CN218727028U - Real-time gas monitoring system suitable for high-temperature and limited space - Google Patents
Real-time gas monitoring system suitable for high-temperature and limited space Download PDFInfo
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- CN218727028U CN218727028U CN202222359267.2U CN202222359267U CN218727028U CN 218727028 U CN218727028 U CN 218727028U CN 202222359267 U CN202222359267 U CN 202222359267U CN 218727028 U CN218727028 U CN 218727028U
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Abstract
The utility model discloses a real-time monitoring system for gas in a high-temperature limited space, which comprises a sampling electric pump, wherein the inlet end of the sampling electric pump is connected with a sampling pipe; the inlet end of the sampling electric pump is provided with two pipelines which are respectively a detection branch and an adjusting branch; the gas detector is arranged on the detection branch, and the flow regulating valve is arranged on the regulating branch. The arrangement of the sampling pipe and the detection branch in the system ensures that the temperature actually reaching the gas detector completely meets the normal working temperature environment of the gas detector.
Description
Technical Field
The utility model belongs to the technical field of safety monitoring, especially, be applicable to gaseous real-time monitoring system in high temperature, finite space
Background
According to item 6.2 of 'safety operating Specification for limited space operation' DB 32/T3848-2020, the concentration of gas in a limited space is monitored during the limited space operation. At present, the main practice of enterprises is to install a fixed detector or use a portable detector in a limited space region, but the working temperature of the gas detector existing in the market is generally-40 ℃ to +70 ℃, the working temperature of the detector sensor is-40 ℃ to +55 ℃, the detection principle is an electrochemical principle, the sensor detects the concentration of gas through the reaction of electrolyte, and the electrolyte contains a plurality of chemical substances, so that the service life of the sensor is greatly influenced under an ultrahigh-temperature environment (over 70 ℃), the failure rate is high, and the measurement accuracy is influenced.
The chain plate machine of the lime kiln is arranged at the lower part of a lime cooler and used for conveying cooled lime finished products, limestone raw materials are roasted at high temperature, the temperature of the lime finished products after the limestone raw materials pass through the cooler and reach the chain plate machine is close to 200 ℃, the chain plate machine is arranged in an underground limited space, the ambient temperature of the chain plate machine is over 80 ℃ at most, and the service temperature of a mainstream gas detector in the market cannot meet the use requirement in the high-temperature environment.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the prior art, the application provides a real-time gas monitoring system suitable for high-temperature and limited space, and the gas content concentration in the high-temperature limited space is monitored in real time in a sampling mode.
The utility model discloses the technical scheme who adopts as follows:
a real-time monitoring system for gases in a high-temperature, confined space, comprising:
the inlet end of the sampling electric pump is connected with a sampling pipe; the inlet end of the sampling electric pump is provided with two pipelines which are respectively a detection branch and an adjusting branch; the gas detector is arranged on the detection branch, and the flow regulating valve is arranged on the regulating branch.
Further, the sampling tube is a copper tube;
further, a filter is arranged between the sampling pipe and the inlet of the sampling electric pump;
further, a flow meter is arranged on the detection branch;
further, the gas detector selects the gas type to be monitored;
further, the sampling end of the sampling tube extends to the monitoring area;
further, sampling charge pump, detection branch road and detect the gas detector on the branch road, adjust the branch road and adjust branch road flow control valve and all install in the sampling box, the sampling end of sampling pipe extends to the sampling box outside, and the exit end that detects the branch road, adjusts the branch road extends to the sampling box outside.
The utility model has the advantages that:
1. the system analyzes and monitors the gas content in the high-temperature severe limited space by sampling and detecting the gas in the severe environment, and can stably detect the gas content in real time for a long time.
2. Through filtering the dust impurity in the sample gas, promote the purity of sampled gas, carry out more effective analysis to gaseous composition to can effectively promote the effective life of detector.
Drawings
FIG. 1 is a schematic diagram of the structure of a real-time oxygen content monitoring system according to the present application;
FIG. 2 is a schematic diagram of the structure of the system for monitoring oxygen content in real time according to the present application;
in the figure, the device comprises a sampling pipe 1, a filter 2, a sampling electric pump 3, a flow meter 4, a gas detector 5, a gas detector 6, a detection branch 7 and a sampling box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
A real-time monitoring system for gases in a high-temperature, confined space, comprising:
the sampling box 7 is provided with a sampling box,
the sampling electric pump 3 and the gas detector 5 are arranged in the sampling box 7; specifically, the inlet end of the sampling electric pump 3 is connected with the sampling pipe 1, and the sampling end of the sampling pipe 1 extends to the outside of the sampling box 7 and is used for collecting gas in a monitoring area; the outlet end of the sampling electric pump 3 is provided with two pipelines, wherein one pipeline is a detection branch 6, and the other pipeline is an adjusting branch. A gas detector 5 is arranged on the detection branch 6, and the outlet end of the detection branch 6 is arranged outside the sampling box 7; the adjusting branch is provided with a flow adjusting valve, and the outlet end of the adjusting branch is arranged outside the sampling box 7.
