CN218440885U

CN218440885U - Valve body of liquefied gas pressure regulating valve

Info

Publication number: CN218440885U
Application number: CN202222869153.2U
Authority: CN
Inventors: 郑志勇; 李德松; 翁维平; 汪星宇; 王盛; 吴如杰; 郑桂凤; 王辉力
Original assignee: Zhejiang Best And Honest Electromechanics Co ltd
Current assignee: Zhejiang Best And Honest Electromechanics Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-02-03
Anticipated expiration: 2032-10-28

Abstract

The utility model provides a valve body of liquefied gas air-vent valve belongs to liquefied gas air-vent valve technical field. The emergency cut-off device solves the problem that the production cost is high when an emergency cut-off function needs to be configured for use. The body is provided with a cavity and a cavity opening part penetrating through the top of the body, the bottom of the body is provided with an annular convex part, a partition part is arranged in the body, a communication hole communicated with the cavity and an inner hole of the convex part is formed in the partition part, the central line of the communication hole is parallel or collinear with the central line of the convex part, the air inlet is arranged in parallel with the air outlet channel, the central line of the air outlet channel is perpendicular to the central line of the communication hole, the air outlet channel is communicated with the inner hole of the convex part, and the lower end part of the convex part is provided with a plurality of mounting holes which are arranged around the inner hole of the convex part and are parallel to the central line of the inner hole of the convex part. The emergency cut-off device has the advantages of low production cost, compact structure and the like when an emergency cut-off function is configured.

Description

Valve body of liquefied gas pressure regulating valve

Technical Field

The utility model belongs to the technical field of the liquefied gas air-vent valve, a valve body of liquefied gas air-vent valve is related to.

Background

The pressure regulating valve for liquefied gas is also called liquefied gas pressure regulator, and is connected to the outlet of angle valve of liquefied gas cylinder, and the liquefied gas utensil is connected to the liquefied gas pressure regulator via pipe. For example, patent application No. 202210404686.5 discloses a gas pressure regulator, which comprises: a valve body; the pressure regulating assembly is arranged in the valve body and divides the valve body into a pressure regulating cavity and a valve cavity, and the difference of acting force between the pressure regulating cavity and the valve cavity moves back and forth so as to regulate the gas outlet quantity of a gas outlet of the valve body or seal the valve body; the indicating assembly is sleeved at the top of the valve body and is connected with the valve body in a sliding manner, the end part of the indicating assembly is clamped with the side wall of the pressure regulating assembly and can drive the pressure regulating assembly to move so as to open the valve body, and the indicating assembly is connected with the top end of the pressure regulating assembly through an elastic piece; when the valve body is in an open state, the indicating assembly moves relative to the valve body under the action of the elastic force of the elastic piece, so that a gap is formed between the indicating assembly and the contact surface of the valve body. The gas pressure regulator is simple in structure, and the state of the gas pressure regulator can be judged according to whether a gap exists between the indicating assembly and the valve body.

With the continuous improvement of safety consciousness of people, people begin to require that the supply of natural gas can be cut off emergently after gas leakage occurs indoors so as to avoid accidents such as fire explosion and the like. At present, the existing mode is that an emergency cut-off electromagnetic valve and an existing liquefied gas pressure regulating valve are directly connected together to form a whole, an inlet of the emergency cut-off electromagnetic valve is in butt joint with an outlet of the liquefied gas pressure regulating valve, the emergency cut-off electromagnetic valve is matched with a liquefied gas leakage alarm arranged indoors for use, and when the liquefied gas leakage alarm detects that the indoor concentration exceeds a set value, the emergency cut-off electromagnetic valve is controlled to cut off a liquefied gas passage. However, this results in a relatively high cost of manufacture and the resulting product has poor integrity and an aesthetically undesirable appearance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that prior art exists, provide a liquefied gas air-vent valve, solved the problem that manufacturing cost is high, the structure is complicated when needing to dispose urgent cutting function and use.

