Large-diameter inspection well based on Krah pipe and production process

Abstract

The invention discloses a large-diameter inspection well based on a Krah pipe and a production process, and relates to the technical field of large-diameter inspection wells, the large-diameter inspection well comprises a main pipe socket, a main pipe spigot, a well chamber, a well shaft and two well chamber end sockets, the two ends of the well chamber are open, the top of the well chamber is provided with a well shaft mounting opening, and the two well chamber end sockets are provided with connector holes respectively. According to the inspection well, all the components are independently produced through a Krah pipe production line, a sealed inspection well main body structure can be formed after hot melting connection is conducted on site, the inspection well with the oversized size can be achieved, and the problems that a traditional brick inspection well is prone to cracking, water leakage is caused by uneven sedimentation, desilting is difficult, and the diameter of a plastic inspection well is small can be solved. A detection power supply communication module is installed in an internal space corresponding to an opening of a side guide pipe electric appliance cavity of an inspection ladder, reliable power supply and stable data forwarding are achieved, and the technical problems of water level and water quality detection and output transmission of a sedimentation tank in an inspection well are solved.

Description

Technical Field

[0001] The invention relates to the technical field of large-diameter inspection wells, in particular to a large-diameter inspection well based on carat tubes and a production process. Background Art

[0002] Traditional inspection wells are divided into brick inspection wells and plastic inspection wells. The construction speed of brick inspection wells is slow. It takes 1-2 days to build a well including concrete foundation and cement curing. Quality problems during the construction process (such as loose template installation, deformation during pouring, loose vibration, etc.) may cause dimensional deviation and cracks in the inspection well. These problems not only affect the strength and sealing of the well body, but also may affect the service life of the well body. When backfilling around the inspection well, if the backfill material is improperly selected or the backfill is not standardized (such as the backfill layer thickness exceeds the specification, there is no layer compaction, etc.), the backfill soil may cause excessive lateral pressure on the well body, causing the well body to deform or settle.

[0003] Brick inspection well walls are prone to leakage, and the bottom of the interface between the plastic pipe and the inspection well is even more prone to leakage, leading to groundwater pollution and increased external water volume, affecting the safe and stable operation of the drainage system. The well walls are easily sticky with mud and dirt, which is difficult to remove, increasing maintenance costs and time costs.

[0004] Under the current standards, plastic inspection wells are generally vertical tubular, with a maximum well chamber diameter of 1.5 meters and a main pipe diameter of 1 meter, and their usage scenarios are limited. Summary of the invention

[0005] In order to solve the above technical problems of inspection wells, the present invention provides a large-diameter inspection well based on carat tubes and a production process. The following technical solutions are adopted: A large-diameter inspection well based on a carat tube, the large-diameter inspection well comprises a main pipe socket, a main pipe spigot, a well chamber, a wellbore and two well chamber covers, the two ends of the well chamber are open, a wellbore installation opening is opened on the top, the two well chamber covers are respectively provided with interface holes, the two well chamber covers are respectively installed at the two ends of the well chamber, the main pipe socket and the main pipe spigot are respectively installed at the interface holes of the two well chamber covers and are located on both sides of the well chamber, and the bottom of the wellbore is installed at the wellbore installation opening of the well chamber; The main pipe socket, main pipe spigot, well chamber, wellbore and two well chamber heads are all made of HDPE pipes, and the joints are connected by hot melt technology. After the hot melt connection is completed, an integrated large-diameter inspection well is formed.

[0006] By adopting the above technical solution, the main pipe socket, main pipe spigot, well chamber, wellbore and two well chamber heads can be produced separately by the carat pipe production line. After hot-melt connection on site, a sealed inspection well main structure can be formed, which can realize extra-large inspection wells and solve the problems of traditional brick inspection wells such as easy cracking, uneven settlement leading to leakage, difficulty in dredging and small diameter of plastic inspection wells.

[0007] Optionally, after the large-diameter inspection well is formed, a sludge pool is formed between the lowest point of the inner wall of the well chamber and the lowest point of the interface holes of the two well chamber heads, and the depth of the sludge pool is greater than or equal to 400 mm.

[0008] By adopting the above technical solution, the depth of the sedimentation tank is greater than or equal to 400mm. The longer the mud retention time, the better the sedimentation effect. The sedimentation tank can store sediment and sludge to prevent it from directly entering the downstream pipeline and causing blockage or pollution. It can play the role of mud storage during the cleaning operation, which is convenient for maintenance and management.

[0009] Optionally, the large-diameter inspection well also includes an inspection ladder, which is installed on the inner wall of the wellbore by hot-melt welding. The inspection ladder is formed by HDPE pipe, and the bottom of the inspection ladder is flush with the top surface of the sludge tank.

[0010] Optionally, the inspection ladder is arc-shaped and fits the inner wall of the wellbore and is centered, and the inspection ladder includes two side guide tubes and multiple cross-tread tubes, and the two sides of the multiple cross-tread tubes are respectively installed on the sides of the two side guide tubes; An electrical cavity opening is arranged in the middle of the side conduit, and the electrical cavity opening is used for assembling electrical components in the side conduit.

[0011] By adopting the above technical solution, the inspection ladder is also formed of HDPE pipes, which is convenient for on-site assembly and hot-melt welding on the inner wall of the wellbore. An electrical cavity opening is provided in the middle of the side duct, on which electrical components for water level inspection and water quality inspection can be installed.

[0012] Optionally, the main pipe socket and main pipe spigot of the large-diameter inspection well are used to connect to the main pipe with a diameter greater than 1 meter.

[0013] Optionally, the diameter of the well chamber is greater than 1.5 meters.

[0014] By adopting the above technical solutions, the current standard size of plastic inspection wells can be broken through, and the application scenarios are more diverse.

[0015] Optionally, it also includes a sludge tank water level and water quality monitoring device, which includes a detection power supply communication module, a tow-line liquid level gauge, a tow-line water quality sensor and a liquid level and water quality analysis alarm module. The detection power supply communication module is installed in the inner cavity of the side conduit corresponding to the opening of the electrical cavity. The tow-line liquid level gauge and the tow-line water quality sensor are electrically connected to the detection power supply communication module through communication wires and power supply wires, respectively. The tow-line liquid level gauge is used to detect the liquid level height of the sludge tank. The tow-line water quality sensor is used to detect the water quality of the sludge tank. The tow-line water quality sensor and the liquid level and water quality analysis alarm module communicate with the detection power supply communication module to exchange detection data, and the detection power supply communication module is wirelessly connected to the liquid level and water quality analysis alarm module.

[0016] By adopting the above technical scheme, the sludge tank water level and water quality monitoring device adopts a towed-line liquid level gauge and a towed-line water quality sensor to respectively detect the water level and water quality in the sludge tank, and the output of the detection data is a difficult point. Here, the detection power supply communication module is installed in the internal space corresponding to the opening of the electrical cavity of the side duct of the inspection ladder, which can achieve reliable power supply and stable data forwarding, and then transmit the detection data to the liquid level and water quality analysis alarm module through wireless transmission. The specific liquid level and water quality analysis alarm module can be implemented based on a wireless communication receiving module, a data analysis computer and an alarm. The wireless communication receiving module and the detection power supply communication module wirelessly exchange detection data, and the data analysis computer receives the inspection data. According to the design parameters of the sludge tank and the water level change law during normal operation, the normal water level range is set, and the threshold value of abnormal water level increase is determined. For example, it can be set to ±10% of the normal water level change range.

[0017] Realize the judgment of abnormal water level: record the historical data of the sedimentation tank water level, and by analyzing the trend change of the water level, it can be judged whether the water level rises abnormally. For example, if the water level rises rapidly in a short period of time, and external natural factors such as rainfall are not sufficient to explain this change, it may be caused by leakage.

