Sterile feeding and discharging equipment with cross valve group

Abstract

The utility model discloses sterile feeding and discharging equipment with a cross valve group. The sterile feeding and discharging equipment comprises the cross valve group, a steam pressure reduction unit and a steam barrier unit, the cross valve group comprises a T-shaped sterile valve, an L-shaped sterile valve and a four-way joint; the steam pressure reducing unit comprises a steam source, a steam filter, a steam pressure reducing valve, a steam pressure gauge, a steam stop valve and a thick pipe; the steam barrier unit comprises a first automatic angle seat valve, a second automatic angle seat valve and a steam trap. According to the utility model, the flow direction of the product is switched by utilizing the cross valve group, the steam pressure reduction unit provides clean and stable-pressure steam for the steam barrier of the cross valve group, and the steam barrier unit provides sterile guarantee for the production of the cross valve group, so that steam sterilization can be carried out under the condition of high temperature for a long time; the sterilization procedure before production of the sterile tank is met, pollution of microorganisms is avoided, the selection of feeding and discharging at the same time is provided for production of the sterile tank, the sterile condition in the production process is guaranteed, pollution of the microorganisms is avoided, and the requirement for long-shelf-life products is met.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to the technology of material conveying, and especially to a sterile feeding and discharging device with a cross valve group. Background Art

[0002] Due to the influence of factors such as shelf life, in the current dairy beverage market in China, the proportion of ambient temperature products is relatively large compared to low-temperature products. Therefore, the application range of sterile tanks is very wide. In the prior art, during the process of producing dairy beverages using a sterile tank, under the condition that the sterile tank can feed and discharge materials simultaneously, it is difficult to ensure that the materials in the feeding and discharging valves do not come into contact with the outside world, resulting in the possibility of the materials in the valves being contaminated with bacteria; in addition, the lack of a sterilization process before the production of the sterile tank also makes it difficult to ensure that the sterile tank produces under sterile conditions. Summary of the Invention

[0003] The purpose of the utility model is to provide a sterile feeding and discharging device with a cross valve group, and the sterile feeding and discharging device with a cross valve group is to solve the technical problems in the prior art that it is difficult to ensure that the materials in the feeding and discharging valves do not come into contact with the outside world and that the sterile tank produces under sterile conditions.

[0004] A sterile feeding and discharging device with a cross valve group of the utility model includes a cross valve group, a steam pressure reducing unit and a steam barrier unit;

[0005] The cross valve group includes a first T-shaped sterile valve, a second T-shaped sterile valve, a first L-shaped sterile valve, a second L-shaped sterile valve and a four-way joint. The first end of the first T-shaped sterile valve is connected to a sterile tank through a pipeline, the second end of the first T-shaped sterile valve is connected to a filling machine through a pipeline, the third end of the first T-shaped sterile valve is connected to the first end of the four-way joint through a pipeline, the first end of the second T-shaped sterile valve is connected to the outlet of a sterilizer through a pipeline, the second end of the second T-shaped sterile valve is connected to the return port of the sterilizer through a pipeline and a return valve, the third end of the second T-shaped sterile valve is connected to the second end of the four-way joint through a pipeline, the first end of the first L-shaped sterile valve is connected to the third end of the four-way joint through a pipeline, the second end of the first L-shaped sterile valve is connected to the second end of a thick pipe through a pipeline, the thick pipe is arranged above the first L-shaped sterile valve, the first end of the second L-shaped sterile valve is connected to the fourth end of the four-way joint through a pipeline, and the second end of the second L-shaped sterile valve is connected to the second end of the thick pipe through a pipeline;

[0006] The steam pressure reducing unit includes a steam source, a steam filter, a steam pressure reducing valve, a steam pressure gauge, a steam stop valve, and the thick pipe. The first end of the steam filter is connected to the steam source through a pipe, the second end of the steam filter is connected to the first end of the steam pressure reducing valve through a pipe, the third end of the steam filter is connected to the first end of the steam trap through a pipe, the second end of the steam pressure reducing valve is connected to the first end of the steam stop valve through a pipe, a steam pressure gauge is provided on the pipe between the steam pressure reducing valve and the steam stop valve, the second end of the steam stop valve is connected to the first end of the thick pipe through a pipe, and the diameters of both the first end and the second end of the thick pipe are smaller than the diameter of its middle part;

[0007] The steam barrier unit includes a first automatic angle seat valve, a second automatic angle seat valve, and a steam trap. The first end of the first automatic angle seat valve is connected to the second end of the thick pipe through a pipe, the second end of the first automatic angle seat valve is connected to the steam trap through a pipe, the second port of the steam trap is connected to the drain port, the first end of the second automatic angle seat valve is connected to the second end of the thick pipe through a pipe, the second end of the second automatic angle seat valve is connected to the drain port through a pipe, and a third automatic angle seat valve and a temperature sensor are provided on the pipes between the first automatic angle seat valve, the second automatic angle seat valve and the thick pipe;

[0008] The control ends of the first T-shaped sterile valve, the second T-shaped sterile valve, the first L-shaped sterile valve, the second L-shaped sterile valve, the first automatic angle seat valve, the second automatic angle seat valve, the third automatic angle seat valve, the reflux valve, and the signal output end of the temperature sensor are all connected to a controller.

[0009] Further, the first T-shaped sterile valve and the second T-shaped sterile valve are normally open valves, and the first L-shaped sterile valve and the second L-shaped sterile valve are normally closed valves.

[0010] Further, the steam stop valve is an automatic angle seat valve.

[0011] Compared with the prior art, the effects of the present utility model are positive and obvious. The application of the cross valve group of the present utility model realizes the switching of the product flow direction. The steam pressure reducing unit provides clean and stable pressure steam for the steam barrier of the cross valve group. The steam barrier unit provides a sterile guarantee for the production of the cross valve group, and can perform steam sterilization under high temperature conditions for a long time to meet the sterilization procedure before the production of the sterile tank, avoid microbial contamination, provides an option of entering and exiting while in production for the sterile tank, ensures the sterile conditions during the production process, avoids microbial contamination, thereby extending the shelf life of the product and meeting the requirements of products with a long shelf life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a sterile feeding and discharging device with a cross valve group of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The present utility model will be further described in conjunction with the embodiments below. However, the present utility model is not limited to these embodiments. Any similar structure and its similar variations of the present utility model should be included in the protection scope of the present utility model. The use of directions such as up, down, front, back, left, and right in the present utility model is only for the convenience of clear description and does not limit the technical solution of the present utility model.

[0014] As Figure 1 shown, a sterile feeding and discharging device with a cross valve group of the present utility model includes a cross valve group, a steam pressure reducing unit, and a steam barrier unit;

[0015] The cross valve group includes a first T-shaped sterile valve 9, a second T-shaped sterile valve 10, a first L-shaped sterile valve 8, a second L-shaped sterile valve 12, and a four-way joint 17. The first end of the first T-shaped sterile valve 9 is connected to the sterile tank 1 through a pipeline. The second end of the first T-shaped sterile valve 9 is connected to the filling machine through a pipeline. The third end of the first T-shaped sterile valve 9 is connected to the first end of the four-way joint 17 through a pipeline. The first end of the second T-shaped sterile valve 10 is connected to the outlet of the sterilizer through a pipeline. The second end of the second T-shaped sterile valve 10 is connected to the return port of the sterilizer through a pipeline and a return valve 18. The third end of the second T-shaped sterile valve 10 is connected to the second end of the four-way joint 17 through a pipeline. The first end of the first L-shaped sterile valve 8 is connected to the third end of the four-way joint 17 through a pipeline. The second end of the first L-shaped sterile valve 8 is connected to the second end of a thick pipe 7 through a pipeline. The thick pipe 7 is arranged above the first L-shaped sterile valve 8. The first end of the second L-shaped sterile valve 12 is connected to the fourth end of the four-way joint 17 through a pipeline. The second end of the second L-shaped sterile valve 12 is connected to the second end of the thick pipe 7 through a pipeline;

[0016] The steam pressure reducing unit includes a steam source, a steam filter 2, a steam pressure reducing valve 4, a steam pressure gauge 5, a steam stop valve 6, and the thick pipe 7. The first end of the steam filter 2 is connected to the steam source through a pipeline. The second end of the steam filter 2 is connected to the first end of the steam pressure reducing valve 4 through a pipeline. The third end of the steam filter 2 is connected to the first end of a steam trap 3 through a pipeline. The second end of the steam pressure reducing valve 4 is connected to the first end of the steam stop valve 6 through a pipeline. A steam pressure gauge 5 is arranged on the pipeline between the steam pressure reducing valve 4 and the steam stop valve 6. The second end of the steam stop valve 6 is connected to the first end of the thick pipe 7 through a pipeline. The diameters of both the first end and the second end of the thick pipe 7 are smaller than the diameter of its middle part;

[0017] The steam barrier unit includes a first automatic angle seat valve 14, a second automatic angle seat valve 15, and a steam trap 13. The first end of the first automatic angle seat valve 14 is connected to the second end of the thick pipe 7 through a pipeline. The second end of the first automatic angle seat valve 14 is connected to the steam trap 13 through a pipeline. The second port of the steam trap 13 is connected to the drain port. The first end of the second automatic angle seat valve 15 is connected to the second end of the thick pipe 7 through a pipeline. The second end of the second automatic angle seat valve 15 is connected to the drain port through a pipeline. A third automatic angle seat valve 11 and a temperature sensor 16 are provided on the pipeline between the first automatic angle seat valve 14, the second automatic angle seat valve 15, and the thick pipe 7;

[0018] The control ends of the first T-shaped sterile valve 9, the second T-shaped sterile valve 10, the first L-shaped sterile valve 8, the second L-shaped sterile valve 12, the first automatic angle seat valve 14, the second automatic angle seat valve 15, the third automatic angle seat valve 11, and the reflux valve 18, and the signal output end of the temperature sensor 16 are all connected to a controller.

[0019] Furthermore, the first T-shaped sterile valve 9 and the second T-shaped sterile valve 10 are normally open valves, and the first L-shaped sterile valve 8 and the second L-shaped sterile valve 12 are normally closed valves.

[0020] Furthermore, the steam stop valve 6 is an automatic angle seat valve.

[0021] Specifically, the T-shaped sterile valve, L-shaped sterile valve, automatic angle seat valve, temperature sensor 16, controller, steam source, steam filter 2, steam pressure reducing valve 4, steam pressure gauge 5, steam stop valve 6, thick pipe 7, etc. in this embodiment all adopt well-known solutions in the prior art, which are already understood by those skilled in the art and will not be elaborated here.

[0022] The first ends and the second ends of the first T-shaped sterile valve 9 and the second T-shaped sterile valve 10 are always connected. When the first T-shaped sterile valve 9 and the second T-shaped sterile valve 10 are closed, their first ends, second ends, and third ends are not connected; when opened, their first ends, second ends, and third ends are all connected.

[0023] The function of the steam pressure reducing unit is to provide clean steam for the steam barrier and sterilization of the cross valve group. In order to maintain the stability of the steam pressure, a configuration of first filtering and then reducing pressure is adopted to ensure that there is no pressure fluctuation during the production and sterilization processes.

[0024] The fourth port of the steam filter 2 is connected to a plug. There is no need to discharge steam. The steam filter 2 uses a stainless-steel filter housing, equipped with an upper exhaust port and a lower drain port. The sealing material is EPDM. The filter element material of the steam filter 2 is P-SRF, with a filtration accuracy of 0.01 microns, and the interception rate of impurities can be greater than 99.9999%. The steam pressure reducing valve 4 uses a pressure reducing valve made of stainless steel, and different sizes of pressure reducing valves are selected according to the steam volume and steam pressure for different uses. The steam pressure gauge 5 is used to observe the steam pressure after the pressure reducing valve, and the measuring range of the pressure gauge can be selected as 0-0.6 Mpa and 0-1.0 Mpa. The steam stop valve 6 uses a high-temperature-resistant automatic angle seat valve made of stainless steel.

[0025] The thick pipe 7 in the steam barrier is a thick pipe with variable diameters at the top and bottom. When the lower valves (the first L-shaped sterile valve 8, the first automatic angle seat valve 14, and the second automatic angle seat valve 15) are closed, the steam in the thick pipe 7 contacts the stainless-steel surface of the thick pipe 7 and dissipates heat and gradually condenses. The condensed water continuously accumulates and stores in the thick pipe 7, which is used for flushing the product in the cross-valve cavity after the feeding is completed, preventing the residual liquid in the cross-valve cavity from coking during the sterilization process and resulting in a state where it cannot be cleaned thoroughly. The thick pipe 7 also needs to ensure a certain installation height to ensure a certain scouring force.

[0026] The sterile valve uses stainless-steel bellows technology. The number of seals of the stainless-steel bellows is small, only having static seal elements, with very good chemical resistance and heat resistance. At the same time, the aging resistance and pressure resistance are also very good. The valve seat seal has good chemical resistance and heat resistance, and the working temperature can be as high as 150 °C.

