Tank-pump integrated apparatus with backflushing

Abstract

The application discloses a box-pump integrated equipment with back flushing, which comprises a water tank, a pump house, a control system, a municipal water inlet system connected with the control system, a communication pipe mechanism, a secondary water supply equipment, a cleaning equipment and a water quality monitor; the water tank and the pump house are both modularized without reinforcing bars; the municipal water inlet system comprises a water inlet mechanism of a pressure stabilizing tank and a water inlet mechanism of the water tank located at the water tank; the secondary water supply equipment is located in the pump house and is connected with the water inlet mechanism of the pressure stabilizing tank or the water tank through the communication pipe mechanism, and is connected with a user pipe network and the cleaning equipment; and the cleaning equipment is used for flushing the water tank. According to the application, professional personnel is not needed to enter the water tank for cleaning, the water tank is automatically cleaned by high-pressure water of a high-pressure pipeline, the water tank is automatically cleaned in a programmed mode through the control system, the user pipe network can be ensured to be not stopped, and the defects of long time consumption and harm to personnel body in the manual cleaning mode are overcome, so that the water quality and water demand of residents are ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of water supply equipment, and relates to a water supply tank pump equipment, in particular to a tank pump integrated equipment with backwashing. BACKGROUND

[0002] In a secondary water supply equipment system, tank type water supply equipment is relatively common, which is suitable for small communities with fewer households and low storage requirements. Water tank type water supply equipment is currently the main storage water supply equipment in the secondary water supply equipment system. However, the inner wall of the water tank of the water tank type water supply equipment will inevitably accumulate sludge and various impurities due to long-term use, which can easily cause secondary pollution. Therefore, it is necessary to clean the water tank regularly to ensure that the water quality of the secondary water supply meets the urban drinking water standards.

[0003] Currently, the water tank for secondary water supply in the market mainly relies on professional personnel to clean it regularly. The professional personnel need to enter the water tank to clean it, which is time-consuming and harmful to the health of the personnel. This not only has low efficiency, but also requires a long time of water stop, which seriously affects the daily water demand of residents. In addition, there are also some water tanks on the market that increase spray heads, cleaning agents, and rolling brushes for cleaning. The spray heads are on the top of the water tank, or there are multiple spray heads, and the water pressure cannot meet the requirements of cleaning dirt (the general high-pressure washing pressure in China is about 1.5-2.0 MPa, which has good cleaning effect and economy under such pressure). There are also cleaning agents and water flushing methods, which can produce a large amount of foam and cleaning agent residue, and require a large amount of water for flushing, which is not ideal for actual program control. The actual operation of the rolling brush is more difficult, and the above methods do not systematically solve the problem of automatic cleaning of the water tank. SUMMARY

[0004] The present application aims to provide a tank pump integrated equipment with backwashing by secondary water supply pump pressure, which does not require professional personnel to enter the water tank for cleaning. The water tank is automatically cleaned by high-pressure water from the high-pressure pipeline, and the programmatic automatic cleaning of the water tank is realized through the control system. The user pipe network can be guaranteed without water stop, which overcomes the defects of time-consuming and harm to personnel health in manual cleaning, and ensures the quality and demand of residential water use.

[0005] The technical solution of the present application is as follows:

[0006] The application discloses a tank-pump integrated device with back flushing, which comprises a water tank, a pump house, a control system, a municipal water inlet system connected with the control system, a communication pipe mechanism, a secondary water supply device, a cleaning device and a water quality monitor.

[0007] Further, when the water tank is flushed, the communication pipe mechanism is closed, and the secondary water supply device is only connected with the municipal water inlet system of the pressure tank.

[0008] Further, the cleaning device comprises a normally open stop valve, a pressure pump, a cleaning device pressure sensor, a fifth electric stop valve, a normally open stop valve, a metal hose driving device and a high-pressure metal hose device which are connected in sequence, the metal hose driving device is connected with and drives the high-pressure metal hose device to perform back and forth high-pressure cleaning on the water tank, and the cleaning device pressure sensor, the fifth electric stop valve and the metal hose driving device are connected with the control system respectively.

