Liquid sight glass mounting structure for refrigeration house refrigeration pipeline system

Abstract

The utility model relates to the technical field of refrigeration houses, in particular to a liquid sight glass mounting structure for a refrigeration house refrigeration pipeline system, which is reasonable in structural design, realizes detachable fixed connection of an outer convex pipe and an inner convex pipe by utilizing a fastener, and utilizes the inner side area of the inner convex pipe and the outer convex pipe to jointly clamp a lens and a support ring. The supporting ring can provide flexible support for the lens, prevent the inner side of the lens from being abraded, and guarantee the sealing performance of the inner side area at the same time; the outer side area of the inner convex pipe and the outer convex pipe are used for jointly clamping the sealing ring, so that the sealing performance of the outer side area is guaranteed; the outer side of the lens is protected through the protective cover, the probability of abrasion, dust accumulation and scratching is reduced, observation can be conducted through the lens after the lens is detached, and use is convenient. When the lens is scratched and worn due to long-term use, the split-type design facilitates quick replacement of the lens and facilitates cost reduction during later maintenance.

Description

Technical Field

[0001] This utility model relates to the field of cold storage technology, and in particular to a sight glass installation structure for a cold storage refrigeration piping system. Background Technology

[0002] The main functions of a sight glass in a cold storage refrigeration piping system include the following: 1) Observing refrigerant flow: The sight glass can display the refrigerant flow status in real time, helping to check the unobstructed flow of the pipeline. By observing the bubbles in the sight glass, it can be determined whether the refrigerant charge is sufficient. If there are many bubbles in the sight glass, it indicates that the refrigerant may be insufficient and needs to be replenished. 2) Monitoring the liquid flow in the oil return line: In a cold storage refrigeration system, the sight glass is also used to monitor the liquid flow in the oil return line from the oil separator to the compressor. By observing the flow of lubricating oil in the sight glass, it can be ensured that the lubricating oil returns normally, ensuring the normal operation of the compressor. 3) Assisting in judging the refrigerant charge: During the refrigerant charging process, experienced maintenance personnel can judge whether the refrigerant charge is appropriate by observing the changes in the bubbles in the sight glass. When the number of bubbles gradually decreases, it indicates that the refrigerant charge is close to the ideal state. 4) Check the working condition of the dryer filter: The sight glass is usually installed at the rear end of the dryer filter. By observing the bubbles and color changes in the sight glass, the working condition of the dryer filter can be checked, including whether it is clogged or whether the water vapor content meets the requirements.

[0003] Traditional sight glass installation structures used in cold storage refrigeration piping systems have shortcomings. Their lenses are mostly one-piece designs, which, in practical use, are prone to scratches and wear over long-term use, affecting the observation effect and hindering cost-effective maintenance. Therefore, it is necessary to optimize and improve the traditional sight glass installation structure used in cold storage refrigeration piping systems. Summary of the Invention

[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and provide a sight glass installation structure for cold storage refrigeration piping systems.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A sight glass mounting structure for a cold storage refrigeration piping system includes a valve body, a connecting pipe, an outer convex pipe, an inner convex pipe, a sight glass, a support ring, a sealing ring, fasteners, and a protective cap. The connecting pipes are symmetrically installed at both ends of the valve body. An outwardly protruding outer convex pipe is provided on the upper side of the valve body. An inner convex pipe is inserted into the inner convex pipe. The inner area of ​​the inner convex pipe and the outer convex pipe together clamp the sight glass and a support ring located below the sight glass. The outer area of ​​the inner convex pipe and the outer convex pipe together clamp the sealing ring. The inner convex pipe and the outer convex pipe are fixed together by fasteners. A removable protective cap is snapped onto the exposed end of the inner convex pipe relative to the outer convex pipe.

[0007] Furthermore, in the above-mentioned sight glass installation structure for cold storage refrigeration piping system, the convex tube includes a first tube section, the first tube section has a first groove and a second groove located thereon, the diameter of the second groove is larger than the diameter of the first groove, the bottom end of the second groove has a positioning ring groove that cooperates with the support ring, the side wall of the second groove has a sealing groove that facilitates the installation of the sealing ring, and the side of the second groove has a plurality of stepped holes that cooperate with fasteners along the circumferential direction.

[0008] Furthermore, in the above-mentioned sight glass mounting structure for cold storage refrigeration piping system, the inner convex tube includes a second tube section, the lower part of the inner sidewall of the second tube section is provided with a third groove cavity to facilitate the installation of the lens and support ring, and the outer sidewall of the second tube section is provided with a plurality of threaded holes that cooperate with fasteners along the circumferential direction.

[0009] Furthermore, in the above-mentioned sight glass mounting structure for cold storage refrigeration piping system, the outer diameter of the second pipe section is equal to the diameter of the second groove cavity.

[0010] Furthermore, in the above-mentioned sight glass mounting structure for cold storage refrigeration piping system, the outer diameter of the sight glass and the support ring is equal to the diameter of the third groove cavity, and the inner diameter of the support ring is equal to the inner diameter of the second pipe section.

[0011] Furthermore, in the above-mentioned sight glass mounting structure for cold storage refrigeration piping systems, the support ring is made of oil-resistant rubber material.

[0012] The beneficial effects of this utility model are:

[0013] This utility model features a rational structural design, primarily composed of a valve body, connecting pipe, outer convex pipe, inner convex pipe, lens, support ring, sealing ring, fasteners, and protective cover. These components work in concert, with fasteners enabling a detachable and fixed connection between the outer and inner convex pipes. The inner area of ​​the inner convex pipe and the outer convex pipe together clamp the lens and support ring. The support ring provides flexible support for the lens, preventing wear on the inner side and ensuring the sealing of the inner area. The outer area of ​​the inner convex pipe and the outer convex pipe together clamp the sealing ring, ensuring the sealing of the outer area. The protective cover protects the outer side of the lens, reducing wear, dust accumulation, and scratches. It can be removed for easy observation through the lens. When long-term use causes scratches or other wear on the lens, the modular design facilitates quick lens replacement, reducing maintenance costs in the future.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model with the valve body omitted;

[0018] Figure 3 This is an exploded view of the structure of this utility model with the valve body omitted;

[0019] Figure 4 This is a schematic diagram of the outwardly convex tube in this utility model;

[0020] Figure 5 This is a schematic diagram of the internally convex tube in this utility model;

[0021] In the attached diagram, the components represented by each number are as follows:

[0022] 1-Valve body, 2-Connecting pipe, 3-Outward protruding pipe, 301-First pipe section, 302-First groove, 303-Second groove, 304-Positioning ring groove, 305-Sealing groove, 306-Stepped hole, 4-Inward protruding pipe, 401-Second pipe section, 402-Third groove, 403-Threaded hole, 5-Lens, 6-Support ring, 7-Sealing ring, 8-Fastener, 9-Protective cover. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-5 As shown, this embodiment provides a sight glass mounting structure for a cold storage refrigeration piping system, including a valve body 1, a connecting pipe 2, an outwardly protruding pipe 3, an innerly protruding pipe 4, a sight glass 5, a support ring 6, a sealing ring 7, fasteners 8, and a protective cover 9. Connecting pipes 2 are symmetrically installed at both ends of the valve body 1. An outwardly protruding pipe 3 is provided on the upper side of the valve body 1, and an innerly protruding pipe 4 is inserted into the inside of the outwardly protruding pipe 3. The inner area of ​​the innerly protruding pipe 4 and the outwardly protruding pipe 3 together clamp the sight glass 5 and the support ring 6 located below the sight glass 5. The outer area of ​​the innerly protruding pipe 4 and the outwardly protruding pipe 3 together clamp the sealing ring 7. The innerly protruding pipe 4 and the outwardly protruding pipe 3 are fixed together by fasteners 8. A removable protective cover 9 is snapped onto the exposed end of the innerly protruding pipe 4 relative to the outwardly protruding pipe 3.

[0025] In this embodiment, the protruding tube 3 includes a first tube portion 301. The first tube portion 301 has a first cavity 302 and a second cavity 303 located thereon. The diameter of the second cavity 303 is larger than the diameter of the first cavity 302. The bottom end of the second cavity 303 has a positioning ring groove 304 that mates with the support ring 6. The side wall of the second cavity 303 has a sealing groove 305 that facilitates the installation of the sealing ring 7. The side portion of the second cavity 303 has a plurality of stepped holes 306 along the circumferential direction that mate with the fasteners 8.

[0026] In this embodiment, the inner convex tube 4 includes a second tube portion 401. The lower part of the inner sidewall of the second tube portion 401 is provided with a third groove 402 for easy installation of the lens 5 and the support ring 6. The outer sidewall of the second tube portion 401 is provided with a plurality of threaded holes 403 that cooperate with the fasteners 8 in the circumferential direction.

[0027] In this embodiment, the outer diameter of the second tube 401 is equal to the diameter of the second groove 303.

[0028] In this embodiment, the outer diameter of the lens 5 and the support ring 6 is equal to the diameter of the third groove 402, and the inner diameter of the support ring 6 is equal to the inner diameter of the second tube 401.

[0029] In this embodiment, the support ring 6 is made of oil-resistant rubber material.

[0030] A specific application of this embodiment is as follows: The sight glass mounting structure mainly consists of a valve body 1, a connecting pipe 2, an outer convex pipe 3, an inner convex pipe 4, a lens 5, a support ring 6, a sealing ring 7, fasteners 8, and a protective cover 9. These components work together. Fasteners 8 enable a detachable and fixed connection between the outer and inner convex pipes 3. The inner area of ​​the inner convex pipe 4 and the outer convex pipe 3 together clamp the lens 5 and the support ring 6. The support ring 6 provides flexible support for the lens 5, preventing wear on the inner side of the lens 5 and ensuring the sealing of the inner area. The outer area of ​​the inner convex pipe 4 and the outer convex pipe 3 together clamp the sealing ring 7, ensuring the sealing of the outer area. The protective cover 9 protects the outer side of the lens 5, reducing wear, dust accumulation, and the probability of scratches. After removal, observation can be performed through the lens 5, making it convenient to use. When long-term use causes scratches or other wear on the lens, the split design facilitates quick replacement of the lens 5, reducing costs during later maintenance.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sight glass mounting structure for a cold storage refrigeration piping system, characterized in that, The device includes a valve body, a connecting pipe, an outer protruding pipe, an inner protruding pipe, a lens, a support ring, a sealing ring, fasteners, and a protective cover. The connecting pipes are symmetrically installed at both ends of the valve body. An outer protruding pipe is provided on the upper side of the valve body. An inner protruding pipe is inserted into the inner protruding pipe. The inner area of ​​the inner protruding pipe and the outer protruding pipe together hold the lens and the support ring located below the lens. The outer area of ​​the inner protruding pipe and the outer protruding pipe together hold the sealing ring. The inner protruding pipe and the outer protruding pipe are fixed to each other by fasteners. A removable protective cover is snapped onto the exposed end of the inner protruding pipe relative to the outer protruding pipe.

2. The sight glass mounting structure for a cold storage refrigeration piping system according to claim 1, characterized in that, The protruding tube includes a first tube section, the first tube section having a first groove and a second groove located thereon, the diameter of the second groove being larger than the diameter of the first groove, the bottom end of the second groove having a positioning ring groove that mates with a support ring, the side wall of the second groove having a sealing groove that facilitates the installation of a sealing ring, and the side of the second groove having a plurality of stepped holes circumferentially arranged to mate with fasteners.

3. The sight glass mounting structure for a cold storage refrigeration piping system according to claim 2, characterized in that, The inner convex tube includes a second tube section. The lower part of the inner sidewall of the second tube section is provided with a third groove cavity to facilitate the installation of the lens and the support ring. The outer sidewall of the second tube section is provided with a plurality of threaded holes that cooperate with fasteners in the circumferential direction.

4. The sight glass mounting structure for a cold storage refrigeration piping system according to claim 3, characterized in that, The outer diameter of the second tube is equal to the diameter of the second groove.

5. The sight glass mounting structure for a cold storage refrigeration piping system according to claim 4, characterized in that, The outer diameter of the lens and the support ring is equal to the diameter of the third groove, and the inner diameter of the support ring is equal to the inner diameter of the second tube.

6. The sight glass mounting structure for a cold storage refrigeration piping system according to claim 5, characterized in that, The support ring is made of oil-resistant rubber material.

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