Liquid delivery device and liquid delivery system

Abstract

The utility model provides a liquid conveying device and a liquid conveying system, and relates to the field of food processing. The liquid conveying device comprises a liquid conveying assembly, a liquid emptying assembly and an air supply assembly, the liquid conveying assembly comprises a pneumatic diaphragm pump, a cylinder body and a first pipeline, the pneumatic diaphragm pump is connected with the cylinder body through the first pipeline, and the liquid emptying assembly comprises a second pipeline and a first switching piece. The first switching piece is arranged between the second pipeline and the first pipeline so as to control connection or disconnection of the second pipeline and the first pipeline, and the gas supply assembly is connected with the pneumatic diaphragm pump and supplies gas to the pneumatic diaphragm pump; by arranging the first switching piece, residual liquid in the first pipeline is emptied through the second pipeline, the residual liquid is prevented from corroding the first pipeline, meanwhile, the residual liquid can be prevented from entering the cylinder body, and the occurrence rate of food safety accidents is reduced.

Description

Technical Field

[0001] The present application relates to the field of food processing, and in particular to a liquid conveying device and a liquid conveying system. Background Art

[0002] At present, the ultra-high temperature instantaneous sterilizer uses a pneumatic diaphragm pump to transport the acidic cleaning liquid into the cylinder for sterilization and disinfection. When the sterilization is completed, the pneumatic diaphragm pump stops running. At this time, a large amount of acidic cleaning liquid will remain in the pipeline between the pneumatic diaphragm pump and the cylinder. On the one hand, the residual acidic cleaning liquid will remain in the pipeline for a long time and cause corrosion to the pipeline. On the other hand, in the non-sterilization stage, if an error operation occurs, the residual acidic cleaning liquid will enter the cylinder and cause a food safety accident. Utility Model Content

[0003] The purpose of the present application is to provide a liquid conveying device and a liquid conveying system. In the non-sterilization stage, the present application can exhaust the acidic cleaning liquid remaining between the pneumatic diaphragm pump and the cylinder body to ensure food safety.

[0004] In the first aspect, the utility model provides a liquid conveying device, which includes a liquid conveying component, a liquid emptying component and an air supply component, the liquid conveying component includes a pneumatic diaphragm pump, a cylinder body and a first pipeline, the pneumatic diaphragm pump is connected to the cylinder body through the first pipeline, the liquid emptying component includes a second pipeline and a first switching component, the first switching component is arranged between the second pipeline and the first pipeline to control the connection or disconnection of the second pipeline and the first pipeline, and the air supply component is connected to the pneumatic diaphragm pump and supplies gas to the pneumatic diaphragm pump.

[0005] In an optional embodiment, the air supply assembly includes a first air supply pipeline and a second air supply pipeline, the first air supply pipeline is connected to the pneumatic diaphragm pump, the second air supply pipeline is connected to the first switching component, and the second air supply pipeline and the first air supply pipeline are opened selectively.

[0006] In an optional embodiment, the air supply component also includes a main air supply pipeline, which is connected to the first air supply pipeline and the second air supply pipeline via a first switching valve, and the first switching valve selectively connects the first air supply pipeline and the second air supply pipeline.

[0007] In an optional embodiment, the main gas supply pipeline is provided with a manual valve, and the manual valve is normally open.

[0008] In an optional embodiment, the first air supply pipeline is provided with a throttle valve, and the throttle valve is used to adjust the air supply flow rate of the first air supply pipeline.

[0009] In an optional embodiment, the second air supply pipeline is provided with a second switching element, and the first switching element is arranged close to the second pipeline relative to the second switching element.

[0010] In an optional embodiment, the first switching element is configured as a pneumatic valve, and the second switching element is configured as a two-position five-way pneumatic control valve.

[0011] In an optional embodiment, the first pipeline is provided with a second switching valve, the second switching valve is provided with a liquid inlet, a first liquid outlet and a second liquid outlet, the liquid inlet is connected to the pneumatic diaphragm pump, the first liquid outlet is connected to the cylinder body, the second liquid outlet is connected to the first switching member, and the second liquid outlet and the first liquid outlet are opened selectively.

[0012] In an optional embodiment, the liquid delivery assembly further includes a liquid storage tank, and the liquid storage tank is connected to the pneumatic diaphragm pump.

[0013] In a second aspect, the utility model provides a liquid delivery system, comprising the liquid delivery device as described in the aforementioned embodiment.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] The present application uses a pneumatic diaphragm pump to transport liquid into the cylinder. When the pneumatic diaphragm pump stops running, the liquid remains in the first pipeline to form residual liquid. At this time, the present application sets a first switching component to empty the residual liquid in the first pipeline through the second pipeline, thereby preventing the residual liquid from corroding the first pipeline. At the same time, it can prevent the residual liquid from entering the cylinder, thereby reducing the incidence of food safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 Shows a schematic diagram of the connection of the liquid delivery device in some embodiments;

[0018] Figure 2 A flow chart showing the principle of use of the liquid delivery device in some embodiments.

[0019] Description of main component symbols:

[0020] 100-liquid delivery assembly; 110-pneumatic diaphragm pump; 120-cylinder body; 130-first pipeline; 131-second switching valve; 140-liquid storage tank; 200-liquid emptying assembly; 210-second pipeline; 220-first switching element; 300-air supply assembly; 310-first air supply pipeline; 311-throttle valve; 320-second air supply pipeline; 321-second switching element; 330-main air supply pipeline; 331-manual valve; 340-first switching valve. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] Embodiment 1

[0027] This embodiment is applicable to an ultra-high temperature instantaneous sterilizer, and solves the problem of residual acid cleaning liquid. It is understandable that this embodiment is also applicable to other equipment that needs to drain residual liquid, and this embodiment is not limited here.

[0028] See also Figure 1 This embodiment provides a liquid delivery device. Specifically, the liquid delivery device includes a liquid delivery component 100, a liquid emptying component 200 and an air supply component 300.

[0029] The liquid delivery assembly 100 includes a pneumatic diaphragm pump 110, a cylinder 120 and a first pipeline 130, wherein the pneumatic diaphragm pump 110 is connected to the cylinder 120 via the first pipeline 130. The pneumatic diaphragm pump 110 is activated by compressed air to generate extraction power, the cylinder 120 is a balance cylinder, and the first pipeline 130 is configured as a hose.

[0030] For ease of description and understanding, in this embodiment, after the pneumatic diaphragm pump 110 is started, the pneumatic diaphragm pump 110 extracts the acidic cleaning liquid and transports the acidic cleaning liquid into the cylinder 120 through the first pipeline 130, thereby cleaning and sterilizing the cylinder 120 and subsequent components of the cylinder 120.

[0031] When the sterilization is completed, the pneumatic diaphragm pump 110 stops running. At this time, the acidic cleaning liquid remaining in the first pipeline 130 is defined as residual liquid. Since the residual liquid is acidic in nature, the residual liquid remaining in the first pipeline for a long time will cause corrosion to the first pipeline. In addition, during the non-sterilization stage, the cylinder body 120 is undergoing food processing. If the pneumatic diaphragm pump 110 is started by mistake, the residual liquid will enter the cylinder body 120, causing food contamination to the cylinder body 120 and causing a food safety accident.

[0032] Therefore, after the sterilization is completed, the present embodiment needs to drain the residual liquid, so as to prevent the residual liquid from entering the cylinder 120 and maintain the safety of food processing.

[0033] The first pipeline 130 is provided with a second switching valve 131, and the second switching valve 131 is provided with a liquid inlet, a first liquid outlet and a second liquid outlet. The liquid inlet is always connected with the pneumatic diaphragm pump 110, the first liquid outlet is connected with the cylinder body 120, and the second liquid outlet and the first liquid outlet are opened alternately.

[0034] Specifically, the second switching valve 131 is configured as a three-way valve, which has the function of switching connectivity. In the sterilization stage, the acidic cleaning liquid enters the cylinder body 120 from the pneumatic diaphragm pump 110 through the first liquid outlet for sterilization and disinfection. In the non-sterilization stage, the residual acidic cleaning liquid (i.e., residual liquid) is output from the second liquid outlet.

[0035] Furthermore, the liquid delivery assembly 100 further includes a liquid storage tank 140 , which is connected to the pneumatic diaphragm pump 110 and is used to store the acid cleaning liquid.

[0036] The liquid emptying assembly 200 includes a second pipeline 210 and a first switching element 220 . The first switching element 220 is disposed between the second pipeline 210 and the first pipeline 130 to control the connection or disconnection between the second pipeline 210 and the first pipeline 130 .

[0037] In this embodiment, the first switching element 220 has two states. In the sterilization stage, the first switching element 220 is in a closed state, and the second pipeline 210 and the first pipeline 130 are cut off. In the non-sterilization stage, the first switching element 220 is in an open state, and the second pipeline 210 and the first pipeline 130 are connected. The residual liquid is discharged from the second liquid outlet and then discharged through the second pipeline 210.

[0038] The first switching element 220 can be configured as a solenoid valve or a pneumatic valve. If the first switching element 220 is configured as a solenoid valve, the first switching element 220 is controlled to be opened or closed by a controller. If the first switching element 220 is configured as an air-controlled valve, the first switching element 220 is controlled to be opened or closed by compressed air.

[0039] In actual use, since the pneumatic diaphragm pump 110 of this embodiment is started by compressed air, in order to reduce configuration costs and simplify control operations, this embodiment configures the first switching element 220 as a 90-degree pneumatic valve, and controls the opening or closing of the first switching element 220 by compressed air.

[0040] In this embodiment, the first switching member 220 is connected to the second switching valve 131 via a flat joint.

[0041] The air supply component 300 is connected to the pneumatic diaphragm pump 110 and supplies gas to the pneumatic diaphragm pump 110. If the first switching component 220 is configured as a 90-degree air-controlled valve, the air supply component 300 is also connected to the first switching component 220, and the air supply component 300 supplies compressed air to the pneumatic diaphragm pump 110 and the first switching component 220 selectively.

[0042] Specifically, the air supply assembly 300 includes a first air supply pipeline 310 and a second air supply pipeline 320, and the second air supply pipeline 320 and the first air supply pipeline 310 are opened alternately. When the first air supply pipeline 310 is opened, the second air supply pipeline 320 is in a closed state, and when the second air supply pipeline 320 is opened, the first air supply pipeline 310 is in a closed state.

[0043] Among them, the first air supply pipeline 310 is connected to the pneumatic diaphragm pump 110, and the first air supply pipeline 310 provides compressed air to the pneumatic diaphragm pump 110, thereby starting the pneumatic diaphragm pump 110. When the first air supply pipeline 310 stops providing compressed air to the pneumatic diaphragm pump 110, the pneumatic diaphragm pump 110 stops running.

[0044] The second air supply pipeline 320 is connected to the first switching component 220, and the second air supply pipeline 320 provides compressed air to the first switching component 220, and the first switching component 220 switches from a closed state to an open state. When the second air supply pipeline 320 stops providing compressed air to the first switching component 220, the first switching component 220 switches from an open state to a closed state.

[0045] In the sterilization stage, the first air supply pipeline 310 is opened and the second air supply pipeline 320 is closed, and the acidic cleaning liquid enters the cylinder body 120 from the pneumatic diaphragm pump 110 through the first pipeline 130. In the non-sterilization stage, the first air supply pipeline 310 is closed and the second air supply pipeline 320 is opened, and the residual liquid is discharged from the first pipeline 130 through the first switching element 220 and the second pipeline 210.

[0046] Furthermore, the first gas supply pipeline 310 is provided with a throttle valve 311, which is used to adjust the gas supply flow of the first gas supply pipeline 310. The operator can adjust the gas supply flow in real time according to the actual sterilization and cleaning conditions, thereby adjusting the extraction flow of the acidic cleaning liquid to meet the sterilization and cleaning needs.

[0047] The second air supply pipeline 320 is provided with a second switching element 321, and the first switching element 220 is arranged close to the second pipeline 210 relative to the second switching element 321. Similarly, the second switching element 321 can be configured as a solenoid valve or an air-controlled valve. Since the present embodiment is provided with a compressed air source, the second switching element 321 is configured as a two-position five-way air-controlled valve to save costs.

[0048] The second switching element 321 includes an air inlet section P port, execution ends A and B ports, exhaust ends R and S and an air control part. The two-position means that the second switching element 321 has two states, and the five-position means that there are five air holes on the valve body. The P port is connected to a compressed air source, and the A port obtains air pressure. When the Z air control valve obtains air pressure and flows from the P port to the B port, the A port is in a closed state.

[0049] The air supply assembly 300 also includes a main air supply pipeline 330 , which is connected to the first air supply pipeline 310 and the second air supply pipeline 320 via a first switching valve 340 , and the first switching valve 340 selectively connects the first air supply pipeline 310 and the second air supply pipeline 320 .

[0050] Specifically, the first switching valve 340 is configured as a three-way valve. In the sterilization stage, compressed air enters from the main air supply line 330 to the first air supply line 310, thereby supplying compressed air to the pneumatic diaphragm pump 110. In the non-sterilization stage, the first switching valve 340 is adjusted, and compressed air enters from the main air supply line 330 to the second air supply line 320, thereby supplying compressed air to the second switching element 321 and the first switching element 220.

[0051] In some embodiments, the first switching valve 340 does not have the function of adjusting the flow direction of compressed air. At this time, the throttle valve 311 can replace the first switching valve 340 to adjust the flow direction of compressed air. When compressed air is needed to enter the first air supply pipeline 310, the throttle valve 311 is opened and the flow rate can be adjusted according to the situation. When compressed air is not needed to enter the first air supply pipeline 310, the throttle valve 311 can be closed.

