A petrochemical safety detection device

Abstract

The utility model relates to a kind of petroleum chemical industry safety detection device, belong to petroleum chemical industry safety detection device technical field.The petroleum chemical industry safety detection device, comprising: support column, the top of the support column is provided with gas detector;Multi-direction detection mechanism, for the multi-direction gas detection multi-direction detection mechanism is set to the outside of gas detector;Wherein, the multi-direction detection mechanism includes the fairing set to the outside of gas detector;Detection component can guide and collect around the device circumferential gas, so that different direction gas is concentrated into gas detector after being collected by fairing and is detected, to realize the multi-direction detection function of single detector, improve the accuracy and response speed of detection result.Adjustment component drives fairing to lift along support column, can flexibly adjust detection position according to working condition, adapt to the detection needs of different areas or leakage source.

Description

Technical Field

[0001] This utility model relates to the technical field of petrochemical safety detection devices, and in particular to a petrochemical safety detection device. Background Technology Petrochemicals are an important part of the chemical industry and play a vital role in the development of the national economy. They are one of my country's pillar industries. The petrochemical industry contains many toxic gases. If operators inhale these toxic gases, it can lead to serious consequences. Therefore, a safety detection alarm device is needed. It can monitor and detect various parameters to ensure the safe operation of equipment and processes and prevent accidents and disasters.

[0002] As shown in the reference case "A Petrochemical Safety Detection Device" (Announcement No. CN222634257U), the petrochemical safety detection device uses a servo motor to drive a threaded rod to rotate, which in turn drives the mounting plate to rise and fall via a threaded sleeve. This, in turn, drives the mounting frame to rise and fall via a first connecting rod, thereby controlling the height of the detection housing. This allows the device to detect toxic gases at different heights, enhancing the detection effect of the alarm. Furthermore, the detection housings set around the device can further improve its detection accuracy.

[0003] However, existing petrochemical safety monitoring devices typically require the installation of multiple independent detection instruments or alarm units on-site to detect the surrounding gas. This structure not only leads to complex equipment layout and difficult maintenance, but also significantly increases installation costs and energy consumption due to the simultaneous operation of multiple detectors, resulting in cumbersome signal cables and affecting the overall system stability and reliability. Utility Model Content

[0004] Therefore, it is necessary to provide a petrochemical safety detection device to address the problems that existing petrochemical safety detection devices typically require the installation of multiple independent detectors or alarm units to achieve circumferential gas detection. These devices are complex in structure, inconvenient to maintain, and the simultaneous operation of multiple devices increases costs and energy consumption, leading to complicated system wiring and decreased stability.

[0005] A petrochemical safety detection device includes: a support column, on the top of which a gas detector is mounted; and a multi-directional detection mechanism for detecting gases in multiple directions, the multi-directional detection mechanism being disposed outside the gas detector; wherein the multi-directional detection mechanism includes a flow guide shroud disposed outside the gas detector, a detection component being disposed inside the flow guide shroud, and an adjustment component being disposed outside the support column.

[0006] The detection assembly includes a support base fixedly installed at the top of a support column, a motor fixedly installed at the top of the support base, the output end of the motor being fixedly connected to a gas detector, and multiple air inlet pipes fixedly installed on the surface of the flow guide.

[0007] The multiple air intake pipes are arranged in a ring shape, and all of the multiple air intake pipes are located at the bottom of the detection end of the gas detector.

[0008] A flow guide frame is fixedly installed inside the flow guide shroud. The flow guide frame is located outside the detection end of the gas detector and is shaped like a funnel.

[0009] An air pump is fixedly installed on the inner top wall of the air guide, and an air outlet pipe is fixedly installed on the other side of the air pump, with the other end of the air outlet pipe extending out of the air guide.

[0010] The surface of the air outlet pipe has two openings, and a filter element is fixedly installed inside the air outlet pipe. The flow guide is slidably installed on the top of the support base, and a sealing ring is fixedly installed on the inner wall of the flow guide, and the sealing ring is sealed and clamped to the support base.

[0011] The adjustment assembly includes a sealing tube disposed on the outside of the support column, a high-pressure pump fixedly installed on the inner wall of the sealing tube, and one end of the support column extending into the interior of the sealing tube and slidably connected to the sealing tube.

