CN210832617U

CN210832617U - Involute tube type heat exchanger of cold trap machine

Info

Publication number: CN210832617U
Application number: CN201921330503.XU
Authority: CN
Inventors: 蔡正永; 赵桓; 胡锐; 武斌波; 黄美玲
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-06-23
Anticipated expiration: 2029-08-16

Abstract

A heat exchanger comprises a cylinder body, wherein a cavity is formed in the cylinder body, the cylinder body is provided with a cylinder body inlet and a cylinder body outlet, a plurality of winding branch pipes are accommodated in the cavity, each winding branch pipe is formed by winding a pipe, a plurality of circles of annular structures are formed by winding the pipes on the same plane approximately, and the plurality of winding branch pipes are arranged at intervals in the vertical direction; and a first opening and a second opening are respectively formed at two ends of each winding branch pipe, each first opening is communicated with the first main pipeline, and each second opening is communicated with the second main pipeline. Through the overlapping setting of a plurality of branch pipes that gradually burst at seams, can obviously increase heat transfer area, improve heat exchange efficiency.

Description

Involute tube type heat exchanger of cold trap machine

Technical Field

The utility model relates to a heat exchanger particularly, relates to a cold trap machine tubular heat exchanger that gradually bursts at seams.

Background

At present, the fin drying procedure of two devices (a condenser and an evaporator are also called as an indoor heat exchanger and an outdoor heat exchanger) in the air conditioning industry generally comprises the step of carrying out high-temperature degreasing on the heat exchanger through natural gas combustion to generate a large amount of heat (the temperature under normal pressure reaches 160-. The heat exchanger contains a large amount of copper tube oil and fin oil, a large amount of oil mist (mainly containing C12-C16 saturated alkanes) can be generated in the high-temperature drying process, and a large amount of waste gas (mainly containing triphenyl, styrene, total VOCs, non-methane total hydrocarbons, nitrogen dioxide, nitrogen oxides, carbon monoxide, smoke blackness, particulate matters and the like) can be generated in the high-temperature degreasing process. The problems of high energy consumption, waste gas pollution, poor working environment and the like in the traditional production mode of the two devices in the prior art are solved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a heat exchanger can increase heat transfer area, improves heat exchange efficiency. The utility model discloses a heat exchanger especially can be used as cold trap machine heat transfer. The utility model discloses a heat exchanger includes a plurality of heat exchange tubes, and a plurality of heat exchange tubes are arranged according to the predetermined distance in the cylinder body, and this scheme heat exchanger can the inside space characteristics of make full use of cylinder body, improves heat exchange efficiency. The involute pipeline is preferably adopted for heat exchange, and the heat transfer performance is higher. The involute branch pipes are arranged in a stacked mode, and are axially and relatively rotated for a certain angle to enable the involute branch pipes to be arranged in a staggered mode, and the vertical projection heat exchange area is large. The structure without fins among the light tubes is optimized, the wind resistance can be effectively reduced, the effective circulating air quantity is improved, and meanwhile, the structure of the light tubes without fins is beneficial to collecting the condensed oil.

Specifically, the method comprises the following steps:

a heat exchanger comprises a cylinder body, wherein a cavity is formed in the cylinder body, the cylinder body is provided with a cylinder body inlet and a cylinder body outlet, a plurality of winding branch pipes are accommodated in the cavity, each winding branch pipe is formed by winding a pipe, a multi-turn annular structure is formed by winding the pipe, and the plurality of winding branch pipes are arranged at preset intervals in the vertical direction; and a first opening and a second opening are respectively formed at two ends of each winding branch pipe, each first opening is communicated with the first main pipeline, and each second opening is communicated with the second main pipeline.

Preferably, the winding legs are involute legs.

Preferably, the tube is wound on the same plane to form a multi-turn annular structure.

Preferably, the winding branch pipe has a first straight section, one end of the first straight section forms the first opening, and the first straight section is a horizontal straight section; and/or the winding branch pipe has a second straight section, one end of the second straight section forms the second opening, and the second straight section is a vertical straight section.

Preferably, the plurality of winding branch pipes are arranged at a predetermined distance in the vertical direction in a manner that: and the winding branch pipes are arranged in a stacked mode, and when the winding branch pipes are arranged in the stacked mode, the adjacent winding branch pipes rotate relative to each other in sequence by a preset angle.

Preferably, the first main pipeline is positioned in an inner space enclosed by the plurality of winding branch pipes.

Preferably, the second main conduit is located below the plurality of winding branches and has an annular portion to which the second opening is connected.

Preferably, the heat exchanger is a cold trap heat exchanger.

