High-temperature self-operated pressure control valve

Abstract

The high-temperature self-operated pressure control valve comprises a valve body and a backflow pipe, conveying pipes are symmetrically and fixedly connected to the two sides of the annular outer surface of the valve body, a flange plate is fixedly installed on the side face of each conveying pipe, and four installation holes are evenly formed in the side face of each flange plate. Wherein a P1 opening is formed in the side face of one conveying pipe in a penetrating mode, a P2 opening is formed in the side face of the other conveying pipe in a penetrating mode, a movable groove is formed in the upper surface of the valve body, a first connector is fixedly connected to the upper surface of the valve body, and a shifting piece is fixedly connected to the upper surface of the first connector; the upper surface of the shifting piece is fixedly connected with a second connector, and one end of the hexagon bolt is in threaded connection with a hexagon nut. The high-temperature alarm device has the advantages that by arranging the high-temperature alarm report, when the temperature exceeds a preset value set by the high-temperature alarm report, the high-temperature alarm report can give an alarm to remind people, and unnecessary accidents are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a high-temperature self-acting pressure control valve. Background Art

[0002] High-temperature self-operated pressure control valve is an important industrial valve. Its working principle is based on the balance between medium pressure and spring reaction force. It has the characteristics of no need for external energy, strong comprehensive functions and wide application range. It is widely used in industrial fields such as high-temperature and high-pressure steam pipelines.

[0003] The high-temperature self-operated pressure control valves in the prior art are generally unable to detect the temperature of the gas or liquid in the pipeline, and are unable to issue high-temperature danger alarms to people. If no alarm is issued, unnecessary accidents are likely to occur. Utility Model Content

[0004] The utility model aims to solve the problems raised in the above-mentioned background technology and proposes a high-temperature self-acting pressure control valve.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-temperature self-operated pressure control valve comprises a valve body and a return pipe, the annular outer surface of the valve body is symmetrically fixedly connected with a delivery pipe on both sides, the side of the delivery pipe is fixedly installed with a flange, and the side of the flange is evenly provided with four mounting holes, one of the sides of the delivery pipe is penetrated with a P1 port, and the other side of the delivery pipe is penetrated with a P2 port, the upper surface of the valve body is provided with a movable groove, one side of the movable groove is connected to the P1 port, and the other side of the movable groove is connected to the P2 port, and a diverter groove is provided in the valve body, and a diverter is provided between the P1 port and the movable groove. The grooves are connected, the upper surface of the valve body is fixedly connected with a first joint, the upper surface of the first joint is fixedly connected with a paddle, the upper surface of the paddle is fixedly connected with a second joint, a hexagonal bolt is rotatably connected through the first joint and the second joint, one end of the hexagonal bolt is threadedly connected with a hexagonal nut, the upper surface of the second joint is fixedly connected with a common joint, and a multifunctional joint is fixedly connected to the annular side of the other delivery pipe, a high temperature alarm meter is fixedly connected to the upper surface of the multifunctional joint, and the side of the multifunctional joint and the upper surface of the common joint are connected through a reflux pipe.

[0007] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the lower surface of the paddle is fixedly connected to a fixed rod, the lower surface of the fixed rod is provided with a sliding groove, a telescopic rod is slidably connected in the sliding groove, one end of the telescopic rod is fixedly connected to a valve core, the valve core is slidably connected in a movable groove, a spring is slidably connected on the fixed rod, one end of the spring is fixedly connected to the lower surface of the paddle, and the other end of the spring is fixedly connected to the upper surface of the valve core.

[0008] The utility model has the advantages that, by setting a high temperature alarm meter, when the temperature exceeds a preset value set by the high temperature alarm meter, the high temperature alarm meter will sound an alarm to remind people and prevent unnecessary accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a structural schematic diagram of a high-temperature self-operated pressure control valve proposed by the utility model;

[0010] Figure 2 This is a schematic cross-sectional structure diagram of a high-temperature self-operated pressure control valve proposed by the utility model;

[0011] Figure 3 The utility model is a schematic diagram of a joint structure of a high-temperature self-operated pressure control valve.

[0012] In the figure: 1 valve body, 2 delivery pipe, 3 flange, 4 mounting hole, 5 multi-function joint, 6 high temperature alarm meter, 7 return pipe, 8 ordinary joint, 9 first joint, 10 P1 port, 11 diverter groove, 12 movable groove, 13 valve core, 14 P2 port, 15 telescopic rod, 16 spring, 17 fixing rod, 18 slide groove, 19 paddle, 20 second joint, 21 hexagonal bolt, 22 hexagonal nut. DETAILED DESCRIPTION

[0013] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Reference Figure 1-Figure 3As shown, a high-temperature self-operated pressure control valve comprises a valve body 1 and a return pipe 7, a delivery pipe 2 is symmetrically fixedly connected to both sides of the annular outer surface of the valve body 1, a flange 3 is fixedly installed on the side of the delivery pipe 2, four mounting holes 4 are evenly provided on the side of the flange 3, and the pipelines on both sides of the valve body and other pipelines can be connected through the four mounting holes 4 to achieve the effect of mutual communication, a P1 port 10 is penetrated through the side of one of the delivery pipes 2, and a P2 port 14 is penetrated through the side of the other delivery pipe 2, a movable groove 12 is provided on the upper surface of the valve body 1, one side of the movable groove 12 is connected to the P1 port 10, and the other side of the movable groove 12 is connected to the P2 port 14, a diverter groove 11 is provided in the valve body 1, the P1 port 10 and the movable groove 12 are connected through the diverter groove 11, when gas or liquid flows into the P1 port 10, the gas or liquid The gas or liquid flows into the movable groove 12 through the diverter groove 11. At this time, the pressure below the valve core 13 is greater than the pressure above the valve core 13, thereby opening the valve to achieve mutual communication. The upper surface of the second joint 20 is fixedly connected with a common joint 8, and the annular side of another delivery pipe 2 is fixedly connected with a multifunctional joint 5. The upper surface of the multifunctional joint 5 is fixedly connected with a high-temperature alarm gauge 6. The side of the multifunctional joint 5 and the upper surface of the common joint 8 are connected through the return pipe 7. When gas or liquid flows into the P2 port 14, the gas or liquid will enter the top of the valve core 13 through the return pipe 7, so that the valve core 13 moves downward under the action of the pressure difference, thereby closing the valve. By setting the high-temperature alarm gauge 6, when the temperature exceeds the preset value set by the high-temperature alarm gauge 6, the high-temperature alarm gauge 6 will sound an alarm to remind people and prevent unnecessary accidents.

[0015] A first joint 9 is fixedly connected to the upper surface of the valve body 1, a paddle 19 is fixedly connected to the upper surface of the first joint 9, a second joint 20 is fixedly connected to the upper surface of the paddle 19, a hexagonal bolt 21 is rotatably connected through the first joint 9 and the second joint 20, one end of the hexagonal bolt 21 is threadedly connected to a hexagonal nut 22, a fixing rod 17 is fixedly connected to the lower surface of the paddle 19, a slide groove 18 is provided on the lower surface of the fixing rod 17, a telescopic rod 15 is slidably connected in the slide groove 18, one end of the telescopic rod 15 is fixedly connected to the valve core 13, a spring 16 is slidably connected to the fixing rod 17, one end of the spring 16 is fixedly connected to the lower surface of the paddle 19, and the other end of the spring 16 is fixedly connected to the upper surface of the valve core 13, the valve core 13 is slidably connected in the movable groove 12, and the paddle 19 drives the spring 16 to move up and down through the different pressure differences above and below the valve core 13, thereby realizing pressure regulation.

[0016] When gas or liquid flows into the P1 port 10, the gas or liquid will enter the movable groove 12 through the diverter groove 11. At this time, the pressure below the valve core 13 is greater than the pressure above the valve core 13, thereby opening the valve to achieve intercommunication. When gas or liquid flows into the P2 port 14, the gas or liquid will enter the top of the valve core 13 through the reflux pipe 7, causing the valve core 13 to move downward under the action of the pressure difference, thereby closing the valve. The different pressure differences above and below the valve core 13 are used to drive the spring 16 to move up and down through the paddle 19, thereby achieving pressure regulation. The gas or liquid will pass through the multi-functional connector 5, and the high temperature alarm meter 6 will detect whether the temperature is too high. When the temperature exceeds the preset value set by the high temperature alarm meter 6, the high temperature alarm meter 6 will sound an alarm to remind people and prevent unnecessary accidents.

Claims

1. A high-temperature self-operated pressure control valve, comprising a valve body (1) and a return pipe (7), characterized in that: The annular outer surface of the valve body (1) is symmetrically fixedly connected to the delivery pipe (2) on both sides, and the side of the delivery pipe (2) is fixedly mounted with a flange (3), and the side of the flange (3) is evenly provided with four mounting holes (4), one of which is provided with a P1 port (10) through the side of the delivery pipe (2), and the other is provided with a P2 port (14) through the side of the delivery pipe (2). The upper surface of the valve body (1) is provided with a movable groove (12), one side of the movable groove (12) is connected to the P1 port (10), and the other side of the movable groove (12) is connected to the P2 port (14). The valve body (1) is provided with a diverter groove (11), and the P1 port (10) and the movable groove (12) are connected via the diverter groove (11). A first joint (9) is fixedly connected to the upper surface of the body (1), a paddle (19) is fixedly connected to the upper surface of the first joint (9), a second joint (20) is fixedly connected to the upper surface of the paddle (19), a hexagonal bolt (21) is rotatably connected through the first joint (9) and the second joint (20), one end of the hexagonal bolt (21) is threadedly connected to a hexagonal nut (22), a common joint (8) is fixedly connected to the upper surface of the second joint (20), a multifunctional joint (5) is fixedly connected to the annular side surface of the other delivery pipe (2), a high temperature alarm meter (6) is fixedly connected to the upper surface of the multifunctional joint (5), and the side surface of the multifunctional joint (5) and the upper surface of the common joint (8) are connected via a return pipe (7).

2. A high temperature self-operated pressure control valve according to claim 1, characterized in that: The lower surface of the paddle (19) is fixedly connected to a fixed rod (17), the lower surface of the fixed rod (17) is provided with a slide groove (18), a telescopic rod (15) is slidably connected in the slide groove (18), one end of the telescopic rod (15) is fixedly connected to a valve core (13), the valve core (13) is slidably connected in the movable groove (12), and a spring (16) is slidably connected to the fixed rod (17), one end of the spring (16) is fixedly connected to the lower surface of the paddle (19), and the other end of the spring (16) is fixedly connected to the upper surface of the valve core (13).

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