A new type of agent side valve plate isolation net structure

Abstract

The utility model relates to the technical field of agent side heat exchanger, especially, it is a kind of new agent side valve plate isolation net structure, its adjustment structure, more not easy because of impurity accumulation blockage, installation dismounting is convenient, has improved material utilization, reduced raw material cost;Including equipment main body, equipment main body upper end is installation connection position, and equipment main body is installed with multistage filtering component.

Description

Technical Field

[0001] This utility model relates to the technical field of agent-side heat exchangers, and in particular to a novel agent-side valve plate isolation mesh structure. Background Technology

[0002] In automotive air conditioning systems, the microchannel flow path diameter of the refrigerant-side heat exchanger is only 0.5-1.2mm. Its clogging risk is directly related to system reliability. Over 82% of air conditioning system failures originate from impurities clogging EXV, ERV, SOV, etc. Particles ≥15μm can cause expansion valve sticking, and particles ≥30μm can cause abnormal compressor wear. Traditional repairs require disassembling the entire air conditioning system; modern new energy vehicles replace entire modules, resulting in extremely high costs. Electric vehicle heat pump systems operate at pressures up to 10MPa, increasing the impact and destructive force of impurities by 300%. Traditional automotive air duct filters are single-layered with uniform mesh openings, offering poor filtration and interception. Under the rapid flow and impact of refrigerant within the flow path, they are ineffective at intercepting small impurities. Furthermore, traditional air duct filters only intercept in a single row, making them prone to clogging when there are many impurities. This leads to increased flow resistance within the air conditioning pipes. Installation methods are generally outdated, such as welding or gluing, and when installed in high-temperature locations, they are prone to cracking and leakage. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a novel agent-side valve plate isolation mesh structure with an adjustable structure that is less prone to blockage due to impurity accumulation, is easy to install and disassemble, improves material utilization, and reduces raw material costs.

[0004] This utility model discloses a novel refrigerant-side valve plate isolation mesh structure, comprising a main body with an installation and connection position at the upper end. The main body contains multi-stage filtration components. The multi-stage filter combination addresses the problem of poor interception effect by adjusting its structure to make it less prone to clogging due to impurity accumulation. Even with a large amount of internal impurities, it will not affect the flow channel. Installation and disassembly only require removing the refrigerant and unscrewing the screws of the CHIILLER and LCC to remove the heat exchanger filter. This convenient installation and disassembly improves material utilization and reduces raw material costs.

[0005] Preferably, the main body of the equipment is manufactured by casting. Casting can easily realize complex flow channels, chambers, reinforcing ribs, flange connection parts and various irregular structures inside the valve plate, simplifying the process, greatly reducing the complexity of the equipment, eliminating heat treatment, reducing the number of CNC machining positions, and using sealing rings without sealing rings, reducing the number of sealing installation parts, and greatly reducing investment and unit cost.

[0006] Preferably, the multi-stage filtration component includes a first filter screen, a second filter screen, and a third filter screen. The first filter screen, the second filter screen, and the third filter screen are arranged vertically and installed inside the main body of the equipment. The filtration area of ​​the first filter screen, the second filter screen, and the third filter screen gradually increases, with the third filter screen being the main filter screen. The three-stage gradient filter screen combination achieves a 99.93% rejection rate for >10μm impurities while reducing flow resistance by 58.7%, breaking through the contradiction of "high pressure drop - high precision" in traditional filter screens.

[0007] Preferably, the device body has an impurity storage area inside; the impurity storage area can store a few grams of impurities in the inner cavity even when there are many impurities inside, without affecting the flow channel.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: the multi-stage filter combination optimizes the problem of poor interception effect, adjusts its structure to make it less prone to blockage due to impurity accumulation, and will not affect the flow channel even when there are many internal impurities. Installation and disassembly only require removing the refrigerant and unscrewing the screws of CHIILLER and LCC to remove the heat exchanger filter screen. Installation and disassembly are convenient, improving material utilization and reducing raw material costs. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0011] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0012] Figure 4 This is a schematic diagram of the internal structure of this utility model;

[0013] The attached diagram is labeled as follows: 1. Main body of the equipment; 2. First filter screen; 3. Second filter screen; 4. Third filter screen; 5. Impurity storage area. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0015] like Figures 1 to 4As shown, the upper part of the main body 1 is the installation and connection position. Inside the product, the filter screens are installed inside the CHILLER and LCC using interference fit. The first filter screen 2, the second filter screen 3, and the third filter screen 4 are arranged vertically inside the main body 1. The filtration areas of the first filter screen 2, the second filter screen 3, and the third filter screen 4 gradually increase, with the third filter screen 4 being the main filter screen. The main body 1 is equipped with an impurity storage area 5. This three-stage gradient filter combination achieves a 99.93% >10μm impurity rejection rate while reducing flow resistance by 58.7%, breaking through the contradiction of "high pressure drop - high precision" in traditional filters. Through the impurity storage area 5, even when there are many impurities inside, the inner cavity can store a few grams of impurities without affecting the flow channel. Installation and disassembly only require removing the refrigerant and unscrewing the screws of the CHILLER and LCC to remove the heat exchanger filter screen, making installation and disassembly convenient.

[0016] The main body of the equipment is manufactured using casting, which can easily realize complex flow channels, chambers, reinforcing ribs, flange connections, and various irregular structures inside the valve plate. The process is simplified, the equipment complexity is greatly reduced, heat treatment is eliminated, the number of CNC machining operations is reduced, and sealing rings are used, reducing the number of sealing installation components, significantly lowering investment and unit cost. Processing technology: 1. Insert placement: The pre-treated filter screen is accurately placed manually or by an automated robotic arm into the positioning mechanism within the mold. Automation is the trend towards improving efficiency, stability, and safety. 2. Mold closing and clamping: The mold closes, and the clamping mechanism operates, firmly pressing the filter screen into the set position. Parameters are optimized for insert characteristics. 3. Injection speed / pressure: A low to medium injection speed and pressure are used, especially in the initial filling stage, to reduce impact on the filter screen. Later, the pressure can be appropriately increased to ensure filling and shrinkage compensation. 4. Melt temperature: Slightly higher within the material's allowable range to improve melt flowability, facilitating the wrapping of the mesh and flow into the bonding structure. 5. Cooling and mold opening: Sufficient cooling time is ensured to allow the plastic to fully solidify and set. After mold opening, the injection molded part with the embedded filter screen is ejected; VI. Cleaning: Remove sprue material and flash. Pay special attention to cleaning plastic flash or debris that may clog the filter screen holes. This may require specialized tools such as high-pressure air blowers, ultrasonic cleaning, chemical soaking, or tooling; VII. Inspection: Check whether the filter screen is correctly positioned, whether it is deformed, whether the plastic completely covers it, whether the connection is firm, whether the mesh is unobstructed, and whether there are any defects in its appearance.

[0017] like Figures 1 to 4As shown, this utility model discloses a novel agent-side valve plate isolation mesh structure. During operation, the three-stage gradient filter combination achieves a 99.93% >10μm impurity rejection rate while reducing flow resistance by 58.7%, breaking through the contradiction of "high pressure drop - high precision" in traditional filters. Even with a large amount of internal impurities, the internal cavity can store several grams of impurities without affecting the flow channel. The filter is installed inside the CHILLER and LCC with interference fit for limiting. Installation and removal only require removing the refrigerant and unscrewing the screws of the CHILLER and LCC to remove the heat exchanger filter.

[0018] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel agent-side valve plate isolation mesh structure, characterized in that, The device includes a main body (1), with the upper end of the main body (1) serving as the installation and connection point. The main body (1) contains a multi-stage filtration component. The multi-stage filtration component includes a first filter screen (2), a second filter screen (3), and a third filter screen (4). The first filter screen (2), the second filter screen (3), and the third filter screen (4) are arranged vertically inside the main body (1). The filtration areas of the first filter screen (2), the second filter screen (3), and the third filter screen (4) gradually increase, with the third filter screen (4) being the main filter screen.

2. The novel agent-side valve plate isolation mesh structure as described in claim 1, characterized in that, The main body of the equipment (1) is manufactured by casting.

3. The novel agent-side valve plate isolation mesh structure as described in claim 1, characterized in that, The main body of the device (1) is provided with an impurity storage area (5).

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