A pipeline system for a plunger filling machine and its cleaning method

Abstract

The present invention discloses a pipeline system of a plunger filling machine and a cleaning method thereof. The pipeline system of the plunger filling machine includes a filling tank, a plunger filling valve, a reflux tank, pipelines, a reflux system, and an emptying device. For the pipeline system with such a structure, it can respectively clean the interior of the plunger filling valve at various parts, effectively cleaning various parts and interfaces of the plunger filling valve, avoiding the existence of sanitary dead corners inside the plunger filling valve, thus greatly improving the cleaning effect. On the basis of meeting the filling requirements, it is convenient to clean the interior of the pipeline system and ensure the cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of filling machines, and in particular to a pipeline system of a plunger filling machine and a cleaning method thereof. Background Art

[0002] In the process of beverage production, it is necessary to use a plunger filling machine to fill beverages into containers. When the production is completed, the entire material cylinder and filling valve need to be cleaned by CIP to maintain good hygiene. However, there are many sanitary dead corners in the plunger filling valve of the plunger filling machine, and the existing cleaning process is difficult to effectively clean the plunger filling valve, especially the piston seal. Summary of the Invention

[0003] The purpose of the present invention is to provide a pipeline system of a plunger filling machine and a cleaning method thereof, which can not only fill but also effectively clean the plunger filling machine.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] On the one hand, a pipeline system of a plunger filling machine is provided, including:

[0006] A filling tank, the bottom of the filling tank has a reflux port and a discharge port, and a first cleaning spray ball is arranged in the upper part of the inner cavity of the filling tank;

[0007] A plunger filling valve, having an input port and a first output port, a second output port and a third output port selectively communicated with the input port respectively, the discharge port is communicated with the input port, and the third output port is used for filling liquid into an external container;

[0008] A reflux tank, the upper part of the inner cavity of the reflux tank is provided with a second cleaning spray ball;

[0009] A pipeline, the pipeline includes a feed pipe and a reflux pipe and a drain pipe selectively communicated with the feed pipe respectively, the first output port and the second output port are selectively communicated with the inside of the reflux tank through the reflux pipe, the reflux pipe connects the reflux port and the reflux tank, a total inlet is arranged on the feed pipe, the total inlet is used for inputting the liquid, one end of the feed pipe far from the total inlet extends into the inner cavity of the filling tank, and the first cleaning spray ball and the second cleaning spray ball are both selectively communicated with the feed pipe;

[0010] A reflux system, the reflux system includes a circulation pump, the drain pipe and the reflux tank are both connected to the circulation pump, and the circulation pump can pump the liquid inside the reflux tank and the drain pipe to a designated position;

[0011] A drain device, the drain device is selectively communicated with the drain pipe and is used for discharging the liquid inside the drain pipe.

[0012] As a preferred technical solution of the pipeline system of the plunger filling machine, the total inlet is selectively communicated with the return pipe and the drain pipe.

[0013] As a preferred technical solution of the pipeline system of the plunger filling machine, a first pipe is arranged between the first output port and the return pipe, a second pipe is arranged between the second output port and the return pipe, and one end of the first pipe far from the first output port and one end of the second pipe far from the second output port are both connected to the return pipe through an annular pipe.

[0014] As a preferred technical solution of the pipeline system of the plunger filling machine, one end of the feed pipe extending into the filling tank forms a filling inlet, and the filling inlet is located below the first cleaning spray ball.

[0015] As a preferred technical solution of the pipeline system of the plunger filling machine, the filling tank and the return tank are both connected with a vent pipe, and the vent pipe communicates the inside and the outside of the filling tank and / or the return tank.

[0016] As a preferred technical solution of the pipeline system of the plunger filling machine, a control valve is arranged on the vent pipe, and the control valve can close or open the vent pipe.

[0017] As a preferred technical solution of the pipeline system of the plunger filling machine, a control valve is arranged in each branch of the return pipe, the feed pipe and the drain pipe, and the control valve can close or open the branch.

[0018] As a preferred technical solution of the pipeline system of the plunger filling machine, a liquid level detector is arranged in the inner cavity of the filling tank and / or the inner cavity of the return tank.

[0019] As a preferred technical solution of the pipeline system of the plunger filling machine, a dummy cup is arranged at the third output port where the plunger filling valve is located, and the dummy cup is used to selectively block the third output port.

[0020] On the other hand, a cleaning method for the pipeline system of the plunger filling machine is also provided. The cleaning liquid is input into the interior of the pipeline system from the total inlet. After the cleaning liquid is sprayed from the first cleaning spray ball onto the inner wall of the filling tank, the cleaning liquid sequentially passes through the return port of the filling tank, the return tank and the circulation pump of the return system;

[0021] Input the cleaning liquid into the interior of the pipeline system from the total inlet. After inputting the cleaning liquid into the inner cavity of the filling tank from the feed pipe, pass the cleaning liquid successively through the discharge port of the filling tank, the input port and the first output port in the plunger filling valve, the annular pipe, the reflux tank, and the circulation pump of the reflux system;

[0022] Input the cleaning liquid into the interior of the pipeline system from the total inlet. After inputting the cleaning liquid into the inner cavity of the filling tank from the feed pipe, pass the cleaning liquid successively through the discharge port of the filling tank, the input port and the second output port in the plunger filling valve, the annular pipe, the reflux tank, and the circulation pump of the reflux system;

[0023] Input the cleaning liquid into the interior of the pipeline system from the total inlet. Pass the cleaning liquid successively through the annular pipe, the second output port and the input port in the plunger filling valve, the discharge port of the filling tank, the feed pipe, the reflux tank, and the circulation pump in the reflux system;

[0024] Input the cleaning liquid into the interior of the pipeline system from the total inlet. After spraying the cleaning liquid from the second cleaning spray ball onto the inner wall of the reflux tank, pass the cleaning liquid successively through the reflux tank and the circulation pump of the reflux system.

[0025] The beneficial effects of the present invention are as follows: For the pipeline system with such a structure, it can respectively clean the interior of the plunger filling valve at various parts, effectively clean various parts and interfaces of the plunger filling valve, avoid the existence of sanitary dead corners inside the plunger filling valve, thereby greatly improving the cleaning effect. On the basis of meeting the filling requirements, it is convenient to clean the interior of the pipeline system and ensure the cleaning effect. Description of the Drawings

[0026] The following further elaborates on the present invention in detail according to the drawings and embodiments.

[0027] Figure 1 It is the overall schematic diagram of the pipeline system of the plunger filling machine described in the embodiment.

[0028] Figure 2 It is Figure 1 the enlarged view of part A in

[0029] Figure 3 It is the structural diagram of the plunger filling valve described in the embodiment.

[0030] In the figure:

[0031] 1. Filling tank; 2. Reflux tank; 3. First cleaning spray ball; 4. Second cleaning spray ball; 5. Feed pipe; 6. Reflux pipe; 7. Drain pipe; 8. Plunger filling valve; 801. Input port; 802. First output port; 803. Second output port; 804. Third output port; 805. False cup; 9. First pipe; 10. Second pipe; 11. Annular pipe;

[0032] Control valves: AV01, AV02, AV03, AV04, AV05, AV06, AV07, AV08, AV09,, MV01, MV02;

[0033] Liquid level detectors: LT01, LT02. Detailed implementation mode

[0034] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0035] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected" and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0037] As Figures 1 to 3 shown, Figure 1The arrow indicates the transmission direction of the liquid. The present invention provides a pipeline system for a plunger filling machine, which can facilitate the cleaning of the pipeline system on the basis of filling materials, is conducive to maintaining the cleanliness of the pipeline system of the plunger filling machine, and avoids the contamination of the filled materials. Among them, the pipeline system of the plunger filling machine includes a filling tank 1, a plunger filling valve 8, a reflux tank 2, pipelines, a reflux system, and a drainage device. The bottom of the filling tank 1 has a reflux port and a discharge port. A first cleaning spray ball 3 is arranged in the upper part of the inner cavity of the filling tank 1. The first cleaning spray ball 3 is mainly used to spray cleaning liquid onto the inner wall of the filling tank 1 to clean the inner wall of the filling tank 1. The plunger filling valve 8 has an input port 801 (i.e., interface a) and a first output port 802 (i.e., interface b), a second output port 803 (i.e., interface c), and a third output port 804 (i.e., interface d) that are selectively communicated with the input port 801 respectively. The discharge port is communicated with the input port 801, and the third output port 804 is used to fill the liquid into an external container. A second cleaning spray ball 4 is arranged in the upper part of the inner cavity of the reflux tank 2. The second cleaning spray ball 4 is mainly used to spray cleaning liquid onto the inner wall of the reflux tank 2 to clean the inner wall of the reflux tank 2. The pipeline includes a feed pipe 5 and a reflux pipe 6 and a drainage pipe 7 that are selectively communicated with the feed pipe 5 respectively. The first output port 802 and the second output port 803 are selectively communicated with the inside of the reflux tank 2 through the reflux pipe 6. The reflux pipe 6 connects the reflux port and the reflux tank 2. A total inlet is arranged on the feed pipe 5, and the total inlet is used to input liquid. One end of the feed pipe 5 far from the total inlet extends into the inner cavity of the filling tank 1. Both the first cleaning spray ball 3 and the second cleaning spray ball 4 are selectively communicated with the feed pipe 5. The reflux system includes a circulation pump. Both the drainage pipe 7 and the reflux tank 2 are connected to the circulation pump. The circulation pump can pump the liquid inside the reflux tank 2 and the drainage pipe 7 to a designated position. The drainage device is selectively communicated with the drainage pipe 7 and is used to drain the liquid inside the drainage pipe 7.

[0038] Liquid can be input into the interior of the pipeline system at the main inlet. For example, materials to be filled, cleaning liquid, heat-conducting liquid, etc. can be input into the interior of the pipeline system at the main inlet, so as to fill the materials, clean the interior of the pipeline system with the cleaning liquid, or preheat the interior of the pipeline system with the heat-conducting liquid. It can be understood that for some materials with temperature requirements for filling, before filling the materials, a heat-conducting liquid with a certain temperature needs to be passed into the interior of the pipeline system, so that the heat-conducting liquid can preheat the interior of the pipeline system to a certain temperature, and then the filling operation of the materials can be carried out. In this embodiment, a first cleaning spray ball 3 is arranged in the upper part of the inner cavity of the filling tank 1, and a second cleaning spray ball 4 is arranged in the upper part of the inner cavity of the reflux tank 2. Since both the first cleaning spray ball 3 and the second cleaning spray ball 4 are selectively communicated with the feed pipe 5, the cleaning liquid inside the feed pipe 5 can be sprayed from the first cleaning spray ball 3 and the second cleaning spray ball 4 onto the inner wall of the filling tank 1 and the inner wall of the reflux tank 2 respectively, so as to clean the inner walls of the filling tank 1 and the reflux tank 2. The reflux system is used to realize the reflux of the cleaning liquid. The circulating pump can pump the cleaning liquid inside the reflux tank 2 and the drain pipe 7 to a specified position. For example, the cleaning liquid inside the reflux tank 2 and the drain pipe 7 is pumped into the liquid temporary storage tank, and then the cleaning liquid inside the temporary storage tank is re-input into the pipeline system from the main inlet by external equipment, so as to realize the recycling of the cleaning liquid and effectively improve the utilization rate of the cleaning liquid. The draining device can directly discharge the liquid inside the drain pipe 7 to the outside of the pipeline system, avoiding the influence of liquid remaining in the pipeline on the use of the pipeline system. The first output port 802 and the second output port 803 of the plunger filling valve 8 are communicated with the interior of the reflux tank 2 through the reflux pipe 6. The cleaning liquid is input into the feed pipe 5 from the main inlet and is conveyed to the interior of the filling tank 1 along the extending direction of the feed pipe 5. After the input port 801 of the plunger filling valve 8 is communicated with the first output port 802, the cleaning liquid can pass through the input port 801 and the first output port 802 in sequence from the discharge port, so as to clean the first output port 802 and the channel located between the input port 801 and the first output port 802; after the input port 801 of the plunger filling valve 8 is communicated with the second output port 803, the cleaning liquid can pass through the input port 801 and the second output port 803 in sequence from the discharge port, so as to clean the second output port 803 and the channel located between the input port 801 and the second output port 803; after the input port 801 of the plunger filling valve 8 is communicated with the third output port 804, the cleaning liquid can pass through the input port 801 and the third output port 804 in sequence from the discharge port, so as to clean the third output port 804 and the channel located between the output port and the third output port 804.The pipeline system of this structure can clean each part inside the plunger filling valve 8 respectively, effectively cleaning each part and interface of the plunger filling valve 8, avoiding the existence of sanitary dead corners inside the plunger filling valve 8, thus greatly improving the cleaning effect. On the basis of meeting the filling requirements, it is convenient to clean the inside of the pipeline system and ensure the cleaning effect.

[0039] As a preferred solution, the total inlet is selectively communicated with the reflux pipe 6 and the drain pipe 7. In this embodiment, a control valve AV08 is provided at the part of the reflux pipe 6 between the reflux port and the reflux tank 2 to open or close the reflux pipe 6 by using this control valve AV08. A control valve MV01 is provided at the part of the drain pipe 7 between the total inlet and the drain device to open or close the drain pipe 7 by using this control valve MV01. The cleaning liquid is made to flow through the first output port 802 and the input port 801 of the plunger filling valve 8 in sequence through the reflux pipe 6, and the cleaning liquid is made to flow through the second input port 801 and the input port 801 of the plunger filling valve 8 in sequence, so as to reversely clean the channels between the input port 801 and the first output port 802 and between the input port 801 and the second output port 803 of the plunger filling valve 8 respectively. The pipeline system of this structure can clean the internal channels of the plunger filling valve 8 forward and reversely respectively, which is further beneficial to improving the cleaning effect of the pipeline system.

[0040] A first pipe 9 is provided between the first output port 802 and the reflux pipe 6, a second pipe 10 is provided between the second output port 803 and the reflux pipe 6, and one end of the first pipe 9 far from the first output port 802 and one end of the second pipe 10 far from the second output port 803 are both connected to the reflux pipe 6 through an annular pipe 11. The first output port 802 and the second output port 803 of the plunger filling valve 8 are communicated with the reflux tank 2 through the annular pipe 11.

[0041] In this embodiment, the pipeline system includes two plunger filling valves 8, and the two plunger filling valves 8 are respectively located at intervals below the filling tank 1. Of course, in other embodiments, the specific number of the plunger filling valves 8 can also be flexibly set according to needs, for example, the number of the plunger filling valves 8 can be set to one, three or four, etc.

[0042] In another embodiment, refer to Figure 1, one end of the feed pipe 5 extends into the filling tank 1 to form a filling inlet, and the filling inlet is located below the first cleaning spray ball 3, so that the filling inlet is arranged close to the bottom of the filling tank 1. On the one hand, when filling operations are carried out, the risk of material splashing onto the side wall of the filling tank 1 due to the too high height of the filling inlet is reduced; on the other hand, the distance between the filling inlet and the bottom of the filling tank 1 is shortened. When the internal passage of the plunger filling valve 8 is reversely cleaned, after the cleaning liquid is discharged from the input port 801 of the plunger filling valve 8 into the filling tank 1, the cleaning liquid can enter the inside of the feed pipe 5 from the filling inlet, so that the cleaning liquid is reversely output inside the feed pipe 5 to the inside of the reflux tank 2 or the drain pipe 7.

[0043] In order to keep the air pressures in the filling tank 1 and the reflux tank 2 consistent with the atmospheric pressure, both the filling tank 1 and the reflux tank 2 are connected with vent pipes, and the vent pipes communicate the inside and the outside of the filling tank 1 and / or the reflux tank 2. In this embodiment, the pipeline system includes two vent pipes, one of which is connected to the filling tank 1 and the other is connected to the reflux tank 2. One end of the vent pipe is connected to the filling tank 1 or the reflux tank 2, and the other end extends outside the filling tank 1 or the reflux tank 2 to communicate with the atmosphere to form a breathing port. A control valve is arranged on the vent pipe, and the control valve can close or open the vent pipe for convenient use.

[0044] A control valve is arranged in each branch of the reflux pipe 6, the feed pipe 5 and the drain pipe 7, and the control valve can close or open the branch. By closing or opening the branch through the control valve, the pipeline system can realize the functions of filling, cleaning or preheating.

[0045] In this embodiment, the circulation pump is connected to the reflux tank 2 through a connecting pipe, and the drain pipe 7 and the connecting pipe are selectively communicated through a control valve MV02.

[0046] It should be noted that each control valve in the pipeline system of the plunger filling machine can be selected as a pneumatic globe valve or a pneumatic butterfly valve or a manual ball valve according to needs, and the type of the control valve is not specifically limited herein.

[0047] In this embodiment, liquid level detectors LT01 and LT02 are respectively arranged in the inner cavities of the filling tank 1 and the reflux tank 2, and the liquid level detectors LT01 and LT02 are used to respectively detect the liquid level heights in the inner cavities of the filling tank 1 and the reflux tank 2.

[0048] Among them, with reference to Figure 3, a dummy cup 805 is provided at the third outlet 804 of the plunger filling valve 8. The dummy cup 805 is used to selectively block the third outlet 804. The dummy cup 805 is detachably connected to the plunger filling valve 8. Connect the dummy cup 805 to the plunger filling valve 8 to block the third outlet 804. Remove the dummy cup 805 from the plunger filling valve 8 to communicate the third outlet 804 with the outside. Specifically, the plunger filling valve 8 is controlled by a control unit and the dummy cup 805 to realize the on-off of the input port 801 - the first output port 802, the input port 801 - the second output port 803, and the input port 801 - the third output port 804.

[0049] The working conditions that can be achieved by the pipeline system of the plunger filling machine of the present invention include: stop (i.e., STOP), filling, preheating, cleaning, and emptying. These working conditions ensure effective cleaning inside the pipeline system on the basis of filling materials.

[0050] Specifically, when stopping (i.e., STOP), all control valves in the pipeline system are closed, and when emptying, all control valves are opened;

[0051] When filling (i.e., filling materials), the materials are input from the total inlet into the feed pipe 5. When the liquid level detector LT01 detects that the liquid level inside the filling tank 1 has not reached M, and the liquid level detector LT01 detects that the liquid level inside the filling tank 1 has reached H, the control valve AV01 is opened. The materials sequentially pass through the control valve AV01, the control valve AV02, and the control valve AV06 and enter the filling valve. The materials then pass through the input port 801 and the third output port 804 of the plunger filling valve 8 after passing through the inside of the filling tank 1, and then the materials are filled into an external container;

[0052] When preheating, the heat transfer fluid is input from the total inlet. The heat transfer fluid sequentially passes through the control valve AV01, the control valve AV02, and the control valve AV06, enters the inside of the filling tank 1, and then sequentially passes through the input port 801 and the first output port 802 of the plunger filling valve 8, the control valve AV09, the control valve AV02, and the reflux tank 2. When the liquid level detector LT02 inside the reflux tank 2 detects that the liquid level inside the reflux tank 2 has reached M, the circulation pump is turned on and the heat transfer fluid inside the reflux tank 2 is pumped to a designated position. When the liquid level detector LT02 inside the reflux tank 2 detects that the liquid level inside the reflux tank 2 has reached L, the circulation pump is turned off and the pumping of the heat transfer fluid stops.

