CN212275109U - Response time performance testing device for linear temperature-sensing fire detector - Google Patents
Response time performance testing device for linear temperature-sensing fire detector Download PDFInfo
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- CN212275109U CN212275109U CN202020943621.4U CN202020943621U CN212275109U CN 212275109 U CN212275109 U CN 212275109U CN 202020943621 U CN202020943621 U CN 202020943621U CN 212275109 U CN212275109 U CN 212275109U
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Abstract
The utility model discloses a response time performance testing device of a linear temperature-sensing fire detector, which comprises a frame, a test box and an electric cabinet, wherein the test box is arranged on the frame, an air treatment box is arranged in the test box and is provided with a heat preservation door, and the side wall of the air treatment box is provided with a heat preservation layer and a vent; an inner chamber is arranged in the air processing box; the inner chamber is fixed on the rear wall of the air treatment box, the rear wall of the inner chamber is provided with a test piece outlet line leading to the outside of the test box, the inner chamber is connected with the small fan through two pipelines, and the pipelines are provided with electric butterfly valves; the top and the bottom of the inner chamber are respectively provided with an upper vent and a lower vent, and a test piece support is arranged in the inner chamber; heaters are fixed in the air treatment boxes at two sides of the inner chamber; the bottom of the air treatment box at the lower side of the inner chamber is provided with a stirring fan. The utility model discloses under arbitrary temperature rise speed setting, the temperature in the proof box can heat up according to the setting value steadily to can guarantee that the temperature homogeneity in the proof box is good.
Description
Technical Field
The utility model relates to a testing arrangement especially relates to a linear temperature sensing fire detector response time capability test device.
Background
With the progress of society and the vigorous development of fire-fighting electronic products, the types and the number of the products are remarkably increased. In 2015, national standard GB 16280-. The national standard aims at the test items corresponding to the response time performance of the linear temperature-sensing fire detector, wherein the test items comprise the test requirements of the response time performance test under the high-temperature (running) and low-temperature (running) environments. There is no specialized test equipment for this standard test project and test equipment. Therefore, it is an urgent problem to be solved by those skilled in the art to develop a device for testing response time performance of a linear temperature-sensitive fire detector.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned not enough, provide a linear temperature sensing fire detector response time capability test device.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a linear temperature sensing fire detector response time capability test device, includes frame, proof box and electric cabinet, the proof box sets up in the frame, and the frame bottom is equipped with truckle, its characterized in that:
an air treatment box is arranged in the test box, a heat insulation door is arranged in the test box, a heat insulation layer is arranged on the side wall of the air treatment box, and an exhaust port is formed in the side wall of the air treatment box; an inner chamber is arranged in the air processing box;
the inner chamber is fixed on the rear wall of the air treatment box, a test piece outlet line leading to the outside of the test box is arranged on the rear wall of the inner chamber, the inner chamber is connected with the small fan through two pipelines, and the pipelines are provided with electric butterfly valves; the top and the bottom of the inner chamber are respectively provided with an upper vent and a lower vent, and a test piece support is arranged in the inner chamber;
heaters are fixed in the air treatment boxes on the two sides of the inner chamber; the bottom of the air treatment box at the lower side of the inner chamber is provided with a stirring fan;
the upper part of the rack is provided with a wire storage box;
the heater, the small fan, the electric butterfly valve and the stirring fan are all connected to the electric cabinet.
Further, the inner chamber is a working space formed by stainless steel plates, 500 × deep, and is a use center of the equipment, wherein a certain temperature environment condition is guaranteed.
Further, the frame is a supporting structure of the whole test box and is formed by welding rectangular steel.
Further, the heat-insulating layer is made of high-temperature-resistant glass wool. It is sandwiched between the inner chamber and the outer plate to play a role in heat preservation.
Further, the outer surface of the test box is a stainless steel wire drawing plate.