[0027] The first T-shaped sterile valve 9 and the second T-shaped sterile valve 10 are normally closed valves, which are used to change the flow direction of the product through the operation of the valves. Their sizes are related to the inlet and outlet flow rates of the sterile tank 1, and the most suitable valve size is selected by calculating the appropriate flow rate.

[0028] The first L-shaped sterile valve 8 and the second L-shaped sterile valve 12 are used to provide a sterile environment for the two T-shaped sterile valves and the sterile tank 1, and normally open valves are usually selected.

[0029] Steam barrier unit, comprising a direct drain valve group and a steam trap group. The direct drain valve group is the second automatic angle seat valve 15, usually an automatic angle seat valve with normally open and high temperature resistance, and the sealing member has a temperature tolerance of 220 °C. The steam trap group includes the first automatic angle seat valve 14 and the steam trap 13. The material of the first automatic angle seat valve 14 is the same as that of the direct drain valve group, and both require a high temperature resistant valve type; the temperature sensor 16 has a measuring range of 0 - 200 °C, and the temperature sensor 16 is a direct contact type sensor with high thermal sensitivity, which can better feedback the temperature of the valve barrier. The first automatic angle seat valve 14 can drain condensate through the steam trap 13 and cannot drain steam, while the second automatic angle seat valve 15 can drain condensate and steam. The temperature sensor 16 is used to detect the temperature during sterilization and steam barrier, and is used to judge whether the set conditions are met. The direct drain valve group and the steam trap group are arranged side by side, and the sterilization temperature and the barrier temperature can be quickly raised to the set temperature.

[0030] Working principle of this embodiment:

[0031] The operation program of the aseptic inlet and outlet cross valve includes the CIP cleaning program, the sterilization program and the production program.

[0032] Before production, it is necessary to ensure that all systems of the aseptic tank 1 are in an aseptic state. Usually, the aseptic tank 1 needs to be first subjected to CIP cleaning and sterilization. When the aseptic tank 1 is cleaned, the cross valve group also follows the aseptic tank 1 for CIP cleaning and sterilization.

[0033] The cleaning of the cross valve group and the CIP cleaning of the aseptic tank 1 are carried out simultaneously. The CIP cleaning program is generally water flushing → caustic washing → water flushing → acid washing → final flushing. During CIP cleaning, first add the CIP cleaning solution into the aseptic tank 1, open the first T-shaped aseptic valve 9, close the second T-shaped aseptic valve 10, close the first L-shaped aseptic valve 8, close the first automatic angle seat valve 14 and open the second automatic angle seat valve 15 in the steam barrier unit, so that the CIP solution in the aseptic tank 1 can enter the cross valve cavity (the four-way joint 17 and its connected pipes and valves) through the first T-shaped aseptic valve 9, ensuring that the CIP cleaning solution will not be drained off by the steam trap 13. The second L-shaped aseptic valve 12 pulsates (performs multiple rapid and periodic opening and closing operations within a short time), so that the CIP cleaning solution in the cross valve cavity can be pulsed and emptied from the second L-shaped aseptic valve 12 and the second automatic angle seat valve 15, thus meeting the requirement of cleaning the cross valve cavity.

[0034] After the CIP cleaning is completed, the sterilization process is entered. The sterilization of the cross valve group and the sterile tank 1 is also carried out simultaneously. The sterilization temperature of the cross valve group is the same as that of the sterile tank 1, both of which need to reach 125°C. When sterilizing the cross valve group, steam is input from the top of the sterile tank 1, and the first T-shaped sterile valve 9 is opened. The steam in the sterile tank 1 reaches the cross valve cavity through the first T-shaped sterile valve 9. When the temperature sensor 16 in the steam barrier unit is lower than 95°C (indicating that the steam in the pipeline has condensed into condensate), the second automatic angle seat valve 15 in the steam barrier unit is opened, and the first automatic angle seat valve 14 is closed, so that the condensate in the pipeline can be completely drained from the second automatic angle seat valve 15. When the temperature detected by the temperature sensor 16 is higher than 95°C and lower than 121°C, the second automatic angle seat valve 15 in the steam barrier pulses to open, so that the condensate is pulsed and drained. When the temperature of the temperature sensor 16 is higher than 121°C, the second automatic angle seat valve 15 is closed, so as to adjust the action of the second automatic angle seat valve 15 by detecting the temperature in the pipeline, ensuring that the temperature in the cross valve group and the valve cavity is higher than 125°C during the entire sterilization process. After maintaining for 1800 seconds, the sterilization is completed. After the sterilization is completed, the sterile tank 1 and the cross valve group enter the cooling step. At this time, the sterile tank 1 and the cross valve group enter the sterile state, and the steam barriers of the cross valve group and the sterile tank 1 are started. After the cooling is completed, the sterile tank 1 can jump to the production program.

