CN219872680U - Small-sized refrigerating device practical operation system - Google Patents

Small-sized refrigerating device practical operation system Download PDF

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Publication number
CN219872680U
CN219872680U CN202320572885.7U CN202320572885U CN219872680U CN 219872680 U CN219872680 U CN 219872680U CN 202320572885 U CN202320572885 U CN 202320572885U CN 219872680 U CN219872680 U CN 219872680U
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pressure
valve
refrigeration
control valve
replacement
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CN202320572885.7U
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苏永生
明廷涛
屈铎
李雁飞
冯巧莲
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Naval University of Engineering PLA
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Naval University of Engineering PLA
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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Abstract

The utility model belongs to the technical field of teaching auxiliary equipment, and particularly relates to a small-sized refrigeration device practical operation system. The refrigeration real operation assembly is arranged on the real operation platform; the real operation platform comprises: table, cooling chamber, raft; the table comprises a mounting rack and a power distribution cabinet; the refrigeration real operation assembly comprises various control valves and sensors; the utility model spreads the main control structure and the connection relation of the multi-level refrigeration system with complicated original structure and difficult resolution through two planes, can effectively improve the understanding of students in the teaching process, realizes the practical telephone operability of all key structures and management, and can be used for realizing the teaching contents of replacement maintenance simulation, fault simulation, rush repair simulation and the like by configuring additional pipelines and control valves. The device is flexible in use and small in size, so that students can effectively learn the working principle of the device before carrying out operation simulation of real equipment, and the relation between the working state and the structural characteristics is effectively learned, so that the teaching quality is improved.

