CN219692424U - Middle channel double seal valve - Google Patents
Middle channel double seal valve Download PDFInfo
- Publication number
- CN219692424U CN219692424U CN202320658586.5U CN202320658586U CN219692424U CN 219692424 U CN219692424 U CN 219692424U CN 202320658586 U CN202320658586 U CN 202320658586U CN 219692424 U CN219692424 U CN 219692424U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- packing
- cavity
- gland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012856 packing Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 210000004907 gland Anatomy 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 239000004519 grease Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model discloses a middle-channel double-sealing valve, which comprises a valve body, a valve rod and a hand wheel, wherein the valve rod can be arranged on the valve body in a penetrating way in a lifting way, the lower end of the valve rod extends into a valve cavity, and the upper end of the valve rod is in transmission connection with the hand wheel, and the middle-channel double-sealing valve is characterized in that: a first packing groove is formed between the valve rod and the upper end of the valve body, a first packing is arranged in the first packing groove, a first gland is arranged above the first packing, and the first gland is fixed at the upper end of the valve body; the upper end of the valve body is also fixedly provided with a middle body, the valve rod penetrates through the middle body, the lower end of the middle body is provided with a cavity, the cavity is in sealing fit with the upper end of the valve body, the first gland is matched and arranged in the cavity, sealing grease is injected into the cavity, and the corresponding cavity is communicated with a first needle valve and a second needle valve; a second packing groove is arranged between the valve rod and the upper end of the middle body, second packing is arranged in the second packing groove, a second gland is arranged above the second packing, and the second gland is fixed at the upper end of the middle body. The utility model adopts double sealing, and improves the sealing performance.
Description
Technical Field
The utility model relates to an improved utility model in the field of valves, in particular to an improved utility model of a middle-channel double-sealing valve.
Background
The existing valve comprises a valve body, a valve rod and a hand wheel, wherein the valve rod can be arranged on the valve body in a penetrating mode in a lifting mode, the lower end of the valve rod stretches into a valve cavity, the upper end of the valve rod is connected with the hand wheel in a transmission mode, a gland is arranged between the valve rod and the valve body in a filling mode for sealing, only the valve rod is sealed, a fine space generated on a dynamic and static joint surface of the valve due to various factors is difficult to deal with, and therefore leakage of a medium to be sealed cannot be prevented.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing a middle-channel double-sealing valve.
In order to solve the technical problems, the utility model is realized by adopting the following technical scheme: this kind of well way double seal valve, including valve body, valve rod and hand wheel, valve rod liftable removal wears to locate on the valve body, and the valve pocket is stretched into to the valve rod lower extreme, and the valve rod upper end links to each other its characterized in that with the hand wheel transmission: a first packing groove is formed between the valve rod and the upper end of the valve body, a first packing is arranged in the first packing groove, a first gland is arranged above the first packing, and the first gland is fixed at the upper end of the valve body; the upper end of the valve body is also fixedly provided with a middle body, the valve rod penetrates through the middle body, the lower end of the middle body is provided with a cavity, the cavity is in sealing fit with the upper end of the valve body, the first gland is matched and arranged in the cavity, sealing grease is injected into the cavity, and the corresponding cavity is communicated with a first needle valve and a second needle valve; a second packing groove is arranged between the valve rod and the upper end of the middle body, second packing is arranged in the second packing groove, a second gland is arranged above the second packing, and the second gland is fixed at the upper end of the middle body.
The valve body is characterized in that the lower port of the valve body is communicated with a main pipe, the side opening of the valve body is communicated with a branch pipe, the valve rod can lift and cut off or conduct the lower port of the valve body and the side opening, heat medium jackets are respectively arranged outside the main pipe and the branch pipe, and the heat medium jackets are mutually conducted.
The upper end of the middle body is provided with a bracket, the hand wheel is rotatably arranged on the bracket, and is connected with a transmission sleeve which is in threaded transmission connection with the upper end of the valve rod.
The improved middle-channel double-seal valve has the beneficial effects that the valve is provided with the grease injection structure besides the sealing filler, and the rheological property of sealing grease of the valve is mainly provided for the valve, so that the sealing grease of the valve can permeate and fill a tiny space generated on a dynamic and static joint surface of the valve due to various factors, thereby preventing leakage of a medium to be sealed.
Drawings
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a cross-sectional view of the structure of the present utility model.
Detailed Description
The drawings illustrate the structure of the present utility model, and details thereof are further described below with reference to the drawings. In the embodiment, the middle-channel double-sealing valve comprises a valve body 1, a valve rod 2 and a hand wheel 3, wherein the valve rod 2 is arranged on the valve body 1 in a penetrating manner in a lifting manner, the lower end of the valve rod 2 stretches into a valve cavity, the upper end of the valve rod 2 is in transmission connection with the hand wheel 3, a first packing groove is arranged between the valve rod 2 and the upper end of the valve body 1, a first packing 4 is arranged in the first packing groove, a first gland 5 is arranged above the first packing 4, the first gland 5 is fixed at the upper end of the valve body 1, and the valve rod 2 and the valve body 1 are sealed in a packing manner; the upper end of the valve body 1 is fixedly provided with a middle body 6, the valve rod 2 penetrates through the middle body 6, the lower end of the middle body 6 is provided with a cavity 7, the middle body is in sealing fit with the upper end of the valve body 1, a first gland is matched and arranged in the cavity 7, sealing grease is injected into the cavity 7, a first needle valve 8 and a second needle valve 9 are communicated with the corresponding cavity 7, sealing grease and exhaust air are injected into the cavity 7 through the mutual matching of the first needle valve 8 and the second needle valve 9, and the sealing grease can permeate and fill a tiny space generated on a dynamic-static joint surface of the valve due to various factors, so that leakage of a medium to be sealed is prevented; a second packing groove is arranged between the valve rod 2 and the upper end of the middle body 6, a second packing 10 is arranged in the second packing groove, a second pressing cover 11 is arranged above the second packing 10, the second pressing cover 11 is fixed at the upper end of the middle body 6, and the valve rod 2 and the middle body 6 are sealed in a packing mode.
