A screw-type brine chiller unit

Abstract

This utility model provides a screw-type brine chiller unit, including a bottom leak detection mechanism, a condenser, an evaporator, an oil separator, a screw compressor, a control console, a self-repairing mechanism, a throttle valve, and an aluminum anode block. The condenser is located above the bottom leak detection mechanism, and the oil separator is located above the condenser. This design solves the problems of existing devices where brine accelerates the corrosion of the chiller unit during use, leading to a reduction in the lifespan of the chiller unit and compressor, and the inability to promptly warn and stop the unit when leaks occur. This utility model has a reasonable structure. Through the cooperation of the bottom leak detection mechanism, the self-repairing mechanism, and the aluminum anode block, it can automatically repair damage to the internal paint of the pipes, effectively reducing labor costs. At the same time, it can promptly notify personnel when leaks occur, preventing overall damage to the chiller unit and effectively improving the corrosion resistance of the chiller unit.

Description

Technical Field

[0001] This utility model is a screw-type brine chiller unit, belonging to the technical field of chiller units. Background Technology

[0002] As a key component of modern industrial chiller systems, the core value of screw chillers lies in their unique twin-screw compression technology. Unlike traditional reciprocating compressors, the screw design uses two precisely meshing helical rotors (male and female rotors) that rotate continuously within the casing to achieve the intake, compression, and discharge of refrigerant gas.

[0003] Chinese Patent No. CN222142446U discloses a screw-type brine chiller unit. By installing the main body mechanism, the installation and fixing capability of this utility model is improved. In actual use, the screw-type brine chiller unit body can be conveniently installed and fixed according to the usage needs, improving the stability of installation and use and enhancing the ease of use of the screw-type brine chiller unit. However, during use, brine will accelerate the corrosion of the chiller unit, leading to a reduction in the life of the chiller unit and compressor. Furthermore, it cannot provide timely warnings and stop the unit's operation when the chiller unit leaks. There is an urgent need for a screw-type brine chiller unit to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a screw-type brine chiller unit to solve the problems mentioned in the background. This utility model has a reasonable structure. Through the cooperation of the bottom leakage detection mechanism, the self-repair mechanism, and the aluminum anode block, it can automatically repair itself after the paint inside the pipe is damaged, effectively reducing labor costs. At the same time, it can notify the staff in time when leakage occurs, preventing the overall damage of the chiller unit and effectively improving the corrosion resistance of the chiller unit.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screw-type brine chiller unit, comprising a bottom leakage detection mechanism, a condenser, an evaporator, an oil separator, a screw compressor, a control console, a self-repairing mechanism, a throttle valve, and an aluminum anode block. The condenser is positioned above the bottom leakage detection mechanism, the oil separator is positioned above the condenser, the evaporator is positioned above the evaporator, and the screw compressor is positioned above the evaporator. A control console is mounted on the circumferential surface of the condenser. The inner walls of both the evaporator and the condenser are equipped with self-repairing mechanisms. The repair mechanism includes a throttling valve located below the condenser and an aluminum anode block located below the evaporator. The bottom leakage detection mechanism includes a bottom support plate, a current sensor, and an alarm. The bottom support plate is located below the condenser and evaporator. Two current sensors are installed inside the bottom support plate. Two alarms are installed on the upper surface of the control panel. The self-repairing mechanism includes a self-repairing polymer membrane and molybdate capsules. The inner walls of both the evaporator and condenser are covered with self-repairing polymer membranes, and each self-repairing polymer membrane contains several molybdate capsules.

[0006] Furthermore, two condensing support plates are installed on the circumferential surface of the condenser, and the lower end of the condensing support plate is fixedly connected to the bottom support plate. Two evaporating support plates are installed on the circumferential surface of the evaporator, and the lower end of the evaporating support plate is fixedly connected to the bottom support plate.

[0007] Furthermore, an oil separation support plate is installed on the circumferential surface of the oil separator, and the lower end of the oil separation support plate is fixedly connected to the surface of the condenser. A compressor support plate is installed on the circumferential surface of the screw compressor, and the lower end of the compressor support plate is fixedly connected to the surface of the evaporator.

[0008] Furthermore, the evaporator is connected to the oil separator via a connecting pipe, the oil separator is connected to the screw compressor via a connecting pipe, the screw compressor is connected to the evaporator via a connecting pipe, the evaporator is connected to the throttle valve via a connecting pipe, and the throttle valve is connected to the condenser via a connecting pipe.

[0009] Furthermore, the aluminum anode block is connected to the evaporator via a wire, and the aluminum anode block is fixedly connected to the evaporator support plate.

[0010] Furthermore, the output terminal of the current sensor is electrically connected to the PLC controller, the output terminal of the PLC controller is electrically connected to the input terminal of the alarm, and the output terminal of the PLC controller is connected to the input terminal of the screw compressor.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a screw-type brine chiller unit. Because it incorporates a bottom leakage detection mechanism, a self-repairing mechanism, an aluminum anode block, and wires, when the inner wall of the evaporator or condenser is damaged, the self-repairing polymer membrane will break first, and the molybdate capsules inside will release molybdate, thereby preventing the brine from corroding the inner wall of the evaporator and condenser. The self-repairing polymer membrane will re-contact and recover after a period of contact, causing the damaged wound to close again, thus hindering the corrosion of the inner wall of the evaporator and condenser by the brine. When a leak occurs in any part of the chiller unit, the leaked brine enters the bottom support plate, and the salt content of the water on the bottom support plate will change, causing a change in conductivity. At this time, the current sensor in the water will detect the change in current and transmit the signal to the PLC controller. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of a screw-type brine chiller unit according to the present invention;

[0014] Figure 2 This is a rear view of a screw-type brine chiller unit according to the present invention.

[0015] Figure 3 This is a cross-sectional schematic diagram of the evaporator of a screw-type brine chiller unit according to the present invention;

[0016] Figure 4 This is a cross-sectional schematic diagram of the bottom support plate of a screw-type brine chiller unit according to the present invention;

[0017] In the diagram: 1-Bottom leakage detection mechanism, 11-Bottom support plate, 12-Current sensor, 13-Alarm, 2-Condenser, 21-Condenser support plate, 22-Oil separator support plate, 23-Connecting pipe, 3-Evaporator, 31-Evaporator support plate, 32-Compressor support plate, 4-Oil separator, 5-Screw compressor, 6-Control console, 61-PLC controller, 7-Self-healing mechanism, 71-Self-healing polymer membrane, 72-Molybdate capsule, 8-Throttle valve, 9-Aluminum anode block, 91-Wire. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figures 1-4This utility model provides a technical solution: a screw-type brine chiller unit, including a bottom leakage detection mechanism 1, a condenser 2, an evaporator 3, an oil separator 4, a screw compressor 5, a control console 6, a self-repairing mechanism 7, a throttle valve 8, and an aluminum anode block 9. The condenser 2 is positioned above the bottom leakage detection mechanism 1, the oil separator 4 is positioned above the condenser 2, the evaporator 3 is positioned above the evaporator 3, and the screw compressor 5 is positioned above the evaporator 3. The control console 6 is mounted on the circumferential surface of the condenser 2. Self-repairing mechanisms 7 are installed on the inner walls of both the evaporator 3 and the condenser 2. A throttle valve 8 is positioned below the condenser 2, and an aluminum anode block 9 is positioned below the evaporator 3. The bottom leakage detection mechanism 1 includes... The device includes a bottom support plate 11, a current sensor 12, and an alarm 13. The bottom support plate 11 is located below the condenser 2 and the evaporator 3. Two current sensors 12 are installed inside the bottom support plate 11. Two alarms 13 are installed on the upper surface of the control panel 6. The self-healing mechanism 7 includes a self-healing polymer membrane 71 and molybdate capsules 72. The inner walls of the evaporator 3 and the condenser 2 are both equipped with self-healing polymer membranes 71. Each self-healing polymer membrane 71 contains several molybdate capsules 72. This design solves the problem that in the original device, brine would accelerate the corrosion of the refrigeration unit during use, leading to a reduction in the lifespan of the refrigeration unit and the compressor, and that it could not provide timely warnings and stop the unit from operating when the refrigeration unit leaked water.

