CN204705242U - Energy-conservation heat exchangers for district heating - Google Patents
Energy-conservation heat exchangers for district heating Download PDFInfo
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- CN204705242U CN204705242U CN201520397234.4U CN201520397234U CN204705242U CN 204705242 U CN204705242 U CN 204705242U CN 201520397234 U CN201520397234 U CN 201520397234U CN 204705242 U CN204705242 U CN 204705242U
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Abstract
The utility model discloses energy-conservation heat exchangers for district heating, belong to heat exchanger, its structure comprises housing, front-end pipe box, rear end header and tube bank, the upper and lower of housing is respectively arranged with steam buffer involucrum and hydrophobic storage involucrum, vapor inlet connecting pipe is arranged on steam buffer involucrum top, hydrophobic discharge connection is arranged on the bottom of hydrophobic storage involucrum, and vapor inlet connecting pipe bottom is provided with impingement baffle; The centre of front-end pipe box is provided with pass partition, and tube bank comprises tube sheet, support plate, pull bar and heat exchanger tube, and multiple heat exchanger tube entirety is covered with whole tube sheet; Be provided with expansion joint between housing and rear end header, in expansion joint, be provided with steam baffle.The utility model has heat exchanger tube entirety and is covered with whole tube sheet, and avoid steam to contact with the direct of condensate water, same heat exchange area, condensing water temperature is low, saves the energy; Add effective stringing area of tube sheet; Reduce steam inlet flow velocity, avoid causing damage to equipment, reduce and run noise; The features such as heat-transfer effect is good.
Description
Technical field
The utility model relates to a kind of heat exchanger, especially a kind of energy-conservation heat exchangers for district heating.
Background technology
The existing municipal heating systems central heating initial station overwhelming majority is carbonated drink shell-and-tube heating network heater, traditional heat exchangers for district heating adopts half-wave expansion joint, during use, needing whole expansion joint to be cut off from centre and could use, entering the flow velocity of tube bank in order to reduce steam, large cylinder is added in the middle of needing, after steam enters large cylinder, surround heat-exchanging tube bundle and carry out heat exchange, effectively enter tube bank in order to steam can be made, avoid the heat exchange of tube bank center insufficient, steam channel need be set on tube sheet.
There is following shortcoming in existing scheme:
1., due to tube sheet arranging steam channel, effective stringing area of tube sheet is reduced, and device diameters increases;
2., because centre increases cylindrical shell, bracing ring need be added support plate is supported, material cost is raised;
3. steam inlet flow velocity is high, and exchange heat pipe has greater impact, often causes support place of the welding point of exchanger tubes and tubesheets, heat exchanger tube and support plate to damage;
4. steam inlet flow velocity is high, causes operation noise large;
5. because steam is that steam entirety surrounds tube bank, therefore steam directly contacts with bottom condensed water, is equivalent to steam-water mixing heating, condensate temperature is raised, causes energy waste, to ensure condensed water leaving water temperature, need increase heat exchange area, cause waste of material;
6. heat-transfer effect is poor, and occupation of land space is large.
Utility model content
Technical assignment of the present utility model provides a kind of energy-conservation heat exchangers for district heating for above-mentioned deficiency of the prior art, this energy-conservation heat exchangers for district heating has heat exchanger tube entirety and is covered with whole tube sheet, avoids steam to contact with the direct of condensate water, same heat exchange area, condensing water temperature is low, saves the energy; Without the need to arranging steam channel, add effective stringing area of tube sheet, heat exchange area is large, low cost of manufacture; Reduce steam inlet flow velocity, avoid causing damage to equipment, reduce and run noise; The feature that heat-transfer effect is good.
