Efficient multi-channel accelerated cooling COD digester

By designing a multi-channel accelerated cooling COD digester, which employs a cold air unit and condenser, multiple samples can be digested and cooled simultaneously. This solves the problems of sample quantity limitation and slow cooling speed of traditional COD digesters, thereby improving detection efficiency and equipment utilization.

CN224933734UActive Publication Date: 2026-11-03SUZHOU HIGH TECH TESTING CO LTD
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Patent Information

Application Number
CN202522332779.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-04
Publication Date
2026-11-03
Estimated Expiration
2035-11-04

AI Technical Summary

Technical Problem

Traditional COD digesters have a limited number of samples that can be digested at one time, which cannot meet the requirements of large-scale testing. They also occupy a lot of laboratory space, consume a lot of energy, are complicated to operate, and have a slow cooling rate, which reduces their efficiency.

Method used

Design a high-efficiency multi-channel accelerated cooling COD digester, which adopts a cold air unit and condenser, and is equipped with multiple pore positions and a separation mechanism to achieve simultaneous digestion of multiple samples. The cooling system shortens the sample cooling time and avoids collisions between digestion bottles.

Benefits of technology

It improved experimental efficiency, reduced laboratory space, lowered energy consumption, shortened experimental time, and ensured the stability and safety of the digestion process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of efficient multi-channel accelerated cooling COD digestion instrument, belong to COD digestion instrument technical field, comprising: digester, the inside of the digester is provided with air cooler and air cooler unit, the air cooler is located in the upper end of digester, the air cooler unit is located in the lower end of digester, the lateral wall of digester is provided with digestion groove, the bottom surface inner wall of digestion groove is provided with slot, the both sides of digester are provided with sliding groove, the inner wall of slot is provided with the partition mechanism for being cut off;Through the cooperation between above each device, in the utility model, by setting multiple holes, COD digestion instrument can simultaneously carry out digestion to multiple samples in single time, reach the maximum limit to improve experimental efficiency, greatly reduce the time cost of laboratory for COD, thus for detection industry, effectively increase detection profit, simultaneously without using multiple COD digestion instruments, can effectively reduce the floor area of laboratory, help the planning of experiment.
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Description

Technical Field

[0001] This utility model belongs to the technical field of COD digestion instruments, and in particular relates to a high-efficiency multi-channel accelerated cooling COD digestion instrument. Background Technology

[0002] COD is the abbreviation for Chemical Oxygen Demand, which is an important indicator reflecting the relative content of organic matter. The higher the COD, the higher the organic matter content and the more serious the pollution. Currently, COD digesters adopt digital setting and display of heating temperature, automatic control of heating temperature, and can set heating time. They are widely used in water quality testing in environmental protection, food, medical and other industries and are essential equipment in laboratories.

[0003] A search revealed Chinese Patent Publication No. CN215866069U, which discloses a COD digester. This COD digester comprises an air-cooled chamber, a reflux tube, a conical flask, a heating device, and a base. The upper surface of the heating device has multiple mounting ports and a heating seat. The heating seat connects to the mounting ports via a three-prong plug inserted into a three-prong socket. The heating seat is easily detachable, facilitating installation. A protrusion in the mounting port effectively prevents leakage risks due to liquid spillage. The fit between the protrusion and the groove further secures the heating seat. The sample vials are placed inside the heating seat, enhancing safety. A control board is located on the front of the heating device, electrically connected to the three-prong socket. Multiple rotary temperature control switches are also located on the front of the control board, electrically connected to the heating device. These switches allow independent control of the heating seat and enable setting different temperatures for different numbers of sample vials, effectively saving energy and improving applicability.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: Traditional COD digesters have a limited number of samples that can be digested at one time, which cannot meet the requirements for large-scale testing. Testing companies need to purchase multiple devices, which takes up a lot of laboratory space. When there are many samples, the experimenters will have to digest them multiple times, which takes a long time. Furthermore, the simultaneous operation of multiple devices leads to high energy consumption and complicated operation. At the same time, the slow cooling rate of traditional COD digesters also increases the total experimental time and reduces the efficiency of COD digesters.

[0005] Therefore, this invention provides a high-efficiency multi-channel accelerated cooling COD digester to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a high-efficiency multi-channel accelerated cooling COD digester, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A high-efficiency multi-channel accelerated cooling COD digester includes: a digester, wherein a cooler and a cooler unit are provided inside the digester, the cooler is located at the upper end of the digester, the cooler unit is located at the lower end of the digester, a digestion groove is provided on the side wall of the digester, a slot is provided on the inner wall of the bottom surface of the digestion groove, and sliding grooves are provided on both side walls of the digester, the sliding grooves and the slots are interconnected, and a partition mechanism for separation is provided on the inner wall of the slot;

[0011] The separating mechanism includes a fixed frame, on the inner surface of which several separating plates are fixedly installed in an alternating manner, and on the outer surface of which the inner wall of the slot is slidably connected.

[0012] As a further description of the above technical solution:

[0013] Fixed cylinders are fixedly installed on both sides of the fixed frame. One end of the fixed cylinder extends to the outside of the digester through a sliding groove. A connecting spring is fixedly installed on the inner wall of the fixed cylinder.

[0014] As a further description of the above technical solution:

[0015] A movable rod is fixedly installed at one end of the connecting spring. One end of the movable rod extends to the outside of the fixed cylinder. A mounting plate is fixedly installed at one end of the movable rod. A positioning pin is fixedly installed on the side wall of the mounting plate.

[0016] As a further description of the above technical solution:

[0017] The separating mechanism also includes positioning holes, which are equidistantly arranged on the side wall of the digester and distributed on both sides of the slide groove. The positioning holes are adapted to the positioning pins.

[0018] As a further description of the above technical solution:

[0019] The digester has through holes equidistantly arranged on its upper surface, and heating seats are fixedly installed equidistantly on the inner wall of the bottom surface of the digestion tank of the digester. The holes and heating seats correspond to each other, and the heating seats are distributed in the chambers separated by partition plates.

[0020] As a further description of the above technical solution:

[0021] A condenser is placed inside the circular hole, and a digestion bottle is placed on the upper surface of the heating base. One end of the condenser corresponds to the mouth of the digestion bottle.

[0022] As a further description of the above technical solution:

[0023] A control panel is fixedly installed on the outer surface of the digester, and the control panel is equipped with a heating time control button for controlling the heating time.

[0024] (III) Beneficial Effects

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0026] 1. In this utility model, by setting multiple positions, the COD digester can digest multiple samples at the same time, thereby maximizing experimental efficiency and greatly reducing the time cost of COD in the laboratory. Therefore, it effectively increases the testing profit for the testing industry. At the same time, it eliminates the need for multiple COD digesters, which can effectively reduce the laboratory floor space and facilitate experimental planning.

[0027] 2. In this utility model, by setting up a cold air unit and a cold air blower, it is convenient to remove and place the sample, effectively shortening the sample cooling time, thereby shortening the experimental time of the COD digester and improving the efficiency of the COD digester.

[0028] 3. In this utility model, by setting up a partition mechanism, the heating seat is made into an independent chamber by using a partition plate, thereby realizing the isolation of the digestion bottle. This effectively avoids the situation where the digestion bottle shakes and collides with other digestion bottles when the COD digester is working, thus achieving protection of the digestion bottle and ensuring the stability of the COD digester during the digestion process. At the same time, the partition plate can be raised and lowered, which facilitates the cleaning of the COD digester when it is not in use. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a high-efficiency multi-channel accelerated cooling COD digester.

[0030] Figure 2 This is a partial three-dimensional structural diagram of a high-efficiency multi-channel accelerated cooling COD digester.

[0031] Figure 3 This is a schematic diagram of the exploded structure of the separating mechanism in a high-efficiency multi-channel accelerated cooling COD digester.

[0032] Figure 4 For a high-efficiency multi-channel accelerated cooling COD digester Figure 2 A magnified structural diagram of point A in the middle.

