CN203037103U - High-temperature medium voltage tube shell type heat exchanger - Google Patents
High-temperature medium voltage tube shell type heat exchanger Download PDFInfo
- Publication number
- CN203037103U CN203037103U CN 201220638564 CN201220638564U CN203037103U CN 203037103 U CN203037103 U CN 203037103U CN 201220638564 CN201220638564 CN 201220638564 CN 201220638564 U CN201220638564 U CN 201220638564U CN 203037103 U CN203037103 U CN 203037103U
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- tube
- floating head
- heat exchanger
- head
- housing
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Abstract
The utility model discloses a high-temperature medium voltage tube shell type heat exchanger which comprises a shell body, a floating head, tube plates and a heat exchange tube bundle which is located in the shell body. Two ends of the heat exchange tube bundle are connected with the tube plates, one end of the floating head is connected with the heat exchange tube bundle through one tube plate at one end, the other end of the floating head is connected with a floating head part which is provided with a tube head, the floating head end of the shell body is connected with a connection tube, a sealing groove is formed in the inner wall of the connection tube, the tube head of the floating head part is matched with the inner wall of the connection tube, sealing padding is arranged in the sealing groove of the inner wall of the connection tube, and the sealing padding is graphite packing. The high-temperature medium voltage tube shell type heat exchanger is simple and reasonable in structure, effectively achieves compensation, completely removes thermal stress and has certain promotional value.
Description
Technical field
This practicality relates to a kind of heat transmission equipment technical field, is specifically related to pressure pipe shell heat exchanger in a kind of high temperature.
Background technology
The pressure pipe shell heat exchanger is made up of parts such as housing, heating surface bank, tube sheet, deflection plate (baffle plate) and bobbin carriages usually in the high temperature.Housing mostly is cylindrical shape, and tube bank is equipped with in inside, and the tube bank two ends are fixed on the tube sheet.Because the temperature difference of outer fluid in the pipe, therefore the housing of heat exchanger is also different with the temperature of tube bank.If two temperatures differs greatly, will produce very big thermal stress in the heat exchanger, cause tube bending, fracture, or pull from tube sheet.Therefore, when tube bank surpasses 50 ℃ with the case temperature difference, need take the adequate compensation measure, to eliminate or the minimizing thermal stress.At present, be movable tube sheets heat exchanger according to modal indemnifying measure, but restrain the tube sheet free floating of an end, eliminated thermal stress fully, and whole tube bank can extract out from housing, be convenient to that machinery cleans and maintenance.But, for the assurance heat exchanger leakage phenomenon can not occur, the structure more complicated of existing movable tube sheets heat exchanger, cost is higher.
The utility model content
The purpose of this utility model is in order to solve above-mentioned the deficiencies in the prior art, pressure pipe shell heat exchanger in a kind of high temperature to be provided, and its structure adopts movable tube sheets heat exchanger structure, and it is simple in structure, can realize compensation effectively, has eliminated thermal stress fully.
The technical scheme that the technical problem that the utility model solves adopts is:
Pressure pipe shell heat exchanger in a kind of high temperature, it comprises housing, floating head, tube sheet and is positioned at the heat-exchanging tube bundle of housing, the two ends of heat-exchanging tube bundle are connected with tube sheet, one end of raising the nose above water to breathe and heat-exchanging tube bundle link to each other by an end tube sheet wherein, it is characterized in that the other end of raising the nose above water to breathe is connected with the floating head spare that is provided with tube head, the floating head end of housing is connected with tube connector, and the tube connector inwall is provided with seal groove, the tube head of floating head part and the inwall of tube connector are suitable, are provided with airtight and watertight padding in the seal groove of tube connector inwall.
During concrete enforcement, airtight and watertight padding is graphite packing.Graphite packing has resistant to elevated temperatures characteristics.
During use, because being provided with graphite packing between the tube head of floating head part and the inwall of tube connector seals, the gas of the inner chamber of housing can not revealed, the tube head of floating head part can move around in tube connector, when very big temperature difference appears in tube bank and housing, realize effectively compensation heat-exchanging tube bundle bending, fracture can occurring, or from phenomenons such as tube sheet pull, it is rational in infrastructure simple.
