A water chiller condenser visual inspection end cover

By designing a visual inspection end cover on the condenser of the chiller unit, and equipping it with a tempered glass sight glass and a scraper, the problem of difficult internal inspection of the condenser is solved, enabling convenient internal observation and cleaning, and improving the operational reliability and efficiency of the equipment.

CN224552135UActive Publication Date: 2026-07-24INST OF MEDICAL BIOLOGY CHINESE ACAD OF MEDICAL SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INST OF MEDICAL BIOLOGY CHINESE ACAD OF MEDICAL SCI
Filing Date
2025-08-13
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The lack of visible end caps or inspection mirrors in the condensers of existing chiller units makes it difficult to inspect the internal structure, affecting heat exchange efficiency and potentially causing equipment damage.

Method used

A visual inspection end cover for the condenser of a chiller unit has been designed, equipped with a tempered glass sight glass and a soft scraper. The internal condition can be observed through the observation port, and the scraper can be driven by a hand crank to remove impurities. An illumination component is also provided to ensure a clear view.

Benefits of technology

It enables convenient inspection and cleaning of the condenser interior, avoiding equipment damage caused by impurities and improving heat exchange efficiency and equipment safety.

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Abstract

The utility model relates to the technical field of condenser discloses a water chilling unit condenser visible inspection end cover, including the cover body of layout in the condenser end, is equipped with the observation port for observing the inside of condenser on the cover body, is equipped with the sight glass made of toughened glass on the observation port, and the sight glass is connected with the cover body through the flange, and forms sealed closure to the observation port. Through being equipped with the observation port on the cover body, being equipped with the sight glass on the observation port, whether the welding slag, foreign matter in the condenser after the installation is checked, and the structure situation of water chilling unit condenser in normal operation, the scale removal situation and water quality condition etc. during chemical cleaning are observed, to avoid the damage of water chilling unit.
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Description

Technical Field

[0001] This utility model relates to the technical field of condensers, and more specifically, to a visual inspection end cover for a chiller condenser. Background Technology

[0002] In the refrigeration system of a chiller unit, the condenser, as the core heat exchange equipment, plays a crucial role in cooling and condensing the high-temperature, high-pressure refrigerant vapor discharged from the compressor into a liquid state. The heat exchange copper tubes of the condenser, as important heat exchange components, often experience reduced heat exchange efficiency due to scaling, welding slag, foreign matter, or other impurities. This increases the energy consumption of the chiller unit, and in severe cases, impurities can even cause damage to the heat exchange tubes, thereby damaging the unit's compressor and causing irreparable and significant losses to the enterprise.

[0003] In existing technologies, chiller condensers typically lack visible end caps or inspection mirrors, making it difficult to check for welding slag or foreign objects inside the condenser after installation, as well as to observe the condenser's structure, scale removal during chemical cleaning, and water quality during normal operation. Utility Model Content

[0004] The purpose of this utility model is to provide a visual inspection end cover for the condenser of a chiller unit, which aims to solve the problem that it is not convenient to inspect the internal structure of the condenser of a chiller unit in the prior art.

[0005] This utility model is implemented as follows: a visual inspection end cover for a chiller condenser includes a cover body disposed at the end of the condenser, the cover body having an observation port for observing the inside of the condenser, the observation port having a sight glass made of tempered glass, the sight glass being connected to the cover body via a flange and forming a sealed seal for the observation port.

[0006] Furthermore, the cover is provided with an outwardly protruding mounting part, and the end of the mounting part is provided with the observation port. The outer peripheral edge of the end of the mounting part is fixedly connected to the flange. The sight glass is clamped between the flange and the end of the mounting part and seals the observation port.

[0007] Furthermore, the viewing mirror has an inwardly facing inner viewing surface, on which a swingable soft scraper is provided. The soft scraper is made of silicone, and the outer end of the soft scraper has a strip-shaped scraping surface, which abuts against the inner viewing surface.