Further, the electric cabinet is a system for providing power for electric devices and elements and realizing temperature control. The electric control cabinet is composed of a control instrument and various electric appliance elements, wherein a display instrument, various switches, a setting button and the electric appliance elements are arranged in the electric control cabinet; the electric control box and the test box are separated and are connected through a control wire and an aviation plug; the electric cabinet is powered by a three-phase four-wire system power supply, and a main power switch is arranged on the electric cabinet.
During testing, the test box of the device is pushed into a large-volume temperature-controllable box, the test box of the device is horizontally placed in the middle of the large-volume temperature-controllable box, and the environmental temperature is-10-200 ℃; the control box of the device is arranged outside the large-volume temperature-controllable box, the control box can be conveniently operated, and the electric control box is connected with the test box through a control line. The power supply voltage of the device is 380V, ventilation equipment is arranged in the environment, and enough space around the equipment is provided for a tester to operate.
The special line of the equipment electric appliance circuit is considered, and the power line can be led into the electric appliance control box through the knife switch. The voltage is stable, and the fluctuation value of the voltage is not more than +/-10% of the rated voltage.
The operation flow of the test apparatus is as follows:
1) and checking whether each device and element are normal or not and whether the device and element are in a standby working state or not.
2) And inputting a three-phase four-wire system power supply to the electric cabinet.
3) And opening a power supply main switch on the electric cabinet.
4) And inputting parameters required by the test into the control instrument.
5) And starting the equipment to operate.
5) When the operation is finished and the machine needs to be stopped, the power switch of the electric control box is turned off firstly, and then the main power switch is turned off.
The temperature control in the test box is mainly completed by an electric cabinet and a heater, and a temperature rise curve (including temperature rise rate and constant temperature time) is set by the electric cabinet. The switching value output by the relay is used for controlling the on-off of the heater in real time to adjust and correct the real-time temperature in the test box, so that the temperature in the test box can accurately track the set value in real time. The temperature in the test box is the heat generated by the heater, and the heat is uniformly dispersed by using the stirring fan, so that the temperature in the test box is uniform and stable. Under the action of the stirring fan, air in the inner chamber enters the treatment box from the lower vent of the inner chamber, then passes through the heaters on two sides, and finally enters the inner chamber from the upper vent at the top of the inner chamber to form air circulation, so that the temperature of the inner chamber is increased. Simultaneously, before the heating intensifies, start the stirring fan, temperature in the messenger proof box that can be quick keeps balanced with the temperature outside the proof box.
The testing device is suitable for testing the response time performance of the linear temperature-sensing fire detector product in a laboratory in high-temperature (running) and low-temperature (running) environments. The device is suitable for response time performance test of specified heating rate of a linear temperature-sensing fire detector product in an application temperature range. The temperature rise of the test environment at a uniform temperature rise rate can be realized within a set temperature range, and the working performance of the linear temperature-sensing fire detector in the working environment is further inspected. Therefore, the performance test of the linear temperature-sensing fire detector in the field use process is simulated, the field response time performance of the linear temperature-sensing fire detector product is tested, and the field quantitative examination of the response time of the linear temperature-sensing fire detector is realized.
The project is the research of the response time performance testing device of the linear temperature-sensing fire detector, and is mainly used for testing the high-temperature and low-temperature action performance of the linear temperature-sensing fire detector. The method provides an efficient, scientific and accurate test method for the response time performance test of the linear temperature-sensing fire detector, and the equipment parameters can be suitable for all the products needing the test at present. The device is also applied to product technology research and related scientific research subject research, and provides data and technical support for the system revision of product standards.
Compared with the prior art, the utility model the advantage be: the utility model discloses under arbitrary temperature rise speed setting, the temperature in the proof box can heat up according to the setting value steadily to can guarantee that the temperature homogeneity in the proof box is good. The whole operation is simple and safe, the precision of the test data is high, and the equipment installation is convenient.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is the side structure schematic diagram of the test box of the utility model.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a response time performance testing device for a linear temperature-sensitive fire detector comprises a frame 13, a test box 1 and an electric cabinet 12, wherein the test box 1 is arranged on the frame 13, and casters 14 are arranged at the bottom of the frame 13, and the response time performance testing device is characterized in that:
an air treatment box 15 is arranged in the test box 1, a heat preservation door 8 is arranged in the test box, a heat preservation layer 16 is arranged on the side wall of the air treatment box 15, and an exhaust port 10 is arranged in the air treatment box; an inner chamber 3 is arranged in the air processing box 15;
the inner chamber 3 is fixed on the rear wall of the air treatment box 15, the rear wall of the inner chamber 3 is provided with a test piece outlet line 4 leading to the outside of the test box 1, and is connected with a small fan 5 through two pipelines, and the pipelines are provided with electric butterfly valves 6; an upper vent (not shown) and a lower vent (not shown) are respectively arranged at the top and the bottom of the inner chamber 3, and a test piece support 7 is arranged in the inner chamber 3;
the heaters 2 are fixed in the air treatment boxes 15 at two sides of the inner chamber 3; the bottom of an air treatment box 15 at the lower side of the inner chamber 3 is provided with a stirring fan 11;
the upper part of the frame 13 is provided with a wire storage box 9;
the heater 2, the small fan 5, the electric butterfly valve 6 and the stirring fan 11 are all connected to the electric cabinet 12.
Further, the inner chamber 3 is a working space formed by stainless steel plates, 500 × deep, where a certain temperature environment condition is ensured, and is a use center of the equipment.
Further, the frame 13 is a supporting structure of the entire test chamber 1, and is formed by welding rectangular steel materials.
Further, the insulating layer 16 is made of high temperature resistant glass wool. It is sandwiched between the inner chamber 3 and the outer plate for heat preservation.
Further, the outer surface of the test chamber 1 is a stainless steel wire drawing plate.
Further, the electric cabinet 12 is a system for supplying power to the electric devices and components and for controlling the temperature. The electric control cabinet is composed of a control instrument and various electric appliance elements, wherein a display instrument, various switches, setting buttons and the electric appliance elements are arranged in an electric control cabinet 12; the electric control box 12 and the test box 1 are separated and connected through a control line and an aviation plug; the electric cabinet 12 is powered by a three-phase four-wire system power supply, and a main power switch is arranged on the electric cabinet 12.
During testing, the test box of the device is pushed into a large-volume temperature-controllable box, the test box of the device is horizontally placed in the middle of the large-volume temperature-controllable box, and the environmental temperature is-10-200 ℃; the control box of the device is arranged outside the large-volume temperature-controllable box, the control box can be conveniently operated, and the electric control box is connected with the test box through a control line. The power supply voltage of the device is 380V, ventilation equipment is arranged in the environment, and enough space around the equipment is provided for a tester to operate.
The special line of the equipment electric appliance circuit is considered, and the power line can be led into the electric appliance control box through the knife switch. The voltage is stable, and the fluctuation value of the voltage is not more than +/-10% of the rated voltage.
The operation flow of the test apparatus is as follows:
1) and checking whether each device and element are normal or not and whether the device and element are in a standby working state or not.
2) And inputting a three-phase four-wire system power supply to the electric cabinet.
3) And opening a power supply main switch on the electric cabinet.
4) And inputting parameters required by the test into the control instrument.
5) And starting the equipment to operate.
5) When the operation is finished and the machine needs to be stopped, the power switch of the electric control box is turned off firstly, and then the main power switch is turned off.
The temperature control in the test box is mainly completed by an electric cabinet and a heater, and a temperature rise curve (including temperature rise rate and constant temperature time) is set by the electric cabinet. The switching value output by the relay is used for controlling the on-off of the heater in real time to adjust and correct the real-time temperature in the test box, so that the temperature in the test box can accurately track the set value in real time. The temperature in the test box is the heat generated by the heater, and the heat is uniformly dispersed by using the stirring fan, so that the temperature in the test box is uniform and stable. Under the action of the stirring fan, air in the inner chamber enters the treatment box from the lower vent of the inner chamber, then passes through the heaters on two sides, and finally enters the inner chamber from the upper vent at the top of the inner chamber to form air circulation, so that the temperature of the inner chamber is increased. Simultaneously, before the heating intensifies, start the stirring fan, temperature in the messenger proof box that can be quick keeps balanced with the temperature outside the proof box.
