Digestion device for environment-friendly detection of water quality

By introducing a heat recovery structure into the water quality testing device, the problem of direct heat emission during digestion is solved, heat recovery and utilization are realized, digestion efficiency and equipment stability are improved, and energy consumption is reduced.

CN223966344UActive Publication Date: 2026-03-03CHANGZHOU YISULI TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing water quality testing digestion devices directly release the hot gas generated during the heating and digestion process, resulting in energy waste and environmental thermal pollution, and affecting the stability of the testing equipment and the comfort of the operators.

Method used

A digestion device incorporating a heat recovery structure was designed. The hot gas generated during the digestion process is introduced into the heat recovery water tank through a vent pipe. The recovered heat is used to preheat subsequent samples, and the samples are preheated through a preheating rack.

Benefits of technology

It achieves heat recovery and utilization, reduces energy waste, improves digestion efficiency, shortens digestion time, reduces overall energy consumption, and improves the stability and comfort of detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water quality detection, and discloses a digestion device for environment-friendly water quality detection, which comprises a digestion box and a heating plate mounted at the bottom of the inner wall of the digestion box, and further comprises a partition plate fixed in the middle of the inner wall of the digestion box, and placing plates are arranged above the heating plate and the partition plate; the digestion device has a heat recovery function, heat in hot gas generated in the digestion process is recovered through a heat recovery structure and is used for preheating a water quality sample needing to be digested subsequently, energy waste is effectively reduced, the energy utilization efficiency is improved, and due to the fact that the recovered heat is utilized in the preheating process, the energy utilization efficiency is improved. Therefore, the requirement on new heat energy is reduced, the overall energy consumption is reduced, and the preheated water quality sample is close to the required digestion temperature when entering the digestion stage, so that the water quality sample can enter a stable digestion state more quickly, the time of the whole digestion process is shortened, and the digestion efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically a digestion device for environmental water quality testing. Background Technology

[0002] The purposes of water quality testing include examining environmental quality, investigating whether the water quality is suitable or usable, examining the pollution level or degree of pollution of water, and checking the efficiency of water treatment processes. In order to improve the accuracy of water quality test results, it is necessary to digest the water sample first. The purpose of digestion is to use acidic liquid at a certain temperature to destroy the organic matter and reducing substances in the water sample to be tested, making it a measurable component.

[0003] A search revealed a water quality testing digestion device, application number CN202320147176.4. During the heating and digestion of water samples, a large amount of heat generated during the digestion process is directly released into the environment without an effective heat recovery mechanism. This not only wastes energy but may also cause thermal pollution to the environment. Especially in closed or poorly ventilated testing environments, it may lead to an increase in indoor temperature, affecting the stability of the testing equipment and the comfort of the operators. Utility Model Content

[0004] The purpose of this invention is to provide a digestion device for water quality environmental testing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a digestion device for water quality environmental testing, comprising a digestion tank and a heating plate installed at the bottom of the inner wall of the digestion tank, and further comprising:

[0006] A partition plate is fixed in the middle of the inner wall of the digestion box. A placement plate is provided above the heating plate and the partition plate. Multiple placement cylinders are provided through the surface of the placement plate. A heat recovery water tank is fixed above the left side of the digestion box. A vent pipe is connected to the bottom of the heat recovery water tank. An exhaust valve is connected to the top of the heat recovery water tank. A preheating structure is provided above the digestion box. An electric push rod is fixed on the right side of the top of the digestion box. The output shaft of the electric push rod passes through the interior of the digestion box and is fixed with a connecting plate.

[0007] A cleaning scraper is slidably connected to the rear side of the bottom of the partition plate, and an adjustment structure is fixed on the right side below the cleaning scraper.

[0008] Preferably, the vent pipe is L-shaped, and the end of the vent pipe away from the heat recovery water tank passes through the digestion box and extends into the interior of the digestion box. A one-way valve is fixed above the surface of the vent pipe.

[0009] Preferably, the preheating structure includes a water pump, a connecting pipe, a water pipe, and a preheating frame. The water pump is fixed on the left side of the top of the digestion tank. The connecting pipe is connected to the top of the heat recovery water tank, and the other end of the connecting pipe is connected to the water pump. The water pipe is connected to the front side of the water pump. The preheating frame is fixed on the left side of the connecting plate, and the surface of the preheating frame is provided with multiple through slots.

