CN219198902U - Gas tempering preventing device - Google Patents

Abstract

The utility model discloses a gas tempering preventing device, which comprises a base, wherein one side of the top of the base is provided with an anti-reverse tank, one side of the top of the anti-reverse tank is communicated with an air inlet pipe, the inner wall of the air inlet pipe is communicated with an electromagnetic anti-explosion control valve, the other side of the top of the base is provided with a blocking tank, the blocking tank is communicated with the anti-reverse tank through an air duct, blocking liquid is arranged in the anti-reverse tank, one side of the top of the anti-reverse tank is communicated with an air outlet pipe, and the other side of the top of the anti-reverse tank is provided with a liquid filling port. The utility model relates to the technical field of gas use protection devices, and solves the problems that in the prior art, although a dry tempering stopper is convenient to use, in the long-term use process, the dry tempering stopper is easily covered with grease due to the influence of the environment of a use site, the success rate of tempering prevention is influenced, the dry tempering stopper is possibly disabled when a tempering phenomenon occurs, and serious explosion accidents are caused.

Description

Gas tempering preventing device

Technical Field

The utility model relates to the technical field of gas use protection devices, in particular to a gas tempering preventing device.

Background

The gas is a generic name of gas fuel, can burn and emit heat, has advantages of low cost, low pollution and the like, has larger application in daily life and industrial production process of residents, if the valve of the pipeline is quickly closed in the gas use process, the pressure in the pipeline can be quickly reduced, the pressure outside the pipeline is higher than the pressure in the pipeline, flame can be pressed into the pipeline to cause tempering phenomenon, if the gas pipeline lacks a tempering preventing device or the tempering preventing device is out of action, more serious casualties and property loss can be caused, in the prior art, the dry tempering preventing device is more convenient to use, but is influenced by the environment of the use site when being used for a long time in heavy greasy dirt environments such as workshop workshops, restaurant kitchens and the like, the dry tempering preventing device is easy to be covered with grease, and the dry tempering preventing device can lose action when the tempering phenomenon occurs, so that serious explosion accidents are caused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a gas tempering preventing device, which solves the problems that in the prior art, a dry tempering preventing device is convenient to use, but is easily covered with grease in the dry tempering preventing device due to the environmental influence of a use site in the long-term use process, thereby influencing the success rate of tempering prevention and possibly causing the dry tempering preventing device to lose function when a tempering phenomenon occurs and causing serious explosion accidents.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme: the utility model provides a gas tempering stop device, includes the base, top one side of base is provided with the anti-contrary jar, the top one side intercommunication of anti-contrary jar has the intake pipe, the inner wall intercommunication of intake pipe has the explosion-proof control valve of electromagnetism, the top opposite side of base is provided with blocks the jar, it is linked together with the anti-contrary jar through the air duct to block the jar, the inside of anti-contrary jar is provided with blocks the liquid, the top one side intercommunication of anti-contrary jar has the outlet duct, the top opposite side of anti-contrary jar is provided with the liquid filling mouth, the top of anti-contrary jar is provided with infrared sensor.

Preferably, the inner wall intercommunication of air duct has the check valve pipe, the inner wall of check valve pipe is close to one side that blocks the jar and is provided with the fixed plate, one side fixedly connected with gag lever post that blocks the jar is kept away from to the fixed plate, compression spring has been cup jointed to the outer wall of gag lever post, compression spring keeps away from the one end fixedly connected with movable block of fixed plate, the movable block is connected with the check valve pipe cooperation, the movable block is connected with the gag lever post cooperation, the one end that the movable block kept away from compression spring is provided with sealed convex ball, one side that the inner wall of check valve pipe is close to the anti-reverse jar is provided with the sealing washer, the sealing washer is connected with sealed convex ball cooperation, the transmission pipe has been seted up to the inside equidistance of check valve pipe, the one end that the transmission pipe is close to the sealing washer is connected with the movable block cooperation.

