Underfurnace water replenishing tank communicating pipe of garbage incinerator and pipeline dredging device and water replenishing machine of underfurnace water replenishing tank communicating pipe

Abstract

According to the communicating pipe of the water replenishing tank below the garbage incinerator, a hard pipe is further connected to a pipe opening, located on one side of the water replenishing tank, of the communicating pipe, the pipe opening of the hard pipe is located below the normal working liquid level of the water replenishing tank, and the hard pipe serves as an extension pipe of the communicating pipe and faces upwards; the communicating pipe and the hard pipe are connected to form a water channel communicating pipeline between the water replenishing tank and the slag discharging machine box groove (or the furnace bottom ash conveying machine box groove); the pipeline dredging device and the water replenishing machine are further arranged, when the pipeline needs to be dredged, a dredging water source is introduced into the water way communicating pipeline through the pipeline dredging device and finally flows into the slag extractor or the ash conveying machine box groove, the water way communicating pipeline is dredged through the pressure of water, and meanwhile water replenishing is conducted on the box groove; and the existing technical problems are effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the garbage incinerator under the water tank cleaning technology, especially to the garbage incinerator under the water tank connecting pipe and its pipeline dredging device and water supply machine. BACKGROUND

[0002] In the garbage incinerator system, in order to collect the ash produced by the garbage combustion, the furnace bottom ash conveying machine (or furnace under the ash conveying machine, referred to as ash conveying machine in this paper) is arranged at the lower side of the furnace, and the slag machine (or slag machine) is arranged at the end of the furnace. Both are located at the bottom of the furnace, but the former is located at the lower side of the furnace and the latter is located at the lower side of the end. The furnace bottom ash conveying machine is used for receiving the ash or garbage falling from the furnace grid during the garbage combustion process and conveying it to the slag pool or the slag machine box slot; and the slag machine is used for receiving the ash after the garbage combustion and discharging it into the slag pool.

[0003] The slag machine and the furnace bottom ash conveying machine are two independent devices, which are independently operated and not connected to each other, and have the following common points:

[0004] First, both are through the top of the slag port to receive the ash;

[0005] Second, both have a box slot and set a conveying device in the box slot for conveying the ash;

[0006] Third, both need to store water in the box slot and the water level reaches the slag port position to realize the water sealing of the slag port;

[0007] Fourth, because the garbage falls into the water and absorbs the water, the garbage is discharged and also takes away the water, which causes the continuous loss of water in the box slot. In order to maintain the stable water level, it is necessary to continuously supply water to the box slot. Therefore, a water supply tank needs to be arranged beside the slag machine or the ash conveying machine box slot and a set of automatic water supply device is configured to maintain the stable water level (hereinafter referred to as the stable automatic water supply device). The connecting pipe is arranged between the box slot and the water supply tank, and the box slot and the water supply tank are connected through the connecting pipe to form the water connection. The stable automatic water supply device supplies water to the water supply tank and indirectly supplies water to the box slot through the connecting pipe.

[0008] In the prior art, since the connecting pipe only plays the role of water connection, therefore, the connecting pipe only needs to be located below the normal working liquid level and the two ports are respectively connected to the slot cavity of the box slot and the water supply tank to meet the requirements.

[0009] In actual production operations, the water in the tank is extremely turbid, containing large amounts of sludge and surface residue. Because the tank is connected to the water supply tank, some of the sludge and residue in the tank flows back into the water supply tank through the connecting pipe, resulting in a large amount of sludge accumulation at the bottom of the water supply tank and clogging the connecting pipe. In addition, suspended matter and surface residue in the water easily form scale on the surface of water level monitoring components (such as the float), ultimately affecting the normal operation of the automatic water supply device.

[0010] Therefore, maintenance personnel need to frequently conduct on-site inspections and promptly salvage the scum from the water supply tank. However, since the equipment in the waste incineration power plant needs to operate continuously, the water supply tank cannot be emptied and desilted during operation, which makes equipment maintenance very difficult. Summary of the Invention

[0011] In order to solve one of the problems in the prior art, the present invention proposes a connecting pipe for the water supply tank under the furnace of a waste incinerator. A hard pipe (i.e., a rigid pipe) is connected to the pipe opening of the connecting pipe located on one side of the water supply tank. The pipe opening of the hard pipe is located below the normal working liquid level of the water supply tank. The hard pipe serves as an extension pipe of the connecting pipe and the pipe opening faces upward. The connecting pipe and the hard pipe are connected to form a water channel connecting pipe between the water supply tank and the slag discharger box trough (or the furnace bottom ash conveyor box trough). A pipeline dredging device and a water supply machine are also provided. When the pipeline needs to be dredged, the pipeline dredging device is used to introduce the dredging water source into the water channel connecting pipe and finally flow into the slag discharger or ash conveyor box trough. The water pressure is used to dredge the water channel connecting pipe and simultaneously replenish the box trough.

[0012] It should be noted that, in this article, the "tank" can refer to either the slag machine tank or the ash conveyor tank; the "water supply tank" can refer to either the slag machine water supply tank or the ash conveyor water supply tank. Furthermore, in this article, the connecting pipe between the water supply tank and the tank is referred to as the "connecting pipe," and the normal operating liquid level of the water supply tank (or tank) is referred to as the "working liquid level" (or "working liquid surface").

[0013] Furthermore, it should be noted that the present invention is not limited to the under-furnace water supply tank of a waste incinerator, but is also applicable to other fields facing the same technical problem. The technical problem is that the water supply tank needs to supply water to the main tank tank through a connecting pipe, and during use, the main tank tank is prone to produce pollutants such as slag or sludge. The pollutants flow back into the tank cavity of the water supply tank through the connecting pipe, eventually causing scaling of the water level monitoring element (such as the float) of the water supply device, affecting the normal operation of the water supply device, and causing clogging of the connecting pipe, which affects the water supply of the water supply tank to the main tank tank.

[0014] The application solves the technical problem by the following scheme: the connecting pipe between the tank and the water supply tank of the garbage incinerator, characterized in that a hard pipe is fixed to the pipe opening on the side of the water supply tank, the hard pipe is an extension of the connecting pipe, and the pipe opening of the hard pipe is below the normal working level of the water supply tank.

[0015] Preferably, the hard pipe has an elbow structure, the hard pipe has two pipe openings, one pipe opening of the hard pipe is at a low position and is fixed to the pipe opening of the connecting pipe to form a sealed connection, and the other pipe opening of the hard pipe (hereinafter referred to as the pipe opening of the hard pipe) is at a high position and is below the normal working level of the water supply tank and faces upward.

