CN211145384U

CN211145384U - Hydraulic seal regulating valve

Info

Publication number: CN211145384U
Application number: CN201922128333.3U
Authority: CN
Inventors: 余正华
Original assignee: Yongjia Ruijie Valve Manufacturing Co ltd
Current assignee: Yongjia Ruijie Valve Manufacturing Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-07-31
Anticipated expiration: 2029-12-02

Abstract

The utility model discloses a hydraulic sealing regulating valve, which comprises a tee joint, an upper valve plate movably opening and closing the tee joint, a lower valve plate fixedly arranged at the lower opening of the tee joint, a valve rod and a hydraulic actuator, wherein the lower end of the lower valve plate is provided with a mounting seat, the hydraulic actuator is arranged on the mounting seat and is connected with one end of the valve rod, the other end of the valve rod is connected with the upper valve plate, the mounting seat comprises a first supporting plate, a second supporting plate, a clapboard and a strut, the first supporting plate is connected with the lower valve plate through the clapboard, the second supporting plate is connected with the first supporting plate through the strut, the hydraulic actuator is arranged on the second supporting plate, the first supporting plate is provided with a guide sleeve, the lower valve plate is sleeved with a packing box in a sealing way, a copper sleeve and a packing box body are sleeved in the packing box, the copper sleeve and the packing box body are tightly sleeved with the valve rod, a caulking groove is arranged, the copper sleeve and the packing sleeve body are tightly sleeved with the valve rod, so that the sealing property between the valve rod and the tee joint is ensured.

Description

Hydraulic seal regulating valve

Technical Field

The utility model relates to a valve field, more specifically the utility model relates to a hydraulic seal governing valve that says so.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit. The valve is driven or made to move up and down, slide, swing or rotate by an automatic mechanism, so that the size of the flow passage area is changed to realize the control function, and in the prior art, the pneumatic single-seat regulating valve has the following defects: 1. the transmission stroke of the valve rod in the tee joint is long, so that the sealing performance between the valve rod and the interior of the tee joint is poor, and the good sealing performance of the whole tee joint cannot be guaranteed; 2. because the inside last valve plate of tee bend receives the impact action of fluid for a long time, especially is in the environment that has corrosive fluid, goes up the valve plate and can produce wearing and tearing very easily, when pushing the valve rod through adopting pneumatic actuator, because the stroke of valve rod is fixed all the time, so can lead to going up can not producing inseparable cooperation between valve plate and the disk seat to need the last valve plate of renewal, reduced the use durability and the whole sealing accuracy of valve like this.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a hydraulic seal governing valve should surge through the executor that surges and drive the motion of valve rod and control opening and shutting of going up the valve plate, closely cup joints the leakproofness of having guaranteed between valve rod and the tee bend through the copper sheathing and the packing cover body and valve rod.

In order to achieve the above purpose, the utility model provides a following technical scheme: a hydraulic seal regulating valve comprises a tee joint, an upper valve plate, a lower valve plate, a valve rod and a hydraulic actuator, wherein the upper valve plate is movably used for opening and closing the upper opening of the tee joint, the lower valve plate is fixedly arranged on the lower opening of the tee joint, the lower end face of the lower valve plate is provided with a mounting seat, the hydraulic actuator is arranged on the mounting seat, one end of the output shaft of the hydraulic actuator is connected with one end of the valve rod, the other end of the valve rod extends into the tee joint to be connected with the upper valve plate, the mounting seat comprises a first supporting plate, a second supporting plate, a plurality of partition plates and a plurality of support columns, the first supporting plate is connected to the lower end of the lower valve plate through the partition plates, the second supporting plate is connected to the lower end of the, the packing box is internally and respectively sleeved with a copper sleeve and a packing sleeve body, the packing box is sleeved with a lower valve plate sealing sleeve, an embedded groove is formed in the lower end face, stretching out of the lower valve plate, of the packing box, the copper sleeve and the packing sleeve body are both tightly sleeved with a valve rod, and the packing sleeve body and the embedded groove oil seal are rotationally arranged.

As a further improvement, the three-way top edge is provided with the disk seat, the disk seat is fixed with the sealing washer, and this sealing washer forms the inboard boss of personally submitting slope form at the disk seat inner circle, the outer lane face of valve plate is provided with the second inclined plane with the parallel complex in boss inclined plane.

As a further improvement, the terminal surface is provided with the valve rod connecting seat under the last valve plate, the valve rod connecting seat is provided with "T" shape groove, the valve rod upper end is provided with "T" type connecting block, top sets up the buffering clearance behind "T" type connecting block joint "T" shape groove.

As a further improvement, the upper end of the output shaft of the hydraulic actuator is provided with a hinged seat, the lower end of the valve rod is provided with a movable joint, and the movable joint is hinged with the hinged seat.

As a further improvement, the material that the uide bushing is nodular cast iron.

As a further improvement of the utility model, the filler in the filler sleeve body is polytetrafluoroethylene.

The utility model has the advantages that: through the output shaft valve rod of executor that surges, at the executor during operation that surges, the valve plate opened and shut in the control upper valve plate can be driven to the valve rod motion by the output shaft of executor that surges, first backup pad passes through the baffle and connects valve plate lower extreme down, the second backup pad passes through the pillar connection at first backup pad lower extreme, the executor that surges is installed in the second backup pad, and such setting has reduced the sensor that surges at the during operation, and the influence of the vibrations of executor that surges to the governing valve has strengthened the stability of governing valve, through packing box and lower valve plate seal cover are established, the inside copper sheathing of packing box and the packing cover body all closely cup joint with the valve rod, the packing cover body rotates the setting with the caulking groove oil blanket, makes the valve rod in the motion process, and the leakproofness between valve rod and the tee bend increases, has guaranteed the.

Drawings

Fig. 1 is a plan sectional view of the present invention;

FIG. 2 is a schematic perspective view of the valve seat of the present invention;

fig. 3 is a partially enlarged view of fig. 1A.

Reference numerals: 1. a tee joint; 2. an upper valve plate; 3. a lower valve plate; 4. a valve stem; 5. a hydraulic actuator; 6. a mounting seat; 7. an output shaft; 8. a first support plate; 9. a second support plate; 10. a pillar; 11. a stuffing box; 12. a copper sleeve; 13. a stuffing box body; 14. caulking grooves; 15. a valve seat; 16. a seal ring; 17. a boss; 18. a second inclined plane; 19. a valve stem connecting seat; 20. a "T" shaped slot; 21. a T-shaped connecting block; 22. a hinged seat; 23. a movable joint; 24. a partition plate; 25. and a guide sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals.

Referring to fig. 1 to 3, the hydraulic seal regulating valve of this embodiment includes a tee joint 1, an upper valve plate 2 movably opening and closing an upper opening of the tee joint 1, a lower valve plate 3 fixedly installed at a lower opening of the tee joint 1, a valve rod 4, and a hydraulic actuator 5, wherein a mounting seat 6 is provided on a lower end surface of the lower valve plate 3, the hydraulic actuator 5 is installed on the mounting seat 6, an output shaft 7 of the hydraulic actuator 5 is connected to one end of the valve rod 4, the other end of the valve rod 4 extends into the tee joint 1 to be connected to the upper valve plate 2, the mounting seat 6 includes a first support plate 8, a second support plate 9, a plurality of partition plates 24 and a plurality of support columns 10, the first support plate 8 is connected to a lower end of the lower valve plate 3 through the partition plates 24, the second support plate 9 is connected to a lower end of the first support plate 8 through, be provided with the uide bushing 25 on the first backup pad 8, lower valve plate 3 is provided with packing box 11, valve rod 4 passes packing box 11 and uide bushing 25 and hydraulic actuator 5's output shaft 7 is connected, 11 inside covers respectively of packing box are equipped with copper sheathing 12 and the packing cover body 13, packing box 11 is established with lower valve plate 3 sealing boot, and this packing box 11 stretches out lower terminal surface of lower valve plate 3 and is provided with caulking groove 14, copper sheathing 12 and packing cover body 13 all closely cup joint with valve rod 4, packing cover body 13 rotates with 14 oil blanket in caulking groove and sets up.

Through the technical scheme, the valve rod 4 is connected through the output shaft 7 of the hydraulic actuator 5, when the hydraulic actuator 5 works, the output shaft 7 of the hydraulic actuator 5 can drive the valve rod 4 to move to control the opening and closing of the upper valve plate 2, the first supporting plate 8 is connected to the lower end of the lower valve plate 3 through the partition plate 24, the second supporting plate 9 is connected to the lower end of the first supporting plate 8 through the support column 10, the hydraulic actuator 5 is installed at the lower end of the second supporting plate 9, the arrangement reduces the influence of the vibration of the hydraulic actuator 5 on the regulating valve when the hydraulic actuator 5 works, the stability of the regulating valve is enhanced, the stuffing box 11 and the lower valve plate 3 are sleeved in a sealing manner, the copper sleeve 12 and the stuffing box body 13 inside the stuffing box 11 are both tightly sleeved with the valve rod 4, the stuffing box body 13 and the caulking groove 14 are arranged in an oil seal manner, the tightness of the valve rod 4 and the tee joint 1 is increased, and the overall tightness of the regulating valve is guaranteed.

As an improved specific embodiment, a valve seat 15 is arranged at the upper edge of the tee joint 1, a sealing ring 16 is fixed on the valve seat 15, a boss 17 with a slope-shaped inner side surface is formed on the inner ring of the valve seat 15 by the sealing ring 16, and a second inclined surface 18 matched with the inclined surface of the boss 17 in parallel is arranged on the outer ring surface of the upper valve plate 2.

Through the technical scheme, the outer ring of the upper valve plate 2 is provided with the second inclined plane 18 matched with the inclined plane of the boss 17, so that the upper valve plate 2 and the sealing ring 16 are matched more closely, and the sealing performance of the tee joint 1 is enhanced.

As a modified specific embodiment, a valve rod connecting seat 19 is arranged on the lower end surface of the upper valve plate 2, a T-shaped groove 20 is formed in the valve rod connecting seat 19, a T-shaped connecting block 21 is arranged at the upper end of the valve rod 4, and a buffering gap is formed in the top of the T-shaped connecting block 21 after the T-shaped connecting block 21 is clamped in the T-shaped groove 20.

Through above-mentioned technical scheme, "T" type connecting block 21 joint "T" shape groove 20 of valve rod 4 upper end makes valve rod 4 and last valve plate 2 can the joint be connected, "T" shape groove 20 back top set up the buffering clearance, makes the valve rod can not cause the wearing and tearing of going up valve plate 2 because of exerting oneself violently at the during operation.

As a modified specific embodiment, the upper end of the output shaft 7 of the hydraulic actuator 5 is provided with a hinge seat 22, the lower end of the valve rod 4 is provided with a movable joint 23, and the movable joint 23 is hinged with the hinge seat 22.

Through the technical scheme, the movable joint 23 and the hinge seat 22 are arranged, so that the output shaft 7 of the hydraulic actuator 5 is hinged with the valve rod 4, and the impact resistance and the loading force of the valve rod 4 are increased.

In a modified specific embodiment, the material of the guide sleeve 25 is nodular cast iron.

By adopting the technical scheme, the guide sleeve 25 is made of nodular cast iron, so that the tensile strength and the corrosion resistance of the guide sleeve 25 are greatly enhanced.

As a modified specific embodiment, the filler in the filler sleeve body 13 is polytetrafluoroethylene.

According to the technical scheme, the filler in the filler sleeve body 13 is polytetrafluoroethylene, the polytetrafluoroethylene has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, the polytetrafluoroethylene has the characteristic of high temperature resistance, and the friction coefficient of the polytetrafluoroethylene is extremely low. These advantages allow the sealing performance of the packing sheath body 13 to be well ensured.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A hydraulic seal regulating valve comprises a tee joint (1), an upper valve plate (2) movably opening and closing an upper opening of the tee joint (1), a lower valve plate (3) fixedly installed at a lower opening of the tee joint (1), a valve rod (4) and a hydraulic actuator (5), and is characterized in that a mounting seat (6) is arranged on the lower end face of the lower valve plate (3), the hydraulic actuator (5) is installed on the mounting seat (6), an output shaft (7) of the hydraulic actuator (5) is connected with one end of the valve rod (4), the other end of the valve rod (4) extends into the tee joint (1) to be connected with the upper valve plate (2), the mounting seat (6) comprises a first supporting plate (8), a second supporting plate (9), a plurality of partition plates (24) and a plurality of support columns (10), the first supporting plate (8) is connected to the lower end of the lower valve plate (3) through the partition plates (24), the second supporting plate (9) is connected with the lower end of the first supporting plate (8) through a strut (10), the hydraulic actuator (5) is arranged at the lower end of the second supporting plate (9), the first supporting plate (8) is provided with a guide sleeve (25), the lower valve plate (3) is provided with a stuffing box (11), the valve rod (4) passes through the stuffing box (11) and the guide sleeve (25) to be connected with an output shaft (7) of the hydraulic actuator (5), the copper sleeve (12) and the packing sleeve body (13) are respectively sleeved in the packing box (11), the packing box (11) and the lower valve plate (3) are hermetically sleeved, the lower end surface of the stuffing box (11) extending out of the lower valve plate (3) is provided with a caulking groove (14), the copper sleeve (12) and the packing sleeve body (13) are both tightly sleeved with the valve rod (4), and the packing sleeve body (13) and the caulking groove (14) are rotationally arranged.

2. A fluid-operated seal-regulating valve according to claim 1, characterized in that: the upper edge of the tee joint (1) is provided with a valve seat (15), the valve seat (15) is fixed with a sealing ring (16), the inner side of the sealing ring (16) on the inner ring of the valve seat (15) is provided with a boss (17) with a slope, and the outer ring surface of the upper valve plate (2) is provided with a second slope (18) which is in parallel fit with the slope of the boss (17).

3. A fluid-operated seal-regulating valve according to claim 2, wherein: go up valve plate (2) lower terminal surface and be provided with valve rod connecting seat (19), valve rod connecting seat (19) are provided with "T" shape groove (20), valve rod (4) upper end is provided with "T" type connecting block (21), top sets up the buffering clearance behind "T" shape connecting block (21) joint "T" shape groove (20).

4. A fluid-operated seal-regulating valve according to claim 1, characterized in that: the upper end of the output shaft (7) of the hydraulic actuator (5) is provided with a hinged seat (22), the lower end part of the valve rod (4) is provided with a movable joint (23), and the movable joint (23) is hinged to the hinged seat (22).

5. A fluid-operated seal-regulating valve according to claim 1, characterized in that: the guide sleeve (25) is made of nodular cast iron.

6. A fluid-operated seal-regulating valve according to claim 1, characterized in that: the filler in the filler sleeve body (13) is polytetrafluoroethylene.