CN207133139U - A kind of fire resistant doorsets heatproof experimental rig of pressure adjustable - Google Patents

Abstract

The utility model relates to the technical field of fire door temperature resistance test, and discloses a fire door temperature resistance test device with adjustable pressure, including a laboratory, a circulation fan, a heat exchange mechanism, an air supply device, a switching valve, a heat exchange mechanism and a circulation fan It is fixedly installed in the test room, the front wall of the test room is fixedly equipped with an air intake pipe, and the air intake pipe is connected with the test room, and the outside of the front wall is fixedly equipped with a drive mechanism connected to the circulating fan. One is connected with port two and port three is connected with port four, port two is connected with port three and port one is connected with port four, or none of the four ports is connected, port one is connected with the atmosphere, the inlet of the gas supply device is connected with port two, and the outlet Connect with port four, and connect the other end of the intake pipe with port three. The structure is simple and practical, and the temperature resistance test of the fire door can be effectively carried out to realize the detection of the high temperature resistance and compression resistance of the fire door. The pressure in the test room is controllable, which ensures the quality of the fire door.

Description

A pressure-adjustable fire door temperature resistance test device

technical field

The utility model relates to the technical field of fire door temperature resistance test, in particular to a fire door temperature resistance test device with adjustable pressure.

Background technique

A fire door is a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with certain fire resistance located in fire compartments, evacuation stairwells, vertical shafts, etc. Fire doors are an important part of fire-fighting equipment and an important part of social fire prevention. In addition to ordinary doors, fire doors In addition to its function, it also has the function of preventing the spread of fire and smoke, which can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel.

The high temperature resistance of the fire door is a very important performance index. After the fire door product is formed, it is necessary to test the high temperature resistance of the fire door. At the same time, it is necessary to control the pressure in the test chamber during the test. Therefore, this The application proposes a pressure-adjustable fire door temperature resistance test device.

Utility model content

The purpose of the invention of this utility model is to provide a pressure-adjustable fire door temperature-resistant test device for the above-mentioned problems, which has a simple and practical structure and is easy to operate. High temperature performance and pressure resistance performance testing, at the same time, through the control of the switching valve, the effective control of the pressure rise and fall in the laboratory is realized, which ensures the subsequent use quality of the fire door.

The technical scheme adopted by the utility model is as follows: a pressure-adjustable fire door temperature resistance test device, including a laboratory, a circulating fan, a heat exchange mechanism, an air supply device and a switching valve, the heat exchange mechanism and the circulating fan They are all fixedly installed in the test room, and the front wall of the test room is fixedly provided with an air intake pipe, and the air intake pipe communicates with the test room. A fire door is installed on the rear wall of the switch valve, and the switch valve includes port one, port two, port three and port four, and the switch valve can control the connection between port one and port two, port three and port four, and port two and port three And the first port is connected with the fourth port or none of the four ports is connected, the first port is connected with the atmosphere, the inlet of the air supply device is connected with the second port, the outlet is connected with the fourth port, and the other end of the air intake pipe Connect with the interface three.

A pressure-adjustable fire door temperature-resistant test device described in the utility model, a partition is fixedly arranged in the test room, the partition is arranged opposite to the front wall, and the partition is connected to the front wall The space between them is cavity one, and the space between them and the rear wall is cavity two, the cavity one and cavity two are connected at the upper end and the lower end of the partition, and the air inlet pipe is connected to the cavity One is connected, the circulating fan is fixedly arranged in the first cavity, and the inlet pipe of the circulating fan passes through the partition and communicates with the second cavity.

In the pressure-adjustable temperature-resistant test device for fire doors described in the utility model, the heat exchange mechanism is arranged in cavity one, and is located above the outlet of the circulating fan, and the connection point between the air inlet pipe and the front wall is located at Between the heat exchange mechanism and the outlet of the circulating fan.

In the pressure-adjustable temperature-resistant test device for fire doors described in the utility model, the upper and lower ends of the partition are provided with gas guide plates, and the gas guide plates are respectively connected to the upper wall and the lower wall of the test room. The walls are parallel.

The pressure-adjustable temperature-resistant test device for fire doors described in the utility model, each wall of the test room is composed of metal wall panels, and a heat insulation layer is arranged on the inner side of each wall, and the outer side of the air intake pipe Provided with insulation.

In the pressure-adjustable temperature-resistant test device for fire doors described in the utility model, a gas flowmeter is arranged on the air inlet pipe, and a thermometer and a pressure gauge are arranged on the test chamber.

The pressure-adjustable temperature-resistant test device for fire doors described in the utility model, the heat exchange mechanism is a heat exchanger.

