CN218494235U

CN218494235U - Large-diameter high-temperature high-pressure expansion gate valve

Info

Publication number: CN218494235U
Application number: CN202221607060.6U
Authority: CN
Inventors: 刘齐宇; 李燕青; 项鹏; 傅军
Original assignee: Talon Machinery Suzhou Co ltd
Current assignee: Talon Machinery Suzhou Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-02-17
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a heavy-calibre high temperature high pressure expansion gate valve, including the device main part, including valve gap sealing pad, apron, support, valve-stem nut and valve gap main part, the inside deflector that is equipped with of device main part, the deflector is equipped with two, two be equipped with the valve plate assembly between the deflector, valve plate assembly and deflector sliding connection, valve plate assembly top is connected with valve rod body bottom, device main part bottom one side is provided with annotates the fat valve, and the valve plate assembly constitutes through two wedge valve plates to the valve plate can strut to the both sides inflation, makes the valve plate have flexible ability, thereby prevents that temperature variation from making the valve plate warp and lead to blocking, and the valve plate surface has seted up circular water conservancy diversion hole, conveniently clears up pipeline inside through pipeline cleaning equipment, has avoided the long-time easy friction of use of flashboard to make the flashboard both sides produce the gap through the expansion distraction effect of flashboard, thereby influences the condition of the sealed effect of valve plate.

Description

Large-diameter high-temperature high-pressure expansion gate valve

Technical Field

The utility model relates to a gate valve equipment technical field specifically is a heavy-calibre high temperature high pressure expansion gate valve.

Background

Through the retrieval, patent one, chinese patent grant No. CN202121236794.3 discloses a sealed effectual gate valve, relate to gate valve equipment technical field, a sealed effectual gate valve, including the gate valve body, the gate valve cap, the gate valve board, valve rod and hand wheel, be provided with resilient gasket between gate valve cap and the gate valve body, be provided with fluid passage in the gate valve body, the inside upper end of fluid passage is provided with two sealed pieces, two sealed pieces are located the both sides of gate valve board respectively, the cross-section of sealed piece is the character cut in bas-relief, be provided with the inserted block in the sealed piece, be provided with the spring between the inner wall of inserted block and sealed piece, be provided with the slot on the lateral wall of gate valve board both sides respectively, the lower extreme of gate valve board is provided with the sealing member, the surface of gate valve board has set gradually sealing layer, anticorrosive coating and high temperature resistant layer from inside to outside, one side of valve body bottom is connected with the leakage fluid dram, be provided with the boss with gate valve board complex in the gate valve cap, be provided with the doctor-bar on the boss, compared with prior art, the utility model discloses sealed effect and life of gate valve.

The above patents suffer from the following disadvantages:

1.; this valve makes the flashboard warp easily when temperature variation to lead to blocking, and the flashboard is not equipped with the water conservancy diversion hole and is not convenient for clear up inside, and this flashboard uses easy friction for a long time to make the flashboard both sides produce the gap, thereby influences the sealed effect of valve plate.

2. The high pressure resistant ability of this valve is relatively poor to lead to the too high messenger of internal pressure to carry out the pressure release easily, produce the potential safety hazard during the use, and the leakproofness is relatively poor between valve rod and the gate valve main part, thereby lead to the gate valve to have the hidden danger of revealing easily, thereby be unfavorable for using, do not set up lubricating arrangement simultaneously between valve rod and the valve main part, thereby use for a long time and make valve rod frictional force grow easily, and gate valve main part between wearing and tearing produce the gap.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a heavy-calibre high temperature high pressure expansion gate valve has solved the problem that proposes in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a heavy-calibre high temperature high pressure expansion gate valve, includes the device main part, includes valve gap sealing pad, apron, support, valve-stem nut and valve gap main part, the inside deflector that is equipped with of device main part, the deflector is equipped with two, two be equipped with the valve plate assembly between the deflector, valve plate assembly and deflector sliding connection, valve plate assembly top is connected with valve rod body bottom, device main part bottom one side is provided with annotates the fat valve, device main part top is equipped with first bolt, first bolt is connected with the valve gap bulk phase through first nut, it has the valve block sealing washer to imbed between device main part and the valve gap main part, device main part top inner wall has inlayed the valve gap sealing pad and third sealing ring, the inside disk seat sealing washer that is equipped with of valve gap main part, valve gap main part top both ends are equipped with the second bolt, the second bolt passes through the second nut and is connected bottom the support, the apron passes through hexagon socket head cap screw and fixes at the support outer wall, the support is connected with bottom bearing seat portion through the holding screw, inside and valve-stem nut sliding connection, the first sealing ring of valve-stem nut outside suit, two upper and lower oil cup welding of hand wheel outer wall surface, valve-stem nut and hand wheel cup are distributed.