[0010] Preferably, the end of the water pipe away from the water pump extends into the interior of the digestion chamber and is connected to the preheating rack, and the interior of the preheating rack is hollow. The water pipe is a flexible hose, and a heat-conducting plate is fixed to the inner wall surface of the groove of the preheating rack.

[0011] Preferably, the top of the partition plate is provided with multiple positioning grooves, and the placement cylinder is slidably connected to the inner wall of the positioning grooves.

[0012] Preferably, the adjusting structure includes a threaded rod, a waterproof motor, a threaded sleeve, and a movable rod. The threaded rod is rotatably connected to the right side of the rear of the inner wall of the digestion chamber. The waterproof motor is fixed to the bottom of the inner wall of the digestion chamber, and the output shaft of the waterproof motor is fixedly connected to the front end of the threaded rod. The threaded sleeve is threadedly connected to the rear side of the surface of the threaded rod. The movable rod is fixed to the right side of the bottom of the cleaning scraper, and the bottom end of the movable rod is fixedly connected to the surface of the threaded sleeve.

[0013] Preferably, a limiting groove is formed on the lower right side of the inner wall of the digestion chamber, a limiting block is fixed on the right side of the threaded sleeve, and one side of the limiting block extends into the interior of the limiting groove and slides in connection with the inner wall of the limiting groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention features a heat recovery function. Through a heat recovery structure, the heat generated during the digestion process is recovered and used to preheat the water samples to be digested later. This design effectively reduces energy waste and improves energy efficiency. Since the preheating process utilizes the recovered heat, the demand for new heat energy is reduced, thereby lowering the overall energy consumption. When the preheated water samples enter the digestion stage, they are already close to the required digestion temperature, so they can enter a stable digestion state more quickly. This shortens the entire digestion process time and improves digestion efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional schematic diagram of the heat recovery water tank in this utility model;

[0018] Figure 3This is a three-dimensional schematic diagram of the preheating rack in this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the partition plate in this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the adjustment structure in this utility model;

[0021] Figure 6 This utility model Figure 1 A magnified view of a portion of point A in the middle.

[0022] In the diagram: 1. Digestion chamber; 2. Heating plate; 3. Divider plate; 4. Placement plate; 5. Placement cylinder; 6. Heat recovery water tank; 7. Vent pipe; 8. Check valve; 9. Exhaust valve; 10. Preheating structure; 101. Water pump; 102. Connecting pipe; 103. Water pipe; 104. Preheating rack; 11. Electric push rod; 12. Connecting plate; 13. Cleaning scraper; 14. Adjustment structure; 141. Threaded rod; 142. Waterproof motor; 143. Threaded sleeve; 144. Movable rod; 15. Limiting groove; 16. Limiting block; 17. Heat-conducting plate; 18. Positioning groove. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 As shown, a digestion device for water quality environmental testing includes a digestion box 1. A heating plate 2 is installed at the bottom of the inner wall of the digestion box 1. A partition plate 3 is fixed in the middle of the inner wall of the digestion box 1. A placement plate 4 is provided above the heating plate 2 and the partition plate 3. Multiple placement cylinders 5 are provided through the surface of the placement plate 4. The placement cylinders 5 are fixedly connected to the placement plate 4. Handles are fixed on both the left and right sides of the placement plate 4. A heat recovery water tank 6 is fixed above the left side of the digestion box 1. A vent pipe 7 is connected to the bottom of the heat recovery water tank 6. An exhaust valve 9 is connected to the top of the heat recovery water tank 6. A preheating structure 10 is provided above the digestion box 1. An electric push rod 11 is fixed on the right side of the top of the digestion box 1. The output shaft of the electric push rod 11 passes through the interior of the digestion box 1 and is fixed with a connecting plate 12. A cleaning scraper 13 is slidably connected to the rear side of the bottom of the partition plate 3. An adjustment structure 14 is fixed on the right side below the cleaning scraper 13.

[0025] The vent pipe 7 is L-shaped, with the end of the vent pipe 7 away from the heat recovery water tank 6 passing through the digestion box 1 and extending into the interior of the digestion box 1. A one-way valve 8 is fixed on the upper surface of the vent pipe 7. When the heating plate 2 heats and digests the test sample inside the placement cylinder 5, the hot air generated at the bottom of the digestion box 1 will enter the interior of the heat recovery water tank 6 through the vent pipe 7. After the hot air enters the heat recovery water tank 6 and comes into contact with the water inside the heat recovery water tank 6, the water will absorb the heat in the hot air. Then the gas will be discharged through the exhaust valve 9, and the water level inside the heat recovery water tank 6 will rise, thus recovering the heat in the gas.

