Shell assembly for water chiller and water chiller

Abstract

The present invention discloses a shell assembly and a chiller for a water chiller, belonging to the technical field of refrigeration equipment. The shell assembly and the chiller for a water chiller include a frame, and also include: a shell fixed on the frame; the shell includes a main body, the main body is built with a partition, the partition divides the internal space of the main body into an independent air passage cavity and a water storage cavity, and a middle box is provided in the middle of the partition. Through the improvement of the shell, the present invention, in the water chiller, the shell itself as a cold water container can only provide a basic cold water storage function. After the shell is partitioned by the partition, a cooling and heat exchange space can be provided, and the water distribution pipe disperses the clean water and the external cooling medium enters. In the process of the circulation of the clean water in the shell, the improvement of the structure can be used to efficiently cool the clean water.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigeration equipment, and in particular relates to a shell component for a water chiller and the water chiller. Background Art

[0002] The chiller is a key part of the central air-conditioning system. It is mainly used to generate and distribute cold water to meet the cooling needs in the building. The main function of the chiller is refrigeration. Through the circulation of refrigerant, heat is transferred from the inside of the building to the external environment. The refrigerant can be conventional refrigerants such as R410a, R134a, R407C and R22, or other heat exchange media such as high-speed airflow and low-temperature clean water.

[0003] In the existing chillers, the heat exchange components and the shell of the chiller are designed separately. The shell is used to store clean water that is cooled or to be cooled, and the heat exchange components are used to provide a cooling environment. The two are connected by pipes. The clean water circulates between the heat exchange components and the storage components. During the flow of clean water, pipe joints and other positions are prone to deformation or even leakage due to the large temperature change of the clean water inside. In addition, these connected pipes will come into contact with the outside air to produce passive heat exchange and condensate water, resulting in a certain degree of heat absorption and temperature rise of the cooled cold water, and the condensate water will cause corrosion of the components. Installing a heat insulation sleeve on the outside of the pipe will affect the inspection and repair of the leakage points of the pipe fittings, avoiding subsequent maintenance. In view of this, a shell component and a chiller for a chiller are provided. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a shell assembly for a water chiller and a water chiller.

[0005] The technical solution adopted to solve the above technical problems is:

[0006] A housing assembly for a chiller comprises a frame, and further comprises: a housing fixed to the frame;

[0007] The housing comprises a main body, wherein a partition is built into the main body, wherein the partition divides the internal space of the main body into an independent air passage cavity and a water storage cavity, and a middle box is provided in the middle of the partition;

[0008] A water distribution pipe running through the side wall of the middle box, the water distribution pipe is arranged in parallel in the air passage cavity, the water distribution pipe includes a plurality of branch pipes, and the branch pipes connect the middle box with the water storage cavity via the water distribution pipe;

[0009] A water distribution piece is provided through the partition, the water distribution piece is sleeved outside the branch pipe and forms an annular gap between the outer wall of the branch pipe, and the branch pipe is provided through the side wall of the water distribution piece;

[0010] An air return pipe, one end of which extends to the lowest point of the annular gap, and the other end of which penetrates the side wall of the main body and extends to the external space;

[0011] A fan is fixed to the side wall of the main body, and the fan provides a continuous airflow to the air passage cavity, and the gas in the air passage cavity is discharged through an air return pipe.

[0012] When in use, the water storage chamber is filled with clean water, and the clean water in the water storage chamber is sent to the middle box and flows back to the water storage chamber through the water distribution pipe and the branch pipe. During the flow, it will flow through the wind cavity position. The fan generates continuous airflow in the wind cavity, which can dissipate heat and cool the clean water in the water distribution pipe and the branch pipe, so that the temperature of the clean water in the water storage chamber gradually decreases. In order to improve the cooling efficiency, multiple branch pipes are provided, and water distribution parts are provided on the outside of the branch pipes to form an annular gap wrapping the branch pipes. The airflow blown into the wind cavity by the fan will pass through the annular gap and be discharged from the return air pipe. The branch pipe and the water distribution parts have a large surface area and thermal conductivity, and constitute a long wind path, which increases the effective contact area and contact time between the airflow and the clean water, so that the temperature of the clean water drops rapidly during the flow.

[0013] Furthermore, the branch pipe is designed as a flexible spiral structure, and the water distribution component includes a connecting ring, a telescopic ring and a bottom plate. The connecting ring is fixedly connected to the partition, the branch pipe passes through the center of the bottom plate and is fixed to the bottom plate, and the telescopic ring is installed between the connecting ring and the bottom plate and can be telescoped synchronously with the branch pipe.

[0014] Through the above technical solution, in order to meet the requirements of quickly generating cold water, the branch pipe is designed to be retractable. While the fan generates a large wind pressure, the large clean water flow rate can be used to impact and straighten the branch pipe. With the elastic telescopic ring design, the water distribution piece can extend with the branch pipe, and the water distribution piece can penetrate into a deeper water surface depth, further improving the heat exchange efficiency under high load conditions.

[0015] Furthermore, the return air pipe is arranged as a spiral pipe at one end inside the water distribution piece, the telescopic ring is a separation sleeve, the separation sleeve is fixed to the outer wall of the spiral pipe and forms a complete annular structure, the separation sleeve is made of elastic telescopic material, and the spiral pipe is fixedly connected to the connecting ring and the bottom plate respectively.

[0016] Through the above technical scheme, the elasticity of the spiral tube is utilized. Under high power conditions, the spiral tube cooperates with the separation sleeve to stretch to adapt to the elongated state of the branch pipe. Under low power conditions, the branch pipe is in a shortened state, and the spiral tube rebounds to drive the separation sleeve to contract, thereby preventing the separation sleeve from expanding all the time and causing rupture. Elastic support can also be provided to prevent the separation sleeve from being pressed against the outer wall of the branch pipe due to water pressure, resulting in poor air flow.

[0017] Furthermore, the telescopic ring comprises an outer sliding sleeve 1, an inner sliding sleeve and an outer sliding sleeve 2, and the outer sliding sleeve 1 and the outer sliding sleeve 2 are arranged on the outside of the inner sliding sleeve.

[0018] Through the above technical solution, the telescopic ring is designed into a solid multi-layer sleeve structure, which can resist water pressure, does not require spiral tubes for support, reduces manufacturing difficulty, and can withstand greater wind pressure, ensuring service life in an environment where the fan frequently operates at high power.

[0019] Furthermore, a valve body is installed at one end of the return air pipe extending through the side wall of the main body to the external space. The return air pipe is designed to penetrate the valve body, and a through hole is provided at the main body corresponding to the valve body, and the valve body can control the opening and closing of the through hole.

[0020] Through the above technical solution, when the valve body is closed, the air can only flow out of the casing through the return air pipe. At this time, as long as the wind pressure of the fan is increased, the water distribution parts and branch pipes will be extended. When the valve body is opened, most of the air can flow out directly through the through holes. It can adapt to frequently changing usage scenarios, avoid frequent contraction of the water distribution parts and branch pipes caused by fluctuations in the fan wind pressure, and protect the structural stability of the water distribution parts and branch pipes.

[0021] Furthermore, a plurality of guide plates are installed on one side of the partition plate located at the air passage cavity, and the height of the guide plates located at the inner side of the middle box gradually decreases from the middle to both sides.

[0022] Through the above technical scheme, the contact area between the clean water in the middle box and the air passing through the air cavity can be increased to assist in heat dissipation. The clean water entering the middle box can also be evenly distributed and wave suppressed to reduce impact and improve heat dissipation efficiency.

[0023] Furthermore, the guide plates are arranged equidistantly, the water distribution pipes are located in the interval spaces between the guide plates, the guide plates are designed with their tops tilted toward the fan, and the guide plates located in the air cavity gradually increase in height from the middle to both sides.

[0024] Through the above technical scheme, the inclined guide plate can be used to guide the airflow at different positions in the air cavity to different water distribution pipes to avoid heat interference between the water distribution pipes. The airflow can also be evenly dispersed to dissipate heat for different water distribution pipes separately. The water distribution parts can be used to reduce the diameter to increase the gas flow rate and improve the heat dissipation efficiency.

[0025] A chiller, wherein a water inlet pipe group connected to a middle box is fixedly installed through the side wall of the shell, and a water outlet pipe group connected to a water storage cavity is installed at the bottom of the shell.

[0026] Through the above technical solution, when in use, the water inlet pipe group supplies water to the middle box, and the water outlet pipe group discharges clean water out of the water storage chamber. Multiple water outlet pipe groups are provided and one of them is selected to be connected to the water inlet pipe group, so that the simultaneous work of clean water replenishment, circulating cooling and cold water output can be carried out.

[0027] Furthermore, a main exhaust pipe connected to the air passage cavity is installed at the height of the partition, and a sewage pipe is installed at the height of the bottom surface of the water storage cavity on the outer shell.

[0028] Through the above technical solution, the main exhaust pipe is installed at the exhaust position to ensure that the exhausted hot air is uniformly recovered, which can be used for waste heat recovery. It can also avoid the temperature increase in the workshop causing the main body to be in a high temperature environment and cause low refrigeration efficiency. The drain pipe can quickly empty the outer shell during cleaning.

[0029] Furthermore, it includes a plate heat exchanger and a storage tank, a circulation pipe group is provided between the plate heat exchanger and the main body, the liquid in the water storage cavity enters the plate heat exchanger through the circulation pipe group and returns to the middle box through the circulation pipe group, and the storage tank is built with heat exchange medium.

[0030] Through the above technical solution, in order to output different heat exchange media, cold water can be transported to the plate heat exchanger position to cool down the special heat exchange medium in the storage tank, and then the heat exchange medium can be used to cool down special equipment. For example, for equipment that cannot come into contact with water, cooling oil can be used as an intermediate heat exchange medium for cooling, and for equipment that cannot come into contact with liquid, gas can be used as an intermediate heat exchange medium for cooling, which is more adaptable.

[0031] The beneficial effects of the present invention are as follows:

[0032] (1) The present invention improves the shell. In the chiller, the shell itself, which is a cold water container, can only provide a basic cold water storage function. After the shell is partitioned by the partition, a cooling and heat exchange space can be provided. With the help of the water distribution pipe to disperse the clean water and the entry of the external cooling medium, the clean water can be cooled in the process of circulating in the shell without being led to the outside of the shell, so that the clean water can be efficiently cooled.

[0033] (2) The present invention uses a deformable water divider and air return pipe through the design of the water divider and air return pipe. Under high load conditions, the increase in circulating water pressure and air pressure can utilize the impact force generated by the increase in internal pressure and flow to make the water divider and air return pipe in a contracted state to extend autonomously and then be inserted to a distance below the clean water level of the water storage chamber, thereby increasing the effective heat exchange contact area. Under low load conditions, the buoyancy of water and its own deformation storage force can be utilized to reset the pipe, which is highly practical.

[0034] (3) The present invention improves the clean water output method. When used in a refrigeration unit, the cold water can be directly output through the water outlet pipe group, or a combination of a plate heat exchanger and a storage tank can be used to output the cold source to the outside using the intermediate heat exchange medium to meet the cooling requirements of different equipment. In addition, by improving the structure of the water outlet pipe group and cooperating with the water inlet pipe group, the clean water replenishment, circulating cooling and cold water output can be carried out simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic cross-sectional view of a housing assembly of the present invention from a main viewing angle;

[0036] Figure 2 is a schematic cross-sectional side view of a housing assembly of the present invention;

[0037] Figure 3 It is a schematic diagram of the positions of the middle box, the partition and the water distribution member of the present invention;

[0038] Figure 4 It is a schematic diagram of the structure between the water distribution pipe, the water distribution piece and the air return pipe of the present invention;

[0039] Figure 5 yes Figure 2 An enlarged schematic diagram of the return air pipe, valve body and main exhaust pipe at A in the middle;

[0040] Figure 6 It is a schematic diagram of one structure between the water distribution member and the air return pipe of the present invention;

[0041] Figure 7 It is a schematic diagram of one structure between the water distribution member and the air return pipe of the present invention;

[0042] Figure 8 It is a schematic diagram of one structure between the water distribution member and the air return pipe of the present invention;

[0043] Fig. 9 It is a schematic diagram of the structure of the housing assembly and its accessories of the present invention;

[0044] Fig.10 It is a schematic diagram of the state of the housing assembly of the present invention being used in a chiller;

[0045] Fig.11 It is a schematic diagram of the state of the shell assembly of the present invention being used in a chiller.

[0046] Figure numerals: 1. outer shell; 11. main body; 12. middle box; 13. partition; 14. guide plate; 15. air chamber; 16. water distribution pipe; 161. branch pipe; 17. water distribution piece; 171. connecting ring; 172. partition sleeve; 173. bottom plate; 174. outer sleeve one; 175. inner sleeve; 176. outer sleeve two; 18. water storage chamber; 19. return air pipe; 191. spiral tube; 192. valve body; 2. fan; 3. water inlet pipe group; 4. water outlet pipe group; 5. rack; 6. plate heat exchanger; 7. storage tank; 8. circulation pipe group; 9. main exhaust pipe; 10. sewage pipe. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] like Figure 1 - Fig.11 As shown, this embodiment provides a shell assembly for a chiller, including a frame 5, the frame 5 provides an overhead installation space to avoid installation and maintenance, and also includes: a housing 1 fixed on the frame 5;

[0049] For the housing 1, refer to Figure 1 The housing 1 includes a main body 11, which is a thick-walled hollow box. The thick wall can be used for heat insulation, and the hollow part can provide a space for accommodating clean water. The main body 11 is equipped with a partition 13, which divides the internal space of the main body 11 into an independent air chamber 15 and a water storage chamber 18. The air chamber 15 is located above the water storage chamber 18 and is used to provide a cooling and heat exchange space. A middle box 12 is provided in the middle of the partition 13. The middle box 12 serves as a relay space. Clean water entering from the outside will first enter the middle box 12 and then enter the water storage chamber 18.

[0050] For the water distribution pipe 16, refer to Figure 2 and Figure 4 The water distribution pipe 16 passes through the side wall of the middle box 12. The water distribution pipe 16 adopts a thin-walled metal pipe, and the water distribution pipe 16 is arranged in parallel in the air passage cavity 15, and can contact with the external cooling medium in the air passage cavity 15 to perform efficient heat exchange and cooling. The water distribution pipe 16 includes a plurality of branch pipes 161. At the same time, the branch pipes 161 connect the middle box 12 with the water storage cavity 18 via the water distribution pipe 16, and can disperse the clean water in the middle box 12 and spray it downward, and mix it with the clean water inside the water storage cavity 18, so that the cooled clean water can be dispersed into the whole clean water, so that the clean water in the water storage cavity 18 can be cooled evenly;

[0051] For the water distribution member 17, refer to Figure 4 and Figure 6The water distribution member 17 is arranged through the partition 13. The openings on the partition 13 are divided into multiple rows in the front and rear, and are arranged in a staggered manner left and right. A plurality of water distribution members 17 corresponding to the number of branch pipes 161 can be installed. The water distribution member 17 is a cylindrical structure with an opening upward. The water distribution member 17 is sleeved on the outside of the branch pipe 161 and forms an annular gap with the outer wall of the branch pipe 161. The annular gap opens upward and is used to receive the cooling medium entering from above. The branch pipe 161 is arranged through the side wall of the water distribution member 17, so that the clean water in the branch pipe 161 can flow out of the water distribution member 17 smoothly, while the cooling medium above will be blocked by the water distribution member 17, which plays a separation role and prevents the clean water and the cooling medium from mixing with each other;

[0052] For the return air pipe 19, refer to Figure 6 , one end of the return air pipe 19 extends to the lowest point of the annular gap. This design allows the cooling medium entering from the top to flow all the way to the lowest point of the branch pipe 161 and then be recovered and discharged, making full use of the length of the branch pipe 161 for heat exchange. The other end of the return air pipe 19 passes through the side wall of the main body 11 and extends to the external space, so that the cooling medium after absorbing heat can be discharged in a centralized manner, and waste heat can be recovered, or it can be uniformly discharged to the outside at a position far away from the shell 1, avoiding the cooling medium with heat being directly discharged around the shell 1, preventing the shell 1 from causing the internal clean water to heat up due to the increase in the external temperature, and facilitating subsequent processing;

[0053] For fan 2, refer to Figure 2 The fan 2 is fixed to the top side wall of the main body 11, and generates airflow from top to bottom. The fan 2 provides continuous airflow to the air chamber 15, and the airflow is the cooling medium of the clean water, which has low cost. Moreover, after the airflow completes the contact heat exchange with the water distribution pipe 16 and the branch pipe 161 respectively, the gas in the air chamber 15 is discharged through the return pipe 19. Similarly, the fan 2 can be replaced by a compressor, and the cooling medium can also be replaced by common refrigerants such as R410a, R134a, R407C and R22. However, in order to avoid refrigerant leakage, the return pipe 19 and the inlet end of the compressor need to be sealed and connected to form a closed loop with the air chamber 15, which has high cost. At the same time, in order to avoid the outer wall of the water distribution component 17 from freezing and causing poor heat exchange, it is necessary to control the cooling temperature not lower than the freezing point, add substances to the clean water to lower the freezing point, or increase the deicing structure of the outer wall of the water distribution component 17. The shell 1 protects these heat exchange structures inside, which can ensure stable operation.

[0054] The practical problem solved by this solution is: how to provide a more flexible and efficient heat dissipation structure, reduce the passive heat exchange and condensed water generated by the cold water transportation between the heat exchange component and the storage component, and flexibly generate the required amount of cold water in a short time according to the cost. The specific implementation method is to use the airflow as a medium to dissipate the heat of the clean water, change the contact mode of the clean water and the airflow, the airflow and the water flow make the first contact at the position of the water distribution pipe 16, use the outer wall of the water distribution pipe 16 for the first heat exchange and cooling, and then use the combination of multiple branch pipes 161 and water distribution parts 17 to transfer the overall flowing water to the heat exchanger. The water is dispersed and in the process of flowing downward, it has secondary contact heat exchange with the airflow in the water distribution member 17. The coaxially arranged branch pipe 161 and the water distribution member 17 can increase the contact time and contact area between the airflow and the clean water inside the branch pipe 161. At the same time, because the water distribution member 17 is inserted downward into the water, the airflow can use the outer wall of the water distribution member 17 to synchronously contact heat exchange with the clean water inside the water storage chamber 18, and make full use of the space of the device to increase the contact area between the airflow and the water flow, so as to perform more efficient heat exchange and cooling. The heat exchange process is carried out in the shell 1, and the cold water and the airflow are both in the shell 1, and no transportation is required during the preparation process.

[0055] In a further embodiment, referring to Figure 7 In order to meet the use requirements of quickly generating cold water, the branch pipe 161 is designed to be a flexible spiral structure, and the branch pipe 161 is designed to be retractable. The water distribution member 17 includes a connecting ring 171, a retractable ring and a bottom plate 173. The connecting ring 171 is fixedly connected to the partition 13, and the branch pipe 161 passes through the center of the bottom plate 173 and is fixed to the bottom plate 173. The retractable ring is installed between the connecting ring 171 and the bottom plate 173 and can be retracted synchronously with the branch pipe 161. When working at high load, the circulation flow rate of the clean water and the air flow speed generated by the fan 2 will increase. When the fan 2 generates a large wind pressure, the branch pipe 161 is impacted and straightened by the large clean water flow rate. With the design of the elastic retractable ring, the water distribution member 17 can be extended with the branch pipe 161, so that the flow path of the air flow is straighter and the contact distance with the branch pipe 161 is longer, providing a better heat exchange environment. At the same time, the water distribution member 17 can penetrate into a deeper water surface depth, further increasing the contact area and heat exchange efficiency under high load conditions.

[0056] In a further embodiment, referring to Figure 7The return air pipe 19 is located at one end of the inner side of the water distribution member 17 and is configured as a spiral tube 191. The spiral tube 191 can be elastically retracted and can form an annular support structure. The retractable ring is a separation sleeve 172. The separation sleeve 172 is an elastic waterproof sheet structure that can separate water and gas and retract. The separation sleeve 172 is fixed to the outer wall of the spiral tube 191 and forms a complete annular structure. By utilizing the elasticity of the spiral tube 191, under high wind pressure, the spiral tube 191 cooperates with the separation sleeve 172 to extend to adapt to the elongated state of the branch pipe 161. The separation sleeve 172 is made of an elastic and retractable material and can be inserted into a deeper position below the clear water level of the water storage chamber 18 to increase the heat exchange contact area. Under low power conditions, the branch pipe 161 is in a shortened state, and the rebound of the spiral tube 191 drives the branch pipe 161 to extend. When the spacer sleeve 172 contracts, the spiral tube 191 can elastically support the relaxed spacer sleeve 172 to prevent the spacer sleeve 172 from being pressed against the outer wall of the branch pipe 161 due to water pressure, resulting in poor air flow. The telescopic design of the spiral tube 191 can always keep the bottom opening of the spiral tube 191 located at the bottom plate 173. When condensed water is generated, the condensed water can be discharged along with the air flow to avoid accumulation of condensed water in the water distribution part 17, to prevent condensed water from corroding internal components, and to avoid accumulation of condensed water leading to a reduction in effective heat exchange contact area. The spiral tube 191 is fixedly connected to the connecting ring 171 and the bottom plate 173 respectively to form a detachable component. If it is damaged during use, it can be replaced separately. The connecting ring 171 and the spacer 13 can be connected by threads or other sealing methods.

[0057] In a further embodiment, referring to Figure 8 In order to adapt to the high-intensity wind pressure environment, the telescopic ring is designed to be a solid multi-layer sleeve structure. The telescopic ring includes an outer sleeve 174, an inner sleeve 175 and an outer sleeve 2 176. The hard structure can adapt to high-intensity heat dissipation scenarios and can withstand greater wind pressure. In the environment where the fan 2 frequently works at high power, the service life is guaranteed. At the same time, the outer sleeve 174 and the outer sleeve 2 176 are sleeved on the outside of the inner sleeve 175. The telescopic ring is designed to be a solid multi-layer sleeve structure, which can resist water pressure and does not require support from the spiral tube 191, thereby reducing the manufacturing difficulty. Similarly, a spring or other elastic reset member can be designed to assist the telescopic ring in contracting when the wind pressure decreases. In places with long maintenance cycles or maintenance-free, in order to avoid elastic fatigue of the elastic reset member, the elastic reset member can also be not used, and only the buoyancy of the water in the water storage chamber 18 can be used for reset. The specific situation can be selected according to the usage scenario.

[0058] In a further embodiment, referring to Figure 2 and Figure 5The return air pipe 19 runs through the side wall of the main body 11 and extends to one end of the external space, and a valve body 192 is installed. The return air pipe 19 runs through the valve body 192 design, that is, even if the valve body 192 is closed, the return air pipe 19 can still circulate inside and discharge the gas through the wind cavity 15. A through hole is provided at the main body 11 corresponding to the valve body 192, and the valve body 192 can control the opening and closing of the through hole. When the valve body 192 is closed, the air can only flow out of the housing 1 through the return air pipe 19. At this time, as long as the wind pressure of the fan 2 is increased, the water distribution member 17 and the branch pipe 161 will extend. When the valve body 192 is opened, most of the air can flow out directly through the through hole. The wind pressure increases in a short time and will be directly discharged from the through hole. It can adapt to the use scenarios with frequent changes, avoid the frequent expansion and contraction of the water distribution member 17 and the branch pipe 161 caused by the wind pressure fluctuation of the fan 2, and protect the structural stability of the water distribution member 17 and the branch pipe 161.

[0059] In a further embodiment, referring to Figure 1 and Figure 3 , the partition 13 is located on one side of the air passage cavity 15 and is equipped with multiple guide plates 14. The guide plates 14 penetrate the vertical side walls of the middle box 12 and extend into the air passage cavity 15. A portion of the guide plates 14 is in direct contact with the clean water in the middle box 12, and a portion of the guide plates 14 is in direct contact with the airflow in the air passage cavity 15. This can increase the contact area between the clean water in the middle box 12 and the air in the air passage cavity 15 to assist in heat dissipation. It should be emphasized that the portion of the guide plates 14 located on the inner side of the middle box 12 gradually decreases in height from the middle to both sides, which can increase the contact area between the clean water in the middle box 12 and the air in the air passage cavity 15 to assist in heat dissipation. When the clean water enters the middle box 12 from above, it will be blocked to a certain extent by the guide plates 14 in the process of flowing to both sides. This can evenly distribute and suppress waves of the clean water entering the middle box 12. Because the water distribution pipe 16 and the guide plates 14 are arranged at intervals, they flow into different water distribution pipes 16, reducing impact and improving heat dissipation efficiency.

[0060] In a further embodiment, referring to Figure 2 The guide plates 14 are arranged equidistantly, and the water distribution pipes 16 are located in the interval space between the guide plates 14. The inclined guide plates 14 can be used to guide the airflows at different positions in the air cavity 15 to different water distribution pipes 16 to avoid heat interference between the water distribution pipes 16. The guide plates 14 are designed to be inclined at the top toward the fan 2, so that the airflow can be evenly dispersed into multiple parts, and different water distribution pipes 16 can be cooled separately. The part of the guide plate 14 located in the air cavity 15 gradually increases in height from the middle to both sides, so as to form a relatively closed downward channel, and cooperate with the water distribution member 17 to reduce the diameter of the airflow and speed up the airflow. The increased gas flow rate can improve the heat dissipation efficiency of the branch pipe 161.

[0061] A chiller, referring to Fig. 9 , Fig.10 and Fig.11When the shell 1 is used in a chiller, a water inlet pipe group 3 connected to the middle box 12 is fixedly installed through the side wall of the shell 1, and a water outlet pipe group 4 connected to the water storage chamber 18 is installed at the bottom of the shell 1. The water inlet pipe group 3 supplies water to the middle box 12, and the water outlet pipe group 4 discharges clean water from the water storage chamber 18. Specifically, when in use, if clean water needs to be supplemented, the water inlet pipe group 3 directly supplies water to the middle box 12;

[0062] If it is necessary to cool the clean water in the water storage chamber 18, the water outlet pipe group 4 is provided with at least two outlets, and one of them is connected to the water inlet pipe group 3, the clean water is led out of the water storage chamber 18 from the water outlet pipe group 4, and filled into the water inlet pipe group 3, and then flows back to the water storage chamber 18 after being cooled by the fan 2, so that the clean water in the water storage chamber 18 can be circulated and cooled; if cold water needs to be output for cooling external equipment, the water outlet pipe group 4 discharges the cooled clean water from the water storage chamber 18; similarly, if it is necessary to output cold water while replenishing clean water to maintain the total water volume, a three-way valve can be added at the connection between the water inlet pipe group 3 and the water outlet pipe group 4, so as to simultaneously perform the work of clean water replenishment, circulation cooling and cold water output.

[0063] In a further embodiment, referring to Fig. 9 A main exhaust pipe 9 connected to the air passage chamber 15 is installed at the height of the partition 13. The main exhaust pipe 9 is installed at the exhaust position to ensure that the exhausted hot air is uniformly recovered, which can be used for waste heat recovery. It can also avoid the temperature increase in the workshop causing the main body 11 to be in a high temperature environment and cause low refrigeration efficiency. A sewage pipe 10 is installed at the bottom height of the water storage chamber 18 of the outer shell 1. The sewage pipe 10 can quickly empty the outer shell 1 when cleaning the water storage chamber 18. It should be noted that when cleaning the internal space of the water storage chamber 18, water is dispersedly sprayed downward from the branch pipe 161. By increasing the spraying points, the entire water storage chamber 18 can be evenly cleaned, thereby improving the cleaning efficiency.

[0064] In a further embodiment, referring to Fig.10 and Fig.11 , including a plate heat exchanger 6 and a storage tank 7. A circulation pipe group 8 is provided between the plate heat exchanger 6 and the main body 11. A heat exchange medium is built in the storage tank 7. Cold water in the water storage chamber 18 enters the plate heat exchanger 6 through the circulation pipe group 8 to cool the special heat exchange medium in the storage tank 7. The cold water returns to the middle box 12 through the circulation pipe group 8. The storage tank 7 can store different heat exchange media, such as cooling oil or inert gas. These intermediate heat exchange media can meet the cooling needs of different special equipment. For example, for equipment that cannot contact water, in order to avoid moisture corroding the components of the cooled equipment, cooling oil can be used as an intermediate heat exchange medium for cooling. For equipment that cannot contact liquid, in order to avoid the danger caused by leakage in clear water cooling, inert gas can be used as an intermediate heat exchange medium for cooling, which has stronger adaptability and higher safety.

[0065] The working principle of this embodiment is as follows:

[0066] When in use, the water storage chamber 18 is filled with clean water, and the clean water in the water storage chamber 18 is sent to the middle box 12 and flows back to the water storage chamber 18 through the water distribution pipe 16 and the branch pipe 161. During the flow, the clean water will flow through the wind chamber 15. The fan 2 generates a continuous airflow in the wind chamber 15, which can dissipate heat and cool the clean water in the water distribution pipe 16 and the branch pipe 161, so that the temperature of the clean water in the water storage chamber 18 is gradually reduced.

[0067] In order to improve the cooling efficiency, multiple branch pipes 161 are provided, and a water distribution piece 17 is provided outside the branch pipe 161 to form an annular gap that wraps the branch pipe 161. The airflow blown into the air cavity 15 by the fan 2 will pass through the annular gap and then be discharged from the return air pipe 19. The branch pipe 161 and the water distribution piece 17 both have a large surface area and heat conduction capacity, and form a long air flow path, which increases the effective contact area and contact time between the airflow and the clean water, so that the temperature of the clean water is quickly reduced during the flow;

[0068] Since the water distribution pipe 16 and the branch pipe 161 are in contact with water in the air, condensed water will be generated, and the condensed water will flow into the annular gap and accumulate, affecting the actual space size of the annular gap. The end of the return air pipe 19 will be extended to the bottom of the water distribution member 17, so that the condensed water can be discharged together with the exhaust, avoiding problems such as component corrosion and insufficient heat exchange contact area caused by internal water accumulation;

[0069] When the housing 1 is used in a water chiller to cool peripheral equipment, cold water can be directly output for cooling, or an intermediate heat exchange medium can be output for targeted cooling to meet the cooling requirements of different equipment.