[0012] The high-pressure pump is located at the bottom of the support column, and a connecting pipe is fixedly installed on one side of the high-pressure pump. The other end of the connecting pipe extends to the outside of the sealing pipe. Beneficial effects

[0013] 1. During use, the detection component guides and collects gas around the device, allowing gases from different directions to converge and enter the gas detector after passing through the flow guide hood, thus enabling multi-directional detection by a single detector. This centralized flow guidance detection method ensures uniform gas flow rate and stable concentration, improving the accuracy and response speed of the detection results. The adjustment component drives the flow guide hood to rise and fall along the support column, allowing for flexible adjustment of the detection position according to operating conditions to adapt to the detection needs of different areas or leak sources. 2. The high-pressure pump is used to provide controllable hydraulic or pneumatic driving force to the inside of the sealing tube. When the high-pressure pump is started, it can drive the support column to rise and fall smoothly inside the sealing tube by changing the pressure state inside the sealing tube. This allows the guide hood and gas detector to be precisely adjusted in the vertical direction, making it easy to adjust the gas sampling position according to different detection areas or device heights. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the multi-directional detection mechanism of this utility model; Figure 3 This is a schematic diagram of the internal structure of the air guide cover of this utility model; Figure 4 This is a schematic diagram of the flow guide structure of this utility model; Figure 5 This is a schematic diagram of the adjustment component structure of this utility model.

[0016] Figure label: 100. Support column; 200. Gas detector; 300. Multi-directional detection mechanism; 310. Flow guide; 320. Detection component; 321. Support base; 322. Motor; 323. Inlet pipe; 324. Flow guide frame; 325. Air pump; 326. Outlet pipe; 327. Filter element; 328. Sealing ring; 330. Adjustment component; 331. Sealing tube; 332. High-pressure pump; 333. Connecting pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined Figures 1-5 This invention describes a petrochemical safety detection device.

[0019] In one embodiment, a petrochemical safety detection device includes: a support column 100, with a gas detector 200 mounted on top of the support column 100; and a multi-directional detection mechanism 300, which is disposed outside the gas detector 200 for detecting gases in multiple directions. The multi-directional detection mechanism 300 includes a flow guide shroud 310 disposed outside the gas detector 200, a detection component 320 disposed inside the flow guide shroud 310, and an adjustment component 330 disposed outside the support column 100.

[0020] In this embodiment, during use, the detection component 320 can guide and collect the circumferential gas around the device, so that the gas from different directions is collected and transported to the same gas detector 200 for centralized detection under the guidance of the flow guide 310. This enables a single detector to detect gas from multiple directions. Through this centralized flow guidance detection method, the gas flow rate is more uniform and the detection concentration is stable, which can effectively improve the accuracy and response speed of the detection results. The adjustment component 330 is used to drive the flow guide 310 to adjust the height along the support column 100. The detection position can be flexibly adjusted according to changes in the on-site working conditions to adapt to the detection needs of different equipment areas, pipeline layers or leakage sources. It should be noted that existing petrochemical safety detection devices typically include a support column 100, a detector body, an explosion-proof housing, a sampling port, and an alarm module. The detection component 320 is used to form a circumferential flow guide and centralized sampling channel outside the detector. Through structural guidance, the surrounding gas is introduced into the detector to achieve centralized detection of gas from multiple directions. The adjustment component 330 is used to drive the flow guide shroud 310 to adjust its height or angle along the support column 100 to adapt to different detection positions and working conditions. Both components are installed independently from the detector body during operation, do not participate in internal signal processing, and will not interfere with the explosion-proof performance, gas identification accuracy, and alarm response of the gas detector 200. They are compatible with existing detection components. It should be noted that the outer shell of the gas detector 200 is made of explosion-proof alloy or corrosion-resistant composite material, and all internal electrical connection parts are equipped with a sealed isolation structure to ensure its explosion-proof safety performance in high-risk environments such as petrochemical plants. The gas detector 200 is an infrared spectroscopy composite gas detector 200, which integrates an infrared absorption detection module and an electrochemical detection module, enabling comprehensive detection of combustible and toxic gases.

[0021] like Figure 2 , Figure 3 and Figure 4As shown, the detection component 320 includes a support base 321 fixedly installed on the top of the support column 100, a motor 322 fixedly installed on the top of the support base 321, the output end of the motor 322 being fixedly connected to the gas detector 200, and multiple air inlet pipes 323 fixedly installed on the surface of the flow guide shroud 310.

[0022] In this embodiment, the motor 322 is used to drive the gas detector 200 to rotate slowly around the axis of the support column 100. When the gas detector 200 rotates under the drive of the motor 322, each air inlet pipe 323 is connected to the sampling port of the gas detector 200 in sequence in time, so that gases from different directions are introduced into the same detection path in sequence, realizing the centralized detection of gases from multiple directions by a single gas detector 200.