Preferably, the valve plate assembly adopts two wedge-shaped valve plates, a sealing surface and a vertical center line of the valve body form a certain oblique angle, and the surfaces of the valve plates are provided with flow guide holes.

Preferably, valve plate assembly both sides are equipped with the disk seat main part, disk seat sealing washer has been inlayed on disk seat main part surface, the inside spring skeleton that is of disk seat sealing washer supports.

Preferably, the valve rod sealing ring is sleeved outside the valve rod body, a spacer ring is arranged below the valve rod sealing ring, a gasket is arranged below the spacer ring, and the bottom of the gasket is in contact with the support.

Preferably, a filler is arranged above the valve rod sealing ring, a pressing ring is arranged above the filler, a pressing plate is arranged above the pressing ring, the pressing plate is in threaded connection with the full-line bolt, the bottom of the full-line bolt is in threaded connection with the top of the support, and the top of the full-line bolt is in threaded connection with the third nut.

Preferably, valve rod nut top and guard shield bottom sliding connection, guard shield and pilot lever sliding connection, be equipped with the second sealing ring between guard shield and the pilot lever, device main part one side is provided with the relief valve, just device main part external surface constitutes for multilayer composite construction, and this multilayer composite construction is polyurethane heat preservation and electroplated layer.

(III) advantageous effects

The utility model provides a heavy-calibre high temperature high pressure expansion gate valve. The method has the following beneficial effects:

(1) This large-bore high temperature high pressure inflation gate valve, under the combination of each part of each other, the valve plate assembly comprises two wedge valve plates, thereby the valve plate can be strutted to the both sides inflation, make the valve plate have flexible ability, thereby prevent that temperature variation from making the valve plate warp and leading to blocking, and circular water conservancy diversion hole has been seted up on the valve plate surface, conveniently clear up the pipeline inside through pipeline cleaning equipment, the expansion of through the flashboard struts the effect and has avoided the flashboard to use easy friction for a long time and make the flashboard both sides produce the gap, thereby the condition of the sealed effect of influence valve plate.

(2) This heavy-calibre high temperature high pressure inflation gate valve, through the outside relief valve of cavity, thereby can make gate valve internal pressure can carry out the pressure release to its inside through the relief valve when too high, thereby be favorable to improving the security of valve use, thereby make the clamp plate can the downstream through rotating the third nut, and then the clamp plate can drive clamping ring downstream, can extrude the packing downwards when clamping ring downstream, thereby packing and valve rod sealing washer can improve the leakproofness of valve rod greatly, be favorable to preventing to reveal, and can both pour into lubricating oil into through spacer ring and oil cup and prevent the friction grow to valve rod body 25.

Drawings

FIG. 1 is a front view of the internal structure of the present invention;

FIG. 2 is a schematic side view of the internal structure of the present invention;

fig. 3 is an enlarged schematic view of a point a in fig. 1 according to the present invention;

fig. 4 is an enlarged schematic view of the utility model at the point B in fig. 1;

fig. 5 is an enlarged schematic view of the present invention at C in fig. 2.

In the figure, 1-a device main body, 2-a guide plate, 3-a valve plate assembly, 4-a valve seat main body, 5-a valve seat sealing ring, 6-a grease injection valve, 7-a valve cover sealing gasket, 8-a first nut, 9-a first bolt, 10-a gasket, 11-a spacer ring, 12-a valve rod sealing ring, 13-a second nut, 14-a second bolt, 15-a cover plate, 16-an inner hexagon screw, 17-a support, 18-a bearing seat, 19-an oil cup, 20-a valve rod nut, 21-a first sealing ring, 22-a hand wheel, 23-a shield, 24-an indicating rod, 25-a valve rod body, 26-a third nut, 27-a full-line bolt, 28-a pressing plate, 29-a pressing ring, 30-a valve cover main body, 31-a set screw, 32-a second sealing ring, 33-a third sealing ring, 34-a pressure release valve and 35-a filler.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a large-caliber high-temperature and high-pressure expansion gate valve comprises a device main body 1, a valve cover sealing gasket 7, a cover plate 15, a support 17, a valve rod nut 20 and a valve cover main body 30, wherein guide plates 2 are arranged inside the device main body 1, two guide plates 2 are arranged, a valve plate assembly 3 is arranged between the two guide plates 2, the valve plate assembly 3 is in sliding connection with the guide plates 2, the top of the valve plate assembly 3 is connected with the bottom of a valve rod body 25, a grease injection valve 6 is arranged on one side of the bottom of the device main body 1, grease injection lubrication can be favorably carried out on the guide plates 2 through the grease injection valve 6, so that the friction force on two sides of the valve plate assembly 3 can be favorably prevented from being increased, a gap is generated to influence the sealing effect of the valve plate assembly 3, a first bolt 9 is arranged above the device main body 1, the first bolt 9 is connected with the valve cover main body 30 through a first nut 8, and a valve seat sealing ring 5 is embedded between the device main body 1 and the valve cover main body 30, the inner wall of the top of the device main body 1 is embedded with a valve cover sealing gasket 7 and a third sealing ring 33, a valve seat sealing ring 5 is arranged inside the valve cover main body 30, so that a pressing plate 28 can move downwards by rotating a third nut 26, the pressing plate 28 can drive a pressing ring 29 to move downwards, the pressing ring 29 can downwards extrude a packing 35 while moving downwards, the packing 35 and a valve rod sealing ring 12 can greatly improve the sealing property of a valve rod and facilitate the prevention of leakage, lubricating oil can be injected into the valve rod body 25 through a spacer ring 11 to prevent friction from increasing, the two ends of the top of the valve cover main body 30 are provided with second bolts 14, the second bolts 14 are connected with the bottom of a support 17 through second nuts 13, a cover plate 15 is fixed on the outer wall of the support 17 through hexagon socket screws 16, and the support 17 is connected with the bottom of a bearing seat 18 through set screws 31, the interior of the bearing seat 18 is connected with a valve rod nut 20 in a sliding mode, a first sealing ring 21 is sleeved on the exterior of the valve rod nut 20, two oil cups 19 are distributed on the upper portion and the lower portion of the surface of the outer wall of the support 17, and the valve rod nut 20 is welded with a hand wheel 22.

Valve plate assembly 3 adopts two wedge valve plates, sealed face becomes certain oblique angle with the perpendicular center line of valve body, and the valve plate surface is equipped with the water conservancy diversion hole, thereby the valve plate can be strutted to the both sides inflation, make the valve plate have flexible ability, thereby prevent that temperature variation from making the valve plate warp and leading to blocking, and the valve plate surface has seted up circular water conservancy diversion hole, conveniently clear up pipeline inside through pipeline cleaning equipment, the expansion through the flashboard struts the effect and has avoided the flashboard to use easy friction for a long time and make the flashboard both sides produce the gap, thereby the condition of the sealed effect of influence valve plate.