[0070] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A housing assembly for a chiller, comprising a frame (5), characterized in that: Also includes: A housing (1) fixed on the frame (5); The housing (1) comprises a main body (11), the main body (11) having a built-in partition (13), the partition (13) dividing the internal space of the main body (11) into an independent air passage cavity (15) and a water storage cavity (18), the air passage cavity (15) and the water storage cavity (18) being arranged in an up-and-down stack, and a middle box (12) being provided in the middle of the partition (13); a water distribution pipe (16) penetrating the side wall of the middle box (12), the water distribution pipe (16) being arranged in parallel in the air passage cavity (15), the water distribution pipe (16) comprising a plurality of branch pipes (161), the branch pipes (161) connecting the middle box (12) with the water storage cavity (18) via the water distribution pipe (16); a water distribution member (17) penetrating the partition plate (13); the water distribution member (17) is sleeved outside the branch pipe (161) and forms an annular gap with the outer wall of the branch pipe (161); the branch pipe (161) is penetrating the side wall of the water distribution member (17); An air return pipe (19), one end of the air return pipe (19) extending to the lowest point of the annular gap, and the other end of the air return pipe (19) penetrating through the side wall of the main body (11) and extending to the external space; a fan (2) fixed to a side wall of the main body (11), the fan (2) providing a continuous airflow to the air passage cavity (15), the gas in the air passage cavity (15) being discharged via an air return pipe (19); The partition plate (13) is located on one side of the air passage cavity (15) and is provided with a plurality of guide plates (14), wherein the guide plates (14) located on the inner side of the middle box (12) gradually decrease in height from the middle to both sides; The guide plates (14) are arranged at equal intervals, the water distribution pipe (16) is located in the interval space between the guide plates (14), the guide plates (14) are designed to be inclined at the top toward the fan (2), and the portion of the guide plates (14) located in the air cavity (15) gradually increases in height from the middle to both sides.

2. The shell assembly for a chiller according to claim 1, characterized in that: The branch pipe (161) is designed as a flexible spiral structure. The water distribution member (17) comprises a connecting ring (171), a telescopic ring and a bottom plate (173). The connecting ring (171) is fixedly connected to the partition plate (13). The branch pipe (161) passes through the center of the bottom plate (173) and is fixed to the bottom plate (173). The telescopic ring is installed between the connecting ring (171) and the bottom plate (173) and can be synchronously telescoped with the branch pipe (161).

3. The shell assembly for a chiller according to claim 2, characterized in that: The return air pipe (19) is located at one end of the inner side of the water distribution member (17) and is arranged as a spiral pipe (191); the telescopic ring is a separation sleeve (172); the separation sleeve (172) is fixed to the outer wall of the spiral pipe (191) to form a complete ring structure; the separation sleeve (172) is made of elastic and telescopic material; the spiral pipe (191) is fixedly connected to the connecting ring (171) and the bottom plate (173) respectively.

4. The shell assembly for a chiller according to claim 2, characterized in that: The telescopic ring comprises an outer sliding sleeve 1 (174), an inner sliding sleeve (175) and an outer sliding sleeve 2 (176), wherein the outer sliding sleeve 1 (174) and the outer sliding sleeve 2 (176) are sleeved on the outside of the inner sliding sleeve (175).

5. The housing assembly for a chiller according to claim 1, characterized in that: The return air pipe (19) passes through the side wall of the main body (11) and extends to one end of the external space, and a valve body (192) is installed thereon. The return air pipe (19) passes through the valve body (192), and a through hole is provided on the main body (11) corresponding to the valve body (192). The valve body (192) can control the opening and closing of the through hole.

6. A water chiller, using the shell assembly for a water chiller according to claim 1, characterized in that: A water inlet pipe group (3) communicating with the middle box (12) is fixedly installed through the side wall of the shell (1), and a water outlet pipe group (4) communicating with the water storage chamber (18) is installed at the bottom of the shell (1).

7. The chiller according to claim 6, characterized in that: A main exhaust pipe (9) connected to the air passage cavity (15) is installed at the height of the partition (13), and a sewage discharge pipe (10) is installed at the height of the bottom surface of the water storage cavity (18) on the outer shell (1).

8. The chiller according to claim 7, characterized in that: It comprises a plate heat exchanger (6) and a storage tank (7), wherein a circulation pipe group (8) is provided between the plate heat exchanger (6) and the main body (11), the liquid in the water storage chamber (18) enters the plate heat exchanger (6) through the circulation pipe group (8) and returns to the middle tank (12) via the circulation pipe group (8), and a heat exchange medium is built in the storage tank (7).

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