CN113588396A - COD digestion system and use method thereof - Google Patents
COD digestion system and use method thereof Download PDFInfo
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- CN113588396A CN113588396A CN202110773580.8A CN202110773580A CN113588396A CN 113588396 A CN113588396 A CN 113588396A CN 202110773580 A CN202110773580 A CN 202110773580A CN 113588396 A CN113588396 A CN 113588396A
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- heating
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- cod digestion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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Abstract
The invention discloses a COD digestion system and a use method thereof, and the COD digestion system comprises an equipment shell, wherein a working hole is formed in the equipment shell, a control circuit and a timing unit are arranged in the equipment shell, and the control circuit is respectively and electrically connected with a heating part and the timing unit. The heating wire is wound on the outer wall of the heating groove, so that the whole heating groove is arranged in a heated environment, and the heating temperature of each area of the heating groove is more uniform. So when using, insert the container of dress sample in the heating tank, the sample degree of being heated of different positions is comparatively unanimous to improve the uniformity, accuracy and the stability of testing result, and keep warm through the glass cotton cloth that this technical scheme disclosed, heat preservation cotton, insulate through insulating cement and prevent the weeping and fixed winding heater strip, make it more energy-conserving through keeping warm.
Description
Technical Field
The invention relates to the technical field of COD digestion, in particular to a COD digestion system and a use method thereof.
Background
COD is chemical oxygen consumption, which is the amount of oxygen consumed by oxidizing and decomposing oxidizable substances (such as organic substances, nitrite salts, ferrous salts, sulfides, and the like) in water by using chemical oxidants (such as potassium permanganate, and the like) and then calculating the amount of oxygen consumed according to the amount of the remaining oxidants. COD is an important index for representing the degree of water pollution, and is mainly used for measuring the content of organic substances in water, and the smaller the value is, the lighter the degree of water pollution is.
In the current COD test, a COD digestion instrument is usually used to heat a reaction solution containing a sample and an oxidant, so that the reaction solution and the oxidant undergo an oxidation-reduction reaction to accelerate digestion of the sample, thereby achieving complete oxidation of organic substances in the sample, and further determining chemical oxygen demand of the sample.
Present COD clears up appearance basic structure and includes shell, heating cabinet, heater wire, and wherein, the heater wire is arranged in the shell, and the heater wire is (utilizes the resistance principle of generating heat) direct mount at the bottom outer wall of heating cabinet, and the heating method is: a plurality of containers containing different reaction solutions are placed on a heating box, and heat is transferred to the containers through the heating box when a heating wire is electrified to generate heat. The heating mode has the defects that the temperature of the middle area at the bottom of the heating box is high, the temperature of other areas is low, the heating temperature between the sample placed in the middle of the heating box and the sample placed at the edge is different, and the temperature difference is at least more than 3 degrees, so that the oxidation digestion degrees of different samples are inconsistent in the same detection process, and the consistency, the accuracy and the stability of a test result are influenced.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the technical scheme that the COD digestion system and the use method thereof comprise an equipment shell, wherein the equipment shell is provided with a working hole, the working hole is provided with a heating groove, and the heating groove is positioned in the equipment shell and is provided with a heating and heat-preserving mechanism;
the heating and heat-preserving mechanism comprises: a heating unit, a control circuit, and a timing unit;
the heating part is arranged on the heating groove, the control circuit and the timing unit are arranged in the equipment shell, and the control circuit is electrically connected with the heating part and the timing unit respectively.
Preferably, the heating part includes: winding a heating wire and heat insulation cotton;
the winding heater strip twines on the heating groove, the cotton setting that keeps warm is in heating groove bottom surface and cladding are in on the winding heater strip.
Preferably, the heat preservation cotton is glass silk floss filled in the equipment shell.
Preferably, the heating grooves are made of graphene materials, the number of the heating grooves is 16, and the heating grooves are arranged in a 4-by-4 arrangement mode in the transverse direction and the longitudinal direction.
Preferably, the heating grooves are made of graphene materials, the number of the heating grooves is 9, and the heating grooves are arranged in a 3-by-3 arrangement mode in the transverse direction and the longitudinal direction.
Preferably, the working digestion of the heating tank is carried out by condensing circulation through external air cooling.
Preferably, the upper end face of the heating groove is provided with a heat-conducting plate, the heat-conducting plate is mounted on the acting hole, and the heat-conducting plate is made of graphene.
Preferably, a timing control button is arranged on the timing unit, and the timing control button is divided into a 120-second timing key, a fine adjustment plus key and a fine adjustment minus key.
Preferably, glass fiber cotton cloth is arranged between the heating groove and the winding heating wire, the glass fiber cotton cloth is adhered to the heating groove through insulating glue, a mica sheet is arranged between the winding heating wire and the heat insulation cotton, and the mica sheet is connected to the winding heating wire through insulating glue.