The testing device is suitable for testing the response time performance of the linear temperature-sensing fire detector product in a laboratory in high-temperature (running) and low-temperature (running) environments. The device is suitable for response time performance test of specified heating rate of a linear temperature-sensing fire detector product in an application temperature range. The temperature rise of the test environment at a uniform temperature rise rate can be realized within a set temperature range, and the working performance of the linear temperature-sensing fire detector in the working environment is further inspected. Therefore, the performance test of the linear temperature-sensing fire detector in the field use process is simulated, the field response time performance of the linear temperature-sensing fire detector product is tested, and the field quantitative examination of the response time of the linear temperature-sensing fire detector is realized.
The project is the research of the response time performance testing device of the linear temperature-sensing fire detector, and is mainly used for testing the high-temperature and low-temperature action performance of the linear temperature-sensing fire detector. The method provides an efficient, scientific and accurate test method for the response time performance test of the linear temperature-sensing fire detector, and the equipment parameters can be suitable for all the products needing the test at present. The device is also applied to product technology research and related scientific research subject research, and provides data and technical support for the system revision of product standards.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a linear temperature sensing fire detector response time capability test device, includes frame, proof box and electric cabinet, the proof box sets up in the frame, and the frame bottom is equipped with truckle, its characterized in that:
an air treatment box is arranged in the test box, a heat insulation door is arranged in the test box, a heat insulation layer is arranged on the side wall of the air treatment box, and an exhaust port is formed in the side wall of the air treatment box; an inner chamber is arranged in the air processing box;
the inner chamber is fixed on the rear wall of the air treatment box, a test piece outlet line leading to the outside of the test box is arranged on the rear wall of the inner chamber, the inner chamber is connected with the small fan through two pipelines, and the pipelines are provided with electric butterfly valves; the top and the bottom of the inner chamber are respectively provided with an upper vent and a lower vent, and a test piece support is arranged in the inner chamber;
heaters are fixed in the air treatment boxes on the two sides of the inner chamber; the bottom of the air treatment box at the lower side of the inner chamber is provided with a stirring fan;
the upper part of the rack is provided with a wire storage box;
the heater, the small fan, the electric butterfly valve and the stirring fan are all connected to the electric cabinet.
2. The device for testing the response time performance of the linear temperature-sensitive fire detector according to claim 1, wherein: the inner chamber is a 500 x tall working space made of stainless steel plates.
3. The device for testing the response time performance of the linear temperature-sensitive fire detector according to claim 1, wherein: the frame is a supporting structure of the whole test box and is formed by welding rectangular steel.
4. The device for testing the response time performance of the linear temperature-sensitive fire detector according to claim 1, wherein: the heat-insulating layer is made of high-temperature-resistant glass wool.
5. The device for testing the response time performance of the linear temperature-sensitive fire detector according to claim 1, wherein: the outer surface of the test box is a stainless steel wire drawing plate.
6. The device for testing the response time performance of the linear temperature-sensitive fire detector according to claim 1, wherein: the electric control box and the test box are separated and are connected through a control line and an aviation plug; the electric cabinet is powered by a three-phase four-wire system power supply, and a main power switch is arranged on the electric cabinet.
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| CN202020943621.4U CN212275109U (en) | 2020-05-29 | 2020-05-29 | Response time performance testing device for linear temperature-sensing fire detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354232A (en) * | 2021-12-31 | 2022-04-15 | 四川天微电子股份有限公司 | Fire extinguishing system response time testing method based on linear temperature sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354232A (en) * | 2021-12-31 | 2022-04-15 | 四川天微电子股份有限公司 | Fire extinguishing system response time testing method based on linear temperature sensor |
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