The beneficial effects of the utility model are: the utility model is rational in infrastructure simple, realizes compensation effectively, has eliminated thermal stress fully, has certain popularization value.
Description of drawings
Below in conjunction with drawings and Examples utility model is further specified.
The structural representation of Fig. 1 the utility model embodiment.
Among the figure: 1, housing 2, floating head 3, tube sheet 4, heat-exchanging tube bundle 5, floating head part 6, tube connector 7, graphite packing 51, tube head 61, seal groove.
The specific embodiment
In Fig. 1, pressure pipe shell heat exchanger in a kind of high temperature, it comprises housing 1, floating head 2, tube sheet 3 and is positioned at the heat-exchanging tube bundle 4 of housing 1, the two ends of heat-exchanging tube bundle 4 are connected with tube sheet 3, raising the nose above water to breathe an end of 2 and the heat-exchanging tube bundle 4 end tube sheet 3 by wherein links to each other, the other end of floating head 2 is connected with the floating head spare 5 that is provided with tube head 51 with the flange bolt connection piece, floating head 2 ends of housing 1 are connected with tube connector 6, tube connector 6 inwalls are provided with seal groove 61, the tube head 51 of floating head part 5 is suitable with the inwall of tube connector 6, is provided with graphite packing 7 in the seal groove 61 of tube connector 6 inwalls.
During use, owing to be provided with graphite packing 7 between the tube head 51 of floating head part 5 and the inwall of tube connector 6, the gas of the inner chamber of housing 1 can not revealed, the tube head 51 of floating head part 5 can move around in tube connector 6, when very big temperature difference appears in heat-exchanging tube bundle 4 and housing 1, realize effectively compensation heat-exchanging tube bundle 4 bendings, fracture can occurring, or from phenomenons such as tube sheet pull, it is rational in infrastructure simple.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from disclosed content of the present utility model all should be thought protection domain of the present utility model.
Claims (2)
1. pressure pipe shell heat exchanger in the high temperature, it comprises housing, floating head, tube sheet and is positioned at the heat-exchanging tube bundle of housing, the two ends of heat-exchanging tube bundle are connected with tube sheet, one end of raising the nose above water to breathe and heat-exchanging tube bundle link to each other by an end tube sheet wherein, it is characterized in that the other end of raising the nose above water to breathe is connected with the floating head spare that is provided with tube head, the floating head end of housing is connected with tube connector, and the tube connector inwall is provided with seal groove, the tube head of floating head part and the inwall of tube connector are suitable, are provided with airtight and watertight padding in the seal groove of tube connector inwall.
2. pressure pipe shell heat exchanger in a kind of high temperature according to claim 1 is characterized in that airtight and watertight padding is graphite packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638564 CN203037103U (en) | 2012-11-28 | 2012-11-28 | High-temperature medium voltage tube shell type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638564 CN203037103U (en) | 2012-11-28 | 2012-11-28 | High-temperature medium voltage tube shell type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037103U true CN203037103U (en) | 2013-07-03 |
Family
ID=48689218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220638564 Expired - Lifetime CN203037103U (en) | 2012-11-28 | 2012-11-28 | High-temperature medium voltage tube shell type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203037103U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180688A (en) * | 2014-07-31 | 2014-12-03 | 南通星球石墨设备有限公司 | Tube nest type graphite heat exchanger |
| CN104896976A (en) * | 2015-06-17 | 2015-09-09 | 湖北长江石化设备有限公司 | High temperature difference, high pressure difference and easily maintained steam generator |
-
2012
- 2012-11-28 CN CN 201220638564 patent/CN203037103U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180688A (en) * | 2014-07-31 | 2014-12-03 | 南通星球石墨设备有限公司 | Tube nest type graphite heat exchanger |
| CN104180688B (en) * | 2014-07-31 | 2016-06-08 | 南通星球石墨设备有限公司 | A kind of tube-type graphite heat exchanger |
| CN104896976A (en) * | 2015-06-17 | 2015-09-09 | 湖北长江石化设备有限公司 | High temperature difference, high pressure difference and easily maintained steam generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |