A COD digester

Abstract

The utility model discloses a kind of COD digesters, including digester base and digester body, also including left side protective cover and right side protective cover, left side protective cover is fixed in the top end of digester base one side, the side of left side protective cover is equipped with step recess, the inside of step recess is equipped with locking mouth, the side of right side protective cover is equipped with insertion portion, the end of insertion portion is equipped with locking tongue, right side protective cover is connected with step recess by insertion portion, locking tongue is connected with locking mouth, and then with left side protective cover movable connection.The utility model is through being equipped with left side protective cover and right side protective cover, left side protective cover is fixed in the top end of digester base one side, right side protective cover is connected with step recess by insertion portion, locking tongue is connected with locking mouth, and then with left side protective cover movable connection, so it can better protect the digestion bottle cover in digestion process, avoid splashing out water bead scald personnel when liquid boils, ensure the safety in operating process.

Description

Technical Field

[0001] This utility model relates to the field of digester technology, and in particular to a COD digester. Background Technology

[0002] In the field of environmental protection, chemical oxygen demand (COD) is one of the main control indicators for surface water and wastewater, and an important comprehensive indicator of organic pollution in water. COD measurement requires a special digestion instrument. The COD digester uses a high-temperature COD reflux digestion method with timed control of the heating plate, and can simultaneously heat 6 / 8 / 12 special digestion bottles with reflux devices.

[0003] Existing technology, such as the patent publication number CN208537275U, discloses a COD digester, which is applied in the field of environmental protection testing. It solves the technical problem of difficulty in separating the condenser tube and the digestion bottle in the prior art. The key points of its technical solution are: it includes a base and a condenser unit connected to the base. The base includes a shelf and a digestion heating platform located below the shelf. One side of the base is provided with a drive motor, a gear connected to the output shaft of the drive motor, and a rack meshing with the gear and slidingly disposed on the inner side wall of the base. The top of the rack is connected to the bottom of the shelf. The drive motor drives the gear to rotate, thereby driving the rack to slide up and down along the inner side wall of the base, thereby moving the shelf. When it is necessary to remove the condenser tube from the digestion bottle, the shelf is controlled to move downward, so that a large gap is formed between the bottom end of the condenser tube and the digestion bottle, which facilitates the removal of the condenser tube and saves time and effort in the lifting process.

[0004] The aforementioned digester has the disadvantage of lacking a protective device. Since a heating step is performed during the digestion process, the liquid will boil when it reaches its boiling point, and the splashing water droplets may scald people. Therefore, we have designed a COD digester. Utility Model Content

[0005] The purpose of this invention is to provide a COD digester to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a COD digester, comprising a digester base and a digester body, wherein the digester body is mounted on the top of the digester base via a lifting guide column, the top of the digester base has multiple matrix-distributed digestion bottle slots, and also includes a left protective cover and a right protective cover, wherein the left protective cover is fixed to one side of the top of the digester base, and one side of the left protective cover has a stepped recess, the inner side of which has a locking port, and one side of the right protective cover has an insertion part, one end of which has a locking tongue, and the right protective cover is movably connected to the left protective cover via the insertion part, the stepped recess, the locking tongue, and the locking port.

[0007] Preferably, a lifting column sleeve is installed at the middle of the top of the digester body, and a guide rod is movably installed inside the lifting column sleeve. One end of the guide rod extends to the bottom of the digester body and is fitted with a U-shaped frame. A square carrier plate is fixedly installed at the bottom of the U-shaped frame.

[0008] Preferably, the bottom end of the square carrier plate is equipped with a plurality of connecting posts, one end of each of the plurality of connecting posts is equipped with a digestion tube clamp connector, and each digestion tube clamp connector is provided with a limiting flange on its side.

[0009] Preferably, compression pads are installed on both ends of the lifting column sleeve, and the lifting column sleeve is embedded in the opening of the digester body through the compression pads.

[0010] Preferably, the bottom end of the lifting column sleeve is provided with a locking part, which engages with the top end of the C-shaped frame.

[0011] Preferably, the other end of the guide rod is provided with an adjusting cap, the diameter of which is greater than the maximum width of the lifting column sleeve.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] (1) This utility model provides a COD digester, which is equipped with a left protective cover and a right protective cover. The left protective cover is fixed to one side of the top of the digester base, and the right protective cover is connected to the stepped recess through the insertion part and the locking tongue is connected to the locking port, and then movably connected to the left protective cover. This can better protect the digestion bottle during the digestion process, avoid splashing water droplets when the liquid boils and scalding personnel, and ensure the safety of the operation process. Moreover, the left and right protective covers are easy to disassemble and are highly practical. A square carrier plate is fixed at the bottom of the C-shaped frame, and multiple connecting columns are installed at the bottom of the square carrier plate. One end of each of the multiple connecting columns is equipped with a digestion tube clamp connector. Each digestion tube clamp connector is provided with a limiting flange on the side, which facilitates better installation and limiting of the digestion tube. At the same time, it is convenient to adjust the vertical height of the digestion tube, which can better align with the mouth of the digestion bottle. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the square carrier plate of this utility model.

[0016] Figure 3 This is an exploded structural diagram of the bayonet part and the C-shaped frame of this utility model.

[0017] In the diagram: 1. Digester base; 2. Digester body; 3. Digestion bottle inlet; 4. Left protective cover; 5. Right protective cover; 6. Insertion part; 7. Locking tongue; 8. Stepped recess; 9. Locking port; 10. Lifting column sleeve; 11. Guide rod; 12. C-shaped frame; 13. Square carrier plate; 14. Connecting column; 15. Digestion tube clamp connector; 16. Limiting flange; 17. Squeezing pad; 18. Adjusting cap; 19. Clamping part. Detailed Implementation

[0018] 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.

[0019] This utility model provides, for example Figure 1-3 The image shows a COD digester;

[0020] Example 1: The COD digester includes a digester base 1 and a digester body 2. The digester body 2 is installed on the top of the digester base 1 via a lifting guide column. The top of the digester base 1 has multiple matrix-distributed digestion bottle slots 3. It also includes a left protective cover 4 and a right protective cover 5. The left protective cover 4 is fixed to one side of the top of the digester base 1. A stepped recess 8 is provided on one side of the left protective cover 4. A locking port 9 is provided on the inner side of the stepped recess 8. An insertion part 6 is installed on one side of the right protective cover 5. A locking tongue 7 is installed at one end of the insertion part 6. The right protective cover 5 is connected to the stepped recess 8 through the insertion part 6 and to the locking port 9 through the locking tongue 7, and is thus movably connected to the left protective cover 4.

[0021] The right protective cover 5 is connected to the stepped recess 8 via the insertion part 6 and the locking tongue 7 is connected to the locking port 9, and then is movably connected to the left protective cover 4. This can better protect the digestion bottle during the digestion process, prevent water droplets from splashing out and scalding personnel when the liquid boils, and ensure the safety of the operation process.

[0022] Example 2: The COD digester includes a digester base 1 and a digester body 2. The digester body 2 is mounted on the top of the digester base 1 via a lifting guide column. The top of the digester base 1 has multiple matrix-distributed digestion bottle slots 3. A lifting column sleeve 10 is installed in the middle of the top of the digester body 2. A guide rod 11 is movably installed inside the lifting column sleeve 10. One end of the guide rod 11 extends to the bottom of the digester body 2 and is fitted with a C-shaped frame 12. A square carrier plate 13 is fixedly installed at the bottom of the C-shaped frame 12. Multiple connecting columns 14 are installed at the bottom of the square carrier plate 13. A digestion tube clamp connector 15 is installed at one end of each of the multiple connecting columns 14. A limiting flange 16 is provided on the side of each digestion tube clamp connector 15.

[0023] Each digestion tube is connected to the inside of the digestion tube clamp connector 15. The limiting flange 16 abuts against and limits the digestion tube on the inside of the digestion tube clamp connector 15, which facilitates better installation and limiting of the digestion tube. At the same time, it is convenient to adjust the vertical height of the digestion tube so as to better align it with the mouth of the digestion bottle.

[0024] The number of digestion tube clamps 15 is equal to the number of digestion bottle slots 3.

[0025] Furthermore, such as Figure 2 and Figure 3 As shown, in order to better connect the lifting column sleeve 10 to the digester body 2, and at the same time to connect the shaped frame 12 to the lifting column sleeve 10 when it moves to the highest position, compression pads 17 are installed on both sides of the lifting column sleeve 10. The lifting column sleeve 10 is embedded in the opening of the digester body 2 through the compression pads 17. The bottom end of the lifting column sleeve 10 is provided with a locking part 19, which is engaged with the top end of the shaped frame 12.

[0026] Furthermore, in order to facilitate the adjustment of the vertical height of the guide rod 11 and realize the adjustment of the U-shaped frame 12 and the square carrier plate 13, an adjustment cap 18 is provided at the other end of the guide rod 11. The diameter of the adjustment cap 18 is greater than the maximum width of the lifting column sleeve 10.

[0027] The working principle of the digester body 2 in this scheme is the same as that of existing COD digesters. COD digesters typically use electric heating to provide a stable heat source, heating the reactor to a high temperature so that the sample undergoes a digestion reaction at that temperature. During the heating process, organic matter and other substances in the water sample are subjected to high temperature and pressure, and are oxidized and decomposed into carbon dioxide, water, and inorganic substances. The reflux device of the digester body 2 includes a condenser and a reflux pipe, which are used to condense the vapor generated by the reaction and reflux it back into the reaction flask to ensure that the reaction proceeds completely. Modern COD digesters mostly use air cooling and water cooling technologies to replace the traditional circulating water cooling method, making operation more convenient.

[0028] Measurement and Calculation: The COD value of a water sample can be calculated by measuring the amount of oxygen consumed during the decomposition process (usually through titration analysis or colorimetry).

[0029] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A COD digester, comprising a digester base (1) and a digester body (2), wherein the digester body (2) is mounted on the top of the digester base (1) via a lifting guide column, and the top of the digester base (1) is provided with a plurality of matrix-distributed digestion bottle slots (3), characterized in that, It also includes a left protective cover (4) and a right protective cover (5). The left protective cover (4) is fixed to one side of the top of the digester base (1). A stepped recess (8) is provided on one side of the left protective cover (4). A locking port (9) is provided on the inner side of the stepped recess (8). An insertion part (6) is installed on one side of the right protective cover (5). A locking tongue (7) is installed at one end of the insertion part (6). The right protective cover (5) is connected to the stepped recess (8) through the insertion part (6) and to the locking port (9) through the locking tongue (7). It is then movably connected to the left protective cover (4).

2. The COD digester according to claim 1, characterized in that, A lifting column sleeve (10) is installed at the middle of the top of the digester body (2). A guide rod (11) is movably installed inside the lifting column sleeve (10). One end of the guide rod (11) extends to the bottom of the digester body (2) and is fitted with a U-shaped frame (12). A square carrier plate (13) is fixedly installed at the bottom of the U-shaped frame (12).

3. A COD digester according to claim 2, characterized in that, The bottom end of the square carrier plate (13) is equipped with a plurality of connecting posts (14), and one end of each of the plurality of connecting posts (14) is equipped with a digestion tube clamp connector (15), and each digestion tube clamp connector (15) is provided with a limiting flange (16) on its side.

4. A COD digester according to claim 2, characterized in that, The lifting column sleeve (10) has compression pads (17) installed on both sides, and the lifting column sleeve (10) is embedded in the opening of the digester body (2) through the compression pads (17).

5. A COD digester according to claim 2, characterized in that, The bottom end of the lifting column sleeve (10) is provided with a latch (19), which is engaged with the top end of the shaped frame (12).

6. A COD digester according to claim 2, characterized in that, The other end of the guide rod (11) is provided with an adjusting cap (18), the diameter of which is greater than the maximum width of the lifting column sleeve (10).

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