COD rapid digestion condensing device

By introducing multi-tube diversion, heating, and heat dissipation functions into the COD digester and adopting a detachable clamp mechanism, the problem of inconvenient cleaning caused by the fixed installation of reagent storage containers has been solved, thereby improving the digestion speed and detection accuracy.

CN224382933UActive Publication Date: 2026-06-19HUBEI YIAN TESTING TECH SERVICE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI YIAN TESTING TECH SERVICE CO LTD
Filing Date
2025-07-11
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The fixed installation of reagent storage containers in existing COD digesters makes cleaning inconvenient and affects the accuracy of detection.

Method used

A device was designed that includes a box body, a box cover, an inlet pipe, an outlet pipe, a controller, a collection box, a ventilation hood, a mounting cylinder, a cylinder body, a heating wire, and a cooling fan. The device distributes reagents through multiple delivery pipes and uses the heating wire for heating and the cooling fan for cooling. Combined with a detachable clamping mechanism, it facilitates the cleaning of reagent containers.

Benefits of technology

It improves reagent digestion speed, ensures detection accuracy, and simplifies the cleaning process of reagent containers.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224382933U_ABST
    Figure CN224382933U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of COD digestion condensation technology especially, more particularly to a kind of COD rapid digestion condensing device, including box and box cover, and box is provided with liquid inlet pipe, liquid outlet pipe, controller, fixed mounting has material collecting box on liquid inlet pipe, box is integrally connected with the ventilation hood and installation cylinder of circumferential distribution, and installation cylinder is placed with the cylinder body that reagent liquid is digested in, and the heating wire of circumferential distribution is arranged in cylinder body.The utility model is digested by setting up heat dissipation fan in box to accelerate airflow flow, multiple conveying pipes can be shunted to reagent, and installation cylinder inside is preheated by heating wire, and preheated installation cylinder can be digested to reagent in cylinder body, to further improve the speed of reagent rapid digestion;By setting up the pressure plate of symmetrical setting in cylinder body, when pressure plate is disconnected with conveying pipe, and the branch plate is disassembled, so that cylinder body can be taken out from box, to further make cylinder body more convenient when cleaning and maintaining in later period.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] Chemical oxygen demand (COD) is a chemically measured amount of reducing substances in a water sample that need to be oxidized. It is the oxygen equivalent of substances that can be oxidized by strong oxidants in wastewater, wastewater treatment plant effluent, and polluted water. It is an important and relatively quick parameter for organic pollution and is often represented by the symbol COD.

[0003] According to a COD rapid digestion and condensation device disclosed in announcement number CN222299306U, the device includes a digestion and condensation chamber, with several sets of exhaust ducts on three sides near the top. The device, consisting of exhaust ducts, diversion pipes, branch pipes, confluence pipes, drain pipes, support rods, a motor, a rotating shaft, and a cooling fan, effectively addresses the problem that existing COD digesters typically only use one set of sleeves to cool the solution inside the digester. The aforementioned document uses multiple branch pipes to divert reagents, but this method cannot quickly improve reagent digestion efficiency, causing reagents to remain in the diversion pipes for a prolonged period. Furthermore, the pipelines used for reagent delivery are fixedly installed inside the digestion chamber, making subsequent cleaning inconvenient and affecting the accuracy of subsequent batch testing. Utility Model Content

[0004] The purpose of this invention is to solve the problem of inconvenient cleaning caused by the fixed installation of reagent storage containers in the prior art, and to propose a COD rapid digestion and condensation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A COD rapid digestion and condensation device includes a housing and a housing cover. The housing is equipped with an inlet pipe, an outlet pipe, and a controller. A collection box is fixedly installed on the inlet pipe. A circumferentially distributed ventilation hood and a mounting cylinder are integrally connected to the housing. A cylinder for digesting the reagent solution is placed inside the mounting cylinder, and circumferentially distributed heating wires are installed inside the cylinder. A delivery pipe for transporting the reagent is connected between the cylinder and the collection box. A clamping mechanism for clamping the delivery pipe is provided on the cylinder. An output pipe for transporting the reagent is connected between the collection box and the outlet pipe. A cooling fan for cooling is rotatably installed inside the ventilation hood.

