CN209800818U

CN209800818U - Natural gas connection control valve

Info

Publication number: CN209800818U
Application number: CN201920377636.6U
Authority: CN
Inventors: 不公告发明人
Original assignee: Hangzhou Weihe Control Instrument Co Ltd
Current assignee: Hangzhou Weihe Control Instrument Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2019-12-17
Anticipated expiration: 2029-03-25

Abstract

The utility model discloses a natural gas connection control valve, including the valve body, the upper end of valve body is connected with the rotation control mouth, the upper end fixedly connected with handle connector of rotation control mouth, the one end fixedly connected with twist grip of handle connector, the actuation is connected with the test box on the outside valve body of rotation control mouth, and the both ends symmetric connection of valve body has air inlet and gas outlet, one side fixedly connected with round platform pipe of air inlet. This natural gas connection control valve all is connected with round platform pipe and fixed cover on air inlet and gas outlet, through fastening bolt connection round platform pipe and fixed cover for natural gas pipe and valve body, sealing washer and fixed cover play two-layer sealed effect, connect inseparabler, guarantee sealed effect, connect the test box on the valve body in addition, first sensor is used for detecting whether the rotation control mouth leaks, first sensor is close apart from the rotation control mouth, simultaneously again in the test box, improve the test and detect the accuracy.

Description

Natural gas connection control valve

Technical Field

The utility model relates to a natural gas technology field specifically is a natural gas connection control valve.

Background

The natural gas is mainly used as fuel, can be used for producing carbon black, chemicals and liquefied petroleum gas, and the propane and butane produced by the natural gas are important raw materials of modern industry. Natural gas is composed mainly of gaseous low molecular hydrocarbons mixed with non-hydrocarbon gases. However, the existing natural gas valve has certain defects when being used: the household natural gas valve can only control the opening and closing of natural gas, cannot detect leakage of the natural gas, and is not provided with an alarm device.

Chinese patent CN207421493U discloses a household natural gas detection control valve, which comprises a control valve, one side of the control valve is provided with a gas inlet, the other side of the control valve is provided with a connector, the upper end of the control valve is provided with a rotary control port, the upper end of the rotary control port is provided with a handle, one side of the connector away from the control valve is provided with a detection box, the utility model discloses an installation of the detection box at one end of the control valve, the detection box is provided with a first sensor and a second sensor, whether there is leakage problem in natural gas is effectively detected in real time, the user is reminded to check closing and replacing in time, and the use safety is improved; the utility model discloses a through inside sensor of controller control and loudspeaker, with first sensor and second sensor detection signal processing, send the police dispatch newspaper sound through loudspeaker, remind user natural gas control flap's behaviour in use in real time, avoid the emergence of calamity.

Although this application has solved the problem in the background art to a certain extent, gas inlet and gas outlet connected mode are simple in this application, gas leakage appears easily, first sensor is arranged in the gas flow tube, whether close inseparable for detecting the valve, in actual operation, even the valve is closed inseparable, still can have certain surplus natural gas in the gas flow tube, influence the judgement of first sensor, the second sensor has certain distance and difference in height apart from the rotation control mouth in addition, if there is certain interference factor in the external world, can not effectively test.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a natural gas connection control valve has firm in connection, and convenient the detection, the problem among the prior art has been solved to the advantage of in time reporting to the police.

In order to achieve the above object, the utility model provides a following technical scheme: a natural gas connection control valve comprises a valve body, wherein a rotary control port is connected to the upper end of the valve body, a handle connector is fixedly connected to the upper end of the rotary control port, a rotary handle is fixedly connected to one end of the handle connector, a test box is connected to the valve body outside the rotary control port in an attraction manner, an air inlet and an air outlet are symmetrically connected to two ends of the valve body, a round platform pipe is fixedly connected to one side of the air inlet, a fixing plate is fixedly connected to the periphery of the round platform pipe close to one end of the valve body, bolt holes are symmetrically formed in two sides of the fixing plate, a fixing sleeve is sleeved at the other end of the round platform pipe, a central hole is formed in the fixing sleeve, a natural gas pipe penetrates through the central hole, mounting blocks are symmetrically connected to two sides of the fixing sleeve, fastening bolts penetrate through the mounting blocks, the lower extreme fixedly connected with magnet of test box has seted up vertical spout on the outer wall of test box, has seted up the movable groove on the test box of vertical spout upper end, and the movable groove is linked together with vertical spout, and the inside upper end fixed link of test box has first sensor, the air intake has been seted up to one side of control box, and the air outlet has been seted up to the opposite side of control box, all is connected with the dust screen on the inner wall of air intake and air outlet, and fixed mounting has negative-pressure air fan on the inner wall that the control box is close to the air intake, and loudspeaker are installed to the upper end of control box inner wall, install the second sensor in the control box of loudspeaker one side, and lower extreme in the control box is connected with circuit board and controller, controller and circuit board electric connection, the circuit board.