As a further improved specific embodiment, the lower port of the valve body 1 is communicated with a main pipe 12, the side opening of the valve body 1 is communicated with a branch pipe 13, the valve rod 2 can lift and cut off or conduct the lower port and the side opening of the valve body 1, heating medium jackets 14 are respectively arranged outside the main pipe 12 and the branch pipe 13, the heating medium jackets 14 are mutually conducted, and are used for filling heating medium to heat the pipe, keeping the medium in a molten state and facilitating circulation.
As a further improved concrete implementation mode, the upper end of the middle body 6 is provided with a bracket, the hand wheel 3 is rotatably arranged on the bracket, the hand wheel 3 is connected with a transmission sleeve, the transmission sleeve is connected with the upper end of the valve rod 2 in a threaded transmission manner, the transmission sleeve is driven to rotate by the hand wheel 3, and the valve rod 2 is driven to lift by the transmission sleeve.
In summary, the above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (3)
1. The utility model provides a well way double seal valve, including valve body, valve rod and hand wheel, valve rod liftable removal wears to locate on the valve body, and the valve pocket is stretched into to the valve rod lower extreme, and valve rod upper end links to each other its characterized in that with the hand wheel transmission: a first packing groove is formed between the valve rod and the upper end of the valve body, a first packing is arranged in the first packing groove, a first gland is arranged above the first packing, and the first gland is fixed at the upper end of the valve body; the upper end of the valve body is also fixedly provided with a middle body, the valve rod penetrates through the middle body, the lower end of the middle body is provided with a cavity, the cavity is in sealing fit with the upper end of the valve body, the first gland is matched and arranged in the cavity, sealing grease is injected into the cavity, and the corresponding cavity is communicated with a first needle valve and a second needle valve; a second packing groove is arranged between the valve rod and the upper end of the middle body, second packing is arranged in the second packing groove, a second gland is arranged above the second packing, and the second gland is fixed at the upper end of the middle body.
2. The middle-path double seal valve according to claim 1, wherein: the valve body is characterized in that the lower port of the valve body is communicated with a main pipe, the side opening of the valve body is communicated with a branch pipe, the valve rod can lift and cut off or conduct the lower port of the valve body and the side opening, heat medium jackets are respectively arranged outside the main pipe and the branch pipe, and the heat medium jackets are mutually conducted.
3. The middle-path double seal valve according to claim 1, wherein: the upper end of the middle body is provided with a bracket, the hand wheel is rotatably arranged on the bracket, and is connected with a transmission sleeve which is in threaded transmission connection with the upper end of the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320658586.5U CN219692424U (en) | 2023-03-30 | 2023-03-30 | Middle channel double seal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320658586.5U CN219692424U (en) | 2023-03-30 | 2023-03-30 | Middle channel double seal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692424U true CN219692424U (en) | 2023-09-15 |
Family
ID=87946103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320658586.5U Active CN219692424U (en) | 2023-03-30 | 2023-03-30 | Middle channel double seal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692424U (en) |
-
2023
- 2023-03-30 CN CN202320658586.5U patent/CN219692424U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204201078U (en) | A kind of y-type seal ring | |
| CN219692424U (en) | Middle channel double seal valve | |
| CN201047459Y (en) | Durable composite sealed type valve | |
| CN203162203U (en) | Three-plate type internal thread ball valve | |
| CN203009855U (en) | Internal-pressure self-sealing type valve cover stop valve | |
| CN203131074U (en) | Wedge gate valve | |
| CN203462971U (en) | Access door sealing device | |
| CN201521670U (en) | Clamp type medium-pressure knife gate valve | |
| CN203348568U (en) | Flow control valve mechanism | |
| CN201396433Y (en) | Low water pressure double mechanical seal device | |
| CN215596457U (en) | Ceramic ball valve with built-in filler | |
| CN220910528U (en) | Flat gate valve connecting and sealing device | |
| CN214404753U (en) | Low-torque ultralow-temperature wedge gate valve | |
| CN205745618U (en) | A kind of gate valve of detachable stuffing-box | |
| CN205895745U (en) | Die casting machine hydro -cylinder is with letting out seal assembly in preventing | |
| CN204828913U (en) | Pressure is from sealing gate valve | |
| CN204372315U (en) | Corrosion resistant type packing seal structure | |
| CN220910532U (en) | Sealing structure of buried valve of gas pipeline | |
| CN219623286U (en) | All-welded jacketed ball valve | |
| CN220248990U (en) | Ceramic regulating valve coordinated with respect to linear isotacticity | |
| CN215172422U (en) | Ball type valve body | |
| CN214579004U (en) | Double-eccentric soft sealing butterfly valve with spherical lower valve rod end face | |
| CN213685305U (en) | Novel soft seal butterfly valve | |
| CN108799537A (en) | A kind of plug-in loose joint valve | |
| CN219712355U (en) | All-metal hard sealing butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |