Low-temperature booster pump plunger type cylinder liquid inlet dredging and guiding mechanism capable of achieving sleeving pressure relief protection
By designing a clearing and guiding mechanism and a pressure relief valve at the inlet of the plunger cylinder of the cryogenic booster pump, the problems of inlet blockage and lack of pressure relief protection in cryogenic environments are solved, achieving inlet clearing and pressure protection, and improving the stability and safety of the equipment.
Patent Information
- Application Number
- CN202422859128.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The inlet of the plunger cylinder of a cryogenic booster pump is prone to blockage in low-temperature environments, affecting normal operation and lacking pressure relief protection, leading to structural damage and safety hazards.
The design incorporates a liquid inlet unblocking and guiding mechanism for the plunger cylinder of a cryogenic booster pump, which can be fitted with a pressure relief valve. This mechanism uses a motor to drive the spiral blades to rotate and guide the flow, thereby achieving unblocking and pressure relief protection of the liquid inlet.
It improves the working stability of the cryogenic booster pump plunger cylinder, prevents blockage, and provides pressure relief protection in case of abnormal pressure, thus avoiding structural damage and safety hazards.
Smart Images

Figure CN223536525U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of booster pump technology, and in particular to a cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism that can be fitted with pressure relief protection. Background Technology
[0002] A cryogenic booster pump is a device specifically designed for pressurizing and conveying media under cryogenic conditions. The plunger cylinder is an important component of the cryogenic booster pump, consisting of two parts: the plunger and the cylinder body. When the hydraulic system is working, high-pressure liquid enters the plunger cylinder from the inlet, driving the plunger to move and converting it into mechanical energy.
[0003] Currently, in the operation of existing cryogenic booster pump plunger cylinders, the low ambient temperature affects the flow rate at the plunger cylinder inlet, which can even cause blockage. This affects the normal operation of the plunger cylinder. In addition, the plunger cylinder lacks pressure relief protection, which can easily cause damage to various structures if jamming or blockage occurs during use, and also poses certain safety hazards.
[0004] Therefore, to address the issues of low-temperature booster pump plunger cylinders experiencing reduced or even blocked flow at the inlet due to low ambient temperatures, which affects normal operation and lacks pressure relief protection, a pressure relief protection mechanism for the low-temperature booster pump plunger cylinder inlet can be designed. By installing this mechanism at the inlet, the inner side of the inlet can be automatically cleared, and a pressure relief protection valve can be added to the mechanism to achieve pressure relief protection for the plunger cylinder. Utility Model Content
[0005] To overcome the problem that during the use of cryogenic booster pump plunger cylinders, the low ambient temperature affects or even blocks the flow rate at the plunger cylinder inlet, thus affecting the normal operation of the plunger cylinder, and the lack of pressure relief protection.
[0006] The technical solution of this utility model is as follows: a cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pressure relief protection, comprising a housing, a motor on the right side of the housing, an inlet connector on the left end of the housing, a spiral blade on the inner side of the housing, a valve body interface on the upper end of the housing, a pressure relief valve on the upper end of the valve body interface, a fixed seat on the left side of the valve body interface, a first groove on the upper end of the fixed seat, a first bidirectional lead screw on the inner side of the first groove, a first clamping plate on the outer side of the pressure relief valve, a second groove on the left side of the fixed seat, a second bidirectional lead screw on the inner side of the second groove, and a second clamping plate on the side of the inlet connector.
[0007] Preferably, the housing is connected to the plunger cylinder inlet via the inlet connector, and then the pressure relief valve is assembled onto the valve body interface. The pressure relief valve is clamped and fixed by a clamping plate, and the piston cylinder inlet is clamped and fixed by a clamping plate, which improves the stability of the assembly of each structure. After assembly, the spiral blades are driven to rotate by the motor, so that the spiral blades rotate and guide the flow in the inlet, thereby clearing and guiding the flow in the plunger cylinder inlet. At the same time, the pressure relief valve provides pressure relief protection in case of abnormal pressure, which improves the working stability of the cryogenic booster pump plunger cylinder.
