CN219391551U - COD on-line monitoring analyzer negative pressure air pressure transmission device - Google Patents
COD on-line monitoring analyzer negative pressure air pressure transmission device Download PDFInfo
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- CN219391551U CN219391551U CN202222840030.6U CN202222840030U CN219391551U CN 219391551 U CN219391551 U CN 219391551U CN 202222840030 U CN202222840030 U CN 202222840030U CN 219391551 U CN219391551 U CN 219391551U
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Abstract
The utility model discloses a negative pressure air pressure transmission device of a COD on-line monitoring analyzer, which relates to the technical field of COD on-line monitoring analyzers and comprises a digestion device, wherein the top of the digestion device is communicated with a pipeline; a condenser is arranged at one side of the digestion device, and a detection device is arranged at one side of the condenser away from the digestion device; the top parts of the digestion device, the condenser and the detection device are welded with negative pressure pipelines, and a valve I is arranged on the negative pressure pipeline at the top part of the digestion device; during the use, the water sample that will detect is sent into the sampling container through the pipeline, then opens the vacuum pump, then opens vacuum pump and valve one, and the vacuum pump can be through negative pressure pipeline with the interior air evacuation of digestion device for form the negative pressure in the digestion device, in the negative pressure state, the water sample in the sampling container can get into the digestion device through sampling pipeline one, and the digestion device can clear up the acidity of water sample, makes the water sample can not cause the destruction to each part of detection device.
Description
Technical Field
The utility model particularly relates to the technical field of COD on-line monitoring analyzers, in particular to a negative pressure air pressure transmission device of a COD on-line monitoring analyzer.
Background
Chemical oxygen demand (COD or CODcr) refers to the amount of oxidizing agent consumed when the reducing substances in water are oxidized and decomposed under the action of an externally added strong oxidizing agent under certain strict conditions, expressed in mg/L of oxygen. Chemical oxygen demand reflects the degree of pollution of water by reducing substances including organic substances, nitrite, ferrous salts, sulfide and the like, but the amount of inorganic reducing substances in water and wastewater is generally relatively small, and pollution by organic substances is common, so COD can be used as a comprehensive index of the relative content of organic substances.
The Chinese patent application No. CN1648659B discloses a negative pressure air pressure transmission device of a COD on-line monitoring analyzer, which comprises a sample injection container (mixing chamber), a digestion device, a condenser tube, a detection device, a liquid discharge chamber, a vacuum pump, three two-position three-way electromagnetic valves and corresponding pipelines which are connected, wherein the vacuum pump is used as a power device for transmission, and the three two-position three-way electromagnetic valves are used for switching control of air paths, so that an air pressure gradient is formed between the mixing chamber and the two containers of the digestion device, and liquid in the mixing chamber is transmitted into the digestion device. In this way, the interior of the digestion device is in a negative pressure state
Above-mentioned COD on-line monitoring analyzer negative pressure air pressure transmission device, when in actual use, the vacuum pump is limited to the negative pressure effect that each part formed, and when the negative pressure was less, the suction of digester, condenser and detection device to water sample was also insufficient, can lead to water sample unable normal flow to lead to water sample detection flow unable normal clear.
Disclosure of Invention
The utility model aims to provide a negative pressure air pressure transmission device of a COD on-line monitoring analyzer, which is used for solving the problems that the water sample cannot normally flow and the water sample detection flow cannot normally run due to the fact that the negative pressure effect formed by a vacuum pump on each component is limited and the suction force of a digestion device, a condenser and a detection device on the water sample is insufficient when the negative pressure is small.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the negative pressure air pressure transmission device of the COD on-line monitoring analyzer comprises a digestion device, wherein the top of the digestion device is communicated with a pipeline; a condenser is arranged at one side of the digestion device, and a detection device is arranged at one side of the condenser away from the digestion device;
the top parts of the digestion device, the condenser and the detection device are welded with negative pressure pipelines, and a valve I is arranged on the negative pressure pipeline at the top part of the digestion device; a valve III is arranged on a negative pressure pipeline welded at the top of the condenser; and a valve II is arranged on the negative pressure pipeline welded at the top of the detection device.
As a further technical scheme of the utility model, a first sample injection pipeline is arranged on one side of the digestion device, a sample injection container is fixedly arranged at the tail end of the first sample injection pipeline, and the sample injection container is communicated with the digestion device through the first sample injection pipeline.
As a further technical scheme of the utility model, the digestion device is communicated with the condenser through a second sample injection pipeline; the condenser is communicated with the detection device through a pipeline.
As a further technical scheme of the utility model, the first sample injection pipeline and the second sample injection pipeline extend to the inner side of the digestion device; the length of the first sample injection pipeline positioned at the inner side of the digestion device is shorter than that of the second sample injection pipeline positioned at the inner side of the digestion device.
As a further technical scheme of the utility model, the negative pressure pipeline is fixedly connected with a vacuum pump.
As a further technical scheme of the utility model, the horizontal height of the sample injection container is lower than that of the digestion device.
Compared with the prior art, the utility model has the beneficial effects that:
1. when the water body sample detection device is used, a water body sample to be detected is fed into a sample injection container through a pipeline, then a vacuum pump is opened, the vacuum pump and a valve I are opened, the vacuum pump can suck air in a digestion device through a negative pressure pipeline, so that negative pressure is formed in the digestion device, the water body sample in the sample injection container enters the digestion device through the sample injection pipeline I in a negative pressure state, the digestion device can digest the acidity of the water body sample, and the water body sample cannot damage all parts of the detection device;
2. according to the utility model, the valve III is closed and opened, under the negative pressure state, the water body sample of the digestion device enters the condenser through the second sampling pipeline, the condenser can condense the water body sample heated in the digestion device, the water body sample can be cooled to normal temperature and then enters the detection device, so that the detection device is prevented from being damaged by high temperature, the detection result is ensured not to be influenced by temperature, and the accuracy of the detection result is ensured;
3. according to the utility model, the first valve, the second valve and the third valve respectively control the communication of the digestion device, the condenser and the detection device with the negative pressure pipeline, so that the interior of the digestion device, the condenser and the detection device can be independently in a vacuum state, and the normal operation of a water sample detection flow is facilitated.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a top view of fig. 1 in accordance with the present utility model.
Fig. 3 is a schematic view of the internal structure of the present utility model.
In the figure: the device comprises a 1-sample injection container, a 2-sample injection pipeline I, a 3-digestion device, a 4-condenser, a 5-detection device, a 6-valve I, a 7-valve II, an 8-valve III, a 9-vacuum pump, a 10-sample injection pipeline II and an 11-negative pressure pipeline.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, in an embodiment of the present utility model, a negative pressure air pressure transmission device of an online monitoring and analyzing device for COD includes a condenser 4 disposed at one side of a digestion device 3, and a detection device 5 disposed at one side of the condenser 4 away from the digestion device 3;
the two rotating shafts 6 are arranged, and the two rotating shafts 6 are provided with swinging rods 7 in a matched manner; the top of the swing rod 7 is movably connected with a mounting plate 8 through a convex shaft; the mounting plate 8 is embedded with a plurality of material sucking nozzles 9, and the top of each material sucking nozzle 9 is connected with a negative pressure pipe 10; the negative pressure pipe 10 is connected with a filter 15.
Through adopting above-mentioned technical scheme, during the use, the water sample that will detect is sent into advance sample vessel 1 through the pipeline, then opens vacuum pump 9 and valve one 6, vacuum pump 9 can take out the air in the digestion device 3 through negative pressure pipeline 11 for form the negative pressure in the digestion device 3, under the negative pressure state, the water sample in advance sample vessel 1 can get into digestion device 3 through advance sample pipeline one 2, digestion device 3 can digest the acidity of water sample, make the water sample can not lead to the fact the destruction to each part of detection device.
In this embodiment, the top parts of the digestion device 3, the condenser 4 and the detection device 5 are welded with a negative pressure pipeline 11, and a valve I6 is arranged on the negative pressure pipeline 11 at the top part of the digestion device 3; a valve III 8 is arranged on a negative pressure pipeline 11 welded at the top of the condenser 4; the negative pressure pipeline 11 welded at the top of the detection device 5 is provided with a valve II 7.
By adopting the technical scheme, the valve I6 is closed, the valve III 8 is opened, under the negative pressure state, the water body sample of the digestion device 3 enters the condenser 4 through the sample injection pipeline II 10, the condenser 4 can condense the water body sample heated in the digestion device 3, the water body sample can be cooled to normal temperature and then enters the detection device 5, the detection device 5 can be prevented from being damaged by high temperature, the detection result can be ensured not to be influenced by temperature, and the accuracy of the detection result is ensured;
as further optimization, the first valve 6, the second valve 7 and the third valve 8 respectively control the digestion device 3, the condenser 4 and the detection device 5 to be communicated with the negative pressure pipeline 11, so that the interior of the digestion device 3, the condenser 4 and the detection device 5 can be independently in a vacuum state, and the normal operation of the water sample detection flow is facilitated.