3 both sides of valve plate assembly are equipped with disk seat main part 4, disk seat main part 4 surface has inlayed disk seat seal 5, disk seat seal 5 is inside to be supported for the spring skeleton to be favorable to preventing through inside spring support skeleton that disk seat seal 5 from producing the deformation under the highly compressed environment of high temperature, thereby be favorable to preventing that disk seat seal 5 warp and influence sealed effect.

Valve rod body 25 outside suit valve rod sealing ring 12, valve rod sealing ring 12 below is equipped with spacer ring 11, spacer ring 11 below is equipped with gasket 10, gasket 10 bottom and support 17 contact can carry out the oiling lubrication to spacer ring 11 through outside oiling device, and then be favorable to keeping the lubricated smooth when valve rod body 25 uses.

Valve rod sealing ring 12 top is equipped with packing 35, packing 35 top is equipped with clamping ring 29, clamping ring 29 top is equipped with clamp plate 28, clamp plate 28 and full line bolt 27 threaded connection, full line bolt 27 bottom and support 17 top threaded connection, full line bolt 27 top and third nut 26 threaded connection to be favorable to making clamp plate 28 and clamping ring 29 move downwards through rotating third nut 26.

Valve rod nut 20 top and guard shield 23 bottom sliding connection, guard shield 23 and indicator lever 24 sliding connection, be equipped with second sealing ring 32 between guard shield 23 and the indicator lever 24, device main part 1 one side is provided with relief valve 34, just 1 external surface of device main part constitutes for multilayer composite structure, and this multilayer composite structure is polyurethane heat preservation and plating layer, and the multilayer composite structure outside through device main part 1 has profitably improved the outside high temperature resistance ability of device main part 1 greatly, can make the gate valve internal pressure carry out the pressure release when too high through relief valve 34 to be favorable to preventing that the gate valve internal pressure is too high, improve the security of gate valve use.

During use, the hand wheel 22 is rotated to drive the valve rod body 25 to move downwards, the valve rod body 25 can be driven to move downwards while moving downwards to drive the valve plate assembly 3 to move downwards, the valve plate can be expanded and spread towards two sides, and the valve plate has the expansion capacity, so that the sealing capacity of the valve plate assembly 3 is greatly improved while the valve plate is prevented from being clamped due to deformation of the valve plate caused by temperature change, the hand wheel 22 is rotated in the opposite direction, so that the flow guide holes in the valve rod assembly 3 can be communicated with the two ends of the device main body 1, so that media can circulate, the grease injection valve 6 is favorable for oil lubrication on the guide plate 2, so that the friction force on the two sides of the gate plate assembly 3 is favorably increased, a gap is generated to influence the sealing effect of the gate plate assembly 3, the pressing plate 28 can move downwards by rotating the third nut 26, so that the pressing plate 28 can drive the pressing ring 29 to move downwards, the pressing ring 29 can downwards to extrude the packing 35 downwards while the pressing ring 29, so that the sealing performance of the packing 35 and the sealing ring 12 can be greatly improved, leakage is favorable for preventing the leakage, the pressure of the valve rod body 25 from being increased by injecting lubricating oil into the pressing ring 11, the valve seat, the inside pressure relief valve can be favorable for improving the safety pressure of a gate valve, and the pressure relief valve, so that the pressure of a high pressure valve can be increased by passing through the gate valve, and the inside the gate valve, and the safety valve, and the pressure relief valve can be improved, and the inside the pressure of the gate valve can be improved, and the safety valve.

