CN2372651Y - Changeable cross-section positive displacement heat exchanger - Google Patents
Changeable cross-section positive displacement heat exchanger Download PDFInfo
- Publication number
- CN2372651Y CN2372651Y CN 99228570 CN99228570U CN2372651Y CN 2372651 Y CN2372651 Y CN 2372651Y CN 99228570 CN99228570 CN 99228570 CN 99228570 U CN99228570 U CN 99228570U CN 2372651 Y CN2372651 Y CN 2372651Y
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- heat
- heat exchanger
- tube bundle
- cooling section
- exchanging tube
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- Expired - Fee Related
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Abstract
The utility model relates to a positive displacement or half positive displacement heat exchanger, comprising a vertical type tank body or a horizontal type tank body and a heat exchanger, wherein, the heat exchanger is composed of a guide flow cylinder, a heat-exchange pipe bundle, a deflector plate, and a channel box. The heat-exchange pipe bundle is composed of a plurality of U-shaped pipes which are all arranged in the guide flow cylinder which is positioned in the tank body. A water inlet and a water outlet are arranged on the tank body out of which the channel box is positioned. A heating medium inlet and a heating medium outlet are arranged on the channel box and the tank body is provided with the water outlet. The changeable cross-section positive displacement heat exchanger is characterized in that the mouth of each U-shaped pipe of the heat-exchange pipe bundle at the cooling section corresponding to the nearby position of the channel box heating medium outlet is orderly communicated and connected with each other from beginning to end in a single channel mode or a multi-channel mode to form the integral single channel or multi-channel condensed water circulating channel at the cooling section.
Description
The utility model relates to a kind of heat-exchange apparatus, the heat-exchange apparatus of especially a kind of positive displacement or half-volume type.
Traditional positive displacement or half-volume type heat exchanger are made up of tank body, water inlet pipe, outlet pipe, heat-exchanging tube bundle, bobbin carriage, heating agent import, heating agent outlet etc., its heat exchange weak effect, and capacity utilization is low, and equipment needed thereby quantity is many, investment is big, floor space is big.
Chinese patent 892154497 " four-stroke volumetric heat exchanger ", 912243279 " vertical volumetric heat exchangers ", 932193862 " half-volume type heat exchangers " and 932402062 " water conservancy diversion multiple-pass volumetric heat exchanger ", the method of tube pass partition, deflection plate and arc kuppe is set up in employing, the heat exchange effect is significantly improved, but still remain the need for further improvement.
One, when heating agent is steam, because steam is identical with the tube side actual internal area of its condensed water, and the flow of condensate liquid is than little many of steam flow, thereby very low at the flow velocity of cooling section heat exchanger tube inner condensat liquid, the tube fluid film heat transfer coefficient is little, so heat exchanger cooling section overall heat-transfer coefficient K is little.The positive displacement of above-mentioned patent type or half-volume type heat exchanger though can save energy 15% by the cooling of condensate liquid, reclaim the required heat exchange area of this part heat (being the heat exchange area of cooling section) and account for 45% of total heat exchange area.
They are two years old, when heating agent is low-temperature water heating, because the heat exchanger structure of above-mentioned patent type product is shell-side 1 journey, pipe side 2 journeys or 2n journey only are 0.74～0.82 by its heating agent and the design import and export temperature correction factor F that draw, that calculate effective mean temperature difference that is heated water.Unreasonable economically on the one hand, if operating temperature slightly changes, the F value just may sharply descend on the other hand, will influence the stability of operation like this.
The purpose of this utility model provides a kind of improved variable cross-section volumetric heat exchanger, heating agent (steam) condensate liquid is significantly improved at the flow velocity of tube side cooling section, being heated water comes and goes mobile at shell side vertically, improve temperature difference correction factor, thereby improve overall heat-transfer coefficient, heat exchange amount and operational stability, reduce investment outlay and the energy.
Technical solution of the present utility model: a kind of variable cross-section volumetric heat exchanger, it is made up of vertical or horizontal tank body and heat exchanger, wherein heat exchanger is by guide shell, heat-exchanging tube bundle, deflection plate, bobbin carriage constitutes, heat-exchanging tube bundle is many U type pipes, be set with deflection plate on it, they together are placed in the guide shell, the heat-exchanging tube bundle outer end is connected with tube sheet, the guide shell openend connects as one by flange and bobbin carriage, and with the tube sheet clamping in the middle of them, guide shell is positioned at tank body, which is provided with water inlet and delivery port, bobbin carriage is positioned at outside the tank body, which is provided with the outlet of heating agent import and heating agent, is provided with pass partition in it, tank body is provided with delivery port, the cooling section heat-exchanging tube bundle that it is characterized in that near the position of corresponding bobbin carriage heating agent outlet, the mouth of pipe of its each U type pipe form the single channel or the multichannel condensation flow circulation passage of cooling section integral body with single channel or multichannel head and the tail connection connection successively.