[0020] As the first embodiment of this utility model: two condensing support plates 21 are installed on the circumferential surface of the condenser 2, and the lower end of the condensing support plate 21 is fixedly connected to the bottom support plate 11; two evaporating support plates 31 are installed on the circumferential surface of the evaporator 3, and the lower end of the evaporating support plate 31 is fixedly connected to the bottom support plate 11; an oil separation support plate 22 is installed on the circumferential surface of the oil separator 4, and the lower end of the oil separation support plate 22 is fixedly connected to the surface of the condenser 2; a compressor support plate 32 is installed on the circumferential surface of the screw compressor 5, and the lower end of the compressor support plate 32 is fixedly connected to the surface of the evaporator 3; the evaporator 3 and the oil separator 4 are connected by a connecting pipe 23; and the oil separator 4 and the screw compressor 5 are connected by a connecting pipe 23. The screw compressor 5 is connected to the evaporator 3 via connecting pipe 23. The evaporator 3 is connected to the throttle valve 8 via connecting pipe 23. The throttle valve 8 is connected to the condenser 2 via connecting pipe 23. The aluminum anode block 9 is connected to the evaporator 3 via wire 91. The aluminum anode block 9 is fixedly connected to the support plate of the evaporator 3. The aluminum anode block 9 ensures that the evaporator 3 is always the cathode, thereby reducing the corrosive effect of brine on the outer shell of the evaporator 3. The output terminal of the current sensor 12 is electrically connected to the PLC controller 61. The output terminal of the PLC controller 61 is electrically connected to the input terminal of the alarm 13. The output terminal of the PLC controller 61 is connected to the input terminal of the screw compressor 5.

[0021] As a second embodiment of this utility model: when the inner wall of the evaporator 3 or condenser 2 is damaged, the self-healing polymer membrane 71 will break first, and the molybdate capsule 72 inside will release molybdate, thereby preventing the salt water from corroding the inner wall of the evaporator 3 and condenser 2. The self-healing polymer membrane 71 will re-contact and recover after a period of contact, so that the damaged wound will close again, preventing the salt water from corroding the inner wall of the evaporator 3 and condenser 2. When there is a leak in the refrigeration unit, the leaked salt water enters the bottom support plate 11, and the salt content of the water on the bottom support plate 11 will change, causing a change in conductivity. At this time, the current sensor 12 in the water will sense the change in current and transmit the signal to the PLC controller 61. The PLC controller 61 will judge the degree of salt water leakage based on the conductivity of the water. When the salt water leakage is slight, the PLC controller 61 will control the alarm 13 to sound an alarm. When the salt water leakage is serious, the PLC controller 61 will directly control the screw compressor 5 to stop, waiting for the staff to inspect and repair.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A screw type salt water chiller unit comprising a bottom leakage detection mechanism, a condenser, an evaporator, an oil separator, a screw compressor, a control panel, a self-repairing mechanism, a throttling valve, and an aluminum anode block, characterized in that: A condenser is installed above the bottom leakage detection mechanism, an oil separator is installed above the condenser, an evaporator is installed above the bottom leakage detection mechanism, a screw compressor is installed above the evaporator, a control console is installed on the circumferential surface of the condenser, a self-repairing mechanism is installed on the inner wall of both the evaporator and the condenser, a throttling valve is installed below the condenser, and an aluminum anode block is installed below the evaporator. The bottom leakage detection mechanism includes a bottom support plate, a current sensor, and an alarm. The bottom support plate is located below the condenser and evaporator. Two current sensors are installed inside the bottom support plate, and two alarms are installed on the upper surface of the control console. The self-healing mechanism includes a self-healing polymer membrane and molybdate capsules. The inner walls of the evaporator and condenser are both equipped with self-healing polymer membranes, and each self-healing polymer membrane contains several molybdate capsules.

2. A screw brine chiller unit as set forth in claim 1 wherein: Two condensing support plates are installed on the circumferential surface of the condenser, and the lower end of the condensing support plate is fixedly connected to the bottom support plate. Two evaporating support plates are installed on the circumferential surface of the evaporator, and the lower end of the evaporating support plate is fixedly connected to the bottom support plate.

3. A screw salt water chiller unit as claimed in claim 1, wherein: An oil separation support plate is installed on the circumferential surface of the oil separator, and the lower end of the oil separation support plate is fixedly connected to the surface of the condenser. A compressor support plate is installed on the circumferential surface of the screw compressor, and the lower end of the compressor support plate is fixedly connected to the surface of the evaporator.

4. A screw salt water chiller unit as claimed in claim 1, wherein: The evaporator is connected to the oil separator via a connecting pipe, the oil separator is connected to the screw compressor via a connecting pipe, the screw compressor is connected to the evaporator via a connecting pipe, the evaporator is connected to the throttle valve via a connecting pipe, and the throttle valve is connected to the condenser via a connecting pipe.

5. A screw-type brine chiller unit according to claim 4, characterized in that: The aluminum anode block is connected to the evaporator via a wire, and the aluminum anode block is fixedly connected to the evaporator support plate.

6. A screw brine chiller unit as set forth in claim 5 wherein: The output terminal of the current sensor is electrically connected to the PLC controller, the output terminal of the PLC controller is electrically connected to the input terminal of the alarm, and the output terminal of the PLC controller is connected to the input terminal of the screw compressor.

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