Water-cooling double-circulation cooling-water machine

Abstract

The utility model discloses a water-cooling double-circulation cooling-water machine, and relates to the technical field of cooling-water machines. The air conditioner comprises a rack, a first compressor is fixedly connected to the bottom in the rack, a second compressor is arranged on one side of the first compressor, a circulating water pump is arranged on one side of the second compressor, and a shell and tube condenser is arranged on the rear side of the circulating water pump. Through the design of the double-circulation system, the internal circulation is responsible for refrigeration of chilled water, the external circulation is responsible for heat dissipation of cooling water, and the internal circulation and the external circulation are mutually independent and work cooperatively, so that efficient and stable operation of the system is ensured. According to the design, the refrigerating efficiency and the heat dissipation effect of the water chiller are remarkably improved, the water chiller is suitable for high-load and long-time operation industrial environments, and by optimizing the design of the shell and tube condenser and the circulating water pump, the heat exchange efficiency is improved, and the energy consumption is reduced. Unnecessary energy loss is reduced through cooperation of the double circulation systems, and the energy utilization efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of water chiller, especially relates to a water-cooled double-circulation water chiller. BACKGROUND

[0002] The water chiller is a kind of equipment for refrigeration system, mainly through circulating cooling water to reduce temperature, is widely used in industry, commerce and air conditioning system, it can reach the effect of maintaining low temperature or cooling by absorbing the heat in equipment or environment, water chiller is usually composed of compressor, condenser, evaporator and expansion valve etc., utilizes the phase change process of refrigerant in system to realize cooling.

[0003] The cooling mode of the existing water chiller in the use process is mostly single-circulation cooling, and the condenser heat dissipation efficiency of single-circulation cooling mode is greatly influenced by environment and cooling medium, and the whole water chiller is prone to problems such as cooling efficiency reduction, energy consumption increase and system load instability during use.Especially in the case of high load or long time operation, the heat dissipation capacity of single-circulation cooling system is insufficient, which easily leads to system overheating, and affects the normal operation of equipment.In addition, the maintenance and monitoring of single-circulation system are more complex, which increases the operation difficulty and maintenance cost, therefore, we provide a water-cooled double-circulation water chiller to solve the above problems. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of water-cooled double-circulation water chiller, the cooperation of inner loop component and outer loop component solves the problem that the water chiller of prior art adopts single-circulation cooling mode, leading to poor water chiller heat dissipation effect and reduced working efficiency.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes.

[0006] The utility model is a kind of water-cooled double-circulation water chiller, including rack, first compressor is fixedly connected in the bottom of rack, the side of first compressor is provided with second compressor, the side of second compressor is provided with circulating water pump, the back side of circulating water pump is provided with shell and tube condenser;Inner loop component is arranged on the top of circulating water pump, and the inner loop component includes inner loop water tank arranged in the inside of rack, inner loop chilled water outlet connected with the top of circulating water pump and inner loop chilled water return port connected with the side of shell and tube condenser, and the chilled water is driven to flow into the equipment needing refrigeration by inner loop component;Outer loop component is arranged on the back side of circulating water pump, and the outer loop component includes outer loop cooling water outlet connected with the side of shell and tube condenser and outer loop cooling water return port arranged on the back side of outer loop cooling water outlet, and the cooling water is driven to flow into the inside of shell and tube condenser by outer loop component.

[0007] The utility model further sets up, the inner circulation assembly still includes the water supplementing mouth of intercommunication in the inner circulation water tank one side and the inner circulation water flow switch of setting in the inner circulation refrigerated water outlet surface.

[0008] The utility model further sets up, the outer circulation assembly still includes the outer circulation water flow switch of setting in the outer circulation cooling water return water outlet surface, monitors the cooling water state through the outer circulation water flow switch.

[0009] The utility model further sets up, the rack front side fixed connection has the computer board operation panel, controls whole system through the computer board operation panel.

[0010] The utility model further sets up, the computer board operation panel one side is provided with first high voltage meter, and the first high voltage meter bottom is provided with first low voltage meter.

[0011] The utility model further sets up, and the first low voltage meter bottom is provided with second high voltage meter, and the second high voltage meter bottom is provided with second low voltage meter.

[0012] The utility model further sets up, and the second low voltage meter bottom is provided with water flow pressure meter, and the water circulation pressure is monitored through water flow pressure meter.

[0013] The utility model has the following beneficial effects.

[0014] 1. The utility model discloses a double circulation system design, and the inner circulation is responsible for the refrigeration of refrigerated water, and the outer circulation is responsible for the heat dissipation of cooling water, and the two are independent and work together, ensure that the system is efficient, stable operation. This design significantly improves the refrigeration efficiency and heat dissipation effect of the water chiller, is suitable for high load and long time running industrial environment, improves the heat exchange efficiency through the design of shell and tube condenser and circulating water pump, reduces energy consumption. The division of labor and cooperation of double circulation system reduces unnecessary energy loss, further improves energy utilization efficiency.

[0015] 2. The utility model discloses a water flow switch and pressure gauge, can real-time monitoring system state, ensure that the operation is safe. Through the computer board operation panel realizes the automation control, improves the operation convenience and system stability, reduces the risk of human operation error, through the first compressor and the second compressor, can adapt to different load demand, improves the flexibility and adaptability of system. Whether in high load or low load condition, the system can keep efficient operation, through the water supplementing mouth design of inner circulation water tank, the user can conveniently carry out the supplement and maintenance of refrigerated water. The setting of outer circulation water flow switch and inner circulation water flow switch makes the monitoring and maintenance of system state more convenient.

[0016] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a 3D diagram of a water-cooled dual-cycle chiller.

[0019] In the attached diagram: 1. Frame; 2. First compressor; 3. Second compressor; 4. Circulating water pump; 5. Shell and tube condenser; 6. Internal circulating water tank; 7. Internal circulating chilled water outlet; 8. Internal circulating chilled water return outlet; 9. External circulating cooling water outlet; 10. External circulating cooling water return outlet; 11. Water inlet; 12. Internal circulating water flow switch; 13. External circulating water flow switch; 14. Computer board operation panel; 15. First high-pressure gauge; 16. First low-pressure gauge; 17. Second high-pressure gauge; 18. Second low-pressure gauge; 19. Water flow pressure gauge. Detailed Implementation

[0020] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1

[0022] Please see Figure 1This utility model relates to a water-cooled dual-circulation chiller, comprising a frame 1, with a first compressor 2 fixedly connected to the bottom of the frame 1. A second compressor 3 is disposed on one side of the first compressor 2, and a circulating water pump 4 is disposed on one side of the second compressor 3. A shell-and-tube condenser 5 is disposed behind the circulating water pump 4. The second compressor 3, the circulating water pump 4, and the shell-and-tube condenser 5 are all fixedly connected to the frame 1. The first compressor 2 and the second compressor 3 are both connected to the shell-and-tube condenser 5. The first compressor 2 and the second compressor 3 are responsible for drawing in and compressing low-pressure and low-temperature refrigerant gas, converting it into high-pressure and high-temperature gas. The main function of the shell-and-tube condenser 5 is to cool the high-temperature and high-pressure gas refrigerant discharged from the first compressor 2 and the second compressor 3, converting it into liquid refrigerant. The circulating water pump 4 drives the flow of chilled water. An internal circulation device is disposed on the top of the circulating water pump 4. The internal circulation assembly includes an internal circulation water tank 6 located inside the frame 1. The circulating water pump 4 and the shell-and-tube condenser 5 are all connected to the internal circulation water tank 6. The internal circulation water tank 6 stores chilled water and is fixedly connected to the frame 1. The internal circulation chilled water outlet 7 is connected to the top of the circulating water pump 4, and the internal circulation chilled water return outlet 8 is connected to one side of the shell-and-tube condenser 5. The internal circulation assembly drives the chilled water to flow into the equipment that needs to be refrigerated. An external circulation assembly is located behind the circulating water pump 4. The external circulation assembly includes an external circulation cooling water outlet 9 connected to one side of the shell-and-tube condenser 5 and an external circulation cooling water return outlet 10 located behind the external circulation cooling water outlet 9. The external circulation cooling water return outlet 10 is connected to the shell-and-tube condenser 5. The external circulation assembly drives the cooling water to flow into the shell-and-tube condenser 5.

[0023] Example 2

[0024] Please see Figure 1Based on Embodiment 1, the internal circulation component further includes a water inlet 11 connected to one side of the internal circulation water tank 6 and an internal circulation flow switch 12 sleeved on the surface of the internal circulation chilled water outlet 7. The external circulation component further includes an external circulation flow switch 13 sleeved on the surface of the external circulation cooling water return outlet 10. The external circulation flow switch 13 monitors the cooling water status. A computer board operation panel 14 is fixedly connected to the front side of the frame 1. The entire system is controlled through the computer board operation panel 14. A first high-pressure gauge 15 is provided on one side of the computer board operation panel 14, and a first high-pressure gauge 15 is provided at the bottom of the first high-pressure gauge 15. A first low-pressure gauge 16 is provided, a second high-pressure gauge 17 is provided at the bottom of the first low-pressure gauge 16, a second low-pressure gauge 18 is provided at the bottom of the second high-pressure gauge 17, and a water flow pressure gauge 19 is provided at the bottom of the second low-pressure gauge 18. The water circulation pressure is monitored by the water flow pressure gauge 19. The first high-pressure gauge 15, the first low-pressure gauge 16, the second high-pressure gauge 17, the second low-pressure gauge 18 and the water flow pressure gauge 19 are all fixedly connected to the frame 1. The first high-pressure gauge 15 and the first low-pressure gauge 16 are used to monitor the pressure of the first compressor 2, and the second high-pressure gauge 17 and the second low-pressure gauge 18 are used to monitor the pressure of the second compressor 3.