The advantage of variable cross-section muitishell volumetric heat exchanger of the present utility model: when heating agent is steam, because condensate liquid can only flow in 1 of the heat-exchanging tube bundle cooling section or plurality of tubes, flow velocity is big, make the overall heat-transfer coefficient of cooling section improve about 3 times, thereby the heat exchange area of cooling section can reduce 70%, and the ratio that the cooling section heat exchange area accounts for total heat exchange area can reduce to 20%.When heating agent is low-temperature water heating, because 1～2 water flat or straight shell side pass partition is set between heat-exchanging tube bundle and guide shell, thereby make temperature difference correction factor bring up to 0.95～0.98, the heat exchange amount can improve 17%～30%, and operational stability is good.The utility model is applicable to industry and civilian hot water supply system.
Below in conjunction with drawings and Examples variable cross-section volumetric heat exchanger of the present utility model is further described:
Fig. 1 is the structural representation of horizontal variable cross-section volumetric heat exchanger;
Fig. 2 is the structural representation of vertical variable cross-section volumetric heat exchanger;
Fig. 3 is Fig. 1,2 A-A generalized section;
Fig. 4 is Fig. 1,2 B-B amplification profile schematic diagram.
As Fig. 1-4, the utility model is made up of vertical or horizontal tank body 1 and heat exchanger 2, wherein heat exchanger 2 is by guide shell 3, heat-exchanging tube bundle 4, deflection plate 5, bobbin carriage 6 constitutes, heat-exchanging tube bundle 4 is many U type pipes, be set with deflection plate 5 on it, they together are placed in the guide shell 3, heat-exchanging tube bundle 4 outer ends are connected with tube sheet 7, guide shell 3 openends connect as one by flange 8 and bobbin carriage 6, and with tube sheet 7 clampings in the middle of them, guide shell 3 is positioned at tank body 1, which is provided with water inlet 9 and delivery port 10, bobbin carriage 6 is positioned at outside the tank body 1, which is provided with heating agent import 11 and heating agent outlet 12, be provided with pass partition 13 in it, tank body 1 is provided with delivery port 14, after above-mentioned heat-exchanging tube bundle 4 outer ends are connected on the tube sheet 7, just make the import and export of each U type pipe be distributed on the tube sheet 7 of tube case side, characteristics of the present utility model are near cooling section heat-exchanging tube bundles 4 of the position corresponding bobbin carriage 6 heating agents outlet 12, the mouth of pipe of its each U type pipe forms the single channel or the multichannel condensation flow circulation passage of cooling section integral body with single channel or multichannel head and the tail connection connection successively.
In the utility model, the single channel condensed water circulating channel structure that cooling section heat-exchanging tube bundle 4 each U type pipe are formed is, keep the import of a U type pipe in the cooling section heat-exchanging tube bundle 4, the outlet of this U type pipe links to each other with the import of another cooling section U type pipe, the rest may be inferred, keep the outlet of last U type pipe at last, form holistic single channel condensation flow circulation passage, shown in Figure 4 be this situation.
The structure of multichannel condensation flow circulation passage is, keep the import of cooling section heat-exchanging tube bundle 4 two or more U type pipes, these two or more corresponding with other cooling section U type pipe import respectively linking to each other of U type pipe outlet, the rest may be inferred, keep the outlet of last two or more U type pipes at last, form two or more integral body multichannel condensation flow circulation passage independently separately.The number of multiplexer channel falls size on the size of condensate liquid flow and tube side pressure to be decided.Like this, when heating agent is steam, just can makes selectively repeatedly to come and go in steam condensate (SC) each U type pipe in single channel or multi-way stream circulation passage and flow,, the overall heat-transfer coefficient of cooling section also be improved greatly so flow velocity improves greatly.
In the utility model, the head and the tail of each U type pipe connect and can be communicated with connection by elbow 16 in the cooling section heat-exchanging tube bundle 4, also can be communicated with by other connector to connect.
The variable cross-section muitishell volumetric heat exchanger heat exchange course of work of the present utility model is as follows:
After entering bobbin carriage 6 by heating agent import 11 when heating agent is steam, by tube pass partition 13, all be condensed into condensate liquid through coming and going for 4～6 times after flowing through heat-exchanging tube bundle 4 condensation segments, then condensate liquid flows in single channel or the multichannel condensation flow circulation passage and repeatedly comes and goes with high flow velocities, by tube wall with heat pass to that heat-exchanging tube bundle is 4 outer, cold water in the guide shell 3.When heating agent is low-temperature water heating, 1～2 level or vertical shell side pass partition 15 are set, make to be heated water repeatedly round vertically flowing in guide shell 33 of heat-exchanging tube bundle 4 and guide shells.Being heated water enters in the guide shell 3 from water inlet 9, lower space at shell side pass partition 15 is washed away heat-exchanging tube bundle 4 around more than 5 lateral shuttle of deflection plate, after flowing to the other end of guide shell 3, via the perforate on the shell side pass partition 15 17, flow into the upper space of shell side pass partition 15, continuation is around the upper space of deflection plate 15, continuation is washed away heat-exchanging tube bundle 4 around more than 5 lateral shuttle of deflection plate, rely on shell side pass partition 15 in guide shell 3, repeatedly to come and go vertically, fully absorb heating agent and become hot water by the heat that tube wall spreads out of, delivery port on guide shell 3 10 flows in the tank body 1 again, is flowed out by tank body delivery port 14 then.
