Condensable gas filtering device

Abstract

The utility model discloses a condensable gas filtering device which comprises a shell internally provided with a filtering cavity, a gas inlet and a gas outlet which are communicated with the filtering cavity are formed in the shell, and the condensable gas filtering device is characterized in that a cooling assembly is arranged in the filtering cavity; the cooling assembly comprises a hollow sleeve and a cooling coil coiled outside the sleeve, the top of the sleeve is connected with the top of the filter chamber, and a vertical distance is formed between the bottom of the sleeve and the bottom surface of the filter chamber; the air inlet is formed in the side wall of the shell, and the air inlet is formed above the bottom surface of the sleeve; the air outlet is formed in the bottom of the shell, an air outlet pipe is installed on the air outlet, the top of the air outlet pipe is inserted into the sleeve, and a gap is formed between the outer surface of the air outlet pipe and the inner wall of the sleeve. According to the utility model, the filtering and condensing effects are improved.

Description

Technical Field

[0001] The utility model relates to the field of filters, and particularly to a condensable gas filtering device. Background Art

[0002] Condensable gases include EVA glue, which is widely used in photovoltaic modules. It bonds photovoltaic glass, solar cells, and the backsheet together, protecting the solar cells and isolating air at the same time. It has good flexibility, optical transparency, and thermal sealing performance. When laminating photovoltaic modules, it is necessary to evacuate the air inside the module through vacuum pumping, and then heat to melt the EVA glue. During the vacuum pumping process, part of the EVA glue will flow into the vacuum pump with the air flow, resulting in damage to the vacuum pump.

[0003] Therefore, a filter is set up to filter out condensable gases such as EVA. For example, the application number is 202321880637.5, and the patent name is a condensable gas filtering device for a vacuum pump, which is used to filter condensable gases such as EVA. However, when it is in use, there are the following deficiencies:

[0004] 1. Multiple filter tubes are installed on the cooling tube. After the gas passes through the filter tubes, the cooling tube cools the filter tubes to cool the flowing gas, thereby realizing the condensation of condensable gases. In this way, there is one cooling tube, and the temperature of the filter tubes on the outer side is relatively high, resulting in poor condensation effect.

[0005] 2. The gas flow path is relatively short, resulting in poor condensation effect.

[0006] 3. The gas directly enters the interior of the housing from the air inlet, which will cause a large impact on the inner wall of the housing. Therefore, in order to prevent it from deforming, the wall thickness of the housing must be set relatively thick, resulting in a relatively large overall weight. Summary of the Invention

[0007] The purpose of the utility model is to provide a condensable gas filtering device, which improves the filtering and cooling effect by using this structure, and can also reduce the overall weight of the equipment.

[0008] To achieve the above purpose, the technical solution adopted by the utility model is: a condensable gas filtering device, including a housing with a filtering chamber inside, the housing is provided with an air inlet and an air outlet communicated with the filtering chamber,

[0009] a cooling component is arranged in the filtering chamber, the cooling component includes a hollow sleeve and a cooling coil wound around the outside of the sleeve, the top of the sleeve is connected to the top of the filtering chamber, and there is a vertical distance between the bottom of the sleeve and the bottom surface of the filtering chamber;

[0010] The air inlet is arranged on the side wall of the housing, and the air inlet is arranged above the bottom surface of the sleeve;

[0011] The air outlet is arranged at the bottom of the housing. An air outlet pipe is installed on the air outlet. The top of the air outlet pipe is inserted into the sleeve, and there is a gap between the outer surface of the air outlet pipe and the inner wall of the sleeve.

[0012] In the above technical solution, the sleeve, the filter chamber and the air outlet pipe are coaxially arranged.

[0013] In the above technical solution, the air inlet is arranged beside the axis of the filter chamber, and the air inlet is arranged facing the inner surface of the filter chamber.

[0014] In the above technical solution, the axis of the air inlet is perpendicular to the axis of the filter chamber;

[0015] And / or, the housing is a thin-walled housing.

[0016] In the above technical solution, the top of the filter chamber is communicated with the top of the housing. A cover plate for sealing the top of the filter chamber is provided at the top of the housing. The tops of the sleeve and the cooling coil are connected to the bottom surface of the cover plate.

[0017] In the above technical solution, a liquid inlet and a liquid outlet are provided on the cover plate and are respectively connected to both ends of the cooling coil;

[0018] And / or, a handle is further provided on the top of the cover plate.

[0019] In the above technical solution, there is a gap between the outer surface of the cooling coil and the sleeve;

[0020] And / or, the bottom of the cooling coil is arranged below the bottom surface of the sleeve, and the bottom of the cooling coil is arranged close to the bottom surface of the filter chamber.

[0021] In the above technical solution, the bottom of the sleeve is arranged close to the bottom surface of the filter chamber, and the top of the air outlet pipe is arranged close to the top of the sleeve.

[0022] In the above technical solution, the air inlet is arranged close to the top of the housing.

[0023] In the above technical solution, a liquid drain port is provided at the lower part of the side of the housing or at the bottom of the housing.

[0024] Due to the application of the above technical solution, the present utility model has the following advantages compared with the prior art:

[0025] 1. In the utility model, a sleeve and a cooling coil are arranged in the filtering chamber. The gas entering from the air inlet enters the filtering chamber. In this process, the gas will contact the cooling coil to condense the gas. At the same time, the gas also needs to flow from top to bottom into the sleeve and then enter and be discharged from the top of the air outlet pipe inside the sleeve. In this process, the flow path of the gas is longer and the condensation effect is better;

[0026] 2. In the utility model, the air inlet faces the side wall of the filtering chamber, so that the flow direction of the gas spirally flows along the inner wall of the filtering chamber. This can not only extend the flow path of the gas and improve the cooling and filtering effect, but also increase the contact area and contact time with the cooling coil to improve the cooling and filtering effect. Moreover, the impact force of the gas on the shell is smaller, the wall thickness of the shell can be thinner, the overall weight can be lighter, and the cost can be lower;

[0027] 3. In the utility model, a liquid discharge port is also arranged at the bottom of the shell, so that the condensed liquid can be discharged regularly;

[0028] 4. Compared with the previous structure, the structure of the utility model is simpler and the cost is lower. Description of the Drawings

[0029] Figure 1 is the structural schematic diagram of the first embodiment of the utility model;

[0030] Figure 2 is the three-dimensional structural schematic diagram of the first embodiment of the utility model;

[0031] Figure 3 is the sectional structural schematic diagram of the first embodiment of the utility model;

[0032] Figure 4 is the sectional structural schematic diagram of the shell in the first embodiment of the utility model;

[0033] Figure 5 is the three-dimensional structural schematic diagram (the shell is not shown) of the first embodiment of the utility model.

[0034] Wherein: 1, filtering chamber; 2, shell; 3, air inlet; 4, air outlet; 5, sleeve; 6, cooling coil; 7, air outlet pipe; 8, cover plate; 9, liquid inlet; 10, liquid outlet; 11, handle; 12, liquid discharge port. Detailed Embodiments

[0035] The following further describes the utility model in conjunction with the drawings and embodiments:

[0036] Embodiment 1: Refer to Figures 1 to 5As shown in the figure, a condensable gas filtering device includes a housing 2 with a filtering chamber 1 inside. An air inlet 3 and an air outlet 4 communicating with the filtering chamber 1 are provided on the housing 2.

[0037] A cooling assembly is provided in the filtering chamber 1. The cooling assembly includes a hollow sleeve 5 and a cooling coil 6 wound around the outside of the sleeve 5. The top of the sleeve 5 is connected to the top of the filtering chamber 1, and there is a vertical distance between the bottom of the sleeve 5 and the bottom surface of the filtering chamber 1.

[0038] The air inlet 3 is provided on the side wall of the housing 2 and is above the bottom surface of the sleeve 5.

[0039] The air outlet 4 is provided at the bottom of the housing 2. An air outlet pipe 7 is installed on the air outlet 4. The top of the air outlet pipe 7 is inserted into the sleeve 5, and there is a distance between the outer surface of the air outlet pipe 7 and the inner wall of the sleeve 5. The bottom of the air outlet pipe 7 is below the bottom surface of the housing 2.

[0040] In this embodiment, a circulating cooling medium is passed through the cooling coil. The sleeve is a hollow structure with both ends open. Since the top of the sleeve is connected to the top of the filtering chamber, the sleeve forms a hollow structure with an open bottom. In this way, when the high-temperature gas (containing EVA gas or other condensable gases) enters the filtering chamber through the air inlet, its flow path is to flow downward from the air inlet, then upward along the bottom of the sleeve, then enter the air outlet pipe from the top of the air outlet pipe, and finally flow out from the bottom of the air outlet pipe. During the process of the gas flowing from the air inlet to the bottom of the filtering chamber, since the cooling coil is outside the sleeve, that is, the cooling coil is between the sleeve and the filtering chamber, the high-temperature gas will flow through the cooling coil and the surrounding area of the cooling coil. The high-temperature gas is cooled by the cooling coil, so that the EVA (taking EVA gas as an example) in the high-temperature gas is condensed and liquefied and precipitated to the bottom of the filtering chamber. At the same time, during the process of its entering the sleeve from the bottom of the sleeve upward, since the cooling coil will also cool the space at the sleeve, the temperature of the sleeve and the inside of the sleeve is also relatively low. In this way, it can also cool the high-temperature gas, thereby condensing the EVA gas. In this way, the flow path of the gas is long, and it contacts the cooling coil and the space cooled by the cooling coil sufficiently and for a longer time, so as to realize the rapid condensation of the gas. And, due to the setting of the air outlet pipe, the condensed liquid will not be discharged from the air outlet and will be stored by the filtering chamber for subsequent unified treatment.

[0041] Among them, the sleeve 5, the filtering chamber 1 and the air outlet pipe 7 are coaxially arranged. In this way, the cooling coil can fully cool the high-temperature gas, so that the condensable gas is condensed. The filtering chamber is of a columnar structure, and its inner wall is an arc surface.

[0042] See Figure 3 As shown, a drain port 12 is provided below the side of the housing 2 or at the bottom of the housing 2. In this embodiment, the drain port is provided below the side of the housing, near the bottom of the filtration chamber, and a valve is provided above the drain port, so that the drain port can be opened regularly to discharge the condensed medium inside.

[0043] See Figure 1 、 2 As shown in FIG. 4, the air inlet 3 is provided beside the axis of the filtration chamber 1, and the air inlet 3 is arranged opposite to the inner surface of the filtration chamber 1. The axis of the air inlet is perpendicular to the axis of the filtration chamber.

[0044] In this embodiment, one side of the air outlet is tangent to the inner wall of one side of the filtration chamber. In this process, the gas entering from the air inlet will flow spirally downward along the inner wall of the filtration chamber, which can further extend the flow path of the gas, thereby improving the filtration effect of the condensable gas.

[0045] At the same time, in this way, since the air pressure entering the filtration chamber from the air inlet is relatively large, and the air outlet directly enters the filtration chamber in a tangential manner, the impact force of the high-pressure gas on the housing will be smaller. Therefore, the housing is a thin-walled housing, which can not only reduce the material used for the housing and lower the cost, but also reduce the overall weight of the filtration device.

[0046] See Figure 3 、 5 As shown in FIGS. 5 and 6, the top of the filtration chamber 1 is communicated with the top of the housing 2. The top of the housing 2 is provided with a cover plate 8 for sealing the top of the filtration chamber 1. The tops of the sleeve 5 and the cooling coil 6 are connected to the bottom surface of the cover plate 8.

[0047] In this embodiment, in order to facilitate the assembly of each component of the filtration device and also for maintenance and repair, the top of the filtration chamber is communicated with the top of the housing, and then a cover plate is installed on the top of the housing to seal the top of the filtration chamber with the cover plate. At the same time, the cooling component is directly installed on the bottom surface of the cover plate. When installing, the cooling component is pre-assembled on the cover plate in advance, and then the cooling component is directly inserted into the filtration chamber. After that, the cover plate abuts against the top of the housing, and it also plays a role in supporting the cooling component in a suspended state. Finally, the cover plate and the housing are fixed. Similarly, when disassembling, after loosening the cover plate and the housing, the cover plate is directly lifted, and the cooling component can be synchronously taken out of the filtration chamber for maintenance or repair. The cover plate and the housing are hermetically connected through a flange, a sealing ring and bolts.

[0048] See Figure 1 、 2As shown in FIGS. 5, an inlet port 9 and an outlet port 10 are provided on the cover plate 8 and are respectively connected to both ends of the cooling coil 6. A cooling medium supply pipeline or device sends the cooling medium into the cooling coil through the inlet port, and then discharges it from the outlet port, realizing the circulation of the cooling medium, so that the cooling coil can always cool the filtration chamber, ensuring the cooling and condensation of condensable gases.

[0049] Wherein, a handle 11 is further provided on the top of the cover plate 8. In this way, when installing and disassembling the cooling assembly and the cover plate, the cover plate and the cooling assembly can be lifted or lowered through the handle, facilitating installation and disassembly.

[0050] See Figure 3 、 5 As shown in FIGS., there is a gap between the outer surface of the cooling coil 6 and the sleeve 5; there is also a gap between the cooling coil and the inner surface of the filtration chamber. The cooling coil can sufficiently cool the space between the sleeve and the inner wall of the filtration chamber. In this way, when the high-temperature gas enters the filtration chamber from the inlet port, it can be sufficiently cooled and condensed by this cooling space, condensing the condensable gas.

[0051] Wherein, the bottom of the cooling coil is arranged below the bottom surface of the sleeve, and the bottom of the cooling coil is arranged close to the bottom surface of the filtration chamber.

[0052] In this way, the cooling coil can fill the axial space of the filtration chamber as much as possible, thereby improving the cooling effect and ensuring the condensation effect.

[0053] See Figure 3 As shown in FIGS., the bottom of the sleeve 5 is arranged close to the bottom surface of the filtration chamber 1, and the top of the outlet pipe 7 is arranged close to the top of the sleeve 5.

[0054] In this way, a condensation chamber is formed between the sleeve and the filtration chamber. The high-temperature gas from the inlet port will first enter this condensation chamber, be cooled and the condensable gas be condensed through the condensation chamber, and then the gas enters the sleeve from the gap between the bottom of the sleeve and the filtration chamber, and is further cooled through the internal space of the sleeve. Moreover, the moving path of the gas is longer, further cooling and condensing the condensable gas that may remain uncondensed, improving the condensation effect.

[0055] See Figure 1 、 2 As shown in FIGS. 4, the inlet port 3 is arranged close to the top of the housing 2. In this way, when the gas spirally flows from top to bottom at the inlet port, the flow path is longer, and the cooling and condensation effects are better.

[0056] At the same time, in this embodiment, the structure is simpler, the cost is lower, and the overall weight is lighter.

[0057] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0058] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For example, the two can form a mechanical abutment or contact connection method through abutment, contact, etc. The two can also be directly hung or hung and connected through an intermediate medium, etc. It can also be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A condensable gas filtering device, comprising a housing with a filtering chamber inside, wherein an air inlet and an air outlet communicating with the filtering chamber are formed on the housing, and it is characterized in that: A cooling assembly is arranged in the filtering chamber. The cooling assembly includes a hollow sleeve and a cooling coil wound around the outside of the sleeve. The top of the sleeve is connected to the top of the filtering chamber, and there is a vertical distance between the bottom of the sleeve and the bottom surface of the filtering chamber; The air inlet is arranged on the side wall of the housing and above the bottom surface of the sleeve; The air outlet is arranged at the bottom of the housing, and an air outlet pipe is installed on the air outlet. The top of the air outlet pipe is inserted into the sleeve, and there is a distance between the outer surface of the air outlet pipe and the inner wall of the sleeve.

2. The condensable gas filtering device according to claim 1, wherein: The sleeve, the filtering chamber and the air outlet pipe are coaxially arranged.

3. The condensable gas filtering device according to claim 1, wherein: The air inlet is arranged beside the axis of the filtering chamber and is arranged opposite to the inner surface of the filtering chamber; 4. The condensable gas filtering device according to claim 3, wherein: The axis of the air inlet is perpendicular to the axis of the filtering chamber; And / or, the housing is a thin-walled housing.

5. The condensable gas filtering device according to claim 1, characterized in that: The top of the filtering chamber communicates with the top of the housing. A cover plate for sealing the top of the filtering chamber is provided on the top of the housing, and the top of the sleeve and the cooling coil are connected to the bottom surface of the cover plate.

6. The condensable gas filtering device according to claim 5, wherein: Liquid inlets and liquid outlets are provided on the cover plate and are respectively connected to both ends of the cooling coil; And / or, a handle is further provided on the top of the cover plate.

7. The condensable gas filtering device according to claim 1, characterized in that: There is a distance between the cooling coil and the outer surface of the sleeve; And / or, the bottom of the cooling coil is arranged below the bottom surface of the sleeve, and the bottom of the cooling coil is close to the bottom surface of the filtering chamber.

8. The condensable gas filtering device according to claim 1, wherein: The bottom of the sleeve is close to the bottom surface of the filtering chamber, and the top of the air outlet pipe is close to the top of the sleeve.

9. The condensable gas filtering device according to claim 1, characterized in that: The air inlet is close to the top of the housing.

10. The condensable gas filtering device according to claim 1, wherein: A liquid discharge port is provided at the lower part of the side of the housing or at the bottom of the housing.

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