Ionic liquid compressor

Abstract

The application discloses an ionic liquid compressor, which comprises an end cover with an air inlet and an air outlet, a base connected with the end cover, an air inlet cavity, an air outlet cavity and an air flow hole, the air inlet cavity is communicated with the air inlet, the air outlet cavity is communicated with the air outlet, the air flow hole is communicated with the air inlet cavity and the air outlet cavity respectively, an air inlet valve is arranged in the air inlet cavity, an air outlet valve is arranged in the air outlet cavity, a cylinder is connected with the base and has a first cavity, the first cavity is communicated with the air flow hole, a piston is arranged in the first cavity and is in sealing cooperation with the inner wall of the cylinder in the circumferential direction, one end of the piston close to the air flow hole is provided with a foamed metal, the foamed metal is immersed in ionic liquid, and a driving motor is arranged at the end of the piston away from the air flow hole and drives the piston to reciprocate. The application improves the overall performance and operation stability of the ionic liquid compressor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressors, in particular to an ionic liquid compressor. BACKGROUND

[0002] As a new type of compressor technology, ionic liquid compressors have received extensive attention in recent years in the fields of chemical industry, refrigeration, air conditioning, and energy conversion. These compressors utilize the unique physical and chemical properties of ionic liquids, such as high thermal stability, low vapor pressure, good thermal conductivity, and electrochemical stability, to achieve an efficient and environmentally friendly compression process. However, traditional ionic liquid compressors still face some challenges in design and operation.

[0003] Firstly, the displacement adjustment of the compressor often relies on complex mechanical structures or external control systems, which not only increases the complexity and cost of the system, but also may affect the response speed and stability of the compressor. Therefore, it is particularly important to develop a compressor that can flexibly adjust the displacement to adapt to different working conditions.

[0004] Secondly, during the compression process, the gas blow-off effect on the ionic liquid may cause liquid level fluctuations, which in turn affects the sealing performance of the compressor. This not only reduces the performance of the compressor, but also may cause safety hazards. Therefore, how to reduce the gas blow-off effect on the liquid and reduce the liquid level fluctuations becomes a key to improving the performance of the ionic liquid compressor.

[0005] In addition, the heat exchange efficiency between the piston and the ionic liquid in the ionic liquid compressor directly affects the thermal efficiency and operating stability of the compressor. Traditional piston structures often have difficulty achieving efficient heat exchange, resulting in uneven internal temperatures in the compressor and affecting the overall performance of the compressor.

[0006] To address the above problems, the existing cooling system and control system of the ionic liquid compressor both achieve cooling of the compression chamber and detection and control of displacement by introducing additional sensors or other devices, increasing the complexity of the system; or through the capture of liquid by porous media to achieve the recovery of entrained ionic liquid, without fundamentally solving the problem of entrainment of ionic liquid.

[0007] Therefore, the skilled person in the art is committed to providing an ionic liquid compressor that optimizes the displacement adjustment mechanism of the compressor, reduces the gas blow-off effect on the liquid, and enhances the heat exchange efficiency between the piston and the ionic liquid, thereby improving the overall performance and operating stability of the ionic liquid compressor. SUMMARY

[0008] In view of the defects in the prior art, the technical problem to be solved by the present application is to provide an ionic liquid compressor that can improve the overall performance and operating stability.

[0009] To achieve the above object, the application provides an ionic liquid compressor, comprising:

[0010] an end cover having an air inlet and an air outlet;

[0011] a base connected with the end cover, having an air inlet cavity, an air outlet cavity and an air flow hole, the air inlet cavity being communicated with the air inlet, the air outlet cavity being communicated with the air outlet, the air flow hole being communicated with the air inlet cavity and the air outlet cavity respectively, the air inlet cavity being provided with an air inlet valve, and the air outlet cavity being provided with an air outlet valve;

[0012] a cylinder connected with the base, having a first cavity communicated with the air flow hole;

[0013] a piston arranged in the first cavity and capable of reciprocating along the first cavity, the periphery of the piston being sealingly matched with the inner wall of the cylinder, one end of the piston close to the air flow hole being provided with a foam metal, and the foam metal being immersed in ionic liquid;

[0014] a driving motor arranged at the end of the piston away from the air flow hole and driving the piston to reciprocate.

[0015] Preferably, the air inlet valve and the air outlet valve are disc valves pre-pressed by springs.

[0016] Preferably, the air inlet valve and the air outlet valve are reed valves.

[0017] Preferably, the outer wall of the cylinder is provided with heat dissipation fins.

[0018] Preferably, the piston and the cylinder have a first matching surface and a second matching surface, the first matching surface being sealingly matched, and the second matching surface being provided with a gas communication groove.

[0019] Preferably, the driving motor is a linear motor.

[0020] Preferably, the driving motor comprises a motor rotor and a motor stator, the motor stator being connected with the cylinder through a motor end plate, and the motor rotor being connected with the end of the piston.

[0021] Preferably, the driving motor further comprises a motor rear cover connected to the motor stator, and the motor rear cover has a second cavity in which the motor rotor is movable.

[0022] Preferably, the motor rotor and the motor rear cover are connected through a resonance spring.

[0023] Preferably, the foam metal is one or more of foam copper, foam aluminum and foam nickel.

[0024] The present application has at least the following beneficial technical effects:

[0025] The ionic liquid compressor of the present application reduces the blowing effect of gas on liquid by setting the foam metal on the piston, enhances the effectiveness of the ionic liquid seal, reduces the entrainment and blowing of ionic liquid under the action of strong gas flow, improves the heat exchange effect between the ionic liquid and the compressed gas, and significantly improves the overall performance and operation stability of the ionic liquid compressor. The present application uses a linear motor, optimizes the displacement adjustment mechanism, and simplifies the control system.

[0026] The concept, specific structure and technical effects of the present application will be further described below with reference to the accompanying drawings, so as to fully understand the purpose, features and effects of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the ionic liquid compressor of the embodiment of the present application.

[0028] In the figure, 1 is an end cover, 2 is a base, 3 is a foam metal, 4 is a cylinder, 41 is a heat dissipation fin, 42 is a gas communication groove, 5 is a piston, 51 is a first mounting hole of a resonance spring, 52 is a motor mover, 6 is a motor end plate, 7 is a motor stator, 8 is a resonance spring, 9 is a motor rear cover, 91 is a second mounting hole of the resonance spring, 10 is an exhaust valve, 11 is an intake valve, 12 is a compression chamber, and 13 is an ionic liquid surface. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present application are described below to make the technical content more clear and easy to understand. The present application can be embodied in many different forms of embodiments, and the protection scope of the present application is not limited to the embodiments mentioned in the text.

[0030] In the drawings, the same components have the same reference numerals, and components with similar structures or functions have similar reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present application does not limit the size and thickness of each component. In order to make the drawing clearer, the thickness of some components is appropriately exaggerated in some places in the drawing.

[0031] The present application provides an ionic liquid compressor, which reduces the blowing effect of gas on liquid by embedding foam metal on the top of the piston and using a linear motor with variable stroke, strengthens the heat exchange efficiency between the piston and the ionic liquid, optimizes the displacement adjustment mechanism of the compressor, and thus improves the overall performance and operation stability of the ionic liquid compressor.

[0032] As Figure 1The structure of the ion liquid compressor of the embodiment is shown in the structural diagram, and the ion liquid compressor of the embodiment comprises an end cover 1, a base 2, a cylinder 4, a piston 5 and a driving motor. The end cover 1 and the base 2 form an air inlet and air outlet mechanism. The gas is compressed by the piston 5 in the cylinder 4, and the piston 5 is driven by the driving motor.

[0033] Specifically, the end cover 1 is provided with an air inlet and an air outlet. The uncompressed gas enters from the air inlet, and the compressed gas is discharged from the air outlet. In the embodiment, the air inlet and the air outlet are both perpendicular to the end cover 1 and penetrate the end cover 1.