Description

Small-sized refrigerating device practical operation system
Technical Field
The utility model belongs to the technical field of teaching auxiliary equipment, and particularly relates to a small-sized refrigeration device practical operation system.
Background
The refrigerating device is an essential functional component of the prior large-scale equipment or system, is an important guarantee for the stable operation of a plurality of key devices or structures, and the operation state of the refrigerating device directly influences the stability of the devices or structures, so that the refrigerating device is also very important in courses such as maintenance of various devices, use of the devices and the like, and in order to realize teaching, various models of the refrigerating device are required to be used for displaying and simulating, but the conventional refrigerating device teaching device is mainly a static model and does not have the function of simulating an actual refrigerating process, and a small amount of devices with corresponding functions mostly adopt a contracted version or a simplified version of the structure of the actual refrigerating device, but in the actual teaching process, various teaching target requirements such as valve replacement maintenance, pipeline replacement maintenance, structural fault simulation and the like are related, and the conventional refrigerating simulation device is difficult to completely meet the actual teaching use requirement.
Disclosure of Invention
The utility model aims to provide a small-sized refrigeration device practical operation system which is mainly used for better simulating and displaying the working operation principle of a refrigeration device and the characteristics of the device in various states and is convenient for various replacement and maintenance and fault state simulation.
In order to achieve the above purpose, the present utility model adopts the following technical scheme.
A small-sized refrigeration device practical operation system comprises a practical operation table and a refrigeration practical operation assembly arranged on the practical operation table;
the real operation platform comprises: table 1, cold room 2, raft 3;
the table 1 comprises a mounting frame 1a, a power distribution cabinet 11 arranged on the front side of the mounting frame 1a, and a mounting panel 12 arranged on the top of the mounting frame 1 a; the cold room 2 is arranged on the lower side of the installation panel 12, and the raft 3 is erected between the installation panel 12 and the power distribution cabinet 11;
the refrigeration real operation subassembly includes: a temperature controller 30, a low-pressure side pressure gauge P1, a high-pressure side pressure gauge P2, a pressure controller 31, a front cooling control valve K1, a refrigeration pressure gauge P3, an electromagnetic control valve K2, a thermal expansion valve K4, a middle cooling control valve K6 and a feedback control valve K15 which are arranged on the raft 3; the front gas-liquid separator 4, the compressor 5, the high-pressure output valve K9, the low-pressure backflow control valve K10, the rear cooling control valve K11, the rear gas-liquid separator 6, the heat dissipation condenser 7, the liquid reservoir 8, the drying filter 9 and the bypass control valve K14 are arranged on the mounting panel 12; a refrigeration condenser 20, a heater 21, and a temperature sensor 22 provided in the cold room 2;
the output of the compressor 5 is connected to a liquid reservoir 8 through a high-pressure output valve K9, a rear gas-liquid separator 6 and a heat dissipation condenser 7 in sequence to form a refrigeration simulation loop L1;
the output of the liquid reservoir 8 is led out of a pretreatment branch L2 and a non-pretreatment branch L3 through a drying filter 9 and a bypass control valve K14 respectively, and the output of the two branches is connected to a front cooling control valve K1;
the output of the front cooling control valve K1 is divided into two paths, one path forms a self-feedback control cooling branch L4 through an electromagnetic control valve K2 and a thermal expansion valve K4, the other path forms a manual control cooling branch L5 through a middle cooling control valve K6, and the two branches form a low-pressure reflux loop L6 through a merging rear cooling control valve K11, a refrigeration condenser 20, a low-pressure reflux control valve K10 and a front gas-liquid separator 4 and finally return to the compressor; the temperature sensing end of the thermal expansion valve K4 is positioned at the output end of the refrigeration condenser 20;
