CN216285202U

CN216285202U - Feed liquid conveying device and system

Info

Publication number: CN216285202U
Application number: CN202122875957.9U
Authority: CN
Inventors: 秦文林; 王冬梅; 杜欣; 孙云峰; 张海斌
Original assignee: Inner Mongolia Yili Industrial Group Co Ltd
Current assignee: Inner Mongolia Yili Industrial Group Co Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-12
Anticipated expiration: 2031-11-22

Abstract

The embodiment of the application provides a feed liquid conveyor and system, wherein, this feed liquid conveyor includes: the conveying pipe is provided with a first input end, a second input end and an output end, wherein the first input end is used for inputting target feed liquid, and the second input end is used for inputting sterile water; the discharge valve is arranged at the output end; the ground discharge valve is arranged at the output end; the PH detector is arranged at the output end and used for detecting the PH value of the feed liquid in the conveying pipe; the controller is respectively connected with the PH detector, the discharge valve and the ground discharge valve; the controller is used for respectively sending a first opening instruction to the discharge valve and a first closing instruction to the ground discharge valve when the PH value is smaller than the PH threshold value, so that the discharge valve is opened and the ground discharge valve is closed. The technical scheme of this application embodiment can improve the control accuracy of aseptic water ejection control, reduces the waste of target feed liquid, reduction in production cost.

Description

Feed liquid conveying device and system

Technical Field

The application relates to the technical field of production, especially, relate to a feed liquid conveyor and system.

Background

In the production of dairy products, the starting equipment and the target equipment are usually communicated through a delivery pipe to deliver the target feed liquid contained in the starting equipment to the target equipment. Before the target material liquid is conveyed, sterile water is required to be injected into the conveying pipe, so that the conveying pipe is filled with the sterile water, and the conveying pipe is ensured to be in a sterile state. And in the process of conveying the target material liquid, injecting the target material liquid into the conveying pipe, and receiving the target material liquid by using target equipment after the target material liquid completely ejects out sterile water. However, the existing aseptic water ejection control is basically based on manual experience to manually control the opening and closing of the related valves, and the control precision is low, so that the waste of the feed liquid is easily caused.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a feed liquid conveying device and a feed liquid conveying system, which are used for solving or relieving one or more technical problems in the prior art.

As an aspect of an embodiment of the present application, an embodiment of the present application provides a liquid conveying apparatus, including:

the conveying pipe is provided with a first input end, a second input end and an output end, wherein the first input end is used for inputting target feed liquid, and the second input end is used for inputting sterile water;

the discharge valve is arranged at the output end;

the ground discharge valve is arranged at the output end;

the PH detector is arranged at the output end and used for detecting the PH value of the feed liquid in the conveying pipe;

the controller is respectively connected with the PH detector, the discharge valve and the ground discharge valve;

the controller is used for sending a first opening instruction to the discharge valve and sending a first closing instruction to the ground discharge valve when the PH value is smaller than the PH threshold value, so that the discharge valve is opened and the ground discharge valve is closed.

In one embodiment, the controller is further configured to send a first closing command to the discharge valve and a first opening command to the ground drain valve when the PH is greater than the PH threshold, respectively, such that the discharge valve is closed and the ground drain valve is opened.

In one embodiment, the apparatus further comprises:

the conductivity detector is arranged at the output end and used for detecting the conductivity of the feed liquid in the conveying pipe;

the controller is connected with the conductivity detector and used for respectively sending a first opening instruction to the discharge valve and a first closing instruction to the ground discharge valve when the conductivity is greater than a conductivity threshold value so as to open the discharge valve and close the ground discharge valve; the controller is further used for respectively sending a first closing instruction to the discharge valve and a first opening instruction to the ground discharge valve when the conductivity is smaller than the conductivity threshold value, so that the discharge valve is closed and the ground discharge valve is opened.

