Anti-blocking quick-start throttling refrigerator

Abstract

The utility model provides an anti-blocking quick-start throttling refrigerator which comprises a refrigerator base and a finned tube wound on the refrigerator base, the input end of the finned tube is connected with external air supply equipment through an air inlet connector, and the output end of the finned tube is connected with a throttling block. And the throttling block is provided with a maintenance port communicated with the gas path. High-pressure gas introduced into the finned tube is filtered through the porous material filter in the gas inlet connector, impurities can be effectively prevented from being introduced into an external gas source, and meanwhile adverse effects on gas flow cannot be caused. Due to the fact that the maintenance opening is formed in the throttling block, when a gas channel or a throttling hole in the finned tube is blocked, external high-pressure gas or liquid can be introduced to remove impurities, and the pipeline is dredged.

Description

Technical Field

[0001] The utility model relates to a quick-start throttling refrigerator, in particular to an anti-blocking quick-start throttling refrigerator, belonging to the technical field of refrigeration equipment design and manufacturing. Background Art

[0002] Quick-start throttling refrigerators are usually non-self-adjusting throttling refrigerators, which use a large working fluid flow rate to achieve rapid liquefaction to reach the starting temperature. However, quick-start throttling refrigerators do not adopt anti-clogging manufacturing processes and structural designs, and there may be a risk of impurity blockage during the repeated operation of the refrigerator. Once the throttling refrigerator is blocked, it will seriously affect the refrigeration effect and even cause equipment damage, thereby causing irreparable losses to the user. The main reason for the blockage of the quick-start throttling refrigerator is the tiny solid impurities generated when welding the fin tube heat exchanger or the impurities introduced by the external gas source that block the gas passage. These impurities are affected by the small flow area of ​​the throttling block, and the gas pipeline cannot be cleaned with a detergent. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] In order to solve the problem that the existing quick-start throttling refrigerator is prone to gas passage blockage, which affects the refrigeration effect and even damages the equipment, the utility model provides a quick-start throttling refrigerator that is anti-blocking.

[0004] The utility model is completed through the following technical solutions: a kind of anti-clogging quick-start throttling refrigerator, including a refrigerator base, a fin tube wound on the refrigerator base, the fin tube input end is connected to the external air supply equipment through an air inlet joint, and the output end is connected to the throttling block, which is characterized in that a filter component is provided in the air inlet joint, and a maintenance port connected to the air path is provided on the throttling block, so that the high-pressure gas entering the fin tube can be filtered through the filter component in the air inlet joint, and impurities in the external air source can be effectively prevented from being introduced into the fin tube to cause blockage, and then through the maintenance port provided on the throttling block, when the gas passage in the fin tube or the throttling block is blocked, high-pressure gas or liquid is introduced from the outside to flush it, so as to remove impurities and clear the gas passage.

[0005] The air inlet joint is arranged at the rear part of the refrigerator base, and is provided with a socket connecting the external air supply pipe and the fin tube. The socket is composed of a large-diameter outer section, a small-diameter inner section and a tapered section connecting the outer section and the inner section. The outer section of the socket is connected to the external air supply pipe, and the inner section is connected to the input end of the fin tube through a connecting hole arranged on the side wall of the air inlet joint. An annular groove is provided on the inner wall of the connection between the inner section of the socket and the tapered section, and a filter assembly is arranged in the annular groove so that the incoming high-pressure gas can be filtered through the filter assembly in the socket.

[0006] The filter assembly includes a filter plate arranged in the annular groove and matched with the inner section of the plug hole, and a clamping ring arranged outside the filter plate and matched with the annular groove, wherein: the filter plate is provided with a plurality of through holes, each with a pore size of ≤15μm, the filter plate is set to be cylindrical and adapted to the shape of the annular groove, a vent hole is provided at the center of the clamping ring, the outer wall of the clamping ring and the inner wall of the annular groove are screwed or plugged into each other, so that impurities in the gas can be effectively filtered through the porous filter plate without affecting the gas flow, and the screwed or plugged clamping ring can prevent the filter plate from falling out and losing its filtering effect.

[0007] The throttling block is arranged at the head of the refrigerator base, and a throttling hole is arranged at the front end of the throttling block. A cavity connected to the throttling hole is arranged inside the throttling block. The output end of the fin tube is connected to one end of the cavity. A maintenance port is arranged at the other end of the cavity, and a sealing bolt threadedly connected to the maintenance port is provided on the maintenance port, so that when the gas passage is blocked, the sealing bolt is removed and the high-pressure cleaning pipe is connected to the jack of the air inlet joint, and the throttling hole and the entire pipeline are cleaned and dredged by high-pressure gas or high-pressure liquid, and the blockage is discharged from the maintenance port.

[0008] The utility model has the following advantages and effects: adopting the above scheme, the high-pressure gas entering the finned tube is filtered through the porous material filter in the air inlet joint, which can effectively avoid the introduction of impurities from the external gas source and will not cause adverse effects on the gas flow. By providing a maintenance port on the throttle block, when the gas passage or throttle hole in the finned tube is blocked, external high-pressure gas or liquid can be introduced to remove impurities and dredge the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a cross-sectional view of the utility model;

[0010] Figure 2 This is a cross-sectional view of the air intake connector of the utility model;

[0011] Figure 3 It is a cross-sectional view of the throttling block of the utility model. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0013] The utility model provides an anti-clogging quick-start throttling refrigerator, comprising a refrigerator base 3, a fin tube 4 wound on the refrigerator base 3, the input end of the fin tube 4 is connected to an external gas supply device through an air inlet joint 5, and the output end is connected to a throttling block 1, wherein: a filter assembly 6 is arranged in the air inlet joint 5, and a maintenance port 2 connected to the gas path is arranged on the throttling block 1, so that the incoming high-pressure gas can be filtered through the filter assembly 6 in the air inlet joint 5, effectively preventing impurities in the external gas source from being introduced into the fin tube 4 to cause blockage, and then through the maintenance port 2 arranged on the throttling block 1, when the gas path in the fin tube 4 or the throttling block 1 is blocked, high-pressure gas or liquid is introduced from the outside to flush, so as to remove impurities and clear the gas path;

[0014] The air inlet connector 5 is arranged at the rear of the refrigerator base 3, and is provided with a socket 7 for connecting the external air supply pipe and the fin tube 4. The socket 7 is composed of a large-diameter outer section 12, a small-diameter inner section 8, and a tapered section 11 connecting the outer section 12 and the inner section 8. The outer section 12 of the socket 7 is connected to the external air supply pipe, and the inner section 8 is connected to the input end of the fin tube 4 through a connecting hole 9 arranged on the side wall of the air inlet connector 5. An annular groove 10 is provided on the inner wall of the connection between the inner section 8 of the socket 7 and the tapered section 11. The filter assembly 6 is arranged in the annular groove 10, so as to filter the entering high-pressure gas through the filter assembly 6 in the socket 7;

[0015] The filter assembly 6 includes a filter sheet 14 disposed in the annular groove 10 and matched with the inner section 8 of the insertion hole 7, and a clamping ring 13 disposed outside the filter sheet 14 and matched with the annular groove 10, wherein: a plurality of through holes are provided on the filter sheet 14, each with a pore size of ≤15 μm, the filter sheet 14 is set to be cylindrical and adapted to the shape of the annular groove 10, a vent hole is provided at the center of the clamping ring 13, and the outer wall of the clamping ring 13 and the inner wall of the annular groove 10 are screwed to each other, so that impurities in the gas are effectively filtered through the porous filter sheet 14 without affecting the gas flow, and the screwed clamping ring 13 prevents the filter sheet 14 from coming out and losing the filtering effect;

[0016] The throttling block 1 is arranged at the head of the refrigerator base 3, and a throttling hole 17 is arranged on the throttling block 1. A cavity 16 connected to the throttling hole 17 is arranged inside the throttling block 1, and the output end of the fin tube 4 is connected to the lower end of the cavity 16. The maintenance port 2 is arranged at the upper end of the cavity 16, and a sealing bolt 15 screwed thereto is provided on the maintenance port 2, so that when the gas passage is blocked, the sealing bolt 15 is removed, and the high-pressure cleaning pipe is connected to the outer section 12 of the socket 7 of the air inlet joint 5 at the same time, and the throttling hole 17 and the entire gas passage are cleaned and dredged by high-pressure gas or high-pressure liquid, and the blockage is discharged from the maintenance port 2.

[0017] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0018] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-clogging quick-start throttling refrigerator, comprising a refrigerator base, a fin tube wound around the refrigerator base, the input end of the fin tube is connected to an external air supply device through an air inlet joint, and the output end is connected to a throttling block, characterized in that A filter assembly is arranged in the air inlet joint, and a maintenance port connected with the air path is arranged on the throttle block.

2. The anti-clogging quick-start throttling refrigerator according to claim 1 is characterized in that The air inlet joint is arranged at the rear part of the refrigerator base, and is provided with a socket connecting the external air supply pipe and the fin tube. The socket is composed of a large-diameter outer section, a small-diameter inner section and a tapered section connecting the outer section and the inner section. The outer section of the socket is connected to the external air supply pipe, and the inner section is connected to the input end of the fin tube through a connecting hole arranged on the side wall of the air inlet joint. An annular groove is opened on the inner wall of the connection between the inner section of the socket and the tapered section, and the filter assembly is arranged in the annular groove.

3. The anti-clogging quick-start throttling refrigerator according to claim 1 is characterized in that The filter assembly includes a filter plate arranged in the annular groove and matched with the inner section of the plug hole, and a clamping ring arranged outside the filter plate and matched with the annular groove, wherein: a plurality of through holes are arranged on the filter plate, each with a hole diameter of ≤15 μm, the filter plate is arranged in a cylindrical shape adapted to the shape of the annular groove, a vent hole is arranged in the center of the clamping ring, and the outer wall of the clamping ring and the inner wall of the annular groove are screwed together or plugged together.

4. The anti-clogging quick-start throttling refrigerator according to claim 1, characterized in that The throttling block is arranged at the head of the refrigerator base, a throttling hole is arranged at the front end of the throttling block, a cavity connected to the throttling hole is arranged inside the throttling block, the output end of the finned tube is connected to one end of the cavity, a maintenance port is arranged at the other end of the cavity, and a sealing bolt threadedly connected to the maintenance port is arranged on the maintenance port.

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