CN210720425U - Nitrogen determination instrument with waste liquid treatment function - Google Patents
Nitrogen determination instrument with waste liquid treatment function Download PDFInfo
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- CN210720425U CN210720425U CN201921626944.4U CN201921626944U CN210720425U CN 210720425 U CN210720425 U CN 210720425U CN 201921626944 U CN201921626944 U CN 201921626944U CN 210720425 U CN210720425 U CN 210720425U
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- pipe
- waste liquid
- collecting pipe
- alkali
- acid
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Abstract
The utility model discloses a nitrogen determination instrument with waste liquid treatment function, including nitrogen determination instrument body, waste liquid export and purifier, purifier includes the support, the U-shaped pipe, the waste liquid collecting pipe, pointer PH meter and connecting pipe, the U-shaped pipe rigid coupling is on the support, sliding connection has the piston in the U-shaped pipe, the U-shaped pipe includes the acidizing fluid collecting pipe that is located the left part and the alkali lye collecting pipe that is located the right part, all be equipped with the rope hole on the lateral wall of acidizing fluid collecting pipe and alkali lye collecting pipe upper end, all the activity wears to be equipped with the stay cord in the rope hole, the stay cord is located the one end and the piston rigid coupling in the U-shaped pipe, the left side of waste liquid collecting pipe bottom is connected with acidizing fluid collecting pipe top through the acidizing fluid branch pipe, the right side of waste liquid collecting pipe bottom is connected with alkali lye collecting pipe top through the alkali lye branch pipe, the right end is fixedly connected with the upper part of the alkali liquor collecting pipe.
Description
Technical Field
The utility model belongs to the technical field of the azotometer, particularly, be an azotometer with waste liquid processing function.
Background
The kjeldahl nitrogen determination instrument is an instrument for calculating the content of protein by measuring the content of nitrogen in a sample according to the principle that the content of nitrogen in the protein is constant. The method for measuring and calculating the protein content is called Kjeldahl method, so the method is called Kjeldahl apparatus, also called nitrogen apparatus, protein measuring apparatus and crude protein measuring apparatus.
The present domestic full-automatic nitrogen determination instrument does not consider the problem of waste liquid purification in the invention. Most of reagents used for laboratory to make nitrogen content are strong acid and strong base samples. Collection and recovery are difficult, and the injury to personnel is easy to cause.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a nitrogen determination instrument with waste liquid treatment function which solves the problems in the prior art. In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
a nitrogen determination instrument with a waste liquid treatment function comprises a nitrogen determination instrument body, a waste liquid outlet positioned at the bottom side of the nitrogen determination instrument body and a purification device positioned below the waste liquid outlet, wherein the purification device comprises a support, a U-shaped pipe, a waste liquid collecting pipe, a pointer type PH meter and a connecting pipe; the U-shaped pipe is fixedly connected to the support, a piston is connected to the U-shaped pipe in a sliding mode, the U-shaped pipe comprises an acid liquid collecting pipe located on the left portion and an alkali liquid collecting pipe located on the right portion, rope holes are formed in the side walls of the upper ends of the acid liquid collecting pipe and the upper end of the alkali liquid collecting pipe, pull ropes movably penetrate through the rope holes, one end, located in the U-shaped pipe, of each pull rope is fixedly connected with the piston, a liquid discharging port is formed in the bottom end of the alkali liquid collecting pipe; the waste liquid collecting pipe is positioned above the U-shaped pipe and right below the waste liquid outlet, the left side of the bottom end of the waste liquid collecting pipe is hermetically connected with the top end of the acid liquid collecting pipe through an acid liquid branch pipe, a first valve is arranged on the acid liquid branch pipe, the right side of the bottom end of the waste liquid collecting pipe is hermetically connected with the top end of the alkali liquid collecting pipe through an alkali liquid branch pipe, and a second valve is arranged on the alkali liquid branch pipe; a detection pointer of the pointer type PH meter is fixedly inserted into the alkali liquor branch pipe and extends into the alkali liquor collecting pipe; the left end of the connecting pipe is fixedly communicated with the upper part of the acid liquor collecting pipe, the right end of the connecting pipe is fixedly connected with the upper part of the alkali liquor collecting pipe, and a third valve is arranged on the connecting pipe.