In one embodiment, the apparatus further comprises:

the feeding pipe is communicated with the first input end and is used for providing target feed liquid for the conveying pipe;

the feeding valve is arranged on the feeding pipe;

the instruction input component is used for inputting a second opening instruction or a second closing instruction;

wherein, the feed pipe communicates with first input end, and the controller is connected with feed valve and instruction input part respectively, and the controller is used for when receiving the second and opens the instruction, sends the second to the feed valve and opens the instruction to make the feed valve open, perhaps when receiving the second and close the instruction, sends the second to the feed valve and closes the instruction, so that the feed valve closes.

In one embodiment, the instruction input unit is further configured to input a third opening instruction or a third closing instruction, and the apparatus further includes:

the water supply pipe is communicated with the second input end and is used for supplying sterile water to the conveying pipe;

a water supply valve provided in the water supply pipe;

the controller is connected with the water supply valve and used for sending a third opening instruction to the water supply valve to open the water supply valve when receiving the third opening instruction or sending a third closing instruction to the water supply valve to close the water supply valve when receiving the third closing instruction.

In one embodiment, the apparatus further comprises: and the first display is respectively connected with the PH detector and the conductivity detector so as to display the PH value and the conductivity.

In one embodiment, the apparatus further comprises: and the second display is connected with the controller and is used for displaying the opening and closing states of the discharge valve, the ground discharge valve, the feed valve and the water supply valve.

In one embodiment, the apparatus further comprises: and the delivery pump is arranged on the delivery pipe.

As another aspect of the embodiments of the present application, the embodiments of the present application provide a liquid conveying system, which includes an initial device, a target device, and the apparatus of any of the above embodiments, wherein the initial device is communicated with the first input end, and the target device is communicated with the output end.

In one embodiment, the initial equipment is a yoghourt fermentation tank, the target equipment is filling equipment, the target material liquid is yoghourt, and the pH threshold value is any value between 3.4 and 5; or the initial equipment is a milk tank, the target equipment is sterilization equipment, the target feed liquid is fresh milk, and the pH threshold value is any value between 5.8 and 6.2.

The embodiment of the application adopts above-mentioned technical scheme, utilizes the PH detector to detect the pH value of feed liquid in the conveyer pipe, and the controller is used for sending first opening instruction to the bleeder valve respectively when the pH value is less than the PH threshold value so that the bleeder valve is automatic to open to and send first closing instruction to arranging the ground valve so that arrange the ground valve self-closing, can improve aseptic water ejection control's control accuracy, reduced the waste of target feed liquid, more be favorable to reduction in production cost.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

Fig. 1 shows a schematic structural diagram of a feed liquid conveying device according to an embodiment of the present application.

Fig. 2 shows a schematic structural diagram of a feed liquid conveying system according to an embodiment of the present application.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

Fig. 1 shows a schematic structural diagram of a feed liquid conveying device according to an embodiment of the present application. As shown in fig. 1, the feed liquid delivery device 100 may include: a delivery pipe 110, a discharge valve 111, a ground discharge valve 112, a PH detector 113, and a controller 120. Wherein the delivery tube 110 has a first input 110A, a second input 110B and an output 110C, the first input 110A is used for inputting the target feed liquid, and the second input 110B is used for inputting the sterile water. Bleeder valve 111 is disposed at output terminal 110C, and ground valve 112 is located the input side of bleeder valve 111. A PH sensor 113 is disposed at the output end 110C, and the PH sensor 113 is used for sensing the PH of the feed liquid in the delivery pipe 110. The controller 120 is connected to the PH detector 113, the discharge valve 111, and the ground discharge valve 112 (line segments in the drawing indicate the connection relationship between the controller 120 and the PH detector 113, the discharge valve 111, and the ground discharge valve 112), and the controller 120 is configured to send a first opening command to the discharge valve 111 and a first closing command to the ground discharge valve 112, respectively, when the PH value is less than the PH threshold value, so that the discharge valve 111 is opened and the ground discharge valve 112 is closed.

