COD automatic liquid adding cleaning and digestion device

Abstract

This utility model discloses an automatic COD dispensing, cleaning, and digestion device, including a base, two support columns fixed to the top of the base, a dispensing structure on the left side of the base, and a cleaning structure on the right side of the base. This COD automatic dispensing, cleaning, and digestion device is a semi-automatic COD digester, innovatively improved upon a manual device. By adding automatic dispensing and cleaning functions, operators can complete the dispensing and cleaning processes without manual intervention, simply by performing simple operations. This greatly simplifies the operation process and improves the convenience and accuracy of operation. Furthermore, since only partial automation is added, the impact on the overall structure of the device is minimal, and the increase in production costs is relatively limited. Compared with fully automatic COD digesters, this semi-automatic device has a significant price advantage and broad market application prospects.

Description

Technical Field

[0001] This utility model belongs to the technical field of COD digesters, specifically relating to an automatic COD liquid addition cleaning digester. Background Technology

[0002] Chemical oxygen demand (COD) is an important indicator for measuring the degree of organic pollution in water bodies. Accurate measurement of COD value is of vital importance for environmental monitoring, sewage treatment and water resource protection. In the COD detection process, the digestion process is one of the key steps. Its purpose is to oxidize and decompose the organic matter in the water sample under the action of a strong oxidant, so as to accurately measure the amount of oxidant consumed in the oxidation process and then calculate the COD value.

[0003] COD digesters are commonly used equipment in environmental monitoring. The market mainly offers two types: manual and fully automatic. Manual digesters only have heating and condensation functions; adding reagents and cleaning require manual operation. Because digestion equipment is typically quite tall, operators need to precisely control the amount of reagent added during the addition process, while simultaneously gently shaking the conical flask at the bottom to ensure thorough and uniform mixing of the reagent and water sample. This series of operations is quite difficult for a single person. Fully automatic digesters also include automatic titration functions and are much more expensive than manual ones. They integrate numerous automated control components and sophisticated mechanical structures, significantly increasing the research and manufacturing costs and resulting in generally higher market prices. This makes them unaffordable for many laboratories, small and medium-sized enterprises, and grassroots monitoring units with limited budgets. Therefore, this utility model proposes an automatic COD digester with added reagents and cleaning function. Utility Model Content

[0004] The purpose of this invention is to provide an automatic COD dispensing, cleaning, and digestion device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic COD dispensing, cleaning, and digestion device, comprising a base, two support columns fixed to the top of the base, a top seat fixed to the top of the two support columns and located directly above the base, multiple condenser top bottles disposed on the top of the top seat, an operation panel disposed on the front surface of the top seat, and multiple condenser bottom tubes disposed at the bottom of the top seat and connected to the condenser top bottles, and further comprising...

[0006] The liquid filling structure located on the left side of the top seat includes a liquid storage bottle and a liquid filling metering pump installed on the left side surface of the top seat. The liquid filling metering pump is connected to the liquid storage bottle via a hose. The outlet of the liquid filling metering pump is connected to a liquid filling tube, and the top end of the liquid filling tube extends upward to the top of the condenser top bottle.

[0007] The cleaning structure located on the right side of the top seat includes a distilled water storage bottle and a cleaning metering pump mounted on the right side surface of the top seat. The cleaning metering pump and the distilled water storage bottle are connected by a hose. The outlet of the cleaning metering pump is connected to a cleaning tube. The top end of the cleaning tube extends upward to the top of the condenser top bottle and is equipped with a spray head.

[0008] Preferably, the operation panel is provided with multiple operation buttons.

[0009] Preferably, an L-shaped fixing seat is fixed on each of the two sides of the top seat, and the distilled water storage bottle and the liquid addition storage bottle are respectively fixed on the two L-shaped fixing seats.

[0010] Preferably, it also includes two adjustable tube supports, which are symmetrically arranged on the top of the top seat.

[0011] Preferably, the adjustable tube rack includes a bottom support cylinder fixed to the top surface of the top seat, a threaded top support rod movably installed at the top of the bottom support cylinder, and a U-shaped clamp fixed to the top surface of the threaded top support rod.

[0012] Preferably, both inner walls of the U-shaped clip are fixed with strip-shaped limiting blocks, and the cross-section of the strip-shaped limiting blocks is semi-circular.

[0013] Preferably, the bottom support cylinder has a threaded groove inside that matches the threaded top support rod, and the bottom end of the threaded top support rod is screwed into the threaded groove.

[0014] Preferably, a square heating plate is also installed on the top surface of the base.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: The COD automatic liquid addition, cleaning, and digestion device proposed in this utility model is a semi-automatic COD digester. It is an innovative improvement on the manual equipment. By adding automatic liquid addition and cleaning functions, operators do not need to manually intervene during the liquid addition and cleaning process. They can complete the relevant steps with simple operations, which greatly simplifies the operation process and improves the convenience and accuracy of operation. At the same time, since only some automation functions are added, the impact on the overall structure of the equipment is small, and the increase in production costs is relatively limited. Compared with fully automatic COD digesters, the semi-automatic equipment designed in this way has a significant price advantage, can meet the needs of more users, and has broad market application prospects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0018] Figure 3 This is a schematic diagram of the adjustable pipe rack of this utility model;

[0019] Figure 4 This is a cross-sectional view of the adjustable pipe rack of this utility model;

[0020] In the diagram: 1. Base; 2. Support column; 3. Top seat; 31. L-shaped fixing seat; 4. Operation panel; 5. Condenser top bottle; 6. Condenser bottom tube; 71. Distilled water storage bottle; 72. Cleaning metering pump; 73. Cleaning tube; 74. Spray head; 81. Liquid storage bottle; 82. Liquid metering pump; 83. Liquid filling tube; 9. Adjustable tube rack; 91. Bottom support cylinder; 911. Threaded groove; 92. Threaded top support rod; 93. U-shaped clamp; 931. Strip-shaped limit block. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Please see Figure 1 and Figure 2 This is the first embodiment of the present invention, which provides a technical solution: an automatic COD dispensing cleaning and digestion device, including a base 1, two support columns 2 fixed to the top of the base 1, a top seat 3 fixed to the top of the two support columns 2 and located directly above the base 1, multiple condensing top bottles 5 set on the top of the top seat 3, an operation panel 4 set on the front surface of the top seat 3, and multiple condensing bottom tubes 6 set on the bottom of the top seat 3 and connected to the condensing top bottles 5. A square heating plate is also installed on the top surface of the base 1. In subsequent use, the conical flask can be placed on the square heating plate on the top of the base 1 for heating. The above structures are all technologies that have been disclosed in the prior art. For the specific structural principles, please refer to the existing patent with publication number CN206656908U, which will not be elaborated here.

[0024] Also includes

[0025] The liquid filling structure located on the left side of the top seat 3 includes a liquid storage bottle 81 and a liquid filling metering pump 82 mounted on the left surface of the top seat 3. The liquid filling metering pump 82 is connected to the liquid storage bottle 81 via a flexible hose. The outlet of the liquid filling pump 82 is connected to a liquid filling tube 83. Both the flexible hose and the liquid filling tube 83 are made of stable, non-polluting, and corrosion-resistant polytetrafluoroethylene (PTFE). The top end of the liquid filling tube 83 extends upward to the top of the condenser top bottle 5. When in use, the operator can manually move the liquid filling tube 83 to the condenser bottle that needs liquid filling. Above the top bottle 5, the liquid storage bottle 81 contains silver sulfate-sulfuric acid solution. The liquid storage bottle 81 is made of brown glass and has a capacity of 500 mL. The liquid dispensing metering pump 82 dispenses 15 mL at a slow dispensing speed of (2-5) mL / min. When additional liquid needs to be added, the operator only needs to start the liquid dispensing metering pump 82, which will automatically inject the silver sulfate-sulfuric acid solution in the liquid storage bottle 81 into the condenser top bottle 5 through the dispensing tube 83, thus completing the automatic dispensing.