[0009] Further, the metal hose driving device comprises a motor, a shaft, an outer shell, a mechanical seal, a water inlet upper cover, a threaded rod, a sealing ring and a quick-connection clamp, the shaft is vertically arranged on the motor, the motor can drive the shaft to rotate so as to drive the high-pressure metal hose device to wind on the cylindrical surface of the shaft, the central axis of the shaft is provided with a blind hole, and a hole is connected with the blind hole and the high-pressure metal hose device, and the hole position of the cylindrical surface of the shaft is welded with the end surface of the high-pressure metal hose device as a whole, the water inlet upper cover is connected with the pressure pump and the blind hole of the shaft, the outer shell is arranged between the water inlet upper cover and the motor and is sealed by the sealing ring, the outer shell is in a cylindrical shape, the cylindrical surface is opened to be in a horn shape, and the end surface is connected with the water tank through the quick-connection clamp, the mechanical seal is rotatably sealed between the water inlet upper cover and the motor at both ends of the shaft, and the threaded rod penetrates through the water inlet upper cover and is fastened on the motor.

[0010] Further, the high-pressure metal hose device comprises a high-pressure nozzle, a quick-connection connector and a high-pressure metal hose, the quick-connection connector is connected with the high-pressure nozzle and the high-pressure metal hose, and the high-pressure metal hose and the high-pressure nozzle are fixed by a high-pressure metal hose fixing mechanism and move along the guide rail direction.

[0011] Further, the high-pressure metal hose fixing mechanism comprises a fixing plate, rollers and balls, the fixing plate comprises four fixing plates fixed on the outer wall of the high-pressure metal hose, the rollers are respectively arranged between the upper and lower fixing plates and the upper and lower inner walls of the guide rail, and the balls are embedded on the left and right sides of the upper and lower fixing plates and are in contact with the left and right inner walls of the guide rail.

[0012] Further, the guide rail is fixed on the inner wall of the water tank by a fixing frame, and the guide rail is in the structure of a long pipe with a square cross section with an open bottom.

[0013] Further, the water tank and the pump house each comprise a plurality of module plates which are assembled together by bolts and sealing strips, and no reinforcing bars are arranged in the water tank and the pump house.

[0014] Further, the secondary water supply equipment comprises a pressure stabilizing tank, a water inlet pipeline mechanism, a plurality of water pumps and a water outlet pipeline mechanism which are connected in sequence, the water outlet pipeline mechanism is connected to the cleaning equipment or is connected to the user pipe network through a first electric shut-off valve, the upper side of the pressure stabilizing tank is connected to the water inlet mechanism of the pressure stabilizing tank, the lower side of the pressure stabilizing tank and between the water tank are further connected to the communication pipe mechanism and the water quality monitor, and the first electric shut-off valve, the water pump and the water quality monitor are respectively connected to the control system.

[0015] Further, the communication pipe mechanism comprises a pipeline and a liquid level pressure sensor and a fourth electric shut-off valve arranged on the pipeline, and the liquid level pressure sensor and the fourth electric shut-off valve are respectively connected to the control system.

[0016] Further, the water inlet mechanism of the water tank comprises a pipeline and a second electric shut-off valve and a remote control floating ball valve arranged on the pipeline, and the second electric shut-off valve is connected to the control system.

[0017] The water inlet mechanism of the pressure stabilizing tank is located above the pump house and comprises a pressure stabilizing tank pressure sensor and a third electric shut-off valve, and the pressure stabilizing tank pressure sensor and the third electric shut-off valve are respectively connected to the control system.

