Piston compressor for F142b production
By designing a piston compressor with a primary and secondary cylinder, the F142b gas is compressed and cooled in two stages, solving the problem of gas pressure mismatch and achieving gas pressure adaptation and efficient compressor operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-13
AI Technical Summary
During the production of F142b, the gas pressure is relatively high, which does not match the gas pressure required for the next process, resulting in compatibility issues.
A piston compressor comprising a primary cylinder and a secondary cylinder was designed. F142b gas is compressed through the secondary cylinder, and a cooler is installed during the compression process to reduce the gas pressure. The pressure data is monitored in real time using the central control instrument panel to adjust the pressure range.
The F142b gas pressure was effectively reduced, making it suitable for the next process, while also reducing compressor power consumption and ensuring production stability through real-time pressure monitoring.
Smart Images

Figure CN223991828U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor technology, and more specifically, to a piston compressor for the production of F142b. Background Technology
[0002] F142b, a widely used high-temperature refrigerant, is primarily used in high-temperature refrigeration and air conditioning systems (high-temperature air conditioning), heat pumps, and as an important component in various compound refrigerants. It is also an intermediate in polymer (plastic) foaming, thermostatic control switches, and aerospace propellants, and is used as a chemical raw material. However, as an important refrigerant, F142b operates at relatively high pressure during production, which is incompatible with the gas pressure required in the next process. Utility Model Content
[0003] This application provides a piston compressor for the production of F142b, which solves the problem that the F142b gas pressure is relatively high during the production process and cannot be matched with the gas pressure required by the next process.
[0004] This application provides a piston compressor for the production of F142b, including an air inlet, a housing, a primary cylinder and a secondary cylinder, wherein the housing is connected to the primary cylinder and the secondary cylinder, and the housing is connected to an electric motor via a flywheel;
[0005] The air inlet is connected to a primary air intake buffer tank. The primary air intake buffer tank is connected to the primary cylinder via a pipe. The primary cylinder is connected to a primary cooler via a primary cylinder exhaust pipe. The outlet of the primary cooler is connected to a secondary air intake buffer tank. The secondary air intake buffer tank is connected to the secondary cylinder. The secondary cylinder is connected to a secondary cooler via a pipe. The outlet of the secondary cooler is connected to a secondary exhaust buffer tank. The secondary exhaust buffer tank is connected to an exhaust port.
[0006] Preferably, both the primary cooler and the secondary cooler are connected to an inlet pipe and a drain pipe.
[0007] Preferably, the field instrument panel is electrically connected to the central control instrument panel.
[0008] Preferably, the field instrument panel includes a primary inlet pressure transmitter, a primary outlet pressure transmitter, a secondary outlet pressure transmitter, an inlet water pressure transmitter, and an oil pressure transmitter.
[0009] Preferably, the central control instrument panel includes an inlet pressure gauge, an inlet pressure gauge sensor, a row of pressure gauges, a row of pressure gauge sensors, a second row of pressure gauges, a second row of pressure gauge sensors, a water pressure gauge, a water pressure gauge sensor, an oil pressure gauge, and an oil pressure gauge sensor.
[0010] Preferably, the fuselage is fixedly mounted on the frame.
[0011] Preferably, both the primary cylinder and the secondary cylinder are provided with inspection ports.
[0012] As can be seen from the above technical solution, this application provides a piston compressor for F142b production. When the motor is started, F142b gas enters the first-stage intake buffer tank from the intake port, and then enters the first-stage cylinder for preliminary compression. After preliminary compression, the gas enters the first-stage cooler from the exhaust pipe of the first-stage cylinder. The cooled gas then enters the second-stage cylinder for further compression after passing through the second-stage intake buffer tank. The gas pressure is reduced to 0-0.8 MPa after the second compression. The gas then enters the second-stage cooler for further cooling and then enters the second-stage exhaust buffer tank. Finally, the gas in the second-stage exhaust buffer tank is discharged from the exhaust port for the next process. Throughout the compression process, the central control instrument panel monitors various pressure data in real time through connection with the field instrument panel, and adjusts the field pressure in a timely manner when the pressure value exceeds the range.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model uses a primary cylinder and a secondary cylinder to compress the produced F142b gas in two stages, reducing the gas pressure for use in the next process.
[0015] 2. This utility model is equipped with a cooler to cool the compressed gas and reduce the power consumption of the compressor.
[0016] 3. During the entire compression process, the central control instrument panel monitors various pressure data in real time through its connection with the field instrument panel, and adjusts the field pressure in a timely manner when the pressure value exceeds the range.
[0017] In summary, a piston compressor for F142b production is designed with a primary cylinder and a secondary cylinder to perform secondary compression on the produced F142b gas, thereby reducing the gas pressure for use in the next process. A cooler is also included to cool the compressed gas and reduce the compressor's power consumption. Attached Figure Description
[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0019] Figure 1 A schematic diagram of the structure of a piston compressor for the production of F142b provided by this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of a piston compressor instrument for the production of F142b provided by this utility model.
[0021] The reference numerals in the detailed embodiments are as follows:
[0022] 1. Air inlet; 2. First-stage air inlet buffer tank; 3. First-stage cylinder; 4. First-stage cylinder exhaust pipe; 5. First-stage cooler; 6. Second-stage air inlet buffer tank; 7. Second-stage cylinder; 8. Second-stage cooler; 9. Second-stage exhaust buffer tank; 10. Exhaust port; 11. Water inlet pipe; 12. Drain pipe; 13. Machine body; 14. Electric motor; 15. Flywheel; 16. Field instrument panel; 17. First-stage inlet pressure transmitter; 18. First-stage outlet pressure transmitter; 19. 20. Secondary pressure transmitter; 21. Inlet water pressure transmitter; 22. Oil pressure transmitter; 23. Inspection port; 24. Central control instrument panel; 25. First inlet pressure gauge; 26. First row pressure gauge; 27. First row pressure gauge sensor; 28. Second row pressure gauge; 29. Second row pressure gauge sensor; 30. Water pressure gauge; 31. Water pressure gauge sensor; 32. Oil pressure gauge; 33. Oil pressure gauge sensor; 34. Frame. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0024] See Figure 1-2 This application proposes a piston compressor for F142b production. The invention addresses the problem that the high pressure of F142b gas during production is incompatible with the gas pressure required for the next process. By designing a primary and secondary cylinder, the produced F142b gas is compressed in two stages, reducing its pressure for use in the next process. A cooler is incorporated to cool the compressed gas, thereby reducing compressor power consumption.
[0025] Specifically, a piston compressor for the production of F142b includes an inlet 1, a casing 13, a primary cylinder 3, and a secondary cylinder 7. The casing 13 connects the primary cylinder 3 and the secondary cylinder 7, and the casing 13 is connected to an electric motor 14 via a flywheel 15. The inlet 1 is connected to a primary intake buffer tank 2, which is connected to the primary cylinder 3 via a pipe. The primary cylinder 3 is connected to a primary cooler 5 via a primary cylinder exhaust pipe 4. The outlet of the primary cooler 5 is connected to a secondary intake buffer tank 6, which is connected to the secondary cylinder 7. The secondary cylinder 7 is connected to... A secondary cooler 8 is connected to the air intake of the primary cooler 5. A secondary exhaust buffer tank 9 is connected to the outlet of the secondary cooler 8. An exhaust port 10 is connected to the secondary exhaust buffer tank 9. Both the primary cooler 5 and the secondary cooler 8 are connected to inlet pipes 11 and drain pipes 12. When the motor 14 is started, F142b gas enters the primary intake buffer tank 2 through the inlet 1. From the primary intake buffer tank 2, it enters the primary cylinder 3 for preliminary compression. The high-temperature gas after preliminary compression enters the primary cooler 5 through the primary cylinder exhaust pipe 4. The cooled gas then passes through the secondary intake buffer tank 6 and enters the secondary cylinder 7. The gas is compressed again, and the pressure is reduced to 0-0.8 MPa after the second compression. The high-temperature gas after the second compression enters the secondary cooler 8 for cooling and then enters the secondary exhaust buffer tank 9. The gas in the secondary exhaust buffer tank 9 is finally discharged from the exhaust port 10 for the next process. The field instrument panel 16 is electrically connected to the central control instrument panel 23. The field instrument panel 16 includes a primary inlet pressure transmitter 17, a primary outlet pressure transmitter 18, a secondary outlet pressure transmitter 19, an inlet water pressure transmitter 20, and an oil pressure transmitter 21. The central control instrument panel 23 includes an inlet pressure gauge 24 and an inlet pressure gauge sensor 2. 5. Pressure gauge 26, pressure gauge sensor 27, pressure gauge 28, pressure gauge sensor 29, water pressure gauge 30, water pressure gauge sensor 31, oil pressure gauge 32, and oil pressure gauge sensor 33. During the entire compression process, the central control instrument panel 23 monitors various pressure data in real time through its connection with the field instrument panel 16. When the pressure value exceeds the range, the field pressure is adjusted in a timely manner. Both the first-stage cylinder 3 and the second-stage cylinder 7 are equipped with inspection ports 22 for use when inspection is required or a fault occurs. The machine body 13 is fixedly installed on the frame 34 to provide stability.
[0026] As can be seen from the above technical solution, when a piston compressor used for F142b production is in use, the motor 14 is started, and F142b gas enters the first-stage intake buffer tank 2 from the intake port 1. From the first-stage intake buffer tank 2, it enters the first-stage cylinder 3 for preliminary compression. After preliminary compression, the gas enters the first-stage cooler 5 from the first-stage cylinder exhaust pipe 4. After cooling, the gas enters the second-stage intake buffer tank 6 and then enters the second-stage cylinder 7 for further compression. The gas pressure is 0-0.8 MPa after being compressed twice. The gas is then cooled in the second-stage cooler 8 and enters the second-stage exhaust buffer tank 9. Finally, the gas in the second-stage exhaust buffer tank 9 is discharged from the exhaust port 10 for the next process. During the entire compression process, the central control instrument panel 23 monitors various pressure data in real time through the connection with the field instrument panel 16, and adjusts the field pressure in a timely manner when the pressure value exceeds the range.
[0027] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the applications disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and incorporate common knowledge or customary techniques in the art disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.
[0028] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.
Claims
1. A piston compressor for F142b production, characterized by: Including air inlet (1), fuselage (13), first cylinder (3) and second cylinder (7), the fuselage (13) is connected with the first cylinder (3) and the second cylinder (7), the fuselage (13) is connected with motor (14) through flywheel (15); The air inlet (1) is connected with a first air inlet buffer tank (2), the first air inlet buffer tank (2) is connected with the first cylinder (3) through a pipeline, the first cylinder (3) is connected with a first cooler (5) through a first cylinder exhaust pipe (4), the air outlet of the first cooler (5) is connected with a second air inlet buffer tank (6), the second air inlet buffer tank (6) is connected with the second cylinder (7), the second cylinder (7) is connected with a second cooler (8) through a pipeline, the air outlet of the second cooler (8) is connected with a second exhaust buffer tank (9), and the second exhaust buffer tank (9) is connected with an exhaust port (10).
2. A piston compressor for F142b production according to claim 1, characterized in that: The first cooler (5) and the second cooler (8) are connected with water inlet pipe (11) and drain pipe (12).
3. A piston compressor for F142b production according to claim 1 characterized in that: The field instrument panel (16) is electrically connected with the central control instrument panel (23).
4. A piston compressor for F142b production according to claim 3, characterized in that: The field instrument panel (16) includes a first inlet pressure transmitter (17), a first outlet pressure transmitter (18), a second outlet pressure transmitter (19), a water inlet pressure transmitter (20) and an oil pressure transmitter (21).
5. A piston compressor for F142b production according to claim 4, characterized in that: The central control instrument panel (23) includes an inlet pressure gauge (24), an inlet pressure gauge sensor (25), an outlet pressure gauge (26), an outlet pressure gauge sensor (27), a second outlet pressure gauge (28), a second outlet pressure gauge sensor (29), a water pressure gauge (30), a water pressure gauge sensor (31), an oil pressure gauge (32) and an oil pressure gauge sensor (33).
6. A piston compressor for F142b production according to claim 1 characterized in that: The fuselage (13) is fixedly installed on the rack (34).
7. A piston compressor for F142b production as claimed in claim 1 characterized in that: The first cylinder (3) and the second cylinder (7) are provided with an access hole (22).