的一侧，且与所述罐体(1)内的所述液体连通，所述水位调节管(31)的上端面设置于所述连通体(2)内。
  3. 根据权利要求2所述的气体压力保护装置，其中，所述水位调节组件(3)还包括调节紧固组件，所述水位调节管(31)上设置有外螺纹，所述外螺纹用于调节所述水位调节管(31)的上端面的高度，所述调节紧固组件用于将所述水位调节管(31)固定。
  4. 根据权利要求2或3所述的气体压力保护装置，其中，所述水位调节组件(3)还包括密封件，所述密封件设置于所述连通体(2)与所述水位调节管(31)之间，用以密封所述水位调节管(31)和所述连通体(2)。
  5. 根据权利要求2所述的气体压力保护装置，还包括连通孔(6)，所述连通孔(6)用以连通所述罐体(1)和所述连通体(2)。
  6. 根据权利要求5所述的气体压力保护装置，其中，沿所述罐体(1)的高度方向间隔设置至少两个所述连通孔(6)。
  7. 根据权利要求6所述的气体压力保护装置，其中，位于最低位置的所述连通孔(6)与所述连通体(2)的底部设置有间隔距离。
  8. 根据权利要求6所述的气体压力保护装置，其中，所述连通孔(6)的直径为6-10mm。
  9. 根据权利要求2所述的气体压力保护装置，其中，所述连通体(2)为敞口结构。
  10. 根据权利要求2所述的气体压力保护装置，其中，所述罐体(1)上还设置有观察窗(7)，所述观察窗(7)与所述连通体(2)相对设置，所述观察窗(7)的底部低于所述限压管(4)的出气端。
PCT/CN2020/123507 2020-05-22 2020-10-26 气体压力保护装置 WO2021232673A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010442098.1 2020-05-22
CN202010442098.1A CN111503519A (zh) 2020-05-22 2020-05-22 一种气体压力保护装置

Publications (1)

Publication Number Publication Date
WO2021232673A1 true WO2021232673A1 (zh) 2021-11-25

Family

ID=71878595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/123507 WO2021232673A1 (zh) 2020-05-22 2020-10-26 气体压力保护装置

Country Status (2)

Country Link
CN (1) CN111503519A (zh)
WO (1) WO2021232673A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111503519A (zh) * 2020-05-22 2020-08-07 广东电网有限责任公司清远供电局 一种气体压力保护装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202032290U (zh) * 2011-05-09 2011-11-09 北京三益生态环境工程有限公司 一体化正负压保护器
CN103062624A (zh) * 2013-01-08 2013-04-24 北京德中绿源设备有限公司 一种正负压保护器
CN203212570U (zh) * 2013-04-09 2013-09-25 山东明硕新能源科技有限公司 正负压保护器
CN203890359U (zh) * 2014-06-16 2014-10-22 北京盈和瑞环保工程有限公司 正负压保护器
KR20150059400A (ko) * 2013-11-22 2015-06-01 (주)포스코켐텍 탱크의 압력조정장치
CN206985994U (zh) * 2017-07-20 2018-02-09 光大环境科技（中国）有限公司 一种水封设备
CN111503519A (zh) * 2020-05-22 2020-08-07 广东电网有限责任公司清远供电局 一种气体压力保护装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5698556B2 (ja) * 2011-02-17 2015-04-08 ヤンマー株式会社 バイオガス発電装置
CN102604820B (zh) * 2012-03-16 2013-05-22 方朝阳 一种多功能自动调节器
CN206529500U (zh) * 2017-01-26 2017-09-29 湖南特科能热处理有限公司 一种淬火设备
CN206858571U (zh) * 2017-06-27 2018-01-09 广西果然美生态技术有限公司 一种沼气池恒压稳压装置
CN208378867U (zh) * 2018-03-12 2019-01-15 江门广洁环保技术开发有限公司 一种可调节低压卸压装置
DE102018114366A1 (de) * 2018-06-15 2019-12-19 EEO Tech GmbH Verfahren und Vorrichtung zur Aufbereitung von biologischen Stoffen, insbesondere von Gärresten pflanzlicher und tierischer Herkunft, insbesondere aus Biogasanlagen, von Gülle oder von sonstigen organischen Abfallprodukten
CN210314275U (zh) * 2019-07-29 2020-04-14 北京首创环境科技有限公司 一种用于垃圾焚烧电厂渗滤液厌氧沼气回收的水封罐
CN110586328A (zh) * 2019-10-14 2019-12-20 神华天津煤炭码头有限责任公司 液位测量装置及湿式电除尘器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202032290U (zh) * 2011-05-09 2011-11-09 北京三益生态环境工程有限公司 一体化正负压保护器
CN103062624A (zh) * 2013-01-08 2013-04-24 北京德中绿源设备有限公司 一种正负压保护器
CN203212570U (zh) * 2013-04-09 2013-09-25 山东明硕新能源科技有限公司 正负压保护器
KR20150059400A (ko) * 2013-11-22 2015-06-01 (주)포스코켐텍 탱크의 압력조정장치
CN203890359U (zh) * 2014-06-16 2014-10-22 北京盈和瑞环保工程有限公司 正负压保护器
CN206985994U (zh) * 2017-07-20 2018-02-09 光大环境科技（中国）有限公司 一种水封设备
CN111503519A (zh) * 2020-05-22 2020-08-07 广东电网有限责任公司清远供电局 一种气体压力保护装置

Also Published As

Publication number Publication date
CN111503519A (zh) 2020-08-07

Similar Documents

Publication Publication Date Title
WO2021232673A1 (zh) 气体压力保护装置
GB2072807A (en) Venting devices
CN111257596B (zh) 一种扫描探针显微镜狭小实验腔环境气氛精确控制装置
US4120331A (en) Low pressure gas regulator
CN101135483A (zh) 一种用来增加气体湿度的仪器
US6026842A (en) Float activated shutoff valve
JP4194997B2 (ja) タンク内圧力調整弁装置
CN210544062U (zh) 一种气液分离装置及气液分离系统
CN207334260U (zh) 蒸汽伴热装置
CN205712327U (zh) 无负压供水系统
CN206356001U (zh) 一种恒温恒湿试验箱的水路系统
CN110274866A (zh) 可同时监测气相和液相腐蚀的挂片装置和方法
CN114849284A (zh) 喷淋装置消泡的方法
CN208594906U (zh) 常压油井井口加药装置
CN208165544U (zh) 一种水封箱
CN206816879U (zh) 一种液封式阻火隔离装置
CN210473599U (zh) 一种除臭设备密封水循环系统
CN214650830U (zh) 呼吸阀
CN209068496U (zh) 一种用于锅炉的废蒸汽水收集器
CN110755775A (zh) 水封阻火器用液位调节装置
US20190011073A1 (en) Fluid flow valve
CN212152209U (zh) 气体湿度调节装置和干燥用薄膜性能试验系统
KR100370603B1 (ko) 냉난방 배관의 가스 제거장치
CN215634998U (zh) 一种矿泉水生产中的管道放空阀门
CN212107869U (zh) 干燥用薄膜性能试验系统的干燥段

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20936221

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20936221

Country of ref document: EP

Kind code of ref document: A1