Medium and low temperature screw water chilling unit

Abstract

The utility model discloses a medium and low temperature screw water chilling unit which comprises a shell. According to the noise reduction device, noise caused by the fact that equipment makes contact with the shell and collides with the shell when the equipment shakes during operation is reduced through the bearing plate, the telescopic rods and the reset springs, noise reduction is conducted through the sound insulation sponge filled in the shell, and noise generated during equipment operation is reduced through the sound insulation sponge, the bearing plate, the telescopic rods and the reset springs; the ice blocks are conveyed into the water tank through the arranged feeding opening, meanwhile, the motor is started, the motor drives the auger to rapidly mix water and the ice blocks in the water tank, then the water is conveyed into the coiled pipe through the water pump, meanwhile, the draught fan is started, and the ice blocks in the coiled pipe are rapidly mixed; external air is conveyed into the shell through the fan, and the external air is cooled through the coiled pipe in the conveying process, so that cold air is conveyed into the shell, and the temperature of a unit in the shell can be rapidly and effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, specifically to a medium-low temperature screw chiller unit. Background Technology

[0002] Screw chillers get their name from the screw compressor they use. They have a higher cooling capacity than scroll chillers and are mainly used in chemical plants, ink printing plants, automobile manufacturing plants, central air conditioning systems, or other large-scale industrial refrigeration applications. However, prolonged continuous operation of a high-speed screw chiller can lead to overheating, and insufficient heat dissipation can easily cause machine damage.

[0003] After inspection, it was found that the publicly disclosed (announcement) number CN209399599U is an ultra-low temperature screw chiller unit, including a screw compressor, an evaporator installed at the lower end of the screw compressor, an expansion valve installed at the right end of the evaporator, a condenser installed at the lower end of the evaporator, an electrical control system installed at the left end of the condenser, and a base installed at the lower end of the condenser. The base is equipped with a braking device and casters. This invention, by incorporating a braking device and a rocker arm driving a worm gear, allows the screw to move vertically under the rotation of the nut. This facilitates the movement of the ultra-low temperature screw chiller unit, eliminating the need for tools, saving transportation costs, and improving installation efficiency. It also facilitates the positioning of the ultra-low temperature screw chiller unit. Furthermore, the use of permanent magnets, electromagnets, coils, and springs mitigates vibrations during operation, extending the equipment's lifespan. However, screw chillers are extremely noisy during operation, which is very detrimental to their use. The resulting loud noise significantly impacts usability. Therefore, a medium-low temperature screw chiller unit is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the issues raised in the appeal, this utility model provides a medium-low temperature screw chiller unit, thereby resolving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To address the aforementioned problems, the specific technical solution adopted by this utility model is as follows:

[0008] A medium-low temperature screw chiller unit includes a housing, the housing is filled with sound-insulating sponge, and a telescopic rod is provided inside the housing. A return spring is provided on the telescopic rod, and one end of the telescopic rod is connected to a support plate. A condenser is provided on the top surface of the support plate, and the condenser is connected to an oil separator, which is connected to a screw compressor.

[0009] Furthermore, an air inlet is provided on one side surface of the housing, and a protective cover is provided on the outer side of the air inlet on one side surface of the housing. A filter screen is provided on one side surface of the protective cover, and a fan is provided inside the protective cover.

[0010] Furthermore, an exhaust port is provided on the other side surface of the housing, and another protective cover is provided on the outer side of the exhaust port on one side surface of the housing, and a fan is provided inside the protective cover.

[0011] Furthermore, a water tank is provided on the top surface of the shell, and a feed inlet is provided on the top surface of the water tank. The water tank is connected to a water pump, and the water pump is connected to a serpentine pipe through a water pipe. The serpentine pipe is located inside the air inlet.

[0012] Furthermore, a motor is installed on the top surface of the water tank, and an auger is connected to the output end of the motor. The auger is installed inside the water tank, and an observation window is opened on one side surface of the water tank.

[0013] Furthermore, the housing is connected to an inspection door via a hinge, and an operation panel is provided on one side of the housing, located on the side of the inspection door.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a medium-low temperature screw chiller unit, which has the following beneficial effects:

[0016] (1) This utility model employs a motor, a bearing plate, a telescopic rod, a return spring, and a fan. In actual use, the bearing plate, telescopic rod, and return spring reduce the noise generated by the collision when the equipment shakes during operation. The sound-insulating sponge filling the shell further reduces noise. The sound-insulating sponge, bearing plate, telescopic rod, and return spring reduce the noise during equipment operation, thereby reducing noise pollution to the environment and harm to the health of workers. Ice blocks are transported to the water tank through the feed inlet, and the motor is started at the same time, driving the auger to... Water and ice are rapidly mixed in the water tank, and then pumped into a serpentine tube. Simultaneously, a fan is activated to draw outside air into the casing. During this process, the outside air is cooled through the serpentine tube, thus delivering cool air into the casing. This quickly and effectively lowers the temperature of the unit inside the casing. The air is then exhausted through the fan and exhaust vents, improving the unit's heat dissipation efficiency. A protective cover and filter are installed on the outside of the fan to prevent external dust from entering the casing and accumulating, thus enhancing the device's practicality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a medium-low temperature screw chiller unit proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a medium-low temperature screw chiller unit according to this utility model;

[0020] Figure 3 This is an enlarged view of point A of a medium-low temperature screw chiller unit according to this utility model.

[0021] In the picture:

[0022] 1. Housing; 2. Inspection door; 3. Hinge; 4. Observation window; 5. Motor; 6. Water tank; 7. Protective cover; 8. Filter screen; 9. Control panel; 10. Feed inlet; 11. Screw; 12. Telescopic rod; 13. Water pump; 14. Oil separator; 15. Air inlet; 16. Screw compressor; 17. Fan; 18. Serpentine tube; 19. Condenser; 20. Sound insulation foam; 21. Support plate; 22. Exhaust port; 23. Return spring. Detailed Implementation

[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present invention, a medium-low temperature screw chiller unit is provided.

