A water inlet and outlet device for a refrigeration system

Abstract

This utility model discloses a water injection and drainage device for a refrigeration system. The water tank has a water inlet, a water outlet, and a water supply port. In conjunction with an external diversion unit, it can not only replenish water to the water tank, but also drain water from the water tank to the outside and circulate internally. When new coolant needs to be added, it can be added directly through the water inlet to keep the liquid level in the chiller at a suitable level for processing and use. It avoids the impact of liquid reduction on the heating and cooling of the device, thus improving processing efficiency. There is no need to open the system pipeline or disassemble the main unit, which simplifies daily maintenance. A closed loop is formed between the water outlet, the circulation side of the diversion unit, and the water inlet, which does not affect normal refrigeration operation. The drain side can assist in replacing the coolant. When the coolant becomes old or turbid during circulation, the liquid can be quickly drained and replaced to ensure refrigeration efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of refrigeration system technology and relates to a water injection and drainage device for refrigeration systems. Background Technology

[0002] Coolants are commonly used in the temperature control industry for injection molds. They can control the temperature during plastic molding, accelerating the molding process and improving production efficiency. Later, with the continuous improvement of manufacturing process requirements, the demand for temperature control in molds or reaction vessels became increasingly complex, subtle, and precise. To adapt to the development of industries such as plastics, sponges, composite materials, and pharmaceuticals, coolants utilize refrigeration systems through compressors, condensers, evaporators, and capillaries to absorb and release heat.

[0003] As the usage time increases, the performance of the coolant deteriorates and dust and debris are generated, which introduces instability into the equipment. Therefore, it is necessary to replace the coolant or maintain and repair the equipment. However, chillers are sometimes integrated into other units, which makes disassembly inconvenient when replacing the coolant and maintenance and repair of the cooling system inconvenient. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the prior art, the performance of the coolant deteriorates and dust and debris are generated, which brings instability to the equipment. Therefore, it is necessary to replace the coolant or maintain the equipment. However, chillers are sometimes integrated into other units, which makes disassembly inconvenient when replacing the coolant and maintenance of the cooling system inconvenient. This invention provides a filling and draining device for a refrigeration system. The automatic filling and draining device can efficiently and simply replace the coolant, solving the problems of inconvenience and low efficiency in equipment maintenance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A water supply and drainage device for a refrigeration system includes a water tank, wherein the water tank has a water inlet, a water outlet and a water supply port;

[0007] The water inlet is used to connect to an external water supply port;

[0008] The outlet is connected to the diversion unit, which is provided with a circulation side and a drainage side. The circulation side is connected to the inlet, and the drainage side is connected to the external drainage end.

[0009] The water tank is equipped with heat dissipation components.

[0010] The further improvement of this utility model is as follows:

[0011] The water inlet is connected to a diaphragm pump, and the diaphragm pump is connected to an outer water inlet.

[0012] A first solenoid valve is installed at the water inlet.

[0013] A power pump is installed between the diversion unit and the outlet.

[0014] The diversion unit is a second solenoid valve, which is a two-position three-way solenoid valve.

[0015] A one-way valve is installed at the water inlet.

[0016] A temperature sensor is installed on the water tank.

[0017] A low liquid level sensor is installed at the top of the water tank.

[0018] A high liquid level sensor is installed at the top of the water tank.

[0019] The water tank is equipped with a pressure relief valve.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This utility model discloses a water injection and drainage device for a refrigeration system. The water tank has a water inlet, a water outlet, and a water supply port. Combined with an external distribution unit, it can both replenish the water tank and drain it from the external system, as well as circulate the internal system. When new coolant needs to be added, it is added directly through the water inlet, maintaining the chiller's liquid level at a suitable level for processing and use. This prevents the cooling and heating of the device from being affected by reduced liquid levels, improving processing efficiency. It eliminates the need to open system pipes or disassemble the main unit, simplifying daily maintenance. A closed-loop circulation circuit is formed between the water outlet, the circulation side of the distribution unit, and the water inlet, without affecting normal refrigeration operation. The drainage side can assist in replacing the coolant. When the coolant becomes aged or cloudy during circulation, liquid can be quickly drained for replacement to ensure refrigeration efficiency; or, if the temperature is too high, liquid can be automatically drained to maintain the outlet water temperature. This solves the problem that chillers are sometimes integrated into other units, making disassembly for coolant replacement inconvenient and hindering the maintenance of the cooling system. A heat dissipation component is also provided to cool the coolant as needed, ensuring that the coolant remains within a reasonable temperature range.

[0022] Furthermore, a check valve is installed at the water inlet to prevent backflow problems.

[0023] Furthermore, a temperature sensor is installed on the water tank to monitor the temperature in real time, preventing the coolant temperature from becoming too high and affecting normal cooling operation.

[0024] Furthermore, a low-level sensor and a high-level sensor are installed at the top of the water tank to detect the liquid level inside the tank and drain or refill the tank in a timely manner to prevent the liquid level from being too high or too low and affecting normal operation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the front view structure according to an embodiment of the present utility model.

[0027] Figure 2 This is a top view of the structure according to an embodiment of the present utility model.

[0028] Figure 3 This is a view of the water tank according to an embodiment of the present utility model.

[0029] Figure 4 This is a drainage principle diagram according to an embodiment of the present utility model.

[0030] Figure 5 This is a schematic diagram of the circulating water principle according to an embodiment of the present utility model.

[0031] Wherein: 1-Inlet; 2-Low level sensor; 3-Power pump; 4-Second solenoid valve; 5-High level sensor; 6-Water inlet; 7-Diaphragm; 8-Outlet; 9-Temperature sensor; 10-Pressure relief valve; 11-Outer water inlet; 12-Outer drain; 13-Heat sink; 14-Water tank; 15-Check valve; 16-First solenoid valve; Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The present invention will now be described in further detail with reference to the accompanying drawings:

[0039] See Figures 1 to 5 In production processes, chilled water is frequently required to rapidly cool materials and products for demolding and subsequent production steps. Over time, the circulating water accumulates dust and impurities, and the properties of the coolant change with temperature variations. Chillers are sometimes integrated into other units, making disassembly inconvenient. This invention discloses a water injection and drainage device for refrigeration systems, which avoids maintenance inconveniences and improves equipment stability.

[0040] During water circulation, water tank 14 is first filled with water. Cooling water is pumped into the tank via diaphragm pump 7 through water inlet 6. The first solenoid valve 16 is opened to inject coolant into water tank 14. Upon receiving an electrical signal, the high-level sensor 5 disconnects the first solenoid valve 16 to stop water injection. The power pump 3 is then turned on, and water is delivered from water tank 14 outlet 8 to the power pump 3, which then delivers the water to the inlet of the second solenoid valve 4 (the second solenoid valve 4 is a two-position three-way solenoid valve). The second solenoid valve 4 is placed on the circulating water side, allowing water to flow through the refrigeration system and load before returning to water tank 14 inlet 1. Inlet 1 has a check valve to prevent backflow.

[0041] When filling or draining water, if the water level in the water tank 14 is lower than the high level sensor 5, the first solenoid valve 16 is opened, and the diaphragm pump 7 pumps cooling water into the water tank 14 through the outer water inlet 11. When the temperature sensor 9 detects that the temperature is too high, the cooling radiator 13 is opened, and the circulation mode is stopped to start draining. When the water tank 14 needs to be drained, the second solenoid valve 4 is switched to the drain side, the power pump 3 is turned on, and water is discharged through the outer drain outlet 12.

[0042] Specifically, it includes:

[0043] This utility model discloses a water supply and drainage device for a refrigeration system, including a water tank 14, on which a water inlet 6, a water outlet 1, and a water outlet 8 are provided; the water inlet 6 is used to connect to an external water supply port; the water outlet 8 is connected to a diversion unit, on which a circulation side and a drainage side are provided, the circulation side is connected to the water inlet 1, and the drainage side is connected to an external drainage end; a heat sink 13 is provided on one side of the water tank 14.

[0044] Furthermore, the water inlet 6 is connected to the diaphragm pump 7, which is connected to the outer water inlet 11. A first solenoid valve 16 is installed at the water inlet 6. By controlling the first solenoid valve 16 and starting the diaphragm pump 7, cooling water is replenished.

[0045] Furthermore, the diversion unit is a second solenoid valve 4, which is a three-way solenoid valve. The outlet 8 is connected to the inlet of the power pump 3, the outlet of the power pump 3 is connected to the second solenoid valve 4, the drainage side of the second solenoid valve 4 is connected to the outer drain outlet 12, and the circulation side of the second solenoid valve 4 is connected to the inlet 1.

[0046] Furthermore, a one-way valve 15 is installed at the water inlet 1 to prevent backflow.

[0047] Furthermore, a temperature sensor 9 is installed on the water tank 14, and the heat sink 13 is a cooling fan. When the temperature is detected to be too high, the cooling fan is turned on and the direction of the two-position three-way valve at the water outlet is changed to drain the water. In addition, when the temperature sensor 9 detects an abnormal temperature, it can also drain the water at the same time.

[0048] Furthermore, a low level sensor 2 and a high level sensor 5 are installed at the upper end of the water tank 14. When the water level reaches the required level, the high level sensor 5 gives a feedback signal, which stops the water injection, closes the first solenoid valve 16, and simultaneously shuts down the diaphragm pump 7. During the drainage operation, the low level sensor 2 will give a feedback signal. After the drainage is completed, the low level sensor 2 will no longer give a feedback signal.

