Liquid spraying and atomizing system capable of preventing liquid dripping

Abstract

The utility model discloses a liquid spraying atomization system capable of preventing liquid dripping. The liquid spraying atomization system comprises a controller, a weighing barrel, a pressure sensor, a liquid adding pump, a nozzle distribution device, an air compressor, a first pipeline and a second pipeline. The nozzle distribution device is communicated with the weighing barrel through a first pipeline, and the liquid adding pump is arranged on the first pipeline; the pressure sensor is arranged on the first pipeline between the liquid adding pump and the nozzle distribution device, one end of the second pipeline is connected with the air compressor, the other end of the second pipeline is communicated with the first pipeline, and the communication position is located between the pressure sensor and the liquid adding pump. And the controller is used for controlling the air compressor to convey air into the nozzle distribution device to participate in atomization of the liquid additive. The liquid spraying and atomizing system is provided with the controller, the air compressor and the pressure sensor, so that the liquid spraying and atomizing system is uniform in spraying, and the situations that the liquid additive is wasted due to the fact that the liquid additive is accumulated in a pipeline and the adding effect is affected due to the fact that the liquid additive is not atomized and directly flows out are avoided when atomization and spraying of the liquid additive are finished.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid adding equipment, in particular to a liquid spraying and atomizing system for preventing dripping. Background Art

[0002] In the process of feed production, it is necessary to add some trace liquids, such as methionine, grease, vitamins, etc. The equipment measures through a weighing and metering device and then adds it to the mixer. With the development of the feed industry, the requirements for feed quality are getting higher and higher. The addition amount of some feed additives is between 100 ml and 300 ml. Most systems use weighing sensors that can handle small ranges and have high precision to ensure the accurate metering of additives. The additives are transported by a pump and atomized in a fan shape at the nozzle to be evenly sprayed on the feed.

[0003] As Figure 1 shown, the nozzle 1 of the prior art is directly installed on the pipeline behind the cut-off valve 2 and has a certain distance L from the cut-off valve 2. When the spraying metering of the system reaches the set value, the pump stops transporting, the pressure in the pipeline becomes smaller, and the pressure at the nozzle also becomes smaller. When the pressure at the nozzle 1 is too small, the liquid additive cannot be atomized in a fan shape at the nozzle 1, and at this time, it will cause local addition in a dripping manner, seriously affecting the addition effect and product quality. Content of the Utility Model

[0004] The utility model aims at the above problems and at least overcomes one of them, and provides a liquid spraying and atomizing system for preventing dripping.

[0005] The technical solution adopted by the utility model is as follows:

[0006] The present application provides a liquid spraying and atomizing system for preventing dripping, including: a controller, a weighing bucket, a pressure sensor, a liquid adding pump, a nozzle distribution device, an air compressor, a first pipeline and a second pipeline;

[0007] The weighing bucket is used for storing the liquid additive to be atomized and sprayed;

[0008] The nozzle distribution device is communicated with the weighing bucket through the first pipeline,

[0009] The liquid adding pump is arranged on the first pipeline, the liquid adding pump is electrically connected with the controller, and the liquid adding pump is used for pumping the liquid additive to be atomized and sprayed from the weighing bucket to the nozzle distribution device;

[0010] The pressure sensor is arranged on the first pipeline between the liquid addition pump and the nozzle dispensing device, and the pressure sensor is electrically connected to the controller; when the controller detects that the pressure value of the pressure sensor reaches the set value, the controller controls and adjusts the frequency of the liquid addition pump to control the pressure of the liquid additive ejected at the nozzle dispensing device;

[0011] One end of the second pipeline is connected to the air compressor, and the other end is communicated with the first pipeline. The connection point of the second pipeline and the first pipeline is located between the pressure sensor and the liquid addition pump. The air compressor is electrically connected to the controller; the controller is also used to control the air compressor to work, so that the air compressor conveys air into the nozzle dispensing device to participate in the atomization of the liquid additive.

[0012] Actually, during the process of the liquid addition pump normally transporting the liquid additive to the nozzle dispensing device, the pressure sensor real-time monitors the pressure of the pipeline at the nozzle dispensing device. When the pressure value of the pressure sensor reaches the set value, the controller controls and adjusts the frequency of the liquid addition pump to control the pressure of the liquid additive ejected at the nozzle dispensing device, so that the liquid additive at the nozzle is ejected under a high-pressure state and forms a high-speed jet, and the jet forms atomization in the air.

[0013] Before the atomization spraying of the liquid additive is about to end and the controller controls the liquid addition pump to close, the controller controls the air compressor to work, so that the air compressor conveys air into the nozzle dispensing device to participate in the atomization of the liquid additive; after the liquid addition pump is closed, the air compressor continues to work to atomize and eject the liquid additive stored in the pipeline, avoiding the accumulation of the liquid additive in the pipeline and the direct outflow of the liquid additive without atomization in the form of dripping.

[0014] The liquid spraying and atomization system provided by the present application avoids the waste of the liquid additive caused by the accumulation of the liquid additive in the pipeline, the direct outflow of the liquid additive without atomization affecting the addition effect and the product quality by setting an air compressor and a pressure sensor, and selecting to turn on the air compressor to participate in atomization in a timely manner according to the pressure sensor when ending the atomization spraying of the liquid additive.

[0015] By setting a controller to timely control the operation of the air compressor, the liquid spraying and atomization system can also spray evenly during normal operation.

[0016] Further, a first switch valve is further included. The first switch valve is arranged on the first pipeline and is arranged between the pressure sensor and the liquid addition pump.

[0017] Further, the first switch valve is electrically connected to the controller;

[0018] A weighing sensor is arranged on the weighing bucket, and the weighing sensor is used to sense the mass of the weighing bucket;

[0019] The weighing sensor is electrically connected to the controller. When the weighing sensor senses that the mass change of the weighing device reaches the set value, the controller controls the liquid addition pump to stop working and controls the first switching valve to close.

[0020] Furthermore, a second switching valve is included. The second switching valve is arranged on the second pipeline, and the second switching valve is electrically connected to the controller;

[0021] When the air compressor needs to work, the controller controls the second switching valve to open.

[0022] Furthermore, the second pipeline is connected to the first pipeline through a tee joint, and the second switching valve is arranged on the side close to the tee joint.

[0023] Furthermore, both the first switching valve and the second switching valve are pneumatic angle valves.

[0024] The first switching valve is a normally open pneumatic angle valve, and the second switching valve is a normally closed pneumatic angle valve. The pneumatic angle valve can control the flow of the fluid flexibly and accurately, further improving the accuracy of liquid additive addition.

[0025] During actual use, during the normal transportation of the liquid additive to the nozzle distribution device, the second switching valve is closed to prevent the liquid additive from entering the air compressor or remaining in the second pipeline; when the air compressor needs to work, the second switching valve is opened. Arranging the second switching valve on the side close to the tee joint can reduce the entry and retention of the liquid additive in the second pipeline.

[0026] During actual use, the controller is a PLC controller. The controller calculates through PID and opens the second switching valve in a timely manner, and atomizes and sprays the liquid with compressed air.

[0027] Furthermore, the nozzle distribution device includes a plurality of nozzles arranged in parallel.

[0028] Furthermore, the nozzle has a fan-shaped structure, and the fan-shaped nozzle is used to form a fan-shaped spray area.

[0029] Furthermore, the nozzle distribution device further includes a distribution pipe and a direction regulator,

[0030] The distribution pipe includes a large end communicated with the first pipeline and a plurality of branch pipes respectively communicated with the large end. The nozzle is installed on the branch pipe through the direction regulator, and the direction regulator is used to make the nozzle spray the additive at a specific angle.

[0031] Furthermore, a filter is included. The filter is arranged on the first pipeline and is located between the liquid addition pump and the weighing bucket.

[0032] The present application also provides a liquid additive injection system, which includes a reaction kettle and a liquid spraying and atomizing system. The liquid spraying and atomizing system includes the above anti-dripping liquid spraying and atomizing system; the nozzles of the nozzle distribution device are located inside the reaction kettle.