[0007] Preferably, the ventilation hood is an annular hollow structure with an opening on one side, the box body has evenly distributed ventilation holes, and the mounting cylinder is an annular structure with an opening at the top.

[0008] Preferably, the clamping mechanism includes a positioning ring fixedly installed on the cylinder, a symmetrically arranged moving rod slidingly sleeved inside the positioning ring, and a pressure plate fixedly installed on the moving rod to move against the conveying pipe. A spring is welded between the moving rod and the positioning ring. A ring frame slides on the conveying pipe, and symmetrically arranged positioning pins extending into the moving rod are fixedly installed on the ring frame. A limiting plug extending into the cylinder is fixedly installed on the mounting cylinder.

[0009] Preferably, the positioning ring and the ring frame are ring-shaped structures, the moving rod is horizontally positioned on both sides of the conveying pipe, the positioning ring has a guide groove for guiding the moving rod, and the two ends of the spring are respectively connected to the guide groove and the moving rod;

[0010] The box body is fixedly installed with circumferentially distributed guide posts, and a plate is slidably sleeved on the guide posts. A spring that cooperates with the guide posts is welded between the plate and the box body. A pressure ring extending to the ring frame is fixedly installed on the plate.

[0011] Preferably, the pressure plate is an arc-shaped structure adapted to the conveying pipe, the conveying pipe has a groove for receiving the pressure plate, the guide post is vertically arranged on one side of the ring frame, the spring is sleeved on the upper end of the pressure plate extending to the outside of the guide post, and the pressure ring is an annular structure.

[0012] Preferably, the mounting cylinder has a mounting groove corresponding to the output pipe, and a support plate extending to the liquid outlet pipe is fixedly installed on the output pipe, and a fixing bolt connected to the liquid outlet pipe is threaded on the support plate.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This utility model accelerates airflow by setting a cooling fan inside the box, and multiple delivery pipes can divert reagents. The heating wire preheats the inside of the mounting cylinder, and the preheated mounting cylinder can digest the reagents inside the cylinder, thereby improving the speed of rapid reagent digestion.

[0015] 2. This utility model provides a symmetrical arrangement of pressure plates on the cylinder body. The two pressure plates can clamp the conveying pipe. When the pressure plates are disconnected from the conveying pipe, the conveying pipe can be removed from the cylinder body, and the support plate can be disassembled, allowing the cylinder body to be removed from the box body. This makes the cylinder body easier to clean and maintain in the later stages. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of a COD rapid digestion and condensation device proposed in this utility model;

[0017] Figure 2This is a schematic diagram of the structure of a COD rapid digestion and condensation device proposed in this utility model;

[0018] Figure 3 This is an enlarged schematic diagram of structure A of the COD rapid digestion and condensation device proposed in this utility model;

[0019] Figure 4 This is a top sectional view of the delivery pipe of a COD rapid digestion and condensation device proposed in this utility model.

[0020] In the diagram: 1. Box body; 2. Box cover; 3. Liquid inlet pipe; 4. Collection box; 5. Liquid outlet pipe; 6. Mounting cylinder; 7. Cylinder body; 8. Conveying pipe; 9. Output pipe; 10. Heating wire; 11. Positioning ring; 12. Moving rod; 13. Spring one; 14. Pressure plate; 15. Groove; 16. Ring frame; 17. Positioning post; 18. Plate body; 19. Limiting plug; 20. Guide post; 21. Spring two; 22. Pressure ring; 23. Cooling fan. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A COD rapid digestion and condensation device includes a housing 1 and a housing cover 2. The housing 1 is provided with an inlet pipe 3, an outlet pipe 5, and a controller. A collection box 4 is fixedly installed on the inlet pipe 3. A circumferentially distributed ventilation hood and an installation cylinder 6 are integrally connected to the housing 1. The ventilation hood is a ring-shaped hollow structure with an opening on one side. The housing 1 has evenly distributed vent holes. After the controller is powered on, it sends an opening signal to the cooling fan 23, which enables the cooling fan 23 to accelerate the airflow inside the housing 1. After the controller sends an opening signal to the heating wire 10, the heating wire 10 turns on and transfers heat energy to the installation cylinder 6.

