CN104315176A - Self-balance thermal-insulation gate valve - Google Patents
Self-balance thermal-insulation gate valve Download PDFInfo
- Publication number
- CN104315176A CN104315176A CN201410560845.6A CN201410560845A CN104315176A CN 104315176 A CN104315176 A CN 104315176A CN 201410560845 A CN201410560845 A CN 201410560845A CN 104315176 A CN104315176 A CN 104315176A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- self
- flashboard
- gate
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
Abstract
The invention belongs to the field of valves and discloses a self-balance thermal-insulation gate valve. The self-balance thermal-insulation gate valve comprises a valve body, a valve rod and a gate plate. The gate plate is connected with the gate rod and arranged in the valve body, a balance cavity is formed between the lower end of the valve plate and the valve body, and the gate plate is provided with a self-balance hole; metal valve seats are hermetically attached to two sides of the valve plate and embedded into the valve body; the contact surface of each valve set and the valve body is provided with an annular groove, and self-limit electric heat tapes are arranged in the annular grooves; a flange fitting the self-limit electric heat tapes in width is connected to a position, perpendicular to each annular groove, of the valve body. By the self-balance thermal-insulation gate valve, the problem of thermal insulation of the gate valve is effectively solved.
Description
Technical field
The present invention 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.
Summary of the invention
The present invention aims to provide a kind of self balancing heat insulation gate valve, to solve the problem.
For achieving the above object, technological scheme of the present invention 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, beneficial effect of the present invention is: 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 self balancing heat insulation gate valve structural representation provided by the invention.
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 present invention will be further described.
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 present invention, 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 |
|---|---|---|---|
| CN201410560845.6A CN104315176A (en) | 2014-10-21 | 2014-10-21 | Self-balance thermal-insulation gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410560845.6A CN104315176A (en) | 2014-10-21 | 2014-10-21 | Self-balance thermal-insulation gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104315176A true CN104315176A (en) | 2015-01-28 |
Family
ID=52370453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410560845.6A Pending CN104315176A (en) | 2014-10-21 | 2014-10-21 | Self-balance thermal-insulation gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104315176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3487849A (en) * | 1967-09-18 | 1970-01-06 | Koppers Co Inc | Valve |
| CN1421630A (en) * | 2001-11-26 | 2003-06-04 | 速睦喜股份有限公司 | Lift valve with heater |
| CN1428528A (en) * | 2001-12-25 | 2003-07-09 | 速睦喜股份有限公司 | Lift valve with heater |
| CN2702135Y (en) * | 2003-12-01 | 2005-05-25 | 陈建华 | Electro thermal temperature controlled ball valve for fire-fighting truck |
| CN201992103U (en) * | 2011-04-13 | 2011-09-28 | 福建菲达阀门有限公司 | Novel automatic pressure relief wedge gate valve |
| CN202893755U (en) * | 2012-11-09 | 2013-04-24 | 西安希佛隆阀门有限公司 | Online pipeline cleaning device |
| CN204127348U (en) * | 2014-10-21 | 2015-01-28 | 成都市翻鑫家科技有限公司 | A kind of self balancing heat insulation gate valve |
-
2014
- 2014-10-21 CN CN201410560845.6A patent/CN104315176A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3487849A (en) * | 1967-09-18 | 1970-01-06 | Koppers Co Inc | Valve |
| CN1421630A (en) * | 2001-11-26 | 2003-06-04 | 速睦喜股份有限公司 | Lift valve with heater |
| CN1428528A (en) * | 2001-12-25 | 2003-07-09 | 速睦喜股份有限公司 | Lift valve with heater |
| CN2702135Y (en) * | 2003-12-01 | 2005-05-25 | 陈建华 | Electro thermal temperature controlled ball valve for fire-fighting truck |
| CN201992103U (en) * | 2011-04-13 | 2011-09-28 | 福建菲达阀门有限公司 | Novel automatic pressure relief wedge gate valve |
| CN202893755U (en) * | 2012-11-09 | 2013-04-24 | 西安希佛隆阀门有限公司 | Online pipeline cleaning device |
| CN204127348U (en) * | 2014-10-21 | 2015-01-28 | 成都市翻鑫家科技有限公司 | A kind of self balancing heat insulation gate valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
| CN117386836B (en) * | 2023-12-13 | 2024-02-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |