Hydrogen compression device with heat recovery function for salt cavern hydrogen storage

Abstract

The invention discloses a hydrogen compression device with a heat recovery function for salt cavern hydrogen storage, and relates to the technical field of salt cavern hydrogen storage, the hydrogen compression device comprises an evaporation box, a detection mechanism is arranged above the evaporation box, an emergency pressure relief mechanism is arranged above the evaporation box, the detection mechanism comprises an air exhaust detection unit, and the air exhaust detection unit is arranged above the evaporation box. The air exhaust detection unit can detect whether the device carries out intermittent vacuumizing work or not, the sealing detection unit is arranged above the evaporation box and can check the sealing condition of the connecting position of the evaporation box and a vacuumizing pipeline, and the emergency pressure relief mechanism is arranged above the evaporation box and can check the sealing condition of the connecting position of the evaporation box and the vacuumizing pipeline. According to the hydrogen compression device with the heat recovery function for salt cavern hydrogen storage, the air exhaust detection unit, the sealing detection unit and the emergency pressure relief mechanism are arranged, so that the problem that the device needs to be checked regularly in the using process of the device can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of salt cavern hydrogen storage, and in particular to a hydrogen compression device with a heat recovery function for salt cavern hydrogen storage. Background Art

[0002] Salt cavern hydrogen storage is a technology that uses underground salt caverns to store hydrogen. Salt caverns are caves created in salt layers through water-soluble mining. They can be used to store various gases, including hydrogen. Before hydrogen is stored, it needs to be compressed using a hydrogen compression device. In the process of compressing hydrogen, the molecular distance between hydrogen molecules decreases in existing hydrogen compression devices, which generates heat. In order to increase the utilization rate of energy, existing hydrogen compressors are equipped with heat recovery mechanisms.

[0003] At present, although the existing hydrogen compressors are equipped with heat recovery mechanisms to recover the heat generated during the hydrogen compression process, the hydrogen compression mechanisms need to be used in conjunction with a variety of devices when in use, such as; a vacuum maintaining device is needed to ensure that the internal space of the heat recovery mechanism is in a vacuum state, but the vacuum maintaining device lacks a self-inspection function, so workers need to frequently check the working status of the vacuum maintaining device and the sealing of the equipment.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing hydrogen compression devices with heat recovery function for salt cavern hydrogen storage on the market, and even if they can be solved, they need to be solved through external tools, which makes it impossible to achieve the desired effect. Therefore, we propose a hydrogen compression device with heat recovery function for salt cavern hydrogen storage. Summary of the invention

[0005] The object of the present invention is to provide a hydrogen compression device with heat recovery function for salt cavern hydrogen storage to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a hydrogen compression device with heat recovery function for salt cavern hydrogen storage, comprising an evaporation box, a detection mechanism is arranged above the evaporation box, and an emergency pressure relief mechanism is arranged above the evaporation box;

[0007] The detection mechanism includes an air extraction detection unit, which is arranged above the evaporation box and can detect whether the device performs intermittent vacuum extraction;

[0008] The sealing detection unit is arranged above the evaporation box, and the sealing detection unit can check the sealing condition of the connection between the evaporation box and the vacuum pipe;

[0009] The emergency pressure relief mechanism can be used to discharge the air pressure in the evaporator box urgently.

[0010] Preferably, the air extraction detection unit comprises a rectangular box, the back side of the rectangular box is fixedly connected to the front side of the evaporation box, the upper surface of the evaporation box is fixedly connected to a vacuum pump, the output end of the vacuum pump is fixedly connected to an exhaust pipe, the left side of the rectangular box is respectively fixedly connected to a first reaction box and a second reaction box, the front and back sides of the second reaction box are provided with vents, one end of the exhaust pipe is fixedly connected to the front side of the second reaction box, the exhaust pipe is connected to the inside of the second reaction box through one of the vents, the inner wall of the second reaction box is rotatably connected to a spiral cylinder, the spiral cylinder A spiral shaft is slidably connected inside, a circular plate is fixedly connected to the top of the spiral shaft, an inclined plate is fixedly connected to the upper surface of the circular plate, a first circular ball is arranged on the outer side of the inclined plate, and the outer surface of the first circular ball contacts the outer surface of the inclined plate and the inner wall of the first reaction box respectively, the spiral shaft, the circular plate, the inclined plate and the first circular ball are all slidably connected to the inside of the first reaction box, the outer surface of the spiral cylinder is rotatably connected to three groups of first rotating plates and gears, and the number of the first rotating plates in each group is two, the front of the second reaction box is fixedly connected to the third reaction box, and the second reaction box is The inner wall of the box is rotatably connected to a first rotating shaft, the outer surface of the first rotating shaft is fixedly connected to a rotating plate, the outer surface of the rotating plate contacts the outer surface of the gear, the left side of the rotating plate is fixedly connected to a first return spring, the front side of the second reaction box is fixedly connected to a fixed plate, the right side of the fixed plate is fixedly connected to the left side of the first return spring, a lifting plate is arranged inside the third reaction box, the back side of the lifting plate contacts the front side of the second reaction box, the inner wall of the lifting plate is fixedly connected to a hydraulic rod, the telescopic end of the hydraulic rod is fixedly connected to a limiting block, the The left side of the limit block is in contact with the right side of the rotating plate, the bottom surface of the rectangular box is fixedly connected to a support block, and a striking block is arranged above the support block, and the bottom surface of the striking block is in contact with the upper surface of the support block, the outer surface of the spiral cylinder is fixedly connected to a first transmission rope, the inner wall of the second reaction box and the inner wall of the third reaction box are jointly fixedly connected to a circular cylinder, the inner wall of the circular cylinder is fixedly connected to a second return spring, the end of the second return spring close to the spiral cylinder is fixedly connected to a moving plate, and the back side of the moving plate is fixedly connected to an end of the first transmission rope close to the second return spring.

[0011] Preferably, a support base is provided at the rear of the evaporator box, the upper surface of the support base is fixedly connected to a reciprocating hydrogen compressor body, the upper surface of the evaporator box is fixedly connected to a fixing frame, and the inner wall of the fixing frame is fixedly connected to the outer surface of the reciprocating hydrogen compressor body.

[0012] Preferably, a condenser is fixedly connected to the inner wall of the evaporator box, the top end of the condenser is fixedly connected to the output end of the reciprocating hydrogen compressor body, and the left end of the condenser passes through the evaporator box and extends to the left side of the evaporator box.

[0013] Preferably, the upper surface of the evaporator box is fixedly connected with a water injection pipe, and the outer surface of the water injection pipe is threadedly connected with a threaded cover.

[0014] Preferably, a storage box is fixedly connected to the front of the support block, a drawer is slidably connected to the interior of the storage box, a handle is fixedly connected to the left side of the drawer, two groups of supporting legs are fixedly connected to the upper surface of the storage box, each group of supporting legs has two supporting legs, a generator set is commonly fixedly connected to the top ends of the two groups of supporting legs, and a battery and an inverter are respectively fixedly connected to the upper surface of the storage box.

[0015] Preferably, a circular slot is provided on the upper surface of the support block, a circular block is clamped inside the circular slot, and the top end of the circular block is fixedly connected to the bottom surface of the struck block.

[0016] Preferably, a T-shaped slide groove is provided on the front side of the second reaction box, a T-shaped slider is slidably connected inside the T-shaped slide groove, and the front side of the T-shaped slider is fixedly connected to the back side of the lifting plate.

[0017] Preferably, the sealing detection unit comprises a square box, the bottom surface of the square box is fixedly connected to the upper surface of the evaporation box, the upper surface of the square box is fixedly connected to an air intake pipe, the inner wall of the square box is rotatably connected to a long axis, the outer surface of the long axis is fixedly connected to three groups of second rotating plates, and the number of the second rotating plates in each group is two, the left end of the long axis is fixedly connected to a baffle, the outer surface of the long axis is fixedly connected to a second transmission rope, the inner wall of the evaporation box is rotatably connected to a first rotating shaft, the inner wall of the second reaction box is rotatably connected to a second rotating shaft, and the second transmission The outer surface of the rope is in contact with the outer surface of the first rotating shaft and the outer surface of the second rotating shaft respectively; the inner wall of the third reaction box is rotatably connected to the second rotating shaft; the outer surface of the second rotating shaft is fixedly connected to a flip plate; the inner wall of the flip plate is rotatably connected to a roller; the outer surface of the roller is in contact with the bottom surface of the lifting plate; the top end of the second transmission rope is fixedly connected to the bottom surface of the flip plate; the input end of the vacuum pump is fixedly connected to an exhaust pipe; the bottom end of the exhaust pipe passes through the square box and extends to the inside of the square box; the bottom end of the exhaust pipe is fixedly connected to the upper surface of the evaporation box.

[0018] Preferably, the emergency pressure relief mechanism includes an emergency pipe, the bottom end of the emergency pipe is fixedly connected to the upper surface of the rectangular box, the upper surface of the first reaction box is fixedly connected to a rectangular plate, the upper surface of the rectangular plate is provided with a groove, a second circular ball is arranged inside the groove, and connecting ports are provided on the back of the rectangular box and the front of the evaporation box, the inner wall of the second rectangular box is rotatably connected to a transmission shaft, the outer surface of the transmission shaft is fixedly connected to a turbine plate group, the inner wall of the rectangular box is fixedly connected to two third return springs, the two third return springs are jointly fixedly connected to an L-shaped plate at one end close to the evaporation box, the upper surface of the L-shaped plate is provided with a first exhaust port, the upper surface of the rectangular box is provided with a second exhaust port, the emergency pipe is connected to the inside of the rectangular box through the second exhaust port, the right side of the rectangular box is fixedly connected to an air release pipe, the outer surface of the air release pipe is fixedly connected to a timing solenoid valve, and the end of the transmission shaft close to the generator set is fixedly connected to the input end of the generator set.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention is provided with an air extraction detection unit, which can be used to perform self-inspection on the intermittent air extraction working state of the vacuum pump, thereby ensuring that when the vacuum pump fails to work normally, a signal can be sent to the outside world so that the staff can be informed in time.

[0021] 2. The present invention provides a sealing detection unit, which can be used to check the sealing condition of the connection between the evaporator box and the exhaust pipe, thereby effectively avoiding the problem of a large amount of air entering the interior of the evaporator box due to sealing problems, thereby causing the internal air pressure of the evaporator box to increase.

[0022] 3. The present invention provides an emergency pressure relief mechanism, which can be used to check the pressure relief condition of the device, thereby avoiding the problem of excessive pressure inside the evaporator box and the rectangular box caused by the failure of the pressure relief device to operate. By providing an air extraction detection unit, a sealing detection unit and an emergency pressure relief mechanism, the need to conduct regular inspections of the device during use can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the evaporation box of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the vacuum pump of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the spiral shaft of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the gear of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the spiral drum of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the T-shaped slider of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the first transmission rope of the present invention;

[0031] Fig. 9 is a schematic structural diagram of a third return spring of the present invention;

[0032] Fig.10 is a schematic structural diagram of the second transmission rope of the present invention;

[0033] Fig.11 It is a structural schematic diagram of the emergency pipe of the present invention;

[0034] Fig.12 It is a right side structural schematic diagram of the timing solenoid valve of the present invention;

[0035] Fig.13 It is a left-side structural schematic diagram of the generator set of the present invention.

[0036] In the figure: 1. evaporation box; 2. detection mechanism; 21. exhaust detection unit; 2101. exhaust pipe; 2102. vacuum pump; 2103. rectangular box; 2104. support block; 2105. impact block; 2106. fixing frame; 2107. water injection pipe; 2108. support seat; 2109. threaded cover; 2110. reciprocating hydrogen compressor body; 2111. condenser; 2112. inverter; 2113. handle; 2114. drawer; 2115. storage box; 2116. battery ; 2117, support leg; 2118, generator set; 2119, second reaction box; 2120, third reaction box; 2121, round block; 2122, round slot; 2123, first reaction box; 2124, first round ball; 2125, inclined plate; 2126, round plate; 2127, spiral shaft; 2128, spiral cylinder; 2129, first rotating plate; 2130, gear; 2131, first transmission rope; 2132, first return spring; 2133, rotating plate; 2134 , first rotating shaft; 2135, hydraulic rod; 2136, lifting plate; 2137, stop block; 2138, T-shaped slide; 2139, round cylinder; 2140, T-shaped slider; 2141, second return spring; 2142, moving plate; 2143, vent; 2144, fixed plate; 22, sealing detection unit; 2201, square box; 2202, air inlet pipe; 2203, exhaust pipe; 2204, long axis; 2205, baffle; 2206, second transmission rope; 2207, first rotating shaft Shaft; 2208, flip plate; 2209, second rotating shaft; 2210, second rotating shaft; 2211, roller; 2212, second rotating plate; 3, emergency pressure relief mechanism; 301, emergency pipe; 302, second round ball; 303, rectangular plate; 304, second exhaust port; 305, third return spring; 306, L-shaped plate; 307, turbine plate group; 308, transmission shaft; 309, connecting port; 310, groove; 311, timing solenoid valve; 312, exhaust pipe; 313, first exhaust port. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1-Figure 8 The present invention provides a technical solution: a hydrogen compression device with heat recovery function for salt cavern hydrogen storage, comprising an evaporation box 1, a detection mechanism 2 is arranged above the evaporation box 1, and an emergency pressure relief mechanism 3 is arranged above the evaporation box 1;

[0039] The detection mechanism 2 includes an air extraction detection unit 21, which is disposed above the evaporation box 1. The air extraction detection unit 21 can detect whether the device performs intermittent vacuum extraction.

[0040] As a further limitation of the detection mechanism 2 of the present invention, the air extraction detection unit 21 includes a rectangular box 2103, the back of the rectangular box 2103 is fixedly connected to the front of the evaporation box 1, the upper surface of the evaporation box 1 is fixedly connected to a vacuum pump 2102, the output end of the vacuum pump 2102 is fixedly connected to an exhaust pipe 2101, the left side of the rectangular box 2103 is respectively fixedly connected to a first reaction box 2123 and a second reaction box 2119, the front and back of the second reaction box 2119 are provided with vents 2143, one end of the exhaust pipe 2101 is fixedly connected to the front of the second reaction box 2119, the exhaust pipe 2101 is connected to the inside of the second reaction box 2119 through one of the vents 2143, and the inside of the second reaction box 2119 is The wall is rotatably connected with a spiral cylinder 2128, the interior of the spiral cylinder 2128 is slidably connected with a spiral shaft 2127, the top of the spiral shaft 2127 is fixedly connected with a circular plate 2126, the upper surface of the circular plate 2126 is fixedly connected with an inclined plate 2125, the outer side of the inclined plate 2125 is provided with a first circular ball 2124, the outer surface of the first circular ball 2124 is respectively in contact with the outer surface of the inclined plate 2125 and the inner wall of the first reaction box 2123, the spiral shaft 2127, the circular plate 2126, the inclined plate 2125 and the first circular ball 2124 are all slidably connected to the interior of the first reaction box 2123, the outer surface of the spiral cylinder 2128 is rotatably connected with three groups of first rotating plates 2129 and gears 2130, each group of first rotating plates 21 The number of 29 is two, the front side of the second reaction box 2119 is fixedly connected to the third reaction box 2120, the inner wall of the second reaction box 2119 is rotatably connected to the first rotating shaft 2134, the outer surface of the first rotating shaft 2134 is fixedly connected to the rotating plate 2133, the outer surface of the rotating plate 2133 is in contact with the outer surface of the gear 2130, the left side of the rotating plate 2133 is fixedly connected to the first return spring 2132, the front side of the second reaction box 2119 is fixedly connected to the fixed plate 2144, the right side of the fixed plate 2144 is fixedly connected to the left side of the first return spring 2132, and the interior of the third reaction box 2120 is provided with a lifting plate 2136, and the back of the lifting plate 2136 is in contact with the second reaction box 2119 The inner wall of the lifting plate 2136 is fixedly connected with a hydraulic rod 2135, and the telescopic end of the hydraulic rod 2135 is fixedly connected with a limiting block 2137. The left side of the limiting block 2137 contacts the right side of the rotating plate 2133. The bottom surface of the rectangular box 2103 is fixedly connected with a supporting block 2104. A striking block 2105 is arranged above the supporting block 2104. The bottom surface of the striking block 2105 contacts the upper surface of the supporting block 2104. The outer surface of the spiral cylinder 2128 is fixedly connected with a first transmission rope 2131. The inner wall of the second reaction box 2119 and the inner wall of the third reaction box 2120 are fixedly connected with a circular cylinder 2139. The inner wall of the circular cylinder 2139 is fixedly connected with a second return spring 2141.The end of the second return spring 2141 close to the spiral tube 2128 is fixedly connected to the moving plate 2142, and the back of the moving plate 2142 is fixedly connected to the end of the first transmission rope 2131 close to the second return spring 2141. By providing an air extraction detection unit 21, the air extraction detection unit 21 can be used to self-check the intermittent air extraction working state of the vacuum pump 2102, so as to ensure that when the vacuum pump 2102 cannot work normally, a signal can be sent to the outside world so that the staff can be informed in time.

[0041] See also Figure 1 A support base 2108 is provided at the rear of the evaporator box 1, and a reciprocating hydrogen compressor body 2110 is fixedly connected to the upper surface of the support base 2108. A fixing frame 2106 is fixedly connected to the upper surface of the evaporator box 1, and the inner wall of the fixing frame 2106 is fixedly connected to the outer surface of the reciprocating hydrogen compressor body 2110. By providing the reciprocating hydrogen compressor body 2110, the reciprocating hydrogen compressor body 2110 can be used to effectively compress hydrogen, and the existence of the fixing frame 2106 can provide good support for the reciprocating hydrogen compressor body 2110.

[0042] See also Figure 2 A condenser 2111 is fixedly connected to the inner wall of the evaporator box 1, and the top of the condenser 2111 is fixedly connected to the output end of the reciprocating hydrogen compressor body 2110. The left end of the condenser 2111 passes through the evaporator box 1 and extends to the left side of the evaporator box 1. By providing the condenser 2111 and utilizing the good thermal conductivity of the condenser 2111, the heat generated during the compression of the hydrogen can be guided away.

[0043] See also Figure 1 The upper surface of the evaporator box 1 is fixedly connected with a water injection pipe 2107, and the outer surface of the water injection pipe 2107 is threadedly connected with a threaded cover 2109. By providing the water injection pipe 2107 and the threaded cover 2109, the water injection pipe 2107 can be used to add water to the inside of the evaporator box 1, and the threaded cover 2109 can prevent outside air from entering the inside of the evaporator box 1.

[0044] See also Figure 1A storage box 2115 is fixedly connected to the front of the support block 2104, a drawer 2114 is slidably connected to the interior of the storage box 2115, a handle 2113 is fixedly connected to the left side of the drawer 2114, two groups of support legs 2117 are fixedly connected to the upper surface of the storage box 2115, each group of support legs 2117 has two members, a generator set 2118 is fixedly connected to the top of the two groups of support legs 2117, a battery 2116 and an inverter 2112 are fixedly connected to the upper surface of the storage box 2115, respectively. By providing the generator set 2118, the generated electricity can be transmitted to the inverter 2112 and the battery 2116 through wires by the generator set 2118, and stored by the battery 2116.

[0045] See also Figure 3 A circular slot 2122 is provided on the upper surface of the support block 2104, and a circular block 2121 is clamped inside the circular slot 2122. The top of the circular block 2121 is fixedly connected to the bottom surface of the impact block 2105. By providing the circular block 2121 and utilizing the relationship that the circular block 2121 is clamped inside the circular slot 2122, the impact block 2105 can be disassembled and easily replaced.

[0046] See also Figure 7 A T-shaped slot 2138 is provided on the front of the second reaction box 2119, and a T-shaped slider 2140 is slidably connected inside the T-shaped slot 2138. The front of the T-shaped slider 2140 is fixedly connected to the back of the lifting plate 2136. By providing the T-shaped slot 2138 and the T-shaped slider 2140, and utilizing the connection relationship in which the T-shaped slider 2140 slides inside the T-shaped slot 2138, the lifting plate 2136 can be limited so that the lifting plate 2136 can only move up and down.

[0047] The specific implementation of this embodiment is as follows: when the device is needed, the vacuum pump 2102 is controlled to operate to create a vacuum state inside the evaporation box 1, and the reciprocating hydrogen compressor body 2110 is operated to suck hydrogen into the reciprocating hydrogen compressor body 2110 through the two upper pipes, and the valves in the two upper pipes are controlled to be closed, and then the internal hydrogen is squeezed to reduce the area occupied by the hydrogen, and then the two pipe valves located below the reciprocating hydrogen compressor body 2110 are controlled to open, and the squeezed hydrogen will enter the interior of the condenser 2111. It should be understood here that the condenser 2111 is made of copper with good thermal conductivity, and a large amount of water is placed inside the evaporation box 1, so the heat will be condensed. The tube 2111 quickly enters the water inside the evaporation box 1. At this time, it should be understood that the air pressure inside the evaporation box 1 is low, so the boiling point of the water will be greatly reduced, so that the waste heat when the hydrogen is generated can be used to boil the water inside the evaporation box 1 to a boiling state. As the water continues to boil, the water vapor will enter the rectangular box 2103 through the connecting port 309 opened on the back of the rectangular box 2103 and the front of the evaporation box 1, so that the turbine sheet group 307 on the outer surface of the transmission shaft 308 can be driven to rotate, thereby The power can be transmitted to the generator set 2118 through the transmission shaft 308, so that the generator set 2118 generates electricity. With the continuous operation of the device, some gas will appear after the water evaporates, so the vacuum pump 2102 needs to be intermittently operated to extract the gas to make the evaporation box 1 maintains a good vacuum state inside. When the vacuum pump 2102 is running, the gas inside the evaporation box 1 will be extracted through the exhaust pipe 2203, and discharged to the inside of the second reaction box 2119 through the exhaust pipe 2101 and one of the vents 2143. The gas entering the second reaction box 2119 will flow from the right side of the second reaction box 2119 to the vent 2143 opened on the back of the second reaction box 2119. During this period, the gas will drive the first rotating plate 2129 fixed on the outer surface of the spiral cylinder 2128 to rotate, thereby driving the spiral cylinder 2128 to rotate. In addition, the inner wall of the spiral cylinder 2128 is provided with a spiral groove, and the surface of the spiral shaft 2127 slidably connected inside the spiral cylinder 2128 is fixed with a spiral strip, and the two are connected. The spiral strips and the spiral grooves correspond to each other, so when the spiral barrel 2128 rotates, the spiral shaft 2127 will push the inclined plate 2125 and the first round ball 2124 to move upward, and when the spiral barrel 2128 rotates, it will be wrapped around the first transmission rope 2131 fixed on its surface, and the first transmission rope 2131 will pull the moving plate 2142 and the second return spring 2141 to stretch. Therefore, when the gas acting on the surface of the first rotating plate 2129 dissipates, the spiral barrel 2128 will not be blown by the gas, but will only be indirectly affected by the pulling force of the second return spring 2141. At this time, the spiral barrel 2128 should rotate in the opposite direction under the pulling force of the second return spring 2141, but the gear 2130 fixed on the surface of the spiral barrel 2128 is limited by the rotating plate 2133.The right side of the rotating plate 2133 is in contact with the left side of the limit block 2137, so the rotating plate 2133 cannot rotate toward the side of the first return spring 2132, and can only rotate to the side opposite to the first return spring 2132. Therefore, when the spiral cylinder 2128, the first rotating plate 2129 and the gear 2130 are rotated counterclockwise by the gas, the gear 2130 will drive the rotating plate 2133 to rotate clockwise, so the limit block 2137 will not affect the rotation of the rotating plate 2133 and the gear 2130. The second return spring 2141 pulls the spiral drum 2128 to rotate in the opposite direction when the gas dissipates, and the limit block 2137 limits the rotation of the gear 2130, the rotating plate 2133 and the spiral drum 2128. However, the position of the limit block 2137 is determined by the hydraulic rod 2135. Therefore, the hydraulic rod 2135 is set to drive the limit block 2137 to contract upward every certain period of time to contact the restriction on the gear 2130. At this time, the gear 2130 and the spiral drum 2128 will be in the second return spring 2141. The spiral cylinder 2128 rotates in the opposite direction under the action, and the spiral shaft 2127 sliding inside will also drive the inclined plate 2125 and the first round ball 2124 to move downward. It should be understood here that the time interval for the extension and retraction of the hydraulic rod 2135 is determined by the interval of intermittent air extraction of the vacuum pump 2102. Therefore, when the vacuum pump 2102 is performing intermittent air extraction normally, the next air extraction work will be performed before the spiral shaft 2127 completely enters the interior of the spiral cylinder 2128, and the extracted gas will once again act on the first rotating plate 2129, thereby driving the spiral shaft 2127 that is about to completely enter the interior of the spiral cylinder 2128 to push the first round ball 2124 upward again. When the vacuum pump 2102 cannot perform intermittent work, the spiral shaft 2127 will completely enter the interior of the spiral cylinder 2128. At this time, the first round ball 2124 above the spiral shaft 2127 will also fall downward through the outlet opened on the left side of the first reaction box 2123 until it falls on the surface of the impact block 2105, making a sound. ,

[0048] Example 2: Please refer to Figure 7 , Fig. 9 and Fig.10 The present invention provides a technical solution: a hydrogen compression device with heat recovery function for salt cavern hydrogen storage. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The sealing detection unit 22 is arranged above the evaporation box 1. The sealing detection unit 22 can check the sealing condition of the connection between the evaporation box 1 and the vacuum pipe.

[0049] As a further limitation of the detection mechanism 2 of the present invention, the sealing detection unit 22 includes a square box 2201, the bottom surface of the square box 2201 is fixedly connected to the upper surface of the evaporation box 1, the upper surface of the square box 2201 is fixedly connected to the air intake pipe 2202, the inner wall of the square box 2201 is rotatably connected to the long axis 2204, the outer surface of the long axis 2204 is fixedly connected to three groups of second rotating plates 2212, and the number of each group of second rotating plates 2212 is two, the left end of the long axis 2204 is fixedly connected to a baffle 2205, the outer surface of the long axis 2204 is fixedly connected to a second transmission rope 2206, the inner wall of the evaporation box 1 is rotatably connected to the first rotating shaft 2207, the inner wall of the second reaction box 2119 is rotatably connected to the second rotating shaft 2209, the outer surface of the second transmission rope 2206 is in contact with the outer surface of the first rotating shaft 2207 and the outer surface of the second rotating shaft 2209 respectively, and the third reaction box 2120 is The inner wall is rotatably connected to a second rotating shaft 2210, and the outer surface of the second rotating shaft 2210 is fixedly connected to a flip plate 2208. The inner wall of the flip plate 2208 is rotatably connected to a roller 2211, and the outer surface of the roller 2211 contacts the bottom surface of the lifting plate 2136. The top of the second transmission rope 2206 is fixedly connected to the bottom surface of the flip plate 2208. The input end of the vacuum pump 2102 is fixedly connected to an exhaust pipe 2203, and the bottom end of the exhaust pipe 2203 passes through the square box 2201 and extends to the interior of the square box 2201. The bottom end of the exhaust pipe 2203 is fixedly connected to the upper surface of the evaporation box 1. By setting a sealing detection unit 22, the sealing detection unit 22 can be used to check the sealing condition of the connection position between the evaporation box 1 and the exhaust pipe 2203, thereby effectively avoiding the problem of a large amount of air entering the interior of the evaporation box 1 due to sealing problems, thereby causing the internal air pressure of the evaporation box 1 to increase.

[0050] The specific implementation of this embodiment is as follows: when there is a sealing problem at the connection between the evaporation box 1 and the exhaust pipe 2203, because the air pressure inside the evaporation box 1 is lower than that outside after exhaust, the outside air will enter the inside of the square box 2201 through the air intake pipe 2202 fixedly connected to the upper surface of the square box 2201, and then enter the evaporation box 1 through the gap, and the gas will drive the second rotating plate 2212 to rotate when entering the air intake pipe 2202, thereby driving the second transmission rope 2206 fixed on the outer surface of the long axis 2204 to contract, pulling the second transmission rope 2206 to rotate. 2206 and the flip plate 2208. When the flip plate 2208 is subjected to a downward pulling force, it will rotate around the second rotating shaft 2210 as the center, so that the lifting plate 2136 can be pushed to move upward through the flip plate 2208, so that the hydraulic rod 2135 and the limit block 2137 fixed on the inner wall of the lifting plate 2136 move upward, contacting the restrictions on the gear 2130, the rotating plate 2133 and the spiral cylinder 2128, so that the spiral shaft 2127 enters the interior of the spiral cylinder 2128 in advance, and the first round ball 2124 falls onto the impact block 2105, thereby making a sound.

[0051] Example 3: Please refer to Figure 11-13 The present invention provides a technical solution: a hydrogen compression device with heat recovery function for salt cavern hydrogen storage. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The emergency pressure relief mechanism 3 can be used to urgently release the air pressure of the evaporator 1.

[0052] As a further limitation of the emergency pressure relief mechanism 3 of the present invention, the emergency pressure relief mechanism 3 includes an emergency pipe 301, the bottom end of the emergency pipe 301 is fixedly connected to the upper surface of the rectangular box 2103, the upper surface of the first reaction box 2123 is fixedly connected with a rectangular plate 303, the upper surface of the rectangular plate 303 is provided with a groove 310, and a second circular ball 302 is arranged inside the groove 310, and a connecting port 309 is provided on the back of the rectangular box 2103 and the front of the evaporation box 1, the inner wall of the second rectangular box 2103 is rotatably connected with a transmission shaft 308, and the outer surface of the transmission shaft 308 is fixedly connected with a turbine plate group 307, and the inner wall of the rectangular box 2103 is fixedly connected with two third reset springs 305, and the two third reset springs 305 are fixedly connected with an L-shaped plate 306 at one end close to the evaporation box 1, and the upper surface of the L-shaped plate 306 is provided with a first Exhaust port 313, a second exhaust port 304 is provided on the upper surface of the rectangular box 2103, the emergency pipe 301 is connected to the inside of the rectangular box 2103 through the second exhaust port 304, the right side of the rectangular box 2103 is fixedly connected with a bleed pipe 312, the outer surface of the bleed pipe 312 is fixedly connected with a timing solenoid valve 311, and the end of the transmission shaft 308 close to the generator set 2118 is fixedly connected to the input end of the generator set 2118. By setting up an emergency pressure relief mechanism 3, the emergency pressure relief mechanism 3 can be used to check the pressure relief condition of the device, thereby avoiding the problem of excessive pressure inside the evaporator box 1 and the rectangular box 2103 due to the inability of the pressure relief device to operate. By setting up an air extraction detection unit 21, a sealing detection unit 22 and an emergency pressure relief mechanism 3, the problem of the need to conduct regular inspections of the device during use can be effectively avoided.

