An electrically controlled diaphragm valve and beverage filling apparatus

Abstract

This utility model relates to the technical field of fluid control, and specifically discloses an electrically controlled diaphragm valve and a beverage filling equipment. The electrically controlled diaphragm valve includes a main valve and a pilot valve. The main valve includes a valve body and a valve core. The valve body is provided with a control gas inlet, a first channel, a cavity, a fluid inlet, and a fluid outlet. The valve core can move within the cavity to control the flow of fluid. The pilot valve is installed on the main valve and receives instructions through an electrical signal inlet. It selectively connects the first channel to the control gas inlet or the control gas outlet, thereby driving the valve core to move. By integrating the pilot valve into the main valve, the opening and closing of the main valve can be controlled through the pilot valve. Because it is integrated into the main valve, the response speed of the main valve can be effectively improved. It is suitable for high-frequency filling scenarios. The application of this electrically controlled diaphragm valve in beverage filling equipment can accurately control the flow of beverage fluid, improving filling efficiency and automation level.

Description

Technical Field

[0001] This utility model relates to the technical field of fluid control, and specifically to an electrically controlled diaphragm valve and beverage filling equipment. Background Technology

[0002] In automated production lines in industries such as beverage, food, and pharmaceuticals, pneumatic diaphragm valves are widely used for the on / off control of fluids (such as liquids and slurries) due to their simple structure, reliable sealing, and ease of cleaning. Conventional pneumatic diaphragm valves typically function through a main valve, and their actuation depends on the on / off control of an external control air source. Specifically, an independent pneumatic control pipeline is required to connect to the control air port of the main valve, and the on / off control of this pipeline is controlled by external pilot control elements such as solenoid valves, thereby driving the opening and closing of the main valve.

[0003] However, the above-mentioned traditional control methods have the following obvious drawbacks:

[0004] 1. Complex system structure and large space occupation: The entire control system requires additional independent pneumatic control circuits, including pilot solenoid valves, air pipes, connectors and other components. This decentralized layout leads to complicated piping and occupies a lot of installation space, especially in situations where multiple valves need to be densely arranged, the problem is particularly prominent.

[0005] 2. Slow response speed: Because the control air source needs to go through a long air pipe and multiple joints to reach the main valve, the air path volume is large, which leads to a longer inflation and deflation time. This results in a delay in the opening and closing of the main valve, affecting the timeliness and accuracy of the entire system control. Utility Model Content

[0006] This utility model addresses the aforementioned problems. Its purpose is to provide an electronically controlled diaphragm valve and a beverage filling device that integrates the pilot valve onto the main valve, thereby reducing the overall space required, improving response speed, and preventing beverage waste.

[0007] To achieve the above objectives, this utility model provides an electrically controlled diaphragm valve, including a main valve. The main valve includes a valve body and a valve core. The valve body is provided with a control air inlet, a first channel, a cavity, a fluid inlet, and a fluid outlet. The valve core is movably disposed within the cavity and can control the opening and closing of the fluid inlet and the fluid outlet. The first channel communicates with the cavity. The valve also includes:

[0008] A pilot valve is installed on the main valve, and the pilot valve is provided with an electrical signal inlet and a control gas outlet connected to the atmosphere;

[0009] The pilot valve is configured to selectively connect the first channel to the control gas inlet or the control gas outlet based on the signal received from the electrical signal inlet.

[0010] According to the above-described electrically controlled diaphragm valve, when the electrical signal inlet receives an opening signal, the pilot valve can control the first channel to connect with the control gas inlet.

[0011] According to the above-described electrically controlled diaphragm valve, when the electrical signal inlet receives a closing signal, the pilot valve can control the first channel to connect with the control gas outlet.

[0012] According to the above-described electrically controlled diaphragm valve, the pilot valve is configured as an electromagnetic pilot valve.

[0013] According to the above-described electrically controlled diaphragm valve, the valve core has a first position and a second position. When the valve core is in the first position, it cuts off the channel between the fluid inlet and the fluid outlet. When the valve core is in the second position, it opens the channel between the fluid inlet and the fluid outlet.

[0014] According to the above-described electrically controlled diaphragm valve, when the first channel is connected to the control gas inlet, the control gas can enter the cavity through the first channel and drive the valve core to move to the first position.

[0015] According to the above-described electrically controlled diaphragm valve, when the first channel is connected to the control gas outlet, the control gas in the cavity can be discharged through the first channel and the control gas outlet, so as to allow the valve core to move to the second position.

[0016] According to the above-described electrically controlled diaphragm valve, when the valve core is in the first position, the valve core is in contact with the fluid inlet and / or the fluid outlet to block the fluid inlet and / or the fluid outlet.

[0017] According to the above-described electrically controlled diaphragm valve, when the valve core is in the second position, the valve core is away from the fluid inlet and the fluid outlet to open the fluid inlet and the fluid outlet.

[0018] A beverage filling device, comprising:

[0019] The electrically controlled diaphragm valve described above is used to control the flow of beverage fluid.

[0020] This utility model has the following beneficial effects:

[0021] 1. The pilot valve is integrated into the main valve. The pilot valve can be controlled by an electrical signal to perform corresponding actions, thereby achieving the purpose of quickly adjusting the action of the main valve. The main valve has a fast response speed, reducing beverage leakage.

[0022] 2. Integrating the pilot valve into the main valve can save multiple interfaces and connecting pipes, thereby reducing costs and space requirements;

[0023] 3. The pilot valve is also equipped with a control gas outlet that is connected to the atmosphere, which facilitates the discharge of control gas from the main valve cavity. No additional exhaust structure is required, and the overall structure is simple. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall internal structure of the embodiment;

[0025] Figure 2 This is a schematic diagram of the overall structure from the back of the embodiment.

[0026] In the picture:

[0027] 100. Main valve; 110. Valve body; 111. Control air inlet; 112. First channel; 113. Cavity; 114. Fluid inlet; 115. Fluid outlet; 120. Valve core;

[0028] 200, Pilot valve; 210, Electrical signal inlet. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] like Figure 1-2 As shown, an electrically controlled diaphragm valve includes a main valve 100 and a pilot valve 200, wherein the pilot valve 200 is used to control the main valve 100 to open or close, thereby controlling the flow of fluid.

[0031] Specifically, the main valve 100 includes a valve body 110 and a valve core 120. The valve body 110 is provided with a control air inlet 111, a first channel 112, a cavity 113, a fluid inlet 114, and a fluid outlet 115. The valve core 120 is movably disposed within the cavity 113 and can control the opening and closing of the fluid inlet 114 and the fluid outlet 115. The first channel 112 communicates with the cavity 113. A pilot valve 200 is installed on the main valve 100. The main valve 100 is equipped with a telemetry device. The pilot valve 200 is configured to selectively connect the first channel 112 to either the control gas inlet 111 or the control gas outlet based on a signal received from the electrical signal inlet 210. In this embodiment, the electrical signal inlet 210 of the pilot valve 200 can receive two types of electrical signals: an open signal and a close signal. When the electrical signal inlet 210 receives a close signal, the pilot valve 200 can control the control gas inlet 111. When connected to the first channel 112, control gas can enter the cavity 113 through the control gas inlet 111 and the first channel 112, and push the valve core 120 to move away from the first channel 112, thereby cutting off the channel between the fluid inlet 114 and the fluid outlet 115, thus stopping the beverage filling. When the electrical signal inlet 210 receives an opening signal, the pilot valve 200 can control the control gas outlet to connect with the first channel 112. At this time, the valve core 120 is impacted by the fluid at the fluid inlet 114, and the control gas in the cavity 113 is discharged into the atmosphere through the first channel 112 and the control gas outlet. Then the valve core 120 can move towards the side closer to the first channel 112 to open the channel between the fluid inlet 114 and the fluid outlet 115, allowing the beverage filling. Since the pilot valve 200 is directly integrated into the main valve 100, the two are closely fitted, the response speed is faster, and the beverage spillage is avoided. At the same time, the integration is high, the area occupied is reduced, and the cost is saved.

[0032] In this embodiment, both the fluid inlet 114 and the fluid outlet 115 are connected to a pipe. When the two are connected, the beverage can flow in from the fluid inlet 114 and flow out from the fluid outlet 115, thereby filling the beverage. When the two are disconnected, the beverage cannot flow out from the fluid outlet 115, and filling stops.