The working principle of the utility model is as follows: when the water body sample to be detected is fed into the sample injection container 1 through a pipeline, then the vacuum pump 9 is opened, then the vacuum pump 9 and the valve I6 are opened, the vacuum pump 9 pumps air in the digestion device 3 through the negative pressure pipeline 11, so that negative pressure is formed in the digestion device 3, in a negative pressure state, the water body sample in the sample injection container 1 enters the digestion device 3 through the sample injection pipeline I2, the digestion device 3 can digest the acidity of the water body sample, and the water body sample cannot damage all parts of the detection device;
as further optimization, the valve I6 is closed, the valve III 8 is opened, under the negative pressure state, the water body sample of the digestion device 3 enters the condenser 4 through the sample injection pipeline II 10, the condenser 4 can condense the water body sample heated in the digestion device 3, the water body sample can be cooled to normal temperature and then enters the detection device 5, the detection device 5 can be prevented from being damaged by high temperature, the detection result can be prevented from being influenced by temperature, and the accuracy of the detection result is ensured;
the first valve 6, the second valve 7 and the third valve 8 respectively control the digestion device 3, the condenser 4 and the detection device 5 to be communicated with the negative pressure pipeline 11, so that the interior of the digestion device 3, the condenser 4 and the detection device 5 can be in a vacuum state independently, and the normal operation of the water sample detection flow is facilitated.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. COD on-line monitoring analyzer negative pressure air pressure transmission device, its characterized in that: the device comprises a digestion device (3), wherein the top of the digestion device (3) is communicated with a pipeline; a condenser (4) is arranged at one side of the digestion device (3), and a detection device (5) is arranged at one side of the condenser (4) away from the digestion device (3);
the top parts of the digestion device (3), the condenser (4) and the detection device (5) are welded with a negative pressure pipeline (11), and a valve I (6) is arranged on the negative pressure pipeline (11) at the top part of the digestion device (3); a valve III (8) is arranged on a negative pressure pipeline (11) welded at the top of the condenser (4); the negative pressure pipeline (11) welded at the top of the detection device (5) is provided with a valve II (7).
2. The negative pressure air pressure transmission device of the COD on-line monitoring analyzer according to claim 1, wherein the negative pressure air pressure transmission device is characterized in that: one side of the digestion device (3) is provided with a first sample injection pipeline (2), the tail end of the first sample injection pipeline (2) is fixedly provided with a sample injection container (1), and the sample injection container (1) is communicated with the digestion device (3) through the first sample injection pipeline (2).
3. The negative pressure air pressure transmission device of the COD on-line monitoring analyzer according to claim 2, wherein the negative pressure air pressure transmission device is characterized in that: the digestion device (3) is communicated with the condenser (4) through a second sampling pipeline (10); the condenser (4) is communicated with the detection device (5) through a pipeline.
4. The negative pressure air pressure transmission device of the COD on-line monitoring analyzer according to claim 3, wherein the negative pressure air pressure transmission device is characterized in that: the first sample injection pipeline (2) and the second sample injection pipeline (10) extend to the inner side of the digestion device (3); the length of the first sample injection pipeline (2) positioned at the inner side of the digestion device (3) is shorter than that of the second sample injection pipeline (10) positioned at the inner side of the digestion device (3).
5. The negative pressure air pressure transmission device of the COD on-line monitoring analyzer according to claim 4, wherein the negative pressure air pressure transmission device is characterized in that: the negative pressure pipeline (11) is fixedly connected with a vacuum pump (9).
6. The negative pressure air pressure transmission device of the COD on-line monitoring analyzer according to claim 4, wherein the negative pressure air pressure transmission device is characterized in that: the horizontal height of the sample injection container (1) is lower than that of the digestion device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222840030.6U CN219391551U (en) | 2022-10-27 | 2022-10-27 | COD on-line monitoring analyzer negative pressure air pressure transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222840030.6U CN219391551U (en) | 2022-10-27 | 2022-10-27 | COD on-line monitoring analyzer negative pressure air pressure transmission device |
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| Publication Number | Publication Date |
|---|---|
| CN219391551U true CN219391551U (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222840030.6U Active CN219391551U (en) | 2022-10-27 | 2022-10-27 | COD on-line monitoring analyzer negative pressure air pressure transmission device |
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| CN (1) | CN219391551U (en) |
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- 2022-10-27 CN CN202222840030.6U patent/CN219391551U/en active Active
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