[0018] The real-time water level data is compared with the preset abnormal threshold. If it exceeds the threshold, it is judged as abnormal increase.

[0019] Combined with other monitoring data, such as rainfall, surrounding soil moisture, pipeline flow, etc., a comprehensive analysis is conducted to rule out the impact of other factors on the water level.

[0020] If it is determined that there is an abnormal water level, the alarm will be controlled to alert the staff to pay attention; For water quality test data, it is possible to test the pH value, suspended solids, heavy metal ions, etc. in the water in the sedimentation tank, conduct real-time or regular analysis of the collected water quality data, and compare them with the water quality standards. If it is detected that the water quality parameters exceed the preset threshold, the control alarm will sound to prompt the staff to pay attention. Optionally, the detection power supply communication module includes a shell, a power supply battery, a power supply communication circuit board and a wireless communication antenna. The shell is installed at the inner cavity of the side conduit corresponding to the opening of the electrical cavity. The power supply battery and the power supply communication circuit board are respectively installed in the shell. The wireless communication antenna is installed on the top of the shell, vertically toward the top opening of the side conduit, and is communicatively connected to the communication interface of the power supply communication circuit board. The power supply communication circuit board is electrically connected to the tow-line liquid level meter and the tow-line water quality sensor respectively for power supply, collects detection data of the tow-line liquid level meter and the tow-line water quality sensor, and wirelessly communicates and interacts with the liquid level and water quality analysis alarm module through the wireless communication antenna.

[0021] By adopting the above technical scheme, considering that the main body of the inspection well is located underground, in order to enable data to be transmitted stably, a wireless communication antenna is used to realize wireless data transmission. The specific wireless communication antenna can be a LoRa antenna, which can realize long-distance wireless communication. The detection and power supply communication module is located as a whole in the inner cavity of the side conduit corresponding to the opening of the electrical cavity. The wireless signal is sent upward through the hollow position of the side conduit. The bottom is connected to the towline liquid level meter and the towline water quality sensor through communication and power-carrying wires to realize tethered installation, so as to achieve stable power supply and communication while meeting the detection of the towline liquid level meter and the towline water quality sensor.

[0022] The large-diameter inspection production and installation process based on carat tubes is used to install large-diameter inspection wells based on carat tubes, including the following steps: Step 1, the main pipe socket, the main pipe spigot, the well chamber, the wellbore, two well chamber heads, two side guide pipes and a plurality of cross-tread pipes are produced separately by the carat pipe production line; Step 2, sealingly connecting the two well chamber heads at both ends of the well chamber by a hot melt welding process; Step 3, respectively connect the main pipe socket and the main pipe spigot to the interface holes of the two well chamber heads through the end surface hot-melt process; Step 4, welding the wellbore to the wellbore installation opening at the middle position of the upper end of the well chamber through an end face hot melting process; Step 5, using an extrusion welding gun to weld the internal and external connections between the main pipe and the end cap, and the internal and external connections between the wellbore and the well chamber to form a large-diameter inspection well; Step 6, use electric thermal fuse to connect the main socket and main socket of the large-diameter inspection well with the HDPE sewage pipe of the same diameter on site by electric thermal melting. The electric thermal fuse power-on current is controlled between 46A-65A, and the electric thermal melting time is controlled between 4 minutes-15 minutes.

[0023] By adopting the above technical solution, large-diameter sludge inspection wells are made of HDPE material and connected by end-face hot-melt process. They have the advantages of good sealing, light weight, and strong corrosion resistance. They can be applied to municipal large-diameter sewage pipes and accommodate more fluids, thereby improving the transportation efficiency of the municipal drainage system and meeting the requirements of large-flow transportation.

[0024] Optionally, step 7 is also included, installing the detection power supply communication module in the inner cavity of the side conduit corresponding to the opening of the electrical cavity, immersing the towline liquid level meter and the towline water quality sensor in the sludge tank, and electrically connecting them to the detection power supply communication module through communication wires and power supply wires.

[0025] By adopting the above technical solution, the detection power supply communication module, the tow-line liquid level meter and the tow-line water quality sensor can meet the real-time detection of the water level and water quality in the sludge tank.

[0026] In summary, the present invention includes at least one of the following beneficial technical effects: The present invention can provide a large-diameter inspection well based on carat tubes and a production process. The carat tube production line can independently produce a main pipe socket, a main pipe spigot, a well chamber, a well shaft, and two well chamber covers. After hot-melt connection on site, a sealed inspection well main structure can be formed, and an inspection well of extra-large size can be realized. The problems existing in traditional brick-built inspection wells, such as easy cracking, leakage caused by uneven settlement, difficulty in dredging, and small diameter of plastic inspection wells, can be solved.

[0027] The depth of the sedimentation tank is greater than or equal to 400mm. The longer the mud stays, the better the sedimentation effect. The sedimentation tank can store sediment and sludge to prevent it from directly entering the downstream pipeline and causing blockage or pollution. It can also serve as a mud storage during the cleaning operation, which is convenient for maintenance and management.

[0028] The sludge tank water level and water quality monitoring device adopts a towed-line liquid level meter and a towed-line water quality sensor to detect the water level and water quality in the sludge tank respectively. The detection power supply and communication module is installed in the internal space corresponding to the opening of the electrical cavity of the side duct of the inspection ladder to achieve reliable power supply and stable data forwarding. The detection data is then transmitted to the liquid level and water quality analysis alarm module through wireless transmission mode, thereby solving the technical difficulties in water level and water quality detection and output transmission of the sedimentation tank in the inspection well. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a large-diameter inspection well based on a carat tube and a water level and water quality monitoring device without a sludge tank installed in the present invention; Figure 2 It is a schematic structural diagram of a large-diameter inspection well based on a carat tube from a side view of the present invention; Figure 3 It is a structural schematic diagram of a large-caliber inspection and installation silt tank water level and water quality monitoring device based on a carat tube of the present invention; Figure 4 It is a partial structural schematic diagram of a detection power supply and communication module for installing a side conduit for a large-diameter inspection well based on a carat tube according to the present invention; Figure 5 It is a schematic diagram of the connection principle of the electrical components of the large-caliber inspection well sedimentation tank water level and water quality monitoring device based on the carat tube of the present invention; Description of the drawings: 1. Main pipe socket; 2. Main pipe plug; 3. Well chamber; 31. Sedimentation tank; 4. Wellbore; 5. Well chamber cover; 6. Inspection ladder; 61. Side duct; 611. Electrical cavity opening; 62. Cross step pipe; 71. Detection power supply and communication module; 711. Shell; 712. Power supply battery; 713. Power supply and communication circuit board; 714. Wireless communication antenna; 72. Drag-line liquid level gauge; 73. Drag-line water quality sensor; 74. Liquid level and water quality analysis alarm module. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] The embodiment of the present invention discloses a large-diameter inspection well based on a carat pipe and a production process.

[0032] Reference Figure 1-Figure 5 , Embodiment 1, a large-diameter inspection well based on a carat tube, the large-diameter inspection well comprises a main pipe socket 1, a main pipe plug 2, a well chamber 3, a wellbore 4 and two well chamber heads 5, the well chamber 3 is open at both ends, a wellbore installation opening is opened at the top, the two well chamber heads 5 are respectively provided with interface holes, the two well chamber heads 5 are respectively installed at the two ends of the well chamber 3, the main pipe socket 1 and the main pipe plug 2 are respectively installed at the interface holes of the two well chamber heads 5, and are located on both sides of the well chamber 3, and the bottom of the wellbore 4 is installed at the wellbore installation opening of the well chamber 3; The main pipe socket 1, the main pipe spigot 2, the well chamber 3, the wellbore 4 and the two well chamber covers 5 are all formed by HDPE pipes, and the joints are connected by hot-melt process. After the hot-melt connection is completed, an integrated large-diameter inspection well is formed.

[0033] The carat pipe production line independently produces the main pipe socket 1, the main pipe spigot 2, the well chamber 3, the well shaft 4, and two well chamber heads 5. After hot-melt connection on site, a sealed inspection well main structure can be formed, which can realize an extra-large inspection well and solve the problems of traditional brick inspection wells such as easy cracking, uneven settlement leading to leakage, difficulty in dredging, and small diameter of plastic inspection wells.

[0034] Embodiment 2: After the large-diameter inspection well is formed, a sludge pool 31 is formed between the lowest point of the inner wall of the well chamber 3 and the lowest point of the interface holes of the two well chamber heads 5, and the depth of the sludge pool 31 is greater than or equal to 400 mm.

[0035] The depth of the sedimentation tank 31 is greater than or equal to 400 mm. The longer the mud retention time, the better the sedimentation effect. The sedimentation tank 31 can store sediment and sludge to prevent them from directly entering the downstream pipeline and causing blockage or pollution. It can play the role of mud storage during the cleaning operation, which is convenient for maintenance and management.

[0036] Embodiment 3, the large-diameter inspection well also includes an inspection ladder 6, which is welded and installed on the inner wall of the wellbore 4 by a hot-melt process. The inspection ladder 6 is formed by HDPE pipe material, and the bottom of the inspection ladder 6 is flush with the top surface of the sludge tank 31.

[0037] In Example 4, the inspection ladder 6 is arc-shaped and fits the inner wall of the wellbore 4 and is centered. The inspection ladder 6 includes two side guide tubes 61 and multiple cross-tread tubes 62. Both sides of the multiple cross-tread tubes 62 are respectively installed on the sides of the two side guide tubes 61; An electrical appliance cavity opening 611 is provided in the middle of the side conduit 61 . The electrical appliance cavity opening 611 is used for assembling electrical components in the side conduit 61 .

[0038] The inspection ladder 6 is also formed of HDPE pipe material, which is convenient for on-site assembly and hot-melting on the inner wall of the wellbore 4. An electrical cavity opening 611 is provided in the middle of the side guide tube 61, and electrical components for water level inspection and water quality inspection can be installed.

[0039] Embodiment 5, the main pipe socket 1 and the main pipe spigot 2 of a large-diameter inspection well are used to connect a main pipe with a diameter greater than 1 meter.

[0040] Embodiment 6, the diameter of the well chamber 3 is greater than 1.5 meters.

[0041] It breaks through the current standard size of plastic inspection wells and has more application scenarios.

[0042] Embodiment 7 also includes a sludge tank water level and water quality monitoring device, which includes a detection power supply communication module 71, a tow-line liquid level gauge 72, a tow-line water quality sensor 73 and a liquid level and water quality analysis alarm module 74. The detection power supply communication module 71 is installed in the inner cavity of the side guide tube 61 corresponding to the electrical cavity opening 611. The tow-line liquid level gauge 72 and the tow-line water quality sensor 73 are electrically connected to the detection power supply communication module 71 through communication wires and power supply wires, respectively. The tow-line liquid level gauge 72 is used to detect the liquid level height of the sludge tank 31, and the tow-line water quality sensor 73 is used to detect the water quality of the sludge tank 31. The tow-line water quality sensor 73 and the liquid level and water quality analysis alarm module 74 communicate with the detection power supply communication module 71 to exchange detection data, and the detection power supply communication module 71 is wirelessly connected to the liquid level and water quality analysis alarm module 74.

[0043] The sludge tank water level and water quality monitoring device adopts a tow-line liquid level meter 72 and a tow-line water quality sensor 73 to respectively detect the water level and water quality in the sludge tank 31, and the output of the detection data is a difficult point. Here, the detection power supply communication module 71 is installed in the internal space corresponding to the electrical cavity opening 611 of the side guide tube 61 of the inspection ladder 6, which can achieve reliable power supply and stable data forwarding, and then transmit the detection data to the liquid level and water quality analysis alarm module 74 through wireless transmission. The specific liquid level and water quality analysis alarm module 74 can be based on a wireless communication receiving module, a data analysis computer and an alarm. The wireless communication receiving module and the detection power supply communication module 71 wirelessly exchange detection data, and the data analysis computer receives the inspection data. According to the design parameters of the sludge tank and the water level change law during normal operation, the normal water level range is set, and the threshold value of abnormal water level increase is determined. For example, it can be set to ±10% of the normal water level change range.

[0044] Realize the judgment of abnormal water level: record the historical data of the water level of the sedimentation tank 31, and by analyzing the trend change of the water level, it can be judged whether the water level rises abnormally. For example, if the water level rises rapidly in a short period of time, and external natural factors such as rainfall are not sufficient to explain this change, it may be caused by leakage.

[0045] The real-time water level data is compared with the preset abnormal threshold. If it exceeds the threshold, it is judged as abnormal increase.

[0046] Combined with other monitoring data, such as rainfall, surrounding soil moisture, pipeline flow, etc., a comprehensive analysis is conducted to rule out the impact of other factors on the water level.

[0047] If it is determined that there is an abnormal water level, the alarm will be controlled to alert the staff to pay attention; For water quality detection data, it is possible to detect the pH value, suspended matter, heavy metal ions, etc. in the water in the sedimentation tank 31, analyze the collected water quality data in real time or regularly, and compare them with the water quality standards. If it is detected that the water quality parameters exceed the preset threshold, the control alarm will sound to prompt the staff to pay attention. Embodiment 8, the detection power supply communication module 71 includes a shell 711, a power supply battery 712, a power supply communication circuit board 713 and a wireless communication antenna 714, the shell 711 is installed in the inner cavity of the side conduit 61 corresponding to the electrical cavity opening 611, the power supply battery 712 and the power supply communication circuit board 713 are respectively installed in the shell 711, the wireless communication antenna 714 is installed on the top of the shell 711, vertically toward the top opening of the side conduit 61, and is communicatively connected with the communication interface of the power supply communication circuit board 713, the power supply communication circuit board 713 is respectively electrically connected to the tow-line liquid level meter 72 and the tow-line water quality sensor 73 for power supply, collects the detection data of the tow-line liquid level meter 72 and the tow-line water quality sensor 73, and wirelessly communicates with the liquid level and water quality analysis alarm module 74 through the wireless communication antenna 714 to exchange the detection data.

[0048] Taking into account that the main body of the inspection well is located underground, in order to ensure stable data transmission, a wireless communication antenna 714 is used to realize wireless data transmission. The specific wireless communication antenna 714 can be a LoRa antenna, which can realize long-distance wireless communication. The detection and power supply communication module 71 is located as a whole in the inner cavity of the side conduit 61 corresponding to the electrical cavity opening 611, and the wireless signal is sent upward through the hollow position of the side conduit 61. The bottom is tethered with the towed-line liquid level meter 72 and the towed-line water quality sensor 73 through communication and power-carrying wires to realize tethered installation. Stable power supply and communication are achieved while meeting the detection of the towed-line liquid level meter 72 and the towed-line water quality sensor 73.

[0049] Example 9, a large-diameter inspection production and installation process based on carat pipes, used to install a large-diameter inspection well based on carat pipes, comprising the following steps: Step 1, the main pipe socket 1, the main pipe spigot 2, the well chamber 3, the wellbore 4, two well chamber heads 5, two side guide pipes 61 and a plurality of cross-tread pipes 62 are produced separately by the carat pipe production line; Step 2, sealingly connecting two well chamber heads 5 at both ends of the well chamber 3 by hot-melt welding process; Step 3, respectively connect the main pipe socket 1 and the main pipe spigot 2 to the interface holes of the two well chamber heads 5 through end face hot melt process; Step 4, welding the wellbore 4 to the wellbore installation opening at the middle position of the upper end of the well chamber 3 by end face hot melting process; Step 5, using an extrusion welding gun to weld the internal and external connections between the main pipe and the end cap, and the internal and external connections between the wellbore and the well chamber to form a large-diameter inspection well; Step 6, use electric thermal fuse to connect the HDPE sewage pipes of the same diameter on site with the main socket 1 and the main socket 2 of the large-diameter inspection well by electric thermal melting. The electric thermal fuse power-on current is controlled between 46A-65A, and the electric thermal melting time is controlled between 4 minutes and 15 minutes.

[0050] The large-diameter sediment inspection well is made of HDPE material and connected by end-face hot-melt process. It has the advantages of good sealing, light weight, and strong corrosion resistance. It can be applied to municipal large-diameter sewage pipes and accommodate more fluids, thereby improving the transportation efficiency of the municipal drainage system and meeting the requirements of large-flow transportation.

[0051] Example 9 also includes step 7, installing the detection power supply communication module 71 in the inner cavity of the side conduit 61 corresponding to the electrical cavity opening 611, immersing the towline liquid level meter 72 and the towline water quality sensor 73 in the sludge tank 31, and electrically connecting them to the detection power supply communication module 71 through communication wires and power supply wires.

[0052] The detection power supply communication module 71 , the tow-line liquid level meter 72 , and the tow-line water quality sensor 73 meet the requirements of real-time detection of the water level and water quality in the sludge tank 31 .

[0053] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Large-diameter inspection well based on carat tube, characterized by: A large-diameter inspection well comprises a main pipe socket (1), a main pipe plug (2), a well chamber (3), a wellbore (4) and two well chamber covers (5), wherein the well chamber (3) is open at both ends and a wellbore installation opening is provided at the top, the two well chamber covers (5) are respectively provided with interface holes, the two well chamber covers (5) are respectively installed at the two ends of the well chamber (3), the main pipe socket (1) and the main pipe plug (2) are respectively installed at the interface holes of the two well chamber covers (5) and are located at both sides of the well chamber (3), and the bottom of the wellbore (4) is installed at the wellbore installation opening of the well chamber (3); The main pipe socket (1), the main pipe spigot (2), the well chamber (3), the wellbore (4) and the two well chamber covers (5) are all formed by HDPE pipes, and the joints are connected by hot-melt process. After the hot-melt connection is completed, an integrated large-diameter inspection well is formed.

2. The large-diameter inspection well based on carat pipe according to claim 1 is characterized in that: When the large-diameter inspection well is formed, a sludge pool (31) is formed between the lowest point of the inner wall of the well chamber (3) and the lowest point of the interface holes of the two well chamber covers (5), and the depth of the sludge pool (31) is greater than or equal to 400 mm.

3. The large-diameter inspection well based on carat pipe according to claim 2 is characterized in that: The large-diameter inspection well also includes an inspection ladder (6), which is installed on the inner wall of the wellbore (4) by hot-melt welding. The inspection ladder (6) is formed by HDPE pipe material, and the bottom of the inspection ladder (6) is flush with the top surface of the sludge tank (31).

4. The large-diameter inspection well based on carat pipe according to claim 3 is characterized in that: The inspection ladder (6) is arc-shaped and fits the inner wall of the wellbore (4) and is centered. The inspection ladder (6) includes two side guide tubes (61) and a plurality of cross step tubes (62). The two sides of the plurality of cross step tubes (62) are respectively installed on the sides of the two side guide tubes (61). An electrical appliance cavity opening (611) is provided in the middle of the side conduit (61), and the electrical appliance cavity opening (611) is used for assembling electrical components in the side conduit (61).

5. The large-diameter inspection well based on carat pipe according to claim 1 is characterized in that: The main pipe socket (1) and main pipe spigot (2) of a large-diameter inspection well are used to connect a main pipe with a diameter greater than 1 meter.

6. The large-diameter inspection well based on carat pipe according to claim 1 is characterized in that: The diameter of the well chamber (3) is greater than 1.5 meters.

7. The large-diameter inspection well based on carat pipe according to claim 4 is characterized in that: The device also comprises a silt tank water level and water quality monitoring device, which comprises a detection power supply communication module (71), a tow-line liquid level meter (72), a tow-line water quality sensor (73) and a liquid level and water quality analysis alarm module (74). The detection power supply communication module (71) is installed at the inner cavity of the side guide tube (61) corresponding to the opening (611) of the electrical cavity. The tow-line liquid level meter (72) and the tow-line water quality sensor (73) are respectively electrically connected to the detection power supply communication module (71) via a communication wire and a power supply wire. The tow-line liquid level meter (72) is used to detect the liquid level height of the silt tank (31). The tow-line water quality sensor (73) is used to detect the water quality of the silt tank (31). The tow-line water quality sensor (73) and the liquid level and water quality analysis alarm module (74) respectively communicate with the detection power supply communication module (71) to exchange detection data. The detection power supply communication module (71) is wirelessly connected to the liquid level and water quality analysis alarm module (74).

8. The large-diameter inspection well based on carat pipe according to claim 7 is characterized in that: The detection power supply communication module (71) comprises a housing (711), a power supply battery (712), a power supply communication circuit board (713) and a wireless communication antenna (714); the housing (711) is mounted at an inner cavity of a side conduit (61) corresponding to an electrical cavity opening (611); the power supply battery (712) and the power supply communication circuit board (713) are respectively mounted in the housing (711); the wireless communication antenna (714) is mounted on the top of the housing (711), vertically facing the top opening of the side conduit (61), and is communicatively connected to a communication interface of the power supply communication circuit board (713); the power supply communication circuit board (713) is respectively electrically connected to a tow-line liquid level meter (72) and a tow-line water quality sensor (73) for power supply, collects detection data of the tow-line liquid level meter (72) and the tow-line water quality sensor (73), and wirelessly communicates with a liquid level and water quality analysis alarm module (74) to exchange detection data via the wireless communication antenna (714).

9. Large-caliber inspection production and installation process based on carat tubes, characterized by: The method for installing the large-diameter inspection well based on carat tube according to claim 7 comprises the following steps: Step 1, using a carat tube production line to separately produce a main pipe socket (1), a main pipe spigot (2), a well chamber (3), a wellbore (4), two well chamber covers (5), two side guide pipes (61) and a plurality of cross-tread pipes (62); Step 2, sealingly connecting two well chamber covers (5) at two ends of the well chamber (3) by a hot-melt welding process; Step 3, respectively connecting the main pipe socket (1) and the main pipe spigot (2) to the interface holes of the two well chamber heads (5) through end face hot-melt sealing process; Step 4, welding the wellbore (4) to the wellbore installation opening at the middle position of the upper end of the well chamber (3) by end surface hot melting process; Step 5, using an extrusion welding torch to weld the inner and outer connections between the main pipe and the end cap, and the inner and outer connections between the wellbore (4) and the well chamber (3) to form a large-diameter inspection well; Step 6, using an electric thermal fuse to connect the main pipe socket (1) and the main pipe socket (2) of the large-diameter inspection well with an HDPE sewage pipe of the same diameter on site by electric thermal melting, the electric thermal fuse current is controlled between 46A-65A, and the electric thermal melting time is controlled between 4 minutes and 15 minutes.

10. The large-caliber inspection production and installation process based on carat tubes according to claim 9 is characterized in that: The method further comprises a step (7), wherein a detection power supply communication module (71) is installed in the inner cavity of the side conduit (61) corresponding to the electrical cavity opening (611), a tow-line liquid level meter (72) and a tow-line water quality sensor (73) are immersed in the sludge tank (31), and are electrically connected to the detection power supply communication module (71) via a communication wire and a power supply wire.

Images