preferably, the width of the vertical sliding groove is matched with the width of the handle connecting body.

Preferably, the length of the movable groove is matched with the movable path of the handle connecting body, and the handle connecting body penetrates through the movable groove.

Preferably, the air outlet and the air inlet are identical in structure.

Preferably, the aperture of the central hole is matched with that of the natural gas pipe, a sealing ring is sleeved at one end of the natural gas pipe, which is arranged in the fixing sleeve, and the outer wall of the sealing ring is contacted with the inner wall of the circular truncated cone pipe.

preferably, the circular truncated cone pipe is a circular truncated cone-shaped structure, the inner wall of the fixing sleeve is matched with the circular truncated cone pipe, and stepped clamping grains are formed in the surface, in contact with the circular truncated cone pipe, of the fixing sleeve.

Compared with the prior art, the beneficial effects of the utility model are as follows:

This natural gas connection control valve, all be connected with round platform pipe and fixed cover on air inlet and gas outlet, connect round platform pipe and fixed cover through fastening bolt, make natural gas pipe and valve body, sealing washer and fixed cover play two-layer sealed effect, it is inseparabler to connect, guarantee sealed effect, connect the test box on the valve body in addition, first sensor is used for detecting whether the rotation control mouth leaks, first sensor is close apart from the rotation control mouth, simultaneously in the test box again, improve the test and detect the accuracy, the second sensor cooperation negative pressure air fan uses, accelerate the air flow, improve detection efficiency, in time discover the problem, take measures, reduce the potential safety hazard, and the test box is detachable, reduce the replacement cost.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

Fig. 2 is a structural view of the fixing sleeve of the present invention;

FIG. 3 is a structural diagram of the test box of the present invention;

Fig. 4 is an enlarged view of a-a of the present invention.