[0033] The beneficial effects of the present utility model are:

[0034] The liquid spraying and atomizing system provided by the present application, by setting a controller, an air compressor and a pressure sensor, makes the liquid spraying and atomizing system spray evenly during normal operation, and avoids the waste of liquid additives caused by the accumulation of liquid additives in the pipeline, the situation that the liquid additives flow out directly without atomization, affecting the addition effect and the product quality when the atomization spraying of liquid additives ends. Description of the Drawings

[0035] Figure 1 is a schematic diagram of the installation structure of the nozzle and the cut-off valve in the prior art;

[0036] Figure 2 is a schematic diagram of the structure of the liquid spraying and atomizing system according to the embodiment of the present utility model.

[0037] Each reference numeral in the drawings is as follows:

[0038] 1, nozzle; 2, cut-off valve; 10, controller; 20, weighing bucket; 30, pressure sensor; 40, liquid addition pump; 50, nozzle distribution device; 60, air compressor; 70, first pipeline; 80, second pipeline; 90, first switching valve; 100, second switching valve; 110, weighing sensor; 120, filter. Detailed Embodiments

[0039] The following will describe the present utility model in detail with reference to the drawings.

[0040] Embodiment 1

[0041] As Figure 2 shown, the present application provides an anti-dripping liquid spraying and atomizing system, including: a controller 10, a weighing bucket 20, a pressure sensor 30, a liquid addition pump 40, a nozzle distribution device 50, an air compressor 60, a first pipeline 70 and a second pipeline 80;

[0042] The weighing bucket 20 is used to store the liquid additives to be atomized and sprayed;

[0043] The nozzle distribution device 50 is communicated with the weighing bucket 20 through the first pipeline 70,

[0044] The liquid addition pump 40 is arranged on the first pipeline 70. The liquid addition pump 40 is electrically connected to the controller 10. The liquid addition pump 40 is used to pump the liquid additive to be atomized and sprayed from the weighing bucket 20 to the nozzle distribution device 50.

[0045] The pressure sensor 30 is arranged on the first pipeline 70 between the liquid addition pump 40 and the nozzle distribution device 50. The pressure sensor 30 is electrically connected to the controller 10. When the controller 10 detects that the pressure value of the pressure sensor 30 reaches the set value, the controller 10 controls and adjusts the frequency of the liquid addition pump 40 to control the pressure at which the liquid additive is ejected at the nozzle distribution device 50.

[0046] One end of the second pipeline 80 is connected to the air compressor 60, and the other end is communicated with the first pipeline 70. The connection between the second pipeline 80 and the first pipeline 70 is located between the pressure sensor 30 and the liquid addition pump 40. The air compressor 60 is electrically connected to the controller 10. The controller 10 is also used to control the air compressor 60 to work, so that the air compressor 60 conveys air into the nozzle distribution device 50 to participate in the atomization of the liquid additive.

[0047] Actually, during the process of the liquid addition pump 40 normally transporting the liquid additive to the nozzle distribution device 50, the pressure sensor 30 monitors the pressure of the pipeline at the nozzle distribution device 50 in real time. When the pressure value of the pressure sensor 30 reaches the set value, the controller 10 controls and adjusts the frequency of the liquid addition pump 40 to control the pressure at which the liquid additive is ejected at the nozzle distribution device 50, so that the liquid additive at the nozzle is ejected in a high-pressure state and forms a high-speed jet, and the jet forms atomization in the air.

[0048] Before the atomization spraying of the liquid additive is about to end and before the controller 10 controls the liquid addition pump 40 to close, the controller 10 controls the air compressor 60 to work, so that the air compressor 60 conveys air into the nozzle distribution device 50 to participate in the atomization of the liquid additive. After the liquid addition pump 40 is closed, the air compressor 60 continues to work to atomize and eject the liquid additive stored in the pipeline, avoiding the accumulation of the liquid additive in the pipeline and the direct outflow of the liquid additive in a dripping manner without atomization.

