CN218494236U

CN218494236U - Novel high-temperature anti-corrosion flat gate valve

Info

Publication number: CN218494236U
Application number: CN202221617349.6U
Authority: CN
Inventors: 左刘峰; 李燕青; 傅军; 刘齐宇
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 novel anticorrosive plate valve of high temperature, including the gate valve body, the gate valve body includes flashboard, first sealed piece, locating piece, valve rod body and third nut, the connector has been seted up to gate valve body both sides, gate valve body bottom is equipped with the base, inside and the flashboard sliding connection of gate valve body, the flashboard top is connected with valve rod body block, the inside first sealed piece that is equipped with of gate valve body, first sealed piece passes through the draw-in groove and is connected with the inside block of gate valve body, recess is seted up on first sealed piece surface, and the inside elastic construction that is equipped with of recess, first sealed piece top has inlayed first sealing washer, plates the polytetrafluoroethylene double-deck protection on welding layer and gate valve body and flashboard surface through the gate valve external surface, and the security of assurance valve body that can be fine improves the corrosivity of valve body under high temperature environment, makes it avoid the corruption of acid chemicals, guarantees the normal work of valve body.

Description

Novel high-temperature anti-corrosion flat gate valve

Technical Field

The utility model relates to a gate valve technical field specifically is a novel anticorrosive plate valve of high temperature.

Background

Through the retrieval, patent one, chinese patent is granted for CN201821053802.9 discloses a flat gate valve that can prevent mistake and bump, relate to flat gate valve technical field, a flat gate valve that can prevent mistake and bump, including the flat gate valve body, flat gate valve body upper end is connected with the valve rod, the valve rod outside is equipped with lower protective sleeve, lower protective sleeve and flat gate valve body fixed connection, lower protective sleeve upper end cover is equipped with the metal mesh lid, the spout has all been seted up to both inner walls about the lower protective sleeve, the spout inner is equipped with the dust screen, dust screen outer end fixedly connected with fixture block, fixture block and spout sliding connection, the valve rod outer pot head is equipped with well protective sleeve, well protective sleeve is located lower protective sleeve top, and well protective sleeve's lower extreme and the upper end phase-match of lower protective sleeve, well protective sleeve upper end fixedly connected with main hand wheel, main hand wheel upper end has seted up the regular pentagon groove, can realize reducing the effect that mistake hand bumped, increase the security, can also realize conveniently unscrewing or screwing up the effect of flat gate valve body simultaneously.

The above patents suffer from the following disadvantages:

1. the flat gate valve is insufficient in high-temperature anticorrosion function, and the adopted anticorrosion measures are only to coat a layer of paint on the surface, so that the purpose of anticorrosion is difficult to achieve in a high-temperature environment, and thus an internal medium is easy to corrode the wall thickness, and further the hidden danger of internal medium leakage is easy to cause;

2. this plate valve can not avoid inside sealing device to warp under the environment of high temperature, leads to sealed effect to reduce after sealing device thermal deformation easily, and then reduces life and sealing performance, leads to the valve to close the back, has certain hidden danger of revealing the volume.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a novel anticorrosive plate valve of high temperature 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 novel anticorrosive plate valve of high temperature, includes the gate valve body, the gate valve body includes flashboard, first sealed piece, locating piece, valve rod body and third nut, the connector has been seted up to gate valve body both sides, gate valve body bottom is equipped with the base, inside and flashboard sliding connection of gate valve body, the flashboard top is connected with valve rod body block, the inside first sealed piece that is equipped with of gate valve body, first sealed piece passes through the draw-in groove and is connected with the inside block of gate valve body, the recess is seted up on first sealed piece surface, and the inside elastic construction that is equipped with of recess, first sealed piece top has inlayed first sealing washer, first sealed piece is connected with the locating piece block, locating piece one end and gate valve body inner wall welding, second sealing washer has been inlayed with upper cover bottom junction in gate valve body top, gate valve body top is equipped with first bolt and fourth bolt, the upper cover is connected with the gate valve body through first nut, be equipped with the connection piece between first nut and the first bolt, upper cover top and third bolt bottom welding, the third bolt is connected with support bolt, the support is equipped with second nut and second sealing device one side.

Preferably, inside and the valve rod body sliding connection of upper cover, the outside one side of upper cover is provided with first notes fat valve, first notes fat valve one end and the inside oil groove intercommunication of upper cover, all be equipped with packing body about the oil groove, the packing body top is provided with the packing and presses the cover, packing press set top and the contact of packing clamp plate bottom, the packing clamp plate top is connected with valve rod nut, the packing body bottom is spliced with the sealed top of packing.

Preferably, the surface of the contact part of the valve rod body and the valve rod nut is of a thread structure, the valve rod body is in threaded connection with the valve rod nut, an expansion bolt is arranged at the bottom of the packing seal, and the bottom of the expansion bolt is welded with the upper cover.

Preferably, the sealing device is connected with the indicating rod in a sliding mode, a second sealing ring is sleeved outside the indicating rod, and the bottom of the indicating rod is connected with the top of the valve rod body.

Preferably, the upper cover is embedded with a general plug seal, the general plug seal is sleeved outside the valve rod body, the interior of the general plug seal is of a spring structure, and the outer wall of the gate valve body is connected with the pressure release valve.

Preferably, the outer surface of the gate valve body is a welding layer, and the inner wall of the gate valve body and the surface of the gate plate are made of polytetrafluoroethylene anticorrosive layers.

(III) advantageous effects

The utility model provides a novel anticorrosive plate valve of high temperature. The method has the following beneficial effects:

(1) This novel anticorrosive plate gate of high temperature, through the outside surface plating layer of gate valve and the surperficial polytetrafluoroethylene double-deck protection of gate valve body and flashboard, the security of assurance valve body that can be fine improves the corrosivity of valve body under high temperature environment, makes it avoid the corruption of acid chemicals, guarantees the normal work of valve body.

(2) This novel anticorrosive plate valve of high temperature, can make the pressure packing board move downwards through rotating valve rod nut, can drive the pressure packing cover downstream when the pressure packing board moves downstream, thereby extrude the filler body downwards, make the filler body can closely laminate, improve the leakproofness of valve rod body, the sealed downstream that also can carry out of filler simultaneously, thereby make the inflation bolt insert inside the packing seal, make the sealed bottom of packing expand, thereby the extrusion valve rod body further improves the leakproofness, avoid packing to lead to sealed effect to reduce after the thermal deformation easily, and then improve life and sealing performance.

Drawings

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

FIG. 2 is a side view of the whole 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 drawing, 1-gate valve body, 2-gate plate, 3-clamping groove, 4-elastic structure, 5-first sealing block, 6-positioning block, 7-first sealing ring, 8-second sealing ring, 9-valve rod body, 10-upper cover, 11-connecting sheet, 12-first nut, 13-first bolt, 14-oil groove, 15-packing pressing sleeve, 16-packing pressing plate, 17-bracket, 18-second bolt, 19-second nut, 20-hand wheel, 22-valve rod nut, 23-third bolt, 24-third nut, 25-packing body, 26-first grease injection valve, 27-packing seal, 28-expansion bolt, 29-universal plug seal, 30-indicating rod, 32-second sealing ring, 33-sealing device, 34-fourth bolt, 35-relief valve, 37-base.

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 novel high-temperature anti-corrosion flat gate valve comprises a gate valve body 1, wherein the gate valve body 1 comprises a gate plate 2, a first sealing block 5, a positioning block 6, a valve rod body 9 and a third nut 24, the two sides of the gate valve body 1 are provided with connecting ports, the bottom of the gate valve body 1 is provided with a base 37, the inside of the gate valve body 1 is connected with the gate plate 2 in a sliding way, the top of the gate plate 2 is connected with the valve rod body 9 in a clamping way, a first sealing block 5 is arranged inside the gate valve body 1, the first sealing block 5 is connected with the inside of the gate valve body 1 in a clamping way through a clamping groove 3, a groove is formed in the surface of the first sealing block 5, an elastic structure 4 is arranged inside the groove, so that the elastic structure 4 can push the first sealing block 5, the first sealing block 5 can move towards the gate 2 under the push of the elastic structure 4, thereby preventing the sealing effect from being influenced by the gaps generated by the long-time friction between the two sides of the flashboard 2 and the gate valve body 1, a first sealing ring 7 is embedded at the top of the first sealing block 5, the first sealing block 5 is clamped and connected with the positioning block 6, one end of the positioning block 6 is welded with the inner wall of the gate valve body 1, a second sealing ring 8 is embedded at the joint of the top of the gate valve body 1 and the bottom of the upper cover 10, the top of the gate valve body 1 is provided with a first bolt 13 and a fourth bolt 34, the upper cover 10 is connected with the gate valve body 1 through a first nut 12, a connecting piece 11 is arranged between the first nut 12 and the first bolt 13, the top of the upper cover 10 is welded with the bottom of the third bolt 23, the third bolt 23 is connected with the bracket 17 through a third nut 24, the bracket 17 is connected with a second nut 19 and the bottom of a sealing device 33 through a second bolt 18, and a hand wheel 20 is arranged on one side of the sealing device 33.

