CN212206785U - Gas explosion tube - Google Patents
Gas explosion tube Download PDFInfo
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- CN212206785U CN212206785U CN202020912222.1U CN202020912222U CN212206785U CN 212206785 U CN212206785 U CN 212206785U CN 202020912222 U CN202020912222 U CN 202020912222U CN 212206785 U CN212206785 U CN 212206785U
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Abstract
The utility model provides a coal gas explosion cylinder, belonging to the technical field of metallurgical casting, comprising a cylinder body, a piston, a pull rod, a plugging piece, a first air inlet pipe, a second air outlet pipe and a spark plug, wherein one end of the cylinder body is open, and the other end is closed; the closed end is provided with a first air outlet pipe, and a first valve is arranged on the first air outlet pipe; the piston is arranged in the cylinder; one end of the pull rod is connected with the piston rod, and the other end of the pull rod penetrates through the closed end of the cylinder; the plugging piece is detachably arranged at the opening end of the cylinder body; one end of the first air inlet pipe is connected with a sampling port of the gas pipeline, the other end of the first air inlet pipe penetrates through the plugging piece, and a second valve is arranged on the first air inlet pipe; one end of the second air outlet pipe is connected with the air collecting piece, the other end of the second air outlet pipe penetrates through the plugging piece, and a third valve is arranged on the second air outlet pipe; the spark plug is arranged on the side wall of the barrel body close to the opening end. The utility model provides a coal gas outburst section of thick bamboo takes a sample through the mode of extraction, has reduced leaking of coal gas, and the coal gas of extraction is comparatively pure, does not influence the coal gas outburst test.
Description
Technical Field
The utility model belongs to the technical field of metallurgical casting, more specifically say, relate to a coal gas outbreak section of thick bamboo.
Background
After the maintenance work of the gas system is finished and before a user uses the gas, a gas explosion test needs to be carried out to check the purity of the gas. When the explosion experiment is done to original coal gas explosion section of thick bamboo, need two people's cooperation operation, alone control the sampling tube usually, the explosion section of thick bamboo after alone with the hand seal sample, it is sealed tight, operating personnel closely contacts the coal gas danger source, easily causes coal gas poisoning, runs into narrow and small space, and the circulation of air is slow, still forms explosive gas easily, has the potential safety hazard. Because the explosion cylinder is not tightly sealed, the error of the experimental result is larger when the coal gas with low heat value is subjected to an explosion test.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coal gas outburst section of thick bamboo, aim at solving the not tight technical problem of current coal gas outburst section of thick bamboo seal.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a gas explosion cartridge comprising:
a cylinder with one end open and the other end closed; the closed end is provided with a first air outlet pipe, and a first valve is arranged on the first air outlet pipe;
the piston is arranged in the cylinder and is in sliding connection with the inner wall of the cylinder;
one end of the pull rod is connected with the piston rod, the other end of the pull rod penetrates through the closed end of the cylinder, and the piston is driven to move along the axial direction of the cylinder by axially drawing the pull rod;
the plugging piece is detachably arranged at the opening end of the cylinder body and is used for plugging the opening of the cylinder body;
one end of the first air inlet pipe is used for being connected with a sampling port of a gas pipeline, the other end of the first air inlet pipe penetrates through the plugging piece and is communicated with the inside of the cylinder, and a second valve is arranged on the first air inlet pipe;
one end of the second air outlet pipe is connected with the air collecting piece, the other end of the second air outlet pipe penetrates through the plugging piece and is communicated with the inside of the cylinder body, and a third valve is arranged on the second air outlet pipe;
and the spark plug is arranged on the side wall of the cylinder body close to the opening end and used for igniting the coal gas in the cylinder body.
As another embodiment of this application, the inside interval of shutoff piece is equipped with the confession the first through-hole of the passing through of first intake pipe and confession the second through-hole that the second outlet duct passes through, the inner wall of first through-hole with the outer wall sealing connection of first intake pipe, the inner wall of second through-hole with the outer wall sealing connection of second outlet duct.
As another embodiment of the present application, the gas collecting member includes a balloon.
As another embodiment of this application, the blind end of barrel is equipped with the second intake pipe, the one end intercommunication nitrogen gas jar of second intake pipe, the other end with the inside intercommunication of barrel, be equipped with the fourth valve in the second intake pipe.
As another embodiment of the present application, the side wall of the barrel is provided with a receiving groove for receiving the spark plug, the receiving groove being in communication with the interior of the barrel.