[0008] Preferably, the motor and the right side of the housing are fixedly connected, the output end of the motor extends to the inside of the housing and is fixedly connected to the right end of the spiral blade, the right end of the spiral blade extends to the outside of the liquid inlet connector, and the spiral blade and the inside of the liquid inlet connector are mutually adapted.
[0009] Preferably, the valve body interface and the inner side of the housing are connected to each other, the lower end of the pressure relief valve and the valve body interface are connected by a joint thread, and the fixed seat is fixedly connected to the outer side of the housing and the valve body interface.
[0010] Preferably, the front and rear ends of the double-acting lead screw are rotatably connected to the inner side of the slide groove, and the front and rear ends of the double-acting lead screw are fixedly installed with knobs on the outer side of the fixed seat.
[0011] Preferably, the clamping plate is arranged symmetrically front and back, and a drive block is fixedly installed on the left end of the clamping plate. The lower end of the drive block is slidably connected to the inner side of the slide groove. The drive block is threadedly connected to the bidirectional lead screw. An anti-slip pad is fixedly installed on the surface of the clamping plate.
[0012] Preferably, the front and rear ends of the second bidirectional lead screw are rotatably connected to the inner side of the second slide groove, and the front and rear ends of the second bidirectional lead screw are fixedly installed with knobs on the outer side of the fixed seat.
[0013] Preferably, the clamping plate two is arranged symmetrically front and back, the upper end of the clamping plate two is fixedly installed with the driving block two, the right end of the driving block two is slidably connected to the inner side of the slide groove two, the driving block two is threadedly connected to the bidirectional lead screw two, and the surface of the clamping plate two is fixedly installed with an anti-slip pad.
[0014] The beneficial effects of this utility model are:
[0015] This cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pressure relief protection connects the housing to the plunger cylinder inlet via an inlet connector. The pressure relief valve is then assembled onto the valve body interface. By rotating knobs one and two, clamping plates one clamp and fix the pressure relief valve, while clamping plate two clamps and fixes the piston cylinder inlet, improving the stability of the assembled structure. After assembly, a motor drives the spiral blades to rotate, guiding the flow within the inlet and unblocking the plunger cylinder inlet. Simultaneously, the pressure relief valve provides pressure relief protection in case of abnormal pressure, enhancing the operational stability of the cryogenic booster pump plunger cylinder. Attached Figure Description
[0016] Figure 1 The diagram shows a three-dimensional structure of the cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pluggable pressure relief protection according to this utility model. Figure 1 ;
[0017] Figure 2 The diagram shows a three-dimensional structure of the cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pluggable pressure relief protection according to this utility model. Figure 2 ;
[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the pressure relief valve of this utility model;
[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the shell of this utility model;
[0020] Figure 5 The diagram shown is a three-dimensional cross-sectional view of the shell of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Motor; 3. Liquid inlet connector; 4. Spiral blade; 5. Valve body interface; 6. Pressure relief valve; 7. Fixing base; 8. Slide groove one; 9. Double-acting lead screw one; 91. Knob one; 10. Clamping plate one; 101. Drive block one; 11. Slide groove two; 12. Double-acting lead screw two; 121. Knob two; 13. Clamping plate two; 131. Drive block two. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-5This utility model provides an embodiment of a cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism that can be fitted with pressure relief protection. The mechanism includes a housing 1, a motor 2 on the right side of the housing 1, an inlet connector 3 on the left end of the housing 1, a spiral blade 4 on the inner side of the housing 1, a valve body interface 5 at the upper end of the housing 1, a pressure relief valve 6 at the upper end of the valve body interface 5, a fixing seat 7 on the left side of the valve body interface 5, a first groove 8 at the upper end of the fixing seat 7, a bidirectional lead screw 9 on the inner side of the first groove 8, a clamping plate 10 on the outer side of the pressure relief valve 6, a second groove 11 on the left side of the fixing seat 7, a second bidirectional lead screw 12 on the inner side of the second groove 11, and a clamping plate 13 on the side of the inlet connector 3.
[0024] Please see Figures 1-4 In this embodiment, the motor 2 is fixedly connected to the right side of the housing 1. The output end of the motor 2 extends to the inner side of the housing 1 and is fixedly connected to the right end of the spiral blade 4. The right end of the spiral blade 4 extends to the outer side of the inlet connector 3. The spiral blade 4 and the inner side of the inlet connector 3 are mutually adapted. The valve body interface 5 and the inner side of the housing 1 are interconnected. The lower end of the pressure relief valve 6 and the valve body interface 5 are connected by a connector thread. The fixed seat 7 is fixedly connected to the outer side of the housing 1 and the valve body interface 5. The motor 2 drives the spiral blade 4 to rotate, so that the spiral blade 4 rotates and guides the flow in the inlet, thereby clearing and guiding the flow in the plunger cylinder inlet. At the same time, the pressure relief valve 6 realizes pressure relief protection in case of abnormal pressure.
[0025] Please see Figures 2-5In this embodiment, the front and rear ends of the bidirectional lead screw 9 are rotatably connected to the inner side of the slide groove 8. The front and rear ends of the bidirectional lead screw 9 extend to the outer side of the fixed base 7 and are fixedly mounted with knobs 91. The clamping plates 10 are arranged symmetrically front to back. A drive block 101 is fixedly mounted on the left end of the clamping plate 10. The lower end of the drive block 101 is slidably connected to the inner side of the slide groove 8. The drive block 101 and the bidirectional lead screw 9 are threadedly connected. An anti-slip pad is fixedly mounted on the surface of the clamping plate 10. The front and rear ends of the bidirectional lead screw 12 are rotatably connected to the inner side of the slide groove 11. The front and rear ends of the bidirectional lead screw 12 extend to the outer side of the fixed base 7 and are fixedly mounted with knobs 121. The clamping plates 13 are arranged symmetrically front to back. The upper end of the clamping plate 2 13 is fixedly installed with a drive block 2 131. The right end of the drive block 2 131 is slidably connected to the inner side of the slide groove 2 11. The drive block 2 131 and the double-acting screw 2 12 are threadedly connected. The surface of the clamping plate 2 13 is fixedly installed with an anti-slip pad. The housing 1 is connected to the inlet of the plunger cylinder through the inlet connector 3. The pressure relief valve 6 is then assembled on the valve body interface 5. By rotating the knob 1 91 and the knob 2 121, the double-acting screw 1 9 and the double-acting screw 2 12 are driven to rotate respectively, so that the drive block 1 101 drives the clamping plate 1 10 to clamp and fix the pressure relief valve 6. The drive block 2 131 drives the clamping plate 2 13 to clamp and fix the inlet of the piston cylinder, which improves the stability of the assembly of each structure.
[0026] During operation, the housing 1 is connected to the plunger cylinder inlet via the inlet connector 3, and the pressure relief valve 6 is assembled onto the valve body interface 5. By rotating knob 1 91 and knob 2 121, the double-acting lead screw 1 9 and double-acting lead screw 2 12 are driven to rotate, causing drive block 1 101 to drive clamping plate 10 to clamp and fix the pressure relief valve 6, and drive block 2 131 to drive clamping plate 2 13 to clamp and fix the piston cylinder inlet, thus improving the stability of the assembly of each structure. After assembly, the spiral blade 4 extends to the inside of the inlet, and the motor 2 drives the spiral blade 4 to rotate, so that the spiral blade 4 rotates and guides the flow in the inlet, thereby clearing and guiding the flow in the plunger cylinder inlet. At the same time, the pressure relief valve 6 provides pressure relief protection in case of abnormal pressure, thus improving the working stability of the cryogenic booster pump plunger cylinder.
[0027] Through the above steps, the motor 2 drives the spiral blade 4 to rotate, causing the spiral blade 4 to rotate and guide the flow in the inlet, thereby clearing and guiding the flow in the plunger cylinder inlet. At the same time, the pressure relief valve 6 provides pressure relief protection in case of abnormal pressure, thus solving the problem that during the use of the low-temperature booster pump plunger cylinder, the flow rate of the plunger cylinder inlet is affected or even blocked due to the low ambient temperature, which affects the normal operation of the plunger cylinder and lacks pressure relief protection.
Claims
1. A cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism that can be fitted with pressure relief protection, comprising a housing (1), characterized in that: A motor (2) is provided on the right side of the housing (1), an inlet connector (3) is provided on the left end of the housing (1), a spiral blade (4) is provided on the inner side of the housing (1), a valve body interface (5) is provided on the upper end of the housing (1), a pressure relief valve (6) is provided on the upper end of the valve body interface (5), a fixed seat (7) is provided on the left side of the valve body interface (5), a slide groove (8) is provided on the upper end of the fixed seat (7), a double-acting screw (9) is provided on the inner side of the slide groove (8), a clamping plate (10) is provided on the outer side of the pressure relief valve (6), a slide groove (11) is provided on the left side of the fixed seat (7), a double-acting screw (12) is provided on the inner side of the slide groove (11), and a clamping plate (13) is provided on the side of the inlet connector (3).
2. The cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pressure relief protection as described in claim 1, characterized in that: The motor (2) is fixedly connected to the right side of the housing (1). The output end of the motor (2) extends to the inside of the housing (1) and is fixedly connected to the right end of the spiral blade (4). The right end of the spiral blade (4) extends to the outside of the liquid inlet connector (3). The spiral blade (4) and the inside of the liquid inlet connector (3) are mutually adapted.
3. The cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pressure relief protection as described in claim 1, characterized in that: The valve body interface (5) and the inner side of the housing (1) are connected to each other. The lower end of the pressure relief valve (6) and the valve body interface (5) are connected by a connector thread. The fixed seat (7) is fixedly connected to the outer side of the housing (1) and the valve body interface (5).
4. The cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pressure relief protection as described in claim 1, characterized in that: The front and rear ends of the double-acting screw 1 (9) are rotatably connected to the inner side of the slide groove 1 (8), and the front and rear ends of the double-acting screw 1 (9) are fixedly installed on the outer side of the fixed seat (7).
5. The cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pressure relief protection as described in claim 1, characterized in that: The clamping plate (10) is arranged symmetrically in front and back. The left end of the clamping plate (10) is fixedly installed with the drive block (101). The lower end of the drive block (101) is slidably connected to the inner side of the slide groove (8). The drive block (101) and the two-way lead screw (9) are threadedly connected. The surface of the clamping plate (10) is fixedly installed with an anti-slip pad.
6. The cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pressure relief protection as described in claim 1, characterized in that: The front and rear ends of the two-way lead screw (12) are rotatably connected to the inner side of the slide groove (11), and the front and rear ends of the two-way lead screw (12) are fixedly installed on the outer side of the fixed seat (7) with knob (121).
7. The cryogenic booster pump plunger cylinder inlet unblocking and guiding mechanism with pressure relief protection as described in claim 1, characterized in that: The clamping plate 2 (13) is arranged symmetrically in front and back. The upper end of the clamping plate 2 (13) is fixedly installed with the driving block 2 (131). The right end of the driving block 2 (131) is slidably connected to the inner side of the slide groove 2 (11). The driving block 2 (131) and the two-way lead screw 2 (12) are threadedly connected. The surface of the clamping plate 2 (13) is fixedly installed with an anti-slip pad.