Noise-proof screw cooling-water machine

Abstract

The utility model provides an anti-noise screw water chiller which comprises a screw compressor, a shell and tube condenser, a flooded evaporator, a filter, an electromagnetic valve, a liquid viewing mirror and an expansion valve, refrigerant gas enters the screw compressor for gas compression, the compressed refrigerant gas is then discharged into the shell and tube condenser, and the compressed refrigerant gas is discharged into the flooded evaporator. The refrigerant exchanges heat with an external cooling medium (such as air or cooling water), releases heat and is gradually cooled and condensed into a liquid state, the liquid refrigerant enters the evaporator through the expansion valve, the pressure is suddenly reduced to form a low-temperature and low-pressure refrigerant, the refrigerant absorbs the heat of a cooled object and then evaporates into a gas state, and the cooling effect is achieved; and through multiple times of shunting-impacting, the internal energy of the air flow is consumed, the flow speed is reduced, and then noise is reduced.

Description

Technical Field

[0001] The utility model relates to the field of water chillers, in particular to a noise-proof screw water chiller. Background Art

[0002] Screw chillers are chillers with various forms of screw compressors as the main unit. They are assembled refrigeration devices consisting of screw refrigeration compressors, condensers, evaporators, thermal expansion valves, oil separators, automatic control components and instruments.

[0003] During the use of screw chillers, there is a lot of noise due to the circulating flow of coolant and the high flow rate that is difficult to control. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above problems in the prior art, the utility model provides a noise-proof screw chiller.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] A noise-proof screw water chiller, comprising a screw compressor, a shell and tube condenser, a flooded evaporator, a filter, a solenoid valve, a sight glass and an expansion valve;

[0009] The output end of the screw compressor is sequentially connected to the shell and tube condenser, the filter, the solenoid valve, the sight glass, the expansion valve and the flooded evaporator through a circulation pipeline, and finally connected to the input end of the screw compressor to realize gas circulation;

[0010] The shell and tube condenser and the flooded evaporator are both provided with cooling pipes, the cooling pipes comprising an inner tube body and an outer tube body, the inner tube body and the outer tube body are both hollow tube bodies, a plurality of silencers are evenly arranged in the outer tube body, a plurality of first overflow holes are evenly arranged in the silencers, the inner tube body is sleeved in the outer tube body and is coaxially arranged, a plurality of second overflow holes are evenly arranged on the surface of the inner tube body, and a plurality of funnel-shaped shrinkage tubes are evenly arranged in the inner tube body.

[0011] (III) Beneficial effects

[0012] The beneficial effects of the utility model are:

[0013] The refrigerant gas enters the screw compressor for gas compression, and the compressed refrigerant gas is then discharged into the shell and tube condenser, where it exchanges heat with the external cooling medium (such as air or cooling water), releasing heat and gradually cooling and condensing into liquid. The liquid refrigerant enters the evaporator through the expansion valve, and the pressure drops sharply, forming a low-temperature, low-pressure refrigerant. After absorbing the heat of the cooled object, it evaporates into a gaseous state to achieve a cooling effect. While the refrigerant is in the cooling tube, the air flows impact each other, causing the air flow rate to slow down. After multiple diversions and impacts, the internal energy of the air flow is consumed, the flow rate is reduced, and the noise is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a noise-proof screw chiller;

[0015] Figure 2 This is a working principle diagram of a noise-proof screw chiller;

[0016] Figure 3 It is a schematic diagram of the structure of the cooling pipe;

[0017] Description of reference numerals:

[0018] 1. Screw compressor;

[0019] 2. Shell and tube condenser;

[0020] 3. Cooling pipe;

[0021] 31. outer tube body; 32. inner tube body; 33. muffler plate; 34. first overflow hole; 35. second overflow hole;

[0022] 4. Filter;

[0023] 5. Solenoid valve;

[0024] 6. Sight glass;

