CN113833855B - Water seal fire-retarding explosion venting device - Google Patents
Water seal fire-retarding explosion venting device Download PDFInfo
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- CN113833855B CN113833855B CN202111134981.5A CN202111134981A CN113833855B CN 113833855 B CN113833855 B CN 113833855B CN 202111134981 A CN202111134981 A CN 202111134981A CN 113833855 B CN113833855 B CN 113833855B
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- 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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
- F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
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- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a water seal fire-retarding explosion venting device, which comprises a shell, a gas inlet pipe in the device, a gas outlet, a water supplementing and draining device, an explosion venting device and an explosion venting port thereof, and a diversion orifice plate positioned at a set height, wherein the outlets of the diversion orifice plate and the gas inlet pipe in the device are lower than the lower limit H of the designed water seal liquid level, a baffle plate is further arranged above the diversion orifice plate in the shell, a gas-liquid separation cavity is formed by enclosing the shell, the gas inlet pipe in the device, the diversion orifice plate and the baffle plate, filter fillers are filled in the gas-liquid separation cavity, the upper part of the gas-liquid separation cavity is communicated with the gas outlet and the explosion venting port, the shell is provided with a filler port communicated with the gas-liquid separation cavity, the water supplementing and draining device comprises a water supplementing pipe and a water seal cylinder which are communicated with the shell, the water seal cylinder is connected with a drain cylinder, and floating ball liquid level transmitters are arranged in the water seal cylinder and the drain cylinder to control electromagnetic valves of the water supplementing pipe and the drain pipe. The device has the advantages of simple structure, stable liquid level and high control precision.
Description
Technical Field
The invention relates to a water-sealed fire-retarding explosion venting device in a low-concentration gas conveying system.
Background
The water-sealed fire-retarding explosion venting device is currently widely applied to the starting end and the tail end of a low-concentration gas conveying system. The water-sealed fire-retarding explosion venting device comprises a shell, an air inlet, an air outlet, an air inlet pipe in the device, an explosion venting device and an explosion venting opening, wherein flame-retarding liquid is arranged in the shell, is usually water and can play a role in sealing and fire retarding; the air inlet and the air outlet are arranged on two sides of the shell and are usually positioned on the same horizontal line; an air inlet pipe in the device is fixed in the shell and is connected with the air inlet, the tail end of the air inlet pipe in the device is positioned below the normal liquid level of the flame-retardant liquid, and a flow dividing pore plate is arranged below the liquid level, so that the gas which is introduced below the liquid level is discharged through an air outlet after gas-liquid separation is completed through the pore plate; the explosion venting port is arranged at the top end of the shell and has the functions of pressure relief and explosion venting; the device is also provided with a liquid level control device which can supplement water to the device or drain water from the control device so as to ensure that the water seal fire-retarding explosion venting device works normally.
In order to achieve the purposes of preventing and eliminating dangers, the water level in the shell of the water-seal fire-retarding explosion venting device should be accurately controlled, however, most of water-seal fire-retarding explosion venting devices in the current market are complex in structure, fluctuation of the liquid level in the shell is large, and the system has the defects of frequent water supplementing and draining, inaccurate liquid level measurement and the like. Therefore, development of a water-seal fire-retarding explosion venting device with simpler structure, more stable liquid level and higher control precision is urgently needed.
The Chinese patent with publication number of CN102278133A published by 12 months and 14 days 2011 is a single overflow water seal fire-retarding explosion-venting device, which has simpler structure compared with the common multi-tank water seal fire-retarding explosion-venting device in the market, is used for controlling the water supplementing and draining of the device through an overflow drainage box and a liquid level control box which are arranged in a shell, and adopts various technical means to increase the liquid level stability in the operation of the device. However, in use, the device still has the problems of large liquid level fluctuation and insufficient water supply and drainage control precision, and needs to be further improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a water-seal fire-retarding explosion venting device which has more stable liquid level in the running process of the device, thereby being beneficial to improving the control precision of water supply and drainage.
