CN2063220U - Composite pad for plate-type heat exchanger - Google Patents
Composite pad for plate-type heat exchanger Download PDFInfo
- Publication number
- CN2063220U CN2063220U CN 90201576 CN90201576U CN2063220U CN 2063220 U CN2063220 U CN 2063220U CN 90201576 CN90201576 CN 90201576 CN 90201576 U CN90201576 U CN 90201576U CN 2063220 U CN2063220 U CN 2063220U
- Authority
- CN
- China
- Prior art keywords
- asbestos
- heat exchanger
- plate
- type heat
- pad
- 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.)
- Withdrawn
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Abstract
The utility model discloses a composite pad for plate-type heat exchangers. The external surfaces of an asbestos pad and elastic graphite which is bonded on one side which is used for bearing the pressing force of a plate sheet are coated with polytetrafluoroethylene films to make the pad endure high temperature of 250 DEG and pressure of 1.6 MPa, and the price of the pad is only one fifth of the price of fluororubber.
Description
The utility model relates to a kind of Composition spacer that is used for plate type heat exchanger, it be applicable to have Korrosionsmedium, temperature is in the various operating modes below 250 ℃.
The pad that existing plate type heat exchanger is used, generally all make by homogenous material, commonly used have an acrylonitrile-butadiene rubber, EPDM, material such as fluorosioloxane rubber and asbestos, although the pad that these materials are made has obtained using widely in a lot of fields, but at oil, chemical industry etc. have the operating mode of high temperature strong corrosion, the overwhelming majority in these pads just is difficult to be competent at, though the pad that asbestos board is made can meet the demands aspect corrosion-resistant in heatproof, but since the plate rigidity of the little plate type heat exchanger in addition of asbestos board elasticity again a little less than, can't stand desired pressure so the pad made from asbestos board is contained in often to hold on the plate type heat exchanger.Though can be competent at the rubber sheet gasket that indivedual fields have, price is more expensive.For example in system sulfuric acid operating mode, the pad that fluorubber is made is used for plate type heat exchanger, and 100 ℃ of following temperature of ability, 0.6MPa are with the sulfuric acid corrosion of downforce, but price is more expensive.The BR05 template sheet pad that fluorubber is made, its price are more than ten times of the plate pad price made of same specification acrylonitrile-butadiene rubber.If add the plate made with acid resisting steel, pipe fitting etc., this veneer area 0.5m
2, have 40m
2The heat exchanger price of heat exchange area is to have about 4 times of the specification general service heat exchanger price identical with heat exchange area, just give thisly have compact conformation, floor space is little, heat transfer efficiency is high, operating flexibility is big, heat loss is little, application that the heat exchanger that cleans advantage such as convenient is installed brings great inconvenience.
The purpose of this utility model is to provide a kind of heatproof below 250 ℃, and withstand voltage 1.6MPa is following and have a plate type heat exchanger Composition spacer of resistant to corrosive media corrosion.
The purpose of this utility model is to realize like this.This plate type heat exchanger Composition spacer is cut into by the asbestos thin plate or punching become the asbestos washer of plate type heat exchanger pad required form and nationality identical with the asbestos washer shape help binding agent be bonded in asbestos washer one or two bear the side of plate thrust the elastic graphite thin layer, twine the polytetrafluoroethylene film that method or methods such as resin infusion process or spraying process are coated on asbestos and elastic graphite outside with film and formed.
As everyone knows, asbestos also have the advantage of the corrosion and the etch of anti-diluted acid, weak acid, alkali, salt, oils and organic solvent except adapting to 300 ℃ high temperature.Because the architectural feature and the asbestos elasticity of plate type heat exchanger are little, so the general pad that seldom is used as plate type heat exchanger of asbestos.Elastic graphite has corrosion-and high-temp-resistant, and the compressive resistance advantages of higher also has tensile strength low, deficiencies such as poor ductility.The applicable temperature range of polytetrafluoroethylene (PTFE) is-200 °～+ 260 ℃, and almost can resist the corrosion of all chemical mediators, but processing difficulties has limited its application in plate type heat exchanger with costing an arm and a leg.The weak point that plate type heat exchanger Composition spacer of the present utility model utilizes these three kinds of materials advantage separately to complement each other is each other made.
