A gas pressure regulator with a built-in balancing valve

Abstract

This utility model discloses a gas pressure regulator with a built-in balancing valve, including a main valve body, a main regulating valve body, a balancing valve assembly, and a clamp. The balancing valve assembly is installed on the main valve body, and the main valve body and the main regulating valve body are fixedly connected. The interior of the main valve body is divided into an inlet chamber and an outlet chamber by a partition. A valve port is opened in the partition between the inlet chamber and the outlet chamber, and the valve core in the balancing valve assembly can abut against the valve port. A first connection port is opened on the main valve body facing the valve port of the main regulating valve body, and a second connection port is opened on the main regulating valve body facing the first connection port. The first connection port and the second connection port are axially connected and fixedly connected by a clamp on their outer periphery. An axially through connecting cylinder is integrally connected to the inner circumference of the second connection port on the main regulating valve body. The valve stem connected to the valve core passes through the connecting cylinder and is movably connected to the main regulating valve assembly inside the main regulating valve body. This utility model has a simple connection structure, is easy to operate and maintain, is flexible in installation, and is highly practical, which can reduce manufacturing costs.

Description

Technical Field

[0001] This utility model relates to a pressure regulating valve, and more particularly to a gas pressure regulator with a built-in balancing valve. Background Technology

[0002] Gas pressure regulators are core equipment in gas transmission and distribution systems and are widely used in gas transmission and distribution projects. Their main function is to automatically regulate the outlet pressure of gas, ensuring that the outlet pressure remains stable within a set range through pressure reduction and stabilization, meeting user needs, and enabling downstream gas-consuming equipment to obtain a stable and safe gas supply.

[0003] Under normal operating conditions, the existing pressure regulator introduces the pressure downstream of the signal tube into the lower chamber of the main diaphragm of the pressure regulator. The gas pressure in the lower chamber of the main diaphragm is disrupted from the balance with the main spring of the pressure regulator. The main regulating valve assembly drives the valve pad on the valve stem to move, and the distance between the valve pad on the valve core and the valve port increases or decreases, thereby adjusting the outlet pressure of the pressure regulator.

[0004] However, existing gas pressure regulators mostly use bolts to fix the valve body and main control valve together. Since the valve body and main control valve cannot be axially deflected, flexible installation in the direction of the actuator is not possible, resulting in poor flexibility and applicability.

[0005] Therefore, this utility model provides a new technical solution to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a gas pressure regulator with a built-in balance valve. This pressure regulator can be installed at any angle according to the user's needs. The installation direction between the main regulating valve body and the main valve body is simple, easy to operate and maintain, flexible in installation and highly practical, and can reduce manufacturing costs.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A gas pressure regulator with a built-in balancing valve, characterized in that it includes a main valve body, a main regulating valve body, a balancing valve assembly, and a clamp, wherein the balancing valve assembly is installed on the main valve body, and the main valve body and the main regulating valve body are fixedly connected.

[0009] The main valve body is divided into an inlet chamber and an outlet chamber by a partition. A valve port is provided on the partition between the inlet chamber and the outlet chamber. The valve core in the balance valve assembly can abut against the valve port.

[0010] The main valve body has a connection port one at the end facing the valve port of the main regulating valve body, and the main regulating valve body has a connection port two in the direction of the connection port one. The connection port one and the connection port two are axially connected and fixedly connected by a clamp on the outer periphery.

[0011] The connecting port on the main control valve body is integrally connected to an axially penetrating connecting cylinder on its inner circumference. The valve stem connected to the valve core passes through the connecting cylinder and is movably connected to the main control valve assembly inside the main control valve body.

[0012] The present invention is further configured such that an annular protrusion 1 is provided on the outer periphery of the first connection port, and an annular protrusion 2 is provided on the outer periphery of the second connection port. The annular protrusion 1 and the annular protrusion 2 are sleeved together, and the end face 1 of the annular protrusion 1 and the end face 2 of the annular protrusion 2 abut and limit each other.

[0013] The present invention is further characterized in that the clamp has a ring structure and includes two fasteners, which are sleeved on the outer periphery of the first and second ring protrusions and fastened by bolts.