[0026] The cleaning structure located on the right side of the top seat 3 includes a distilled water storage bottle 71 and a cleaning metering pump 72 mounted on the right side surface of the top seat 3. The cleaning metering pump 72 and the distilled water storage bottle 71 are connected by a hose. The outlet of the cleaning metering pump 72 is connected to a cleaning tube 73. Both the hose and the cleaning tube 73 are made of polytetrafluoroethylene (PTFE), which is stable, non-polluting, and corrosion-resistant. The top of the cleaning tube 73 extends upward to the top of the condenser top bottle 5 and is equipped with a spray head 74. The distilled water storage bottle 71 contains distilled water and is made of polyethylene. The capacity of the distilled water storage bottle 71 is 1L. The cleaning metering pump 72 dispenses 45mL of water at a fast dispensing speed, designed to be (10-30)mL / min. When cleaning is required, the operator only needs to start the cleaning metering pump 72, which sprays the distilled water in the distilled water storage bottle 71 into the condenser top bottle 5 through the spray head 74 at the end of the cleaning tube 73, thus completing the automatic spraying.

[0027] In this embodiment, preferably, the operation panel 4 is provided with multiple operation buttons, including a liquid addition function button and a cleaning function button that are electrically connected to the liquid addition metering pump 82 and the cleaning metering pump 72, respectively, so that the operator can control the start and stop of the liquid addition metering pump 82 and the cleaning metering pump 72 on the operation panel 4.

[0028] In this embodiment, preferably, an L-shaped fixing seat 31 is fixed to both sides of the top seat 3 by bolts. The distilled water storage bottle 71 and the liquid addition storage bottle 81 are respectively fixed on the two L-shaped fixing seats 31. The L-shaped fixing seats 31 are designed to provide stable support for the liquid addition storage bottle 81 and the distilled water storage bottle 71.

[0029] In this embodiment, the liquid addition metering pump 82 and the cleaning metering pump 72 are both common metering pumps in the prior art. For specific structural principles, please refer to the existing patent with publication number CN213450880U.

[0030] This automatic COD dispensing, cleaning, and digestion unit adds automatic dispensing and cleaning functions to the existing traditional manual type, which can improve the convenience of equipment operation, increase the automation level of COD digester, reduce manual operation in COD detection and digestion, and at the same time, the increase in the production cost of COD digester is small, and it has a greater price advantage compared with the existing traditional fully automatic type.

[0031] Example 2

[0032] Please see Figures 1 to 4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but with the difference that it also includes two adjustable pipe supports 9. The two adjustable pipe supports 9 are symmetrically arranged on the top of the top seat 3, and are used to provide auxiliary support for the liquid addition pipe 83 and the cleaning pipe 73 respectively.

[0033] In this embodiment, preferably, the adjustable pipe rack 9 includes a bottom support cylinder 91 welded and fixed to the top surface of the top seat 3, a threaded top support rod 92 movably installed at the top of the bottom support cylinder 91, and a U-shaped clamp 93 welded and fixed to the top surface of the threaded top support rod 92. The liquid filling pipe 83 and the cleaning pipe 73 can be effectively supported and clamped in the U-shaped clamp 93.

[0034] In this embodiment, preferably, strip-shaped limiting blocks 931 are fixed on both inner walls of the U-shaped clamp 93, and the cross-section of the strip-shaped limiting blocks 931 is semi-circular. The strip-shaped limiting blocks 931 are made of rubber material and will undergo elastic deformation when squeezed. When the liquid filling tube 83 or the cleaning tube 73 is pressed into the inside of the U-shaped clamp 93, it will squeeze the strip-shaped limiting blocks 931, causing the strip-shaped limiting blocks 931 to undergo elastic deformation until the liquid filling tube 83 or the cleaning tube 73 is successfully pressed into the inside of the U-shaped clamp 93. Then, the two strip-shaped limiting blocks 931 can limit the liquid filling tube 83 or the cleaning tube 73, ensuring clamping stability.

[0035] In this embodiment, preferably, the bottom support cylinder 91 has a threaded groove 911 inside that matches the threaded top support rod 92. The bottom end of the threaded top support rod 92 is screwed into the threaded groove 911. Later, the operator can rotate the threaded top support rod 92 to make the threaded top support rod 92 rise and fall under the action of the thread, thereby adaptively adjusting the height of the U-shaped clamp 93 and improving the flexibility and adjustability of use.

[0036] Although embodiments of the present invention have been shown and described (see the detailed description above), 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. An automatic COD dispensing and cleaning digester, comprising a base (1), two support columns (2) fixed to the top of the base (1), a top seat (3) fixed to the top of the two support columns (2) and located directly above the base (1), a plurality of condenser top bottles (5) disposed on the top of the top seat (3), an operation panel (4) disposed on the front surface of the top seat (3), and a plurality of condenser bottom tubes (6) disposed at the bottom of the top seat (3) and connected to the condenser top bottles (5), characterized in that: Also includes The liquid filling structure located on the left side of the top seat (3) includes a liquid storage bottle (81) and a liquid filling metering pump (82) installed on the left side surface of the top seat (3). The liquid filling metering pump (82) is connected to the liquid storage bottle (81) by a hose. The liquid outlet of the liquid filling metering pump (82) is connected to a liquid filling tube (83). The top end of the liquid filling tube (83) extends upward to the top of the condenser top bottle (5). The cleaning structure located on the right side of the top seat (3) includes a distilled water storage bottle (71) and a cleaning metering pump (72) installed on the right side surface of the top seat (3). The cleaning metering pump (72) and the distilled water storage bottle (71) are connected by a hose. The outlet of the cleaning metering pump (72) is connected to a cleaning tube (73). The top end of the cleaning tube (73) extends upward to the top of the condenser top bottle (5) and is equipped with a spray head (74).

2. The COD automatic liquid dosing cleaning and digestion device according to claim 1, characterized in that: The operation panel (4) is equipped with multiple operation buttons.

3. The COD automatic liquid dosing cleaning and digestion device according to claim 1, characterized in that: An L-shaped fixing seat (31) is fixed on each of the two sides of the top seat (3), and the distilled water storage bottle (71) and the liquid storage bottle (81) are respectively fixed on the two L-shaped fixing seats (31).

4. The COD automatic liquid dosing cleaning and digestion device according to claim 1, characterized in that: It also includes two adjustable tube supports (9), which are symmetrically arranged on the top of the top seat (3).

5. The COD automatic liquid dosing cleaning and digestion device according to claim 4, characterized in that: The adjustable tube rack (9) includes a bottom support cylinder (91) fixed to the top surface of the top seat (3), a threaded top support rod (92) movably installed at the top of the bottom support cylinder (91), and a U-shaped clamp (93) fixed to the top surface of the threaded top support rod (92).

6. The COD automatic liquid dosing cleaning and digestion device according to claim 5, characterized in that: Both sides of the U-shaped clip (93) are fixed with strip-shaped limiting blocks (931), and the cross-section of the strip-shaped limiting blocks (931) is semi-circular.

7. The COD automatic liquid dosing cleaning and digestion device according to claim 6, characterized in that: The bottom support cylinder (91) has a threaded groove (911) inside that matches the threaded top support rod (92), and the bottom end of the threaded top support rod (92) is screwed into the threaded groove (911).

8. The COD automatic liquid dosing cleaning and digestion device according to claim 1, characterized in that: A square heating plate is also installed on the top surface of the base (1).

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