As another embodiment of the application, the outer wall of the barrel is provided with a handle, a power supply for supplying power to the spark plug and a switch for controlling the spark plug are arranged inside the handle, and the switch is electrically connected with the spark plug and the power supply respectively.
As another embodiment of the present application, a ball valve is disposed on the cylinder near the closed end, and when the ball valve is in an open state, an inner surface of a valve core of the ball valve is coplanar with an inner surface of the cylinder, so that the piston passes through the valve core.
As another embodiment of the present application, a diameter of the ball valve spool is smaller than a length of the piston, so that when the piston slides in the cylinder, a side wall of the piston is always in contact with an inner wall of the cylinder.
As another embodiment of the application, a limiting boss for axially limiting the piston is arranged on the inner wall of the cylinder between the ball valve and the closed end and used for limiting the maximum retraction distance of the piston.
As another embodiment of this application, the outside of the blind end of barrel is equipped with the confession the sleeve pipe that the pull rod passed, the sleeve pipe with the inside intercommunication of barrel, sheathed tube inner wall sets up a plurality of sealing washers along length direction interval.
The utility model provides a coal gas outburst section of thick bamboo's beneficial effect lies in: compared with the prior art, the gas explosion cylinder of the utility model opens the first valve on the first gas outlet pipe, pushes the piston to the opening end of the cylinder body through the pull rod until one end surface of the piston is attached to the plugging piece; connecting the first gas inlet pipe with a sampling port of a gas pipeline, opening a valve of the sampling port of the gas pipeline and a second valve, pulling a piston to the closed end of the cylinder through a pull rod, forming negative pressure between the open end of the cylinder and the piston, and pumping gas in the gas pipeline into the cylinder through the first gas inlet pipe;
the gas entering the cylinder is mixed with air in the first gas inlet pipe and the sampling port of the gas pipeline at the beginning, so that the gas is impure, after the piston moves for a certain distance, the second valve is closed, the third valve of the second gas outlet pipe is opened, the piston is pushed towards the opening end of the cylinder, the gas in the cylinder is injected into the gas collecting piece through the second gas outlet pipe, the second valve is opened after the third valve is closed, the piston is pulled towards the closed end of the cylinder, the gas in the gas pipeline is pumped into the cylinder until the piston is pulled to the closed end of the cylinder, and the cylinder is filled with the gas;
and closing the second valve, separating the first air inlet pipe from a sampling port of the gas pipeline, transferring the cylinder to a vacant position, taking the plugging piece down from the opening end of the cylinder, igniting the gas in the cylinder from the opening end of the cylinder through a spark plug, observing the combustion condition of flame in the cylinder, and determining whether the gas explosion test is qualified.
During the coal gas explosion test, sampling is carried out in an extraction mode, and coal gas is directly pumped into the cylinder through the first inlet pipe to prevent the coal gas from leaking; by means of automatic ignition of the spark plug, the time from taking off the plugging piece to igniting the coal gas is reduced, the leakage of the coal gas is reduced, and the impure coal gas caused by the air entering the cylinder is also reduced; firstly, the coal gas, the first air inlet pipe and the air of the sampling port of the coal gas pipeline are pumped into the cylinder, then the coal gas mixed with the air is discharged into the air collecting piece through the second air outlet pipe, and then the coal gas is pumped into the cylinder again, wherein the pumped coal gas is pure, and the coal gas explosion test is not influenced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a gas explosion cylinder according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a gas explosion cylinder according to another embodiment of the present invention;
