Condensing device of water-cooling screw water chilling unit

Abstract

The utility model provides a condensing device of a water cooling screw type water chilling unit, which comprises a base, a convex ring is arranged at the top of the base, threads are arranged on the outer ring surface of the convex ring, an outer shell cylinder is sleeved outside the convex ring at the top of the base, an inner shell cylinder penetrates through the top of the outer shell cylinder, and the bottom of the inner shell cylinder extends to the top of the base. A heat exchange interlayer is formed between the outer barrel face of the inner shell barrel and the inner barrel face of the outer shell barrel, a spiral heat exchange pipe is arranged in the heat exchange interlayer outside the inner shell barrel in a sleeved mode, and one end of the spiral heat exchange pipe penetrates through the top of one side of the outer shell barrel and extends to the outside of the outer shell barrel. Compared with the prior art, the water-cooling heat exchanger has the advantages that the heat exchange interlayer is arranged between the outer shell barrel and the inner shell barrel, so that the spiral heat exchange pipe can be in full contact with condensate in the heat exchange interlayer, meanwhile, waste caused by the fact that a large amount of condensate cannot be in full contact with the heat exchange pipe is avoided, the water-cooling heat exchange cost is saved, and the water-cooling heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a condensing device of a water-cooled screw-type chiller, belonging to the field of water cooling manufacturing equipment. Background Art

[0002] The screw chiller with variable frequency drive adopts unique adaptive cooling capacity control logic, which synchronously adjusts the motor speed and electronic expansion valve opening according to changes in operating conditions, so that the compressor speed, volume ratio and evaporator liquid supply volume are always optimally matched, thereby ensuring that the unit always operates under optimal working conditions. The shell and tube condensing device is a common condensing device in water-cooled screw chiller equipment. The gas or liquid medium enters the condensing device at high temperature and flows through the pipe. The outside of the pipe is wrapped by the cooling liquid, which flows through the outside of the pipe and absorbs heat.

[0003] In the prior art, a U-shaped heat exchanger is used to transport the high-temperature medium in the condensing device. Although the condensate inside the condensing device shell can fully wrap the U-shaped heat exchanger, the U-shaped heat exchanger is flat as a whole, and the distance between the flat surface and the two sides of the inner wall of the condensate chamber is relatively far, resulting in a large amount of liquid inside the condensate chamber being unable to fully contact the heat exchanger. Only part of the liquid can absorb heat from the heat exchanger in time. However, the external heat exchanger needs to pump and cool the entire liquid inside the condensate chamber, which increases the water-cooling heat exchange cost and reduces the water-cooling heat exchange efficiency.

[0004] In summary, the present invention provides a condensing device for a water-cooled screw chiller to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a condensing device for a water-cooled screw chiller to solve the problem proposed in the above background technology that a large amount of condensate inside the water-cooled chamber cannot fully absorb heat with the heat exchange tube and must be extracted by the heat exchanger for heat exchange and recycling, resulting in increased water cooling heat exchange costs.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a condensing device of a water-cooled screw chiller, comprising a base, a convex ring is provided on the top of the base, and the outer ring surface of the convex ring is provided with a thread, an outer shell is sleeved on the outside of the top convex ring of the base, an inner shell is penetrated through the top of the outer shell, the bottom of the inner shell extends to the top of the base, a heat exchange insulation layer is formed between the outer shell surface of the inner shell and the inner shell surface of the outer shell, a spiral heat exchange tube is sleeved on the inside of the outer heat exchange insulation layer of the inner shell, one end of the spiral heat exchange tube penetrates the top of one side of the outer shell and extends to the outside of the outer shell, and the other end of the spiral heat exchange tube penetrates the bottom of the other side of the outer shell and extends to the outside of the outer shell.

[0007] Furthermore, both ends of the spiral heat exchange tube are fixedly connected to the outer shell, and the bottom of the inner shell is in contact with the top of the base.

[0008] Furthermore, a thread is provided at the connection between the outer surface of the inner shell and the outer shell, and the top end of the inner shell is threadedly connected to the top end of the outer shell.

[0009] Furthermore, a hollow groove is provided inside the inner shell, and the interior of the convex ring on the top of the base is connected to the interior of the outer shell.

[0010] Furthermore, the top of the inner shell is flush with the top of the outer shell, and a handle is fixedly connected to the top of the inner shell.

[0011] Furthermore, the bottom of one side of the outer shell is connected to a drain pipe, and the top of the other side of the outer shell is connected to a water inlet pipe.

[0012] Furthermore, the outer shell is threadedly connected to the base, and a sealing rubber ring is embedded at the top of the base and at the bottom of the outer shell.

[0013] Beneficial effects of the utility model:

[0014] By arranging the heat exchange insulation layer between the outer shell and the inner shell, the spiral heat exchange tube can fully contact the condensate inside the heat exchange insulation layer, while avoiding the waste caused by a large amount of condensate not being able to fully contact the heat exchange tube, saving the water cooling heat exchange cost and improving the water cooling heat exchange efficiency.

[0015] One end of the spiral heat exchange tube can transport the medium that needs to be cooled to the spiral heat exchange tube located inside the heat exchange insulation layer. The spiral heat exchange tube is continuously absorbed by the condensate inside the heat exchange insulation layer, thereby cooling the medium transported inside the spiral heat exchange tube. Due to the spiral transportation, the transportation path is increased, so that the medium can fully exchange heat inside the heat exchange insulation layer, thereby ensuring that the transported medium can be fully cooled, effectively improving the water cooling effect.

[0016] A hollow groove is opened inside the inner shell, which reduces unnecessary condensate storage space and effectively reduces the overall weight of the condensing device.

[0017] The inner shell can be easily rotated and disassembled by the handle, so that the condensate inside the heat exchange insulation can be replaced, which effectively improves the maintenance and repair convenience of the condensing device of the water-cooled screw chiller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 This is a schematic structural perspective diagram of a condensing device of a water-cooled screw chiller of the utility model;

[0020] Figure 2 This is a schematic front view of the structure of a condensing device of a water-cooled screw chiller of the utility model;

[0021] Figure 3 This is a schematic main cross-sectional view of the structure of a condensing device of a water-cooled screw chiller of the utility model;

[0022] Figure 4 for Figure 3 The schematic structural stereogram of the spiral heat exchange tube is shown.

[0023] In the figure: 1. Base; 2. Outer shell; 3. Sealing rubber ring; 4. Inner shell; 5. Hollow groove; 6. Heat exchange insulation; 7. Spiral heat exchange tube; 8. Water inlet pipe; 9. Drain pipe; 10. Handle. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1-4 The utility model provides a technical solution: a condensing device of a water-cooled screw chiller, comprising a base 1, a convex ring is provided on the top of the base 1, and the outer ring surface of the convex ring is provided with a thread, an outer shell 2 is sleeved on the outer ring of the top of the base 1, an inner shell 4 is passed through the top of the outer shell 2, and the bottom of the inner shell 4 extends to the top of the base 1, a heat exchange insulation layer 6 is formed between the outer cylinder surface of the inner shell 4 and the inner cylinder surface of the outer shell 2, and a spiral heat exchange tube 7 is sleeved on the inner heat exchange insulation layer 6 of the inner shell 4. One end of the heat exchange tube 7 passes through the top of one side of the outer shell tube 2 and extends to the outside of the outer shell tube 2. The other end of the spiral heat exchange tube 7 passes through the bottom of the other side of the outer shell tube 2 and extends to the outside of the outer shell tube 2. The interior of the heat exchange insulation 6 is used to fill the condensate transported by the external heat exchanger. Both ends of the spiral heat exchange tube 7 are fixedly connected to the outer shell tube 2. The bottom of the inner shell tube 4 is in contact with the top of the base 1. The connection between the outer tube surface of the inner shell tube 4 and the outer shell tube 2 is provided with a thread, and the top end of the inner shell tube 4 is threadedly connected to the top end of the outer shell tube 2.

[0026] See also Figure 2-4 A hollow groove 5 is provided inside the inner shell 4, which effectively reduces the overall weight of the condensing device. The interior of the convex ring on the top of the base 1 is connected to the interior of the outer shell 2. The top of the inner shell 4 is flush with the top of the outer shell 2. A handle 10 is fixedly connected to the top of the inner shell 4. The handle 10 facilitates the rotation of the inner shell 4 for disassembly, so that the condensate inside the heat exchange insulation layer 6 can be replaced.

[0027] See also Figure 2-4 The bottom of one side of the outer shell tube 2 is connected to a drain pipe 9, and the top of the other side of the outer shell tube 2 is connected to a water inlet pipe 8. The drain pipe 9 and the water inlet pipe 8 are both connected to the external heat exchanger, so that the condensate filled in the heat exchange insulation 6 inside the outer shell tube 2 can be received and sent, so that the condensate can be circulated and cooled, and then the medium transported inside the spiral heat exchange tube 7 can be circulated and cooled. The outer shell tube 2 is threadedly connected to the base 1, and a sealing rubber ring 3 is embedded at the top of the base 1 and at the bottom of the outer shell tube 2. The sealing rubber ring 3 can improve the sealing performance of the connection between the outer shell tube 2 and the base 1.

[0028] Specific implementation method: The medium to be cooled can be transported to the spiral heat exchange tube 7 located inside the heat exchange insulation layer 6 through one end of the spiral heat exchange tube 7. The spiral heat exchange tube 7 is continuously absorbed by the condensate inside the heat exchange insulation layer 6, so that the medium transported inside the spiral heat exchange tube 7 can be cooled. Due to the spiral transportation, the transportation path is increased, so that the medium can fully exchange heat inside the heat exchange insulation layer 6, thereby ensuring that the transported medium can be fully cooled, effectively improving the water cooling effect.

[0029] The cooled medium is transported out through the other end of the spiral heat exchange tube 7. The drain pipe 9 and the water inlet pipe 8 are both connected to the external heat exchanger, so that the condensate filled in the heat exchange insulation layer 6 inside the outer shell tube 2 can be received and transported, so that the condensate can be circulated and cooled, and then the medium transported inside the spiral heat exchange tube 7 can be circulated and cooled.

[0030] The heat exchange insulation layer 6 is arranged between the outer shell 2 and the inner shell 4, so that the spiral heat exchange tube 7 can fully contact the condensate inside the heat exchange insulation layer 6, while avoiding the waste caused by a large amount of condensate unable to fully contact the heat exchange tube, saving the water cooling heat exchange cost and improving the water cooling heat exchange efficiency.

[0031] A hollow groove 5 is provided inside the inner shell 4, which reduces unnecessary condensate storage space, thereby effectively reducing the overall weight of the condensing device.

[0032] The inner shell 4 can be easily rotated and disassembled by the handle 10, so that the condensate inside the heat exchange insulation layer 6 can be replaced.

[0033] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A condensing device of a water-cooled screw chiller, comprising a base (1), characterized in that: The top of the base (1) is provided with a convex ring, and the outer ring surface of the convex ring is provided with a thread. The outer shell (2) is sleeved on the outer convex ring of the base (1). The top of the outer shell (2) is penetrated by an inner shell (4). The bottom of the inner shell (4) extends to the top of the base (1). A heat exchange insulation layer (6) is formed between the outer shell surface of the inner shell (4) and the inner shell surface of the outer shell (2). A spiral heat exchange tube (7) is sleeved inside the outer heat exchange insulation layer (6) of the inner shell (4). One end of the spiral heat exchange tube (7) penetrates the top of one side of the outer shell (2) and extends to the outside of the outer shell (2). The other end of the spiral heat exchange tube (7) penetrates the bottom of the other side of the outer shell (2) and extends to the outside of the outer shell (2).

2. The condensing device of a water-cooled screw chiller according to claim 1, characterized in that: Both ends of the spiral heat exchange tube (7) are fixedly connected to the outer shell (2), and the bottom of the inner shell (4) is in contact with the top of the base (1).

3. The condensing device of a water-cooled screw chiller according to claim 1, characterized in that: The connection between the outer cylinder surface of the inner cylinder (4) and the outer cylinder (2) is provided with a thread, and the top end of the inner cylinder (4) is threadedly connected to the top end of the outer cylinder (2).

4. The condensing device of a water-cooled screw chiller according to claim 1, characterized in that: A hollow groove (5) is provided inside the inner shell (4), and the interior of the convex ring on the top of the base (1) is connected to the interior of the outer shell (2).

5. The condensing device of a water-cooled screw chiller according to claim 1, characterized in that: The top of the inner shell (4) is flush with the top of the outer shell (2), and a handle (10) is fixedly connected to the top of the inner shell (4).

6. The condensing device of a water-cooled screw chiller according to claim 1, characterized in that: The bottom of one side of the outer shell (2) is connected to a drainage pipe (9), and the top of the other side of the outer shell (2) is connected to a water inlet pipe (8).

7. The condensing device of a water-cooled screw chiller according to claim 1, characterized in that: The outer shell (2) is threadedly connected to the base (1), and a sealing rubber ring (3) is embedded at the top of the base (1) and at the bottom of the outer shell (2).

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