[0023] Multiple air inlet pipes 323 are arranged in a ring shape, and all multiple air inlet pipes 323 are located at the bottom of the detection end of the gas detector 200.

[0024] In this embodiment, the gas detector 200 can uniformly draw in gas samples from all directions during the rotation detection process. This circumferential arrangement can form a stable airflow field during detection, making the flow rate and concentration distribution of the introduced gas more balanced, and avoiding detection errors caused by excessive or insufficient sampling in one direction.

[0025] A flow guide frame 324 is fixedly installed inside the flow guide shroud 310. The flow guide frame 324 is located outside the detection end of the gas detector 200 and is funnel-shaped.

[0026] In this embodiment, the funnel-shaped guide frame 324 forms a converging structure, allowing the airflow introduced by multiple air inlets 323 to converge and equalize pressure inside the guide frame 324 before entering the detection end of the gas detector 200. This concentrates the gas flow direction and stabilizes the flow rate. When the gas detector 200 performs rotational detection, the guide frame 324 can make the airflow introduced from different directions form a stable converging state in the converging area, avoiding turbulence or airflow interference caused by multi-channel air intake. It can complete the detection of gas from multiple directions under unified airflow conditions, effectively improving the stability and repeatability of the detection results.

[0027] An air pump 325 is fixedly installed on the inner top wall of the air guide 310, and an air outlet pipe 326 is fixedly installed on the other side of the air pump 325. The other end of the air outlet pipe 326 extends out of the air guide 310.

[0028] In this embodiment, the vacuum pump 325 is used to provide a stable negative pressure suction inside the flow guide shroud 310, so that the gas introduced by multiple air inlet pipes 323 is synchronously sucked into the flow guide frame 324 under the action of vacuuming, and then guided to the detection end of the gas detector 200 through the converging structure to realize the unified detection of gas in multiple directions. After the gas detection is completed, the airflow is discharged through the air outlet pipe 326 via the vacuum pump 325, forming a continuous gas flow path. It should be noted that the vacuum pump 325 can be an explosion-proof miniature vacuum pump or a diaphragm pump. To adapt to the high-risk characteristics of petrochemical sites, the housing of the vacuum pump 325 is made of explosion-proof metal material to prevent the risk of deflagration caused by electrical sparks or the escape of high-temperature gas.

[0029] The surface of the air outlet pipe 326 has two openings. A filter element 327 is fixedly installed inside the air outlet pipe 326. The guide shroud 310 is slidably installed on the top of the support base 321. A sealing ring 328 is fixedly installed on the inner wall of the guide shroud 310. The sealing ring 328 is sealed and clamped to the support base 321.

[0030] In this embodiment, the filter element 327 is installed inside the gas outlet pipe 326. It can filter dust, oil mist and water vapor in the gas before the gas is discharged, preventing impurities from flowing back into the guide shroud 310, thereby protecting the detection end and sensing element of the gas detector 200. The guide shroud 310 is installed on the top of the support base 321 by sliding and is sealed and fastened by the sealing ring 328. When the gas detector 200 needs to be repaired, the guide shroud 310 can be quickly removed from the support base 321, directly exposing the detection end of the gas detector 200 for repair.

[0031] like Figure 2 , Figure 3 and Figure 5 As shown, the adjustment assembly 330 includes a sealing tube 331 disposed on the outside of the support column 100. A high-pressure pump 332 is fixedly installed on the inner wall of the sealing tube 331. One end of the support column 100 extends into the interior of the sealing tube 331 and is slidably connected to the sealing tube 331.

[0032] In this embodiment, the high-pressure pump 332 is used to provide controllable hydraulic or pneumatic driving force to the inside of the sealing tube 331. When the high-pressure pump 332 is started, the pressure state inside the sealing tube 331 can be changed to drive the support column 100 to rise and fall smoothly inside the sealing tube 331, so that the guide shroud 310 and the gas detector 200 can be precisely adjusted in the vertical direction, which is convenient to adjust the gas sampling position according to different detection areas or device heights. It should be noted that the high-pressure pump 332 can be in the form of a miniature electric hydraulic pump or an explosion-proof pneumatic pump. The specific type can be selected according to the explosion-proof level and power system configuration of the petrochemical site. In order to adapt to the high temperature, high pressure and flammable gas characteristics of the petrochemical environment, the casing of the high-pressure pump 332 is made of explosion-proof aluminum alloy or stainless steel.

[0033] The high-pressure pump 332 is located at the bottom of the support column 100. A connecting pipe 333 is fixedly installed on one side of the high-pressure pump 332, and the other end of the connecting pipe 333 extends to the outside of the sealing pipe 331.