[0016] Another scheme adopted by the application to solve the technical problem is a pipeline dredging device, which comprises a connecting pipe between a tank and a water supply tank, characterized in that a hard pipe is fixed to the pipe opening on the side of the water supply tank, the hard pipe is an extension of the connecting pipe, and the pipe opening of the hard pipe is below the normal working level of the water supply tank and faces upward.

[0017] It also comprises a dredging water source.

[0018] It is also provided with a nozzle, the nozzle has an upper pipe opening and a lower pipe opening, and the dredging water source is connected to the upper pipe opening of the nozzle.

[0019] A transition hose is also provided at the front end of the nozzle, the transition hose has bendable and deformable properties, and the transition hose serves as an intermediate connecting pipe between the dredging water source and the nozzle.

[0020] The dredging water source is controlled by a dredging automatic water supply device or a water pump sewage device.

[0021] The dredging automatic water supply device is controlled to be opened or closed by an electric valve, the water source of the dredging automatic water supply device comes from a municipal water pipe network or a factory waste water that can be reused, the pipeline is dredged by the water supply pressure through the water supply of the dredging automatic water supply device.

[0022] The water pump sewage device comprises a water pump and a sewage pipeline, the inlet of the water pump is connected to the sewage outlet at the bottom of the water supply tank through the sewage pipeline, and the outlet of the water pump is connected to the nozzle through a pipeline, the water pump is started when pipeline dredging is needed, the sludge and sewage at the bottom of the water supply tank are discharged into the tank of the slag extractor through the water pipeline, and the pipeline is dredged by the pressure of the discharged water.

[0023] A check valve is provided on the sewage pipeline of the water pump sewage device, and the check valve prevents water from flowing from the tank to the water supply tank through the sewage pipeline in the reverse direction.

[0024] The driving assembly includes an electric push rod or a cylinder, and drives the nozzle to ascend or descend to make the lower nozzle of the nozzle dock with or disconnect from the hard pipe nozzle;

[0025] When the pipeline needs to be dredged, the driving assembly drives the nozzle to descend to make the lower nozzle of the nozzle dock with the hard pipe nozzle, so that the communication pipe, the hard pipe and the nozzle are sequentially connected to form a waterway communication pipeline for dredging; the electric valve of the automatic water replenishing device or the water pump of the water pump sewage device is opened, and the dredging water source flows into the waterway communication pipeline through the nozzle and finally enters the tank groove;

[0026] When the pipeline dredging is completed, the electric valve of the automatic water replenishing device or the water pump of the water pump sewage device is closed, and the dredging water source stops flowing; when the water level of the water replenishing tank is at the normal working level, the driving assembly drives the nozzle to ascend to make the lower nozzle of the nozzle disconnect from the hard pipe nozzle, so that the communication pipe and the hard pipe are sequentially connected to form a waterway communication pipeline for connecting the water replenishing tank and the tank groove.

[0027] Preferably, the bottom wall of the water replenishing tank is in a slope structure, and the bottom sewage outlet of the water replenishing tank is located at the lowest point of the slope.

[0028] Preferably, a sealing rubber sleeve is further arranged at the docking position of the hard pipe and the nozzle, the sealing rubber sleeve has an upper port and a lower port, and the sealing rubber sleeve is fixed on the hard pipe nozzle through the lower port.

[0029] Preferably, the driving assembly further includes a rotating rod, one end of the rotating rod is installed on a support or a tank body through a hinge shaft (this end is called the proximal end), the other end of the rotating rod is a free end (this end is called the distal end), the nozzle is fixed on the free end of the rotating rod, and the rotating rod rotates around the shaft to drive the nozzle to ascend or descend;

[0030] The fixed end of the electric push rod or the cylinder is installed on another support or tank body, the moving end of the electric push rod or the cylinder is installed on the rotating rod, and the electric push rod or the cylinder drives the rotating rod to rotate to make the lower nozzle of the nozzle dock with or disconnect from the hard pipe nozzle.

[0031] Preferably, the nozzle further has a straight introduction section between the upper nozzle and the lower nozzle, a longitudinal limiting piece is further arranged on the introduction section, and the longitudinal limiting piece and the introduction section are fixed to form a fixed combination.

[0032] A circular pressing disc is further arranged on the introduction section adjacent to the lower nozzle of the nozzle.

[0033] The driving assembly further includes a slot cover plate, and the slot cover plate is fixed on the slot of the water replenishing tank.

[0034] A limit seat is also provided on the notch cover plate;

[0035] The notch cover plate and the limiting seat are respectively provided with limiting holes that match the cross-sectional shape of the fixed assembly. The limiting holes of the notch cover plate and the limiting seat are aligned with each other at the top and bottom. The introduction section of the nozzle is placed in the limiting holes of the notch cover plate and the limiting seat at the same time. The fixed assembly slides longitudinally in the limiting holes. The limiting holes prevent the nozzle from twisting during the longitudinal movement.

[0036] The fixed end of the electric push rod or the cylinder is mounted on the slot cover, and the movable end of the electric push rod or the cylinder is mounted on the longitudinal limit member;

[0037] The electric push rod drives the nozzle to move up and down longitudinally so that the lower pipe opening and the hard pipe opening are connected or disconnected, and in the connected state, the pressure plate and the upper end surface of the sealing rubber sleeve form a fitting seal.

[0038] Preferably, the longitudinal limit member is a groove-shaped structure formed by bending a metal plate, and the groove walls on both sides of the longitudinal limit member are welded and fixed to the introduction section to form a welded assembly, and the moving end of the electric push rod or cylinder is installed on the bottom wall of the longitudinal limit member.

[0039] Preferably, the sealing rubber sleeve has an annular groove.

[0040] Preferably, a filter screen is further provided in the water communication pipe, and the filter screen prevents particles in the water from entering the replenishment tank from the tank through the communication pipe.

[0041] Preferably, a partition plate is further provided, which divides the tank cavity of the water supply tank into two in a transverse manner, and the automatic water supply device for maintaining water stability to supply water to the water supply tank and maintain the water level stable is located in different cavities from the water channel connecting pipe. The cavity where the automatic water supply device for maintaining water stability is located is the clean water cavity, and the cavity where the water channel connecting pipe and the bottom sewage outlet of the water supply tank are located is the sewage cavity; the upper edge of the partition plate exceeds the normal working liquid level of the water supply tank, and the lower edge of the partition plate has a bottom gap with the bottom wall of the water supply tank, and the clean water cavity and the sewage cavity are connected by water via the bottom gap.

[0042] A water replenishing machine includes a water replenishing tank and an automatic water replenishing device for maintaining water level stability. The machine is characterized in that it also includes the above-mentioned pipeline dredging device and a control system. The control system controls the water pump or electric valve and the electric push rod of the drive component to operate according to a set program.

[0043] Preferably, the remote communication device comprises a camera and a signal processing module, the camera is used to take real-time photos of the water supply tank opening, and the control system and the remote communication device are used for remote monitoring and fault alarm of the pipeline dredging device.

[0044] The present application has the advantages that the garbage incinerator lower water supply tank connecting pipe, the pipeline dredging device and the water supply machine are used to prevent the connecting pipeline from being blocked by using the urban tap water, the factory reusable waste water or the sewage of the water supply tank as the dredging water source and dredging the inside of the connecting pipeline by using the water pressure. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figures 1-5 Fig. 1 is a structural schematic diagram of an embodiment of the prior art garbage incinerator. Figure 1 Fig. 2 is a reduced schematic diagram of the overall structure in the orthographic projection, Figure 2 Fig. 3 is a schematic diagram of the pipeline layout of the ash conveying machine, Figure 3 Fig. 4 is a schematic diagram of the pipeline layout of the slag machine, Figure 4 Fig. 5 is a three-dimensional structure internal perspective view of the water supply tank of the slag machine, Figure 5 Fig. 6 is a structural schematic diagram of the orthographic projection of the water supply tank of the slag machine.

[0046] Figures 6-7 Fig. 7 is a structural schematic diagram of the first embodiment (water supply tank connecting pipe embodiment) of the present application. Wherein Figure 6 Fig. 8 is a three-dimensional structure perspective view, Figure 7 Fig. 9 is a structural schematic diagram of the orthographic projection.

[0047] Figures 8-21 Fig. 10 is a structural schematic diagram of the second embodiment (pipeline dredging device embodiment) of the present application. Wherein Figure 8 Fig. 11 is a schematic diagram of the pipeline layout of the dredging device, Figure 9 Fig. 12 is a schematic diagram of the pipeline layout of the dredging device, Figure 10 Fig. 13 is a three-dimensional structure schematic diagram of different angles, Figure 11 Fig. 14 is a three-dimensional structure schematic diagram of different angles, Figure 12 Fig. 15 is an internal three-dimensional structure schematic diagram of different angles, Figure 13 Fig. 16 is an internal orthographic projection perspective view in different states, wherein Figure 14 Fig. 17 is a structural schematic diagram of the pipe nozzle and the hard pipe opening in the disengaged docking state, Figure 13 Fig. 18 is a structural schematic diagram of the pipe nozzle and the hard pipe opening in the docking state; Figure 14 Fig. 19 is a structural schematic diagram of the components and parts of the driving assembly. Figures 15-21

[0048] Figures 22-23 Fig. 20 is a schematic diagram of the third embodiment (pipeline dredging device embodiment) of the present application, wherein Figure 22 Fig. 21 is a schematic diagram of the pipeline layout of the dredging device, Figure 23 Fig. 22 is a schematic diagram of the water pump. ​

[0049] Figures 24-40 Structure diagram of the fourth embodiment of the application (pipe dredging device embodiment). Among them Figure 24 Structure diagram of the overall structure, Figure 25 Structure diagram of the water tank box assembly, Figure 26 Structure diagram of the water tank leg rack, Figure 27 Structure diagram of the water tank box, Figure 28 Structure diagram of the water tank box inside, Figure 29 And Figure 30 Structure diagram of the drive assembly in different states, among them Figure 29 Structure diagram of the pipe nozzle and the hard pipe port in the docking state, Figure 30 Structure diagram of the pipe nozzle and the hard pipe port in the undocking state; Figure 31 And Figure 32 Another angle of the structure diagram of the drive assembly in different states, among them Figure 31 Structure diagram of the pipe nozzle and the hard pipe port in the docking state, Figure 32 Structure diagram of the pipe nozzle and the hard pipe port in the undocking state; Figures 33-40 Structure diagram of the local structure, Figures 33-35 Structure diagram of the pipe nozzle and the lead-in pipe assembly, Figure 33 Perspective view, Figure 34 Orthographic view, Figure 35 Sectional view of A-A section; Figures 36-39 Structure diagram of the limit seat and the notch cover plate assembly, Figure 37 Structure diagram of the limit seat, Figure 38 Structure diagram of the notch cover plate, Figure 39 Structure diagram of the limit ring, Figure 40 Structure diagram of the receiving groove assembly.

[0050] In the figure:

[0051] 1. Grate, 1.1 Grate grid, 1.2 Grate end slagging port, 1.3A, 1.3B, 1.3C, 1.3D, 1.3E Ash bucket,

[0052] 2, Tapping machine tank, 2.0 Water, 2.01 Tapping machine water tank normal working liquid level (considered as the normal working liquid level of the ash conveying machine tank), 2.1 Tapping machine water tank, 2.1B Leg rack, 2.1C Slope at the bottom of the tank, 2.1D Sleeve through hole, 2.1E Partition plate, 2.1E1 Bottom gap, 2.1F Water tank sewage outlet, 2.1G Water tank overflow port, 2.1H Notch top cover, 2.11 Connecting pipe, 2.11A Water tank connecting pipe inlet, 2.111 Hard pipe, 2.111A Hard pipe port;

[0053] 2.2 automatic water replenishing device, 2.21 water replenishing pipe, 2.22 electric valve, 2.23 electronic liquid level meter, 2.3 automatic water replenishing device for maintaining water level (water replenishing tank for slagging machine), 2.31 water replenishing pipe, 2.311 water replenishing port, 2.32 hand valve, 2.33 float ball, 2.34 connecting seat (double internal tooth straight through), 2.4 slag falling pipe, 2.5 emergency sewage pipe for slagging machine;

[0054] 3 ash conveying machine tank, 3.0 water, 3.1 water replenishing tank for ash conveying machine, 3.11 connecting pipe, 3.2 emergency sewage pipe for ash conveying machine, 3.3 automatic water replenishing device for maintaining water level (water replenishing tank for ash conveying machine), 3.31 water replenishing pipe, 3.32 hand valve, 3.33 float ball, 3.4A ash falling port (ash falling cavity) of ash conveying machine, 3.5A manhole, 3.4A2 normal working liquid level of ash conveying machine tank;

[0055] 4 wall,

[0056] 5 slag pool,

[0057] 6 sewage pipe, 6A pump inlet pipe, 6A1 sewage pipe inlet (i.e. sewage outlet 2.1F of water replenishing tank), 6B pump outlet pipe, 6B1 sewage pipe outlet, 6C emergency sewage pipe, 6C1 emergency sewage outlet, 6D safety overflow pipe, 6D1 safety overflow pipe inlet (i.e. overflow port 2.1G of water replenishing tank),

