A kind of anti-cavitation auxiliary device for pump

Abstract

The utility model relates to the field of anti-cavitation, and relates to an anti-cavitation auxiliary device for a machine pump. It comprises a pump body, which is mounted on a machine base and fastened with fastening bolts, the pump body comprises a pump inlet and a pump outlet, the pump outlet is connected to an outlet pipeline, the outlet pipeline is provided with a bracket, a control panel is provided on the upper part of the bracket, the control panel is provided with a vibration detection module, a liquid sensing module, a data acquisition module, a data processing module, a data comparison module and a control circuit module, the vibration detection module, the liquid sensing module, the data acquisition module, the data comparison module and the control circuit module are all electrically connected to the data processing module, and the pipeline of the pump outlet is provided with a pressure gauge. When the liquid sensor senses that liquid is discharged, the deflation solenoid valve can be closed in time through the control panel, so that the gas in the pump body can be discharged in time, the cavitation phenomenon can be eliminated, and the normal operation of the pump can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of anti-cavitation, and more specifically to an anti-cavitation auxiliary device for a pump. Background Art

[0002] When the pump is operating normally, when there is gas in the medium, the medium is pumped into the pump, and the pump rotor will expand the gas and form a vacuum, which will eventually lead to cavitation in the pump. Or when the medium temperature suddenly rises, cavitation will also occur. Cavitation will cause the pump to vibrate violently and make a lot of noise. At the same time, it will also significantly reduce the flow rate, head and efficiency of the pump. In severe cases, it will also cause serious accidents such as impeller rupture, bearing damage, and shaft bending. Since cavitation occurs very quickly, it is not easy to be discovered by inspection personnel. When it is discovered, it may have caused certain damage to the pump or process production. Therefore, cavitation must be eliminated in time to ensure the stable operation of the pump and the device. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide an anti-cavitation auxiliary device for a pump.

[0004] To solve the above problems, the utility model adopts the following technical solutions.

[0005] An anti-cavitation auxiliary device for a machine pump comprises a pump body, which is mounted on a machine base and fastened with fastening bolts. The pump body comprises a pump inlet and a pump outlet. The pump outlet is connected to an outlet pipeline. The outlet pipeline is provided with a bracket. A control panel is provided on the upper part of the bracket. The control panel is provided with a vibration detection module, a liquid sensing module, a data acquisition module, a data processing module, a data comparison module and a control circuit module. The vibration detection module and the liquid sensing module are electrically connected to the data acquisition module, the data acquisition module is electrically connected to the data comparison module, the data comparison module is electrically connected to the data processing module, the vibration detection module, the liquid sensing module, the data acquisition module, the data comparison module and the data processing module are all electrically connected to the control circuit module, and the pipeline at the pump outlet is provided with a pressure gauge.

[0006] Furthermore, a magnet is provided at one end close to the pump inlet, and a vibration sensor is provided above the magnet. The vibration sensor is in contact with the pump body and is connected to the control panel via a data cable.

[0007] Furthermore, a deflation solenoid valve is provided on one side of the bracket of the outlet pipeline, and the deflation solenoid valve is electrically connected to a data processing module in the control panel via a data line.

[0008] Furthermore, an exhaust pipe is connected above the air release solenoid valve, and the exhaust pipe is connected to the flare line.

[0009] Furthermore, a liquid sensor is provided on the exhaust pipe near the upper part of the air release solenoid valve, and the liquid sensor is electrically connected to the liquid sensing module in the control panel.

[0010] The beneficial effects achieved by the utility model are:

[0011] (1) This solution can monitor the vibration of the pump body in real time. When the vibration of the pump body becomes larger, the vibration detection module, data acquisition module, data comparison module, and data processing module of the control panel will open the venting solenoid valve to vent the air in time. When the liquid sensor senses that liquid is being discharged, the venting solenoid valve can be closed in time through the control panel, so that the gas in the pump body can be discharged in time, cavitation can be eliminated, and the normal operation of the pump can be ensured.

[0012] (2) A magnet is provided near the inlet end of the pump body, and a vibration sensor is provided above the magnet. The air release solenoid valve is electrically connected to the data processing module in the control panel through a data line. The vibration sensor can monitor the operating status of the pump in real time. When the vibration becomes larger, the data can be transmitted to the control panel and further measures can be taken.

[0013] (3) A deflation solenoid valve is provided on one side of the outlet pipeline bracket, and the deflation solenoid valve is connected to the control panel through a data line. When the control panel collects data indicating that the vibration becomes larger, the deflation solenoid valve can be opened for deflation through the data comparison module and the data processing module in the control panel, so as to eliminate the cavitation phenomenon in time.

[0014] (4) An exhaust pipe is connected above the vent solenoid valve, and the exhaust pipe is connected to the flare line. When cavitation occurs, the vent solenoid valve opens to exhaust gas. After the gas is exhausted, liquid medium will be discharged, and the medium will be discharged into the flare line to avoid polluting the atmospheric environment.

[0015] (5) A liquid sensor is provided on the exhaust pipe near the upper part of the venting solenoid valve. The liquid sensor is linearly connected to the liquid sensing module in the control panel. When the medium is discharged after the gas is discharged, the liquid sensor senses the liquid medium and transmits the data to the control panel, so that a judgment can be made in time to close the venting solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of an anti-cavitation auxiliary device for a pump of the utility model;

[0018] Figure 2 This is a front view of an anti-cavitation auxiliary device for a pump according to the utility model;

[0019] Figure 3 This is a rear view of an anti-cavitation auxiliary device for a pump according to the utility model;

[0020] Figure 4 It is a schematic diagram of the internal structure of the control panel in the utility model.

[0021] Explanation of the numbers in the figure: 1. Pump body; 101. Pump inlet; 102. Pump outlet; 2. Machine base; 201. Fastening bolts; 3. Export pipeline; 4. Magnet; 401. Vibration sensor; 5. Control panel; 501. Bracket; 502. Vibration detection module; 503. Liquid sensing module; 504. Data acquisition module; 505. Data comparison module; 506. Data processing module; 507. Control circuit module; 6. Deflation solenoid valve; 7. Liquid sensor; 8. Exhaust pipe; 9. Pressure gauge; 10. Export pipeline.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] like Figure 1-3 As shown: an anti-cavitation auxiliary device for a pump, comprising a pump body 1, the pump body 1 is mounted on a machine base 2 and fastened with a fastening bolt 201, the pump body 1 comprises a pump inlet 101 and a pump outlet 102, the pump outlet 102 is connected to an outlet pipeline 3, the outlet pipeline 3 is provided with a bracket 501, a control panel 5 is provided on the upper part of the bracket 501, and a vibration detection module 502, a liquid sensing module 503, a data acquisition module 504, a data processing module 506, and a data comparison module 505 are provided in the control panel 5. And a control circuit module 507, the vibration detection module 502 and the liquid sensing module 503 are electrically connected to the data acquisition module 504, the data acquisition module 504 is electrically connected to the data comparison module 505, the data comparison module 505 is electrically connected to the data processing module 506, the vibration detection module 502, the liquid sensing module 503, the data acquisition module 504, the data comparison module 505 and the data processing module 506 are all electrically connected to the control circuit module 507, and the pump outlet pipeline is provided with a pressure gauge.

[0027] like Figure 1 As shown, a magnet 4 is arranged near the inlet end of the pump body 1, a vibration sensor 401 is arranged above the magnet 4 and contacts the pump body 1, and is connected to the control panel 5 through a data line. The vibration sensor 401 can monitor the operating status of the pump in real time. When the vibration becomes larger, the data can be transmitted to the control panel 5 and further measures can be taken.

[0028] like Figure 1-3As shown, a deflation solenoid valve 6 is provided on one side of the bracket 501 of the outlet pipeline 3, and the deflation solenoid valve 6 is electrically connected to the data processing module 506 in the control panel through a data line. When the control panel 5 collects data indicating that the vibration becomes larger, the deflation solenoid valve 6 can be opened for deflation through the data comparison module and the data processing module in the control panel, so as to eliminate the cavitation phenomenon in time.

[0029] like Figure 2-3 An exhaust pipe 8 is connected above the venting electromagnetic valve 6, and the exhaust pipe 8 is connected to the flare line. When cavitation occurs, the venting electromagnetic valve 6 is opened to exhaust. When the gas is exhausted, liquid medium will be discharged, and the medium will be discharged into the flare line to avoid polluting the atmospheric environment.

[0030] like Figure 2-3 A liquid sensor 7 is connected to the exhaust pipe 8 and is arranged near the upper part of the deflation solenoid valve 6. The liquid sensor 7 is electrically connected to the liquid sensing module 503 in the control panel. When the medium is discharged after the gas is discharged, the liquid sensor 7 senses the liquid medium and transmits the data to the control panel 5, so that a judgment can be made in time to close the deflation solenoid valve 6.

[0031] In this solution, when cavitation occurs, the vibration of the pump body increases, and the vibration signal is transmitted to the control panel through the vibration sensor. After the data acquisition module, data comparison module, and data processing module in the control panel, a timely response can be made to open the venting solenoid valve, so that the gas in the pump and pipeline can be discharged in time to eliminate the cavitation phenomenon. When all the gas is discharged, the liquid sensor can sense the liquid medium discharged from the exhaust pipe and transmit the signal to the control panel, and the control panel responds to close the venting solenoid valve. This solution has a simple and reliable structure, and can eliminate the cavitation phenomenon in time when cavitation occurs in the pump, thereby ensuring the safe and stable operation of the pump and the device.

[0032] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An anti-cavitation auxiliary device for a pump, comprising a pump body, characterized in that: The pump body is installed on the machine base and fastened with fastening bolts. The pump body includes a pump inlet and a pump outlet. The pump outlet is connected to an outlet pipeline. The outlet pipeline is provided with a bracket. A control panel is provided on the upper part of the bracket. The control panel is provided with a vibration detection module, a liquid sensing module, a data acquisition module, a data processing module, a data comparison module and a control circuit module. The vibration detection module and the liquid sensing module are electrically connected to the data acquisition module, the data acquisition module is electrically connected to the data comparison module, the data comparison module is electrically connected to the data processing module, the vibration detection module, the liquid sensing module, the data acquisition module, the data comparison module and the data processing module are all electrically connected to the control circuit module, and the pipeline at the pump outlet is provided with a pressure gauge.

2. The anti-cavitation auxiliary device for a pump according to claim 1, characterized in that: A magnet is arranged at one end close to the pump inlet, and a vibration sensor is arranged above the magnet. The vibration sensor is in contact with the pump body and is connected to the control panel through a data line.

3. The anti-cavitation auxiliary device for a pump according to claim 1, characterized in that: A deflation solenoid valve is provided on one side of the bracket of the outlet pipeline, and the deflation solenoid valve is electrically connected to a data processing module in the control panel through a data line.

4. The anti-cavitation auxiliary device for a pump according to claim 3, characterized in that: An exhaust pipe is connected above the air release solenoid valve, and the exhaust pipe is connected to the flare line.

5. The anti-cavitation auxiliary device for a pump according to claim 4, characterized in that: A liquid sensor is provided on the exhaust pipe near the upper part of the air release solenoid valve, and the liquid sensor is electrically connected to the liquid sensing module in the control panel.

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