Two-stage compression low-temperature cold-carrying refrigerating unit

Abstract

The utility model discloses a two-stage compression low-temperature cold-carrying refrigerating unit, which relates to the technical field of refrigerating unit equipment and comprises a refrigerating unit body and a mounting seat, the lower end of the refrigerating unit body is fixedly connected with a base, the lower end of the base is provided with a damping mechanism, the outer side of the damping mechanism is provided with a pin groove, and the pin groove is fixedly connected with the mounting seat. Fixing mechanisms are symmetrically arranged on the inner side of the mounting base, and the mounting base is connected with the pin groove in a clamped mode through the fixing mechanisms. By the adoption of the structure, in the technical scheme, a refrigerating unit of a refrigeration house is mainly made into a set of skid unit with an evaporator, a refrigerating system is debugged in a factory, only a pump and a secondary refrigerant pipeline need to be connected on site, site installation and processing on a construction site are faster, complex and professional refrigerating debugging is not needed, and standardization is better achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration unit equipment, and particularly relates to a two-stage compression low-temperature cold-carrying refrigeration unit. Background Art

[0002] Driven by the wave of globalization and digitalization, cold chain logistics has become an indispensable part of ensuring food safety, drug quality and stable supply of industrial raw materials. As the core equipment in the cold chain logistics system, the performance of the freezer refrigeration unit directly determines the efficiency and quality of the entire logistics chain. The freezer refrigeration unit, with its efficient refrigeration capacity and stable operating characteristics, provides an ideal storage environment for all kinds of items that need to be stored at low temperatures. From fresh fruits and vegetables to deep-sea seafood, from precision medicines to high-tech materials, freezer refrigeration units are silently guarding the quality and safety of these precious materials.

[0003] At present, the cold storage refrigeration units in the existing technology still have certain shortcomings in actual use. For example, the refrigeration system of the cold storage or quick-freezing storage is a direct expansion or pump liquid supply system. The connection between the unit and the terminal evaporator requires a lot of pressure pipe installation work, which is technically difficult. Secondly, the refrigeration unit will generate certain vibrations during operation, which can easily affect the stability of the installation and use of the unit. Utility Model Content

[0004] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a two-stage compression low-temperature cold-carrying refrigeration unit to solve the problems mentioned in the background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A two-stage compression low-temperature cold-carrying refrigeration unit, comprising a refrigeration unit body and a mounting seat, wherein the lower end of the refrigeration unit body is fixedly connected with a base, the lower end of the base is provided with a shock absorbing mechanism, the outer side of the shock absorbing mechanism is provided with a pin groove, the inner side of the mounting seat is symmetrically provided with a fixing mechanism, the mounting seat is clamped by the fixing mechanism and the pin groove, the inner side of the refrigeration unit body is respectively provided with a coolant storage tank, an evaporator, a gas-liquid separator, an oil cooler, a two-stage refrigeration compressor, an oil-gas separator, a one-way stop valve, an ECO intercooler, a condenser and a circulating pump, the inner side of the shell of the refrigeration unit body is also provided with a coolant tank chamber, and the coolant storage tank is arranged inside the coolant tank chamber;

[0007] The shock absorbing mechanism comprises a shock absorbing pad, a steel plate and a base plate, wherein the shock absorbing pad is symmetrically arranged on the outer side of the steel plate, the shock absorbing pad on the upper end of the steel plate is movably connected to the lower end of the base, the shock absorbing pad at the lower end of the steel plate is movably connected to the upper end of the base plate, a countersunk hole is provided on the inner side of the base, a fixing bolt is provided on the inner side of the countersunk hole, a screw groove is provided on the upper end of the base plate, the threaded ends of the fixing bolt respectively penetrate the steel plate and the shock absorbing pad and are threadedly installed in the screw groove, the pin groove is symmetrically arranged on the outer side of the base plate, and the shock absorbing mechanism can be used to conveniently provide shock absorbing protection for the refrigeration unit body;

[0008] The fixing mechanism includes an installation cavity, which is symmetrically opened on the inner side of the installation seat, a moving plate is slidably connected to the inner side of the installation cavity, a screw is rotatably connected to the inner side of the installation cavity, one end of the screw is rotatably passed through the cavity wall of the installation cavity and a rotary handle is fixedly installed, the moving plate is threadedly connected to the outer side of the screw, a bayonet is symmetrically fixedly installed on one side of the moving plate, the snap-in end of the bayonet slides through the cavity wall of the installation cavity and is plugged into the pin groove, and the refrigeration unit body can be quickly disassembled and assembled through the fixing mechanism.

[0009] As a preferred technical solution, a slot is provided on the inner side of the countersunk hole, a retaining spring is clamped on the inner side of the slot, through holes are provided on the inner sides of the steel plate and the shock-absorbing pad, and the threaded end of the fixing bolt passes through the through holes. The slot and the retaining spring can be used to conveniently limit the end of the fixing bolt to ensure the stability of the installation.

