Cross contamination prevention device for clean room exhaust heat recovery

Abstract

The utility model provides a kind of clean room exhaust heat recovery's anti-cross contamination device, belong to exhaust heat recovery technical field, including air supply assembly, including base, shell being inserted in base end part, hinged in shell inside connecting piece, fan being inserted in connecting piece middle;Processing component, including fixedly connected in the sidewall of shell box, fixedly connected in the inside of box frame, inserted in the inner wall of frame baffle, and filter core being encapsulated in the center of baffle.The utility model has the beneficial effect that: by driving filter core misplacement, filter core resistance distribution can be flexibly adjusted, prolong the residence time of hot air in filter core, heat absorption efficiency is promoted;With the directional air supply of cylinder adjustment, ensure that hot air accurately covers filter core, reduce heat loss, suitable for clean room waste heat recovery, reduce air conditioning system energy consumption, one-way air path design blocks pollutant diffusion path, reduce cross contamination, fan direction adjustment can be adapted to different heat recovery scene.

Description

Technical Field

[0001] This utility model belongs to the field of exhaust heat recovery technology, specifically relating to a device for preventing cross-contamination in cleanroom exhaust heat recovery. Background Technology

[0002] Cleanrooms serve as core production environments for high-end industries such as electronics, biomedicine, and precision manufacturing, demanding stringent requirements for air cleanliness and temperature / humidity stability. To maintain this clean environment, their air conditioning systems must operate continuously, consuming 40%-60% of the building's total energy. Among these systems, the exhaust system, which directly discharges treated air, contains a significant amount of recyclable cold / heat, demonstrating substantial energy-saving potential.

[0003] Cleanroom exhaust air may contain process contaminants (such as photoresist volatiles in the electronics industry and microbial aerosols in the pharmaceutical industry). If not handled properly during the recycling process, it can easily cause cross-contamination between exhaust air and fresh air, leading to product scrapping or biosafety accidents. Utility Model Content

[0004] The purpose of this invention is to provide a device for preventing cross-contamination of exhaust heat recovery in clean rooms, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cleanroom exhaust heat recovery device for preventing cross-contamination includes,

[0007] An air supply assembly includes a base, a housing inserted into the end of the base, a connector hinged inside the housing, a fan inserted into the middle of the connector, and an air inlet pipe sealed and installed at the end of the housing, the air inlet pipe communicating with the inside of the housing, and the end of the air inlet pipe extending to the side wall of the fan inlet.

[0008] The processing component includes a housing fixedly connected to the side wall of the outer casing, a frame fixedly connected to the inside of the housing, a partition inserted into the inner wall of the frame, and a filter element encapsulated in the center of the partition. The through hole in the side wall of the housing is connected to the through hole in the side wall of the outer casing, and the air outlet of the fan is located on the side wall of the filter element.

[0009] In a preferred embodiment of this utility model, a rack plate is fixedly connected to the lower side wall of the partition, and a gear is rotatably installed inside the housing. The rack plate side wall meshes with the gear side wall teeth, and the rack plate is symmetrically arranged on the gear side wall.

[0010] In a preferred embodiment of this utility model, a sleeve is rotatably installed on the side wall of the housing, and a connecting rod is threadedly connected to the center of the sleeve, with the end of the connecting rod fixedly connected to the end of the rack plate.

[0011] In a preferred embodiment of this utility model, a turntable is fixedly connected to the side wall of the sleeve, and a pin is threadedly connected to the side wall of the turntable. The end of the pin is inserted into the outer wall of the box, and the end face of the turntable is flush with the outer wall of the box.

[0012] In a preferred embodiment of this utility model, a support rod is inserted into the side wall of the frame, the end of the support rod is inserted into the end of the partition, and a limiting block that cooperates with the frame is installed at the end of the support rod.

[0013] As a preferred embodiment of this utility model, a spring is fixedly connected to the inner side of the base, the end of the spring is fixedly connected to the bottom of the outer shell, and a handle bolt that cooperates with the connecting post of the outer shell side wall is threadedly connected to the side wall of the base.

[0014] In a preferred embodiment of this utility model, a cylinder is hinged inside the outer shell, and the end of the cylinder is hinged to the lower side wall of the connector.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by driving the filter element to misalign, the resistance distribution of the filter element can be flexibly adjusted, the residence time of hot air in the filter element can be extended, and the heat absorption efficiency can be improved; combined with the directional air supply adjusted by the cylinder, it ensures that the hot air accurately covers the filter element, reduces heat loss, is suitable for waste heat recovery in clean rooms, reduces the energy consumption of the air conditioning system, the unidirectional air path design blocks the diffusion path of pollutants, reduces cross-contamination, and the fan direction adjustment can be adapted to different heat recovery scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the air supply component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the processing component structure of this utility model.

[0021] In the diagram: 100, air supply assembly; 101, base; 102, outer casing; 103, connector; 104, fan; 105, air inlet pipe; 106, spring; 107, cylinder; 200, processing assembly; 201, housing; 202, frame; 203, partition; 204, filter element; 205, rack and pinion; 206, gear; 207, sleeve; 208, connecting rod; 209, turntable; 210, pin; 211, support rod. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] 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.

[0024] 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 or selective embodiment that excludes other embodiments.

[0025] Example

[0026] Reference Figure 1-4 This is an embodiment of the present invention, which provides a device for preventing cross-contamination of exhaust air heat recovery in a cleanroom, comprising:

[0027] The air supply assembly 100 includes a base 101, a housing 102 inserted into the end of the base 101, a connector 103 hinged inside the housing 102, a fan 104 inserted into the middle of the connector 103, and an air inlet pipe 105 sealed and installed at the end of the housing 102. The air inlet pipe 105 communicates with the inside of the housing 102, and the end of the air inlet pipe 105 extends to the side wall of the air inlet of the fan 104.

[0028] The processing component 200 includes a housing 201 fixedly connected to the side wall of the outer casing 102, a frame 202 fixedly connected inside the housing 201, a partition 203 inserted into the inner wall of the frame 202, and a filter element 204 encapsulated in the center of the partition 203. The through hole on the side wall of the housing 201 is connected to the through hole on the side wall of the outer casing 102, and the air outlet of the fan 104 is located on the side wall of the filter element 204.

[0029] The air supply assembly 100 is responsible for directing air into the treatment assembly. The base 101 provides an installation reference for the entire device. The outer shell 102 (sealed cavity structure) inserted at its end forms an air delivery channel. The air inlet pipe 105, which is sealed at the end of the outer shell, is connected to the interior and is used to introduce cleanroom exhaust air (or fresh air). Its end extends to the air inlet of the fan 104 to ensure that air enters the fan 104 efficiently. The hinged connector 103 (metal bracket) inside the outer casing 102 provides a mounting carrier for the fan 104, which is inserted into the middle of the connector 103. The treatment component 200 improves heat absorption efficiency through an adjustable filter structure while preventing cross-contamination between exhaust and fresh air. The box 201 (sealed cavity) fixed to the side wall of the outer casing 102 is the core area for heat recovery, and the frame 202 (metal frame) fixed inside it is used to install the partition 203. The filter 204 (usually a high-efficiency glass fiber filter, but other suitable filter can also be used) encapsulated in the center of the partition 203 (high-temperature resistant plate) is the key to heat recovery and filtration. It can absorb exhaust heat through its porous structure while filtering particulate matter.

[0030] Specifically, a rack plate 205 is fixedly connected to the lower side wall of the partition 203, and a gear 206 is rotatably installed inside the housing 201. The rack on the side wall of the rack plate 205 meshes with the teeth on the side wall of the gear 206, and the rack plate 205 is symmetrically arranged on the side wall of the gear 206.

[0031] Among them, the rack plate 205 (with straight teeth) fixed to the lower side wall of the partition 203 meshes with the gear 206 rotatably installed inside the box. The rack plates are symmetrically distributed on both sides of the gear. When the gear 206 rotates, the rack plates 205 on both sides move synchronously in opposite directions, causing the corresponding partition 203 to move closer or further away from each other, realizing the misalignment adjustment of the filter element 204, changing the resistance of the filter element 204 to the passage of hot air, so that the hot air can be better absorbed by the filter element 204.

[0032] Furthermore, a sleeve 207 is rotatably installed on the side wall of the housing 201, and a connecting rod 208 is threadedly connected to the center of the sleeve 207. The end of the connecting rod 208 is fixedly connected to the end of the rack plate 205.

[0033] Among them, the sleeve 207 (with internal thread) rotatably installed on the side wall of the housing is threadedly connected to the connecting rod 208 (with external thread). The end of the connecting rod is fixed to the rack plate 205. Rotating the sleeve 207 can drive the connecting rod 208 to extend and retract, thereby pushing the rack plate 205 to move and driving the gear 206 to rotate, so as to achieve precise control of the misalignment of the filter element 204.

[0034] Furthermore, a turntable 209 is fixedly connected to the side wall of the sleeve 207, and a pin rod 210 is threadedly connected to the side wall of the turntable 209. The end of the pin rod 210 is inserted into the outer side wall of the housing 201, and the end face of the turntable 209 is flush with the outer side wall of the housing 201.

[0035] The turntable 209, which is fixed to the side wall of the sleeve, is easy to rotate and adjust manually. The end of the pin 210, which is threaded to the side wall, can be inserted into the positioning hole on the outer side wall of the box to lock the position of the filter element after adjustment (to prevent loosening).

[0036] Preferably, a support rod 211 is inserted into the side wall of the frame 202, the end of the support rod 211 is inserted into the end of the partition 203, and a limiting block that cooperates with the frame 202 is installed at the end of the support rod 211.

[0037] Among them, the end of the support rod 211 (metal rod) inserted into the side wall of the frame 202 is inserted into the end of the partition 203, and the limiting block at the end (which is snapped into the frame) restricts the movement range of the partition to ensure structural stability during misalignment adjustment.

[0038] It should be noted that a spring 106 is fixedly connected to the inner side of the base 101, the end of the spring 106 is fixedly connected to the bottom of the outer shell 102, and a handle bolt that mates with the connecting post on the side wall of the outer shell 102 is threadedly connected to the side wall of the base 101.

[0039] The spring 106 (with its end connected to the bottom of the outer shell) fixed inside the base 101 provides elastic support for the outer shell 102 and can buffer the vibration generated by the operation of the fan 104 (reducing noise and structural wear); the handle bolts threaded to the side wall of the base cooperate with the connecting column of the side wall of the outer shell, and after tightening, the position of the outer shell 102 can be locked to ensure the overall stability of the device.

[0040] Preferably, a cylinder 107 is hinged inside the outer casing 102, and the end of the cylinder 107 is hinged to the lower side wall of the connector 103.

[0041] Among them, the end of the cylinder 107, which is hinged to the inner side of the outer shell, is hinged to the lower side wall of the connector. When the cylinder 107 extends or retracts, it can push the connector 103 to rotate around the hinge point, thereby driving the fan 104 to rotate synchronously, so as to realize the flexible adjustment of the air supply direction (to adapt to the hot air introduction needs of different areas of the processing component).

[0042] During use, the cleanroom exhaust air (including residual heat) enters the outer casing 102 through the air inlet pipe 105. The fan 104 is started, and the air is pressurized by the fan and delivered to the treatment component 200. According to the heat recovery requirements (such as high hot air concentration in a certain area of ​​the chamber), the cylinder 107 is controlled to extend or retract: when the cylinder extends, it pushes the connecting piece 103 to rotate upward around the hinge point of the outer casing, causing the fan 104 to tilt upward, and the air delivery direction is biased towards the upper part of the chamber; when the cylinder retracts, the connecting piece rotates downward, the fan tilts downward, and the air delivery direction is biased towards the lower part of the chamber; after adjustment, the fan directs the air into the interior of the chamber 201 to ensure that the hot air accurately covers the filter area.

[0043] Hot air entering the chamber passes through filter element 204. The filter element absorbs heat through its porous structure (achieving heat recovery for preheating fresh air) while filtering particulate matter (such as dust and microorganisms) from the air, preventing exhaust pollutants from spreading into the clean room (preventing cross-contamination). To improve heat absorption efficiency (e.g., high hot air flow rate and velocity), loosen the pin 210, rotate the turntable 209 to rotate the sleeve 207, and the sleeve drives the connecting rod 208 to extend and retract via threaded transmission. The connecting rod drives the rack plate 205 to move, driving the gear 206 to rotate. The rack plates on both sides move synchronously in opposite directions, causing adjacent partitions 203 to misalign. After the filter element is misaligned with the partitions, the resistance distribution of its pore channels changes (local resistance increases), prolonging the residence time of hot air in the filter element and expanding the heat exchange contact area, thereby improving heat absorption efficiency. After adjustment, tighten the pin 210 to lock the filter element position and ensure stable operation.

[0044] In summary, by driving the filter element to misalign, the resistance distribution of the filter element can be flexibly adjusted, extending the residence time of hot air within the filter element and improving heat absorption efficiency. Combined with directional airflow adjusted by a cylinder, this ensures precise hot air coverage of the filter element, further reducing heat loss. This is suitable for waste heat recovery in cleanrooms, reducing the energy consumption of air conditioning systems. The filter element can intercept particulate matter and microorganisms in the exhaust air; the sealed connection between the housing and the outer shell, along with the unidirectional airflow design, completely blocks the diffusion path of pollutants, reducing cross-contamination. The cylinder-driven fan direction adjustment can adapt to different heat recovery scenarios (such as differences in hot air concentration in different areas of the housing), meeting the exhaust air treatment needs of different locations in the cleanroom without requiring equipment replacement.

[0045] 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 proportion 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.

[0046] 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.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled 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.

[0048] 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 device for preventing cross-contamination of exhaust air heat recovery in clean rooms, characterized in that: include, An air supply assembly (100) includes a base (101), a housing (102) inserted into the end of the base (101), a connector (103) hinged inside the housing (102), a fan (104) inserted into the middle of the connector (103), and an air inlet pipe (105) sealed and installed at the end of the housing (102), the air inlet pipe (105) communicating with the inside of the housing (102), and the end of the air inlet pipe (105) extending to the side wall of the air inlet of the fan (104); The processing component (200) includes a housing (201) fixedly connected to the side wall of the outer shell (102), a frame (202) fixedly connected inside the housing (201), a partition (203) inserted into the inner wall of the frame (202), and a filter element (204) encapsulated in the center of the partition (203). The through hole in the side wall of the housing (201) is connected to the through hole in the side wall of the outer shell (102), and the air outlet of the fan (104) is located on the side wall of the filter element (204).

2. The anti-cross-contamination device for cleanroom exhaust heat recovery according to claim 1, characterized in that: A rack plate (205) is fixedly connected to the lower side wall of the partition (203), and a gear (206) is rotatably installed inside the housing (201). The rack on the side wall of the rack plate (205) meshes with the teeth on the side wall of the gear (206), and the rack plate (205) is symmetrically arranged on the side wall of the gear (206).

3. The anti-cross-contamination device for cleanroom exhaust heat recovery according to claim 2, characterized in that: A sleeve (207) is rotatably mounted on the side wall of the housing (201), and a connecting rod (208) is threadedly connected to the center of the sleeve (207). The end of the connecting rod (208) is fixedly connected to the end of the rack plate (205).

4. The anti-cross-contamination device for cleanroom exhaust heat recovery according to claim 3, characterized in that: A turntable (209) is fixedly connected to the side wall of the sleeve (207). A pin rod (210) is threadedly connected to the side wall of the turntable (209). The end of the pin rod (210) is inserted into the outer wall of the box (201), and the end face of the turntable (209) is flush with the outer wall of the box (201).

5. The anti-cross-contamination device for cleanroom exhaust heat recovery according to claim 4, characterized in that: A support rod (211) is inserted into the side wall of the frame (202), the end of the support rod (211) is inserted into the end of the partition (203), and a limiting block that cooperates with the frame (202) is installed at the end of the support rod (211).

6. The anti-cross-contamination device for cleanroom exhaust heat recovery according to claim 5, characterized in that: A spring (106) is fixedly connected to the inner side of the base (101), and the end of the spring (106) is fixedly connected to the bottom of the outer shell (102). A handle bolt that cooperates with the connecting post of the side wall of the outer shell (102) is threadedly connected to the side wall of the base (101).

7. The anti-cross-contamination device for cleanroom exhaust heat recovery according to claim 6, characterized in that: A cylinder (107) is hinged inside the outer casing (102), and the end of the cylinder (107) is hinged to the lower side wall of the connector (103).

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