The purpose of the utility model can be realized by the following technical proposal:

the valve body of the liquefied gas pressure regulating valve comprises a body with an air inlet and an air outlet channel, wherein the body is provided with a cavity and a cavity opening part penetrating through the top of the body, and is characterized in that the bottom of the body is provided with an annular convex part, a partition part is arranged in the body, a communication hole communicated with the cavity and an inner hole of the convex part is formed in the partition part, the central line of the communication hole is parallel or collinear with the central line of the convex part, the air inlet and the air outlet channel are arranged in parallel, the central line of the air outlet channel is perpendicular to the central line of the communication hole and communicated with the inner hole of the convex part, and the lower end part of the convex part is provided with a plurality of mounting holes which are arranged around the inner hole and are parallel to the central line of the inner hole.

When the valve body is used for a common liquefied gas pressure regulating valve, the upper sealing plate is fixed at the lower end part of the convex part by screws, and the existence of the communication hole and the convex part can not influence the use of the common liquefied gas pressure regulating valve. When the liquefied gas pressure regulating valve is required to have the emergency cut-off function, the convex part can play a role similar to a valve seat in a traditional emergency cut-off electromagnetic valve, only a component for realizing the emergency cut-off function is required to be installed on the convex part by using screws, and the partition part and the communication hole in the body can be directly used as a position for cutting off a passage by abutting against an actuating mechanism in the component for realizing the emergency cut-off function.

The bottom of the body of the valve body is provided with the convex part, the body is internally provided with the partition part, and the partition part is provided with the communication hole which communicates the inner cavity of the valve body with the inner hole of the convex part, so that the assembly with the emergency cut-off function can be directly installed and fixed on the valve body without additionally arranging a complete emergency cut-off electromagnetic valve connected with the liquefied gas pressure regulating valve, thereby greatly reducing the production cost of enterprises and leading the integrated structure to be more compact.

In the valve body of the liquefied gas pressure regulating valve, the partition part is provided with a boss protruding along the circumferential direction of the partition part at the lower orifice of the communication hole.

For a liquefied gas pressure regulating valve requiring integration of an emergency shut-off function, it is possible to better match an actuator in an assembly for realizing the emergency shut-off function by projecting a boss in the partition at the lower orifice of the communication hole in the circumferential direction thereof.

In the valve body of the liquefied gas pressure regulating valve, the outer side of the lower end part of the convex part is provided with a mounting part, the lower surface of the mounting part is flush with the bottom surface of the convex part, and the mounting hole is formed in the mounting part.

The installation part is arranged, so that a structure similar to a flange is formed outside the opening part of the convex part, and the components realizing the emergency cut-off function can be connected on the valve body more firmly.

In the valve body of the liquefied gas pressure regulating valve, the air outlet channel sequentially comprises a first hole part, a second hole part and a main channel along the direction far away from the air inlet, the inner diameters of the first hole part, the second hole part and the main channel are gradually increased, the second hole part is provided with internal threads, the main body at the main channel is cylindrical, and the side part of the main body is provided with an assembling hole which is communicated with the main channel and is provided with internal threads.

The air outlet channel sequentially comprises a first hole part, a second hole part and a main channel along the direction far away from the air inlet, wherein the main channel is arranged on the body and is used for being connected with the pipe. The existence of the hole part I and the hole part II with internal threads enables the overcurrent cutoff device to be installed and fixed in the valve body (specifically, the outer shell of the overcurrent cutoff device is in threaded connection with the hole part II, and one end of the outer shell of the overcurrent cutoff device extends into the hole part I); the assembly hole with the internal thread at the side part of the main channel enables the reset assembly matched with the overcurrent cutoff device to be installed and fixed on the valve body. When the required liquefied gas pressure regulating valve does not need an overcurrent cutoff function, the assembling hole is plugged by using the plug.

In the valve body of the liquefied gas pressure regulating valve, the body is internally provided with a connecting part which is fixedly connected with the upper surface of the partition part and the inner wall of the body integrally, the connecting part is in a block shape and is provided with a gas guide groove which penetrates through the lower surface of the partition part and is communicated with the inner hole of the convex part, the first hole part is communicated with the gas guide groove, and the orifice of the first hole part is positioned at the inner side of the gas guide groove.

