Gas-collecting hood sealing device

Abstract

The utility model provides a gas-collecting hood sealing device, which belongs to the technical field of environmental protection waste gas treatment and comprises a first water stop strip, membrane cloth and a pressing strip which are sequentially arranged from bottom to top, the pressing strip is connected to a top plate of a pool body through a connecting part, and an elastic part for providing pressing force is arranged between the pressing strip and the membrane cloth. When the top plate of the pool body is uneven, the elastic component extends on the concave surface of the top plate of the pool body and shrinks on the convex surface of the top plate of the pool body, so that the edge of the membrane cloth and the first water stop strip can be tightly attached to the concave surface and the convex surface of the top plate of the pool body. When foundation sinking occurs in the concrete pool body or the membrane structure deforms after long-term operation, the elastic component stretches and retracts accordingly to apply pressure to the membrane cloth and the first water stop strip all the time, it is guaranteed that the membrane cloth and the first water stop strip are attached to a top plate of the concrete pool body for a long time, and the problem that membrane structure equipment deforms or gaps are generated due to sinking of the concrete pool body is solved; and the later maintenance is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the environmental protection waste gas treatment technical field, more specifically, it relates to a fume hood sealing device. BACKGROUND

[0002] The fume hood sealing device is used for the sealing between the membrane structure fume hood and the concrete pool body of the closed pool body of the sewage treatment field in municipal, petroleum, chemical and other industries. The traditional fume hood usually adopts the sealing process of ''flat steel pressing strip + rubber water stop strip''. That is, the rubber water stop strip is laid on the concrete pool body top plate first, then the membrane cloth is laid on the rubber water stop strip, and finally the flat steel pressing strip is pressed on the membrane cloth and the rubber water stop strip through the expansion bolt. The structure has the following disadvantages:

[0003] (1) The concrete pool body top plate is not flat, resulting in gaps between the flat steel pressing strip and the concrete pool body top plate. Thus, the rubber water stop strip and the membrane cloth are insufficiently stressed in some places, resulting in gaps between the membrane cloth and the concrete pool body top plate. The condensate in the membrane structure fume hood will flow along the membrane cloth to the sealing part of the fume hood and the concrete pool body top plate, causing leakage. Usually, the above-mentioned condensate also contains volatile pollutants and impurities in the sewage tank. Long-term condensate leakage will cause obvious stains at the sealing part, pollute the membrane cloth, and cause unpleasant odor and even moss.

[0004] (2) The stress of the flat steel pressing strip comes entirely from the expansion bolt. When the concrete pool body sinks or the membrane structure equipment deforms during long-term operation, some flat steel pressing strips will lose the fastening force from the expansion bolt, causing the gaps between the rubber water stop strip, the membrane cloth and the concrete pool body top plate to increase, and frequent maintenance is required later.

[0005] (3) During installation, since the flat steel pressing strip has no fixed side plate, it is easy to cause the rubber water stop strip to deviate during hoisting of the membrane structure fume hood, resulting in the need for time-consuming and laborious inspection and correction of the position of the rubber water stop strip. The accurate installation of the rubber water stop strip is difficult. In addition, there may be cases where the rubber water stop strip is not installed in place, and remedial measures need to be taken later. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a fume hood sealing device to solve the problem of poor sealing performance of the existing sealing device when the concrete pool body top plate is not flat or the concrete pool body sinks.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a fume hood sealing device, which comprises:

[0008] A first water stop strip is used to be placed on the pool body top plate.

[0009] A membrane cloth is arranged above the first water stop strip.

[0010] a pressing strip, arranged above the membrane cloth;

[0011] a connecting component, for connecting the pressing strip and the pool top plate;

[0012] a resilient component, arranged between the pressing strip and the membrane cloth, for applying a pressing force to the membrane cloth.

[0013] Optionally, the pressing strip is provided with a pair of limiting portions, which are arranged on both sides of the pressing strip, respectively.

[0014] Optionally, the cross section of the pressing strip is inverted U-shaped and forms an accommodating space, and the first water stop strip, the edge of the membrane cloth and the resilient component are arranged in the accommodating space.

[0015] Optionally, the gas collecting cover sealing device further comprises:

[0016] a second water stop strip, arranged between the membrane cloth and the resilient component.

[0017] Optionally, the edge of the membrane cloth is folded into double layers downward, and the edge of the membrane cloth extends into the pool body and forms a curtain.

[0018] Optionally, the resilient component comprises:

[0019] a spring, the upper end of which is connected with the lower surface of the pressing strip;

[0020] a backing plate, the upper surface of which is connected with the lower end of the spring, and the lower surface of which is in contact with the membrane cloth.

[0021] Optionally, the first water stop strip is made of water-swelling material.

[0022] Optionally, the connecting component is an expansion bolt, which passes through the pressing strip, the membrane cloth, the first water stop strip and the pool top plate in sequence.

[0023] Optionally, the resilient component is a plurality of, which are arranged uniformly along the length direction of the pressing strip.

[0024] Optionally, the connecting component is a plurality of, which are arranged uniformly along the length direction of the pressing strip.

[0025] The utility model discloses a beneficial effect lies in: provide a fume hood sealing device, including by the first water stop strip, membrane cloth and the pressing strip of the arrangement in proper order from below to top, and the pressing strip is connected to the pool top plate through connecting component, and the elastic component that provides the compression force is established between the pressing strip and membrane cloth. When the pool top plate is uneven, the elastic component is elongated on the concave surface of pool top plate, and contracts on the convex surface of pool top plate, guarantees the edge of membrane cloth and the first water stop strip can be closely attached to the concave surface and the convex surface of pool top plate. When the concrete pool body foundation subsides or the membrane structure long -term operation deformation occurs, the elastic component telescopes along with it, always exerts pressure on membrane cloth and the first water stop strip, guarantees that membrane cloth and the first water stop strip long -term attach concrete pool top plate, avoids the problem that the membrane structure equipment deformation or concrete pool body subsidence produces the gap, has reduced the maintenance of later period.

[0026] Other features and advantages of the present utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0027] The above and other objects, features and advantages of the present utility model will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout the several views, and wherein the exemplary embodiments of the present utility model are shown.

[0028] Figure 1 Fig. 1 shows a schematic structural view of a fume hood sealing device according to one embodiment of the present utility model.

[0029] Figure 2 Fig. 2 shows another schematic structural view of a fume hood sealing device according to one embodiment of the present utility model.

[0030] Figure 3 Fig. 3 shows a schematic structural view of a fume hood sealing device installed on a pool top plate according to one embodiment of the present utility model.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 1. first water stop strip;

[0033] 2. membrane cloth; 21, curtain

[0034] 3. pressing strip; 31, limiting part;

[0035] 4. connecting component;

[0036] 5. elastic component; 51, spring; 52, pad;

[0037] 6. pool top plate. DETAILED DESCRIPTION

[0038] Preferred embodiments of the present application will be described in more detail below. Although the following describes preferred embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application is more thoroughly and completely conveyed to those skilled in the art, and so that the scope of the present application is fully conveyed to those skilled in the art.

[0039] As shown in Figure 1 and 2 The present embodiment provides a gas collecting hood sealing device, comprising:

[0040] A first water stop 1 is used to be placed on the pool top plate 6;

[0041] A membrane cloth 2 has its edges arranged above the first water stop 1;

[0042] A pressing strip 3 is arranged above the membrane cloth 2;

[0043] A connecting component 4 is used to connect the pressing strip 3 and the pool top plate 6;

[0044] An elastic component 5 is arranged between the pressing strip 3 and the membrane cloth 2, and the elastic component 5 applies a pressing force to the membrane cloth 2.

[0045] Specifically, when the pool top plate 6 is uneven, the elastic component 5 is elongated on the concave surface of the pool top plate 6 and is contracted on the convex surface of the pool top plate 6, so as to ensure that the edges of the membrane cloth 2 and the first water stop 1 can be tightly attached to the concave surface and the convex surface of the pool top plate 6. When the concrete pool body is subjected to foundation subsidence or the membrane structure is subjected to long-term deformation, the elastic component 5 is stretched and contracted accordingly, and always applies a pressing force to the membrane cloth 2 and the first water stop 1, so as to ensure that the membrane cloth 2 and the first water stop 1 are attached to the concrete pool top plate for a long time, avoid the problem of gaps caused by deformation of the membrane structure or subsidence of the concrete pool, and reduce the later maintenance.

[0046] Optionally, the pressing strip 3 is provided with a pair of limiting portions 31, and the pair of limiting portions 31 are arranged on both sides of the pressing strip 3, respectively.

[0047] Specifically, during installation, the pair of limiting portions 31 can ensure that the first water stop 1 will not be displaced and is always below the pressing strip 3, so as to make the sealing more reliable.

[0048] In the present embodiment, the pressing strip 3 has a cross-section in the shape of an inverted U and forms an accommodating space, and the first water stop 1, the edges of the membrane cloth 2 and the elastic component 5 are all arranged in the accommodating space.

[0049] Optionally, the gas hood sealing device further comprises a second sealing strip (not shown in the figure), which is arranged between the membrane cloth 2 and the elastic component 5.

[0050] Specifically, the double sealing strips can further improve the sealing performance.

[0051] As shown in Figure 3 Optionally, the edges of the membrane cloth 2 are folded downward into double layers, the edges of the membrane cloth 2 extend into the pool body and form a curtain 21.

[0052] Specifically, the curtain 21 formed by folding the edges of the membrane cloth 2 can reduce or slow down the contact of water vapor with the first sealing strip 1, and the condensate formed by the liquefaction of water vapor on the membrane cloth 2 flows back into the pool along the curtain 21, effectively reducing the accumulation of condensate at the first sealing strip 1.

[0053] In the embodiment, the elastic component 5 comprises:

[0054] a spring 51, the upper end of the spring 51 being connected with the lower surface of the pressing strip 3;

[0055] a pad 52, the upper surface of the pad 52 being connected with the lower end of the spring 51, and the lower surface of the pad 52 being in contact with the membrane cloth 2.

[0056] Optionally, the first sealing strip 1 is made of water-swelling material.

[0057] Specifically, the use of water-swelling material for the first sealing strip 1 can prevent the condensate in the gas hood from leaking outward.

[0058] In the embodiment, the connecting component 4 is an expansion bolt, which sequentially penetrates the pressing strip 3, the membrane cloth 2, the first sealing strip 1, and the pool body top plate 6.

[0059] Optionally, the elastic component 5 is a plurality of elastic components 5, which are uniformly arranged along the length direction of the pressing strip 3.

[0060] Specifically, the plurality of elastic components 5 are uniformly arranged along the length direction of the pressing strip 3, which can uniformly apply pressure to the membrane cloth 2 and the first sealing strip 1, thereby facilitating sealing.

[0061] Optionally, the connecting component 4 is a plurality of connecting components 4, which are uniformly arranged along the length direction of the pressing strip 3.

[0062] Specifically, the plurality of connecting components 4 are uniformly arranged along the length direction of the pressing strip 3, which can make the installation of the pressing strip 3 more secure, thereby facilitating sealing.

[0063] The installation method of the gas hood sealing device in the embodiment is as follows:

[0064] Firstly, the first water stop 1 is laid on the pool top plate 6, then the edge of the membrane cloth 2 is folded two layers and laid on the first water stop 1, the edge of the membrane cloth 2 extends into the concrete pool body, forming a vertical curtain 21 with a downward distance of about 100mm, the second water stop is laid above the edge of the membrane cloth 2, then the inverted U-shaped pressing strip 3 is laid on the second water stop, the pressing strip 3 is welded with a set of elastic components 5 every 200-300mm distance in the inside, the elastic components 5 include 51 and the backing plate 52. The pressing strip 3 is holed at the position between two adjacent elastic components 5, the pressing strip 3, the second water stop, the membrane cloth 2 and the first water stop 1 are fixed on the pool top plate 6 through the expansion bolt. After the expansion bolt is fixed, the spring 51 and the backing plate 52 apply pressure on the membrane cloth 2, the first water stop 1 and the second water stop for a long time, ensuring the sealing property.

[0065] The above has described the various embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A gas collecting hood sealing device, characterized in that, include: The first water-stop strip (1) is used to be placed on the top plate (6) of the pool body; Membrane fabric (2), the edge of which is positioned above the first waterstop strip (1); Pressure strip (3), the pressure strip (3) is disposed above the membrane fabric (2); A connecting component (4) is used to connect the pressure strip (3) to the top plate (6) of the pool body; An elastic component (5) is disposed between the pressure strip (3) and the membrane fabric (2), and the elastic component (5) applies a pressing force to the membrane fabric (2).

2. The gas collecting hood sealing device according to claim 1, characterized in that, The pressure strip (3) is provided with a pair of limiting parts (31), and the pair of limiting parts (31) are respectively disposed on both sides of the pressure strip (3).

3. The gas collecting hood sealing device according to claim 2, characterized in that, The pressure strip (3) has an inverted U-shaped cross section and forms a receiving space. The first waterstop strip (1), the edge of the membrane cloth (2) and the elastic component (5) are all located in the receiving space.

4. The gas collecting hood sealing device according to claim 1, characterized in that, Also includes: The second water-stop strip is disposed between the membrane (2) and the elastic member (5).

5. The gas collecting hood sealing device according to claim 1, characterized in that, The edge of the membrane (2) is folded downward to form a double layer, and the edge of the membrane (2) extends into the pool body to form a curtain (21).

6. The gas collecting hood sealing device according to claim 1, characterized in that, The elastic component (5) includes: A spring (51), the upper end of which is connected to the lower surface of the pressure bar (3); A pad (52) is provided, the upper surface of which is connected to the lower end of the spring (51), and the lower surface of which is in contact with the membrane cloth (2).

7. The gas collecting hood sealing device according to claim 1, characterized in that, The first waterstop strip (1) is made of a material that expands when exposed to water.

8. The gas collecting hood sealing device according to claim 1, characterized in that, The connecting component (4) is an expansion bolt, which passes through the pressure strip (3), the membrane cloth (2), the first water-stop strip (1), and the top plate (6) of the pool body in sequence.

9. The gas collecting hood sealing device according to claim 1, characterized in that, There are multiple elastic components (5), and the multiple elastic components (5) are evenly arranged along the length direction of the pressure strip (3).

10. The gas collecting hood sealing device according to claim 1, characterized in that, There are multiple connecting parts (4), and the multiple connecting parts (4) are evenly arranged along the length direction of the pressure strip (3).

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