Water chiller with noise reduction structure

Abstract

An ice water machine with a noise reduction structure comprises an ice water machine body and a damping foot pad, the ice water machine body is formed by assembling a shell, an evaporator, a compressor, a condenser, a liquid storage tank, a filter and an expansion valve, a sound insulation box is arranged at the inner bottom end of the shell, the compressor is arranged in the sound insulation box, and a through groove is formed in the top end of the sound insulation box; a refrigeration piece is detachably installed in the through groove and electrically connected with the power source through an electric wire, the bottom end of the shell is fixedly connected with a damping foot pad, and the damping foot pad comprises a foot pad body and a first rubber pad. Through the arrangement of the sound insulation box and the refrigeration piece, the compressor of a main noise source can be contained, and noise and vibration are isolated on the premise that the service life of the compressor is not affected.

Description

Technical Field

[0001] The utility model relates to the field of ice water machines, in particular to an ice water machine with a noise reduction structure. Background Art

[0002] In the chiller industry, chillers can be divided into air-cooled chillers and water-cooled chillers. The structures of the two are roughly the same, and the difference is only the heat exchange method. Since air-cooled chillers need to use fans to dissipate heat, the noise will be relatively high. Although water-cooled chillers do not have fans, the compressors required inside the chillers will also make a lot of noise. In industrial production, high-decibel noise is also a relatively widespread environmental hazard. Long-term exposure to high-decibel noise is likely to damage hearing and induce a variety of diseases. The existing many types of chillers do not have suitable noise reduction structures and are noisy.

[0003] At present, the Chinese patent with the authorization announcement number CN217209908U discloses a noise reduction device for an industrial chiller, including a load-bearing mounting plate, a noise reduction soundproof box, a control button, a chiller body, a fixing component and a noise reduction component. The utility model belongs to the field of chiller technology, specifically a noise reduction device for an industrial chiller, which increases the practicality of the device and reduces the possibility of noise pollution of the device by setting a noise reduction component, and improves the user experience of the industrial chiller by setting a fixing component.

[0004] The above-mentioned prior art solution has the following defects: the volume of the sound insulation device is too large, the component inside the chiller that causes noise is mainly the compressor, and placing the entire chiller body into the sound insulation device has little effect on reducing the noise of the compressor and reducing the resonance of the chiller. Utility Model Content

[0005] The purpose of the utility model is to provide a water chiller with a noise reduction structure to solve the problems existing in the above-mentioned prior art.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] The ice machine body is assembled from a shell, an evaporator, a compressor, a condenser, a liquid storage tank, a filter and an expansion valve. A soundproof box is provided at the inner bottom end of the shell, a compressor is provided in the soundproof box, a through groove is provided at the top end of the soundproof box, a refrigeration plate is detachably installed in the through groove, and the refrigeration plate is electrically connected to a power supply through an electric wire. A shock-absorbing foot is fixedly connected to the bottom end of the shell, and the shock-absorbing foot includes a foot body and a first rubber pad.

[0008] By adopting the above technical solution, the compressor, which is the main source of noise in the chiller, is set in a soundproof box. Since the compressor itself will inevitably accumulate heat when working, if it is only set in a closed soundproof box, the temperature of the compressor will continue to rise, damaging the life of the device and causing safety hazards. Therefore, a refrigeration plate is arranged on the top of the soundproof box, and the cold end of the refrigeration plate is arranged toward the inside of the soundproof box, while the hot end of the refrigeration plate is in contact with the cooling water circuit. The waste heat exchanged is taken away by the cooling water circuit, thereby ensuring that the compressor inside the soundproof box is always maintained at a normal operating temperature and effectively reducing noise.

[0009] In a further embodiment, a sound insulation material is provided at the inner bottom end of the sound insulation box, a compressor is fixedly mounted on the sound insulation material, the inlet of the compressor is connected to the outlet of the evaporator through a circulation pipe, the evaporator is arranged on the right side of the compressor, the evaporator is fixedly connected to the inner bottom end of the shell, the inlet of the evaporator is connected to the outlet of the filter through the circulation pipe, an expansion valve is provided on the pipe between the filter and the evaporator, and the filter is fixedly connected to the middle position of the inner left side of the shell.

[0010] By adopting the above technical solution, a sound insulation material is provided at the inner bottom end of the sound insulation box. The sound insulation material needs to have a certain heat resistance because it needs to be in direct contact with the compressor. Natural fiber, chemical fiber, glass fiber, ceramic fiber and asbestos fiber, etc. can be selected. The sound insulation box is provided with a through hole the same size as the circulating liquid pipeline, and the through hole is provided with a circulating liquid pipeline connected to the outlet and inlet of the compressor respectively. The expansion valve between the evaporator and the filter can play a throttling effect to protect the pipeline itself.

[0011] In a further embodiment, a partition is provided at a middle position inside the shell, and ventilation slots are provided on both sides of the shell.

[0012] By adopting the above technical solution, the shell is divided into an upper shell and a lower shell, which are divided by a partition. Ventilation grooves are provided on both sides of the upper shell. Since part of the noise is caused by resonance, providing ventilation grooves does not impair the sound insulation effect. Separating different components can effectively protect different components and avoid damage to other components after problems such as leakage and heat exchange failure occur.

[0013] In a further embodiment, the inlet of the filter is connected to the outlet of the liquid storage tank through a circulation pipe, the liquid storage tank is fixedly mounted on the top of the partition, multiple liquid storage tanks are provided, and the inlet of the liquid storage tank is connected to the outlet of the condenser through a circulation pipe, the condenser is fixedly mounted on the top of the partition, and the condenser is arranged on the right side of the liquid storage tank.

[0014] By adopting the above technical solution, the filter can filter out impurities in the circulating fluid, and the liquid storage tank is made of high-pressure resistant material and can store a large amount of low-temperature and high-pressure circulating fluid.

[0015] In a further embodiment, a rubber pad is bonded to the bottom end of the sound insulation box, and the bottom end of the rubber pad is bonded to the middle position of the bottom end inside the shell.

[0016] By adopting the above technical solution, in addition to using sound insulation materials to block the noise of the compressor when it is working, a rubber pad is also provided to prevent the vibration of the compressor from being transmitted to the inside of the chiller, thereby reducing the noise.

[0017] In a further embodiment, a plurality of pressure sensors are arranged in the soundproof box, and the plurality of pressure sensors are evenly arranged on the circulation pipes at the inlet and outlet of the compressor.

[0018] By adopting the above technical solution, the pressure sensor can detect the working state of the compressor, determine whether the compressor is working normally, and improve the reliability of the device.

[0019] In a further embodiment, a display screen is arranged on the inclined surface at the top end of the shell, and a dashboard is arranged on the right side of the display screen.

[0020] By adopting the above technical solution, the display screen can be controlled by touch, and the dashboard next to it accurately displays the current temperature of the chiller. The temperature control accuracy can be set through the touch screen, which can also store several different sets of preset temperature control accuracy for different cooling liquids.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. Through the setting of the soundproof box and rubber pad, the noise of the compressor can be isolated in the soundproof box, and the noise caused by the vibration of the compressor can be reduced by the rubber pad, thus achieving the effect of noise reduction;

[0023] 2. The shock-absorbing foot pads can isolate the chiller body from the ground, thereby further reducing the vibration of the chiller and reducing noise;

[0024] 3. By setting up the refrigeration plate, the temperature inside the soundproof box can be lowered, which can protect the compressor from always maintaining a suitable temperature during the working process, thereby increasing the working life of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the internal structure of the ice water machine body in the utility model;

[0027] Figure 3 It is a schematic diagram for reflecting the internal structure of the sound insulation box in the utility model.

[0028] In the figure, 1. chiller body; 11. shell; 12. partition; 13. evaporator; 14. condenser; 15. liquid storage tank; 16. filter; 17. expansion valve; 18. sound insulation box; 181. sound insulation material; 182. first rubber pad; 183. pressure sensor; 184. compressor; 19. refrigeration plate; 2. display screen; 3. instrument panel; 4. shock-absorbing foot pad; 41. foot pad body; 42. second rubber pad. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0030] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, "multiple" means two or more, unless otherwise explicitly and specifically defined.

[0031] Example:

[0032] like Figure 1-3As shown, a water chiller with a noise reduction structure includes a water chiller body 1 and a shock-absorbing foot pad 4. The water chiller body 1 is assembled from a shell 11, an evaporator 13, a compressor 184, a condenser 14, a liquid storage tank 15, a filter 16 and an expansion valve 17. A partition 12 is provided at the middle position of the inner side of the shell 11, ventilation grooves are provided on both sides of the shell 11, a soundproof box 18 is provided at the inner bottom end of the shell 11, a display screen 2 is provided on the inclined surface of the top end of the shell 11, an instrument panel 3 is provided on the right side of the display screen 2, and a compressor 184 is provided in the soundproof box 18. The top of the soundproof box 18 is provided with a through groove, in which a cooling plate 19 is detachably installed, and the cooling plate 19 is electrically connected to the power supply through a wire. The bottom end of the shell 11 is fixedly connected with a shock-absorbing pad foot, and the shock-absorbing pad foot includes a pad foot body 41 and a first rubber pad 182. The inner bottom end of the soundproof box 18 is provided with a sound insulation material 181, and a compressor 184 is fixedly installed on the sound insulation material 181. The bottom end of the soundproof box 18 is bonded with a second rubber pad 42, and the bottom end of the second rubber pad 42 is bonded to the middle position of the inner bottom end of the shell 11. A plurality of pressure sensors are provided in the soundproof box 18. The plurality of pressure sensors 183 are evenly arranged on the circulation pipes at the inlet and outlet of the compressor 184. By arranging the compressor 184 in the soundproof box 18, the noise generated by the compressor 184 during operation can be effectively blocked. The second rubber pad 42 arranged at the bottom of the soundproof box 18 can reduce the vibration and noise of the chiller body 1 caused by the vibration of the compressor 184. The shock-absorbing foot pad 4 at the bottom of the shell 11 of the chiller body 1 also reduces the vibration of the chiller body 1 and the noise generated by the ground, thereby reducing the noise of the chiller. To a degree that will not harm the human body, when the compressor 184 is in a closed soundproof space, it will continuously generate heat when working, and the accumulation of heat to a certain extent may affect the compressor 184, causing it to malfunction or affecting its service life. Therefore, a cooling plate 19 is arranged at the top of the soundproof box 18, and the cold end of the cooling plate 19 is arranged inwardly, which can conduct heat from the cold end to the hot end, and the hot end is in contact with the cooling water circuit, so that the heat of the hot end is transferred through the cooling water circuit, thereby achieving the effect of protecting the compressor 184 while reducing noise.

[0033] like Figure 1-3As shown, the inlet of the compressor 184 is communicated with the outlet of the evaporator 13 through a circulation pipeline. The evaporator 13 is arranged on the right side of the compressor 184. The evaporator 13 is fixedly connected to the inner bottom end of the shell 11. The inlet of the evaporator 13 is communicated with the outlet of the filter 16 through the circulation pipeline. An expansion valve 17 is arranged on the pipeline between the filter 16 and the evaporator 13. The filter 16 is fixedly connected to the inner left middle position of the shell 11. The inlet of the filter 16 is communicated with the outlet of the liquid storage tank 15 through the circulation pipeline. The liquid storage tank 15 is fixedly installed on the top of the partition 12. There are multiple liquid storage tanks 15. The inlet of the liquid storage tank 15 is communicated with the outlet of the condenser 14 through the circulation pipeline. The condenser 14 is fixed. Installed on the top of the partition 12, the condenser 14 is arranged on the right side of the liquid storage tank 15, and the compressor 184 arranged in the soundproof box 18 is still connected to the circulating liquid pipeline. It can compress the high-temperature and low-pressure gaseous circulating liquid flowing into the compressor 184 from the evaporator 13 into a high-temperature and high-pressure liquid circulating liquid, and exchange heat to the cooling water through the cooling water circuit in the condenser 14. After the high-pressure and low-temperature liquid circulating liquid enters the liquid storage tank 15 from the condenser 14, it flows into the filter 16 to filter out impurities in the circulating liquid, and passes through the expansion valve 17 to become a low-temperature and low-pressure circulating liquid and enters the evaporator 13, exchanging the waste heat in the chemical liquid circuit in the evaporator 13 to the circulating liquid, thereby completing the cooling of industrial water.

[0034] Specific implementation process: The chiller body 1 is controlled to start running through the touch display screen 2, and the chemical liquid enters the evaporator 13 of the chiller from the first cooling water circuit. At the same time, the low-temperature and high-pressure circulating liquid in the liquid storage tank 15 flows through the expansion valve 17 and enters the evaporator 13 to become a low-temperature and low-pressure circulating liquid. The circulating liquid contacts the chemical liquid circuit through the capillary tube and takes away the waste heat in the chemical liquid. The temperature sensor is used to ensure that the temperature control accuracy of the chemical liquid can meet the needs of industrial production. Then the circulating liquid with waste heat enters the compressor 184, and the compressor 184 is arranged inside the soundproof box 18. A refrigeration plate 19 is arranged on the top of the soundproof box 18, and a multi-layer sound insulation material 181 is laid inside the soundproof box 18. A rubber pad is bonded to the bottom of the soundproof box 18, so as to dissipate the noise, vibration and waste heat generated by the compressor 184 when it is working, thereby realizing the noise reduction function of the chiller. After the compressor 184 compresses the circulating fluid with waste heat into a high-temperature and high-pressure circulating fluid, the circulating fluid will enter the condenser 14 and contact with the cooling water circuit connected to the water tower. When the circulating fluid leaves the condenser 14, it will turn back into a low-temperature and high-pressure circulating fluid and enter the liquid storage tank 15 to complete the whole cycle. A first rubber pad 182 is also provided on the shock-absorbing foot pad 4 at the bottom of the chiller body 1, which can also reduce the noise caused by the vibration of the chiller, thereby isolating noise pollution and protecting physical and mental health.

[0035] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0036] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A water chiller with a noise reduction structure, comprising a water chiller body (1) and a shock-absorbing foot pad (4), characterized in that: The ice machine body (1) is assembled from a shell (11), an evaporator (13), a compressor (184), a condenser (14), a liquid storage tank (15), a filter (16) and an expansion valve (17); a soundproof box (18) is provided at the inner bottom end of the shell (11); a compressor (184) is provided in the soundproof box (18); a through slot is provided at the top end of the soundproof box (18); a refrigeration plate (19) is detachably installed in the through slot; the refrigeration plate (19) is electrically connected to a power source via an electric wire; a shock-absorbing pad foot is fixedly connected to the bottom end of the shell (11); the shock-absorbing pad foot comprises a pad foot body (41) and a first rubber pad (182).

2. The water chiller with noise reduction structure according to claim 1, characterized in that: The inner bottom end of the soundproof box (18) is provided with a soundproof material (181), a compressor (184) is fixedly mounted on the soundproof material (181), the inlet of the compressor (184) is connected to the outlet of the evaporator (13) through a circulation pipeline, the evaporator (13) is arranged on the right side of the compressor (184), the evaporator (13) is fixedly connected to the inner bottom end of the shell (11), the inlet of the evaporator (13) is connected to the outlet of the filter (16) through the circulation pipeline, an expansion valve (17) is provided on the pipeline between the filter (16) and the evaporator (13), and the filter (16) is fixedly connected to the inner left middle position of the shell (11).

3. The water chiller with noise reduction structure according to claim 2, characterized in that: A partition plate (12) is provided at the middle position of the inner side of the shell (11), and ventilation slots are provided on both sides of the shell (11).

4. The water chiller with noise reduction structure according to claim 3, characterized in that: The inlet of the filter (16) is connected to the outlet of the liquid storage tank (15) through a circulation pipe. The liquid storage tank (15) is fixedly mounted on the top of the partition (12). There are multiple liquid storage tanks (15). The inlet of the liquid storage tank (15) is connected to the outlet of the condenser (14) through a circulation pipe. The condenser (14) is fixedly mounted on the top of the partition (12). The condenser (14) is arranged on the right side of the liquid storage tank (15).

5. The water chiller with noise reduction structure according to claim 1, characterized in that: A second rubber pad (42) is bonded to the bottom end of the sound insulation box (18), and the bottom end of the second rubber pad (42) is bonded to the middle position of the bottom end inside the shell (11).

6. The water chiller with noise reduction structure according to claim 5, characterized in that: A plurality of pressure sensors (183) are arranged in the soundproof box (18), and the plurality of pressure sensors (183) are evenly arranged on the circulation pipes at the inlet and outlet of the compressor (184).

7. The water chiller with noise reduction structure according to claim 1, characterized in that: A display screen (2) is arranged on the inclined surface at the top end of the housing (11), and a dashboard (3) is arranged on the right side of the display screen (2).

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