Exhaust device

Abstract

The utility model relates to the technical field of texturing process, in particular to an exhaust device, which comprises an exhaust pipe and a spray head, the exhaust pipe is provided with a plurality of air inlets and an air outlet, the spray head is positioned in the exhaust pipe and between the air inlets and the air outlet, the spray head is provided with a liquid inlet pipe, and the liquid inlet pipe penetrates through the exhaust pipe; wherein the air inlet is located at the bottom of the exhaust pipe, and the air outlet is located at the top of the exhaust pipe. Hydrogen entering the exhaust pipe is filtered and purified through liquid sprayed by the spray head, compared with an existing exhaust mode, hydrogen can be filtered and purified only through liquid sprayed by the spray head in the mode, the space occupied by the whole exhaust device can be reduced, meanwhile, the hydrogen flows from bottom to top, and the exhaust efficiency is improved. Spraying liquid flows from top to bottom under the action of gravity, and hydrogen and the spraying liquid are in more sufficient contact through the two mutually-fused flowing modes, so that the purification treatment efficiency of the hydrogen can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technology field of making velvet, especially relates to an exhaust device. BACKGROUND

[0002] The making velvet of solar cell refers to: the silicon wafer covered with the oxidation layer is carried out bright extinction treatment, and the making velvet technological process includes:

[0003] a, pre-cleaning: silicon surface treatment;

[0004] b, cleaning: remove surface dirt, organic matter;

[0005] c, making velvet: through the flowing chemical reagent to the silicon wafer extinction treatment, and the chemical reaction formula is:

[0006] 2NaOH+Si+H2O=NaSiO3+H2↑.

[0007] In the process of making velvet technology, a large amount of by-product hydrogen gas is generated, and these hydrogen gas needs to be discharged, however, due to the flammable and explosive characteristics of hydrogen gas, these hydrogen gas cannot be directly discharged, and the hydrogen gas needs to be purified, therefore, we need to provide an exhaust device.

[0008] At present, the exhaust device includes: air inlet pipe, treatment layer, air outlet pipe, the filter purification mechanism is arranged in the treatment layer, and the gas one-way valve is installed at the inlet and outlet respectively, however, due to the large volume of filter purification device, the space occupied is large, which can lead to the large space occupied by the whole exhaust device. UTILITY MODEL CONTENT

[0009] The technical problem to be solved by the utility model is: in order to solve the technical problem that the existing exhaust device occupies large space, the utility model provides an exhaust device, which can reduce the space occupied by the exhaust device through the improvement of the structure of the exhaust device.

[0010] The technical scheme adopted by the utility model to solve the technical problem is: an exhaust device, including: exhaust pipe and spray head, the exhaust pipe is provided with a plurality of air inlet holes, the exhaust pipe is also provided with an air outlet, the spray head is located in the exhaust pipe, and the spray head is located between the air inlet hole and the air outlet, the spray head is provided with a liquid inlet pipe, and the liquid inlet pipe penetrates the exhaust pipe;Wherein: the air inlet hole is located at the bottom of the exhaust pipe, and the air outlet is located at the top of the exhaust pipe.

[0011] Thus, the hydrogen entering the exhaust pipe is filtered and purified by the liquid sprayed by the spray head. Compared with the existing exhaust method, the hydrogen can be filtered and purified by spraying liquid through the spray head only, thereby reducing the space occupied by the entire exhaust device. Meanwhile, the hydrogen flows from bottom to top, and the liquid flows from top to bottom under the action of gravity. The two flow modes are combined, so that the hydrogen and the liquid can be in more sufficient contact, thereby improving the purification efficiency of the hydrogen.

[0012] Further, the adjusting plate is slidably connected with the exhaust pipe and is mounted on the exhaust pipe by a fastener. Thus, the air flow between the air inlet hole and the through hole can be adjusted by adjusting the position of the adjusting plate relative to the exhaust pipe, thereby adjusting the amount of hydrogen entering the exhaust pipe. When the fastener is loosened, the adjusting plate can slide up and down relative to the exhaust pipe to adjust the position of the adjusting plate relative to the exhaust pipe. When the fastener is tightened, the adjusting plate can be fixed on the exhaust pipe.

