CN201032440Y - Snake structure separated heat pipe heat exchange system - Google Patents

Abstract

A serpentine heat pipe heat exchange system with separate evaporating section and condensing section, which belongs to the technical field of heat pipe heat exchange, and includes an evaporating section (11) and a condensing section (12), and the working medium of the heat pipe is at the output port of the evaporating section (11) The heat pipe working fluid ascending pipeline (1) is connected to the input port of the condensation section (12), and the heat pipe working fluid passes through the heat pipe working medium descending pipeline (10) and the evaporation section (11) at the output port of the condensation section (12). It is characterized in that the evaporating section (11) is composed of evaporating section shell (2), evaporating pipe (3), evaporating section elbow (13), evaporating section orifice plate (4) and evaporating section end cover (5), and the condensation section (12) is composed of the condensation section housing (6), the condensation pipe (7), the condensation section elbow (14), the condensation section orifice (8) and the condensation section end cover ( 9) Composition. It solves the problems of large volume and inconvenient maintenance existing in the existing separated heat pipe heat exchange system, and has the advantages of simple structure, convenient manufacture, installation and maintenance, small volume and low cost.

Description

Snake structure separated heat pipe heat exchange system

technical field

The utility model relates to a heat exchanging device, in particular to a system for cooling and heating a hot fluid and heating a cold fluid for heat exchange by adopting a separated heat pipe technology, in particular to a system in which both the evaporating section and the condensing section are serpentine structures Separate heat pipe heat exchange system.

Background technique

At present, the tube bundle structure of the separated heat pipe is that the heat transfer tubes are welded and connected into a tube bundle structure through the upper and lower headers. Pipeline and downpipe connection, as shown in Figure 1. The welded joints between the upper and lower headers and heat transfer tubes are fillet welds. The welding quality of the fillet welds is not easy to guarantee, and all the welds are located in the fluid passages, which are easy to be worn, corroded, and cause leakage. The fixation of the tube bundle is not easy to control. The diameter of the upper and lower headers is larger than that of the heat transfer tubes, which increases the weight of the equipment.

Contents of the invention

The purpose of this utility model is to provide a simple structure, small volume, easy maintenance, the evaporating section and the condensing section are snake A separate heat pipe heat exchange system with shaped structure.

The technical scheme of the utility model is:

A separate heat pipe heat exchange system in which both the evaporating section and the condensing section are serpentine structures, including an evaporating section 11 and a condensing section 12, and the heat pipe working fluid passes through the heat pipe working fluid ascending pipeline 1 at the output port of the evaporating section 11 and condenses The input port of the section 12 is connected, and the heat pipe working medium is connected to the input port of the evaporating section 11 through the heat pipe working fluid descending pipeline 10 at the output port of the condensing section 12, and the feature is that the evaporating section 11 is composed of the evaporating section shell , evaporating tube 3, evaporating section elbow 13, evaporating section orifice 4 and evaporating section end cover 5, each evaporating tube 3 is inclined upwards at a slight angle along the flow direction of the heat pipe working medium in the tube, the evaporating tube 3 There is a hot fluid channel between them, and its two ends are supported on the evaporation section orifice plate 4, the evaporation section orifice plate 4 is respectively installed on the two ends of the evaporation section shell 2, and the evaporation section end cover 5 is installed on the evaporation section shell 2 The two ends of the evaporation section are located outside the orifice 4 of the evaporation section. The elbow 13 of the evaporation section is located between the end cover 5 of the evaporation section and the orifice 4 of the evaporation section. Its two ends are respectively connected to the corresponding ends of the adjacent evaporation tubes 3. And all or part of the evaporating tubes 3 are connected end to end to form a serpentine structure and arranged in the evaporating section shell 2; The plate 8 and the end cover 9 of the condensing section are composed. Each condensing tube 7 is inclined downward at a slight angle along the flow direction of the heat pipe working medium in the tube. There is a cold fluid channel between the condensing tubes 7, and its two ends are supported on Condensing section orifice 8, condensing section orifice 8 is respectively installed on the two ends of condensing section shell 6, and condensing section end cover 9 is installed on the two ends of described condensing section shell 6 and is positioned at the outside of condensing section orifice 8, so The condensing section elbow 14 is located between the condensing section end cover 9 and the condensing section orifice 8, and its two ends are respectively connected to the corresponding ends of the adjacent condensing pipes 7 so that all or part of the condensing pipes 7 are connected end to end to form a snake. The shape structure is arranged in the shell 6 of the condensation section.

The connection between the end cover 5 of the evaporating section and the shell 2 of the evaporating section is a detachable connection structure or a welded connection structure depending on the physical properties of the hot fluid; The physical characteristic is a detachable connection structure or a welded connection structure.

The elbow 13 of the evaporating section and the evaporating pipe 3 are welded connection structures, and the welding point is located in the space between the orifice 4 of the evaporating section and the end cover 5 of the evaporating section; the elbow 14 of the condensing section and the condensing pipe 7 There is also a welding connection structure between them, and the welding point is located in the space between the orifice plate 8 of the condensation section and the end cover 9 of the condensation section.

