CN210920164U

CN210920164U - Sleeve regulating valve with balance valve core

Info

Publication number: CN210920164U
Application number: CN201921781315.9U
Authority: CN
Inventors: 陆胜利
Original assignee: SHANGHAI DATONG AUTOMATIC CONTROL EQUIPMENT CO Ltd
Current assignee: SHANGHAI DATONG AUTOMATIC CONTROL EQUIPMENT CO Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-07-03
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a take sleeve governing valve of balanced case, relate to a governing valve, it includes the valve body, be provided with first runner and second runner in the valve body, form the partition wall between first runner and the second runner, it is equipped with the disk seat to inlay on the partition wall, the inlet opening has been seted up on the disk seat, the disk seat is provided with first sleeve in one side of second runner, water outlet window has been seted up on the lateral wall of first sleeve, be provided with the case in the first sleeve, the fixed valve rod that sets up of upside of case, the mounting hole has been seted up to one side of second runner, it is equipped with the second sleeve to inlay in the mounting hole, the case is kept away from the one end embedding second sleeve of disk seat and is slided the cooperation with the second sleeve, the balancing tank has been seted up to one side of keeping away from the disk seat on the case, the feed liquor way has been seted up on the case. The utility model has the advantages of can make the spool both ends atress comparatively even and guarantee the stability when governing valve fortune.

Description

Sleeve regulating valve with balance valve core

Technical Field

The utility model relates to a governing valve especially relates to a sleeve governing valve of balanced case in area.

Background

The sleeve regulating valve is a common control valve, a sleeve and a valve clack are in clearance fit, a throttling window is arranged on the sleeve, the shape of the window determines the flow characteristic of the regulating valve, and the area of the window influences the flow speed of the regulating valve.

The current chinese patent that bulletin number is CN201057277Y discloses a profile type sleeve governing valve, including valve body, sleeve, valve plug, valve rod, valve gap, filler and packing clamp plate, wherein, the sleeve is arranged in the inner chamber of valve body, has on the telescopic lateral wall with the valve body inner chamber in the through-hole of runner intercommunication, the valve plug is located the sleeve, the valve plug is connected to valve rod one end, the other end stretches out from the valve gap, the filler is filled in the packing box that valve gap and valve rod formed, sleeve and valve plug upper portion and lower part respectively have and correspond complex upper seal position and lower seal position, the valve plug is from lower seal position to the shrink gradual change of valve plug end.

By adopting the scheme, when the valve rod drives the valve plug to open the contour sleeve regulating valve, the medium directly flows through the through hole. However, when the regulating valve is closed or opened, the medium gives pressure to one side of the valve plug away from the valve rod, so that uneven stress on the valve plug is caused, the stability of the regulating valve during operation is seriously influenced, and a part to be improved exists.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model aims to provide a take sleeve governing valve of balanced case has seted up the compensating groove with the help of the one side of keeping away from the disk seat on the case to introduce the compensating groove with the help of feed liquor way with the medium, thereby make case both ends atress comparatively even, stability when guaranteeing the governing valve fortune.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a sleeve regulating valve with a balance valve core comprises a valve body, wherein a first flow channel and a second flow channel are arranged in the valve body, a partition wall is formed between the first flow channel and the second flow channel, a valve seat is embedded on the partition wall, a water inlet hole is formed in the valve seat, a first sleeve is arranged on one side of the second flow channel along the axial direction of the water inlet hole, a water outlet window is formed in the side wall of the first sleeve, a valve core for sealing the water inlet hole is arranged in the first sleeve in a translation mode along the axial direction of the first sleeve, the valve core is in clearance fit with the first sleeve, a valve rod is fixedly arranged on the upper side of the valve core, a second sleeve is coaxially arranged on one side, away from the valve seat, of the first sleeve, of the mounting hole, one end, away from the valve seat, of the valve core is embedded into the second sleeve and is in sliding fit with, the valve core is provided with a liquid inlet channel, one end of the liquid inlet channel penetrates through one side, close to the valve seat, of the valve core, and the other end of the liquid inlet channel is communicated with the balance groove.

By adopting the technical scheme, in actual application, a medium enters the balance groove through the liquid inlet channel, so that the stress at two ends of the valve core is uniform, and the stability of the regulating valve during application is ensured.

The utility model discloses further set up to: the balance grooves penetrate through the valve core along the radial direction of the valve core, and two balance grooves are arranged on the valve core in parallel at intervals along the axial direction of the valve core.

By adopting the technical scheme, the two balance grooves are uniformly formed on the valve core around the axial direction of the valve core, so that the stress uniformity of each part of the valve core is improved, and the stability of the regulating valve during operation is further ensured.

The utility model discloses further set up to: the middle part of the valve core is hollow and forms a uniform pressure groove, and the uniform pressure groove is communicated with the liquid inlet channel.

By adopting the technical scheme, the middle part of the valve core is provided with the pressure equalizing groove, so that the stress uniformity of all parts of the valve core is improved, and the stability of the regulating valve during operation is improved.

The utility model discloses further set up to: a sealing ring is tightly arranged between the first sleeve and the second sleeve in a supporting mode, the inner wall of the sealing ring tightly supports the valve core, and the outer wall of the sealing ring tightly supports the inner wall of the mounting hole.

Through adopting above-mentioned technical scheme, support tightly between first sleeve and second sleeve and set up the sealing washer to guarantee the leakproofness between first sleeve and the second sleeve, reduce the medium of compensating groove and take place from the condition of leaking between case and the second sleeve, guarantee the normal application of governing valve.

The utility model discloses further set up to: the cross-section of sealing washer is U type structure, the direction that the both sides wall trend was kept away from each other of sealing washer.

Through adopting above-mentioned technical scheme, support the both sides wall and the case of tight mounting hole respectively with the both sides wall of sealing washer to the condition that the medium that further reduces the equilibrium tank leaked from between case and the second sleeve takes place, guarantees the stability of case in the governing valve application.

The utility model discloses further set up to: the valve body is characterized in that a valve cover is detachably and fixedly arranged on the outer side of the valve body in the position of the mounting hole, an inserting sleeve is coaxially arranged on one side, away from the mounting hole, of the second sleeve in an extending mode, and the inserting sleeve is embedded into the valve cover.

Through adopting above-mentioned technical scheme, will peg graft the cover plug-in connection in the valve gap to guarantee the leakproofness that second sleeve and valve gap are connected, guarantee the leakproofness of governing valve.

The utility model discloses further set up to: the joint of the plug bush and the second sleeve is in a step shape and forms a step surface, and a sealing gasket is tightly abutted between the step surface and the valve cover.

Through adopting above-mentioned technical scheme, support tightly between stepped surface and valve gap and set up seal gasket to guarantee the leakproofness between second sleeve and the valve gap.

The utility model discloses further set up to: and a guide surface is arranged on one side of the valve seat far away from the valve core.

Through adopting above-mentioned technical scheme, guide the medium by the guide face and get into the inlet opening, reduce the medium to the impact strength of divider wall, guarantee the stability of governing valve operation.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) by arranging the balance groove on one side of the valve core, which is far away from the valve seat, and introducing a medium into the balance groove by virtue of the liquid inlet channel, the two ends of the valve core are stressed uniformly, and the stability of the regulating valve in use is ensured;

(2) two balance grooves are uniformly formed on the valve core around the axial direction of the valve core, and a pressure equalizing groove is formed in the middle of the valve core, so that the stability of the regulating valve during operation is further improved;

(3) the sealing ring tightly supported between the first sleeve and the second sleeve and the sealing gasket tightly supported between the stepped surface and the valve cover are comprehensively utilized, so that the sealing performance of the regulating valve during use is ensured, and the normal use of the regulating valve is ensured.

Drawings

Fig. 1 is a schematic full-sectional view mainly showing the overall structure of a multi-stage buffer sleeve regulating valve in the embodiment;

FIG. 2 is an enlarged view of a portion A of FIG. 1, showing primarily the structure of the valve seat;

fig. 3 is an enlarged view of a portion B of fig. 1, and mainly shows the structure of the second sleeve and the seal ring.

Reference numerals: 1. a valve body; 11. a first flow passage; 12. a second flow passage; 13. a partition wall; 14. mounting grooves; 15. mounting holes; 2. a valve seat; 21. a water inlet hole; 22. a guide surface; 23. a support ear; 24. sealing gaskets; 25. butting the inclined planes; 3. a first sleeve; 31. a water outlet window; 32. a first buffer tank; 33. a groove is embedded; 4. a second sleeve; 41. a plug bush; 42. a step surface; 43. a sealing gasket; 5. a valve core; 51. a valve stem; 52. a second buffer tank; 53. a drainage surface; 54. a pressing surface; 55. a balancing tank; 56. a uniform pressure groove; 57. a liquid inlet passage; 6. a valve cover; 7. and (5) sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

Example (b):

referring to fig. 1 and 2, the multistage buffering sleeve regulating valve comprises a valve body 1, wherein a first flow passage 11 and a second flow passage 12 are formed in the valve body 1 from outside to inside, the second flow passage 12 and the first flow passage 11 are arranged in a vertically separated mode, and a partition wall 13 is formed between the first flow passage 11 and the second flow passage 12; the partition wall 13 is provided with a mounting groove 14 penetrating through the first flow passage 11 and the second flow passage 12, a valve seat 2 is embedded in the mounting groove 14 from the second flow passage 12 to the first flow passage 11, and the valve seat 2 is provided with a water inlet hole 21; the valve seat 2 is tightly abutted with the first sleeve 3 on one side of the second flow channel 12, the axis of the first sleeve 3 is collinear with the axis of the second sleeve 4, the valve body 1 is provided with a mounting hole 15 in a penetrating way on one side wall of the first sleeve 3 far away from the valve seat 2, one side of the first sleeve 3 close to the mounting hole 15 is embedded into the mounting hole 15, and one side of the first sleeve 3 close to the mounting hole 15 is provided with a water outlet window 31; a second sleeve 4 is coaxially embedded in the mounting hole 15, a valve core 5 is slidably arranged in the second sleeve 4, one side of the valve core 5, which is close to the water inlet 21, extends towards the water inlet 21 and extends into the first sleeve 3, and the valve core 5 is in clearance fit with the first sleeve 3; the valve body 1 is provided with a valve cover 6 through bolt locking in the position of the peripheral side of the mounting hole 15, one side of the valve cover 6 close to the second sleeve 4 supports the second sleeve 4 tightly, one side of the valve core 5 close to the valve seat 2 is coaxially and fixedly provided with a valve rod 51, the valve rod 51 extends towards the valve seat 2 and penetrates through the valve seat 2, and the valve rod 51 is matched with the valve seat 2 in a sliding manner.

In actual work, the valve core 5 is driven by the valve rod 51 to slide in the first sleeve 3, so that one end of the valve core 5, which is close to the water inlet hole 21, is closed or the water inlet hole 21 is opened, and the opening and closing operation of the regulating valve is realized; when the valve core 5 is separated from the water inlet hole 21, the medium can flow from the gap between the first sleeve 3 and the valve core 5 to the water outlet window 31, and the medium flows from the first flow passage 11 to the second flow passage 12.

Referring to fig. 1 and 2, the inner wall of the first sleeve 3 is provided with three first buffer grooves 32 around the axial direction thereof, and the first buffer grooves 32 are arranged in the first sleeve 3 at intervals along the axial direction of the first sleeve 3; the side wall of the valve core 5 is provided with two second buffer grooves 52 around the axial direction thereof, the second buffer grooves 52 are spaced at one side of the valve core 5 close to the water inlet hole 21, and one side edges of the two second buffer grooves 52 close to the mounting hole 15 are chamfered and form a diversion surface 53. When the regulating valve is in an open state, the medium enters the first buffer groove 32 and the second buffer groove 52 through the gap between the valve core 5 and the first sleeve 3, the flow rate of the medium is reduced, and then the water outlet hole flows into the second flow channel 12; the medium is guided in the second buffer groove 52 via the guide surface 53 and flows out of the second buffer groove 52, so that the impact strength of the medium on the valve element 5 is reduced.

A guide surface 22 is arranged on one side of the water inlet hole 21 close to the first flow channel 11, a support lug 23 is formed on the peripheral side of the valve seat 2 in an axially extending mode around the water inlet hole 21, and a sealing gasket 24 is tightly arranged between the support lug 23 and the partition wall 13; the edge of one end of the valve core 5 close to the valve seat 2 is chamfered and forms a butting surface 54, and one side of the valve seat 2 close to the valve core 5 is provided with a butting inclined surface 25. The embedded groove 33 is opened to one side that first sleeve 3 is close to the water inlet, and one side embedding embedded groove 33 that disk seat 2 is close to first sleeve 3, and first sleeve 3 supports tight support ear 23. In practical application, the medium enters the water inlet hole 21 through guiding, and the medium enters the first buffer groove 32 through guiding of the butt inclined plane 25, so that the impact strength of the medium on the regulating valve is reduced; when the regulating valve is closed, the abutting surface 54 abuts against the abutting inclined surface 25, and the tightness of the closing of the regulating valve is ensured.

Referring to fig. 1 and 3, a balance groove 55 is formed in one side of the valve core 5, which is far away from the valve seat 2, the balance groove 55 penetrates through the valve core 5 on the valve core 5 along the radial direction of the valve core 5, and two balance grooves 55 are uniformly arranged on the valve core 5 at intervals around the axial direction of the valve core 5; the middle part of the valve core 5 is provided with a uniform pressure groove 56, the valve core 5 is provided with a liquid inlet channel 57 from one end surface close to the valve seat 2 to the direction of the balance groove 55, and the liquid inlet channel 57 penetrates through the uniform pressure groove 56 and is communicated with the balance groove 55. In practical application, a medium enters the uniform pressure groove 56 and the balance groove 55 along the liquid inlet channel 57 in sequence, so that the stress uniformity of each part of the valve core 5 is improved; and the medium in the equalizing groove 55 is blocked from flowing out by the second sleeve 4.

A sealing ring 7 is tightly abutted between the first sleeve 3 and the second sleeve 4, the section of the sealing ring 7 is of a U-shaped structure, the inner wall and the outer wall of the sealing ring 7 tend to be away from each other, the inner wall of the sealing ring 7 is abutted against the valve core 5, and the outer wall of the sealing ring 7 is abutted against the inner wall of the mounting hole 15. In order to further ensure the sealing performance of the regulating valve, an inserting sleeve 41 is formed on one side of the second sleeve 4 close to the valve cover 6 and extends towards the valve cover 6, the inserting sleeve 41 is embedded into the valve cover 6, the joint of the inserting sleeve 41 and the second sleeve 4 is in a step shape and forms a step surface 42, and a sealing gasket 43 is tightly abutted between the step surface 42 and the valve cover 6.

The present embodiment is further described below with reference to specific actions: in practical application, the medium enters the uniform pressure groove 56 and the balance groove 55 along the liquid inlet channel 57 in sequence, so as to ensure the uniformity of the stress of each part of the valve core 5. When the regulating valve is opened, the medium will be guided via the guide surface 22 into the inlet opening 21 and by the abutment ramp 25 into the first buffer reservoir 32; then, the medium sequentially enters the first buffer slot 32 and the second buffer slot 52, and is blocked from decelerating in the first buffer slot 32 and the second buffer slot 52; finally, the medium enters the second flow channel 12 through the water outlet window 31.

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 sleeve regulating valve with a balance valve core comprises a valve body (1), wherein a first flow channel (11) and a second flow channel (12) are arranged in the valve body (1), a partition wall (13) is formed between the first flow channel (11) and the second flow channel (12), a valve seat (2) is embedded on the partition wall (13), a water inlet hole (21) is formed in the valve seat (2), a first sleeve (3) is arranged on one side of the second flow channel (12) along the axial direction of the water inlet hole (21) of the valve seat (2), a water outlet window (31) is formed in the side wall of the first sleeve (3), a valve core (5) used for sealing the water inlet hole (21) is arranged in the first sleeve (3) in a translation mode along the axial direction of the first sleeve (3), the valve core (5) is in clearance fit with the first sleeve (3), a valve rod (51) is fixedly arranged on the upper side of the valve core (5, the novel valve is characterized in that a mounting hole (15) is formed in one side, away from the valve seat (2), of the second flow channel (12), a second sleeve (4) is coaxially embedded in one side, away from the valve seat (2), of the first sleeve (3) of the mounting hole (15), one end, away from the valve seat (2), of the valve core (5) is embedded into the second sleeve (4) and is in sliding fit with the second sleeve (4), a balance groove (55) is formed in one side, away from the valve seat (2), of the valve core (5), a liquid inlet channel (57) is formed in the valve core (5), one end of the liquid inlet channel (57) penetrates through one side, close to the valve seat (2), of the valve core (5), and the other end of the liquid inlet channel (57) is communicated with the balance groove.

2. The sleeve regulating valve with the balance valve core as recited in claim 1, wherein the balance groove (55) penetrates through the valve core (5) on the valve core (5) along the radial direction of the valve core (5), and two balance grooves (55) are uniformly arranged around the axial direction of the valve core (5) at intervals.

3. The sleeve regulating valve with the balance valve core as recited in claim 1, characterized in that the middle of the valve core (5) is hollow and forms a pressure equalizing groove (56), and the pressure equalizing groove (56) is communicated with the liquid inlet channel (57).

4. The sleeve regulating valve with the balance valve core according to claim 1, wherein a sealing ring (7) is tightly arranged between the first sleeve (3) and the second sleeve (4), the inner wall of the sealing ring (7) tightly abuts against the valve core (5), and the outer wall of the sealing ring (7) tightly abuts against the inner wall of the mounting hole (15).

5. The sleeve regulating valve with the balance valve core as claimed in claim 4, wherein the cross section of the sealing ring (7) is in a U-shaped structure, and two side walls of the sealing ring (7) tend to be away from each other.

6. The sleeve regulating valve with the balance valve core as recited in claim 1, wherein a valve cover (6) is detachably and fixedly arranged on the outer side of the valve body (1) at the position of the mounting hole (15), a plug-in sleeve (41) is coaxially and extendedly arranged on one side of the second sleeve (4) far away from the mounting hole (15), and the plug-in sleeve (41) is embedded in the valve cover (6).

7. The sleeve regulating valve with the balance valve core as claimed in claim 6, wherein the joint of the plug sleeve (41) and the second sleeve (4) is stepped to form a stepped surface (42), and a sealing gasket (43) is tightly abutted between the stepped surface (42) and the valve cover (6).

8. Sleeve regulating valve with balanced valve cartridge according to claim 1, characterized in that the side of the valve seat (2) facing away from the valve cartridge (5) is provided with a guide surface (22).