[0013] Further, the adjusting plate is provided with a plurality of through holes, and the number of the through holes is equal to the number of the air inlet holes.

[0014] Further, when the through holes are in communication with the air inlet holes, the exhaust pipe and the spray head are used for the purification of hydrogen. When the through holes are not in communication with the air inlet holes, hydrogen cannot enter the exhaust pipe, and the exhaust pipe and the spray head do not purify hydrogen.

[0015] Further, the liquid inlet pipe is connected in series with a first valve, and the first valve is located outside the exhaust pipe. Thus, by opening and closing the first valve, the control of whether the spray head sprays liquid can be realized, thereby controlling the filtration and purification process of hydrogen.

[0016] Further, the liquid outlet pipe penetrates the exhaust pipe, and the liquid outlet pipe is located on the side of the exhaust pipe away from the air inlet hole.

[0017] Further, the liquid outlet pipe is connected in series with a second valve, and the second valve is located outside the exhaust pipe. Thus, when the second valve is opened, the sprayed waste liquid after filtration and purification can be discharged.

[0018] Further, the electric air valve and the manual air valve are connected in series on the exhaust pipe, the electric air valve is located on the side of the spray head away from the air inlet hole, and the manual air valve is located on the side of the electric air valve away from the spray head. Thus, by the cooperation of the electric air valve and the manual air valve, the stability of the entire exhaust system can be improved.

[0019] Further, it also includes a pressure gauge connected with the exhaust pipe.

[0020] Further, the exhaust pipe is provided with a plurality of; wherein: the number of the number of the exhaust pipe is equal to the number of the nozzle.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] The hydrogen gas entering into the exhaust pipe is filtered and purified by the liquid sprayed by the nozzle, compared with the existing exhaust mode, the hydrogen gas can be filtered and purified by only spraying liquid by the nozzle, the space occupied by the whole exhaust device can be reduced, at the same time, the flowing mode of the hydrogen gas is from bottom to top, the liquid is sprayed under the action of gravity from top to bottom, the two kinds of flowing modes are integrated, so that the hydrogen gas and the liquid sprayed are more fully contacted, thereby the purification efficiency of the hydrogen gas can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model will be further explained in connection with the drawings and examples.

[0024] Fig. 1 It is the structural schematic diagram of the exhaust device of the utility model;

[0025] Fig. 2 It is the structural schematic diagram of the nozzle installation of the utility model;

[0026] Fig. 3 It is the contrastive view of the exhaust pipe different ventilation of the utility model;

[0027] Fig. 4 It is the structural schematic diagram of the multiple exhaust pipe installation of the utility model.

[0028] In the drawing: 1, exhaust pipe;101, inlet hole;102, gas outlet;2, nozzle;201, liquid inlet pipe;202, first valve;3, adjusting plate;301, through hole;4, fastener;5, liquid outlet pipe;501, second valve;6, electric air valve;7, hand air valve;8, pressure gauge. DETAILED DESCRIPTION

[0029] The utility model will be further explained in connection with the drawings and examples.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] like Figs. 1 to 4 The figure shows a preferred embodiment of the present invention. The exhaust device of this embodiment comprises an exhaust pipe 1 and a nozzle 2. The exhaust pipe 1 is provided with a plurality of air inlets 101 and an air outlet 102. The nozzle 2 is located within the exhaust pipe 1 and between the air inlets 101 and the air outlet 102. The nozzle 2 is provided with a liquid inlet pipe 201 that extends through the exhaust pipe 1. The air inlet 101 is located at the bottom of the exhaust pipe 1, and the air outlet 102 is located at the top of the exhaust pipe 1. Thus, the liquid sprayed by the nozzle 2 filters and purifies hydrogen entering the exhaust pipe 1. Compared to existing exhaust methods, this method can filter and purify hydrogen only by spraying liquid from the nozzle 2, thereby reducing the space occupied by the entire exhaust device. Furthermore, the hydrogen flows from bottom to top, while the sprayed liquid flows from top to bottom under the action of gravity. The combination of these two flow modes ensures more complete contact between the hydrogen and the sprayed liquid, thereby improving the efficiency of hydrogen purification.