[0049] Furthermore, a pressure relief valve 10 is installed on the water tank 14, which can release pressure as needed to ensure safe use.

[0050] The working principle of this embodiment:

[0051] For cyclic operating conditions, see Figure 5 :

[0052] A water outlet 8 is provided on the outside of the water tank 14. The water outlet 8 is connected to the inlet of the power pump 3, and the outlet of the power pump 3 is connected to the inlet of the second solenoid valve 4. The outlet of the second solenoid valve 4 is divided into a drainage side and a circulation side. The circulation side is connected to the water tank inlet 1, and the water tank inlet 1 is provided with a one-way valve 15. Figure 3 As shown.

[0053] For water replenishment conditions, please refer to [link / reference]. Figure 2 :

[0054] Water tank 14 is equipped with a water inlet 6, and water inlet 6 is equipped with a solenoid valve 16, such as Figure 3 As shown, the first solenoid valve 16 is connected to the diaphragm pump 7, and the diaphragm pump 7 is connected to the outer water inlet 11, as follows. Figure 1 As shown.

[0055] For drainage conditions, please refer to [link / reference]. Figure 4 :

[0056] A water outlet 8 is provided on the outside of the water tank 14. The water outlet 8 is connected to the inlet of the power pump 3, and the outlet of the power pump 3 is connected to the inlet of the second solenoid valve 4. The outlet of the second solenoid valve 4 is switched to the drainage side, and the drainage side outlet of the second solenoid valve 4 is connected to the outer drain outlet 12. Figure 1 As shown.

[0057] When the high liquid level sensor 5 gives a feedback signal, it means that the water injection is over. The solenoid valve is closed to stop the water injection, and the diaphragm pump is also closed to stop the water injection. When the high liquid level sensor 5 does not give a feedback signal and the low liquid level sensor 2 gives a feedback signal, it is the drainage condition. The drainage condition is completed when the low liquid level sensor 2 no longer gives a feedback signal.

[0058] It should be noted that in this embodiment, the low liquid level sensor 2, the high liquid level sensor 5, and the temperature sensor 9 do not involve data processing; they are simply used for water level and temperature detection based on the structure of this embodiment. Existing sensors can meet the requirements of this structure.

[0059] This invention primarily addresses the issue of aging or cloudiness in the coolant during circulation, enabling rapid liquid drainage and replacement to maintain refrigeration efficiency; or automatically draining liquid when the temperature is too high to ensure the outlet water temperature. The water circuit design of this embodiment automatically replenishes the coolant in the internal pipes of the mold temperature controller, maintaining a suitable coolant level for easy processing and preventing reduced liquid levels from affecting the device's heating and cooling, thus improving processing efficiency.

[0060] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water injection / drainage device for a refrigeration system, characterized in that, Includes a water tank (14), on which a water inlet (6), a water outlet (1) and a water outlet (8) are provided; The water inlet (6) is used to connect to an external water supply port; The outlet (8) is connected to the diversion unit, and the diversion unit is provided with a circulation side and a drainage side. The circulation side is connected to the inlet (1), and the drainage side is connected to the external drainage end. The water tank (14) is equipped with a heat dissipation component (13).

2. The water injection and drainage device for a refrigeration system according to claim 1, characterized in that, The water inlet (6) is connected to the diaphragm pump (7), and the diaphragm pump (7) is connected to the outer water inlet (11).

3. A water injection and drainage device for a refrigeration system according to claim 2, characterized in that, A first solenoid valve (16) is installed at the water inlet (6).

4. A water injection and drainage device for a refrigeration system according to claim 1, characterized in that, A power pump (3) is installed between the diversion unit and the outlet (8).

5. A water injection / drainage device for a refrigeration system according to claim 4, characterized in that, The diversion unit is a second solenoid valve (4), which is a two-position three-way solenoid valve.

6. A water injection / drainage device for a refrigeration system according to claim 1, characterized in that, A one-way valve (15) is installed at the water inlet (1).

7. A water injection / drainage device for a refrigeration system according to claim 1, characterized in that, A temperature sensor (9) is installed on the water tank (14).

8. A water injection and drainage device for a refrigeration system according to claim 1, characterized in that, A low liquid level sensor (2) is installed at the upper end of the water tank (14).

9. A water injection and drainage device for a refrigeration system according to claim 1, characterized in that, A high liquid level sensor (5) is installed at the upper end of the water tank (14).

10. A water injection and drainage device for a refrigeration system according to claim 1, characterized in that, A pressure relief valve (10) is installed on the water tank (14).

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