The utility model has the following advantages:

1. The tube bundle of the separated heat pipe evaporating section and condensing section of the utility model adopts a serpentine tube structure, which saves the upper and lower header structures with large process volume and inconvenient installation and maintenance, which not only makes the overall structure simple, but also greatly reduces the manufacturing cost. cost.

2. When the hot and cold fluids are cooled or heated up, the shells of the evaporation section and the condensation section contain two orifice plates respectively, which play a good role in supporting and fixing the serpentine tube bundle. When the liquid evaporates on the cold fluid side, the cold fluid channel is the steam drum.

3. The pipes of the serpentine tube bundle are butt welded with 180° elbows. The welds are located outside the fluid passage. The quality of the butt welds is easier to inspect than the fillet welds, and the number of welds is more than that of the original structure. reduced and improved reliability.

4. When there are detachable end covers on both sides of the shell, the quality of the weld seam at the joint between the heat transfer tube and the elbow can be checked at any time.

5. When the hot and cold fluid is gas, the heat transfer surface such as fins can be expanded outside the heat transfer tube to further improve the heat transfer efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of a separated heat pipe heat exchange system in an existing structure.

Fig. 2 is a schematic structural view of the utility model.

In the figure: RLT means hot fluid, LLT means cold fluid, 101 is the existing heat pipe working fluid ascending pipeline, 102 is the upper header of the existing evaporating section tube bundle, 103 is the existing evaporating section tube bundle, 104 is the existing 105 is the lower header of the tube bundle of the evaporating section, 106 is the upper header of the tube bundle of the condensing section, 107 is the tube bundle of the existing condensing section, and 108 is the shell of the existing condensing section. 109 is the lower header of the tube bundle in the existing condensing section, and 110 is the descending pipeline of the existing heat pipe working medium.

Detailed ways

The following structural drawings and embodiments further illustrate the utility model.

as shown in picture 2.

A separate heat pipe heat exchange system in which both the evaporating section and the condensing section are serpentine structures, including an evaporating section 11 and a condensing section 12, and the heat pipe working fluid passes through the heat pipe working fluid ascending pipeline 1 at the output port of the evaporating section 11 and condenses The input port of the section 12 is connected, and the heat pipe working medium is connected to the input port of the evaporating section 11 through the heat pipe working fluid descending pipeline 10 at the output port of the condensing section 12, and the feature is that the evaporating section 11 is composed of the evaporating section shell , evaporating tube 3, evaporating section elbow 13, evaporating section orifice 4 and evaporating section end cover 5, each evaporating tube 3 has a slight angle along the flow direction of the heat pipe working fluid in the tube (the range can be 0.1-20 degrees (choose between) is inclined upward, and a hot fluid channel is provided between the evaporation tubes 3, and its two ends are supported on the orifice plate 4 of the evaporation section. The end cover 5 is installed on both ends of the evaporation section shell 2 and is located outside the evaporation section orifice 4, and the evaporation section elbow 13 is located between the evaporation section end cover 5 and the evaporation section orifice 4, and its two The ends are respectively connected with the corresponding ends of the adjacent evaporating tubes 3 and all or part of the evaporating tubes 3 are connected end-to-end to form a serpentine structure and arranged in the evaporating section shell 2; the condensing section 12 consists of the condensing section shell 6, the condensing section Tube 7, condensing section elbow 14, condensing section orifice 8 and condensing section end cover 9, each condensing tube 7 has a slight downward slope along the flow direction of the heat pipe working medium in the tube, and the gap between the condensing tubes 7 A thermal fluid channel is provided, and its two ends are supported on the orifice plate 8 of the condensing section, the orifice plate 8 of the condensing section is respectively installed on the two ends of the shell 6 of the condensing section, and the end cover 9 of the condensing section is installed on the side of the shell 6 of the condensing section The two ends are located outside the orifice 8 of the condensation section, and the elbow 14 of the condensation section is located between the end cover 9 of the condensation section and the orifice 8 of the condensation section, and its two ends are respectively connected to the corresponding ends of the adjacent condensation pipe 7 and All the condensation pipes 7 are connected end to end to form a serpentine structure and arranged in the casing 6 of the condensation section.