[0010] As a preferred technical solution, a slot is provided at the upper end of the mounting seat, and the lower end of the substrate is plugged into the slot. The slot facilitates the plugging of the upper end of the mounting seat and the substrate.

[0011] As an optimal technical solution, the snap-in end of the latch is spherical, a slide groove is symmetrically provided on the inner side of the installation cavity, the end of the moving plate is slidably connected to the slide groove, and the sliding of the moving plate can be facilitated by the slide groove on the installation cavity.

[0012] As a preferred technical solution, a screw sleeve is fixedly installed on the inner side of the moving plate, and the moving plate is threadedly connected to the outer side of the screw rod through the screw sleeve. The screw sleeve can facilitate the threaded connection between the moving plate and the screw rod.

[0013] As a preferred technical solution, a mounting hole is opened at the upper end of the mounting seat, and a hanging block is symmetrically welded to the upper end of the refrigeration unit body. The mounting hole can be used to conveniently fix the mounting seat, and the hanging block can be used to facilitate quick installation of the refrigeration unit.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] First, this technical solution mainly makes the refrigeration unit of the cold storage into a complete set of skid units with evaporators. The refrigeration system has been debugged in the factory. Only the pump and the refrigerant pipe need to be connected on site, making the on-site installation and processing faster, without complex and professional refrigeration debugging, and more standardized;

[0016] Second, the fixing bolts on the base are used to penetrate the steel plate and the shock-absorbing pads and fix them to the base plate, and the shock-absorbing pads on both sides of the steel plate are between the base and the base plate, so that the vibration generated by the refrigeration unit body can be buffered and shock-absorbed, thereby ensuring the stability of the installation of the refrigeration unit body;

[0017] Third, after the refrigeration unit body is positioned and plugged into the mounting seat, the latching end of the bayonet corresponds to the position of the pin groove on the base plate, and the screw is rotated in the mounting cavity using the rotary handle to make the shift plate connected by the outer thread slide, and the shift plate can be inserted into the pin groove of the base plate through the connected bayonet. When disassembling, no tools are required, and only the screw needs to be rotated in the reverse direction to separate the bayonet pin and the pin groove, so that the refrigeration unit body can be quickly disassembled and assembled for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a partial exploded view of the utility model;

[0020] Figure 3 This is an exploded view of the shock absorbing mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the fixing mechanism structure of the utility model

[0022] Figure 5 It is a cross-sectional view of the coolant tank chamber of the utility model;

[0023] Figure 6 It is a schematic diagram of the internal structure of the double-stage screw refrigeration unit of the utility model.

[0024] Figure numerals: 1. Refrigeration unit body; 101. Coolant storage tank; 102. Evaporator; 103. Gas-liquid separator; 104. Oil cooler; 105. Two-stage refrigeration compressor; 106. Oil-gas separator; 107. One-way stop valve; 108. ECO intercooler; 109. Condenser; 1010. Circulation pump; 2. Base; 3. Shock-absorbing mechanism; 301. Countersunk hole; 302. Shock-absorbing pad ; 303, steel plate; 304, screw groove; 305, base plate; 306, fixing bolt; 4, mounting seat; 5, fixing mechanism; 501, mounting cavity; 502, shift plate; 503, latch pin; 504, screw rod; 505, handle; 6, mounting hole; 7, hanging block; 8, retaining spring; 9, latch groove; 10, through hole; 11, slot; 12, pin groove; 13, slide groove; 14, screw sleeve; 15, coolant tank chamber. DETAILED DESCRIPTION

[0025] refer to Figures 1 to 6 The present embodiment describes a two-stage compression low-temperature cold-carrying refrigeration unit, comprising a refrigeration unit body 1 and a mounting seat 4. The lower end of the refrigeration unit body 1 is fixedly connected to a base 2. A damping mechanism 3 is provided at the lower end of the base 2. A pin groove 12 is provided on the outer side of the damping mechanism 3. A fixing mechanism 5 is symmetrically provided on the inner side of the mounting seat 4. The mounting seat 4 is connected by the fixing mechanism 5 and the pin groove 12. A coolant storage tank 101, an evaporator 102, and a gas-liquid separator 10 are provided on the inner side of the refrigeration unit body 1. 3. Oil cooler 104, two-stage refrigeration compressor 105, oil-gas separator 106, one-way stop valve 107, ECO intercooler 108, condenser 109 and circulating pump 1010. A coolant tank chamber 15 is also provided inside the shell of the refrigeration unit body 1. The coolant storage tank 101 is provided inside the coolant tank chamber 15. The refrigeration unit body 1 also includes an electronic control system. The arrow at the oil cooler 104 is the inlet and outlet of cooling water, and the arrow at the condenser 109 is the inlet and outlet of cooling water.

[0026] The shock absorbing mechanism 3 includes a shock absorbing pad 302, a steel plate 303 and a base plate 305. The shock absorbing pad 302 is symmetrically arranged on the outer side of the steel plate 303. The shock absorbing pad 302 at the upper end of the steel plate 303 is movably connected to the lower end of the base 2. The shock absorbing pad 302 at the lower end of the steel plate 303 is movably connected to the upper end of the base plate 305. A countersunk hole 301 is provided on the inner side of the base 2. A fixing bolt 306 is provided on the inner side of the countersunk hole 301. A screw groove 304 is provided on the upper end of the base plate 305. The fixing bolt 306 is provided on the inner side of the base plate 305. The threaded ends of the steel plate 303 and the shock-absorbing pad 302 are respectively threadedly installed with the screw groove 304, and the pin groove 12 is symmetrically arranged on the outside of the base plate 305. The steel plate 303 and the shock-absorbing pad 302 are fixed to the base plate 305 by the fixing bolts 306 on the base 2, and the shock-absorbing pads 302 on both sides of the steel plate 303 are between the base 2 and the base plate 305, so that the vibration generated by the refrigeration unit body 1 can be buffered and damped, thereby ensuring the stability of the installation of the refrigeration unit body 1;

[0027] The fixing mechanism 5 includes an installation cavity 501, which is symmetrically arranged on the inner side of the installation seat 4. A moving plate 502 is slidably connected to the inner side of the installation cavity 501. A screw rod 504 is rotatably connected to the inner side of the installation cavity 501. One end of the screw rod 504 is rotatably penetrated through the cavity wall of the installation cavity 501 and fixedly installed with a handle 505. The moving plate 502 is threadedly connected to the outer side of the screw rod 504. A bayonet 503 is symmetrically fixedly installed on one side of the moving plate 502. The snap-in end of the bayonet 503 slides through the cavity wall of the installation cavity 501 and is plugged into the pin groove 12. When the refrigeration unit body After being positioned and plugged on the mounting seat 4, the engaging end of the bayonet 503 corresponds to the position of the pin groove 12 on the base plate 305, and the screw rod 504 is rotated in the mounting cavity 501 by using the rotary handle 505, so that the moving plate 502 connected with the outer thread slides, and the moving plate 502 can be engaged with the pin groove 12 of the base plate 305 through the bayonet 503 connected thereto. When disassembling, no tools are needed, and only the screw rod 504 needs to be rotated in the reverse direction to separate the bayonet 503 and the pin groove 12, so that the refrigeration unit body 1 can be quickly disassembled and assembled.

[0028] refer to Figure 3 A slot 9 is provided on the inner side of the countersunk hole 301, and a retaining spring 8 is clamped on the inner side of the slot 9. A through hole 10 is provided on the inner side of the steel plate 303 and the shock-absorbing pad 302, and the threaded end of the fixing bolt 306 passes through the through hole 10. The retaining spring 8 is installed at the slot 9 in the countersunk hole 301, which can facilitate the end limit of the fixing bolt 306, thereby ensuring the stability of the shock-absorbing mechanism 3. The threaded end of the fixing bolt 306 passes through the through hole 10 on the steel plate 303 and the shock-absorbing pad 302, which can facilitate the installation of the shock-absorbing mechanism 3.

[0029] refer to Figure 2 and Figure 4A slot 11 is provided at the upper end of the mounting seat 4, and the lower end of the substrate 305 is plugged into the slot 11. By plugging the substrate 305 into the slot 11 on the mounting seat 4, the shock absorbing mechanism 3 at the lower end of the refrigeration unit body 1 can be conveniently positioned and installed.

[0030] refer to Figure 4 The snap-in end of the latch 503 is spherical, and a slide groove 13 is symmetrically provided on the inner side of the installation cavity 501. The end of the moving plate 502 is slidably connected to the slide groove 13. By sliding the end of the moving plate 502 in the slide groove 13 in the installation cavity 501, the stability of the moving plate 502 can be improved.

[0031] refer to Figure 4 A screw sleeve 14 is fixedly installed on the inner side of the moving plate 502, and the moving plate 502 is threadedly connected to the outer side of the screw rod 504 through the screw sleeve 14. The moving plate 502 with the screw sleeve 14 can be conveniently threadedly connected to the screw rod 504.

[0032] refer to Figure 1 A mounting hole 6 is provided at the upper end of the mounting seat 4, and a hanging block 7 is symmetrically welded at the upper end of the refrigeration unit body 1. The mounting hole 6 on the mounting seat 4 can be used to conveniently install and fix the mounting seat 4 to the ground, and the hanging block 7 on the refrigeration unit body 1 can be used to conveniently install the refrigeration unit body 1.

[0033] Principle and advantages of use: During use, when installing the refrigeration unit body 1, first install the mounting seat 4 on the designated ground, then use the aerial crane combined with the lifting block 7 to transport the refrigeration unit body 1 to the slot 11 at the upper end of the mounting seat 4. When the refrigeration unit body 1 is positioned and plugged into the mounting seat 4, the snap-in end of the bayonet 503 corresponds to the position of the pin slot 12 on the base plate 305, and the screw rod 504 is rotated in the mounting cavity 501 using the rotary handle 505, so that the moving plate 502 connected by the outer thread slides, and the moving plate 502 can be snapped into the pin slot 12 of the base plate 305 through the bayonet 503 connected thereto. When disassembling, no tools are needed, and only the screw rod 504 needs to be rotated in the reverse direction to separate the bayonet 503 and the pin slot 12 for disassembly.

[0034] The fixing bolts 306 on the base 2 penetrate the steel plate 303 and the shock-absorbing pads 302 and fix them to the base plate 305, and the shock-absorbing pads 302 on both sides of the steel plate 303 are between the base 2 and the base plate 305, so that the vibration generated by the refrigeration unit body 1 can be buffered and shock-absorbed, thereby ensuring the installation stability and service life of the refrigeration unit body 1.

Claims

1. A two-stage compression low-temperature cold-carrying refrigeration unit, comprising a refrigeration unit body and a mounting seat, characterized in that: The lower end of the refrigeration unit body is fixedly connected with a base, the lower end of the base is provided with a shock absorbing mechanism, the outer side of the shock absorbing mechanism is provided with a pin groove, the inner side of the mounting seat is symmetrically provided with a fixing mechanism, the mounting seat is clamped by the fixing mechanism and the pin groove, the inner side of the refrigeration unit body is respectively provided with a coolant storage tank, an evaporator, a gas-liquid separator, an oil cooler, a two-stage refrigeration compressor, an oil-gas separator, a one-way stop valve, an ECO intercooler, a condenser and a circulating pump, the inner side of the shell of the refrigeration unit body is also provided with a coolant tank chamber, and the coolant storage tank is arranged inside the coolant tank chamber; The shock absorbing mechanism includes a shock absorbing pad, a steel plate and a base plate, the shock absorbing pad is symmetrically arranged on the outer side of the steel plate, the shock absorbing pad on the upper end of the steel plate is movably connected to the lower end of the base, the shock absorbing pad at the lower end of the steel plate is movably connected to the upper end of the base plate, a countersunk hole is provided on the inner side of the base, a fixing bolt is provided on the inner side of the countersunk hole, a screw groove is provided on the upper end of the base plate, the threaded ends of the fixing bolt respectively penetrate the steel plate and the shock absorbing pad and are threadedly installed in the screw groove, and the pin groove is symmetrically provided on the outer side of the base plate.

2. A two-stage compression low-temperature cold-carrying refrigeration unit according to claim 1, characterized in that: A slot is provided on the inner side of the countersunk hole, a retaining spring is clamped on the inner side of the slot, through holes are provided on the inner sides of the steel plate and the shock-absorbing pad, and the threaded end of the fixing bolt passes through the through holes.

3. A two-stage compression low-temperature cold-carrying refrigeration unit according to claim 1, characterized in that: The upper end of the mounting seat is provided with a slot, and the lower end of the base plate is plugged into the slot.

4. A two-stage compression low-temperature cold-carrying refrigeration unit according to claim 1, characterized in that: The fixing mechanism includes an installation cavity, which is symmetrically opened on the inner side of the installation seat, and a moving plate is slidably connected to the inner side of the installation cavity, and a screw is rotatably connected to the inner side of the installation cavity, one end of the screw is rotatably passed through the cavity wall of the installation cavity and fixedly installed with a rotary handle, the moving plate is threadedly connected to the outer side of the screw, and a bayonet is symmetrically fixedly installed on one side of the moving plate, and the snap-in end of the bayonet slides through the cavity wall of the installation cavity and is plugged into the pin groove.

5. A two-stage compression low-temperature cold-carrying refrigeration unit according to claim 4, characterized in that: The engaging end of the bayonet is spherical, and a sliding groove is symmetrically provided on the inner side of the installation cavity, and the end of the moving plate is slidably connected to the sliding groove.

6. A two-stage compression low-temperature cold-carrying refrigeration unit according to claim 4, characterized in that: A screw sleeve is fixedly installed on the inner side of the moving plate, and the moving plate is threadedly connected to the outer side of the screw rod through the screw sleeve.

7. A two-stage compression low-temperature cold-carrying refrigeration unit according to claim 1, characterized in that: A mounting hole is provided at the upper end of the mounting seat, and a hanging block is symmetrically welded at the upper end of the refrigeration unit body.

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