Negative pressure cleaning device of jet mixer

Abstract

The utility model provides a jet flow mixer's negative pressure cleaning device, including jet flow mixer, jet flow mixer includes mass transfer cavity pipe body, and incident pipe and diffusion pipe respectively fixed connection at mass transfer cavity pipe body both ends, the incident pipe is provided with a first connection port, the mass transfer cavity pipe body is provided with a second connection port, the diffusion pipe is provided with a second connection port, and the first connection port is connected with the second connection port. The first connector is connected with a front pressure transmitter and a cleaning pipeline through a three-way joint, the other end of the cleaning pipeline is connected with a negative pressure mechanism through a pneumatic ball valve, and the negative pressure mechanism is fixedly arranged on the second connector. The cleaning structure is simple and reliable and effectively ensures stable operation of the system.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, in particular to a negative pressure cleaning device for a jet mixer. Background Art

[0002] In water treatment systems, pollutants in water are often adsorbed by adding activated carbon powder. When the activated carbon powder is added using a jet mixer, the water to be treated with a certain pressure enters the mass transfer chamber of the jet mixer to form a negative pressure. Under the action of the negative pressure, the activated carbon powder is sucked into the injection port and mixed with the water to be treated, and then discharged at the outlet to add the activated carbon powder to the water to be treated. However, after long-term operation, some activated carbon powder will accumulate inside the negative pressure gauge tube and the jet mixer, causing internal contamination and difficult to clean. Sometimes it will even block the negative pressure gauge tube, making it impossible for the negative pressure transmitter to accurately monitor the working pressure in the jet mixer in real time, resulting in unstable system operation. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a negative pressure cleaning device for a jet mixer which can quickly flush the interior of the jet mixer and its negative pressure gauge tube, has a simple and reliable cleaning structure and ensures stable operation of the system.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a negative pressure cleaning device for a jet mixer, including a jet mixer, the jet mixer including a mass transfer cavity tube body and an injection tube and a diffusion tube respectively fixedly connected to the two ends of the mass transfer cavity tube body, the injection tube is provided with a first connecting port, the mass transfer cavity tube body is provided with a second connecting port, the first connecting port is connected to the front pressure transmitter and the cleaning pipeline respectively through a three-way joint, the other end of the cleaning pipeline is connected to the negative pressure mechanism through a pneumatic ball valve, and the negative pressure mechanism is fixedly provided on the second connecting port.

[0005] Furthermore, the negative pressure mechanism includes a buffer chamber, a first connecting tube arranged directly below the buffer chamber, a second connecting tube arranged directly above the buffer chamber, and a third connecting tube arranged on the side wall of the buffer chamber. The first connecting tube is fixedly connected to the second connecting port, the second connecting tube is fixedly connected to the pneumatic ball valve, and the third connecting tube is fixedly connected to the negative pressure transmitter.

[0006] Furthermore, the first connecting tube, the buffer chamber and the second connecting tube are arranged perpendicular to the mass transfer chamber body.

[0007] Furthermore, a manual valve is provided on one side of the cleaning pipeline close to the three-way joint.

[0008] Furthermore, a third connecting port is provided on the diffusion pipe, and a rear pressure transmitter is fixedly connected to the third connecting port.

[0009] Compared with the prior art, the advantages and beneficial effects of the utility model are as follows: the negative pressure cleaning device of the jet mixer of the utility model utilizes the Venturi tube principle of the jet mixer, and uses power water as a carrier to form a negative pressure in the mass transfer cavity tube body after entering the incident tube. At the same time, a negative pressure is also formed in the negative pressure mechanism connected to the mass transfer cavity tube body. When cleaning the jet mixer and the negative pressure gauge tube, the pneumatic ball valve is controlled to open, and part of the power water enters the negative pressure mechanism through the cleaning pipeline. Under the action of negative pressure, the power water flushes the negative pressure gauge tube and the inside of the mixer. The power water and activated carbon powder mixture after flushing is discharged at the diffusion tube, thereby realizing rapid flushing of the inside of the jet mixer and the negative pressure gauge tube, effectively preventing them from being blocked and extending the stable operation time of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of a negative pressure cleaning device of a jet mixer of the utility model.

[0011] Figure 2 The utility model is a structural schematic diagram of a negative pressure mechanism of a negative pressure cleaning device of a jet mixer.

[0012] In the figure: 1-mass transfer cavity body; 2-incident tube; 3-diffusion tube; 4-first connecting port; 5-second connecting port; 6-tee joint; 7-front pressure transmitter; 8-cleaning pipeline; 9-pneumatic ball valve; 10-buffer cavity; 11-first connecting pipe; 12-second connecting pipe; 13-third connecting pipe; 14-negative pressure transmitter; 15-manual valve; 16-third connecting port; 17-back pressure transmitter. DETAILED DESCRIPTION

[0013] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0014] like Figure 1-Figure 2 As shown, a negative pressure cleaning device for a jet mixer includes a jet mixer, the jet mixer includes a mass transfer cavity tube body 1 and an injection tube 2 and a diffusion tube 3 respectively fixedly connected to the two ends of the mass transfer cavity tube body 1, the injection tube 2 is provided with a first connecting port 4, the mass transfer cavity tube body 1 is provided with a second connecting port 5, the first connecting port 4 is connected to the front pressure transmitter 7 and the cleaning pipeline 8 respectively through a three-way joint 6, the other end of the cleaning pipeline 8 is connected to the negative pressure mechanism through a pneumatic ball valve 9, and the negative pressure mechanism is fixedly provided on the second connecting port 5.

[0015] Specifically, the negative pressure cleaning device of the present invention is connected to each other through the cleaning pipeline 8, the pneumatic ball valve 9 and the negative pressure mechanism to form a closed loop with the jet mixer's injection pipe 2 and the mass transfer cavity tube body 1. The Venturi tube principle of the jet mixer is utilized, and after the power water is used as a carrier to enter the injection pipe 2, a negative pressure is formed in the mass transfer cavity tube body 1. At the same time, a negative pressure is also formed in the negative pressure mechanism connected to the mass transfer cavity tube body 1. When cleaning the jet mixer and the negative pressure gauge tube, the pneumatic ball valve 9 is controlled to open, and part of the power water enters the negative pressure mechanism through the cleaning pipeline 8. Under the action of negative pressure, the power water flushes the negative pressure gauge tube and the inside of the mixer. The power water and activated carbon powder mixture after flushing is discharged at the diffusion tube 3, thereby realizing rapid flushing of the inside of the jet mixer and the negative pressure gauge tube. The cleaning structure is simple and reliable, and effectively prevents its blockage, thereby extending the stable operation time of the system. In addition, the front pressure transmitter 7 is connected to the first connecting port 4 through the three-way joint 6, and the pressure in the injection pipe 2 can be monitored in real time to ensure the normal operation of the system.

[0016] Furthermore, the negative pressure mechanism includes a buffer chamber 10, a first connecting tube 11 arranged directly below the buffer chamber 10, a second connecting tube 12 arranged directly above the buffer chamber 10, and a third connecting tube 13 arranged on the side wall of the buffer chamber 10, the first connecting tube 11 is fixedly connected to the second connecting port 5, the second connecting tube 12 is fixedly connected to the pneumatic ball valve 9, and the third connecting tube 13 is fixedly connected to the negative pressure transmitter 14.

[0017] Specifically, the negative pressure mechanism is a three-interface design, the first connecting pipe 11 is connected to the mass transfer cavity tube body 1, the second connecting pipe 12 is connected to the pneumatic ball valve 9, and the third connecting pipe 13 is connected to the negative pressure transmitter 14. The installation of the negative pressure transmitter 14 can monitor the negative pressure in the mass transfer cavity tube body 1 in real time, ensure the normal operation of the system and ensure the safety of the negative pressure gauge tube. The power water enters the buffer chamber 10 through the second connecting pipe 12. Under the action of negative pressure, the power water will enter the third connecting pipe 13 to flush the negative pressure gauge tube of the negative pressure transmitter 14. At the same time, it will also enter the mass transfer cavity tube body 1 through the first connecting pipe 11 to flush, thereby realizing rapid flushing of the inside of the jet mixer and the negative pressure gauge tube, and the buffer chamber 10 has a good buffering effect on the entering power water, effectively preventing the water flow impact force from being too large to damage the negative pressure transmitter 14.

[0018] Furthermore, the first connecting tube 11, the buffer chamber 10 and the second connecting tube 13 are arranged vertically to the mass transfer chamber tube body 1, so that after the power water enters the buffer chamber 10 through the second connecting tube 12, it enters the mass transfer chamber tube body 1 vertically through the first connecting tube 11, thereby increasing the impact force of the power water on the inside of the mass transfer chamber tube body 1 and achieving a better cleaning effect.

[0019] Furthermore, a manual valve 15 is provided on the side of the cleaning pipeline 8 close to the three-way joint 6 as a backup valve. When the pneumatic ball valve 9 is working normally, it is in a normally open state. When the pneumatic ball valve 9 fails or the system is under emergency maintenance, the manual valve 15 can be used to control the opening and closing of the cleaning pipeline 8.

[0020] Furthermore, the diffuser 3 is provided with a third connection port 16 , to which a rear pressure transmitter 17 is fixedly connected for real-time monitoring of the pressure inside the diffuser 3 to ensure normal operation of the system.

[0021] The working process of the utility model is as follows: when the jet mixer is working normally, the manual valve and the pneumatic ball valve are in a closed state, and the jet mixer adds activated carbon powder to the water to be treated. At this time, the activated carbon powder suspension will enter the negative pressure gauge tube, and the pressure in the mass transfer cavity tube body will be detected in real time through the negative pressure transmitter. When the activated carbon powder is excessively precipitated and aggregated inside the jet mixer and the negative pressure gauge tube, affecting the normal operation of the system, it is necessary to close the activated carbon powder adding system, open the manual valve, control the pneumatic ball valve to open, and the power water for cleaning enters at the inlet pipe, part of it enters the mass transfer cavity tube body to form negative pressure, and part of it enters the buffer cavity through the cleaning pipeline. Under the action of negative pressure, the power water flushes the negative pressure gauge tube and the inside of the mass transfer cavity tube body. After the flushing is completed, the pneumatic ball valve and the manual valve are controlled to close, and the adding system operates normally.

[0022] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A negative pressure cleaning device for a jet mixer, comprising a jet mixer, wherein the jet mixer comprises a mass transfer cavity tube body and an injection tube and a diffusion tube respectively fixedly connected to both ends of the mass transfer cavity tube body, characterized in that: A first connecting port is provided on the incident tube, and a second connecting port is provided on the mass transfer cavity tube body. The first connecting port is connected to the front pressure transmitter and the cleaning pipeline respectively through a three-way joint. The other end of the cleaning pipeline is connected to the negative pressure mechanism through a pneumatic ball valve, and the negative pressure mechanism is fixedly arranged on the second connecting port.

2. The negative pressure cleaning device for a jet mixer according to claim 1, characterized in that: The negative pressure mechanism includes a buffer chamber, a first connecting tube arranged directly below the buffer chamber, a second connecting tube arranged directly above the buffer chamber, and a third connecting tube arranged on the side wall of the buffer chamber. The first connecting tube is fixedly connected to the second connecting port, the second connecting tube is fixedly connected to the pneumatic ball valve, and the third connecting tube is fixedly connected to the negative pressure transmitter.

3. The negative pressure cleaning device for a jet mixer according to claim 2, characterized in that: The first connecting tube, the buffer cavity and the second connecting tube are arranged perpendicular to the mass transfer cavity body.

4. The negative pressure cleaning device for a jet mixer according to claim 1, characterized in that: A manual valve is provided on one side of the cleaning pipeline close to the three-way joint.

5. The negative pressure cleaning device for a jet mixer according to claim 1, characterized in that: The diffusion tube is provided with a third connection port, and the third connection port is fixedly connected to a rear pressure transmitter.

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