High-temperature pipeline scalding prevention interlock alarm device
By installing motion detectors and heat source detectors on high-temperature pipelines and linking them with alarm devices, the problem of scalding at the condensate drain end of high-temperature pipelines has been solved, detection reliability has been improved, safety has been ensured, production interruptions have been reduced, and the safety protection requirements of the pharmaceutical industry have been met.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SHEN LIAN BIOMEDICAL CORP
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-24
AI Technical Summary
In the existing technology, the condensate drain of high-temperature pipelines is not wrapped with insulating material, which makes it easy for personnel to be burned during operation. Physical isolation methods cannot be effectively applied to the condensate drain of pipelines such as pure steam.
Motion detectors and heat source detectors are installed on the pipeline, and combined with an alarm device, microwave radar sensors and pyroelectric infrared sensors are used to detect object movement and heat sources respectively. This is linked to an audible and visual alarm, as well as temperature and pressure sensors, to ensure that the alarm is triggered only when object movement and heat sources are detected simultaneously, thereby improving detection reliability.
It effectively avoids false triggering by a single sensor, improves the reliability of detection, promptly reminds operators to stay away from high-temperature pipelines to prevent burns, ensures safety and reduces production interruptions, and meets the safety protection requirements of GMP and OSHA.
Smart Images
Figure CN224553876U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biopharmaceutical technology, specifically to a high-temperature pipeline anti-scalding interlock alarm device. Background Technology
[0002] In the pharmaceutical industry, sterilization is one of the core requirements of GMP (Good Manufacturing Practice). SIP (Sterile In-Place) plays a crucial role in the pharmaceutical industry, primarily ensuring aseptic conditions during drug production, preventing microbial contamination, and thus guaranteeing drug safety and efficacy. However, currently, production workshops mainly use physical isolation methods for pipelines carrying pure steam or industrial steam, i.e., wrapping high-temperature pipelines with insulating materials to reduce surface temperature. However, the condensate drain ends of these pipelines, or the ends during SIP, are often not wrapped with insulating material due to the narrowness of the drain pipes (mostly half-inch), making them prone to burns for personnel during operation. Therefore, a high-temperature surface alarm device needs to be designed to address this issue.
[0003] Patent document CN207686932U discloses a burn prevention device for high-pressure gas pipes of compressors, including a metal protective cover and several mounting mechanisms. The metal protective cover consists of two perforated metal plates. Each mounting mechanism includes several metal rings, each with several straight arms. The length of each straight arm is at least 50 mm, and the perforated stainless steel plate is connected to the straight arm. This solution isolates the high-temperature gas pipe by adding a perforated metal protective cover, but this solution is a physical isolation and cannot be applied to the condensate drain end of pipes such as those used for pure steam. Utility Model Content
[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a high-temperature pipeline anti-scalding interlock alarm device.
[0005] The high-temperature pipeline anti-scalding interlock alarm device provided by this utility model includes: Motion detectors, installed on pipes, are used to detect the movement of objects within a designated area; A heat source detector, installed on the pipe, is used to detect whether a heat source exists in the designated area; An alarm device is provided, wherein the signal input terminal of the alarm device is connected to the signal output terminal of the motion detector and the signal output terminal of the heat source detector, and the alarm device is configured to be triggered when the motion detector detects a moving object and the heat source detector detects the presence of a heat source.
[0006] Preferably, the motion detector includes a microwave radar sensor, and the heat source detector includes a pyroelectric infrared sensor.
[0007] Preferably, the alarm device includes an audible and visual alarm.
[0008] Preferably, it further includes: A temperature sensor is installed on the pipe, and the signal output terminal of the temperature sensor is connected to the input terminal of the alarm device.
[0009] Preferably, it further includes: A pressure sensor is installed on the pipeline, and the signal output terminal of the pressure sensor is connected to the input terminal of the alarm device.
[0010] Preferably, one end of the pipe is provided with a steam source for introducing high-temperature steam.
[0011] Preferably, the pipeline includes a main pipe section and an inlet pipe section, one end of the inlet pipe section is connected to a steam source, and the other end of the inlet pipe section is connected to the main pipe section through a flange; Both the motion detector and the heat source detector are installed on the main pipe section. A pneumatic diaphragm valve is installed on the inlet pipe section, and the pneumatic diaphragm valve is connected to the signal output terminal of the alarm device through a wire.
[0012] Preferably, the motion detector and the heat source detector are installed side by side on the pipe, and the detection areas of both the motion detector and the heat source detector cover a designated area along the edge of the pipe.
[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention solves the problem of false triggering caused by a single sensor by installing a motion detector and a heat source detector on the pipeline, which are used to detect the movement of objects and the presence of heat sources in a designated area, respectively. The alarm device is configured to work when it receives trigger signals from both the motion detector and the heat source detector at the same time, thus improving the reliability of detection. Attached Figure Description
[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] The diagram shows: Detailed Implementation
[0016] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.
[0017] This utility model discloses a high-temperature pipeline anti-scalding interlock alarm device. By installing a motion detector and a heat source detector on the pipeline, which are used to detect the movement of objects in a designated area and the presence of a heat source, the alarm device is configured to work when it receives trigger signals from both the motion detector and the heat source detector simultaneously. This solves the problem of false triggering caused by a single sensor and improves the reliability of detection.
[0018] According to the high-temperature pipeline anti-scalding interlock alarm device provided by this utility model, such as Figure 1 As shown, the system includes: a motion detector, installed on pipe 8, for detecting the movement of objects within a designated area; a heat source detector, also installed on pipe 8, for detecting the presence of a heat source within the designated area; the motion detector and the heat source detector are installed side-by-side on pipe 8, and the detection areas of both the motion detector and the heat source detector cover the designated area along pipe 8; and an alarm device, the signal input of which is connected to the signal output of both the motion detector and the heat source detector. The alarm device is configured to trigger when the motion detector detects a moving object and the heat source detector detects a heat source. When a person approaches the high-temperature pipe, the motion detector first detects the object's movement, and the heat source detector further confirms whether it is a human body or other heat-generating target. If both the motion detector and the heat source detector trigger simultaneously, the alarm device is activated, resolving the possibility of false triggering by a single sensor and improving the reliability of the detection.
[0019] In a preferred embodiment, the motion detector includes a microwave radar sensor 1, and the heat source detector includes a pyroelectric infrared sensor 2. The alarm device includes an audible and visual alarm 3.
[0020] In a preferred embodiment, the interlocking alarm device further includes: a temperature sensor 4, installed on the pipe 8, with its signal output terminal connected to the input terminal of the alarm device; and a pressure sensor 5, installed on the pipe 8, with its signal output terminal connected to the input terminal of the alarm device. A steam source 9 is provided at one end of the pipe 8 for introducing high-temperature steam. The pipe 8 includes a main pipe section and an inlet pipe section. One end of the inlet pipe section is connected to the steam source 9, and the other end is connected to the main pipe section via a flange 6. The motion detector and the heat source detector are both installed on the main pipe section. A pneumatic diaphragm valve 7 is installed on the inlet pipe section, and the pneumatic diaphragm valve 7 is connected to the signal output terminal of the alarm device via a wire.
[0021] In a further preferred embodiment, a SIP (Self-Insulated Port) anti-scalding alarm device is provided, mainly comprising: a microwave radar sensor 1, which detects the movement of objects by emitting and receiving microwave signals, sensitive to minute changes in movement, and can detect even small movements; an infrared pyroelectric sensor 2, which senses changes in infrared energy emitted by objects; when a warm object or human body enters its sensing range, causing a change in infrared energy, the sensor is triggered; it can be linked with a temperature sensor to eliminate false alarms caused by the pipe's own heat radiation; an audible and visual alarm 3, which, when the infrared pyroelectric sensor 2 detects a human body or a warm object approaching, triggers the sensor and sends a signal back to the alarm to sound an alarm; a temperature sensor 4, mainly used to monitor the surface temperature of the pipe 8; a pressure sensor 5, which monitors abnormal pressure increases or leaks in the pipe 8, triggering an alarm and linking to close the steam valve; a flange 6, mainly connecting the pipe; a pneumatic diaphragm valve 7, which closes the steam valve after the alarm sounds; the pipe 8 transports high-temperature media; and pure steam 9 provides the gas required for SIP.
