CN213839633U

CN213839633U - Safety valve with gas leakage detection function

Info

Publication number: CN213839633U
Application number: CN202023024084.2U
Authority: CN
Inventors: 郑春娜; 赵法良
Original assignee: Guangzhou Liancheng Energy Science And Technology Development Co ltd
Current assignee: Guangzhou Liancheng Energy Science And Technology Development Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-07-30
Anticipated expiration: 2030-12-15

Abstract

The utility model discloses a relief valve with detect gas leakage function, which belongs to the technical field of relief valves and comprises a valve body, wherein a baffle and a valve core are arranged inside the valve body, and an alarm is arranged outside the valve body; the utility model discloses a cup joint the semi-ring one and the semi-ring two that carry out the connection through the screw in the periphery of valve body, and the alarm bonds in the upper end of installation piece, and this kind of structure further just can realize the dismantlement to the alarm through unscrewing the screw.

Description

Safety valve with gas leakage detection function

Technical Field

The utility model belongs to the technical field of the relief valve, concretely relates to relief valve with detect gas leakage function.

Background

The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value. The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation. The injection and safety valve must be pressure tested before it can be used.

Chinese patent application No. 201821340720.2 discloses an leak protection gas safety valve that security performance is good, and its device lacks the supplementary reserve jam subassembly that closes the air duct, can make the condition of gas leakage more serious when the unable rotation of hand wheel appears and in time realize that the case rotates and carries out the condition of blockking up to the round hole, and its device also is fixed knot structure to the installation of alarm in addition, and it is comparatively troublesome to operate when needs are dismantled the alarm.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a relief valve with detect gas leakage function has in time closed way, convenient to detach characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a safety valve with a gas leakage detection function comprises a valve body, wherein a baffle and a valve core are arranged inside the valve body, an alarm is arranged on the outer side of the valve body, a round hole is formed in the baffle, a blocking assembly is arranged on one side, away from the valve core, of the baffle, an air channel is formed in the valve core, a valve rod is connected to the upper end of the valve core, a movable plate is arranged on the periphery of the valve rod, a hand wheel is connected to the top end of the valve rod, a conductive ring electrically connected with the alarm is mounted at the upper end of the movable plate, a graphite block is arranged above the conductive ring, the blocking assembly comprises a fixed rod, a limiting piece, a movable rod, a compression spring, a blocking plate, a limiting block and a screw rod, wherein the fixed rod is connected to the inside of the valve body, the screw rod penetrates through the inner thread of the side wall of the valve body, the movable rod penetrates through the movable rod, and the limiting piece and the blocking plate are connected to the two ends of the movable rod respectively, and the periphery cover of movable rod is equipped with compression spring, the screw rod extends to the inside one end of valve body and is connected with the stopper.

Preferably, the screw rod is connected with the valve body through a rotating bearing, the blocking plate is elastically connected with the fixed rod through a compression spring, and the limiting block is located on one side, close to the baffle, of the blocking plate in the initial state.

Preferably, one end of the screw rod extending to the outer top of the valve body is connected with a knob.

Preferably, the limiting piece is arranged at one end of the movable rod close to the fixed rod.

Preferably, a valve cavity is arranged between the valve core and the inner top end of the valve body, the graphite block is installed at the inner top end of the valve cavity, and a button battery electrically connected with the graphite block is arranged on the outer side of the valve body.

Preferably, the lower extreme of alarm is provided with the installation component, the installation component includes semi-ring one, semi-ring two, nut screw and installation piece, wherein, semi-ring one and semi-ring two have been cup jointed to the periphery of valve body, run through the screw in the horizontal end of semi-ring one, and the outer top welding of semi-ring one has the installation piece, the screw runs through the one end of the horizontal end of semi-ring two and is connected with the nut, the alarm bonds on the top of installation piece through powerful viscose.

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

1. the utility model discloses a through the dead lever that has the movable rod to run through in the internally mounted of valve body, the closure plate that movable rod one end is connected passes through compression spring and dead lever elastic connection, the screw thread runs through the one end of the screw rod of valve body lateral wall and is connected with the stopper that is located between closure plate and baffle, this kind of structure drives the stopper through rotating the screw rod and removes and break away from closure plate and baffle, then drive the closure plate to remove and paste with the baffle under the elastic action of compression spring, just so can play the effect of supplementary jam air duct;

2. the utility model discloses a cup joint semi-ring one and semi-ring two in the periphery of valve body, the welding of top has the semi-ring one of installation piece to connect through screw and semi-ring two, and the alarm bonds in the upper end of installation piece, thereby this kind of structure realizes the separation of semi-ring one and valve body through unscrewing the screw, further just can realize the dismantlement to the alarm.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the mounting assembly of the present invention;

FIG. 3 is a schematic structural view of the plugging assembly of the present invention;

in the figure: 1. a valve body; 2. mounting the component; 21. a first half ring; 22. a second half ring; 23. a nut; 24. a screw; 25. mounting blocks; 3. a plugging component; 31. fixing the rod; 32. a limiting sheet; 33. a movable rod; 34. a compression spring; 35. a blocking plate; 36. a limiting block; 37. a knob; 38. a screw; 4. a baffle plate; 5. a circular hole; 6. an air duct; 7. a button cell; 8. a movable plate; 9. a valve stem; 10. a hand wheel; 11. graphite blocks; 12. conducting rings; 13. a valve cavity; 14. a valve core; 15. an alarm.