Preferably, the inner wall of blocking the jar is located the top fixedly connected with swash plate that blocks the liquid, swash plate and outlet duct cooperation are connected, the top fixedly connected with riser of swash plate, the water guide hole has been seted up to the bottom equidistance of riser.

Preferably, a liquid level switch is arranged on the side wall of the blocking tank, and the liquid level switch is connected with blocking liquid in a matched mode.

Preferably, the inner wall fixedly connected with hydrophobic ventilated membrane of anti-contrary jar, the top of anti-contrary jar is provided with the manometer.

The utility model provides a gas backfire preventing device. The beneficial effects are as follows: according to the gas backfire preventing device, when gas is enabled to pass through the gas guide pipe to be transmitted into the blocking tank through the matching among the anti-backfire tank, the gas inlet pipe, the electromagnetic anti-explosion control valve, the gas guide pipe, the blocking tank, blocking liquid, the gas outlet pipe and the infrared sensor, backfire is blocked through the blocking liquid when backfire problems occur, meanwhile, the infrared sensor senses temperature change in the blocking tank, sensing signals are transmitted to the controller, the controller controls the electromagnetic anti-explosion control valve to close the gas inlet pipe, input of the gas is stopped, even if greasy dirt or dust is attached to the inside of the blocking tank through the gas pipeline, backfire blocking effect of the gas backfire preventing device is not influenced, success rate of backfire prevention can be guaranteed, backfire prevention failure problem is avoided, safer protection measures are provided for gas use, and more serious explosion accidents are avoided.

Through the cooperation between check valve pipe, the fixed plate, the gag lever post, compression spring, the movable block, sealed protruding ball, sealing washer and the transfer line, when using gas, high pressure gas promotes sealed protruding ball and compresses compression spring, after relieving the seal between the sealing washer, high pressure gas continues to transmit through the transfer line, when stopping gas use or taking place the tempering and closing the gas input, gas pressure in the gas pipeline reaches the equilibrium, compression spring promotes the movable block, the transfer line shutoff, seal between sealed protruding ball and the sealing washer simultaneously, form and close the air duct, can realize in the air duct like this the unidirectional transport of gas, avoid blocking liquid to receive in the back entering the anti-reverse jar through the air duct after undulant when taking place the gas tempering.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the present utility model;

FIG. 3 is a schematic view showing the structure of the blocking tank, the blocking liquid and the inclined plate in FIG. 1;

fig. 4 is a schematic view of the structure of the moving block, the transfer pipe and the check valve pipe in fig. 1.

In the figure: 1. the anti-reverse tank, 3, the air inlet pipe, 4, the electromagnetic anti-explosion control valve, 5, the air duct, 6, the blocking tank, 7, the blocking liquid, 8, the air outlet pipe, 9, the infrared sensor, 10, the liquid filling port, 11, the one-way valve pipe, 12, the fixed plate, 13, the compression spring, 14, the movable block, 15, the sealing convex ball, 16, the sealing ring, 17, the transmission pipe, 18, the sloping plate, 19, the vertical plate, 20, the water guide hole, 21, the liquid level switch, 22, the hydrophobic and breathable film, 23, the limit rod, 24 and the pressure gauge.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the prior art, although the dry tempering stopper is convenient to use, in the long-term use process, the dry tempering stopper is influenced by the environment of a use site, grease is easily covered in the dry tempering stopper, the success rate of tempering prevention is influenced, and the dry tempering stopper possibly loses function when a tempering phenomenon occurs, so that serious explosion accidents are caused.

In view of the above, the present utility model provides a gas backfire preventing device, which is configured to prevent backfire from being transmitted into a blocking tank through an air duct when gas is caused to flow through the air duct by matching the backfire preventing tank, the air duct, the blocking tank, the blocking liquid, the air duct and the infrared sensor, and the infrared sensor senses temperature change in the blocking tank and transmits a sensing signal to a controller when backfire occurs, the controller controls the electromagnetic backfire preventing valve to close the air duct to stop gas input, and when the gas backfire preventing device is used in an environment with heavy oil stains for a long time, even if oil stains or dust is attached to the inside of the blocking tank through a gas duct, backfire preventing effect of the gas backfire preventing device is not affected, success rate of backfire prevention is ensured, and a problem of backfire preventing failure is avoided.

