Sampler capable of heating sampling point in low-temperature environment

Abstract

The utility model discloses a sampler capable of heating a sampling point in a low-temperature environment, which relates to the field of samplers and comprises an air-breathing smoke-sensing fire detector, an external filter, a condensate water separator and an air sampling pipe, one side of the air-breathing smoke-sensing fire detector is fixedly connected with a UPS (uninterrupted power supply), a timing relay is arranged in the UPS, and the air sampling pipe is connected with the external filter. A low-temperature silica gel copper wire is fixedly connected in the timing relay, and one end of the low-temperature silica gel copper wire is fixedly connected with a condensate water separator. According to the utility model, condensation ice around a sampling point can be removed by effectively utilizing a mode of heating the sampling point, so that a good smoke sampling detection effect is achieved; a sampling point heating circuit is controlled through a timing relay, air around a sampling point is heated for a certain time, so that condensed frost and condensed ice formed around the sampling point can be removed, and formation of the phenomena of condensed frost and condensed ice around the sampling point can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of samplers, in particular to a sampler capable of heating a sampling point in a low-temperature environment. Background Art

[0002] As we all know, smoke detection is a crucial component of fire prevention and firefighting. Traditional smoke sensors fail to function properly in low-temperature environments. Aspirating smoke detectors can detect smoke and sound an alarm in advance, allowing for early detection of fires. This allows ample time to implement emergency measures to ensure life and property safety, while also preventing the spread of fire and minimizing fire damage. Therefore, ensuring the continued reliable operation of aspirating smoke detection systems in low-temperature environments is of paramount importance.

[0003] In low-temperature environments such as cold storage, ice can form in cold storage due to factors such as excessive refrigerant injection, loose doors, frost and defrosting of the evaporator, extended door opening times, which allow large amounts of hot air to enter the cold storage, frequent air conditioning cycles and prolonged cooling times, and cluttered storage that blocks the evaporator, preventing it from fully absorbing air. Condensed ice can clog the sampling pipe network in such environments, leading to blockage of sampling points and even failure of the aspirating fire detection system, posing a fire safety hazard. Physical de-icing is difficult due to factors such as the height at which the sampling pipe network is installed.

[0004] Therefore, those skilled in the art provide a sampler capable of heating a sampling point in a low temperature environment to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to provide a sampler capable of heating the sampling point in a low-temperature environment, so as to solve the problems raised in the above-mentioned background art. In a low-temperature environment such as a cold storage, the cold storage door is not tightly closed, the evaporator frosts and defrosts itself, the cold storage door is kept open for a long time, a large amount of high-temperature gas from the outside enters the cold storage, the air conditioner frequently cools and cools for a long time, and the goods are piled up randomly in the cold storage, causing the evaporator to be blocked, so that the evaporator cannot fully absorb the air in the cold storage. These problems will all lead to ice formation in the cold storage, and the sampling pipe network in such an environment will cause the sampling point to be blocked due to the condensed ice, thereby causing the aspirated fire detection system to malfunction or even be paralyzed, posing a fire safety hazard. The problem that physical de-icing is very difficult due to the installation height of the sampling pipe network and other reasons.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A sampler capable of heating sampling points in a low-temperature environment comprises an aspirating smoke fire detector, an external filter, a condensate separator and an air sampling tube, wherein one side of the aspirating smoke fire detector is fixedly connected to a UPS power supply, a timing relay is provided in the UPS power supply, a low-temperature silicone copper wire is fixedly connected inside the timing relay, one end of the low-temperature silicone copper wire is fixedly connected to the condensate separator, the aspirating smoke fire detector and the external filter are fixedly connected, one end of the external filter is fixedly connected to a tee, one end of the tee is fixedly connected to a purge kit, one end of the purge kit is fixedly connected to the condensate separator, one end of the condensate separator is fixedly connected to a large curvature elbow, one end of the large curvature elbow is fixedly connected to a straight-through, one end of the straight-through is fixedly connected to the air sampling tube, one end of the air sampling tube is fixedly connected to a heating resistor, one end of the heating resistor is fixedly connected to a three-way sampling point, and one end of the three-way sampling point is fixedly connected to an end cap.

[0008] As a preferred embodiment of the present invention: the UPS power supply is a conversion power supply capable of converting 220V AC into 24V DC, and is provided with a main power conversion. The UPS power supply is electrically connected to the aspirating smoke fire detector and the heating resistor through wires.

[0009] As a preferred embodiment of the present invention: the low-temperature silicone copper wire, heating resistor and timing relay constitute the sampling point heating and control circuit, the low-temperature silicone copper wire is placed in the sampling pipe network, the heating resistor is placed at the three-way sampling point, and the timing relay is placed in the UPS power box.

[0010] As a preferred embodiment of the present utility model: the air sampling tube, large curvature elbow, straight-through, three-way sampling point, end cap, purge kit, condensate separator and external filter constitute a sampling pipe network, wherein the large curvature elbow and straight-through are air sampling tube connectors, the three-way sampling point is a sampling part, the three-way sampling point is composed of a tee and an end cap, and the air sampling pipe network is connected to the aspirating smoke fire detector.

[0011] As a preferred embodiment of the present invention, the aspirating smoke fire detector can be an aspirating smoke fire detector with an IP66 rating.

[0012] As a preferred embodiment of the present invention: the heating resistor can be a heating resistor with a resistance of 200 ohms, a rated current of 0.1A, and a rated voltage of 24V, and the number of sampling holes of the air sampling tube can be 10.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model discloses a sampler capable of heating sampling points in low-temperature environments. This solves the problem of smoke detection sampling pipe networks in cold storage and other low-temperature environments being blocked by condensed ice formed in the low-temperature environment, thereby preventing effective smoke sampling and detection. Heating the sampling points can effectively remove condensed ice around the sampling points, thereby achieving good smoke sampling and detection results. A heating circuit at the sampling point is controlled by a timing relay, and the air around the sampling point is heated for a certain period of time to remove condensed frost and ice that have already formed around the sampling point, and effectively prevent the formation of condensed frost and ice around the sampling point. Compared with the prior art, which cannot remove condensed ice or frost around the sampling point, the provided sampling method provides a heating element at the sampling point to heat the air around the sampling point, effectively remove condensed ice and frost that have already formed, and effectively prevent the formation of condensed ice and frost. Considering that the formation of condensed ice and frost is a relatively long process, a timing relay is added to control the heating circuit. The heating circuit can be turned on or off by reading airflow data from the aspirating smoke fire detector, and the heating time can be set. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 A schematic diagram of the overall connection structure of a sampler capable of heating a sampling point in a low-temperature environment;

[0017] In the figure: 1. Aspirating smoke detector; 2. UPS power supply; 3. Low-temperature silicone copper wire; 4. Heating resistor; 5. Timing relay; 6. Air sampling tube; 7. Large curvature elbow; 8. Straight-through; 9. Three-way sampling point; 10. End cap; 11. Purge kit; 12. Condensate separator; 13. External filter; 14. Three-way. DETAILED DESCRIPTION

[0018] See also Figure 1In an embodiment of the present invention, a sampler capable of heating a sampling point in a low-temperature environment comprises an aspirating smoke fire detector 1, an external filter 13, a condensation water separator 12 and an air sampling tube 6. A UPS power supply 2 is fixedly connected to one side of the aspirating smoke fire detector 1. A timing relay 5 is provided in the UPS power supply 2. A low-temperature silicone copper wire 3 is fixedly connected to the interior of the timing relay 5. One end of the low-temperature silicone copper wire 3 is fixedly connected to the condensation water separator 12. This solves the problem that the smoke detection sampling pipe network in a cold storage and other low-temperature environments is blocked by condensation ice formed in the low-temperature environment, thereby making it impossible to perform effective smoke sampling and detection. The condensation ice around the sampling point can be effectively removed by heating the sampling point, thereby achieving a good smoke sampling and detection effect. The sampling point heating circuit is controlled by the timing relay. The air around the sampling point is heated for a certain period of time to remove the condensation frost and condensation ice already formed around the sampling point, and the formation of condensation frost and condensation ice around the sampling point can be effectively prevented. The aspirating smoke fire detector 1 is fixedly connected to the external filter 13. One end of the external filter 13 is fixedly connected to the external filter 13. The fixed connection has a tee 14, and the sampling pipe network uses low-temperature resistant halogen-free flame retardant environmentally friendly materials, so that the sampling pipe network can work reliably for a long time in a low-temperature environment. The heating line uses low-power low-temperature resistant silicone copper wire to reduce line power consumption and extend the service life of the line in a low-temperature environment. The use of a tee sampling point 9 makes the sampling point location more intuitive and increases the sampling point space to facilitate the installation of the heating resistor. The use of an IP66-level aspirating smoke detector 1 is to adapt to the condensation water and condensation ice that are easily formed in a low-temperature cold storage environment. The sampling pipe network in a low-temperature and humid environment The use of grade condensate separator can effectively remove the influence of condensate on smoke detection. One end of the tee 14 is fixedly connected to the purge kit 11, one end of the purge kit 11 is fixedly connected to the condensate separator 12, one end of the condensate separator 12 is fixedly connected to the large curvature elbow 7, one end of the large curvature elbow 7 is fixedly connected to the straight-through 8, one end of the straight-through 8 is fixedly connected to the air sampling tube 6, one end of the air sampling tube 6 is fixedly connected to the heating resistor 4, one end of the heating resistor 4 is fixedly connected to the tee sampling point 9, and one end of the tee sampling point 9 is fixedly connected to the end cap 10.

[0019] See also Figure 1UPS power supply 2 is a conversion power supply that can convert 220V AC into 24V DC, and is equipped with a main and standby power conversion. UPS power supply 2 is electrically connected to the aspirating smoke fire detector 1 and the heating resistor 4 through wires. In the sampling device, the aspirating smoke fire detector 1 and UPS power supply 2 are fixed to the wall, with the bottom 1.5 meters away from the ground. The power lines and signal lines drawn from the corresponding power supply panel and module box enter the aspirating smoke fire detector and UPS power supply 2 through the reserved holes and are connected to the correct wiring terminals. In the sampling point heating and control circuit, the timing relay 5 is installed in the UPS power box 2. The power line samples the low-power and low-temperature resistant silicone copper wire. The power line drawn from the output end of the UPS power box 2 passes through the timing relay 5 and is laid along the sampling pipeline. A heating resistor is installed at each three-way sampling point 9. The heating resistor 4 with a resistance of 200 ohms, a rated current of 0.1A, and a rated voltage of 24V is selected. There are about 10 sampling holes in each sampling tube. The low-temperature silicone copper wire 3, heating resistor 4, and timing relay 5 form the sampling point heating and control circuit. The low-temperature silicone copper wire 3 is placed in the sampling pipe network, the heating resistor 4 is placed at the three-way sampling point 9, and the timing relay 5 is placed in the UPS power supply box 2. The timing relay 5 can be triggered by the set value of the airflow sensor or by a timer, and when triggered, heats the sampling point. The sampling pipe network is installed in a standardized fixed manner according to the on-site sampling method. The sampling pipe network needs to be bonded with special glue. After the purge kit 11, external filter, and condensate separator are installed, the installation is carried out in an inverted "X" shape. Compared with the existing sampling method that cannot remove condensed ice or frost around the sampling point, the installation of a heating element at the sampling point can heat the air around the sampling point, effectively removing existing condensed ice and frost and effectively preventing the formation of condensed ice and frost. Considering that the formation of condensed ice and frost is a relatively long process, the addition of a timing relay to control the heating circuit can be set to on or off by reading the airflow data of the aspirating smoke fire detector, and the heating time can be set. The sampling network consists of an air sampling tube 6, a steep elbow 7, a straight connection 8, a three-way sampling point 9, an end cap 10, a purge kit 11, a condensate separator 12, and an external filter 13. The steep elbow 7 and the straight connection 8 are air sampling tube connectors, and the three-way sampling point 9 is a sampling component. The three-way sampling point 9 consists of a three-way connection 14 and an end cap 10. The air sampling network is connected to the aspirating smoke detector 1. The aspirating smoke detector 1 can be an IP66-rated aspirating smoke detector. The heating resistor 4 can be a 200 ohm resistor with a rated current of 0.1A and a rated voltage of 24V. The air sampling tube 6 can have 10 sampling holes.

[0020] It should be noted that the present invention is a sampler that can heat the sampling point in a low-temperature environment, including 1. an aspirated smoke fire detector; 2. a UPS power supply; 3. a low-temperature silicone copper wire; 4. a heating resistor; 5. a timing relay; 6. an air sampling tube; 7. a large-curvature elbow; 8. a straight-through; 9. a three-way sampling point; 10. an end cap; 11. a purge kit; 12. a condensate separator; 13. an external filter; 14. a tee. All components are universal standard parts or components known to those skilled in the art, and their structure and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0021] The working principle of the present invention is: it solves the problem that the sampling points of the smoke detection sampling network in cold storage and other low-temperature environments are blocked by condensed ice formed in the low-temperature environment, resulting in the inability to perform effective smoke sampling and detection. The condensed ice around the sampling points can be effectively removed by heating the sampling points, thereby achieving a good smoke sampling and detection effect. The sampling point heating circuit is controlled by a timing relay, and the air around the sampling point is heated for a certain period of time to remove the condensed frost and condensed ice that have formed around the sampling point, and can effectively prevent the formation of condensed frost and condensed ice around the sampling point. The sampling network uses low-temperature resistant halogen-free flame retardant and environmentally friendly materials, so that the sampling network can work reliably for a long time in a low-temperature environment. The heating circuit uses low-power low-temperature resistant silicone copper wire to reduce the line power consumption and extend the service life of the line in a low-temperature environment. The use of a three-way sampling point 9 makes the sampling point position more intuitive, and the sampling point space can be increased to facilitate the installation of the heating resistor. The use level is IP66. The aspirating smoke fire detector 1 is adapted to the condensation water and condensation ice that are easily formed in the low-temperature cold storage environment. The use of a grade condensation water separator in the sampling pipe network in a low-temperature and humid environment can effectively remove the impact of condensation water on smoke detection. In the sampling device, the aspirating smoke fire detector 1 and the UPS power supply 2 are fixed to the wall, and the bottom is 1.5 meters away from the ground. The power lines and signal lines drawn from the corresponding power supply panel and module box enter the aspirating smoke fire detector and the UPS power supply 2 through the reserved holes and are connected to the correct wiring terminals. In the sampling point heating and control circuit, the timing relay 5 is installed in the UPS power box 2. The power line sampling low-power and low-temperature resistant silicone copper wire is used. The power line drawn from the output end of the UPS power box 2 passes through the timing relay 5 and is laid along the sampling pipeline. A heating resistor is installed at each three-way sampling point 9. The heating resistor 4 with a resistance of 200 ohms, a rated current of 0.1A, and a rated voltage of 24V is selected. There are about 10 sampling holes in each sampling pipe. The timing relay 5 can be triggered by the set value of the airflow sensor or timed triggering. After triggering, the sampling point is heated. The sampling pipe network is installed in a standardized fixed installation according to the on-site sampling method. The sampling pipe network needs to be bonded with special glue. After the purge kit 11, external filter, and condensate separator are installed, an inverted "X" installation method is adopted. Compared with the existing technology that cannot remove the condensed ice or condensed frost around the sampling point, the provided sampling method sets a heating element at the sampling point to heat the air around the sampling point, effectively remove the formed condensed ice and condensed frost, and effectively prevent the formation of condensed ice and condensed frost. Considering that the formation of condensed ice and condensed frost will be a relatively long process, a timing relay is added to control the heating circuit. It can be set to on or off and the heating time can be set by reading the airflow data of the aspirating smoke fire detector.

[0022] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sampler capable of heating a sampling point in a low-temperature environment, comprising an aspirating smoke fire detector (1), an external filter (13), a condensate separator (12) and an air sampling tube (6), characterized in that: One side of the aspirating smoke fire detector (1) is fixedly connected to a UPS power supply (2), a timing relay (5) is provided inside the UPS power supply (2), a low-temperature silica gel copper wire (3) is fixedly connected inside the timing relay (5), one end of the low-temperature silica gel copper wire (3) is fixedly connected to a condensate separator (12), the aspirating smoke fire detector (1) is fixedly connected to an external filter (13), one end of the external filter (13) is fixedly connected to a tee (14), and one end of the tee (14) is fixedly connected to a purge filter. A kit (11), wherein one end of the purge kit (11) is fixedly connected to a condensate separator (12), one end of the condensate separator (12) is fixedly connected to a large curvature elbow (7), one end of the large curvature elbow (7) is fixedly connected to a straight-through (8), one end of the straight-through (8) is fixedly connected to an air sampling tube (6), one end of the air sampling tube (6) is fixedly connected to a heating resistor (4), one end of the heating resistor (4) is fixedly connected to a three-way sampling point (9), and one end of the three-way sampling point (9) is fixedly connected to an end cap (10).

2. The sampler capable of heating the sampling point in a low temperature environment according to claim 1, characterized in that: The UPS power supply (2) is a conversion power supply capable of converting 220V AC power into 24V DC power and is provided with a main power conversion and a standby power conversion function. The UPS power supply (2) is electrically connected to the aspirating smoke fire detector (1) and the heating resistor (4) via electric wires.

3. The sampler capable of heating the sampling point in a low temperature environment according to claim 1, characterized in that: The low-temperature silica gel copper wire (3), the heating resistor (4) and the timing relay (5) form a sampling point heating and control circuit, the low-temperature silica gel copper wire (3) is placed in the sampling pipe network, the heating resistor (4) is placed in the three-way sampling point (9), and the timing relay (5) is placed in the UPS power supply (2) box.

4. The sampler capable of heating the sampling point in a low temperature environment according to claim 1, characterized in that: The air sampling pipe (6), the large curvature elbow (7), the straight-through pipe (8), the three-way sampling point (9), the end cap (10), the purge kit (11), the condensate separator (12) and the external filter (13) constitute a sampling pipe network, wherein the large curvature elbow (7) and the straight-through pipe (8) are air sampling pipe connectors, the three-way sampling point (9) is a sampling component, and the three-way sampling point (9) is composed of a three-way pipe (14) and the end cap (10), and the air sampling pipe network is connected to the aspirating smoke fire detector (1).

5. The sampler capable of heating the sampling point in a low temperature environment according to claim 1, characterized in that: The aspirating smoke fire detector (1) may be an aspirating smoke fire detector with an IP66 rating.

6. The sampler capable of heating the sampling point in a low temperature environment according to claim 1, characterized in that: The heating resistor (4) can be a heating resistor with a resistance of 200 ohms, a rated current of 0.1A, and a rated voltage of 24V. The number of sampling holes of the air sampling tube (6) can be 10.

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