Ionic liquid compressor

Abstract

The invention discloses an ionic liquid compressor, comprising: an end cap having an air inlet and an air outlet; the base is connected with the end cover and is provided with an air inlet cavity, an air outlet cavity and an airflow hole, the air inlet cavity is communicated with the air inlet, the air outlet cavity is communicated with the air outlet, the airflow hole is respectively communicated with the air inlet cavity and the air outlet cavity, an air inlet valve is arranged in the air inlet cavity, and an air outlet valve is arranged in the air outlet cavity; the air cylinder is connected with the base and is provided with a first cavity, and the first cavity is communicated with the airflow hole; the piston is arranged in the first cavity, and the circumferential direction of the piston is in sealing fit with the inner wall of the air cylinder; foam metal is arranged at one end, close to the airflow hole, of the piston, and the foam metal is immersed in the ionic liquid; the driving motor is arranged at the end, away from the airflow hole, of the piston and drives the piston to reciprocate. The overall performance and the operation stability of the ionic liquid compressor are improved.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, and in particular to an ionic liquid compressor. Background Art

[0002] As a new type of compressor technology, ionic liquid compressors have received extensive attention in the fields of chemical industry, refrigeration, air conditioning and energy conversion in recent years. This type of compressor uses the special 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 their design and operation.

[0003] First, 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 and adapt to different working conditions.

[0004] Secondly, during the compression process, the blowing effect of gas on ionic liquid may cause the liquid level to fluctuate, which in turn affects the sealing of the compressor. This will not only reduce the performance of the compressor, but may also cause safety hazards. Therefore, how to reduce the blowing of gas on liquid and reduce liquid level fluctuations has become the key to improving the performance of ionic liquid compressors.

[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 find it difficult to achieve efficient heat exchange, resulting in uneven temperature inside the compressor, affecting the overall performance of the compressor.

[0006] In response to the above problems, the cooling system and control system of the existing ionic liquid compressors realize the cooling and displacement detection and control of the compression chamber by introducing additional sensors or other devices, which increases the complexity of the system; or the entrained ionic liquid is recovered by capturing the liquid through porous media, which does not fundamentally solve the entrainment problem of ionic liquid.

[0007] Therefore, technicians in this field are committed to providing an ionic liquid compressor to improve the overall performance and operating stability of the ionic liquid compressor by optimizing the compressor's displacement adjustment mechanism, reducing the gas-to-liquid blowing effect, and enhancing the heat exchange efficiency between the piston and the ionic liquid. Summary of the invention

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

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

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

[0011] A base, which is connected to the end cover, and has an air inlet cavity, an exhaust cavity, and an air flow hole, wherein the air inlet cavity is connected to the air inlet port, the exhaust cavity is connected to the exhaust port, the air flow hole is connected to 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;

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

[0013] A piston is disposed in the first cavity and can reciprocate along the first cavity, and is sealed and matched with the inner wall of the cylinder in the circumferential direction; a foam metal is disposed at one end of the piston close to the air flow hole, and the foam metal is immersed in the ionic liquid;

[0014] A driving motor is arranged at one end of the piston away from the air flow hole, and drives the piston to reciprocate.

[0015] Preferably, the intake valve and the exhaust valve are disc-shaped valves, and the disc-shaped valves are sealed by spring pre-compression.

[0016] Preferably, the intake valve and the exhaust 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 mating surface and a second mating surface, the first mating surface is a sealing mating surface, and the second mating surface is provided with a gas communication groove.

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

[0020] Preferably, the driving motor comprises a motor mover and a motor stator, the motor stator is connected to the cylinder via a motor end plate, and the motor mover is connected to an end of the piston.

[0021] Preferably, the drive motor further comprises a motor rear cover, wherein the motor rear cover is connected to the motor stator; the motor rear cover has a second cavity, and the motor mover can move in the second cavity.

[0022] Preferably, the motor mover is connected to the motor rear cover via a resonant spring.

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

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

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

[0026] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the structure of the ionic liquid compressor according to an embodiment of the present invention.

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

[0029] The following describes the preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

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

[0031] The present invention provides an ionic liquid compressor, which reduces the blowing effect of gas on liquid by inlaying foam metal on the top of the piston and using a linear motor with a variable stroke, enhances 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 operating stability of the ionic liquid compressor.

[0032] like Figure 1The figure shows the structure diagram of the ionic liquid compressor of the present embodiment. The ionic liquid compressor of the present 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 constitute an air intake and exhaust mechanism. The gas is compressed in the cylinder 4 by the piston 5, and the piston 5 is driven by the driving motor.

[0033] Specifically, an air inlet and an air outlet are provided on the end cover 1 , and uncompressed gas enters from the air inlet, and compressed gas is discharged from the air outlet. In this 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 to the end cover 1, specifically, it can be connected in a partially nested manner. The base 2 is provided with an air inlet cavity, an exhaust cavity, and an air flow hole. The air inlet cavity and the exhaust cavity are located on one side close to the end cover 1, and the air flow hole is located on the other side opposite to the end cover 1. The air inlet cavity, the exhaust cavity, and the air flow hole do not penetrate the base 2. The air inlet cavity is connected to the air inlet of the end cover 1, the exhaust cavity is connected to the exhaust port of the end cover 1, and the air flow hole is connected to the air inlet cavity and the exhaust cavity respectively; in this way, the uncompressed gas entering from the air inlet enters the air flow hole through the air inlet cavity, and the compressed gas flowing out of the air flow hole flows out through the exhaust cavity and the exhaust port. In order to facilitate the control of the air flow, an air inlet valve 11 is provided in the air inlet cavity, and an exhaust valve 10 is provided in the exhaust cavity. The inflow of uncompressed gas and the discharge of compressed gas are realized by the sequential operation of the air inlet valve 11 and the exhaust valve 10.

[0035] In this embodiment, the intake valve 11 and the exhaust valve 10 may be disc valves, which are sealed by spring pre-compression. In another embodiment, the intake valve 11 and the exhaust valve 10 may also be reed valves.

[0036] The cylinder 4 is arranged on one side of the air flow hole of the base 2, and the cylinder 4 is connected to the base 2, and can be connected in a partially nested manner. The cylinder 4 has a first cavity inside, and the first cavity is connected to the air flow hole of the base 2, so that the gas flowing in from the air flow hole can enter the first cavity of the cylinder 4, and the gas in the first cavity can be discharged from the air flow hole.

[0037] The piston 5 is arranged in the first cavity of the cylinder 4, and the piston 5 can move back and forth along the cylinder 4; a sealing fit is formed between the piston 5 and the inner wall of the cylinder 4, so that a compression chamber 12 is formed between the inner wall of the cylinder 4, the end of the piston 5, and the base 2. The reciprocating movement of the piston 5 changes the size of the compression chamber 12, thereby compressing the gas in the compression chamber 12.

[0038] A foam metal 3 is provided at the end of the piston 5 close to the base 2, and the foam metal 3 is immersed in the ionic liquid, so that the piston 5 becomes an ionic liquid piston. The ionic liquid level 13 is higher than the foam metal 3, and the foam metal 3 can block the ionic liquid, thereby reducing the blowing effect of the ionic liquid and the fluctuation of the liquid level when the airflow enters the cylinder 4, thereby improving the sealing effect of the ionic liquid and reducing the entrainment of the exhaust gas to the liquid.

[0039] In this embodiment, the foam metal 3 is a porous structure. The surface tension of the liquid in the foam metal 3 makes the liquid film have stronger adhesion ability and is not easily blown apart under air flow disturbance. The foam metal 3 can be made of porous foam materials such as foam copper, foam aluminum, and foam nickel. The foam metal 3 is connected to the piston 5 by welding.

[0040] The inner wall of the cylinder 4 and the piston 5 are stepped, and the piston 5 and the cylinder 4 have two mating surfaces. The first mating surface close to the compression chamber 12 is sealed to avoid gas leakage during compression; a gas connecting groove 42 is provided on the second mating surface away from the compression chamber 12 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 foam metal 3 on 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 during the compression process, and improve the compression efficiency. To this end, a heat dissipation fin 41 is provided on the outer side of the cylinder 4, and the heat dissipation of the cylinder 4 is enhanced by the heat dissipation fin 41, so that the heat generated during the compression process can be dissipated in time.

[0042] The driving motor is arranged at the end of the piston 5, and the driving motor drives the movement of the piston 5 to realize the compression of the gas. In this embodiment, the driving motor adopts 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 back cover 9. The motor mover 52 is arranged at the end of the piston 5, the motor stator 7 is fixed to the cylinder 4 through the motor end plate 6, and the motor back cover 9 is connected to the motor stator 7; a second cavity is provided in the motor back cover 9, and the motor mover 52 moves in the second cavity of the motor back cover 9.

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

[0045] According to the operating characteristics of the linear motor itself, the motion state of the motor mover 52 is calculated in real time through electrical signals, namely 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] In the ionic liquid compressor of this embodiment, the end cover 1, the base 2, the cylinder 4, the piston 5, and the motor mover 52 form a linear structure. The gas entering from the air inlet of the end cover 1 enters the compression chamber 12 through the air inlet cavity and the air flow holes of the base 2, and is compressed by the piston 5 to form compressed gas, which is then discharged through the air flow holes and the exhaust cavity of the base 2 and the exhaust port of the end cover 1, completing a compression process.

[0047] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined 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, which is connected to the end cover, and has an air inlet cavity, an exhaust cavity, and an air flow hole, wherein the air inlet cavity is connected to the air inlet port, the exhaust cavity is connected to the exhaust port, the air flow hole is connected to 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, wherein the first cavity is communicated with the air flow hole; A piston is disposed in the first cavity and can reciprocate along the first cavity, and is sealed and matched with the inner wall of the cylinder in the circumferential direction; a foam metal is disposed at one end of the piston close to the air flow hole, and the foam metal is immersed in the ionic liquid; A driving motor is arranged 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, characterized in that: 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, characterized in that: The air inlet valve and the exhaust valve are reed valves.

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

5. The ionic liquid compressor according to claim 1, characterized in that: The piston and the cylinder have a first mating surface and a second mating surface, the first mating surface is a sealing mating surface, and the second mating surface is provided with a gas communication groove.

6. The ionic liquid compressor according to claim 1, characterized in that: The driving motor is a linear motor.

7. The ionic liquid compressor according to claim 6, characterized in that: The driving motor comprises a motor mover and a motor stator. The motor stator is connected to the cylinder via 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, characterized in that: The drive motor further comprises a motor rear cover, wherein the motor rear cover is 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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