The utility model solves the technical scheme that its technical problem adopts: it comprises housing, front-end pipe box, rear end header and tube bank, front-end pipe box is arranged on the front portion of housing, rear end header is arranged on the rear portion of housing, tube bank is arranged in housing, the upper and lower of front-end pipe box is respectively arranged with healed water discharge connection and healed water entrance sleeve, described housing is cylindrical shape, the upper and lower of housing is respectively arranged with steam buffer involucrum and hydrophobic storage involucrum, described steam buffer involucrum and hydrophobic storage involucrum cross section are respectively arcuate structure, vapor inlet connecting pipe is arranged on steam buffer involucrum top, hydrophobic discharge connection is arranged on the bottom of hydrophobic storage involucrum, impingement baffle is provided with in the steam buffer space of vapor inlet connecting pipe bottom, the two ends, left and right of impingement baffle fix with steam buffer involucrum respectively, the centre of described front-end pipe box is provided with pass partition, and front-end pipe box inner chamber is divided into intake antrum and water chamber by pass partition, described tube bank comprises tube sheet, support plate, pull bar and heat exchanger tube, the front-end and back-end of described housing are respectively arranged with tube sheet, heat exchanger tube comprises multiple and is straight tube, multiple heat exchanger tube entirety is covered with whole tube sheet, and two ends are each passed through the tube sheet of housing forward end and rear end, be provided with multiple support plate between two tube sheets, heat exchanger tube is each passed through multiple support plate, and anterior tube sheet is connected by pull bar with between multiple support plate, be provided with expansion joint between described housing and rear end header, in expansion joint, be provided with the steam baffle matched with expansion joint inner chamber.
Described steam baffle comprises 6, and it is 3 right to be divided into, and often pair of steam baffle is symmetrical arranged along expansion joint vertical direction respectively.
Top and the bottom of each described support plate are respectively arranged with breach.
Left side and the hydrophobic storage involucrum lower part of described housing are not provided with level instrumentation nozzle, are connected with liquid level gauge between two level instrumentation nozzles.
The bottom of described housing is provided with saddle.
Described vapor inlet connecting pipe comprises two, is symmetricly set on front side and the rear side on steam buffer involucrum top, and each vapor inlet connecting pipe bottom respectively correspondence be provided with an impingement baffle.
Channel flange is respectively arranged with between the tube sheet of described front-end pipe box and housing front portion, between rear end header and the tube sheet at housing rear portion.
Described front-end pipe box, healed water discharge connection, healed water entrance sleeve and channel flange are welded as entirety, welding pass partition in front-end pipe box.
Described rear end header and channel flange are welded as entirety.
Compared to the prior art energy-conservation heat exchangers for district heating of the present utility model, has following outstanding beneficial effect:
1, heat exchanger tube entirety is covered with whole tube sheet, and avoid steam to contact with the direct of condensate water, same heat exchange area, condensing water temperature is low, saves the energy;
2, without steam backheat, heat transfer coefficient is high, same parameter, the little 10-20% of heat exchange area;
3, without the need to arranging steam channel, equivalent diameter, heat exchange area is large, compact conformation, low cost of manufacture;
4, increase steam buffer involucrum, increase steam inlet space, reduce steam flow rate, avoid the direct impact of steam heat exchanging tube bank, support place avoiding the welding point of exchanger tubes and tubesheets, heat exchanger tube and support plate damages;
5, first steam enter steam buffer space, reduces the flow velocity that steam enters tube bank, and operation noise is reduced;
6, increase hydrophobic storage involucrum, make hydrophobic direct control, do not need separately to establish drain trap, reduce investment outlay;
7, condensed water supercooling temperature can be realized export, save the energy;
8, monolithic devices expansion joint is set, solves thermal expansion problem, large temperature difference heat exchange can be realized;
9, Strength Calculation is ripe, ensures equipment security of operation;
10, front-end pipe box and rear end header are detachably, convenient maintenance;
11, save a large amount of inner support than traditional heat exchangers for district heating, save manufacturing cost.
Accompanying drawing explanation
Accompanying drawing 1 is the main TV structure schematic diagram of energy-conservation heat exchangers for district heating;
Accompanying drawing 2 is front sectional view of energy-conservation heat exchangers for district heating;
Accompanying drawing 3 is that the A shown in Fig. 2 is to zoomed-in view;
Accompanying drawing 4 is the B-B amplification views shown in Fig. 2;
Accompanying drawing 5 is the C-C amplification views shown in Fig. 2;
Accompanying drawing 6 is structural representations of support plate;
Accompanying drawing 7 is main TV structure schematic diagrames of each steam baffle shown in Fig. 5;
Description of reference numerals: 1, housing, 11, steam buffer involucrum, 111, steam buffer space, 12, hydrophobic storage involucrum, 13, vapor inlet connecting pipe, 14, hydrophobic discharge connection, 15, impingement baffle, 2, front-end pipe box, 21, healed water discharge connection, 22, healed water entrance sleeve, 23, pass partition, 24, intake antrum, 25, water chamber, 3, rear end header, 4, tube bank, 41, tube sheet, 42, support plate, 421, breach, 43, pull bar, 44, heat exchanger tube, 5, expansion joint, 51, steam baffle, 6, level instrumentation nozzle, 7, saddle, 8, channel flange.
Detailed description of the invention
With reference to Figure of description 1 to accompanying drawing 7, energy-conservation heat exchangers for district heating of the present utility model is described in detail below.
Energy-conservation heat exchangers for district heating of the present utility model, its structure comprises housing 1, front-end pipe box 2, rear end header 3 and tube bank 4, front-end pipe box 2 is arranged on the front portion of housing 1, rear end header 3 is arranged on the rear portion of housing 1, tube bank 4 is arranged in housing 1, the upper and lower of front-end pipe box 2 is respectively arranged with healed water discharge connection 21 and healed water entrance sleeve 22, described housing 1 is cylindrical shape, save material, the upper and lower of housing 1 is respectively arranged with steam buffer involucrum 11 and hydrophobic storage involucrum 12, described steam buffer involucrum 11 and hydrophobic storage involucrum 12 cross section are respectively arcuate structure, vapor inlet connecting pipe 13 is arranged on steam buffer involucrum 11 top, hydrophobic discharge connection 14 is arranged on the bottom of hydrophobic storage involucrum 12, impingement baffle 15 is provided with in the steam buffer space 111 of vapor inlet connecting pipe 13 bottom, the two ends, left and right of impingement baffle 15 fix with steam buffer involucrum 11 respectively, the centre of described front-end pipe box 2 is provided with pass partition 23, and front-end pipe box 2 inner chamber is divided into intake antrum 24 and water chamber 25 by pass partition 23, described tube bank 4 comprises tube sheet 41, support plate 42, pull bar 43 and heat exchanger tube 44, the front-end and back-end of described housing 1 are respectively arranged with tube sheet 41, heat exchanger tube 44 comprises multiple and is straight tube, multiple heat exchanger tube 44 entirety is covered with whole tube sheet 41, and two ends are each passed through the tube sheet 41 of housing 1 front-end and back-end, multiple support plate 42 is provided with between two tube sheets 41, support plate 42 and housing 1 liang of end in contact are as fulcrum, support heat exchanger tube 44, heat exchanger tube 44 is each passed through multiple support plate 42, and anterior tube sheet 41 is connected by pull bar 43 with between multiple support plate 42, be provided with expansion joint 5 between described housing 1 and rear end header 3, in expansion joint 5, be provided with the steam baffle 51 matched with expansion joint 5 inner chamber, prevent steam from directly contacting with condensed water.
Described steam baffle 51 comprises 6, and it is 3 right to be divided into, and often pair of steam baffle is symmetrical arranged along expansion joint vertical direction respectively.
Top and the bottom of each described support plate 42 are respectively arranged with breach 421.Add steam and hydrophobic negotiability.
Left side and hydrophobic storage involucrum 12 bottom of described housing 1 are respectively arranged with level instrumentation nozzle 6, and be connected with liquid level gauge between two level instrumentation nozzles, hydrophobic discharge connection can arrange electric control valve.Liquid level gauge is for showing the position of the condensed water in hydrophobic storage involucrum 12, when condensed water reaches a certain desired location, condensed water then reaches the chilling temperature of needs, when condensed water is higher than desired location, now, liquid level gauge is to electric control valve signal, by the hydrophobic outlet size of the hydrophobic discharge connection of motorized adjustment valve regulation, discharge condensed water, maintains hydrophobic liquid level, the condensation-water drain temperature needed for guarantee.
