CN219640032U

CN219640032U - Automatic protection system for liquefied gas tank

Info

Publication number: CN219640032U
Application number: CN202320070677.7U
Authority: CN
Inventors: 韩伟; 张凤忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-09-05
Anticipated expiration: 2033-01-10

Abstract

The automatic protection system of the liquefied gas tank comprises a valve body, wherein the valve body is formed by connecting and communicating two valve seats I and II with vertical opening directions; an electromagnetic switch is fixed at the opening end of the valve seat I through a bolt, a copper rod is inserted at the bottom of the electromagnetic switch and abuts against a sealing rubber disc in the valve seat I, a jacking spring is arranged at the inner bottom of the valve seat I, a sealing cover is arranged at the upper end of the jacking spring, a compression screw sleeve abuts against the sealing cover and is placed in the valve seat I, the sealing rubber disc abuts against an opening and closing support column, and the bottom of the opening and closing support column penetrates through the compression screw sleeve to abut against the sealing cover; the air outlet end of the valve seat II is fixed with a pressure regulating valve through a bolt. The pressure regulating valve of the device can regulate the air outlet pressure, can meet the demand of a user on the fire intensity, utilizes the electromagnetic switch to control the closing of a pipeline, enhances the safety of a gas pipeline, and after the system is installed on a liquefied gas steel cylinder, the phenomenon that a fire fighter runs outwards holding the liquefied gas steel cylinder for flaming does not occur when the use environment is in a fire disaster.

Description

Automatic protection system for liquefied gas tank

Technical Field

The utility model belongs to a safety valve, and particularly relates to an automatic protection system for a liquefied gas tank.

Background

The fuel gas can be generally divided into natural gas, artificial fuel gas, liquefied petroleum gas, biomass gas and the like, compared with developed countries, the fuel gas supply industry in China starts later, and the distributed fuel gas mainly comprises three types of gas, liquefied petroleum gas and natural gas. Most of business places such as restaurants, hotels and the like are liquefied gas tanks, and are generally directly connected to a gas stove through a gas pipe, after the use, the gas stove can be directly closed, and a switch valve on the liquefied gas tank can be closed, but potential safety hazards exist, such as the phenomenon that the connection part of the gas pipe and the gas stove or the connection part of the gas pipe and the liquefied gas tank is difficult to loose or the phenomenon that the gas pipe is aged, the problem of gas leakage is easily caused, and if the gas leakage cannot be timely found, the gas accident can be caused, and the personal safety and property safety of people are seriously endangered; on the other hand, when a fire occurs, it takes a long time to remove the liquefied gas tank, and during this time, the liquefied gas tank is easily exploded, causing greater damage.

Disclosure of Invention

The present utility model addresses the deficiencies of the prior art described above by providing an automatic protection system for a liquefied gas tank.

The automatic protection system of the liquefied gas tank comprises a valve body, wherein the valve body is formed by connecting two valve seats I and II with vertical opening directions, and the valve seats I and II are communicated; the electromagnetic valve is characterized in that an electromagnetic switch is fixedly arranged at the opening end of the valve seat I through a bolt, a copper rod is inserted at the bottom of the electromagnetic switch and abuts against a sealing rubber disc in the valve seat I, a jacking spring is arranged at the inner bottom of the valve seat I, a sealing cover is arranged at the upper end of the jacking spring, the bottom end of a compression screw sleeve abuts against the sealing cover and is placed in the valve seat I, the bottom of the sealing rubber disc abuts against an opening and closing support column, and the bottom of the opening and closing support column penetrates through the compression screw sleeve to abut against the sealing cover; the air outlet end of the valve seat II is fixedly provided with a pressure regulating valve through a bolt, and the pressure regulating valve is formed by sequentially and fixedly connecting a control end cover, a fuel gas bin and a control chassis from top to bottom.