[0049] That is, the liquid spraying atomization system provided by the present application, by setting the controller 10, the air compressor 60 and the pressure sensor 30, makes the liquid spraying atomization system spray evenly during normal operation, and avoids the situation of waste of the liquid additive caused by the accumulation of the liquid additive in the pipeline, the direct outflow of the liquid additive without atomization affecting the addition effect and the product quality when the atomization spraying of the liquid additive ends.

[0050] In this embodiment, a first switching valve 90 is further included. The first switching valve 90 is arranged on the first pipeline 70 and is arranged between the pressure sensor 30 and the liquid addition pump 40.

[0051] In this embodiment, the first switch valve 90 is electrically connected to the controller 10;

[0052] The weighing bucket 20 is provided with a weighing sensor 110, and the weighing sensor 110 is used to sense the mass of the weighing bucket 20;

[0053] The weighing sensor 110 is connected to the controller 10 by electrical signals. When the weighing sensor 110 senses that the mass change of the weighing device reaches a set value, the controller 10 controls the liquid adding pump 40 to stop working and controls the first switch valve 90 to close.

[0054] In this embodiment, a second switch valve 100 is further included. The second switch valve 100 is disposed on the second pipeline 80 and is electrically connected to the controller 10.

[0055] When the air compressor 60 is required to work, the controller 10 controls the second switch valve 100 to open.

[0056] In this embodiment, the second pipeline 80 is connected to the first pipeline 70 via a three-way joint, and the second switch valve 100 is disposed on a side close to the three-way joint.

[0057] In this embodiment, the first switch valve 90 and the second switch valve 100 are both pneumatic angle valves.

[0058] The first switch valve 90 is a normally open pneumatic angle valve, and the second switch valve 100 is a normally closed pneumatic angle valve. The pneumatic angle valve can flexibly and accurately control the flow of the fluid, further improving the accuracy of adding liquid additives.

[0059] In actual use, when the liquid additive is normally delivered to the nozzle dispensing device 50, the second switch valve 100 is closed to prevent the liquid additive from entering the air compressor 60 or remaining in the second pipeline 80; when the air compressor 60 is required to work, the second switch valve 100 is opened. Placing the second switch valve 100 close to one side of the three-way connector can reduce the liquid additive from entering and remaining in the second pipeline 80.

[0060] In actual use, the controller 10 is a PLC controller 10. The controller 10 opens the second switch valve 100 at an appropriate time through PID calculation, and uses compressed air to atomize the liquid and then spray it out.

[0061] In this embodiment, the nozzle distribution device 50 includes a plurality of nozzles arranged in parallel.

[0062] In this embodiment, the nozzle is in a fan-shaped structure, and the nozzle in the fan-shaped structure is used to form a fan-shaped spray area.

[0063] In this embodiment, the nozzle distribution device 50 further includes a distribution pipe and a direction regulator.

[0064] The distribution pipe includes a large end communicating with the first pipeline 70 and a plurality of branch pipes respectively communicating with the large end. The nozzle is installed on the branch pipe through a direction regulator, and the direction regulator is used to spray the additive at a specific angle.

[0065] In this embodiment, a filter 120 is further included. The filter 120 is arranged on the first pipeline 70 and is located between the liquid addition pump 40 and the weighing bucket 20.

[0066] This application also provides a liquid additive dispensing system. The liquid additive dispensing system includes a reaction kettle and a liquid spraying and atomizing system. The liquid spraying and atomizing system includes the above-mentioned liquid spraying and atomizing system for preventing liquid dripping; the nozzle of the nozzle distribution device 50 is located inside the reaction kettle.

[0067] Embodiment 2

[0068] The difference between this embodiment and Embodiment 1 is that in this embodiment, the second pipeline is connected to the first pipeline through a three-way solenoid valve. The three-way solenoid valve is electrically connected to the controller, and the three-way solenoid valve replaces the first switching valve, the second switching valve and the three-way joint in Embodiment 1 to work.

[0069] Embodiment 3

[0070] The difference between this embodiment and Embodiment 1 is that in this embodiment, the liquid spraying and atomizing system further includes an air extraction device. The air extraction device is electrically connected to the controller and is connected to the nozzle distribution device. After the liquid addition pump stops working, the air extraction device works to extract the liquid additive in the pipeline to prevent the liquid additive from staying in the pipeline for a long time. Or, the air extraction device cooperates with an air compressor to extract the liquid additive in the pipeline.

[0071] The above are only the preferred embodiments of the present invention, and thus do not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention, directly or indirectly applied to other related technical fields, shall be included in the protection scope of the present invention by the same token.

Claims

1. A liquid spraying and atomizing system for preventing liquid dripping, characterized in that, Comprising: A weighing bucket, a pressure sensor, a liquid addition pump, a nozzle distribution device, an air compressor, a first pipeline, and a second pipeline; The nozzle distribution device is communicated with the weighing bucket through the first pipeline, The liquid addition pump is arranged on the first pipeline, and the pressure sensor is arranged on the first pipeline between the liquid addition pump and the nozzle distribution device; One end of the second pipeline is connected to the air compressor, and the other end is communicated with the first pipeline, and the connection point of the second pipeline and the first pipeline is located between the pressure sensor and the liquid addition pump.

2. The droplet-proof liquid spraying and atomizing system according to claim 1, characterized in that, It further includes a controller, and the controller is respectively electrically connected to the pressure sensor, the air compressor, and the liquid addition pump; When the controller detects that the pressure value of the pressure sensor reaches the set value, the controller controls and adjusts the frequency of the liquid addition pump to control the pressure of the liquid additive ejected at the nozzle distribution device; The liquid addition pump is used to pump the liquid additive to be atomized and sprayed from the weighing bucket to the nozzle distribution device; The controller is further used to control the air compressor to work, so that the air compressor transports air into the nozzle distribution device to participate in the atomization of the liquid additive.

3. The droplet-proof liquid spraying and atomizing system according to claim 2, wherein, It further includes a first switch valve, the first switch valve is electrically connected to the controller, the first switch valve is arranged on the first pipeline, and is arranged between the pressure sensor and the liquid addition pump; A weighing sensor is arranged on the weighing bucket, the weighing bucket is used to store the liquid additive to be atomized and sprayed, and the weighing sensor is used to sense the mass of the weighing bucket; The weighing sensor is electrically connected to the controller. When the weighing sensor senses that the mass change of the weighing device reaches the set value, the controller controls the liquid addition pump to stop working and controls the first switch valve to close.

4. The droplet-proof liquid spraying and atomizing system according to claim 3, characterized in that, It further includes a second switch valve, the second switch valve is arranged on the second pipeline, and the second switch valve is electrically connected to the controller; When the air compressor needs to work, the controller controls the second switch valve to open.

5. The liquid spraying and atomizing system for preventing liquid dripping according to claim 4, wherein The second pipeline is connected to the first pipeline through a three-way joint, and the second switch valve is arranged on the side close to the three-way joint.

6. The liquid spraying and atomizing system for preventing liquid dripping according to claim 4, wherein Both the first switch valve and the second switch valve are pneumatic angle valves.

7. The droplet-proof liquid spraying and atomizing system according to claim 1, wherein The nozzle distribution device includes a plurality of nozzles arranged in parallel.

8. The liquid spraying and atomizing system for preventing liquid dripping according to claim 7, wherein The nozzle has a fan-shaped structure, and the fan-shaped nozzle is used to form a fan-shaped spray area.

9. The droplet-proof liquid spraying and atomizing system according to claim 7, wherein, The nozzle distribution device further includes a distribution pipe and a direction regulator, The distribution pipe includes a large end communicated with the first pipeline and a plurality of branch pipes respectively communicated with the large end. The nozzles are installed on the branch pipes through the direction regulator, and the direction regulator is used to make the nozzles spray the additive at a specific angle.

10. The anti-drip liquid spraying and atomizing system according to claim 1, characterized in that, It further includes a filter, the filter is arranged on the first pipeline and is located between the liquid addition pump and the weighing bucket.

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