At first will have corrosion resistance and good, asbestos thin plate that price is lower is cut into or punching to become the shape of plate type heat exchanger pad, the thickness of asbestos board be that the depth by the wave groove on the plate is determined.Generally be 3.0～6.0mm.In order to improve the logy problem of asbestos washer, be cut into or one or two side of bearing the plate thrust of the asbestos washer of punching moulding is the elastic graphite thin layer of 0.2～0.8mm with binding agent bonding last layer thickness.Owing to reasons such as the characteristic of elastic graphite and binding agents, heat exchanger takes place easily when maintenance or when assembling compresses that pad comes off or phenomenon such as skid.In order to overcome above-mentioned phenomenon, Composition spacer of the present utility model is that polytetrafluoroethylene film is being stained with the asbestos washer outside writhing number layer of elastic graphite, or the asbestos washer that will be stained with elastic graphite is immersed in the polyflon, or be stained with method coating one deck polytetrafluoroethylene films such as asbestos washer outside spraying one deck polyflon of elastic graphite, solve the price problem of heatproof, corrosion-resistant plate type heat exchanger pad, enlarged the application of this high-performance heat exchanger again.
Accompanying drawings is as follows.
Fig. 1 is the profile of the utility model Composition spacer.The asbestos thin plate is cut into or punching becomes the asbestos washer 1 of plate type heat exchanger gasket shape, elastic graphite thin layer 2 its shapes that boning on two side A that bears the plate thrust and B are identical with the Graphite pad shape, coating one deck polytetrafluoroethylene film 3 at asbestos washer 1 and the outside that is bonded at the elastic graphite 2 on the asbestos washer.
Fig. 2 is another embodiment profile of the utility model Composition spacer.The asbestos thin plate is cut into or punching becomes the asbestos washer 1 of plate type heat exchanger gasket shape, bear the shape elastic graphite 2 identical that boning on the side A of plate thrust or the B at one, coating one deck polytetrafluoroethylene film 3 in the outside of asbestos washer and elastic graphite with the asbestos board shape.Present embodiment is suitable for the operating mode of pressure below 1.0MPa, and the pad cost is more reduced.
Adopt composite pad for plate-type heat exchanger of the present utility model, the price of plate type heat exchanger is reduced, application is widened, because the price of the utility model Composition spacer is not as good as 1/5 of the fluororubber pad price, and can anti-250 ℃ high temperature, the high pressure of 1.6MPa, application prospect is fine.
Claims (1)
1, a kind of plate type heat exchanger Composition spacer of making by materials such as asbestos, elastic graphite, polytetrafluoroethylene (PTFE), it is characterized in that this Composition spacer is cut into by the asbestos thin plate or punching become the identical and nationality of asbestos washer, shape and the asbestos washer of plate type heat exchanger pad required form help binding agent be bonded in asbestos washer one or two bear the side of plate thrust the elastic graphite thin layer, twine method, resin with film and soak the polytetrafluoroethylene film that methods such as method or resin spraying process are coated on asbestos washer and are bonded in the elastic graphite outside on the asbestos washer and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201576 CN2063220U (en) | 1990-02-14 | 1990-02-14 | Composite pad for plate-type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201576 CN2063220U (en) | 1990-02-14 | 1990-02-14 | Composite pad for plate-type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2063220U true CN2063220U (en) | 1990-10-03 |
Family
ID=4883156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90201576 Withdrawn CN2063220U (en) | 1990-02-14 | 1990-02-14 | Composite pad for plate-type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2063220U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726211B (en) * | 2008-10-19 | 2012-11-07 | 四平维克斯换热设备有限公司 | High-temperature solidification bonding method of spacer and plate in plate type heat exchanger |
| CN108716873A (en) * | 2013-01-30 | 2018-10-30 | 阿尔法拉瓦尔股份有限公司 | Attached device, gasket device and component |
-
1990
- 1990-02-14 CN CN 90201576 patent/CN2063220U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726211B (en) * | 2008-10-19 | 2012-11-07 | 四平维克斯换热设备有限公司 | High-temperature solidification bonding method of spacer and plate in plate type heat exchanger |
| CN108716873A (en) * | 2013-01-30 | 2018-10-30 | 阿尔法拉瓦尔股份有限公司 | Attached device, gasket device and component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |