CN104154781A - Shell and tube heat exchanger - Google Patents
Shell and tube heat exchanger Download PDFInfo
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- CN104154781A CN104154781A CN201310644532.4A CN201310644532A CN104154781A CN 104154781 A CN104154781 A CN 104154781A CN 201310644532 A CN201310644532 A CN 201310644532A CN 104154781 A CN104154781 A CN 104154781A
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- connecting portion
- shell
- heat exchanger
- tube heat
- exchange tubes
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Abstract
The invention relates to a shell and tube heat exchanger, in particular to a shell and tube heat exchanger structurally easy to detach and clean. The shell and tube heat exchanger comprises a shell body, a heat exchange pipe set arranged in the shell body and an end socket, and is characterized in that a first connecting part is arranged on the end surface of a first side of the shell body, a first side of the heat exchange pipe set is connected with a short joint, and a second connecting part is arranged on the outer side surface of the end, connected with the heat exchange pipe set, of the short joint. The shell and tube heat exchanger further comprises a common flange plate, the common flange plate is provided with a third connecting part connected with the first connecting part and a fourth connecting part connected with the second connecting part. The shell and tube heat exchanger easy to detach and clean is simple in structure, easy to operate, good in cleaning effect and high in practicability.
Description
Technical field
The present invention relates to a kind of shell-and-tube heat exchanger, specifically, related to the shell-and-tube heat exchanger that is easy to unpick and wash in a kind of structure.
Background technology
Shell-and-tube heat exchanger is widely used in the industry such as chemical industry, oil, refrigeration, nuclear energy and power; due to global energy crisis; in order to reduce energy consumption, in industrial production, the demand of heat exchanger is also more and more, and the quality requirement of heat exchanger is also more and more higher.In recent decades, although compact heat exchanger (board-like, plate-fin, pressure welding plate type heat exchanger etc.), heat-pipe heat exchanger, direct-contact heat exchanger etc. have obtained development rapidly, but because shell-and-tube heat exchanger has reliability and the adaptability widely of height, it still occupies the dominant position of output and consumption, according to ASSOCIATE STATISTICS, in current commercial plant, the consumption of shell-and-tube heat exchanger still accounts for 70% left and right of whole heat exchanger consumptions.
In many techniques such as metallurgy, chemical industry, some working medium constituent complexity, much there is Acidity of Aikalinity or contain other dirt etc., along with the prolongation of life cycle, impurity in working medium is the long-pending tube wall that is attached to heat exchanger tube slowly, cause the heat transfer efficiency of heat exchanger tube to decline, directly affect the heat exchange efficiency of heat exchanger, bring great drawback to the stability of producing.
Shell-and-tube heat exchanger after especially being stopped up by crystal, takes the conventional mode such as steam soaking, backwash heat exchanger to clean after stopping up, and production practices prove, effect is not fine.The end socket of heat exchanger can only be disassembled, adopt the mode of physics cleaning, but take this kind of mode to clean, complicated operation, length consuming time, human and material resources investment is larger, and the industrial production of serialization is brought to great difficulty.Particularly, for high-pressure working medium heat exchange, as the situation of CO2 working medium, thus, conveniently clean and the simple shell-and-tube heat exchanger of cleaning method in the urgent need to providing a kind of.
Summary of the invention
The object of the invention is to overcome above-mentioned problem, providing one can meet high-pressure working medium uses, facilitate shell-and-tube heat exchanger unpick and wash and cleaning method easy, thereby make shell-and-tube heat exchanger of the present invention than the more convenient dismounting of conventional tube shell heat exchanger, make its on-the-spot applicability strong and can simplify the operating process after fouling of heat exchangers, solved the one or more problems that exist in prior art.
In order to realize appeal target, the invention provides a kind of shell-and-tube heat exchanger, comprise housing, be arranged on the set of heat exchange tubes in housing, end socket; Described housing the first side end face is provided with the first connecting portion; Described set of heat exchange tubes the first side is connected with pipe nipple, and one end lateral surface that this pipe nipple connects set of heat exchange tubes is provided with the second connecting portion; Also comprise common flange dish, this common flange dish has respectively the 3rd connecting portion being connected with the first connecting portion, and the 4th connecting portion being connected with the second connecting portion.
Described pipe nipple opposite side has the 5th connecting portion removably connecting with end socket, and the other end of described end socket has the 6th connecting portion being connected with working medium pipeline, when this connecting portion dismounting, can be that shell-and-tube heat exchanger separates with working medium pipeline.
Described housing one side end face is connected set of heat exchange tubes one end lateral surface with pipe nipple is same plane, and joint face corresponding to common flange dish is plane.
Between described housing one side end face and the corresponding joint face of common flange dish, there is the first gap; Described pipe nipple connects between one end lateral surface of set of heat exchange tubes and the corresponding joint face of common flange dish the second gap, and described housing one side medial surface and pipe nipple are connected between the circumference side, one end of set of heat exchange tubes third space.Described the first gap, the second gap and third space are provided with seal.
The first described connecting portion adopts flange to be connected with the 3rd connecting portion; Described the second connecting portion adopts flange to be connected with the 4th connecting portion.
The second side and first side of described shell-and-tube heat exchanger are symmetrical arranged.Tube sheet and the set of heat exchange tubes of described both sides pipe nipple are integrally welded, and the maximum outside diameter of pipe nipple is less than the internal diameter of housing.The tube side heat-exchange working medium of described shell-and-tube heat exchanger is CO2, and the shell side heat-exchange working medium of described shell-and-tube heat exchanger is cooling water.
Another object of the present invention is to provide a kind of method for dismounting of shell-and-tube heat exchanger, and described shell-and-tube heat exchanger comprises housing, is arranged on the set of heat exchange tubes in housing, end socket; Described housing the first side end face is provided with the first connecting portion; Described set of heat exchange tubes the first side is connected with pipe nipple, and one end lateral surface that this pipe nipple connects set of heat exchange tubes is provided with the second connecting portion; Also comprise common flange dish, this common flange dish has respectively the 3rd connecting portion being connected with the first connecting portion, and the 4th connecting portion being connected with the second connecting portion, and described pipe nipple opposite side has the 5th connecting portion removably connecting with end socket, the other end of described end socket has the 6th connecting portion being connected with working medium pipeline, when this connecting portion dismounting, can be that shell-and-tube heat exchanger separates with working medium pipeline; The concrete demounting procedure order of this shell-and-tube heat exchanger comprises:
The first step: the 5th connecting portion or the 6th connecting portion of dismounting both sides; Dismantle the common flange dish of both sides from shell-and-tube heat exchanger;
Second step: from a side-pulling set of heat exchange tubes, and pull out this set of heat exchange tubes outside housing.
The form that adopts common flange dish to be connected with pipe nipple and housing has increased the intensity connecting, and in the time cleaning, is easy to dismantle and assembling, restrains bottom the convenient tube bank extraction of pulley can be freely installed in the time of dismounting, is convenient to comprehensive cleaning.Due to the form of set of heat exchange tubes and pipe nipple employing welding, even if heat-exchange working medium adopts the unconventional working medium such as CO2, this structure also goes for high pressure range.
Brief description of the drawings
The shell-and-tube heat exchanger structure cutaway view of Fig. 1 an embodiment of the present invention;
Tube sheet pipe nipple overall schematic in Fig. 2 embodiment of the present invention;
Common flange dish connection diagram in Fig. 3 embodiment of the present invention.
Below in conjunction with accompanying drawing, the invention will be further described.
Specific embodiment one
As accompanying drawing 1 shell-and-tube heat exchanger structure cutaway view is depicted as a kind of shell-and-tube heat exchanger disclosed by the invention, it comprises end socket 1, housing 2, with the set of heat exchange tubes 14 of enclosure interior, for convenience, take right side in Fig. 1 as the first side, left side is the second side, the first side end face of its middle shell is provided with the first connecting portion 9, and set of heat exchange tubes 14 is connected on the tube sheet of pipe nipple 3, and the first end lateral surface of the connection set of heat exchange tubes 14 of this pipe nipple 3 is provided with the second connecting portion 10; Also comprise common flange dish 8, this common flange dish 8 has respectively the 3rd connecting portion 21 being connected with the first connecting portion 9, and the 4th connecting portion 22 being connected with the second connecting portion 10.
Just housing can be realized and being connected with pipe nipple by common flange dish 8 these parts like this, and due in the time there is cold and hot variations in temperature in housing, the temperature conditions of housing and pipe nipple is suitable, so adopt this annexation can reduce because thermal stress cause stressed, improve the life-span of common flange, particularly very important for high-pressure working medium.
Pipe nipple 3 also has the 5th connecting portion 11 removably connecting with end socket 1, and the 6th connecting portion 15 that described end socket 1 is connected with working medium pipeline in addition, when this connecting portion 15 is dismantled, can make shell-and-tube heat exchanger separate with working medium pipeline.In the time dismantling and clean shell-side water route, need to separate the connection of working medium pipeline, just can make pipe nipple 3 and set of heat exchange tubes 14 to move with respect to housing 2.In conjunction with Fig. 1 and Fig. 2, pipe nipple 3 is whole installation, comprise duct chamber, the circumferentially tube sheet 13 and the 5th connecting portion 11 being connected with end socket of contact of enclosure interior face of hollow, on tube sheet 13, be welded with set of heat exchange tubes 14, thereby with set of heat exchange tubes 14 connects into entirety, pipe nipple 3 is connected by the 5th connecting portion 11 with end socket 1, and is connected on working medium pipeline by end socket 1.
The first end lateral surface that is connected set of heat exchange tubes 14 in housing 2 first side end faces with pipe nipple 3 is same plane, and the joint face that common flange dish is corresponding is plane, connector (not shown) can be set so easily and fix the first connecting portion 9 and the 3rd connecting portion 22, in figure, the part of the common flange dish 8 corresponding with the first connecting portion 9 is the 3rd connecting portion 22, and second connecting portion 10 and the 4th connecting portion 23, in figure, the part of the common flange dish 8 corresponding with the second connecting portion 10 is the 4th connecting portion 23, can be with reference to shown in the partial enlarged drawing Fig. 3 at A place in figure 1.Between housing 1 first side end face and the corresponding joint face of common flange dish 8, there is the first gap 16; Pipe nipple 3 connects between the first end lateral surface of set of heat exchange tubes 14 and the corresponding joint face of common flange dish 8 the second gap 17, and housing the first side medial surface and pipe nipple 3 are connected between the first end circumference side of set of heat exchange tubes 14 third space 18.In the first gap 16, be provided with the first seal 19, in the second gap 17, be provided with the second seal 20, in third space 19, be provided with the 3rd seal 21.In the first gap, the second gap and third space are provided with seal, make like this cooling water of shell-side by after the 3rd seal 21, also will could flow out through the second seal 20 or the first seal 19, have improved the sealing effectiveness of cooling water side.
In the present embodiment, the first connecting portion, the second connecting portion, the 3rd connecting portion, the 4th connecting portion, the 5th connecting portion and the 6th connecting portion all adopt dismountable type of attachment, can consider to adopt flange, La Erka, the modes that removably connect such as special-shaped clip, adopt in the present embodiment flange to connect, improve the fastness of connection and the efficiency of dismounting and installation.
In another kind of embodiment, the second side and first side of shell-and-tube heat exchanger are symmetrical arranged, also in the second side of set of heat exchange tubes 14, symmetrically arranged pipe nipple 3 is also installed, set of heat exchange tubes 14 is welded to connect with pipe nipple 3, to improve sealing and the withstand voltage properties of working medium side, the pipe nipple of set of heat exchange tubes and both sides is just welded into one like this, becomes set of heat exchange tubes and pipe nipple assembly, guarantees the withstand voltage properties of working medium side.Can improve like this efficiency of production and processing, reduce number of parts, increase the attractive in appearance of shell-and-tube heat exchanger.
Simultaneously, the maximum outside diameter of pipe nipple 3 is less than the internal diameter of housing 2, like this in the time that the set of heat exchange tubes of shell-and-tube heat exchanger and pipe nipple assembly need to be moved with respect to housing, pipe nipple assembly can move in housing 2, thereby can make set of heat exchange tubes 14 expose housing completely, thereby be easy to clean, improve cleaning efficiency.
In the present embodiment, tube side heat-exchange working medium is CO2, the shell side heat-exchange working medium of described shell-and-tube heat exchanger is cooling water, owing to adopting CO2 working medium, the temperature of heat exchanger will be higher than the situation that adopts traditional working medium, so the set of heat exchange tubes outer wall of shell-side is easy to structure more, adopt the structure of the present embodiment, the fouling and the mud that make to be more easy to exchange heat pipe heat 14 outsides clean.
The present invention also discloses the method for dismounting of shell-and-tube heat exchanger, comprises housing according to the disclosed shell-and-tube heat exchanger of present specification, is arranged on the set of heat exchange tubes in housing, end socket; Described housing the first side end face is provided with the first connecting portion; Described set of heat exchange tubes the first side is connected with pipe nipple, and one end lateral surface that this pipe nipple connects set of heat exchange tubes is provided with the second connecting portion; Also comprise common flange dish, this common flange dish has respectively the 3rd connecting portion being connected with the first connecting portion, and the 4th connecting portion being connected with the second connecting portion, described pipe nipple opposite side has the 5th connecting portion removably connecting with end socket, the other end of described end socket has the 6th connecting portion being connected with working medium pipeline, when the dismounting of this connecting portion, can be that shell-and-tube heat exchanger separates with working medium pipeline, and the second side of shell-and-tube heat exchanger and the first side be symmetrical arranged; The concrete demounting procedure order of this shell-and-tube heat exchanger comprises:
The first step: the 5th connecting portion or the 6th connecting portion of dismounting both sides; Dismantle the common flange dish of both sides from shell-and-tube heat exchanger;
Second step: from a side-pulling set of heat exchange tubes, and pull out this set of heat exchange tubes outside housing.
Before dismounting the 5th connecting portion or the 6th connecting portion, need working medium emptying or that find time in tube side, when after dismounting the 6th connecting portion, enter tube side working medium is polluted in order to reduce other impurity, can install blind plate or similar measure (as the valve of sealing is set) additional at the 6th connecting portion of both sides, and then pulley is installed in set of heat exchange tubes bottom, conveniently set of heat exchange tubes is pulled out, facilitate its cleaning.In order to facilitate the fixing of pulley, and reduce to exchange the impact of heat pipe heat structure, set of heat exchange tubes is provided with the screens that is suitable for fixed block, and this screens comprises depression location division, and described depression location division is at the stressed structural strengthening of set of heat exchange tubes axial direction.
When in tube side, pipe nipple or end socket through working medium carry and be pooled in set of heat exchange tubes cold oil need to change time, can dismantle the 5th connecting portion, can open like this connection between pipe nipple and end socket, its inside is operated.And then set of heat exchange tubes bottom installation pulley, conveniently set of heat exchange tubes is pulled out, facilitate its cleaning.
Above content is the further description novel done to the present invention in conjunction with concrete preferred embodiment, can not assert that the novel concrete enforcement of the present invention is confined to above-mentioned these explanations.For the novel person of an ordinary skill in the technical field of the present invention, do not departing under the prerequisite of the novel design of the present invention, can also make some simple deduction or replace, all should be considered as belonging to the novel protection domain of the present invention.
Claims (10)
1. a shell-and-tube heat exchanger, comprises housing, is arranged on the set of heat exchange tubes in housing, end socket; It is characterized in that: described housing the first side end face is provided with the first connecting portion; Described set of heat exchange tubes the first side is fixedly connected with pipe nipple, and the lateral surface that this pipe nipple connects set of heat exchange tubes one end is provided with the second connecting portion; Also comprise common flange dish, this common flange dish has respectively the 3rd connecting portion being connected with the first connecting portion, and the 4th connecting portion being connected with the second connecting portion.
2. according to the shell-and-tube heat exchanger of claim 1, it is characterized in that: described pipe nipple opposite side has the 5th connecting portion removably connecting with end socket, the other end of described end socket has the 6th connecting portion being connected with working medium pipeline, when this connecting portion dismounting, can be that shell-and-tube heat exchanger separates with working medium pipeline.
3. according to the shell-and-tube heat exchanger of claim 1, it is characterized in that: described housing one side end face is connected set of heat exchange tubes one end lateral surface with pipe nipple is same plane, and joint face corresponding to common flange dish is plane.
4. according to the shell-and-tube heat exchanger of claim 1, it is characterized in that: between described housing one side end face and the corresponding joint face of common flange dish, have the first gap; Described pipe nipple connects between one end lateral surface of set of heat exchange tubes and the corresponding joint face of common flange dish the second gap, and described housing one side medial surface and pipe nipple are connected between the circumference side, one end of set of heat exchange tubes third space.
5. according to the shell-and-tube heat exchanger of claim 5, it is characterized in that: described the first gap, the second gap and third space are provided with seal.
6. according to the shell-and-tube heat exchanger of claim 1, it is characterized in that: the first described connecting portion adopts flange to be connected with the 3rd connecting portion; Described the second connecting portion adopts flange to be connected with the 4th connecting portion.
7. according to shell-and-tube heat exchanger in claim 1 to 6, it is characterized in that: the second side and first side of described shell-and-tube heat exchanger are symmetrical arranged.
8. according to the shell-and-tube heat exchanger of claim 7, it is characterized in that: tube sheet and the set of heat exchange tubes of described both sides pipe nipple are integrally welded, and the maximum outside diameter of pipe nipple is less than the internal diameter of housing.
9. according to the shell-and-tube heat exchanger of claim 7, it is characterized in that: the tube side heat-exchange working medium of described shell-and-tube heat exchanger is CO2, the shell side heat-exchange working medium of described shell-and-tube heat exchanger is cooling water.
10. a method for dismounting for shell-and-tube heat exchanger, described shell-and-tube heat exchanger comprises housing, is arranged on the set of heat exchange tubes in housing, end socket; Described housing the first side end face is provided with the first connecting portion; Described set of heat exchange tubes the first side is fixedly connected with pipe nipple, and one end lateral surface that this pipe nipple connects set of heat exchange tubes is provided with the second connecting portion; Also comprise common flange dish, this common flange dish has respectively the 3rd connecting portion being connected with the first connecting portion, and the 4th connecting portion being connected with the second connecting portion, described pipe nipple opposite side has the 5th connecting portion removably connecting with end socket, the other end of described end socket has the 6th connecting portion being connected with working medium pipeline, when the dismounting of this connecting portion, can make shell-and-tube heat exchanger separate with working medium pipeline, and the second side of shell-and-tube heat exchanger and the first side are symmetrical arranged; The concrete demounting procedure order of this shell-and-tube heat exchanger comprises::
The first step: the 5th connecting portion or the 6th connecting portion of dismounting both sides; Dismantle the common flange dish of both sides from shell-and-tube heat exchanger;
Second step: from a side-pulling set of heat exchange tubes, and pull out this set of heat exchange tubes outside housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644532.4A CN104154781A (en) | 2013-12-05 | 2013-12-05 | Shell and tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644532.4A CN104154781A (en) | 2013-12-05 | 2013-12-05 | Shell and tube heat exchanger |
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| CN104154781A true CN104154781A (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310644532.4A Pending CN104154781A (en) | 2013-12-05 | 2013-12-05 | Shell and tube heat exchanger |
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| CN (1) | CN104154781A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879959A (en) * | 2015-06-24 | 2015-09-02 | 台州龙江化工机械科技有限公司 | Dry-type evaporator |
| CN106196759A (en) * | 2016-08-31 | 2016-12-07 | 广州万宝集团有限公司 | A kind of negative-pressure adsorption-type refrigeration system condenser |
| CN110455116A (en) * | 2019-09-10 | 2019-11-15 | 德清金烨电力科技有限公司 | A kind of bobbin carriage cleaning equipment conducive to installation space optimization |
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| CN203148297U (en) * | 2012-12-27 | 2013-08-21 | 湖北迪峰换热器有限公司 | _High-pressure-resistant tubular heat exchanger movable end component conveinet to assemble, disassemble and maintain |
| CN203672194U (en) * | 2013-12-05 | 2014-06-25 | 北京大学工学院包头研究院 | Tube and shell type heat exchanger |
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| US3610328A (en) * | 1969-09-25 | 1971-10-05 | Sun Oil Co | Prevention of crevice coking in heat exchangers |
| US3768550A (en) * | 1970-06-02 | 1973-10-30 | Ici Ltd | Heat exchanger |
| CN2379768Y (en) * | 1998-10-12 | 2000-05-24 | 李铁 | Steel tube shell type cool exchanging equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879959A (en) * | 2015-06-24 | 2015-09-02 | 台州龙江化工机械科技有限公司 | Dry-type evaporator |
| CN104879959B (en) * | 2015-06-24 | 2018-01-30 | 台州龙江化工机械科技有限公司 | A kind of dry evaporator |
| CN106196759A (en) * | 2016-08-31 | 2016-12-07 | 广州万宝集团有限公司 | A kind of negative-pressure adsorption-type refrigeration system condenser |
| CN106196759B (en) * | 2016-08-31 | 2019-09-13 | 广州万宝集团有限公司 | A kind of negative-pressure adsorption-type refrigeration system condenser |
| CN110455116A (en) * | 2019-09-10 | 2019-11-15 | 德清金烨电力科技有限公司 | A kind of bobbin carriage cleaning equipment conducive to installation space optimization |
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Address after: Peking University Science Park 014010 the Inner Mongolia Autonomous Region Jiuyuan District of Baotou city planning new equipment Park District 2 Building 2 layer Applicant after: Packet header innovation research institute of Peking University Address before: 014010 room B, block, management committee, equipment manufacturing park, Qingshan District, the Inner Mongolia Autonomous Region, China Applicant before: BAOTOU RESEARCH INSTITUTE, COLLEGE OF ENGINEERING, PKU |
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Application publication date: 20141119 |
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