Intelligent pressurization compressor for hydrogenation

Abstract

The application provides a hydrogenation intelligent pressurizing compressor and relates to the field of compressors.The hydrogenation intelligent pressurizing compressor comprises a linear motor, the inside of the linear motor is provided with a cooling flow channel, the output end of the linear motor is fixedly connected with a push rod, one end of the push rod is fixedly connected with a piston head, a diaphragm compressor unit, the power end of the diaphragm compressor unit is connected with the piston head, the input end of the diaphragm compressor unit is connected with a hydrogen production device, a blow flow pipeline, the two ends of the blow flow pipeline are respectively connected with the output end of the diaphragm compressor unit and the inlet of the cooling flow channel, a turbine pressurizing assembly, the input end of the turbine pressurizing assembly is connected with one end of the cooling flow channel, and a hydrogen storage device, the input end of the hydrogen storage device is connected with the output end of the turbine pressurizing assembly.The hydrogenation intelligent pressurizing compressor can complete the cooling of the linear motor and the secondary heat exchange of hydrogen simultaneously without additional consumption of the cooling pump power, the compression efficiency of the subsequent turbine pressurizing is improved, and the operation power consumption cost of the hydrogenation station is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of compressors, and more particularly to a smart pressurization compressor for hydrogen refueling. Background Technology

[0002] The domestic hydrogen energy industry is currently in a critical stage of large-scale promotion. The core pressurization equipment of hydrogen refueling stations, as the key hub connecting the front-end hydrogen production unit and the back-end hydrogen storage system, directly determines the overall operating energy efficiency and hydrogen supply stability of the station.

[0003] Currently, the mainstream hydrogenation and pressurization equipment used in the industry mainly falls into two technical categories:

[0004] The first type is the traditional crankshaft connecting rod type oil-filled piston compressor. This type of equipment relies on an electric motor to drive the crankshaft to rotate, and the connecting rod mechanism drives the piston to reciprocate to complete the hydrogen pressurization. It has a low technical threshold and low initial procurement cost, and was the mainstream choice for early hydrogen refueling stations.

[0005] The second type is the ordinary diaphragm hydrogen refueling compressor. This type of equipment completely separates the oil chamber and the hydrogen chamber through a diaphragm, achieving oil-free compression and producing hydrogen with high purity. It is the mainstream configuration in current hydrogen refueling scenarios.

[0006] In addition, in recent years, some manufacturers have tried to introduce linear motors into the field of hydrogen compression in an attempt to simplify the complex transmission chain of the traditional crankshaft structure. However, due to the inherent defects of linear motors, such as the difficulty of heat dissipation and the low energy efficiency of high-pressure hydrogen pressurization, large-scale commercialization has not yet been achieved.

[0007] Existing hydrogen refueling compressors generally use independent water-cooled or air-cooled heat dissipation systems for their power drive components, requiring additional auxiliary equipment such as cooling water pumps, cooling fans, and heat exchange units. These auxiliary devices consume a significant amount of energy. At the same time, hydrogen generates a large amount of waste heat during the primary pressurization process, which is usually directly discharged into the environment through the cooler without any recovery or utilization, resulting in a large amount of energy waste and directly increasing the unit electricity cost of hydrogen production at hydrogen refueling stations. In particular, the linear motor driven compressors that have been tested in the industry in recent years generate a large amount of concentrated heat in the mover coil and stator of the linear motor when operating under high load. If heat dissipation is not timely, faults such as magnet demagnetization and coil insulation breakdown can easily occur. In order to ensure operational stability, manufacturers have to configure cooling systems with higher power, which further aggravates the energy efficiency loss of the entire machine.

[0008] Therefore, it is necessary to provide a new intelligent pressurization compressor for hydrogenation to solve the above-mentioned technical problems. Summary of the Invention

[0009] To solve the above-mentioned technical problems, the present invention provides an intelligent pressurization compressor for hydrogenation.

[0010] The intelligent pressurizing compressor for hydrogen refueling provided by the present invention includes a linear motor, a diaphragm compressor unit, a turbo pressurizing assembly, and a hydrogen storage device;

[0011] The input end of the diaphragm compressor unit is connected to the hydrogen production device, the output end of the turbocharger assembly is connected to the hydrogen storage device, and the output end of the linear motor drives the diaphragm compressor unit.

[0012] The linear motor has a cooling channel inside. The hydrogen output end of the diaphragm compressor unit is connected to the inlet of the cooling channel through a blow pipe. The outlet of the cooling channel is connected to the input end of the turbocharger assembly. The high-temperature and high-pressure hydrogen gas after being pressurized by the diaphragm compressor unit is introduced into the cooling channel through the blow pipe to exchange heat with the linear motor. The hydrogen gas after heat exchange is then sent to the turbocharger assembly for secondary pressurization and then sent to the hydrogen storage device.

[0013] Furthermore, the linear motor includes a base plate, a stator disk assembly, a mover coil block, a carrier plate, a guide rail, and a slider; the cooling channel is opened inside the base plate, the stator disk assembly is fixed to the base plate, the mover coil block is disposed on the carrier plate and cooperates with the stator disk assembly, the carrier plate is slidably assembled to the guide rail by the slider, a push rod is fixedly connected to the outside of the carrier plate, and the end of the push rod is provided with a piston head for driving the diaphragm compressor assembly.

[0014] Furthermore, a magnetic grating strip is fixedly provided on the side of the base plate, and a magnetic grating sensor that cooperates with the magnetic grating strip is mounted on the carrier plate for closed-loop positioning control of the reciprocating stroke of the carrier plate.

[0015] Furthermore, the stator disk assembly consists of a first magnet and a second magnet arranged in an alternating pattern with opposite magnetic poles; the mover coil block contains multiple sets of electromagnets with coils.

[0016] Furthermore, the diaphragm compressor unit includes a compression housing, a diaphragm, an inlet check valve, and an exhaust check valve; the compression housing is provided with a first chamber, a second chamber, an inlet chamber, an exhaust chamber, and a third chamber, with a piston head extending into the first chamber, and the diaphragm separating the second and third chambers; the inlet chamber is connected to a hydrogen production device, the exhaust chamber is connected to a blow pipe, and check valves are respectively installed in the inlet and exhaust chambers.

[0017] Furthermore, the intake one-way valve and the exhaust one-way valve have the same structure but are installed in opposite directions; the one-way valve includes a fixed plate, a fixed column, a movable sealing plate and a compression spring, the movable sealing plate is slidably sleeved on the fixed column, and the compression spring abuts against the movable sealing plate and the fixed plate.

[0018] Furthermore, an air storage chamber is provided on the outside of the compression housing. The air storage chamber is connected to the second chamber through the airflow pipes of two sets of reverse one-way valves for hydraulic oil buffering and pressure replenishment.

[0019] Furthermore, the turbocharger assembly includes a pressurization housing, a drive shaft, a drive motor, at least one intake turbine and an exhaust turbine; the drive motor drives the drive shaft to rotate, the intake turbine is located at the intake port and the exhaust turbine is located at the exhaust port; the intake port is connected to the cooling channel outlet, and the exhaust port is connected to the hydrogen storage device through a hydrogen discharge pipe.

[0020] Furthermore, the drive shaft is equipped with multiple sets of electromagnetic clutches, each set of electromagnetic clutches is respectively engaged with the corresponding intake turbine spline, and can individually control the engagement or disengagement of a single-stage intake turbine to achieve staged boosting.

[0021] Furthermore, the diaphragm compressor unit, the blowing pipe, the cooling channel, and the push rod are all provided in two sets and arranged symmetrically. The two sets of push rods are respectively assembled on both sides of the carrier plate to form a opposed double-cylinder pressurization structure.

[0022] Compared with related technologies, the intelligent pressurization compressor for hydrogenation provided by this invention has the following advantages:

[0023] 1. This invention directly uses pressurized high-pressure hydrogen as a cooling medium, and uses flowing hydrogen to blow onto the linear motor to cool it down and prevent it from overheating. This overcomes the disadvantage of relatively difficult heat dissipation of linear motors. Without consuming additional cooling pump power, it simultaneously completes the cooling of the linear motor and secondary heat exchange with hydrogen, thereby improving the compression efficiency of the subsequent turbine pressurization and significantly reducing the operating electricity cost of hydrogen refueling stations.

[0024] 2. This invention adopts a linear motor direct-drive diaphragm compressor unit. The linear motor direct drive eliminates crankshaft and connecting rod transmission clearance. Combined with the symmetrical double piston opposed structure, the axial force is completely canceled out. The vibration intensity of the whole machine is reduced compared with traditional compressors. At the same time, the magnetic grid closed-loop positioning can accurately control the piston reciprocating stroke, avoid the diaphragm from overtravel and tearing, and extend the service life of the diaphragm.

[0025] 3. The present invention features a multi-stage, separable turbine structure that can automatically adjust the number of turbine stages based on the output pressure of the front-end hydrogen generator and the real-time pressure of the rear-end hydrogen storage tank. This allows it to adapt to the low inlet pressure conditions of low-pressure hydrogen generators and also to directly pressurize high-pressure hydrogen storage tanks without the need for multiple compressors of different pressure levels. The turbine pressurization device can be intelligently adjusted according to the efficiency of electrolytic hydrogen production and the pressure of the hydrogen storage device, thereby reducing turbine pressurization energy consumption. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the intelligent pressurization compressor for hydrogenation provided by the present invention;

[0027] Figure 2 This is a schematic diagram of the linear motor provided by the present invention;

[0028] Figure 3 A schematic diagram of the cooling channel provided by the present invention;

[0029] Figure 4 This is a cross-sectional view of the diaphragm compressor unit provided by the present invention;

[0030] Figure 5 for Figure 4 The enlarged structural diagram at point A is shown below;

[0031] Figure 6 This is a cross-sectional structural schematic diagram of the turbocharger assembly provided by the present invention.

[0032] The diagram labels are as follows: 1. Linear motor; 101. Cooling channel; 102. Inlet; 103. Outlet; 104. Push rod; 105. Piston head; 106. Base plate; 107. Stator disk assembly; 108. Magnetic grid strip; 109. Mover coil block; 110. Carrier plate; 111. Magnetic grid sensor; 112. Guide rail; 113. Slider;

[0033] 2. Diaphragm compressor unit; 201. Compression housing; 202. Diaphragm; 203. Exhaust check valve; 204. Chamber 1; 205. Chamber 2; 206. Inlet chamber; 207. Exhaust chamber; 208. Chamber 3; 209. Barrier chamber; 210. Hydrogenation pipe; 211. Pressure gauge; 212. Fixing plate; 213. Fixing column; 214. Movable sealing plate; 215. Compression spring; 216. Gas storage tank; 217. Gas flow pipe;

[0034] 3. Blowing pipe;

[0035] 4. Turbocharging assembly; 401. Pressurization housing; 402. Inlet port; 403. Exhaust port; 404. Exhaust turbine; 405. Drive shaft; 406. Drive motor; 407. Inlet turbine; 408. Electromagnetic clutch; 409. Hydrogen exhaust pipe;

[0036] 5. Hydrogen storage device. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 ,in, Figure 1 This is a schematic diagram of the overall structure of the intelligent pressurization compressor for hydrogenation provided by the present invention; Figure 2 This is a schematic diagram of the linear motor provided by the present invention; Figure 3A schematic diagram of the cooling channel provided by the present invention; Figure 4 This is a cross-sectional view of the diaphragm compressor unit provided by the present invention; Figure 5 for Figure 4 The enlarged structural diagram at point A is shown below; Figure 6 A cross-sectional view of the turbocharger assembly provided by the present invention.

[0039] In the specific implementation process, such as Figures 1-6 As shown, the intelligent pressurization compressor for hydrogenation includes:

[0040] Linear motor 1 has a cooling channel 101 inside. The input end and output end of the cooling channel 101 are respectively provided with an inlet 102 and an outlet 103. A push rod 104 is fixedly connected to the output end of the linear motor 1, and a piston head 105 is fixedly connected to one end of the push rod 104.

[0041] Diaphragm compressor unit 2, the power end of diaphragm compressor unit 2 is connected to piston head 105, and the input end of diaphragm compressor unit 2 is connected to hydrogen production unit;

[0042] The blowing pipe 3 has two ends connected to the output end of the diaphragm compressor unit 2 and the inlet 102 of the cooling channel 101, respectively.

[0043] The turbocharger assembly 4 has its input end connected to the outlet 103 of the cooling channel 101.

[0044] Hydrogen storage device 5, the input end of which is connected to the output end of turbocharger assembly 4.

[0045] It should be noted that the hydrogen production device is a hydrogen generator, and the hydrogen storage device 5 is a hydrogen storage tank, and the hydrogen storage tank is also equipped with a pressure gauge 211.

[0046] In some embodiments, reference is made to Figure 2 as well as Figure 3As shown, the linear motor 1 includes a base plate 106, a stator disk assembly 107, a magnetic grid strip 108, a mover coil block 109, a carrier plate 110, a magnetic grid sensor 111, two opposing guide rails 112, and multiple sliders 113. The base plate 106 has a curved cooling channel 101 inside. The stator disk assembly 107 is fixedly installed at the center of one side of the base plate 106. The magnetic grid strip 108 is fixedly installed at the edge of one side of the base plate 106. The mover coil block 109 is fixedly installed at the center of the back of the carrier plate 110, and the position of the mover coil block 109 corresponds to that of the stator disk assembly 107. The four corners of the carrier plate 110 are fixedly connected to multiple sliders 113, and the multiple sliders 113 are slidably installed on the two guide rails 112, and the two guide rails 112 are fixedly installed at both ends of one side of the base plate 106. The magnetic grid sensor 111 is fixedly installed on one side of the carrier plate 110.

[0047] Specifically, the stator disk assembly 107 includes multiple staggered magnets 1 and 2, with the magnetic poles of magnets 1 and 2 being opposite.

[0048] Specifically, the moving coil block 109 has multiple electromagnets inside, and the surfaces of the multiple electromagnets are provided with coils.

[0049] After the device is powered on, the system first completes the initial position zeroing calibration of the carrier plate 110 through the magnetic grating sensor 111. Magnets one and two on the stator disk assembly 107 are arranged closely with alternating N / S poles to form a strong gradient magnetic field evenly distributed in the axial direction. Multiple sets of electromagnets inside the mover coil block 109 are arranged according to the three-phase winding pattern. The controller inputs an alternating sinusoidal drive current to the coil and dynamically adjusts the energizing timing and current magnitude of each phase coil according to the micron-level position signal fed back in real time by the magnetic grating sensor 111.

[0050] When the carrier plate 110 needs to move to the left, the magnetic field generated by the coil repels the magnetic pole of the left stator magnet and attracts the magnetic pole of the right stator magnet, generating a precise and controllable leftward axial thrust.

[0051] When the carrier plate 110 needs to move to the right, the controller automatically switches the phase sequence of the coil current to generate an axial thrust to the right in the opposite direction.

[0052] The sliders 113 at the four corners of the carrier plate 110 make backlash-free linear motion on two parallel guide rails 112, without any mechanical conversion loss from rotation to linear motion in the traditional crankshaft connecting rod structure.

[0053] The cooling channel 101 inside the base plate 106 adopts an "S-shaped continuous loop" topology. There are no sharp right-angle bends at the turning point of the S-shaped cooling channel. Combined with the suction of the turbine pressurization component 4, the problem of sudden increase in local flow resistance is fundamentally avoided. Since the reciprocating motion of the linear motor 1 is directly tied to the amount of high-pressure hydrogen discharged by the diaphragm compressor unit 2, the high-pressure hydrogen will also be continuously supplied for heat exchange under the continuous operation of the linear motor 1.

[0054] High-pressure hydrogen is discharged from the diaphragm compressor unit 2. Due to the isothermal compression process, the operating temperature of the hydrogen diaphragm compressor is generally below 65°C and will carry some compression waste heat. This part of the high-pressure hydrogen with temperature is not directly sent to the hydrogen storage tank, but is first sent to the inlet 102 of the cooling channel 101 of the linear motor 1 through the blowing pipe 3.

[0055] After high-temperature and high-pressure hydrogen enters the curved cooling channel 101, it flows slowly along the preset S-shaped path. The hydrogen comes into full contact with the inner wall of the channel, transferring the residual heat of compression it carries to the stator and mover components of the linear motor 1, which are at a higher temperature, for heat exchange. The normal temperature range of the linear motor is generally 65°C to 85°C. The heat generated by the operation of the linear motor 1 is continuously carried away, and the temperature of the core components of the motor is stably controlled below 65°C, completely avoiding coil insulation aging and magnet demagnetization failures caused by high temperature.

[0056] Traditional hydrogen refueling compressors typically use an external water chiller to cool the motor. The water pump and heat exchanger of the water chiller require a large amount of additional electrical energy. This solution directly uses the high-pressure hydrogen to be pressurized as the heat exchange medium, completely eliminating the energy consumption of an independent cooling system. At the same time, the hydrogen is heat-exchanged before entering the subsequent turbine pressurization stage, which can significantly reduce the power consumption of the turbine compression process.

[0057] In some embodiments, reference is made to Figure 4As shown, the diaphragm compressor unit 2 includes a compression housing 201, a diaphragm 202, an intake check valve, and an exhaust check valve 203. The compression housing 201 has two interconnected chambers, a first chamber 204 and a second chamber 205. One end of a piston head 105 penetrates the first chamber 204, and the size of the piston head 105 matches the inner wall size of the first chamber 204. The compression housing 201 also has an intake chamber 206 and an exhaust chamber 207. The ends of the intake chamber 206 and the exhaust chamber 207 are connected by a third chamber 208. The edge of the diaphragm 202 is connected to... The inner wall of the compression housing 201 is fixedly connected, and the diaphragm 202 separates the second chamber 205 and the third chamber 208 into independent cavities. The middle of the air inlet chamber 206 and the exhaust chamber 207 are both provided with a barrier chamber 209. The air inlet check valve and the exhaust check valve 203 are respectively located in the two barrier chambers 209. The input end of the air inlet chamber 206 is connected to the hydrogen filling pipe 210. The surface of the hydrogen filling pipe 210 is also provided with a pressure gauge 211 and a valve. The hydrogen filling pipe 210 is connected to the output end of the hydrogen production device. The output end of the exhaust chamber 207 is connected to one end of the blowing pipe 3.

[0058] The complete working cycle of diaphragm compressor unit 2 consists of four precise timing steps:

[0059] 1. Negative Pressure Intake Stage: When the left push rod 104 drives the left piston head 105 to retract outward, the hydraulic oil volume inside chamber 1 204 is expanded, and a slight negative pressure is simultaneously formed inside chamber 1 204. The pressure change of the hydraulic oil is transmitted to the diaphragm 202, causing the diaphragm 202 to be concave towards chamber 2 205. At this time, a negative pressure is simultaneously formed inside chamber 3 208. Under the action of the negative pressure in the chamber, the movable sealing plate 214 of the intake check valve overcomes the elastic force of the compression spring 215 and slides backward along the fixed column 213. The originally blocked intake chamber 206 channel is completely opened, and the hydrogen produced by the hydrogen production device flows smoothly into the interior of chamber 3 208 through the hydrogen filling pipe 210 until the diaphragm 202 moves to the maximum concave position, and chamber 3 208 is completely filled with low-pressure hydrogen.

[0060] II. Isochoric Sealing Stage: When the piston head 105 retracts to its maximum stroke position and begins to reverse direction, the air pressure inside chamber 1 204 begins to rise, the diaphragm 202 stops denting and begins to slowly bulge towards chamber 3 208, the hydrogen inside chamber 3 208 is slightly compressed, and the pressure rises slightly. At this time, the pressure difference on both sides of the intake check valve disappears, and the movable sealing plate 214 instantly resets under the elastic force of the compression spring 215, completely blocking the passage of the intake chamber 206. At the same time, the exhaust check valve 203 has not yet formed a sufficient opening pressure difference, and the hydrogen inside chamber 3 208 is in a completely sealed isochoric state without any leakage.

[0061] III. Pressurization and Exhaust Stage: As the piston head 105 continues to advance inward, the air pressure continues to rise. The diaphragm 202 is evenly pushed and bulges towards the third chamber 208. The sealed hydrogen inside the third chamber 208 is isothermally compressed, and the pressure rapidly rises to the primary pressurization threshold. When the pressure exceeds the opening threshold of the exhaust check valve 203, the high-pressure hydrogen pushes open the exhaust check valve 203 and flows out at high speed from the exhaust chamber 207. It is then transported outward through the blow pipe 3. Throughout the pressurization process, the hydrogen is completely enveloped by the diaphragm 202 and does not come into contact with any metal friction parts. Absolutely no oil or metal debris is mixed into the hydrogen.

[0062] IV. Pressure Relief and Reset Stage: When the piston head 105 is pushed to the maximum stroke position and the primary pressurized hydrogen is completely discharged, the pressure inside chamber 208 drops rapidly. Under the action of the pressure spring 215, the exhaust check valve 203 resets and blocks the exhaust chamber 207. At this time, the piston head 105 begins to retract in the opposite direction, returning to the initial position and entering the next cycle.

[0063] Since the piston movements of the two diaphragm compressor units 2 are completely opposite in phase, when the left unit is in the exhaust pressure boosting stage, the right unit is in the negative pressure intake stage. The high-pressure hydrogen discharged by the two units merges in the blow pipe 3, and a continuous and stable high-pressure hydrogen flow can be obtained without the need for an additional large pressure stabilizing tank.

[0064] In some embodiments, reference is made to Figure 6 As shown, the turbocharger assembly 4 includes a pressurization housing 401, an intake port 402, an exhaust port 403, an exhaust turbine 404, a drive shaft 405, a drive motor 406, and multiple intake turbines 407. The intake port 402 and the exhaust port 403 are respectively fixedly installed on both sides of the pressurization housing 401. The drive motor 406 is fixedly installed on one side of the exhaust port 403. The output end of the drive motor 406 is fixedly connected to one end of the drive shaft 405. The exhaust turbine 404 is fixedly installed on the surface of the drive shaft 405. 404 is located inside the exhaust port 403. Multiple intake turbines 407 are rotatably mounted on the surface of the drive shaft 405. Multiple electromagnetic clutches 408 are fixedly mounted on the surface of the drive shaft 405. Multiple intake turbines 407 are located inside the intake port 402. Multiple electromagnetic clutches 408 are respectively engaged with the back splines of multiple intake turbines 407. One end of the intake port 402 is connected to the exhaust port 103. A hydrogen discharge pipe 409 is also provided on one side of the exhaust port 403. One end of the hydrogen discharge pipe 409 is connected to the input end of the hydrogen storage device 5.

[0065] After heat exchange in the cooling channel 101, the high-pressure hydrogen gas is sent from the outlet 103 into the inlet 402 of the turbocharger assembly 4. The system automatically controls the engagement and disengagement of multiple electromagnetic clutches 408 based on real-time pressure data collected from the hydrogen filling pipe pressure gauge and the hydrogen storage tank pressure gauge, thereby achieving adaptive staged pressurization.

[0066] When the hydrogen produced by the hydrogen production unit has a low pressure and the current pressure of the hydrogen storage tank is much lower than the target storage pressure, the system controls all electromagnetic clutches 408 to engage, and all the multiple intake turbines 407 on the drive shaft 405 rotate synchronously with the drive shaft 405. The high-pressure hydrogen passes through all the series-connected intake turbines 407 in sequence, and the pressure is increased with each turbine stage.

[0067] When the pressure in the hydrogen storage tank is close to the target value and only a small amount of pressure needs to be added, the system automatically disconnects the excess electromagnetic clutch 408, leaving only one set of intake turbine 407 engaged with the drive shaft 405. This avoids pressure overshoot caused by multi-stage pressurization, accurately replenishes the hydrogen pressure to the preset target value, and significantly reduces the useless power consumption of the drive motor 406.

[0068] Finally, after pressure stabilization and flow equalization by the exhaust turbine 404, the high-purity hydrogen with stable pressure is sent into the hydrogen storage device 5 through the hydrogen exhaust pipe 409. The pressure gauge 211 on the hydrogen storage tank transmits the pressure data back to the control system in real time. When the pressure in the tank reaches the set safety threshold, the whole machine automatically stops running, completing the entire hydrogen refueling and pressurization process.

[0069] The entire turbocharging process is driven by non-contact blades, which does not generate any frictional impurities and fully guarantees the high purity of hydrogen. At the same time, the staged clutch control mode can adapt to all operating conditions from low-pressure hydrogen generator production to high-pressure hydrogen storage and repressurization. There is no need to configure multiple compressors of different pressure levels. A single unit can cover the entire process of pressurization needs of a hydrogen refueling station.

[0070] Example 2

[0071] In a specific implementation process, refer to Figure 5 As shown, the intake one-way valve and the exhaust one-way valve 203 have the same structure but are positioned oppositely. The intake one-way valve includes a fixed plate 212, a fixed column 213, a movable sealing plate 214, and a compression spring 215. The fixed plate 212 is fixedly installed on the inner wall of the barrier cavity 209, the fixed column 213 is fixedly installed in the middle of the fixed plate 212, the movable sealing plate 214 is slidably installed on the surface of the fixed column 213, and the compression spring 215 is sleeved on the surface of the fixed column 213. The two ends of the compression spring 215 are fixedly connected to the movable sealing plate 214 and one side of the fixed plate 212, respectively. The cross-sectional diameter of the movable sealing plate 214 is larger than the cross-sectional diameter of the intake cavity 206.

[0072] Example 3

[0073] In one specific implementation, the number of diaphragm compressor unit 2, blowing pipe 3, cooling channel 101 and push rod 104 are all two and symmetrically arranged, and the two push rods 104 are fixedly installed on both sides of the carrier plate 110, and one end of the two push rods 104 are respectively inserted into the chamber 204 of the two diaphragm compressor units 2.

[0074] This solution uses two completely symmetrical diaphragm compressor units 2, with the movement phases of the two piston heads 105 being completely opposite, to achieve a continuous pressurization cycle of "push and pull", thus completely eliminating the pressure pulsation problem of single-cylinder compression.

[0075] Example 4

[0076] In one specific implementation, an air storage chamber 216 is also provided on the outside of the compression housing 201. The inner cavity of the air storage chamber 216 is connected to two opposing airflow pipes 217. The other end of the airflow pipes 217 is connected to the inner cavity of the second cavity. The surface of each airflow pipe 217 is provided with a one-way valve, and the two one-way valves are arranged in opposite directions.

[0077] When the diaphragm 202 moves to its maximum concave limit position, the high-pressure hydraulic oil pre-stored in the air storage chamber 216 is quickly replenished into the second chamber 205 through the forward-opening one-way valve. This instantly fills the tiny volume gap that appears in the second chamber 205 after the diaphragm 202 is concave, completely eliminating the problems of pressure interruption and excessive output airflow pulse that occur when the diaphragm 202 of a traditional diaphragm compressor moves to its dead point position. When the diaphragm 202 bulges outwards towards the third chamber 208, the excess hydraulic oil squeezed out of the second chamber 205 can be released through... Another one-way valve with reverse configuration returns the hydraulic oil to the gas storage chamber 216 for storage, reserving hydraulic energy for the next pressurization cycle. The entire process does not require an external oil pump, achieving closed-loop automatic circulation of hydraulic oil and avoiding problems such as local accumulation of hydraulic oil and high pressure in the chamber. When the hydrogen in chamber 3 208 experiences instantaneous pressure overload, the diaphragm 202 will slightly retract towards chamber 2 205, and the excess hydraulic oil can be quickly squeezed into the gas storage chamber 216 to release pressure, preventing the diaphragm 202 from being directly subjected to instantaneous overpressure and tearing.

[0078] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0079] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0080] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A smart compressor for hydrogenation pressurization, characterized in that, It includes a linear motor (1), a diaphragm compressor unit (2), a turbocharger assembly (4), and a hydrogen storage device (5); The diaphragm compressor unit (2) is connected to a hydrogen production device at its input end, the turbocharger assembly (4) is connected to a hydrogen storage device at its output end, and the linear motor (1) drives the diaphragm compressor unit at its output end. The linear motor (1) has a cooling channel (101) inside. The hydrogen output end of the diaphragm compressor unit is connected to the inlet (102) of the cooling channel (101) through the blowing pipe (3). The outlet (103) of the cooling channel (101) is connected to the input end of the turbocharger assembly. The high-temperature and high-pressure hydrogen gas after being pressurized by the diaphragm compressor unit is introduced into the cooling channel through the blowing pipe to exchange heat with the linear motor. After heat exchange, the hydrogen gas is sent to the turbocharger assembly for secondary pressurization and then sent to the hydrogen storage device.

2. The intelligent pressurization compressor for hydrogenation according to claim 1, characterized in that, The linear motor (1) includes a base plate (106), a stator disk assembly (107), a mover coil block (109), a carrier plate (110), a guide rail (112), and a slider (113). The cooling channel (101) is opened inside the base plate (106). The stator disk assembly (107) is fixed to the base plate (106). The mover coil block (109) is disposed on the carrier plate (110) and cooperates with the stator disk assembly (107). The carrier plate (110) is slidably mounted on the guide rail (112) through the slider (113). A push rod (104) is fixedly connected to the outside of the carrier plate (110). The end of the push rod (104) is provided with a piston head (105) for driving the diaphragm compressor assembly.

3. The intelligent pressurization compressor for hydrogenation according to claim 2, characterized in that, A magnetic grating strip (108) is fixedly provided on the side of the base plate (106), and a magnetic grating sensor (111) that cooperates with the magnetic grating strip (108) is mounted on the carrier plate (110) for closed-loop positioning control of the reciprocating stroke of the carrier plate.

4. The intelligent pressurization compressor for hydrogenation according to claim 2, characterized in that, The stator disk assembly (107) consists of a first magnet and a second magnet arranged in an alternating pattern with opposite magnetic poles; the mover coil block (109) contains multiple sets of electromagnets with coils.

5. The intelligent pressurization compressor for hydrogenation according to claim 1, characterized in that, The diaphragm compressor unit (2) includes a compression housing (201), a diaphragm (202), an inlet check valve, and an exhaust check valve (203). The compression housing (201) is provided with a first chamber (204), a second chamber (205), an inlet chamber (206), an exhaust chamber (207), and a third chamber (208). A piston head (105) extends into the first chamber (204), and the diaphragm (202) separates the second chamber (205) and the third chamber (208). The inlet chamber (206) is connected to a hydrogen production device, and the exhaust chamber (207) is connected to a blow pipe (3). Check valves are installed in the inlet chamber and the exhaust chamber, respectively.

6. The intelligent pressurization compressor for hydrogenation according to claim 5, characterized in that, The intake one-way valve and the exhaust one-way valve (203) have the same structure but are installed in opposite directions. The one-way valve includes a fixed plate (212), a fixed column (213), a movable sealing plate (214), and a compression spring (215). The movable sealing plate (214) is slidably sleeved on the fixed column (213), and the compression spring (215) abuts against the movable sealing plate and the fixed plate.

7. The intelligent pressurization compressor for hydrogenation according to claim 5, characterized in that, The compressor housing (201) is provided with an air storage chamber (216) on the outside. The air storage chamber (216) is connected to the second chamber (205) through the air flow pipe (217) of two sets of reverse one-way valves for hydraulic oil buffer pressure replenishment.

8. The intelligent pressurization compressor for hydrogenation according to claim 1, characterized in that, The turbocharger assembly (4) includes a pressurization housing (401), a drive shaft (405), a drive motor (406), at least one intake turbine (407) and an exhaust turbine (404); the drive motor (406) drives the drive shaft (405) to rotate, the intake turbine (407) is located at the intake port (402), and the exhaust turbine (404) is located at the exhaust port (403); the intake port (402) is connected to the cooling channel outlet (103), and the exhaust port (403) is connected to the hydrogen storage device (5) through the hydrogen discharge pipe (409).

9. The intelligent pressurization compressor for hydrogenation according to claim 8, characterized in that, The drive shaft (405) is equipped with multiple sets of electromagnetic clutches (408), each set of electromagnetic clutches (408) is splined with the corresponding intake turbine (407), and can individually control the engagement or disengagement of a single-stage intake turbine to achieve staged boosting.

10. The intelligent pressurization compressor for hydrogenation according to claim 3, characterized in that, The diaphragm compressor unit (2), the blowing pipe (3), the cooling channel (101), and the push rod (104) are all provided in two sets and arranged symmetrically. The two sets of push rods (104) are respectively assembled on both sides of the carrier plate (110) to form a counter-dual-cylinder pressurization structure.

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