In one application scenario, sterile water is first introduced into delivery tube 110 from second input 110B prior to delivery of the target feed solution, such that sterile water fills delivery tube 110, ensuring sterility within delivery tube 110. In the process of transporting the target feed liquid, the target feed liquid is fed into the transport pipe 110 from the first input terminal 110A, and the feeding of the sterile water is stopped, and the sterile water in the transport pipe 110 is pushed out by the target feed liquid so that the sterile water is discharged to the outside from the ground discharge valve 112, so that the sterile water in the transport pipe 110 is replaced with the target feed liquid. Wherein, because the PH value of sterile water is usually higher than the PH value of the target feed liquid, and PH detector 113 is disposed at output end 110C, when detecting that the PH value is less than the PH threshold, it can be determined that the sterile water in delivery pipe 110 is completely ejected by the target feed liquid, and the delivery pipe 110 is full of the target feed liquid, at this moment, controller 120 sends a first opening instruction to bleeder valve 111 and a first closing instruction to discharge valve 112, so that bleeder valve 111 is opened and discharge valve 112 is closed, and thus the target feed liquid can be output to the target device through bleeder valve 111.

In the related art, in order to ensure that the sterile water is completely ejected, a part of the target material liquid is continuously discharged from the ground discharge valve 112 after the target material liquid fills the delivery pipe 110, and then the ground discharge valve 112 is manually closed and the discharge valve 111 is manually opened, so that the control precision is low, and the target material liquid is easily wasted.

Above-mentioned scheme, utilize PH detector 113 to detect the pH value of the interior feed liquid of conveyer pipe 110, controller 120 sends first opening instruction respectively to bleeder valve 111 when pH value is less than the pH threshold value so that bleeder valve 111 opens automatically to and send first closing instruction so that arrange ground valve 112 self-closing to arranging ground valve 112, can improve the control accuracy of aseptic water ejection control, reduced the waste of target feed liquid, more be favorable to reduction in production cost.

In one embodiment, the controller 120 is further configured to send a first closing command to the discharging valve 111 and a first opening command to the ground draining valve 112 when the PH value is greater than the PH threshold, respectively, so that the discharging valve 111 is closed and the ground draining valve 112 is opened.

In one application scenario, when the target material liquid stops being input into the delivery pipe 110 from the first input end 110A, sterile water is input into the delivery pipe 110 from the second input end 110B, and the target material liquid is ejected out of the discharge valve 111 by the sterile water, so that the target material liquid in the delivery pipe 110 is discharged from the discharge valve 111, and the target material liquid in the delivery pipe 110 is received by the target device, thereby replacing the target material liquid in the delivery pipe 110 with sterile water. When the PH detector 113 detects that the PH value is greater than the PH threshold, it may be determined that the target feed liquid in the delivery pipe 110 is substantially ejected, the feed liquid near the output end 110C in the delivery pipe 110 is a mixed feed liquid of the target feed liquid and sterile water, and the feed liquid near the output end 110B in the delivery pipe 110 is sterile water, at this time, the controller 120 sends a first closing instruction to the discharge valve 111 to automatically close the discharge valve 111, and sends a first opening instruction to the ground discharge valve 112 to automatically open the ground discharge valve 112, so that the mixed feed liquid of the target feed liquid and the sterile water may be discharged to the outside through the ground discharge valve 112. In addition, the mixed liquid is gradually ejected out of the ground discharge valve 112 by the sterile water in the delivery pipe 110, and the sterile water is also discharged to the outside from the ground discharge valve 112, so that the delivery pipe 110 can be cleaned.

In the related art, in order to ensure that only the target material liquid can be discharged from the discharge valve 111, when the first input end 110A stops inputting the target material liquid, a part of the target material liquid meeting the transportation standard of the discharge valve 111 needs to be discharged from the ground discharge valve 112, which also causes waste of the target material liquid. In addition, the target material liquid discharged from the ground discharge valve 112 requires an additional sewage treatment process, which increases the treatment cost.