[0014] The present invention is further configured such that: the end of the annular protrusion one away from the annular protrusion two is provided with a conical surface one; the end of the annular protrusion two away from the annular protrusion one is provided with a conical surface two; the fastener is provided with a conical groove, and conical surfaces three are formed on both sides of the conical groove; the annular protrusion one and the annular protrusion two are embedded in the conical groove on their outer periphery; and the conical surfaces one and two are respectively abutted and limited by the conical surfaces three.

[0015] The present invention is further configured such that an annular boss and an annular boss are integrally connected to the end face of the annular protrusion, and an annular groove and an annular groove are provided on the end face of the annular protrusion. The annular boss can be embedded in the annular groove, the annular boss can be embedded in the annular groove, and the end face of the annular boss and the end face of the annular groove are abutted and limited.

[0016] The present invention is further configured such that a gap is reserved between the first annular boss and the first annular groove, and a sealing ring is sleeved on the outer periphery of the second annular boss, the sealing ring being embedded in the second annular groove and abutting and limiting the position of the first annular boss.

[0017] The present invention is further configured such that a push rod is threadedly connected to the end of the valve stem away from the valve port, and the push rod is movably connected to the main regulating valve assembly.

[0018] The beneficial effects of this utility model are as follows: The outer circumference of the main valve body with connection port one is integrally connected to an annular protrusion one, and the outer circumference of the main regulating valve body with connection port two is integrally connected to an annular protrusion two. Connection port one and connection port two are axially connected, and annular protrusion one and annular protrusion two are interlocked and sealed with a sealing ring. Then, a clamp is used to fasten the connection on the outer circumference of annular protrusion one and annular protrusion two. The connection strength is high and it can be flexibly disassembled and installed. Users can install the main regulating valve body and the main valve body at any angle as needed, thereby realizing the convenience of operation and maintenance, and at the same time reducing the size of the entire pressure regulating box, thereby reducing manufacturing costs. Attached Figure Description

[0019] Figure 1 This is a first cross-sectional view of a gas pressure regulator with a built-in balancing valve in this embodiment.

[0020] Figure 2 This is a second cross-sectional view of a gas pressure regulator with a built-in balancing valve in this embodiment.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 for Figure 3 Exploded view.

[0023] Figure 5 This is a schematic diagram of the clamp connection of a gas pressure regulator with a built-in balance valve in this embodiment.

[0024] Reference numerals: Main valve body 1; Inlet cavity 11; Outlet cavity 12; Valve port 13; Baffle plate 14; Connection port 15; Annular protrusion 151; Conical surface 152; End face 153; Annular boss 154; Annular boss 255; Main regulating valve body 2; Connection port 21; Annular protrusion 211; Conical surface 212; End face 213; Annular groove 114; Annular groove 215; Connecting cylinder 216; Main regulating valve assembly 22; Balance valve assembly 3; Valve core 31; Valve stem 32; Top rod 33; Clamp 4; Fastener 41; Conical groove 411; Conical surface 312; Connecting part 42; Bolt 43; Sealing ring 5. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This embodiment discloses a gas pressure regulator with a built-in balancing valve, referring to... Figures 1-4 As shown, it mainly includes a main valve body 1, a main regulating valve body 2, a balance valve assembly 3, and a clamp 5. The balance valve assembly 3 is installed on the main valve body 1, and the main valve body 1 and the main regulating valve body 3 are fixedly connected by the clamp 5.

[0027] Reference Figure 1As shown, the inner cavity of the main valve body 1 is divided into an inlet chamber 11 and an outlet chamber 12 by a partition 14. A valve port 13 is provided in the partition 14 between the inlet chamber 11 and the outlet chamber 12. A connection port 15 communicating with the outlet chamber 12 is provided at the end of the main valve body 1 facing the main regulating valve body 2 and directly opposite the valve port 13. A balance valve assembly 3 is installed on the inner circumference of the connection port 15. The valve core 31 in the balance valve assembly 3 can abut against the valve port 13. A connection port 21 is provided in the direction of the main regulating valve body 2 facing the connection port 15. The connection port 15 and the connection port 21 are axially connected, and the outer circumference of the connection port 15 and the connection port 21 are fixedly connected by a clamp 4. The structure is simple, easy to disassemble, and flexible to install.

[0028] An axially penetrating connecting cylinder 216 is integrally connected to the inner circumference of the connecting port 2 on the main control valve body 2. The valve stem 32 installed on the valve core 31 passes through the connecting cylinder 215. A push rod 33 is threadedly connected to the end of the valve stem 32 away from the valve port 13. The push rod 33 extends into the inner cavity of the main control valve body 2 and is movably connected to the main control valve assembly 22. The valve stem 32 and the push rod 33 are connected by threads, which can cooperate with the axial flexible adjustment between the main valve body 1 and the main control valve body 2, and realize flexible installation in the direction between the actuator.

[0029] Reference Figure 2 and Figure 3 As shown, an annular protrusion 151 is provided on the outer periphery of the connection port 15 of the main valve body 1, and a tapered surface 152 is provided at the end of the annular protrusion 151 away from the annular protrusion 211; an annular protrusion 211 is provided on the outer periphery of the connection port 21, and a tapered surface 212 is provided at the end of the annular protrusion 211 away from the annular protrusion 151. The annular protrusion 151 and the annular protrusion 211 are sleeved together, wherein the end face 153 of the annular protrusion 151 and the end face 213 of the annular protrusion 211 abut and limit each other.

[0030] Reference Figure 3 and Figure 4As shown, to achieve a sealed connection between the main valve body 1 and the main regulating valve body 2, an annular boss 154 and an annular boss 155 are provided on the end face 153 of the annular protrusion 151, and an annular groove 214 and an annular groove 215 are provided on the end face 211 of the annular protrusion 211. When the connection port 15 of the main valve body 1 and the connection port 21 of the main regulating valve body 2 are axially aligned, the annular protrusion 151 and the annular protrusion 211 are interlocked, so that the annular boss 154 is embedded in the annular groove 214 and the annular boss 155 is embedded in the annular groove 215. The end face 153 of the annular boss 155 abuts against the end face 213 of the annular boss 155, and the end face 156 of the annular groove 215 abuts against the end face 216 of the annular groove 215, forming a limiting installation. An annular sealing ring 5 is fitted around the outer circumference of the annular boss 155. The sealing ring 5 is embedded in the annular groove 215 and abuts against the annular boss 154. Since there is a gap between the end face of the annular boss 154 and the annular groove 214, while maintaining the stability of the connection, the annular boss 154 and the annular groove 215 can compress the sealing ring 5, thereby improving the sealing effect of the sealing ring 5.

[0031] Reference Figure 3 and Figure 5 As shown, the clamp 4 is mainly a ring structure formed by two fasteners 41 with a semi-circular shape. A conical groove 411 is provided on the inner circumference of the fastener 41. The outer diameter of the conical groove 411 is larger than the axial distance between the ends of the annular protrusion 151 and the annular protrusion 211 after they are engaged with each other, so that the ends of the annular protrusion 151 and the annular protrusion 211 can be embedded in the conical groove 411. A conical surface 3 412 is formed on both sides of the conical groove 411. Two connecting parts 42 are integrally connected at both ends of the outer circumference of the fastener 41. The two connecting parts 42 are arranged in a symmetrical structure.

[0032] When two fasteners 41 are symmetrically fitted around the outer periphery of the first annular protrusion 151 and the second annular protrusion 211, the outer periphery of the first annular protrusion 151 and the second annular protrusion 211 are embedded in the conical grooves 411 on the fasteners 41. The conical surface 152 of the first annular protrusion 151 and the conical surface 212 of the second annular protrusion 211 respectively abut and limit the conical surface 512. Then, bolts 43 are used to fix the two connecting parts 42 installed on the two fasteners 41 to achieve a fixed connection between the main valve body 1 and the main regulating valve body 2. The connection structure is simple and has high connection strength. It is easy to disassemble and install. Users can install the main regulating valve body 2 and the main valve body 1 at any angle as needed to achieve convenient operation and maintenance. At the same time, it can also reduce the size of the entire pressure regulating box and reduce manufacturing costs.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A gas pressure regulator with built-in counterbalance valve, characterized in that, It includes a main valve body (1), a main regulating valve body (2), a balance valve assembly (3) and a clamp (5). The balance valve assembly (3) is installed on the main valve body (1), and the main valve body (1) and the main regulating valve body (3) are fixedly connected. The main valve body (1) is divided into an inlet chamber (11) and an outlet chamber (12) by a partition (14). A valve port (13) is provided on the partition (14) between the inlet chamber (11) and the outlet chamber (12). The valve core (31) in the balance valve assembly (3) can abut against the valve port (13). The main valve body (1) has a connection port one (15) at the end facing the valve port (13) of the main regulating valve body (2), and the main regulating valve body (2) has a connection port two (21) in the direction of the connection port one (15). The connection port one (15) and the connection port two (21) are axially connected and fixedly connected by a clamp (4) on the outer periphery. The inner circumference of the connection port 2 (21) on the main control valve body (2) is integrally connected to an axially penetrating connecting cylinder (215). The valve stem (32) connected to the valve core (31) passes through the connecting cylinder (216) and is movably connected to the main control valve assembly (22) inside the main control valve body (2).

2. A gas pressure regulator with a built-in counterbalance valve according to claim 1, characterized in that, The outer periphery of the first connection port (15) is provided with an annular protrusion (151), and the outer periphery of the second connection port (21) is provided with an annular protrusion (211). The annular protrusion (151) and the annular protrusion (211) are nested together, and the end face (153) of the annular protrusion (151) and the end face (213) of the annular protrusion (211) abut and limit each other.

3. A gas pressure regulator with a built-in counterbalance valve according to claim 2, characterized in that The clamp (4) has a ring structure and includes two fasteners (41). The two fasteners (41) are sleeved on the outer periphery of the first ring protrusion (151) and the second ring protrusion (211) and are fastened by bolts (43).

4. A gas pressure regulator with a built-in counterbalance valve according to claim 3, characterized in that The annular protrusion one (151) has a conical surface one (152) at the end away from the annular protrusion two (211), and the annular protrusion two (211) has a conical surface two (212) at the end away from the annular protrusion one (151); the fastener (41) has a conical groove (411) inside, and a conical surface three (412) is formed on both sides of the conical groove (411). The annular protrusion one (151) and the annular protrusion two (211) are embedded in the conical groove (411) on their outer periphery, and the conical surface one (152) and the conical surface two (212) respectively abut against and limit the conical surface three (412).

5. A gas pressure regulator with a built-in counterbalance valve according to claim 4, characterized in that The fastener (41) has two connecting parts (42) integrally connected at both ends of its outer periphery. The two fasteners (41) are arranged in a symmetrical structure, and the connecting parts (42) on the two fasteners (41) are fixedly connected by bolts (43).

6. A gas pressure regulator with a built-in counterbalance valve as claimed in claim 2, characterized in that, The end face (153) of the annular protrusion 1 (151) is integrally connected with an annular boss 1 (154) and an annular boss 2 (155). The end face (213) of the annular protrusion 2 (211) is provided with an annular groove 1 (214) and an annular groove 2 (215). The annular boss 1 (154) can be embedded in the annular groove 1 (214), and the annular boss 2 (155) can be embedded in the annular groove 2 (215). The end face (156) of the annular boss 2 (155) abuts and limits the end face (216) of the annular groove 2 (215).

7. A gas pressure regulator with a built-in counterbalance valve according to claim 6, characterized in that A gap is reserved between the first annular boss (154) and the first annular groove (214). A sealing ring (5) is sleeved on the outer periphery of the second annular boss (155). The sealing ring (5) is embedded in the second annular groove (215) and abuts against and limits the position of the first annular boss (154).

8. A gas pressure regulator with a built-in counterbalance valve as claimed in claim 1, characterized in that, The valve stem (32) is threaded to a push rod (33) at the end away from the valve port (13), and the push rod (33) is movably connected to the main regulating valve assembly (22).

Images