[0058] 7 drainage pump, 7.1 pump inlet, 7.2 pump outlet,

[0059] 8.1 rotating rod (rotating arm or rotating frame), 8.1A, 8.1B groove-shaped member, 8.1A1 proximal end (one end close to hinge), 8.1A2 distal end, 8.1A21 mounting hole, 8.2 electric push rod, 8.3A, 8.3B mounting support of electric push rod, 8.42 first bracket of slot, 8.42A second bracket, 8.5A hinge, 8.7 sealing rubber sleeve, 8.7A annular groove, 8.71 upper port, 8.72 lower port, 8.8 nozzle, 8.81 upper pipe port, 8.82 lower pipe port, 8.83 third pipe port, 8.8A introduction section, 8.8A1 longitudinal limiting member (groove-shaped structure) 8.8A2 pressure plate; 8.9 transition hose;

[0060] 9.1 limiting seat, 9.1A limiting hole, 9.2 cover plate of slot, 9.2A limiting hole, 9.2B1, 9.2B2 mounting hole of water level monitoring device, 9.2C bolt mounting hole, 9.3 limiting ring, 9.3A limiting hole;

[0061] 10 garbage,

[0062] 10.1 ash and slag.

[0063] 11 sleeve,

[0064] 12 travel switch, 12A pull rod,

[0065] 13 Overflow receiving groove, 13.1 Receiving port, 13A Cover plate, 13B Overflow drain pipe;

[0066] 14 Cover plate fixing bolt. DETAILED DESCRIPTION

[0067] Figures 1-5 Structure diagram of an embodiment of the prior art waste incinerator.

[0068] Figure 1 As shown, the garbage 12 is continuously burned on the grate 1, and the grate continuously moves to push the garbage forward step by step, and the ash after burning finally reaches the end of the grate and falls into the slag outlet 1.2 and falls into the slag tapping machine tank 2. The reduction rate of garbage burning can reach two-thirds, so the amount of slag (ash) falling into the slag tapping machine tank 2 is huge. At the same time, during the movement and rolling of the garbage on the grate 1, small garbage or small ash after burning on the grate falls through the grate (primary air continuously flows from the bottom of the grate to the upper part of the hearth through the grate hole) and falls into the tank of the ash conveying machine through the ash bucket. The water is stored in the slag tapping machine tank 2 and the ash conveying machine tank 3. The water in the tank can not only realize water sealing between the hearth and the outside, but also can cool the falling slag. The conveying device in the slag tapping machine tank and the ash conveying machine tank is responsible for conveying the tank to the slag pool.

[0069] Since the ash falls into the water and absorbs part of the water, and then is transported to the slag pool and takes away part of the water, causing the water in the slag tapping machine tank or the ash conveying machine tank to continuously lose, therefore, a water supplement tank 2.1 needs to be set beside the slag tapping machine tank 2, and a water supplement tank 3.1 needs to be set beside the ash conveying machine tank 3, and a stable automatic water supplement device 2.3, 3.3 (usually a floating ball valve automatic water supplement device) is set respectively. The water supplement tank 2.1 is connected with the slag tapping machine tank 2 through the communication pipe 2.11 to form a water connection; the water supplement tank 3.1 is connected with the ash conveying machine tank 3 through the communication pipe 3.11 to form a water connection; the stable automatic water supplement device is used to supplement water to the water supplement tank to maintain the stability of the water level in the slag tapping machine tank or the ash conveying machine tank. However, since part of the sludge and floating ash in the tank will enter the water supplement tank through the communication pipe (such as 2.11, 3.11), and during the daily operation, the water supplement tank cannot be emptied and cleaned. Therefore, sludge will continuously accumulate at the bottom of the water supplement tank, and the liquid level of the water supplement tank will also continuously float and accumulate floating ash, which will seriously block the communication pipe and cause the surface of the water level monitoring element (such as a floating ball or an electronic liquid level meter) to be scaled, thereby affecting the normal work of the stable automatic water supplement device 2.3, 3.3, and seriously affecting the normal operation of the waste incineration system.

[0070] Now, the method of manual salvage is usually used to remove the floating ash on the liquid surface of the water supplement tank, but the sludge at the bottom of the tank cannot be treated.

[0071] Figures 6-7 The figure shows that in this example, the hard pipe 2.111 is connected to the pipe opening of the communicating pipe 2.11 on the side of the water supplement tank 2.1, and the hard pipe 2.111 is an extension of the communicating pipe 2.11.

[0072] The figure shows that the hard pipe opening 2.111A is below the normal working liquid level 2.01 of the water supplement tank and the hard pipe opening 2.111A faces upward.

[0073] The figure shows that the hard pipe 2.111 has a bend structure, the hard pipe 2.111 has two pipe openings, one pipe opening of the hard pipe 2.111 is at a low position and is fixedly connected to the pipe opening of the communicating pipe 2.11 to form a sealed connection, and the other pipe opening (i.e. the hard pipe opening 2.111A) of the hard pipe 2.111 is at a high position and is below the normal working liquid level 2.01 of the water supplement tank and the pipe opening faces upward.

[0074] The present application indicates that in the prior art, the tank of the water supplement tank and the communicating pipe are both made of steel. In order to facilitate the connection and fixation with the communicating pipe 2.11, the hard pipe 2.111 is preferably made of steel and is fixedly welded to the pipe opening of the communicating pipe 2.11.

[0075] Figures 8-21 The figure shows that in this example, the pipe dredging device includes a communicating pipe 2.11 connected between the tank of the slag remover and the water supplement tank 2.1, a hard pipe 2.111 is further connected to the pipe opening of the communicating pipe 2.11 on the side of the water supplement tank 2.1, the hard pipe 2.111 is an extension of the communicating pipe 2.11, and the hard pipe opening 2.111A is below the normal working liquid level 2.01 of the water supplement tank and the pipe opening faces upward. In general, a stabilizing automatic water supplement device 2.3 is further provided to supplement water to the water supplement tank 2.1 to maintain the water level stable, and the stabilizing automatic water supplement device 2.3 is usually a floating ball type water supplement device.

[0076] It further includes a dredging water source.

[0077] Figure 20 The figure shows that a nozzle 8.8 is further provided, the nozzle 8.8 has an upper pipe opening 8.81 and a lower pipe opening 8.82, and the dredging water source is connected to the upper pipe opening 8.81 of the nozzle 8.8. The figure shows that the nozzle 8.8 has a three-way structure, and the third pipe opening 8.83 is closed.

[0078] In this example, the dredging water source is controlled by the dredging automatic water replenishing device 2.2, which is controlled to open or close by the electric valve 2.22, and the water source of the dredging automatic water replenishing device 2.2 comes from the municipal water pipe network or the factory reusable wastewater. Through the water replenishing of the dredging automatic water replenishing device 2.2, the internal part of the communicating pipe 2.11 and the hard pipe 2.111 is automatically washed and dredged by using the water replenishing pressure, so as to realize the automatic washing function of the communicating pipe.

[0079] The pipeline dredging device further comprises a driving assembly.

[0080] As shown in the figure, the driving assembly comprises an electric push rod 8.2.

[0081] Further comprising a notched first support 8.42, both ends of which are fixed on the two side walls of the water replenishing tank. The notched first support 8.42 is made of a metal plate and is bent, and is installed and fixed on the notch of the water replenishing tank.

[0082] Further comprising a rotating rod 8.1, and further comprising a second support 8.42A, both ends of which are fixed on the two side walls of the water replenishing tank. One end of the rotating rod 8.1 is installed on the second support 8.42A through a hinge shaft (in this example, the hinge 8.5A hinge shaft) (this end of the rotating rod 8.1 is called the proximal end), and the other end of the rotating rod 8.1 is a free end (this end is called the distal end).

[0083] Figure 15 、 Figure 16 、 Figure 18 As shown, the rotating rod 8.1 is a T-shaped structure welded by 8.1A and 8.1B, 8.1A and 8.1B are groove-shaped members made of sheet metal by bending, 8.1B is welded and fixed with the proximal end of 8.1A, and 8.1B of the rotating rod 8.1 is installed on the second support 8.42A through the hinge 8.5A.

[0084] Figures 11-14 As shown, the bottom wall 2.1C of the water replenishing tank is a slope structure and the bottom drain 2.1F is located at the lowest point of the slope, which is to make the drain of the water replenishing tank more thorough. Figure 13 、 Figure 14 As shown in the middle, as a preferred, in this example, the bottom wall 2.1C has a pit at the lowest point, and the bottom drain 2.1F is located at the bottom wall of the pit.

[0085] Figures 15-18As shown, in this embodiment, a partition plate 2.1E is also provided as preferred, which divides the tank cavity of the water replenishing tank into two parts horizontally, and the waterway communication pipeline of the automatic water replenishing device 2.3 is located in different cavities. The cavity where the first water replenishing device 2.3 is located is a clean water cavity, and the cavity where the waterway communication pipeline and the bottom sewage outlet 2.1F are located is a sewage cavity. The upper edge of the partition plate 2.1E exceeds the normal working liquid level 2.01 of the water replenishing tank, and the lower edge of the partition plate 2.1E has a bottom gap 2.1E1 with the bottom wall of the water replenishing tank. The clean water cavity and the sewage cavity are communicated through the bottom gap 2.1E1. The function of the partition plate 2.1E is to confine the liquid surface scum in the sewage cavity and prevent it from freely spreading to the clean water cavity, thereby further ensuring the cleanliness of the water quality in the clean water cavity.

[0086] Figures 15-18 As shown, in this embodiment, the second bracket 8.42A and the partition plate 2.1E are integrally formed by sheet metal processing as preferred.

[0087] The nozzle 8.8 is welded and fixed in the mounting hole 8.1A21 of the rotating rod 8.1, and the rotating rod 8.1 rotates around the shaft to drive the nozzle 8.8 to rise or fall;

[0088] Figure 15 As shown, the fixed end of the electric push rod 8.2 is mounted on the first bracket 8.42, the moving end of the electric push rod 8.2 is mounted on the rotating rod 8.1, and the electric push rod 8.2 drives the rotating rod 8.1 to rotate to make the nozzle 8.8 rise or fall, so that the lower nozzle 8.82 and the hard pipe nozzle 2.111A are connected or disconnected.

[0089] Figure 8 、 Figure 10 、 Figure 12 As shown, a transition hose 8.9 is also provided at the front end of the nozzle 8.8, which is an intermediate connecting pipe for connecting the nozzle 8.8 and the water source. The driving assembly drives the nozzle 8.8 to rise or fall to make the lower nozzle 8.82 and the hard pipe nozzle 2.111A connected or disconnected. By utilizing the bendable and deformable characteristics of the transition hose 8.9, when the water replenishing pipe of the dredging automatic water replenishing device 2.2 is connected to the nozzle 8.8, the rotating rod 8.1 can still be moved.

[0090] Figure 13 、 Figure 14 、 Figure 21 As shown, in this embodiment, a sealing rubber sleeve 8.7 is also provided at the nozzle 2.111A of the hard pipe, which has an upper port 8.71 and a lower port 8.72, and the sealing rubber sleeve 8.7 is fixed on the hard pipe nozzle 2.111A through the lower port 8.72.

[0091] The sealing sleeve 8.7 plays a buffering role when the nozzle 8.8 is connected to the hard pipe 2.111, reducing the impact and reducing the leakage at the connection.

[0092] Figure 13 、 Figure 14 、 Figure 21 As shown in the figure, the sealing sleeve 8.7 has an annular groove 8.7A. The annular groove 8.7A is beneficial to enhance the flexibility of the sealing sleeve 8.7 in the longitudinal direction (i.e. the pipeline direction).

[0093] Figure 10 、 Figure 12 As shown, as a preferred, a sleeve 11 is also provided. A sleeve passing hole 2.1D is provided on the tank of the water replenishing tank, and the sleeve 11 is inserted into the sleeve passing hole 2.1D and welded and fixed, and the transition hose 8.9 enters the tank of the water replenishing tank through the lumen of the sleeve 11 and is connected to the upper pipe opening 8.81 of the nozzle 8.8, thereby introducing the dredging water source into the dredging pipeline.

[0094] Figure 15 、 16 As shown in figure 19, as a preferred, a travel switch 12 and a pull rod 12A are also provided in this example, and the travel switch 12 is used to monitor the position of the rotating rod 8.1 after rotation.

[0095] In this example, the lower pipe opening 8.82 of the nozzle 8.8 is connected or disconnected with the hard pipe opening 2.111A by rotation of the rotating rod 8.1.

[0096] When pipeline dredging is required, the driving assembly drives the rotating rod 8.1 to rotate and lowers the nozzle 8.8 so that the lower pipe opening 8.82 of the nozzle 8.8 is connected to the hard pipe opening 2.111A, at this time, the 8.1A bottom wall of the rotating rod 8.1 is in close contact with the upper end surface of the sealing sleeve 8.7, thereby forming a sealing, and thus the communication pipe 2.11, the hard pipe 2.111 and the nozzle 8.8 are sequentially connected to form a waterway communication pipeline for dredging. In the connected state, the electric valve 2.22 of the automatic water replenishing device 2.2 is opened, and the municipal water pipe network or the factory's reusable waste water is introduced into the nozzle 8.8 as the dredging water source, and finally flows into the tank 2 of the tundish through the waterway communication pipeline (i.e. the dredging pipeline), realizing dredging and desilting of the waterway communication pipeline and simultaneously replenishing water for the tundish tank. In the state that the 8.1A bottom wall of the rotating rod 8.1 is in close contact with the upper end surface of the sealing sleeve 8.7, the water of the dredging water source is confined in the waterway communication pipeline.

[0097] When the pipe dredging is completed, the electric valve 2.22 of the dredging automatic water supplement device is closed, the dredging water source stops flowing; then the drive assembly drives the pipe nozzle 8.8 to rise so that the lower pipe nozzle 8.82 is disconnected from the hard pipe nozzle 2.111A. In this way, the connecting pipe 2.11 and the hard pipe 2.111 are sequentially connected to form a water connection pipe for connecting the water supplement tank and the water connection pipe between the tank and the tank of the slag machine.

[0098] Figure 8 As shown, in this example, in order to dredge the tank bottom of the water supplement tank 2.1 and prevent the hard pipe nozzle 2.111A from being blocked by accumulated sludge at the bottom of the tank cavity, a water pump dredging device is provided, which includes a water pump 7 and a dredging pipe. The inlet 7.1 of the water pump 7 is connected to the bottom dredging port 2.1F (see Figure 11 ) of the water supplement tank 2.1 through the dredging pipe 6A, and the outlet 7.2 of the water pump 7 is connected to the tank 2 of the slag machine through the pipe 6B.

[0099] It should be noted that, in this example, the water pump dredging device should be used to dredge the water supplement tank during the pipe dredging process (i.e., when the upper end of the sealing rubber sleeve 8.7 is sealed with the bottom wall of the rotating rod 8.1), otherwise, during the dredging process, the water in the tank of the slag machine will flow back into the water supplement tank due to the decrease of the water level in the water supplement tank; and, during the use of the water pump dredging device to dredge the water supplement tank, the water supplement stabilizing automatic water supplement device 2.3 will continue to open the water supplement, which is beneficial to further cleaning the tank cavity of the water supplement tank.

[0100] In this example, when it is necessary to dredge the tank bottom of the water supplement tank 2.1, the pipe should be dredged first, and then the water pump 7 is started to dredge after the bottom wall 8.1A of the rotating rod 8.1 is sealed with the upper end surface of the sealing rubber sleeve 8.7. The operation time of the water pump 7 can be set as needed, or it can be controlled by a water level monitoring device, and the water pump can be automatically stopped when the water supplement tank is empty. During the pipe dredging process, the drive assembly should be started to disconnect the pipe nozzle 8.8 from the hard pipe nozzle 2.111A after the water pump is stopped and the water level in the water supplement tank 2.1 returns to the normal working water level 2.01, otherwise, the water in the tank of the slag machine will flow back into the water supplement tank through the water connection pipe.

[0101] Figure 13 、 14 As shown in the middle, in this example, the inclined structure of the bottom wall 2.1C of the water supplement tank can be used to set the water pump 7 at the lower side of the tank body of the water supplement tank 2.1, which can make the structure of the equipment more compact.

[0102] As preferred, in this case, a filter screen is also built in at the pipe opening 2.111A of the hard pipe, which prevents sand particles from entering the replenishing tank through the communicating pipe from the tank.

[0103] Figures 22-23 The schematic diagram of the third embodiment of the present application is shown in the figure. Figure 22 As shown in the pipeline dredging arrangement diagram, in this case, a water pump and sewage pipe are also provided, the inlet 7.1 of the water pump 7 is connected to the bottom sewage outlet 2.1F of the replenishing tank 2.1 through the sewage pipe 6A. Different from the second embodiment, in this case, the outlet 7.2 of the water pump is connected to the upper pipe opening 8.81 of the nozzle 8.8 through a pipe.

[0104] When pipeline dredging is needed, the water pump 7 is started, and when the water pump 7 is running, the sludge and sewage at the bottom of the replenishing tank are discharged into the tank of the slag extractor through the waterway communicating pipe, and the inside of the waterway communicating pipe is automatically washed by the pressure of the water to dredge it, so that the sludge and sewage at the bottom of the replenishing tank are discharged and dredged, and the pipeline of the communicating pipe is dredged at the same time.

[0105] Different from the second embodiment, in this case, the water source for dredging is the sewage of the replenishing tank itself, and the water pump and sewage device controls the dredging of the pipeline, and the sludge and sewage at the bottom of the replenishing tank are discharged into the tank of the slag extractor through the waterway communicating pipe (i.e. the dredging pipe), which has the dual functions of sewage discharge and dredging. In the second embodiment, the water source for dredging is the city water pipe network or the reusable waste water in the factory, and the dredging automatic replenishing device 2.2 controls the dredging of the pipeline, and the water pump and sewage device only discharges the sludge at the bottom of the replenishing tank.

[0106] It is pointed out in the present application that a check valve needs to be provided on the sewage pipe of the water pump and sewage device, which prevents the water from flowing into the replenishing tank from the tank through the sewage pipe in the reverse direction.

[0107] When pipeline dredging is needed, the driving assembly drives the rotating rod 8.1 to rotate to make the nozzle 8.8 descend to make the lower pipe opening 8.82 of the nozzle 8.8 dock with the pipe opening 2.111A of the hard pipe, in the docked state, the water pump 7 of the water pump and sewage device is started, and the sludge and sewage at the bottom of the replenishing tank are introduced into the nozzle 8.8 as the water source for dredging and finally flow into the tank 2 of the slag extractor through the waterway communicating pipe (i.e. the dredging pipe).

[0108] When the pipeline dredging is completed, the water pump 7 is closed, and then when the water level of the replenishing tank 2.1 returns to the normal working water level 2.01, the driving assembly is started to make the nozzle 8.8 and the pipe opening 2.111A of the hard pipe undock. Thus, the communicating pipe 2.11 and the hard pipe 2.111 are connected in sequence to form the waterway communicating pipe for connecting the replenishing tank and the tank of the slag extractor.

[0109] Figures 24-40 A schematic diagram of a local structure of the fourth embodiment of the present application. Figures 33-35 As shown in the figure, unlike the third embodiment, in this embodiment, the nozzle 8.8 also has a straight introduction section 8.8A, and a longitudinal limiting member 8.8A1 is arranged on the introduction section 8.8A, and the longitudinal limiting member 8.8A1 is fixedly combined with the introduction section 8.8A.

[0110] Figures 33-35 As shown in the figure, a circular pressing disc 8.8A2 is arranged on the introduction section 8.8A adjacent to the lower pipe opening 8.82 of the nozzle, and the pressing disc 8.8A2 is welded and fixed on the introduction section 8.8A, and the outer diameter of the pressing disc 8.8A2 should be larger than the outer diameter of the upper port 8.71 of the sealing rubber sleeve 8.7 after the sealing rubber sleeve 8.7 is compressed.

[0111] The driving assembly further comprises a slot cover plate 9.2, which is fixed on the slot of the water replenishing tank by bolts 14; a limiting seat 9.1 is arranged on the slot cover plate, and the limiting seat 9.1 can be fixed on the slot cover plate 9.2 by welding; the slot cover plate 9.2 and the limiting seat 9.1 are respectively provided with limiting holes 9.2A and 9.1A matching the cross-sectional shape of the fixed combination body, the limiting holes 9.1A and 9.2A are aligned with each other, the introduction section 8.8A of the nozzle 8.8 is simultaneously arranged in the limiting holes 9.1A and 9.2A, the introduction section 8.8A longitudinally slides in the limiting holes 9.1A and 9.2A, and the cooperation of the limiting holes 9.1A and 9.2A with the limiting member 8.8A1 prevents the nozzle from being twisted during longitudinal movement.

[0112] Figure 36 、 39 As shown in the figure, as a preferred embodiment, limiting rings 9.3 are respectively arranged on the limiting seat 9.1 and the slot cover plate 9.2 at the limiting holes 9.1A and 9.2A, and the limiting rings 9.3 are provided with limiting holes 9.3A, which are respectively aligned with the limiting holes 9.1A and 9.2A. The limiting rings 9.3 can be made of wear-resistant materials, which can enhance the wear resistance while playing a guiding role. The limiting rings 9.3 can be fixed by welding or bolts.

[0113] The fixed end of the electric push rod 8.2 is fixed on the slot cover plate 9.2 by an electric push rod mounting support 8.3B, and the moving end of the electric push rod is fixed on the longitudinal limiting member 8.8A1 by an electric push rod mounting support 8.3A;

[0114] The electric push rod 8.2 drives the nozzle 8.8 to move longitudinally (longitudinally, i.e. along the central pipeline direction of the introduction section 8.8A) upward and downward, so that the lower pipe opening 8.82 is connected or disconnected with the hard pipe port 2.111A, and the pressing disc 8.8A2 is in sealing contact with the upper end surface of the sealing rubber sleeve 8.7 in the state that the lower pipe opening 8.82 is connected with the hard pipe port 2.111A.

[0115] Figure 38 As shown, in this example, water level monitoring device mounting holes 9.2B1, 9.2B2 are also arranged on the notch cover plate 9.2, and the water level in the water replenishing tank is monitored by the water level monitoring device. The real-time water level in the water replenishing tank is monitored, so that automatic monitoring and alarm of the low water level and high water level in the water replenishing tank are realized.

[0116] Figure 24 、 25 As shown, in this example, as preferred, a safety overflow port 2.1G is also arranged on the water replenishing tank 2.1. A receiving tank 13 is also arranged, and a receiving port 13.1 of the receiving tank 13 is directly connected to the safety overflow port 2.1G. When the water level in the water replenishing tank exceeds the safety warning level, the water will flow out of the safety overflow port 2.1G and flow into the receiving tank 13 and then be collected and discharged.

[0117] As preferred, in this example, the longitudinal limiting member 8.8A1 is a groove-shaped structure formed by bending a metal plate, and the two side walls of the longitudinal limiting member 8.8A1 are welded and fixed on the lead-in section 8.8A to form a welded assembly. The moving end of the electric push rod is installed on the bottom wall of the longitudinal limiting member 8.8A1 through the electric push rod mounting support 8.3A.

[0118] In this example, the lower pipe port 8.82 of the nozzle is connected to or disconnected from the pipe port 2.111A of the hard pipe through up-down longitudinal movement.

[0119] The same as the third embodiment, in this example, the water for dredging is derived from the sewage in the water replenishing tank, and the dredging of the pipeline is controlled by the sewage pump device. The sludge and sewage at the bottom of the water replenishing tank are pumped and discharged to the box tank of the slag machine through the waterway communication pipeline (i.e., the dredging pipeline), so as to have the dual effects of sewage discharge and dredging.

[0120] As indicated in the above embodiments, the time when the electric valve 2.22 is opened or the time when the water pump 7 operates should be set in advance in the system. The operation control of the water pump 7 can also be controlled by the water level monitoring device, and when the water replenishing tank is emptied, the water pump 7 is closed by the system.

[0121] A water replenishing machine, comprising a water replenishing tank, a water level stabilizing automatic water replenishing device for replenishing water to the water replenishing tank to maintain the water level stable, characterized in that the water replenishing machine further comprises the above-mentioned pipeline dredging device and a control system, and the control system controls the water pump or the electric valve and the electric push rod of the driving assembly to operate according to a set program.

[0122] Preferably, the remote communication device comprises a camera and a signal processing module, the camera is used to take real-time photos of the water supply tank opening, and the control system and the remote communication device are used to remotely monitor and alarm the pipeline dredging device.

Claims

1. A connecting pipe for a water supply tank of a waste incinerator, comprising a connecting pipe connected between a box tank and a water supply tank, characterized in that, The pipe mouth of the communicating pipe on one side of the water supplement tank is also fixed with a hard pipe, which is an extension pipe of the communicating pipe, and the pipe mouth of the hard pipe is below the normal working liquid level of the water supplement tank.

2. The under-grate water supply tank communicating pipe for a waste incinerator according to claim 1, wherein The hard pipe has an elbow structure, and has two pipe mouths, one of which is at a low position and is in sealed connection with the pipe mouth of the communicating pipe, and the other of which is at a high position and is below the normal working liquid level of the water supplement tank and has an upward pipe mouth.

3. A pipe unclogging device comprising a communication pipe connected between a tank and a water supply tank, characterized by, The pipe mouth of the communicating pipe on one side of the water supplement tank is also fixed with a hard pipe, which is an extension pipe of the communicating pipe, and the pipe mouth of the hard pipe is below the normal working liquid level of the water supplement tank and has an upward pipe mouth; A dredging water source is further included; A nozzle is further provided, which has an upper pipe mouth and a lower pipe mouth, and the dredging water source is connected to the upper pipe mouth of the nozzle; A transition hose is further provided at the front end of the nozzle, which has bendable and deformable properties and is used as an intermediate connecting pipe between the dredging water source and the nozzle; The dredging water source is controlled by a dredging automatic water supplement device or a water pump sewage device. The dredging automatic water supplement device is controlled to be opened or closed by an electric valve, and the water source of the dredging automatic water supplement device comes from a municipal water pipe network or a factory waste water that can be reused, and the dredging automatic water supplement device is used to dredge the water route communicating pipe by supplementing water and using the supplementing water pressure. The water pump sewage device includes a water pump and a sewage pipe, the inlet of the water pump is connected to the sewage outlet at the bottom of the water supplement tank through the sewage pipe, and the outlet of the water pump is connected to the nozzle through a pipe, and when pipeline dredging is needed, the water pump is started to discharge the sludge and sewage at the bottom of the water supplement tank into the tank through the water route communicating pipe, so as to dredge the water route communicating pipe by the pressure of the discharged water. A check valve is arranged on the sewage pipe of the water pump sewage device, which prevents water from flowing from the tank to the water supplement tank through the sewage pipe. A driving assembly is further included, which includes an electric push rod or a pneumatic cylinder, and drives the nozzle to ascend or descend to make the lower pipe mouth of the nozzle in butt joint or disconnection with the pipe mouth of the hard pipe. When pipeline dredging is needed, the driving assembly drives the nozzle to descend to make the lower pipe mouth of the nozzle in butt joint with the pipe mouth of the hard pipe, so that the communicating pipe, the hard pipe and the nozzle are sequentially connected to form a water route communicating pipe for dredging; the electric valve of the dredging automatic water supplement device or the water pump of the water pump sewage device is opened, and the dredging water source flows into the water route communicating pipe through the nozzle and finally enters the tank. When pipeline dredging is completed, the electric valve of the dredging automatic water supplement device or the water pump of the water pump sewage device is closed, and the dredging water source stops flowing; when the water level of the water supplement tank is at the normal working liquid level, the driving assembly drives the nozzle to ascend to make the lower pipe mouth of the nozzle in butt joint with the pipe mouth of the hard pipe, so that the communicating pipe and the hard pipe are sequentially connected to form a water route communicating pipe for connecting the water supplement tank and the tank.

4. A drain device according to claim 3, characterised in that The bottom wall of the water supplement tank is in a slope structure, and the sewage outlet at the bottom of the water supplement tank is at the lowest point of the slope.

5. A drain device according to claim 4, wherein the tube is formed from a material which is flexible and resilient. The butt joint of the hard pipe and the nozzle is also provided with a sealing rubber sleeve, which has an upper port and a lower port, and is fixed on the nozzle port through the lower port.

6. A drain device according to claim 5, wherein The driving assembly further comprises a rotating rod, one end of which is installed on a bracket or a groove through a hinge shaft, and the other end of which is a free end, and the nozzle is fixed on the free end of the rotating rod, and the rotating rod drives the nozzle to rise or fall when rotating around the shaft. The fixed end of the electric push rod or the cylinder is installed on another bracket or groove, and the moving end of the electric push rod or the cylinder is installed on the rotating rod, and the electric push rod or the cylinder drives the rotating rod to rotate to make the lower nozzle port of the nozzle butt joint with or separate from the hard pipe port.

7. The plumbing unclogging device of claim 5, wherein, The upper nozzle port and the lower nozzle port of the nozzle also have a straight introduction section, and a longitudinal limiting piece is arranged on the introduction section, and the longitudinal limiting piece and the introduction section are fixed and combined to form a fixed combination. A circular pressing disc is arranged on the introduction section adjacent to the lower nozzle port of the nozzle. The driving assembly further comprises a slot cover plate, which is installed and fixed on the slot of the water replenishing tank. A limiting seat is arranged on the slot cover plate. The slot cover plate and the limiting seat are respectively provided with limiting holes matched with the cross-sectional shape of the fixed combination, and the limiting holes of the slot cover plate and the limiting seat are aligned above and below each other, the introduction section of the nozzle is simultaneously arranged in the limiting holes of the slot cover plate and the limiting seat, the fixed combination longitudinally slides in the limiting holes, and the limiting holes prevent the nozzle from twisting when moving longitudinally. The fixed end of the electric push rod or the cylinder is installed on the slot cover plate, and the moving end of the electric push rod or the cylinder is installed on the longitudinal limiting piece. The electric push rod drives the nozzle to move longitudinally upward and downward to make the lower nozzle port butt joint with or separate from the hard pipe port, and the pressing disc and the upper end surface of the sealing rubber sleeve form a sealing fit in the butt joint state.

8. A drain device according to claim 7, characterised in that The longitudinal limiting piece is a groove-shaped structure formed by bending a metal plate, and the two side walls of the longitudinal limiting piece are welded and fixed on the introduction section to form a welded combination, and the moving end of the electric push rod or the cylinder is installed on the bottom wall of the longitudinal limiting piece.

9. A drain device according to claim 6, 7 or 8, characterised in that, The sealing rubber sleeve has an annular groove.

10. A drain device according to claim 6, 7 or 8, characterised in that the A filter screen is arranged in the water channel communication pipeline, which prevents particles in the water from entering the replenishing tank through the communication pipeline.

11. A drain device according to claim 6, 7 or 8, characterised in that A partition plate is further arranged, which divides the tank cavity of the water replenishing tank into two parts, and the water level stabilizing automatic water replenishing device for replenishing water in the water replenishing tank and the water channel communication pipeline are located in different cavities, the cavity where the water level stabilizing automatic water replenishing device is located is a clean water cavity, and the cavity where the water channel communication pipeline and the bottom sewage outlet of the water replenishing tank are located is a sewage cavity; the upper edge of the partition plate exceeds the normal working liquid level of the water replenishing tank, and the lower edge of the partition plate has a bottom gap with the bottom wall of the water replenishing tank, and the clean water cavity and the sewage cavity are in water communication through the bottom gap.

12. A water replenishing machine comprising a water replenishing tank, a water level stabilizing automatic water replenishing device for replenishing water to the water replenishing tank to maintain a stable water level, characterized in that, The pipeline dredging device also comprises a control system, which controls the water pump or the electric valve and the electric push rod of the driving assembly to operate according to a set program.

13. The water replenishing machine of claim 12, wherein, The pipeline dredging device also comprises a remote communication device, which comprises a camera and a signal processing module. The camera is used to take real-time photos of the water supply tank opening. The control system and the remote communication device are used to remotely monitor the pipeline dredging device and to give an alarm when a fault occurs.

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