PH value detection device and acid hydrolysis instrument

Abstract

The utility model provides a pH value detection device and an acid hydrolysis instrument, and relates to the technical field of acid hydrolysis instruments. The utility model provides a pH value detection device. The pH value detection device comprises a hydrochloric acid supply assembly, a pure water supply assembly, a hydrolysis container, a pH testing device and a waste liquid discharge pump, the hydrochloric acid supply assembly and the pure water supply assembly are respectively in fluid communication with the hydrolysis container; the hydrolysis container, the pH testing device and the waste liquid discharge pump are in fluid communication in sequence. By adopting the pH value detection device, artificial litmus paper can be replaced for detection, and cleaning and pH value detection of the hydrolysis container can be safely and efficiently completed after acid hydrolysis.

Description

Technical Field

[0001] This utility model relates to the field of acid hydrolysis instrument technology, and in particular to a pH value detection device and an acid hydrolysis instrument. Background Technology

[0002] With the development of biochemical experimental techniques, acid hydrolysis has become a common method for decomposing complex macromolecules. In existing techniques, the hydrolysis vessel typically requires thorough cleaning after the process to remove residual acid and other impurities. This process usually requires the operator to manually test with blue litmus paper multiple times to confirm that the cleaning has reached a neutral pH. This method relies on the operator's experience and judgment, is not only time-consuming and labor-intensive, but also carries safety risks due to improper operation.

[0003] In existing technologies, the limited detection frequency of blue litmus paper leads to cumbersome operations due to frequent testing, potentially resulting in excessive washing and wasting water. Furthermore, over-washing can cause sample loss, affecting the final experimental results. Therefore, how to efficiently and safely complete the washing process has become a pressing issue that needs to be addressed in current technologies. Utility Model Content

[0004] The purpose of this invention is to provide a pH value detection device and an acid hydrolysis instrument to alleviate the technical problem that pH detection is difficult to complete cleaning efficiently and safely after acid hydrolysis.

[0005] In a first aspect, the pH value detection device provided by this utility model includes: a hydrochloric acid supply component, a pure water supply component, a hydrolysis container, a pH testing device, and a waste liquid pump.

[0006] The hydrochloric acid supply component and the pure water supply component are respectively in fluid communication with the hydrolysis container;

[0007] The hydrolysis container, the pH testing device, and the waste liquid pump are sequentially connected in fluid connection.

[0008] In conjunction with the first aspect, the present invention provides a first possible implementation of the first aspect, wherein the hydrochloric acid supply component and the pure water supply component are respectively installed on the cover, the cover is located above the opening of the hydrolysis container, and the cover is tractively connected to a lifting drive component.

[0009] In conjunction with the first possible implementation of the first aspect, the present invention provides a second possible implementation of the first aspect, wherein the cover or the hydrolysis container is equipped with a heating device.

[0010] In conjunction with the first possible implementation of the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the hydrochloric acid supply assembly includes a hydrochloric acid connector for connecting to a hydrochloric acid container.

[0011] The pure water supply assembly includes a pure water connector for connecting to a pure water container;

[0012] The hydrochloric acid connector and the pure water connector are respectively in fluid communication with the liquid addition pump.

[0013] In conjunction with the third possible implementation of the first aspect, this utility model provides a fourth possible implementation of the first aspect, wherein the cover is equipped with a liquid filling pipe, and the liquid filling pump is in fluid communication with the liquid filling pipe.

[0014] In conjunction with the third possible implementation of the first aspect, this utility model provides a fifth possible implementation of the first aspect, wherein a first control valve is installed between the hydrochloric acid connector and the liquid dispensing pump, and a second control valve is installed between the pure water connector and the liquid dispensing pump.

[0015] In conjunction with the fifth possible implementation of the first aspect, this utility model provides a sixth possible implementation of the first aspect, wherein the first control valve, the second control valve, the liquid adding pump, and the waste liquid discharging pump are respectively connected to the control unit.

[0016] In conjunction with the sixth possible implementation of the first aspect, this utility model provides a seventh possible implementation of the first aspect, wherein the pH testing device is connected to a signal acquisition unit, and the signal acquisition unit is connected to the control unit.

[0017] In conjunction with the seventh possible implementation of the first aspect, this utility model provides an eighth possible implementation of the first aspect, wherein the pH testing device includes a pH electrode detachably connected to the chassis, and the pH electrode is connected to the signal acquisition unit.

[0018] Secondly, the acid hydrolyzer provided by this utility model is equipped with the pH value detection device described in the first aspect.

[0019] The present invention provides the following beneficial effects: by using a hydrochloric acid supply component and a pure water supply component that are respectively in fluid communication with the hydrolysis container, the hydrolysis container, the pH testing device and the waste liquid pump are in fluid communication in sequence, which can replace artificial litmus paper for detection and can safely and efficiently complete the cleaning of the hydrolysis container and pH value detection after acid hydrolysis.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the piping of the pH detection device provided in this embodiment of the utility model;

[0023] Figure 2 A front view of the pH detection device provided in an embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of a pH detection device provided in an embodiment of the present invention.

[0025] Icons: 001 - Hydrochloric acid supply assembly; 101 - Hydrochloric acid connector; 102 - First control valve; 002 - Pure water supply assembly; 201 - Pure water connector; 202 - Second control valve; 003 - Hydrolysis container; 004 - pH testing device; 401 - pH electrode; 402 - Connector; 005 - Waste liquid pump; 006 - Cover; 007 - Drain pipe; 008 - Hydrochloric acid container; 009 - Pure water container; 010 - Liquid addition pump; 011 - Liquid addition pipe; 012 - Chassis; 121 - Socket; 013 - Drain interface. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are only used to describe differences in name and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] like Figure 1 As shown, the pH detection device provided in this embodiment of the present invention includes: a hydrochloric acid supply component 001, a pure water supply component 002, a hydrolysis container 003, a pH testing device 004, and a waste liquid pump 005; the hydrochloric acid supply component 001 and the pure water supply component 002 are respectively in fluid communication with the hydrolysis container 003; the hydrolysis container 003, the pH testing device 004, and the waste liquid pump 005 are in fluid communication in sequence.

[0030] Hydrochloric acid solution is supplied to the hydrolysis container 003 via the hydrochloric acid supply component 001, allowing the sample to undergo hydrolysis within the container. Subsequently, pure water is introduced into the hydrolysis container 003 via the pure water supply component 002 to rinse the interior. After one rinse, the waste liquid pump 005 draws the liquid from the hydrolysis container 003 and passes it through the pH testing device 004, which detects the pH value of the hydrolyzed waste liquid. This rinsing process is repeated until the pH value of the hydrolyzed waste liquid reaches a near-neutral state.

[0031] The pH detection device described in this embodiment can replace artificial litmus paper for detection, and can safely and efficiently complete the cleaning of the hydrolysis container 003 and pH detection after acid hydrolysis.

[0032] like Figure 1 , Figure 2and Figure 3 As shown in the embodiment of this utility model, the hydrochloric acid supply component 001 and the pure water supply component 002 are respectively installed on the cover 006. The cover 006 is located above the opening of the hydrolysis container 003, and the cover 006 is connected to the lifting drive component.

[0033] When the cover 006 is driven down by the lifting drive mechanism and closes the opening of the hydrolysis container 003, the hydrolysis container 003 can be closed by the cover 006.

[0034] Furthermore, the cover 006 or the hydrolysis container 003 is equipped with a heating device, which can heat the hydrolysate in the hydrolysis container 003, thereby ensuring that the hydrolysis reaction proceeds smoothly at a suitable temperature.

[0035] like Figure 1 and Figure 2 As shown, the hydrochloric acid supply assembly 001 includes a hydrochloric acid connector 101 for connecting to the hydrochloric acid container 008; the pure water supply assembly 002 includes a pure water connector 201 for connecting to the pure water container 009; the hydrochloric acid connector 101 and the pure water connector 201 are respectively in fluid communication with the liquid addition pump 010, and the liquid addition pump 010 can drive hydrochloric acid or pure water into the hydrolysis container 003.

[0036] The cover 006 is equipped with a liquid filling pipe 011, and the liquid filling pump 010 is in fluid communication with the liquid filling pipe 011.

[0037] The outlet of the liquid addition pump 010 is in fluid communication with the liquid addition pipe 011, allowing hydrochloric acid or pure water to be introduced into the hydrolysis container 003 via the liquid addition pipe 011. Furthermore, the cover 006 can be connected to a drain pipe 007. Driving the cover 006 to rise or fall simultaneously moves both the drain pipe 007 and the liquid addition pipe 011. With the cover 006 covering the hydrolysis container 003, the drain pipe 007 is inserted into the bottom of the inner cavity of the hydrolysis container 003 to ensure that the hydrolysis waste liquid can be drawn out through the drain pipe 007.