As a further improvement of the utility model, the control chassis is fixedly arranged on the valve seat II through a bolt, two fixing piles and an air outlet hole are symmetrically arranged at the inner bottom of the control chassis, a threaded hole and a groove I are arranged on the fixing piles, a pin shaft penetrates through the bottom of one end of the compression lever, two ends of the pin shaft are arranged in the groove I and are matched with the threaded hole to be compressed and fixed through a screw, a groove II is arranged at the bottom of one end of the compression lever, a sealing gasket is arranged in the groove II and is propped against the air outlet hole, a strip-shaped through hole is arranged at the other end of the compression lever, the lower end of a linking bayonet lock is arranged in the strip-shaped through hole and is in sliding connection with the strip-shaped through hole, the upper end of the linking bayonet lock sequentially penetrates through a rubber sealing gasket and a spring retaining piece and is screwed and fixed through a nut, the rubber sealing gasket is fixed on a boss at the upper end of a gas bin, and the upper end of the spring retaining piece is provided with a compression spring, and the upper end of the compression spring is propped against the pressure spring nut.

As a further improvement of the utility model, the upper end of the control end cover is provided with a control knob, one end of a set screw I penetrates through the upper end of the control knob and is fixedly connected with the rotary screw, one end of a positioning circular ring piece penetrates through the rotary screw and is fixedly connected with the bottom end of the control end cover, a pressure spring nut is sleeved at the bottom end of the rotary screw and is screwed and fixed through a set screw II, and the upper end of the positioning circular ring piece abuts against the bottom of the positioning circular ring piece.

As a further improvement of the utility model, one end of the valve seat I is provided with a connecting pipe body, the connecting pipe body is provided with a barometer, one end of the connecting pipe body is fixedly connected with a valve body connector, the other end of the valve body connector is fixedly connected with a connecting sealing sleeve head, and the outer wall of the valve body connector is sleeved with a gas tank connector.

As a further improvement of the utility model, a through hole is arranged on the side wall of one side of the valve seat II, and a sealing cap is arranged in the through hole.

As a further improvement of the utility model, the outer wall of one side of the gas bin is provided with a gas stove connector.

As a further improvement of the utility model, the top of the electromagnetic switch is provided with an opening and closing button.

The automatic protection system for the liquefied gas tank has reasonable structural design, the design of the pressure regulating valve can regulate the pressure of the gas outlet, and the demand of a user on the fire intensity can be met.

Drawings

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

FIG. 2 is a schematic diagram of a combined structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of a main body of a protection valve according to the present utility model;

fig. 4 is a schematic view of a fixing pile according to the present utility model.

Description of the embodiments

The automatic protection system of the liquefied gas tank comprises a valve body 1, wherein the valve body 1 is formed by connecting two valve seats I2 and II 3 with vertical opening directions, and the valve seats I2 and II 3 are communicated; the open end of disk seat I2 pass through bolt fixed mounting and have electromagnetic switch 4, electromagnetic switch 4 top is equipped with the button 42 that opens and shuts, and copper rod 5 has been inserted to electromagnetic switch 4's bottom, and copper rod 5 offsets with the sealed rubber disk 6 in the disk seat I2, disk seat I2 in the bottom be equipped with jack-up spring 7, jack-up spring 7 upper end is equipped with sealed lid 8, compress tightly swivel nut 9 bottom and sealed lid 8 offset, and put in the disk seatI2 inThe bottom of the sealing rubber wafer 6 is propped against the opening and closing support column 11, the bottom of the opening and closing support column 11 passes through the compression screw sleeve 9 to prop against the sealing cover 8, and one end of the valve seat I2 is provided with a connectionThe pipe body 34 is provided with the barometer 35 on the pipe body 34, and the one end fixedly connected with valve body connector 36 of pipe body 34, the other end of valve body connector 36 is fixed with and connects sealed sleeve 37, valve body connector 36 outer wall cup joint gas jar connector 38.