Claims (5)
1, a kind of variable cross-section volumetric heat exchanger, it is made up of vertical or horizontal tank body and heat exchanger, wherein heat exchanger is by guide shell, heat-exchanging tube bundle, deflection plate, bobbin carriage constitutes, heat-exchanging tube bundle is many U type pipes, be set with deflection plate on it, they together are placed in the guide shell, the heat-exchanging tube bundle outer end is connected with tube sheet, the guide shell openend connects as one by flange and bobbin carriage, and with the tube sheet clamping in the middle of them, guide shell is positioned at tank body, which is provided with water inlet and delivery port, bobbin carriage is positioned at outside the tank body, which is provided with the outlet of heating agent import and heating agent, is provided with pass partition in it, tank body is provided with delivery port, the cooling section heat-exchanging tube bundle that it is characterized in that near the position of corresponding bobbin carriage heating agent outlet, the mouth of pipe of its each U type pipe form the single channel or the multichannel condensation flow circulation passage of cooling section integral body with single channel or multichannel head and the tail connection connection successively.
2, by the described variable cross-section volumetric heat exchanger of claim 1, it is characterized in that the single channel condensed water circulating channel structure that each U type pipe of cooling section heat-exchanging tube bundle is formed is, keep the import of a U type pipe in the cooling section heat-exchanging tube bundle, the outlet of this U type pipe links to each other with the import of another cooling section U type pipe, the rest may be inferred, keep the outlet of last U type pipe at last, form holistic single channel condensation flow circulation passage.
3, by the described variable cross-section volumetric heat exchanger of claim 1, the structure that it is characterized in that multichannel condensation flow circulation passage is, keep the import of the two or more U type of cooling section heat-exchanging tube bundle pipe, these two or more corresponding with other cooling section U type pipe import respectively linking to each other of U type pipe outlet, the rest may be inferred, keep the outlet of last two or more U type pipes at last, form two or more integral body multichannel condensation flow circulation passage independently separately.
4,, it is characterized in that the head and the tail of each U type pipe in the cooling section heat-exchanging tube bundle connect by elbow connection connection by claim 1 or 2 or 3 described variable cross-section volumetric heat exchangers.
5,, it is characterized in that between heat-exchanging tube bundle and guide shell, 1～2 level or vertical shell side pass partition being set by the described variable cross-section volumetric heat exchanger of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228570 CN2372651Y (en) | 1999-06-10 | 1999-06-10 | Changeable cross-section positive displacement heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228570 CN2372651Y (en) | 1999-06-10 | 1999-06-10 | Changeable cross-section positive displacement heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2372651Y true CN2372651Y (en) | 2000-04-05 |
Family
ID=34017934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99228570 Expired - Fee Related CN2372651Y (en) | 1999-06-10 | 1999-06-10 | Changeable cross-section positive displacement heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2372651Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697747A (en) * | 2013-12-23 | 2014-04-02 | 哈尔滨锅炉厂有限责任公司 | Device and method for strengthened heat transfer of U-shaped tube heat exchanger bend section |
| CN104450981A (en) * | 2014-10-23 | 2015-03-25 | 广西智通节能环保科技有限公司 | Cane juice heater |
-
1999
- 1999-06-10 CN CN 99228570 patent/CN2372651Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697747A (en) * | 2013-12-23 | 2014-04-02 | 哈尔滨锅炉厂有限责任公司 | Device and method for strengthened heat transfer of U-shaped tube heat exchanger bend section |
| CN103697747B (en) * | 2013-12-23 | 2016-02-10 | 哈尔滨锅炉厂有限责任公司 | U-shaped heat exchange of heat pipe bend loss strengthening and heat transferring device and heat transfer enhancing method |
| CN104450981A (en) * | 2014-10-23 | 2015-03-25 | 广西智通节能环保科技有限公司 | Cane juice heater |
| CN104450981B (en) * | 2014-10-23 | 2017-08-15 | 上海中道糖业股份有限公司 | A kind of sugarcane juice heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: SHUANGLIANG BOILER CO., LTD., JIANGSU PROV. TO: JIANGSU SHUANGLIANG TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Jiangsu Shuangliang Science &. Technology Co., Ltd. Patentee before: Shuangliang Boiler Co., Ltd. Jiangsu |
|
| 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 |