The utility model discloses a 1-device main part, 2-deflector, 3-valve plate assembly, 4-valve seat main part, 5-valve seat sealing washer, 6-notes fat valve, 7-valve gap sealing gasket, 8-first nut, 9-first bolt, 10-gasket, 11-spacer ring, 12-valve rod sealing washer, 13-second nut, 14-second bolt, 15-apron, 16-hexagon socket head cap screw, 17-support, 18-bearing frame, 19-oil cup, 20-valve rod nut, 21-first sealing ring, 22-hand wheel, 23-guard shield, 24-indicator rod, 25-valve rod body, 26-third nut, 27-full line bolt, 28-clamp plate, 29-clamping ring, 30-valve gap main part, 31-tight set screw, 32-second sealing ring, 33-third sealing ring, 34-relief valve, 35-packing, the part is general standard or the part that technical staff knows, its structure and principle all can learn through the present technical staff or can learn to know through conventional experimental methods.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a heavy-calibre high temperature high pressure expansion gate valve which characterized in that: comprises a device main body (1) and is characterized by comprising a valve cover sealing gasket (7), a cover plate (15), a support (17), a valve rod nut (20) and a valve cover main body (30), wherein the guide plate (2) is arranged inside the device main body (1), the guide plate (2) is provided with two guide plates, two valve plate assemblies (3) are arranged between the guide plates (2), the valve plate assemblies (3) are in sliding connection with the guide plates (2), the top of the valve plate assemblies (3) are connected with the bottom of the valve rod body (25), one side of the bottom of the device main body (1) is provided with a grease injection valve (6), a first bolt (9) is arranged above the device main body (1), the first bolt (9) is connected with the valve cover main body (30) through a first nut (8), a valve seat sealing ring (5) is embedded between the device main body (1) and the valve cover main body (30), the inner wall of the top of the device main body (1) is embedded with a valve cover sealing gasket (7) and a third sealing ring (33), a valve seat sealing ring (5) is arranged inside the valve cover sealing gasket (30), the top of the valve cover main body (30) is provided with a second bolt (14), and a second support (17) is connected with a second bolt (14) through a second bolt (17), the oil pump is characterized in that the support (17) is connected with the bottom of the bearing seat (18) through a set screw (31), the inside of the bearing seat (18) is connected with the valve rod nut (20) in a sliding mode, the outside of the valve rod nut (20) is sleeved with a first sealing ring (21), two oil cups (19) are distributed on the upper portion and the lower portion of the surface of the outer wall of the support (17), and the valve rod nut (20) is welded with a hand wheel (22).

2. The large-caliber high-temperature and high-pressure expansion gate valve according to claim 1, characterized in that: the valve plate assembly (3) adopts two wedge-shaped valve plates, a sealing surface and the vertical center line of the valve body form a certain oblique angle, and the surfaces of the valve plates are provided with flow guide holes.

3. The large-caliber high-temperature and high-pressure expansion gate valve according to claim 1, characterized in that: valve plate assembly (3) both sides are equipped with disk seat main part (4), disk seat sealing washer (5) have been inlayed on disk seat main part (4) surface, disk seat sealing washer (5) inside is the support of spring skeleton.

4. The large-caliber high-temperature and high-pressure expansion gate valve according to claim 1, characterized in that: the valve rod sealing ring (12) is sleeved outside the valve rod body (25), a spacer ring (11) is arranged below the valve rod sealing ring (12), a gasket (10) is arranged below the spacer ring (11), and the bottom of the gasket (10) is in contact with the support (17).

5. The large-caliber high-temperature and high-pressure expansion gate valve according to claim 4, wherein: valve rod sealing washer (12) top is equipped with filler (35), filler (35) top is equipped with clamping ring (29), clamping ring (29) top is equipped with clamp plate (28), clamp plate (28) and full line bolt (27) threaded connection, full line bolt (27) bottom and support (17) top threaded connection, full line bolt (27) top and third nut (26) threaded connection.

6. The large-caliber high-temperature and high-pressure expansion gate valve according to claim 1, characterized in that: valve rod nut (20) top and guard shield (23) bottom sliding connection, guard shield (23) and pilot lever (24) sliding connection, be equipped with second sealing ring (32) between guard shield (23) and pilot lever (24), device main part (1) one side is provided with relief valve (34), just device main part (1) external surface constitutes for multilayer composite construction, and this multilayer composite construction is polyurethane heat preservation and electroplated layer.