Semi-closed low-temperature screw condensing unit

Abstract

The utility model discloses a semi-closed low-temperature screw condensing unit, which relates to the technical field of condensers, and comprises a rack, an economizer is fixedly arranged in the rack, fixed covers are fixedly arranged at two ends of the economizer, a compressor is fixedly arranged above the economizer, and a screw rod is fixedly arranged on the compressor. And connecting pipes are fixedly arranged at the input end and the output end of the compressor. According to the condensing unit, the rack is arranged, the economizer is arranged in the rack, and the heat exchange efficiency of the condensing unit can be effectively improved through the arrangement of the economizer, so that the refrigerating capacity during operation under the low-temperature working condition can be improved, and the first heat exchange chamber, the second heat exchange chamber and the heat preservation chamber are arranged in the economizer; due to the arrangement of the multiple cavities, the heat exchange efficiency of water and a refrigerant in the economizer can be effectively improved, and therefore the refrigeration efficiency of the condensing unit is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of condensing machines, in particular to a semi-enclosed low-temperature screw condensing unit. Background Art

[0002] Low-temperature screw condensing unit, also known as screw refrigeration compressor, is a type of positive displacement refrigeration compressor. Compared with piston refrigeration compressor, it has simple structure, small size, light weight, few wearing parts, simple operation, large single-machine pressure ratio, insensitive to wet compression, wide application range and low load.

[0003] For example, a low-temperature screw condensing unit with publication number CN221036242U includes a low-temperature screw condensing unit body, a protective noise reduction structure is arranged on the low-temperature screw condensing unit body, the protective noise reduction structure includes two slide rails symmetrically fixedly installed on the low-temperature screw condensing unit body, a first protective frame and a second protective frame are respectively arranged on both sides of the low-temperature screw condensing unit body, the first protective frame and the second protective frame are slidably connected to the slide rails through a plurality of sliders, and sound-absorbing cotton is fixedly installed on the inner walls of the first protective frame and the second protective frame. The utility model can play a protective noise reduction function for the low-temperature screw condensing unit body as a whole through the arrangement of the protective noise reduction structure, and the first protective frame and the second protective frame as a whole can play a protective role and a good noise reduction function for the low-temperature screw condensing unit body.

[0004] The above technical solution has the problem of poor heat exchange efficiency between the condenser and water in practical applications, making it difficult to ensure the refrigeration efficiency of the condenser.

[0005] Therefore, it is necessary to invent a semi-enclosed low-temperature screw condensing unit to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a semi-enclosed low-temperature screw condensing unit to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present utility model provides the following technical solutions: a semi-closed low-temperature screw condensing unit, including a frame, an economizer is fixedly arranged inside the frame, fixed covers are fixedly arranged at both ends of the economizer, a compressor is fixedly arranged above the economizer, connecting pipes are fixedly arranged at the input end and the output end of the compressor, one ends of the two connecting pipes are respectively fixedly connected to the outer sides of the two fixed covers, a first heat exchange chamber is arranged in the middle of the inner side of the economizer, a heat preservation chamber is arranged around the outside of the first heat exchange chamber, a second heat exchange chamber is arranged above the first heat exchange chamber, a first heat exchange pipe penetrates through the inside of the second heat exchange chamber, a second heat exchange pipe penetrates through the inside of the heat preservation chamber, the heat preservation chamber is arranged in an arc structure, and extension plates are fixedly arranged at both ends of the heat preservation chamber, and an arc-shaped heat conduction pipe penetrates through the middle of the extension plate, and the heat conduction pipe is arranged inside the first heat exchange chamber.

[0008] Preferably, a water guide pipe is fixedly arranged at the top end of the outer side wall of the second heat exchange chamber, the water guide pipe is arranged in a "C" shape, and the bottom end of the water guide pipe extends to the top end inside the first heat exchange chamber.

[0009] Preferably, both ends of the first heat exchange pipe and the second heat exchange pipe respectively extend into the two fixed covers, and refrigerants are arranged inside the first heat exchange pipe, the second heat exchange pipe, the fixed covers and the connecting pipes.

[0010] Preferably, a water replenishing tank is fixedly arranged at the top end of the economizer, a conduit is fixedly arranged at the output end of the water replenishing tank, and one end of the conduit extends into the inside of the second heat exchange chamber.

[0011] Preferably, an electric control box is fixedly arranged on one side of the water replenishing tank, and the electric control box is electrically connected to the compressor.

[0012] Preferably, the compressor is a low-temperature screw compressor.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. By arranging the frame in the present utility model, an economizer is arranged inside the frame. The arrangement of the economizer can effectively improve the heat exchange efficiency of the condensing unit, thereby increasing the refrigerating capacity during operation under low-temperature conditions. By arranging the first heat exchange chamber, the second heat exchange chamber and the heat preservation chamber inside the economizer, the arrangement of multiple chambers can effectively improve the heat exchange efficiency of water and refrigerant in the economizer, thereby ensuring the refrigerating efficiency of the condensing unit;

[0015] 2. The utility model provides a first heat exchange chamber and a second heat exchange chamber. The first heat exchange chamber can heat and cool the water in storage and use, and the second heat exchange chamber can heat and cool the supplemented water. The supplemented water is transported to the first heat exchange chamber after cooling. While ensuring the water replenishment efficiency, it does not affect the discharge and use of the water in the first heat exchange chamber, thereby ensuring the stable operation of the supporting equipment of the condensing unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the fixed cover structure of the utility model.

[0018] Figure 3 It is a schematic cross-sectional view of the economizer structure of the utility model.

[0019] Figure 4 It is a schematic side section diagram of the economizer structure of the utility model.

[0020] In the figure: 1. frame; 2. economizer; 3. fixed cover; 4. compressor; 5. connecting pipe; 6. first heat exchange chamber; 7. insulation chamber; 8. second heat exchange chamber; 9. first heat exchange tube; 10. second heat exchange tube; 11. extension plate; 12. heat pipe; 13. water pipe; 14. water supply tank; 15. conduit; 16. electric control box. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4 The semi-enclosed low-temperature screw condensing unit shown includes a frame 1, an economizer 2 is fixedly arranged inside the frame 1, fixed covers 3 are fixedly arranged at both ends of the economizer 2, a compressor 4 is fixedly arranged above the economizer 2, connecting pipes 5 are fixedly arranged at the input and output ends of the compressor 4, one end of the two connecting pipes 5 is fixedly connected to the outer sides of the two fixed covers 3 respectively, a first heat exchange chamber 6 is arranged in the middle of the inner side of the economizer 2, a heat preservation chamber 7 is arranged around the outer side of the first heat exchange chamber 6, a second heat exchange chamber 8 is arranged above the first heat exchange chamber 6, a first heat exchange tube 9 is penetrated inside the second heat exchange chamber 8, a second heat exchange tube 10 is penetrated inside the heat preservation chamber 7, and the second heat exchange tube 10 can realize heat exchange and cooling of water in the heat preservation chamber 7;

[0023] Specifically, the heat preservation chamber 7 is arranged in an arc structure, and extension plates 11 are fixedly arranged at both ends of the heat preservation chamber 7. A heat conduction pipe 12 with an arc structure is arranged through the middle of the extension plate 11, and the heat conduction pipe 12 is arranged inside the first heat exchange chamber 6. The water in the heat preservation chamber 7 can perform heat exchange and heat preservation on the water in the first heat exchange chamber 6 through the heat conduction pipe 12, so as to ensure that the water in the first heat exchange chamber 6 remains in a low-temperature state;

[0024] More specifically, a water guide pipe 13 is fixedly arranged at the top end of the outer side wall of the second heat exchange chamber 8. The water guide pipe 13 is arranged in a "C" shape structure, and the bottom end of the water guide pipe 13 extends to the top end inside the first heat exchange chamber 6. Both ends of the first heat exchange pipe 9 and the second heat exchange pipe 10 extend into the two fixing covers 3 respectively. Refrigerant is arranged inside the first heat exchange pipe 9, the second heat exchange pipe 10, the fixing cover 3 and the connecting pipe 5. The cooled refrigerant can enter the first heat exchange pipe 9 and the second heat exchange pipe 10 through the connecting pipe 5 and the fixing cover 3;

[0025] Moreover, a water replenishing tank 14 is fixedly arranged at the top end of the economizer 2. The output end of the water replenishing tank 14 is fixedly provided with a conduit 15, and one end of the conduit 15 extends into the second heat exchange chamber 8. The water replenishing tank 14 can replenish the water in the first heat exchange chamber 6, and the water replenishing tank 14 can be connected to an external water pipe through a water pump;

[0026] Furthermore, an electric control box 16 is fixedly arranged on one side of the water replenishing tank 14, and the electric control box 16 is electrically connected to the compressor 4. The compressor 4 is a low-temperature screw compressor, and the low-temperature screw compressor can compress the refrigerant, so as to achieve a refrigeration effect.

[0027] Working principle of the present utility model:

[0028] When the device is in use, the compressor 4 can drive the refrigerant in the connecting pipe 5, the first heat exchange pipe 9 and the second heat exchange pipe 10 to move. The refrigerant is compressed when passing through the compressor 4 to realize the cooling of the refrigerant. The cooled refrigerant can enter the first heat exchange pipe 9 and the second heat exchange pipe 10 through the connecting pipe 5 and the fixing cover 3. The first heat exchange pipe 9 can exchange heat with the water in the second heat exchange chamber 8, so that the water in the second heat exchange chamber 8 is cooled and reduced in temperature. The cooled water can enter the first heat exchange chamber 8 through the water guide pipe 13 and then be discharged for use. The second heat exchange pipe 10 can cool and reduce the temperature of the water in the heat preservation chamber 7, and the water in the heat preservation chamber 7 can perform heat exchange and heat preservation on the water in the first heat exchange chamber 6 through the heat conduction pipe 12, so as to ensure that the water in the first heat exchange chamber 6 remains in a low-temperature state, thus ensuring that the water in the first chamber 6 can be used in a low-temperature state.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A semi-enclosed low-temperature screw condensing unit, comprising a frame (1), characterized in that: An economizer (2) is fixedly arranged inside the frame (1). Fixed covers (3) are fixedly arranged at both ends of the economizer (2). A compressor (4) is fixedly arranged above the economizer (2). Connecting pipes (5) are fixedly arranged at the input end and the output end of the compressor (4). One ends of the two connecting pipes (5) are respectively fixedly connected to the outer sides of the two fixed covers (3). A first heat exchange chamber (6) is arranged in the middle of the inner side of the economizer (2). A heat preservation chamber (7) is arranged around the outside of the first heat exchange chamber (6). A second heat exchange chamber (8) is arranged above the first heat exchange chamber (6). A first heat exchange pipe (9) penetrates through the inside of the second heat exchange chamber (8). A second heat exchange pipe (10) penetrates through the inside of the heat preservation chamber (7). The heat preservation chamber (7) is arranged in an arc structure, and extension plates (11) are fixedly arranged at both ends of the heat preservation chamber (7). A heat conduction pipe (12) in an arc structure penetrates through the middle of the extension plate (11), and the heat conduction pipe (12) is arranged inside the first heat exchange chamber (6).

2. The semi-enclosed low-temperature screw condensing unit according to claim 1, characterized in that: A water guide pipe (13) is fixedly arranged at the top end of the outer side wall of the second heat exchange chamber (8). The water guide pipe (13) is arranged in a "C" - shaped structure, and the bottom end of the water guide pipe (13) extends to the top end inside the first heat exchange chamber (6).

3. The semi-enclosed low-temperature screw condensing unit according to claim 2, characterized in that: Both ends of the first heat exchange pipe (9) and the second heat exchange pipe (10) extend to the inside of the two fixed covers (3). Refrigerant is arranged inside the first heat exchange pipe (9), the second heat exchange pipe (10), the fixed covers (3) and the connecting pipes (5).

4. The semi-enclosed low-temperature screw condensing unit according to claim 3, characterized in that: A water replenishing tank (14) is fixedly arranged at the top end of the economizer (2). A conduit (15) is fixedly arranged at the output end of the water replenishing tank (14), and one end of the conduit (15) extends to the inside of the second heat exchange chamber (8).

5. The semi-enclosed low-temperature screw condensing unit according to claim 4, characterized in that: An electric control box (16) is fixedly arranged on one side of the water replenishing tank (14), and the electric control box (16) is electrically connected to the compressor (4).

6. The semi-enclosed low-temperature screw condensing unit according to claim 5, characterized in that: The compressor (4) is a low - temperature screw compressor.

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