Ethylene oxide desorption chamber

Abstract

The utility model relates to an ethylene oxide analysis chamber, which is characterized in that mutually communicated hot air ducts are arranged in the left wall, the top wall and the right wall of an analysis chamber body, a plurality of air supply outlets are respectively arranged on the inner surfaces of the left wall, the top wall and the right wall of the analysis chamber body, and hot air devices are arranged in the hot air ducts; an air return duct communicated with the air inlet end of the hot air duct is arranged in the rear wall of the analysis chamber body, an air return port is formed in the inner surface of the rear wall of the analysis chamber body, and an air return device is arranged in the air return duct; a fresh air inlet is further formed in the analysis chamber body, and a fresh air supplementing device is arranged in the fresh air inlet; an exhaust duct is arranged in the bottom wall of the analysis chamber body, an exhaust outlet is formed in the inner surface of the bottom wall of the analysis chamber body, and an exhaust device is arranged in the exhaust duct; insulating layers are arranged in the top wall, the bottom wall, the left wall, the right wall, the front wall and the rear wall of the analysis chamber body; by optimizing the hot air circulation path in the analysis chamber body, it is ensured that the temperature in the analysis chamber body can be evenly distributed, and the heat preservation effect is good.

Description

Technical Field

[0001] This utility model relates to the field of medical device sterilization equipment technology, and more specifically, to an ethylene oxide desorption chamber. Background Technology

[0002] The main purpose of ethylene oxide desorption is to remove residual ethylene oxide and its reactants from sterilized items. While ethylene oxide sterilization effectively kills various microorganisms, a certain amount of ethylene oxide and its reactants remain in the items after sterilization. These residues are harmful to human health, especially with long-term exposure, which may cause skin burns, respiratory irritation, and even carcinogenic risks. Currently, the main methods for achieving ethylene oxide desorption include vacuum desorption, high-temperature desorption, and natural ventilation desorption. High-temperature desorption accelerates the desorption process by increasing temperature and air exchange; the higher the temperature, the faster the ethylene oxide evaporates. This is a commonly used method. However, in existing technologies, the structural layout often only involves hot air diffusing upwards from the lower outlet or downwards from the upper outlet within the desorption chamber, lacking hot air recirculation and multi-directional circulation designs. This easily leads to uneven airflow distribution, affecting the uniformity of temperature distribution and gas exchange efficiency within the desorption chamber, which is detrimental to the complete desorption of ethylene oxide. Utility Model Content

[0003] The technical problem to be solved by this invention is to provide an ethylene oxide desorption chamber, which addresses the above-mentioned deficiencies of the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: an ethylene oxide desorption chamber, comprising a desorption chamber body, wherein the left wall, top wall and right wall of the desorption chamber body are provided with interconnected hot air ducts, and the inner surfaces of the left wall, top wall and right wall of the desorption chamber body are respectively provided with multiple air inlets communicating with the hot air ducts, and hot air devices are provided in the hot air ducts; the rear wall of the desorption chamber body is provided with a return air duct communicating with the air inlet of the hot air duct, and the inner surface of the rear wall of the desorption chamber body is provided with at least one The analytical chamber body is provided with a return air inlet connected to the return air duct, and a return air device is provided inside the return air duct; the analytical chamber body is also provided with at least one fresh air inlet connected to the return air duct, and a fresh air supply device is provided inside any of the fresh air inlets; an exhaust air duct is provided inside the bottom wall of the analytical chamber body, and at least one exhaust air inlet connected to the exhaust air duct is provided on the inner surface of the bottom wall of the analytical chamber body, and an exhaust air device is provided inside the exhaust air duct; the top wall, bottom wall, left wall, right wall, front wall and rear wall of the analytical chamber body are also provided with a thermal insulation layer.

[0005] In some embodiments, the bottom wall of the analysis chamber body is further provided with hot water pipes arranged in a grid pattern, and the insulation layer inside the bottom wall of the analysis chamber body is located below the hot water pipes.

[0006] In some embodiments, the bottom wall of the analytical chamber body is further provided with a plurality of first temperature sensors for detecting the temperature of hot water pipes at different points.

[0007] In some embodiments, the left wall, top wall and right wall of the analytical chamber body are respectively provided with a plurality of second temperature sensors for detecting the temperature of hot air from different directions.

[0008] In some embodiments, a flow guide baffle is provided on the left and / or right wall of the analytical chamber body below any one or more air outlets, the flow guide baffle being driven by a flip motor to flip up and down relative to the corresponding air outlet.

[0009] In some embodiments, the hot air device includes a blower and an electric heating component disposed within the blower, wherein the air inlet direction of the blower corresponds to the air inlet end of the hot air duct, and the air outlet direction of the blower corresponds to any air outlet.

[0010] In some embodiments, the return air device is an exhaust fan, the exhaust direction of the exhaust fan corresponds to any return air inlet, and the exhaust direction of the exhaust fan corresponds to the intake direction of the blower.

[0011] In some embodiments, the exhaust device is an exhaust fan, and the exhaust direction of the exhaust fan corresponds to any exhaust port.

[0012] In some embodiments, at least one lighting lamp is also provided on the top wall of the analytical chamber body.

[0013] The beneficial effects of this utility model are as follows: Unlike the prior art, the ethylene oxide desorption chamber of this utility model, with its hot air path consisting of a hot air duct, multiple air supply outlets, a return air duct, at least one return air outlet, an exhaust air duct, and at least one exhaust air outlet, combined with a hot air device, a return air device, and an exhaust air device, helps to avoid dead zones in hot air circulation, fully promotes hot air circulation, optimizes the hot air circulation path within the desorption chamber body, and thus ensures that the temperature within the desorption chamber body can be evenly distributed. Furthermore, the top wall, bottom wall, left wall, right wall, front wall, and rear wall of the desorption chamber body are all equipped with heat insulation layers, which can effectively prevent heat loss and facilitate the full desorption of ethylene oxide. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the distribution of the hot air duct, air outlet, and insulation layer in an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram showing the distribution of hot water pipes, return air ducts, and exhaust air ducts in an embodiment of this utility model;

[0016] Figure 3 This is a three-dimensional schematic diagram of the interior of the analytical chamber in an embodiment of this utility model;

[0017] The labels and numbers in the diagram are as follows: Analysis chamber body - 1; Hot air duct - 10; Air supply outlet - 101; Hot air device - 2; Return air duct - 20; Return air outlet - 102; Return air device - 3; Exhaust air duct - 30; Exhaust outlet - 103; Exhaust device - 4; Insulation layer - 5; Hot water pipe - 6; First temperature sensor - 71; Second temperature sensor - 72; Baffle plate - 8; Lighting - 9; Door - 11; Fresh air inlet - 201; Fresh air supply device - 12. Detailed Implementation

[0018] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0021] Furthermore, the terms indicating orientation, such as "up," "down," "front," "back," "left," "right," "upper end," and "lower end," are all based on the posture and position of the device or equipment described in this solution during normal use.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] This utility model embodiment provides an ethylene oxide desorption chamber, such as Figures 1 to 3 As shown, the ethylene oxide desorption chamber includes a chamber body 1. Hot air ducts 10 are interconnected in the left, top, and right walls of the chamber body 1. Multiple air inlets 101 communicating with the hot air ducts 10 are provided on the inner surfaces of the left, top, and right walls of the chamber body 1. A hot air device 2 is installed inside the hot air ducts 10. A return air duct 20 communicating with the air inlet of the hot air duct 10 is provided in the rear wall of the chamber body 1. At least one return air inlet 10 communicating with the return air duct 20 is provided on the inner surface of the rear wall of the chamber body 1. 2. A return air device 3 is provided in the return air duct 20; the analysis chamber body 1 is also provided with at least one fresh air inlet 201 that communicates with the return air duct 20, and a fresh air replenishment device 12 is provided in any fresh air inlet 201; an exhaust air duct 30 is provided in the bottom wall of the analysis chamber body 1, and at least one exhaust port 103 that communicates with the exhaust air duct 30 is provided on the inner surface of the bottom wall of the analysis chamber body 1, and an exhaust device 4 is provided in the exhaust air duct 30; the top wall, bottom wall, left wall, right wall, front wall and rear wall of the analysis chamber body 1 are also provided with a heat insulation layer 5.

[0024] The insulation layer 5, for example, is made of polyurethane foam, which has good thermal insulation performance, as well as good waterproofing and adhesion. It is used to prevent heat loss from the analytical chamber body 1, and has a good insulation effect. The polyurethane foam layer is installed, for example, in the internal interlayer of the corresponding wall of the analytical chamber body 1.

[0025] Fresh air from outside the analysis chamber 1 can enter the return air duct 20 through the fresh air inlet 201 and, under the action of the fresh air replenishment device 12, enter the hot air duct 10. There, it is heated by the hot air device 2 and then sent into the analysis chamber 1 to compensate for the exhaust air. It should be noted that any fresh air inlet 201 is located, for example, on the outer side of the rear wall of the analysis chamber 1. In other embodiments, any fresh air inlet 201 can also be located at any other suitable position on the analysis chamber 1, as long as it can achieve the purpose of absorbing fresh air from outside the analysis chamber 1. The fresh air replenishment device 12 is, for example, a fresh air fan.

[0026] Specifically, in this embodiment, the bottom wall of the analytical chamber body 1 is also provided with hot water pipes 6 arranged in a grid pattern to form a "dual heat source" complementary mode with the hot air heating, so as to ensure sufficient heat supply in the analytical chamber body 1. The insulation layer 5 in the bottom wall of the analytical chamber body 1 is located below the hot water pipes 6, so that the heat carried by the hot water pipes 6 can be kept in a state of transfer into the analytical chamber body 1, preventing excessive heat loss.

[0027] The bottom wall of the analysis chamber body 1 is equipped with multiple first temperature sensors 71 for detecting the temperature of hot water pipes at different points. These sensors, along with a controller electrically connected to the first temperature sensors 71, enable the detection of the temperature of the hot water pipe 6, thereby meeting various temperature control requirements. The controller can be located at any suitable position on the analysis chamber body 1, depending on the actual application.

[0028] Specifically, in this embodiment, the left wall, top wall and right wall of the analysis chamber body 1 are respectively provided with a plurality of second temperature sensors 72 for detecting the temperature of hot air in different directions. The second temperature sensors 72 should also be electrically connected to the controller to realize the temperature detection of hot air in different directions.

[0029] For example, a second temperature sensor 72 is installed at the center of the left wall, top wall and right wall of the analysis chamber body 1, a second temperature sensor 72 is installed at the upper part of the left wall and right wall of the analysis chamber body 1 near the top corner, and a second temperature sensor 72 is installed at the lower part of the left wall and right wall of the analysis chamber body 1 near the top corner, respectively, to detect the hot air temperature at different locations, so as to ensure that there is hot air circulation in all directions in the analysis chamber body 1 and the temperature distribution is uniform.

[0030] Specifically, in this embodiment, guide baffles 8 are provided on the left and right walls of the analytical chamber body 1 below multiple air outlets 101. The multiple air outlets 101 refer to multiple air outlets 101 distributed horizontally at intervals, so that the air delivery angle of the corresponding multiple air outlets 101 can be adjusted simultaneously by the horizontally arranged guide baffles 8. The guide baffles 8 are driven by a flip motor to flip up and down relative to the corresponding air outlets 101, ultimately achieving sufficient flow of hot air into the analytical chamber body 1 from different guiding angles, so that the hot air can be evenly distributed within the analytical chamber body 1. The flip motor can be located at any suitable position within the analytical chamber body 1 near the corresponding air outlet 101, as long as it can drive the guide baffles 8 to flip up and down relative to the corresponding air outlet 101; this embodiment does not impose a specific limitation.

[0031] It is understood that the left, top, and right walls of the analysis chamber body 1 are equipped with interconnected hot air ducts 10. That is, when the left, top, and right walls of the analysis chamber body 1 are respectively equipped with hot air flow channels located in corresponding directions, these three (left, top, and right) hot air flow channels should be interconnected to form hot air ducts 10 that allow hot air to flow simultaneously from the left, top, and right directions. Therefore, the hot air ducts 10 should also be designed with multiple outlets, each corresponding to and connected to each air outlet 101, thereby achieving the purpose of delivering hot air into the analysis chamber body 1 through the hot air ducts 10 and multiple air outlets 101. This ensures that hot air flows from the top and sides into all directions within the analysis chamber body 1, thus ensuring effective hot air circulation through this reasonable hot air inflow path layout.

[0032] It should be noted that the end of the hot air duct 10 furthest from the multiple air outlets 101 should penetrate the outer surface of the analytical chamber body 1, so that outside air can enter the hot air duct 10 and be processed into hot air by the hot air device 2, thereby ensuring effective air circulation. This is a known technology and will not be described in detail in this embodiment. However, the hot air ducts at these three locations (left wall, top wall, and right wall) can partially penetrate the insulation layer 5 in the corresponding left wall, top wall, and right wall of the analytical chamber body 1, or they can completely not intersect with the insulation layer 5. The specific arrangement should be determined based on the actual application.

[0033] The hot air device 2 includes a blower and an electric heating component housed within the blower, such as a heating wire assembly and related electronic control components. The blower's air inlet direction corresponds to the air inlet end of the hot air duct 10, so that outside air entering the hot air duct 10 is processed into hot air by the hot air device 2; the blower's air outlet direction corresponds to any air outlet 101, so that the hot air processed by the hot air device 2 is sent into the analytical chamber body 1 through multiple air outlets 101.

[0034] Specifically, in this embodiment, the return air device 3 is an exhaust fan. The exhaust direction of the exhaust fan corresponds to any return air inlet 102, which is used to allow the hot air in the analysis chamber body 1 to flow through the return air inlet 102 and the return air duct 20 to the air intake direction of the blower. The exhaust direction of the exhaust fan corresponds to the air intake direction of the blower, so that the air in the return air duct 20 can be reused by the blower. Since the air flowing back into the return air duct 20 still has a certain amount of heat, when it is heated again by the blower, the heating efficiency is faster. While effectively preventing heat loss, it promotes a stable supply of hot air, and the return air and hot air work together.

[0035] It should be noted that the layout of the return air duct 20 and the insulation layer 5 in the rear wall of the corresponding analytical chamber body 1 can be either partially through the insulation layer 5 or completely without intersecting with the insulation layer 5, depending on the actual application.

[0036] Specifically, in this embodiment, the exhaust device 4 is an exhaust fan, and the exhaust direction of the exhaust fan corresponds to any exhaust port 103. The end of the exhaust duct 30 furthest from the exhaust port 103 should also penetrate the outer surface of the analytical chamber body 1, so that the air in the exhaust duct 30 can be discharged outwards under the action of the exhaust fan. This not only facilitates the removal of hot air from the analytical chamber body 1 after analytical treatment, but also allows for adjustment of the exhaust air volume during analytical treatment based on the air pressure inside the analytical chamber body 1, in conjunction with the dynamic changes in hot and return air.

[0037] It should be noted that the layout of the exhaust duct 30 should be based on not affecting the direction of the hot water pipe 6. Furthermore, the layout of the exhaust duct 30 and the insulation layer 5 in the bottom wall of the corresponding analytical chamber body 1 can be partially through the insulation layer 5 or completely without intersecting with the insulation layer 5, depending on the actual application.

[0038] Specifically, in this embodiment, at least one lighting lamp 9 is provided on the top wall of the analytical chamber body 1 to provide illumination and facilitate operation. The lighting lamp 9 is, for example, a high-temperature resistant lighting lamp, which is preferred for use under high-temperature conditions.

[0039] In this embodiment, the analytical chamber body 1 is also provided with a door 11, which is located on the front wall of the analytical chamber body 1.

[0040] In the attached diagram, arrow A indicates the direction of air supply, arrow B indicates the direction of air return, arrow C indicates the direction of air exhaust, and arrow D indicates the direction of water flow.

[0041] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An ethylene oxide desorption chamber, comprising a chamber body, characterized in that: The left, top, and right walls of the analytical chamber are equipped with interconnected hot air ducts. The inner surfaces of the left, top, and right walls of the analytical chamber are each provided with multiple air outlets communicating with the hot air ducts. Hot air devices are installed within the hot air ducts. The rear wall of the analytical chamber is equipped with a return air duct communicating with the air inlet of the hot air duct. The inner surface of the rear wall of the analytical chamber is provided with at least one return air outlet communicating with the return air duct. Return air devices are installed within the return air duct. The analytical chamber also has at least one fresh air inlet communicating with the return air duct, and each fresh air inlet is equipped with a fresh air supply device. The bottom wall of the analytical chamber is equipped with an exhaust air duct. The inner surface of the bottom wall of the analytical chamber is provided with at least one exhaust air outlet communicating with the exhaust air duct. Exhaust devices are installed within the exhaust air duct. The top, bottom, left, right, front, and rear walls of the analytical chamber are all equipped with insulation layers.

2. The ethylene oxide desorption chamber according to claim 1, characterized in that: The bottom wall of the analysis chamber is also equipped with hot water pipes arranged in a grid pattern, and the insulation layer inside the bottom wall of the analysis chamber is located below the hot water pipes.

3. The ethylene oxide desorption chamber according to claim 2, characterized in that: The bottom wall of the analysis chamber is also equipped with multiple first temperature sensors for detecting the temperature of hot water pipes at different locations.

4. The ethylene oxide desorption chamber according to claim 1, characterized in that: The left, top, and right walls of the analytical chamber are also equipped with multiple second temperature sensors for detecting the temperature of hot air from different directions.

5. The ethylene oxide desorption chamber according to claim 1, characterized in that: The left and / or right walls of the analytical chamber are provided with baffles below any one or more air outlets. The baffles are driven by a rotating motor to rotate up and down relative to the corresponding air outlets.

6. The ethylene oxide desorption chamber according to claim 1, characterized in that: The hot air device includes a blower and an electric heating component installed inside the blower. The air inlet direction of the blower corresponds to the air inlet end of the hot air duct, and the air outlet direction of the blower corresponds to any air outlet.

7. The ethylene oxide desorption chamber according to claim 1, characterized in that: The return air device is an exhaust fan, the exhaust direction of which corresponds to any return air inlet, and the exhaust direction of which corresponds to the intake direction of the blower.

8. The ethylene oxide desorption chamber according to claim 1, characterized in that: The exhaust device is an exhaust fan, and the exhaust direction of the exhaust fan corresponds to any exhaust port.

9. The ethylene oxide desorption chamber according to any one of claims 1-8, characterized in that: At least one lighting lamp is also provided on the top wall of the analytical chamber.

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