The air outlet end of the valve seat II 3 is fixedly provided with a pressure regulating valve 12 through a bolt, the pressure regulating valve 12 is formed by sequentially and fixedly connecting a control end cover 13, a gas bin 14 and a control chassis 15 from top to bottom, the upper end of the control end cover 13 is provided with a control knob 16, one end of a positioning screw I17 penetrates through the upper end of the control knob 16 to be fixedly connected with a rotary screw 18, one end of a positioning ring piece 19 penetrates through the rotary screw 18 to be fixedly connected with the bottom end of the control end cover 13, a pressure spring nut 20 is sleeved at the bottom end of the rotary screw 18 and is screwed and fixed through a positioning screw II 21, and the upper end of the pressure spring nut abuts against the bottom of the positioning ring piece 19; the control chassis 15 is fixedly arranged on the valve seat II 3 through bolts, two fixing piles 22 and one air outlet hole 23 are symmetrically arranged at the inner bottom of the control chassis 15, a threaded opening 24 and a groove I25 are formed in the fixing piles 22, a pin shaft 26 penetrates through the bottom of one end of the compression lever 27, two ends of the pin shaft are arranged in the groove I25 and are matched and compressed and fixed with the threaded opening 24 through screws, a groove II is formed in the bottom of one end of the compression lever 27, a sealing gasket 28 is arranged in the groove II, the sealing gasket 28 abuts against the air outlet hole 23, a strip-shaped through hole is formed at the other end of the compression lever 27, the lower end of a linking bayonet lock 30 is arranged in the strip-shaped through hole and is in sliding connection with the strip-shaped through hole, the upper end of the linking bayonet lock 30 sequentially penetrates through a rubber sealing gasket 31 and a spring blocking piece 32 and is screwed and fixed by nuts, the rubber sealing gasket 31 is fixed on a boss at the upper end of the gas bin 14, a compression spring 33 is arranged at the upper end of the spring blocking piece 32, and the upper end of the compression spring 33 abuts against the pressure spring 20; a through hole 39 is formed in the side wall of one side of the valve seat II 3, and a sealing cap 40 is arranged in the through hole 39; the outer wall of one side of the gas bin 14 is provided with a gas stove connector 41, the outer wall of the gas stove connector 41 is provided with a pressure shear mark, and when a fire disaster occurs, the pressure shear mark can be designed to conveniently separate the liquefied gas tank from the gas stove, so that the liquefied gas tank is prevented from being exploded to cause larger harm.

Before the utility model is used, the electromagnetic switch 4 is electrically connected with an external gas alarm system with temperature induction, and then the opening and closing button 42 is opened, at the moment, the sealing cover 8 is propped against the bottom of the compression screw sleeve 9, a gap is reserved between the sealing cover 8 and the gas outlet 10, and gas can normally pass through; when the external alarm system detects that the gas leaks or the environmental temperature is ultrahigh, the electromagnetic switch 4 is electrified, the opening and closing button 42 is closed, the sealing cover 8 seals the gas outlet 10 under the action of the copper rod 5, and the supply of the gas is cut off.

When the gas outlet amount of the gas needs to be increased, the control knob 16 is screwed clockwise, the pressure spring nut 20 slowly moves downwards, the compression spring 33 is compressed under the action of the pressure spring nut 20 to generate downward force, the link bayonet lock 30 slowly presses down one end of the compression lever 27, meanwhile, the other end of the compression lever 27 is slowly lifted, the gap between the sealing gasket 28 and the gas outlet 23 is also slowly increased, and the gas outlet amount of the gas is also slowly increased; when the gas output needs to be adjusted, the control knob 16 is screwed anticlockwise, the pressure spring nut 20 moves upwards along with the control knob, the acting force of the pressure spring nut 20 on the pressure spring 33 is slowly reduced, the acting force of the pressure spring 33 on the spring baffle plate 32 is also slowly reduced, the link bayonet lock 30 is slowly moved upwards and drives one end of the pressure lever 27 to lift and the other end of the pressure lever to fall, the gap between the sealing gasket 28 and the gas outlet 23 is also slowly reduced, and the gas output of the gas is also slowly reduced along with the pressure spring nut 20.