The first hole part is communicated with the air guide groove, and the orifice of the first hole part is positioned at the inner side of the air guide groove, so that when the overcurrent cutoff device is installed and fixed in the valve body, one end of the shell of the overcurrent cutoff device can extend into the air guide groove through the first hole part, and the first hole part can be designed to be shorter and more reasonably utilize redundant space in the valve body when the valve body is designed. Through the arrangement, the valve body can integrate the overcurrent cutoff function, and the whole length of the valve body is almost the same as that of the traditional liquefied gas pressure regulating valve.

Compared with the prior art, the valve body of the liquefied gas pressure regulating valve is provided with the convex part at the bottom of the valve body, the partition part is arranged in the valve body, and the communication hole for communicating the inner cavity of the valve body with the inner hole of the convex part is formed in the partition part, so that the assembly for realizing the emergency cut-off function can be directly installed and fixed on the valve body without additionally arranging a complete emergency cut-off electromagnetic valve connected with the liquefied gas pressure regulating valve, the production cost of enterprises is greatly reduced, and the combined structure is more compact.

Drawings

Fig. 1 is a sectional view of a valve body of the liquefied gas pressure regulating valve.

Fig. 2 is a schematic view of a valve body of the present liquefied gas pressure regulating valve.

Fig. 3 is another schematic angle diagram of the valve body of the liquefied gas pressure regulating valve.

Fig. 4 is a sectional view of a conventional liquefied gas pressure regulating valve using the present valve body.

Fig. 5 is a cross-sectional view of a liquefied gas pressure regulating valve having an emergency shutoff function and an excess flow shutoff function.

In the figure, 1, a body; 2. an air inlet; 3. an air outlet channel; 3a, a hole part I; 3b, a hole part II; 3c, a main channel; 4. a convex portion; 4a, mounting holes; 4b, an installation part; 5. a partition portion; 5a, a communication hole; 5b, a boss; 6. an assembly hole; 7. a connecting portion; 7a and an air guide groove.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-3, the valve body of the liquefied gas pressure regulating valve comprises a body 1 having an air inlet 2 and an air outlet channel 3, the body 1 has a cavity which penetrates through the top of the body 1, the bottom of the body 1 has a ring-shaped protrusion 4, the body 1 has a partition part 5 therein, the partition part 5 has a communication hole 5a for communicating the cavity of the body 1 with the inner hole of the protrusion 4, the center line of the communication hole 5a is parallel or collinear (in the embodiment, the two are arranged collinearly), the partition part 5 has a boss 5b protruding from the lower hole of the communication hole 5a along the circumferential direction thereof, and the lower end of the protrusion 4 is lower than the lower end of the boss 5 b. The air inlet 2 is arranged in parallel with the air outlet channel 3, the central line of the air outlet channel 3 is vertical to the central line of the communicating hole 5a, the air outlet channel 3 is communicated with the inner hole of the convex part 4, the lower end part of the convex part 4 is provided with a plurality of mounting holes 4a which are arranged around the inner hole and the central lines of which are parallel to the central line of the inner hole, and the mounting holes 4a are provided with internal threads. In the present embodiment, the lower end of the protruding portion 4 has a mounting portion 4b on the outside, the lower surface of the mounting portion 4b is flush with the bottom surface of the protruding portion 4, and a mounting hole 4a is provided on the mounting portion 4 b.

Further, as shown in fig. 1-3, the outlet channel 3 sequentially includes a first hole portion 3a, a second hole portion 3b and a main channel 3c along a direction away from the inlet 2, inner diameters of the first hole portion 3a, the second hole portion 3b and the main channel 3c are gradually increased, the second hole portion 3b has internal threads, the main channel 3c is located in the main body 1, and a fitting hole 6 which is communicated with the main channel 3c and is provided with the internal threads is arranged on a side portion of the main channel 3 c. The body 1 is internally provided with a connecting part 7 which is integrally and fixedly connected with the upper surface of the partition part 5 and the inner wall of the body 1, the connecting part 7 is in a block shape, the connecting part 7 is provided with an air guide groove 7a which penetrates through the lower surface of the partition part 5 and is communicated with the inner hole of the convex part 4, the first hole part 3a is communicated with the air guide groove 7a, and the hole opening of the first hole part 3a is positioned at the inner side of the air guide groove 7 a.