Above-mentioned scheme, utilize the PH value of the interior feed liquid of PH detector 113 detection conveyer pipe 110, controller 120 is used for sending first instruction of closing so that bleeder valve 111 self-closing to bleeder valve 111 respectively when the PH value is greater than the PH threshold value to and send first instruction of opening so that arrange ground valve 112 automatic opening to arranging ground valve 112, can improve the control accuracy that target feed liquid carried control, reduced the waste of target feed liquid, more be favorable to reduction in production cost and sewage treatment cost.

In one embodiment, the apparatus further comprises a conductivity detector 114, wherein the conductivity detector 114 is disposed at the output end 110C for detecting the conductivity of the feed liquid in the delivery pipe 110. The controller 120 is connected to the conductivity detector 114, and the controller 120 is configured to send a first opening instruction to the discharge valve 111 and a first closing instruction to the ground discharge valve 112, respectively, when the conductivity is greater than the conductivity threshold value, so that the discharge valve 111 is opened and the ground discharge valve 112 is closed; the controller 120 is further configured to send a first closing command to the discharge valve 111 and a first opening command to the ground discharge valve 112, respectively, when the conductivity is smaller than the conductivity threshold value, so that the discharge valve 111 is closed and the ground discharge valve 112 is opened.

Illustratively, since the conductivity of the sterile water is much smaller than that of the target feed liquid, and the conductivity detector 114 is disposed at the output end 110C, the conductivity detector 114 can be used to detect the conductivity of the feed liquid in the delivery pipe 110 to determine the delivery condition of the target feed liquid when the PH detector 113 fails. For example, upon detecting an electrical conductivity greater than an electrical conductivity threshold, it can be determined that the sterile water within delivery tube 110 has been completely ejected by the target feed liquid, and that the target feed liquid fills delivery tube 110. When the conductivity is detected to be less than the conductivity threshold, it can be determined that the target feed liquid in the delivery pipe 110 is substantially ejected, the feed liquid in the delivery pipe 110 near the output end 110C is a mixed feed liquid of the target feed liquid and sterile water, the feed liquid in the delivery pipe 110 near the input end is sterile water, and the sterile water will continue to fill the delivery pipe 110 as the mixed feed liquid is completely ejected. In addition, the controller 120 can refer to the above examples for controlling the discharge valve 111 and the ground discharge valve 112, which are not described herein.

In the above-mentioned scheme, the conductivity of the feed liquid in the delivery pipe 110 is detected by the conductivity detector 114, so that the controller 120 controls the opening and closing of the discharge valve 111 and the ground discharge valve 112 according to the conductivity, and the ejection of sterile water and the ejection of the target feed liquid can be effectively controlled when the PH detector 113 fails, thereby improving the reliability of the device.

In one embodiment, the apparatus may further include a supply pipe 130, a supply valve 131, and a command input part 140. A feed tube 130 is in communication with the first input end 110A for providing the target feed liquid to the delivery tube 110; the supply valve 131 is disposed in the supply pipe 130; the command input part 140 is used to input a second opening command or a second closing command. Wherein, the supply pipe 130 is communicated with the first input end 110A, the controller 120 is respectively connected with the supply valve 131 and the instruction input part 140, and the controller 120 is configured to send a second opening instruction to the supply valve 131 to automatically open the supply valve 131 when receiving a second opening instruction, or send a second closing instruction to the supply valve 131 to automatically close the supply valve 131 when receiving a second closing instruction.

