Reverse hanging membrane sewage pool protection device

Abstract

The utility model relates to the technical field of deodorization equipment of a sewage treatment plant, and discloses a reverse hanging membrane sewage pool protection device, which comprises a steel frame keel arranged at an opening at the upper end of a sewage pool; the PVDF membrane material is arranged on the inner side of the steel frame keel through the membrane material fixing mechanism; the membrane material fixing mechanism is arranged on the steel frame keel; according to the structure, through the arrangement of the steel frame keel, the PVDF membrane material and the membrane material fixing mechanism, the structure can be stably fixed to the top of the sewage pool to seal the top of the sewage pool, meanwhile, the weight of the top structure of the sewage pool is reduced, the inner side of the steel frame keel can be conveniently covered with the PVDF membrane material through the membrane material fixing mechanism, and the light transmission of the sewage pool can be effectively guaranteed through the arrangement of the PVDF membrane material; the sealing cover for the sewage pool has the advantages of being small in self weight, convenient to construct, capable of effectively controlling the aerobic and anaerobic environments in the sewage pool and the like, and solves the problems that an existing sealing cover for the sewage pool is large in self weight, inconvenient to construct, incapable of effectively controlling the aerobic and anaerobic environments in the sewage pool and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of deodorization equipment in sewage treatment plants, and particularly relates to a protective device for an inverted hanging membrane sewage pool. Background Art

[0002] Sewage pools are a necessary facility in the sewage treatment process. They are mainly used to separate and remove suspended solids and pollutants in wastewater through physical and biological methods during the sewage treatment process, effectively purify water sources and protect the environment. In order to ensure the activity of aerobic microorganisms, traditional sewage pools generally adopt an open sewage pool design when in use. That is, they are placed in the open air and the sewage pools are not covered, leaving them fully exposed to ensure the activity and purification effect of aerobic microorganisms. However, due to the volatilization of sludge during the sedimentation and degradation process in the sewage pool, odor and earthy smell will be emitted, which can easily affect the surrounding environment. In addition, if there is no cover, rainwater will enter the sewage pool on rainy days and mix with the sludge, which will not only pollute the water source again, but also easily occupy the storage space of the sludge, thereby reducing the space utilization rate of the sewage pool.

[0003] To solve the above problems, the commonly used technical means currently adopted is to set a reinforced concrete cover on the upper side of the sewage pool by cast-in-place or prefabricated assembly. However, during the actual construction process, due to the large span or diameter of the sewage pool, in order to ensure the strength when using traditional reinforced concrete structures, it is necessary to set columns or beams in the middle to support the cover. However, this method is inconvenient to construct due to the large volume and weight of the concrete. At the same time, after the reinforced concrete upper cover is closed, the upper part of the sewage pool is sealed, and then the inside of the sewage pool becomes an oxygen-free environment, affecting the degradation and sedimentation effect of the sewage pool. At the same time, the traditional reinforced concrete cover has a high cost and is not economical to use.

[0004] Therefore, the present invention proposes an inverted membrane sewage pool protection device to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides an inverted membrane sewage pool protection device, which has the advantages of light weight, convenient construction, and effective control of the aerobic and anaerobic environment in the sewage pool. It solves the problems of existing sewage pools such as heavy cover, inconvenient construction, and inability to effectively control the aerobic and anaerobic environment in the sewage pool.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned purpose of effectively controlling the aerobic and anaerobic environment in the sewage pool, the present invention provides the following technical solutions:

[0009] A protective device for an inverted membrane sewage pool, comprising:

[0010] The steel frame keel is a curved dome structure set at the upper opening of the sewage tank;

[0011] PVDF membrane material is set inside the steel frame keel through the membrane material fixing mechanism;

[0012] The membrane material fixing mechanism is arranged on the steel frame keel and matches the PVDF membrane material.

[0013] In a preferred embodiment, the steel frame keel comprises:

[0014] The ring beam membrane fixed circular tube is set at the upper opening of the sewage tank;

[0015] The radial cable membrane fixing circular tube is arranged in the middle of the compression ring beam membrane fixing circular tube and is connected to the compression ring beam membrane fixing circular tube through the first steel connecting rod and the second steel connecting rod;

[0016] The inner ring cable membrane fixing circular tube is arranged on the lower side of the middle portion of the radial cable membrane fixing circular tube and is connected to the radial cable membrane fixing circular tube through a third steel connecting rod.

[0017] In a preferred embodiment, a plurality of embedded parts are provided at the upper opening of the sewage pool, and the embedded parts match the circular tube for fixing the pressure ring beam membrane.

[0018] In a preferred embodiment, the centers of the compression ring beam membrane fixing circular tube, the radial cable membrane fixing circular tube and the inner ring cable membrane fixing circular tube coincide, and the first steel connecting rod and the second steel connecting rod are arranged to be tilted upward, and the third steel connecting rod is arranged to be tilted downward.

[0019] In a preferred embodiment, the film material fixing mechanism includes:

[0020] A first locking membrane node is provided on the first steel connecting rod;

[0021] A second locking membrane node is provided on the second steel connecting rod;

[0022] The third membrane locking node is arranged on the fixed circular tube of the compression ring beam membrane;

[0023] The fourth membrane locking node is arranged on the radial cable membrane fixing circular tube;

[0024] The fifth locking membrane node is arranged on the inner ring cable membrane fixing circular tube;

[0025] a sixth locking membrane node, arranged on the third steel connecting rod;

[0026] Moreover, the first film locking node, the second film locking node, the third film locking node, the fourth film locking node, the fifth film locking node and the sixth film locking node all match the PVDF film material.

[0027] In a preferred embodiment, the first locking film node, the second locking film node, the third locking film node, the fourth locking film node, the fifth locking film node and the sixth locking film node all include:

[0028] The stiffening steel plate and the steel stiffening bar are both arranged outside the sleeve ring, and the steel stiffening bar is arranged on one side of the stiffening steel plate;

[0029] The steel pressure plate is arranged on one side of the steel stiffening bar and is connected to the steel stiffening bar through connecting bolts, so that the PVDF membrane material is clamped between the steel pressure plate and the steel stiffening bar.

[0030] In a preferred embodiment, the sleeve ring matches the compression ring beam membrane fixing circular tube, the first steel connecting rod, the second steel connecting rod, the radial cable membrane fixing circular tube, the third steel connecting rod and the inner ring cable membrane fixing circular tube.

[0031] In a preferred embodiment, the first locking film node, the second locking film node, the third locking film node, the fourth locking film node, the fifth locking film node and the sixth locking film node further include:

[0032] The aluminum strip is arranged inside the bending part of the PVDF membrane material and matches the steel pressure plate and the steel stiffening strip.

[0033] (3) Beneficial effects

[0034] Compared with the prior art, the present invention provides a protective device for an inverted membrane sewage pool, which has the following beneficial effects:

[0035] 1. Through the arrangement of the steel frame keel, PVDF membrane material and membrane material fixing mechanism, it can be stably fixed on the top of the sewage pool, playing a capping effect on the sewage pool and reducing the weight of the top structure of the sewage pool. The membrane material fixing mechanism can facilitate the PVDF membrane material to be covered on the outside of the steel frame keel. The arrangement of the PVDF membrane material can effectively ensure the light transmittance of the sewage pool and control the aerobic and anaerobic environment in the sewage pool at the same time, solving the problems of the existing sewage pool such as heavy cover, inconvenient construction, and inability to effectively control the aerobic and anaerobic environment in the sewage pool;

[0036] 2. Through the setting of the membrane material fixing mechanism, the membrane material fixing mechanism is installed on the steel frame keel, making the installation and fixing process of the PVDF membrane material simple, convenient and flexible, and the fixing effect is good, which is convenient for later maintenance and repair; it has the advantages of light weight, convenient construction, and can effectively control the aerobic and anaerobic environment in the sewage pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1This is a top view of the utility model's inverted membrane sewage pool protection device;

[0038] Figure 2 This is the front view of the utility model's inverted membrane sewage pool protection device;

[0039] Figure 3 This is a cross-sectional view of the utility model's inverted membrane sewage pool protection device;

[0040] Figure 4 This is a top view of the steel frame keel of the utility model;

[0041] Figure 5 This is the layout diagram of the embedded parts of the utility model;

[0042] Figure 6 This is a structural diagram of the first film locking node of the utility model;

[0043] Figure 7 This is a schematic structural diagram of the second film locking node of the utility model;

[0044] Figure 8 This is a structural diagram of the third locking membrane node of the utility model;

[0045] Figure 9 This is a schematic structural diagram of the fourth locking membrane node of the present invention;

[0046] Figure 10 This is a structural diagram of the fifth locking membrane node of the utility model;

[0047] Figure 11 This is a structural diagram of the sixth locking membrane node of the utility model.

[0048] In the figure: 1. Compression ring beam membrane fixing circular tube; 2. First steel connecting rod; 3. Second steel connecting rod; 4. Embedded parts; 5. Radial cable membrane fixing circular tube; 6. Third steel connecting rod; 7. Inner ring cable membrane fixing circular tube; 8. Drain pipe; 9. PVDF membrane material; 10. Reinforcing steel plate; 11. Aluminum strip; 12. Steel pressure plate; 13. Connecting bolts; 14. Sleeve ring; 15. Steel reinforcing bar; 16. Sewage tank. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] See also Figure 1-11 , the utility model provides a technical solution:

[0051] A protective device for an inverted membrane sewage pool, comprising a steel frame keel, a PVDF membrane material 9 and a membrane material fixing mechanism; wherein

[0052] The steel frame keel is a steel arc-shaped dome structure installed at the upper end of the sewage tank through the embedded parts 4 at the upper end opening of the sewage tank 16;

[0053] The PVDF membrane material 9 is fixed on the inner side of the steel frame keel by a membrane material fixing mechanism;

[0054] The membrane material fixing mechanism is arranged on the steel frame keel and is used in conjunction with the PVDF membrane material 9;

[0055] In this embodiment, the weight of the top structure of the sewage pool is effectively reduced by the setting of the steel frame keel. The PVDF membrane material 9 can be easily covered on the outside of the steel frame keel through the membrane material fixing mechanism. The setting of the PVDF membrane material 9 can ensure the light transmittance of the sewage pool, and at the same time control the aerobic and anaerobic environment in the sewage pool; the membrane layer of the PVDF membrane material 9 also contains high-strength low-yarn polyester yarn, high-quality PVC coating and UV light curing treatment, which not only brings into play the corrosion resistance of the membrane material, but also fundamentally solves the corrosion problem of the steel structure caused by contact with corrosive gases.

[0056] As a preferred embodiment, Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the steel frame keel includes a pressure ring beam membrane fixing circular tube 1, a radial cable membrane fixing circular tube 5 and an inner ring cable membrane fixing circular tube 7. The pressure ring beam membrane fixing circular tube 1 is fixedly arranged at the upper end opening of the sewage tank 16 through an embedded part 4. The radial cable membrane fixing circular tube 5 is arranged in the middle of the pressure ring beam membrane fixing circular tube 1 and is connected to the pressure ring beam membrane fixing circular tube 1 through a first steel connecting rod 2 and a second steel connecting rod 3 arranged upwardly. The inner ring cable membrane fixing circular tube 7 is arranged on the lower side of the middle part of the radial cable membrane fixing circular tube 5 and is connected to the radial cable membrane fixing circular tube 5 through a downwardly inclined third steel connecting rod 6;

[0057] In this embodiment, the steel frame keel of the dome is formed by connecting the compression ring beam membrane fixing circular tube 1, the first steel connecting rod 2, the second steel connecting rod 3, the radial cable membrane fixing circular tube 5, the third steel connecting rod 6 and the inner ring cable membrane fixing circular tube 7. During construction, it can be assembled and welded according to design requirements, and the overall weight is light, which is convenient for installation and use.

