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CN212881111U - COD digestion device - Google Patents

COD digestion device Download PDF

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Publication number
CN212881111U
CN212881111U CN202020466018.1U CN202020466018U CN212881111U CN 212881111 U CN212881111 U CN 212881111U CN 202020466018 U CN202020466018 U CN 202020466018U CN 212881111 U CN212881111 U CN 212881111U
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CN
China
Prior art keywords
cooling
pipe
air
conveying
water
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Expired - Fee Related
Application number
CN202020466018.1U
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Chinese (zh)
Inventor
左静芬
李锦美
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Foshan Tianyuan Environmental Testing Service Co ltd
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Foshan Tianyuan Environmental Testing Service Co ltd
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Priority to CN202020466018.1U priority Critical patent/CN212881111U/en
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Publication of CN212881111U publication Critical patent/CN212881111U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a COD digestion device, which comprises a heating base, a digestion pipe, a cooling bracket and a cooling reflux device, the cooling reflux device is arranged on a heating base through a cooling bracket, the heating base is provided with a heating storage hole, the digestion pipe is arranged on the heating storage hole, the digestion pipe is connected with a cooling reflux device through a cooling pipe, the cooling reflux device comprises a water-cooling interlayer and an air-cooling interlayer, the water-cooling interlayer is sequentially provided with an input pipe, a cooling storage layer and an output pipe along the horizontal direction, the conveying pipe, the cooling storage layer and the output pipe are communicated, the cooling storage layer can store cooling water to enable the cooling water to be in full contact with the cooling pipe for cooling, the air cooling interlayer is sequentially provided with an air supply channel, an air outlet channel and a conveying air channel along the horizontal direction, and the air supply channel, the air outlet channel and the conveying air channel are communicated and convey the cooling air to cool the cooling pipe; the COD digestion device can ensure the detection accuracy of digestion night.