[0025] The working principle of this invention is as follows: Chilled water is added to the internal circulating water tank 6 through the water inlet 11, causing the first compressor 2 and the second compressor 3 to operate. This draws in and compresses the low-pressure, low-temperature refrigerant gas, transforming it into a high-pressure, high-temperature gas. The high-temperature, high-pressure gas enters the shell-and-tube condenser 5 for cooling, forming liquid refrigerant. The circulating water pump 4 drives the chilled water flow, and the chilled water in the internal circulating water tank 6 enters the equipment requiring cooling through the internal circulating chilled water outlet 7, where heat exchange occurs, forming hot water. The hot water flows back into the shell-and-tube condenser 5 through the internal circulating chilled water return outlet 8 for cooling, forming chilled water which is stored in the internal circulating water tank 6 for reuse.

[0026] Cooling water generated by cooling tower or external cooling equipment is introduced into the external circulating cooling water return port 10. The cooling water enters the shell and tube condenser 5, carries away the heat dissipated by the liquid refrigerant during cooling, and re-enters the cooling tower or external cooling equipment through the external circulating cooling water outlet 9 to form cooling water. This dissipates heat from the shell and tube condenser 5 and ensures the efficient operation of the shell and tube condenser 5.

[0027] The pressure of the first compressor 2 and the second compressor 3 is monitored in real time by the first high-pressure gauge 15, the first low-pressure gauge 16, the second high-pressure gauge 17, and the second low-pressure gauge 18 to ensure that the system operates within a safe pressure range. The water flow pressure gauge 19 is used to monitor the water circulation pressure to ensure the normal operation of the water circulation system. The computer control panel 14 enables automated control of the entire system, improving the convenience of operation and the stability of the system.

[0028] The internal circulation system is responsible for cooling the chilled water, while the external circulation system is responsible for dissipating heat from the cooling water. These two systems operate independently yet collaboratively, ensuring efficient and stable system operation. This design has wide applications in industrial refrigeration and air conditioning systems. It achieves multiple advantages, including high-efficiency cooling and heat dissipation, energy saving and consumption reduction, real-time monitoring and safe operation, strong adaptability, and easy maintenance, significantly improving the performance and reliability of the chiller.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water-cooled dual-circulation chiller, comprising a frame (1), characterized in that: The bottom of the frame (1) is fixedly connected to a first compressor (2), a second compressor (3) is provided on one side of the first compressor (2), a circulating water pump (4) is provided on one side of the second compressor (3), and a shell and tube condenser (5) is provided on the rear side of the circulating water pump (4). The top of the circulating water pump (4) is provided with an internal circulation component. The internal circulation component includes an internal circulating water tank (6) located inside the frame (1), an internal circulating chilled water outlet (7) connected to the top of the circulating water pump (4), and an internal circulating chilled water return outlet (8) connected to one side of the shell and tube condenser (5). The internal circulation component drives chilled water to flow into the equipment that needs to be refrigerated. An external circulation assembly is provided on the rear side of the circulating water pump (4). The external circulation assembly includes an external circulation cooling water outlet (9) connected to one side of the shell-and-tube condenser (5) and an external circulation cooling water return outlet (10) provided on the rear side of the external circulation cooling water outlet (9). The external circulation assembly drives the cooling water to flow into the shell-and-tube condenser (5).

2. A water-cooled dual-circulation chiller according to claim 1, characterized in that: The internal circulation component also includes a water inlet (11) connected to one side of the internal circulation water tank (6) and an internal circulation flow switch (12) sleeved on the surface of the internal circulation chilled water outlet (7).

3. A water-cooled dual-circulation chiller according to claim 1, characterized in that: The external circulation component also includes an external circulation water flow switch (13) sleeved on the surface of the external circulation cooling water return port (10), through which the cooling water status is monitored.

4. A water-cooled dual-circulation chiller according to claim 1, characterized in that: The front side of the frame (1) is fixedly connected to a computer board operation panel (14), and the entire system is controlled through the computer board operation panel (14).

5. A water-cooled dual-circulation chiller according to claim 4, characterized in that: A first high voltage meter (15) is provided on one side of the computer board operation panel (14), and a first low voltage meter (16) is provided at the bottom of the first high voltage meter (15).

6. A water-cooled dual-circulation chiller according to claim 5, characterized in that: The first low-pressure meter (16) is provided with a second high-pressure meter (17) at its bottom, and the second high-pressure meter (17) is provided with a second low-pressure meter (18) at its bottom.

7. A water-cooled dual-circulation chiller according to claim 6, characterized in that: The bottom of the second low pressure gauge (18) is equipped with a water flow pressure gauge (19), which monitors the water circulation pressure.

Images