An automatic exhaust pressure relief purification safety manhole cover device

Abstract

The present invention discloses an automatic exhaust, pressure relief and purification safety manhole cover device, comprising a manhole cover, a concave platform is provided on the manhole cover, and an exhaust component, a connecting fastener, a filter component and a pressure relief component are connected to the concave platform; wherein the exhaust component is connected to the filter component through the connecting fastener, and the filter component is connected to the pressure relief component; wherein the exhaust component is connected to the manhole cover and is arranged below the manhole cover; wherein the filter component is connected to the bottom of the exhaust component through the connecting fastener; wherein the pressure relief component is arranged below the filter component; wherein the manhole cover, the exhaust component, the connecting fastener, the filter component and the pressure relief component are arranged in sequence from top to bottom. This device can not only prevent the sewage well pressure from being too high, but also purify the waste gas before discharging it, effectively reducing the waste gas treatment frequency and waste gas treatment volume.

Description

Technical Field

[0001] The invention relates to the field of waste gas emission, and in particular to a purification device for waste gas emission from underground wells. Background Art

[0002] Waste gas often overflows from manhole covers in sewage pools and sewage ditches, causing environmental pollution and seriously affecting the physical and mental health of nearby people. As the country pays more and more attention to environmental protection, waste gas from sewage pools and sewage ditches will not be allowed to overflow from manhole covers. Due to the presence of volatile gases and microbial fermentation in waste gas from sewage pools or sewage ditches, the pressure inside will become higher and higher. If the manhole covers and sewage ditches are simply sealed, the pressure will be too high and the sealing effect will be poor. In severe cases, the manhole cover may be opened or the sewage ditch pipe may rupture.

[0003] Therefore, it is necessary to develop a manhole cover that can automatically exhaust and relieve pressure and purify. Summary of the invention

[0004] The object of the present invention is to at least partially overcome the defects of the prior art and provide an automatic exhaust, pressure relief and purification safety manhole cover device.

[0005] The present invention also aims to provide an automatic exhaust pressure relief purification safety manhole cover device, which can prevent the sewage well pressure from being too high and purify the exhaust gas before discharging it.

[0006] The present invention also aims to provide an automatic exhaust pressure relief purification safety manhole cover device, which effectively reduces the frequency and amount of waste gas treatment.

[0007] To achieve the above purpose or one of the purposes, the technical solution of the present invention is as follows:

[0008] An automatic exhaust, pressure relief and purification safety manhole cover device comprises a manhole cover, wherein a concave platform is provided on the manhole cover, and an exhaust component, a connecting fastener, a filter component and a pressure relief component are connected to the concave platform;

[0009] Wherein, the exhaust assembly is connected to the filter assembly through a connecting fastener, and the filter assembly is connected to the pressure relief assembly;

[0010] Wherein, the exhaust assembly is connected to the manhole cover and is arranged below the manhole cover;

[0011] Wherein, the filter assembly is connected to the lower part of the exhaust assembly through a connecting fastener;

[0012] Wherein, the pressure relief component is arranged below the filter component;

[0013] Among them, the manhole cover, exhaust assembly, connecting fastener, filter assembly and pressure relief assembly are arranged in sequence from top to bottom.

[0014] According to a preferred embodiment of the present invention, the exhaust assembly includes a through hole arranged at the center of the recess, an exhaust pipe passing through the through hole, an exhaust seat arranged in the recess and sleeved on the exhaust pipe, a waterproof and breathable membrane arranged on the exhaust seat and located at the top of the exhaust pipe, and an exhaust cap arranged on the exhaust seat.

[0015] According to a preferred embodiment of the present invention, the connecting fastener includes a quick-lock upper seat connecting piece arranged at the bottom of the exhaust pipe, and a quick-lock upper seat arranged at the bottom of the quick-lock upper seat connecting piece, and through holes are provided at the centers of the quick-lock upper seat connecting piece and the quick-lock upper seat.

[0016] According to a preferred embodiment of the present invention, the filter assembly includes a quick-lock lower seat arranged at the bottom of the quick-lock upper seat, a filter barrel body arranged at the bottom of the quick-lock lower seat, filter material arranged in the filter barrel body, an air permeation net arranged in the filter barrel body and below the filter material, a bottom plate arranged at the bottom of the filter barrel body, and a pressure relief assembly arranged on the bottom plate.

[0017] According to a preferred embodiment of the present invention, the pressure relief assembly includes a sealing seat arranged on the bottom plate, an airflow groove arranged in the sealing seat, a sealing block arranged in the airflow groove, and a counterweight block arranged below the sealing seat and connected to the bottom of the sealing block.

[0018] According to a preferred embodiment of the present invention, the exhaust cap is lower than the manhole cover surface, and a plurality of exhaust holes are evenly distributed around the exhaust cap.

[0019] According to a preferred embodiment of the present invention, the waterproof breathable membrane is a nano material, through which gas can pass but water cannot pass under a set pressure.

[0020] According to a preferred embodiment of the present invention, a gap is left between the counterweight block and the sealing seat of the pressure relief assembly as an exhaust gas discharge channel, and the size of the gap is determined according to the exhaust volume.

[0021] According to a preferred embodiment of the present invention, the weight and cross-sectional size of the counterweight block are determined according to the gas pressure that the well is designed to withstand.

[0022] According to a preferred embodiment of the present invention, a plurality of lifting holes are distributed at equal angles on the manhole cover near the outer edge.

[0023] According to a preferred embodiment of the present invention, the depth of the recess matches the exhaust component.

[0024] According to a preferred embodiment of the present invention, the inner diameter of the through hole is the same as the outer diameter of the exhaust pipe.

[0025] According to a preferred embodiment of the present invention, the exhaust seat has a convex longitudinal cross-section.

[0026] According to a preferred embodiment of the present invention, a No. 1 sealing ring and a No. 2 sealing ring are provided between the exhaust seat and the exhaust cap.

[0027] According to a preferred embodiment of the present invention, the upper portion of the exhaust pipe is flush with the second sealing ring.

[0028] According to a preferred embodiment of the present invention, the exhaust pipe is threadedly connected to the exhaust seat.

[0029] According to a preferred embodiment of the present invention, the exhaust cap is threadedly connected to the exhaust seat.

[0030] According to a preferred embodiment of the present invention, the exhaust pipe is connected to the manhole cover recess via a No. 1 bolt kit.

[0031] According to a preferred embodiment of the present invention, a No. 3 sealing ring is provided between the No. 1 bolt kit and the manhole cover.

[0032] According to a preferred embodiment of the present invention, the quick-lock upper seat connector is connected to the exhaust pipe via a No. 2 bolt kit.

[0033] According to a preferred embodiment of the present invention, a No. 4 sealing ring is provided between the No. 2 bolt kit and the quick lock upper seat connecting piece.

[0034] According to a preferred embodiment of the present invention, the exhaust pipe is threadedly connected to the quick-lock upper seat.

[0035] According to a preferred embodiment of the present invention, the quick lock upper seat connecting piece is threadedly connected to the quick lock upper seat.

[0036] According to a preferred embodiment of the present invention, the longitudinal cross-section of the quick-lock upper seat connecting member is T-shaped.

[0037] According to a preferred embodiment of the present invention, a convex through hole is provided in the quick-lock upper seat connecting piece.

[0038] According to a preferred embodiment of the present invention, the bottom plate is located below the filter material.

[0039] According to a preferred embodiment of the present invention, the bottom plate is provided with an opening to cooperate with the pressure relief assembly.

[0040] According to a preferred embodiment of the present invention, the sealing seat is connected to the base plate via a No. 3 bolt kit.

[0041] According to a preferred embodiment of the present invention, the longitudinal cross-section of the sealing seat is convex.

[0042] According to a preferred embodiment of the present invention, the air flow groove is T-shaped.

[0043] According to a preferred embodiment of the present invention, the sealing block is T-shaped, and a No. 5 sealing ring is arranged on the top of the sealing block and located on the airflow groove.

[0044] According to a preferred embodiment of the present invention, the counterweight block is connected to the sealing block via a nut.

[0045] According to a preferred embodiment of the present invention, a gasket is provided between the counterweight block and the No. 4 bolt kit.

[0046] The beneficial effects of the present invention are as follows: the present invention is mainly aimed at harmful waste gas overflowing from sewage wells. It can not only prevent the pressure of sewage wells from being too high, but also absorb and decompose harmful gases through filtering components when the well pressure is released, and turn them into harmless gases for discharge, thereby ensuring the safety of wells, and not discharging harmful gases to the outside, thus protecting the environment.

[0047] Another beneficial effect of the present invention is that when the pressure in the underground well is lower than the design pressure, the waste gas can be locked in the underground well without treatment, and the pressure is released when the pressure reaches the design pressure, which reduces the frequency and amount of waste gas treatment and ensures safety. This effect becomes more and more obvious when the underground well pressure can be maintained at a low level for a long time.

[0048] The device can be used in inspection wells and drainage wells of sewage pools and sewage ditches in the chemical, pharmaceutical, food and other industries, and can also be used in drainage wells in other fields such as municipal drainage ditches. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to facilitate the understanding of the novel technical solution of the present invention, the present invention is described in detail with reference to the following specific embodiments and drawings.

[0050] Figure 1 It is a front view of the present invention;

[0051] Figure 2 A top view of the present invention;

[0052] Figure 3 It is a cross-sectional schematic diagram of the present invention;

[0053] Figure 4 It is an enlarged cross-sectional schematic diagram of the exhaust assembly of the present invention;

[0054] Figure 5 It is an enlarged cross-sectional schematic diagram of the pressure relief assembly of the present invention;

[0055] Figure 6 It is a schematic diagram of the present invention installed on a well base;

[0056] Figure 7 It is a schematic diagram of the pressure relief exhaust flow direction of the present invention;

[0057] Figure 8It is an enlarged schematic diagram of the exhaust flow direction of the pressure relief assembly of the present invention.

[0058] 1- manhole cover; 2- recessed platform; 3- exhaust assembly; 4- connecting fastener; 5- filter assembly; 6- pressure relief assembly; 7- exhaust pipe; 8- exhaust seat; 9- waterproof breathable membrane; 10- exhaust cap; 11- quick lock upper seat connector; 12- quick lock upper seat; 13- filter barrel; 14- filter material; 15- bottom plate; 16- sealing seat; 17- air flow groove; 18- sealing block; 19- counterweight block; 20- lifting hole; 21- air mesh; 22- quick lock lower seat. DETAILED DESCRIPTION

[0059] Exemplary embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements. In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may also be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0060] like Figures 1 to 8 As shown, this specific embodiment adopts the following technical scheme: an automatic exhaust, pressure relief and purification safety manhole cover device, comprising a manhole cover 1, a recessed platform 2 is provided on the manhole cover 1, and an exhaust component 3, a connecting fastener 4, a filter component 5 and a pressure relief component 6 are connected to the recessed platform 2; wherein the exhaust component 3 is connected to the filter component 5 through the connecting fastener 4, and the filter component 5 is connected to the pressure relief component 6; wherein the exhaust component 3 is connected to the manhole cover 1 and is arranged below the manhole cover 1; wherein the filter component 5 is connected to the below of the exhaust component 3 through the connecting fastener 4; wherein the pressure relief component 6 is arranged below the filter component 5; wherein the manhole cover 1, the exhaust component 3, the connecting fastener 4, the filter component 5 and the pressure relief component 6 are arranged in sequence from top to bottom.

[0061] Among them, the exhaust component 3 includes a through hole arranged at the center of the recessed platform 2, an exhaust pipe 7 passing through the through hole, an exhaust seat 8 arranged in the recessed platform 2 and sleeved on the exhaust pipe 7, a waterproof and breathable membrane 9 arranged on the exhaust seat 8 and located at the top of the exhaust pipe 7, and an exhaust cap 10 arranged on the exhaust seat 8; the connecting fastener 4 includes a quick lock upper seat connector 11 arranged at the bottom of the exhaust pipe 7, a quick lock upper seat 12 arranged at the bottom of the quick lock upper seat connector 11, and the quick lock upper seat connector 11 and the quick lock upper seat 12 are both provided with a through hole at the center; the filter component 5 includes a quick lock lower seat 22 arranged at the bottom of the quick lock upper seat 12, a filter material barrel body 13 arranged at the bottom of the quick lock lower seat 22, a filter material 14 arranged in the filter material barrel body 13, and a filter material 14 arranged in the filter material barrel body 13 and located below the filter material 14, a bottom plate 15 arranged at the bottom of the filter material barrel 13, and a pressure relief component 6 arranged on the bottom plate 15; the pressure relief component 6 includes a sealing seat 16 arranged on the bottom plate 15, an air flow groove 17 arranged in the sealing seat 16, a sealing block 18 arranged in the air flow groove 17, and a counterweight block 19 arranged below the sealing seat 16 and connected to the bottom of the sealing block 18; the exhaust cap 10 is lower than the manhole cover 1, and a plurality of exhaust holes are evenly distributed around the exhaust cap 10; the waterproof breathable membrane 9 is a nano material, which can pass gas under a set pressure, but water cannot pass; a gap is left between the counterweight block 19 of the pressure relief component 6 and the sealing seat 16 as an exhaust gas discharge channel, and the size of the gap depends on The exhaust volume is determined; the weight and cross-sectional size of the counterweight block 19 need to be determined according to the designed gas pressure of the well; the manhole cover 1 is provided with a plurality of lifting holes 20 distributed at equal angles near the outside; the depth of the recess 2 matches the exhaust component 3; the inner diameter of the through hole is the same as the outer diameter of the exhaust pipe 7; the longitudinal cross-section of the exhaust seat 8 is convex; a No. 1 sealing ring and a No. 2 sealing ring are provided between the exhaust seat 8 and the exhaust cap 10; the upper part of the exhaust pipe 7 is flush with the No. 2 sealing ring; the exhaust pipe 7 is threadedly connected to the exhaust seat 8; the exhaust cap 10 is threadedly connected to the exhaust seat 8; the exhaust pipe 7 is connected to the recess 2 of the manhole cover 1 by a No. 1 bolt kit; a No. 3 sealing ring is provided between the No. 1 bolt kit and the manhole cover 1; the quick lock upper seat connector 1 1 is connected to the exhaust pipe 7 through a No. 2 bolt kit; a No. 4 sealing ring is provided between the No. 2 bolt kit and the quick lock upper seat connector 11; the exhaust pipe 7 is threadedly connected to the quick lock upper seat 12; the quick lock upper seat connector 11 is threadedly connected to the quick lock upper seat 12; the longitudinal section of the quick lock upper seat connector 11 is T-shaped; a convex through hole is provided in the quick lock upper seat connector 11; the bottom plate 15 is located below the filter material 14; an opening is provided on the bottom plate 15 to cooperate with the pressure relief component 6; the sealing seat 16 is connected to the bottom plate 15 through a No. 3 bolt kit; the longitudinal section of the sealing seat 16 is convex; the air flow groove 17 is T-shaped; the sealing block 18 is T-shaped, and a No. 5 sealing ring is arranged on the top of the sealing block 18 and located on the air flow groove 17;The counterweight block 19 is connected to the sealing block 18 through a nut; a gasket is provided between the counterweight block 19 and the No. 4 bolt set. ;

[0062] The use state of the present invention is: Figure 1 As shown, the automatic exhaust, pressure relief and purification safety manhole cover 1 device described in the present invention includes a manhole cover 1, an exhaust component 3, a filter component 5, a pressure relief component 6 and a connecting fastener 4.

[0063] like Figure 1 As shown in FIG6 , when the present invention is installed, a sealing gasket is first placed on the sinking table of the ground well seat, and then the device of the present invention is lifted from the lifting hole 20 into the ground well by a tool, and the ground well cover 1 is pressed onto the sealing gasket on the sinking table of the well seat.

[0064] like Figure 6 When the waste gas pressure of the volatilized sewage in the well is lower than the design pressure, that is, the waste gas pressure is not enough to lift the seal block 18, the counterweight block 19 and the seal composed of the nut and the gasket, the waste gas is locked in the well. If it is necessary to adjust the design pressure in actual use, the size and thickness of the counterweight block 19 in the pressure relief assembly 6 can be adjusted until the counterweight meets the user's needs.

[0065] like Figure 7 , 8 When the waste gas pressure of the volatilized sewage in the well is greater than the design pressure, the waste gas pressure will lift the seal composed of the sealing block 18, the counterweight block 19, the nut and the gasket, and the waste gas will first pass through the gap between the counterweight block 19 and the sealing seat 16, and then enter the air flow channel separated by the sealing seat 16 and the T-shaped sealing block 18, and then pass through the air flow channel separated by the sealing block 18 and the sealing ring 5, and flow into the bottom space of the filter assembly 5, and then pass through the air net 21, and enter the filter material 14 in the barrel of the filter assembly 5, and adsorb and react in the filter material 14 to generate harmless gas, and then come out from the quick lock lower seat 22 and enter the exhaust assembly 3. The harmless gas enters the exhaust pipe 7 from the exhaust channel of the quick lock upper seat 12 of the exhaust assembly 3, and then comes out through the waterproof breathable membrane 9, and is discharged to the external environment through the exhaust hole of the exhaust cap 10, completing an exhaust process.

[0066] like Figure 1,2,3,4,6, when the filter material 14 in the filter assembly 5 expires due to expiration of its service life, it needs to be replaced. At this time, it is necessary to use a tool to lift the entire device of the present invention out of the ground well seat from the lifting hole 20 of the ground well cover 1. Then open the connecting fastener 4, remove the filter assembly 5 and the pressure relief assembly 6 from the device together; then pour out the filter material 14 in the filter assembly 5 from the quick lock lower seat 22, and replace it with a new filter material 14, and re-install it into the device from the quick lock lower seat 22 through the quick lock buckle, and then use a tool to put the device into the ground well from the lifting hole 20 of the well cover 1, and press the well cover 1 on the sealing gasket on the well seat sinking platform to complete a material replacement process.

[0067] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic exhaust pressure relief purification safety manhole cover device, characterized in that: It comprises a manhole cover (1), wherein the manhole cover (1) is provided with a recessed platform (2), and the recessed platform (2) is connected to an exhaust component (3), a connecting fastener (4), a filter component (5) and a pressure relief component (6); The exhaust assembly (3) is connected to the filter assembly (5) via a connecting fastener (4), and the filter assembly (5) is connected to the pressure relief assembly (6); Wherein, the exhaust assembly (3) is connected to the manhole cover (1) and is arranged below the manhole cover (1); Wherein, the filter assembly (5) is connected to the lower part of the exhaust assembly (3) through a connecting fastener (4); Wherein, the pressure relief component (6) is arranged below the filter component (5); The manhole cover (1), the exhaust assembly (3), the connecting fastener (4), the filter assembly (5) and the pressure relief assembly (6) are arranged in sequence from top to bottom; The depth of the recessed platform (2) matches that of the exhaust component (3); The exhaust assembly (3) comprises a through hole No. 1 arranged at the center of the concave platform (2), an exhaust pipe (7) penetrating the through hole No. 1, an exhaust seat (8) arranged in the concave platform (2) and sleeved on the exhaust pipe (7), a waterproof and breathable membrane (9) arranged on the exhaust seat (8) and located at the top of the exhaust pipe (7), and an exhaust cap (10) arranged on the exhaust seat (8); The connecting fastener (4) comprises a quick-lock upper seat connecting piece (11) arranged at the bottom of the exhaust pipe (7), and a quick-lock upper seat (12) arranged at the bottom of the quick-lock upper seat connecting piece (11), and the quick-lock upper seat connecting piece (11) and the quick-lock upper seat (12) are both provided with a No. 2 through hole at the center; The filter assembly (5) comprises a quick-lock lower seat (22) arranged at the bottom of the quick-lock upper seat (12), a filter material barrel body (13) arranged at the bottom of the quick-lock lower seat (22), filter material (14) arranged in the filter material barrel body (13), an air permeation net (21) arranged in the filter material barrel body (13) and below the filter material (14), and a bottom plate (15) arranged at the bottom of the filter material barrel body (13).

2. The automatic exhaust pressure relief and purification safety manhole cover device according to claim 1 is characterized in that: The pressure relief assembly (6) comprises a sealing seat (16) whose top passes through the bottom plate (15), an air flow groove (17) arranged in the sealing seat (16), a sealing block (18) arranged in the air flow groove (17), and a counterweight block (19) arranged below the sealing seat (16) and connected to the bottom of the sealing block (18).

3. The automatic exhaust pressure relief and purification safety manhole cover device according to claim 1 is characterized in that: The exhaust cap (10) is lower than the surface of the manhole cover (1), and a plurality of exhaust holes are provided on the exhaust cap (10).

4. The automatic exhaust pressure relief and purification safety manhole cover device according to claim 1 is characterized in that: A plurality of lifting holes (20) are distributed on the manhole cover (1).

5. The automatic exhaust pressure relief and purification safety manhole cover device according to claim 1 is characterized in that: The longitudinal cross section of the quick lock upper seat connecting piece (11) is T-shaped, and a convex through hole is provided in the quick lock upper seat connecting piece (11).

6. The automatic exhaust pressure relief and purification safety manhole cover device according to claim 1 is characterized in that: The bottom plate (15) is provided with an opening which cooperates with the pressure relief assembly (6).

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