CN204127348U - A kind of self balancing heat insulation gate valve - Google Patents
A kind of self balancing heat insulation gate valve Download PDFInfo
- Publication number
- CN204127348U CN204127348U CN201420608484.3U CN201420608484U CN204127348U CN 204127348 U CN204127348 U CN 204127348U CN 201420608484 U CN201420608484 U CN 201420608484U CN 204127348 U CN204127348 U CN 204127348U
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- CN
- China
- Prior art keywords
- valve
- valve body
- flashboard
- self
- self balancing
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- Expired - Fee Related
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- Temperature-Responsive Valves (AREA)
Abstract
The utility model discloses a kind of self balancing heat insulation gate valve, belong to valve field.This self balancing heat insulation gate valve comprises valve body, valve rod, also includes the flashboard be connected with valve rod, and flashboard is arranged in valve body, forms counter balance pocket between flashboard lower end and valve body, and on flashboard, have self balancing hole; Described flashboard both sides also seal and are fitted with metal seat valve, and valve seat is embedded in valve body; Described valve seat and valve body contact face have annular groove, are provided with self limiting type electric-heating belt in annular groove; Described valve body is also connected with size and the suitable flange of Self-limited electric heating band width perpendicular to annular groove place.The utility model is adopted to efficiently solve the insulation problem of gate valve.
Description
Technical field
The utility model relates to valve field, specifically a kind of self balancing heat insulation gate valve.
Background technique
Gate valve makes open-shut device with flashboard and move along valve seat axes normal direction, to realize the valve of switching motion.Gate valve can only standard-sized sheet and complete shut-down, and open-shut device is flashboard, moving direction and flow direction perpendicular, square I-shaped gate valve two sealing surfaces form wedge shapes, key groove is different with valve parameter.
Often high viscosity medium can be run in the industrial field such as chemical industry, pharmacy; now must carry out isothermal holding to gate valve; after avoiding temperature to reduce; medium easily crystallization on flashboard; affect smooth keying and the sealability of flashboard thus; and the exception of temperature raises, easily form pressure reduction, after causing gate valve to be closed, difficulty is opened in recurrence.
Model utility content
The utility model aims to provide a kind of self balancing heat insulation gate valve, to solve the problem.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of self balancing heat insulation gate valve, comprise valve body, valve rod, it is characterized in that: also include the flashboard be connected with valve rod, flashboard is arranged in valve body, forms counter balance pocket between flashboard lower end and valve body, and on flashboard, have self balancing hole; Described flashboard both sides also seal and are fitted with metal seat valve, and valve seat is embedded in valve body; Described valve seat and valve body contact face have annular groove, are provided with self limiting type electric-heating belt in annular groove; Described valve body is also connected with size and the suitable flange of Self-limited electric heating band width perpendicular to annular groove place.
Further, described valve seat welds with valve body to retrain and fixes.
Further, described self balancing hole is communicated with valve body inlet channel and counter balance pocket.
One, the beneficial effects of the utility model are: the self limiting type electric-heating belt adopted is a kind of energy-saving electrical tracing special cable, has very high positive temperature characteristic with general electric heating unlike it; Temperature is higher, and resistance is higher, and power is less.Effectively can prevent the abnormal rising of heating-up temperature, cause vaporizes in valve body, thus the imbalance of pressure in valve body.
Two, directly on valve seat, groove is had, arrange heating element in groove, heating effect is obvious, effectively can prevent medium Yin Wendu from reducing and produce crystallization, when avoiding crystallisation adsorption that gate valve can be caused on flashboard to open and close, wearing and tearing are accelerated, and have a strong impact on the problem in the working life of gate valve.
Three, on flashboard, have self balancing hole be communicated with valve body inlet channel and counter balance pocket, after gate valve is closed, pressure in counter balance pocket and valve body inlet passage is in state of equilibrium all the time, can not Yin Wendu raise after cause valve body inlet and counter balance pocket pressure reduction excessive, cause gate valve to restart difficulty.
Accompanying drawing explanation
Fig. 1 is the self balancing heat insulation gate valve structural representation that the utility model provides.
Mark in figure: 1 be valve body, 2 be valve rod, 3 be flashboard, 4 be self balancing hole, 5 be counter balance pocket, 6 be annular groove, 7 for valve seat.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
As shown in Figure 1, a kind of self balancing heat insulation gate valve, comprises valve body 1, valve rod 2, also includes the flashboard 3 be connected with valve rod 1, and flashboard 3 is arranged in valve body 1, forms counter balance pocket 5 between flashboard 3 lower end and valve body 1, and has self balancing hole 4 on flashboard 3; Described flashboard 3 both sides also seal and are fitted with metal seat valve 7, and valve seat 7 is embedded in valve body 1; Described valve seat 7 has annular groove 6 with valve body 1 surface of contact, is provided with self limiting type electric-heating belt in annular groove 6; Described valve body 1 is also connected with size and the suitable flange of Self-limited electric heating band width perpendicular to annular groove 5 place.Described valve seat 7 welds with valve body 1 to retrain and fixes.Described self balancing hole 4 is communicated with valve body 1 inlet channel and counter balance pocket 5.
In a pre-installation, by Self-limited electric heating band around annular groove 5 be wound around a circle or a few, then to draw from the flange valve body 1, and to connect with the mains.Self limiting type electric-heating belt is a kind of energy-saving electrical tracing special cable, has very high positive temperature characteristic with general electric heating unlike it; Temperature is higher, and resistance is higher, and power is less.Effectively can prevent the abnormal rising of heating-up temperature, cause vaporizes in valve body, thus the imbalance of pressure in valve body.After flashboard 3 is depressed, counter balance pocket 5 is closed, and is only communicated with the media inlet channel in valve body 1 by self balancing hole 4.Medium acts on flashboard 3, and enters in counter balance pocket 5 and fill up.Pressure in counter balance pocket 5 and valve body 1 inlet channel is in state of equilibrium all the time, can not Yin Wendu raise after cause valve body 1 entrance and counter balance pocket 5 pressure reduction excessive, cause gate valve to restart difficulty.Adopt the utility model, structure simply, easily realizes, and effectively can solve the insulation problem of gate valve.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a self balancing heat insulation gate valve, comprises valve body, valve rod, it is characterized in that: also include the flashboard be connected with valve rod, and flashboard is arranged in valve body, forms counter balance pocket between flashboard lower end and valve body, and on flashboard, have self balancing hole; Described flashboard both sides also seal and are fitted with metal seat valve, and valve seat is embedded in valve body; Described valve seat and valve body contact face have annular groove, are provided with self limiting type electric-heating belt in annular groove; Described valve body is also connected with size and the suitable flange of Self-limited electric heating band width perpendicular to annular groove place.
2. self balancing heat insulation gate valve according to claim 1, is characterized in that: described valve seat welds with valve body to retrain and fixes.
3. self balancing heat insulation gate valve according to claim 1, is characterized in that: described self balancing hole is communicated with valve body inlet channel and counter balance pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608484.3U CN204127348U (en) | 2014-10-21 | 2014-10-21 | A kind of self balancing heat insulation gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608484.3U CN204127348U (en) | 2014-10-21 | 2014-10-21 | A kind of self balancing heat insulation gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127348U true CN204127348U (en) | 2015-01-28 |
Family
ID=52383706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420608484.3U Expired - Fee Related CN204127348U (en) | 2014-10-21 | 2014-10-21 | A kind of self balancing heat insulation gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204127348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315176A (en) * | 2014-10-21 | 2015-01-28 | 成都市翻鑫家科技有限公司 | Self-balance thermal-insulation gate valve |
| TWI686556B (en) * | 2019-02-26 | 2020-03-01 | 日揚科技股份有限公司 | Heating gate valve |
-
2014
- 2014-10-21 CN CN201420608484.3U patent/CN204127348U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315176A (en) * | 2014-10-21 | 2015-01-28 | 成都市翻鑫家科技有限公司 | Self-balance thermal-insulation gate valve |
| TWI686556B (en) * | 2019-02-26 | 2020-03-01 | 日揚科技股份有限公司 | Heating gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20151021 |
|
| EXPY | Termination of patent right or utility model |