Evaporator with uniform heat transfer

Abstract

The utility model belongs to the technical field of evaporators, and particularly relates to a uniform heat transfer evaporator which comprises an evaporator body, the evaporator body comprises a pipe body, a first end cover and a second end cover, and the first end cover and the second end cover are arranged at the two ends of the pipe body. An inlet pipe and an outlet pipe are arranged at the bottom of the first end cover, the inlet pipe is located in the outlet pipe, and the inlet pipe and the outlet pipe are each of an annular structure. The first end cover is provided with a plurality of first evaporation pipes and second evaporation pipes which are distributed in a staggered and circular array mode, and the first evaporation pipes and the second evaporation pipes are each of a U-shaped structure. The lower ends of the opposite sides of the first evaporation pipes and the second evaporation pipes penetrate through the first end cover and are communicated with the inlet pipe, and the lower ends of the opposite sides of the first evaporation pipes and the second evaporation pipes penetrate through the first end cover and are communicated with the outlet pipe; and a liquid inlet pipe and a liquid outlet pipe are respectively arranged on the inlet pipe and the outlet pipe. The heating device is heated uniformly, and water drops condensed on the surface can be prevented from blocking direct contact between hot air and a pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of evaporators, in particular to an evaporator with uniform heat transfer. Background Art

[0002] The evaporator is a device that converts liquid substances into gaseous substances. There are many types of evaporators, including the evaporator of the refrigeration system. The evaporator is a very important component among the four major components of refrigeration. The low-temperature condensed liquid exchanges heat with the outside air through the evaporator, vaporizes and absorbs heat to achieve the purpose of refrigeration.

[0003] The coil group inside the existing evaporator is set as a single evaporation tube, and the evaporator main structure is formed by bending in a U-shaped circulation arrangement. The evaporator is cooled by a single refrigeration system. Since the single refrigeration system is U-shaped, when it is used, the gap between the copper tube and the tube body is unevenly distributed, and is concentrated in the middle of the tube body, resulting in uneven distribution of the heat transfer area of ​​the evaporator; and when the condensed water condenses on the surface of the pipeline, it will block the direct contact between the hot air and the pipeline, thereby affecting the heat exchange efficiency and reducing the cooling quality. Summary of the invention

[0004] The utility model aims to provide an evaporator with uniform heat transfer, which is evenly heated and can avoid water drops condensed on the surface from blocking direct contact between hot air and pipelines.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an evaporator with uniform heat transfer, comprising an evaporator body, the evaporator body comprising a tube body, a first end cap and a second end cap arranged at both ends of the tube body; an inlet pipe and an outlet pipe are arranged at the bottom of the first end cap, the inlet pipe is located in the outlet pipe, and the inlet pipe and the outlet pipe are both annular structures; a plurality of first evaporation tubes and second evaporation tubes are arranged on the first end cap and distributed in a staggered and circular array, and the first evaporation tubes and the second evaporation tubes are both U-shaped structures; the lower ends of all the first evaporation tubes and the second evaporation tubes on the opposite side penetrate the first end cap and are connected to the inlet pipe, and the lower ends of all the first evaporation tubes and the second evaporation tubes on the opposite side penetrate the first end cap and are connected to the outlet pipe; the inlet pipe and the outlet pipe are respectively provided with a liquid inlet pipe and a liquid outlet pipe;

[0006] A movable scraper is sleeved on the outer wall of all the first evaporation tubes and the second evaporation tubes, and a lifting device fixedly connected to the bottom of the scraper is provided at the bottom of the first end cover, and the lifting device is located inside the inlet tube.

[0007] In order to clean the water droplets on the evaporation tube, as a preferred evaporator with uniform heat transfer in the utility model, the upper and lower sides of the scraper are provided with a plurality of shovel sleeves symmetrically distributed up and down, the shovel sleeves are in a conical structure, and the first evaporation tube and the second evaporation tube are respectively sleeved in the shovel sleeves.

[0008] In order to facilitate cleaning of the inner wall of the tube body, as a preferred embodiment of the evaporator with uniform heat transfer of the utility model, the outer wall of the scraper is in contact with the inner wall of the tube body.