[0034] In this embodiment, the connecting pipe 333 enables rapid pressure transmission and return during the adjustment process. When the high-pressure pump 332 stops supplying pressure, the connecting pipe 333 can also be used for pressure relief and balance to avoid the jamming phenomenon caused by residual pressure inside the sealing pipe 331.

[0035] Working Principle: In use, after the petrochemical safety detection device is fixed to the detection position by the support column 100, the high-pressure pump 332 is started to provide driving force to the sealing tube 331, driving the support column 100 to rise and fall smoothly in the vertical direction, thereby adjusting the detection height of the guide shroud 310 and the gas detector 200, so that it is located in the target detection area. After the adjustment is completed, the gas detector 200 starts to work. The motor 322 drives the gas detector 200 to rotate slowly around the support column 100. Multiple air inlet pipes 323 distributed around the outer surface of the guide shroud 310 are aligned with the sampling port of the gas detector 200 in sequence. The suction pump 325 forms a negative pressure airflow channel inside the guide shroud 310, so that the gas from different directions is synchronously drawn into the funnel-shaped collection area of ​​the guide frame 324 through the air inlet pipes 323. Guided by the flow guide frame 324, gases from different directions are pressurized and converged internally before entering the detection end of the gas detector 200. The infrared spectroscopy module and electrochemical module inside the gas detector 200 jointly analyze the gas composition and concentration. After the detection is completed, the vacuum pump 325 discharges the detected gas outside the device through the outlet pipe 326, and filters impurities and water vapor through the filter element 327, realizing continuous gas sampling and detection cycle. Throughout the detection process, the flow guide shroud 310 can maintain a stable seal on the support column 100, and the adjustment component 330 can quickly adjust the detection height according to changes in operating conditions, thereby achieving efficient, safe, and continuous detection of gases from multiple directions by a single gas detector 200.

[0036] It should be noted that the motor, air pump, and high-pressure pump mentioned above are all components with relatively mature existing technologies. The specific models can be selected according to actual needs. At the same time, the motor, air pump, and high-pressure pump can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A petrochemical safety detection device, characterized in that, include: A support column (100) is provided with a gas detector (200) on its top. A multi-directional detection mechanism (300) for detecting multi-directional gases is disposed on the outside of the gas detector (200); The multi-directional detection mechanism (300) includes a flow guide (310) disposed outside the gas detector (200), a detection component (320) disposed inside the flow guide (310), and an adjustment component (330) disposed outside the support column (100).

2. The petrochemical safety detection device according to claim 1, characterized in that, The detection component (320) includes a support base (321) fixedly installed on the top of the support column (100), a motor (322) fixedly installed on the top of the support base (321), the output end of the motor (322) being fixedly connected to the gas detector (200), and multiple air inlet pipes (323) fixedly installed on the surface of the flow guide (310).

3. The petrochemical safety detection device according to claim 2, characterized in that, The multiple air inlet pipes (323) are arranged in a ring shape, and the multiple air inlet pipes (323) are all located at the bottom of the detection end of the gas detector (200).

4. The petrochemical safety detection device according to claim 1, characterized in that, A flow guide frame (324) is fixedly installed inside the flow guide shroud (310). The flow guide frame (324) is located outside the detection end of the gas detector (200). The flow guide frame (324) is set in the shape of a funnel.

5. The petrochemical safety detection device according to claim 1, characterized in that, An air pump (325) is fixedly installed on the inner top wall of the air guide (310), and an air outlet pipe (326) is fixedly installed on the other side of the air pump (325). The other end of the air outlet pipe (326) extends out of the air guide (310).

6. The petrochemical safety detection device according to claim 5, characterized in that, The surface of the air outlet pipe (326) has two openings. A filter element (327) is fixedly installed inside the air outlet pipe (326). The flow guide (310) is slidably installed on the top of the support base (321). A sealing ring (328) is fixedly installed on the inner wall of the flow guide (310). The sealing ring (328) is sealed and clamped to the support base (321).

7. The petrochemical safety detection device according to claim 1, characterized in that, The adjustment assembly (330) includes a sealing tube (331) disposed on the outside of the support column (100), a high-pressure pump (332) is fixedly installed on the inner wall of the sealing tube (331), and one end of the support column (100) extends into the interior of the sealing tube (331) and is slidably connected to the sealing tube (331).

8. The petrochemical safety detection device according to claim 7, characterized in that, The high-pressure pump (332) is located at the bottom of the support column (100), and a connecting pipe (333) is fixedly installed on one side of the high-pressure pump (332). The other end of the connecting pipe (333) extends to the outside of the sealing pipe (331).

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