Illustratively, during the process of delivering the target feed liquid, the user may input a second opening command by operating the command input part 140, and the controller 120 receives and sends the second opening command to the supply valve 131, so that the supply valve 131 is automatically opened, and the target feed liquid is delivered into the delivery pipe 110 from the first input terminal 110A. The user may also input a second closing command by operating the command input part 140, and the controller 120 receives and transmits the second closing command to the supply valve 131, so that the supply valve 131 is automatically closed, and thus the target feed liquid stops being input into the delivery pipe 110 from the first input terminal 110A. Based on this, the automatic opening and closing control of the feed valve 131 can be realized.

In one embodiment, the instruction input unit 140 is further configured to input a third opening instruction or a third closing instruction, and the apparatus further includes: a water supply pipe 150 and a water supply valve 151. A water supply pipe 150 is connected to the second input end 110B for supplying sterile water to the delivery pipe 110; the water supply valve 151 is provided to the water supply pipe 150. The controller 120 is connected to the water supply valve 151, and the controller 120 is configured to send a third opening command to the water supply valve 151 to automatically open the water supply valve 151 when receiving the third opening command, or send a third closing command to the water supply valve 151 to automatically close the water supply valve 151 when receiving the third closing command.

For example, before the target feed liquid is transferred, the user may input a third opening command by operating the command input part 140, and the controller 120 receives and transmits the third opening command to the water supply valve 151, so that the water supply valve 151 is automatically opened, and thus the sterilized water is inputted into the transfer pipe 110 from the second input terminal 110B. During the process of delivering the target feed liquid, the user may also input a third closing command by operating the command input part 140, and the controller 120 receives and transmits the third closing command to the water supply valve 151, so that the water supply valve 151 is automatically closed, and thus the sterile water stops being input into the delivery pipe 110 from the second input terminal 110B. This enables automatic opening/closing control of water supply valve 151.

In one embodiment, the apparatus further comprises a first display 160, and the first display 160 is connected to the PH detector 113 and the conductivity detector 114 to display the PH and conductivity, respectively.

Illustratively, the first display 160 may be directly electrically connected to the PH detector 113 and the conductivity detector 114 to receive and display the PH value transmitted from the PH detector 113 and the conductivity transmitted from the conductivity detector 114. The first display 160 may also be electrically connected to the PH detector 113 and the conductivity detector 114 through the controller 120 to receive and display the PH value and the conductivity transmitted by the controller 120. The connection mode of the first display 160 and the PH detector 113 and the conductivity detector 114 can be selected and adjusted according to actual needs, which is not limited in the embodiments of the present application. First display 160 may be a local display, and first display 160 may be a local display that displays the pH and conductivity of the feed solution in delivery pipe 110 in situ at the location of pH detector 113 and conductivity detector 114.

In one embodiment, the apparatus further includes a second display 170, and the second display 170 is connected to the controller 120 for displaying the open and closed states of the discharge valve 111, the ground discharge valve 112, the supply valve 131, and the water supply valve 151. Second display 170 may also display the pH and conductivity of the feed solution within delivery tube 110. The second display 170 may be, for example, a remote display for remote display.

In one embodiment, the apparatus further comprises a delivery pump 180, wherein the delivery pump 180 is disposed in the delivery pipe 110 for delivering the feed liquid in the delivery pipe 110 from the first input end 110A and/or the second input end 110B to the output end 110C.

As shown in fig. 2, the present embodiment further provides a liquid delivery system 1000, which includes an initiating device 200, a target device (not shown in the figure) and the apparatus of any of the above embodiments, wherein the initiating device 200 is in communication with the first input end 110A, and the target device is in communication with the output end 110C.

In an alternative example, the initial facility 200 is a yogurt fermenter, the target facility is a filling facility, and the target feed solution is yogurt. The PH threshold may be selected according to actual needs, for example, if the PH threshold of the yogurt meeting the filling standard is any one of 3.4 to 5 (inclusive), the PH threshold may be any one of 3.4, 4.0, 4.6 and 5.0. Accordingly, the conductivity threshold may be set to the conductivity of the yogurt

In this example, the feed liquid conveying device 100 conveys the yogurt provided by the yogurt fermentation tank to the filling equipment, so that the yogurt enters the filling process, so that the filling equipment can fill the yogurt.