[0053] The specific implementation of this embodiment is as follows: when the air pressure inside the rectangular box 2103 is too high and the timing solenoid valve 311 cannot work normally, the air pressure will squeeze the L-shaped plate 306 to move toward the third reset spring 305 until the first exhaust port 313 opened on the upper surface of the L-shaped plate 306 coincides with the second exhaust port 304, and the air pressure inside the rectangular box 2103 is discharged from the emergency pipe 301, so that the second circular ball 302 of the gas roundworm rotates downward until it rolls onto the impact block 2105 and makes a sound, thereby ensuring that there is no staff on site in time and avoiding the explosion problem of the device due to excessive internal air pressure.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen compression device with heat recovery function for salt cavern hydrogen storage, comprising an evaporator (1), characterized in that: A detection mechanism (2) is provided above the evaporation box (1), and an emergency pressure relief mechanism (3) is provided above the evaporation box (1); The detection mechanism (2) comprises an air extraction detection unit (21), wherein the air extraction detection unit (21) is arranged above the evaporation box (1), and the air extraction detection unit (21) can detect whether the device performs intermittent vacuum extraction; The sealing detection unit (22) is arranged above the evaporation box (1), and the sealing detection unit (22) can check the sealing condition of the connection between the evaporation box (1) and the vacuum pipe; The emergency pressure relief mechanism (3) can be used to discharge the air pressure in the evaporator box (1) in an emergency.

2. A hydrogen compression device with heat recovery function for salt cavern hydrogen storage according to claim 1, characterized in that: The gas extraction detection unit (21) comprises a rectangular box (2103), the back side of the rectangular box (2103) is fixedly connected to the front side of the evaporation box (1), the upper surface of the evaporation box (1) is fixedly connected to a vacuum pump (2102), the output end of the vacuum pump (2102) is fixedly connected to an exhaust pipe (2101), the left side of the rectangular box (2103) is respectively fixedly connected to a first reaction box (2123) and a second reaction box (2119), the front and back sides of the second reaction box (2119) are both provided with vents (2143), one end of the exhaust pipe (2101) is fixedly connected to the front side of the second reaction box (2119), and the exhaust pipe (2101) is connected to the exhaust pipe (2101) through one of the vents ( The first reaction box (2143) is connected to the interior of the second reaction box (2119), the inner wall of the second reaction box (2119) is rotatably connected to a spiral cylinder (2128), the interior of the spiral cylinder (2128) is slidably connected to a spiral shaft (2127), the top of the spiral shaft (2127) is fixedly connected to a circular plate (2126), the upper surface of the circular plate (2126) is fixedly connected to an inclined plate (2125), the outer side of the inclined plate (2125) is provided with a first circular ball (2124), the outer surface of the first circular ball (2124) is in contact with the outer surface of the inclined plate (2125) and the inner wall of the first reaction box (2123), respectively, the spiral shaft (2127), the circular plate (2126), the inclined plate (2125) and the inner wall of the first reaction box (2123) are connected to the spiral cylinder (2128), the spiral shaft (2127), the circular plate (2126), the inclined plate (2125) are fixedly connected to the top of the spiral shaft (2127), the circular plate (2126), the inclined plate (2125) are fixedly connected to the upper surface of ... The first reaction box (2119) and the first round ball (2124) are both slidably connected to the inside of the first reaction box (2123); the outer surface of the spiral cylinder (2128) is rotatably connected to three groups of first rotating plates (2129) and gears (2130); each group of the first rotating plates (2129) has two; the front of the second reaction box (2119) is fixedly connected to the third reaction box (2120); the inner wall of the second reaction box (2119) is rotatably connected to the first rotating shaft (2134); the outer surface of the first rotating shaft (2134) is fixedly connected to the rotating plate (2133); the outer surface of the rotating plate (2133) contacts the outer surface of the gear (2130); the rotating plate (2133) ) is fixedly connected to a first return spring (2132) on its left side, a fixed plate (2144) is fixedly connected to the front side of the second reaction box (2119), the right side of the fixed plate (2144) is fixedly connected to the left side of the first return spring (2132), a lifting plate (2136) is arranged inside the third reaction box (2120), the back side of the lifting plate (2136) is in contact with the front side of the second reaction box (2119), a hydraulic rod (2135) is fixedly connected to the inner wall of the lifting plate (2136), the telescopic end of the hydraulic rod (2135) is fixedly connected to a limiting block (2137), the left side of the limiting block (2137) is in contact with the right side of the rotating plate (2133),The bottom surface of the rectangular box (2103) is fixedly connected to a support block (2104), and an impact block (2105) is arranged above the support block (2104). The bottom surface of the impact block (2105) is in contact with the upper surface of the support block (2104). The outer surface of the spiral cylinder (2128) is fixedly connected to a first transmission rope (2131). The inner wall of the second reaction box (2119) and the inner wall of the third reaction box (2120) are fixedly connected to a circular cylinder (2139). The inner wall of the circular cylinder (2139) is fixedly connected to a second return spring (2141). The end of the second return spring (2141) close to the spiral cylinder (2128) is fixedly connected to a moving plate (2142), and the back of the moving plate (2142) is fixedly connected to the end of the first transmission rope (2131) close to the second return spring (2141).

3. A hydrogen compression device with heat recovery function for salt cavern hydrogen storage according to claim 2, characterized in that: A support base (2108) is arranged at the rear of the evaporation box (1), and a reciprocating hydrogen compressor body (2110) is fixedly connected to the upper surface of the support base (2108). A fixing frame (2106) is fixedly connected to the upper surface of the evaporation box (1), and an inner wall of the fixing frame (2106) is fixedly connected to the outer surface of the reciprocating hydrogen compressor body (2110).

4. A hydrogen compression device with heat recovery function for salt cavern hydrogen storage according to claim 3, characterized in that: A condenser (2111) is fixedly connected to the inner wall of the evaporator box (1), the top end of the condenser tube (2111) is fixedly connected to the output end of the reciprocating hydrogen compressor body (2110), and the left end of the condenser tube (2111) passes through the evaporator box (1) and extends to the left side of the evaporator box (1).

5. The hydrogen compression device with heat recovery function for salt cavern hydrogen storage according to claim 1, characterized in that: The upper surface of the evaporation box (1) is fixedly connected to a water injection pipe (2107), and the outer surface of the water injection pipe (2107) is threadedly connected to a threaded cover (2109).

6. A hydrogen compression device with heat recovery function for salt cavern hydrogen storage according to claim 2, characterized in that: A storage box (2115) is fixedly connected to the front of the support block (2104), a drawer (2114) is slidably connected to the interior of the storage box (2115), a handle (2113) is fixedly connected to the left side of the drawer (2114), two groups of support legs (2117) are fixedly connected to the upper surface of the storage box (2115), each group of support legs (2117) has two support legs, the top ends of the two groups of support legs (2117) are fixedly connected to a generator set (2118), and a storage battery (2116) and an inverter (2112) are fixedly connected to the upper surface of the storage box (2115).

7. A hydrogen compression device with heat recovery function for salt cavern hydrogen storage according to claim 2, characterized in that: The upper surface of the support block (2104) is provided with a circular slot (2122), the interior of the circular slot (2122) is clamped with a circular block (2121), and the top end of the circular block (2121) is fixedly connected to the bottom surface of the striking block (2105).

8. The hydrogen compression device with heat recovery function for salt cavern hydrogen storage according to claim 2, characterized in that: The front of the second reaction box (2119) is provided with a T-shaped slide groove (2138), the interior of the T-shaped slide groove (2138) is slidably connected to a T-shaped slider (2140), and the front of the T-shaped slider (2140) is fixedly connected to the back of the lifting plate (2136).

9. A hydrogen compression device with heat recovery function for salt cavern hydrogen storage according to claim 2, characterized in that: The sealing detection unit (22) comprises a square box (2201), the bottom surface of the square box (2201) is fixedly connected to the upper surface of the evaporation box (1), the upper surface of the square box (2201) is fixedly connected to an air intake pipe (2202), the inner wall of the square box (2201) is rotatably connected to a long axis (2204), the outer surface of the long axis (2204) is fixedly connected to three groups of second rotating plates (2212), and the number of second rotating plates (2212) in each group is two, the left end of the long axis (2204) is fixedly connected to a baffle (2205), the outer surface of the long axis (2204) is fixedly connected to a second transmission rope (2206), the inner wall of the evaporation box (1) is rotatably connected to a first rotating shaft (2207), the inner wall of the second reaction box (2119) is rotatably connected to a second rotating shaft (2209), and the second transmission rope (2206) is rotatably connected to the inner wall of the second reaction box (2119). The outer surfaces are in contact with the outer surfaces of the first rotating shaft (2207) and the outer surfaces of the second rotating shaft (2209) respectively; the inner wall of the third reaction box (2120) is rotatably connected to the second rotating shaft (2210); the outer surface of the second rotating shaft (2210) is fixedly connected to the flip plate (2208); the inner wall of the flip plate (2208) is rotatably connected to the roller (2211); the outer surface of the roller (2211) is in contact with the bottom surface of the lifting plate (2136); the top end of the second transmission rope (2206) is fixedly connected to the bottom surface of the flip plate (2208); the input end of the vacuum pump (2102) is fixedly connected to an exhaust pipe (2203); the bottom end of the exhaust pipe (2203) passes through the square box (2201) and extends to the interior of the square box (2201); the bottom end of the exhaust pipe (2203) is fixedly connected to the upper surface of the evaporation box (1).

10. A hydrogen compression device with heat recovery function for salt cavern hydrogen storage according to claim 6, characterized in that: The emergency pressure relief mechanism (3) comprises an emergency pipe (301), the bottom end of which is fixedly connected to the upper surface of the rectangular box (2103); the upper surface of the first reaction box (2123) is fixedly connected to a rectangular plate (303); the upper surface of the rectangular plate (303) is provided with a groove (310); a second round ball (302) is arranged inside the groove (310); a connecting port (309) is provided on the back of the rectangular box (2103) and the front of the evaporation box (1); the inner wall of the second rectangular box (2103) is rotatably connected to a transmission shaft (308); the outer surface of the transmission shaft (308) is fixedly connected to a turbine blade group (307); the inner wall of the rectangular box (2103) is fixedly connected to two A third return spring (305), the two third return springs (305) are fixedly connected to an L-shaped plate (306) at one end close to the evaporation box (1), the upper surface of the L-shaped plate (306) is provided with a first exhaust port (313), the upper surface of the rectangular box (2103) is provided with a second exhaust port (304), the emergency pipe (301) is connected to the inside of the rectangular box (2103) through the second exhaust port (304), the right side of the rectangular box (2103) is fixedly connected to an air release pipe (312), the outer surface of the air release pipe (312) is fixedly connected to a timing solenoid valve (311), and the end of the transmission shaft (308) close to the generator set (2118) is fixedly connected to the input end of the generator set (2118).

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