Modularized prefabricated assembly type sewage treatment tank

Abstract

The invention belongs to the technical field of sewage treatment tanks, and particularly relates to a modular prefabricated assembly type sewage treatment tank. The water pool comprises a water pool main body, the water pool main body comprises a plurality of prefabricated concrete module components which are arranged at intervals in the length direction of the water pool main body, every two adjacent prefabricated concrete module components are set as a first module component and a second module component respectively, and an integral U-shaped splicing seam is formed between each first module component and the corresponding second module component; the U-shaped splicing seam is composed of a bottom plate splicing seam located at the bottom of the U-shaped splicing seam and side plate splicing seams located on the two sides of the U-shaped splicing seam, the U-shaped splicing seam is internally provided with an elastic seam material filling solidification structure layer, and the first module component and the second module component are connected through a plurality of sets of connecting assemblies arranged in the length direction of the U-shaped splicing seam at intervals. Each connecting assembly comprises a spherical hinge support, a first connecting rod, a sleeve, a second connecting rod, an annular limiting piece and an air spring. On-site rapid assembly can be facilitated, and meanwhile the durability of the joints of module components is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment tanks, and in particular relates to a modular prefabricated sewage treatment tank. Background Art

[0002] Traditional small-scale sewage treatment stations mainly adopt the following two forms. The first is cast-in-place reinforced concrete small-scale sewage treatment stations: the treatment process mainly adopts a decentralized layout, which is divided into pretreatment, biochemical treatment, sedimentation and disinfection. There are many single structures, a large area, a long construction period, a large amount of on-site work, many types of work, limited sites, time-consuming and labor-intensive defects, and for remote areas such as rural or mountainous areas, the construction cost is higher, and traditional sewage treatment systems are difficult to promote. The second is a steel-integrated small-scale sewage treatment device: the treatment process mainly adopts an integrated layout. Usually, the service life of a steel-integrated small-scale sewage treatment device does not exceed 10 years. After 10 years, most plants and stations that use integrated sewage treatment equipment are faced with comprehensive reset and update, and the depreciation cost is high; the steel-integrated small-scale sewage treatment device needs to be placed on the ground and set up a reinforced concrete foundation. It cannot be directly buried underground, which is limited in application scenarios.

[0003] Under the background of transformation and upgrading of the manufacturing industry, prefabricated technology has been widely used in the construction industry due to its many advantages. Prefabricated technology is currently most widely used in the field of housing construction, and the construction technology system is becoming more mature. In recent years, various parties have also conducted a lot of exploration on the application of reinforced concrete prefabricated technology in the field of water pools. The existing prefabricated water pools are mainly divided into prefabricated wet connection water pools and prefabricated dry connection water pools. Among them: the prefabricated wet connection water pool, the main body is prefabricated components, and the joints are cast-in-place concrete. However, the prefabricated water supply and drainage structures using wet connection technology have inconsistent shrinkage at the joint surface of the first and later cast concrete, which makes the bonding strength of the joint surface insufficient, resulting in cracking and water seepage; the prefabricated dry connection water pool, the main body is prefabricated components, and the joints are connected by connectors, but the prefabricated water supply and drainage structures using dry connection technology are difficult to solve the stress problem of water working conditions in the board; the connection adopts water rubber, water stop and other forms, due to uneven deformation, cold and hot alternation and other damage accumulation, serious leakage occurs, and the joint connection form is difficult to meet the deformation and waterproof requirements. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a modular prefabricated sewage treatment tank which is convenient for rapid on-site assembly and has improved durability.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a modular prefabricated assembled sewage treatment pool, including a pool body, the pool body includes a plurality of prefabricated concrete module components arranged at intervals along its length direction, two adjacent prefabricated concrete module components are respectively set as a first module component and a second module component, an integral U-shaped splicing seam is formed between the first module component and the second module component, the U-shaped splicing seam is composed of a bottom plate splicing seam located at the bottom and side plate splicing seams located on both sides thereof, and the first module component and the second module component are connected by a splicing seam along the length of the U-shaped splicing seam. The plurality of connection components are connected by being spaced apart in the direction of degrees, each connection component comprises a ball joint support, a first connection rod, a sleeve, a second connection rod, an annular stopper and an air spring, the joint end face of the first module component and the joint end face of the second module component respectively have mounting holes corresponding to the connection components, the bottom wall of the mounting hole of the first module component and the bottom wall of the mounting hole of the second module component are respectively fixed with ball joint supports, the outer end of the inner side wall of the mounting hole of the first module component and the outer end of the inner side wall of the mounting hole of the second module component are respectively fixed with annular stoppers, one end of the outer side wall of the sleeve is formed by The air springs arranged at an annular interval are connected to the inner wall of the annular limiter on the first module component, and the other end of the outer wall of the sleeve is connected to the inner wall of the annular limiter on the second module component through the air springs arranged at an annular interval. One end of the first connecting rod forms a spherical hinge with the ball joint support on the first module component, and the other end forms a threaded connection with the inner wall of the sleeve. One end of the second connecting rod forms a spherical hinge with the ball joint support on the second module component, and the other end forms a clearance fit with the inner wall of the sleeve. The inner wall of the sleeve has space for the second connecting rod to move axially. When When the air spring is in a natural state, the axis of the sleeve is perpendicular to the center plane in the width direction of the U-shaped joint, the end of the first connecting rod connected to the sleeve extends out of the joint end face of the first module component, and the end of the second connecting rod connected to the sleeve extends out of the joint end face of the second module component; the U-shaped joint seam has a solidified structural layer filled with elastic joint material, and the two sides of the solidified structural layer filled with elastic joint material form a closed connection with the joint end face of the first module component and the joint end face of the second module component respectively, and wrap the middle area of ​​the outer wall of the sleeve.

[0006] A further preferred solution is that a sleeve partition is fixedly arranged in the sleeve, and a spacing space is provided between the side of the sleeve partition facing the second connecting rod and the end of the second connecting rod connected to the sleeve.

[0007] A further preferred solution is that the end surface of the second connecting rod connected to the sleeve is connected to the sleeve partition through a buffer spring.

[0008] A further preferred solution is that the joint end faces of the first module component and the joint end faces of the second module component are both vertical planes, the outer end face of the annular limiter on the first module component is flush with the joint end face of the first module component, and the outer end face of the annular limiter on the second module component is flush with the joint end face of the second module component.

[0009] A further preferred solution is that the inner end surface of the annular stopper on the first module component and the inner end surface of the annular stopper on the second module component are flush with the two end surfaces of the sleeve respectively.

[0010] A further preferred solution is that both ends of the outer side wall of the sleeve are connected to the inner wall of the corresponding annular limiter through a group of radial guide devices, and each group of radial guide devices is a vertical slide rail assembly or a horizontal slide rail assembly symmetrically arranged on both sides of the sleeve.

[0011] A further preferred solution is that the material of the elastic joint material filling the solidified structural layer is resin or rubber.

[0012] A further preferred solution is that a portion of the prefabricated concrete module components located in the middle area of ​​the pool body are provided with partition walls in an integral structure in their inner cavities, so that the pool body is divided into a plurality of pool units.

[0013] A further preferred solution is that the ball joint bearing comprises two symmetrically arranged bearing shell units, the two bearing shell units are combined to form a spherical hinge cavity for matching and connecting the first connecting rod, the two bearing shell units are fixed into an integral bearing shell by fixing bolts, the bearing shell is fixedly connected to a fixed panel, and the fixed panel is fixedly connected to the corresponding precast concrete module component by embedded anchor bolts.

[0014] A further preferred solution is that the precast concrete module component is provided with inspection holes corresponding to the ball joint supports on the inner wall surface of the pool body, the inner end of the inspection hole is connected to the inner end of the mounting hole, and the outer end of the inspection hole is provided with a sealing structure that can be opened and closed.

[0015] The beneficial effects of the present invention are as follows: two adjacent precast concrete module components are respectively fixed with ball joint supports, the first connecting rod and the second connecting rod can rotate freely, and the end of the second connecting rod connected to the sleeve can be freely extended and retracted, so that multi-degree-of-freedom relative movement between module components can be realized, and stress concentration at the connection of module components can be avoided. The sleeve and the annular stopper on the wall of the installation hole are connected by air springs, so that when relative translation or torsion parallel to the connection surface occurs between module components, the relative displacement can be automatically restored by changing the outer water and soil pressure conditions and the upper load conditions. The resin, rubber and other joint materials are filled in the U-shaped joint seam to form an elastic joint material filling and curing structure layer, which is implemented after the connection device is installed. When tension or compression perpendicular to the connection surface occurs, the deformation of the resin, rubber and other joint materials can be used to avoid secondary stress in the module structure, thereby effectively ensuring the connection reliability at the joint and improving the durability of the overall device. By connecting and assembling precast concrete module components of different specifications, an integrated underground assembled sewage treatment unit can be formed, so that a complete sewage treatment system can be completed in one sewage treatment structure, and an integrated and intensive layout is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A partial top view of a sewage treatment tank according to an embodiment of the present invention;

[0017] Figure 2 A partial elevational cross-sectional view of a sewage treatment tank according to an embodiment of the present invention;

[0018] Figure 3 A plan view of connection nodes between module interfaces of an embodiment provided by the present invention;

[0019] Figure 4 A schematic diagram of the connection nodes between modules of an embodiment of the present invention;

[0020] Figure 5 An embodiment of the present invention is provided Figure 4 Schematic diagram of the connection and matching relationship between the middle ball joint support, the first connecting rod, the second connecting rod and the sleeve;

[0021] Figure 6 An embodiment of the present invention is provided Figure 4 Schematic diagram of the connection and matching relationship between the middle sleeve, the annular limiter and the air spring;

[0022] Figure 7 An embodiment of the present invention is provided Figure 4 Schematic diagram of the side elevation of the middle ball joint support;

[0023] Figure 8 An embodiment of the present invention is provided Figure 4Schematic diagram of the front elevation of the center ball joint support.

[0024] Marked in the figure are: precast concrete module component 1, inspection hole 2, installation hole 3, U-shaped joint 4, fixed panel 5, embedded anchor bolt 6, ball joint support 7, first connecting rod 8, sleeve 9, second connecting rod 10, annular limiter 11, air spring 12, external threaded portion 13, sleeve partition 14, fixing bolt 15, ball joint support housing connecting plate 16, ball joint support base 17, support housing unit component 18. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 8As shown, the present invention includes a pool body, which includes a plurality of precast concrete module components 1 arranged at intervals along its length direction, two adjacent precast concrete module components 1 are respectively set as a first module component and a second module component, an integral U-shaped splicing seam 4 is formed between the first module component and the second module component, the U-shaped splicing seam 4 is composed of a bottom plate splicing seam located at the bottom and side plate splicing seams located on both sides thereof, the first module component and the second module component are connected by a plurality of groups of connection components arranged at intervals along the length direction of the U-shaped splicing seam 4, and each group of connection components is The invention comprises a ball joint support 7, a first connecting rod 8, a sleeve 9, a second connecting rod 10, an annular stopper 11 and an air spring 12. The joint end face of the first module component and the joint end face of the second module component respectively have mounting holes 3 corresponding to the connecting assembly. The bottom wall of the mounting hole 3 of the first module component and the bottom wall of the mounting hole 3 of the second module component are respectively fixed with the ball joint support 7. The outer end of the inner wall of the mounting hole 3 of the first module component and the outer end of the inner wall of the mounting hole 3 of the second module component are respectively fixed with an annular stopper 11. One end of the outer wall of the sleeve 9 is connected by air springs 12 arranged in an annular manner. The spring 12 is connected to the inner wall of the annular stopper 11 on the first module component, and the other end of the outer wall of the sleeve 9 is connected to the inner wall of the annular stopper 11 on the second module component through the air spring 12 arranged in an annular interval. One end of the first connecting rod 8 forms a spherical hinge with the ball joint support 7 on the first module component, and the other end forms a threaded connection with the inner wall of the sleeve 9, that is, the end of the first connecting rod 8 connected to the sleeve 9 has an external threaded portion 13, and the sleeve 9 has an internal thread corresponding thereto; one end of the second connecting rod 10 is connected to the ball joint support 7 on the second module component. The hinge support 7 forms a spherical hinge, and the other end forms a clearance fit with the inner wall of the sleeve 9, and the inner wall of the sleeve 9 has a space for the axial movement of the second connecting rod 10, which is equivalent to that one end of the second connecting rod 10 can be freely extended and retracted in the sleeve 9; when the air spring 12 is in a natural state, the axis of the sleeve 9 is perpendicular to the center plane of the width direction of the U-shaped joint 4. In the preferred embodiment, the joint end faces of the first module component and the joint end faces of the second module component are both vertical planes, and the sleeve 9 is perpendicular to the joint end faces of the first module component and the joint end faces of the second module component at the same time. The end of the first connecting rod 8 connected to the sleeve 9 extends out of the joint end face of the first module component, and the end of the second connecting rod 10 connected to the sleeve 9 extends out of the joint end face of the second module component, that is, the interval area between the end face of the first connecting rod 8 and the end face of the second connecting rod 10 falls within the area where the U-shaped splicing seam 4 is located; the U-shaped splicing seam 4 has a solidified structural layer filled with elastic seam material, and the two sides of the solidified structural layer filled with elastic seam material form a closed connection with the joint end face of the first module component and the joint end face of the second module component respectively, and wrap the middle area of ​​the outer wall of the sleeve 9.During the specific implementation, the connection components are installed and connected first, and then the joint material is filled, and finally the above-mentioned elastic joint material is formed to fill the solidified structure layer. The joint material can be various conventional filling materials with waterproof performance and certain elasticity, such as resin or rubber. After adopting the above-mentioned force transmission and water-stop connection node (ball joint support 7, first connecting rod 8, sleeve 9, second connecting rod 10, annular limiter 11, air spring 12 and elastic joint material filling solidified structure layer), after calculation and verification, the prefabricated module component unit connection can meet the relative displacement between modules caused by stretching, shearing and torsion.

[0027] It is understandable that the precast concrete module component 1 itself should have a certain strength to meet the structural strength requirements of the pool body. It can usually be a reinforced concrete structure or various types of fiber-reinforced concrete. In the embodiment of the present invention, a reinforced concrete structure is preferably used to meet the design service life of 50 years.

[0028] The multiple precast concrete module components 1 in the present invention can constitute the main body of the pool, that is, the two precast concrete module components 1 at the end have two end plates in the length direction of the main body of the pool. The main body of the pool in the present invention can be understood in a broad sense, and can be a single pool body (biochemical pool, sedimentation tank, etc.) in a sewage treatment pool, or multiple pool body units integrated into the same main body of the pool. In a preferred embodiment, multiple pool body units are integrated into the same main body of the pool, that is, the part of the precast concrete module components 1 located in the middle area of ​​the main body of the pool is provided with a partition wall in an integral structure in its inner cavity, so that the main body of the pool is divided into multiple pool units. The specific position of the partition wall can be implemented with reference to the existing conventional sewage treatment process. In this way, by connecting and assembling precast concrete module components 1 of different specifications and structural forms, an integrated underground assembled sewage treatment unit can be formed, so that a complete sewage treatment system can be completed in one sewage treatment structure, and an integrated and intensive layout is achieved.

[0029] To further improve the structural reliability, a sleeve partition 14 is fixedly provided in the sleeve 9, and a spacing space is provided between the side of the sleeve partition 14 facing the second connecting rod 10 and the end of the second connecting rod 10 connected to the sleeve 9. The sleeve partition 14 can play an axial limiting role for the second connecting rod 10. In a preferred embodiment, the sleeve partition 14 is located at the midpoint of the length direction of the sleeve 9 and at the center of the width direction of the U-shaped joint 4.

[0030] In order to further improve the structural reliability, the end surface of the second connecting rod 10 connected to the sleeve 9 is connected to the sleeve partition 14 through a buffer spring.

[0031] To further improve structural reliability, the joint end faces of the first module component and the joint end faces of the second module component are both vertical planes, the outer end face of the annular limiter 11 on the first module component is flush with the joint end face of the first module component, and the outer end face of the annular limiter 11 on the second module component is flush with the joint end face of the second module component.

[0032] To further improve the structural reliability, the inner end surface of the annular stopper 11 on the first module component and the inner end surface of the annular stopper 11 on the second module component are flush with the two end surfaces of the sleeve 9 respectively.

[0033] To further improve the structural reliability, the two ends of the outer wall of the sleeve 9 are connected to the inner wall of the corresponding annular stopper 11 through a set of radial guide devices, and each set of radial guide devices is a vertical slide rail assembly or a horizontal slide rail assembly symmetrically arranged on both sides of the sleeve 9, which is equivalent to the sleeve 9 being able to move relative to the inner wall of the annular stopper 11 only horizontally or vertically through the radial guide device. In specific implementation, the arrangement of the radial guide device can be determined according to the deformation characteristics of the underground sewage treatment device in a specific area.

[0034] To facilitate quick assembly, the ball joint bearing 7 includes two symmetrically arranged bearing shell units 18. The two bearing shell units 18 are combined to form a spherical hinge cavity for matching and connecting the first connecting rod 8. The two bearing shell units 18 are fixed to form an integral bearing shell by fixing bolts 15. The bearing shell is fixedly connected with a fixing panel 5. The fixing panel 5 is fixedly connected to the corresponding precast concrete module component 1 by embedded anchor bolts 6. More specifically, a single bearing shell unit 18 is usually composed of a spherical arc shell, a spherical joint bearing shell connecting plate 16 and a spherical joint bearing base 17. The spherical arc shell is used to form a spherical hinge cavity for matching and connecting the first connecting rod 8. The spherical joint bearing shell connecting plate 16 is used to match and connect the fixing bolts 15. The spherical joint bearing base 17 is used to fix and connect the fixing panel 5.

[0035] It is understandable that, for each component in the connection assembly, except for the components with clear indication, such as the air spring 12 and the buffer spring, the remaining components are all rigid components with a certain strength, such as the fixed panel 5, the embedded anchor bolt 6, the ball joint support 7, the first connecting rod 8, the sleeve 9, the second connecting rod 10, the annular stopper 11 and the sleeve partition 14, etc., which can usually be made of steel. In specific implementation, the embedded anchor bolt 6 can generally be made of M20 high-strength bolts.

[0036] In order to facilitate assembly and maintenance, the precast concrete module component 1 is provided with an inspection hole 2 corresponding to the ball joint support 7 on the inner wall surface of the pool body. The inner end of the inspection hole 2 is connected to the inner end of the installation hole 3. The outer end of the inspection hole 2 is provided with a seal structure that can be opened and closed. The seal structure here can be understood in a broad sense, and can be in the form of various conventional sealing doors, sealing plugs, etc., or can be formed by filling with caulking materials. The inspection hole 2 is mainly used to inspect the ball joint support 7.

Claims

1. A modular prefabricated sewage treatment pool, comprising a pool body, wherein the pool body comprises a plurality of prefabricated concrete module components (1) arranged at intervals along its length direction, wherein two adjacent prefabricated concrete module components (1) are respectively set as a first module component and a second module component, and wherein: An integral U-shaped joint (4) is formed between the first module component and the second module component. The U-shaped joint (4) is composed of a bottom plate joint located at the bottom and side plate joints located on both sides. The first module component and the second module component are connected by a plurality of groups of connection components arranged at intervals along the length direction of the U-shaped joint (4). Each group of connection components includes a ball joint support (7), a first connecting rod (8), a sleeve (9), a second connecting rod (10), an annular stopper (11) and an air spring (12). The joint end face of the first module component and the joint end face of the second module component The end surfaces are respectively provided with mounting holes (3) corresponding to the connection components; the bottom wall of the mounting hole (3) of the first module component and the bottom wall of the mounting hole (3) of the second module component are respectively fixed with ball joint supports (7); the outer end of the inner wall of the mounting hole (3) of the first module component and the outer end of the inner wall of the mounting hole (3) of the second module component are respectively fixed with an annular stopper (11); one end of the outer wall of the sleeve (9) is connected to the inner wall of the annular stopper (11) on the first module component via an air spring (12) arranged at an annular interval; the other end of the outer wall of the sleeve (9) is connected to the inner wall of the annular stopper (11) on the first module component via an air spring (12) arranged at an annular interval The air spring (12) is connected to the inner wall of the annular stopper (11) on the second module component, one end of the first connecting rod (8) forms a spherical hinge with the ball joint support (7) on the first module component, and the other end forms a threaded connection with the inner wall of the sleeve (9), one end of the second connecting rod (10) forms a spherical hinge with the ball joint support (7) on the second module component, and the other end forms a clearance fit with the inner wall of the sleeve (9), and the inner wall of the sleeve (9) has a space for the axial movement of the second connecting rod (10), when the air spring (12) is in a natural state, the axial direction of the sleeve (9) is The line is perpendicular to the center plane of the width direction of the U-shaped joint seam (4); the end of the first connecting rod (8) connected to the sleeve (9) extends out of the joint end face of the first module component; the end of the second connecting rod (10) connected to the sleeve (9) extends out of the joint end face of the second module component; the U-shaped joint seam (4) has a solidified structural layer filled with elastic joint material, and the two sides of the solidified structural layer filled with elastic joint material correspond to the joint end face of the first module component and the joint end face of the second module component to form a closed connection, and the middle area of ​​the outer wall of the sleeve (9) is wrapped inside.

2. The modular prefabricated sewage treatment tank according to claim 1, characterized in that: A sleeve partition (14) is fixedly arranged in the sleeve (9), and a spacing space is provided between the side of the sleeve partition (14) facing the second connecting rod (10) and the end of the second connecting rod (10) connected to the sleeve (9).

3. The modular prefabricated sewage treatment tank according to claim 2, characterized in that: The end surface of the second connecting rod (10) connected to the inside of the sleeve (9) is connected to the sleeve partition (14) via a buffer spring.

4. The modular prefabricated sewage treatment tank according to claim 1, characterized in that: The joint end surface of the first module component and the joint end surface of the second module component are both vertical planes, the outer end surface of the annular stopper (11) on the first module component is flush with the joint end surface of the first module component, and the outer end surface of the annular stopper (11) on the second module component is flush with the joint end surface of the second module component.

5. The modular prefabricated sewage treatment tank according to claim 4, characterized in that: The inner end surface of the annular stopper (11) on the first module component and the inner end surface of the annular stopper (11) on the second module component are flush with the two end surfaces of the sleeve (9) respectively.

6. The modular prefabricated sewage treatment tank according to claim 1, characterized in that: The two ends of the outer wall of the sleeve (9) are connected to the inner wall of the corresponding annular limiter (11) through a group of radial guide devices, and each group of radial guide devices is a vertical slide rail assembly or a horizontal slide rail assembly symmetrically arranged on both sides of the sleeve (9).

7. The modular prefabricated sewage treatment tank according to claim 1, characterized in that: The material of the elastic joint material filling the solidified structural layer is resin or rubber.

8. The modular prefabricated sewage treatment tank according to claim 1, characterized in that: Part of the prefabricated concrete module components (1) located in the middle area of ​​the water pool body is provided with a partition wall in an integral structure in its inner cavity, so that the water pool body is divided into a plurality of water pool units.

9. The modular prefabricated sewage treatment tank according to any one of claims 1 to 8, characterized in that: The spherical joint support (7) comprises two symmetrically arranged support shell units (18), the two support shell units (18) are combined to form a spherical hinge cavity for matching and connecting the first connecting rod (8), the two support shell units (18) are fixed to form an integral support shell by fixing bolts (15), the support shell is fixedly connected to a fixing panel (5), and the fixing panel (5) is fixedly connected to the corresponding precast concrete module component (1) by embedded anchor bolts (6).

10. The modular prefabricated sewage treatment tank according to claim 9, characterized in that: The precast concrete module component (1) is provided with inspection holes (2) corresponding to the ball joint supports (7) on the inner wall surface of the water tank body, the inner end of the inspection hole (2) is connected to the inner end of the installation hole (3), and the outer end of the inspection hole (2) is provided with a sealing structure that can be opened and closed.

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