in the figure: 1. a valve body; 11. a rotation control port; 12. a handle connector; 13. rotating the handle; 2. an air inlet; 21. a circular truncated cone tube; 22. a fixing plate; 221. bolt holes; 23. fixing a sleeve; 231. a central bore; 232. mounting blocks; 24. fastening a bolt; 241. locking the nut; 25. a seal ring; 3. an air outlet; 4. a test cartridge; 41. a magnet; 42. a vertical chute; 43. a movable groove; 44. a first sensor; 5. a natural gas pipe; 6. a control box; 61. an air inlet; 62. an air outlet; 63. a dust screen; 64. a negative pressure fan; 65. a horn; 66. a second sensor; 67. a circuit board; 68. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a natural gas connection control valve comprises a valve body 1, a rotation control port 11 is connected to the upper end of the valve body 1, a handle connector 12 is fixedly connected to the upper end of the rotation control port 11, a rotation handle 13 is fixedly connected to one end of the handle connector 12, the valve body 1 outside the rotation control port 11 is controlled to be opened and closed by the rotation handle 13, a test box 4 is connected to the outer side of the valve body 1 in a suction manner, an air inlet 2 and an air outlet 3 are symmetrically connected to the two ends of the valve body 1, the air outlet 3 and the air inlet 2 have the same structure, a circular truncated cone pipe 21 is fixedly connected to one side of the air inlet 2, a fixing plate 22 is fixedly connected to the outer periphery of the circular truncated cone pipe 21 near one end of the valve body 1, bolt holes 221 are symmetrically formed on the two sides of the, when the test box is connected with the fixed sleeve 23, the extrusion is tighter, the inner wall of the fixed sleeve 23 is matched with the circular truncated cone pipe 21, the surface of the fixed sleeve 23, which is contacted with the circular truncated cone pipe 21, is provided with step-shaped clamping grains to increase the clamping tightness, the fixed sleeve 23 is provided with a central hole 231, the central hole 231 is penetrated with the natural gas pipe 5, the aperture of the central hole 231 is matched with the natural gas pipe 5, one end of the natural gas pipe 5, which is arranged inside the fixed sleeve 23, is sleeved with a sealing ring 25, the outer wall of the sealing ring 25 is contacted with the inner wall of the circular truncated cone pipe 21, the sealing ring 25 and the fixed sleeve 23 play a role of double sealing to optimize the sealing effect, the two sides of the fixed sleeve 23 are symmetrically connected with mounting blocks 232, the mounting blocks 232 are penetrated with fastening bolts 24, one ends of the fastening bolts 24 are penetrated with bolt, the lower end of the test box 4 is fixedly connected with a magnet 41, the magnet 41 is connected with the valve body 1 in an attracting way, the test box 4 can be disassembled, when the valve body 1 needs to be replaced, the test box 4 can be continuously used, the cost is saved, the outer wall of the test box 4 is provided with a vertical sliding groove 42, the width of the vertical sliding groove 42 is matched with the width of the handle connector 12, the vertical sliding groove 42 is used for installing the test box 4, the test box 4 at the upper end of the vertical sliding groove 42 is provided with a movable groove 43, the movable groove 43 is communicated with the vertical sliding groove 42, the length of the movable groove 43 is matched with the movable path of the handle connector 12, the handle connector 12 penetrates through the movable groove 43, the handle connector 12 moves in the movable groove 43, the upper end inside the test box 4 is fixedly connected with a first sensor 44, the first sensor 44 is used for detecting whether the rotary control port, meanwhile, in the test box 4, the test detection accuracy is improved, one side of the control box 6 is provided with an air inlet 61, the other side of the control box 6 is provided with an air outlet 62, the inner walls of the air inlet 61 and the air outlet 62 are both connected with a dust screen 63 for preventing dust from entering, a negative pressure fan 64 is fixedly arranged on the inner wall of the control box 6 close to the air inlet 61, the upper end of the inner wall of the control box 6 is provided with a loudspeaker 65, a second sensor 66 is arranged in the control box 6 at one side of the loudspeaker 65, the lower end in the control box 6 is connected with a circuit board 67 and a controller 68, the controller 68 is electrically connected with the circuit board 67, the circuit board 67 is respectively and electrically connected with the first sensor 44, the negative pressure fan 64, the loudspeaker 65 and the second sensor 66, when the valve is closed, if the valve is not closed, the use end of natural gas is certainly leaked, the negative pressure, the air flow is accelerated, the air enters the control box 6, and the second sensor 66 detects whether the natural gas leaks or not, so that the detection efficiency is accelerated.

The working process is as follows: before use, one end of a natural gas pipe 5 is inserted into a central hole 231, a sealing ring 25 is sleeved on one end of the natural gas pipe 5 arranged in a fixing sleeve 23 and inserted into a circular truncated cone pipe 21, the circular truncated cone pipe 21 is clamped with the fixing sleeve 23 and fixed through a fastening bolt 24 and a locking nut 241, a test box 4 is installed after the natural gas pipe 5 is connected, a vertical sliding groove 42 is sleeved on a handle connecting body 12 and pushed downwards to push the test box 4 until a magnet 41 is connected with a valve body 1 in an attracting mode, the handle connecting body 12 is arranged in a movable groove 43, a first sensor 44 is used for detecting whether a rotary control port 11 leaks or not, a second sensor 66 is used for detecting whether the valve is closed or the connecting end leaks or not, if the valve is not closed or the connecting end of the valve leaks, leaked natural gas exists in a used space, and when a negative pressure fan 64 works, negative, air enters the control box 6, the second sensor 66 detects whether natural gas leaks, and the controller 68 controls the horn 65 to alarm once natural gas is detected by the first sensor 44 or the second sensor 66.