The technical scheme adopted for solving the technical problems is as follows: the water seal fire-retarding explosion venting device comprises a shell, a gas inlet pipe, a gas outlet, a water supplementing and draining device, an explosion venting opening and a flow dividing orifice plate, wherein the explosion venting opening is positioned at a set height, a baffle plate is further arranged above the flow dividing orifice plate in the shell, a gas-liquid separation cavity is formed by enclosing the shell, the gas inlet pipe, the flow dividing orifice plate and the baffle plate in the device, filter fillers are filled in the gas-liquid separation cavity, the upper part of the gas-liquid separation cavity is communicated with the gas outlet and the explosion venting opening, and a filler opening communicated with the gas-liquid separation cavity is arranged on the shell. The filler port is used for filling filter filler into the gas-liquid separation cavity or replacing the filter filler. The gas-liquid separation cavity can further reduce liquid level fluctuation caused by bubbles, and can also greatly reduce moisture carried by gas escaping from the upper part of the gas-liquid separation cavity, so that the liquid level can be kept stable for a longer time.
The baffle include orifice plate, bottom plate and connect the swash plate between orifice plate and bottom plate, the swash plate is by being close to gas outlet one end and upwards be close to the explosion venting mouth to one side, the lower one end of swash plate is relative its higher one end and is closer to the gas outlet, is provided with the wet return on the bottom plate, the position of bottom plate is less than the gas outlet. When water is accumulated on the bottom plate, the water can flow back to the liquid containing cavity below the bottom plate in time, and cannot enter the gas outlet.
The outlet of the water return pipe is lower than the split orifice plate, so that the water returned by the water return pipe enters the lower position of the liquid containing cavity in the shell.
The position of the upper pore plate is higher than that of the gas inlet, so that the volume of the gas-liquid separation cavity and the effective area of the upper pore plate can be effectively ensured, the gas-liquid separation effect is further improved, the liquid level is maintained stable, and the liquid loss is reduced.
The filtering filler adopts PP polyhedral hollow spheres, and the PP polyhedral hollow spheres are used as the filler, so that the filtering filler has the advantages of small resistance, corrosion resistance, long service life and good separation effect. The existing PP multi-surface hollow spheres are often used for a carbon dichloride degassing tower, a contact reaction tower and the like, and a precedent for using the PP multi-surface hollow spheres as a filtering material in a water-sealed fire-retarding explosion venting device is not seen.
According to the description of the structure and the function of the gas-liquid separation cavity, the filtering filler can also be selected from stainless steel wire tennis balls, so that the filtering filler is corrosion-resistant, long in service life and good in separation effect, but the gas resistance is larger.
Based on the scheme, the invention further optimizes the water supplementing and draining device. The water replenishing and draining device is located outside the shell and comprises a water sealing cylinder, a draining cylinder, two floating ball liquid level transmitters which are respectively arranged in the cylinder, a water replenishing pipe, a water replenishing and draining valve, a draining pipe and a draining electromagnetic valve, wherein the water sealing cylinder is communicated with the shell through two shell communicating pipes which are arranged up and down, the water level in the water sealing cylinder is consistent with the water level in the shell all the time under the working state, the water replenishing floating ball liquid level transmitters are arranged in the water sealing cylinder, the water replenishing and draining valve is controlled by a transmission signal of the water sealing cylinder, the water sealing cylinder is communicated with the draining cylinder through the cylinder communicating pipe, the lowest position of the inner wall of the cylinder communicating pipe is at the same height with the designed water sealing liquid level high limit H1, the draining floating ball liquid level transmitters are arranged in the draining cylinder, the transmission signal of the water replenishing and draining electromagnetic valve and the draining electromagnetic valve are normally closed valves. Compared with the prior liquid level control box and overflow drainage box scheme arranged in the shell, the water supplementing and draining device does not occupy the space in the shell, has no flow field disturbance factor basically under the liquid level, is favorable for the liquid level to be quickly stabilized under the abrupt change condition, has much smaller cross sectional areas of the water seal cylinder and the drainage cylinder compared with the cross sectional area of the liquid containing cavity in the shell, ensures the sensitivity and reliability of the liquid level signal in the shell obtained by the water seal cylinder, and is favorable for improving the liquid level control precision.
The glass tube liquid level meter that still is provided with outside the casing and is linked together with the water seal section of thick bamboo, and glass tube liquid level meter is also linked together with the water seal section of thick bamboo through two communicating pipes that are located respectively above the upper limit of water seal liquid level of design, lower extreme, and its liquid level remains unanimously throughout with the liquid level in the casing for the liquid level height in the visual display casing, the convenient observation, glass tube liquid level meter still can proofread the numerical value of moisturizing liquid level changer, avoids leading to the incident because of moisturizing liquid level changer trouble.
The drainage cylinder can temporarily store a small amount of fire-retarding liquid, when the drainage floating ball liquid level transmitter detects that the liquid level height reaches the drainage liquid level H2, the drainage solenoid valve is opened for drainage until the liquid level reaches the safety liquid level H3, and the drainage solenoid valve is closed, so that water without the drainage cylinder flows back into the water seal cylinder and the shell, and H3 is more than H2 and less than or equal to H1.
In order to realize water seal, the outlets of the split orifice plate and the air inlet pipe in the device are lower than the lower limit of the designed water seal liquid level, and the split orifice plate is preferably flush with the outlet of the air inlet pipe in the device, so that the water seal liquid level of the shell design is conveniently and accurately controlled.
The beneficial effects of the invention are as follows: the device has the advantages that the device is simple in structure, the effects of explosion venting and fire blocking in the gas pipeline conveying process can be effectively achieved, moisture carried in gas can be filtered and refluxed more fully through the gas-liquid separation cavity and the filtering filler, splash water is intercepted, moisture entering tail end equipment is reduced, accordingly, the liquid level can be maintained at a set liquid level for a long time, the inclined part of baffle plates can play the role of explosion venting guide, the water return pipe of the baffle plates can drain water accumulated on the baffle plates into the water cavity, the liquid level signals measured by the floating ball liquid level transmitter of the water supplementing and draining device are more stable and accurate due to the fact that the liquid level is more stable, the starting interval time of the water supplementing and draining system can be prolonged due to the external double-cylinder design, and the device service life is greatly promoted. The water-seal fire-retarding explosion venting device is also suitable for safe transportation of other water-insoluble inflammable and explosive gases.
Drawings
Fig. 1 is a schematic diagram of the internal structure of the water seal fire-retarding explosion venting device of the invention.
Fig. 2 is a front view of the water seal fire-retarding explosion venting device of the present invention.
Fig. 3 is a left side view of fig. 2.
Marked in the figure as: 1-shell, 2-gas inlet, 3-filter packing, 4-water supplementing pipe and water supplementing electromagnetic valve, 5-split orifice plate, 6-water returning pipe, 7-baffle, 8-gas outlet, 9-in-device air inlet pipe, 10-explosion venting device, 11-drainage floating ball liquid level transmitter, 12-water supplementing floating ball liquid level transmitter, 13-cylinder communicating pipe, 14-drain pipe and drainage electromagnetic valve, 15-glass pipe liquid level meter, 16-packing port, 17-shell communicating pipe, 18-water sealing cylinder, 19-drainage cylinder, 20-explosion venting port, 71-bottom plate, 72-inclined plate and 73-upper orifice plate.
Lower H-seal level (not shown), upper H1-seal level, H2-drain level, H3-safety level.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1, 2 and 3, the water seal fire-retarding explosion venting device of the invention comprises a shell 1, a gas inlet 2, a gas inlet pipe 9 in the device, a gas outlet 8, a water supplementing and draining device, an explosion venting device 10, an explosion venting port 20 thereof and a diversion orifice plate 5 positioned at a set height, wherein the outlets of the diversion orifice plate 5 and the gas inlet pipe 9 in the device are lower than the designed water seal liquid level lower limit H, a baffle 7 is further arranged above the diversion orifice plate 5 in the shell 1, a gas-liquid separation cavity is formed by enclosing the shell 1, the gas inlet pipe 9 in the device, the diversion orifice plate 5 and the baffle 7, a filter filler 3 is filled in the gas-liquid separation cavity, the upper part of the gas-liquid separation cavity is communicated with the gas outlet 8 and the explosion venting port 20, and a filler port 16 communicated with the gas-liquid separation cavity is arranged on the shell 1. The gas-liquid separation cavity not only further reduces the fluctuation of the liquid level caused by bubbles, but also greatly reduces the liquid carried by the gas escaping from the upper part of the gas-liquid separation cavity, so that the liquid level can be kept stable for a longer time, the liquid loss along with the gas is fundamentally reduced, the liquid level reducing speed is slowed down, and the water supplementing interval is prolonged.
Examples:
as shown in fig. 1, 2 and 3, the water-sealed fire-retarding explosion venting device of the present invention comprises water and a baffle 7 as a fire-retarding liquid placed in a housing 1; the gas inlet 2 and the gas outlet 8 are positioned on the same horizontal line and symmetrically distributed on two sides of the shell 1; the explosion venting device 10 is positioned at the top of the shell 1 and comprises an explosion-proof rubber plate and an explosion-proof lining, and a safety protection cover is arranged around the explosion venting opening 20; the water supplementing pipe, the water supplementing electromagnetic valve 4 and the air inlet pipe 9 in the device are fixed on the shell 1, the positions of the water supplementing pipe and the water supplementing electromagnetic valve 4 are higher than the designed water seal liquid level H1, one end of the air inlet pipe 9 in the device is a fuel gas inlet 2, and the outlet at the other end of the air inlet pipe 9 in the device is positioned on the central line of the shell and below the designed water seal liquid level lower limit H; the split orifice plate 5 is connected to the tail end of the air inlet pipe 9 in the device and is flush with the air inlet pipe 9 in the device, so that large bubbles can be divided into uniform small bubbles, and liquid level fluctuation is reduced; the water seal cylinder 18 and the drainage cylinder 19 are arranged outside the shell 1, the water seal cylinder 18 is arranged at the upper part of the water seal cylinder 18, the water seal cylinder 18 is communicated with the water cavity of the shell 1 through two shell communicating pipes 17, the heights of the two shell communicating pipes 17 are respectively positioned above the designed upper limit H1 and below the designed lower limit H of the water seal liquid level, the water cavity liquid level in the shell 1 is ensured to be consistent with the liquid level in the water seal cylinder 18, and the liquid level height is monitored in real time through the water seal floating ball liquid level transmitter 12 arranged at the upper part; the glass tube liquid level meter 15 is communicated with the water seal cylinder 18, so that the liquid level change can be displayed in real time; the shell 1, the split orifice plate 5, the air inlet pipe 9 in the device and the baffle 7 form a gas-liquid separation cavity, PP multi-surface hollow spheres are filled in the gas-liquid separation cavity to serve as the filter packing 3, water can be effectively prevented from splashing into tail end equipment, the liquid level is maintained stable, and the filter packing 3 is filled and replaced through the packing opening 16; the baffle 7 comprises an upper orifice plate 73, a bottom plate 71 and an inclined plate 72 connected between the upper orifice plate 73 and the bottom plate 71, the upper orifice plate 73 is positioned above the air inlet pipe 9 in the device, is a porous plate like the split orifice plate 5, the inclined plate 72 is not provided with holes, the bottom plate 71 is not provided with holes except for small holes where the water return pipe 6 is arranged, the bottom plate 71 is basically arranged parallel to the split orifice plate 5 and is positioned lower than the gas outlet 8, so that water accumulated on the baffle can be prevented from entering the gas outlet 8 and is guided by the water return pipe 6 to flow back into the water cavity of the shell; the inclined plate 72 is inclined upwards from one end close to the gas outlet 8 to be close to the explosion venting port 20, the lower end of the inclined plate 72 is closer to the gas outlet 8 than the higher end of the inclined plate, the inclined direction of the inclined plate is favorable for explosion venting and guiding, the explosion venting device 10 is arranged at the top of the shell 1, and when combustion or explosion occurs in a pipeline or equipment, shock waves generated by the explosion can impact the explosion venting rubber plate of the explosion venting device 10 to release explosion pressure.
The working principle of the invention is as follows: the upper and lower limit liquid levels of water replenishing and draining should be set before use. The upper limit of water replenishing is the upper limit H1 of water sealing liquid level, the lower limit H of water sealing liquid level is the lower limit H of water sealing liquid level, the upper limit of water draining is the liquid level H2 of water draining, and the lower limit of water draining is the safe liquid level H3. When in use, the water supplementing solenoid valve is opened to supplement water to the fire-retarding explosion venting device, the water level in the fire-retarding explosion venting device is observed through the glass tube liquid level meter 15 or the water supplementing floating ball liquid level transmitter 12, and the water supplementing is stopped when the water level reaches the upper limit of water supplementing. The liquid level in the water seal fire-retarding explosion venting device is reduced due to the change of the pressure of the fuel gas, the water carried by the fuel gas and the like, when the liquid level is reduced to the lower limit of the water supplement, the water supplement floating ball liquid level transmitter 12 transmits a signal to the control system and sends a control signal to the water supplement electromagnetic valve, and the water supplement electromagnetic valve is controlled to be opened for water supplement; when the liquid level reaches the set upper drainage limit, the drainage floating ball liquid level transmitter 11 transmits a signal to the control system and sends a control signal to the drainage electromagnetic valve, and the drainage electromagnetic valve is opened to drain water.
When the water sealing liquid level is lower than the lower limit of the water sealing liquid level, the water supplementing floating ball liquid level transmitter 12 sends out a signal to control the water supplementing valve 4 to supplement water; the drainage floating ball liquid level transmitter 11 is arranged on the upper portion of the drainage cylinder 19, the drainage pipe and the drainage electromagnetic valve 14 are arranged on the lower portion of the drainage cylinder 19, the drainage cylinder 19 is communicated with the water seal cylinder 18 through the cylinder communicating pipe 13, redundant water flows into the drainage cylinder 19 when the liquid level reaches the upper limit of water supplement, the liquid level in the drainage cylinder 19 is monitored in real time through the drainage floating ball liquid level transmitter 11 arranged on the upper portion of the drainage cylinder 19, redundant liquid in the drainage cylinder 19 is discharged by controlling the drainage electromagnetic valve to be opened when the drainage liquid level H2 is reached, drainage is stopped when the safety liquid level H3 is reached, and the position of the safety liquid level H3 can be higher than the drainage pipe.
The working process of the invention is as follows: before the use, should set up the floater liquid level changer earlier, set up moisturizing upper and lower limit to moisturizing floater liquid level changer 12, when the liquid level reaches water seal liquid level lower limit H promptly, moisturizing valve begins moisturizing, reaches water seal liquid level upper limit H1 and stops moisturizing. The reason is that the higher the water seal height is, the larger the pressure loss is, and the heavier the burden of the air extraction system is, so the water seal height should be reduced as much as possible under the condition of ensuring the safety of air transmission; the drainage floating ball liquid level transmitter 11 sets the upper and lower drainage limits of the drainage cylinder 19, namely when the liquid level reaches the drainage liquid level H2, the drainage solenoid valve starts drainage until the safe liquid level H3 is reached.
When the water supplementing electromagnetic valve is used, the water supplementing electromagnetic valve 4 is opened firstly to supplement water through the water supplementing pipe, the water supplementing level is monitored and displayed through the water supplementing level transmitter 12 or the glass pipe level meter 15, the water supplementing is stopped when the water level reaches the height of the water level, and the numerical value of the water supplementing level transmitter 12 is calibrated through the glass pipe level meter 15. When the air is introduced into the air inlet pipe 9 in the device, the liquid level in the shell 1 is basically stabilized at a required height under the influence of the internal structure and the water supplementing and draining device. The gas big bubbles are divided into uniform small bubbles through the split orifice plate 5, liquid level fluctuation is reduced, then gas is subjected to gas-liquid separation through the filter packing 3, and finally the gas flows out of the gas outlet 8 and enters back-end equipment. The water level in the shell 1 is reduced to the lower limit of the water supplement limit due to the pressure change of the gas transmission or the water carried by the gas, and the like, the liquid level in the water seal cylinder 18 is always consistent with the liquid level in the shell 1 under the action of the shell communicating pipe 17, the liquid level height is monitored in real time through the water supplement floating ball liquid level transmitter 12 arranged at the upper part of the water seal cylinder 18, signals are transmitted to the control system, and the water supplement valve is controlled to open automatic water supplement; the water higher than the upper limit of water supply in the device flows into the water seal cylinder 18 through the shell communicating pipe 17, then flows into the water drain cylinder 19 through the cylinder communicating pipe 13 between the water seal cylinder 18 and the water drain cylinder 19, the water level height in the water drain cylinder 19 is monitored in real time by the water drain floating ball liquid level transmitter 11 arranged on the upper part of the water drain cylinder 19, the water drain solenoid valve is controlled to be opened for water drain when the water drain liquid level H2 is reached, and the water drain solenoid valve is controlled to be closed for water drain when the water drain liquid level H3 is reached. When combustion or explosion occurs in the pipeline or equipment, shock waves generated by the explosion reach the explosion release pressure of the explosion release device 10, the explosion release rubber plate of the explosion release device 10 is flushed, the explosion pressure is released, meanwhile, sealing water plays roles of flame elimination and fire resistance, the combustion or explosion is prevented from being transmitted to the pipeline at the air inlet end, and the purpose of protecting the safety of the conveying pipeline at the air inlet end and auxiliary equipment is achieved.
In conclusion, the water-seal fire-retarding explosion venting device reduces liquid level disturbance factors, can greatly reduce liquid level fluctuation, effectively prevents and stops potential danger in the low-concentration gas conveying process, and has the advantages of simple structure, convenience in maintenance, high reliability and high control precision.
It should be noted that, those skilled in the art should understand that the terms "up and down", "high and low" refer to the azimuth relationship of the water seal fire-retardant explosion venting device in the normal use state.
Claims (6)
1. The utility model provides a water seal fire-retardant explosion venting device, includes casing (1), gas air inlet (2) and in the device intake pipe (9), gas outlet (8), moisturizing drainage device, explosion venting device (10) and explosion venting mouth (20) thereof to and be located the reposition of redundant personnel orifice plate (5) of setting for high, characterized by: the gas-liquid separation device is characterized in that a baffle (7) is further arranged above the split orifice plate (5) in the shell (1), the baffle (7) comprises an upper orifice plate (73), a bottom plate (71) and an inclined plate (72) connected between the upper orifice plate (73) and the bottom plate (71), one end of the inclined plate (72) is obliquely upwards close to the explosion venting port (20) from being close to the gas outlet (8), the lower end of the inclined plate (72) is relatively higher than the gas outlet (8), a water return pipe (6) is arranged on the bottom plate (71), the position of the bottom plate (71) is lower than the gas outlet (8), the outlet of the water return pipe (6) is lower than the split orifice plate (5), a gas-liquid separation cavity is formed by enclosing the shell (1), the split orifice plate (5) and the baffle (7), filtering filler (3) is filled in the gas-liquid separation cavity, and the upper part of the gas-liquid separation cavity is communicated with the gas outlet (8) and the explosion venting port (20), and a filler port (16) communicated with the gas-liquid separation cavity is arranged on the shell (1); the water replenishing and draining device is located outside the shell (1), the water replenishing and draining device comprises a water sealing cylinder (18), a draining cylinder (19) and two floating ball liquid level transmitters respectively installed in the cylinder, the water replenishing and draining device further comprises a water replenishing pipe, a water replenishing electromagnetic valve (4), a draining pipe and a draining electromagnetic valve (14), the water sealing cylinder (18) is communicated with the shell (1) through two shell communicating pipes (17) which are arranged up and down, the water replenishing and draining floating ball liquid level transmitter (12) is installed in the water sealing cylinder (18), a transmission signal of the water sealing cylinder (18) is used for controlling the water replenishing electromagnetic valve, the water sealing cylinder (18) is communicated with the draining cylinder (19) through the cylinder communicating pipe (13), the lowest position of the inner wall of the cylinder communicating pipe (13) is at the same height with the designed water sealing liquid level high limit H1, the transmission signal of the water draining floating ball liquid level transmitter (11) is installed in the draining cylinder (19), the water replenishing electromagnetic valve and the draining electromagnetic valve are all normally closed valves, when the water draining floating ball liquid level transmitter detects that the liquid level height reaches the draining liquid level H2, the draining electromagnetic valve is opened, and the draining electromagnetic valve is closed until the water level safety liquid level H3 is detected, and the water level safety liquid level H3 is reached, and H3 is smaller than or equal to 1.
2. The water seal fire-retardant explosion venting device of claim 1, wherein: the upper orifice plate (73) is positioned higher than the gas inlet (2).
3. The water seal fire-retardant explosion venting device of claim 1, wherein: the filtering filler (3) adopts PP polyhedral hollow spheres.
4. The water seal fire-retardant explosion venting device of claim 1, wherein: the filtering filler (3) adopts stainless steel wire tennis balls.
5. The water seal fire-retardant explosion venting device of claim 1, wherein: the shell (1) is also provided with a glass tube liquid level meter (15) communicated with the water seal cylinder (18).
6. A water seal fire and explosion suppression device as claimed in any one of claims 1 to 5, wherein: the split orifice plate (5) is flush with the outlet of the air inlet pipe (9) in the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191015544A (en) * | 1910-06-28 | 1911-02-02 | Heinrich Knapp | Improvements in or relating to Liquid-seal Safety Devices for Minimizing Explosions in Gas Supply Apparatus. |
| JPH02248685A (en) * | 1989-03-22 | 1990-10-04 | Ngk Insulators Ltd | Liquid seal type pump |
| CN102278133A (en) * | 2011-06-29 | 2011-12-14 | 淄博淄柴新能源有限公司 | Individual overflow water seal fire relief and explosion release device |
| CN202132064U (en) * | 2011-06-29 | 2012-02-01 | 淄博淄柴新能源有限公司 | Single type overflow water-seal flame-arresting explosion-relief device |
| CN203442804U (en) * | 2013-08-21 | 2014-02-19 | 潍坊市润捷轻工环保科技有限公司 | Air-water separator for membrane oxygen-enriched combustion supporting system of circulating fluidized bed boiler |
| CN203655344U (en) * | 2013-11-29 | 2014-06-18 | 煤科集团沈阳研究院有限公司 | Mining water-seal fire retardance and explosion venting apparatus |
| CN204344156U (en) * | 2014-12-02 | 2015-05-20 | 山西新思备科技股份有限公司 | Water-sealing fire-retardant venting of dust explosion device packing type metal shunt net |
| CN104763878A (en) * | 2015-04-17 | 2015-07-08 | 中煤科工集团重庆研究院有限公司 | Water seal fire-retardant explosion venting device |
| CN204710051U (en) * | 2015-06-16 | 2015-10-21 | 浙江纽恩洁瑞动力股份有限公司 | A kind of gas special gas separator |
| WO2015183072A1 (en) * | 2014-05-28 | 2015-12-03 | Ngltech Sdn. Bhd. | Low pressure separation system |
| WO2017090557A1 (en) * | 2015-11-25 | 2017-06-01 | 三菱日立パワーシステムズ株式会社 | Moisture separator/heater |
| CN111535786A (en) * | 2020-05-22 | 2020-08-14 | 山东理工大学 | Device and method for coal mine high-low negative pressure gas extraction mixing conveying power generation |
-
2021
- 2021-09-27 CN CN202111134981.5A patent/CN113833855B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191015544A (en) * | 1910-06-28 | 1911-02-02 | Heinrich Knapp | Improvements in or relating to Liquid-seal Safety Devices for Minimizing Explosions in Gas Supply Apparatus. |
| JPH02248685A (en) * | 1989-03-22 | 1990-10-04 | Ngk Insulators Ltd | Liquid seal type pump |
| CN102278133A (en) * | 2011-06-29 | 2011-12-14 | 淄博淄柴新能源有限公司 | Individual overflow water seal fire relief and explosion release device |
| CN202132064U (en) * | 2011-06-29 | 2012-02-01 | 淄博淄柴新能源有限公司 | Single type overflow water-seal flame-arresting explosion-relief device |
| CN203442804U (en) * | 2013-08-21 | 2014-02-19 | 潍坊市润捷轻工环保科技有限公司 | Air-water separator for membrane oxygen-enriched combustion supporting system of circulating fluidized bed boiler |
| CN203655344U (en) * | 2013-11-29 | 2014-06-18 | 煤科集团沈阳研究院有限公司 | Mining water-seal fire retardance and explosion venting apparatus |
| WO2015183072A1 (en) * | 2014-05-28 | 2015-12-03 | Ngltech Sdn. Bhd. | Low pressure separation system |
| CN204344156U (en) * | 2014-12-02 | 2015-05-20 | 山西新思备科技股份有限公司 | Water-sealing fire-retardant venting of dust explosion device packing type metal shunt net |
| CN104763878A (en) * | 2015-04-17 | 2015-07-08 | 中煤科工集团重庆研究院有限公司 | Water seal fire-retardant explosion venting device |
| CN204710051U (en) * | 2015-06-16 | 2015-10-21 | 浙江纽恩洁瑞动力股份有限公司 | A kind of gas special gas separator |
| WO2017090557A1 (en) * | 2015-11-25 | 2017-06-01 | 三菱日立パワーシステムズ株式会社 | Moisture separator/heater |
| CN111535786A (en) * | 2020-05-22 | 2020-08-14 | 山东理工大学 | Device and method for coal mine high-low negative pressure gas extraction mixing conveying power generation |
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