[0034] The base 2 is connected with the end cover 1, and specifically, the base 2 and the end cover 1 can be connected in a partially nested manner. The base 2 is provided with an air inlet cavity, an air outlet cavity and an airflow hole. The air inlet cavity and the air outlet cavity are located on the side close to the end cover 1, and the airflow hole is located on the side opposite to the end cover 1. The air inlet cavity, the air outlet cavity and the airflow hole each do not penetrate the base 2. The air inlet cavity is in communication with the air inlet of the end cover 1, the air outlet cavity is in communication with the air outlet of the end cover 1, and the airflow hole is in communication with the air inlet cavity and the air outlet cavity respectively. In this way, the uncompressed gas entering from the air inlet enters the airflow hole through the air inlet cavity, and the compressed gas flowing out of the airflow hole flows out through the air outlet cavity and the air outlet. In order to facilitate the control of the airflow, an air inlet valve 11 is arranged in the air inlet cavity, and an air outlet valve 10 is arranged in the air outlet cavity. The inflow of the uncompressed gas and the discharge of the compressed gas are realized through the sequential operation of the air inlet valve 11 and the air outlet valve 10.

[0035] In the embodiment, the air inlet valve 11 and the air outlet valve 10 can be disc-shaped valves, which are pre-pressed and sealed by springs. In another embodiment, the air inlet valve 11 and the air outlet valve 10 can also be set as reed valves.

[0036] The cylinder 4 is arranged on the side of the base 2 where the airflow hole is located. The cylinder 4 is connected with the base 2, and specifically, the cylinder 4 and the base 2 can be connected in a partially nested manner. The inside of the cylinder 4 has a first cavity. The first cavity is in communication with the airflow hole of the base 2, so that the gas flowing into the airflow hole can enter the first cavity of the cylinder 4, and the gas in the first cavity can be discharged from the airflow hole.

[0037] The piston 5 is arranged in the first cavity of the cylinder 4. The piston 5 can reciprocate along the cylinder 4. The piston 5 is in sealing cooperation with the inner wall of the cylinder 4. In this way, a compression cavity 12 is formed between the inner wall of the cylinder 4, the end of the piston 5 and the base 2. The size of the compression cavity 12 is changed by the reciprocating movement of the piston 5, so that the gas in the compression cavity 12 is compressed.

[0038] The end of the piston 5 close to the base 2 is provided with a foamed metal 3 immersed in the ionic liquid, so that the piston 5 becomes an ionic liquid piston. The ionic liquid surface 13 is higher than the foamed metal 3, and the ionic liquid can be blocked through the foamed metal 3, so as to reduce the blowing effect of the gas flow on the ionic liquid and the fluctuation of the liquid surface when the gas flow enters the cylinder 4, improve the sealing effect of the ionic liquid, and reduce the entrainment of the exhaust gas on the liquid.

[0039] In the embodiment, the foamed metal 3 is of a porous structure, and the surface tension of the liquid in the foamed metal 3 makes the liquid film have stronger adhesion and not easy to be broken under the disturbance of the gas flow. The foamed metal 3 can be made of foamed copper, foamed aluminum, foamed nickel or other porous foamed materials, and the foamed metal 3 is connected with the piston 5 in a welding manner.

[0040] The inner wall of the cylinder 4 and the piston 5 are stepped, the piston 5 and the cylinder 4 have two matching surfaces, the first matching surface close to the compression cavity 12 realizes sealing to avoid leakage of the gas during compression, and the second matching surface away from the compression cavity 12 is provided with a gas communication groove 42 to prevent another compression space from being formed between the cylinder 4 and the piston 5, so as to improve the compression efficiency.

[0041] The foamed metal 3 at the top of the piston 5 can strengthen the heat exchange between the ionic liquid and the piston 5 and between the ionic liquid and the compressed gas, reduce the temperature rise in the compression process, and improve the compression efficiency. Therefore, the cylinder 4 is provided with a heat dissipation fin 41 to enhance the heat dissipation of the cylinder 4, so that the heat generated in the compression process can be dissipated in time.

[0042] The driving motor is arranged at the end of the piston 5 to drive the movement of the piston 5 and realize the compression of the gas. In the embodiment, the driving motor is a free mover type linear motor to realize the sensorless control of the stroke of the piston 5.

