CN211785447U - Oxygen content detection device in powder container - Google Patents
Oxygen content detection device in powder container Download PDFInfo
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- CN211785447U CN211785447U CN202020406420.0U CN202020406420U CN211785447U CN 211785447 U CN211785447 U CN 211785447U CN 202020406420 U CN202020406420 U CN 202020406420U CN 211785447 U CN211785447 U CN 211785447U
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- oxygen content
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- nipple
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Abstract
The utility model discloses an oxygen content detection device in a powder container, which comprises a storage bin, wherein one side above the storage bin is connected with a nitrogen pipeline, the nitrogen pipeline is provided with a nitrogen valve, the other side above the storage bin is fixed with a nipple, an oxygen content detector is inserted into the nipple, the bottom of the oxygen content detector is provided with a probe, and the probe is arranged at the communication part of the storage bin and the nipple; still be connected with the pipeline that sweeps on the feed bin, the one end and the inside intercommunication of feed bin of the pipeline that sweeps, the other end and the nipple intercommunication of sweeping the pipeline have set gradually pneumatic valve, powder filter, pneumatic pump, check valve along the gas circuit direction on the pipeline that sweeps, and nitrogen gas valve, pneumatic pump, oxygen content detector are connected through cable and PLC electricity respectively. The utility model discloses an aspect has realized the on-line measuring to oxygen content in the powder container, and on the other hand can regularly sweep the powder of adhesion on the probe, has both avoided dangerous emergence, has improved the detection rate of accuracy again, need not the shutdown maintenance simultaneously, has improved production efficiency.
Description
Technical Field
The utility model relates to an oxygen content detection device in powder container.
Background
The powder raw materials or finished products are extremely common, and the powder has certain dangerousness in the production and transportation process, so that the ignition and explosion phenomena are easy to generate. In order to avoid this phenomenon, the powder container is often filled with nitrogen during the powder production and storage process, and oxygen is isolated to avoid danger, so that the oxygen content in the container needs to be detected. The oxygen content detector used in the powder container at the present stage mainly depends on a bottom probe for measurement, and the oxygen content detector cannot accurately detect the actual oxygen content in the powder container because the probe is easy to block by powder. Chinese patent CN206601377U discloses a silo fine powder oxygen content detection device, regularly sweeps measurement probe through setting up nitrogen gas sweep device, does not let the dust attached on measurement probe, but directly uses nitrogen gas to sweep and can cause the oxygen content detection inaccurate equally to make and brought danger in actual production, therefore wait for further improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oxygen content testing device in powder container can sweep the powder of adhesion on measuring probe totally, improves the degree of accuracy that detects.
In order to achieve the above object, the utility model adopts the following technical scheme: a device for detecting oxygen content in a powder container comprises a storage bin, wherein a nitrogen pipeline is connected to one side above the storage bin, a nitrogen valve is arranged on the nitrogen pipeline, a nipple is fixed to the other side above the storage bin, an oxygen content detector is inserted into the nipple, a probe is arranged at the bottom of the oxygen content detector, and the probe is arranged at a communication position of the storage bin and the nipple;
still be connected with on the feed bin and sweep the pipeline, sweep the one end of pipeline with the inside intercommunication of feed bin, sweep the other end of pipeline with the nipple intercommunication, sweep and have set gradually pneumatic valve, powder filter, pneumatic pump, check valve along the gas circuit direction on the pipeline, nitrogen gas valve, pneumatic pump, oxygen content detector are connected with the PLC electricity through the cable respectively.
Preferably, the probe is located close to the junction of the purge conduit and the nipple.
Preferably, the oxygen content detector is connected with the upper end of the nipple through a flange.
Compared with the prior art, the utility model discloses an aspect has realized the on-line measuring to oxygen content in the powder container, and on the other hand uses the gas in self container to carry out automatic periodic purging to the detector probe to sweep the powder of adhesion on the probe totally, both avoided dangerous emergence, improved the rate of accuracy that detects again, need not the shutdown maintenance simultaneously, the production of being convenient for has improved production efficiency, the cost is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, 1 stock bin, 2 purge pipelines, 3 pneumatic valves, 4 powder filters, 5 pneumatic pumps, 6 check valves, 7 oxygen content detectors, 701 probes, 8 short connecting pipes, 9 nitrogen pipelines, 10 nitrogen valves and 11 PLC.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model provides an oxygen content detection device in powder container, including feed bin 1, 1 top one side of feed bin is connected with nitrogen gas pipeline 9, be equipped with nitrogen gas valve 10 on the nitrogen gas pipeline 9, through the switching of control nitrogen gas valve 10, fill the nitrogen protection to 1 inside of feed bin.
A short connecting pipe 8 is fixed on the other side above the stock bin 1, an oxygen content detector 7 is inserted into the short connecting pipe 8, a probe 701 is arranged at the bottom of the oxygen content detector 7, and the probe 701 is arranged at the communication position of the stock bin 1 and the short connecting pipe 8.
Still be connected with on the feed bin 1 and sweep pipeline 2, the one end that sweeps pipeline 2 with 1 inside intercommunication in feed bin, the other end that sweeps pipeline 2 with nipple 8 intercommunication, sweep and have set gradually pneumatic valve 3, powder filter 4, pneumatic pump 5, check valve 6 along the gas circuit direction on the pipeline 2, nitrogen gas valve 10, pneumatic valve 3, pneumatic pump 5, oxygen content detector 7 are connected through cable and PLC electricity respectively.
In order to achieve a good purging effect, the probe 701 is located close to the connection between the purge line 2 and the nipple 8.
In order to facilitate the assembly and disassembly of the device, the oxygen content detector 7 is connected with the upper end of the short connecting pipe 8 through a flange.
The utility model discloses a theory of operation: in an initial state, the nitrogen valve 10 and the pneumatic valve 3 are in a closed state, the pneumatic pump 5 is in a stopped state, when the oxygen content detector 7 detects that the oxygen content value in the storage bin 1 is higher than a set value, a detection signal is fed back to the PLC11, the PLC11 controls the opening of the nitrogen valve 10, nitrogen is conveyed into the storage bin 1 through the nitrogen pipeline 9, and when the oxygen content detector 7 detects that the oxygen content value in the storage bin 1 reaches the set value, the PLC11 controls the closing of the nitrogen valve 10 to stop the conveying of the nitrogen; meanwhile, the PLC11 program is used for setting, the pneumatic valve 3 is automatically opened firstly within a specified time, then the pneumatic pump 5 is started, the gas in the storage bin 1 is sent to the short connecting pipe 8 through the pneumatic pump 5 sequentially through the purging pipeline 2 communicated with the storage bin 1, the powder filter 4 and the check valve 6, and the probe 701 at the bottom of the oxygen content detector 7 is purged. PLC sets up the time of sweeping, and specific time of sweeping can be decided according to on-the-spot demand actual conditions, and the adjustable range of time of sweeping: 1s to 60 s.
The utility model discloses automatic regularly sweep to measuring probe, not let the dust attached on the probe to make oxygen content detector probe be difficult to the jam, real-time accurate demonstration oxygen content numerical value, simultaneously again because used sweep gas is the actual gas of storehouse internal self, thereby avoided oxygen content detector to receive the influence of other gases, improved the degree of accuracy that detects.
Claims (3)
1. A device for detecting the oxygen content in a powder container comprises a storage bin (1), wherein a nitrogen pipeline (9) is connected with one side above the storage bin (1), a nitrogen valve (10) is arranged on the nitrogen pipeline (9), and the device is characterized in that,
a short connecting pipe (8) is fixed on the other side above the stock bin (1), an oxygen content detector (7) is inserted into the short connecting pipe (8), a probe (701) is arranged at the bottom of the oxygen content detector (7), and the probe (701) is arranged at the communication position of the stock bin (1) and the short connecting pipe (8);
still be connected with on feed bin (1) and sweep pipeline (2), the one end of sweeping pipeline (2) with feed bin (1) inside intercommunication, the other end of sweeping pipeline (2) with nipple (8) intercommunication, it has set gradually pneumatic valve (3), powder filter (4), pneumatic pump (5), check valve (6) to sweep along the gas circuit direction on pipeline (2), nitrogen gas valve (10), pneumatic valve (3), pneumatic pump (5), oxygen content detector (7) are connected through cable and PLC (11) electricity respectively.
2. The apparatus for detecting the oxygen content in a powder container according to claim 1, wherein the probe (701) is located close to the junction between the purge line (2) and the nipple (8).
3. The apparatus for detecting the oxygen content in a powder container according to claim 1 or 2, wherein the oxygen content detector (7) is connected to the upper end of the nipple (8) by a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020406420.0U CN211785447U (en) | 2020-03-26 | 2020-03-26 | Oxygen content detection device in powder container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020406420.0U CN211785447U (en) | 2020-03-26 | 2020-03-26 | Oxygen content detection device in powder container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211785447U true CN211785447U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020406420.0U Active CN211785447U (en) | 2020-03-26 | 2020-03-26 | Oxygen content detection device in powder container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211785447U (en) |
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2020
- 2020-03-26 CN CN202020406420.0U patent/CN211785447U/en active Active
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