[0033] Legend:

[0034] 1. Digester; 2. Air cooler; 3. Air cooler unit; 4. Condenser; 5. Digestion bottle; 6. Separation mechanism; 601. Fixing frame; 602. Separating plate; 603. Fixing cylinder; 604. Connecting spring; 605. Movable rod; 606. Mounting plate; 607. Positioning pin; 608. Positioning hole; 7. Round hole; 8. Heating base; 9. Slide groove. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] In specific implementation, such as Figures 1-4 As shown, this utility model provides a technical solution: a high-efficiency multi-channel accelerated cooling COD digester, including a digester 1. The digester 1 is internally equipped with a cooler 2 and a cooler unit 3. The cooler 2 is located at the upper end of the digester 1, and the cooler unit 3 is located at the lower end of the digester 1. A digestion groove is provided on the side wall of the digester 1, and a slot is provided on the inner wall of the bottom surface of the digestion groove. Slide grooves 9 are provided on both side walls of the digester 1, and the slide grooves 9 are interconnected with the slots. A partition mechanism 6 for separation is provided on the inner wall of the slot. The partition mechanism 6 includes a fixing frame 601, and a plurality of partition plates 602 are alternately fixedly installed on the inner surface of the fixing frame 601. The outer surface of the fixing frame 601 is slidably connected to the inner wall of the slot.

[0037] Fixing cylinders 603 are fixedly installed on both sides of the fixing frame 601. One end of the fixing cylinder 603 extends to the outside of the digester 1 through the sliding groove 9. A connecting spring 604 is fixedly installed on the inner wall of the fixing cylinder 603.

[0038] A movable rod 605 is fixedly installed at one end of the connecting spring 604. One end of the movable rod 605 extends to the outside of the fixed cylinder 603. A mounting plate 606 is fixedly installed at one end of the movable rod 605. A positioning pin 607 is fixedly installed on the side wall of the mounting plate 606.

[0039] The separating mechanism 6 also includes positioning holes 608, which are equidistantly arranged on the side wall of the digester 1. The positioning holes 608 are distributed on both sides of the slide groove 9, and the positioning holes 608 are compatible with the positioning pins 607.

[0040] Specifically, through the cooperation of the above structures, after the digestion bottle 5 is placed on the heating base 8, the mounting plate 606 is pulled to both sides of the digester 1. At this time, the mounting plate 606 will drive the positioning pin 607 to move out of the positioning hole 608. Then, the mounting plate 606 will drive the fixed cylinder 603 to move upward to the slide groove 9 via the movable rod 605. At this time, the fixed cylinder 603 will drive the fixed frame 601 to move upward to the slot. The fixed frame 601 will drive the partition plate 602 to move upward simultaneously. Under the action of the partition plate 602, each digestion bottle 5 is separated to avoid too many digestion bottles 5 from interacting. In the event of a collision, once the partition plate 602 has moved to the appropriate position, the connecting spring 604 will pull the movable rod 605 into the fixed cylinder 603. At this time, the movable rod 605 will drive the positioning pin 607 to insert into the positioning hole 608 through the mounting plate 606, thereby fixing the partition plate 602 by fixing the fixed frame 601, thus separating the digestion bottle 5. The same method can be used to retract the partition plate 602 and the fixed frame 601 into the slot. At this time, the fixed frame 601 and the partition plate 602 are flush with the bottom surface of the digestion tank, which is convenient for wiping and cleaning the bottom surface of the digestion tank.

[0041] The upper surface of the digester 1 is provided with through round holes 7 at equal intervals. The bottom inner wall of the digestion tank of the digester 1 is fixedly installed with heating seats 8 at equal intervals. The round holes 7 and the heating seats 8 correspond to each other. The heating seats 8 are distributed in the chambers separated by the partition plate 602.

[0042] A condenser 4 is placed inside the round hole 7, and a digestion bottle 5 is placed on the upper surface of the heating base 8. One end of the condenser 4 corresponds to the mouth of the digestion bottle 5.

[0043] A control panel is fixedly installed on the outer surface of the digester 1. The control panel has a heating time control button for controlling the heating time.

[0044] Specifically, through the cooperation of the above structures, the digestion bottle 5 containing the sample is placed on the heating base 8, the condenser 4 penetrates the inside of the round hole 7, and one end of the condenser 4 is inserted into the mouth of the digestion bottle 5. Then, the cold water pipe is connected to the condenser 4. When the heating base 8 heats the digestion bottle 5, the sample vapor enters the condenser 4 and is condensed under the action of the condenser 4.

[0045] It should be noted that the selection of the air cooler unit 3 and the control unit in the above description are selected as needed. This part is well-known technology in the field and will not be elaborated here.

[0046] It should be noted that the selection of control panel and control unit in the above description is based on the needs. This part is well-known technology in the field and will not be elaborated here.

[0047] Working principle: Place the digester 1 on a horizontal surface and preheat it. After a period of time, the heating system inside the digester 1 will reach a stable state. Then, place the digestion bottle 5 containing the sample on the heating base 8, ensuring that the bottom surface of the digestion bottle 5 is in close contact with the upper surface of the heating base 8. Move the separating mechanism 6 upward from the slot to isolate the digestion bottles 5 and prevent them from colliding. Then, set the heating temperature and heating time through the control panel. Connect the condenser 4 to the cold water pipe. After the preparation is complete, start the digester 1. The digester 1 will automatically heat up to the set temperature. During the digestion process, observe the condensate in the condenser 4 to avoid violent boiling.

[0048] After the sample digestion is completed, the digester 1 will automatically stop deheating and will be cooled by the action of the air cooler 2 and the air cooler unit 3. After the sample is cooled, it will be taken out and the condenser 4 will be rinsed with distilled water.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency multi-channel accelerated cooling COD digester, characterized in that: include: The digester (1) is equipped with a cooler (2) and a cooler unit (3) inside. The cooler (2) is located at the upper end of the digester (1), and the cooler unit (3) is located at the lower end of the digester (1). A digestion tank is provided on the side wall of the digester (1), and a slot is provided on the inner wall of the bottom surface of the digestion tank. A sliding groove (9) is provided on both sides of the digester (1), and the sliding groove (9) is connected to the slot. A partition mechanism (6) for separation is provided on the inner wall of the slot. The separating mechanism (6) includes a fixed frame (601), on which a plurality of separating plates (602) are fixedly installed in an alternating manner on the inner surface of the fixed frame (601), and the outer surface of the fixed frame (601) has a slot for sliding connection to the inner wall.

2. The high-efficiency multi-channel accelerated cooling COD digester according to claim 1, characterized in that, Fixing cylinders (603) are fixedly installed on both sides of the fixing frame (601). One end of the fixing cylinder (603) extends to the outside of the digester (1) through the sliding groove (9). A connecting spring (604) is fixedly installed on the inner wall of the fixing cylinder (603).

3. The high-efficiency multi-channel accelerated cooling COD digester according to claim 2, characterized in that, One end of the connecting spring (604) is fixedly mounted with a movable rod (605), one end of the movable rod (605) extends to the outside of the fixed cylinder (603), one end of the movable rod (605) is fixedly mounted with an mounting plate (606), and a positioning pin (607) is fixedly mounted on the side wall of the mounting plate (606).

4. The high-efficiency multi-channel accelerated cooling COD digester according to claim 1, characterized in that, The separating mechanism (6) also includes positioning holes (608), which are equidistantly arranged on the side wall of the digester (1). The positioning holes (608) are distributed on both sides of the slide (9), and the positioning holes (608) are adapted to the positioning pins (607).

5. The high-efficiency multi-channel accelerated cooling COD digester according to claim 1, characterized in that, The digester (1) has through holes (7) equidistantly arranged on its upper surface. Heating seats (8) are fixedly installed equidistantly on the inner wall of the bottom surface of the digestion tank of the digester (1). The holes (7) and heating seats (8) correspond to each other. The heating seats (8) are distributed in the chambers separated by the partition plate (602).

6. The high-efficiency multi-channel accelerated cooling COD digester according to claim 5, characterized in that, A condenser (4) is placed inside the circular hole (7), and a digestion bottle (5) is placed on the upper surface of the heating base (8). One end of the condenser (4) corresponds to the mouth of the digestion bottle (5).

7. The high-efficiency multi-channel accelerated cooling COD digester according to claim 1, characterized in that, The digester (1) has a control panel fixedly installed on its outer surface. The control panel is equipped with a heating time control button for controlling the heating time.