[0053] In this embodiment, a cleaning method for the pipeline system of the plunger filling machine is also provided, including the following steps:

[0054] The first cleaning process (i.e., CIP-1): The cleaning liquid is input from the main inlet into the interior of the pipeline system. After the cleaning liquid is sprayed from the first cleaning spray ball 3 onto the inner wall of the filling tank 1, the cleaning liquid sequentially passes through the return port of the filling tank 1, the return tank 2, and the circulation pump of the return system. This cleaning process is mainly for cleaning the interior of the filling tank 1. The specific flow process of the cleaning liquid in the first cleaning process is as follows: The control valve AV07 is in the open state, and the cleaning liquid is input from the main inlet into the interior of the feed pipe 5. The cleaning liquid sequentially passes through the control valve AV01, the control valve AV02, and the control valve AV05 and is sprayed from the first cleaning spray ball 3 onto the inner wall of the filling tank 1. After the cleaning liquid flows from the inner wall of the filling tank 1 to the bottom, it flows through the control valve AV08 into the interior of the return tank 2. When the liquid level detector LT02 inside the return tank 2 detects that the liquid level inside the return tank 2 reaches M, the circulation pump is turned on and pumps the cleaning liquid inside the return tank 2 to a designated position. When the liquid level detector LT02 inside the return tank 2 detects that the liquid level inside the return tank 2 reaches L, the circulation pump is turned off and stops pumping the cleaning liquid.

[0055] The second cleaning process (i.e., CIP-2): The cleaning liquid is input from the main inlet into the interior of the pipeline system. After the cleaning liquid is input from the feed pipe 5 into the inner cavity of the filling tank 1, the cleaning liquid sequentially passes through the discharge port of the filling tank 1, the input port 801 and the first output port 802 in the plunger filling valve 8, the annular pipe 11, the return tank 2, and the circulation pump of the return system. This cleaning process is mainly for cleaning the first output port 802 and the passage between the input port 801 and the first output port 802 of the plunger filling valve 8. The specific flow process of the cleaning liquid in the second cleaning process is as follows: The control valve AV07 is in the open state, and the cleaning liquid is input from the main inlet into the interior of the feed pipe 5. The cleaning liquid sequentially passes through the control valve AV01, the control valve AV02, and the control valve AV06 and enters the interior of the filling tank 1. Then it sequentially passes through the input port 801 and the first output port 802 of the plunger filling valve 8 and the control valve AV09 and flows into the interior of the return tank 2. When the liquid level detector LT02 inside the return tank 2 detects that the liquid level inside the return tank 2 reaches M, the circulation pump is turned on and pumps the cleaning liquid inside the return tank 2 to a designated position. When the liquid level detector LT02 inside the return tank 2 detects that the liquid level inside the return tank 2 reaches L, the circulation pump is turned off and stops pumping the cleaning liquid.

[0056] Third cleaning process (i.e., CIP-3): The cleaning liquid is input from the main inlet into the interior of the pipeline system. After the cleaning liquid is input from the feed pipe 5 into the inner cavity of the filling tank 1, the cleaning liquid sequentially passes through the discharge port of the filling tank 1, the input port 801 and the second output port 803 in the plunger filling valve 8, the annular pipe 11, the reflux tank 2, and the circulation pump of the reflux system. This cleaning process is mainly for cleaning the second output port 803 and the passage between the input port 801 and the second output port 803 of the plunger filling valve 8. The specific flow process of the cleaning liquid in the third cleaning process is as follows: The control valve AV07 is in the open state. The cleaning liquid is input from the main inlet into the interior of the feed pipe 5. The cleaning liquid sequentially passes through the control valve AV01, the control valve AV02, and the control valve AV06 and enters the interior of the filling tank 1, and then sequentially passes through the input port 801 and the second output port 803 of the plunger filling valve 8 and the control valve AV09 and flows into the interior of the reflux tank 2. When the liquid level detector LT02 in the reflux tank 2 detects that the liquid level in the reflux tank 2 reaches M, the circulation pump is turned on and pumps the cleaning liquid in the reflux tank 2 to a designated position. When the liquid level detector LT02 in the reflux tank 2 detects that the liquid level in the reflux tank 2 reaches L, the circulation pump is turned off and stops pumping the cleaning liquid.