[0035] The production process of the sterile tank 1 includes a feeding process and a discharging process. Through the action of the cross valve group, the sterile tank 1 can discharge while feeding, or the discharging process can be carried out independently. Before the sterile tank 1 enters the production process, the steam barrier is started. It is necessary to adjust the steam pressure in the steam pressure reducing unit in advance. Adjust the steam pressure reducing valve 4, observe the steam pressure gauge 5, and adjust the pressure to 0.13 Mpa to ensure the temperature of the steam barrier. Open the steam stop valve 6 in the steam pressure reducing unit. First, close the first L-shaped sterile valve 8 and the second L-shaped sterile valve 12 in the cross valve group. Open the third automatic angle seat valve 11 in the steam barrier valve group, open the first automatic angle seat valve 14, and close the second automatic angle seat valve 15. After draining the condensed water through the first automatic angle seat valve 14, open the first L-shaped sterile valve 8 and the second L-shaped sterile valve 12, and close the first T-shaped sterile valve 9 and the second T-shaped sterile valve 10. Observe the temperature sensor 16 of the steam barrier. When the temperature reaches 121 °C, close the second automatic angle seat valve 15. The state of the steam barrier is completed. During the entire production process of the sterile tank 1, it is necessary to ensure the state of the steam barrier. When receiving the feeding request signal from the sterilizer, the sterile tank 1 enters the production state. Open the first T-shaped sterile valve 9 and the second T-shaped sterile valve 10 in the cross valve group, close the reflux valve 18, the first L-shaped sterile valve 8 and the second L-shaped sterile valve 12. The material enters the sterile tank 1 from the sterilizer through the second T-shaped sterile valve 10, the four-way joint 17, and the first T-shaped sterile valve 9. It can also be transported to the filling machine (the material of the sterilizer enters the filling machine through the second T-shaped sterile valve 10, the four-way joint 17, and the first T-shaped sterile valve 9). During the feeding process, it is necessary to ensure the steam barrier state of the cross valve group. During the production process, observe the temperature sensor 16. If the temperature is lower than the set temperature, the state of the steam barrier is damaged, and the feeding should be terminated at this time. At the same time, during this process, the steam in the thick pipe 7 contacts the stainless steel surface of the thick pipe 7 and dissipates heat and gradually condenses. The condensed water continuously accumulates and stores in the thick pipe 7.

[0036] When the sterile tank 1 receives the signal that the sterilizer has completed production, open the reflux valve 18, close the first T-shaped sterile valve 9 and the second T-shaped sterile valve 10 in the cross valve group, close the third automatic angle seat valve 11 and the first automatic angle seat valve 14 in the steam barrier, open the second automatic angle seat valve 15, open the first L-shaped sterile valve 8 and the second L-shaped sterile valve 12 in the cross valve group, open the steam source. The condensed water in the thick pipe 7 is pushed by the steam pressure above the liquid level, flows through the first L-shaped sterile valve 8 and the second L-shaped sterile valve 12, flushes the residual liquid in the cross valve cavity, and is discharged to the ground through the second automatic angle seat valve 15, so as to ensure that there is no product residue in the cross valve cavity and prevent the product in the cross valve cavity from coking during the sterilization process, resulting in the consequence of not being cleaned. After the flushing is completed, close the first L-shaped sterile valve 8 and the second L-shaped sterile valve 12, open the third automatic angle seat valve 11, and the steam barrier returns to the original steam barrier state.

[0037] When the sterile tank 1 needs to carry out the discharging procedure alone (sterile tank 1 → first T-shaped sterile valve 9 → filling machine), the first T-shaped sterile valve 9 and the second T-shaped sterile valve 10 in the cross valve group remain closed, the first L-shaped sterile valve 8 and the second L-shaped sterile valve 12 are opened, the steam stop valve 6 and the third automatic angle seat valve 11 are opened, so that the cross valve group is still in the state of steam barrier. The temperature is detected by the temperature sensor 16 to ensure the steam barrier state during the production process and the sterile state. Similarly, when the temperature detected by the temperature sensor 16 is lower than the set temperature, the sterile state of the sterile tank 1 and the cross valve group is damaged, and the production is stopped from continuing. When the production of the sterile tank 1 is completed or the sterile state of the sterile tank 1 is damaged, it is necessary to re-perform the CIP cleaning and sterilization procedures on the sterile tank 1, and repeat the CIP cleaning procedure and the sterilization procedure.