Preferably, the system further comprises a refrigerant inlet pipe and a refrigerant outlet pipe, wherein the refrigerant inlet pipe is communicated with the first main pipeline, and the refrigerant outlet pipe is communicated with the second main pipeline.

Preferably, the cylinder inlet is located near the bottom of the cylinder and the cylinder outlet is located near the top of the cylinder.

Preferably, the inside of the cylinder body is further provided with a flow guide fixing plate for guiding gas entering from the inlet of the cylinder body, and the bottom of the cylinder body is provided with an oil storage cavity.

Preferably, the refrigerant system further comprises a refrigerant inlet pipe and a refrigerant outlet pipe, wherein the refrigerant inlet pipe is communicated with the first main pipeline, and the refrigerant outlet pipe is communicated with the second main pipeline.

Preferably, the heat exchange tube is a light pipe heat exchange tube, i.e., no fins are provided thereon.

Preferably, the heat exchange tube is made of specially-made red copper or stainless steel, so that corrosion caused by corrosive oil mist gas can be avoided. The light tubes are not provided with fins or fins, the wind resistance is small, the space distance between the light tubes can be small by special winding and combination modes, the light tubes are obliquely arranged, the heat exchange area is increased, and the heat exchange efficiency is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

FIG. 1: the utility model discloses a heat exchange tube's stereogram.

FIG. 2: the utility model discloses a front view of heat exchange tube.

FIG. 3: the utility model discloses a top view of heat exchange tube.

FIG. 4: the utility model discloses the front view of single branch pipe that gradually bursts at seams.

FIG. 5: the utility model discloses the single plan view that gradually bursts at seams the branch pipe.

FIG. 6: the utility model discloses a schematic diagram of heat exchanger.

Wherein: 1-heat exchanger, 10-cylinder, 11-cylinder inlet, 12-cylinder outlet, 13-top cover, 14-oil storage cavity, 15-diversion fixed plate, 16-refrigerant inlet pipe, 17-refrigerant outlet pipe;

2-heat exchange tube, 20-involute branch tube, 21-first main pipeline, 22-second main pipeline, 23-first opening and 24-second opening.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another structure. Thus, a first structure discussed below may be termed a second structure without departing from the teachings of the disclosed concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It is to be understood by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or processes shown in the drawings are not necessarily required to practice the present disclosure and are, therefore, not intended to limit the scope of the present disclosure.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings 1-6:

a heat exchanger 1 comprises a cylinder body 10, wherein a cavity is formed in the cylinder body 10, the cylinder body 10 is provided with a cylinder body inlet 11 and a cylinder body outlet 12, a plurality of winding branch pipes are accommodated in the cavity, each winding branch pipe is formed by winding a pipe, a plurality of circles of annular structures are formed by winding the pipes on the same plane approximately, and the plurality of winding branch pipes are arranged at preset intervals in the vertical direction; both ends of each winding branch pipe form a first opening 23 and a second opening 24, respectively, each first opening 23 is communicated with the first main pipeline 21, and each second opening 24 is communicated with the second main pipeline 22. The preset distance can be specifically set according to actual needs, and when the required heat exchange amount is large, the preset distance can be set to be smaller, and otherwise, the preset distance is set to be larger.

Preferably, the wrap around legs are involute legs 20.

Preferably, the winding branch has a first straight section, one end of which forms said first opening 23, the first straight section being a substantially horizontal straight section; and/or the winding branch has a second straight section, one end of which forms said second opening 24, the second straight section being substantially a vertical straight section.

Wherein the predetermined angle may be set to 360 degrees/number of the winding branch pipes, i.e. the winding branch pipes are evenly distributed in the circumferential direction.

Preferably, the first main pipe 21 is located in an inner space surrounded by the plurality of winding branches.

Preferably, a second main conduit 22 is located below the plurality of winding branches, which has an annular portion to which a second opening 24 is connected.

Preferably, the heat exchanger 1 is a cold trap heat exchanger 1.

Preferably, a refrigerant inlet pipe 16 and a refrigerant outlet pipe 17 are further included, wherein the refrigerant inlet pipe 16 is communicated with the first main pipeline 21, and the refrigerant outlet pipe 17 is communicated with the second main pipeline 22.

Preferably, the cylinder inlet 11 is located near the bottom of the cylinder 10 and the cylinder outlet 12 is located near the top of the cylinder 10.

Preferably, the cylinder 10 is further provided with a flow guide fixing plate 15 inside for guiding the gas entering from the cylinder inlet 11, and the bottom of the cylinder 10 is provided with an oil storage chamber 14.

The cylinder 10 may be a unitary structure or may be formed of individual parts, as shown in fig. 6, and the cylinder 10 includes a body, a cylinder top cover 13 and a bottom oil storage chamber 14.

Preferably, a refrigerant inlet pipe 16 and a refrigerant outlet pipe 17 are further included, the refrigerant inlet pipe 16 is communicated with the first main pipeline 21, and the refrigerant outlet pipe 17 is communicated with the second main pipeline 22.

The principles and processes of the present invention are described below with reference to fig. 1-6:

as shown in fig. 1-3, the utility model discloses the tubular heat exchange tube 2 that gradually bursts at seams is by a plurality of branch pipes 20 that gradually bursts at seams, first main line 21 and second main line 22 triplex are constituteed, branch pipe 20 structure that gradually bursts at seams is as shown in fig. 4, 5 is shown, branch pipe 20's both ends that gradually burst at seams are respectively in the first main line 21 and the second main line 22 pipe intercommunication of heat exchanger 1 subassembly, preferably welding intercommunication, for reaching best effect, the branch pipe 20 number of piles that gradually bursts at seams is as much as possible, the clearance is as little as possible between the different layers, the layer will rotate certain angle between the layer, the external diameter size adjustment according to heat exchange tube 2 allowwing gradually opens the coil number, in order to reach the effect of the plan of fig. 3, look down heat exchange tube 2 subassemblies promptly, all there.

As shown in fig. 6, the utility model discloses involute heat exchange tube 2 installs in inclosed cylinder body 10 (oil mist trap's entrapment chamber), inserts with refrigerating system, adopts the cryocondensation principle, as the core component who purifies oil mist waste gas. Under the action of the exhaust fan under the action of the purification system pipe network, air containing oil mist enters the cylinder body 10 from the cylinder body inlet 11, namely an air inlet, is guided into uniformly and densely distributed air flow by the guide fixing plate 15, then rises and is condensed by the heat exchange tube 2, harmful flying is condensed into liquid, the liquid is dripped into the oil storage cavity 14 at the bottom of the cylinder body 10 under the action of gravity, and purified gas is discharged through the system pipe network from the cylinder body outlet 12, namely an air outlet, passing through the top.

Before the heat exchanger 1 is installed, the cylinder body 10 and the flow guide fixing plate 15 are fixed according to given positions, and fixing holes and limiting structures for fixing the heat exchange tubes 2 are reserved in the flow guide fixing plate 15. During installation, the heat exchange tube 2 is vertically placed from the top of the condensation cavity cylinder body 10, the angle of the heat exchanger 1 is adjusted, the heat exchange tube is connected with a reserved fixing structure of the diversion fixing plate 15, and then an air outlet tube at the bottom of the heat exchange tube 2 is firmly fixed with a corresponding hole position of the diversion fixing plate 15. After the heat exchange tube 2 is installed, the refrigerant inlet tube 16 and the refrigerant outlet tube 17 pass through the reserved holes of the cylinder 10 and are respectively connected with the first main pipeline 21 and the second main pipeline 22 of the heat exchanger 1, wherein the connection can be welding, pipe joint assembly connection or other connection modes without leakage of refrigerant. Finally, the top cover 13 and the oil storage chamber 14 at the bottom of the cylinder 10 are installed.

The utility model discloses an 8mm fluorescent tube is bent through the specific machining die of bender coiling and is made, reference equation (cylindrical coordinates) gradually bursts at seams: r is 40+22 t, and theta is t 360. Wherein r is the base circle radius, theta is the spread angle, and t is the variable value from 0 to 1. The involute equations, as well as the involute legs 20 shape, are illustrative only and not limiting.

As shown in fig. 1, the winding parameters of the involute branch pipes 20 are not limited to the above fixed values, and are set mainly according to the heat exchange area, the heat exchange amount of the whole machine, and the capacity. The involute branch pipe 20 is provided with a first straight section and a second straight section, a first opening 23, namely an air inlet pipe orifice, is formed at the end part of the first straight section, a second opening 24, namely an air outlet pipe orifice, is formed at the end part of the first straight section, preferably, the first straight section is positioned in the same direction, and the second straight section is positioned in the same direction, so that the first main pipeline, namely a main air inlet pipe, and the second main pipeline, namely an air outlet pipe are conveniently welded;

preferably, every involute pipeline of coiling all is the same, only need open a mould alright accomplish the coiling processing. The plurality of involute branch pipes 20 are assembled in a stacked mode, optionally, the whole outer diameters of the partial involute branch pipes 20 are set to be different, so that the whole upper portion of the involute branch pipes is conical, the lower portion of the involute branch pipes is cylindrical, the involute branch pipes adapt to the space characteristics of the outer cylinder body 10, and the heat exchange efficiency is improved.

