A high-efficiency purification and deturbidity removal device for ethylene glycol as a refrigerant

By combining the decolorization vessel and the stirring mechanism, the problems of color change and impurity accumulation of the refrigerant ethylene glycol during long-term operation were solved, achieving efficient purification of the refrigerant and improvement of heat transfer efficiency.

CN224573358UActive Publication Date: 2026-07-31NINGXIA UNISPLENDOUR TIANHUA METHIONINE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA UNISPLENDOUR TIANHUA METHIONINE CO LTD
Filing Date
2025-07-25
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In existing technologies, ethylene glycol, a refrigerant, undergoes chemical reactions and physical changes during long-term operation, resulting in a yellowing or reddening color, an increase in insoluble substances, a decrease in heat transfer efficiency, an increase in operating costs, and the potential formation of an insulation layer that corrodes equipment.

Method used

By employing a decolorization vessel and a stirring mechanism, and through flocculation reaction, filtration, and stirring processes, components such as sealing blocks, connecting plates, and stirring rods are used to prevent impurities from accumulating in the filter cartridge, thus ensuring the purity of the refrigerant and the heat transfer efficiency.

Benefits of technology

It effectively removes flocculants and impurities from the refrigerant, preventing a decrease in heat transfer efficiency and equipment corrosion, and maintaining the efficient operation of the refrigerant.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of refrigerant treatment technology and discloses a high-efficiency purification and deturbidity removal device for the refrigerant ethylene glycol. It includes a decolorizing kettle, with a conveying pipe inserted into one side of the outer wall of the kettle, and a sealing cap fitted at the top. A filter cartridge is fixedly installed at the bottom of the kettle, and an adjustment mechanism is provided below the filter cartridge. The adjustment mechanism includes a drive motor, which is fixedly installed on the other side of the outer wall of the kettle. A drive rod is fixedly installed at the power output end of the drive motor, and a transmission component is fixedly installed at one end of the drive rod. This utility model, through the cooperation of the sealing block, connecting plate, and mounting plate, can prevent the refrigerant from reacting inside the filter cartridge during the flocculation reaction, thus avoiding impurities that could affect the normal use of the refrigerant during later flow. Simultaneously, the deturbidity removal process prevents the increase of insoluble substances, which could lead to a decrease in heat transfer efficiency and the formation of an insulation layer that results in poor internal heat transfer efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of refrigerant treatment technology, specifically a high-efficiency purification and deturbidity removal device for the refrigerant ethylene glycol. Background Technology

[0002] A refrigerant is an intermediate medium used to transfer cooling capacity in an indirect cooling system; it is also known as a refrigerant or coolant. It does not undergo a phase change itself, but rather circulates within the refrigeration system, transferring the cooling capacity generated by the refrigeration unit to the object being cooled. Simultaneously, its own temperature rises before returning to the refrigeration unit to cool down again, thus achieving a refrigeration cycle.

[0003] The patent specification with announcement number CN222912086U discloses a refrigerant circulation device to prevent volatilization. This utility model uses a solid-gas isolation component that is movably installed on the upper positioning body to float inside the storage tank according to the liquid level inside the storage tank, thereby reducing the contact area between the top surface of the refrigerant and the gas phase inside the storage tank. Then, inert gas is introduced into the storage tank to further reduce the volatilization loss of the refrigerant.

[0004] However, in implementing the relevant technology, the following problems were found in the above-mentioned anti-volatile refrigerant circulation device: Although the existing technology can reduce the volatilization of refrigerant by cooperating with components such as storage tanks, during the entire circulation process, the ethylene glycol inside the refrigerant will undergo chemical reactions and physical changes during long-term operation, resulting in a yellowing or reddening color and an increase in insoluble substances, which leads to a decrease in heat transfer efficiency, an increase in operating costs, and aggravation of equipment corrosion. This can lead to the formation of a heat insulation layer on the heat exchange tube wall due to the accumulation of temperature difference, or possibly poor internal heat transfer efficiency. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem that the ethylene glycol inside the refrigerant will undergo chemical reactions and physical changes during long-term operation, resulting in a yellowing or reddening color and an increase in insoluble substances, thereby leading to a decrease in heat transfer efficiency, an increase in operating costs, and an aggravation of equipment corrosion, the heat exchange tube wall may form a heat insulation layer due to temperature difference accumulation, or there may be problems with poor internal heat transfer efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-efficiency purification and deturbidity removal device for ethylene glycol as a refrigerant includes a decolorizing kettle, a conveying pipe inserted into one side of the outer wall of the decolorizing kettle, and a sealing cap embedded at the top of the decolorizing kettle. A filter cylinder is fixedly installed at the bottom of the interior of the decolorizing kettle, and an adjustment mechanism is provided below the filter cylinder.

[0009] The adjustment mechanism includes a drive motor, which is fixedly installed on the other side of the outer wall of the decolorizing kettle. A drive rod is fixedly installed at the power output end of the drive motor. A transmission component is fixedly installed at one end of the drive rod. A fixed base is embedded in the inner wall of the decolorizing kettle at the position corresponding to the filter cylinder. A fixed plate is fixedly installed inside the fixed base. A limit block is embedded inside the fixed plate. A locking rod is rotatably connected inside the limit block. A sealing block is fixedly installed on the outer wall of one end of the locking rod that protrudes from the limit block.

[0010] As a further improvement of this utility model: a connecting plate is fixedly installed on the top of the sealing block, and an installation plate is fixedly installed on the outer wall of the filter cylinder.

[0011] As a further embodiment of this utility model: the fixing plate and the sealing block form a sliding structure, and the sealing block and the fixing base form a rotating structure.

[0012] As a further improvement of this utility model: the locking rod and the limiting block form a rotating structure, and the limiting block has a circular ring structure.

[0013] As a further improvement of this utility model: the front end of the decolorizing kettle is movably connected to a sealing door plate, and a stirring mechanism is provided on one side of the filter cylinder inside the decolorizing kettle.

[0014] As a further embodiment of this utility model: the stirring mechanism includes a rotary motor, which is fixedly installed on one side of the sealing cover at the top of the decolorizing kettle, and a rotating rod is fixedly installed at the power output end of the rotary motor.

[0015] As a further embodiment of this utility model: a horizontal bar is fixedly installed at one end of the rotating rod, and a vertical bar is fixedly installed on the outer wall of the horizontal bar.

[0016] As a further embodiment of this utility model: a stirring rod is fixedly installed on the outer wall of the vertical rod, and a through rod extends out from the inside of the stirring rod.

[0017] As a further embodiment of this utility model: a contact rod is fixedly installed at one end of the protruding rod, and a scraper is fixedly installed at the end of the contact rod away from the protruding rod.

[0018] As a further embodiment of this utility model: a limiting ring is fixedly installed on the outer wall of the protruding rod at one end of the stirring rod, and a sealing ring is embedded in the outer wall of the limiting ring; a spring is fixedly installed between the protruding rod and the stirring rod.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model, through the cooperation of the sealing block, connecting plate and mounting plate, can prevent the presence of refrigerant inside the filter cartridge during the flocculation reaction process, thus avoiding the presence of impurities during later circulation that would affect the normal use of the refrigerant. At the same time, the turbidity removal process prevents the increase of insoluble substances, which would lead to a decrease in heat transfer efficiency and the formation of an insulation layer that results in poor internal heat transfer efficiency.

[0021] 2. This utility model, through the cooperation of the rotating rod, horizontal rod, vertical rod and stirring rod, can uniformly stir when the flocculant is introduced, allowing the coolant to react fully. In addition, with the cooperation of the through rod, the contact rod and the scraper, the scraper can adhere to and rotate along the filter cylinder during the stirring process. This prevents the flocculent impurities from being affected by the water flow pressure and adsorbing onto the filter cylinder, causing blockage, or from being stuck on the filter cylinder during flocculation filtration, thus affecting the later discharge of the coolant. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency purification and deturbidity removal device for ethylene glycol as a refrigerant.

[0023] Figure 2 This is a schematic diagram of the internal structure of the decolorizing vessel in a high-efficiency purification and deturbidity removal device using ethylene glycol as a coolant.

[0024] Figure 3 A schematic diagram of the fixed base structure of a high-efficiency purification and deturbidity removal device for ethylene glycol as a refrigerant.