In the pressure-adjustable temperature-resistant test device for fire doors described in the utility model, the left end surface and the right end surface of the partition are respectively in contact with and fixedly connected to the left wall and the right wall of the test chamber.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are: the utility model has a simple and practical structure, is easy to operate, can effectively conduct a temperature resistance test on the fire door, and realize the high temperature resistance and compression resistance of the fire door. At the same time, through the control of the switching valve, the effective control of the pressure rise and fall in the test chamber is realized, which ensures the subsequent use quality of the fire door.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the switching valve, the intake pipe and the air supply device communication mode 1 in the utility model;

Fig. 3 is a schematic diagram of the second connection mode of the switching valve, the intake pipe and the air supply device in the utility model.

Marks in the figure: 1 is the circulating fan, 2 is the heat exchange mechanism, 3 is the air supply device, 4 is the switching valve, 5 is the front wall, 6 is the intake pipe, 7 is the driving mechanism, 8 is the rear wall, 9 is the fire door , 10 is interface one, 11 is interface two, 12 is interface three, 13 is interface four, 14 is partition, 15 is cavity one, 16 is cavity two, 17 is gas guide plate, 18 is upper wall, 19 For the lower wall, 20 is a gas flow meter.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figure 1, a pressure-adjustable fire door temperature resistance test device includes a test room, a circulating fan 1, a heat exchange mechanism 2, an air supply device 3 and a switching valve 4. The test room includes a front wall 5, a rear wall 8. The upper wall 18, the lower wall 19, the left wall (not shown in the figure), and the right wall (not shown in the figure) are enclosed and composed, and each wall is composed of a metal wall plate, and the inner side of each wall is provided with Heat insulation layer (not shown in the figure), to minimize the heat loss in the test room, the heat exchange mechanism 2 and the circulation fan 1 are fixed in the test room, fixed on the front wall 5 of the test room There is an air inlet pipe 6, and the air inlet pipe 6 communicates with the test room, and the connection between the air inlet pipe 6 and the front wall 5 is provided with a sealing structure (not shown in the figure), which effectively prevents gas leakage in the test room. The outside is covered with a heat insulation layer (not shown in the figure) to minimize the heat loss in the test chamber. The outside of the front wall 5 is fixedly provided with a drive mechanism 7 connected to the circulating fan 1. Specifically, The driving mechanism 7 is set as a driving motor, the output shaft of the driving motor is connected to the rotating shaft of the circulating fan 1, and the connection between the output shaft, the rotating shaft and the front wall 5 of the laboratory is provided with a sealing structure (not shown in the figure) for sealing , to effectively prevent air leakage, a fire door 9 is installed on the rear wall 8 of the laboratory, the switching valve 4 includes a port one 10, a port two 11, a port three 12 and a port four 13, and the switching valve 4 can control the port one 10 communicates with port 2 11, port 3 12 communicates with port 4 13, port 2 11 communicates with port 3 12, port 10 communicates with port 4 13, or none of the four ports communicates, and the port 10 communicates with the atmosphere. The inlet of the air supply device 3 is connected to the port two 11, the outlet is connected to the port four 13, the other end of the air inlet pipe 6 is connected to the port three 12, and the air supply device 3 can supply outdoor air to the test room , here the air supply device 3 is specifically set as a fan, the inlet of the fan is connected to the interface 2 11, and the outlet is connected to the interface 4 13; a partition 14 is also fixedly arranged in the test chamber, and the partition 14 is connected to the front wall 5 is arranged opposite to and parallel to the front wall 5, the space between the partition 14 and the front wall 5 is cavity one 15, and the space between the rear wall 8 is cavity two 16. The left end surface and the right end surface of the partition 14 are respectively in contact with the left wall and the right wall of the test chamber and are fixedly connected, and the cavity one 15 and the cavity two 16 communicate at the upper end and the lower end of the partition 14, and the The air intake pipe 6 communicates with the first cavity 15 , the circulating fan 1 is fixedly arranged in the first cavity 15 , and the inlet pipe of the circulating fan 1 passes through the partition 14 and communicates with the second cavity 16 . The heat exchange mechanism 2 is specifically configured as a heat exchanger, and the specific size of the heat exchanger is set according to the size of the cavity-15. In order to ensure the heating speed of the gas, the length and width of the heat exchanger are suitable for the size of the cavity-15. The height of the heat exchanger is set according to the actual situation. The outlet and inlet of the heat exchanger pass through the wall plate of the test room. Here, it is specifically set to pass through the wall plate of the left wall and the right wall. The connection between the exit and entrance and the left and right walls of the test room is provided with a sealing structure (not shown in the figure) for sealing, effectively preventing gas leakage.

Specifically, the heat exchange mechanism 2 is arranged in the first cavity 15, and is located above the outlet of the circulation fan 1, and the connection point between the air inlet pipe 6 and the front wall 5 is located between the heat exchange mechanism 2 and the outlet of the circulation fan 1. between.

Further, the upper end and the lower end of the partition 14 are provided with gas guide plates 17, and the gas guide plates 17 are respectively parallel to the upper wall 18 and the lower wall 19 of the test chamber; The hot air is guided, which is conducive to the orderly circulation of the air in the test room.

Further, the air inlet pipe 6 is provided with a gas flow meter 20, and the test chamber is provided with a thermometer (not shown in the figure) and a pressure gauge (not shown in the figure), and the thermometer is specifically arranged near the fire door 9 The position is convenient to reflect the temperature of the fire door 9 accessories; this setting can monitor the amount of air delivered, and can monitor the temperature and pressure changes in the test room in real time to determine subsequent air replenishment or temperature rise and fall operations.

During the test, as shown in Figures 1 and 2, the port one 10 of the switching valve 4 communicates with the port two 11 and the port three 12 communicates with the port four 13, the air supply device 3 starts, and the air enters the inlet of the air supply device 3 through the port one 10 , and then through the outlet of the air supply device 3, the interface four 13 and the intake pipe 6 and enter the chamber one 15, when the air volume entering the test chamber reaches the required value, close the air supply device 3, and adjust the switching valves 4 to 4 All the interfaces are not connected, which is equivalent to closing the intake pipe 6, the heat exchange mechanism 2 heats the air in the test room, the circulation fan 1 drives the high-temperature air in the test room to circulate, and the hot air performs a temperature resistance test on the fire door 9. After the temperature of the air circulated in the test room is lowered, it is circulated to the heat exchange mechanism 2 again for heating; as shown in Figures 1 and 3, when the pressure in the test room is too high, adjust the switching valve 4 so that the port two 11 and the port three 12 connection and connection between port one 10 and port four 13. At this time, the air supply device 3 pumps out the air in the test room to reduce the pressure of the test room to an appropriate value, and then adjust the switching valve 4 until all four ports are not connected, which is equivalent to closing The air intake pipe 6 is installed, the air in the test room is self-circulating and the fire door 9 is subjected to a temperature resistance test.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (8)

1. A pressure-adjustable fire door temperature resistance test device, characterized in that it includes a laboratory, a circulating fan (1), a heat exchange mechanism (2), an air supply device (3) and a switching valve (4). Both the heat exchange mechanism (2) and the circulating fan (1) are fixedly installed in the test room, and the front wall (5) of the test room is fixed with an air intake pipe (6), and the air intake pipe (6) communicates with the test room , the outer side of the front wall (5) is fixedly provided with a drive mechanism (7) connected to the circulating fan (1), a fire door (9) is installed on the rear wall (8) of the test room, and the switching valve (4) Including port one (10), port two (11), port three (12) and port four (13), the conversion valve (4) can control the connection between port one (10) and port two (11) and port three (12) is connected to port four (13), port two (11) is connected to port three (12), port one (10) is connected to port four (13), or none of the four ports are connected, and the port one (10 ) is connected to the atmosphere, the inlet of the air supply device (3) is connected to the port two (11), the outlet is connected to the port four (13), and the other end of the air inlet pipe (6) is connected to the port three ( 12) Connect. 2. A pressure-adjustable fire door temperature resistance test device according to claim 1, characterized in that: a partition (14) is fixedly installed in the test chamber, and the partition (14) is connected to the front The walls (5) are oppositely arranged, the space between the partition (14) and the front wall (5) is cavity one (15), and the space between the partition (14) and the rear wall (8) is cavity two (16), the first cavity (15) and the second cavity (16) are connected at the upper end and the lower end of the partition (14), and the air inlet pipe (6) is connected with the first cavity (15), so The circulation fan (1) is fixedly arranged in the cavity one (15), and the inlet pipe of the circulation fan (1) passes through the partition plate (14) and communicates with the cavity two (16). 3. A pressure-adjustable fire door temperature resistance test device according to claim 2, characterized in that: the heat exchange mechanism (2) is set in the cavity one (15), and is located in the circulating fan (1 ), the connection point between the air inlet pipe (6) and the front wall (5) is located between the heat exchange mechanism (2) and the outlet of the circulating fan (1). 4. A pressure-adjustable fire door temperature-resistant test device according to claim 3, characterized in that: the upper and lower ends of the partition (14) are provided with gas guide plates (17), and the gas The guide plates (17) are respectively parallel to the upper wall (18) and the lower wall (19) of the test chamber. 5. A pressure-adjustable fire door temperature resistance test device according to claim 4, characterized in that: each wall of the test room is made of metal wall panels, and a heat insulation layer is arranged on the inner side of each wall , the outer side of the air intake pipe (6) is provided with a heat insulation layer. 6. A pressure-adjustable fire door temperature resistance test device according to claim 5, characterized in that a gas flow meter (20) is provided on the air inlet pipe (6), and a gas flow meter (20) is provided on the test chamber Thermometer and manometer. 7. A pressure-adjustable fire door temperature resistance test device according to claim 6, characterized in that: the heat exchange mechanism (2) is a heat exchanger. 8. A pressure-adjustable fire door temperature-resistant test device according to claim 7, characterized in that: the left end face and the right end face of the partition (14) are respectively in contact with the left wall and the right wall of the test room. Contact and secure the connection.