Multi-split box body high and low temperature control system

Abstract

The utility model discloses a multi-split box high and low temperature control system which comprises a refrigerating unit used for providing refrigerating fluid. A main branch, a bypass branch, an evaporator, a heater and a plurality of temperature measuring sensors are arranged in each branch box; the inlet end of the main branch and the inlet end of the bypass branch are connected in parallel and then communicate with a refrigerant outlet of the refrigerating unit through the main path assembly, the outlet end of the main branch communicates with the inlet end of the evaporator, and the outlet end of the evaporator and the outlet end of the bypass branch are connected in parallel and then communicate with a refrigerant backflow opening of the refrigerating unit through the loop assembly. The main branch and the bypass branch are each provided with an electronic expansion valve. The temperature of each sub-box body can be independently controlled, so that the requirements of a user on independent spaces of multiple box bodies and independent temperature control of each box body can be met, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high and low temperature control, in particular to a one-to-many box high and low temperature control system. Background Art

[0002] In traditional single-box high and low temperature equipment, one refrigeration system usually loads one box. This model has obvious limitations in the production process and cannot meet the user's needs for independent space for multiple boxes and independent temperature control of each box. It often takes more time and resources to process large quantities of products, which affects production efficiency. In addition, since each box needs to be equipped with a separate refrigeration system, its energy consumption and power consumption are high when it operates alone, which increases the company's energy consumption and production and maintenance costs. Therefore, there is an urgent need for a one-to-multiple-box high and low temperature control system. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides a high and low temperature control system for multiple cabinets.

[0004] The utility model discloses a high and low temperature control system for multiple boxes, comprising:

[0005] A refrigeration unit, wherein the refrigeration unit is used to provide a refrigerant;

[0006] A plurality of sub-boxes are provided with a main branch, a bypass branch, an evaporator, a heater and a plurality of temperature sensors; the inlet end of the main branch and the inlet end of the bypass branch are connected in parallel and are connected to the refrigerant outlet of the refrigeration unit through a main path component, the outlet end of the main branch is connected to the inlet end of the evaporator, the outlet end of the evaporator and the outlet end of the bypass branch are connected in parallel and are connected to the refrigerant return port of the refrigeration unit through a loop component; electronic expansion valves are installed on both the main branch and the bypass branch.

[0007] As a further improvement of the utility model, it also includes a control module;

[0008] The refrigeration unit and the plurality of temperature measuring sensors, the plurality of electronic expansion valves, and the heater in each sub-box are electrically connected to the control module respectively.

[0009] As a further improvement of the utility model, the main line assembly includes a main line, a parallel line and a first liquid dispensing head;

[0010] The inlet end of the main line is connected in parallel with the inlet end of the parallel line and then communicated with the refrigerant outlet. A main capillary is connected in series on the main line, and a parallel capillary is connected in series on the parallel line. The outlet end of the main line is connected in parallel with the outlet end of the parallel line and then communicated with the first liquid distribution head. The inlet end of the main branch and the inlet end of the bypass branch in each sub-box are connected in parallel and then communicated with the first liquid distribution head respectively. A parallel solenoid valve is also provided on the parallel line, and the parallel solenoid valve is electrically connected to the control module.

[0011] As a further improvement of the utility model, the circuit assembly includes a reflux pipeline and a second liquid dispensing head;

[0012] The outlet end of the evaporator in each sub-box is connected in parallel with the outlet end of the bypass branch and is communicated with the second liquid distribution head respectively, and the second liquid distribution head is communicated with the refrigerant reflux port.

[0013] As a further improvement of the utility model, it also includes a bypass component, and the bypass component includes a bypass pipeline and a bypass solenoid valve;

[0014] One end of the bypass pipeline is communicated with the refrigerant outlet, and the other end is communicated with the refrigerant reflux port; the bypass solenoid valve is installed on the bypass pipeline, and the bypass solenoid valve is electrically connected to the control module.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a plurality of sub-boxes, and each sub-box can be independently temperature-controlled, thereby meeting the needs of users for independent spaces of multiple boxes and independent temperature control of each box, and improving production efficiency.

[0017] The utility model can accurately control the flow rate of refrigerant in the main branch, bypass branch, evaporator and electronic expansion valve in each sub-box, thereby improving the accuracy and response speed of temperature control; by separately arranging a heater in each sub-box, combined with multiple temperature measuring sensors in each sub-box, the temperature of each sub-box can be increased or decreased, and the temperature of each sub-box can be accurately controlled, thereby improving production efficiency.

[0018] The utility model provides a plurality of sub-boxes and shares a refrigeration unit to provide refrigerant for each sub-box, thereby reducing energy consumption and reducing the energy consumption, production and maintenance costs of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a high and low temperature control system of one-to-many boxes disclosed in an embodiment of the utility model.

[0020] In the figure:

[0021] 1. Refrigeration unit; 1-1. Compressor; 1-2. Condenser; 1-3. Dry filter; 1-4. Regenerator; 2. Sub-box; 3. Main branch; 4. Bypass branch; 5. Heater; 6. Evaporator; 7. Main branch electronic expansion valve; 8. Bypass branch electronic expansion valve; 9. Temperature sensor; 10. Main line; 11. Parallel line; 12. Main capillary; 13. Parallel capillary; 14. Parallel solenoid valve; 15. Bypass line; 16. Reflux line; 17. Bypass solenoid valve; 18-1. First liquid distributor; 18-2. Second liquid distributor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0026] like Figure 1As shown, according to a one-to-many-box high and low temperature control system provided by the utility model, it includes a refrigeration unit 1 and multiple sub-boxes 2, wherein each sub-box 2 is provided with a main branch 3, a bypass branch 4, an evaporator 6, a heater 5 and multiple temperature sensors 9; the inlet end of the main branch 3 and the inlet end of the bypass branch 4 are connected in parallel and connected to the refrigerant outlet of the refrigeration unit 1 through a main path component, the outlet end of the main branch 3 is connected to the inlet end of the evaporator 6, the outlet end of the evaporator 6 is connected in parallel with the outlet end of the bypass branch 4 and connected to the refrigerant reflux port of the refrigeration unit 1 through a loop component; electronic expansion valves are installed on the main branch 3 and the bypass branch 4, that is, a main branch electronic expansion valve 7 is installed on the main branch 3, and a bypass branch electronic expansion valve 8 is installed on the bypass branch 4.

[0027] In this embodiment, by setting up multiple sub-boxes 2, and each sub-box 2 can be independently temperature-controlled, the user's needs for independent spaces of multiple boxes and independent temperature control of each box can be met, thereby improving production efficiency; by providing the main branch 3, bypass branch 4, evaporator 6 and electronic expansion valve in each sub-box 2, the flow rate of the refrigerant can be accurately controlled, thereby improving the accuracy and response speed of temperature control; by separately providing a heater 5 in each sub-box 2, in conjunction with multiple temperature sensors 9 in each sub-box 2, the temperature of each sub-box 2 can be increased or decreased, and the temperature of each sub-box 2 can be accurately controlled, thereby improving production efficiency; by setting up multiple sub-boxes 2, and sharing a refrigeration unit 1 to provide refrigerant for each sub-box 2, energy consumption is reduced while reducing the company's energy consumption and production and maintenance costs.

[0028] Specific:

[0029] like Figure 1 As shown, in the above embodiment, preferably, the refrigeration unit 1 includes a compressor 1-1, a condenser 1-2, a filter drier 1-3 and a regenerator 1-4, wherein the outlet of the compressor is connected to the condenser 1-2 through an exhaust shock absorber pipe and an oil separator, the outlet end of the condenser 1-2 is connected to the first input end of the regenerator 1-4 through a filter drier 1-3, and the first output end of the regenerator 1-4 constitutes a refrigerant outlet; the second input end of the regenerator 1-4 constitutes a refrigerant return port, and the second output end of the regenerator 1-4 is connected to the inlet end of the compressor. In this embodiment, the structure and working principle of the refrigeration unit 1 are existing designs and are not described in detail here.

[0030] like Figure 1 As shown, in the above embodiment, preferably, a control module is also included; the refrigeration unit 1 and multiple temperature sensors 9 in each sub-box 2, the main branch electronic expansion valve 7, the bypass branch electronic expansion valve 8, and the heater 5 are electrically connected to the control module respectively.

[0031] In the above embodiment, preferably, the main line component includes a main line 10, a parallel line 11 and a first liquid distributor head 18-1; the inlet end of the main line 10 is connected in parallel with the inlet end of the parallel line 11 and then connected to the refrigerant outlet, a main capillary 12 is connected in series on the main line 10, and a parallel capillary 13 is connected in series on the parallel line 11; the outlet end of the main line 10 is connected in parallel with the outlet end of the parallel line 11 and then connected to the first liquid distributor head 18-1, the inlet end of the main branch 10 and the inlet end of the bypass branch 11 in each sub-box are connected in parallel and then connected to the first liquid distributor head 18-1 respectively; a parallel solenoid valve 14 is also provided on the parallel line 11, and the parallel solenoid valve 14 is electrically connected to the control module.

[0032] In the above embodiment, preferably, the circuit assembly includes a return pipeline 16 and a second liquid distributor 18-2; the outlet end of the evaporator 6 in each sub-box 2 is connected in parallel with the outlet end of the bypass branch 4 and then connected to the second liquid distributor 18-2 respectively, and the second liquid distributor 18-2 is connected to the refrigerant return port.

[0033] In the above embodiment, preferably, a bypass component is also included, and the bypass component includes a bypass line 15 and a bypass solenoid valve 17; one end of the bypass line 15 is connected to the refrigerant outlet, and the other end is connected to the refrigerant return port; a bypass solenoid valve 17 is installed on the bypass line 15, and the bypass solenoid valve 17 is electrically connected to the control module.

[0034] In the above embodiment, preferably, the sub-box 2 includes an inner box and an outer box sleeved outside the inner box, and the evaporator 6 in each sub-box 2 is composed of two φ10 copper tubes. During the specific installation, the two φ10 copper tubes are respectively coiled on the upper and lower inner walls of the inner box. The input ends of the upper and lower two φ10 copper tubes are respectively connected to the output ends of the main branch 3 in the corresponding sub-box 2.

[0035] In the above embodiment, preferably, the heater 5 in each sub-box 2 is composed of 8 heating wires, and the 8 heating wires are respectively coiled on the upper and lower outer walls of the inner box, wherein 4 heating wires are reserved for spare use among the 8 heating wires, and the 8 heating wires are respectively electrically connected to the control module.

[0036] In the above embodiment, preferably, the control module includes a PLC, which is integrated in an electrical control box on one side of the refrigeration unit. The refrigeration unit and multiple temperature sensors 9, the main branch electronic expansion valve 7, the bypass branch electronic expansion valve 8, the heating wire, the parallel solenoid valve 14, and the bypass solenoid valve 17 in each sub-box are electrically connected to each sub-box 2 so as to perform individual temperature control or common temperature control on each sub-box 2. That is, each sub-box 2 in this embodiment can achieve common temperature control or independent temperature control requirements.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high and low temperature control system for multiple cabinets, characterized in that: include: A refrigeration unit, wherein the refrigeration unit is used to provide a refrigerant; A plurality of sub-boxes are provided with a main branch, a bypass branch, an evaporator, a heater and a plurality of temperature sensors; the inlet end of the main branch and the inlet end of the bypass branch are connected in parallel and are connected to the refrigerant outlet of the refrigeration unit through a main path component, the outlet end of the main branch is connected to the inlet end of the evaporator, the outlet end of the evaporator and the outlet end of the bypass branch are connected in parallel and are connected to the refrigerant return port of the refrigeration unit through a loop component; electronic expansion valves are installed on both the main branch and the bypass branch.

2. The high and low temperature control system for multiple cabinets according to claim 1 is characterized in that: Also includes a control module; The refrigeration unit and the plurality of temperature measuring sensors, the plurality of electronic expansion valves, and the heater in each sub-box are electrically connected to the control module respectively.

3. The high and low temperature control system for multiple cabinets according to claim 2 is characterized in that: The main line assembly includes a main line, a parallel line and a first liquid dispensing head; The inlet end of the main line is connected in parallel with the inlet end of the parallel line and then communicated with the refrigerant outlet. A main capillary is connected in series on the main line, and a parallel capillary is connected in series on the parallel line. The outlet end of the main line is connected in parallel with the outlet end of the parallel line and then communicated with the first liquid distribution head. The inlet end of the main branch and the inlet end of the bypass branch in each sub-box are connected in parallel and then communicated with the first liquid distribution head respectively. A parallel solenoid valve is also provided on the parallel line, and the parallel solenoid valve is electrically connected to the control module.

4. The high and low temperature control system for multiple cabinets according to claim 1 is characterized in that: The circuit assembly includes a reflux pipeline and a second liquid dispensing head; The outlet end of the evaporator in each sub-box is connected in parallel with the outlet end of the bypass branch and is communicated with the second liquid distribution head respectively, and the second liquid distribution head is communicated with the refrigerant reflux port.

5. The high and low temperature control system for multiple cabinets according to claim 2 is characterized in that: Also included is a bypass assembly, the bypass assembly including a bypass pipeline and a bypass solenoid valve; One end of the bypass pipeline is communicated with the refrigerant outlet, and the other end is communicated with the refrigerant reflux port; the bypass solenoid valve is installed on the bypass pipeline, and the bypass solenoid valve is electrically connected to the control module.

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