the low-side pressure gauge P1 is used for measuring the input pressure of the compressor, the pressure controller 31 is used for balancing the air pressure at two ends of the compressor, the high-side pressure gauge P2 is used for measuring the output pressure of the compressor, and the refrigeration pressure gauge P3 is used for measuring the output pressure of the front cooling control valve K1.
Further improvement or preferred implementation scheme to the aforesaid small-size refrigerating plant real operating system still includes replacement simulation auxiliary structure, including expansion valve replacement simulation auxiliary valve group, low pressure backward flow rush repair simulation auxiliary valve group, filter replacement simulation auxiliary valve group, wherein:
the expansion valve replacement simulation auxiliary valve group comprises a first disassembly and replacement auxiliary valve K3 and a second disassembly and replacement auxiliary valve K5 which are arranged on the raft 3, and the first disassembly and replacement auxiliary valve K3 and the second disassembly and replacement auxiliary valve K5 are connected in series into the self-feedback control cooling branch L4 and are positioned on the front side and the rear side of the thermal expansion valve K4;
the low-pressure backflow rush-repair simulation auxiliary valve group comprises a third dismantling auxiliary valve K7 and a fourth dismantling auxiliary valve K8 which are arranged on the raft 3, and the third dismantling auxiliary valve K7 and the fourth dismantling auxiliary valve K8 are connected into a low-pressure backflow loop L6 in series and are positioned between a low-pressure backflow control valve K10 and the front gas-liquid separator 4;
the filter replacement simulation auxiliary valve group comprises a fifth replacement auxiliary valve K12 and a sixth replacement auxiliary valve K13 which are arranged on the installation panel 12; the fifth and sixth auxiliary valves K12 and K13 are connected in series to the pretreatment branch L2 and are located on the front and rear sides of the drier-filter 9.
Further improvement or preferred implementation of the small refrigeration device practical operation system further comprises a low pressure analog injection interface J1 arranged between the front gas-liquid separator 4 and the compressor 5, and a high pressure analog injection port J2 arranged at the rear side of the output port of the liquid reservoir 8;
in a further development or preferred embodiment of the aforementioned compact refrigeration unit operating system, the temperature controller 30 is configured to control the heater 21 to be started or stopped, and the temperature sensor 22 is configured to detect the temperature in the cold room 2.
A further improvement or a preferred embodiment of the small-sized refrigeration device practical operation system, wherein the cold room 2 is composed of a heat-preserving shell 23, a suspension arm 24 arranged on the top of the inner wall of the heat-preserving shell 23, and a refrigeration condenser 20 arranged on the suspension arm 24;
the heater 21 is an electric heating plate or an electric heating rod, and the heater 21 is disposed directly below the refrigeration condenser 20.
Further improvement or preferred implementation of the aforesaid small-size refrigerating plant real operating system, switch board 11 top flushes with raft 3 bottom edge, and switch board 11 top is provided with the level and puts thing board 110, the switch board inner chamber separates by vertical baffle and forms the control chamber that is used for installing the distribution original paper and is used for depositing the instrument chamber of instrument.
The beneficial effects are that:
the small-sized refrigeration device practical operation system of the utility model spreads the main control structure and the connection relation of the multi-level refrigeration system which has complicated and difficult resolution of the original structure through the reasonable layout structural design, can effectively improve the understanding of students in the teaching process, realizes the practical speech operability of all key structures and management, and can be used for realizing the teaching contents of replacement maintenance simulation, fault simulation, rush repair simulation and the like by configuring additional pipelines and control valves. The device is flexible in use and small in size, so that students can effectively learn the working principle of the device before carrying out operation simulation of real equipment, and the relation between the working state and the structural characteristics is effectively learned, so that the teaching quality is improved.
Drawings
FIG. 1 is a schematic diagram of a connection mode of a small refrigeration device real operation system;
fig. 2 is a side view of a compact refrigeration unit operating system
Fig. 3 is a cross-sectional view of a compact refrigeration unit operating system
FIG. 4 is a schematic diagram of the mounting frame structure of the compact refrigeration unit real operation system;
FIG. 5 is an oblique view of the support structure of the compact refrigeration unit operating system;
wherein the reference numerals include:
the system comprises a table 1, a mounting frame 1a, a power distribution cabinet 11, a horizontal object placing plate 110, a mounting panel 12, a cold chamber 2, a refrigeration condenser 20, a heater 21, a temperature sensor 22, a heat preservation shell 23, a raft 3, a temperature controller 30, a pressure controller 31, a front gas-liquid separator 4, a compressor 5, a rear gas-liquid separator 6, a heat dissipation condenser 7, a liquid storage 8, a drying filter 9, a refrigeration simulation loop L1, a pretreatment loop L2, a non-pretreatment loop L3, a self-feedback control cooling loop L4, a manual control cooling loop L5, a low pressure reflux loop L6, a low pressure side pressure gauge P1, a high pressure side pressure gauge P2, a refrigeration pressure gauge P3, a front cooling control valve K1, an electromagnetic control valve K2, a first disassembly auxiliary valve K3, a thermal expansion valve K4, a second disassembly auxiliary valve K5, a middle cooling control valve K6, a third disassembly auxiliary valve K7, a fourth disassembly auxiliary valve K8, a high pressure output valve K9, a low pressure reflux control valve K10, a rear cooling control valve K11, a fifth auxiliary valve K12, a compression molding valve K1, a filling port K13, a high pressure side pressure gauge K2, a compression joint K13, a compression joint J, a compression joint K1 and a compression joint 13.
Detailed Description
The present utility model will be described in detail with reference to specific examples.
The small-sized refrigerating device practical operation system is mainly used for teaching simulation of the contents such as the working principle, the working state, the fault state simulation, the structure replacement maintenance simulation, the fault simulation test and the like of the refrigerating systems of various large-sized equipment.
The main structure is shown in fig. 1-5, and comprises an actual console and a refrigeration actual operation assembly arranged on the actual console; the real operation platform comprises: table 1, cold room 2, raft 3;
the table 1 comprises a mounting frame 1a, a power distribution cabinet 11 arranged on the front side of the mounting frame 1a, and a mounting panel 12 arranged on the top of the mounting frame 1 a; the cold room 2 is arranged at the lower side of the installation panel 12, and the raft 3 is erected between the installation panel 12 and the power distribution cabinet 11;
the refrigeration real operation subassembly includes: a temperature controller 30, a low-pressure side pressure gauge P1, a high-pressure side pressure gauge P2, a pressure controller 31, a front cooling control valve K1, a refrigeration pressure gauge P3, an electromagnetic control valve K2, a thermal expansion valve K4, a middle cooling control valve K6 and a feedback control valve K15 which are arranged on the raft 3; the front gas-liquid separator 4, the compressor 5, the high-pressure output valve K9, the low-pressure backflow control valve K10, the rear cooling control valve K11, the rear gas-liquid separator 6, the heat dissipation condenser 7, the liquid reservoir 8, the drying filter 9 and the bypass control valve K14 are arranged on the mounting panel 12; a refrigeration condenser 20, a heater 21, and a temperature sensor 22 provided in the cold room 2;
the output of the compressor 5 is connected to a liquid reservoir 8 through a high-pressure output valve K9, a rear gas-liquid separator 6 and a heat dissipation condenser 7 in sequence to form a refrigeration simulation loop L1;
the output of the liquid reservoir 8 is led out of a pretreatment branch L2 and a non-pretreatment branch L3 through a drying filter 9 and a bypass control valve K14 respectively, and the output of the two branches is connected to a front cooling control valve K1;
the output of the front cooling control valve K1 is divided into two paths, one path forms a self-feedback control cooling branch L4 through an electromagnetic control valve K2 and a thermal expansion valve K4, the other path forms a manual control cooling branch L5 through a middle cooling control valve K6, and the two branches form a low-pressure reflux loop L6 through a merging rear cooling control valve K11, a refrigeration condenser 20, a low-pressure reflux control valve K10 and a front gas-liquid separator 4 and finally return to the compressor; the temperature sensing end of the thermal expansion valve K4 is positioned at the output end of the refrigeration condenser 20;
the low-side pressure gauge P1 is used for measuring the input pressure of the compressor, the pressure controller 31 is used for balancing the air pressure at two ends of the compressor, the high-side pressure gauge P2 is used for measuring the output pressure of the compressor, and the refrigeration pressure gauge P3 is used for measuring the output pressure of the front cooling control valve K1.
Further, for making the student can carry out the simulation maintenance and the change of all kinds of valve structures that need to maintain safely, be convenient for simultaneously simulate out different fault conditions, still including replacing simulation auxiliary structure in this embodiment, including expansion valve replacement simulation auxiliary valve group, low pressure backward flow rush repair simulation auxiliary valve group, filter replacement simulation auxiliary valve group, wherein:
the expansion valve replacement simulation auxiliary valve group comprises a first disassembly and replacement auxiliary valve K3 and a second disassembly and replacement auxiliary valve K5 which are arranged on the raft 3, and the first disassembly and replacement auxiliary valve K3 and the second disassembly and replacement auxiliary valve K5 are connected in series into the self-feedback control cooling branch L4 and are positioned on the front side and the rear side of the thermal expansion valve K4;
the low-pressure backflow rush-repair simulation auxiliary valve group comprises a third dismantling auxiliary valve K7 and a fourth dismantling auxiliary valve K8 which are arranged on the raft 3, and the third dismantling auxiliary valve K7 and the fourth dismantling auxiliary valve K8 are connected into a low-pressure backflow loop L6 in series and are positioned between a low-pressure backflow control valve K10 and the front gas-liquid separator 4;
the filter replacement simulation auxiliary valve group comprises a fifth replacement auxiliary valve K12 and a sixth replacement auxiliary valve K13 which are arranged on the installation panel 12; the fifth and sixth auxiliary valves K12 and K13 are connected in series to the pretreatment branch L2 and are located on the front and rear sides of the drier-filter 9.
Further, in order to control the working state of the system more flexibly, so as to simulate the temporary fault of the system and the system environment in a specific state, a low-pressure analog filling interface J1 is further arranged between the front gas-liquid separator 4 and the compressor 5, and a high-pressure analog filling port J2 is arranged at the rear side of the output port of the liquid reservoir 8;
in the present utility model, the temperature controller 30 is used to control the heater 21 to be started or stopped, and the temperature sensor 22 is used to detect the temperature in the cold room 2.
In order to improve the effect of temperature feedback control and avoid inaccurate simulation data caused by cold energy loss, in the embodiment, the cold room 2 is composed of a heat insulation shell 23, a suspension arm 24 arranged at the top of the inner wall of the heat insulation shell 23, and a refrigeration condenser 20 arranged on the suspension arm 24; the heater 21 is an electric heating plate or an electric heating rod, and the heater 21 is disposed immediately below the refrigeration condenser 20.
For the convenience of students' operation and configuration of various tools, switch board 11 top flushes with raft 3 bottom edge, and switch board 11 top is provided with the level and puts thing board 110, and the switch board inner chamber separates by vertical baffle and forms the control chamber that is used for installing the distribution original paper and is used for depositing the instrument chamber of instrument.
The utility model simplifies and displays the original multi-level refrigerating system with complex structure, is laid on two plate surfaces according to the functional characteristics, is convenient for students to control, maintain and use various valve states, is more visual and operable in the structure of internal connecting pipelines and the like, is convenient for analyzing various pipeline faults and states, and is convenient for the contents of pipe rush repair, maintenance and simulation and the like, and can be matched with various pipe consumables, pipe bending machines, welding machines and the like to realize corresponding teaching contents when in actual use.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (6)

1. The small-sized refrigeration device practical operation system is characterized by comprising a practical operation table and a refrigeration practical operation assembly arranged on the practical operation table;
the real operation platform comprises: a table (1), a cold room (2) and a raft (3);
the table (1) comprises a mounting frame (1 a), a power distribution cabinet (11) arranged on the front side of the mounting frame (1 a), and a mounting panel (12) arranged on the top of the mounting frame (1 a); the cold room (2) is arranged at the lower side of the mounting panel (12), and the raft (3) is vertically arranged between the mounting panel (12) and the power distribution cabinet (11);
the refrigeration real operation subassembly includes: a temperature controller (30), a low-pressure side pressure gauge (P1), a high-pressure side pressure gauge (P2), a pressure controller (31), a front cooling control valve (K1), a refrigeration pressure gauge (P3), an electromagnetic control valve (K2), a thermal expansion valve (K4), a middle cooling control valve (K6) and a feedback control valve (K15) which are arranged on the raft (3); the front gas-liquid separator (4), the compressor (5), the high-pressure output valve (K9), the low-pressure backflow control valve (K10), the rear cooling control valve (K11), the rear gas-liquid separator (6), the heat dissipation condenser (7), the liquid storage device (8), the drying filter (9) and the bypass control valve (K14) are arranged on the installation panel (12); a refrigeration condenser (20), a heater (21) and a temperature sensor (22) which are arranged in the cold room (2);
the output of the compressor (5) is connected to the liquid storage device (8) through the high-pressure output valve (K9), the rear gas-liquid separator (6) and the heat dissipation condenser (7) in sequence to form a refrigeration simulation loop (L1);
the output of the liquid storage device (8) is led out of a pretreatment branch (L2) and a non-pretreatment branch (L3) through a drying filter (9) and a bypass control valve (K14) respectively, and the output of the two branches is connected to a front cold supply control valve (K1);
the output of the front cooling control valve (K1) is divided into two paths, one path forms a self-feedback control cooling branch (L4) through an electromagnetic control valve (K2) and a thermal expansion valve (K4), the other path forms a manual control cooling branch (L5) through a middle cooling control valve (K6), and the two branches form a low-pressure reflux loop (L6) through a merging rear cooling control valve (K11), a refrigeration condenser (20), a low-pressure reflux control valve (K10) and a front gas-liquid separator (4) and finally return to the compressor; the temperature sensing end of the thermal expansion valve (K4) is positioned at the output end of the refrigeration condenser (20);
the low-pressure side pressure gauge (P1) is used for measuring the input pressure of the compressor, the pressure controller (31) is used for balancing the air pressure at two ends of the compressor, the high-pressure side pressure gauge (P2) is used for measuring the output pressure of the compressor, and the refrigeration pressure gauge (P3) is used for measuring the output pressure of the front cooling control valve (K1).
2. The compact refrigeration unit real estate system of claim 1 further including replacement analog auxiliary structures including expansion valve replacement analog auxiliary valve bank, low pressure back flow rush repair analog auxiliary valve bank, filter replacement analog auxiliary valve bank, wherein:
the expansion valve replacement simulation auxiliary valve group comprises a first disassembly and replacement auxiliary valve (K3) and a second disassembly and replacement auxiliary valve (K5) which are arranged on the raft (3), wherein the first disassembly and replacement auxiliary valve (K3) and the second disassembly and replacement auxiliary valve (K5) are connected in series into the self-feedback control cooling branch (L4) and are positioned at the front side and the rear side of the thermal expansion valve (K4);
the low-pressure backflow rush-repair simulation auxiliary valve group comprises a third disassembly and replacement auxiliary valve (K7) and a fourth disassembly and replacement auxiliary valve (K8) which are arranged on the raft (3), and the third disassembly and replacement auxiliary valve (K7) and the fourth disassembly and replacement auxiliary valve (K8) are connected into a low-pressure backflow loop (L6) in series and are positioned between a low-pressure backflow control valve (K10) and the front gas-liquid separator (4);
the filter replacement simulation auxiliary valve group comprises a fifth replacement auxiliary valve (K12) and a sixth replacement auxiliary valve (K13) which are arranged on the installation panel (12); a fifth auxiliary valve (K12) and a sixth auxiliary valve (K13) are connected in series to the pretreatment branch (L2) and are positioned at the front side and the rear side of the drier-filter (9).
3. The real operation system of a small-sized refrigeration apparatus according to claim 1, further comprising a low-pressure analog filling interface (J1) provided between the front gas-liquid separator (4) and the compressor (5), and a high-pressure analog filling port (J2) provided at the rear side of the output port of the accumulator (8).
4. The compact refrigerating apparatus practical operation system according to claim 1, wherein the temperature controller (30) is used for controlling the heater (21) to start or stop, and the temperature sensor (22) is used for detecting the temperature in the cold room (2).
5. The small-sized refrigeration device practical operation system according to claim 1, wherein the cold room (2) is composed of a heat preservation shell (23), a suspension arm (24) arranged at the top of the inner wall of the heat preservation shell (23), and a refrigeration condenser (20) arranged on the suspension arm (24);
the heater (21) is an electric heating plate or an electric heating rod, and the heater (21) is arranged right below the refrigeration condenser (20).
6. The small refrigeration device practical operation system according to claim 1, wherein the top of the power distribution cabinet (11) is flush with the bottom edge of the raft board (3), the top of the power distribution cabinet (11) is provided with a horizontal storage board (110), and the inner cavity of the power distribution cabinet is divided by a vertical partition board to form a control cavity for installing power distribution elements and a tool cavity for storing tools.
CN202320572885.7U 2023-03-20 2023-03-20 Small-sized refrigerating device practical operation system Active CN219872680U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320572885.7U CN219872680U (en) 2023-03-20 2023-03-20 Small-sized refrigerating device practical operation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320572885.7U CN219872680U (en) 2023-03-20 2023-03-20 Small-sized refrigerating device practical operation system

Publications (1)

Publication Number Publication Date
CN219872680U true CN219872680U (en) 2023-10-20

Family

ID=88339532

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320572885.7U Active CN219872680U (en) 2023-03-20 2023-03-20 Small-sized refrigerating device practical operation system

Country Status (1)

Country Link
CN (1) CN219872680U (en)

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