[0025] 7. Expansion valve;

[0026] 8. Fully liquid evaporator. DETAILED DESCRIPTION

[0027] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0028] Please refer to Figures 1 to 3 The utility model provides a noise-proof screw water chiller, comprising a screw compressor 1, a shell and tube condenser 2, a flooded evaporator 8, a filter 4, a solenoid valve 5, a sight glass 6 and an expansion valve 7;

[0029] The output end of the screw compressor 1 is connected to the shell and tube condenser 2, the filter 4, the solenoid valve 5, the sight glass 6, the expansion valve 7 and the flooded evaporator 8 in sequence through the circulation pipeline, and finally connected to the input end of the screw compressor 1 to realize gas circulation;

[0030] The shell and tube condenser 2 and the flooded evaporator 8 are both provided with a cooling tube 3, and the cooling tube 3 includes an inner tube body 32 and an outer tube body 31, and both the inner tube body 32 and the outer tube body 31 are hollow tube bodies, and a plurality of muffler plates 33 are evenly arranged in the outer tube body 31, and a plurality of first overflow holes 34 are evenly arranged on the muffler plates 33, and the inner tube body 32 is sleeved in the outer tube body 31 and is coaxially arranged, and a plurality of second overflow holes 35 are evenly distributed on the surface of the inner tube body 32, and a plurality of funnel-shaped shrinkage tubes are evenly arranged in the inner tube body 32;

[0031] When in use, the refrigerant gas enters the screw compressor 1 for gas compression. The compressed high-temperature and high-pressure refrigerant gas is then discharged into the shell and tube condenser 2, where it exchanges heat with an external cooling medium (such as air or cooling water), releases heat and gradually cools and condenses into a liquid. The liquid refrigerant enters the evaporator through the expansion valve 7, where the pressure drops suddenly, forming a low-temperature and low-pressure refrigerant. After absorbing the heat of the cooled object, it evaporates into a gas, thereby achieving a cooling effect. The refrigerant is in the cooling tube 3, and the air flows impact each other, causing the air flow rate to slow down. After multiple diversions and impacts, the internal energy of the air flow is consumed, the flow rate is reduced, and the noise is reduced.

[0032] The working principle of the utility model is as follows:

[0033] The refrigerant gas enters the screw compressor 1 for gas compression, and the compressed refrigerant gas is then discharged into the shell and tube condenser 2, where it exchanges heat with an external cooling medium (such as air or cooling water), releases heat and gradually cools and condenses into a liquid. The liquid refrigerant enters the evaporator through the expansion valve 7, where the pressure drops suddenly, forming a low-temperature, low-pressure refrigerant, which absorbs the heat of the cooled object and evaporates into a gas, thereby achieving a cooling effect. The refrigerant is in the cooling tube 3, and the air flows impact each other, causing the air flow rate to slow down. After multiple diversions and impacts, the internal energy of the air flow is consumed, the flow rate is reduced, and the noise is reduced.

[0034] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0035] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A noise-proof screw chiller, characterized in that: Including screw compressor, shell and tube condenser, flooded evaporator, filter, solenoid valve, sight glass and expansion valve; The output end of the screw compressor is connected to the shell and tube condenser, filter, solenoid valve, sight glass, expansion valve and flooded evaporator in sequence through a circulation pipeline, and finally connected to the input end of the screw compressor to realize gas circulation; The shell and tube condenser and the flooded evaporator are both provided with cooling pipes, and the cooling pipes include an inner tube body and an outer tube body, and the inner tube body and the outer tube body are both hollow tube bodies. Several silencers are evenly spaced in the outer tube body, and a plurality of first overflow holes are evenly distributed on the silencers. The inner tube body is sleeved in the outer tube body and coaxially arranged, and a plurality of second overflow holes are evenly distributed on the surface of the inner tube body, and a plurality of funnel-shaped shrinkage tubes are evenly spaced in the inner tube body.

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