[0018] The advantages of the present application are as follows:

[0019] The present application provides a tank-pump integrated equipment for backwashing by secondary water supply water pump pressure accumulation, the water tank is a modularized water tank without reinforcing bars, is designed as a hollow structure and has no reinforcing bars, so that cleaning and maintenance are facilitated; in addition, the tank-pump is integrated, municipal official website segmented switching water supply is reasonably used, water waste is reduced, the high-pressure cleaning equipment does not need professional personnel to enter the inside of the water tank for cleaning, the water tank is automatically cleaned by high-pressure water of a high-pressure pipeline, the control system is used to realize programmed automatic cleaning of the water tank, the user pipe network can be ensured to be not stopped, and the defects of long time consumption and harm to personnel body in manual cleaning are overcome, the quality and demand of resident water are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Elevation view of the tank-pump integrated device with backwash;

[0021] Figure 2 Plan view of the tank-pump integrated device with backwash;

[0022] Figure 3 Structure diagram of the motion guide rail of the high-pressure metal hose;

[0023] Figure 4 Structure diagram of the metal hose driving device;

[0024] 1, water tank, 11, water collecting and discharging pit, 12, electric water discharging valve;

[0025] 2, secondary water supply device, 20, first electric shut-off valve, 21, water outlet pipeline mechanism, 22, water pump, 23, water inlet pipeline mechanism, 24, pressure stabilizing tank, 25, vacuum inhibitor;

[0026] 3, cleaning device, 30, normally open shut-off valve, 31, pressurizing pump, 32, pressure sensor (cleaning device), 33, fifth electric shut-off valve;

[0027] 34, metal hose driving device, 341, motor, 342, shaft, 343, housing, 344, mechanical seal, 345, water inlet upper cover, 346, threaded rod, 347, sealing ring, 348, quick coupling clamp;

[0028] 35, high-pressure metal hose device, 351, high-pressure nozzle, 352, quick plug connector, 353 high-pressure metal hose;

[0029] 36, fixing frame, 37, guide rail;

[0030] 38, high-pressure metal hose fixing mechanism, 381, fixing plate, 382, roller, 383, ball bearing;

[0031] 4, municipal water inlet system, 41, water tank water inlet mechanism, 411, second electric shut-off valve, 412, remote control floating ball valve; 42, pressure stabilizing tank water inlet mechanism, 421, pressure sensor (pressure stabilizing tank), 422, third electric shut-off valve;

[0032] 5, water quality monitor;

[0033] 6, communication pipe mechanism, 61, fourth electric shut-off valve, 62, pressure sensor (liquid level);

[0034] 7, pump house shell, 8, control system. DETAILED DESCRIPTION

[0035] The application will be further described below in conjunction with the drawings and examples.

[0036] The tank-pump integrated device with backflushing of the embodiment comprises a water tank 1, a secondary water supply device 2, a cleaning device 3, a municipal water inlet system 4, a water quality monitor 5, a communication pipe mechanism 6, a pump house shell 7 and a control system 8; the control system 8 is connected with the secondary water supply device 2, the cleaning device 3, the municipal water inlet system 4, the water quality monitor 5 and the communication pipe mechanism 6 respectively.

[0037] The water tank 1 and the pump house shell 7 are both modularized without reinforcing bars, comprising a plurality of module plates which are assembled together by bolts and sealing strips to form the wall structure of the water tank 1 or the pump house shell 7, and there is no reinforcing bar in the water tank 1 or the pump house shell 7, which is convenient for cleaning and maintenance.

[0038] Preferably, the water tank 1 and the pump house shell 7 are made of a plurality of one-time stretch-formed metal module plates (such as round strand type module plates or X-shaped metal mold large module plates described in ZL201521118103.4) which are spliced together.

[0039] The water tank 1 has a water collecting and discharging pit 11 at the bottom, and electric water discharging valves 12 are arranged at both ends of the water collecting and discharging pit 11.

[0040] The top of the water tank 1 is connected with the municipal water inlet system 4, and the municipal water inlet system 4 comprises a water tank water inlet mechanism 41 and a pressure stabilizing tank water inlet mechanism 42.

[0041] The secondary water supply device 2 has a structure as shown in Figure 2 which comprises a water outlet pipeline mechanism 21, a plurality of water pumps 22, a water inlet pipeline mechanism 23, a pressure stabilizing tank 24 and a vacuum inhibitor 25, the secondary water supply device 2 is placed in the pump house shell 7, the water inlets of the secondary water supply device 2 are connected with the water tank 1 and the municipal water inlet system 4 (the pressure stabilizing tank water inlet mechanism 42) respectively, and the outlets of the secondary water supply device 2 are connected with the user pipe network and the cleaning device 3 respectively;

[0042] Specifically, the water outlet of the water pump 22 is connected to the water outlet pipeline mechanism 21, the water outlet pipeline mechanism 21 is provided with the first electric stop valve 20 on one side connected to the user pipe network and connected to the cleaning device 3 on the other side; the water inlet of the water pump 22 is connected to the water inlet pipeline mechanism 23, the water inlet pipeline mechanism 23 is connected to the lower side of the pressure stabilizing tank 24, the upper side of the pressure stabilizing tank 24 is connected to the municipal water inlet system 4; the lower side of the pressure stabilizing tank 24 is connected to the water inlet pipeline mechanism 23 and the communication pipe mechanism 6 respectively, the upper side of the pressure stabilizing tank 24 is connected to the pressure stabilizing tank water inlet mechanism 42; the lower side of the pressure stabilizing tank 24 is connected to the water tank 1 through the communication pipe mechanism 6, and is provided with the water quality monitor 5 and the fourth electric stop valve 61 on the pipeline, and is provided with the pressure sensor (liquid level) 62 on the pipeline on the side close to the water tank 1, when the water tank 1 is cleaned, the fourth electric stop valve 61 of the communication pipe mechanism 6 is closed, the municipal water inlet (the pressure stabilizing tank water inlet mechanism 42) on the upper side of the pressure stabilizing tank 24 is opened, and the water supply is switched from the water tank 1 to the municipal water supply, so that the demand of residents for water is not affected.

[0043] The water tank water inlet mechanism 41 comprises the second electric stop valve 411 and the remote control floating ball valve 412, the remote control floating ball valve 412 controls the municipal official website water inlet to enter the water tank 1 to reach a predetermined water level to be turned on and off, the second electric stop valve 411 is actuated through the control system 8 (for example, when the water level of the water tank 1 reaches the predetermined water level, the remote control floating ball valve 412 does not actuate, the control system 8 receives the feedback of the pressure sensor (liquid level) 62, and the control system 8 controls the second electric stop valve 411 to be closed; in addition, when the water tank is cleaned, the second electric stop valve 411 is turned on and off through the feedback of the water quality monitor 5 and the preset program of the control system 8, and the water tank 1 is cleaned in cooperation with the cleaning device 3);

[0044] The pressure stabilizing tank water inlet mechanism 42 comprises the pressure sensor (pressure stabilizing tank) 421 and the third electric stop valve 422, the pressure sensor (pressure stabilizing tank) 421 feeds back the municipal water inlet pressure, when the municipal water inlet pressure is too low, the control system 8 controls the third electric stop valve 422 to be closed, and the fourth electric stop valve 61 of the communication pipe mechanism 6 is turned on and off according to the actual situation to switch the water supply of the water tank 1; in addition, when the municipal official website stops supplying water and the water in the water tank 1 is used up, the vacuum suppressor 25 also has a protective effect on the pressure stabilizing tank 24 and the municipal official website, timely feedback, the third electric stop valve 422 is closed, and the water pump 22 stops running, so that the pressure stabilizing tank 24 and the municipal official website do not produce negative pressure, and the water pump 22 does not continuously run dry;

[0045] The communication pipe mechanism 6 includes a pressure sensor (liquid level) 62 and a fourth electric cut-off valve 61 provided on the pipe, and a water quality monitor 5. The pressure sensor (liquid level) 62 feeds back the current water level of the water tank 1. The fourth electric cut-off valve 61 controls the water flow between the water tank 1 and the pressure stabilizing tank 24. The water quality monitor 5 mainly monitors and feeds back the water quality of the water tank 1. The control system 8 judges whether the cleaning device 3 needs to be started to clean the water tank 1 according to the feedback of the water quality monitor 5.