As shown in fig. 4, when the valve body is used for a common liquefied gas pressure regulating valve, the upper sealing plate is fixed at the lower end of the convex part 4 by screws, and the plug is connected with the mounting hole 6 at the side part of the main channel 3c by internal threads, so that the existence of the communication hole 5a and the convex part 4 does not affect the use of the common liquefied gas pressure regulating valve.

As shown in fig. 5, when the liquefied gas pressure regulating valve is required to have the emergency shut-off function, the projection 4 can function similarly to the valve seat in the conventional emergency shut-off solenoid valve, and in this case, only the member for realizing the emergency shut-off function needs to be attached to the projection 4 by screws, and the partition portion 5 and the communication hole 5a in the main body 1 can be directly used as a position for shutting off the passage against the actuator in the member for realizing the emergency shut-off function. Further, when the liquefied gas pressure regulating valve is required to have an overcurrent cutoff function, the overcurrent cutoff device is installed and fixed in the gas outlet channel 3, specifically, the housing of the overcurrent cutoff device is in threaded connection with the hole part two 3b, one end part of the housing of the overcurrent cutoff device extends into the gas guide groove 7a through the hole part one 3a, and the reset assembly matched with the overcurrent cutoff device is in threaded connection with the assembly hole 6.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. Valve body of liquefied gas air-vent valve, including body (1) that has air inlet (2) and outlet channel (3), body (1) cavity and cavity oral area run through body (1) top have, its characterized in that, body (1) bottom have and be annular convex part (4), division portion (5) have in body (1), have on division portion (5) intercommunicating pore (5 a) that are linked together cavity and convex part (4) hole, the central line and convex part (4) central line of intercommunicating pore (5 a) are parallel or collineation, air inlet (2) and outlet channel (3) parallel arrangement, the central line and intercommunicating pore (5 a) central line looks vertical and outlet channel (3) and convex part (4) hole are linked together, the lower tip of convex part (4) is equipped with a plurality of mounting holes (4 a) that set up and central line and its central line parallel around its hole.

2. A valve body of a liquefied gas pressure regulating valve according to claim 1, wherein said partition portion (5) has a boss (5 b) projected in a circumferential direction thereof at a lower orifice of the communicating hole (5 a).

3. A valve body for a liquefied gas pressure regulating valve according to claim 2, wherein said projection (4) has a mounting portion (4 b) on the outer side of the lower end portion thereof, the lower surface of the mounting portion (4 b) is flush with the bottom surface of the projection (4), and the mounting hole (4 a) is provided in the mounting portion (4 b).

4. A valve body of a liquefied gas pressure regulating valve according to claim 1, 2 or 3, wherein the outlet passage (3) comprises a first hole portion (3 a), a second hole portion (3 b) and a main passage (3 c) in sequence along a direction away from the inlet (2), the inner diameters of the first hole portion (3 a), the second hole portion (3 b) and the main passage (3 c) are gradually increased, the second hole portion (3 b) is provided with an internal thread, the main passage (3 c) is located on the body (1) in a cylindrical shape, and the side portion of the body is provided with an assembling hole (6) which is communicated with the main passage (3 c) and is provided with the internal thread.

5. A valve body for a liquefied gas pressure regulating valve according to claim 4, wherein said body (1) has therein a connecting portion (7) integrally and fixedly connected to an upper surface of said partition portion (5) and an inner wall of said body (1), said connecting portion (7) having a block shape, said connecting portion (7) having a gas guide groove (7 a) penetrating a lower surface of said partition portion (5) and communicating with an inner hole of said projection (4), said hole portion one (3 a) communicating with said gas guide groove (7 a) and an opening of said hole portion one (3 a) being located inside said gas guide groove (7 a).