[0033] The valve body 110 is made of AISI 316L stainless steel to ensure its strength and prevent beverage corrosion. The diameters of the fluid inlet 114 and fluid outlet 115 on the valve body 110 can be selected according to actual needs.

[0034] The valve core 120 includes a diaphragm, a valve stem, and a seal. The diaphragm is made of an elastic material, such as NBR (nitrile rubber), FKM (fluororubber), or silicone rubber, which has good corrosion resistance and fatigue resistance. The working temperature range of the diaphragm can reach -20℃ to +180℃, and the working pressure range can reach 0.4-0.8MPa. The valve stem is connected to the diaphragm and transmits the actuating force. The end of the valve stem is provided with a sealing surface, which forms a sealing pair with the fluid inlet 114 and / or the fluid outlet 115. The sealing surface can be made of metal or hard alloy material to ensure the reliability of the seal. The left side of the valve core 120 forms a control air chamber with the left side of the cavity 113, and the right side contacts the fluid flow path.

[0035] The pilot valve 200 can be fixed to the valve cover of the main valve 100 via threaded or flanged connection. The pilot valve 200 is an electromagnetic pilot valve, including an electromagnetic coil and a magnetic core. When the electromagnetic coil is energized, it generates a magnetic field that drives the magnetic core to move, changing the gas passage. The pilot valve 200 can adopt a two-position two-way or two-position three-way structure to meet different control requirements. The use of an electromagnetic pilot valve 200 can greatly improve its response speed, further improving the response speed of the main valve 100. The electrical signal inlet 210 of the pilot valve 200 can accept DC24V or AV220V signals. By adjusting the response speed of the pilot valve 200, the opening and closing time of the main valve 100 can be controlled, thereby achieving stable flow control and avoiding water hammer. Especially in beverage filling applications, when precise control of the filling volume is required, the valve opening time can be adjusted by controlling the signal pulse width.

[0036] Furthermore, the valve core 120 has a first position and a second position. When the valve core 120 is in the first position, it cuts off the passage between the fluid inlet 114 and the fluid outlet 115. When the valve core 120 is in the second position, it opens the passage between the fluid inlet 114 and the fluid outlet 115. By controlling the impact of air and fluid, the valve core 120 can be switched between the first position and the second position. Only when it is in the second position can the beverage be filled normally.

[0037] Furthermore, when the first channel 112 is connected to the control gas inlet 111, the control gas can enter the cavity 113 through the first channel 112 and drive the valve core 120 to move to the first position. Here, the control gas refers to the control gas emitted by other external components, which is transmitted to the control gas inlet 111 through a pipeline. When the first channel 112 is connected to the control gas inlet 111, the control gas can enter the first channel 112 and the cavity 113, thereby pushing the valve core 120 to move to the right and drive it to move to the first position, closing the channel between the fluid inlet 114 and the fluid outlet 115.

[0038] Furthermore, when the first channel 112 is connected to the control gas outlet, the control gas in the cavity 113 can be discharged through the first channel 112 and the control gas outlet, thereby reducing the gas pressure on the left side of the cavity 113. When the valve core 120 is impacted from the right side, the valve core 120 moves to the left to allow the valve core 120 to move to the second position and open the channel between the fluid inlet 114 and the fluid outlet 115.

[0039] In this embodiment, when the valve core 120 is in the first position, the valve core 120 is in contact with the fluid inlet 114 and / or the fluid outlet 115 to block the fluid inlet 114 and / or the fluid outlet 115. When the valve core 120 is in the first position, there are three situations: First, the valve core 120 is in contact with the fluid inlet 114, restricting the flow of beverage from the fluid inlet 114, thereby achieving the purpose of isolating the fluid inlet 114 and the fluid outlet 115. Second, the valve core 120 is in contact with the fluid outlet 115, restricting the flow of beverage from the fluid outlet 115, which can achieve the purpose of isolating the fluid inlet 114 and the fluid outlet 115. Third, the valve core 120 is in contact with both the fluid inlet 114 and the fluid outlet 115, which can also achieve the purpose of isolating the fluid inlet 114 and the fluid outlet 115.

[0040] In this embodiment, when the valve core 120 is in the second position, the valve core 120 is away from the fluid inlet 114 and the fluid outlet 115 to open the fluid inlet 114 and the fluid outlet 115.

[0041] This utility model also claims protection for a beverage filling device. The electrically controlled diaphragm valve can be widely used in beverage filling equipment to control the flow of beverage fluid. In the filling equipment, the electrically controlled diaphragm valve is installed on the pipeline between the filling head and the beverage container. When the container reaches the filling position, the control system sends an opening signal to the electrical signal inlet 210, the valve opens, and the beverage enters from the fluid inlet 114 and flows out from the fluid outlet 115 into the container. When the filling amount reaches the set value, the control system sends a closing signal, the valve closes, and filling stops.

[0042] This utility model discloses an electrically controlled diaphragm valve and a beverage filling device. The electrically controlled diaphragm valve includes a main valve 100 and a pilot valve 200. The main valve 100 includes a valve body 110 and a valve core 120. The valve body 110 is provided with a control gas inlet 111, a first channel 112, a cavity 113, a fluid inlet 114, and a fluid outlet 115. The valve core 120 can move within the cavity 113 to control the flow of fluid. The pilot valve 200 is installed on the main valve 100 and receives commands through an electrical signal inlet 210. The pilot valve 200 is integrated into the main valve 100. The pilot valve 200 can control the opening and closing of the main valve 100. Because it is integrated into the main valve 100, the response speed of the main valve 100 can be effectively improved. It is suitable for high-frequency filling scenarios. When this electronically controlled diaphragm valve is used in beverage filling equipment, the flow of beverage fluid can be precisely controlled, improving filling efficiency and automation level.

[0043] The technical solution of this utility model has been described in detail above with reference to the accompanying drawings. The described embodiments are used to help understand the concept of this utility model. The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. An electrically controlled diaphragm valve, comprising a main valve, the main valve including a valve body and a valve core, the valve body having a control air inlet, a first channel, a cavity, a fluid inlet, and a fluid outlet, the valve core being movably disposed within the cavity and capable of controlling the opening and closing of the fluid inlet and the fluid outlet, the first channel communicating with the cavity, characterized in that, Also includes: A pilot valve is installed on the main valve, and the pilot valve is provided with an electrical signal inlet and a control gas outlet connected to the atmosphere; The pilot valve is configured to selectively connect the first channel to the control gas inlet or the control gas outlet based on the signal received from the electrical signal inlet.

2. The electrically controlled diaphragm valve according to claim 1, characterized in that, When the electrical signal inlet receives an opening signal, the pilot valve can control the first channel to connect with the control gas inlet.

3. The electrically controlled diaphragm valve according to claim 1, characterized in that, When the electrical signal inlet receives a shut-off signal, the pilot valve can control the first channel to connect with the control gas outlet.

4. An electrically controlled diaphragm valve according to claim 2 or 3, characterized in that, The pilot valve is configured as an electromagnetic pilot valve.

5. An electrically controlled diaphragm valve according to claim 1, characterized in that, The valve core has a first position and a second position. When the valve core is in the first position, it cuts off the channel between the fluid inlet and the fluid outlet. When the valve core is in the second position, it opens the channel between the fluid inlet and the fluid outlet.

6. The electrically controlled diaphragm valve according to claim 5, characterized in that, When the first channel is connected to the control gas inlet, the control gas can enter the cavity through the first channel and drive the valve core to move to the first position.

7. An electrically controlled diaphragm valve according to claim 5, characterized in that, When the first channel is connected to the control gas outlet, the control gas in the cavity can be discharged through the first channel and the control gas outlet, allowing the valve core to move to the second position.

8. An electrically controlled diaphragm valve according to claim 5, characterized in that, When the valve core is in the first position, the valve core is in contact with the fluid inlet and / or the fluid outlet to block the fluid inlet and / or the fluid outlet.

9. An electrically controlled diaphragm valve according to claim 5, characterized in that, When the valve core is in the second position, the valve core is away from the fluid inlet and the fluid outlet to open the fluid inlet and the fluid outlet.

10. A beverage filling device, characterized in that, include: The electronically controlled diaphragm valve as described in any one of claims 1-9 is used to control the flow of beverage fluid.

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