[0025] Figure 4 This is a schematic diagram of the connecting plate structure of a high-efficiency purification and deturbidity removal device for ethylene glycol as a refrigerant.

[0026] Figure 5 A schematic diagram of the limiting ring structure in a high-efficiency purification and deturbidity removal device for ethylene glycol as a refrigerant.

[0027] In the diagram: 1. Decolorizing kettle; 2. Conveying pipe; 3. Sealing cover; 4. Filter cylinder; 5. Adjusting mechanism; 501. Drive motor; 502. Drive rod; 503. Transmission assembly; 504. Fixed base; 505. Fixed plate; 506. Limiting block; 507. Locking rod; 508. Sealing block; 509. Connecting plate; 510. Mounting plate; 6. Sealing door panel; 7. Stirring mechanism; 701. Rotating motor; 702. Rotating rod; 703. Horizontal bar; 704. Vertical bar; 705. Stirring rod; 706. Through rod; 707. Contact rod; 708. Scraper; 709. Limiting ring; 710. Sealing ring; 711. Spring. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0031] Example 1:

[0032] Please see Figures 1-4 This is the first embodiment of the present invention.

[0033] This embodiment provides a high-efficiency purification and deturbidity removal device for the refrigerant ethylene glycol, including a decolorizing kettle 1, a conveying pipe 2 inserted into one side of the outer wall of the decolorizing kettle 1, a sealing cap 3 embedded at the top of the decolorizing kettle 1, a filter cylinder 4 fixedly installed at the bottom of the interior of the decolorizing kettle 1, and an adjustment mechanism 5 provided below the filter cylinder 4.

[0034] The adjustment mechanism 5 includes a drive motor 501, which is fixedly installed on the other side of the outer wall of the decolorizing kettle 1. A drive rod 502 is fixedly installed at the power output end of the drive motor 501. A transmission component 503 is fixedly installed at one end of the drive rod 502. A fixed base 504 is embedded in the inner wall of the decolorizing kettle 1 at the position corresponding to the filter cylinder 4. A fixed plate 505 is fixedly installed inside the fixed base 504. A limit block 506 is embedded inside the fixed plate 505. A locking rod 507 is rotatably connected inside the limit block 506. A sealing block 508 is fixedly installed on the outer wall of one end of the locking rod 507.

[0035] Specifically, a connecting plate 509 is fixedly installed on the top of the sealing block 508, and an installation plate 510 is fixedly installed on the outer wall of the filter cartridge 4.

[0036] Furthermore, the filter cartridge 4 is sealed by the connecting plate 509 in conjunction with the mounting plate 510, which prevents flocculation inside the filter cartridge 4 during material fusion and flocculation, thus avoiding excessive impurities inside the refrigerant during subsequent conveying.

[0037] Specifically, the fixed plate 505 and the sealing block 508 form a sliding structure, and the sealing block 508 and the fixed base 504 form a rotating structure.

[0038] Furthermore, through the cooperation of the fixing plate 505 and the sealing block 508, the fixing base 504 can be kept in a sealed state during flocculation, preventing the refrigerant from carrying flocculents and impurities through the flow.

[0039] Specifically, the locking rod 507 and the limiting block 506 form a rotating structure, and the limiting block 506 has a circular ring structure.

[0040] Furthermore, by rotating and engaging the limiting block 506 with the engaging rod 507, the stability of the sealing block 508 during rotation can be improved.

[0041] In use, the drive motor 501 is initially off. The connecting plate 509 and the mounting plate 510 work together to seal the filter cylinder 4. Then, the coolant is introduced into the decolorizing kettle 1 through the conveying pipe 2. Subsequently, flocculants such as ammonia, ferrous sulfate solution, and activated carbon powder can be introduced sequentially through the sealing cover 3 for flocculation and decolorization. After processing, the drive motor 501 drives the drive rod 502, which rotates through the transmission assembly 503 composed of the drive gear and the driven gear. This causes the locking rod 507 to rotate under the locking of the limit block 506, so that the sealing block 508 overlaps with the fixing plate 505. At the same time, the sealing block 508 causes the connecting plate 509 to overlap with the mounting plate 510. The flocculants after the reaction of the coolant are filtered through the filter cylinder 4, and the decolorized coolant flows through the fixed base 504 to the next process.

[0042] In summary, for the decolorization of ethylene glycol in the refrigerant, flocculation is used to remove turbidity. The refrigerant to be treated is introduced into the decolorization kettle 1, and 20% ammonia water is added through the sealing cap 3 to adjust the pH to about 9.5. After stirring evenly, about 0.1% to 1% of 20% ferrous sulfate solution is slowly added until the color turns blackish-green and there is no white suspension. Finally, after stirring for 5 to 20 minutes, 0.1% to 0.5% activated carbon powder is added and stirring is continued for 10 to 30 minutes. Then, up to 0.2% of PAM is added dropwise and stirred evenly before flocculation and turbidity removal. Through the cooperation of the sealing block 508 and the connecting plate 509, the refrigerant inside the filter cylinder 4 can be prevented from reacting during the flocculation reaction, which would lead to impurities in the later flow and affect the normal use of the refrigerant. The turbidity removal operation avoids the increase of insoluble substances, which would lead to a decrease in heat transfer efficiency and the formation of an insulation layer that results in poor internal heat transfer efficiency.

[0043] Example 2:

[0044] Please see Figure 1 , Figure 2 and Figure 5 This is the second embodiment of the present utility model.

[0045] Specifically, a sealing door plate 6 is movably connected to the front end of the decolorizing kettle 1, and a stirring mechanism 7 is provided on one side of the filter cylinder 4 inside the decolorizing kettle 1.

[0046] Furthermore, the sealing door 6, based on the form of a washing machine and a sealing door, can seal the decolorizing kettle 1 while facilitating the opening for unified collection of internal flocculents or impurities.

[0047] Specifically, the stirring mechanism 7 includes a rotary motor 701, which is fixedly installed on one side of the sealing cover 3 at the top of the decolorizing kettle 1, and a rotating rod 702 is fixedly installed at the power output end of the rotary motor 701.

[0048] Furthermore, by rotating the motor 701 to provide stirring power during rotation, uniform stirring can be achieved during the flocculation process.

[0049] Specifically, a horizontal bar 703 is fixedly installed at one end of the rotating rod 702, and a vertical bar 704 is fixedly installed on the outer wall of the horizontal bar 703.

[0050] Furthermore, the crossbar 703 allows the two vertical bars 704 to rotate, enabling thorough mixing.

[0051] Specifically, a stirring rod 705 is fixedly installed on the outer wall of the vertical rod 704, and a through rod 706 extends out of the inside of the stirring rod 705.

[0052] Furthermore, multiple stirring rods 705 are fixed to the outer wall of the vertical rod 704, which can further improve the uniformity of stirring.

[0053] Specifically, an abutment rod 707 is fixedly installed at one end of the protruding rod 706, and a scraper 708 is fixedly installed at the end of the abutment rod 707 away from the protruding rod 706.

[0054] Furthermore, during the stirring process, the scraper 708 rotates in contact with the filter cylinder 4, which can scrape off the adsorbed flocculent impurities and other contaminants, thus preventing blockage and affecting the flow.

[0055] Specifically, a limiting ring 709 is fixedly installed on the outer wall of the protruding rod 706 at one end of the stirring rod 705. A sealing ring 710 is embedded in the outer wall of the limiting ring 709, and a spring 711 is fixedly installed between the protruding rod 706 and the stirring rod 705.

[0056] Furthermore, the elastic extension and contraction of the spring 711 prevents excessive contact, which could lead to excessive friction and affect the stability of the stirring. The sealing ring 710 can improve the sealing performance and prevent the coolant from entering the stirring rod 705 and causing residue.

[0057] In use, when various flocculants are added, the rotating motor 701 works in conjunction with the rotating rod 702 and the horizontal rod 703, which allows the vertical rod 704 to drive the stirring rod 705 to stir evenly. The stirring rod 705 facing the filter cylinder 4 is elastically pushed by the internal spring 711 to push the protruding rod 706, which causes the contact rod 707 to drive the scraper 708 to rotate in contact with the filter cylinder 4, scraping off the adsorbed flocculent impurities to prevent clogging. At the same time, the limiting ring 709 prevents the protruding rod 706 from falling off, and the sealing ring 710 maintains the seal to prevent the coolant from entering the stirring rod 705 and leaving residue.

[0058] In summary, when the refrigerant and flocculants combine, the rotating motor 701 provides the power for uniform stirring, and during the stirring process, the scraper 708 can adhere to and rotate along the filter cylinder 4. This ensures that when the refrigerant is discharged later, the flocculant impurities are affected by the water flow pressure and adsorb onto the filter cylinder 4, causing blockage, or that the filter cylinder 4 is attached during flocculation filtration, affecting the later discharge of the refrigerant.

[0059] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0060] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0061] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-efficiency purification and decontamination device for coolant glycol, comprising: A decolorizing kettle (1) is characterized in that: a conveying pipe (2) is inserted into one side of the outer wall of the decolorizing kettle (1), and a sealing cap (3) is installed at the top of the decolorizing kettle (1); a filter cylinder (4) is fixedly installed at the bottom of the interior of the decolorizing kettle (1), and an adjustment mechanism (5) is provided below the filter cylinder (4); The adjustment mechanism (5) includes a drive motor (501), which is fixedly installed on the other side of the outer wall of the decolorizing kettle (1). A drive rod (502) is fixedly installed at the power output end of the drive motor (501). A transmission component (503) is fixedly installed at one end of the drive rod (502). A fixed base (504) is embedded in the inner wall of the decolorizing kettle (1) at the position corresponding to the filter cylinder (4). A fixed plate (505) is fixedly installed inside the fixed base (504). A limit block (506) is embedded inside the fixed plate (505). A locking rod (507) is rotatably connected inside the limit block (506). A sealing block (508) is fixedly installed on the outer wall of one end of the locking rod (507) that protrudes from the limit block (506).

2. The high-efficiency purification and deturbidity removal device for ethylene glycol as a refrigerant according to claim 1, characterized in that: A connecting plate (509) is fixedly installed on the top of the sealing block (508), and an installation plate (510) is fixedly installed on the outer wall of the filter cylinder (4).

3. The high-efficiency purification and decontamination device for coolant glycol according to claim 1, characterized in that: The fixed plate (505) and the sealing block (508) form a sliding structure, and the sealing block (508) and the fixed base (504) form a rotating structure.

4. The high-efficiency purification and decontamination device for coolant glycol according to claim 1, characterized in that: The locking rod (507) and the limiting block (506) form a rotating structure, and the limiting block (506) has a circular ring structure.

5. The high-efficiency purification and decontamination device for coolant glycol according to claim 1, characterized in that: The front end of the decolorizing kettle (1) is movably connected to a sealing door plate (6), and a stirring mechanism (7) is provided on one side of the filter cylinder (4) inside the decolorizing kettle (1).

6. The high-efficiency purification and deturbidity removal device for ethylene glycol as a refrigerant according to claim 5, characterized in that: The stirring mechanism (7) includes a rotary motor (701), which is fixedly installed on one side of the sealing cover (3) at the top of the decolorizing kettle (1), and a rotating rod (702) is fixedly installed at the power output end of the rotary motor (701).

7. The high-efficiency purification and decontamination device for coolant glycol according to claim 6, characterized in that: A horizontal bar (703) is fixedly installed at one end of the rotating rod (702), and a vertical bar (704) is fixedly installed on the outer wall of the horizontal bar (703).

8. The high-efficiency purification and decontamination device for coolant glycol according to claim 7, characterized in that: A stirring rod (705) is fixedly installed on the outer wall of the vertical rod (704), and a through rod (706) extends through the inside of the stirring rod (705).

9. The high-efficiency purification and decontamination device for coolant glycol according to claim 8, characterized in that: A contact rod (707) is fixedly installed at one end of the through rod (706), and a scraper (708) is fixedly installed at the end of the contact rod (707) away from the through rod (706).

10. The high-efficiency purification and decontamination device for coolant glycol according to claim 8, characterized in that: A limiting ring (709) is fixedly installed on the outer wall of the protruding rod (706) at one end of the stirring rod (705), and a sealing ring (710) is embedded in the outer wall of the limiting ring (709). A spring (711) is fixedly installed between the protruding rod (706) and the stirring rod (705).