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. 1-3, the present invention provides the following technical solutions: a safety valve with a gas leakage detection function comprises a valve body 1, a baffle 4 and a valve core 14 are arranged inside the valve body 1, an alarm 15 is arranged outside the valve body 1, a round hole 5 is arranged inside the baffle 4, a blocking component 3 is arranged on one side, away from the valve core 14, of the baffle 4, an air duct 6 is arranged inside the valve core 14, a valve rod 9 is connected to the upper end of the valve core 14, a movable plate 8 is arranged on the periphery of the valve rod 9, a hand wheel 10 is connected to the top end of the valve rod 9, a conductive ring 12 electrically connected with the alarm 15 is installed at the upper end of the movable plate 8, a graphite block 11 is arranged above the conductive ring 12, the blocking component 3 comprises a fixed rod 31, a limiting sheet 32, a movable rod 33, a compression spring 34, a blocking plate 35, a limiting block 36 and a screw 38, wherein the fixed rod 31 is connected inside the valve body 1, and the screw 38 penetrates through the side wall of the valve body 1, the movable rod 33 penetrates through the fixed rod 31, the two ends of the movable rod 33 are respectively connected with the limiting piece 32 and the blocking plate 35, the compression spring 34 is sleeved on the periphery of the movable rod 33, and the limiting block 36 is connected to one end, extending to the inside of the valve body 1, of the screw 38.

Specifically, the screw 38 is connected to the valve body 1 through a rotary bearing, the blocking plate 35 is elastically connected to the fixing rod 31 through the compression spring 34, and the limiting block 36 is located on one side of the blocking plate 35 close to the baffle 4 in the initial state.

Through adopting above-mentioned technical scheme, when the gas leakage condition but the hand wheel 10 can't rotate again, rotate screw 38 and can drive stopper 36 and remove, when stopper 36 removed to the position that breaks away from between closure plate 35 and the baffle 4, compression spring 34 kick-backs and drives closure plate 35 and remove to hugging closely mutually with baffle 4, just so can realize the jam of closure plate 35 to round hole 5 to the realization is closed the way process.

Specifically, one end of the screw 38 extending to the outer top of the valve body 1 is connected with a knob 37.

Through adopting above-mentioned technical scheme, just can drive screw rod 38 to rotate through rotating knob 37.

Specifically, the limiting piece 32 is installed at one end of the movable rod 33 close to the fixed rod 31.

Through adopting above-mentioned technical scheme, the condition that breaks away from dead lever 31 when movable rod 33 removes can be avoided in the setting of spacing piece 32.

Specifically, a valve cavity 13 is arranged between the valve core 14 and the inner top end of the valve body 1, the graphite block 11 is installed at the inner top end of the valve cavity 13, and the button cell 7 electrically connected with the graphite block 11 is arranged on the outer side of the valve body 1.

By adopting the technical scheme, when the gas leakage condition occurs, the leaked gas enters the valve cavity 13 to drive the movable plate 8 to move upwards, and when the movable plate 8 moves upwards to the position where the conductive ring 12 is attached to the graphite block 11, the alarm 15 can be driven to work under the power supply action of the button cell 7 to realize the alarm function.

Specifically, the lower extreme of alarm 15 is provided with installation component 2, and installation component 2 includes semi-ring one 21, semi-ring two 22, nut 23 screw 24 and installation piece 25, and wherein, semi-ring one 21 and semi-ring two 22 have been cup jointed to the periphery of valve body 1, and the horizontal end of semi-ring one 21 is interior to have run through screw 24, and the welding of the outer top end of semi-ring one 21 has installation piece 25, and the one end that screw 24 runs through the horizontal end of semi-ring two 22 is connected with nut 23, and alarm 15 bonds on the top of installation piece 25 through powerful viscose.

Through adopting above-mentioned technical scheme, utilize half ring one 21 and half ring two 22 to be connected fixedly can realize the installation to alarm 15, only need unscrew nut 23 and screw 24 when needs are dismantled alarm 15 can.