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3As shown, a medium-low temperature screw chiller unit according to an embodiment of the present invention includes a housing 1, which is filled with sound-insulating sponge 20. A telescopic rod 12 is provided inside the housing 1, and a return spring 23 is provided on the telescopic rod 12. One end of the telescopic rod 12 is connected to a support plate 21. A condenser 19 is provided on the top surface of the support plate 21, and the condenser 19 is connected to an oil separator 14. The oil separator 14 is connected to a screw compressor 16. The telescopic rod 12 and the return spring 23 reduce the impact of the equipment shaking on the housing 1, thereby reducing the generation of noise.

[0026] In one embodiment, an air inlet 15 is provided on one side surface of the housing 1, and a protective cover 7 is provided on the outer side of the air inlet 15 on one side surface of the housing 1. A filter screen 8 is provided on one side surface of the protective cover 7, and a fan 17 is provided inside the protective cover 7. The filter screen 8 can prevent dust from entering the housing 1 and prevent dust accumulation from affecting the heat dissipation of the equipment inside the housing 1.

[0027] In one embodiment, an exhaust port 22 is provided on the other side surface of the housing 1, and another protective cover 7 is provided on the outer side of the exhaust port 22 on one side surface of the housing 1, and a fan 17 is provided inside the protective cover 7.

[0028] In one embodiment, a water tank 6 is provided on the top surface of the housing 1, and a feed inlet 10 is provided on the top surface of the water tank 6. The water tank 6 is connected to a water pump 13, and the water pump 13 is connected to a serpentine pipe 18 through a water pipe. The serpentine pipe 18 is located inside the air inlet 15. By placing the serpentine pipe 18 inside the air inlet 15, the air is cooled when air is introduced, thereby cooling the temperature inside the housing 1.

[0029] In one embodiment, a motor 5 is provided on the top surface of the water tank 6, and an auger 11 is connected to the output end of the motor 5. The auger 11 is located inside the water tank 6, and an observation window 4 is provided on one side surface of the water tank 6, so that the condition inside the water tank 6 can be easily observed through the observation window 4.

[0030] In one embodiment, the housing 1 is connected to the access door 2 via a hinge 3, and an operation panel 9 is provided on one side of the housing 1 located on the side of the access door 2.

[0031] Working principle: The supporting plate 21, telescopic rod 12, and return spring 23 reduce the noise generated by the collision when the equipment shakes during operation. The sound-absorbing sponge 20 filling the shell 1 further reduces noise. The combination of the sound-absorbing sponge 20, supporting plate 21, telescopic rod 12, and return spring 23 reduces noise during operation, thus minimizing environmental pollution and harm to workers. Ice is fed into the water tank 6 through the feed inlet 10. Simultaneously, the motor 5 is started, driving the auger 11 to quickly mix the water and ice in the water tank 6. Water is pumped into the serpentine pipe 18 by water pump 13, and at the same time, the fan 17 is started to deliver outside air into the housing 1. During the delivery process, the outside air is cooled by the serpentine pipe 18, thereby delivering cold air into the housing 1. This can quickly and effectively reduce the temperature of the unit inside the housing 1. The air inside the housing 1 is then discharged through the fan 17 and the exhaust port 22, improving the heat dissipation efficiency of the unit. At the same time, a protective cover 7 and a filter screen 8 are installed on the outside of the fan 17. The filter screen 8 prevents external dust from entering the housing 1, preventing dust accumulation from affecting the heat dissipation effect of the equipment, thereby increasing the practicality of the device.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medium-low temperature screw water chiller comprising a shell (1), characterized in that, The housing (1) is filled with sound-insulating sponge (20), and a telescopic rod (12) is provided inside the housing (1). A return spring (23) is provided on the telescopic rod (12), and a support plate (21) is connected to one end of the telescopic rod (12). A condenser (19) is provided on the top surface of the support plate (21), and the condenser (19) is connected to an oil separator (14), and the oil separator (14) is connected to a screw compressor (16).

2. The medium-low temperature screw water chiller according to claim 1, characterized in that, An air inlet (15) is provided on one side surface of the housing (1), and a protective cover (7) is provided on the outer side of the air inlet (15) on one side surface of the housing (1). A filter screen (8) is provided on one side surface of the protective cover (7), and a fan (17) is provided inside the protective cover (7).

3. The medium-low temperature screw water chiller according to claim 1, characterized in that, An exhaust port (22) is provided on the other side surface of the housing (1), and another protective cover (7) is provided on the outer side of the exhaust port (22) on one side surface of the housing (1), and a fan (17) is provided inside the protective cover (7).

4. The medium-low temperature screw water chiller according to claim 1, characterized in that, The top surface of the housing (1) is provided with a water tank (6), and the top surface of the water tank (6) is provided with a feed inlet (10). The water tank (6) is connected to a water pump (13), and the water pump (13) is connected to a serpentine pipe (18) through a water pipe. The serpentine pipe (18) is located inside the air inlet (15).

5. The medium-low temperature screw water chiller according to claim 4, characterized in that, The top surface of the water tank (6) is provided with a motor (5), and the output end of the motor (5) is connected to an auger (11). The auger (11) is located inside the water tank (6), and an observation window (4) is opened on one side surface of the water tank (6).

6. The medium-low temperature screw water chiller according to claim 1, characterized in that, The housing (1) is connected to the inspection door (2) via a hinge (3), and an operation panel (9) is provided on one side of the housing (1) located on the side of the inspection door (2).

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