Compared with the prior art, the heating groove has the advantages and positive effects that the heating wire is wound on the outer wall of the heating groove, so that the whole heating groove is placed in a heated environment, and the heating temperature of each area of the heating groove is more uniform. So when using, insert the container of dress sample in the heating tank, the sample degree of being heated of different positions is comparatively unanimous to improve the uniformity, accuracy and the stability of testing result, and keep warm through the glass cotton cloth that this technical scheme disclosed, heat preservation cotton, insulate through insulating cement and prevent the weeping and fixed winding heater strip, make it more energy-conserving through keeping warm.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a perspective view of a COD digestion system and a method for using the same according to the present embodiment;
FIG. 2 is a sectional view of a COD digestion system and a method for using the same according to the embodiment;
FIG. 3 is a partial enlarged view of a COD digestion system and a method for using the same according to the embodiment;
FIG. 4 is a process flow diagram of a COD digestion system and a method for using the same according to the embodiment;
shown in the figure: 1. an equipment housing; 2. a working hole; 3. a heating tank; 4. winding a heating wire; 5. heat preservation cotton; 6. a heat conducting plate; 7. a timing control button; 8. glass fiber cotton cloth; 9. mica sheets; 10. and (4) insulating glue.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
Embodiment 1, as can be seen from fig. 1-4 of the specification, the COD digestion system and the use method thereof in the present scheme include an equipment housing 1, the equipment housing 1 is provided with a work applying hole 2, the work applying hole 2 is provided with a heating tank 3, and the heating tank 3 is arranged inside the equipment housing 1 and is provided with a heating and heat preserving mechanism;
the heating and heat-preserving mechanism comprises: a heating unit, a control circuit, and a timing unit;
the heating part is arranged on the heating groove 3, the control circuit and the timing unit are arranged in the equipment shell 1, and the control circuit is respectively electrically connected with the heating part and the timing unit.
As can be seen from fig. 1 to 4 of the specification, the heating part includes: winding a heating wire 4 and heat insulation cotton 5;
winding heater strip 4 twines on the heating groove 3, the cotton 5 that keeps warm sets up heating groove 3 bottom surface and cladding are in on the winding heater strip 4.
As can be seen from the attached figures 1-4 in the specification, the heat insulation cotton 5 is glass silk floss filled in the equipment shell 1.
As can be seen from fig. 1 to 4 of the specification, the heating grooves 3 are made of graphene materials, the number of the heating grooves 3 is 16, and the heating grooves 3 are arranged in a 4 × 4 arrangement manner in the transverse direction and the longitudinal direction.
As can be seen from the attached figures 1-4 of the specification, the working digestion of the heating tank 3 is carried out by an external air cooling for condensation circulation.
In the scheme, the upper end face of the heating groove 3 is provided with a heat conducting plate 6, the heat conducting plate 6 is installed on the acting hole 2, the heat conducting plate 6 is made of graphene, the timing unit is provided with a timing control button 7, and the timing control button 7 is divided into a 120-second timing key, a fine-tuning plus key and a fine-tuning minus key; heating bath 3 with be provided with glass silk cotton cloth 8 between the winding heater strip 4, glass silk cotton cloth 8 with it is glutinous to glue through insulating cement 10 between the heating bath 3, winding heater strip 4 with be provided with mica sheet 9 between the heat preservation cotton 5, mica sheet 9 with it is connected to glue through insulating cement 10 between the winding heater strip 4.
Example 2, as can be seen from fig. 1 to 4 of the specification, according to the present invention, a COD digestion system and a method for using the same, the heating tank 3 is made of graphene material, the number of the heating tank 3 is 9, the heating tanks 3 are arranged in a 3 × 3 arrangement manner in the transverse direction and the longitudinal direction, and the rest is the same as in example 1;
as can be seen from the attached figure 1 of the specification, the above;
wherein, it is important to point out, at the concrete implementation in-process, to clear up in the sample tube inserts heating tank 3, carry out preset heating time through controlling timing control button 7, control circuit control winding heating silk 4 heats heating tank 3, the in-process of heating keeps warm through the cotton 5 of keeping warm that glass silk floss cloth 8 and glass silk floss made, prevent that unnecessary heat from leaking outward, make the effectual use of heat energy, play energy-conserving effect, carry out the condensation through external air-cooling to the sample tube of disappearing, clear up repeatedly.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (9)
1. The COD digestion system comprises an equipment shell (1), and is characterized in that a working hole (2) is formed in the equipment shell (1), a heating groove (3) is formed in the working hole (2), and a heating and heat-preserving mechanism is arranged in the equipment shell (1) of the heating groove (3);
the heating and heat-preserving mechanism comprises: a heating unit, a control circuit, and a timing unit;
the heating part is arranged on the heating groove (3), the control circuit and the timing unit are arranged in the equipment shell (1), and the control circuit is respectively electrically connected with the heating part and the timing unit.
2. The COD digestion system and the method of using the same according to claim 1, wherein the heating part comprises: winding a heating wire (4) and heat insulation cotton (5);
winding heater strip (4) winding is in on heating groove (3), heat preservation cotton (5) set up heating groove (3) bottom surface and cladding are in on winding heater strip (4).
3. The COD digestion system and the use method thereof according to the claim 1, characterized in that the heat preservation cotton (5) is glass silk floss filled inside the equipment shell (1).
4. The COD digestion system and the use method thereof according to claim 1, characterized in that the heating tanks (3) are made of graphene materials, the number of the heating tanks (3) is 16, and the heating tanks (3) are arranged in a 4 x 4 arrangement in the transverse direction and the longitudinal direction.
5. The COD digestion system and the use method thereof according to claim 1, characterized in that the heating tanks (3) are made of graphene materials, the number of the heating tanks (3) is 9, and the heating tanks (3) are arranged in a 3 x 3 arrangement in the transverse direction and the longitudinal direction.
6. The COD digestion system and the use method thereof according to the claim 1, characterized in that the working digestion of the heating tank (3) adopts external air cooling for condensation circulation.
7. The COD digestion system and the use method thereof according to the claim 1, characterized in that the upper end face of the heating tank (3) is provided with a heat conducting plate (6), the heat conducting plate (6) is installed on the working hole (2), and the heat conducting plate (6) is made of graphene.
8. The COD digestion system and the use method thereof according to the claim 1, characterized in that the timing unit is provided with a timing control button (7), and the timing control button (7) is divided into a 120 second timing key, a fine adjustment plus key and a fine adjustment minus key.
9. The COD digestion system and the use method thereof according to claim 2, characterized in that a glass fiber cotton cloth (8) is arranged between the heating tank (3) and the winding heating wire (4), the glass fiber cotton cloth (8) is adhered to the heating tank (3) through an insulating glue (10), a mica sheet (9) is arranged between the winding heating wire (4) and the heat preservation cotton (5), and the mica sheet (9) is adhered to the winding heating wire (4) through the insulating glue (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110773580.8A CN113588396A (en) | 2021-07-08 | 2021-07-08 | COD digestion system and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110773580.8A CN113588396A (en) | 2021-07-08 | 2021-07-08 | COD digestion system and use method thereof |
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| Publication Number | Publication Date |
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| CN113588396A true CN113588396A (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110773580.8A Pending CN113588396A (en) | 2021-07-08 | 2021-07-08 | COD digestion system and use method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201248146Y (en) * | 2008-03-24 | 2009-05-27 | 深圳深爱半导体有限公司 | Heating cylinder |
| CN202939084U (en) * | 2012-11-22 | 2013-05-15 | 赵爱国 | COD (Chemical Oxygen Demand) digestion instrument |
| US20150168366A1 (en) * | 2013-12-16 | 2015-06-18 | Endress + Hauser Conducta Gesellschaft für Mess-und Regeltechnik mbH + Co. KG | Digestion reactor and analytical device for determining a digestion parameter of a liquid sample |
| CN206177694U (en) * | 2016-11-17 | 2017-05-17 | 厦门科仪检测技术有限公司 | Airtight quick digestion device |
| CN208705155U (en) * | 2018-08-28 | 2019-04-05 | 江苏佳信检测技术有限公司 | Graphite clears up instrument |
| CN209858321U (en) * | 2019-03-23 | 2019-12-27 | 浙江杭康检测技术有限公司 | Heating assembly for digestion and extraction |
-
2021
- 2021-07-08 CN CN202110773580.8A patent/CN113588396A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201248146Y (en) * | 2008-03-24 | 2009-05-27 | 深圳深爱半导体有限公司 | Heating cylinder |
| CN202939084U (en) * | 2012-11-22 | 2013-05-15 | 赵爱国 | COD (Chemical Oxygen Demand) digestion instrument |
| US20150168366A1 (en) * | 2013-12-16 | 2015-06-18 | Endress + Hauser Conducta Gesellschaft für Mess-und Regeltechnik mbH + Co. KG | Digestion reactor and analytical device for determining a digestion parameter of a liquid sample |
| CN206177694U (en) * | 2016-11-17 | 2017-05-17 | 厦门科仪检测技术有限公司 | Airtight quick digestion device |
| CN208705155U (en) * | 2018-08-28 | 2019-04-05 | 江苏佳信检测技术有限公司 | Graphite clears up instrument |
| CN209858321U (en) * | 2019-03-23 | 2019-12-27 | 浙江杭康检测技术有限公司 | Heating assembly for digestion and extraction |
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Application publication date: 20211102 |