Built-in driving axial flow type regulating valve

Abstract

The utility model relates to the technical field of regulating valves, and discloses a built-in driving axial flow type regulating valve which is characterized in that handheld rotating blocks are rotationally connected to the outer walls of the two sides of a rotating rod, sleeve blocks are located in the handheld rotating blocks, the rotating rod penetrates through the inner walls of the handheld rotating blocks, and movable rods are rotationally connected to the outer walls of the two sides of the rotating rod; rotating rods are rotationally connected to the inner walls of the two movable rods, sliding rods are welded to the outer walls of the rotating rods, and push blocks are welded to one ends of the sliding rods. Through the arrangement of the rotating rod and the sliding rod, when a valve switch needs to be manually adjusted, the handheld rotating block is held and pulled upwards, the rotating rod and the movable rod which are connected with the handheld rotating block rotate upwards together, and when the movable rod moves upwards, the rotating rod and the sliding rod which are connected with each other are driven to slide upwards in the flange plate and the connecting plate; when the handheld rotating block is loosened, the pressure spring rebounds to drive the pushing block and the sliding rod to reset, and the pushing block blocks one position of the pipeline to intercept liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valve equipment, in particular to a built-in driven axial flow regulating valve. Background Art

[0002] The axial flow control valve is mainly composed of a valve body, a valve core, and a valve stem. The valve body and the flanges at both ends are integrated. The valve stem is located in the inner cavity of the valve body and is driven by a control mechanism. There is no packing seal and few leakage points. It is widely used in long-distance oil and natural gas pipelines. At present, the typical structure of axial flow control valves used in the oil and gas industry at home and abroad is represented by the products of the Dutch MOKVELD company. Its valve core is controlled and operated by a 90° transmission mechanism. The angular transmission mechanism consists of a pair of meshing racks. The two racks are on the valve core rod and the valve stem respectively. The valve stem moves up and down to drive the valve core rod to move left and right, so that the valve core moves and adjusts in the sleeve.

[0003] The application number is CN201720241525.3, which discloses a built-in drive axial flow regulating valve, including a valve body, a valve core, a valve seat, and a control mechanism. A guide cover is arranged in the inner cavity of the valve body, and an annular flow channel is formed between the outer surface of the guide cover and the inner cavity wall of the valve body. The outer cylindrical surface of the valve core is dynamically sealed with the inner hole of the outlet end of the guide cover; the control mechanism mainly adopts a hydraulic control mechanism, and the hydraulic control mechanism is composed of a piston transmission device and an oil pressure control device; the oil pressure control device is composed of a flow / pressure sensor, a PID controller, a servo motor, and an oil quantity controller, and the two output ports of the oil quantity controller are respectively connected to two oil pressure joints. In addition, a damping slow closing device and a damping slow opening device are arranged in the piston transmission device to reduce the impact between the valve core and the valve seat and other components during the opening and closing process, and it has the advantages of high adjustment accuracy, long service life, low operating noise, and good sealing performance. It is suitable for control valves in working conditions such as crude oil, refined oil, and natural gas long-distance pipeline pump stations and receiving stations.

[0004] The above document discloses an internally driven axial flow regulating valve with the following defects: during the use of the regulating valve, when the oil quantity controller is damaged and cannot control the oil pipe pressure, it is necessary to control the opening and closing of the valve according to the actual oil output, but the structure cannot be manually adjusted and lacks flexibility.

[0005] It can be seen from this that the existing built-in drive axial flow regulating valve does not have the function of manually adjusting the valve switch, and it is necessary to improve the existing deficiencies and provide a function that can manually adjust the valve switch. Summary of the invention

[0006] The purpose of the utility model is to provide a built-in drive axial flow regulating valve to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a built-in driven axial flow regulating valve, comprising a valve body, a connecting structure and an adjusting structure, wherein the adjusting structure is slidably connected to the inner wall of the connecting structure, and the connecting structure is welded to the outer wall of the valve body, and the adjusting structure comprises a fixing rod, a sleeve block is welded on the outer wall of the top end of the fixing rod, a rotating rod is passed through the inner wall of the sleeve block, and hand-held rotating blocks are rotatably connected to the outer walls of both sides of the rotating rod, the sleeve block is located inside the hand-held rotating block, a rotating rod is passed through the inner wall of the hand-held rotating block, movable rods are rotatably connected to the outer walls of both sides of the rotating rod, the inner walls of the two movable rods are rotatably connected to the rotating rods, a sliding rod is welded on the outer wall of the rotating rod, and a push block is welded to one end of the sliding rod. The purpose of such arrangement is that during the use of the regulating valve, the oil inlet pipe and the oil outlet pipe are installed at the mounting holes of the flange connecting pipe one and pipe two by bolts. When the valve switch needs to be manually adjusted, hold the hand-held turning block and pull it upward. At this time, the turning rod and the movable rod connected to the hand-held turning block rotate upward together. When the movable rod moves upward, it drives the connected turning rod and the sliding rod to slide upward in the flange and the connecting plate. The sliding rod drives the push block to squeeze the compression spring to tighten. When the push block contracts inward, the valve body flows. When the hand-held turning block is released, the compression spring rebounds and drives the push block and the sliding rod to reset. The push block blocks a place in the pipeline to intercept the liquid. The sliding rod drives the movable rod and the hand-held turning block to reset together through the turning rod, thereby improving the flexibility of the regulating valve.

[0009] Furthermore, the connection structure includes a connection plate, the fixing rod is welded to the outer wall of the connection plate, and the sliding rod is slidably connected to the inner wall of the connection plate. The purpose of this arrangement is that during the use of the regulating valve, the fixing rod cooperates with the sleeve block to set the range of motion of the handheld rotating block, so that the handheld rotating block can rotate freely up and down.

[0010] Furthermore, a plurality of air-permeable grooves are provided on the outer wall around the receiving plate, and a compression spring is welded on the side of the connecting plate away from the hand-held rotating block. The purpose of such a setting is that during the use of the regulating valve, the liquid carries the air pressure through the pipe and flows into the valve. When the air pressure in the valve is too high, the push block is squeezed inward and the air pressure flows to the movable part of the sliding rod and the compression spring, and finally the excess air is discharged through the air-permeable groove.

[0011] Furthermore, the other end of the compression spring is welded to the outer wall of the push block. The purpose of this arrangement is that during the use of the regulating valve, the slide rod drives the push block to squeeze the compression spring to tighten, and when the push block shrinks inward, the valve body flows, and the compression spring rebounds to drive the push block and the slide rod to reset.

[0012] Furthermore, the valve body includes a pipe 1, and a pipe 2 is welded on the inner wall of the pipe 1. The purpose of this arrangement is that during the use of the regulating valve, the pipe 1 is the oil inlet, the pipe 2 is the oil outlet, and the diagonal structure is arranged to facilitate the sliding of the regulating structure to control the oil output.

[0013] Furthermore, a flange is welded at one end of the pipe 1 and the pipe 2, and a plurality of mounting holes are opened on the outer wall around the flange, and the slide rod and the air-permeable groove penetrate the flange. The purpose of such a setting is that during the use of the regulating valve, the oil inlet pipe and the oil outlet pipe are installed at the mounting holes of the flange connecting the pipe 1 and the pipe 2 by bolts.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model provides a rotating rod and a sliding rod. When it is necessary to manually adjust the valve switch, the user holds the hand-held rotating block and pulls it upward. At this time, the rotating rod and the movable rod connected to the hand-held rotating block rotate upward together. When the movable rod moves upward, it drives the connected rotating rod and the sliding rod to slide upward in the flange and the connecting plate. The sliding rod drives the push block to squeeze the compression spring to tighten. When the push block contracts inward, the valve body flows. When the hand-held rotating block is released, the compression spring rebounds and drives the push block and the sliding rod to reset. The push block blocks a part of the pipeline to intercept the liquid. The sliding rod drives the movable rod and the hand-held rotating block to reset together through the rotating rod, thereby improving the flexibility of the regulating valve.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the valve body structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. valve body; 101. pipe 1; 102. pipe 2; 2. connection structure; 200. mounting hole; 201. flange; 202. connection plate; 203. air vent; 3. adjustment structure; 301. fixing rod; 302. sleeve block; 303. hand-held rotating block; 304. rotating rod; 305. movable rod; 306. sliding rod; 307. compression spring; 308. push block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 - Figure 4 As shown, the utility model is a built-in driven axial flow regulating valve, comprising a valve body 1, a connecting structure 2 and an adjusting structure 3, the adjusting structure 3 is slidably connected to the inner wall of the connecting structure 2, the connecting structure 2 is welded to the outer wall of the valve body 1, the adjusting structure 3 comprises a fixed rod 301, a sleeve block 302 is welded on the outer wall of the top end of the fixed rod 301, a rotating rod 304 is penetrated on the inner wall of the sleeve block 302, hand-held rotating blocks 303 are rotatably connected to the outer walls of the rotating rod 304 on both sides, the sleeve block 302 is located inside the hand-held rotating block 303, the rotating rod 304 is penetrated on the inner wall of the hand-held rotating block 303, movable rods 305 are rotatably connected to the outer walls of the rotating rod 304 on both sides, the rotating rod 304 is rotatably connected to the inner walls of the two movable rods 305, a sliding rod 306 is welded on the outer wall of the rotating rod 304, and a push block 308 is welded to one end of the sliding rod 306. The purpose of such arrangement is that during the use of the regulating valve, the oil inlet pipe and the oil outlet pipe are installed at the mounting hole 200 of the flange 201 connecting the pipeline 101 and the pipeline 202 by bolts. When it is necessary to manually adjust the valve switch, hold the hand-held rotating block 303 and pull it upward. At this time, the rotating rod 304 and the movable rod 305 connected to the hand-held rotating block 303 rotate upward together. When the movable rod 305 moves upward, it drives the connected rotating rod 304 and the sliding rod 306 to slide upward in the flange 201 and the connecting plate 202. The sliding rod 306 drives the push block 308 to squeeze the compression spring 307 to tighten. When the push block 308 contracts inwardly, the valve body flows. When the hand-held rotating block 303 is released, the compression spring 307 rebounds and drives the push block 308 and the sliding rod 306 to reset. The push block 308 blocks the pipeline 101 to intercept the liquid. The sliding rod 306 drives the movable rod 305 and the hand-held rotating block 303 to reset together through the rotating rod 304, thereby improving the flexibility of the regulating valve.

[0026] The connection structure 2 includes a connection plate 202, a fixed rod 301 welded to the outer wall of the connection plate 202, and a sliding rod 306 slidably connected to the inner wall of the connection plate 202. The purpose of this arrangement is that during the use of the regulating valve, the fixed rod 301 cooperates with the sleeve block 302 to set the range of motion of the hand-held rotating block 303, so that the hand-held rotating block 303 can rotate freely up and down.

[0027] A plurality of venting grooves 203 are provided on the outer wall around the connection plate 202, and a compression spring 307 is welded on the side of the connection plate 202 away from the hand-held rotating block 303. The purpose of such a setting is that during the use of the regulating valve, the liquid flows into the valve through the pipeline 101 with air pressure, and when the air pressure in the valve is too high, the push block 308 is squeezed inward and the air pressure flows to the movable part of the slide rod 306 and the compression spring 307, and finally the excess air is discharged through the venting groove 203.

[0028] The other end of the compression spring 307 is welded to the outer wall of the push block 308. The purpose of this arrangement is that during the use of the regulating valve, the slide bar 306 drives the push block 308 to squeeze the compression spring 307 to tighten, and when the push block 308 contracts inward, the flow in the valve body flows, and the compression spring 307 rebounds to drive the push block 308 and the slide bar 306 to reset.

[0029] The valve body 1 includes a pipe 101, and a pipe 2 102 is welded on the inner wall of the pipe 101. The purpose of this arrangement is that during the use of the regulating valve, the pipe 101 is the oil inlet, the pipe 2 102 is the oil outlet, and the diagonal structure is arranged to facilitate the sliding of the regulating structure 3 to control the oil output.

[0030] One end of the pipe 101 and the pipe 2 102 is welded with a flange 201, and a plurality of mounting holes 200 are provided on the outer wall around the flange 201, and the slide rod 306 and the venting groove 203 penetrate the flange 201. The purpose of such a setting is that during the use of the regulating valve, the oil inlet pipe and the oil outlet pipe are bolted to the mounting holes 200 of the flange 201 connected to the pipe 1 101 and the pipe 2 102.

[0031] When in use, during the use of the regulating valve, the oil inlet pipe and the oil outlet pipe are installed at the mounting hole 200 of the flange 201 connecting the pipeline 101 and the pipeline 202 by bolts. When it is necessary to manually adjust the valve switch, hold the hand-held rotating block 303 and pull it upward. At this time, the rotating rod 304 and the movable rod 305 connected to the hand-held rotating block 303 rotate upward together. When the movable rod 305 moves upward, it drives the connected rotating rod 304 and the sliding rod 306 to slide upward in the flange 201 and the connecting plate 202. The sliding rod 306 drives the push block 308 to squeeze the compression spring 307 to tighten. When the push block 308 contracts inwardly, the valve body flows. When the hand-held rotating block 303 is released, the compression spring 307 rebounds and drives the push block 308 and the sliding rod 306 to reset. The push block 308 blocks the pipeline 101 to intercept the liquid. The sliding rod 306 drives the movable rod 305 and the hand-held rotating block 303 to reset together through the rotating rod 304, thereby improving the flexibility of the regulating valve.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An internally driven axial flow regulating valve, comprising a valve body (1), a connecting structure (2) and a regulating structure (3), characterized in that: The regulating structure (3) is slidably connected to the inner wall of the connecting structure (2), and the connecting structure (2) is welded to the outer wall of the valve body (1). The regulating structure (3) comprises a fixed rod (301), a sleeve block (302) is welded to the outer wall of the top end of the fixed rod (301), a rotating rod (304) penetrates the inner wall of the sleeve block (302), hand-held rotating blocks (303) are rotatably connected to the outer walls of both sides of the rotating rod (304), the sleeve block (302) is located inside the hand-held rotating block (303), a rotating rod (304) penetrates the inner wall of the hand-held rotating block (303), movable rods (305) are rotatably connected to the outer walls of both sides of the rotating rod (304), the inner walls of the two movable rods (305) are rotatably connected to the rotating rods (304), a sliding rod (306) is welded to the outer wall of the rotating rod (304), and a push block (308) is welded to one end of the sliding rod (306).

2. The internally driven axial flow regulating valve according to claim 1, characterized in that: The connection structure (2) comprises a connection disk (202), the fixing rod (301) is welded to the outer wall of the connection disk (202), and the sliding rod (306) is slidably connected to the inner wall of the connection disk (202).

3. The internally driven axial flow regulating valve according to claim 2, characterized in that: A plurality of air-permeable grooves (203) are provided on the outer walls around the connecting plate (202), and a compression spring (307) is welded on a side of the connecting plate (202) away from the hand-held rotating block (303).

4. The internally driven axial flow regulating valve according to claim 3, characterized in that: The other end of the compression spring (307) is welded to the outer wall of the push block (308).

5. The internally driven axial flow regulating valve according to claim 1, characterized in that: The valve body (1) comprises a pipe 1 (101), and a pipe 2 (102) is welded to the inner wall of the pipe 1 (101).

6. The internally driven axial flow regulating valve according to claim 5, characterized in that: A flange (201) is welded to one end of the pipe 1 (101) and the pipe 2 (102), a plurality of mounting holes (200) are provided on the outer wall around the flange (201), and the sliding rod (306) and the venting groove (203) pass through the flange (201).

Images