The inside and valve rod body 9 sliding connection of upper cover 10, the outside one side of upper cover 10 is provided with first notes fat valve 26, first notes fat valve 26 one end and the inside oil groove 14 intercommunication of upper cover 10, all be equipped with filler body 25 about the oil groove 14, filler body 25 top is provided with the packing and presses cover 15, the contact of 15 tops of packing and the pressure plate 16 bottom of packing presses the cover, 16 tops of pressure plate 16 are connected with valve-stem nut 22, the 25 bottoms of filler body splices with the 27 tops of packing and seals, can add the oil lubrication to valve rod body 9 through first notes fat valve 26, thereby avoid valve rod body 9 friction grow to influence sealed effect, can make pressure plate 16 that packs move downwards through rotating valve-stem nut 22, can drive the pressure cover 15 that packs and move downwards when pressure plate 16 moves downwards, thereby extrude filler body 25 downwards, make filler body 25 can closely laminate, improve valve rod body 9's leakproofness.

Valve rod body 9 and valve-stem nut 22 contact part surface are thread structure, valve rod body 9 and valve-stem nut 22 threaded connection, the sealed 27 bottom of packing is equipped with expansion bolt 28, the welding of expansion bolt 28 bottom and upper cover 10 is favorable to making the clamp plate 16 downstream of packing through rotating valve-stem nut 22, carries out downstream through sealed 27 of packing, thereby makes expansion bolt 28 insert inside sealed 27 of packing, makes sealed 27 bottom of packing expand, thereby extrudees valve rod body 9 and further improves the leakproofness, avoids packing to lead to easily after the thermal deformation to seal the effect and reduce, and then improves life and sealing performance.

Sealing device 33 and indicator lever 30 sliding connection, the outside cover of indicator lever 30 is equipped with second sealing ring 32, indicator lever 30 bottom is connected with valve rod body 9 top to further improved plate valve's leakproofness, be favorable to avoiding outside impurity entering device inside, and can fully prevent simultaneously that internals from receiving outside corruption.

The inside embedding of upper cover 10 has general stopper to seal 29, general stopper seals 29 suit in the valve rod body 9 outside, general stopper seals 29 inside and is the spring structure, 1 outer wall of gate valve body is connected with relief valve 35, through general stopper seals 29 inside spring structure, can make general stopper seal 29 can be non-deformable under high temperature high pressure environment to be favorable to keeping the inseparable of plate gate valve internal connection all the time.

1 outside surface of gate valve body is for plating the welding layer, and 1 inner wall of gate valve body and 2 surfaces of flashboard constitute for the polytetrafluoroethylene anticorrosive coating, plates the welding layer through the outside surface of gate valve and gate valve body 1 inside and the double-deck protection of polytetrafluoroethylene on flashboard 2 surface, the security of assurance valve body that can be fine improves the corrosivity of valve body under high temperature environment, makes it avoid the corruption of acid chemicals, guarantees the normal work of valve body.

During the use, through rotating hand wheel 20, thereby make valve rod body 9 can the rebound, valve rod body 9 can drive flashboard 2 rebound when the rebound, thereby make the inside medium of gate valve body 1 circulate, elastic construction 4 can promote first sealed piece 5, first sealed piece 5 can move to flashboard 2 under elastic construction 4's promotion, thereby can prevent that flashboard 2 both sides from long-time producing the gap with the friction of gate valve body 1 and influencing sealed effect, can refuel the lubrication of refueling to valve rod body 9 through first notes fat valve 26, thereby avoid valve rod body 9 friction grow, can make packing clamp plate 16 move downwards through rotating valve rod nut 22, can drive packing pressure cover 15 downstream when packing clamp plate 16 moves downwards, thereby extrude packing body 25 downwards, make packing body 25 can closely laminate, improve the sealing of improvement valve body 9, simultaneously packing body 25 drives packing seal 27 and moves downwards, thereby make expansion bolt 28 insert inside packing seal 27, make packing seal 27 bottom can expand, thereby extrude valve rod body 9 further improve the leakproofness, avoid packing to be heated after the deformation performance, thereby make the high temperature seal valve body can lead to the high temperature corrosion prevention plug valve body and the high temperature corrosion resistance seal environment that the flashboard can be favorable to the high temperature plug body can be connected through the high-proof seal environment that the normal seal body and the high temperature plug structure that the floods seal body can be favorable to reduce all the high temperature.

The utility model discloses a 1-gate valve body, 2-flashboard, 3-draw-in groove, 4-elastic construction, 5-first sealed piece, 6-locating piece, 7-first sealing washer, 8-second sealing washer, 9-valve stem body, 10-upper cover, 11-connection piece, 12-first nut, 13-first bolt, 14-oil groove, 15-packing pressure sleeve, 16-packing clamp plate, 17-support, 18-second bolt, 19-second nut, 20-hand wheel, 22-valve stem nut, 23-third bolt, 24-third nut, 25-packing body, 26-first notes fat valve, 27-packing is sealed, 28-expansion bolt, 29-general stopper seals, 30-indicator lever, 32-second sealing ring, 33-sealing device, 34-fourth bolt, 35-relief valve, 37-base, the part is the part that general standard spare or technical staff know, its structure and principle all can learn to learn through this technical staff or can learn to learn through conventional experimental method and learn to learn.

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. A novel high-temperature anti-corrosion flat gate valve is characterized in that: the gate valve comprises a gate valve body (1), wherein the gate valve body (1) comprises a gate plate (2), a first sealing block (5), a positioning block (6), a valve rod body (9) and a third nut (24), connectors are formed in two sides of the gate valve body (1), a base (37) is arranged at the bottom of the gate valve body (1), the gate valve body (1) is internally connected with the gate plate (2) in a sliding manner, the top of the gate plate (2) is connected with the valve rod body (9) in a clamping manner, the first sealing block (5) is arranged in the gate valve body (1), the first sealing block (5) is connected with the gate valve body (1) in an internal clamping manner through a clamping groove (3), a groove is formed in the surface of the first sealing block (5), an elastic structure (4) is arranged in the groove, a first sealing ring (7) is embedded in the top of the first sealing block (5), the first sealing block (5) is connected with the positioning block (6) in a clamping manner, one end of the positioning block (6) is welded with the inner wall of the gate valve body (1), a second sealing ring (8) is embedded in the joint of the top of the gate valve body (1) and the upper cover (10), a bolt body (13) is arranged at the top of the gate valve body (1), and a fourth nut (34), be equipped with connection piece (11) between first nut (12) and first bolt (13), upper cover (10) top and third bolt (23) bottom welding, third bolt (23) are connected with support (17) through third nut (24), support (17) are connected with second nut (19) and sealing device (33) bottom through second bolt (18), sealing device (33) one side is equipped with hand wheel (20).

2. The novel high-temperature anti-corrosion flat gate valve according to claim 1, characterized in that: the improved oil-water mixing valve is characterized in that the upper cover (10) is connected with the valve rod body (9) in a sliding mode, a first grease injection valve (26) is arranged on one side of the outer portion of the upper cover (10), one end of the first grease injection valve (26) is communicated with an oil groove (14) in the upper cover (10), a packing body (25) is arranged on the upper portion and the lower portion of the oil groove (14), a packing pressing sleeve (15) is arranged above the packing body (25), the top of the packing pressing sleeve (15) is in contact with the bottom of a packing pressing plate (16), the top of the packing pressing plate (16) is connected with a valve rod nut (22), and the bottom of the packing body (25) is in glue joint with the top of a packing seal (27).

3. The novel high-temperature anti-corrosion flat gate valve according to claim 2, characterized in that: the valve rod body (9) and the surface of a contact part of the valve rod nut (22) are in a thread structure, the valve rod body (9) is in threaded connection with the valve rod nut (22), an expansion bolt (28) is arranged at the bottom of the packing seal (27), and the bottom of the expansion bolt (28) is welded with the upper cover (10).

4. The novel high-temperature anti-corrosion flat gate valve according to claim 1, characterized in that: sealing device (33) and indicating rod (30) sliding connection, indicating rod (30) outside cover is equipped with second sealing ring (32), indicating rod (30) bottom is connected with valve rod body (9) top.

5. The novel high-temperature anti-corrosion flat gate valve according to claim 1, characterized in that: the valve is characterized in that a general plug seal (29) is embedded into the upper cover (10), the general plug seal (29) is sleeved outside the valve rod body (9), a spring structure is arranged inside the general plug seal (29), and the outer wall of the gate valve body (1) is connected with the pressure release valve (35).

6. The novel high-temperature anti-corrosion flat gate valve according to claim 1, characterized in that: the gate valve is characterized in that the outer surface of the gate valve body (1) is a welding layer, and the inner wall of the gate valve body (1) and the surface of the gate plate (2) are made of polytetrafluoroethylene anticorrosive layers.