CN114382674A - Hydraulic drive hydrogen compressor - Google Patents
Hydraulic drive hydrogen compressor Download PDFInfo
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- CN114382674A CN114382674A CN202210065627.XA CN202210065627A CN114382674A CN 114382674 A CN114382674 A CN 114382674A CN 202210065627 A CN202210065627 A CN 202210065627A CN 114382674 A CN114382674 A CN 114382674A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 60
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 60
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 230000006835 compression Effects 0.000 claims abstract description 166
- 238000007906 compression Methods 0.000 claims abstract description 166
- 238000001816 cooling Methods 0.000 claims abstract description 95
- 239000007789 gas Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 96
- 239000003921 oil Substances 0.000 claims description 73
- 238000007789 sealing Methods 0.000 claims description 25
- 239000000498 cooling water Substances 0.000 claims description 18
- 239000010720 hydraulic oil Substances 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 14
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/008—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being a fluid transmission link
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B25/00—Multi-stage pumps
- F04B25/005—Multi-stage pumps with two cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
A hydraulic drive hydrogen compressor belongs to the technical field of compressors. Including pneumatic cylinder (1), hydrogen compression cylinder, hydraulic system and cooling system, hydraulic system links to each other with pneumatic cylinder (1), and cooling system links to each other its characterized in that with hydrogen compression cylinder: the hydrogen compression cylinder comprises a first-stage compression cylinder (4) and a second-stage compression cylinder (6), the hydraulic cylinder (1) is vertically arranged, the first-stage compression cylinder (4), the hydraulic cylinder (1) and the second-stage compression cylinder (6) are sequentially arranged from bottom to top, a piston rod (20) of the hydraulic cylinder (1) is connected with pistons of the first-stage compression cylinder (4) and the second-stage compression cylinder (6) simultaneously, and an air outlet of the first-stage compression cylinder (4) is communicated with an air inlet of the second-stage compression cylinder (6). The hydraulic drive hydrogen compressor has the advantages that the compression speed is high, the compressed gas can reach higher pressure, the stress at two ends of a piston rod of the hydraulic cylinder is balanced, and the secondary compression of the gas is realized.
Description
Technical Field
A hydraulic drive hydrogen compressor belongs to the technical field of compressors.
Background
Hydrogen is a colorless gas. One gram of hydrogen can be combusted to release 142 kilojoules of heat which is 3 times of the heat of gasoline. The combustion product is water, without ash and waste gas, and without environmental pollution. Hydrogen is particularly light in weight, much lighter than gasoline, natural gas, kerosene and so is inconvenient to carry and transport, but hydrogen as a fuel is still considered to be the most ideal energy source in the 21 st century. The hydrogen fuel as energy source has the outstanding characteristics of no pollution, high efficiency and cyclic utilization.
The hydrogen filling station needs to be compressed by a compressor so as to facilitate the storage and the transportation of hydrogen, the existing hydrogen compressor realizes the compression of the hydrogen by the reciprocating motion of a piston, but the existing hydrogen compressor realizes the compression only by the unidirectional motion of the piston, namely, the piston is in idle stroke when resetting, and the hydrogen is not compressed, so that the working efficiency of the hydrogen compression is reduced, and the hydrogen compression cost is improved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the hydraulic drive hydrogen compressor with high compression speed can compress gas in the reciprocating motion process of the piston.
The technical scheme adopted by the invention for solving the technical problems is as follows: this hydraulic drive hydrogen compressor, including pneumatic cylinder, hydrogen compression cylinder, hydraulic system and cooling system, hydraulic system links to each other with the pneumatic cylinder, and cooling system links to each other its characterized in that with hydrogen compression cylinder: the hydrogen compression cylinder comprises a first-stage compression cylinder and a second-stage compression cylinder, the hydraulic cylinder is vertically arranged, the first-stage compression cylinder, the hydraulic cylinder and the second-stage compression cylinder are sequentially arranged from bottom to top, a piston rod of the hydraulic cylinder is simultaneously connected with pistons of the first-stage compression cylinder and the second-stage compression cylinder, and an air outlet of the first-stage compression cylinder is communicated with an air inlet of the second-stage compression cylinder.
Preferably, water cooling cylinders are arranged between the first-stage compression cylinder and the hydraulic cylinder, the water outlets of the water cooling system are respectively communicated with the water inlets of the two water cooling cylinders, and the water inlets of the water cooling system are respectively communicated with the water outlets of the two water cooling cylinders. The pressure of cooling water in the water cooling cylinder is 0.15-0.18 MPa, and the circulating cooling water can cool the piston rod.
Preferably, a hydrogen detection port and a cooling water detection port are arranged between the primary compression cylinder and the secondary compression cylinder and the corresponding water cooling cylinder, and a bidirectional sealing ring is arranged between the hydrogen detection port and the corresponding cooling water detection port;
and both sides of each hydrogen detection port and each cooling water detection port are provided with a dustproof ring and a plurality of sealing rings, and the dustproof rings and the sealing rings are sleeved on the piston rod. The dust ring and the sealing ring can avoid leakage of cooling water or gas, the hydrogen detection port can detect whether hydrogen leaks, the cooling water detection port can detect whether cooling water leaks, and the sealing ring can prevent different media from contacting to ensure system safety.
Preferably, the upper end of the primary compression cylinder is provided with an air inlet C2 and an air outlet D2, the lower end of the primary compression cylinder is provided with an air inlet C1 and an air outlet D1, the lower end of the secondary compression cylinder is provided with an air inlet C3 and an air outlet D3, the upper end of the secondary compression cylinder is provided with an air inlet C4 and an air outlet D4, one-way valves are respectively installed on the air inlets C1-C4 and the air outlets D1-D4, the air outlet D2 is communicated with the air inlet C3, and the air outlet D1 is communicated with the air inlet C4.
Preferably, the effective volume ratio of the rodless chamber to the rod chamber of each of the primary compression cylinder and the secondary compression cylinder is 2: 1.
Preferably, the ratio of the cross-sectional area of the primary compression cylinder to the cross-sectional area of the secondary compression cylinder is 2: 1.
Preferably, the primary compression cylinder is provided with an axial primary cooling channel, a primary water cylinder is sleeved outside the primary compression cylinder, the primary water cylinder and the primary compression cylinder are arranged at intervals to form a primary cooling jacket, and the primary cooling jacket and the primary cooling channel are both connected with a cooling system;
the secondary compression cylinder is provided with an axial secondary cooling channel, a secondary water cylinder is sleeved outside the secondary compression cylinder, the secondary water cylinder and the secondary compression cylinder are arranged at intervals to form a secondary cooling jacket, and the secondary cooling jacket and the secondary cooling channel are both connected with a cooling system.
Preferably, the hydraulic system includes a working oil pump, an electromagnetic directional valve, an overflow valve and a hydraulic oil tank, an oil inlet of the working oil pump is communicated with the hydraulic oil tank, an oil outlet of the working oil pump is simultaneously communicated with an oil inlet of the electromagnetic directional valve and an oil inlet of the overflow valve, an oil return port of the electromagnetic directional valve and an oil outlet of the overflow valve are simultaneously communicated with the hydraulic oil tank, two working oil ports of the electromagnetic directional valve are simultaneously communicated with two ends of the hydraulic cylinder, and when the oil inlet of the electromagnetic directional valve is communicated with one working oil port, the oil return port of the electromagnetic directional valve is communicated with the other working oil port.
Preferably, the primary piston of the primary compression cylinder is connected with the piston rod through a screw, a primary threaded seat used for covering the screw is arranged on the primary piston, and a sealing ring is arranged between the primary threaded seat and the primary piston;
the second-stage piston of the second-stage compression cylinder is connected with the piston rod through a screw, a second-stage threaded seat used for covering the screw is arranged on the second-stage piston, and a sealing ring is arranged between the second-stage threaded seat and the second-stage piston. The first-level screw seat and the second-level screw seat can avoid corrosion of gas to the screw.
Preferably, the inlets C1 and C2 of the primary compression cylinder and the inlets C3 and C4 of the secondary compression cylinder are connected to a buffer and a filter. The buffer can play the steady voltage effect, and the impurity and the moisture in the hydrogen can be clear away to the filter.
Preferably, a displacement sensor for detecting the position of the piston of the hydraulic cylinder is arranged on an end cover of the hydraulic cylinder.
Compared with the prior art, the invention has the beneficial effects that:
this hydraulic drive hydrogen compressor's one-level compression cylinder and second grade compression cylinder have realized compressing gaseous second grade, and compression speed is fast, and can make the gas after the compression reach higher pressure, and cooling device can cool down one-level compression cylinder and second grade compression cylinder, avoids the temperature to rise, and the pneumatic cylinder drives one-level compression cylinder and second grade compression cylinder motion simultaneously, makes the atress balance at the piston rod both ends of pneumatic cylinder to gaseous second grade compression has been realized.
Both ends of the first-stage compression cylinder and the second-stage compression cylinder are provided with an air outlet and an air inlet, so that the compression of air can be realized in the reciprocating motion process of the piston rod, and the compression speed is high.
Drawings
Fig. 1 is a front cross-sectional schematic view of a hydraulically driven hydrogen compressor.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of B in fig. 1.
Fig. 4 is a schematic diagram of the connection of the cooling system to the hydraulically driven hydrogen compressor.
Fig. 5 is a schematic structural diagram of the connection of the hydraulic system and the hydraulic cylinder.
In the figure: 1. the hydraulic cylinder 2, a hydraulic cylinder end cover 3, a water cooling cylinder 4, a primary compression cylinder 401, a primary cooling channel 5, a primary cylinder end cover 6, a secondary compression cylinder 601, a secondary cooling channel 7, a secondary cylinder end cover 8, an air inlet storage tank 9, an air inlet buffer 10, a primary outer chamber cooler 11, a primary inner chamber cooler 12, a primary outer chamber buffer 13, a primary inner chamber buffer 14, a secondary outer chamber cooler 15, a secondary inner chamber cooler 16, an air outlet buffer 17, an air outlet storage tank 18, a primary piston 19, a secondary piston 20, a piston rod 21, a hydraulic cylinder piston 22, a primary water cylinder 23, a one-way valve 24, a secondary water cylinder 25, a water tank 2501, a water outlet 26, a water level gauge 27, a water tank temperature sensor 28, a check valve 29, a water pump 30, a pressurization valve 31, a water return buffer 32, The device comprises a radiator 33, a filter 34, an air radiator 35, a superconducting cooler 36, a one-way throttle valve 37, an electromagnetic directional valve 38, a relief valve 39, a working oil pump 40, a working oil pump motor 41, an air filter 42, a hydraulic oil tank 43, an electric heater 44, a hydraulic oil tank temperature sensor 45, a working oil pump oil inlet filter 46, a working oil pump oil return filter 47, an oil level and oil level display 48, a cooling oil pump filter 49, a cooling oil pump 50, a cooling oil pump motor 51 and an oil cooling buffer.
Detailed Description
Fig. 1 to 5 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 5.
The utility model provides a hydraulic drive hydrogen compressor, including pneumatic cylinder 1, the hydrogen compression cylinder, hydraulic system and cooling system, hydraulic system links to each other with pneumatic cylinder 1, cooling system links to each other with the hydrogen compression cylinder, the hydrogen compression cylinder includes one-level compression cylinder 4 and second grade compression cylinder 6, the vertical setting of pneumatic cylinder 1, one-level compression cylinder 4, pneumatic cylinder 1 and second grade compression cylinder 6 are by supreme setting gradually down, the piston rod 20 of pneumatic cylinder 1 links to each other with the piston of one-level compression cylinder 4 and second grade compression cylinder 6 simultaneously, the gas outlet of one-level compression cylinder 4 is linked together with the air inlet of second grade compression cylinder 6. This hydraulic drive hydrogen compressor's one-level compression jar 4 and second grade compression jar 6 have realized compressing gaseous second grade, the compression rate is fast, and can make the gas after the compression reach higher pressure, cooling device can cool down one-level compression jar 4 and second grade compression jar 6, avoid the compression jar temperature to rise, pneumatic cylinder 1 drives one-level compression jar 4 and second grade compression jar motion 6 simultaneously, the atress at the piston rod 20 both ends that make pneumatic cylinder 1 is balanced, and gaseous second grade compression has been realized.
The present invention is further described with reference to the following detailed description, however, it should be understood by those skilled in the art that the detailed description given herein with respect to the accompanying drawings is for better explanation and that the present invention is not necessarily limited to the specific embodiments, but rather, for equivalent alternatives or common approaches, may be omitted from the detailed description, while still remaining within the scope of the present application.
Specifically, the method comprises the following steps: as shown in FIGS. 1 to 3: and water cooling cylinders 3 are arranged between the corresponding one ends of the first-stage compression cylinder 4 and the second-stage compression cylinder 6 and the hydraulic cylinder 1. The vertical setting of pneumatic cylinder 1, the coaxial setting of one-level compression jar 4 is at the downside of pneumatic cylinder 1, and the coaxial setting of second grade compression jar 6 is at the upside of pneumatic cylinder 1, and water-cooling jar 3 and the coaxial setting of pneumatic cylinder 1, the weight of one-level compression jar 4 will be greater than the weight of second grade compression jar 6, makes whole hydraulic drive hydrogen compressor more firm.
Two ends of a piston rod 20 of the hydraulic cylinder 1 respectively penetrate through the water-cooled cylinder 3 on the corresponding side and then are connected with the primary piston 18 and the secondary piston 19. The hydraulic cylinder piston 21 is slidably arranged in the hydraulic cylinder 1, and the hydraulic cylinder piston 21 is sleeved outside the piston rod 20 and drives the piston rod 20 to synchronously move. A primary piston 18 of the primary compression cylinder 4 is connected with a piston rod 20 through a screw, a primary thread seat used for covering the screw is arranged on the primary piston 18, and a sealing ring is arranged between the primary thread seat and the primary piston 18; a secondary piston 19 of the secondary compression cylinder 6 is connected with a piston rod 20 through a screw, a secondary thread seat used for covering the screw is arranged on the secondary piston 19, and a sealing ring is arranged between the secondary thread seat and the secondary piston 19.
The effective volume ratio of the rodless cavity to the rod cavity of the primary compression cylinder 4 and the secondary compression cylinder 6 is 2:1, and the ratio of the sectional area of the primary compression cylinder 4 to the sectional area of the secondary compression cylinder 6 is 2: 1. The water cooling cylinder 3 between the first-stage compression cylinder 4 and the hydraulic cylinder 1 is cylindrical, and the water cooling cylinder 3 between the second-stage compression cylinder 6 and the hydraulic cylinder 1 is conical with the diameter gradually reduced from bottom to top.
The both ends of pneumatic cylinder 1 all are provided with pneumatic cylinder end cover 2, and pneumatic cylinder end cover 2 is connected with the correspondence end detachable of pneumatic cylinder 1, and the both ends of pneumatic cylinder 1 respectively with the pneumatic cylinder end cover 2 sealing connection who corresponds the side. Two ends of the hydraulic cylinder piston 21 respectively slide through the hydraulic cylinder end covers 2 on the corresponding sides, and the piston rod 20 is connected with the hydraulic cylinder end covers 2 in a sealing mode.
The both ends of one-level compression cylinder 4 all are provided with one-level cylinder end cover 5, and one-level cylinder end cover 5 is connected with the one-level compression cylinder 4's that corresponds end detachable respectively, and the both ends of one-level compression cylinder 4 respectively with the one-level cylinder end cover 5 sealing connection who corresponds the side. One end of the water cooling cylinder 3 between the first-stage compression cylinder 4 and the hydraulic cylinder 1 is hermetically connected with the first-stage cylinder end cover 5 adjacent to the water cooling cylinder, the other end of the water cooling cylinder is hermetically connected with the hydraulic cylinder end cover 2 adjacent to the water cooling cylinder, and the lower end of the piston rod 20 penetrates through the first-stage cylinder end cover 5 on the corresponding side and then is connected with the first-stage piston 18.
The primary piston 18 divides the inner chamber of the primary compression cylinder 4 into a primary inner chamber close to the hydraulic cylinder 1 and a primary outer chamber far from the hydraulic cylinder 1. The upper end of the primary compression cylinder 4 is provided with an air inlet C2 and an air outlet D2, the lower end is provided with an air inlet C1 and an air outlet D1, the air inlet C1 and the air outlet D1 are arranged on the lower primary cylinder end cover 5, and the air inlet C2 and the air outlet D2 are arranged on the upper primary cylinder end cover 5. Check valves 23 are connected to the inlets C1 and C2 and the outlets D1 and D2.
The cylinder wall of the primary compression cylinder 4 is provided with an axial primary cooling channel 401, and a plurality of primary cooling channels 401 are uniformly distributed at intervals around the primary compression cylinder 4. The one-level compression cylinder 4 is externally sleeved with a one-level water cylinder 22, the one-level water cylinder 22 and the one-level compression cylinder 4 are coaxially arranged, the one-level water cylinder 22 and the one-level compression cylinder 4 are arranged at intervals to form a one-level cooling jacket arranged around the one-level compression cylinder 4, one-level cylinder end cover 5 is provided with a water inlet communicated with all one-level cooling channels 401 and the one-level cooling jacket, and the other one-level cylinder end cover 5 is provided with a water outlet communicated with the plurality of one-level cooling channels 401 and the one-level cooling jacket.
Two ends of the second-stage compression cylinder 6 are respectively provided with a second-stage cylinder end cover 7, the second-stage cylinder end covers 7 are detachably connected with corresponding ends of the second-stage compression cylinder 6 respectively, and two ends of the second-stage compression cylinder 6 are respectively connected with the second-stage cylinder end covers 7 on corresponding sides in a sealing mode. One end of the water-cooling cylinder 3 positioned between the secondary compression cylinder 6 and the hydraulic cylinder 1 is hermetically connected with the secondary cylinder end cover 7 adjacent to the water-cooling cylinder, the other end of the water-cooling cylinder 3 is hermetically connected with the hydraulic cylinder end cover 2 adjacent to the water-cooling cylinder, and the upper end of the piston rod 20 penetrates through the secondary cylinder end cover 7 on the corresponding side and then is connected with the secondary piston 19.
The secondary piston 19 divides the inner chamber of the secondary compression cylinder 6 into a secondary inner chamber adjacent the cylinder 1 and a secondary outer chamber remote from the cylinder 1. The upper end of the secondary compression cylinder 6 is provided with an air inlet C4 and an air outlet D4, the lower end is provided with an air inlet C3 and an air outlet D3, the air inlet C3 and the air outlet D3 are arranged on the lower secondary cylinder end cover 7, and the air inlet C4 and the air outlet D4 are arranged on the upper secondary cylinder end cover 7. Check valves 23 are connected to the inlets C3 and C4 and the outlets D3 and D4.
The cylinder wall of the secondary compression cylinder 6 is provided with an axial secondary cooling channel 601, and a plurality of secondary cooling channels 601 are uniformly distributed at intervals around the secondary compression cylinder 6. The second-stage compression cylinder 6 is sleeved with a second-stage water cylinder 24, the second-stage water cylinder 24 and the second-stage compression cylinder 6 are coaxially arranged, the second-stage water cylinder 24 and the second-stage compression cylinder 6 are arranged at intervals to form a second-stage cooling jacket arranged around the second-stage compression cylinder 6, one second-stage cylinder end cover 6 is provided with a water inlet communicated with all the second-stage cooling channels 601 and the second-stage cooling jacket, and the other second-stage cylinder end cover 6 is provided with a water outlet communicated with the second-stage cooling channels 601 and the second-stage cooling jacket.
All be provided with hydrogen on one-level cylinder end cover 5 and the second grade cylinder end cover 7 that is close to water-cooling cylinder 3 and detect the mouth with the cooling water, the cooling water detects the mouth and is close to the water-cooling cylinder 3 setting of corresponding side, and hydrogen detects the mouth and detects all to be provided with between the mouth rather than the adjacent cooling water and be used for two sealed sealing rings of side, and in this embodiment, the sealing ring is the O shape sealing ring, and the O shape sealing ring cover is established on piston rod 20.
Both sides of every hydrogen detects mouth and cooling water and detects the mouth all are provided with dust ring and multichannel sealing washer, guarantee that piston rod 20 does not have under the reciprocating motion operating mode and leak, and dust ring and sealing washer all overlap and establish on piston rod 20.
Sealing rings and supporting rings are arranged between the piston rod 20 and the primary cylinder end cover 5 and between the piston rod 20 and the secondary cylinder end cover 7, so that the gas is effectively controlled to have no leakage at high pressure and high temperature.
Two air inlets C1 and C2 of the primary compression cylinder 4 are connected with an air inlet storage tank 8 and an air inlet buffer 9, an air inlet of the air inlet storage tank 8 is connected with an air input pipe, an air outlet of the air inlet storage tank 8 is communicated with an air inlet of the air inlet buffer 9, an air outlet of the air inlet buffer 9 is simultaneously communicated with two air inlets C1 and C2 of the primary compression cylinder 4, and air inlets C1 and C2 of the primary compression cylinder 4 are also connected with filters. The outlet port D2 of the primary compression cylinder 4 is in communication with the inlet port C3 of the secondary compression cylinder 6 and the outlet port D1 of the primary compression cylinder 4 is in communication with the inlet port C4 of the secondary compression cylinder 6. The outlet port D2 is connected in series with the first-stage interior chamber cooler 11 and the first-stage interior chamber buffer 13 and then communicated with the inlet port C3. The outlet D1 is communicated with the inlet C4, and the outlet D1 is communicated with the inlet C4 after being serially connected with the primary outer chamber cooler 10 and the primary outer chamber buffer 12 in sequence.
Two air outlets D3 and D4 of the secondary compression cylinder 6 are connected with the same air outlet buffer 16 and then communicated with an air outlet storage tank 17, and the air outlet storage tank 17 is connected with an output pipe. The outlet port D3 of the secondary compression cylinder 6 is connected in series with the secondary inner chamber cooler 15 and then communicated with the air outlet buffer 16, and the outlet port D4 of the secondary compression cylinder 6 is connected in series with the secondary outer chamber cooler 14 and then communicated with the air outlet buffer 16.
As shown in fig. 4: the cooling system comprises a water tank 25 and a water pump 29, wherein the top of the water tank 15 is provided with an exhaust hole, and the bottom of the water tank 25 is provided with a water discharge hole 2501. The water tank 25 is further provided at one side thereof with a water level gauge 26 for sensing a water level of the water tank 25 and a water tank temperature sensor 27 for sensing a water temperature of the water tank 25. The inlet end of the water pump 29 is communicated with the water tank 25, and the inlet end of the water pump 29 is provided with a check valve 28. The liquid outlet end of the water pump 29 is simultaneously communicated with the water inlets of the two water cooling cylinders 3, the water inlet on the first-stage cylinder end cover 5 and the water inlet on the second-stage cylinder end cover 7, and the water outlets of the two water cooling cylinders 3, the water outlet on the first-stage cylinder end cover 5 and the water outlet on the second-stage cylinder end cover 7 are simultaneously communicated with the water tank 25, so that the recycling of cooling water is realized, and the waste of water resources is avoided. The one-way valve 23 and the pressure valve 30 are sequentially connected to the liquid outlet end of the water pump 29 in series, the pressure valve 30 can pressurize the cooling water, the flow rate of the cooling water is guaranteed, and the cooling effect of the gas compressor is better.
The cooling system further comprises a water return buffer 31, a radiator 32 and a filter 33, wherein a water inlet of the water return buffer 31 is communicated with water outlets of the two water cooling cylinders 3, a water outlet on the first-stage cylinder end cover 5 and a water outlet on the second-stage cylinder end cover 7, and a water outlet of the water return buffer 33 is communicated with the water tank 25 after being sequentially connected with the radiator 32 and the filter 33 in series, so that the water cooling can be realized, the water can be filtered, the cooling effect is guaranteed, and the water pump 29 is prevented from being damaged.
As shown in fig. 5: the hydraulic system comprises a working oil pump 39, an electromagnetic directional valve 37, an overflow valve 38 and a hydraulic oil tank 42, wherein an oil inlet of the working oil pump 39 is communicated with the hydraulic oil tank 42, an oil outlet of the working oil pump 39 is simultaneously communicated with an oil inlet of the electromagnetic directional valve 37 and an oil inlet of the overflow valve 38, an oil return port of the electromagnetic directional valve 37 and an oil outlet of the overflow valve 38 are simultaneously communicated with the hydraulic oil tank 42, two working oil ports of the electromagnetic directional valve 37 are simultaneously communicated with two ends of the hydraulic cylinder 1, and when the oil inlet of the electromagnetic directional valve 37 is communicated with one working oil port, the oil return port of the electromagnetic directional valve 37 is communicated with the other working oil port.
An air cleaner 41 is provided above the hydraulic oil tank 42, a hydraulic oil tank temperature sensor 44 and a level oil display 47 are provided in the hydraulic oil tank 42, and an electric heater 43 is provided in the hydraulic oil tank 42.
The working oil pump 39 is connected with a working oil pump motor 40, the liquid inlet end of the working oil pump 39 is connected with a working oil pump oil inlet filter 45, and the oil return port of the electromagnetic directional valve 37 is connected with a working oil pump oil return filter 46.
The hydraulic oil tank 42 further comprises a cooling oil pump 49, an air radiator 34 and a superconducting cooler 35, the cooling oil pump 49 is connected with a cooling oil pump motor 50, the oil inlet end of the cooling oil pump 49 is communicated with the hydraulic oil tank 42, the oil inlet end of the cooling oil pump 49 is connected with a cooling oil pump filter 48, the liquid outlet end of the cooling oil pump 49 is communicated with the liquid inlet end of the superconducting cooler 35, and the liquid outlet end of the superconducting cooler 35 is communicated with the hydraulic oil tank 42 after being connected with an oil cooling buffer 51 in series. The superconducting cooler 35 communicates with the air radiator 34.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a hydraulic drive hydrogen compressor, includes pneumatic cylinder (1), hydrogen compression cylinder, hydraulic system and cooling system, hydraulic system links to each other with pneumatic cylinder (1), and cooling system links to each other its characterized in that with hydrogen compression cylinder: the hydrogen compression cylinder comprises a first-stage compression cylinder (4) and a second-stage compression cylinder (6), the hydraulic cylinder (1) is vertically arranged, the first-stage compression cylinder (4), the hydraulic cylinder (1) and the second-stage compression cylinder (6) are sequentially arranged from bottom to top, a piston rod (20) of the hydraulic cylinder (1) is connected with pistons of the first-stage compression cylinder (4) and the second-stage compression cylinder (6) simultaneously, and an air outlet of the first-stage compression cylinder (4) is communicated with an air inlet of the second-stage compression cylinder (6).
2. The hydraulically driven hydrogen compressor as claimed in claim 1, wherein: and water cooling cylinders (3) are arranged between the first-stage compression cylinder (4) and the second-stage compression cylinder (6) and the hydraulic cylinder (1), the water outlets of the water cooling systems are respectively communicated with the water inlets of the two water cooling cylinders (3), and the water inlets of the water cooling systems are respectively communicated with the water outlets of the two water cooling cylinders (3).
3. The hydraulically driven hydrogen compressor as claimed in claim 2, wherein: a hydrogen detection port and a cooling water detection port are respectively arranged between the primary compression cylinder (4) and the secondary compression cylinder (6) and the corresponding water cooling cylinder (3), and a bidirectional sealing ring is respectively arranged between the hydrogen detection port and the corresponding cooling water detection port;
both sides of each hydrogen detection port and each cooling water detection port are provided with a dustproof ring and a plurality of sealing rings, and the dustproof rings and the sealing rings are sleeved on the piston rod (20).
4. The hydraulically driven hydrogen compressor as claimed in claim 1, wherein: the upper end of one-level compression cylinder (4) be provided with air inlet C2 and gas outlet D2, the lower extreme is provided with air inlet C1 and gas outlet D1, the lower extreme of second grade compression cylinder (6) is provided with air inlet C3 and gas outlet D3, the upper end of second grade compression cylinder (6) is provided with air inlet C4 and gas outlet D4, wherein, check valve (23) are all installed to air inlet C1~ C4 and gas outlet D1~ D4, gas outlet D2 is linked together with air inlet C3, gas outlet D1 is linked together with air inlet C4.
5. The hydraulically driven hydrogen compressor as claimed in claim 4, wherein: the effective volume ratio of the rodless cavity to the rod cavity of the primary compression cylinder (4) to the secondary compression cylinder (6) is 2: 1.
6. The hydraulically driven hydrogen compressor as claimed in claim 1 or 5, characterized in that: the ratio of the sectional area of the first-stage compression cylinder (4) to the sectional area of the second-stage compression cylinder (6) is 2: 1.
7. The hydraulically driven hydrogen compressor as claimed in claim 1, wherein: the axial primary cooling channel (401) is arranged on the primary compression cylinder (4), the primary water cylinder (22) is sleeved outside the primary compression cylinder (4), the primary water cylinder (22) and the primary compression cylinder (4) are arranged at intervals to form a primary cooling jacket, and the primary cooling jacket and the primary cooling channel (401) are both connected with a cooling system;
the two-stage compression cylinder (6) is provided with an axial two-stage cooling channel (601), a two-stage water cylinder (24) is sleeved outside the two-stage compression cylinder (6), the two-stage water cylinder (24) and the two-stage compression cylinder (6) are arranged at intervals to form a two-stage cooling jacket, and the two-stage cooling jacket and the two-stage cooling channel (601) are both connected with a cooling system.
8. The hydraulically driven hydrogen compressor as claimed in claim 1, wherein: the hydraulic system comprises a working oil pump (39), an electromagnetic directional valve (37), an overflow valve (38) and a hydraulic oil tank (42), wherein an oil inlet of the working oil pump (39) is communicated with the hydraulic oil tank (42), an oil outlet of the working oil pump (39) is communicated with an oil inlet of the electromagnetic directional valve (37) and an oil inlet of the overflow valve (38) at the same time, an oil return port of the electromagnetic directional valve (37) and an oil outlet of the overflow valve (38) are communicated with the hydraulic oil tank (42) at the same time, two working oil ports of the electromagnetic directional valve (37) are communicated with two ends of a hydraulic cylinder (1) at the same time, and when an oil inlet of the electromagnetic directional valve (37) is communicated with one working oil port, the oil return port of the electromagnetic directional valve (37) is communicated with the other working oil port.
9. The hydraulically driven hydrogen compressor as claimed in claim 1, wherein: a primary piston (18) of the primary compression cylinder (4) is connected with a piston rod (20) through a screw, a primary thread seat used for covering the screw is arranged on the primary piston (18), and a sealing ring is arranged between the primary thread seat and the primary piston (18);
a second-stage piston (19) of the second-stage compression cylinder (6) is connected with a piston rod (20) through a screw, a second-stage threaded seat used for covering the screw is arranged on the second-stage piston (19), and a sealing ring is arranged between the second-stage threaded seat and the second-stage piston (19).
10. The hydraulically driven hydrogen compressor as claimed in claim 1, wherein: and the air inlets C1 and C2 of the primary compression cylinder (4) and the air inlets C3 and C4 of the secondary compression cylinder (6) are connected with a buffer and a filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210065627.XA CN114382674A (en) | 2022-01-20 | 2022-01-20 | Hydraulic drive hydrogen compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210065627.XA CN114382674A (en) | 2022-01-20 | 2022-01-20 | Hydraulic drive hydrogen compressor |
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| CN114382674A true CN114382674A (en) | 2022-04-22 |
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| CN202210065627.XA Pending CN114382674A (en) | 2022-01-20 | 2022-01-20 | Hydraulic drive hydrogen compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189545A (en) * | 2023-11-08 | 2023-12-08 | 河南豫氢装备有限公司 | Reducing piston rod suitable for liquid-driven compressor and mounting method thereof |
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