In summary, the following steps: this natural gas connection control valve, all be connected with round platform pipe 21 and fixed cover 23 on air inlet 2 and gas outlet 3, connect round platform pipe 21 and fixed cover 23 through fastening bolt 24, make natural gas pipe 5 and valve body 1, sealing washer 25 and fixed cover 23 play two-layer sealed effect, it is inseparabler to connect, guarantee sealed effect, connect test box 4 on valve body 1 in addition, first sensor 44 is used for detecting whether rotary control mouth 11 leaks, first sensor 44 is close apart from rotary control mouth 11, simultaneously again in test box 4, improve the test and detect the accuracy, second sensor 66 cooperates negative-pressure air fan 64 to use, accelerate the air flow, improve detection efficiency, in time discover the problem, take the solution, reduce the potential safety hazard, and test box 4 is detachable, reduce the replacement cost.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

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

Claims

1. The utility model provides a natural gas connection control valve, includes valve body (1), its characterized in that: the upper end of the valve body (1) is connected with a rotary control port (11), the upper end of the rotary control port (11) is fixedly connected with a handle connector (12), one end of the handle connector (12) is fixedly connected with a rotary handle (13), the valve body (1) outside the rotary control port (11) is connected with a test box (4) in a suction manner, the two ends of the valve body (1) are symmetrically connected with an air inlet (2) and an air outlet (3), one side of the air inlet (2) is fixedly connected with a circular truncated cone pipe (21), the periphery of one end, close to the valve body (1), of the circular truncated cone pipe (21) is fixedly connected with a fixing plate (22), bolt holes (221) are symmetrically formed in the two sides of the fixing plate (22), a fixing sleeve (23) is sleeved at the other end of the circular truncated cone pipe (21), a center hole (231), the both sides symmetric connection of fixed cover (23) has installation piece (232), has run through fastening bolt (24) on installation piece (232), and the one end of fastening bolt (24) runs through bolt hole (221) and the meshing is connected with lock nut (241), the upper end fixedly connected with control box (6) of test box (4), the lower extreme fixedly connected with magnet (41) of test box (4), has seted up vertical spout (42) on the outer wall of test box (4), has seted up movable groove (43) on test box (4) of vertical spout (42) upper end, and movable groove (43) are linked together with vertical spout (42), and the upper end fixed link in test box (4) is connected with first sensor (44), air intake (61) have been seted up to one side of control box (6), and air outlet (62) have been seted up to the opposite side of control box (6), all are connected with dust screen (63) on the inner wall of air intake (61) and air outlet (62), fixed mounting has negative-pressure air fan (64) on the inner wall that control box (6) are close to air intake (61), loudspeaker (65) are installed to the upper end of control box (6) inner wall, install second sensor (66) in control box (6) of loudspeaker (65) one side, lower extreme in control box (6) is connected with circuit board (67) and controller (68), controller (68) and circuit board (67) electric connection, circuit board (67) respectively with first sensor (44), negative-pressure air fan (64), loudspeaker (65) and second sensor (66) electric connection.

2. A natural gas connection control valve according to claim 1, wherein: the width of the vertical sliding groove (42) is matched with the width of the handle connecting body (12).

3. A natural gas connection control valve according to claim 1, wherein: the length of the movable groove (43) is matched with the movable path of the handle connecting body (12), and the handle connecting body (12) penetrates through the movable groove (43).

4. A natural gas connection control valve according to claim 1, wherein: the structure of the air outlet (3) is the same as that of the air inlet (2).

5. A natural gas connection control valve according to claim 1, wherein: the aperture of the central hole (231) is matched with the natural gas pipe (5), one end of the natural gas pipe (5) arranged in the fixing sleeve (23) is sleeved with a sealing ring (25), and the outer wall of the sealing ring (25) is contacted with the inner wall of the circular truncated cone pipe (21).

6. A natural gas connection control valve according to claim 1, wherein: the round table pipe (21) is of a round table-shaped structure, the inner wall of the fixing sleeve (23) is matched with the round table pipe (21), and stepped clamping grains are formed in the surface, in contact with the round table pipe (21), of the fixing sleeve (23).