Swing type automatic pollution discharge spraying device

Abstract

The invention discloses a swing type automatic pollution discharge spraying device which comprises a spraying pipe body, a connecting seat body and a sealed bearing seat assembly. The sealed bearing seat assembly comprises a flange sealed bearing seat and a liquid inlet mechanism, the front end of the flange sealed bearing seat is connected with the rear end of the connecting seat body, and the rear end of the flange sealed bearing seat is connected with the front end of the liquid inlet mechanism; and the rear end of the spraying pipe body sequentially penetrates through the connecting seat body and the flange sealing bearing seat and is connected with the front end of the liquid inlet mechanism. The spraying pipe body, the center pull rod and the sealed bearing seat assembly are arranged, the center pull rod moves back and forth in the spraying pipe body, the problem that sludge impurities are stored in the spraying pipe body is solved, stable production is brought to the chemical production process, the production cost of an enterprise is reduced, and the backward technical hidden danger brought by a traditional fixed spraying method is changed.

Description

Technical Field

[0001] This invention belongs to the field of chemical equipment technology, and mainly relates to a swing-type automatic sewage spraying device. Background Technology

[0002] The coking system's integrated production process includes a gas primary cooler spray pipe system. The spray pipe is approximately 3.4 meters long, made of seamless carbon steel, with a diameter of DN50 and a wall thickness of approximately 5mm. Two rows of holes are drilled at 45° angles to the left and right at the bottom of the pipe. A DN80 flange is welded to the installation end. A DN80 blind flange is used to short-connect the pipe at the insertion end to prevent sagging. The pipe opening extends beyond the flange and is welded to it. A right-angle elbow and a DN50 flange are welded to the water inlet for connection to the water supply pipe. The main function of the spray pipe is to cool the gas, remove naphthalene, coal dust, and particulate matter, providing primary purification for downstream processes such as the electrostatic precipitator, desulfurization, denitrification, and the production of methanol and LNG from the gas.

[0003] The primary cooler unit is primarily structured using a box-type pipe array. The pipe arrays are manufactured in groups and installed in layers. The upper section, where the gas temperature is high, recovers hot water from the pipes. The middle section uses liquid ammonia spray for cooling. The lower section uses a mixture of ammonia and light tar sprayed for cooling and naphthalene washing (primarily ammonia washing for naphthalene). The pipe arrays contain cooling water circuits and a cooling tower, forming a circulation system. The liquid after ammonia spraying flows to a sedimentation tank below, where an ammonia pump recirculates the spraying pipes. After being cooled by the primary cooler, the gas enters the electric tar burner via a downstream gas pipeline to remove tar, then enters the blower inlet. A small portion of the gas is used in the large circulation pipeline after the blower, then flows to the desulfurization and denitrification process, returning to the coke oven to reheat approximately 48% of the gas, and the remainder is sent to the chemical production area to produce methanol, LNG, and other chemical products.

[0004] The coke oven gas primary cooler is a crucial first-stage purification device in the chemical production section. Its purification performance is a critical first step, directly affecting the normalization of process loads in the chemical production field. The performance of the spray pipe is one of the important links in the primary cooling of the primary cooler, naphthalene washing of the gas, light tar removal from the gas, and purification of particulate matter in the gas. The traditional installation method of spray pipe is flange-fixed, and the end plug of the pipe is welded as one piece. Impurities are easily stored inside the pipe end, resulting in poor local spraying effect and severely impacting the primary gas purification, placing a heavy burden on downstream processes. Once poor gas indicators are detected, it is necessary to start the backup primary cooler, shut down the emergency line for repairs, which is time-consuming and labor-intensive. Crucially, removing the spray pipe for repair requires crane assistance, causing significant losses to production. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned technical problems by proposing a swing-type automatic sewage spraying device; the technical solution adopted to achieve the above objective is: An oscillating automatic sewage spraying device includes a spray pipe body, a connecting seat body, and a sealed bearing housing assembly. The sealed bearing housing assembly includes a flange-sealed bearing housing and a liquid inlet mechanism. The front end of the flange-sealed bearing housing is connected to the rear end of the connecting seat body, and the rear end of the flange-sealed bearing housing is connected to the front end of the liquid inlet mechanism. The rear end of the spray pipe body passes through the connecting seat body and the flange-sealed bearing housing in sequence and is connected to the front end of the liquid inlet mechanism.

[0006] Preferably, the liquid inlet mechanism includes a clamp-type liquid inlet device, a through shaft, and a drive module. The front end of the through shaft is rotatably clamped in a flange sealing bearing seat. The clamp-type liquid inlet device is mounted on the through shaft and is provided with a positioning pin. The front end of the drive module is connected to the rear end of the through shaft. The side wall of the through shaft is provided with a through shaft liquid inlet hole, and the clamp-type liquid inlet device is provided with a clamp-type liquid inlet pipe that matches the through shaft liquid inlet hole.

[0007] Preferably, the spray pipe body has a front-end open structure, and a spray pipe drain port is provided on the side wall near the front end of the spray pipe body. A central pull rod is provided in the inner cavity of the spray pipe body. Several spray pipe spray holes are provided on the side wall of the spray pipe body between the spray pipe drain port and the connecting seat. The rear end of the central pull rod passes through the spray pipe body and the shaft in sequence and is connected to the drive module. A pull rod front piston is provided at the front end of the central pull rod, and a water inlet piston is provided on the outer wall near the rear end of the central pull rod.

[0008] Preferably, the outer wall of the spray pipe is provided with a spray pipe diverter plate, which is located on the outer wall of the spray pipe above the spray pipe nozzle.

[0009] Preferably, the spray pipe diverter plate is an arc shape that matches the outer wall of the spray pipe body, and the center of the spray pipe diverter plate corresponds to the center of the spray pipe injection hole; the edge of the spray pipe diverter plate is provided with umbrella-shaped serrations.

[0010] Preferably, the drain outlet of the spray pipe is located below the spray pipe body, and the spray nozzle of the spray pipe is located above the spray pipe body.

[0011] Preferably, the central tie rod is provided with a tie rod support frame in the middle.

[0012] Preferably, the front and rear ends of the piston at the front of the central pull rod are respectively provided with annular scrapers; the front and rear ends of the piston at the inlet of the central pull rod are respectively provided with annular scrapers.

[0013] Preferably, the drive module includes a support base, an electric cylinder, a planetary reducer, and a servo motor; the front end of the support base is connected to the rear end via a shaft, the rear end of the support base is connected to the front end of the electric cylinder, the rear end of the electric cylinder is connected to the output end of the planetary reducer, and the input end of the planetary reducer is connected to the output end of the servo motor; the piston extension rod of the electric cylinder is connected to the rear end of the central pull rod.

[0014] Preferably, the support body is provided with a flange ring, and the flange ring of the support body is connected to a flange-type linkage handle. The rear end of the shaft passes through the flange-type linkage handle and is connected to the support body.

[0015] Preferably, a front-end support mechanism is also included, which includes a front-end support seat for the spray pipe, a front-end connection seat for the primary cooling tower, and a plug for the installation and adjustment hole. The front-end support mechanism is installed in the front-end connection seat for the primary cooling tower, and the front end of the spray pipe body is inserted into the front-end support seat for the spray pipe from the rear end. The front end of the front-end support seat for the spray pipe is provided with an internal threaded hole for installation and adjustment, and the plug for the installation and adjustment hole is connected to the internal threaded hole for installation and adjustment.

[0016] The beneficial effects of this invention are as follows: The swing-type automatic sewage spraying device of the present invention solves the problem of sludge and impurities stored inside the spraying pipe by setting up a spraying pipe body, a central tie rod and a sealed bearing seat assembly. The central tie rod moves back and forth inside the spraying pipe body. The spraying pipe body can rotate and swing to form a large cross-over spraying area. The swinging motion can distribute the sprayed water more evenly in the space, and the cooling effect of coal gas and the cleaning effect of naphthalene are better. This brings stable production to the chemical production process, reduces the production cost of enterprises, and changes the backward technical risks of traditional fixed spraying methods. Attached Figure Description

[0017] Figure 1 This is a front view of a structural schematic diagram of Embodiment 1 of the present invention; Figure 2 This is a top view of a structural schematic diagram of Embodiment 1 of the present invention; Figure 3 This is a perspective view of the structural schematic diagram of Embodiment 1 of the present invention; Figure 4 This is a perspective view of the spray pipe structure in this invention; Figure 5 This is a front view of a schematic diagram of the central tie rod structure in this invention; Figure 6 This is a top view of the central tie rod structure in this invention; Figure 7 for Figure 5 AA section view; Figure 8 for Figure 5 A three-dimensional image; Figure 9 for Figure 5 BB cross-sectional view; Figure 10 This is a cross-sectional view of the front piston of the pull rod in this invention; Figure 11 This is a perspective view of the connecting seat in this invention; Figure 12 This is a perspective view of the flange-sealed bearing housing in this invention; Figure 13 This is a perspective view of the clamp-type liquid inlet device of the present invention; Figure 14 This is a perspective view of the shaft in this invention; Figure 15 This is a perspective view of the flange-type linkage handle in this invention; Figure 16 This is a perspective view of the support base in this invention; Figure 17 This is a front view of a structural schematic diagram of Embodiment 2 of the present invention; Figure 18 This is a perspective view of the structural schematic diagram of Embodiment 2 of the present invention; Figure 19 This is the front view of the structural schematic diagram of the front support mechanism; Figure 20 A three-dimensional view of the structural schematic diagram of the front-end support mechanism; Figure 21 A three-dimensional view of the structural schematic diagram of the front end support of the spray pipe; Figure 22 This is a longitudinal sectional view of the support base at the front end of the spray pipe; Figure 23 This is a three-dimensional view of the structural schematic diagram of the front-end connection seat of the primary cooling tower; In the diagram: 1-Spray pipe body, 2-Central tie rod, 3-Connecting seat, 4-Flange sealed bearing seat, 5-Pipe clamp type liquid inlet device, 6-Through shaft, 7-Flange type linkage handle, 8-Support seat, 9-Electric cylinder, 10-Planetary reducer, 11-Servo motor, 12-Spray pipe front end support seat, 13-Primary cooling tower front end connecting seat, 14-Installation and debugging hole plug. 101-Spray pipe drain outlet, 102-Spray pipe diverter plate, 103-Spray pipe injection hole, 201-Tie rod support frame, 202-Tie rod front piston, 203-Inlet piston, 501-Pipe clamp device liquid inlet pipe, 502-Positioning pin mounting hole, 601-Through shaft liquid inlet hole, 121-Installation and debugging internal thread hole. Detailed Implementation

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0020] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0021] Specific embodiments of the present invention:

[0022] An oscillating automatic sewage spraying device includes a spray pipe body 1, a connecting seat body 3, and a sealed bearing housing assembly. The sealed bearing housing assembly includes a flange-sealed bearing housing 4 and a liquid inlet mechanism. The front end of the flange-sealed bearing housing 4 is connected to the rear end of the connecting seat body 3, and the rear end of the flange-sealed bearing housing 4 is connected to the front end of the liquid inlet mechanism. The rear end of the spray pipe body 1 passes sequentially through the connecting seat body 3 and the flange-sealed bearing housing 4 and connects to the front end of the liquid inlet mechanism. The connecting seat body 3 is connected to the outer wall of the primary cooler tower, serving to fix the device to the primary cooler.

[0023] The liquid inlet mechanism includes a clamp-type liquid inlet device 5, a through shaft 6, and a drive module. The front end of the through shaft 6 is rotatably clamped in the flange sealing bearing seat 4. The clamp-type liquid inlet device 5 is fitted onto the through shaft 6. Positioning pins are provided on both the clamp-type liquid inlet device 5 and the through shaft 6. The clamp-type liquid inlet device 5 has a positioning pin mounting hole 502, and the through shaft 6 has a mounting hole that matches the positioning pin mounting hole 502. The front end of the drive module is connected to the rear end of the through shaft 6. The side wall of the through shaft 6 has a through shaft liquid inlet hole 601, and the clamp-type liquid inlet device 5 has a clamp-type liquid inlet pipe 501 that matches the through shaft liquid inlet hole 601.

[0024] The spray pipe body 1 has an open front end. A drain outlet 101 is located on the side wall near the front end of the spray pipe body 1, and a central pull rod 2 is located within the inner cavity of the spray pipe body 1. Several spray nozzles 103 are located on the side wall of the spray pipe body 1 between the drain outlet 101 and the connecting seat 3. The rear end of the central pull rod 2 passes through the spray pipe body 1 and the shaft 6, connecting to the drive module. A front piston 202 is located at the front end of the central pull rod 2, and a water inlet piston 203 is located on the outer wall near the rear end of the central pull rod 2.

[0025] See Figure 4 The outer wall of the spray pipe body 1 is provided with a spray pipe diverter plate 102, which is located on the outer wall of the spray pipe body 1 above the spray pipe injection hole 103. The spray pipe diverter plate 102 is arc-shaped to match the outer wall of the spray pipe body 1, and the center of the spray pipe diverter plate 102 corresponds to the center of the spray pipe injection hole 103. The edge of the spray pipe diverter plate 102 is provided with umbrella-shaped serrations. The spray pipe drain outlet 101 is located below the spray pipe body 1, and the spray pipe injection hole 103 is located above the spray pipe body 1.

[0026] See Figure 5-10 A tie rod support frame 201 is provided in the middle of the central tie rod 2. Annular scrapers 2021 are provided at the front and rear ends of the tie rod front piston 202 of the central tie rod 2. Annular scrapers are provided at the front and rear ends of the water inlet piston 203 of the central tie rod 2.

[0027] See Figure 3 , Figure 11-16 The drive module includes a support base 8, an electric cylinder 9, a planetary reducer 10, and a servo motor 11. The front end of the support base 8 is connected to the rear end via a shaft 6. The rear end of the support base 8 is connected to the front end of the electric cylinder 9. The rear end of the electric cylinder 9 is connected to the output end of the planetary reducer 10. The input end of the planetary reducer 10 is connected to the output end of the servo motor 11. The piston extension rod of the electric cylinder 9 is connected to the rear end of the central tie rod 2. The connection relationship and working principle between the electric cylinder 9, the planetary reducer 10, and the servo motor 11 are existing technologies and will not be described further here.

[0028] See Figure 3 , Figure 16 The support body 8 is equipped with a flange ring, and the flange ring of the support body 8 is connected to a flange-type linkage handle 7. The rear end of the shaft 6 passes through the flange-type linkage handle 7 and is connected to the support body 8. The rotation of the flange-type linkage handle 7 can drive the shaft 6 to rotate, thereby driving the spray pipe 1 to rotate or swing.

[0029] The specific working principle of this application is as follows: 1. Automatic sewage discharge from the spray pipe body The spray pipe body 1 has an internal automatic sewage discharge structure. The front end of the spray pipe body 1 is open, and the inner wall is machined and ground to ensure the smoothness of the inner wall of the pipe. The sewage discharge port 101 of the spray pipe is opened about 100mm below the front end.

[0030] The central pull rod 2 has a front piston 202 at its front end and an inlet piston 203 near its rear end on its outer wall. The front and rear ends of the front piston 202 are each equipped with annular scrapers 2021; the front and rear ends of the inlet piston 203 are also equipped with annular scrapers 2021. When the front piston 202 and inlet piston 203 move forward or backward inside the spray pipe 1, the annular scrapers 2021 at both ends push away impurities inside the spray pipe 1, protecting the piston's middle section seal from damage. The central pull rod 2 is made of 304 stainless steel. During spraying, the piston 202 at the front of the lever is at the rear end of the spray pipe drain port 101, and the inlet piston 203 is at the designated position within the stroke range. When the sewage is discharged according to the set time, the electric cylinder 9 pushes the central lever 2 towards the front end of the spray pipe 1 past the spray pipe drain port 101. The sediment and impurities inside the spray pipe 1 are discharged through the spray pipe drain port 101. The size of the spray pipe drain port 101 is calculated and positioned according to the pressure flow meter (an intelligent transmitter is installed after the water supply valve of each spray pipe 1). If the spray pipe drain port 101 is opened too wide, the pressure will disappear instantly and the spraying will stop. The cleaning airflow cannot be allowed to slip away from the stopped spraying point. Sewage discharge and depressurization spraying are required at the same time, so the spraying cannot be stopped. The sewage discharge time can be set, for example, 3-10 seconds. After that, the central lever 2 returns to its original position and resumes high-pressure spraying of ammonia water, which solves the problem of sludge and impurities stored inside the spray pipe 1.

[0031] 2. The spray pipe body rotates and swings at an angle. The spray pipe 1 has a rotation and swing function. The swing action is achieved by designing a sealed bearing housing assembly on the fixed flange. The sealed bearing housing assembly includes: flange sealed bearing housing 4, through shaft 6, pipe clamp type liquid inlet device 5, flange type linkage handle 7, support base 8, electric cylinder 9, servo motor 11, and planetary reducer 10.

[0032] The inlet pipe 501 of the clamp device is connected using a high-pressure steel wire hose. When swinging, the hose moves slightly with the sealed bearing housing assembly. Seven or more sealed bearing housing assemblies are grouped together and equipped with an explosion-proof intelligent angular stroke actuator. The flange-type linkage handles 7 of multiple sealed bearing housing assemblies are connected to the swing arm of the actuator with a pull rod. Through the PLC control system, each sealed bearing housing assembly can be linked to rotate and swing. The position display, swing speed, and swing amplitude range of 180° can be set according to the requirements of naphthalene washing and cleaning.

[0033] The linked swing motion optimizes the ammonia spraying effect. The cooling pipe is located 500mm below the spray pipe body 1, and the spray pipe distributor 102 creates an umbrella-shaped distribution of the water column, resulting in a large spray area. The swing motion further distributes the sprayed water more evenly throughout the space, improving the cooling effect on the gas and the cleaning of naphthalene. This new swing-type automatic sewage spraying device brings stable production to chemical processes, reduces enterprise production costs, and eliminates the outdated technological risks associated with traditional fixed spraying methods.

[0034] New type of spray pipe device The spray nozzle 103 is designed on the top of the spray pipe body 1. The diameter of the hole is 8-15mm and the number is 29-38. It can be matched according to the model of the primary cooler.

[0035] A spray pipe diverter plate 102 (with a thickness of 2-5mm due to limited installation space) is designed above the spray pipe injection hole 103. The sides of the spray pipe diverter plate 102 corresponding to the spray pipe injection hole 103 are semi-circular and serrated edges. The arc shape of the spray pipe diverter plate 102 forms the same angle as the arc of the spray pipe body 1. The vertical spacing is determined according to the diameter of the spray pipe body 1, which is approximately 11-20mm. For example, when the mounting hole on the primary cooler is a DN80 flange, the spacing between the spray pipe body 1 and the spray pipe diverter plate 102 is designed to be within 80mm. If it is larger, it cannot be installed. The specific size is determined according to the diameter of the mounting hole on the primary cooler equipment body.

[0036] The spray nozzle 103 is designed above the spray pipe body 1. The advantage is that it avoids the spray nozzle 103 being blocked by impurities. Impurity particles flow at the bottom of the spray pipe body 1, so the spray nozzle 103 above the spray pipe body 1 sprays water smoothly. Therefore, it is better than the original two-row design with the water outlet of the spray pipe body 1 at a 45° angle on both sides below.

[0037] The spray pipe body 1 has a spray pipe drain port 101 at the front end. The PLC controls the servo drive electric cylinder 9 to push the central pull rod 2 to automatically drain the sewage at regular intervals. It can drain the sewage every few minutes, solving the problem of the spray nozzle being blocked by impurities.

[0038] Traditional spray pipe body 1 has two rows of outlets at a 45° angle on both sides at the bottom. The front end of the pipe is welded with a blind flange. The spray effect is two rows of water jets, which consumes a lot of water and has poor cleaning effect. The spray nozzles are often blocked. The resistance of the spray nozzles is high and the blockage is more serious because of the special spray heads installed at the spray nozzles. In addition, the limited installation space leads to frequent maintenance, unstable gas purification effect, and overload operation of chemical production areas. The original water supply system has a small supporting pipe network, and the pressure and flow of the high-pressure water pump cannot meet the technical requirements of the special spray heads. Replacing the water supply system and increasing the pump station would be a huge investment and would face the problem of increased energy consumption. Therefore, the industry faces the problem of technological backwardness.

[0039] The spray pipe diverter plate 102 of this application is integrally formed according to the length of the spray pipe body 1 and the hole spacing, avoiding the impact of single-piece installation on accuracy. When viewed vertically, it looks like a string of small lanterns. The center of each spray pipe diverter plate 102 corresponds to the center of the spray pipe injection hole 103. The two sides between the spray pipe diverter plates 102 are reserved support plates and welded to the pipe as support columns.

[0040] The spray pipe diverter plate 102 shields the water column, forming an umbrella-shaped distribution with a large spray area. The arc shape divides the water column into two downward-facing water layers at a 45° angle, while the serrated shape breaks the water layer sprayed from the diverter plate into scattered water mist and splashes. As the spray pipe body rotates and swings at an angle 1, the gas flow is superimposed and cleaned when passing through the swinging water splash layer. This effectively cleans and separates impurities, naphthalene, and light tar in the mixed gas, achieving optimal cooling effect and providing a guarantee for downstream deep processing, thus completely solving the industry's problems.

[0041] 4. PLC Control System The swing-type automatic sewage spraying device of this application can be equipped with a control system. Automatic sewage discharge and swinging are controlled by a PLC. The sewage discharge piston rod is connected to the electric cylinder push rod, and the ball screw shaft inside the electric cylinder push rod is connected to the output shaft of the planetary reducer. The input end of the planetary reducer is connected to the servo motor. The driver / servo motor uses a bus-type absolute encoder control method. The main control PLC configuration includes: a domestic CPU module, DC24V power supply, 32 built-in I / O points (DI 16, DO 16, 1 RS485, 1 Ethernet, EtherCAT bus: 8 axes, built-in 1 MiniUSB-B port, and integrated RTC clock function. The servo motor configuration is: 400W, 220V, with a brake, 3000 rpm, 17-bit multi-turn magnetic encoder absolute value. The optional driver is a DX50D single-phase 220V driver 400W, EtherCAT standard type. The PLC system has G-code and pulse signal programming capabilities, automatic forward and backward control of the piston rod, and automatic swinging achieved by connecting the swing handle actuator to the system. Pressure transmitters are installed on the water supply pipes, and pressure transmitters are also installed after the branch valves on each spray pipe. Gas detection signals after the primary cooler are connected to the system channel cards to form a closed-loop programming control, realizing remote control logic. This enables the umbrella-shaped spray swing-type sewage discharge device of the gas primary cooler to achieve: automatic sewage discharge, diversified automatic swing spraying actions, and a digital control model. It has the ability to operate and control locally and remotely. The data is connected to the computer in the intelligent control room via network cable or fiber optic cable, providing clear on-site data, fault alarm prompts, easy and convenient operation, and stable production. This normalizes the spraying and cleaning of the primary cooler and exponentially increases the safe operating cycle of the process.

[0042] The swing-type automatic sewage spraying device of the present invention solves the problem of sludge and impurities stored inside the spraying pipe by setting up a spraying pipe body, a central tie rod and a sealed bearing seat assembly. The central tie rod moves back and forth inside the spraying pipe body. The spraying pipe body can rotate and swing, with a large spraying area. The swinging motion can distribute the sprayed water more evenly in the space, resulting in better cooling of coal gas and cleaning of naphthalene. This brings stable production to the chemical production process, reduces the production cost of enterprises, and changes the backward technical risks brought about by the traditional fixed spraying method.

[0043] Example 2 is an improvement on Example 1. The similarities will not be repeated here; the differences are as follows: To improve the stability of the swing-type automatic sewage spraying device, a front-end support mechanism is added based on Embodiment 1.

[0044] The front-end support mechanism includes a spray pipe front-end support seat 12, a primary cooling tower front-end connection seat 13, and an installation and debugging hole plug 14.

[0045] The primary cooling tower front-end connecting seat 13 is connected to the outer wall of the primary cooling tower wall corresponding to the front end of the spray pipe body 1. The front-end support mechanism is installed in the primary cooling tower front-end connecting seat 13. The front end of the spray pipe body 1 is inserted into the spray pipe front-end support seat 12 from the rear end of the spray pipe front-end support seat 12. The front end of the spray pipe front-end support seat 12 is provided with an installation and adjustment internal thread hole 121, and the installation and adjustment hole plug 14 is connected to the installation and adjustment internal thread hole 121.

[0046] See Figure 17-18 When the spray pipe 1 rotates, the front end of the spray pipe 1 is always in the inner cavity of the rear end of the spray pipe front end support seat 12. The spray pipe front end support seat 12 supports the spray pipe 1, improving the stability and service life of the swing-type automatic sewage spraying device.

[0047] The installation and debugging hole plug 14 can be installed or removed as needed for easy maintenance.

[0048] The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A swing-type automatic sewage spraying device, characterized in that, It includes a spray pipe body, a connecting seat body, and a sealed bearing housing assembly; the sealed bearing housing assembly includes a flange-sealed bearing housing and a liquid inlet mechanism, the front end of the flange-sealed bearing housing is connected to the rear end of the connecting seat body, and the rear end of the flange-sealed bearing housing is connected to the front end of the liquid inlet mechanism; the rear end of the spray pipe body passes through the connecting seat body and the flange-sealed bearing housing in sequence and is connected to the front end of the liquid inlet mechanism.

2. The swing-type automatic sewage spraying device according to claim 1, characterized in that, The liquid inlet mechanism includes a clamp-type liquid inlet device, a through shaft, and a drive module. The front end of the through shaft is rotatably clamped in a flange-sealed bearing seat. The clamp-type liquid inlet device is mounted on the through shaft and is provided with a positioning pin. The front end of the drive module is connected to the rear end of the through shaft. The side wall of the through shaft is provided with a through shaft liquid inlet hole, and the clamp-type liquid inlet device is provided with a clamp-type liquid inlet pipe that matches the through shaft liquid inlet hole.

3. The swing-type automatic sewage spraying device according to claim 2, characterized in that, The spray pipe body has a front-opening structure. A spray pipe drain port is provided on the side wall near the front end of the spray pipe body. A central pull rod is provided in the inner cavity of the spray pipe body. Several spray pipe spray holes are provided on the side wall of the spray pipe body between the spray pipe drain port and the connecting seat. The rear end of the central pull rod passes through the spray pipe body and the shaft and is connected to the drive module. A pull rod front piston is provided at the front end of the central pull rod, and a water inlet piston is provided on the outer wall near the rear end of the central pull rod.

4. The swing-type automatic sewage spraying device according to claim 3, characterized in that, The outer wall of the spray pipe is provided with a spray pipe diverter plate, which is located on the outer wall of the spray pipe above the spray nozzle.

5. The swing-type automatic sewage spraying device according to claim 4, characterized in that, The spray pipe diverter plate is an arc shape that matches the outer wall of the spray pipe body, and the center of the spray pipe diverter plate corresponds to the center of the spray pipe injection hole; the edge of the spray pipe diverter plate is provided with umbrella-shaped serrations.

6. The swing-type automatic sewage spraying device according to claim 5, characterized in that, The drain outlet of the spray pipe is located at the bottom of the spray pipe body, and the spray nozzle of the spray pipe is located at the top of the spray pipe body.

7. The swing-type automatic sewage spraying device according to claim 6, characterized in that, The central tie rod is provided with a tie rod support frame in the middle; the front end and rear end of the tie rod front piston of the central tie rod are respectively provided with annular scrapers; the front end and rear end of the water inlet piston of the central tie rod are respectively provided with annular scrapers.

8. The swing-type automatic sewage spraying device according to claim 7, characterized in that, The drive module includes a support base, an electric cylinder, a planetary reducer, and a servo motor; the front end of the support base is connected to the rear end via a shaft, the rear end of the support base is connected to the front end of the electric cylinder, the rear end of the electric cylinder is connected to the output end of the planetary reducer, and the input end of the planetary reducer is connected to the output end of the servo motor; the piston extension rod of the electric cylinder is connected to the rear end of the central pull rod.

9. The swing-type automatic sewage spraying device according to claim 8, characterized in that, The support body is provided with a flange ring, and the flange ring of the support body is connected to a flange-type linkage handle. The rear end of the shaft passes through the flange-type linkage handle and is connected to the support body.

10. The swing-type automatic sewage spraying device according to claim 9, characterized in that, It also includes a front-end support mechanism, which includes a front-end support base for the spray pipe, a front-end connection base for the primary cooling tower, and a plug for the installation and debugging hole. The front-end support mechanism is installed in the front-end connection base for the primary cooling tower. The front end of the spray pipe body is inserted into the front-end support base for the spray pipe from the rear end. The front end of the front-end support base for the spray pipe is provided with an internal threaded hole for installation and debugging, and the plug for the installation and debugging hole is connected to the internal threaded hole for installation and debugging.

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