[0033] In the embodiment, further comprising: an adjusting plate 3, the adjusting plate 3 is in sliding connection with the exhaust pipe 1, and the adjusting plate 3 is installed on the exhaust pipe 1 through a fastener 4, and the adjusting plate 3 is provided with a plurality of through holes 301; wherein: the number of the through holes 301 is equal to the number of the air inlet holes 101; in the embodiment, when the through holes 301 are in communication with the air inlet holes 101, the exhaust pipe 1 and the nozzle 2 are used for purifying treatment of hydrogen; when the through holes 301 are not in communication with the air inlet holes 101, hydrogen cannot enter the exhaust pipe 1, and the exhaust pipe 1 and the nozzle 2 do not purify the hydrogen. Thus, by adjusting the position of the adjusting plate 3 relative to the exhaust pipe 1, the ventilation volume between the air inlet holes 101 and the through holes 301 can be adjusted, and thus the amount of hydrogen entering the exhaust pipe 1 can be adjusted; when the fastener 4 is in a loosened state, the adjusting plate 3 can slide up and down relative to the exhaust pipe 1 to adjust the position of the adjusting plate 3 relative to the exhaust pipe 1, and when the fastener 4 is in a tightened state, the adjusting plate 3 can be fixed on the exhaust pipe 1.

[0034] In the embodiment, the liquid inlet pipe 201 is connected in series with a first valve 202, and the first valve 202 is located outside the exhaust pipe 1. Thus, by opening and closing the first valve 202, the control of whether the nozzle 2 sprays liquid can be realized, and thus the control of the filtering and purifying process of hydrogen can be realized.

[0035] In the embodiment, further comprising: a liquid outlet pipe 5, the liquid outlet pipe 5 penetrates the exhaust pipe 1, and the liquid outlet pipe 5 is located at a side of the exhaust pipe 1 away from the air inlet hole 101, and the liquid outlet pipe 5 is connected in series with a second valve 501, and the second valve 501 is located outside the exhaust pipe 1. Thus, when the second valve 501 is opened, the sprayed waste liquid after filtering and purifying can be discharged.

[0036] In the embodiment, further comprising: an electric air valve 6 and a manual air valve 7, the electric air valve 6 and the manual air valve 7 are connected in series on the exhaust pipe 1, the electric air valve 6 is located at a side of the nozzle 2 away from the air inlet hole 101, and the manual air valve 7 is located at a side of the electric air valve 6 away from the nozzle 2. Thus, by the cooperation of the electric air valve 6 and the manual air valve 7, the stability of the entire exhaust system can be improved.

[0037] In the embodiment, further comprising: a pressure gauge 8, the pressure gauge 8 is connected with the exhaust pipe 1. Thus, the pressure value in the exhaust pipe 1 can be monitored in real time through the pressure gauge 8.

[0038] In the embodiment, a plurality of exhaust pipes 1 are provided; wherein: the number of the nozzles 2 is equal to the number of the exhaust pipes 1.

[0039] The hydrogen filtering and purification process of the present invention is as follows: first, the air intake volume (i.e., the hydrogen intake volume) of the exhaust pipe 1 is adjusted by the fastener 4; then, after the air intake volume of the exhaust pipe 1 is adjusted, the electric air valve 6 and the manual air valve 7 are opened to put the air outlet 102 in a conducting state, the first valve 202 is opened to put the liquid inlet pipe 201 in a conducting state, and the second valve 501 is opened to put the liquid outlet pipe 5 in a conducting state; finally, the hydrogen to be filtered and purified enters the exhaust pipe 1 from the air inlet 101 and flows from bottom to top, the nozzle 2 sprays liquid, and flows from top to bottom under the action of gravity, and the flowing hydrogen is filtered and purified by the flowing spraying liquid, and the filtered and purified gas is discharged through the air outlet 102, and the filtered and purified waste liquid is discharged through the liquid outlet pipe 5.

[0040] To sum up, the utility model filters and purifies the hydrogen entering the exhaust pipe 1 by spraying liquid through the nozzle 2. Compared with the existing exhaust method, this method can achieve the filtering and purification of hydrogen only by spraying liquid through the nozzle 2, which can reduce the space occupied by the entire exhaust device. At the same time, the flow mode of hydrogen is from bottom to top, and the spraying liquid flows from top to bottom under the action of gravity. The two mutually integrated flow modes make the hydrogen and the spraying liquid more fully contact, thereby improving the purification efficiency of the hydrogen.

[0041] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of this utility model. The technical scope of this utility model is not limited to the content of the specification and must be determined according to the scope of the claims.

Claims

1. An exhaust device, characterized in that: include: An exhaust pipe (1), wherein the exhaust pipe (1) is provided with a plurality of air inlet holes (101), and the exhaust pipe (1) is also provided with an air outlet (102); A nozzle (2), the nozzle (2) being located in the exhaust pipe (1), and the nozzle (2) being located between the air inlet (101) and the air outlet (102), the nozzle (2) being provided with a liquid inlet pipe (201), and the liquid inlet pipe (201) passing through the exhaust pipe (1); Wherein: the air inlet (101) is located at the bottom of the exhaust pipe (1), and the air outlet (102) is located at the top of the exhaust pipe (1).

2. The exhaust device according to claim 1, characterized in that Also includes: An adjustment plate (3), the adjustment plate (3) is slidably connected to the exhaust pipe (1), and the adjustment plate (3) is mounted on the exhaust pipe (1) via a fastener (4).

3. The exhaust device according to claim 2, characterized in that The adjustment plate (3) is provided with a plurality of through holes (301); Wherein: the number of the through holes (301) is equal to the number of the air inlet holes (101).

4. The exhaust device according to claim 3, characterized in that When the through hole (301) is connected to the air inlet (101), the exhaust pipe (1) and the nozzle (2) are used for purifying hydrogen; When the through hole (301) is not connected to the air inlet (101), hydrogen cannot enter the exhaust pipe (1), and the exhaust pipe (1) and the nozzle (2) do not purify the hydrogen.

5. The exhaust device according to claim 1, characterized in that The liquid inlet pipe (201) is connected in series with a first valve (202), and the first valve (202) is located outside the exhaust pipe (1).

6. The exhaust device according to claim 1, characterized in that Also includes: A liquid outlet pipe (5), the liquid outlet pipe (5) passes through the exhaust pipe (1), and the liquid outlet pipe (5) is located on a side of the exhaust pipe (1) away from the air inlet hole (101).

7. The exhaust device according to claim 6, characterized in that The liquid outlet pipe (5) is connected in series with a second valve (501), and the second valve (501) is located outside the exhaust pipe (1).

8. The exhaust device according to claim 1, characterized in that Also includes: An electric air valve (6) and a manual air valve (7), wherein the electric air valve (6) and the manual air valve (7) are both connected in series to the exhaust pipe (1), the electric air valve (6) is located on a side of the nozzle (2) away from the air inlet (101), and the manual air valve (7) is located on a side of the electric air valve (6) away from the nozzle (2).

9. The exhaust device according to claim 1, characterized in that Also includes: A pressure gauge (8) is connected to the exhaust pipe (1).

10. The exhaust device according to claim 1, characterized in that The exhaust pipe (1) is provided with a plurality of exhaust pipes; Wherein: the number of the nozzles (2) is equal to the number of the exhaust pipes (1).

Images