in the figure: 1. a barrel; 2. a first air outlet pipe; 21. a first valve; 3. a piston; 4. a pull rod; 5. a blocking member; 6. a first intake pipe; 61. a second valve; 7. a second air outlet pipe; 71. a third valve; 8. a gas collecting member; 9. a spark plug; 10. a second intake pipe; 101. a fourth valve; 11. a nitrogen tank; 12. accommodating grooves; 13. a handle; 131. a power source; 132. a switch; 14. a ball valve; 15. a limiting boss; 16. a sleeve.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, a gas explosion cylinder provided by the present invention will now be described. The coal gas explosion cylinder comprises a cylinder body 1, a piston 3, a pull rod 4, a plugging piece 5, a first air inlet pipe 6, a second air outlet pipe 7 and a spark plug 9; one end of the cylinder body 1 is open, is an open end, the other end is closed, is a closed end, the closed end is provided with a first air outlet pipe 2, and the first air outlet pipe 2 is provided with a first valve 21; the piston 3 is arranged inside the cylinder 1 and is in sliding connection with the inner wall of the cylinder 1, one end of the pull rod 4 is connected with the piston 3, the other end of the pull rod penetrates through the closed end of the cylinder 1 and then extends out of the cylinder 1, and the piston 3 is driven to move axially along the cylinder 1 inside the cylinder 1 by axially drawing the pull rod 4; the plugging piece 5 is arranged at the opening end of the cylinder body 1, can be detached relative to the cylinder body 1 and is used for plugging the opening of the cylinder body 1, one end of the first air inlet pipe 6 is connected with a sampling port of a gas pipeline, the other end of the first air inlet pipe penetrates through the plugging piece 5 and then is communicated with the interior of the cylinder body 1, and the first air inlet pipe 6 is provided with a second valve 61; one end of the second air outlet pipe 7 is connected with the air collecting piece 8, the other end of the second air outlet pipe penetrates through the plugging piece 5 and then is communicated with the inside of the cylinder 1, and a third valve 71 is arranged on the second air outlet pipe 7; the spark plug 9 is arranged on the side wall of the cylinder body 1 close to the opening end and communicated with the interior of the cylinder body 1, and when the cylinder body 1 is filled with coal gas, the coal gas in the cylinder body 1 can be ignited through the spark plug 9.
Compared with the prior art, the coal gas explosion cylinder provided by the utility model has the advantages that the first valve 21 on the first air outlet pipe 2 is opened, the piston 3 is pushed to the opening end of the cylinder body 1 through the pull rod 4 until one end face of the piston 3 is attached to the plugging piece 5; connecting a first gas inlet pipe 6 with a sampling port of a gas pipeline, opening a valve of the sampling port of the gas pipeline and a second valve 61, pulling a piston 3 to the closed end of a cylinder 1 through a pull rod 4, forming negative pressure between the open end of the cylinder 1 and the piston 3, and pumping gas in the gas pipeline into the cylinder 1 through the first gas inlet pipe 6;
because the gas entering the cylinder 1 at the beginning is mixed with the air in the first air inlet pipe 6 and the sampling port of the gas pipeline, so that the gas is impure, after the piston 3 moves for a certain distance, the second valve 61 is closed, the third valve 71 of the second air outlet pipe 7 is opened, the piston 3 is pushed towards the opening end of the cylinder 1, the gas in the cylinder 1 is injected into the gas collecting piece 8 through the second air outlet pipe 7, the piston 3 is pulled towards the closed end of the cylinder 1 after the third valve 71 is closed, the second valve 61 is opened, the gas in the gas pipeline is pumped into the cylinder 1 until the piston 3 is pulled to the closed end of the cylinder 1, and the cylinder 1 is filled with the gas;
closing the second valve 61, separating the first air inlet pipe 6 from the sampling port of the gas pipeline, transferring the cylinder 1 to an open place, taking the plugging piece 5 off the opening end of the cylinder 1, igniting the gas in the cylinder 1 from the opening end of the cylinder 1 through the spark plug 9, observing the combustion condition of the flame in the cylinder 1, and determining whether the gas explosion test is qualified.
During the coal gas explosion test, sampling is carried out in an extraction mode, and coal gas is directly pumped into the cylinder 1 through the first inlet pipe to prevent the coal gas from leaking; by means of automatic ignition of the spark plug 9, the time from taking off the plugging piece 5 to igniting the coal gas is reduced, the leakage of the coal gas is reduced, and the impure coal gas caused by the air entering the cylinder 1 is also reduced; firstly, the coal gas, the first air inlet pipe 6 and the air of the sampling port of the coal gas pipeline are pumped into the cylinder body 1, then the coal gas mixed with the air is discharged into the air collecting piece 8 through the second air outlet pipe 7, then the coal gas is pumped into the cylinder body 1 again, and the pumped coal gas is pure and does not influence the coal gas explosion test.