[0038] The application of the cross valve group of the present utility model realizes the switching of the product flow direction. The steam decompression unit provides clean and stable pressure steam for the steam barrier of the cross valve group. The steam barrier unit provides a sterile guarantee for the production of the cross valve group, and can carry out steam sterilization under the condition of high temperature for a long time to meet the sterilization procedure before the production of the sterile tank 1, avoid microbial contamination, provide a choice of simultaneous inlet and outlet for the production of the sterile tank 1, ensure the sterile conditions during the production process, avoid microbial contamination, thereby extending the shelf life of the product and meeting the requirements of products with a long shelf life.

Claims

1. A sterile feeding and discharging device with a cross valve group, characterized in that: It includes a cross valve group, a steam pressure reducing unit and a steam barrier unit; The cross valve group includes a first T-type aseptic valve, a second T-type aseptic valve, a first L-type aseptic valve, a second L-type aseptic valve and a four-way joint, the first end of the first T-type aseptic valve is connected to the aseptic tank through a pipeline, the second end of the first T-type aseptic valve is connected to the filling machine through a pipeline, the third end of the first T-type aseptic valve is connected to the first end of the four-way joint through a pipeline, the first end of the second T-type aseptic valve is connected to the outlet of the sterilizer through a pipeline, the second end of the second T-type aseptic valve is connected to the reflux port of the sterilizer through a pipeline and a reflux valve, the third end of the second T-type aseptic valve is connected to the second end of the four-way joint through a pipeline, the first end of the first L-type aseptic valve is connected to the third end of the four-way joint through a pipeline, the second end of the first L-type aseptic valve is connected to the second end of a thick tube through a pipeline, the thick tube is arranged above the first L-type aseptic valve, the first end of the second L-type aseptic valve is connected to the fourth end of the four-way joint through a pipeline, and the second end of the second L-type aseptic valve is connected to the second end of the thick tube through a pipeline; The steam pressure reducing unit comprises a steam source, a steam filter, a steam pressure reducing valve, a steam pressure gauge, a steam stop valve and the thick pipe, wherein the first end of the steam filter is connected to the steam source through a pipe, the second end of the steam filter is connected to the first end of the steam pressure reducing valve through a pipe, the third end of the steam filter is connected to the first end of the steam trap through a pipe, the second end of the steam pressure reducing valve is connected to the first end of the steam stop valve through a pipe, a steam pressure gauge is provided on the pipe between the steam pressure reducing valve and the steam stop valve, the second end of the steam stop valve is connected to the first end of the thick pipe through a pipe, and the diameter of the first end and the diameter of the second end of the thick pipe are both smaller than the diameter of the middle part thereof; The steam barrier unit comprises a first automatic angle seat valve, a second automatic angle seat valve, and a steam trap, wherein the first end of the first automatic angle seat valve is connected to the second end of the thick pipe through a pipeline, the second end of the first automatic angle seat valve is connected to the steam trap through a pipeline, the second port of the steam trap is connected to the drain port, the first end of the second automatic angle seat valve is connected to the second end of the thick pipe through a pipeline, the second end of the second automatic angle seat valve is connected to the drain port through a pipeline, and a third automatic angle seat valve and a temperature sensor are arranged on the pipeline between the first automatic angle seat valve, the second automatic angle seat valve and the thick pipe; The first T-type sterile valve, the second T-type sterile valve, the first L-type sterile valve, the second L-type sterile valve, the first automatic angle seat valve, the second automatic angle seat valve, the third automatic angle seat valve, the control end of the reflux valve, and the signal output end of the temperature sensor are all connected to a controller.

2. The aseptic feeding and discharging equipment with a cross valve assembly according to claim 1 is characterized in that: The first T-type aseptic valve and the second T-type aseptic valve are normally open valves, and the first L-type aseptic valve and the second L-type aseptic valve are normally closed valves.

3. The aseptic feeding and discharging equipment with a cross valve assembly according to claim 1 is characterized in that: The steam stop valve is an automatic angle seat valve.

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