Vacuum water diversion equipment with vacuum keeping function

Abstract

The utility model provides vacuum water diversion equipment with a vacuum keeping function, which belongs to the technical field of vacuum water diversion and comprises a vacuum water diversion controller, an electromagnetic valve, a vacuum distribution pipe, a vacuum tank, an air suction pipe, a pressure switch, a manual valve, a vacuum check valve, a vacuum pump, an exhaust pipe, a working liquid pipe, a gas-water separator, a cavitation protection pipe, a control cabinet and a flanged base. The vacuum tank and the pressure switch achieve vacuum keeping, the vacuum water diversion controller connected through the water diversion branch pipe and the electromagnetic valve control serve as a vacuum branch to complete the water diversion process, and a plurality of branches can be connected in parallel. The vacuum pumping, water diversion, shutdown and other operations can be automatically completed according to preset parameters, the cavitation risk of the water pump can be reduced and the service life of the water pump can be prolonged by ensuring that the water inlet pipeline is always filled with water, and the remote control function is achieved by arranging the PLC and the Internet of Things gateway in the control cabinet.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vacuum water diversion, especially relates to a vacuum water diversion equipment with vacuum keeping function. BACKGROUND

[0002] In the field of water supply, drainage, fire fighting, irrigation, etc., water pump is an indispensable equipment, before starting, the air in the pump body and water inlet pipeline needs to be discharged to form a vacuum, so that water can be introduced into the pump body to realize normal operation.

[0003] The traditional water pump water diversion mode mainly includes manual irrigation and vacuum pump water diversion, the manual irrigation is complicated to operate and low in efficiency, especially when the water pump is installed at a high position or the water inlet pipeline is long, manual irrigation is more difficult, the vacuum pump water diversion is high in efficiency, but needs manual operation and cannot realize automatic control, especially, the two modes cannot keep the vacuum degree of the water inlet pipeline, when the water inlet pipeline is long or the water pump lift is high, the vacuum degree in the water inlet pipeline is prone to decrease, water pump cavitation is caused, and the efficiency and service life of the water pump are affected. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a kind of vacuum water diversion equipment with vacuum keeping function, including vacuum pump, vacuum tank and gas-water separator, vacuum tank is connected with vacuum distribution pipe, vacuum distribution pipe is connected to water pump by vacuum branch line;

[0005] Vacuum tank is communicated with vacuum pump by suction pipe, and pressure switch for controlling the start and stop of vacuum pump is arranged on the suction pipe;

[0006] Vacuum pump is connected to gas-water separator by exhaust pipe, for water-gas separation, exhaust valve is arranged at the top of gas-water separator, and working fluid pipe is connected to vacuum pump at the bottom side, to guide the liquid after gas-water separation into vacuum pump to form water ring.

[0007] Further, the number of vacuum branch line is set to multiple, and the structures of the multiple vacuum branch lines are the same.

[0008] Vacuum branch line includes water diversion branch pipe, vacuum water diversion controller and electromagnetic valve, one end of water diversion branch pipe is connected to vacuum distribution pipe, and the other end is connected to water pump through vacuum water diversion controller, to realize the detection of water diversion state of the water diversion branch pipe.

[0009] Electromagnetic valve is arranged on water diversion branch pipe, to connect or disconnect the water diversion branch pipe.

[0010] Further, vacuum table is arranged at the top of vacuum tank, and blow-off port is arranged at the bottom, vacuum table is used to check the vacuum degree in vacuum tank, and blow-off port is used to discharge the liquid accumulated in vacuum tank.

[0011] Further, the suction pipe is provided with a manual valve and a vacuum check valve, the manual valve is used for closing the vacuum pump, and the vacuum check valve is used for controlling that the gas in the vacuum tank only flows to the vacuum pump.

[0012] Further, the working liquid pipe is provided with an adjusting ball valve, which is used for adjusting the water amount introduced into the vacuum pump.

[0013] Further, the vacuum pump is connected with a cavitation protection pipe.

[0014] Further, the vacuum tank is provided with a control cabinet, the control cabinet adopts an integrated wall-mounted box body, and is internally provided with a PLC and an Internet gateway, and is connected with signals of each electromagnetic valve and terminal equipment, so that remote control is realized.

[0015] Further, the integrated box body is externally provided with a button for controlling start and stop of the vacuum water diversion equipment.

[0016] Further, the vacuum tank, the vacuum pump and the gas-water separator are all fixed on the upper surface of the flanged base, so that overall transportation is facilitated.

[0017] Further, the number of vacuum pumps is set to be multiple, and the multiple vacuum pumps form a vacuum pump group, and the connection of the multiple vacuum pumps in the vacuum pump group with the vacuum tank and the gas-water separator is the same.

[0018] Compared with the prior art, the beneficial effects of the utility model mainly lie in that:

[0019] 1. The control cabinet is arranged, the equipment can automatically complete vacuumizing, water diversion and shutdown operations according to preset parameters, can be automatically operated without manual intervention, and is high in efficiency and energy saving.

[0020] 2. The equipment is arranged on the flanged base, so that the structure is compact, the volume is small, and transportation, installation and maintenance are facilitated. DRAWINGS EXPLANATION

[0021] Figure 1 It is a structural schematic view of the vacuum water diversion equipment with a vacuum keeping function.

[0022] Among them, 1, vacuum water diversion controller;2, electromagnetic valve;3, vacuum distribution pipe;4, vacuum tank;5, suction pipe;6, pressure switch;7, manual valve;8, vacuum check valve;9, vacuum pump;10, exhaust pipe;11, working liquid pipe;12, gas-water separator;13, cavitation protection pipe;14, control cabinet;15, flanged base. DETAILED DESCRIPTION

[0023] The following will be described in more detail in conjunction with the schematic diagram of the utility model of a vacuum water diversion equipment with vacuum maintaining function, wherein the preferred embodiment of the utility model is indicated, it should be understood that the utility model described herein can be modified by the person skilled in the art, and the advantageous effects of the utility model are still achieved, therefore, the following description should be understood as the extensive knowledge of the person skilled in the art, and not as the limitation of the utility model.

[0024] As Figure 1 Indicated, a new type of vacuum water diversion equipment with vacuum maintaining function, including vacuum water diversion controller 1, electromagnetic valve 2, vacuum distribution pipe 3, vacuum tank 4, suction pipe 5, pressure switch 6, manual valve 7, vacuum check valve 8, vacuum pump 9, exhaust pipe 10, working liquid pipe 11, gas-water separator 12, cavitation protection pipe 13, control cabinet 14, flange base 15.

[0025] Vacuum pump 9, vacuum tank 4 and gas-water separator 12 are fixed on flange base 15 by bolts, so that the equipment is integrated as a whole, facilitating transportation and installation.

[0026] Vacuum tank 4 bottom is provided with a blowdown port for discharging the liquid accumulated in the vacuum tank; the top is provided with a vacuum gauge for directly viewing the vacuum degree in the tank.

[0027] Vacuum distribution pipe 3 is connected with water supply pump through vacuum branch to realize water diversion, which specifically shows that: the vacuum branch includes a water diversion branch pipe connected with vacuum distribution pipe 3, the other end of the water diversion branch pipe is connected with vacuum water diversion controller 1, the vacuum water diversion controller 1 is connected with water supply pump, electromagnetic valve 2 is arranged on the water diversion branch pipe, the vacuum water diversion controller 1 is used to monitor whether the branch pipe is successfully diverted, and the water diversion is successful when the water diversion reaches the vacuum water diversion controller 1. When the water diversion is successful, the electromagnetic valve 2 closes the passage of the branch pipe. The water diversion branch pipe can be provided with multiple ones according to the needs, and works independently, when one of the water diversion branch pipes fails, the water diversion branch pipe is disconnected, and other water diversion branch pipes are used for water diversion work.

[0028] The pressure switch 6 is installed on the suction pipe 5 to control the start and stop of the vacuum pump 9, so that the vacuum degree in the vacuum tank 4 is maintained within the set value range.

[0029] The vacuum pump 9 adopts water ring type vacuum pump, one for use and one for standby, which is compact in structure, stable in work and long in service life, effectively ensuring reliable operation of the equipment; the manual valve 7 and the vacuum check valve 8 are arranged on the suction pipe of the vacuum pump, the manual valve 7 is used to shut off the vacuum pump for maintenance, and the vacuum check valve 8 only allows the gas in the vacuum tank 4 to flow to the vacuum pump, preventing the vacuum pump working liquid and air from flowing back to the vacuum system when the vacuum pump 9 stops running or is accidentally powered off.

[0030] The adjusting ball valve is arranged on the working liquid pipe 11, which can ensure that the water at the bottom of the gas-water separator 12 is smoothly introduced into the water ring of the vacuum pump 9, and avoid that the working liquid is too much to cause the air pumping speed to decrease or even damage the water ring vacuum pump.

[0031] The gas-water separator 12 is used as a liquid storage tank to provide working liquid for the vacuum pump to form a water ring, and separate water entrained in the exhaust gas of the vacuum pump for recycling to avoid resource waste.

[0032] The cavitation protection pipe 13 is used in the working condition with cavitation risk, which can effectively reduce the impact force on the pump blades, ensure the stable operation of the vacuum pump and prolong the service life of the vacuum pump.

[0033] The PLC and the Internet gateway are arranged in the control cabinet 14, and remote and on-site control can be realized; only start-stop buttons are arranged on the cabinet, the process is automatically controlled, and no manual intervention is needed in the middle; the integrated wall-mounted cabinet is fixed on the side of the vacuum tank 4, and the occupied space is effectively reduced.

[0034] Working principle of the utility model:

[0035] Before starting for the first time, about 1 / 3 of clean water is injected into the gas-water separator 12, then the start button of the control cabinet 14 is pressed, the vacuum pump 9 starts to work, the gas is extracted from the vacuum tank 4 and discharged into the gas-water separator 12, the water entrained in the exhaust gas is separated in the gas-water separator 12, and the gas is discharged to the atmosphere through the exhaust valve; with the lapse of time, the pressure in the vacuum tank 4 gradually decreases, the water in the water pump and the water branch gradually fills, when the liquid level reaches the set liquid level of the vacuum water supply controller 1, a signal is sent to the PCL in the control cabinet 14, the electromagnetic valve of the vacuum water supply controller is turned off, the vacuum pump 9 continues to work, the pressure in the vacuum tank 4 continues to decrease, until the lower limit of the set value of the pressure switch 6 is reached, the vacuum pump 9 stops working, and the vacuum tank 4 maintains the set negative pressure; when the vacuum water supply controller 1 detects that the water branch is not filled to the set liquid level, the electromagnetic valve of the water branch is opened, the vacuum degree of the water branch pipeline decreases, the water pump and the water branch are filled with water again, and then the electromagnetic valve is turned off; when the pressure in the vacuum tank 4 decreases to the upper limit of the set pressure of the pressure switch 6, the vacuum pump 9 starts to work, the pressure in the vacuum tank 4 decreases, until the lower limit of the pressure is reached, and the vacuum pump 9 automatically stops working; in this way, the front water branch and the main pump are always filled with water, the water pump cavitation is prevented, and the working efficiency of the main pump is improved.

[0036] The above are only preferred embodiments of the present application, and do not have any limiting effect on the present application. Any person skilled in the art, without departing from the technical scheme of the present application, makes any form of equivalent replacement or modification of the technical scheme and technical content disclosed by the present application, and the variation belongs to the content of the technical scheme of the present application, and still belongs to the protection scope of the present application.

Claims

1. A vacuum water guide device having a vacuum holding function, characterized by, Including vacuum pump, vacuum tank and air-water separator, the vacuum tank is connected with vacuum distribution pipe, the vacuum distribution pipe is connected to water pump through vacuum branch; The vacuum tank is communicated with the vacuum pump through the suction pipe, and a pressure switch for controlling the start and stop of the vacuum pump is arranged on the suction pipe; The vacuum pump is connected with the air-water separator through the exhaust pipe for water-gas separation, the air-water separator is provided with an exhaust valve at the top and is connected with the vacuum pump through a working liquid pipe at the bottom side to guide the liquid after air-water separation into the vacuum pump to form a water ring.

2. The vacuum water guide apparatus having a vacuum holding function according to claim 1, characterized by, The number of vacuum branches is set to multiple, and the structures of multiple vacuum branches are the same; The vacuum branch includes a water supply branch pipe, a vacuum water supply controller and an electromagnetic valve, one end of the water supply branch pipe is connected with the vacuum distribution pipe, and the other end is connected with the water supply pump through the vacuum water supply controller to realize detection of the water supply state of the water supply branch pipe; The electromagnetic valve is arranged on the water supply branch pipe and used for connecting or disconnecting the water supply branch pipe.

3. The vacuum water guide apparatus having a vacuum holding function according to claim 1, characterized by, The vacuum tank is provided with a vacuum gauge at the top and a blowdown port at the bottom, the vacuum gauge is used for checking the vacuum degree in the vacuum tank, and the blowdown port is used for discharging the liquid accumulated in the vacuum tank.

4. The vacuum water guide apparatus having a vacuum maintaining function according to claim 1, characterized by The suction pipe is provided with a hand valve and a vacuum check valve, the hand valve is used for closing the vacuum pump, and the vacuum check valve is used for controlling the gas in the vacuum tank to flow only to the vacuum pump.

5. The vacuum water guide apparatus having a vacuum holding function according to claim 1, characterized by, The working liquid pipe is provided with an adjusting ball valve for adjusting the water amount introduced into the vacuum pump.

6. The vacuum water guide apparatus having a vacuum maintaining function according to claim 1, characterized by The vacuum pump is connected with a cavitation protection pipe.

7. The vacuum water guide apparatus having a vacuum maintaining function according to claim 1, characterized by The vacuum tank is provided with a control cabinet outside, the control cabinet adopts an integrated wall-mounted box body, is provided with a PLC and an Internet gateway inside, is signal-connected with each electromagnetic valve and terminal equipment, and realizes remote control.

8. The vacuum water guide apparatus having a vacuum holding function according to claim 7, characterized by, The integrated box body is externally provided with a button for controlling the start and stop of the vacuum water supply equipment.

9. The vacuum water guide apparatus having a vacuum maintaining function according to claim 1, characterized by, The vacuum tank, the vacuum pump and the air-water separator are all fixed on the upper surface of the flanged base, which is convenient for overall transportation.

10. The vacuum water guide apparatus having a vacuum maintaining function according to claim 1, characterized by The number of vacuum pumps is set to multiple, including a main pump and a standby pump, the main pump and the standby pump form a vacuum pump group, and the connection of multiple vacuum pumps in the vacuum pump group with the vacuum tank and the air-water separator is the same.

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