In this embodiment, the sampling tube 1 is a copper tube with a diameter of 8mm.
In this embodiment, a filter 2 is installed between the sampling pipe 1 and the inlet of the sampling electric pump 3, and the filter 2 is used to filter particles such as dust and the like from the sucked gas.
In the present embodiment, the flow meter 4 is provided in the detecting branch 6, and the flow rate of the gas in the detecting branch 6 is detected by the flow meter 4.
In this embodiment, the gas detector 5 may be selected according to the kind of gas to be actually monitored, such as oxygen, carbon monoxide, or hydrogen sulfide.
In this embodiment, the real-time monitoring of the oxygen content in the pit (limited space) of the lime chain mat machine is taken as an example for explanation; firstly, extending a sampling end of a sampling pipe 1 into a pit of a lime chain plate machine, and enabling a gas sample to pass through the sampling pipe 1, a filter 2 and a sampling electric pump 3; the gas flow on the detection branch 6 is adjusted through a flow adjusting valve on the adjusting branch; allowing a portion of the gas sample to enter detection branch 6; the gas entering the detection branch 6 passes through the flowmeter 4 and the oxygen detector to realize the monitoring of the oxygen content in the pit of the lime chain plate machine.
Due to the arrangement of the sampling pipe 1 and the detection branch 6 in the system, the temperature actually reaching the oxygen detector completely meets the normal working temperature environment of the gas detector. And after the sampled gas is filtered by the filter, lime dust contained in the gas is filtered, so that the service life of the oxygen detector can be effectively prolonged.
The sample gas passes through a fine filter to remove lime dust in the sample gas, the flow is controlled through a regulating valve, the sample gas required by people passes through an oxygen detector, and the sample gas is discharged to a safe and open area on the spot after the oxygen content is detected. The specific flow is shown in figures 1 and 2.
The above embodiments are only used for illustrating the design ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all the equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.
Claims (7)
1. A real-time monitoring system for gas in a high-temperature limited space is characterized by comprising:
the inlet end of the sampling electric pump (3) is connected with the sampling pipe (1); the inlet end of the sampling electric pump (3) is provided with two pipelines which are a detection branch (6) and an adjusting branch respectively; the gas detector (5) is arranged on the detection branch (6), and the flow regulating valve is arranged on the regulating branch.
2. The system for monitoring the gas in the high-temperature and limited space in real time is characterized in that the sampling tube (1) is a copper tube.
3. A system for real-time monitoring of gases in a high-temperature, confined space, according to claim 2, characterized in that a filter (2) is provided between the sampling tube (1) and the inlet of the sampling electric pump (3).
4. A system for real-time monitoring of gases in a high-temperature, confined space, according to claim 1, characterized in that a flow meter (4) is arranged in the detection branch (6).
5. A system for real-time monitoring of gases in a high temperature, confined space according to claim 1 wherein the gas detector (5) is selected according to the type of gas to be monitored.
6. A real-time monitoring system for gases in high-temperature, confined spaces according to claim 1, 2 or 3, characterized in that the sampling end of the sampling tube (1) extends to the monitoring area.
7. The system for monitoring the gas in the high-temperature and limited space in real time as claimed in claim 1, wherein the sampling electric pump (3), the detection branch (6) and the gas detector (5) on the detection branch (6), the regulation branch and the regulation branch flow regulating valve are all installed in the sampling box (7), the sampling end of the sampling pipe (1) extends to the outside of the sampling box (7), and the outlet ends of the detection branch (6) and the regulation branch extend to the outside of the sampling box (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222359267.2U CN218727028U (en) | 2022-09-06 | 2022-09-06 | Real-time gas monitoring system suitable for high-temperature and limited space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222359267.2U CN218727028U (en) | 2022-09-06 | 2022-09-06 | Real-time gas monitoring system suitable for high-temperature and limited space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218727028U true CN218727028U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222359267.2U Active CN218727028U (en) | 2022-09-06 | 2022-09-06 | Real-time gas monitoring system suitable for high-temperature and limited space |
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| CN (1) | CN218727028U (en) |
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2022
- 2022-09-06 CN CN202222359267.2U patent/CN218727028U/en active Active
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