Low-temperature high-pressure reciprocating plunger pump device for station hydrogenation hydrogen storage integrated facility

Abstract

This utility model discloses a low-temperature, high-pressure reciprocating plunger pump device for integrated hydrogen refueling and storage facilities at stations, relating to the technical field of plunger pump devices. The utility model includes a base frame, with a mounting plate fixedly connected to the top of the base frame. A plunger pump assembly is fixedly connected to the top of the mounting plate, and a rapid heat conduction component is fixedly connected to the rear end of the top of the mounting plate. This utility model achieves rapid heat dissipation by ensuring close contact between the heat-conducting coil and the heat dissipation fins on the top of the plunger pump body. The heat generated by the plunger pump operation is quickly transferred to the heat-conducting coil through close contact between the heat-conducting coil and the heat dissipation fins on the top of the plunger pump body. The circulating pump drives the coolant to circulate in a loop consisting of the heat-conducting coil, inlet pipe, connecting pipe, storage tank, and outlet pipe, promptly removing heat and achieving efficient heat dissipation. This effectively avoids problems such as seal failure and component wear caused by excessively high pump body temperatures, ensuring stable operation of the plunger pump under low-temperature, high-pressure conditions and extending the equipment's service life.

Description

Technical Field

[0001] This utility model belongs to the technical field of plunger pump devices, and in particular relates to a low-temperature, high-pressure reciprocating plunger pump device for integrated hydrogen refueling and storage facilities at stations. Background Technology

[0002] With the global energy structure accelerating its transition towards cleaner energy, hydrogen energy, with its advantages of zero pollution and high energy density, has become an important development direction for the future energy system. Integrated hydrogen refueling and storage facilities at stations, as key infrastructure for hydrogen energy applications, undertake core functions such as hydrogen storage, pressurization, and refueling. Among them, the cryogenic high-pressure reciprocating plunger pump is the core equipment for achieving efficient pressurized hydrogen delivery, and its performance directly affects the facility's operational efficiency and safety.

[0003] During the high-pressure reciprocating motion of a plunger pump, the heat generated by friction between components and the heat generated by hydraulic or electrical energy conversion is difficult to dissipate quickly, causing the pump body temperature to rise continuously. Excessive temperature not only accelerates the aging and deformation of sealing materials, reducing sealing performance and posing a risk of hydrogen leakage, but also affects the mechanical properties of key components such as the plunger, exacerbating wear and shortening the service life of the equipment. On the other hand, when operating in low-temperature environments, traditional heat dissipation methods are difficult to coordinate effectively with the low-temperature environment, resulting in low heat dissipation efficiency and an inability to balance the heat generated by the pump body in a timely manner. This leads to uneven temperature distribution inside the pump body, affecting the stable operation and working efficiency of the pump.

[0004] To address these issues, we have developed a cryogenic, high-pressure reciprocating plunger pump for integrated hydrogen refueling and storage facilities at stations. Utility Model Content

[0005] The purpose of this invention is to provide a low-temperature, high-pressure reciprocating plunger pump device for integrated hydrogen refueling and storage facilities. By combining the plunger pump assembly and the fast heat conduction assembly, it solves the problem in the prior art that the high temperature generated by the plunger pump during high-pressure reciprocating motion will accelerate the aging and deformation of the sealing material, reduce the sealing performance, cause the risk of hydrogen leakage, and shorten the service life of the equipment.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a low-temperature, high-pressure reciprocating plunger pump device for an integrated hydrogen refueling and storage facility at a station. It includes a base frame, with a mounting plate fixedly connected to the top of the base frame. A plunger pump assembly is fixedly connected to the top of the mounting plate. A rapid heat conduction assembly is fixedly connected to the rear end of the top of the mounting plate. The rapid heat conduction assembly includes a mounting cover positioned on top of the plunger pump assembly. A heat conduction coil is fixedly connected to the inner cavity of the mounting cover. An inlet pipe is connected to the top of the heat conduction coil, and an outlet pipe is connected to the other side of the heat conduction coil. A circulation pump is connected to one side of the inlet pipe, and a connecting pipe is connected to one side of the circulation pump. A storage tank is connected to one side of the connecting pipe, and the other side of the outlet pipe is connected to the storage tank. The base frame serves as the fundamental support structure for the entire device, effectively reducing the transmission of vibrations generated during device operation to the ground. To enhance the stability of the device placement, the heat-conducting coil is arranged in a spiral winding manner, maximizing the contact area with the heat dissipation fins while ensuring the flow rate of the coolant. One end of the inlet pipe is tightly connected to the top interface of the heat-conducting coil, and the other end is connected to the outlet of the circulating pump. One end of the outlet pipe is connected to the heat-conducting coil, and the other end is connected to the inlet of the storage tank. The heat generated by the operation of the plunger pump assembly can be quickly transferred to the heat-conducting coil through the heat dissipation fins. The circulating pump drives the coolant to flow rapidly in the heat-conducting coil, carrying away the heat and transferring it to the storage tank. The reasonable layout and material selection of the entire coolant circulation system ensures that the plunger pump assembly can operate continuously and stably under low temperature and high pressure environments, effectively avoiding equipment failure and performance degradation caused by excessive temperature, and improving the operational reliability and working efficiency of the station-use hydrogen refueling and storage integrated facility.

[0008] The present invention is further configured such that the plunger pump assembly includes a plunger pump body, the bottom of which is fixedly connected to a mounting plate, and a heat dissipation fin is fixedly connected to one side of the top of the plunger pump body. The top of the heat dissipation fin contacts the heat-conducting coil. A connecting shaft is provided on one side of the surface of the plunger pump body. The heat dissipation fin is made of high thermal conductivity aluminum alloy and has good contact with the heat-conducting coil, greatly increasing the heat dissipation area. This allows the heat generated by the operation of the plunger pump body to be quickly transferred to the heat-conducting coil, effectively reducing the pump body temperature and avoiding problems such as seal failure and component wear caused by overheating. The connecting shaft facilitates connection with the drive mechanism to achieve power transmission, ensuring that the plunger inside the plunger pump body can reciprocate normally to complete the pressurization and transportation of hydrogen.

[0009] The present invention is further configured such that a fixing plate is fixedly connected to one side of the top of the mounting plate, and a motor mounting bracket is fixedly connected to the top of the fixing plate. The fixing plate and the motor mounting bracket provide a stable mounting position for the drive motor and other related components.

[0010] The present invention is further configured such that mounting grooves are provided on both sides of the surface of the storage box, a cooling fan is fixedly connected to the inner cavity of the mounting groove, and a protective grille is fixedly connected to the outer side of the mounting groove. The cooling fan accelerates the dissipation of heat from the coolant, further reduces the coolant temperature, and improves the cooling efficiency of the cooling system. Combined with the low external temperature environment, it can improve the cooling efficiency of the coolant.

[0011] The present invention is further provided that a cover is threadedly connected to one side of the top of the storage tank, and the surface of the cover is provided with anti-slip texture. When the operator opens the cover, he can operate inside the storage tank to facilitate the addition or replacement of coolant.

[0012] The present invention is further configured such that connecting blocks are fixedly connected to the four corners of the bottom of the mounting cover, and the bottom of the connecting blocks are fixedly connected to the heat dissipation fins. The connecting blocks fix the mounting cover to the heat dissipation fins, so that the mounting cover stably covers the top of the plunger pump assembly, ensuring the stability of the mounting cover and preventing it from shaking or shifting during the operation of the device, and ensuring that the internal heat conduction coil and the heat dissipation fins maintain good contact.

[0013] The present invention is further configured such that protective frames are fixedly connected to both sides of the top of the base frame, and a crossbar is fixedly connected to one side of the protective frame. The protective frame and the crossbar constitute a protective structure, which can effectively prevent external objects from colliding with the plunger pump device and protect the precision components inside the device from damage.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model achieves rapid heat transfer by having the heat-conducting coil in close contact with the heat dissipation fins on the top of the plunger pump body. The heat generated by the plunger pump is then quickly transferred to the heat-conducting coil. The circulating pump drives the coolant to circulate in the loop consisting of the heat-conducting coil, inlet pipe, connecting pipe, storage tank, and outlet pipe, which promptly removes heat and achieves efficient heat dissipation. This effectively avoids problems such as seal failure and component wear caused by excessively high pump body temperature, ensuring stable operation of the plunger pump under low temperature and high pressure conditions and extending the service life of the equipment.

[0016] 2. This utility model adopts a low-temperature coolant circulation method. This heat dissipation method utilizes the characteristics of the low-temperature environment. The low-temperature coolant can more efficiently remove the heat generated by the operation of the plunger pump. During the circulation process, the coolant can fully absorb the heat of the pump body and sealing components, keeping their temperature within a reasonable range. Moreover, the low temperature of the coolant can cooperate with the low temperature of the external environment to further enhance the heat dissipation effect and ensure the stable operation of the plunger pump under complex working conditions of low temperature and high pressure. It not only achieves the purpose of heat dissipation, but also makes full use of the advantages of the low-temperature environment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 A 3D view of a low-temperature, high-pressure reciprocating plunger pump unit used in a hydrogen refueling and storage integrated facility at a station.

[0019] Figure 2 A side perspective perspective view of a cryogenic high-pressure reciprocating plunger pump unit used in a hydrogen refueling and storage integrated facility at a station.

[0020] Figure 3 A rear-view perspective view of a cryogenic high-pressure reciprocating plunger pump unit used in a station-based integrated hydrogen refueling and storage facility.

[0021] Figure 4 A bottom-view perspective view of the mounting cover of a low-temperature, high-pressure reciprocating plunger pump unit used in a station-based integrated hydrogen refueling and storage facility.

[0022] Figure 5 A perspective view of the storage tank in a cryogenic high-pressure reciprocating plunger pump unit used in a station-based integrated hydrogen refueling and storage facility.

[0023] In the attached diagram: 1. Base frame; 2. Mounting plate; 3. Plunger pump assembly; 31. Plunger pump body; 32. Heat dissipation fins; 33. Connecting shaft; 4. Rapid heat conduction assembly; 41. Mounting cover; 42. Heat conduction coil; 43. Inlet pipe; 44. Outlet pipe; 45. Circulation pump; 46. Connecting pipe; 47. Storage tank; 5. Fixing plate; 6. Motor mounting base; 7. Mounting slot; 8. Cooling fan; 9. Protective grille; 10. Cover; 11. Connecting block; 12. Protective frame; 13. Crossbar. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5This utility model relates to a low-temperature, high-pressure reciprocating plunger pump device for an integrated hydrogen refueling and storage facility at a station. It includes a base frame 1, a mounting plate 2 fixedly connected to the top of the base frame 1, a plunger pump assembly 3 fixedly connected to the top of the mounting plate 2, and a rapid heat conduction assembly 4 fixedly connected to the rear end of the top of the mounting plate 2. The rapid heat conduction assembly 4 includes a mounting cover 41, which is positioned on top of the plunger pump assembly 3. A heat conduction coil 42 is fixedly connected to the inner cavity of the mounting cover 41. An inlet pipe 43 is connected to the top of the heat conduction coil 42, and an outlet pipe 44 is connected to the other side of the heat conduction coil 42. A circulation pump 45 is connected to one side of the inlet pipe 43, and a connecting pipe 46 is connected to one side of the circulation pump 45. A storage tank 47 is connected to one side of the connecting pipe 46, and the storage tank 47 is connected to the other side of the outlet pipe 44.