[0022] When personnel approach the high-temperature pipe, microwave radar sensor 1 first detects the movement of the object, and infrared pyroelectric sensor 2 further confirms whether it is a heat-generating target such as a human body. If microwave radar sensor 1 and infrared pyroelectric sensor 2 are triggered simultaneously, audible and visual alarm 3 is activated; or temperature sensor 4 detects abnormal surface temperature of pipe 8 or pressure sensor 5 detects abnormal pressure inside pipe 8, audible and visual alarm 3 is activated to automatically reduce steam flow or close the pneumatic diaphragm valve 7 that controls the high-temperature medium.
[0023] This invention, by combining a microwave radar sensor and an infrared pyroelectric sensor to simultaneously detect signals, solves the problem of potential false triggering caused by a single sensor, thus improving detection reliability. This interlocking alarm device can be linked with a temperature sensor to monitor the pipe surface temperature in real time. When the temperature abnormally rises above a set value, the equipment protection mechanism is triggered, automatically reducing the steam flow or closing the pneumatic diaphragm valve controlling the high-temperature medium. This solves the problem of equipment damage caused by excessive temperature, such as pipe deformation and seal aging, extending the equipment's service life.
[0024] By adopting the structure of this interlocking alarm device, the problem of high pipe surface temperature is solved. An alarm is promptly triggered when personnel approach the high-temperature pipe, reminding operators to stay away from the hot pipe to avoid burns and ensuring personnel health and work safety. This interlocking alarm device also prevents burns caused by operators failing to notice the high pipe temperature, which could lead to production stoppages. It ensures production proceeds according to plan, reduces production interruptions due to accidents, and improves production efficiency and economic benefits.
[0025] The main function of this utility model SIP anti-scalding alarm device is to prevent unplanned shutdowns caused by personnel being injured due to contact with high-temperature equipment or media during the high-temperature sterilization process through real-time monitoring and early warning, while meeting the safety protection requirements of GMP and OSHA (Occupational Safety and Health Standard) for high-risk operations.
[0026] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0027] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.
Claims
1. A high-temperature pipeline anti-scalding interlock alarm device, characterized in that, include: A motion detector, installed on the pipe (8), is used to detect the motion of objects within a specified area; A heat source detector, installed on the pipe (8), is used to detect whether a heat source exists in the designated area; An alarm device is provided, wherein the signal input terminal of the alarm device is connected to the signal output terminal of the motion detector and the signal output terminal of the heat source detector, and the alarm device is configured to be triggered when the motion detector detects a moving object and the heat source detector detects the presence of a heat source.
2. The high-temperature pipeline anti-scalding interlock alarm device according to claim 1, characterized in that, The motion detector includes a microwave radar sensor (1), and the heat source detector includes a pyroelectric infrared sensor (2).
3. The high-temperature pipeline anti-scalding interlock alarm device according to claim 1, characterized in that, The alarm device includes an audible and visual alarm (3).
4. The high-temperature pipeline anti-scalding interlock alarm device according to claim 1, characterized in that, Also includes: Temperature sensor (4) is installed on pipe (8), and the signal output terminal of temperature sensor (4) is connected to the input terminal of alarm device.
5. The high-temperature pipeline anti-scalding interlock alarm device according to claim 1, characterized in that, Also includes: A pressure sensor (5) is installed on the pipeline (8), and the signal output terminal of the pressure sensor (5) is connected to the input terminal of the alarm device.
6. The high-temperature pipeline anti-scalding interlock alarm device according to claim 1, characterized in that, A steam source (9) is provided at one end of the pipe (8) for introducing high-temperature steam.
7. The high-temperature pipeline anti-scalding interlock alarm device according to claim 6, characterized in that, The pipeline (8) includes a main pipe section and an inlet pipe section. One end of the inlet pipe section is connected to a steam source (9), and the other end of the inlet pipe section is connected to the main pipe section through a flange (6). Both the motion detector and the heat source detector are installed on the main pipe section. A pneumatic diaphragm valve (7) is installed on the inlet pipe section. The pneumatic diaphragm valve (7) is connected to the signal output terminal of the alarm device through a wire.
8. The high-temperature pipeline anti-scalding interlock alarm device according to claim 1, characterized in that, The motion detector and the heat source detector are installed side by side on the pipe (8), and the detection area of the motion detector and the detection area of the heat source detector both cover the designated area on the side of the pipe (8).