Variable-frequency water chilling unit with natural cooling function

Abstract

The utility model provides a variable-frequency water chilling unit with a natural cooling function. The variable-frequency water chilling unit comprises a refrigerating unit and a water pump unit, a water outlet of the water pump unit is fixedly communicated with one end of a water supply main pipe, and the other end of the water supply main pipe is fixedly communicated with a water inlet of the refrigerating unit; a water outlet of the refrigerating unit is fixedly communicated with one end of a cooling main pipe, the other end of the cooling main pipe is fixedly communicated with a cooling pipeline water inlet of a cooled device, a cooling pipeline water outlet of the cooled device is fixedly communicated with one end of a water return pipe, and the other end of the water return pipe is fixedly communicated with a water return port of the water pump unit. The utility model relates to the technical field of refrigeration, in particular to a frequency conversion water chilling unit with a natural cooling function. In order to overcome the defects in the prior art, the variable-frequency water chilling unit with the natural cooling function is developed, the outdoor low-temperature environment is used for replacing a refrigerating unit to cool water, and energy consumption of the refrigerating unit is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a variable frequency chiller with natural cooling. Background Art

[0002] When the equipment is working, it usually generates high temperature. In order to ensure the normal operation of the equipment, the equipment needs to be cooled. At present, the mainstream method is to use cooling pipes to cool the equipment. Use a refrigeration unit to cool the water before entering the equipment cooling pipe.

[0003] Moreover, at present, the cooling of the equipment all year round relies on the operation of the refrigeration unit, which consumes a lot of energy. In autumn and winter, in order to ensure the normal operation of the equipment, the ambient temperature of the equipment is much higher than the outdoor temperature. If the outdoor low temperature environment can be used to cool the water instead of the refrigeration unit, the energy consumption of the refrigeration unit will be effectively reduced.

[0004] Therefore, in view of the above problems, a variable frequency chiller with natural cooling is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and develops a variable frequency chiller with natural cooling. The utility model relies on the outdoor low temperature environment to replace the refrigeration unit to cool the water, thereby effectively reducing the energy consumption of the refrigeration unit.

[0006] The technical solution of the utility model to solve the technical problem is as follows: the utility model provides a variable frequency chiller with natural cooling, including: a refrigeration unit and a water pump unit; the water outlet of the water pump unit is fixedly connected to one end of the water supply pipe, and the other end of the water supply pipe is fixedly connected to the water inlet of the refrigeration unit; the water outlet of the refrigeration unit is fixedly connected to one end of the cooling pipe, and the other end of the cooling pipe is fixedly connected to the water inlet of the cooling pipe of the device to be cooled, the cooling pipe outlet of the device to be cooled is fixedly connected to one end of the return pipe, and the other end of the return pipe is fixedly connected to the water return port of the water pump unit; the water supply pipe is fixedly connected to one end of the water distribution pipe, and the other end of the water distribution pipe is fixedly connected to the water inlet of the external radiator, the water outlet of the external radiator is fixedly connected to one end of the cooling pipe, and the other end of the cooling pipe is fixedly connected to the water inlet of the cooling pipe of the device to be cooled. By adopting an external radiator, the outdoor low temperature environment can be used to replace the refrigeration unit to cool the water, effectively reducing the energy consumption of the refrigeration unit.

[0007] As an optimization, a first electric valve is installed on the cooling main pipe, and a second electric valve is installed on the water distribution pipe. By providing the first electric valve and the second electric valve, cooling of the device to be cooled is conveniently achieved.

[0008] As an optimization, the refrigeration unit, the first electric valve, the water pump unit and the second electric valve are electrically connected to the controller respectively. The controller is wirelessly connected to the host computer, which includes but is not limited to a PC, a computer, a mobile phone and a display, etc. By using the controller, it is convenient to control the cooling work and digitally display on the display terminal.

[0009] As an optimization, a device temperature sensor is installed on the device to be cooled, and the device temperature sensor is electrically connected to the controller. By setting the device temperature sensor, the device temperature can be monitored, and the controller can control the opening and closing degree of the first electric valve and the second electric valve according to the temperature of the device to be cooled.

[0010] As an optimization, a liquid level sensor and a water temperature sensor are installed in the water pump unit, and the liquid level sensor and the water temperature sensor are electrically connected to the controller respectively. By using the liquid level sensor, the water level in the water pump unit is monitored, and an alarm is issued when the water volume is too low.

[0011] As an optimization, the controller is electrically connected to an ambient temperature sensor. By using the ambient temperature sensor, whether the external radiator works is controlled according to the external ambient temperature.

[0012] As an optimization, the external radiator includes a fin heat exchanger and a cooling fan.

[0013] As an optimization, a filter valve is installed on the return pipe. By setting the filter valve, the return water is filtered.

[0014] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0015] (1) By using an external radiator, this device can rely on the outdoor low temperature environment to replace the refrigeration unit to cool the water, effectively reducing the energy consumption of the refrigeration unit.

[0016] (2) This device is controlled by a controller and relies on various sensors to collect temperature data, and controls the first electric valve and the second electric valve to achieve the purpose of digital control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0018] Figure 1 This is a structural schematic diagram of embodiment 1 of the present utility model.

[0019] Figure 2This is a structural schematic diagram of the second embodiment of the present utility model.

[0020] In the figure: 1. Refrigeration unit, 2. First electric valve, 3. Cooling main pipe, 4. Water pump unit, 5. Return pipe, 6. Cooling device, 7. Cooling pipe, 8. External radiator, 9. Water distribution pipe, 10. Second electric valve, 11. Water supply main pipe, 12. Controller, 13. Ambient temperature sensor, 14. Equipment temperature sensor, 15. Filter valve, 16. Liquid level sensor, 17. Water temperature sensor. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of this solution, the utility model is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] like Figure 1 to Figure 2As shown, embodiment 1: a variable frequency chiller with natural cooling, comprising: a refrigeration unit 1 and a water pump unit 4; the water outlet of the water pump unit 4 is fixedly connected to one end of a water supply pipe 11, and the other end of the water supply pipe 11 is fixedly connected to the water inlet of the refrigeration unit 1; the water outlet of the refrigeration unit 1 is fixedly connected to one end of a cooling pipe 3, and the other end of the cooling pipe 3 is fixedly connected to the water inlet of a cooling pipe of a device to be cooled 6, the cooling pipe outlet of the device to be cooled 6 is fixedly connected to one end of a return pipe 5, and the other end of the return pipe 5 is fixedly connected to the return port of the water pump unit 4; the water supply pipe 11 is fixedly connected to one end of a water distribution pipe 9, and the other end of the water distribution pipe 9 is fixedly connected to the water inlet of an external radiator 8, the water outlet of the external radiator 8 is fixedly connected to one end of a cooling pipe 7, and the other end of the cooling pipe 7 is fixedly connected to the water inlet of the cooling pipe of the device to be cooled 6. By adopting the external radiator 8 , the outdoor low temperature environment can be used to cool the water instead of the refrigeration unit 1 , thereby effectively reducing the energy consumption of the refrigeration unit 1 .

[0023] The cooling main pipe 3 is provided with a first electric valve 2, and the water distribution pipe 9 is provided with a second electric valve 10. By providing the first electric valve 2 and the second electric valve 10, the cooling of the device 6 to be cooled can be realized conveniently.

[0024] The external radiator 8 includes a fin heat exchanger and a cooling fan.

[0025] A filter valve 15 is installed on the return water pipe 5. By setting the filter valve 15, the return water is filtered.

[0026] The workflow of this embodiment is:

[0027] The cold water supply outlet temperature of this system is 15 degrees, and it is used in the year-round cooling mode.

[0028] Under normal circumstances, the first electric valve 2 is open, the second electric valve 10 is closed, and the water is cooled by the refrigeration unit 1. When the cooling device 6 is working, the water pump unit 4 and the refrigeration unit 1 are working, and the first electric valve 2 is opened to realize the water circulation in the system composed of the water pump unit 4, the water supply pipe 11, the first electric valve 2, the refrigeration unit 1, the cooling pipe 3, the cooling device 6 and the return pipe 5, so that the refrigeration unit 1 cools the water, so that the cooling water cools the cooling device 6, and the cooling water becomes high-temperature water and returns to the water pump unit 4.

[0029] In late autumn or winter, when the outside temperature is low, the cold environment can be used to cool the hot water. By adjusting and opening the second electric valve 10, a part of the water can be cooled by heat exchange with the air. This can reduce the startup of the refrigeration unit 1 and reduce energy consumption. Water is circulated in the system consisting of the water pump unit 4, the water supply main 11, the water distribution pipe 9, the second electric valve 10, the external radiator 8, the cooling pipe 7, the cooling device 6 and the return pipe 5. The external radiator 8 uses the low temperature of the environment to cool the water, so that the cooling water cools the cooling device 6, and the cooling water becomes high-temperature water and returns to the water pump unit 4.

[0030] Embodiment 2: This embodiment is further described on the basis of embodiment 1, wherein the refrigeration unit 1, the first electric valve 2, the water pump unit 4 and the second electric valve 10 are electrically connected to the controller 12. The controller 12 is wirelessly connected to a host computer, which includes but is not limited to a PC, a computer, a mobile phone and a display, etc. By using the controller 12, it is convenient to realize the control of the cooling work and the digital display on the display terminal.

[0031] The device 6 to be cooled is provided with a device temperature sensor 14, which is electrically connected to the controller 12. By providing the device temperature sensor 14, the device temperature is monitored, and the controller 12 is convenient for controlling the opening and closing degree of the first electric valve 2 and the second electric valve 10 according to the temperature of the device 6 to be cooled.

[0032] The water pump unit 4 is provided with a liquid level sensor 16 and a water temperature sensor 17, which are electrically connected to the controller 12. The liquid level sensor 16 is used to monitor the water level in the water pump unit 4, and an alarm is sounded when the water level is too low.

[0033] The controller 12 is electrically connected to an ambient temperature sensor 13. By using the ambient temperature sensor 13, whether the external radiator 8 works is controlled according to the ambient temperature.

[0034] The workflow of this embodiment is:

[0035] Under normal circumstances, the controller 12 controls the opening and closing degree of the first electric valve 2 and the operation of the refrigeration unit 1 according to the equipment temperature sensor 14 and the water temperature sensor 17 to control the water temperature to 15 degrees.

[0036] In late autumn or winter, the controller 12 determines the outside temperature based on the ambient temperature sensor 13, and then controls whether the second electric valve 10 is opened and the opening degree.

[0037] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A variable frequency chiller with natural cooling, characterized in that: include: Refrigeration unit (1) and water pump unit (4); The water outlet of the water pump unit (4) is fixedly connected to one end of the water supply pipe (11), and the other end of the water supply pipe (11) is fixedly connected to the water inlet of the refrigeration unit (1); The water outlet of the refrigeration unit (1) is fixedly connected to one end of the cooling main pipe (3), the other end of the cooling main pipe (3) is fixedly connected to the water inlet of the cooling pipe of the device to be cooled (6), the water outlet of the cooling pipe of the device to be cooled (6) is fixedly connected to one end of the return pipe (5), the other end of the return pipe (5) is fixedly connected to the return port of the water pump unit (4); The water supply main pipe (11) is fixedly connected to one end of the water distribution pipe (9), the other end of the water distribution pipe (9) is fixedly connected to the water inlet of the external radiator (8), the water outlet of the external radiator (8) is fixedly connected to one end of the cooling pipe (7), the other end of the cooling pipe (7) is fixedly connected to the water inlet of the cooling pipeline of the device to be cooled (6); A first electric valve (2) is installed on the cooling main pipe (3), and a second electric valve (10) is installed on the water distribution pipe (9); The refrigeration unit (1), the first electric valve (2), the water pump unit (4) and the second electric valve (10) are electrically connected to a controller (12) respectively; The device to be cooled (6) is provided with a device temperature sensor (14), and the device temperature sensor (14) is electrically connected to the controller (12); A liquid level sensor (16) and a water temperature sensor (17) are installed in the water pump unit (4); the liquid level sensor (16) and the water temperature sensor (17) are electrically connected to the controller (12) respectively.

2. The variable frequency chiller with natural cooling according to claim 1, characterized in that: The controller (12) is electrically connected to the ambient temperature sensor (13).

3. The variable frequency chiller with natural cooling according to claim 1, characterized in that: The external radiator (8) comprises a fin heat exchanger and a cooling fan.

4. The variable frequency chiller with natural cooling according to claim 1, characterized in that: A filter valve (15) is installed on the water return pipe (5).

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