Description

COD digestion device
The technical field is as follows:
the utility model relates to an inspection equipment technical field especially relates to a COD digestion device.
Background art:
chemical Oxygen Demand (COD) is one of the main control indexes of surface water and waste water, and is an important comprehensive index of organic pollution of water, and a COD digestion device is a special digestion device for measuring COD. COD digestion device is digesting the in-process, and digestion liquid can high temperature evaporation, and in order to guarantee the accuracy of testing result, COD digestion device is provided with the condenser pipe on digesting a tub upper portion to make the gaseous condensate reflux of evaporation to digesting in the pipe through the condenser pipe cooling, but the cooling nature of the condenser pipe of current COD digestion device is not high, and the cooling effect is relatively poor, can only make partial steam condensate reflux, has influenced the accuracy that the sample detected.
The utility model has the following contents:
in order to solve the technical problem, the utility model provides a COD digestion device cools off the cooling tube through two kinds of cooling methods of water-cooling and forced air cooling, improves the condensation reflux effect of steam in the cooling tube, avoids clearing up night excessive evaporation and scatters and disappears to guarantee to clear up night detection accuracy.
A COD digestion device comprises a heating base, a digestion pipe, a cooling bracket and a cooling reflux device, the cooling reflux device is arranged on a heating base through a cooling bracket, the heating base is provided with a heating storage hole, the digestion pipe is arranged on the heating storage hole, the digestion pipe is connected with a cooling reflux device through a cooling pipe, the cooling reflux device comprises a water-cooling interlayer and an air-cooling interlayer, the water-cooling interlayer is sequentially provided with an input pipe, a cooling storage layer and an output pipe along the horizontal direction, the input pipe, the cooling storage layer and the output pipe are communicated, and the cooling storage layer can store cooling water to ensure that the cooling water is fully contacted with the cooling pipe for cooling, the air cooling interlayer is sequentially provided with an air supply channel, an air outlet channel and a conveying air channel along the horizontal direction, and the air supply channel, the air outlet channel and the conveying air channel are communicated and convey the cooling air to cool the cooling pipe.
Preferably, the cooling pipe comprises a return pipe and a burr condensation pipe, the bottom end of the return pipe is connected with the digestion pipe, the top end of the return pipe is connected with the burr condensation pipe, and the burr condensation pipe is arranged in the cooling storage layer and the conveying air duct.
Preferably, the cooling storage layer comprises three interlayers, each interlayer is of a stepped structure with gradually descending height from top to bottom, and a conveying port is formed between every two adjacent interlayers and is communicated with the adjacent interlayers through the conveying ports.
Preferably, the inlet of the input pipe is connected with the water pipe and used for conveying cooling water, and the outlet of the input pipe is connected with the interlayer.
Preferably, the inlet of the output pipe is connected with the interlayer and used for conveying cooling water, and the outlet of the output pipe is connected with the water pipe.
Preferably, the conveying air duct comprises three air supply ducts, each air supply duct is of a funnel structure arranged in opposite directions, and a vent is formed between every two adjacent air supply ducts and communicated with each other through the vent.
Preferably, the inlet of the air supply channel is connected with the air pipe and used for conveying cooling air, and the outlet of the air supply channel is connected with the air supply channel.
Preferably, the inlet of the air outlet channel is connected with the air supply duct and used for conveying cooling air, and the outlet of the air outlet channel is connected with the air pipe.
The utility model has the advantages that: this COD digestion device can be earlier to the high temperature steam cooling of burr condenser pipe lower part through the wind-cooled interlayer's wind channel of carrying, the cooling storage layer of water-cooling interlayer can carry out cooling down once more to the steam after the cooling simultaneously, make steam cooling condense into the liquid drop backward flow to digestion in the pipe, and the interlayer of cooling storage layer can save the cooling water, increase the area of contact of burr condenser pipe and cooling water, and make burr condenser pipe and cooling water keep in contact with and exchange the heat, accelerate the condensation speed of steam in the burr condenser pipe, consequently, can improve the condensation backward flow effect of steam, avoid digesting night excessive evaporation and scatter and disappear, and guarantee to digest night detection accuracy.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 heating base, 2 clear up the pipe, 3 cooling tube, 31 back flow, 32 burr condenser pipe, 4 cooling support, 5 cooling refluxes, 51 water-cooling interlayer, 52 air-cooling interlayer, 53 input tube, 54 cooling storage layer, 541 interlayer, 55 output tube, 56 air supply channel, 57 air outlet channel, 58 air delivery duct, 581 air supply duct.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the present invention.
As shown in fig. 1, a COD digestion apparatus comprises a heating base 1, a digestion tube 2, a cooling tube 3, a cooling support 4 and a cooling reflux device 5, it should be noted that, in the specific embodiment, the digestion tube 2 and the cooling tube 3 are illustrated by taking three as examples, the cooling reflux device 5 is installed on the heating base 1 through the cooling support 4, a heating storage hole (not shown in the figure) is arranged on the heating base 1, the digestion tube 2 is installed on the heating storage hole, and the digestion tube 2 is connected with the cooling reflux device 5 through the cooling tube 3, the cooling reflux device 5 comprises a water cooling interlayer 51 and an air cooling interlayer 52, the water cooling interlayer 51 is provided with an input tube 53, a cooling storage layer 54 and an output tube 55 in sequence along the horizontal direction, the input tube, the cooling storage layer 54 and the output tube 55 are communicated, and the cooling storage layer 54 can store cooling water to make the cooling water and the cooling tube 3 fully contact and cool down, air-cooled interlayer 52 has set gradually air supply channel 56, air-out passageway 57 and transport wind channel 58 along the horizontal direction, and air supply channel 56, air-out passageway 57 and transport wind channel 58 three communicate and carry the cooling air to the cooling tube 3 cooling, and is different with traditional COD digestion device, and this COD digestion device has two kinds of cooling methods of forced air cooling and water-cooling, makes steam cool down the cooling condensation in succession and become the liquid drop backward flow to digestion tube 2 in, avoids digesting night excessive evaporation and loss to guarantee to digest night's detection accuracy.
The following structure to cooling tube 3, cooling storage layer 54 and transport wind channel 58 explains in detail, on the concrete structure of cooling tube 3, cooling tube 3 includes back flow 31 and burr condenser pipe 32, back flow 31 and burr condenser pipe 32 all correspond with cooling tube 3 quantity and are three, back flow 31 bottom is connected with dissolving pipe 2, back flow 31 top is connected with burr condenser pipe 32, and burr condenser pipe 32 sets up in cooling storage layer 54 and transport wind channel 58, both cool off burr condenser pipe 32 simultaneously in cooling storage layer 54 and transport wind channel 58, as shown in fig. 1, burr condenser pipe 32 has increased the cooling area of steam compared with ordinary spherical condenser pipe, the inside relative "cold bubble" structure can effectively block steam and pass through, improve the condensation effect of dissolving steam.
In the concrete structure of the air conveying duct 58, the air conveying duct 58 includes three air supply ducts 581, as shown in fig. 1, each air supply duct 581 is a funnel structure with two opposite openings, the funnels are arranged opposite to each other with a larger opening, a vent 582 is formed between two adjacent air supply ducts 581 and is communicated with each other through the vent 582, specifically, an inlet of the air supply duct 56 is connected with an air duct (not shown in the figure) and supplies cooling air, an outlet of the air supply duct is connected with the air supply duct 581, an inlet of the air outlet duct 57 is connected with the air supply duct 581 and supplies cooling air, an outlet of the air outlet duct 57 is connected with an air pipe, the air pipe connected with the air supply duct 56 can be connected with a blower (not shown in the figure), the air pipe connected with the air outlet duct 57 can be connected with the atmosphere to facilitate inputting and outputting of cooling air, the cooling air enters the air supply duct 581 of the air conveying duct 58 along, the air supply duct 581 can increase the contact area between the cooling air and the burr condensation pipe 32, accelerate the heat exchange speed between the cooling air and the steam, and reduce the temperature of the high-temperature steam in the burr condensation pipe 32.
In the specific structure of the cooling storage layer 54, the cooling storage layer 54 includes three partition layers 541, as shown in fig. 1, each partition layer 541 is a stepped structure with a height gradually decreasing from top to bottom, a delivery port 542 is formed between two adjacent partition layers 541 and is communicated with each other through the delivery port 542, specifically, an inlet of the input pipe 53 is connected with a water pipe (not shown in the figure) and delivers cooling water, an outlet of the input pipe 53 is connected with the partition layer 541, an inlet of the output pipe 55 is connected with the partition layer 541 and delivers cooling water, an outlet of the output pipe 55 is connected with a water pipe, the water pipe connected with the input pipe 53 can be connected with a water tank to supply cooling water or manually introduce cooling water, the water pipe connected with the output pipe 55 can be connected with a water storage tank and collects used cooling water through the water storage tank, so as to be conveniently reused, the cooling water enters the partition layers 541 of the cooling storage layer 54 along the, the cooling water gradually fills the whole interlayer 541 from the bottom of the first interlayer 541, and enters the next interlayer 541 through the conveying opening 542 to be conveyed continuously until each interlayer 541 stores the cooling water, so that the burr condensation pipe 32 is immersed in the cooling water, the contact area between the burr condensation pipe 32 and the cooling water is increased, the burr condensation pipe 32 is kept in contact with the cooling water to continuously exchange heat, the condensation speed of the steam in the burr condensation pipe 32 is increased, and the steam cooled by the air supply duct 581 enters the burr condensation pipe 32 of the cooling storage layer 54 to be condensed and reflows.
The COD digestion device is implemented by adding digestion solution, a heating bottom plate heats a digestion tube 2 through a heating storage hole, the digestion solution in the digestion tube 2 is heated and evaporated, digestion night steam enters a burr condensation tube 32 through a return pipe 31, firstly, the steam can pass through the burr condensation tube 32 of an air cooling interlayer 52 part, cooling air enters an air supply duct 581 of a conveying air duct 58 along an air pipe and an air supply channel 56, the air supply duct 581 can increase the contact area of the cooling air and the burr condensation tube 32 and accelerate the heat exchange speed of the cooling air and the steam, high-temperature steam in the burr condensation tube 32 is cooled, the cooled steam enters the burr condensation tube 32 of a cooling storage layer 54 part, cooling water enters an interlayer 541 of the cooling storage layer 54 along a water pipe and an input pipe 53 and enables each interlayer 541 to store cooling water, and thus the burr condensation tube 32 is soaked in the cooling water, increase the area of contact of burr condenser pipe 32 and cooling water to make burr condenser pipe 32 keep contacting with the cooling water and continue the exchange heat, with this make the rapid cooling condensation of steam in the burr condenser pipe 32 become and clear up the liquid drop, clear up the liquid drop and flow in again along burr condenser pipe 32 and back flow 31 and clear up in managing 2, improved the condensate reflux effect of clearing up night steam, avoid clearing up night excessive evaporation and scattering and disappearing, and guarantee to clear up night detection accuracy.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims (8)