[0026] The preheating structure 10 includes a water pump 101, a connecting pipe 102, a water pipe 103, and a preheating frame 104. The water pump 101 is fixed to the left side of the top of the digestion tank 1. The connecting pipe 102 is connected to the top of the heat recovery water tank 6, and the other end of the connecting pipe 102 is connected to the water pump 101. The water pipe 103 is connected to the front side of the water pump 101. The preheating frame 104 is fixed to the left side of the connecting plate 12, and multiple through slots are opened on the surface of the preheating frame 104. The end of the water pipe 103 away from the water pump 101 extends into the interior of the digestion tank 1 and is connected to the preheating frame 104. The interior of the preheating frame 104 is hollow. 03 is a retractable flexible hose. A heat-conducting plate 17 is fixed on the inner wall surface of the through groove of the preheating rack 104. When the water pump 101 is turned on, the hot water inside the heat recovery water tank 6 will enter the water pipe 103 through the connecting pipe 102, and the preheating rack 104 will be filled with hot water. When the output shaft of the electric push rod 11 pushes the connecting plate 12 down, the preheating rack 104 will be fitted onto the surface of the placement cylinder 5. After the heat-conducting plate 17 comes into contact with the surface of the placement cylinder 5, it can transfer the heat of the hot water inside the preheating rack 104 to the surface of the placement cylinder 5, thereby preheating the test sample inside the placement cylinder 5 and improving the subsequent digestion efficiency.

[0027] The top of the partition plate 3 is provided with multiple positioning grooves 18, and the placement cylinder 5 is slidably connected to the inner wall of the positioning groove 18. When the staff needs to preheat the test sample, the positioning groove 18 below can position the placement cylinder 5 to avoid the placement cylinder 5 from deviating from the position of the upper preheating rack 104, which would prevent the preheating rack 104 from being fitted onto the surface of the placement cylinder 5.

[0028] The adjustment structure 14 includes a threaded rod 141, a waterproof motor 142, a threaded sleeve 143, and a movable rod 144. The threaded rod 141 is rotatably connected to the right side of the rear of the inner wall of the digestion chamber 1. The waterproof motor 142 is fixed to the bottom of the inner wall of the digestion chamber 1, and the output shaft of the waterproof motor 142 is fixedly connected to the front end of the threaded rod 141. The threaded sleeve 143 is threadedly connected to the rear side of the surface of the threaded rod 141. The movable rod 144 is fixed to the right side of the bottom of the cleaning scraper 13, and the bottom end of the movable rod 144 is fixedly connected to the surface of the threaded sleeve 143. A limit groove 15 is provided on the lower right side of the inner wall of the digestion chamber 1. The right side of the threaded sleeve 143... A side-fixed limiting block 16 is provided, with one side of the limiting block 16 extending into the limiting groove 15 and slidingly connected to the inner wall of the limiting groove 15. After the cleaning is completed, the staff can turn on the waterproof motor 142, which will cause the output shaft of the waterproof motor 142 to drive the threaded rod 141 to rotate. Meanwhile, the right-side limiting block 16 slides inside the limiting groove 15, limiting the threaded sleeve 143. This causes the threaded sleeve 143 to move the upper movable rod 144. The cleaning scraper 13 moves at the bottom of the partition plate 3, cleaning the impurities and dirt at the bottom of the partition plate 3.

[0029] Working principle: When staff conduct water quality testing, they first pour the test sample into the placement cylinder 5 and move the placement plate 4 to position the placement cylinder 5 above the heating plate 2. At this point, staff can pour the subsequent test sample into the placement cylinder 5 above the separator plate 3. The staff then closes the digestion chamber 1 and opens the heating plate 2, allowing the heating plate 2 to heat and digest the placement cylinder 5. The hot air generated below the digestion chamber 1 enters the heat recovery water tank 6 through the vent pipe 7, heating the water inside and recovering the heat. Then, the staff opens the upper electric push rod 11, causing the connecting plate 12 to lower the preheating rack 104 on one side. Once the preheating rack 104 is fitted onto the surface of the upper placement cylinder 5, the water pump 1... 01 is turned on, which causes the water pump 101 to draw hot water from the heat recovery tank 6 into the preheating rack 104. The heat conduction plate 17 begins to heat the placement cylinder 5, causing the temperature of the test sample inside the placement cylinder 5 to rise. After the test sample below the digestion box 1 is digested, the staff removes the placement plate 4 below and turns on the waterproof motor 142 on one side, which causes the cleaning scraper 13 to clean the scale or impurities at the bottom of the partition plate 3. At this time, the staff removes the preheated placement cylinder 5 above and places it on the heating plate 2 again. Then the staff turns off the digestion box 1 and turns on the heating plate 2. Because the test sample inside the placement cylinder 5 is extracted and preheated, the test sample in the placement cylinder 5 can be quickly digested, thereby completing the digestion treatment of the water sample.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A digestion device for water quality environmental protection detection, comprising a digestion box (1) and a heating plate (2) installed on the inner wall bottom of the digestion box (1), characterized in that, Also include: The separation plate (3) is fixed in the middle of the inner wall of the digestion box (1), the heating plate (2) and the separation plate (3) are provided with a placing plate (4) above, a plurality of placing barrels (5) are provided on the surface of the placing plate (4), the upper left side of the digestion box (1) is fixed with a heat recovery water tank (6), the bottom of the heat recovery water tank (6) is communicated with an air pipe (7), the top of the heat recovery water tank (6) is communicated with an exhaust valve (9), the upper portion of the digestion box (1) is provided with a preheating structure (10), the right side of the top of the digestion box (1) is fixed with an electric push rod (11), and the output shaft of the electric push rod (11) penetrates into the inside of the digestion box (1) and is fixed with a connecting plate (12); The cleaning scraper (13) is slidably connected to the bottom rear side of the separation plate (3), and the right side below the cleaning scraper (13) is fixed with a position adjusting structure (14).

2. The digestion device for environmental protection detection of water quality according to claim 1, characterized in that: The air pipe (7) is L-shaped as a whole, and the end of the air pipe (7) away from the heat recovery water tank (6) penetrates the digestion box (1) and extends into the inside of the digestion box (1), and the surface of the air pipe (7) is fixed with a one-way valve (8) above.

3. The digestion device for environmental protection detection of water quality according to claim 1, characterized in that: The preheating structure (10) comprises a water pump (101), a connecting pipe (102), a water pipe (103) and a preheating frame (104), the water pump (101) is fixed on the left side of the top of the digestion box (1), the connecting pipe (102) is communicated at the top of the heat recovery water tank (6), and the other end of the connecting pipe (102) is communicated with the water pump (101), the water pipe (103) is communicated on the front side of the water pump (101), and the preheating frame (104) is fixed on the left side of the connecting plate (12), and a plurality of through grooves are formed in the surface of the preheating frame (104).

4. The digestion device for environmental protection detection of water quality according to claim 3, characterized in that: The end of the water pipe (103) away from the water pump (101) penetrates into the inside of the digestion box (1) and is communicated with the preheating frame (104), and the inside of the preheating frame (104) is hollow, the water pipe (103) is a telescopic hose, and the through groove of the preheating frame (104) is fixed with a heat conducting plate (17).

5. The digestion device for environmental protection detection of water quality according to claim 1, characterized in that: A plurality of positioning grooves (18) are formed in the top of the separation plate (3), and the placing barrel (5) is slidably connected with the inner wall of the positioning groove (18).

6. The digestion device for environmental protection detection of water quality according to claim 1, characterized in that: The position adjusting structure (14) comprises a threaded rod (141), a waterproof motor (142), a threaded sleeve (143) and a movable rod (144), the threaded rod (141) is rotatably connected to the right side of the rear of the inner wall of the digestion box (1), the waterproof motor (142) is fixed on the bottom of the inner wall of the digestion box (1), the output shaft of the waterproof motor (142) is fixedly connected with the front end of the threaded rod (141), the threaded sleeve (143) is threadedly connected to the rear side of the surface of the threaded rod (141), and the movable rod (144) is fixed to the right side of the bottom of the cleaning scraper (13), and the bottom end of the movable rod (144) is fixedly connected with the surface of the threaded sleeve (143).

7. The digestion device for environmental protection detection of water quality according to claim 6, characterized in that: The lower part of the right side of the inner wall of the digestion box (1) is provided with a limiting groove (15), the right side of the threaded sleeve (143) is fixedly provided with a limiting block (16), and one side of the limiting block (16) extends to the inside of the limiting groove (15) and is in sliding connection with the inner wall of the limiting groove (15).

Citation Information

Patent Citations

  • A digestion device for water quality testing

    CN218823530U