[0043] Specifically, the driving motor includes a motor mover 52, a motor stator 7, a motor end plate 6, and a motor rear cover 9. The motor mover 52 is arranged at the end of the piston 5, the motor stator 7 is fixed on the cylinder 4 through the motor end plate 6, and the motor rear cover 9 is connected to the motor stator 7. The motor rear cover 9 is provided with a second cavity, and the motor mover 52 moves in the second cavity of the motor rear cover 9.

[0044] The motor mover 52 is provided with a resonant spring first mounting hole 51, the motor rear cover 9 is provided with a resonant spring second mounting hole 91, and the two ends of the resonant spring 8 are connected to the resonant spring first mounting hole 51 and the resonant spring second mounting hole 91 respectively. The resonant spring 8 and the motor mover 52 together constitute the driving component of the piston 5.

[0045] According to the operation characteristics of the linear motor, the motion state of the motor mover 52 is calculated in real time through electric signals, i.e. current, voltage, power, frequency and other parameters, so as to obtain the position of the piston 5 in the cylinder 4, realize stepless adjustment of the compressor stroke, and reduce the complexity of the compressor stroke control system.

[0046] The ion liquid compressor of the embodiment is of a linear structure formed by the end cover 1, the base 2, the cylinder 4, the piston 5 and the motor mover 52. The gas entering the air inlet of the end cover 1 enters the compression cavity 12 through the air inlet cavity and the airflow hole of the base 2, forms compressed gas after working compression by the piston 5, and is discharged through the airflow hole and the air outlet cavity of the base 2 and the air outlet of the end cover 1, thereby completing a compression process.

[0047] The preferred embodiments of the application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor based on the concept of the application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment based on the existing technology according to the concept of the application shall be within the protection scope defined by the claims.

Claims

1. An ionic liquid compressor, characterized in that: include: an end cap having an air inlet and an air outlet; a base connected to the end cover, having an air inlet cavity, an exhaust cavity, and air flow holes, wherein the air inlet cavity is in communication with the air inlet port, the exhaust cavity is in communication with the exhaust port, the air flow holes are in communication with the air inlet cavity and the exhaust cavity, respectively, an air inlet valve is provided in the air inlet cavity, and an exhaust valve is provided in the exhaust cavity; a cylinder connected to the base, having a first cavity connected to the air flow hole; a piston disposed in the first cavity, capable of reciprocating along the first cavity and circumferentially sealed against the inner wall of the cylinder; a metal foam is disposed on one end of the piston adjacent to the air flow hole, the metal foam being immersed in the ionic liquid; A driving motor is provided at one end of the piston away from the air flow hole, and drives the piston to reciprocate.

2. The ionic liquid compressor according to claim 1, wherein The air inlet valve and the exhaust valve are disc-shaped valves, and the disc-shaped valves are sealed by spring pre-compression.

3. The ionic liquid compressor according to claim 1, wherein The air inlet valve and the exhaust valve are reed valves.

4. The ionic liquid compressor according to claim 1, wherein The outer wall of the cylinder is provided with heat dissipation fins.

5. The ionic liquid compressor according to claim 1, wherein The piston and the cylinder have a first mating surface and a second mating surface, the first mating surface is a sealed mating surface, and the second mating surface is provided with a gas communication groove.

6. The ionic liquid compressor according to claim 1, wherein The driving motor is a linear motor.

7. The ionic liquid compressor according to claim 6, characterized in that The driving motor includes a motor mover and a motor stator. The motor stator is connected to the cylinder through a motor end plate, and the motor mover is connected to the end of the piston.

8. The ionic liquid compressor according to claim 7, wherein The drive motor further includes a motor rear cover connected to the motor stator; the motor rear cover has a second cavity, and the motor mover can move in the second cavity.

9. The ionic liquid compressor according to claim 8, characterized in that The motor mover is connected to the motor rear cover via a resonant spring.

10. The ionic liquid compressor according to claim 9, characterized in that The foam metal is one or more of foam copper, foam aluminum, and foam nickel.

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