CN202033244U - Rapid digestion instrument for COD (chemical oxygen demand) testing - Google Patents
Rapid digestion instrument for COD (chemical oxygen demand) testing Download PDFInfo
- Publication number
- CN202033244U CN202033244U CN2011200309943U CN201120030994U CN202033244U CN 202033244 U CN202033244 U CN 202033244U CN 2011200309943 U CN2011200309943 U CN 2011200309943U CN 201120030994 U CN201120030994 U CN 201120030994U CN 202033244 U CN202033244 U CN 202033244U
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- cod
- surrounding edge
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- heating device
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Abstract
The utility model provides a rapid digestion instrument for COD (chemical oxygen demand) testing, and relates to a digestion device for COD chemical oxygen demand testing for water quality, which is used for solving the problems of inconsistent COD digestion degrees and low digestion operating efficiency in the prior art. The rapid digestion instrument comprises a container and a graphite heating device. A condensing reflux device is mounted above the container, the graphite heating device is provided with a plurality of heating holes, and the container is arranged in one of the heating holes. The rapid digestion instrument can be used for processing a plurality of samples simultaneously so that operating efficiency is greatly improved.
Description
Technical field
The utility model relates to a kind of digestion instrument that is used for the chemical oxygen demand COD test of water quality.
Background technology
Traditional chemical oxygen demand (COD) (COD) test need use the electric hot plate heating, and by heat conducting mode, the heating reaction solution quickening clearing up of sample, thereby reaches the oxidation to the organic substance in the sample, and then the chemical oxygen demand (COD) of working sample.
Because the heating-up temperature of electric hot plate is inhomogeneous, the degree that can cause different sample oxidations to be cleared up occurs inconsistent, thereby has influenced precision of test result and stability.Simultaneously, the heating surface (area) (HS of electric hot plate is less, is not suitable for large batch of sample preparation, and work efficiency is low.
The utility model content
Technical problem to be solved in the utility model is: a kind of COD of being used for is provided the quick counteract appearance of test, is used to solve prior art COD and clears up degree varies and cause, clear up the low problem of work efficiency.
In order to solve the problems of the technologies described above, the utility model proposes a kind of quick counteract appearance of the COD of being used for test, comprise container, condensation reflux unit is installed above container, and also comprising on this graphite heating device a plurality of bottoming holes being arranged by the graphite heating device, described container places in the described bottoming hole.Described bottoming hole can be by the recessed groove in surface, also can be that the arc-shaped pot that is recessed into is planar.Shape that should be recessed can provide the solid heating of a plurality of directions to container.
Preferably: the surrounding edge that is provided with setting around the bottoming hole of described graphite heating device.Because the existence of surrounding edge produces a hot air layer at graphite surface, this hot air layer can help to keep stable temperature in the graphite pores, avoids being subjected to the interference of peripheral environment.The surrounding edge surrounding edge helps to prevent the heat dissipation of graphite surface simultaneously, thus energy savings.Can also fix a thermometer in the surrounding edge installed inside in addition, the handled easily personnel observe, and at this moment, surrounding edge plays fixed mount.
Preferably: described container is a flask.
Preferably: described surrounding edge is inserted on the slot of graphite heating device, and adjacent surrounding edge is stitched together.The structure of this splicing can be removed at any time, therefore makes things convenient for testing crew to carry out the choice operation of surrounding edge.
Preferably: described condensation reflux unit comprises cooling water inlet pipe, is provided with the hole of passing for water inlet pipe on described surrounding edge.If surrounding edge is established than higher, can cause the water inlet pipe of condenser circuitous mixed and disorderly, on surrounding edge, establish the hole and can optimize space layout in the surrounding edge, be convenient to operating personnel's operation.
Preferably: described condensation reflux unit is fixing on the top of the shelf.
The beneficial effects of the utility model:
Compared to existing technology, the utility model utilizes good chemical stability of graphite and high efficiency heat-conductive characteristic, produce the quick counteract appearance of making based on graphite heating dress digestion instrument of COD, realized even heating, guarantee the consistance of the heating-up temperature in each reaction vessel; It has improved heat conducting efficient by the design of semi-surrounding type, has quickened the speed of reaction, has shortened the reaction time, and then has improved work efficiency; And realized handling simultaneously a plurality of samples, greatly improved work efficiency.
Description of drawings
Figure is a structure diagram of the present utility model.
Embodiment
The utility model proposes a kind of quick counteract appearance of the COD of being used for test, comprise container, condensation reflux unit is installed above container, and also comprises the graphite heating device, on this graphite heating device a plurality of bottoming holes are arranged, container places in the described bottoming hole.
Example structure of the present utility model as shown in the figure.
This counteract appearance comprises container 4, and this container is a round-bottomed flask.Condensation reflux unit 3 is installed above container 4.Condensation reflux unit 3 comprises condenser pipe 302 and the pipe 303 that is enclosed within outside the condenser pipe 302.
A plurality of bottoming holes 100 are arranged on the graphite heating device 1, and container 4 places in the bottoming hole 100.Be provided with the surrounding edge 2 of setting around the bottoming hole 100 of graphite heating device 1.Because the existence of surrounding edge 2 produces a hot air layer at graphite surface (top of bottoming hole 100), this hot air layer can help to keep stable temperature in the graphite pores, avoids being subjected to the interference of peripheral environment.The surrounding edge surrounding edge helps to prevent the heat dissipation of graphite surface simultaneously, thus energy savings.Can also fix a thermometer in the surrounding edge installed inside in addition, the handled easily personnel observe, and at this moment, surrounding edge plays fixed mount.
Surrounding edge 2 is inserted on the slot of graphite heating device 1, and adjacent surrounding edge is stitched together.The pipe 303 of condensation reflux unit comprises cooling water inlet pipe, and cooling water inlet pipe has water inlet 300, is provided with the hole of passing 200 for water inlet pipe on surrounding edge 2.If surrounding edge is established than higher, can cause the water inlet pipe of condenser circuitous mixed and disorderly, on surrounding edge, establish the hole and can optimize space layout in the surrounding edge, be convenient to operating personnel's operation.Be provided with water delivering orifice 301 on the top of pipe 303.Condensation reflux unit 3 fixing (not shown)s on the top of the shelf.
The using method of the utility model product is as follows:
Get quantity of sample, place round-bottomed flask, add and clear up reagent, connect condensation reflux unit, put it in the bottoming hole, use the heating of graphite heating device to clear up.Finish clear up after, close the graphite heating device.After the cooling, will clear up good sample and take off, and measure its COD value.
Claims (7)
1. a quick counteract appearance that is used for the COD test comprises container, and condensation reflux unit is installed above container, it is characterized in that also comprising the graphite heating device, on this graphite heating device a plurality of bottoming holes is arranged, and described container places in the described bottoming hole.
2. the quick counteract appearance that is used for the COD test according to claim 1 is characterized in that: the surrounding edge that is provided with setting around the bottoming hole of described graphite heating device.
3. the quick counteract appearance that is used for the COD test according to claim 1, it is characterized in that: described container is a flask.
4. the quick counteract appearance that is used for the COD test according to claim 2, it is characterized in that: described surrounding edge is inserted on the slot of graphite heating device, and adjacent surrounding edge is stitched together.
5. the quick counteract appearance that is used for the COD test according to claim 2, it is characterized in that: described condensation reflux unit comprises cooling water inlet pipe, is provided with the hole of passing for water inlet pipe on described surrounding edge.
6. the quick counteract appearance that is used for the COD test according to claim 1 is characterized in that: described condensation reflux unit is fixing on the top of the shelf.
7. the quick counteract appearance that is used for the COD test according to claim 1 is characterized in that: the curved pot of described bottoming hole is planar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200309943U CN202033244U (en) | 2011-01-27 | 2011-01-27 | Rapid digestion instrument for COD (chemical oxygen demand) testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200309943U CN202033244U (en) | 2011-01-27 | 2011-01-27 | Rapid digestion instrument for COD (chemical oxygen demand) testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033244U true CN202033244U (en) | 2011-11-09 |
Family
ID=44895538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200309943U Expired - Fee Related CN202033244U (en) | 2011-01-27 | 2011-01-27 | Rapid digestion instrument for COD (chemical oxygen demand) testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202033244U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495013A (en) * | 2011-12-07 | 2012-06-13 | 江西怡杉环保有限公司 | Online digestion and luminosity detection device for water quality |
| CN102944463A (en) * | 2012-11-22 | 2013-02-27 | 赵爱国 | Chemical oxygen demand (COD) digestion instrument and working method thereof |
| CN104297044A (en) * | 2014-11-07 | 2015-01-21 | 中山出入境检验检疫局 | Acid gas processing device for graphite digestion system |
| CN105445085A (en) * | 2014-06-12 | 2016-03-30 | 北京普析通用仪器有限责任公司 | Heating insulation apparatus and heating insulation method for determination of COD value by dichromate method |
| CN112023996A (en) * | 2020-09-27 | 2020-12-04 | 北京东方安杰科技有限公司 | Multi-station independent heating and sample transferring device for digestion reflux equipment |
-
2011
- 2011-01-27 CN CN2011200309943U patent/CN202033244U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495013A (en) * | 2011-12-07 | 2012-06-13 | 江西怡杉环保有限公司 | Online digestion and luminosity detection device for water quality |
| CN102495013B (en) * | 2011-12-07 | 2016-04-27 | 江西怡杉环保股份有限公司 | A kind of water quality in-line digestion and photometric detection device |
| CN102944463A (en) * | 2012-11-22 | 2013-02-27 | 赵爱国 | Chemical oxygen demand (COD) digestion instrument and working method thereof |
| CN105445085A (en) * | 2014-06-12 | 2016-03-30 | 北京普析通用仪器有限责任公司 | Heating insulation apparatus and heating insulation method for determination of COD value by dichromate method |
| CN105445085B (en) * | 2014-06-12 | 2019-05-31 | 北京普析通用仪器有限责任公司 | A kind of heating and heat-insulating device and method for dichromate titration measurement COD value |
| CN104297044A (en) * | 2014-11-07 | 2015-01-21 | 中山出入境检验检疫局 | Acid gas processing device for graphite digestion system |
| CN112023996A (en) * | 2020-09-27 | 2020-12-04 | 北京东方安杰科技有限公司 | Multi-station independent heating and sample transferring device for digestion reflux equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20150127 |
|
| EXPY | Termination of patent right or utility model |