As a specific implementation manner of the gas explosion cylinder provided by the present invention, please refer to fig. 1 and fig. 2, the internal space of the plugging piece 5 is provided with a first through hole for the first air inlet pipe 6 to pass through and a second through hole for the second air outlet pipe 7 to pass through, the inner wall of the first through hole is connected with the outer wall of the first air inlet pipe 6 in a sealing manner, and the inner wall of the second through hole is connected with the outer wall of the second air outlet pipe 7 in a sealing manner. After the plugging member 5 plugs the open end of the cylinder 1, the second valve 61 and the third valve 71 are closed, and the inside of the cylinder 1 is isolated from the outside.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and 2, the gas collecting member 8 is a balloon, the balloon in the initial state is in the original non-inflated state, the gas in the gas pipeline and the air in the first gas inlet pipe 6 are pumped into the cylinder 1 through the piston 3, then the second valve 61 is closed, the third valve 71 is opened, the gas mixed with air in the cylinder 1 is injected into the balloon through the piston 3, the balloon is inflated and expanded, the discharge of the gas in the cylinder 1 is not affected, the piston 3 is pushed to the joint with the blocking member 5, the third valve 71 is closed, and the balloon is taken down.
As a specific implementation of the embodiment of the utility model, refer to fig. 1 and fig. 2, the blind end of barrel 1 is equipped with second intake pipe 10, the one end intercommunication nitrogen gas jar 11 of second intake pipe 10, the other end communicates with the inside of barrel 1, be equipped with fourth valve 101 in the second intake pipe 10, before extracting coal gas in the barrel 1, the laminating of shutoff piece 5 of piston 3 and the open end of barrel 1, open fourth valve 101 and first valve 21 simultaneously, nitrogen gas in the nitrogen gas jar 11 is rushed into in the barrel 1, all discharge the air in the barrel 1, when extracting coal gas through piston 3, barrel 1 does not have the air to exist all the time, avoid the air in the barrel 1 to pass through the opposite side that piston 3 got into piston 3, mix with coal gas, influence the outburst test.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 2, the side wall of the cylinder 1 is provided with the holding tank 12 for holding the spark plug 9, the holding tank 12 is communicated with the inside of the cylinder 1, the spark plug 9 is disposed in the holding tank 12, which does not affect the movement of the piston 3, and does not affect the plugging of the plugging piece 5 to the opening end of the cylinder 1.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 2, the outer wall of the barrel 1 is provided with a handle 13, the inside of the handle 13 is provided with a power source 131 for supplying power to the spark plug 9 and a switch 132 for controlling the spark plug 9, the switch 132 is electrically connected to the spark plug 9 and the power source 131, the switch 132 on the handle 13 controls the ignition of the spark plug 9, and the ignition operation is realized in the moment of taking off the plugging piece 5.
Referring to fig. 2, as a specific implementation manner of the embodiment of the present invention, a ball valve 14 is disposed on the cylinder 1 near the closed end, and when the ball valve 14 is in an open state, the inner surface of the spool of the ball valve 14 is coplanar with the inner surface of the cylinder 1, so that the piston 3 passes through the spool, when gas is pumped into the cylinder 1 through the piston 3, the ball valve 14 is in an open state, the aperture of the valve core of the ball valve 14 is the same as the inner diameter of the cylinder 1, the piston 3 can smoothly pass through the valve core of the ball valve 14, after the piston 3 passes through the valve core of the ball valve 14, the ball valve 14 is closed, a sealed space is formed between the ball valve 14 and the plugging piece 5, when a gas explosion test is carried out, the plugging piece 5 is opened, the spark plug 9 is used for igniting coal gas, the coal gas is burnt to the ball valve 14 from the opening end of the cylinder body 1, the ball valve 14 isolates flame from the piston 3, the function of protecting the piston 3 is achieved, and the piston 3 is prevented from being burnt by the flame.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2, the diameter of the valve core of the ball valve 14 is smaller than the length of the piston 3, so that when the piston 3 slides in the cylinder 1, the side wall of the piston 3 always contacts with the inner wall of the cylinder 1, the sealing performance of the cylinder 1 between the piston 3 and the plugging piece 5 is ensured, and the gas is prevented from leaking to the other side of the piston 3 through the ball valve 14 and leaking from the first gas outlet pipe 2.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2, the inner wall of the cylinder 1 is provided with a limit boss 15 axially limiting the piston 3 between the ball valve 14 and the closed end for limiting the maximum retraction distance of the piston 3, and preventing the piston 3 from contacting with the end portions of the first air outlet pipe 2 and the second air inlet pipe 10 after reaching the closed end of the cylinder 1, so as to cause the position deviation of the piston 3, and further cause the gas leakage.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, a sleeve 16 for the pull rod 4 to pass through is disposed outside the closed end of the cylinder 1, the sleeve 16 is communicated with the inside of the cylinder 1, a plurality of sealing rings are disposed on the inner wall of the sleeve 16 along the length direction at intervals, and it is ensured that the air on the right side of the piston 3 in the cylinder 1 is only discharged from the first air outlet pipe 2.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A gas explosion cartridge, comprising:
a cylinder with one end open and the other end closed; the closed end is provided with a first air outlet pipe, and a first valve is arranged on the first air outlet pipe;
the piston is arranged in the cylinder and is in sliding connection with the inner wall of the cylinder;
one end of the pull rod is connected with the piston rod, the other end of the pull rod penetrates through the closed end of the cylinder, and the piston is driven to move along the axial direction of the cylinder by axially drawing the pull rod;
the plugging piece is detachably arranged at the opening end of the cylinder body and is used for plugging the opening of the cylinder body;
one end of the first air inlet pipe is used for being connected with a sampling port of a gas pipeline, the other end of the first air inlet pipe penetrates through the plugging piece and is communicated with the inside of the cylinder, and a second valve is arranged on the first air inlet pipe;
one end of the second air outlet pipe is connected with the air collecting piece, the other end of the second air outlet pipe penetrates through the plugging piece and is communicated with the inside of the cylinder body, and a third valve is arranged on the second air outlet pipe;
and the spark plug is arranged on the side wall of the cylinder body close to the opening end and used for igniting the coal gas in the cylinder body.
2. The gas explosion cartridge of claim 1, wherein a first through hole for passing the first gas inlet pipe and a second through hole for passing the second gas outlet pipe are provided at intervals inside the blocking member, an inner wall of the first through hole is hermetically connected with an outer wall of the first gas inlet pipe, and an inner wall of the second through hole is hermetically connected with an outer wall of the second gas outlet pipe.
3. The gas explosion cartridge of claim 1, wherein said gas collecting member comprises a balloon.
4. The gas explosion cartridge of claim 1, wherein a second gas inlet pipe is provided at the closed end of the cartridge body, one end of the second gas inlet pipe is communicated with the nitrogen tank, the other end is communicated with the inside of the cartridge body, and a fourth valve is provided on the second gas inlet pipe.
5. The gas explosion cartridge of claim 1, wherein a side wall of said cartridge body is provided with a receiving groove for receiving said spark plug, said receiving groove communicating with the interior of said cartridge body.
6. The gas explosion cartridge of claim 5, wherein a handle is provided on an outer wall of said cartridge body, and a power source for supplying power to said spark plug and a switch for controlling said spark plug are provided inside said handle, said switch being electrically connected to said spark plug and said power source, respectively.
7. The gas explosion cartridge of any one of claims 1 to 6 wherein said cartridge body has a ball valve adjacent the closed end, the inner surface of the core of said ball valve being coplanar with the inner surface of said cartridge body when said ball valve is in the open position to allow said piston to pass through said core.
8. The gas explosion cartridge of claim 7 wherein the diameter of said ball valve spool is less than the length of said piston such that the side walls of said piston are always in contact with the inside wall of said cartridge as said piston slides within said cartridge.
9. The gas explosion cartridge of claim 7 wherein said inner wall of said cartridge body is provided with a stop boss between said ball valve and said closed end for axially limiting said piston for limiting the maximum retraction distance of said piston.
10. The gas explosion cartridge of claim 1, wherein a sleeve is provided outside the closed end of the cartridge body for the pull rod to pass through, the sleeve is communicated with the inside of the cartridge body, and a plurality of sealing rings are provided at intervals along the length direction on the inner wall of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020912222.1U CN212206785U (en) | 2020-05-26 | 2020-05-26 | Gas explosion tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020912222.1U CN212206785U (en) | 2020-05-26 | 2020-05-26 | Gas explosion tube |
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| Publication Number | Publication Date |
|---|---|
| CN212206785U true CN212206785U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020912222.1U Active CN212206785U (en) | 2020-05-26 | 2020-05-26 | Gas explosion tube |
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| Country | Link |
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| CN (1) | CN212206785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109087A (en) * | 2021-03-25 | 2021-07-13 | 上海乐纯生物技术有限公司 | Aseptic leak-proof sampling valve for medicine production |
-
2020
- 2020-05-26 CN CN202020912222.1U patent/CN212206785U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109087A (en) * | 2021-03-25 | 2021-07-13 | 上海乐纯生物技术有限公司 | Aseptic leak-proof sampling valve for medicine production |
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