Coil pipe structure of evaporation pipe for refrigeration equipment

Abstract

The utility model discloses a coil pipe structure of an evaporating pipe for refrigeration equipment, which relates to the technical field of evaporators and comprises a heat exchange pipe bundle, the heat exchange pipe bundle consists of a plurality of sections of spiral coil pipes, the spiral coil pipes are sequentially distributed between two adjacent baffle plates, and a plurality of mounting holes for mounting the spiral coil pipes are formed in the baffle plates; the whole spiral coil pipe is of a spiral structure, and the spiral coil pipe is used for increasing the heat exchange contact area of tube pass fluid and shell pass fluid in the spiral coil pipe. The heat exchange tube bundle formed by horizontally and sequentially splicing the spiral coil tubes is arranged, compared with a traditional tube bundle of a linear tubular structure, the stroke length of the heat exchange tube bundle located in the evaporator is longer, then the heat exchange contact area of tube pass fluid and shell pass fluid is increased, the heat exchange effect is further improved, and the heat exchange efficiency is improved. And the heat exchange efficiency is also improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to evaporator technical field, concretely is a coil structure of evaporating pipe for refrigeration equipment. BACKGROUND

[0002] Evaporator is a heat exchange equipment in refrigeration system, is the heat exchanger of heat absorption of refrigerant at low temperature, and it is a very important component in the four big pieces of refrigeration, and the working principle is that the low temperature condensation "liquid" passes through evaporator and exchanges heat with the air or other heat medium, and the heat is transferred by "gasification" heat absorption, so that the effect of refrigeration is achieved.

[0003] The tube shell type evaporator is one of the commonly used evaporators of the refrigeration equipment, also called as the tube shell type heat exchanger, is a wall surface heat transfer surface of the tube bundle enclosed in the shell as the partition wall type heat exchanger, and the tube shell type evaporator is composed of shell, heat transfer tube bundle, tube plate, baffle (baffle) and tube box, etc., the shell is mostly cylindrical, internally equipped with the tube bundle, the tube bundle is fixed on the tube plate at both ends, and the cold and hot two fluids for heat exchange flow in the tube, one is called as the tube flow fluid; the other flows outside the tube and is called as the shell flow fluid.

[0004] The tube bundle of the existing tube shell type evaporator is mostly linear tubular structure, which causes the tube flow fluid to stay in the evaporator for a very short time, and cannot be in full contact with the heat medium, based on this, in order to improve the heat exchange contact area without changing the overall length of the tube shell type evaporator, the coil structure of evaporating pipe for refrigeration equipment is provided. UTILITY MODEL CONTENTS

[0005] The utility model discloses a coil structure of evaporating pipe for refrigeration equipment.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a coil structure of evaporating pipe for refrigeration equipment, comprising heat exchange tube bundle, the heat exchange tube bundle is composed of several spiral coils, and the several spiral coils are sequentially distributed in the middle of adjacent two baffles, a plurality of mounting holes for the installation of spiral coils are formed in the baffle;

[0007] The spiral coil is in spiral structure as a whole, which is used for increasing the heat exchange contact area of the tube flow fluid and the shell flow fluid in the spiral coil.

[0008] As a further scheme of the utility model: the both ends of the spiral coil are respectively fixed with butt joint straight pipes and sleeve joint straight pipes, the outer side of the end of the butt joint straight pipe is formed with an external thread groove, and the inside of the sleeve joint straight pipe is formed with an internal thread groove matched with the external thread groove;

[0009] The horizontal adjacent two spiral coils are connected and fixed through the threaded connection of the sleeve joint straight pipe and the butt joint straight pipe.

[0010] As a further scheme of the utility model: the outer diameter of the butt joint straight pipe matches the inner diameter of the mounting hole, and the length of the butt joint straight pipe is greater than the thickness of the baffle.

[0011] As a further scheme of the utility model: the outer sides of the butt joint straight pipe and the sleeve joint straight pipe are respectively fixed with first polygonal blocks and second polygonal blocks, and the end face of the second polygonal block is flush with the end face of the sleeve joint straight pipe, and the connection and fixation of the spiral coil and the baffle are realized by tightly adhering the first polygonal block and the second polygonal block to the two ends of the baffle.

[0012] As a further scheme of the utility model: the center line of the butt joint straight pipe and the center line of the sleeve joint straight pipe coincide with each other.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] By arranging the heat exchange tube bundle composed of a plurality of spiral coils which are horizontally connected in sequence, compared with the conventional linear tubular structure tube bundle, the travel length of the heat exchange tube bundle in the evaporator is longer, and then the heat exchange contact area of the tube side fluid and the shell side fluid is improved, not only the heat exchange effect is further improved, but also the heat exchange efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the utility model;

[0016] Fig. 2 It is a connection state schematic view of the heat exchange tube bundle and the baffle of the utility model;

[0017] Fig. 3 It is a split schematic view of the heat exchange tube bundle and the baffle of the utility model.

[0018] In the drawing: 1, heat exchange tube bundle; 101, spiral coil; 102, butt joint straight pipe; 103, external thread groove; 104, first polygonal block; 105, sleeve joint straight pipe; 106, second polygonal block; 2, baffle; 3, mounting hole. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Please refer to Figs. 1-3The utility model discloses a kind of coil structures of evaporating pipe for refrigeration equipment, including heat exchange tube bundle 1, heat exchange tube bundle 1 is composed of several spiral coils 101, several spiral coils 101 are sequentially distributed in the middle of adjacent two baffles 2, a plurality of mounting holes 3 for spiral coil 101 installation are set on baffle 2;

[0021] Spiral coil 101 is in whole spiral structure, for increasing the heat exchange contact area of shell side fluid in spiral coil 101 inside pipe pass fluid;

[0022] The both ends of spiral coil 101 are respectively fixed with butt joint straight pipe 102, sleeve joint straight pipe 105, and the outside of the end of butt joint straight pipe 102 is formed with external thread groove 103, and the inside of sleeve joint straight pipe 105 is formed with internal thread groove matched with external thread groove 103.

[0023] Horizontal adjacent two spiral coils 101 are connected and fixed by thread connection of sleeve joint straight pipe 105 and butt joint straight pipe 102.

[0024] In the embodiment: when using, the shell side fluid of this evaporating pipe's coil structure flows along the "S" channel trajectory formed by multiple baffles 2, and the pipe pass fluid flows along the trajectory of heat exchange tube bundle 1, in this process, the pipe pass fluid exchanges heat with shell side fluid through the tube wall of heat exchange tube bundle 1, and the operating principle is same with the principle of existing tube shell type evaporator, which will not be described in detail here.

[0025] Heat exchange tube bundle 1 is horizontally spliced by several spiral coils 101, compared with traditional linear tubular structure tube bundle, the stroke length of heat exchange tube bundle 1 in evaporator is longer, and then the heat exchange contact area of pipe pass fluid and shell side fluid is improved, not only further improve the heat exchange effect, but also improve the heat exchange efficiency.

[0026] In addition, through the splicing structure of spiral coil 101, not only the convenient installation of heat exchange tube bundle 1 and baffle is realized, but also heat exchange tube bundle 1 of different lengths can be combined according to equipment needs during production, and production and assembly are more flexible.

[0027] Please focus on Figs. 1-3 The outer diameter of butt joint straight pipe 102 is matched with the inner diameter of mounting hole 3, and the length of butt joint straight pipe 102 is greater than the thickness of baffle 2.

[0028] The outside of butt joint straight pipe 102 and sleeve joint straight pipe 105 is respectively fixed with first polygon block 104 and second polygon block 106, and the end surface of second polygon block 106 is flush with the end surface of sleeve joint straight pipe 105, the connection and fixation of spiral coil 101 and baffle 2 are realized by tightly adhering first polygon block 104 and second polygon block 106 to the both ends of baffle 2.

[0029] The center line of the butt joint straight pipe 102 coincides with the center line of the sleeve joint straight pipe 105.

[0030] In the embodiment: when installing the spiral coil pipe 101 and the baffle 2, the butt joint straight pipe 102 on one spiral coil pipe 101 is inserted into the corresponding mounting hole 3, then the sleeve joint straight pipe 105 on the other spiral coil pipe 101 is sleeved with the butt joint straight pipe 102 and screwed, the whole operation is simple and convenient;

[0031] The structure that the center line of the butt joint straight pipe 102 coincides with the center line of the sleeve joint straight pipe 105 can ensure that the butt joint straight pipe 102 on the installed spiral coil pipe 101 and the mounting hole 3 on the rear end baffle 2 are kept in the aligned state;

[0032] It should be noted that: the spiral coil pipe 101 at the front end is fixed with the butt joint straight pipe 102 at both ends, the spiral coil pipe 101 at the front end is butt jointed with the front end tube plate through the butt joint straight pipe 102, and is fixed with the front end tube plate by screwing the nut with the butt joint straight pipe 102, at the same time, the spiral coil pipe 101 at the rear end is butt jointed with the rear end tube plate through the butt joint straight pipe 102, and is fixed with the rear end tube plate by screwing the nut with the butt joint straight pipe 102. The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A coil structure of an evaporating pipe for a refrigeration apparatus, comprising a heat exchange pipe bundle (1), characterized in that, The heat exchange tube bundle (1) is composed of several spiral coils (101), and the spiral coils (101) are sequentially arranged between adjacent two baffle plates (2); the baffle plate (2) is provided with a plurality of mounting holes (3) for mounting the spiral coils (101). The spiral coil (101) is in a spiral structure as a whole, so as to increase the heat exchange contact area between the tube-side fluid and the shell-side fluid in the spiral coil (101).

2. A coil structure for an evaporating tube of a refrigerating apparatus according to claim 1, wherein The two ends of the spiral coil (101) are respectively fixed with a butt joint straight pipe (102) and a sleeve joint straight pipe (105); the outer side of the end of the butt joint straight pipe (102) is formed with an external thread groove (103); and the inside of the sleeve joint straight pipe (105) is formed with an internal thread groove matched with the external thread groove (103). The horizontally adjacent two spiral coils (101) are connected and fixed through the thread connection of the sleeve joint straight pipe (105) and the butt joint straight pipe (102).

3. A coil structure for an evaporating tube of a refrigerating apparatus according to claim 2, wherein The outer diameter of the butt joint straight pipe (102) is matched with the inner diameter of the mounting hole (3), and the length of the butt joint straight pipe (102) is greater than the thickness of the baffle plate (2).

4. A coil structure of an evaporating tube for a refrigerating apparatus according to claim 2, wherein The outer side of the butt joint straight pipe (102) and the sleeve joint straight pipe (105) is respectively fixed with a first polygonal block (104) and a second polygonal block (106), and the end surface of the second polygonal block (106) is flush with the end surface of the sleeve joint straight pipe (105); the first polygonal block (104) and the second polygonal block (106) are tightly attached to the two ends of the baffle plate (2), so as to realize the connection and fixation of the spiral coil (101) and the baffle plate (2).

5. A coil structure for an evaporating tube of a refrigerating apparatus according to claim 2, wherein The center line of the butt joint straight pipe (102) is coincided with the center line of the sleeve joint straight pipe (105).

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