[0058] As a preferred embodiment, Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the membrane material fixing mechanism includes a first membrane locking node, a second membrane locking node, a third membrane locking node, a fourth membrane locking node, a fifth membrane locking node and a sixth membrane locking node, the first membrane locking node is arranged on the first steel connecting rod 2, the second membrane locking node is arranged on the second steel connecting rod 3, the third membrane locking node is arranged on the compression ring beam membrane fixing circular tube 1, the fourth membrane locking node is arranged on the radial cable membrane fixing circular tube 5, the fifth membrane locking node is arranged on the inner ring cable membrane fixing circular tube 7, and the sixth membrane locking node is arranged on the third steel connecting rod 6, and the first membrane locking node, the second membrane locking node, the third membrane locking node, the fourth membrane locking node, the fifth membrane locking node and the sixth membrane locking node are all used in conjunction with the PVDF membrane material 9 to fix the PVDF membrane material 9 to the inside of the steel frame keel;

[0059] In this embodiment, by setting the first locking film node, the second locking film node, the third locking film node, the fourth locking film node, the fifth locking film node and the sixth locking film node, the corresponding locking film nodes can be flexibly installed on the steel frame keel to fix the PVDF membrane material 9, and the entire construction process is simple and flexible to operate.

[0060] As a preferred embodiment, Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown, the first locking film node, the second locking film node, the third locking film node, the fourth locking film node, the fifth locking film node and the sixth locking film node all include a stiffening steel plate 10, an aluminum bar 11, a steel pressure plate 12, a sleeve ring 14 and a steel stiffening bar 15; wherein

[0061] The stiffening steel plate 10 and the steel stiffening bar 15 are both welded to the outside of the sleeve ring 14, and the steel stiffening bar 15 is welded on one side of the stiffening steel plate 10;

[0062] The aluminum strip 11 is clamped at the bend of the PVDF membrane 9 to limit the position of the PVDF membrane 9;

[0063] The steel pressing plate 12 is arranged on one side of the steel stiffening bar 15 and is connected to the steel stiffening bar 15 by connecting bolts 13, clamping the PVDF membrane 9 between the steel pressing plate 12 and the steel stiffening bar 15 to fix the PVDF membrane 9;

[0064] In this embodiment, the sleeve ring 14 of the first locking membrane node is used in conjunction with the first steel connecting rod 2, the sleeve ring 14 of the second locking membrane node is used in conjunction with the second steel connecting rod 3, the sleeve ring 14 of the third locking membrane node is used in conjunction with the pressure ring beam membrane fixed circular tube 1, the sleeve ring 14 of the fourth locking membrane node is used in conjunction with the radial cable membrane fixed circular tube 5, the sleeve ring 14 of the fifth locking membrane node is used in conjunction with the inner ring cable membrane fixed circular tube 7, and the sleeve ring 14 of the sixth locking membrane node is used in conjunction with the third steel connecting rod 6. During installation, the sleeve ring 14 is sleeved on the corresponding steel connecting rod and fixed circular tube, and can be moved. After moving, the PVDF membrane material 9 is fixed, and the operation is simple and flexible.

[0065] As a preferred embodiment, Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown, due to the different positions of the fixing points, the shape of the stiffening steel plate 10 can be designed to include various shapes.

[0066] As a preferred embodiment, Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown, the aluminum strip 11 is clamped at the bend of the PVDF membrane 9 and is used in conjunction with the steel pressure plate 12 and the steel stiffening strip 15 .

[0067] The construction process and operating principle of the inverted membrane sewage pool protection device of the utility model include:

[0068] First, before installing the inverted membrane sewage pool protection device, the materials are cut according to the design requirements to obtain the original accessories of the steel frame keel and the membrane material fixing mechanism, and the necessary original parts are assembled on the ground according to the requirements; then the steel frame keel is hoisted and assembled using a crane to make it a steel arc-shaped dome structure, and it is fixed to the upper end opening of the sewage pool 16 using embedded parts 4; then the corresponding number of membrane material fixing mechanisms are installed on the corresponding steel connecting rods and fixed circular tubes on the steel frame keel; finally, the PVDF membrane material 9 is covered on the steel frame keel and fixed.

[0069] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0070] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for an inverted membrane sewage pool, characterized in that: include: The steel frame keel is a curved dome structure provided at the upper opening of the sewage tank (16); The PVDF membrane material (9) is arranged on the inner side of the steel frame keel through a membrane material fixing mechanism; A membrane material fixing mechanism is provided on the steel frame keel and matches the PVDF membrane material (9); The steel frame keel comprises: A pressure ring beam membrane fixed circular tube (1) is arranged at the upper end opening of the sewage tank (16); A radial cable membrane fixing circular tube (5) is arranged in the middle of the compression ring beam membrane fixing circular tube (1) and is connected to the compression ring beam membrane fixing circular tube (1) via a first steel connecting rod (2) and a second steel connecting rod (3); The inner ring cable membrane fixing circular tube (7) is arranged on the lower side of the middle portion of the radial cable membrane fixing circular tube (5) and is connected to the radial cable membrane fixing circular tube (5) via a third steel connecting rod (6).

2. The inverted membrane sewage pool protection device according to claim 1, characterized in that: A plurality of embedded parts (4) are provided at the upper opening of the sewage pool (16), and the embedded parts (4) match the pressure ring beam membrane fixed circular tube (1).

3. The inverted membrane sewage pool protection device according to claim 1, characterized in that: The centers of the compression ring beam membrane fixing circular tube (1), the radial cable membrane fixing circular tube (5) and the inner ring cable membrane fixing circular tube (7) coincide with each other, and the first steel connecting rod (2) and the second steel connecting rod (3) are arranged to be tilted upward, while the third steel connecting rod (6) is arranged to be tilted downward.

4. The inverted membrane sewage pool protection device according to claim 1, characterized in that: The membrane material fixing mechanism includes: A first locking membrane node is provided on the first steel connecting rod (2); A second locking membrane node is provided on the second steel connecting rod (3); A third membrane locking node is provided on the compression ring beam membrane fixing circular tube (1); A fourth membrane locking node is provided on the radial cable membrane fixing circular tube (5); A fifth locking membrane node is provided on the inner ring cable membrane fixing circular tube (7); A sixth locking membrane node is provided on the third steel connecting rod (6); Furthermore, the first film locking node, the second film locking node, the third film locking node, the fourth film locking node, the fifth film locking node and the sixth film locking node all match the PVDF film material (9).

5. The inverted membrane sewage pool protection device according to claim 4, characterized in that: The first locking film node, the second locking film node, the third locking film node, the fourth locking film node, the fifth locking film node and the sixth locking film node all include: The stiffening steel plate (10) and the steel stiffening bar (15) are both arranged outside the sleeve ring (14), and the steel stiffening bar (15) is arranged on one side of the stiffening steel plate (10); The steel pressing plate (12) is arranged on one side of the steel stiffening bar (15) and is connected to the steel stiffening bar (15) via connecting bolts (13), so that the PVDF membrane material (9) is clamped between the steel pressing plate (12) and the steel stiffening bar (15).

6. The inverted membrane sewage pool protection device according to claim 5, characterized in that: The sleeve ring (14) matches the compression ring beam membrane fixing circular tube (1), the first steel connecting rod (2), the second steel connecting rod (3), the radial cable membrane fixing circular tube (5), the third steel connecting rod (6) and the inner ring cable membrane fixing circular tube (7).

7. The inverted membrane sewage pool protection device according to claim 5, characterized in that: The first locking film node, the second locking film node, the third locking film node, the fourth locking film node, the fifth locking film node and the sixth locking film node further include: The aluminum strip (11) is arranged inside the bend of the PVDF membrane (9) and matches the steel pressure plate (12) and the steel stiffening strip (15).

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