A small portable cabinet type helium compressor

Abstract

The utility model discloses a small portable cabinet type helium compressor, aims at solving the problem of traditional helium compressor volume big, poor portability, inconvenient maintenance and the problem of insufficient heat dissipation efficiency. Including horizontal scroll pressure package, fan, air cooling heat exchanger and frame, frame integration front panel, rear panel, bottom plate and side panel, and electric control box can be installed from the front panel opening place pull type, and control panel can be detachable and cover on the upper portion of front panel, and horizontal scroll pressure package, fan and ventilation grille panel are arranged vertically below the electric control box, and the rear panel is equipped with exhaust window, air inlet and exhaust port, power supply interface and circuit breaker, and the bottom plate is equipped with guide rail, cushion block and trundle, and the front and rear panels are all adapted to detachable handle. The application is designed by modular integration and pull type structure, which can significantly improve the portability and maintenance convenience of the equipment, optimize the heat dissipation effect, and adapt to the use requirements of multiple scenes such as laboratory and emergency support.

Description

Technical Field

[0001] This utility model relates to the field of helium compressor technology, and in particular to a small portable cabinet-type helium compressor. Background Technology

[0002] Currently, in cryogenic industrial and commercial applications, some equipment is limited by installation space, leading to an increasing demand for lightweight and portable designs. Traditional compressor systems are typically bulky and require complex water-cooling equipment, resulting in a large overall footprint and necessitating additional operating space for installation and maintenance. To meet market demands, portable mobile compressors are emerging, achieving efficient operation within limited spaces through structural optimization and size reduction.

[0003] Existing helium compressors are mostly floor-mounted, resulting in a large size. Furthermore, the inlet / outlet and power interfaces are often concentrated on the same front panel, leading to a fragmented structural design. The integration of components such as the electrical control system, compressor unit, and cooling system is low, occupying a large space and making installation and disassembly complex. The integration of multiple components within the cabinet makes them prone to malfunctions due to uneven heat dissipation. Additionally, the cooling system has poor compatibility with the cabinet structure; in some models, the exhaust vent and heat exchanger positions are mismatched, resulting in insufficient cooling efficiency and affecting the long-term operational stability of the compressor. In the event of a malfunction, the electrical control box of traditional compressors is often fixed, requiring the removal of multiple external components to inspect the internal circuitry. Simultaneously, the maintenance of the compressor unit and piping is limited by the overall structure, causing inconvenience for subsequent maintenance and repair. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a small, portable cabinet-type helium compressor that is easy to maintain and has a layout that is more conducive to heat dissipation.

[0005] Technical Solution: The present invention discloses a small portable cabinet-type helium compressor, comprising a horizontal scroll compressor, a fan, an air-cooled heat exchanger, and a frame for storing the helium compressor system. An electrical control box with control circuitry can be pulled out from or extended into the frame through an opening in the front panel. The control panel is detachably covered by the upper opening of the front panel. The lower part of the front panel is a ventilation grille panel. The horizontal scroll compressor, the fan, and the ventilation grille panel are arranged longitudinally in the area directly below the electrical control box. The upper edges of the three components are at a lower level than the lower edge of the electrical control box. The frame also has a rear panel, a bottom plate, and side panels.

[0006] Furthermore, an exhaust window is provided on the rear panel, which corresponds to the installation position of the air-cooled heat exchanger. The flow area of ​​the exhaust window is not less than the heat exchange area of ​​the air-cooled heat exchanger, ensuring that the hot air after heat exchange can be quickly discharged and avoiding heat accumulation.

[0007] Furthermore, the rear panel is equipped with a low-pressure air inlet and a high-pressure exhaust outlet. The low-pressure air inlet is connected to the helium inlet pipeline to introduce helium to be compressed; the high-pressure exhaust outlet is connected to the helium exhaust pipeline to output high-pressure helium. The air inlet and exhaust outlet are integrated into the rear panel for easy pipeline connection and organization.

[0008] Furthermore, the rear panel also features a power interface for the cold head, a power interface for the helium compressor, and a circuit breaker. The circuit breaker is connected in series with the power interface for the helium compressor to control the on / off state of the compressor's main circuit, providing overload and short-circuit protection. The integrated power interface design enhances the ease of wiring the equipment.