The bottom of described housing 1 is provided with saddle 7.For support housing 1.
Described vapor inlet connecting pipe 13 comprises two, is symmetricly set on front side and the rear side on steam buffer involucrum 11 top, and each vapor inlet connecting pipe 13 bottom respectively correspondence be provided with an impingement baffle 15.Steam is made to enter tube bank in housing 1 equably.
Between described front-end pipe box 2 and the tube sheet 41 of housing front portion, between rear end header 2 and the tube sheet 41 at housing rear portion, be respectively arranged with channel flange 8.Be convenient to repair demolition.
Described front-end pipe box 2, healed water discharge connection 21, healed water entrance sleeve 22 and channel flange 8 are welded as entirety, welding pass partition 23 in front-end pipe box 2.
Described rear end header 3 is welded as entirety with channel flange 8.
Healed water enters the intake antrum 24 of front-end pipe box 2 by healed water entrance sleeve 22, the heat exchanger tube 44 of pass partition 23 bottom is entered by the pass partition 23 in front-end pipe box 2, first with the condensed water heat exchange of shell side, the heat exchanger tube 44 on pass partition 23 top is again entered after entering rear end header 3 baffling again, heat exchange is carried out with the steam in housing, be heated to temperature required after, enter the water chamber 25 of front-end pipe box 2, flowed out by healed water discharge connection 21.Steam enters steam buffer involucrum 11 by vapor inlet connecting pipe 13, and first steam impact on impingement baffle 15, changes circulating direction, prevents steam from directly impacting tube bank 4, causes tube bank 4 to vibrate and heat exchanger tube damage.Steam buffer involucrum 11 is directly communicated with housing 1, and steam enters tube bank 4 from top to bottom, and expansion joint 5, built with steam baffle 51, prevents steam from directly contacting with condensed water.Because steam admission sectional area is large, therefore when entering tube bank 4, the flow velocity of steam is very low, and the equipment that reduces runs noise.Steam carries out exchange heat with the healed water in heat exchanger tube 44 from top to bottom after entering tube bank 4.Steam and condensed water contactless, condensed water realizes pure water heat exchange state, therefore good effect of heat exchange, same parameter 10%-20% less of common heat supply network heater area, regulating, can realize cold condensed water and exporting by controlling hydrophobic liquid level.Monolithic devices expansion joint 5 is set on the right side of housing 1, solves thermal expansion problem, large temperature difference heat exchange can be realized.
Cited above embodiment is only for understanding the utility model; it is not the restriction to the technical scheme described by the utility model; the those of ordinary skill of related fields; on the basis of technical scheme described in claim; can also make multiple change or distortion, all equivalent changes or distortion all should be encompassed within claims of the present utility model.The utility model does not describe part in detail, is the known technology of those skilled in the art of the present technique.
Claims (9)
1. energy-conservation heat exchangers for district heating, comprise housing, front-end pipe box, rear end header and tube bank, front-end pipe box is arranged on the front portion of housing, rear end header is arranged on the rear portion of housing, tube bank is arranged in housing, the upper and lower of front-end pipe box is respectively arranged with healed water discharge connection and healed water entrance sleeve, it is characterized in that: described housing is cylindrical shape, the upper and lower of housing is respectively arranged with steam buffer involucrum and hydrophobic storage involucrum, described steam buffer involucrum and hydrophobic storage involucrum cross section are respectively arcuate structure, vapor inlet connecting pipe is arranged on steam buffer involucrum top, hydrophobic discharge connection is arranged on the bottom of hydrophobic storage involucrum, impingement baffle is provided with in the steam buffer space of vapor inlet connecting pipe bottom, the two ends, left and right of impingement baffle fix with steam buffer involucrum respectively, the centre of described front-end pipe box is provided with pass partition, and front-end pipe box inner chamber is divided into intake antrum and water chamber by pass partition, described tube bank comprises tube sheet, support plate, pull bar and heat exchanger tube, the front-end and back-end of described housing are respectively arranged with tube sheet, heat exchanger tube comprises multiple and is straight tube, multiple heat exchanger tube entirety is covered with whole tube sheet, and two ends are each passed through the tube sheet of housing forward end and rear end, be provided with multiple support plate between two tube sheets, heat exchanger tube is each passed through multiple support plate, and anterior tube sheet is connected by pull bar with between multiple support plate, be provided with expansion joint between described housing and rear end header, in expansion joint, be provided with the steam baffle matched with expansion joint inner chamber.