[0057] Fourth cleaning process (i.e., CIP-4): The cleaning liquid is input from the main inlet into the interior of the pipeline system. The cleaning liquid sequentially passes through the annular pipe 11, the second output port 803 and the input port 801 in the plunger filling valve 8, the discharge port of the filling tank 1, the feed pipe 5, the reflux tank 2, and the circulation pump in the reflux system. This cleaning process is mainly for reversely cleaning the first output port 802 and the passage between the input port 801 and the first output port 802 of the plunger filling valve 8. The specific flow process of the cleaning liquid in the fourth cleaning process is as follows: The control valve AV07 is in the closed state. The cleaning liquid is input from the main inlet into the interior of the feed pipe 5. The cleaning liquid sequentially passes through the control valve AV01, the control valve AV03, the control valve AV09, the first output port 802 and the input port 801 in the plunger filling valve 8, enters the interior of the filling tank 1, and then passes through the control valve AV06 and enters the interior of the reflux tank 2 through the feed pipe 5. When the liquid level detector LT02 in the reflux tank 2 detects that the liquid level in the reflux tank 2 reaches M, the circulation pump is turned on and pumps the cleaning liquid in the reflux tank 2 to a designated position. When the liquid level detector LT02 in the reflux tank 2 detects that the liquid level in the reflux tank 2 reaches L, the circulation pump is turned off and stops pumping the cleaning liquid.

[0058] Fifth cleaning process (i.e., CIP-5): Input the cleaning liquid from the main inlet into the interior of the pipeline system. After the cleaning liquid is ejected from the second cleaning spray ball 4 onto the inner wall of the reflux tank 2, the cleaning liquid passes through the reflux tank 2 and the circulation pump of the reflux system in sequence. This cleaning process is mainly for cleaning the interior of the reflux tank 2. The specific flow process of the cleaning liquid in the fifth cleaning process is as follows: Input the cleaning liquid from the main inlet into the interior of the feed pipe 5. The cleaning liquid enters the interior of the reflux tank 2 through the control valve AV04. When the liquid level detector LT02 inside the reflux tank 2 detects that the liquid level inside the reflux tank 2 reaches M, the circulation pump is turned on, and the cleaning liquid inside the reflux tank 2 is pumped to the designated position. When the liquid level detector LT02 inside the reflux tank 2 detects that the liquid level inside the reflux tank 2 reaches L, the circulation pump is turned off, and the pumping of the cleaning liquid stops.

[0059] Specifically, when the pipeline system of the piston filling machine is stopped (i.e., STOP), filled, preheated, in the first cleaning process, the second cleaning process, the third cleaning process, the fourth cleaning process, the fifth cleaning process, and emptied, the connection conditions of each output port of the piston filling valve 8 in the pipeline system, the on / off of each control valve, and the working conditions of the circulation pump are as follows in the table:

[0060]

[0061] The cleaning method of the pipeline system of the piston filling machine in the present invention can clean each channel and output port in the piston filling valve 8, effectively clean each part of the piston filling valve 8, avoid the existence of sanitary dead corners inside the piston filling valve 8, thereby greatly improving the cleaning effect. On the basis of meeting the filling requirements, it is convenient to clean the interior of the pipeline system and ensure the cleaning effect.

[0062] In the description herein, it should be understood that the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0063] In the description of this specification, the description referring to terms such as "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0064] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0065] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A pipeline system of a plunger filling machine, characterized in that , including: A filling tank, the bottom of the filling tank is provided with a reflux port and a discharge port, and a first cleaning spray ball is arranged in the upper part of the inner cavity of the filling tank; A plunger filling valve, having an input port and a first output port, a second output port and a third output port selectively communicating with the input port respectively, the discharge port is communicated with the input port, and the third output port is used for filling liquid into an external container; A reflux tank, and a second cleaning spray ball is arranged in the upper part of the inner cavity of the reflux tank; A pipeline, the pipeline includes a feed pipe and a reflux pipe and a drain pipe selectively communicating with the feed pipe respectively, the first output port and the second output port are selectively communicated with the inside of the reflux tank through the reflux pipe, the reflux pipe connects the reflux port and the reflux tank, a total inlet is arranged on the feed pipe, the total inlet is used for inputting the liquid, one end of the feed pipe far away from the total inlet extends into the inner cavity of the filling tank, and both the first cleaning spray ball and the second cleaning spray ball are selectively communicated with the feed pipe; A reflux system, the reflux system includes a circulation pump, the drain pipe and the reflux tank are both connected with the circulation pump, and the circulation pump can pump the liquid inside the reflux tank and the drain pipe to a designated position; A drain device, the drain device is selectively communicated with the drain pipe and is used for discharging the liquid inside the drain pipe; The total inlet is selectively communicated with the reflux pipe and the drain pipe; One end of the feed pipe extending into the filling tank forms a filling inlet, and the filling inlet is located below the first cleaning spray ball.

2. The pipeline system of the plunger filling machine according to claim 1, characterized in that, A first pipe is arranged between the first output port and the reflux pipe, a second pipe is arranged between the second output port and the reflux pipe, and one end of the first pipe far away from the first output port and one end of the second pipe far away from the second output port are both connected with the reflux pipe through an annular pipe.

3. The pipeline system of the plunger filling machine according to claim 1, characterized in that, Both the filling tank and the reflux tank are connected with a vent pipe, and the vent pipe communicates the inside and the outside of the filling tank and / or the reflux tank.

4. The pipeline system of the plunger filling machine according to claim 3, characterized in that, A control valve is arranged on the vent pipe, and the control valve can close or open the vent pipe.

5. The pipeline system of the plunger filling machine according to claim 1, characterized in that, A control valve is arranged in each branch of the reflux pipe, the feed pipe and the drain pipe, and the control valve can close or open the branch.

6. The pipeline system of the plunger filling machine according to claim 3, characterized in that, A liquid level detector is arranged in the inner cavity of the filling tank and / or the inner cavity of the reflux tank.

7. The pipeline system of the plunger filling machine according to claim 1, characterized in that, A dummy cup is arranged at the third output port of the plunger filling valve, and the dummy cup is used for selectively blocking the third output port.

8. A cleaning method for the pipeline system of the plunger filling machine according to any one of claims 1 to 7, characterized in that, Including the following steps: Input the cleaning liquid from the total inlet into the inside of the pipeline system, after spraying the cleaning liquid from the first cleaning spray ball onto the inner wall of the filling tank, pass the cleaning liquid through the reflux port of the filling tank, the reflux tank and the circulation pump of the reflux system in sequence; Input the cleaning liquid from the total inlet into the inside of the pipeline system, after inputting the cleaning liquid from the feed pipe into the inner cavity of the filling tank, pass the cleaning liquid through the discharge port of the filling tank, the input port and the first output port in the plunger filling valve, the annular pipe, the reflux tank and the circulation pump of the reflux system in sequence; Input the cleaning liquid from the total inlet into the interior of the pipeline system. After inputting the cleaning liquid from the feed pipe into the inner cavity of the filling tank, pass the cleaning liquid successively through the discharge port of the filling tank, the input port and the second output port in the plunger filling valve, the annular pipe, the reflux tank and the circulation pump of the reflux system; Input the cleaning liquid from the total inlet into the interior of the pipeline system. Pass the cleaning liquid successively through the annular pipe, the second output port and the input port in the plunger filling valve, the discharge port of the filling tank, the feed pipe, the reflux tank and the circulation pump in the reflux system; Input the cleaning liquid from the total inlet into the interior of the pipeline system. After spraying the cleaning liquid from the second cleaning spray ball onto the inner wall of the reflux tank, pass the cleaning liquid successively through the reflux tank and the circulation pump of the reflux system.

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