The working principle of the button cell 7, the conductive ring 12 and the alarm 15 in the utility model is disclosed in the anti-leakage safety valve disclosed in the Chinese patent application No. 201821340720.2, which has good safety performance.

The utility model discloses a theory of operation and use flow: when the utility model works, if gas leaks, the leaked gas enters the valve cavity 13 to drive the movable plate 8 to move upwards to the conductive ring 12 to be attached to the graphite block 11, thus, the alarm 15 can be driven to work under the power supply action of the button cell 7 to realize the alarm function, people can find the air leakage condition in time and then can realize the blockage of the round hole 5 by rotating the hand wheel 10 to drive the valve core 14 to rotate, when the handwheel 10 cannot be rotated due to rusting or other reasons, the screw 38 can be rotated to drive the limit block 36 to move, when the limiting block 36 moves to a position where the limiting block is separated from the position between the blocking plate 35 and the baffle 4, the compression spring 34 rebounds to drive the blocking plate 35 to move to be tightly attached to the baffle 4, so that the blocking of the blocking plate 35 on the round hole 5 can be realized, thereby realizing the channel closing process, and the structure can avoid the condition of more serious gas leakage;

the utility model discloses when needing to install alarm 15, at first with semi-ring 21 and semi-ring two 22 joint in the periphery of valve body 1, then make screw 24 screw run through semi-ring 21 and semi-ring two 22's extension end, screw up nut 23 simultaneously, just so can realize the fixed to installation piece 25, just also realized then that the installation to alarm 15 is fixed, and when needs are dismantled alarm 15, thereby only need unscrew nut 23 and screw 24 and realize the separation of semi-ring 21 and semi-ring two 22, alarm 15 and valve body 1's separation has just further just also been realized.

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. A safety valve with a function of detecting gas leakage, comprising a valve body (1), characterized in that: the novel safety valve is characterized in that a baffle (4) and a valve core (14) are arranged inside the valve body (1), an alarm (15) is arranged outside the valve body (1), a round hole (5) is formed in the baffle (4), a blocking component (3) is arranged on one side, away from the valve core (14), of the baffle (4), an air duct (6) is arranged inside the valve core (14), a valve rod (9) is connected to the upper end of the valve core (14), a movable plate (8) is arranged on the periphery of the valve rod (9), a hand wheel (10) is connected to the top end of the valve rod (9), a conductive ring (12) electrically connected with the alarm (15) is installed at the upper end of the movable plate (8), a graphite block (11) is arranged above the conductive ring (12), and the blocking component (3) comprises a fixed rod (31), a limiting sheet (32), a movable rod (33), a compression spring (34), Closure plate (35), stopper (36) and screw rod (38), wherein, the internal connection of valve body (1) has dead lever (31), and the lateral wall internal thread of valve body (1) runs through there is screw rod (38), the inside of dead lever (31) is run through there is movable rod (33), the both ends of movable rod (33) are connected with spacing piece (32) and closure plate (35) respectively, and the periphery cover of movable rod (33) is equipped with compression spring (34), the one end that screw rod (38) extended to valve body (1) inside is connected with stopper (36).

2. A safety valve having a function of detecting a gas leakage according to claim 1, characterized in that: the screw rod (38) is connected with the valve body (1) through a rotating bearing, elastic connection is carried out between the blocking plate (35) and the fixing rod (31) through a compression spring (34), and the limiting block (36) is located on one side, close to the baffle (4), of the blocking plate (35) in the initial state.

3. A safety valve having a function of detecting a gas leakage according to claim 1, characterized in that: one end of the screw rod (38) extending to the outer top of the valve body (1) is connected with a knob (37).

4. A safety valve having a function of detecting a gas leakage according to claim 1, characterized in that: the limiting piece (32) is arranged at one end of the movable rod (33) close to the fixed rod (31).

5. A safety valve having a function of detecting a gas leakage according to claim 1, characterized in that: a valve cavity (13) is arranged between the valve core (14) and the inner top end of the valve body (1), the graphite block (11) is installed at the inner top end of the valve cavity (13), and a button cell (7) electrically connected with the graphite block (11) is arranged on the outer side of the valve body (1).

6. A safety valve having a function of detecting a gas leakage according to claim 1, characterized in that: the lower extreme of alarm (15) is provided with installation component (2), installation component (2) are including semi-ring (21), semi-ring two (22), nut (23) screw (24) and installation piece (25), wherein, semi-ring (21) and semi-ring two (22) have been cup jointed to the periphery of valve body (1), run through screw (24) in the horizontal end of semi-ring (21), and the outer top welding of semi-ring (21) has installation piece (25), the one end that screw (24) run through semi-ring two (22) horizontal end is connected with nut (23), alarm (15) bond on the top of installation piece (25) through powerful viscose.