[0023] The mounting cylinder 6 is an annular structure with an open top, and a cylinder 7 for digesting the reagent solution is placed inside the mounting cylinder 6. The cylinder 7 is equipped with circumferentially distributed heating wires 10. The cylinder 7 is connected to the collection box 4 by a delivery pipe 8 for transporting the reagent. By setting multiple circumferentially distributed mounting cylinders 6 in the box 1, multiple cylinders 7 can be placed in the mounting cylinder 6 at the same time, thereby uniformly distributing the reagent. The reagent can be quickly digested by heating with heating wires 10, thereby improving the efficiency of reagent digestion. The cylinder 7 is equipped with a clamping mechanism for clamping the delivery pipe 8.

[0024] The clamping mechanism includes a positioning ring 11 fixedly installed on the cylinder 7. A symmetrically arranged moving rod 12 is slidably sleeved inside the positioning ring 11, and a pressure plate 14 that moves against the conveying pipe 8 is fixedly installed on the moving rod 12. A spring 13 is welded between the moving rod 12 and the positioning ring 11. A ring frame 16 slides on the conveying pipe 8, and a symmetrically arranged positioning post 17 that extends into the moving rod 12 is fixedly installed on the ring frame 16. The ring frame 16 drives the positioning post 17 to pass through the positioning ring 11 and extend into the moving rod 12, which can lock the position of the two moving rods 12. A limiting plug 19 that extends into the cylinder 7 is fixedly installed on the mounting cylinder 6. After the mounting cylinder 6 drives the limiting plug 19 to extend into the cylinder 7, it can lock the mounting cylinder 6 and the cylinder 7.

[0025] The positioning ring 11 and the ring frame 16 are ring-shaped structures. The moving rod 12 is horizontally positioned on both sides of the conveying pipe 8. The positioning ring 11 has a guide groove for guiding the moving rod 12. The two ends of the spring 13 are connected to the guide groove and the moving rod 12, respectively.

[0026] The housing 1 is fixedly installed with circumferentially distributed guide posts 20, and a plate 18 is slidably sleeved on the guide posts 20. A spring 21 that cooperates with the guide posts 20 is welded between the plate 18 and the housing 1. A pressure ring 22 extending to the ring frame 16 is fixedly installed on the plate 18. The guide posts 20 guide the plate 18 so that the plate 18 can smoothly pull the pressure ring 22 when it moves. The spring 21 resets the plate 18. When the plate 18 is unloaded, the plate 18 can drive the pressure ring 22 to press the ring frame 16.

[0027] The pressure plate 14 is an arc-shaped structure adapted to the conveying pipe 8. The conveying pipe 8 has a groove 15 for housing the pressure plate 14. The guide post 20 is vertically arranged on one side of the ring frame 16. The second spring 21 is sleeved on the upper end of the pressure plate 14 extending outside the guide post 20. The pressure ring 22 is an annular structure. By setting the pressure plate 14 to an arc-shaped structure adapted to the conveying pipe 8, the contact area between the pressure plate 14 and the conveying pipe 8 can be increased. By setting the pressure ring 22 to an annular structure, the contact area between the pressure ring 22 and the ring frame 16 can be increased.

[0028] An output pipe 9 for transporting reagents is connected between the collection box 4 and the liquid outlet pipe 5. A cooling fan 23 for cooling is rotatably installed inside the ventilation hood. The mounting cylinder 6 has a mounting groove corresponding to the output pipe 9. A support plate extending to the liquid outlet pipe 5 is fixedly installed on the output pipe 9, and a fixing bolt connected to the liquid outlet pipe 5 is threaded on the support plate. After removing the clamping plate, the output pipe 9 is disconnected from the liquid outlet pipe 5. After the conveying pipe 8 is disconnected from the cylinder 7, the cylinder 7 and the output pipe 9 can be removed from the box 1 for cleaning, thereby ensuring the accuracy of the next batch of reagent testing.

[0029] The functional principle of this utility model can be explained through the following operation methods:

[0030] When the reagent needs to be digested, the controller sends an activation command to the heating wire 10 and the cooling fan 23. After the heating wire 10 is powered on, it inputs heat energy into the mounting cylinder 6. After the cooling fan 23 is powered on, it delivers the external airflow into the chamber 1.

[0031] The reagent enters the collection box 4 through the liquid inlet pipe 3 and enters different cylinders 7 through multiple conveying pipes 8. The heat energy in the installation cylinder 6 can digest the reagent in the cylinder 7. The digested reagent will enter the liquid outlet pipe 5 through the output pipe 9.

[0032] When it is necessary to clean the cylinder 7;

[0033] Remove the cover 2 to open the box body 1, and lift the plate 18. The plate 18 causes the pressure ring 22 to disconnect from the ring frame 16. Pull out the ring frame 16 so that the positioning column 17 is disconnected from the two moving rods 12. Press the two moving rods 12 so that the spring 13 is stressed and the moving rod 12 causes the pressure plate 14 to disconnect from the groove 15 on the delivery pipe 8. Pull out the delivery pipe 8 so that the delivery pipe 8 is disconnected from the cylinder 7. Remove the fixing bolt so that the support plate is disconnected from the liquid outlet pipe 5. Take out the cylinder 7 through the opening of the box body 1.

[0034] Repeat the above steps to remove the other cylinders 7 and perform a collective cleaning.

[0035] 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 COD rapid digestion condensing device, comprising a box (1) and a box cover (2), and the box (1) is provided with a liquid inlet pipe (3), a liquid outlet pipe (5) and a controller, characterized in that, A collection box (4) is fixedly installed on the inlet pipe (3). A circumferentially distributed ventilation hood and a mounting cylinder (6) are integrally connected to the box body (1). A cylinder (7) for digesting the reagent solution is placed inside the mounting cylinder (6). A circumferentially distributed heating wire (10) is provided inside the cylinder (7). A delivery pipe (8) for transporting the reagent is connected between the cylinder (7) and the collection box (4). A clamping mechanism for clamping the delivery pipe (8) is provided on the cylinder (7). An output pipe (9) for transporting the reagent is connected between the collection box (4) and the outlet pipe (5). A cooling fan (23) for cooling is rotatably installed inside the ventilation hood.

2. The COD rapid digestion and condensation device according to claim 1, characterized in that, The ventilation hood is a ring-shaped hollow structure with an opening on one side, and the box (1) has evenly distributed ventilation holes. The mounting cylinder (6) is a ring-shaped structure with an opening at the top.

3. The COD rapid digestion and condensation device according to claim 1, characterized in that, The clamping mechanism includes a positioning ring (11) fixedly installed on the cylinder (7), a symmetrically arranged moving rod (12) is slidably sleeved inside the positioning ring (11), and a pressure plate (14) is fixedly installed on the moving rod (12) to move against the conveying pipe (8). A spring (13) is welded between the moving rod (12) and the positioning ring (11). A ring frame (16) slides on the conveying pipe (8), and a positioning post (17) is fixedly installed on the ring frame (16) and extends into the moving rod (12). A limiting plug (19) extending into the cylinder (7) is fixedly installed on the mounting cylinder (6).

4. The COD rapid digestion and condensation device according to claim 3, characterized in that, The positioning ring (11) and the ring frame (16) are ring-shaped structures. The moving rod (12) is horizontally positioned on both sides of the conveying pipe (8). The positioning ring (11) has a guide groove for guiding the moving rod (12). The two ends of the spring (13) are connected to the guide groove and the moving rod (12) respectively. The box (1) is fixedly installed with circumferentially distributed guide posts (20), and a plate (18) is slidably sleeved on the guide posts (20). A spring (21) that cooperates with the guide posts (20) is welded between the plate (18) and the box (1). A pressure ring (22) extending to the ring frame (16) is fixedly installed on the plate (18).

5. A COD rapid digestion and condensation device according to claim 4, characterized in that, The pressure plate (14) is an arc-shaped structure adapted to the conveying pipe (8). The conveying pipe (8) has a groove (15) for receiving the pressure plate (14). The guide post (20) is vertically set on one side of the ring frame (16). The second spring (21) is sleeved on the upper end of the pressure plate (14) extending to the guide post (20). The pressure ring (22) is a ring-shaped structure.

6. The COD rapid digestion and condensation device according to claim 1, characterized in that, The mounting cylinder (6) has a mounting groove corresponding to the output pipe (9). A support plate extending to the liquid outlet pipe (5) is fixedly installed on the output pipe (9), and a fixing bolt connected to the liquid outlet pipe (5) is threaded on the support plate.