[0008] Furthermore, a short tube is inserted through the sight glass, the short tube passing laterally through the sight glass, the front part of the short tube forming an inner section inside the condenser, the inner section being connected to the inner end of the soft scraper, and the rear part of the short tube forming an outer section outside the condenser, the outer section having a hand crank for gripping. By swinging the hand crank, the soft scraper blade is driven to swing, causing the strip-shaped scraping surface to sweep across the inner viewing surface.

[0009] Furthermore, the sight glass is provided with a transverse through hole, the middle part of the short tube passes through the through hole transversely, and a sealing sleeve is fitted on the outer periphery of the middle part of the short tube, and the sealing sleeve is clamped and fixed.

[0010] Furthermore, the through hole is located at the center of the sight glass.

[0011] Furthermore, an illumination assembly is provided on the outer periphery of the flange. The illumination assembly includes an outwardly protruding support frame and a light-emitting element. The inner end of the support frame is connected to the flange, and the light-emitting element is fixedly connected to the outer end of the support frame. The light-emitting element emits light toward the sight glass.

[0012] Furthermore, the end of the support frame is provided with an adjustable clamp, and the light-emitting body is fixed inside the adjustable clamp.

[0013] Furthermore, the light-emitting body includes a cylindrical body, a searchlight is provided at the front end of the cylindrical body, and an outwardly protruding connecting plate is provided on the outer periphery of the cylindrical body. The connecting plate is provided with a hinge hole, and the connecting plate is hinged to the outer end of the support frame through the hinge hole.

[0014] Furthermore, the inner section is provided with a downwardly recessed mounting groove, the end of which penetrates the end of the inner section to form an insertion port, and the lower part of the soft scraper is inserted into the mounting groove through the insertion port; the lower part of the mounting groove forms a fixing section adapted to the thickness of the soft scraper, and the upper part of the mounting groove forms a flared section, the diameter of which gradually increases from bottom to top.

[0015] Compared with the prior art, the present invention provides a visual inspection end cover for the condenser of a chiller unit. By providing an observation port on the cover and a sight glass on the observation port, it is convenient to check whether there is welding slag or foreign matter in the condenser after installation, as well as to observe the structure of the chiller unit condenser during normal operation, the scale removal during chemical cleaning, and the water quality, so as to avoid damage to the chiller unit. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a visual inspection end cover for a chiller condenser provided by this utility model; Figure 2 This utility model provides Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the structure of the lighting component provided by this utility model; Figure 4This is a cross-sectional schematic diagram of the internal segment provided by this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] Reference Figure 1-4 The image shown is a preferred embodiment of the present invention.

[0021] The present invention provides a visual inspection end cover for a chiller condenser, including a cover body disposed at the end of the condenser, an observation port for observing the inside of the condenser on the cover body, a sight glass 200 made of tempered glass on the observation port, the sight glass 200 being connected to the cover body through a flange 300 and forming a sealed seal for the observation port.

[0022] The above-mentioned visual inspection end cover for the condenser of a chiller unit has an observation port on the cover body and a sight glass 200 on the observation port. This facilitates the inspection of whether there is welding slag or foreign matter in the condenser after installation, as well as the observation of the structure of the chiller unit condenser during normal operation, the scale removal during chemical cleaning, and the water quality, so as to avoid damage to the chiller unit.

[0023] Reference Figure 1 As shown, one end of the chiller unit's condenser is equipped with an inlet and an outlet. Together with a butterfly valve and a flexible joint, they form a cooling water circulation path. The inlet allows low-temperature cooling water to enter, and after heat exchange, it is discharged from the outlet. The butterfly valve regulates the water flow and the flow rate, while the flexible joint provides buffering and shock absorption. The drain outlet is used to periodically remove the dirt and impurities deposited inside, maintaining the cleanliness of the equipment and its heat exchange efficiency. The heat exchange copper tube is the core heat exchange component. High-temperature and high-pressure gaseous refrigerant enters from the inlet, exchanges heat with the cooling water inside the tube, releases heat and liquefies, and is discharged through the low-temperature and low-pressure liquefied refrigerant outlet, completing the key link of the refrigeration cycle. During the above process, the internal refrigerant flow, the structure of the chiller unit's condenser, the scale removal during chemical cleaning, and the water quality can be observed through a sight glass 200 made of tempered glass, so as to avoid damage to the chiller unit.

[0024] Specifically, the cover has an outwardly protruding mounting portion 100, and an observation port is provided at the end of the mounting portion 100. The outer peripheral edge of the end of the mounting portion 100 is fixedly connected to the flange 300. The sight glass 200 is clamped between the flange 300 and the end of the mounting portion 100, and the observation port is sealed. In this way, the mounting portion 100 and the flange 300 are designed to facilitate the installation of the sight glass 200.

[0025] In a preferred embodiment, the sight glass 200 has an inwardly facing inner viewing surface, on which a movable soft scraper 400 is provided. The soft scraper 400 is made of silicone, and its outer end has a strip-shaped scraping surface that abuts against the inner viewing surface. In this way, by scraping the inner viewing surface with the soft scraper 400, moisture, oil, dust, and other impurities adhering to the inner viewing surface can be effectively removed, ensuring the clarity of observation of the sight glass 200.

[0026] The soft scraper 400 is bent and abuts against the inner viewing surface to ensure stable contact.

[0027] Specifically, a short tube 500 is inserted through the sight glass 200. The short tube 500 extends laterally through the sight glass 200. The front part of the short tube 500 forms an inner section inside the condenser. The inner section is connected to the inner end of the soft scraper 400. The rear part of the short tube 500 forms an outer section outside the condenser. The outer section has a hand crank 510 for holding. By swinging the hand crank 510, the soft scraper 400 is driven to swing, causing the strip-shaped scraping surface to sweep across the inner viewing surface. In this way, scraping the inner viewing surface can be achieved simply by swinging the hand crank 510. The structure is simple, the operation is easy, and it is very convenient.

[0028] The sight glass 200 has a transverse through hole, through which the middle part of the short tube 500 passes. A sealing sleeve 520 is fitted on the outer periphery of the middle part of the short tube 500, and the sealing sleeve 520 is clamped and fixed. In this way, a seal is achieved without affecting the swing of the short tube 500.

[0029] Among them, the sealing sleeve 520 is made of oil-resistant nitrile rubber, and its inner diameter is 20mm, which is closely matched with the outer diameter of the short tube 500. The outer diameter is 2mm larger than the diameter of the through hole.

[0030] Specifically, the through-hole is located at the center of the sight glass 200. This ensures that the scratching area is maximized for optimal results.

[0031] In a preferred embodiment, an illumination assembly is provided on the outer periphery of the flange 300. The illumination assembly includes an outwardly protruding support frame 600 and a light-emitting element 700. The inner end of the support frame 600 is connected to the flange 300, and the light-emitting element 700 is fixedly connected to the outer end of the support frame 600. The light-emitting element 700 emits light towards the viewing mirror 200. In this way, the outward extension of the support frame 600 provides space for the light-emitting element 700 and enables the connection of the light-emitting element 700.

[0032] In this embodiment, an adjustable clamp 610 is provided at the end of the support frame 600, and a light-emitting element 700 is fixed inside the adjustable clamp 610. In this way, the design of the adjustable clamp 610 ensures that the light-emitting element 700 is fixedly clamped.

[0033] The adjustable clamp 610 can be two symmetrical arc-shaped claws, with anti-slip rubber pads on the inner side of the arc-shaped claws.

[0034] In this embodiment, the light-emitting body 700 includes a cylindrical body with a searchlight at its front end. A connecting plate 710 protruding outwards is provided on the outer periphery of the cylindrical body. The connecting plate 710 has a hinge hole, and is hinged to the outer end of the support frame 600 through the hinge hole. This allows the cylindrical body to swing up and down more flexibly.

[0035] In a preferred embodiment, the inner section is provided with a downwardly recessed mounting groove 501. The end of the mounting groove 501 passes through the end of the inner section to form an insertion port. The lower part of the soft scraper 400 is inserted into the mounting groove 501 through the insertion port. The lower part of the mounting groove 501 forms a fixing section that is adapted to the thickness of the soft scraper 400. The upper part of the mounting groove 501 forms a flared section. Along the direction from bottom to top, the diameter of the flared section gradually increases.

[0036] First, the design of the fixed section ensures effective fixation of the bottom of the soft scraper 400. Next, the flared section provides bending space for the soft scraper 400, preventing it from bending and deforming at large angles when oscillating with high acceleration. The bottom of the flared section transitions to the top of the fixed section with a rounded arc; the initial width is the same as the fixed section, while the top width is increased to 2 to 3 times that of the fixed section.

[0037] The inner wall of the fixed section is provided with transverse anti-slip teeth.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A visual inspection end cover for a chiller condenser, characterized in that, Includes a cover installed at the end of the condenser, the cover having an observation port for observing the inside of the condenser, the observation port having a sight glass made of tempered glass, the sight glass being connected to the cover via a flange and forming a sealed seal for the observation port; The viewing mirror has an inwardly facing inner viewing surface, on which a swingable soft scraper is provided. The soft scraper is made of silicone, and the outer end of the soft scraper has a strip-shaped scraping surface, which abuts against the inner viewing surface.

2. The visual inspection end cover for a chiller condenser as described in claim 1, characterized in that, The cover has an outwardly protruding mounting part, and the end of the mounting part has an observation port. The outer peripheral edge of the end of the mounting part is fixedly connected to the flange. The sight glass is clamped between the flange and the end of the mounting part and seals the observation port.

3. A visual inspection end cover for a chiller condenser as described in claim 1, characterized in that, A short tube is inserted through the sight glass, the short tube passing through the sight glass laterally. The front part of the short tube forms an inner section inside the condenser, the inner section being connected to the inner end of the soft scraper. The rear part of the short tube forms an outer section outside the condenser, the outer section having a hand crank for gripping. By swinging the hand crank, the soft scraper blade is driven to swing, causing the strip-shaped scraping surface to sweep across the inner viewing surface.

4. A visual inspection end cover for a chiller condenser as described in claim 3, characterized in that, The sight glass has a transverse through hole, the middle part of the short tube passes through the through hole, and a sealing sleeve is fitted on the outer periphery of the middle part of the short tube, and the sealing sleeve is clamped and fixed.

5. A visual inspection end cover for a chiller condenser as described in claim 4, characterized in that, The through hole is located at the center of the sight glass.

6. A visual inspection end cover for a chiller condenser as described in claim 1, characterized in that, The flange is provided with an illumination component, which includes an outwardly protruding support frame and a light-emitting element. The inner end of the support frame is connected to the flange, and the light-emitting element is fixedly connected to the outer end of the support frame. The light-emitting element emits light toward the sight glass.

7. A visual inspection end cover for a chiller condenser as described in claim 6, characterized in that, The support frame is provided with an adjustable clamp at its end, and the light-emitting body is fixed inside the adjustable clamp.

8. A visual inspection end cover for a chiller condenser as described in claim 6, characterized in that, The light-emitting body includes a cylindrical body, a searchlight is provided at the front end of the cylindrical body, and an outwardly protruding connecting plate is provided on the outer periphery of the cylindrical body. The connecting plate is provided with a hinge hole, and the connecting plate is hinged to the outer end of the support frame through the hinge hole.

9. A visual inspection end cover for a chiller condenser as described in any one of claims 3 to 5, characterized in that, The inner section is provided with a downwardly recessed mounting groove. The end of the mounting groove passes through the end of the inner section to form an insertion port. The lower part of the soft scraper passes through the insertion port into the mounting groove. The lower part of the mounting groove forms a fixing section adapted to the thickness of the soft scraper. The upper part of the mounting groove forms a flared section. The diameter of the flared section gradually increases from bottom to top.