1. A COD digestion device is characterized in that: comprises a heating base, a digestion pipe, a cooling bracket and a cooling reflux device, wherein the cooling reflux device is arranged on the heating base through the cooling bracket, the heating base is provided with a heating storage hole, the digestion pipe is arranged on the heating storage hole, the digestion pipe is connected with a cooling reflux device through a cooling pipe, the cooling reflux device comprises a water-cooling interlayer and an air-cooling interlayer, the water-cooling interlayer is sequentially provided with an input pipe, a cooling storage layer and an output pipe along the horizontal direction, the input pipe, the cooling storage layer and the output pipe are communicated, and the cooling storage layer can store cooling water to ensure that the cooling water is fully contacted with the cooling pipe for cooling, the air cooling interlayer is sequentially provided with an air supply channel, an air outlet channel and a conveying air channel along the horizontal direction, and the air supply channel, the air outlet channel and the conveying air channel are communicated and convey the cooling air to cool the cooling pipe.
2. The COD digesting apparatus according to claim 1, wherein: the cooling pipe comprises a return pipe and a burr condensation pipe, the bottom end of the return pipe is connected with the digestion pipe, the top end of the return pipe is connected with the burr condensation pipe, and the burr condensation pipe is arranged in the cooling storage layer and the conveying air duct.
3. The COD digesting apparatus according to claim 1, wherein: the cooling storage layer comprises three interlayers, each interlayer is of a stepped structure with gradually descending height from top to bottom, a conveying port is formed between every two adjacent interlayers, and the interlayers are communicated through the conveying ports.
4. The COD digesting apparatus according to claim 3, wherein: the inlet of the input pipe is connected with the water pipe and used for conveying cooling water, and the outlet of the input pipe is connected with the interlayer.
5. The COD digesting apparatus according to claim 3, wherein: the inlet of the output pipe is connected with the interlayer and used for conveying cooling water, and the outlet of the output pipe is connected with the water pipe.
6. The COD digesting apparatus according to claim 1, wherein: the conveying air duct comprises three air supply ducts, each air supply duct is of a funnel structure which is arranged in opposite directions, and a vent is formed between every two adjacent air supply ducts and communicated with each other through the vent.
7. The COD digesting apparatus according to claim 6, wherein: the inlet of the air supply channel is connected with the air pipe and used for conveying cooling air, and the outlet of the air supply pipeline is connected with the air supply channel.
8. The COD digesting apparatus according to claim 6, wherein: the inlet of the air outlet channel is connected with the air supply duct and used for conveying cooling air, and the outlet of the air outlet channel is connected with the air pipe.
CN202020466018.1U 2020-04-02 2020-04-02 COD digestion device Expired - Fee Related CN212881111U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020466018.1U CN212881111U (en) 2020-04-02 2020-04-02 COD digestion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020466018.1U CN212881111U (en) 2020-04-02 2020-04-02 COD digestion device

Publications (1)

Publication Number Publication Date
CN212881111U true CN212881111U (en) 2021-04-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020466018.1U Expired - Fee Related CN212881111U (en) 2020-04-02 2020-04-02 COD digestion device

Country Status (1)

Country Link
CN (1) CN212881111U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114279809A (en) * 2021-12-20 2022-04-05 广东贝源检测技术股份有限公司 Digestion device for detecting COD in high-chlorine wastewater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114279809A (en) * 2021-12-20 2022-04-05 广东贝源检测技术股份有限公司 Digestion device for detecting COD in high-chlorine wastewater
CN114279809B (en) * 2021-12-20 2024-02-06 广东贝源检测技术股份有限公司 Digestion device for detecting COD in high-chlorine wastewater

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Granted publication date: 20210406