CN213982035U

CN213982035U - High-temperature high-pressure reducing valve for thermoelectric transmission system

Info

Publication number: CN213982035U
Application number: CN202022807021.8U
Authority: CN
Inventors: 曾山; 倪蓁蓁
Original assignee: Jiangsu Yanfu Power Station Valve & Auxiliary Device Manufacture Co ltd
Current assignee: Jiangsu Yanfu Power Station Valve & Auxiliary Device Manufacture Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-17
Anticipated expiration: 2030-11-27

Abstract

The invention discloses a high-temperature high-pressure reducing valve for a thermoelectric transmission system, which comprises a valve body and a valve cover, wherein the valve cover is fixed with the valve body through a bolt; the filter assembly comprises a trapezoidal filter frame and an L-shaped baffle plate, a connecting pipe and a liquid inlet pipe are fixed through an installation block, liquid enters the inside of the filter frame through the liquid inlet pipe, impurities in a medium are filtered through the filter frame, the impurities enter a space between a valve core and a channel, and the damage to the device caused by the fact that the impurities block the space between the valve core and the channel is reduced to a certain extent.

Description

High-temperature high-pressure reducing valve for thermoelectric transmission system

Technical Field

The invention belongs to the technical field of pressure reducing valves, and particularly relates to a high-temperature high-pressure reducing valve for a thermoelectric transmission system.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by regulation and automatically keeps the outlet pressure stable by the energy of a medium, and from the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with changeable local resistance, namely, the flow rate and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction; then, the fluctuation of the pressure behind the valve is balanced with the spring force by means of the adjustment of the control and adjustment system, so that the pressure behind the valve is kept constant within a certain error range; the high-temperature high-pressure reducing valve is usually installed in a pipeline and is mainly used for stabilizing the outlet pressure within a set range and ensuring that the pressure of an outlet is not changed due to the change of the inlet pressure.

However, in the prior art, some high temperature high pressure relief valves do not have the function of filtration purification usually, and the back is opened to the valve, in impurity in the medium also can gush into the passageway in the lump, can't guarantee whether the medium that passes through is clean free of impurity, and impurity can also cause the jam between case and the passageway in the time of a long time, causes the device to damage, and some impurity after having the high temperature high pressure relief valve of filtration purification function filters is not convenient for clear up in addition, brings inconvenience for the use of high temperature high pressure relief valve.

Therefore, the high-temperature high-pressure reducing valve for the thermoelectric transmission system is provided to solve the problems in the prior art, has the functions of filtering and purifying, avoids blockage between a valve core and a channel caused by a medium, and is convenient for cleaning impurities after filtering.

Disclosure of Invention

The invention aims to provide a high-temperature high-pressure reducing valve for a thermoelectric transmission system, and aims to solve the problems that in the prior art, because some high-temperature high-pressure reducing valves do not have the filtering and purifying functions usually, after a valve is opened, impurities in a medium can also flow into a channel together, whether the passing medium is clean or not cannot be guaranteed, the impurities can cause blockage between a valve core and the channel over time, the device is damaged, and the impurities filtered by some high-temperature high-pressure reducing valves with the filtering and purifying functions are inconvenient to clean, and the use of the high-temperature high-pressure reducing valves is inconvenient.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-temperature high-pressure reducing valve for a thermoelectric transmission system comprises a valve body and a valve cover, wherein the valve cover is fixed with the valve body through a bolt, a fixing bolt is arranged at the upper end of the valve cover, a compression spring is arranged in the valve cover, two ends of the compression spring are respectively connected with one end of the fixing bolt and one end of the valve body through fixing blocks, one side wall of each fixing block is provided with a diaphragm, a flow channel is arranged in the valve body, a valve rod is arranged in the flow channel, one end of the valve rod is provided with a valve core, the other end of the valve rod is connected with the valve body in a sliding mode, the valve core is connected with one side of the flow channel in a sliding mode, one end of the flow channel is provided with a liquid outlet pipe, the other end of the flow channel is provided with a detachable liquid inlet assembly, the liquid inlet assembly is connected with the valve body in a sliding mode, and the liquid inlet assembly is fixed with the valve body through a bolt, be provided with first sealing washer between feed liquor subassembly and the valve body, the one end of feed liquor subassembly is provided with detachable filtering component, the other end of feed liquor subassembly and the one end of drain pipe all are provided with the installation piece that has seal assembly.

