Two-phase separation temperature testing device

Abstract

The utility model discloses a two-phase separation temperature testing device which comprises a testing table, the middle end of the upper surface of the testing table is fixedly connected with a temperature control box, the interior of the temperature control box is fixedly connected with a fixing frame, a high-pressure kettle is fixedly installed in the fixing frame, and the upper surface of the high-pressure kettle is fixedly connected with a feeding port. A feeding structure is fixedly connected to the upper surface of the testing table, a testing structure is fixedly connected to one side of the upper surface of the testing table, a water pump is fixedly connected to the other side of the upper surface of the testing table, a water conveying pipe is fixedly connected to the water outlet end of the water pump, and the other end of the water conveying pipe is fixedly connected to a temperature control box; the water inlet end of the water pump is fixedly connected with a water pumping pipe. According to the device, the temperature control box is arranged, so that the temperature in the device can be reduced, the two-phase separation temperature of a refrigerant is measured, the feeding structure and the testing structure are arranged, so that the oil content in the high-pressure kettle can be adjusted, and the two-phase separation temperature under different oil contents can be efficiently measured.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, in particular to a two-phase separation temperature testing device. Background Art

[0002] Refrigerant, commonly known as refrigerant, is a working fluid used to transfer heat energy and produce a cooling effect in refrigeration and air conditioning systems. It can be divided into primary refrigerant and secondary refrigerant based on its working method, and can be divided into natural refrigerant and synthetic refrigerant based on its material properties.

[0003] When conducting a refrigerant physical and chemical performance test, it is necessary to detect the two-phase separation temperature at different oil contents. However, conventional measuring equipment can only heat the autoclave and cannot measure the oil content at a lower temperature. It is also difficult to keep the pressure inside the autoclave stable during heating and cooling, and it is also difficult to adjust the oil content inside the autoclave. To address the above problems, the present invention provides a two-phase separation temperature testing device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a two-phase separation temperature testing device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The two-phase separation temperature testing device includes a test bench, wherein the middle end of the upper surface of the test bench is fixedly connected to a temperature control box, a fixing frame is fixedly connected to the interior thereof, a high pressure autoclave is fixedly installed inside the fixing frame, a feeding port is fixedly connected to the upper surface of the high pressure autoclave, a feeding structure is fixedly connected to the upper surface of the test bench, a test structure is fixedly connected to one side of the upper surface of the test bench, a water pump is fixedly connected to the other side of the upper surface of the test bench, a water outlet end of the water pump is fixedly connected to a water pipe, the other end of the water pipe is fixedly connected to the temperature control box, a water inlet end of the water pump is fixedly connected to a water pump, a lower end of one side of the temperature control box is fixedly connected to a drain pipe, and a pressure regulating structure is provided at the upper end of the surface of the high pressure autoclave.

[0007] As a further improvement of the present invention, the feeding structure includes a support frame fixedly connected to the upper surface of the test bench, a fixing ring is fixedly connected to the upper surface of the support frame, a refrigerant tank is provided on the upper surface of the fixing ring, a fluorine filling tube is fixedly connected to the front of the refrigerant tank, a first switch valve is provided on the surface of one end of the fluorine filling tube, and the other end of the fluorine filling tube is threadedly connected to the feeding port.

[0008] As a further improvement of the present invention, the test structure includes a placement seat fixedly connected to one side of the upper surface of the test bench, a measuring tank is inserted into the interior of the placement seat, a discharge pipe is fixedly connected to the upper surface of the measuring tank, and a second switch valve is provided on the surface of one end of the discharge pipe.

[0009] As a further improvement of the present invention, a discharge port is fixedly connected to one side of the upper surface of the autoclave, the upper end of the discharge port is threadedly connected to the discharge pipe, a feeding valve is provided on the surface of the feeding port, and a discharge valve is provided on the surface of the discharge port.

[0010] As a further improvement of the present invention, the front of the temperature control box is fixedly connected with a visual glass, and the surface of the autoclave is fixedly connected with a high-pressure glass.

[0011] As a further improvement of the present invention, a pressure gauge is fixedly connected to one side of the temperature control box, and a temperature control gauge is fixedly connected to the upper surface of the autoclave.

[0012] The pressure regulating structure comprises a threaded hole opened on the surface of the autoclave, the inner thread of the threaded hole is connected with a pressure regulating bolt, and a rubber sealing layer is provided on one side of the inner wall of the autoclave.

[0013] Beneficial effects of the utility model:

[0014] By setting up a temperature control box, when in use, connect the water pump to the cold water source, start the water pump to input cold water from the water pipe into the temperature control box, and at the same time open the valve of the drain pipe to discharge the water with higher temperature in the temperature control box, allowing the cold water to take away the heat of the autoclave, thereby effectively cooling the autoclave, allowing the device to lower the temperature inside the device, and thus measure the two-phase separation temperature of the refrigerant.

[0015] By setting up a pressure regulating structure, when in use, the pressure inside the autoclave is observed by a pressure gauge at the same time, and the air pressure inside the autoclave is fine-tuned by rotating the pressure regulating bolt and moving it in the threaded hole, so that the device can ensure that the air pressure inside the autoclave is constant during testing, thereby increasing the accuracy of the test data.

[0016] By setting up a feeding structure and a testing structure, when in use, open the first switch valve and the feeding valve to input the refrigerant into the autoclave, start the water pump to reduce the temperature in the autoclave to below sixteen degrees, and after the refrigerant is injected, weigh the refrigerant tank and the fluorine filling tube again to obtain the weight of the refrigerant filled, and then open the second switch valve and the discharge valve to release the refrigerant until the oil content in the autoclave reaches the measured value, observe the state of the liquid in the autoclave at this time, if it is clear, lower the temperature in the autoclave by circulating cold water, and when obvious flocculent turbidity appears, record the liquid temperature in the autoclave at this time, which is the two-phase separation temperature under the oil content, so that the device can adjust the oil content in the autoclave, thereby efficiently measuring the two-phase separation temperature under different oil contents, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the two-phase separation temperature testing device proposed in the present invention;

[0018] Figure 2 This is a schematic structural diagram of the feeding structure of the two-phase separation temperature testing device proposed by the present invention;

[0019] Figure 3 This is a structural schematic diagram of the test bench of the two-phase separation temperature testing device proposed in the present invention.

[0020] Figure 4 This is a schematic diagram of the voltage regulating structure of the test bench of the two-phase separation temperature testing device proposed in the present invention.

[0021] In the figure: 1 test bench, 2 temperature control box, 3 fixing frame, 4 autoclave, 5 feeding port, 6 water pump, 7 water pipe, 8 suction pipe, 9 drainage pipe, 10 support frame, 11 fixing ring, 12 refrigerant tank, 13 fluorine filling pipe, 14 first switch valve, 15 placement seat, 16 measuring tank, 17 discharge pipe, 18 second switch valve, 19 discharge port, 20 feeding valve, 21 discharge valve, 22 sight glass, 23 high-pressure glass, 24 pressure gauge, 25 temperature control meter, 26 threaded hole, 27 pressure regulating bolt, 28 rubber sealing layer. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figures 1-4 The two-phase separation temperature testing device includes a test bench 1. The middle end of the upper surface of the test bench 1 is fixedly connected to a temperature control box 2, and a fixing frame 3 is fixedly connected to the inside of the test bench 1. A high-pressure autoclave 4 is fixedly installed inside the fixing frame 3. The upper surface of the high-pressure autoclave 4 is fixedly connected to a feeding port 5. The upper surface of the test bench 1 is fixedly connected to a feeding structure. One side of the upper surface of the test bench 1 is fixedly connected to a testing structure. The other side of the upper surface of the test bench 1 is fixedly connected to a water pump 6. The water outlet end of the water pump 6 is fixedly connected to a water pipe 7. The other end of the water pipe 7 is fixedly connected to the temperature control box 2. The water inlet end of the water pump 6 is fixedly connected to a water pump 8. The lower end of one side of the temperature control box 2 is fixedly connected to a drain pipe 9. The upper end of the surface of the high-pressure autoclave 4 is provided with a pressure regulating structure.

[0024] In the present utility model, the feeding structure includes a support frame 10 fixedly connected to the upper surface of the test bench 1, a fixing ring 11 fixedly connected to the upper surface of the support frame 10, a refrigerant tank 12 is provided on the upper surface of the fixing ring 11, a fluorine filling tube 13 is fixedly connected to the front of the refrigerant tank 12, a first switch valve 14 is provided on the surface of one end of the fluorine filling tube 13, and the other end of the fluorine filling tube 13 is threadedly connected to the feeding port 5, and the refrigerant is input into the autoclave 4 through the refrigerant tank 12 and the fluorine filling tube 13;

[0025] The test structure includes a placement seat 15 fixedly connected to one side of the upper surface of the test bench 1, a measuring tank 16 is inserted into the placement seat 15, a discharge pipe 17 is fixedly connected to the upper surface of the measuring tank 16, and a second switch valve 18 is provided on one end of the surface of the discharge pipe 17. A discharge port 19 is fixedly connected to one side of the upper surface of the autoclave 4, and the upper end of the discharge port 19 is threadedly connected to the discharge pipe 17. A feeding valve 20 is provided on the surface of the feeding port 5, and a discharge valve 21 is provided on the surface of the discharge port 19. The refrigerant in the autoclave 4 is absorbed through the measuring tank 16 and the discharge pipe 17;

[0026] A visual glass 22 is fixedly connected to the front of the temperature control box 2, a high-pressure glass 23 is fixedly connected to the surface of the autoclave 4, a pressure gauge 24 is fixedly connected to one side of the temperature control box 2, and a temperature control gauge 25 is fixedly connected to the upper surface of the autoclave 4. The state inside the autoclave 4 can be observed through the visual glass 22 and the high-pressure glass 23, and the pressure and temperature of the device can be monitored through the pressure gauge 24 and the temperature control gauge 25.

[0027] The pressure regulating structure includes a threaded hole 26 opened on the surface of the autoclave 4, and the internal thread of the threaded hole 26 is connected to a pressure regulating bolt 27. A rubber sealing layer 28 is provided on one side of the inner wall of the autoclave 4. The pressure inside the autoclave 4 is fine-tuned by the setting of the pressure regulating bolt 27, and the sealing of the autoclave 4 is ensured by the rubber sealing layer 28.

[0028] When the utility model is used, first measure the weight of the refrigerant tank 12 and the fluorine filling tube 13, place the refrigerant tank 12 on the fixing ring 11 and connect the fluorine filling tube 13 to the feeding port 5, open the first switch valve 14 and the feeding valve 20 to input the refrigerant into the autoclave 4, then connect the water pump 8 to the cold water source, start the water pump 6 to input the cold water from the water pipe 7 into the temperature control box 2, and at the same time open the valve of the drain pipe 9 to discharge the higher temperature water source in the temperature control box 2, so that the cold water can take away the heat of the autoclave 4, thereby effectively cooling the autoclave 4, and at the same time observe the pressure in the autoclave 4 through the pressure gauge 24, and adjust the air pressure inside the autoclave 4 slightly by rotating the pressure regulating bolt 27 to move in the threaded hole 26. Adjust to ensure that the air pressure in the autoclave 4 is constant during the test. Then, after the refrigerant is injected, close the first switch valve 14 and the feeding valve 20, remove the refrigerant tank 12 and the fluorine filling tube 13 and weigh them again to obtain the weight of the refrigerant filled. Then, open the second switch valve 18 and the discharge valve 21 to release the refrigerant until the oil content in the autoclave 4 reaches the measured value. Close the second switch valve 18 and the discharge valve 21 and weigh the weight of the measuring tank 16 to obtain the oil content in the autoclave 4. Observe the state of the liquid in the autoclave 4 at this time through the high-pressure glass 23. If it is clear, lower the temperature in the autoclave by starting the water pump 6 again. When obvious flocculent turbidity appears, record the liquid temperature of the autoclave 4 at this time, which is the two-phase separation temperature under the oil content.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A two-phase separation temperature test device, comprising a test bench (1), characterized in that: The middle end of the upper surface of the test bench (1) is fixedly connected to a temperature control box (2), and a fixed frame (3) is fixedly connected therein. A high pressure autoclave (4) is fixedly installed inside the fixed frame (3). A feeding port (5) is fixedly connected to the upper surface of the high pressure autoclave (4). A feeding structure is fixedly connected to the upper surface of the test bench (1). A test structure is fixedly connected to one side of the upper surface of the test bench (1). A water pump (6) is fixedly connected to the other side of the upper surface of the test bench (1). The water outlet end of the water pump (6) is fixedly connected to a water pipe (7). The other end of the water pipe (7) is fixedly connected to the temperature control box (2). The water inlet end of the water pump (6) is fixedly connected to a water pump (8). The lower end of one side of the temperature control box (2) is fixedly connected to a drain pipe (9). The upper end of the surface of the high pressure autoclave (4) is provided with a pressure regulating structure.

2. The two-phase separation temperature testing device according to claim 1, characterized in that: The feeding structure comprises a support frame (10) fixedly connected to the upper surface of the test bench (1), a fixing ring (11) fixedly connected to the upper surface of the support frame (10), a refrigerant tank (12) provided on the upper surface of the fixing ring (11), a fluorine filling tube (13) fixedly connected to the front of the refrigerant tank (12), a first switch valve (14) provided on the surface of one end of the fluorine filling tube (13), and the other end of the fluorine filling tube (13) threadedly connected to the feeding port (5).

3. The two-phase separation temperature testing device according to claim 1, characterized in that: The test structure comprises a placement seat (15) fixedly connected to one side of the upper surface of the test bench (1); a measuring tank (16) is inserted into the interior of the placement seat (15); a discharge pipe (17) is fixedly connected to the upper surface of the measuring tank (16); and a second switch valve (18) is provided on the surface of one end of the discharge pipe (17).

4. The two-phase separation temperature testing device according to claim 3, characterized in that: A discharge port (19) is fixedly connected to one side of the upper surface of the autoclave (4), and the upper end of the discharge port (19) is threadedly connected to the discharge pipe (17). A feeding valve (20) is provided on the surface of the feeding port (5), and a discharge valve (21) is provided on the surface of the discharge port (19).

5. The two-phase separation temperature testing device according to claim 1, characterized in that: The front of the temperature control box (2) is fixedly connected with a visual glass (22), and the surface of the autoclave (4) is fixedly connected with a high-pressure glass (23).

6. The two-phase separation temperature testing device according to claim 1, characterized in that: A pressure gauge (24) is fixedly connected to one side of the temperature control box (2), and a temperature control gauge (25) is fixedly connected to the upper surface of the autoclave (4).

7. The two-phase separation temperature testing device according to claim 1, characterized in that: The pressure regulating structure comprises a threaded hole (26) provided on the surface of the autoclave (4), the inner thread of the threaded hole (26) is connected to a pressure regulating bolt (27), and a rubber sealing layer (28) is provided on one side of the inner wall of the autoclave (4).

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