[0027] Specifically: The base frame 1 serves as the basic support structure for the entire device, effectively reducing the transmission of vibrations generated during device operation to the ground and enhancing the stability of the device placement. The heat-conducting coil 42 is arranged in a spiral winding manner, maximizing the contact area with the heat dissipation fins 32 while ensuring the flow rate of the coolant. One end of the inlet pipe 43 is tightly connected to the top interface of the heat-conducting coil 42, and the other end is connected to the outlet of the circulating pump 45. One end of the outlet pipe 44 is connected to the heat-conducting coil 42, and the other end is connected to the inlet of the storage tank 47. The heat generated by the operation of the plunger pump assembly 3 can be quickly transferred to the heat-conducting coil 42 through the heat dissipation fins 32. The circulating pump 45 drives the coolant to flow rapidly in the heat-conducting coil 42, carrying away the heat and transferring it to the storage tank 47. The reasonable layout and material selection of the entire coolant circulation system ensures that the plunger pump assembly 3 can operate continuously and stably under low temperature and high pressure environments, effectively avoiding equipment failure and performance degradation caused by excessive temperature, and improving the operational reliability and working efficiency of the station-use hydrogen refueling and storage integrated facility.

[0028] Example 2

[0029] Please see Figure 1-5Based on Embodiment 1, the plunger pump assembly 3 includes a plunger pump body 31, the bottom of which is fixedly connected to the mounting plate 2. A heat dissipation fin 32 is fixedly connected to one side of the top of the plunger pump body 31, and the top of the heat dissipation fin 32 contacts the heat conduction coil 42. A connecting shaft 33 is provided on one side of the surface of the plunger pump body 31. A fixing plate 5 is fixedly connected to one side of the top of the mounting plate 2. A motor mounting seat 6 is fixedly connected to the top of the fixing plate 5. Mounting grooves 7 are provided on both sides of the surface of the storage tank 47. A cooling fan 8 is fixedly connected to the inner cavity of the mounting groove 7. A protective grille 9 is fixedly connected to the outer side of the mounting groove 7. A cover 10 is threadedly connected to one side of the top of the storage tank 47. The surface of the cover 10 is provided with anti-slip texture. Connecting blocks 11 are fixedly connected to the four corners of the bottom of the mounting cover 41. The bottom of the connecting blocks 11 is fixedly connected to the heat dissipation fin 32. Protective frames 12 are fixedly connected to both sides of the top of the base frame 1. A crossbar 13 is fixedly connected to one side of the protective frame 12.

[0030] Specifically: the heat dissipation fins 32 are made of high thermal conductivity aluminum alloy and have good contact with the heat-conducting coil 42, significantly increasing the heat dissipation area. This allows for rapid transfer of heat generated by the plunger pump body 31 to the heat-conducting coil 42, effectively reducing the pump body temperature and preventing problems such as seal failure and component wear caused by overheating. The connecting shaft 33 facilitates connection with the drive mechanism to achieve power transmission, ensuring the normal reciprocating motion of the plunger inside the plunger pump body 31 to complete the pressurization and transportation of hydrogen. The fixing plate 5 and the motor mounting base 6 provide a stable mounting position for the drive motor and other related components. The cooling fan 8 accelerates the dissipation of heat from the coolant, further reducing the coolant temperature. To improve the cooling efficiency of the heat dissipation system, the coolant's cooling efficiency can be improved in conjunction with the low external temperature environment. The operator can open the cover 10 to operate inside the storage tank 47 to easily add or replace the coolant. The connecting block 11 fixes the mounting cover 41 to the heat dissipation fins 32, so that the mounting cover 41 is firmly covered on the top of the plunger pump assembly 3, ensuring the stability of the mounting cover 41 and preventing it from shaking or shifting during the operation of the device. This ensures that the internal heat conduction coil 42 and the heat dissipation fins 32 maintain good contact. The protective frame 12 and the crossbar 13 form a protective structure, which can effectively prevent external objects from colliding with the plunger pump device and protect the precision components inside the device from damage.

[0031] The working principle of this utility model is as follows: During the operation of the plunger pump assembly 3, a large amount of heat is generated due to component friction and energy conversion. The heat dissipation fins 32, with their large surface area and good thermal conductivity, quickly absorb the heat generated by the plunger pump body 31. Since the top of the heat dissipation fins 32 is in close contact with the heat conduction coil 42, the heat can be efficiently conducted to the heat conduction coil 42. The heat conduction coil 42 is arranged in a spiral winding manner inside the mounting cover 41, maximizing the contact area with the heat dissipation fins 32. After the circulation pump 45 is started, it drives the coolant to circulate in the closed loop composed of the inlet pipe 43, the heat conduction coil 42, the outlet pipe 44, and the storage tank 47. When the coolant flows through the heat conduction coil 42, it absorbs the heat on the heat conduction coil 42, and the temperature rises. The heated coolant flows back to the storage tank 47 through the outlet pipe 44.

[0032] After the cooling fan 8 is started, it accelerates the airflow, removes the heat of the coolant in the storage tank 47, and lowers the temperature of the coolant. The cooled coolant, under the action of the circulating pump 45, enters the heat-conducting coil 42 again through the connecting pipe 46 and the liquid inlet pipe 43 to continue to absorb heat. This cycle repeats continuously, carrying away the heat generated by the plunger pump assembly 3, thereby achieving continuous heat dissipation of the plunger pump device.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A cryogenic high-pressure reciprocating plunger pump device for an integrated hydrogen refueling and storage facility, comprising a base frame (1), characterized in that: The top of the base frame (1) is fixedly connected to a mounting plate (2), the top of the mounting plate (2) is fixedly connected to a plunger pump assembly (3), and the rear end of the top of the mounting plate (2) is fixedly connected to a fast heat conduction assembly (4). The rapid heat conduction assembly (4) includes a mounting cover (41) which is disposed on the top of the plunger pump assembly (3). A heat conduction coil (42) is fixedly connected to the inner cavity of the mounting cover (41). An inlet pipe (43) is connected to the top of the heat conduction coil (42). An outlet pipe (44) is connected to the other side of the heat conduction coil (42). A circulation pump (45) is connected to one side of the inlet pipe (43). A connecting pipe (46) is connected to one side of the circulation pump (45). A storage tank (47) is connected to one side of the connecting pipe (46). The other side of the outlet pipe (44) is connected to the storage tank (47).

2. The cryogenic high-pressure reciprocating plunger pump device for integrated hydrogen refueling and storage facilities at stations according to claim 1, characterized in that: The plunger pump assembly (3) includes a plunger pump body (31), the bottom of which is fixedly connected to the mounting plate (2), a heat dissipation fin (32) is fixedly connected to one side of the top of the plunger pump body (31), the top of which is in contact with the heat conduction coil (42), and a connecting shaft (33) is provided on one side of the surface of the plunger pump body (31).

3. The cryogenic high-pressure reciprocating plunger pump device for integrated hydrogen refueling and storage facilities at stations according to claim 1, characterized in that: A fixing plate (5) is fixedly connected to one side of the top of the mounting plate (2), and a motor mounting bracket (6) is fixedly connected to the top of the fixing plate (5).

4. The cryogenic high-pressure reciprocating plunger pump device for integrated hydrogen refueling and storage facilities at stations according to claim 1, characterized in that: The storage box (47) has mounting slots (7) on both sides of its surface. A cooling fan (8) is fixedly connected to the inner cavity of the mounting slot (7), and a protective grille (9) is fixedly connected to the outer side of the mounting slot (7).

5. The cryogenic high-pressure reciprocating plunger pump device for integrated hydrogen refueling and storage facilities at stations according to claim 1, characterized in that: The storage box (47) has a cover (10) threaded onto one side of its top, and the surface of the cover (10) is provided with anti-slip texture.

6. The cryogenic high-pressure reciprocating plunger pump device for integrated hydrogen refueling and storage facilities at stations according to claim 1, characterized in that: The four corners of the bottom of the mounting cover (41) are fixedly connected to connecting blocks (11), and the bottom of the connecting blocks (11) is fixedly connected to the heat dissipation fins (32).

7. The cryogenic high-pressure reciprocating plunger pump device for integrated hydrogen refueling and storage facilities at stations according to claim 1, characterized in that: Protective frames (12) are fixedly connected to both sides of the top of the base frame (1), and a crossbar (13) is fixedly connected to one side of the protective frame (12).

Images