The evaporating section elbow 13 is connected end to end to connect all or part of the evaporating tubes 3 into one or more sections of serpentine (or "S" shape) structure, and the first evaporating tube of each small section in the entire evaporating section The inlet end of 3 is used as the working medium input end of the small section in the evaporating section 11, passes through the orifice plate 4 of the evaporating section and the end cover 5 of the evaporating section, and then connects with the working fluid descending pipeline 10 of the heat pipe, and the last evaporating tube 3 of each small section The outlet end is used as the output port of this small section in the evaporation section 11, and after passing through the orifice plate 4 of the evaporation section and the end cover 5 of the evaporation section, it is connected with the heat pipe working medium ascending pipeline 1, and the outlets and inlets of other evaporation tubes 3 in each small section are all controlled by the evaporation section. The section elbow 13 is connected; the same condensing section elbow 14 adopts the form of end-to-end connection to connect all or part of the condensing pipe 7 into one or more sections of serpentine (or "S" shape) structure, and each small section in the whole condensing section The inlet end of the first condensing pipe 7 passes through the orifice plate 8 of the condensing section and the end cover 9 of the condensing section as the working fluid input end of the subsection in the condensing section 12, and is connected with the heat pipe working fluid rising pipeline 1, and the last section of each subsection The outlet end of branch condensing pipe 7 is used as the output port of this small section in condensing section 12, passes through condensing section orifice 8 and condensing section end cover 9, and is connected with heat pipe working fluid descending pipeline 10, and the outlets of other condensing pipes 7 in each small section Both are connected with the inlet by the condensing section elbow 14.

During specific implementation, the physical properties of the thermal fluid between the evaporation section end cover 5 and the evaporation section shell 2 are detachable connection structures or welded structures; It is a detachable connection structure or a welded structure. The detachable connection structure is convenient for disassembly and maintenance.

The elbow 13 of the evaporating section and the evaporating pipe 3 are welded connection structures, and the welding point is located in the space between the orifice 4 of the evaporating section and the end cover 5 of the evaporating section; the elbow 14 of the condensing section and the condensing pipe 7 There is also a welding connection structure between them, and the welding point is located in the space between the orifice plate 8 of the condensation section and the end cover 9 of the condensation section. Anti-corrosion performance, but also convenient for inspection and maintenance.

The parts not involved in the utility model are all the same as the prior art, or can be realized by adopting the prior art.

Claims (3)

1. A separate heat pipe heat exchange system in which both the evaporating section and the condensing section are serpentine structures, comprising an evaporating section (11) and a condensing section (12), and the heat pipe working medium passes through the heat pipe at the output port of the evaporating section (11) The working fluid ascending pipeline (1) is connected to the input port of the condensing section (12), and the heat pipe working medium passes through the heat pipe working medium descending pipeline (10) at the output port of the condensing section (12) and the input of the evaporating section (11) It is characterized in that the evaporating section (11) consists of evaporating section shell (2), evaporating tube (3), evaporating section elbow (13), evaporating section orifice (4) and evaporating section end cover ( 5) Composition, each evaporating tube (3) is inclined upward at a slight angle along the flow direction of the heat pipe working medium in the tube, and a thermal fluid channel is provided between the evaporating tubes (3), and its two ends are supported on the evaporating section hole The plate (4), the orifice plate (4) of the evaporating section is respectively installed at both ends of the evaporating section shell (2), and the end cover (5) of the evaporating section is installed at both ends of the evaporating section shell (2) and is located at the The outer side of the section orifice (4), the evaporation section elbow (13) is located between the evaporation section end cover (5) and the evaporation section orifice (4), and its two ends are respectively connected to the adjacent evaporation tube (3 ) are connected to each other and all or part of the evaporation tubes (3) are connected end to end to form a serpentine structure and arranged in the evaporation section shell (2); the condensation section (12) is composed of the condensation section shell (6), Condensation pipe (7), condensation section elbow (14), condensation section orifice (8) and condensation section end cover (9), each condensation pipe (7) has a small The angle is inclined downward, and there is a hot fluid channel between the condensation pipes (7), and its two ends are supported on the orifice plate (8) of the condensation section, and the orifice plate (8) of the condensation section is respectively installed on the casing (6) of the condensation section The two ends of the condensing section end caps (9) are installed on both ends of the condensing section shell (6) and are located outside the orifice plate (8) of the condensing section, and the condensing section elbow (14) is located in the condensing section Between the end cover (9) and the orifice plate (8) of the condensing section, its two ends are respectively connected to the corresponding ends of the adjacent condensing pipes (7) and all or part of the condensing pipes (7) are connected end to end to form a serpentine structure Arranged in the condensation section housing (6). 2. According to claim 1, the evaporating section and the condensing section are separated heat pipe heat exchange systems with serpentine structures, characterized in that the evaporating section end cover (5) and the evaporating section shell (2) The physical property of the fluid is a detachable connection structure or a welded structure; the condensation section end cover (9) and the condensation section shell (6) can also be a detachable connection structure or a welding structure according to the physical characteristics of the cold fluid. 3. According to claim 1, the evaporating section and the condensing section are separated heat pipe heat exchange systems with a serpentine structure, characterized in that the elbow (13) of the evaporating section and the evaporating pipe (3) are welded The connection structure, and the welding point is located in the space between the evaporation section orifice (4) and the evaporation section end cover (5); the condensation section elbow (14) and the condensation pipe (7) are also welded connection structures, And the welding point is located in the space between the orifice plate (8) of the condensation section and the end cover (9) of the condensation section.

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