All electric parts and the adaptive power supply are connected through wires by the person skilled in the art, and a proper controller and encoder should be selected according to actual conditions so as to meet control requirements, specific connection and control sequence, and the electric connection is completed by referring to the following working principles in the working sequence among the electric parts, and the detailed connection means are known in the art, and mainly introduce the working principles and processes as follows, and do not describe the electric control.

As can be seen from fig. 1 to 4, a gas backfire preventing device comprises a base 1, wherein the base 1 is used for loading and protecting the gas backfire preventing device and keeping the device stable, one side of the top of the base 1 is provided with an anti-backfire tank 2, the anti-backfire tank 2 is used for preventing blocking liquid 7 from entering a gas conveying pipeline when backfire occurs, one side of the top of the anti-backfire tank 2 is communicated with an air inlet pipe 3, the air inlet pipe 3 is used for inputting gas into the backfire preventing device, the inner wall of the air inlet pipe 3 is communicated with an electromagnetic explosion-proof control valve 4, the electromagnetic explosion-proof control valve 4 is used for controlling the opening and closing of the air inlet pipe 3, the other side of the top of the base 1 is provided with a blocking tank 6, the blocking tank 6 is communicated with the anti-backfire tank 2 through an air duct 5, blocking liquid 7 is arranged in the anti-backfire tank 2, the blocking liquid 7 is used for blocking the gas when backfire occurs, one side of the top of the anti-backfire tank 2 is communicated with an air outlet pipe 8, the other side of the top of the anti-backfire tank 2 is provided with a liquid filling port 10, the top of the anti-backfire tank 2 is provided with an infrared sensor 9, and the infrared sensor 9 is used for monitoring whether the internal backfire phenomenon exists;

in the specific implementation process, it is worth particularly pointing out that the base 1 is used for loading and protecting a gas backfire preventing device, and keeping the device stable, the anti-backfire tank 2 is used for preventing blocking liquid 7 from entering a gas conveying pipeline when backfire occurs, the gas inlet pipe 3 is used for inputting gas into the backfire preventing device, the electromagnetic anti-explosion control valve 4 is used for controlling the opening and closing of the gas inlet pipe 3, the blocking liquid 7 is flame-retardant liquid and is used for blocking when backfire occurs, the backfire is prevented from entering the gas inlet pipe 3, the gas outlet pipe 8 is used for outputting gas outwards by the backfire preventing device, the infrared sensor 9 is used for monitoring whether backfire phenomenon exists inside the blocking tank 6, the liquid filling opening 10 is used for filling blocking liquid 7 into the blocking tank 6, and the matching among the anti-backfire tank 2, the gas inlet pipe 3, the electromagnetic anti-explosion control valve 4, the gas guide pipe 5, the blocking tank 6, the blocking liquid 7, the gas outlet pipe 8 and the infrared sensor 9 is used, when the fuel gas is transmitted into the blocking tank 6 through the gas guide pipe 5, when the tempering problem occurs, the tempering is blocked through the blocking liquid 7, meanwhile, the infrared sensor 9 senses the temperature change in the blocking tank 6 and transmits a sensing signal to the controller, the controller controls the electromagnetic explosion-proof control valve 4 to close the gas inlet pipe 3, and the input of the fuel gas is stopped, when the fuel gas tempering preventing device is used in a heavy-greasy environment for a long time, even if greasy dirt or dust is attached to the inside of the blocking tank 6 through a fuel gas pipeline, the tempering blocking effect of the fuel gas tempering preventing device is not influenced, the success rate of tempering prevention is ensured, the problem of tempering prevention failure is avoided, safer protection measures are provided for the use of the fuel gas, and serious explosion accidents are avoided;

further, the inner wall of the air duct 5 is communicated with a check valve pipe 11, a fixed plate 12 is arranged on one side, close to the blocking tank 6, of the inner wall of the check valve pipe 11, the fixed plate 12 is used for separating the check valve pipes and limiting the compression spring 13, a limiting rod 23 is fixedly connected to one side, far away from the blocking tank 6, of the fixed plate 12, the compression spring 13 is sleeved on the outer wall of the limiting rod 23, a moving block 14 is fixedly connected to one end, far away from the fixed plate 12, of the compression spring 13, the compression spring 13 gives the moving block 14 elasticity, the moving block 14 is connected with the check valve pipe 11 in a matched mode, the moving block 14 is connected with the limiting rod 23 in a matched mode, a sealing ring 16 is arranged on one side, close to the anti-reversion tank 2, of the inner wall of the check valve pipe 11, the sealing ring 16 is connected with the sealing convex ball 15 in a matched mode, a transmission pipe 17 is formed in the inner portion of the check valve pipe 11 in an equidistant mode, and one end, close to the sealing ring 16, of the transmission pipe 17 is connected with the moving block 14 in a matched mode;

in the specific implementation process, it is worth particularly pointing out that the fixed plate 12 is used for separating the check valve pipe and limiting the compression spring 13, the compression spring 13 gives the movable block 14 an elastic force far away from the fixed plate 12, the limiting rod 23 is used for limiting the compression spring 13 and the movable block 14, the fixed plate 12, the limiting rod 23, the compression spring 13 and the movable block 14 are matched to form a support and a limit for the movable block 14, the movable block 14 can be reset when gas use is stopped, sealing of the gas guide pipeline is realized through the matching between the sealing convex ball 15 and the sealing ring 16, sealing of the gas guide pipeline is realized through the matching between the check valve pipe 11, the fixed plate 12, the limiting rod 23, the compression spring 13, the movable block 14, the sealing convex ball 15, the sealing ring 16 and the transmission pipe 17, when gas is used, high-pressure gas enters the inside the check valve pipe 11 through the gas guide pipe 5, the sealing convex ball 15 is pushed to compress the compression spring 13, after the sealing between the sealing ball and the sealing ring 16 is released, the high-pressure gas is transmitted to the gas guide pipe 5 close to the blocking tank 6, when gas transmission is stopped, the gas guide pipeline is stopped can be reset, the gas guide pipeline is stopped or the gas guide pipeline is closed through the sealing ball 5 is closed, and the gas guide pipeline is closed when the gas guide pipeline is closed by the sealing ball 7 is closed, and the gas guide pipeline is closed by the sealing ball 5, and the reverse pressure is closed, and the reverse flow is closed by the sealing pipeline is simultaneously, and the sealing is closed by the sealing pipeline is closed by the sealing pipe 5 and the sealing pipe is closed when the sealing pipe is closed by the sealing rod and the sealing rod is closed and the sealing pipe and the sealing valve is closed;

further, an inclined plate 18 is fixedly connected to the inner wall of the blocking tank 6 above the blocking liquid 7, the inclined plate 18 is in matched connection with the air outlet pipe 8, a vertical plate 19 is fixedly connected to the top of the inclined plate 18, water guide holes 20 are formed in the bottom of the vertical plate 19 at equal intervals, and the water guide holes 20 are used for discharging the blocking liquid 7 splashed to one side of the vertical plate 19 close to the air outlet pipe 8;

in the specific implementation process, it is worth particularly pointing out that the inclined plate 18 and the vertical plate 19 are used for blocking the blocking liquid 7, so that the blocking liquid 7 is prevented from entering the air outlet pipe 8 due to splashing in the gas transmission process, the water guide holes 20 are used for discharging the blocking liquid 7 splashed to one side of the vertical plate 19 close to the air outlet pipe 8, and the blocking liquid 7 is effectively prevented from entering the air outlet pipe 8 through the cooperation among the inclined plate 18, the vertical plate 19 and the water guide holes 20, so that the blocking liquid 7 is prevented from being mixed in the conveyed gas;

further, a liquid level switch 21 is arranged on the side wall of the blocking tank 6, and the liquid level switch 21 is connected with the blocking liquid 7 in a matching way;

in a specific implementation process, it is worth particularly pointing out that the liquid level switch 21 is used for monitoring the liquid level of the blocking liquid 7, and when the liquid level of the blocking liquid 7 is lower than the liquid level switch 21, the liquid level switch 21 sends a signal to the controller to remind a user to supplement the blocking liquid 7;

further, the inner wall of the anti-reverse tank 2 is fixedly connected with a hydrophobic and breathable film 22, the hydrophobic and breathable film 22 can enable fuel gas to pass through and block liquid, and the top of the anti-reverse tank 2 is provided with a pressure gauge 24;

in a specific implementation process, it is worth particularly pointing out that the hydrophobic and breathable film 22 can enable the gas to pass through and block the liquid, so that the blocking liquid 7 is prevented from entering the inside of the anti-reverse tank 2 too much, and the pressure gauge 24 is used for monitoring the gas pressure in the anti-reverse tank 2, so that the gas pressure is prevented from being too low, and the use of equipment is prevented from being influenced;

specifically, when the gas backfire preventing device is used, the gas inlet pipe 3 and the gas outlet pipe 8 are respectively connected with a gas conveying pipeline, the gas inlet pipe 3 is a gas input end, the gas outlet pipe 8 is a gas output end, blocking liquid 7 is supplemented into the blocking tank 6 through the liquid filling port 10, the blocking liquid 7 is higher than the liquid level switch 21 and lower than the inclined plate 18 and the one-way valve pipe 11, the liquid filling port 10 is closed, the electromagnetic anti-explosion control valve 4 is controlled to open the gas inlet pipe 3, high-pressure gas is input into the anti-backfire tank 2, the gas output condition is observed at the gas use end, the gas input pressure is regulated, the installation of the gas backfire preventing device is completed, when a user uses the gas, the high-pressure gas enters the anti-backfire tank 2 through the gas inlet pipe 3, is transmitted into the gas guide pipe 5 through the hydrophobic gas permeable membrane 22, the high-pressure gas is continuously applied to the sealing convex ball 15 to the pressure close to the fixed plate 12, pushing the sealing convex ball 15 and the moving block 14 to move towards the direction close to the fixed plate 12 and compressing the compression spring 13, simultaneously releasing the sealing between the sealing convex ball 15 and the sealing ring 16, releasing the sealing of the transmission pipe 17 by the moving block 14, enabling high-pressure fuel gas to enter the gas guide pipe 5 communicated with the blocking tank 6 through the transmission pipe 17, enabling the fuel gas to be transmitted to the upper cavity of the blocking tank 6 through the blocking liquid 7 in the form of bubbles, enabling the upper cavity of the blocking tank 6 to be transmitted to the fuel gas using end through the gas outlet pipe 8, completing the transmission of the fuel gas in the tempering preventing device, enabling the blocking liquid 7 to block the tempering due to the fact that the fuel gas is transmitted in the form of bubbles inside the blocking liquid 7 when the fuel gas tempering occurs, the infrared sensor 9 detects the temperature change in the blocking tank 6 and transmits signals to the controller, the controller controls the electromagnetic explosion-proof control valve 4 to close the air inlet pipe 3, the input of high-pressure fuel gas is stopped, the air pressure in the fuel gas tempering preventing device reaches balance, the compressed compression spring 13 pushes the moving block 14 and the sealing convex ball 15 to move towards one side far away from the fixed plate 12, the moving block 14 seals the transmission pipe 17, the sealing convex ball 15 and the sealing ring 16 seal the air guide pipe 5, the blocking liquid 7 is prevented from entering the anti-backfire tank 2, the blocking of fuel gas tempering is completed, the anti-backfire tank 2, the air inlet pipe 3, the electromagnetic explosion-proof control valve 4, the air guide pipe 5, the blocking tank 6, the blocking liquid 7, the air outlet pipe 8 and the infrared sensor 9 are matched, when fuel gas is caused, the fuel gas is transmitted into the blocking tank 6 through the air guide pipe 5, when tempering is caused, the tempering problem occurs, the fuel gas is blocked through the blocking liquid 7, the temperature change in the blocking tank 6 is sensed by the infrared sensor, the sensing signal is transmitted to the controller, the controller controls the electromagnetic explosion-proof control valve 4 to close the air guide pipe 5, the fuel gas is stopped, the fuel gas is prevented from being seriously influenced by the fuel gas in the air inlet pipe, the serious explosion accident is avoided, the problem is avoided, and the serious accident is caused by the serious accident of the tempering is caused by the back condition of the back gas, and the back fire is avoided, the serious accident is caused by the serious accident, and the serious accident is caused by the back, and the serious accident, and the is caused by the when the is by the serious accident when the is by the back and the is caused by the serious accident.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A gas flashback arrestor, comprising a base (1), characterized in that: the anti-reverse tank is characterized in that an anti-reverse tank (2) is arranged on one side of the top of the base (1), an air inlet pipe (3) is communicated with one side of the top of the anti-reverse tank (2), an electromagnetic anti-explosion control valve (4) is communicated with the inner wall of the air inlet pipe (3), a blocking tank (6) is arranged on the other side of the top of the base (1), the blocking tank (6) is communicated with the anti-reverse tank (2) through an air duct (5), blocking liquid (7) is arranged in the anti-reverse tank (2), an air outlet pipe (8) is communicated with one side of the top of the anti-reverse tank (2), a liquid filling port (10) is formed in the other side of the top of the anti-reverse tank (2), and an infrared sensor (9) is arranged at the top of the anti-reverse tank (2).

2. A gas flashback arrestor as defined in claim 1, wherein: the inner wall intercommunication of air duct (5) has check valve pipe (11), one side that the inner wall of check valve pipe (11) is close to blocking jar (6) is provided with fixed plate (12), one side fixedly connected with gag lever post (23) that blocking jar (6) was kept away from to fixed plate (12), compression spring (13) have been cup jointed to the outer wall of gag lever post (23), one end fixedly connected with movable block (14) that fixed plate (12) was kept away from to compression spring (13), movable block (14) are connected with check valve pipe (11) cooperation, movable block (14) are connected with gag lever post (23) cooperation, one end that movable block (14) kept away from compression spring (13) is provided with sealed protruding ball (15), one side that the inner wall of check valve pipe (11) is close to anti-return jar (2) is provided with sealing washer (16), sealing washer (16) are connected with sealed protruding ball (15) cooperation, transmission pipe (17) have been seted up to the inside equidistance of check valve pipe (11), one end that transmission pipe (17) is close to movable block (16) cooperation is connected with movable block (14).

3. A gas flashback arrestor as defined in claim 1, wherein: the inner wall that blocks jar (6) is located the top fixedly connected with swash plate (18) that blocks liquid (7), swash plate (18) are connected with outlet duct (8) cooperation, the top fixedly connected with riser (19) of swash plate (18), water guide hole (20) have been seted up to the bottom equidistance of riser (19).

4. A gas flashback arrestor as defined in claim 1, wherein: the side wall of the blocking tank (6) is provided with a liquid level switch (21), and the liquid level switch (21) is connected with the blocking liquid (7) in a matching way.

5. A gas flashback arrestor as defined in claim 1, wherein: the inner wall fixedly connected with hydrophobic ventilated membrane (22) of anti-contrary jar (2), the top of anti-contrary jar (2) is provided with manometer (24).

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