[0038] like Figure 1 As shown, a first control valve 102 is installed between the hydrochloric acid connector 101 and the liquid dispensing pump 010, and a second control valve 202 is installed between the pure water connector 201 and the liquid dispensing pump 010.

[0039] The first control valve 102 and the second control valve 202 can be controlled to open one and close the other, thereby allowing the selective delivery of pure water or hydrochloric acid solution into the hydrolysis container 003. Furthermore, both the first control valve 102 and the second control valve 202 can be configured as flow control valves, allowing the opening degrees of the first control valve 102 and the second control valve 202 to be adjusted, thereby enabling the pure water and hydrochloric acid solution to be delivered to the hydrolysis container 003 in a specific ratio.

[0040] Furthermore, the first control valve 102, the second control valve 202, the liquid addition pump 010, and the waste liquid discharge pump 005 are respectively connected to the control unit. The control unit can execute a specific control program in the memory to introduce pure water into the hydrolysis container 003 after the hydrolysis heating is completed. After repeated rinsing until the pH value is 7, the system can replace manual rinsing and realize automatic rinsing and pH value detection.

[0041] like Figure 2 and Figure 3 As shown, the pH testing device 004 is connected to the signal acquisition unit, which is connected to the control unit.

[0042] In this embodiment, the pH testing device 004 includes a pH electrode 401 detachably connected to the chassis 012, and the pH electrode 401 is connected to the signal acquisition unit. The pH electrode 401 is detachably connected using methods such as snap-fit, threaded fit, or interference fit, facilitating disassembly and maintenance. Furthermore, the pH electrode 401 is connected to a connector 402 via a signal line. The chassis 012 is equipped with a socket 121 for connecting to the signal acquisition unit, and the connector 402 connects to the socket 121, thereby enabling the transmission of the test signal from the pH electrode 401 to the signal acquisition unit.

[0043] In addition, the chassis 012 is equipped with a drain port 013. The outlet of the waste liquid pump 005 is connected to the drain port 013 through a pipeline. The waste liquid after rinsing is finally discharged through the drain port 013.

[0044] The acid hydrolyzer provided in this embodiment is equipped with the pH value detection device described in the above embodiments. The acid hydrolyzer has the technical effects of the pH value detection device, which will not be repeated here.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pH value detection device, characterized in that, include: Hydrochloric acid supply assembly (001), pure water supply assembly (002), hydrolysis container (003), pH testing device (004), and waste liquid pump (005); The hydrochloric acid supply component (001) and the pure water supply component (002) are respectively in fluid communication with the hydrolysis container (003); The hydrolysis container (003), the pH testing device (004), and the waste liquid pump (005) are in sequential fluid communication.

2. The pH detection device according to claim 1, characterized in that, The hydrochloric acid supply assembly (001) and the pure water supply assembly (002) are respectively installed on the cover (006), the cover (006) is located above the opening of the hydrolysis container (003), and the cover (006) is connected to a lifting drive mechanism.

3. The pH detection device according to claim 2, characterized in that, The cover (006) or the hydrolysis container (003) is equipped with a heating device.

4. The pH value detection device according to claim 2, characterized in that, The hydrochloric acid supply assembly (001) includes a hydrochloric acid connector (101) for connecting to a hydrochloric acid container (008); The pure water supply assembly (002) includes a pure water connector (201) for connecting to a pure water container (009); The hydrochloric acid connector (101) and the pure water connector (201) are respectively in fluid communication with the liquid pump (010).

5. The pH detection device according to claim 4, characterized in that, The cover (006) is equipped with a liquid filling pipe (011), and the liquid filling pump (010) is in fluid communication with the liquid filling pipe (011).

6. The pH value detection device according to claim 4, characterized in that, A first control valve (102) is installed between the hydrochloric acid connector (101) and the liquid dispensing pump (010), and a second control valve (202) is installed between the pure water connector (201) and the liquid dispensing pump (010).

7. The pH detection device according to claim 6, characterized in that, The first control valve (102), the second control valve (202), the liquid injection pump (010), and the waste liquid discharge pump (005) are respectively connected to the control unit.

8. The pH detection device according to claim 7, characterized in that, The pH testing device (004) is connected to the signal acquisition unit, and the signal acquisition unit is connected to the control unit.

9. The pH detection device according to claim 8, characterized in that, The pH testing device (004) includes a pH electrode (401) detachably connected to the chassis (012), and the pH electrode (401) is connected to the signal acquisition unit.

10. An acid hydrolysis apparatus, characterized in that, The acid hydrolyzer is equipped with a pH detection device as described in any one of claims 1-9.

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