Further limiting, the acid liquor collecting pipe and the alkali liquor collecting pipe are of an integrated structure.
Further, a sealing ring is arranged in the rope hole, and the pull rope is tightly matched with the sealing ring and used for preventing liquid in the U-shaped pipe from leaking from the rope hole.
Further, the first valve is arranged at one end of the acid liquor branch pipe close to the waste liquid collecting pipe, the second valve is arranged at one end of the alkali liquor branch pipe close to the waste liquid collecting pipe, and the third valve is arranged at one end of the connecting pipe close to the acid liquor collecting pipe.
Further limiting, the connecting pipes are provided with a plurality of connecting pipes, the left ends of the connecting pipes are fixedly communicated with the upper part of the acid liquor collecting pipe, the right ends of the connecting pipes are fixedly connected with the upper part of the alkali liquor collecting pipe, and the connecting pipes are provided with third valves.
Further limiting, a fourth valve is arranged at one end, close to the acid liquor branch pipe, of the acid liquor collecting pipe, and the fourth valve is higher than the rope hole.
Further limiting, the U-shaped pipe, the waste liquid collecting pipe, the acid liquor branch pipe, the alkali liquor branch pipe and the connecting pipe are all transparent glass pipes, and the piston and the pull rope are all made of corrosion-resistant materials.
Has the advantages that:
1. acid waste liquid in the nitrogen determinator is collected in the acid liquid collecting pipe through the waste liquid collecting pipe and the acid liquid branch pipe, alkaline waste liquid in the nitrogen determinator is collected in the alkaline liquid collecting pipe through the waste liquid collecting pipe and the alkaline liquid branch pipe, and waste liquid discharged from the nitrogen determinator is collected in a classified mode;
2. pulling the stay cord in the acidizing fluid collecting pipe, the piston moves gradually towards acidizing fluid collecting pipe upper portion, and acid waste liquid flows into in gradually the alkali lye collecting pipe through the connecting pipe, and the alkaline waste liquid of collecting in the acidizing fluid collecting pipe is gradually neutralized, watches through pointer type PH meter, closes the third valve door on the connecting pipe when the waste liquid PH value in the alkali lye collecting pipe reaches 7 or is close to 7, opens the flowing back valve at last, and the waste liquid that is neutralized is discharged from the leakage fluid dram.
Drawings
The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the purification device of the present invention;
the main element symbols are as follows:
the nitrogen determination instrument comprises a nitrogen determination instrument body 1, a waste liquid outlet 2, a purification device 3, a support 5, a piston 6, an acid liquid collecting pipe 7, an alkali liquid collecting pipe 8, a rope hole 9, a pull rope 10, a liquid discharging port 11, a liquid discharging valve 12, a waste liquid collecting pipe 13, an acid liquid branch pipe 14, a first valve 15, an alkali liquid branch pipe 16, a second valve 17, a pointer type PH meter 18, a detection pointer 19, a connecting pipe 20, a third valve 21 and a fourth valve 22.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.
As shown in fig. 1 and fig. 2, a nitrogen analyzer with waste liquid treatment function comprises a nitrogen analyzer body 1 and a waste liquid outlet 2 located at the bottom side of the nitrogen analyzer body 1, wherein the connection mode and the arrangement mode between the above components adopt the currently common mode, and are not more detailed here, the nitrogen analyzer further comprises a purification device 3 located below the waste liquid outlet 2, and the purification device 3 comprises a bracket 5, a U-shaped pipe, a waste liquid collecting pipe 13, a pointer type PH meter 18 and a connecting pipe 20; the U-shaped pipe is fixedly connected to the support 5, a piston 6 is connected to the U-shaped pipe in a sliding mode, the U-shaped pipe comprises an acid liquid collecting pipe 7 located at the left portion and an alkali liquid collecting pipe 8 located at the right portion, the acid liquid collecting pipe 7 and the alkali liquid collecting pipe 8 are of an integrated structure, rope holes 9 are formed in the side walls of the upper ends of the acid liquid collecting pipe 7 and the alkali liquid collecting pipe 8, pull ropes 10 penetrate through the rope holes 9 movably, one end, located in the U-shaped pipe, of each pull rope 10 is fixedly connected with the piston 6, a sealing ring is arranged in each rope hole 9, the pull ropes 10 are tightly matched with the sealing rings and used for preventing liquid in the U-shaped pipe from leaking out of the rope holes 9, a; the waste liquid collecting pipe 13 is positioned above the U-shaped pipe and right below the waste liquid outlet 2, the left side of the bottom end of the waste liquid collecting pipe 13 is hermetically connected with the top end of the acid liquid collecting pipe 7 through an acid liquid branch pipe 14, the acid liquid branch pipe 14 is provided with a first valve 15, the right side of the bottom end of the waste liquid collecting pipe 13 is hermetically connected with the top end of the alkali liquid collecting pipe 8 through an alkali liquid branch pipe 16, and the alkali liquid branch pipe 16 is provided with a; a detection pointer 19 of the pointer type PH meter 18 is fixedly inserted into the alkali liquor branch pipe 14 and extends into the alkali liquor collecting pipe 8; the left end of the connecting pipe 20 is fixedly communicated with the upper part of the acid liquor collecting pipe 7, the right end of the connecting pipe 20 is fixedly connected with the upper part of the alkali liquor collecting pipe 8, and a third valve 21 is arranged on the connecting pipe 20.
Preferably, the first valve 15 is disposed at one end of the acid solution branch pipe 14 close to the waste liquid collecting pipe 13, the second valve 17 is disposed at one end of the alkali solution branch pipe 16 close to the waste liquid collecting pipe 13, and the third valve 21 is disposed at one end of the connecting pipe 20 close to the acid solution collecting pipe 7.
Preferably, the connection pipe 20 is obliquely disposed, and the left end of the connection pipe 20 is higher than the right end.
Preferably, a fourth valve 22 is arranged at one end of the acid liquor collecting pipe 7 close to the acid liquor branch pipe 14, and the fourth valve 22 is higher than the rope hole 9.
Preferably, the U-shaped pipe, the waste liquid collecting pipe 13, the acid liquor branch pipe 14, the alkali liquor branch pipe 16 and the connecting pipe 20 are all transparent glass pipes, and the piston 6 and the pull rope 10 are made of corrosion-resistant materials.
The working principle of waste liquid collection is as follows: when collecting the acidic waste liquid, opening the first valve 15 and the fourth valve 22, closing the second valve 17, the third valve 21 and the liquid discharge valve 12, wherein the acidic waste liquid in the nitrogen determinator body 1 flows out from the waste liquid outlet 2 and is collected in the acid liquid collecting pipe 7 through the waste liquid collecting pipe 13 and the acid liquid branch pipe 14, when collecting the alkaline waste liquid, opening the second valve 17, closing the first valve 15 and the liquid discharge valve 12, wherein the alkaline waste liquid in the nitrogen determinator body 1 flows out from the waste liquid outlet 2 and is collected in the alkaline liquid collecting pipe 8 through the waste liquid collecting pipe 13 and the alkaline liquid branch pipe 16, and the classified collection of the waste liquid discharged from the nitrogen determinator body 1 is completed;
when the waste liquid collected in the acid liquor collecting pipe 7 and the alkali liquor collecting pipe 8 is more, the waste liquid is discharged after being purified, and the specific purification principle is as follows: closing the fourth valve 22, opening a third valve 21, namely, communicating the acid liquid collecting pipe 7 with the alkali liquid collecting pipe 8 through a connecting pipe 20, at the moment, pulling the pull rope 10 in the acid liquid collecting pipe 7, further moving the piston 6 towards the upper part of the acid liquid collecting pipe 7, and introducing the acid waste liquid in the acid liquid collecting pipe 7 into the alkali liquid collecting pipe 8 through a connecting pipe 20 to realize neutralization reaction, if the change of the real-time pH value towards the neutral pH value is slow according to the real-time pH value displayed by watching the pointer type pH meter 18, opening a third valve 21, at the moment, increasing the flow of the acid waste liquid in the acid liquid collecting pipe 7 to the alkali liquid collecting pipe 8, further accelerating the change of the real-time pH value towards the neutral pH value in the alkali liquid collecting pipe 8, when the pH value in the alkali liquid collecting pipe reaches 7 or approaches 7, closing all the third valves 21, and finally opening, and discharging the completely neutralized waste liquid in the alkali liquor collecting pipe 8.
It is right above that the utility model provides a azotometer with waste liquid processing function introduces in detail. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (7)
1. A nitrogen determination instrument with a waste liquid treatment function comprises a nitrogen determination instrument body and a waste liquid outlet positioned at the bottom side of the nitrogen determination instrument body, and is characterized by further comprising a purification device positioned below the waste liquid outlet, wherein the purification device comprises a support, a U-shaped pipe, a waste liquid collecting pipe, a pointer type PH meter and a connecting pipe;
the U-shaped pipe is fixedly connected to the support, a piston is connected to the U-shaped pipe in a sliding mode, the U-shaped pipe comprises an acid liquid collecting pipe located on the left portion and an alkali liquid collecting pipe located on the right portion, rope holes are formed in the side walls of the upper ends of the acid liquid collecting pipe and the upper end of the alkali liquid collecting pipe, pull ropes movably penetrate through the rope holes, one end, located in the U-shaped pipe, of each pull rope is fixedly connected with the piston, a liquid discharging port is formed in the bottom end of the alkali liquid collecting pipe;
the waste liquid collecting pipe is positioned above the U-shaped pipe and right below the waste liquid outlet, the left side of the bottom end of the waste liquid collecting pipe is hermetically connected with the top end of the acid liquid collecting pipe through an acid liquid branch pipe, a first valve is arranged on the acid liquid branch pipe, the right side of the bottom end of the waste liquid collecting pipe is hermetically connected with the top end of the alkali liquid collecting pipe through an alkali liquid branch pipe, and a second valve is arranged on the alkali liquid branch pipe;
a detection pointer of the pointer type PH meter is fixedly inserted into the alkali liquor branch pipe and extends into the alkali liquor collecting pipe;
the left end of the connecting pipe is fixedly communicated with the upper part of the acid liquor collecting pipe, the right end of the connecting pipe is fixedly connected with the upper part of the alkali liquor collecting pipe, and a third valve is arranged on the connecting pipe.
2. The nitrogen determinator with waste liquid processing function of claim 1, wherein, the acid liquor collection pipe and the alkali liquor collection pipe are of an integrated structure.
3. The nitrogen determinator with waste liquid treatment function of claim 1, wherein a sealing ring is arranged in the rope hole, and the pull rope is tightly matched with the sealing ring.
4. The nitrogen determinator with waste liquid treatment function of claim 1, wherein the first valve is arranged at one end of the acid liquor branch pipe close to the waste liquid collection pipe, the second valve is arranged at one end of the alkali liquor branch pipe close to the waste liquid collection pipe, and the third valve is arranged at one end of the connecting pipe close to the acid liquor collection pipe.
5. The apparatus of claim 1, wherein the connecting tube is disposed in an inclined manner, and the left end of the connecting tube is higher than the right end of the connecting tube.
6. The nitrogen determinator with waste liquid processing function of claim 1, wherein an end of the acid liquor collection pipe close to the acid liquor branch pipe is provided with a fourth valve, and the fourth valve is higher than the rope hole.
7. The nitrogen determinator with waste liquid treatment function as claimed in claim 1, wherein the U-shaped pipe, the waste liquid collection pipe, the acid liquor branch pipe, the alkali liquor branch pipe and the connecting pipe are all transparent glass pipes, and the piston and the pull rope are all made of corrosion-resistant materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921626944.4U CN210720425U (en) | 2019-09-27 | 2019-09-27 | Nitrogen determination instrument with waste liquid treatment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921626944.4U CN210720425U (en) | 2019-09-27 | 2019-09-27 | Nitrogen determination instrument with waste liquid treatment function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210720425U true CN210720425U (en) | 2020-06-09 |
Family
ID=70937428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921626944.4U Expired - Fee Related CN210720425U (en) | 2019-09-27 | 2019-09-27 | Nitrogen determination instrument with waste liquid treatment function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210720425U (en) |
-
2019
- 2019-09-27 CN CN201921626944.4U patent/CN210720425U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 Termination date: 20210927 |
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| CF01 | Termination of patent right due to non-payment of annual fee |