[0009] In order to facilitate the scraper to move up and down, as a preferred evaporator with uniform heat transfer in the utility model, the lifting device is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

[0010] In order to enhance the heat preservation effect, as a preferred embodiment of the evaporator with uniform heat transfer of the utility model, the outer wall of the tube body is provided with a heat preservation sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model arranges a plurality of U-shaped first evaporation tubes and second evaporation tubes in a staggered and circular array in a tube body, so that the heat transfer area of ​​the evaporator is evenly distributed, thereby improving the evaporation efficiency; the first evaporation tubes and the second evaporation tubes are sleeved in a scraper, and by starting the lifting device to move the scraper up and down, the water droplets condensed on the surface of the first evaporation tubes and the second evaporation tubes can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 This is a front view structural schematic diagram of the utility model;

[0015] Figure 2 It is a bottom view structural schematic diagram of the first evaporation tube and the second evaporation tube of the utility model;

[0016] Figure 3 It is a schematic diagram of the top view of the scraper and the shovel sleeve of the utility model.

[0017] In the figure: 1. evaporator body; 2. tube body; 3. first end cover; 4. second end cover; 5. inlet pipe; 6. outlet pipe; 7. first evaporation tube; 8. second evaporation tube; 9. liquid inlet pipe; 10. liquid outlet pipe; 11. scraper; 12. lifting device; 13. shovel cover; 14. insulation cover. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In addition, in the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0021] See also Figures 1 to 3 , an evaporator with uniform heat transfer, comprising an evaporator body 1, characterized in that: the evaporator body 1 comprises a tube body 2, a first end cover 3 and a second end cover 4 arranged at both ends of the tube body 2; an inlet pipe 5 and an outlet pipe 6 are arranged at the bottom of the first end cover 3, the inlet pipe 5 is located in the outlet pipe 6, and the inlet pipe 5 and the outlet pipe 6 are both annular structures; a plurality of first evaporation tubes 7 and second evaporation tubes 8 are arranged on the first end cover 3, which are staggered and distributed in a circular array, and the first evaporation tubes 7 and the second evaporation tubes 8 are both U-shaped structures; the lower ends of all the first evaporation tubes 7 and the second evaporation tubes 8 on the opposite side penetrate the first end cover 3 and are connected to the inlet pipe 5, and the lower ends of all the first evaporation tubes 7 and the second evaporation tubes 8 on the opposite side penetrate the first end cover 3 and are connected to the outlet pipe 6; the inlet pipe 5 and the outlet pipe 6 are respectively provided with a liquid inlet pipe 9 and a liquid outlet pipe 10;

[0022] A movable scraper 11 is sleeved on the outer wall of all the first evaporation tubes 7 and the second evaporation tubes 8 . A lifting device 12 fixedly connected to the bottom of the scraper 11 is provided at the bottom of the first end cover 3 . The lifting device 12 is located inside the inlet pipe 5 .

[0023] In this embodiment: the first end cover 3 and the second end cover 4 are installed at both ends of the tube body 2 to form an evaporator chamber; a plurality of first evaporation tubes 7 and second evaporation tubes 8 in a U-shaped structure are arranged in the tube body 2, and the two ends of the first evaporation tubes 7 and the second evaporation tubes 8 are respectively connected to the inlet pipe 5 and the outlet pipe 6, the liquid inlet pipe 9 transports liquid to one end of all the first evaporation tubes 7 and the second evaporation tubes 8, and the water in the first evaporation tubes 7 and the second evaporation tubes 8 and the outlet pipe 6 is discharged through the liquid outlet pipe 10, and the plurality of first evaporation tubes 7 and the second evaporation tubes 8 in a U-shaped structure are staggered and arranged in a circular array, so that the heat transfer area of ​​the evaporator is evenly distributed, thereby improving the evaporation efficiency; the first evaporation tubes 7 and the second evaporation tubes 8 are sleeved in the scraper 11, and by starting the lifting device 12, the scraper 11 is moved up and down, and the water droplets condensed on the surface of the first evaporation tubes 7 and the second evaporation tubes 8 can be cleaned.

[0024] As a technical optimization solution of the utility model, a plurality of shovel sleeves 13 symmetrically distributed up and down are arranged on the upper and lower sides of the scraper 11. The shovel sleeves 13 are conical structures, and the first evaporation tube 7 and the second evaporation tube 8 are respectively sleeved in the shovel sleeves 13.

[0025] In this embodiment, when the cone and the scraper 11 move up and down, the dust accumulated on the first evaporation tube 7 and the second evaporation tube 8 can be cleaned efficiently, so as to prevent the condensed water from condensing on the surface of the tube and blocking the direct contact between the hot air and the tube.

[0026] As a technical optimization solution of the present invention, the outer wall of the scraper 11 is in contact with the inner wall of the tube body 2 .

[0027] In this embodiment, the outer wall of the scraper 11 is in contact with the inner wall of the tube body 2 , and when the scraper 11 moves up and down, the dust accumulated inside the tube body 2 can be cleaned.

[0028] As a technical optimization solution of the utility model, the lifting device 12 is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

[0029] As a technical optimization solution of the present utility model, a heat-insulating sleeve 14 is provided on the outer wall of the tube body 2 .

[0030] In this embodiment, the heat-insulating sleeve 14 can further reduce the heat dissipation effect of the tube body 2 and improve the evaporation efficiency.

[0031] Working principle: When the utility model is used, firstly, the first end cover 3 and the second end cover 4 are installed to the two ends of the tube body 2 to form an evaporator chamber; then, a plurality of first evaporation tubes 7 and second evaporation tubes 8 of U-shaped structure are staggered and arranged in a circular array in the tube body 2, so that the heat transfer area of ​​the evaporator is evenly distributed, thereby improving the evaporation efficiency; the first evaporation tubes 7 and the second evaporation tubes 8 are sleeved in the scraper 11, and the lifting device 12 is started to move the scraper 11 up and down, so that the water droplets condensed on the surface of the first evaporation tubes 7 and the second evaporation tubes 8 can be cleaned.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An evaporator with uniform heat transfer, comprising an evaporator body (1), characterized in that: The evaporator body (1) comprises a tube body (2), a first end cover (3) and a second end cover (4) arranged at both ends of the tube body (2); an inlet pipe (5) and an outlet pipe (6) are arranged at the bottom of the first end cover (3), the inlet pipe (5) is located inside the outlet pipe (6), and the inlet pipe (5) and the outlet pipe (6) are both annular structures; a plurality of first evaporation tubes (7) and second evaporation tubes (8) are arranged on the first end cover (3) and are distributed in a staggered and circular array, and the first evaporation tubes (7) and the second evaporation tubes (8) are both U-shaped structures; the lower ends of all the first evaporation tubes (7) and the second evaporation tubes (8) on the opposite side pass through the first end cover (3) and are connected to the inlet pipe (5), and the lower ends of all the first evaporation tubes (7) and the second evaporation tubes (8) on the opposite side pass through the first end cover (3) and are connected to the outlet pipe (6); the inlet pipe (5) and the outlet pipe (6) are respectively provided with a liquid inlet pipe (9) and a liquid outlet pipe (10); A movable scraper (11) is sleeved on the outer wall of all the first evaporation tubes (7) and the second evaporation tubes (8); a lifting device (12) fixedly connected to the bottom of the scraper (11) is provided at the bottom of the first end cover (3); and the lifting device (12) is located inside the inlet tube (5).

2. The evaporator with uniform heat transfer according to claim 1, characterized in that: A plurality of shovel sleeves (13) symmetrically distributed up and down are provided on both upper and lower sides of the scraper (11); the shovel sleeves (13) are of a conical structure; the first evaporation tube (7) and the second evaporation tube (8) are respectively sleeved in the shovel sleeves (13).

3. The evaporator with uniform heat transfer according to claim 1, characterized in that: The outer wall of the scraper (11) fits the inner wall of the tube body (2).

4. The evaporator with uniform heat transfer according to claim 1, characterized in that: The lifting device (12) is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

5. The evaporator with uniform heat transfer according to claim 1, characterized in that: The outer wall of the tube body (2) is provided with a heat-insulating sleeve (14).

Images