2. energy-conservation heat exchangers for district heating according to claim 1, is characterized in that: described steam baffle comprises 6, and it is 3 right to be divided into, and often pair of steam baffle is symmetrical arranged along expansion joint vertical direction respectively.
3. energy-conservation heat exchangers for district heating according to claim 1, is characterized in that: top and the bottom of each described support plate are respectively arranged with breach.
4. energy-conservation heat exchangers for district heating according to claim 1, is characterized in that: left side and the hydrophobic storage involucrum lower part of described housing are not provided with level instrumentation nozzle, are connected with liquid level gauge between two level instrumentation nozzles.
5. energy-conservation heat exchangers for district heating according to claim 1, is characterized in that: the bottom of described housing is provided with saddle.
6. energy-conservation heat exchangers for district heating according to claim 1, it is characterized in that: described vapor inlet connecting pipe comprises two, be symmetricly set on front side and the rear side on steam buffer involucrum top, and each vapor inlet connecting pipe bottom respectively correspondence be provided with an impingement baffle.
7. energy-conservation heat exchangers for district heating according to claim 1, is characterized in that: be respectively arranged with channel flange between the tube sheet of described front-end pipe box and housing front portion, between rear end header and the tube sheet at housing rear portion.
8. energy-conservation heat exchangers for district heating according to claim 7, is characterized in that: described front-end pipe box, healed water discharge connection, healed water entrance sleeve and channel flange are welded as entirety, welding pass partition in front-end pipe box.
9. energy-conservation heat exchangers for district heating according to claim 7, is characterized in that: described rear end header and channel flange are welded as entirety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397234.4U CN204705242U (en) | 2015-06-10 | 2015-06-10 | Energy-conservation heat exchangers for district heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397234.4U CN204705242U (en) | 2015-06-10 | 2015-06-10 | Energy-conservation heat exchangers for district heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204705242U true CN204705242U (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520397234.4U Expired - Fee Related CN204705242U (en) | 2015-06-10 | 2015-06-10 | Energy-conservation heat exchangers for district heating |
Country Status (1)
| Country | Link |
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| CN (1) | CN204705242U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864747A (en) * | 2015-06-10 | 2015-08-26 | 山东国舜压力容器有限公司 | Energy-saving heating network heater |
| CN109186289A (en) * | 2018-08-29 | 2019-01-11 | 张家港市科华化工装备制造有限公司 | Fixed sheet heat exchanger |
| CN110567295A (en) * | 2019-09-06 | 2019-12-13 | 山东舜业压力容器有限公司 | Heating net heater |
-
2015
- 2015-06-10 CN CN201520397234.4U patent/CN204705242U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864747A (en) * | 2015-06-10 | 2015-08-26 | 山东国舜压力容器有限公司 | Energy-saving heating network heater |
| CN109186289A (en) * | 2018-08-29 | 2019-01-11 | 张家港市科华化工装备制造有限公司 | Fixed sheet heat exchanger |
| CN109186289B (en) * | 2018-08-29 | 2024-02-02 | 张家港市科华化工装备制造有限公司 | Fixed plate heat exchanger |
| CN110567295A (en) * | 2019-09-06 | 2019-12-13 | 山东舜业压力容器有限公司 | Heating net heater |
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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: 20151014 Termination date: 20170610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |