COD (Chemical Oxygen Demand) digestion device

Abstract

The utility model discloses a COD (Chemical Oxygen Demand) digestion device which comprises a heating platform, a condensation pipe frame and a plurality of reflux condensers, the condensation pipe frame comprises two supporting parts located on the two sides of the heating platform, a connecting part is connected between the two supporting parts, the connecting part is arranged above the heating platform in a suspended mode, and a plurality of mounting notches are formed in the edges of the two sides, not connected with the supporting parts, of the connecting part; the reflux condensers are provided with the reflux condensing pipes and the flasks, the reflux condensing pipes correspondingly penetrate through and are embedded in the mounting notches, the flasks are placed on the heating platform, the mounting notches are formed in the connecting part, so that the reflux condensers can be synchronously placed on the heating platform, the structure is simple, and the digestion efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of COD digestion equipment, in particular to a COD digestion device. Background Art

[0002] When performing chemical oxygen demand analysis of water quality, it is necessary to reflux the sample added with potassium dichromate on a hot plate for two hours at a slight boil. The digestion devices that currently comply with national standard methods used in laboratories include the traditional iron stand fixed with a conical flask connected to a reflux condenser, and an intelligent COD digestion device. However, due to the limitations of the iron stand, it can only install a single reflux condenser. Even if multiple iron stands are installed near the hot plate, the reflux condensers matched with each iron stand are placed on the hot plate. Since the iron stand structure occupies a large area, the entire hot plate can only heat a small amount of reflux condenser flasks simultaneously, resulting in a low digestion efficiency and inevitably causing too many iron stands to be occupied. Utility Model Content

[0003] The purpose of the utility model is to provide a COD digestion device to solve the problems existing in the above-mentioned prior art. By arranging multiple mounting notches on the connecting part, multiple reflux condensers can be placed synchronously on the heating platform. The structure is simple and the digestion efficiency can be effectively improved.

[0004] To achieve the above-mentioned purpose, the present invention provides the following solutions: The present invention provides a COD digestion device, comprising a heating platform, a condensation tube rack and a plurality of reflux condensers;

[0005] The condenser tube rack includes two supporting parts located on both sides of the heating platform, a connecting part is connected between the two supporting parts, the connecting part is suspended above the heating platform, and a plurality of mounting notches are provided on both side edges of the connecting part not connected to the supporting part;

[0006] The reflux condenser comprises a reflux condensing tube and a flask. Each of the reflux condensing tubes passes through and is embedded in each of the mounting notches. Each of the flasks is placed on the heating platform.

[0007] Preferably, the radial cross-section of the mounting notch is an arc-shaped structure.

[0008] Preferably, the reflux condenser tube is detachably connected to a tube clamp which is tightly sleeved on its outer peripheral wall, and the tube clamp abuts against a portion of the support portion located on the outer peripheral side of the installation notch.

[0009] Preferably, the connecting portion is in a strip-shaped plate structure, and both ends of the connecting portion along the length direction are respectively connected to the supporting portions, and the mounting notches are provided at both side edges of the connecting portion along the width direction.

[0010] Preferably, the connecting portion is overlapped on the top ends of the two supporting portions and is detachably connected to the supporting portions.

[0011] Preferably, the support portion includes a support plate and a base, the base is supported at the bottom end of the support plate, and the connecting portion is installed at the top end of the support plate.

[0012] Preferably, each of the reflux condensers is equipped with the same cooling water supply mechanism, and a water inlet pipe is connected between the cooling water supply mechanism and the cooling water inlet of the first-stage reflux condenser, the cooling water inlet of the next-stage reflux condenser is connected to the cooling water outlet of the previous-stage reflux condenser, and the cooling water outlet of the last-stage reflux condenser is connected to a water outlet pipe.

[0013] Preferably, the heating platform is an electric heating plate, and the heating surface of the electric heating plate and the bottom of the flask are both planar structures and fit together.

[0014] Compared with the prior art, the utility model has achieved the following technical effects:

[0015] By providing a mounting notch at the edge of the connecting portion, the notch can be passed through by the reflux condenser while remaining close to the wall of the reflux condenser, thereby facilitating the fixing of the reflux condenser. Furthermore, multiple reflux condensers can be connected via the connecting portion, allowing the heating platform to simultaneously heat the multiple reflux condensers, thereby enabling simultaneous digestion of the multiple reflux condensers, significantly saving analysis time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the connection of the reflux condensing tubes in one embodiment of the present utility model;

[0019] Among them, 1-connecting part, 2-installation notch, 3-reflux condenser, 4-flask, 5-heating platform, 6-support part, 7-base, 8-cooling water outlet, 9-cooling water inlet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The purpose of the utility model is to provide a COD digestion device to solve the problems existing in the above-mentioned prior art. By arranging multiple mounting notches on the connecting part, multiple reflux condensers can be placed synchronously on the heating platform. The structure is simple and the digestion efficiency can be effectively improved.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] like Figures 1 to 2As shown, this embodiment provides a COD digestion device, including a heating platform 5, a condensing tube rack and multiple reflux condensers. The preferred heating platform 5 adopts an electric heating plate or a water bath, etc.; the condensing tube rack includes two supporting parts 6 located on both sides of the heating platform 5, and a connecting part 1 is connected between the two supporting parts 6. The connecting part 1 is suspended above the heating platform 5, that is, it is supported on both sides of the heating platform 5 by the two supporting parts 6, and can support the connecting part 1 to be suspended above the heating platform 5. A plurality of mounting notches 2 are provided on the edges of the two sides of the connecting part 1 where the connecting part 1 is not connected to the supporting parts 6; the reflux condenser has a reflux condensing tube 3 and a flask 4, each reflux condensing tube 3 passes through and is embedded in each mounting notch 2, and each flask 4 is placed on the heating platform 5. By providing a mounting notch 2 at the edge of the connecting part 1, the mounting notch can be opened. 2 is an unclosed structure, so that the reflux condenser 3 has a cooling water inlet 9 and a cooling water outlet 8 at the position where the mounting notch 2 is not closed, so that the entire reflux condenser 3 can be plugged into the mounting notch 2. It should be noted that the reflux condenser 3 has a cooling water inlet 9 and a cooling water outlet 8 at the position where it protrudes from the tube wall of the reflux condenser 3. If the mounting notch 2 is a closed annular structure, it must be large enough to allow the reflux condenser 3 to pass through, which inevitably leads to increased difficulty in clamping the reflux condenser 3 in the mounting notch 2. Therefore, by opening the mounting notch 2 at the edge of the connecting portion 1, the mounting notch 2 can be used for the reflux condenser 3 to pass through, and can also be close to the tube wall of the reflux condenser 3 accordingly, thereby facilitating the fixation of the reflux condenser 3. Moreover, multiple reflux condensers are connected through the connecting part 1, so that the heating platform 5 can be used to synchronously complete the heating of multiple reflux condensers, thereby realizing the synchronous digestion of multiple reflux condensers, which greatly saves analysis time. After the digestion work is completed, the condenser tube rack can be removed as a whole and then cleaned and dried. After the condenser tube rack is removed, the daily use function of the heating platform 5 is not affected, which is environmentally friendly and energy-saving.

[0024] Furthermore, the condenser tube rack has a simple structure and occupies a small space on the outer peripheral side of the heating platform 5. By opening a plurality of mounting notches 2 on the connecting portion 1, as many reflux condenser tubes 3 as possible can be installed in each mounting notch 2, so that each flask 4 can be heated synchronously by utilizing the heating platform 5, thereby effectively improving the digestion efficiency.

[0025] In one embodiment, the radial cross-section of the mounting notch 2 is an arc-shaped structure, so that the inner circumferential wall of the mounting notch 2 adapts to the tube wall structure of the reflux condenser 3, thereby improving the tightness of the reflux condenser 3 inserted into the mounting notch 2.

[0026] In one embodiment, a pipe clamp is detachably connected to the reflux condenser tube 3 and is tightly attached to its outer wall. The pipe clamp abuts the portion of the support portion 6 located on the outer side of the mounting notch 2, thereby enabling the reflux condenser tube 3 to be installed in the mounting notch 2 of the connecting portion 1 and maintained in a vertical position. Preferably, the pipe clamp can be replaced with a cable tie, which is tied to the wall of the reflux condenser tube 3, located above the mounting notch 2, and abuts the top surface of the connecting portion 1 where the mounting notch 2 is located.

[0027] In one embodiment, the connecting portion 1 is in the form of a strip plate structure. Preferably, in order to reduce the production cost, discarded decoration wood boards can be used. The two ends of the connecting portion 1 along its length direction are respectively connected to the supporting portions 6, and the mounting notches 2 are opened at the two side edges of the connecting portion 1 along its width direction, so that the mounting notches 2 are distributed in sequence along the length direction of the connecting portion 1, so as to increase the number of mounting notches 2 as much as possible, thereby increasing the number of reflux condensers 3 connected to the connecting portion 1, and preferably the distance between two adjacent mounting notches 2 matches the width of the two reflux condensers to ensure that after the reflux condenser 3 is installed at each mounting notch 2, no collision occurs between the two adjacent reflux condensers 3 and the flask 4.

[0028] In one embodiment, the connecting portion 1 is overlapped on the top of the two supporting portions 6 and is detachably connected to the supporting portions 6, so that the connecting portion 1 of corresponding length can be replaced according to the length of different heating platforms 5, thereby ensuring the adaptability of the entire device. Preferably, a three-in-one connector is connected between the connecting portion 1 and the supporting portion 6 to achieve a detachable connection between the connecting portion 1 and the supporting portion 6. Furthermore, the supporting portion 6 includes a support plate and a base 7. Preferably, in order to reduce the production cost, the support plate and the base 7 can be made of discarded decoration wood boards, etc. The base 7 is supported on the bottom end of the support plate. Specifically, the base 7 is a plate-shaped structure and is placed flat on both sides of the heating platform 5 to ensure stable support for the support plate and the connecting portion 1. The connecting portion 1 is installed at the top position of the support plate. Specifically, the two ends of the connecting portion 1 are overlapped on the two supporting plates and then connected by a detachable connector, thereby ensuring stable support of the connecting portion 1 by the support plate.

[0029] In one embodiment, each reflux condenser 3 is equipped with the same cooling water supply mechanism, and a water inlet pipe is connected between the cooling water supply mechanism and the cooling water inlet 9 of the first-stage reflux condenser 3, the cooling water inlet 9 of the next-stage reflux condenser 3 is connected to the cooling water outlet 8 of the previous-stage reflux condenser 3, and the cooling water outlet 8 of the last-stage reflux condenser 3 is connected to a water outlet pipe, so that the same cooling water supply mechanism can be used to synchronously supply cooling water to multiple reflux condensers to ensure full utilization of cooling water and reduce losses.

[0030] Preferably, the heating platform 5 adopts an electric heating plate, the heating surface of the electric heating plate and the bottom of the flask 4 are both planar structures and fit together. By using the electric heating plate for heating, the heating work of the flask 4 is more convenient, and the electric heating plate and the flask 4 fit together surface to ensure the heating effect of the flask 4.

[0031] Adaptive changes based on actual needs are all within the protection scope of this utility model.

[0032] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0033] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A COD digestion device, characterized in that: It includes a heating platform, a condenser tube rack and multiple reflux condensers; The condenser tube rack includes two supporting parts located on both sides of the heating platform, a connecting part is connected between the two supporting parts, the connecting part is suspended above the heating platform, and a plurality of mounting notches are provided on both side edges of the connecting part not connected to the supporting part; The reflux condenser comprises a reflux condensing tube and a flask. Each of the reflux condensing tubes passes through and is embedded in each of the mounting notches. Each of the flasks is placed on the heating platform.

2. The COD digestion device according to claim 1, wherein The radial cross section of the installation notch is an arc-shaped structure.

3. The COD digestion device according to claim 1 or 2, characterized in that The reflux condenser tube is detachably connected to a tube clamp which is tightly sleeved on the outer peripheral wall thereof, and the tube clamp abuts against a portion of the support portion which is located on the outer peripheral side of the installation notch.

4. The COD digestion device according to claim 3, characterized in that The connecting portion is in a strip-shaped plate structure, and both ends of the connecting portion along the length direction are respectively connected to the supporting portions, and the mounting notches are arranged at both side edges of the connecting portion along the width direction.

5. The COD digestion device according to claim 4, characterized in that, The connecting portion is overlapped on the top ends of the two supporting portions and is detachably connected to the supporting portions.

6. The COD digestion device according to claim 5, characterized in that, The supporting portion includes a supporting plate and a base, the base is supported at the bottom end of the supporting plate, and the connecting portion is installed at the top end of the supporting plate.

7. The COD digestion device according to claim 6, characterized in that: Each of the reflux condensers is equipped with the same cooling water supply mechanism, and an inlet pipe is connected between the cooling water supply mechanism and the cooling water inlet of the first-stage reflux condenser. The cooling water inlet of the next-stage reflux condenser is connected to the cooling water outlet of the previous-stage reflux condenser, and the cooling water outlet of the last-stage reflux condenser is connected to a water outlet pipe.

8. The COD digestion device according to claim 7, characterized in that: The heating platform adopts an electric heating plate, and the heating surface of the electric heating plate and the bottom of the flask are both planar structures and fit together.

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