[0046] The cleaning device 3 includes a normally open cut-off valve 30, a pressure pump 31, a pressure sensor (cleaning device) 32, a fifth electric cut-off valve 33, a metal hose driving device 34, and a high-pressure metal hose device 35. After the cleaning device 3 is connected to the water outlet pipe mechanism 21, the normally open cut-off valve 30 is first set, then the pressure pump 31 (such as a secondary water supply device with a rated pressure greater than 1.5 MPa, which can not be provided with a pressure pump 31), followed by the pressure sensor (cleaning device) 32, the fifth electric cut-off valve 33, the normally open cut-off valve 30, and then the metal hose driving device 34, which drives the high-pressure metal hose device 35 to perform back-and-forth high-pressure cleaning on the water tank 1, achieving automatic cleaning of the water tank 1.

[0047] The pressure pump 31 is used to re-pressurize the water outlet of the secondary water supply device 2 to achieve the pressure value required for high-pressure cleaning. The pressure sensor (cleaning device) 32 monitors and feeds back the pressure value of the pressure pump 31. The fifth electric cut-off valve 33 controls the water flow between the water outlet pipe mechanism 21 and the water tank 1. The normally open cut-off valve 30 is used for the on-off before and after the pressure pump 31, which is convenient for daily maintenance.

[0048] The metal hose driving device 34 includes a motor 341, a shaft 342, a housing 343, a mechanical seal 344, a water inlet upper cover 345, a threaded rod 346, a sealing ring 347 and a quick coupling clamp 348. The motor 341 is integrally manufactured with the shaft 342. The motor 341 drives the rotation of the shaft 342 to drive the high-pressure metal hose device 35 to wind around the cylindrical surface of the shaft 342. The central axis of the shaft 342 has a blind hole, and a hole is connected to the blind hole and the high-pressure metal hose device 35. The hole position of the cylindrical surface of the shaft 342 is integrally welded with the end face of the high-pressure metal hose device 35. The water inlet upper cover 345 is connected to the blind hole of the shaft 342 and the pressurizing pump 31. The housing 343 is placed between the water inlet upper cover 345 and the motor 341, and is sealed by the sealing ring 347. The housing 343 is in the shape of a cylinder, and the cylindrical surface has an opening in the shape of a horn. The end face has a quick coupling clamp 348 connected to the water tank 1, which is convenient for quick maintenance. The mechanical seal 344 is rotatably sealed between the water inlet upper cover 345 and the motor 341 at both ends of the shaft. The threaded rod 346 passes through the water inlet upper cover 345 and is fastened to the motor 341. The shaft 342, the housing 343 and the water inlet upper cover 345 are all made of stainless steel.

[0049] The high-pressure metal hose device 35 includes a high-pressure nozzle 351, a quick plug connector 352 and a high-pressure metal hose 353. The quick plug connector 352 connects the high-pressure nozzle 351 and the high-pressure metal hose 353, which is convenient for maintenance. The high-pressure nozzle 351 and the high-pressure metal hose 353 are fixed by the high-pressure metal hose fixing mechanism 38 to move along the guide rail 37. The high-pressure nozzle 351, the quick plug connector 352 and the high-pressure metal hose 353 are all made of stainless steel.

[0050] The high-pressure metal hose fixing mechanism 38 includes a fixed plate 381, a roller 382 and a ball 383. The fixed plate 381 fixes the outer wall of the high-pressure metal hose 353 by four plates from top to bottom and left to right. The roller 382 is between the upper and lower fixed plates 381 and the inner wall of the guide rail 37. The ball 383 is embedded in the left and right sides of the fixed plate 381 and contacts the left and right inner walls of the guide rail 37, which reduces friction and makes the high-pressure metal hose device 35 move more smoothly. The fixed plate 381, the roller 382 and the ball 383 are all made of stainless steel.

[0051] The guide rail 37 is in the shape of a square with an open bottom. The guide rail 37 is welded to the water tank 1 by the fixed frame 36 close to the inner wall of the water tank 1. The fixed frame 36 and the guide rail 37 are all made of stainless steel.

[0052] Specifically, the control system 8 collects the feedback signals of the water quality monitor 5, the pressure sensor (cleaning device) 32, the pressure sensor (pressure stabilizing tank) 421, and the pressure sensor (liquid level) 62 to act on the water pump 22, the metal hose driving device 34, the electric drain valve 12, the first electric cut-off valve 20, the pressurizing pump 31, the fifth electric cut-off valve 33, the second electric cut-off valve 411, the third electric cut-off valve 422, and the fourth electric cut-off valve 61, and the sequence or process of the action is as follows:

[0053] Generally, in the peak water consumption period, the water pump 22 is fully opened, the third electric cut-off valve 422 is disconnected, the fourth electric cut-off valve 61 is opened, the first electric cut-off valve 20 is opened, and the second electric cut-off valve 411 is opened. (The water pump 22 is connected to the water tank 1 for water supply, and the municipal official website (water tank water inlet mechanism 41) of the water tank 1 is opened.)

[0054] In the low water consumption period, the water pump 22 is opened (started and stopped according to the pressure limit value of the user official website), the third electric cut-off valve 422 is opened, the fourth electric cut-off valve 61 is disconnected, the first electric cut-off valve 20 is opened, and the second electric cut-off valve 411 is disconnected.

[0055] In the low water consumption period, the water pump 22 is opened (started and stopped according to the pressure limit value of the user official website), the third electric cut-off valve 422 is opened, the fourth electric cut-off valve 61 is disconnected, the first electric cut-off valve 20 is opened, and the second electric cut-off valve 411 is disconnected.

[0056] In the low water consumption period, the water pump 22 is opened (started and stopped according to the pressure limit value of the user official website), the third electric cut-off valve 422 is opened, the fourth electric cut-off valve 61 is disconnected, the first electric cut-off valve 20 is opened, and the second electric cut-off valve 411 is disconnected.

[0057] The above only describes the preferred embodiments of the present application, and does not constitute a limitation on the protection scope of the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A tank-pump integrated apparatus with backflushing, characterized by, The device comprises a water tank, a pump house, a control system, a municipal water inlet system connected with the control system, a communication pipe mechanism, a secondary water supply device, a cleaning device, and a water quality monitor; the water tank and the pump house are both modularized without reinforcing bars, comprising a plurality of module plates which are assembled together by bolts and sealing strips, and there are no reinforcing bars in the water tank and the pump house; the municipal water inlet system comprises a water inlet mechanism of a pressure stabilizing tank and a water inlet mechanism of the water tank located at the water tank; the communication pipe mechanism connects the secondary water supply device and the water tank; the secondary water supply device is located in the pump house and is connected with the water inlet mechanism of the pressure stabilizing tank or the water tank through the communication pipe mechanism, and is connected with a user pipe network and the cleaning device, and the cleaning device flushes the water tank; the water quality monitor is used for detecting the water quality in the water tank; The cleaning device comprises, in sequence, a normally open stop valve, a pressure pump, a cleaning device pressure sensor, a fifth electric stop valve, a normally open stop valve, a metal hose driving device, and a high-pressure metal hose device, the metal hose driving device connects and drives the high-pressure metal hose device to perform back-and-forth high-pressure cleaning on the water tank; the cleaning device pressure sensor, the fifth electric stop valve, and the metal hose driving device are connected with the control system respectively; The metal hose driving device comprises a motor, a shaft, an outer shell, a mechanical seal, a water inlet upper cover, a threaded rod, a sealing ring, and a quick-connection clamp; the shaft is vertically arranged on the motor, the motor can drive the shaft to rotate so as to drive the high-pressure metal hose device to wind on the cylindrical surface of the shaft; the central axis of the shaft is provided with a blind hole, and a hole is connected with the blind hole and the high-pressure metal hose device, and the hole position of the cylindrical surface of the shaft is welded with the end face of the high-pressure metal hose device as a whole; the water inlet upper cover is connected with the pressure pump and the blind hole of the shaft, and the outer shell is placed between the water inlet upper cover and the motor and is sealed by the sealing ring; the outer shell is in a cylindrical shape, and the cylindrical surface is opened to be in a horn shape, and the end face is connected with the water tank by the quick-connection clamp; the mechanical seal is rotatably sealed between the water inlet upper cover and the motor at both ends of the shaft; the threaded rod passes through the water inlet upper cover and is fastened on the motor; The high-pressure metal hose device comprises a high-pressure nozzle, a quick-connection joint, and a high-pressure metal hose, the quick-connection joint connects the high-pressure nozzle and the high-pressure metal hose, and the high-pressure metal hose and the high-pressure nozzle are fixed by a high-pressure metal hose fixing mechanism and move along the guide rail direction; The high-pressure metal hose fixing mechanism comprises a fixed plate, a roller, and a ball, the fixed plate comprises four plates fixed on the outer wall of the high-pressure metal hose in up-down and left-right directions, the roller is arranged between the upper and lower fixed plates and the upper and lower inner walls of the guide rail respectively, and the ball is embedded in the left and right sides of the upper and lower fixed plates and contacts the left and right inner walls of the guide rail.

2. The tank-pump integrated apparatus with back-flushing according to claim 1, wherein, When the water tank is flushed, the communication pipe mechanism is closed, and the secondary water supply device is only connected with the municipal water inlet of the pressure stabilizing tank.

3. The back-flushed tank-pump integrated apparatus of claim 1, wherein, The guide rail is fixed on the inner wall of the water tank by a fixed frame, and the guide rail is in the structure of a long pipe with a square cross section with an opening at the bottom.

4. The back-flushed tank-pump integrated apparatus according to claim 1 or 2, wherein The secondary water supply device comprises a pressure stabilizing tank, a water inlet pipeline mechanism, several water pumps and a water outlet pipeline mechanism connected in sequence, the water outlet pipeline mechanism being connected to the cleaning device or to the user pipeline network through a first electric cut-off valve; the upper side of the pressure stabilizing tank is connected to the pressure stabilizing tank water inlet mechanism, and the lower side of the pressure stabilizing tank and between the pressure stabilizing tank and the water tank are further connected to the communication pipeline mechanism and the water quality monitor.

5. The back-flushed tank-pump integrated apparatus according to claim 1 or 2, wherein The communication pipeline mechanism comprises a pipeline and a liquid level pressure sensor and a fourth electric cut-off valve arranged on the pipeline; the water tank water inlet mechanism comprises a pipeline and a second electric cut-off valve and a remote control floating ball valve arranged on the pipeline; the pressure stabilizing tank water inlet mechanism is located above the pump house and comprises a pressure stabilizing tank pressure sensor and a third electric cut-off valve.

6. The backwashing method using the backwashing tank-pump integrated apparatus according to any one of claims 1 to 5, characterized by, The method comprises: The control system realizes programmed automatic cleaning of the water tank and ensures that the user pipeline network is not stopped from water: During the water use low period: when the water quality monitor feeds back that the water quality is not up to standard, the control system will make an appointment for cleaning of the water tank during the water use low period: the water pump of the secondary water supply device is connected to the pressure stabilizing tank water inlet mechanism for water supply, the water tank water inlet mechanism of the water inlet tank is closed, the metal hose driving device is opened, the pressure pump is opened, the fifth electric cut-off valve is opened, and the electric water drainage valve at the bottom of the water tank is opened; when the water quality monitor feeds back that the water quality is up to standard, the cleaning of the water tank is completed, the water tank water inlet mechanism of the water inlet tank is opened, water is injected into the water tank, and then the electric water drainage valve at the bottom of the water tank is disconnected.

7. The method of claim 6, wherein, The control system collects feedback signals of the water quality monitor, the pressure sensor of the cleaning device, the pressure sensor of the pressure stabilizing tank and the liquid level pressure sensor of the communication pipeline mechanism; During the water use peak period under normal circumstances: the water pump of the secondary water supply device is connected to the water tank for water supply, and the water tank water inlet mechanism of the water inlet tank is opened; During the water use peak period: the water pump of the secondary water supply device is connected to the water tank for water supply, and the water tank water inlet mechanism of the water inlet tank is closed.

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