In an alternative example, the starting apparatus 200 is a milk tank, the target apparatus is a sterilization apparatus, such as a pasteurization tank, and the target feed liquid is fresh milk. The PH threshold can be selected according to actual needs, for example, if the PH threshold of fresh milk meeting the sterilization standard is any one of 5.8-6.2 (inclusive), the PH threshold can be any one of 5.8, 6.0 and 6.2. Accordingly, the conductivity threshold may be set to the conductivity of the fresh milk.

In this example, the feed liquid delivery device 100 delivers the fresh milk provided by the milk tank to the sterilization equipment, so that the fresh milk enters the sterilization process, so that the sterilization equipment sterilizes the fresh milk.

Other configurations of the feed liquid delivery device 100 and the feed liquid delivery system 1000 of the above embodiments can be adopted by various technical solutions known to those skilled in the art now and in the future, and will not be described in detail herein.

In the description of the present specification, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present application, and these should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A feed liquid conveying apparatus, comprising:

the discharge valve is arranged at the output end;

the ground discharge valve is arranged at the output end;

2. The apparatus of claim 1, wherein the controller is further configured to send the first close command to the discharge valve and the first open command to the ground discharge valve when the PH is greater than the PH threshold, respectively, such that the discharge valve is closed and the ground discharge valve is open.

3. The apparatus of claim 1, further comprising:

the controller is connected with the conductivity detector and is used for sending the first opening instruction to the discharge valve and sending the first closing instruction to the ground discharge valve when the conductivity is larger than a conductivity threshold value, so that the discharge valve is opened and the ground discharge valve is closed; the controller is further configured to send the first closing instruction to the discharge valve and send the first opening instruction to the ground discharge valve respectively when the conductivity is smaller than the conductivity threshold value, so that the discharge valve is closed and the ground discharge valve is opened.

4. The apparatus of claim 1, further comprising:

the feeding pipe is communicated with the first input end and is used for supplying the target feed liquid to the conveying pipe;

the feeding valve is arranged on the feeding pipe;

the supply pipe is communicated with the first input end, the controller is respectively connected with the supply valve and the instruction input component, and the controller is used for sending a second opening instruction to the supply valve to open the supply valve when receiving the second opening instruction, or sending a second closing instruction to the supply valve to close the supply valve when receiving the second closing instruction.

5. The apparatus according to claim 4, wherein the instruction input means is further configured to input a third opening instruction or a third closing instruction, and the apparatus further comprises:

the water supply pipe is communicated with the second input end and is used for supplying the sterile water to the conveying pipe;

a water supply valve provided in the water supply pipe;

the controller is connected to the water supply valve, and is configured to send the third opening command to the water supply valve to open the water supply valve when receiving the third opening command, or send the third closing command to the water supply valve to close the water supply valve when receiving the third closing command.

6. The apparatus of claim 3, further comprising:

and the first display is respectively connected with the PH detector and the conductivity detector so as to display the PH value and the conductivity.

7. The apparatus of claim 5, further comprising:

and the second display is connected with the controller and is used for displaying the opening and closing states of the discharge valve, the ground discharge valve, the feeding valve and the water supply valve.

8. The apparatus of claim 1, further comprising: and the delivery pump is arranged on the delivery pipe.

9. A fluid delivery system comprising an initiator device, a target device and the apparatus of any one of claims 1 to 8, the initiator device being in communication with the first input and the target device being in communication with the output.

10. The system according to claim 9, wherein the initial equipment is a yogurt fermenter, the target equipment is filling equipment, the target material liquid is yogurt, and the PH threshold is any value between 3.4 and 5; or the initial equipment is a milk tank, the target equipment is sterilization equipment, the target feed liquid is fresh milk, and the pH threshold value is any value between 5.8 and 6.2.