[0009] Furthermore, two parallel guide rails are fixedly installed at the bottom of the base plate. The extension direction of the guide rails is consistent with the overall pulling direction of the compressor. The guide rails enable the compressor to be smoothly pulled out and removed from the cabinet, facilitating equipment installation and overall maintenance. Pads are fixedly installed at the four corners of the bottom of the base plate. Threaded holes are drilled inside the pads, and the casters are screwed into these holes via external threads, facilitating short-distance movement of the equipment and improving portability.

[0010] Furthermore, the rear panel has mounting holes for a detachable handle. Nuts are pre-embedded in these holes, and the detachable handle is secured to the front panel by bolts. The detachable handle allows the entire helium compressor to be pulled out from the back of the cabinet, adapting to situations where front space is limited and improving operational flexibility. Additionally, the electrical control box can be accessed and serviced separately. The control panel is detachably connected to the front panel by bolts, and handles are located on both sides of the control panel. These handles allow the electrical control box and control panel to be pulled out together, enabling quick and easy maintenance without disassembling other components.

[0011] Beneficial effects: Compared with the prior art, this utility model has the following advantages: (1) The internal structure layout adopts "layered upper and lower, rear directional heat dissipation", which can not only restrict the airflow to flow in the lower frame and avoid entering the electrical control box, thereby preventing the electrical components from accumulating dust and causing failure, but also ensure that the cooling airflow enters the air-cooled heat exchanger in a straight and smooth manner to exchange heat, improve heat dissipation performance, and make the compressor operation more stable and safe; (2) The electrical control box adopts a pull-out design, which can be quickly pulled out through the handles on both sides of the control panel without disassembling the overall structure; the rear panel is equipped with a detachable handle to realize the whole machine pull-out, making maintenance more convenient; (3) The layout is more reasonable, avoiding the air inlet and outlet interfaces and power interfaces being concentrated on the front panel, causing wiring confusion; (4) The base plate is equipped with switchable pads and casters, combined with the guide rail structure, which not only ensures static stability, but also facilitates short-distance movement. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of the electrical control box after it has been removed.

[0014] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 4 This is a side view of the overall structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the electrical control box in this utility model;

[0017] Figure 6 This is a schematic diagram of the base plate of this utility model. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0019] As shown in the figure, this embodiment provides a small portable cabinet-type helium compressor, including a horizontal scroll compressor 10, a fan 11, an air-cooled heat exchanger 12, and a frame 2 for storing the helium compressor system. The frame 2 is made of a single piece of sheet metal, with a front panel 21, a rear panel 22, and a bottom plate 23 integrally formed, which enhances the overall structural rigidity, prevents deformation, and simplifies the installation and disassembly process. The side panels 24 are detachable, facilitating the installation and maintenance of internal components. The front panel, rear panel, and bottom plate all have bent side panels with holes and pre-embedded nuts for installing the side panels and top panel 25. Two parallel guide rails 5 are fixedly installed at the bottom of the bottom plate 23, which are used to pull the compressor out. Pads 6 are fixedly installed at the four corners of the bottom of the bottom plate 23. The pads 6 have threaded holes inside, and the casters 7 are screwed into the threaded holes of the pads 6 through external threads.

[0020] The frame 2 houses a helium compressor system. The gas path of this system is as follows: low-pressure helium gas, after being discharged from the cold head, enters the system through the low-pressure inlet 222. The gas supply port 213, the low-pressure inlet 222, and one end of the low-pressure sensor 13 and one end of the buffer tank 14 are sequentially connected. The other end of the buffer tank 14 is sequentially connected to the buffer tank filter and one end of the one-way valve 16. The other end of the one-way valve 16 is connected to the intake port of the horizontal scroll compressor 10. After being heated and pressurized within the horizontal scroll compressor 10, the helium gas is discharged through the compressor exhaust port. The exhaust port is connected to a temperature sensor and one end of an air-cooled heat exchanger 12 in sequence via an air pipe; a fan 11 is arranged on the air-cooled heat exchanger 12; the other end of the air-cooled heat exchanger 12 is connected to one end of an oil separator 17; the other end of the oil separator 17 is connected to one end of a solenoid valve 15, one end of a high-pressure sensor 18, a safety valve 19, and one end of an adsorber 20 in sequence; the other end of the solenoid valve 15 is connected to a fixed flow regulating device and the other end of a low-pressure sensor 13 in sequence; the other end of the high-pressure sensor 18 is connected to a pressure gauge 212; the other end of the adsorber 20 is connected to a high-pressure exhaust port 223 and a cold head in sequence.

[0021] The oil circuit of the helium compressor system is as follows: after being separated by the oil separator 17, the lubricating oil enters one end of the second filter 26. The other end of the second filter 26 is connected to one end of the second throttling orifice. The other end of the second throttling orifice merges into the low-pressure helium pipeline and is connected to one end of the pressurized tumbler inlet. After being heated and pressurized by the pressurized tumbler, the lubricating oil is discharged from one end of the oil drain port. The other end of the oil drain port is sequentially connected to the oil replenishment port 27 and one end of the air-cooled heat exchanger 12. The other end of the air-cooled heat exchanger 12 is connected to one section of the first filter 28. The other end of the first filter 28 is connected to one end of the first throttling orifice. The other end of the first throttling orifice is connected to the oil inlet of the horizontal scroll pressurized tumbler 10 and re-enters the pressurized tumbler.

[0022] The compressor's pressure pack is arranged in a horizontal scroll configuration within the frame 2 to reduce the overall height of the unit. The electrical control box 3 is located above the horizontal scroll pressure pack 10. The electrical control box 3, equipped with control circuitry, can be pulled out from or inserted into the frame 2 through the opening in the front panel 21. The electrical control box 3 is surrounded by a cover 31, which houses multiple electrical components. The cover 31 has multiple openings around its perimeter for wiring harnesses and electrical component installation, facilitating the insertion and removal of connectors during subsequent installation and maintenance, while also contributing to overall weight reduction. The lower part of the front panel 21 is a ventilation grille panel 211, which features a perforated design to allow external air to enter the frame 2. The horizontal vortex pressure pack 10, fan 11, and ventilation grille panel 211 are all arranged longitudinally in the area directly below the electrical control box 3. The upper edges of these three components are at a lower level than the lower edge of the electrical control box 3, forming a layered layout. This avoids the electrical control box 3 obstructing airflow and achieves physical isolation between electrical components and power parts, improving operational safety. Additionally, an exhaust window 221 is provided on the rear panel 22, corresponding to the installation position of the air-cooled heat exchanger 12. The flow area of ​​the exhaust window is not less than the heat exchange area of ​​the air-cooled heat exchanger, ensuring that the hot air after heat exchange can be quickly discharged. The cover 31 forms the upper wall of the air intake channel, which can restrict the airflow within the lower frame, preventing it from entering the electrical control box and thus preventing dust accumulation on electrical components that could lead to malfunctions. This structure facilitates the smooth flow of cooling air into the air-cooled heat exchanger, reducing eddy currents and lowering the risk of dust accumulation.

[0023] The front panel 21 has reserved positions for a pressure gauge 212 and an air inlet 213; the rear panel 22 is equipped with a low-pressure air inlet 222, a high-pressure exhaust outlet 223, a cold head power interface 224, a helium compressor power interface 225, and a circuit breaker 13. The low-pressure air inlet and high-pressure exhaust outlet are both secured to the rear panel via through-plate connections and nuts. The circuit breaker 13 is fixed to the rear panel in the form of a bracket and is used to control the on / off state of the compressor's main circuit, providing fault protection. The cold head power interface 224 and the helium compressor power interface 225 are fixed to the rear panel with screws using pre-embedded nuts on the rear panel. This design layout is reasonable and avoids the wiring chaos caused by placing multiple interfaces on the front panel.

[0024] The control panel 4 is detachably connected to the front panel 21 via bolts. Through holes are drilled in the control panel, their positions corresponding to the pre-embedded nuts in the holes around the perimeter of the front panel. The control panel and frame are secured by bolts screwed into the threaded holes. The control panel 4 is also detachably connected to the cover 31 of the electrical control box. Nuts are pre-embedded in the holes around the front panel of the cover for mounting the control panel. Through holes are drilled in the same positions on the control panel to facilitate bolt screwing into the threaded holes for fixation. The control panel 4 has display instruments, operation buttons, and electrical interfaces. Handles 8 are mounted on both sides. When all bolts on the cover 31 and the front panel 21 of the frame are tightened, the compressor can be pulled out from the front of the cabinet using the handles 8 on the control panel 4. Similarly, only the screws inside the cover 31 can be tightened, and the screws on the front panel 21 of the frame can be removed. Using the handles 8, the control panel 4, along with the electrical control box 3, can be pulled out from the front of the cabinet for easy inspection and maintenance of the electrical control box 3. Removing the electrical control box also frees up internal space within the compressor frame, facilitating inspection and maintenance of pipes and other fixed components. The rear panel 22 also has mounting holes for installing the detachable handle 9. When the space at the front of the cabinet is limited, the compressor can be pulled out from the back of the cabinet through the detachable handle 9, improving the flexibility of use.

[0025] During operation, external helium gas enters the horizontal scroll compressor 10 through the low-pressure inlet 222 on the rear panel 22, is compressed to form high-pressure helium gas, and is discharged from the high-pressure exhaust port 223. The fan 11 starts, and external air enters the frame 2 through the ventilation grille panel 211 on the front panel 21, flows through the horizontal scroll compressor 10 and the air-cooled heat exchanger 12, absorbs heat, and is discharged from the exhaust window 221 on the rear panel 22, thus achieving heat dissipation. The control circuit in the electrical control box 3 uses the control panel 4 to start / stop the compressor, adjust parameters, and monitor faults. The circuit breaker 13 provides overload and short-circuit protection for the main circuit. When the electrical control box 3 needs maintenance, the connecting bolts between the control panel 4 and the front panel 21 are removed, and the control panel 4 and electrical control box 3 can be pulled out together by holding the handle 8. When the compressor needs overall maintenance, the entire unit can be pulled out of the cabinet using the handle 8 on the front panel or the detachable handle 9 on the rear panel, with the help of the guide rail 5 on the base plate 23. When the equipment needs to be moved, the casters 7 allow for short-distance movement.

Claims

1. A small, portable cabinet-type helium compressor, comprising a horizontal scroll compressor (10), a fan (11), an air-cooled heat exchanger (12), and a frame (2) for storing the helium compressor system, characterized in that, The control box (3) with control circuit can be pulled out from the opening of the front panel (21) of the frame (2) or extended into the frame. The control panel (4) is detachably covered by the upper opening of the front panel. The lower part of the front panel (21) is a ventilation grille panel (211). The horizontal vortex press (10), fan (11) and ventilation grille panel (211) are arranged longitudinally in the area directly below the control box (3). The upper edge of the three is lower than the lower edge of the control box (3). The frame (2) also has a rear panel (22), a bottom plate (23) and a side panel (24).

2. The small portable cabinet-type helium compressor according to claim 1, characterized in that, An exhaust window (221) is provided on the rear panel (22). The exhaust window (221) corresponds to the installation position of the air-cooled heat exchanger (12), and the flow area of ​​the exhaust window (221) is not less than the heat exchange area of ​​the air-cooled heat exchanger (12).

3. The small portable cabinet-type helium compressor according to claim 1, characterized in that, The rear panel (22) is also provided with a low-pressure air inlet (222) and a high-pressure exhaust outlet (223).

4. The small portable cabinet-type helium compressor according to claim 1, characterized in that, The rear panel (22) is also equipped with a cold head power interface (224), a helium compressor power interface (225), and a circuit breaker (13).

5. The small portable cabinet-type helium compressor according to claim 1, characterized in that, The electrical control box (3) is provided with a cover (31) on the outside, and the cover (31) has multiple openings around its perimeter for laying wire harnesses and installing electrical components.

6. The small portable cabinet-type helium compressor according to claim 1, characterized in that, Two parallel guide rails (5) are fixedly installed on the bottom of the base plate (23), and the guide rails (5) are used to realize the overall pulling of the compressor.

7. The small portable cabinet-type helium compressor according to claim 1, characterized in that, The four corners of the bottom of the base plate (23) are fixedly provided with pads (6), and the pads (6) have threaded holes inside. The casters (7) are screwed into the threaded holes of the pads (6) through external threads.

8. The small portable cabinet-type helium compressor according to claim 1, characterized in that, The control panel (4) is detachably connected to the front panel (21) by bolts. The left and right sides of the control panel (4) are equipped with handles (8), which can be used to pull out the electrical control box (3) and the control panel (4) together.

9. The small portable cabinet-type helium compressor according to claim 1, characterized in that, The rear panel (22) has mounting holes for installing a detachable handle (9) to pull the entire helium compressor out from the back of the cabinet.

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