Remotely-controlled vacuum pump exhaust device and system

Abstract

The utility model belongs to the technical field of water supply, and particularly relates to a remote control vacuum pump exhaust device and system, which comprises a vacuum pump, a vacuum pump control box, a main exhaust pipeline and an electromagnetic valve, the electromagnetic valve is arranged on a main exhaust pipeline, the control end of the electromagnetic valve is connected with the vacuum pump control box, a starting button and a stopping button are arranged on the vacuum pump control box and used for inputting a starting signal and a stopping signal of the vacuum pump, and the output end of the vacuum pump control box is connected with the control end of the electromagnetic valve. Remote starting and stopping of the vacuum pump exhaust device can be achieved, and the starting efficiency of the centrifugal pump is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water supply technical field, concretely relates to a remote control's vacuum pump exhaust device and system. BACKGROUND

[0002] Centrifugal pump transports liquid by centrifugal force, and its working principle is that when the impeller rotates at high speed, liquid is thrown out to form a pressure difference, and the liquid is sucked from the inlet and discharged from the outlet. The vacuum pump removes gas by mechanical or physical means to form a vacuum or negative pressure in a closed space. The centrifugal pump is widely used in water supply field. When the installation position of the centrifugal pump is higher than the liquid source, such as a reservoir or a pool, air may be left in the pump body, which prevents self-suction start. At this time, the vacuum pump needs to be started to remove the gas in the pump shell, to ensure that a vacuum is formed in the pump shell. Then, atmospheric pressure presses the liquid in the water inlet pipe into the pump shell, so that the centrifugal pump can be started.

[0003] In the prior art, many water supply systems use horizontal centrifugal pumps as water supply pumps. However, before starting, the local vacuum pump needs to be exhausted, so the pump opening efficiency is greatly reduced. Moreover, since there are many water supply system pumps, misoperation may cause loss. Therefore, the existing vacuum pump exhaust system needs to be improved to realize remote control and improve the pump opening efficiency. UTILITY MODEL CONTENTS

[0004] The utility model overcomes the deficiencies of the prior art and solves the technical problem of providing a remote control's vacuum pump exhaust device and system to realize remote start of the centrifugal pump start vacuum pump.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a remote control's vacuum pump exhaust device, which comprises a vacuum pump and a vacuum pump control box. The vacuum pump is used for vacuumizing the centrifugal pump shell. It also comprises a main exhaust pipeline and an electromagnetic valve. One end of the main exhaust pipeline is connected with the centrifugal pump, and the other end is connected with the vacuum pump. The electromagnetic valve is arranged on the main exhaust pipeline. The control end of the electromagnetic valve is connected with the vacuum pump control box. The vacuum pump control box is provided with a start button and a stop button for inputting electromagnetic valve opening signal and closing signal. The output end of the vacuum pump control box is connected with the control end of the electromagnetic valve.

[0006] The remote control's vacuum pump exhaust device also comprises a standby pipeline connected with the main exhaust pipeline in parallel. The standby pipeline is provided with a mechanical ball valve.

[0007] The remote control's vacuum pump exhaust device also comprises a filter arranged on the main exhaust pipeline.

[0008] The vacuum pump control box is internally provided with a PLC controller, and a man-machine interactive interface is arranged on the box.

[0009] The PLC controller is S7-200smart, and the centrifugal pump is a horizontal centrifugal pump.

[0010] The remote-controlled vacuum pump exhaust device further comprises a flow sensor connected with the vacuum pump control box, the flow sensor is arranged at the outlet position of the vacuum pump, and is used for detecting the outlet flow of the vacuum pump and sending the outlet flow to the vacuum pump control box.

[0011] The vacuum pump has two, which are standby for each other, and guarantee the redundancy of the vacuum pump.

[0012] The PLC controller is further used for controlling the start and stop of the centrifugal pump.

[0013] In addition, the utility model further provides a remote-controlled vacuum pump exhaust system, including PLC general control box and a plurality of one kind of remote-controlled vacuum pump exhaust device, the vacuum pump control box of each vacuum pump exhaust device further is provided with switch, each vacuum pump control box is connected with PLC general control box communication through switch.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1, the utility model provides a remote-controlled vacuum pump exhaust device and system, on the basis of existing pipeline, increase the normally closed electromagnetic valve in the original main exhaust pipeline, realize the on-off control of vacuum pump exhaust pipeline through the normally closed electromagnetic valve of vacuum pump control box, realize the remote control of vacuum pump exhaust, increase the standby pipeline composed of mechanical ball valve as exhaust bypass under normal circumstances, through the control electromagnetic valve opening and closing complete main exhaust pipeline's start and stop, once electromagnetic valve appears the failure, can manually open mechanical ball valve and switch to bypass exhaust, improve the redundancy of exhaust pipeline.

[0016] 2, the utility model adopts S7-200smart small PLC as the control unit of vacuum pump control box, and integrates vacuum pump start and stop button on the control box panel, and the electromagnetic valve start and stop signal is input to PLC through the start and stop button, and the electromagnetic valve is opened under the control of PLC, and the exhaust passage is opened, and the vacuum pump motor is opened, and the centrifugal water pump is pumped.

[0017] 3, the utility model sets up filter in main exhaust pipeline, can filter the foreign matter in exhaust pipeline, can greatly reduce the condition that electromagnetic valve is stuck by foreign matter, improves the operation stability of vacuum pump, and the flowmeter is arranged at the outlet of vacuum pump, can monitor the outlet flow of vacuum pump, so as to judge whether the air in the pump shell is exhausted, which is beneficial to realize the full-automatic vacuum exhaust function through function linkage. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure schematic view of a remote control vacuum pump exhaust system provided by the utility model embodiment one is provided;

[0019] Figure 2 A structure schematic view of a remote control vacuum pump exhaust device provided by the utility model embodiment two is provided. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model embodiments more clear, the technical scheme in the utility model embodiments will be clearly and completely described below, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments;Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0021] Embodiment one

[0022] As Figure 1 The utility model embodiment one provides a remote control vacuum pump exhaust system, including PLC general control box and a plurality of vacuum pump exhaust devices, specifically, including vacuum pump exhaust device vacuum pump, vacuum pump control box, vacuum pump is used for carrying out the vacuumization to centrifugal pump pipeline, still includes: main exhaust pipeline and electromagnetic valve, one end of main exhaust pipeline is connected with centrifugal pump, the other end is connected with vacuum pump, electromagnetic valve is arranged on main exhaust pipeline, the control end of electromagnetic valve is connected with vacuum pump control box, be provided with start button and stop button on vacuum pump control box, be used for input electromagnetic valve opening signal and closing signal, the output end of vacuum pump control box is connected with the control end of electromagnetic valve.

[0023] Further, as Figure 1 In the embodiment, the vacuum pump exhaust device still includes the standby pipeline in parallel with main exhaust pipeline, be provided with mechanical ball valve on standby pipeline, normally, the opening and closing of main exhaust pipeline are completed by starting button and stop button control electromagnetic valve, once electromagnetic valve appears the failure, can manually open mechanical ball valve and switch to standby pipeline exhaust, can improve the redundancy of exhaust pipeline.

[0024] Further, the vacuum pump exhaust device of the embodiment still includes the filter arranged on main exhaust pipeline, the filter can filter the foreign matter in exhaust pipeline, can greatly reduce the condition that electromagnetic valve is stuck by foreign matter, improves the operation stability of vacuum pump.

[0025] Further, as Figure 1As shown, the vacuum pump control box is provided with a PLC controller, and a man-machine interactive interface is arranged on the box. Then, through the man-machine interactive interface, the working states of each part can be displayed, so that the operator can quickly check the current vacuum pump running state.

[0026] Further, in the embodiment, the PLC controller is S7-200smart, and the centrifugal pump is a horizontal centrifugal pump.

[0027] Further, in the embodiment, the vacuum pump exhaust device further comprises a flow sensor connected with the vacuum pump control box, the flow sensor is arranged at the outlet position of the vacuum pump, and is used to detect the outlet flow of the vacuum pump and send it to the vacuum pump control box.

[0028] Further, in the embodiment, the vacuum pump has two, which are standby for each other. In addition, the embodiment further comprises a vacuum pump actuator control box for controlling the start and stop of the vacuum pump, and each vacuum pump actuator control box controls two main and standby vacuum pumps, which increases the redundancy of the vacuum pump and ensures that the centrifugal pump can work normally when one of the vacuum pumps fails.

[0029] Further, in the embodiment, the PLC controller is further used to control the start and stop of the centrifugal pump. The operator only needs to operate at the position of the vacuum pump control box, and can realize the start and stop of the electromagnetic valve. After the vacuum pump completes the vacuum pumping, the start of the centrifugal pump can be continued.

[0030] In addition, in the embodiment, the vacuum pump control box of each vacuum pump exhaust device is further provided with a switch, and each vacuum pump control box is in communication connection with the PLC general control box through the switch. Then, the PLC general control box can obtain the electromagnetic valve state signal corresponding to each vacuum pump control box, and the PLC general control box can also send the electromagnetic valve opening and closing signal to each vacuum pump control box, so as to control the opening and closing of the corresponding main pipeline. In addition, the PLC general control box is also connected with the vacuum pump actuator control box, so as to send the start and stop signals to the vacuum pump actuator control box, and also receives the state feedback signal sent by the vacuum pump actuator control box. The operator can also obtain the state information of each vacuum pump on the PLC general control.

[0031] In addition, in the embodiment, the flow sensor arranged at the outlet position of each vacuum pump can also be connected with the PLC general control box. Then, the PLC general control box can directly obtain the outlet flow of the vacuum pump, and then send the start and stop signals to the centrifugal pump to control the opening of the centrifugal pump.

[0032] Embodiment two

[0033] As Figure 2As shown in the utility model embodiment two provides a kind of remote control's vacuum pump exhaust device, including vacuum pump, vacuum pump control box, vacuum pump is used to carry out vacuumizing to centrifugal pump pipeline, further include: main exhaust pipeline and solenoid valve, one end of the main exhaust pipeline is connected with centrifugal pump, the other end is connected with vacuum pump, the solenoid valve is arranged on main exhaust pipeline, the control end of the solenoid valve is connected with the vacuum pump control box, start button and stop button are provided on the vacuum pump control box, for input solenoid valve opening signal and closing signal, the output end of the vacuum pump control box is connected with the control end of solenoid valve.

[0034] Further, as Figure 2 As shown in the utility model embodiment, a kind of remote control's vacuum pump exhaust device, further include spare pipeline in parallel with main exhaust pipeline, mechanical ball valve is provided on the spare pipeline.Under normal circumstances, the opening and closing of main exhaust pipeline are completed by the control solenoid valve opening and closing of start button and stop button, once solenoid valve fails, can manually open mechanical ball valve and switch to spare pipeline exhaust, can improve the redundancy of exhaust pipeline.

[0035] Further, a kind of remote control's vacuum pump exhaust device of the utility model embodiment, further include filter arranged on main exhaust pipeline.Filter can filter out foreign matter in exhaust pipeline, can greatly reduce the condition that solenoid valve is stuck by foreign matter, improve the running stability of vacuum pump.

[0036] Further, as Figure 2 As shown in the utility model embodiment, PLC controller is arranged in the vacuum pump control box, and man-machine interface is arranged on the box body.Then through man-machine interface, each part working state can be displayed, so that operator can quickly check current vacuum pump operating state.

[0037] Further, in the utility model embodiment, PLC controller is S7-200smart, and the centrifugal pump is horizontal centrifugal pump.

[0038] Further, a kind of remote control's vacuum pump exhaust device of the utility model embodiment, further include flow sensor connected with the vacuum pump control box, the flow sensor is arranged at the outlet position of the vacuum pump, for detecting vacuum pump outlet flow and sending to the vacuum pump control box.

[0039] Further, in the utility model embodiment, the vacuum pump has two, and they are standby for each other.In addition, in the utility model embodiment, vacuum pump actuator control box is also included, for controlling the start and stop of vacuum pump, so that each vacuum pump actuator control box controls two vacuum pumps of main and standby, increase the redundancy of vacuum pump, ensure that when certain machine fails, centrifugal pump vacuumizing work is not affected normal.

[0040] Further, in the embodiment, the vacuum pump has two, respectively for main centrifugal pump and standby centrifugal pump to carry out vacuumizing.

[0041] Further, in the embodiment, the PLC controller is also used for controlling the start and stop of the centrifugal pump. The operator only needs to operate at the vacuum pump control box position, that is, the start and stop of the electromagnetic valve can be realized, and after the vacuum pump completes the vacuumizing, the start of the centrifugal pump can be continued.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A remote controlled vacuum pump exhaust device comprising a vacuum pump for evacuating a centrifugal pump piping, a vacuum pump control box, characterized in that, Also include: The main exhaust pipeline and solenoid valve, one end of the main exhaust pipeline is connected with centrifugal pump, the other end is connected with vacuum pump, the solenoid valve is arranged on the main exhaust pipeline, the control end of the solenoid valve is connected with the vacuum pump control box, the vacuum pump control box is provided with start button and stop button, respectively for input solenoid valve opening signal and closing signal, the output end of the vacuum pump control box is connected with the control end of the solenoid valve.

2. A remotely controlled vacuum pump exhaust apparatus according to claim 1, wherein Also include the standby pipeline in parallel with the main exhaust pipeline, the standby pipeline is provided with mechanical ball valve.

3. The remotely controlled vacuum pump exhaust apparatus of claim 1, wherein, Also include the filter arranged on the main exhaust pipeline.

4. The remotely controlled vacuum pump exhaust apparatus of claim 1, wherein, The vacuum pump control box is provided with PLC controller, and the box body is provided with man-machine interface.

5. A remotely controlled vacuum pump exhaust apparatus according to claim 4, wherein The PLC controller is S7-200smart, and the centrifugal pump is horizontal centrifugal pump.

6. A remotely controlled vacuum pump exhaust apparatus according to claim 4, wherein The PLC controller is also used for controlling the start and stop of the centrifugal pump.

7. The remotely controlled vacuum pump exhaust apparatus of claim 1, wherein, Also include the flow sensor connected with the vacuum pump control box, the flow sensor is arranged at the outlet position of the vacuum pump, for detecting the outlet flow of the vacuum pump and sending to the vacuum pump control box.

8. The remotely controlled vacuum pump exhaust apparatus of claim 1, wherein, The vacuum pump has two, respectively for main centrifugal pump and standby centrifugal pump are pumped.

9. A remotely controlled vacuum pump exhaust system, characterized by, Include PLC general control box and a plurality of the remote control vacuum pump exhaust device of claim 1, the vacuum pump control box of each vacuum pump exhaust device is also provided with switch, each vacuum pump control box is connected with PLC general control box communication through switch.

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