Claims

1. The automatic protection system for the liquefied gas tank comprises a valve body (1) and is characterized in that the valve body (1) is formed by connecting a valve seat I (2) and a valve seat II (3) which are in a vertical state along two opening directions, and the valve seat I (2) and the valve seat II (3) are communicated; the electromagnetic valve is characterized in that an electromagnetic switch (4) is fixedly arranged at the opening end of the valve seat I (2) through a bolt, a copper rod (5) is inserted at the bottom of the electromagnetic switch (4), the copper rod (5) is propped against a sealing rubber disc (6) in the valve seat I (2), a jacking spring (7) is arranged at the inner bottom of the valve seat I (2), a sealing cover (8) is arranged at the upper end of the jacking spring (7), the bottom end of a compression screw sleeve (9) is propped against the sealing cover (8) and is placed in the valve seat I (2), the bottom of the sealing rubber disc (6) is propped against an opening and closing support column (11), and the bottom of the opening and closing support column (11) penetrates through the compression screw sleeve (9) to be propped against the sealing cover (8); the air outlet end of the valve seat II (3) is fixedly provided with a pressure regulating valve (12) through a bolt, and the pressure regulating valve (12) is formed by sequentially and fixedly connecting a control end cover (13), a fuel gas bin (14) and a control chassis (15) from top to bottom.

2. The automatic protection system for the liquefied gas tank according to claim 1, wherein the control chassis (15) is fixedly arranged on the valve seat II (3) through bolts, two fixing piles (22) and one gas outlet hole (23) are symmetrically arranged at the inner bottom of the control chassis (15), a threaded opening (24) and a groove I (25) are arranged on the fixing piles (22), a pin shaft (26) penetrates through the bottom of one end of the compression lever (27), two ends of the pin shaft are arranged in the groove I (25) and are matched and compressed and fixed with the threaded opening (24) through screws, a groove II is arranged at the bottom of one end of the compression lever (27), a sealing gasket (28) is arranged in the groove II and is abutted against the gas outlet hole (23), a strip-shaped through hole is arranged at the other end of the compression lever (27), a connecting clamping pin (30) is arranged in the strip-shaped through hole and is connected with the lower end of the fixing piles in a sliding mode, the upper end of the connecting clamping pin (30) sequentially penetrates through a rubber sealing gasket (31) and a spring retaining piece (32) and is fixed through nuts, the rubber sealing gasket (31) is fixed on the upper end of the gas chamber (14) through the screw cap (33), and the compression spring retaining piece (33) is abutted against the upper end of the spring retaining piece (33).

3. The automatic protection system of the liquefied gas cylinder according to claim 1, wherein the upper end of the control end cover (13) is provided with a control knob (16), one end of a set screw I (17) penetrates through the upper end of the control knob (16) and is fixedly connected with a rotary screw (18), one end of a positioning circular ring sheet (19) penetrates through the rotary screw (18) and is fixedly connected with the bottom end of the control end cover (13), a pressure spring nut (20) is sleeved at the bottom end of the rotary screw (18) and is screwed and fixed through a set screw II (21), and the upper end of the pressure spring nut abuts against the bottom of the positioning circular ring sheet (19).

4. The automatic protection system of the liquefied gas tank according to claim 1, wherein one end of the valve seat I (2) is provided with a connecting pipe body (34), the connecting pipe body (34) is provided with a barometer (35), one end of the connecting pipe body (34) is fixedly connected with a valve body connector (36), the other end of the valve body connector (36) is fixedly connected with a connecting sealing sleeve head (37), and the outer wall of the valve body connector (36) is sleeved with a gas tank connector (38).

5. The automatic protection system of the liquefied gas cylinder according to claim 1, wherein a through hole (39) is arranged on one side wall of the valve seat II (3), and a sealing cap (40) is arranged in the through hole (39).

6. The automatic protection system of the liquefied gas tank according to claim 1, wherein a gas stove connector (41) is arranged on the outer wall of one side of the gas bin (14).

7. The automatic protection system of the liquefied gas cylinder according to claim 1, wherein the top of the electromagnetic switch (4) is provided with an opening and closing button (42).