The heat exchanger 1 adopts a reverse heat exchange mode, the refrigerant in the heat exchanger 1 flows from top to bottom, the external industrial waste hot gas flows from bottom to top, and the heat exchange efficiency is improved through convective heat exchange;

alternatively, the involute legs 20 may be angled relative to each other for optimum performance.

Optionally, the utility model discloses well branch pipe 20 that gradually bursts at seams's pipe diameter is variable, changes the heat transfer effect.

Alternatively, the first main line 21 and the second main line 22, which may also be referred to as liquid distribution pipes, may be designed as a liquid distributor plus capillary structure, so that the distribution is more uniform.

Alternatively, the involute legs 20 may be wound with varying specific radii, varying the number of involute legs 20, varying the capacity of the heat exchanger 1.

Alternatively, the positions of the refrigerant inlet pipe 16 and the refrigerant outlet pipe 17 may be changed, and the specific positions are set according to the needs of those skilled in the art.

Has the advantages that:

the utility model discloses a heat exchanger 1 can show increase heat transfer area, improves heat exchange efficiency. The involute pipeline is adopted for heat exchange, and the heat transfer performance is higher. The vertical projection heat exchange area is large due to the fact that the pipelines are arranged in a stacked mode and are arranged in a staggered mode, and secondly due to the fact that the light tubes are of a structure without fins, wind resistance can be effectively reduced, the air quantity of effective circulation is improved, and the light tubes without fins are beneficial to collection of condensed oil. The utility model discloses when being applied to cold trap machine, can obviously improve oil capture efficiency.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A heat exchanger (1) comprises a cylinder body (10), wherein a cavity is formed inside the cylinder body (10), the cylinder body (10) is provided with a cylinder body inlet (11) and a cylinder body outlet (12), and the heat exchanger is characterized in that: a plurality of winding branch pipes are accommodated in the cavity, each winding branch pipe is formed by winding a pipe, a multi-turn annular structure is formed by winding the pipe, and the plurality of winding branch pipes are arranged at preset intervals in the vertical direction; a first opening (23) and a second opening (24) are respectively formed at two ends of each winding branch pipe, each first opening (23) is communicated with the first main pipeline (21), and each second opening (24) is communicated with the second main pipeline (22); the tube is wound on the same plane to form a multi-turn annular structure.

2. The heat exchanger (1) according to claim 1, characterized in that: the winding branch pipe is an involute branch pipe (20).

3. The heat exchanger (1) according to any one of claims 1, 2, the winding branch having a first straight section, one end of which forms said first opening (23), the first straight section being substantially a horizontal straight section; and/or the winding branch has a second straight section, one end of which forms said second opening (24), the second straight section being substantially a vertical straight section.

4. Heat exchanger (1) according to any one of claims 1, 2, characterized in that: the mode that a plurality of winding branch pipes set up at the interval of predetermined distance in the direction of following is: and the winding branch pipes are arranged in a stacked mode, and when the winding branch pipes are arranged in the stacked mode, the adjacent winding branch pipes rotate relative to each other in sequence by a preset angle.

5. Heat exchanger (1) according to any one of claims 1, 2, characterized in that: the first main pipeline (21) is positioned in an inner space enclosed by the winding branch pipes.

6. Heat exchanger (1) according to any one of claims 1, 2, characterized in that: a second main conduit (22) is located below the plurality of winding branches and has an annular portion to which a second opening (24) is connected.

7. Heat exchanger (1) according to any one of claims 1, 2, characterized in that: the heat exchanger (1) is a cold trap heat exchanger (1).

8. Heat exchanger (1) according to any one of claims 1, 2, characterized in that: the cylinder body inlet (11) is positioned at the position of the cylinder body (10) close to the bottom, and the cylinder body outlet (12) is positioned at the position of the cylinder body (10) close to the top.

9. Heat exchanger (1) according to any one of claims 1, 2, characterized in that: the inside of the cylinder body (10) is also provided with a flow guide fixing plate (15) for guiding the gas entering from the cylinder body inlet (11), and the bottom of the cylinder body (10) is provided with an oil storage cavity (14).

10. Heat exchanger (1) according to any one of claims 1, 2, characterized in that: the refrigerant inlet pipe (16) is communicated with the first main pipeline (21), and the refrigerant outlet pipe (17) is communicated with the second main pipeline (22).