Preferably, the liquid inlet component comprises a liquid inlet pipe and a supporting block, the liquid inlet pipe is embedded and fixed on the supporting block, one end of the liquid inlet pipe is fixed with one side of the mounting block, and a first groove for the supporting block to be placed in is formed in one side of the valve body.

Preferably, the lateral wall symmetry of supporting shoe is provided with two limiting plates, the lateral wall of first recess is seted up and is supplied two the second recess that the limiting plate got into, just the limiting plate passes through the bolt and fixes with the inner wall of second recess, set up the screw that supplies the one end spiro union of bolt on the limiting plate.

Preferably, the first sealing ring is located inside the first groove, a notch for the first sealing ring to be sleeved is formed in one end of the supporting block, and a through hole for one end of the supporting block to pass through is formed in one side of the first groove.

Preferably, the other end of the supporting block is provided with a handrail, and the handrail is positioned below the mounting block.

Preferably, six mounting holes are formed in the mounting block, a through hole communicated with the liquid inlet pipe is formed in the mounting block, and the sealing assembly is located inside the through hole.

Preferably, the sealing assembly is a second sealing ring, a groove for the second sealing ring to be fixedly embedded is formed in the other side of the mounting block, and an internal thread is formed in the side wall of the groove.

Preferably, the filtering component comprises a trapezoidal filtering frame and an L-shaped baffle, one end of the baffle is rotatably connected with the filtering frame, the other end of the baffle is fixed with the filtering frame through a positioning pin, and the other end of the liquid inlet pipe is positioned inside the filtering frame.

Preferably, the lower end of the filter frame is provided with a third groove for the baffle to be embedded, one side of the third groove is provided with a discharge hole, the inner wall of the lower end of the filter frame is obliquely arranged, the discharge hole is positioned at the center of the filter frame, the side wall of the filter frame is provided with a convex block, the convex block is provided with a counter bore for the bolt to be embedded, and one end of the support block is provided with a threaded blind hole for the bolt to be screwed.

Preferably, the through-hole that supplies the one end of locating pin to pass is seted up to the other end lateral wall of baffle, the one end lateral wall of locating pin is provided with the external screw thread section, the one end spiro union that supplies the locating pin is seted up to the lateral wall of filtering the frame has the screw thread blind hole.

Compared with the prior art, the high-temperature high-pressure reducing valve for the thermoelectric transmission system has the following advantages that:

1. the invention mainly arranges a detachable liquid inlet component fixed on one side of a valve body through a bolt, one end of the liquid inlet component is fixed with a detachable filter component through a bolt, the filter component comprises a trapezoidal filter frame and an L-shaped baffle plate, one end of the baffle plate is rotationally connected with the filter frame, the other end of the baffle plate is fixed with the filter frame through a positioning pin, the other end of the liquid inlet component is fixed with a mounting block, six mounting holes are arranged on the mounting block, and one side of the mounting block is provided with a through hole communicated with the liquid inlet pipe, a second sealing ring is embedded in the through hole, the connecting pipe is fixed with the liquid inlet pipe through the mounting block, liquid enters the interior of the filtering frame through the liquid inlet pipe, impurities in the medium are filtered through the filter frame, so that the impurities are prevented from entering between the valve core and the channel, and the damage to the device caused by the blockage between the valve core and the channel by the impurities is reduced to a certain extent;

2. according to the invention, the liquid inlet assembly and the valve body are fixed through the bolt, the filtering assembly and the liquid inlet assembly are fixed through the bolt, one side of the liquid inlet assembly is provided with the handrail, the bolt connected with the valve body is disassembled, the liquid inlet assembly is pulled out through the handrail, so that the liquid inlet assembly drives the filtering assembly to be far away from the valve body, the baffle and the filtering frame are vertically arranged through disassembling the positioning pin on the baffle, filtered impurities are discharged through the discharge hole, the impurities can be cleaned without disassembling the filtering assembly, and convenience is brought to the use of the high-temperature high-pressure reducing valve to a certain extent.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the filter assembly of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic structural diagram of a liquid inlet assembly of the present invention;

FIG. 5 is a schematic top view of the liquid inlet assembly of the present invention;

FIG. 6 is a side view of the filter assembly;

in the figure: 1. a valve cover; 2. a valve body; 3. fixing the bolt; 4. a fixed block; 5. a compression spring; 6. a membrane; 7. a valve stem; 8. a flow channel; 9. a liquid outlet pipe; 10. a valve core; 11. mounting blocks; 12. a support block; 13. a liquid inlet pipe; 14. a limiting plate; 15. a handrail; 16. a filter assembly; 17. a first seal ring; 18. a first groove; 19. a second groove; 20. mounting holes; 21. a second seal ring; 22. a notch; 23. a bump; 24. a filter frame; 25. a baffle plate; 26. a discharge hole; 27. a third groove; 28. a screw hole; 29. positioning pins; 30. and a liquid inlet assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a high-temperature high-pressure reducing valve for a thermoelectric transmission system, which comprises a valve body 2 and a valve cover 1, wherein the valve cover 1 is fixed with the valve body 2 through bolts, the upper end of the valve cover 1 is provided with a fixing bolt 3, the interior of the valve cover 1 is provided with a compression spring 5, two ends of the compression spring 5 are respectively connected with one end of the fixing bolt 3 and one end of the valve body 2 through a fixing block 4, the side wall of one fixing block 4 is provided with a diaphragm 6, the interior of the valve body 2 is provided with a flow channel 8, the interior of the flow channel 8 is provided with a valve rod 7, one end of the valve rod 7 is provided with a valve core 10, the other end of the valve rod 7 is connected with the valve body 2 in a sliding way, the valve core 10 is connected with one side of the flow channel 8 in a sliding way, one end of the flow channel 8 is provided with a liquid outlet pipe 9, the other end of the flow channel 8 is provided with a detachable liquid inlet assembly 30, and the liquid inlet assembly 30 is connected with the valve body 2 in a sliding way, the liquid inlet assembly 30 is fixed with the valve body 2 through a bolt, a first sealing ring 17 is arranged between the liquid inlet assembly 30 and the valve body 2, a detachable filtering assembly 16 is arranged at one end of the liquid inlet assembly 30, and mounting blocks 11 with sealing assemblies are arranged at the other end of the liquid inlet assembly 30 and one end of the liquid outlet pipe 9;

the sealing assembly is arranged to be a second sealing ring 21, the other side of the mounting block 11 is provided with a groove for the second sealing ring 21 to be embedded and fixed, the side wall of the groove is provided with internal threads, the mounting block 11 is convenient to be connected with a water pipe with an outer wall in a threaded arrangement, the mounting block 11 is provided with six mounting holes 20, the mounting block 11 is provided with a through hole communicated with the liquid inlet pipe 13, the sealing assembly is positioned in the through hole, the mounting block 11 is convenient to be fixed with a smooth joint water pipe with a flange structure through the six mounting holes 20, so that the pressure reducing valve is suitable for the connection of water pipes with different joints, the second sealing ring 21 is used for increasing the sealing property between the connecting pipe and the liquid inlet assembly 30, and reducing the overflow of liquid from gaps;

the liquid inlet component 30 comprises a liquid inlet pipe 13 and a supporting block 12, the liquid inlet pipe 13 is embedded and fixed on the supporting block 12, one end of the liquid inlet pipe 13 is fixed with one side of the mounting block 11, and one side of the valve body 2 is provided with a first groove 18 for the supporting block 12 to be placed in, so that the supporting block 12 can be mounted and taken out conveniently;

two limit plates 14 are symmetrically arranged on the side wall of the support block 12, a second groove 19 for the two limit plates 14 to enter is formed in the side wall of the first groove 18, the limit plates 14 are fixed to the inner wall of the second groove 19 through bolts, a screw hole 28 for one end of each bolt to be screwed is formed in each limit plate 14, and the support block 12 is fixed inside the first groove 18 through the limit plates 14;

the first sealing ring 17 is located inside the first groove 18, one end of the supporting block 12 is provided with a notch 22 for the first sealing ring 17 to be sleeved, one side of the first groove 18 is provided with a through hole for one end of the supporting block 12 to pass through, and the first sealing ring 17 is used for increasing the sealing property between the supporting block 12 and the valve body 2 and avoiding liquid from overflowing from a gap between the supporting block 12 and the valve body 2;

the other end of the supporting block 12 is provided with a handrail 15, the handrail 15 is positioned below the mounting block 11, the bolt on the limiting plate 14 is disassembled, the supporting block 12 can be pulled out of the valve body 2 through the handrail 15, so that the supporting block 12 drives the filtering component 16 to move out of the valve body 2, and impurities filtered in the filtering component 16 can be cleaned conveniently;

the filtering component 16 comprises a trapezoid filtering frame 24 and an L-shaped baffle 25, one end of the baffle 25 is rotatably connected with the filtering frame 24, the other end of the baffle 25 is fixed with the filtering frame 24 through a positioning pin 29, the other end of the liquid inlet pipe 13 is positioned inside the filtering frame 24, so that liquid can enter the filtering frame 24 through the liquid inlet pipe 13, the liquid can be filtered through the filtering frame 24, impurities in the liquid are removed, and the lower end of the trapezoid filtering frame 24 is used for collecting the filtered impurities, so that the phenomenon that the impurities block meshes of the filtering frame 24 and influence the filtering effect is reduced;

the lower end of the filter frame 24 is provided with a third groove 27 for the baffle 25 to be embedded, one side of the third groove 27 is provided with a discharge hole 26, the inner wall of the lower end of the filter frame 24 is obliquely arranged, the discharge hole 26 is positioned at the center of the filter frame 24, so that impurities in the filter frame 24 can be conveniently concentrated to the discharge hole 26, and the impurities can be conveniently discharged out of the filter frame 24 through the discharge hole 26;

the side wall of the other end of the baffle plate 25 is provided with a through hole for one end of the positioning pin 29 to pass through, the side wall of one end of the positioning pin 29 is provided with an external thread section, the side wall of the filter frame 24 is provided with a threaded blind hole for one end of the positioning pin 29 to be screwed, and by disassembling the positioning pin 29, one end of the baffle plate 25 is vertical below the filter frame 24 due to no supporting force, so that impurities in the filter frame 24 can be conveniently cleaned;

the lateral wall of the filter frame 24 is provided with a convex block 23, the convex block 23 is provided with a countersunk hole for the bolt to be embedded, one end of the supporting block 12 is provided with a threaded blind hole for the bolt to be screwed, and the filter frame 24 is detachably arranged, so that the filter frames with different mesh sizes can be replaced according to actual requirements.

The working principle is as follows: during operation, the filter assembly 16 is installed at one end of the liquid inlet assembly 30 through a bolt, the liquid inlet assembly 30 and the filter assembly 16 are installed inside the first groove 18, the liquid inlet assembly 30 is fixed inside the first groove 18 through the bolt, the filter assembly 16 comprises a trapezoidal filter frame 24 and an L-shaped baffle plate 25, one end of the baffle plate 25 is rotatably connected with the filter frame 24, the other end of the baffle plate 25 is fixed with the filter frame 24 through a positioning pin 29, a connecting pipe is fixed with the liquid inlet pipe 13 through the installation block 11, liquid enters the inside of the filter frame 24 through the liquid inlet pipe 13, impurities in media are filtered through the filter frame 24, the impurities enter between the valve core and the channel, and damage to the device caused by the fact that the impurities block the valve core and the channel is reduced to a certain extent;

when 16 impurity clearance of filter assembly, pull out feed liquor subassembly 30 through handrail 15, make feed liquor subassembly 30 drive filter assembly 16 and keep away from valve body 2, through dismantling locating pin 29 on baffle 25, make baffle 25 be perpendicular setting with filter frame 24, impurity after the filtration passes through discharge opening 26 and discharges, need not dismantle filter assembly 16 and can carry out the clearance of impurity, and it is convenient to bring for the use of high temperature high pressure relief pressure valve to a certain extent.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A high temperature and high pressure reducing valve for a thermoelectric transmission system, comprising a valve body (2) and a valve cover (1), characterized in that: the valve cover (1) is fixed with the valve body (2) through a bolt, the upper end of the valve cover (1) is provided with a fixing bolt (3), a compression spring (5) is arranged inside the valve cover (1), two ends of the compression spring (5) are respectively connected with one end of the fixing bolt (3) and one end of the valve body (2) through fixing blocks (4), the side wall of one fixing block (4) is provided with a diaphragm (6), the inside of the valve body (2) is provided with a flow channel (8), the inside of the flow channel (8) is provided with a valve rod (7), one end of the valve rod (7) is provided with a valve core (10), the other end of the valve rod (7) is connected with the valve body (2) in a sliding manner, the valve core (10) is connected with one side of the flow channel (8) in a sliding manner, one end of the flow channel (8), the other end of flow channel (8) is provided with detachable feed liquor subassembly (30), feed liquor subassembly (30) and valve body (2) sliding connection, just feed liquor subassembly (30) are fixed through bolt and valve body (2), be provided with first sealing washer (17) between feed liquor subassembly (30) and valve body (2), the one end of feed liquor subassembly (30) is provided with detachable filtering component (16), the other end of feed liquor subassembly (30) and the one end of drain pipe (9) all are provided with installation piece (11) that have sealing component.

2. A high-temperature, high-pressure relief valve for a thermoelectric transmission system according to claim 1, wherein: the liquid inlet assembly (30) comprises a liquid inlet pipe (13) and a supporting block (12), the liquid inlet pipe (13) is embedded and fixed on the supporting block (12), one end of the liquid inlet pipe (13) is fixed with one side of the mounting block (11), and one side of the valve body (2) is provided with a first groove (18) for placing the supporting block (12).

3. A high-temperature, high-pressure relief valve for a thermoelectric transmission system according to claim 2, wherein: the lateral wall symmetry of supporting shoe (12) is provided with two limiting plate (14), the confession is two offered to the lateral wall of first recess (18) second recess (19) that limiting plate (14) got into, just limiting plate (14) are fixed through the inner wall of bolt with second recess (19), offer screw (28) that supply the one end spiro union of bolt on limiting plate (14).

4. A high-temperature, high-pressure relief valve for a thermoelectric transmission system according to claim 3, wherein: the first sealing ring (17) is located inside the first groove (18), one end of the supporting block (12) is provided with a notch (22) for the first sealing ring (17) to be sleeved, and one side of the first groove (18) is provided with a through hole for one end of the supporting block (12) to pass through.

5. A high-temperature, high-pressure relief valve for a thermoelectric transmission system according to claim 4, wherein: the other end of the supporting block (12) is provided with a handrail (15), and the handrail (15) is positioned below the mounting block (11).

6. A high-temperature, high-pressure relief valve for a thermoelectric transmission system according to claim 5, wherein: six mounting holes (20) are formed in the mounting block (11), a through hole communicated with the liquid inlet pipe (13) is formed in the mounting block (11), and the sealing assembly is located inside the through hole.

7. A high-temperature, high-pressure relief valve for a thermoelectric transmission system according to claim 6, wherein: the sealing assembly is arranged to be a second sealing ring (21), a groove for the second sealing ring (21) to be embedded and fixed is formed in the other side of the mounting block (11), and an internal thread is formed in the side wall of the groove.

8. A high-temperature, high-pressure relief valve for a thermoelectric transmission system according to claim 7, wherein: the filter assembly (16) comprises a trapezoid filter frame (24) and an L-shaped baffle plate (25), one end of the baffle plate (25) is rotatably connected with the filter frame (24), the other end of the baffle plate (25) is fixed with the filter frame (24) through a positioning pin (29), and the other end of the liquid inlet pipe (13) is positioned inside the filter frame (24).

9. A high-temperature, high-pressure relief valve for a thermoelectric transmission system as recited in claim 8, wherein: the lower extreme of filtering frame (24) is seted up and is supplied baffle (25) to inlay third recess (27) of adorning, discharge opening (26) have been seted up to one side of third recess (27), the inner wall of filtering frame (24) lower extreme is the slope setting, discharge opening (26) are located the center of filtering frame (24), the lateral wall of filtering frame (24) is provided with lug (23), set up the counter sink that supplies the bolt to inlay the dress on lug (23), the screw thread blind hole that supplies the bolt spiro union is seted up to the one end of supporting shoe (12).

10. A high-temperature, high-pressure relief valve for a thermoelectric transmission system according to claim 9, wherein: the through-hole that supplies one end of locating pin (29) to pass is seted up to the other end lateral wall of baffle (25), the one end lateral wall of locating pin (29) is provided with the external screw thread section, the one end spiro union that supplies locating pin (29) has the screw thread blind hole seted up to the lateral wall of filter frame (24).