[0052] The main air supply pipeline 330 is provided with a manual valve 331, which is normally open and arranged at the front end of the second switching valve 131. In the case where the present embodiment is not started for a long time, the delivery of compressed air can be blocked by closing the manual valve 331 to save energy.

[0053] See also Figure 1 and Figure 2 Based on the above content, the use principle of the liquid delivery device is further described in this embodiment as follows:

[0054] S100. Open the manual valve 331 and let in compressed air;

[0055] S200. Adjust the first switching valve 340 so that the compressed air enters the first air supply pipeline 310 from the main air supply pipeline 330;

[0056] S300. According to the actual situation, adjust the flow rate of the throttle valve 311;

[0057] S400. Compressed air enters the pneumatic diaphragm pump 110, thereby starting the pneumatic diaphragm pump 110;

[0058] S500. Adjust the second switching valve 131, the pneumatic diaphragm pump 110 extracts the acid cleaning liquid in the liquid storage tank 140, and the acid cleaning liquid is transported from the first pipeline 130 to the cylinder 120 for sterilization;

[0059] S600. After the sterilization is completed, adjust the first switching valve 340 so that the compressed air enters the second air supply pipeline 320 from the main air supply pipeline 330;

[0060] S700. Compressed air enters the second switching element 321 and the first switching element 220 in sequence, thereby opening the second switching element 321 and the first switching element 220, adjusting the second switching valve 131, and transporting the residual liquid from the first pipeline 130 to the second pipeline 210.

[0061] S800. After the residual liquid is drained, close the manual valve 331.

[0062] Embodiment 2

[0063] See also Figure 1 This embodiment provides a liquid delivery system, and the liquid delivery system includes the liquid delivery device of embodiment one.

[0064] Furthermore, the liquid delivery system also includes a residual liquid collection tank, which is connected to the second pipeline 210. When the residual liquid is discharged from the second pipeline 210, since the residual liquid is an acidic cleaning liquid with corrosive and polluting properties, the residual liquid needs to be collected for unified treatment after collection.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0066] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A liquid delivery device, characterized in that: It includes a liquid conveying component, a liquid emptying component and an air supply component, the liquid conveying component includes a pneumatic diaphragm pump, a cylinder body and a first pipeline, the pneumatic diaphragm pump is connected to the cylinder body through the first pipeline, the liquid emptying component includes a second pipeline and a first switching component, the first switching component is arranged between the second pipeline and the first pipeline to control the connection or disconnection of the second pipeline and the first pipeline, and the air supply component is connected to the pneumatic diaphragm pump and supplies gas to the pneumatic diaphragm pump.

2. The liquid delivery device according to claim 1, characterized in that: The air supply assembly includes a first air supply pipeline and a second air supply pipeline, the first air supply pipeline is connected to the pneumatic diaphragm pump, the second air supply pipeline is connected to the first switching component, and the second air supply pipeline and the first air supply pipeline are opened alternately.

3. The liquid delivery device according to claim 2, characterized in that: The air supply assembly also includes a main air supply pipeline, which is connected to the first air supply pipeline and the second air supply pipeline via a first switching valve, and the first switching valve selectively connects the first air supply pipeline and the second air supply pipeline.

4. The liquid delivery device according to claim 3, characterized in that: The main gas supply pipeline is provided with a manual valve, and the manual valve is normally open.

5. The liquid delivery device according to any one of claims 2 to 4, characterized in that: The first air supply pipeline is provided with a throttle valve, and the throttle valve is used to adjust the air supply flow of the first air supply pipeline.

6. The liquid delivery device according to any one of claims 2 to 4, characterized in that: The second gas supply pipeline is provided with a second switching component, and the first switching component is arranged relative to the second switching component and close to the second pipeline.

7. The liquid delivery device according to claim 6, characterized in that: The first switching element is configured as a pneumatic valve, and the second switching element is configured as a 2 / 5-way pneumatic control valve.

8. The liquid delivery device according to any one of claims 1 to 4, characterized in that: The first pipeline is provided with a second switching valve, and the second switching valve is provided with a liquid inlet, a first liquid outlet and a second liquid outlet, the liquid inlet is connected to the pneumatic diaphragm pump, the first liquid outlet is connected to the cylinder body, the second liquid outlet is connected to the first switching component, and the second liquid outlet and the first liquid outlet are opened selectively.

9. The liquid delivery device according to any one of claims 1 to 4, characterized in that: The liquid delivery assembly also includes a liquid storage tank, which is connected to the pneumatic diaphragm pump.

10. A liquid delivery system, characterized in that: Comprising a liquid delivery device as claimed in any one of claims 1 to 9.

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