CN111579710A - Energy-saving and environment-friendly fire-fighting product fire resistance test system and test method - Google Patents
Energy-saving and environment-friendly fire-fighting product fire resistance test system and test method Download PDFInfo
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- CN111579710A CN111579710A CN202010629603.3A CN202010629603A CN111579710A CN 111579710 A CN111579710 A CN 111579710A CN 202010629603 A CN202010629603 A CN 202010629603A CN 111579710 A CN111579710 A CN 111579710A
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- 238000012360 testing method Methods 0.000 title claims abstract description 107
- 238000010998 test method Methods 0.000 title abstract description 6
- 239000000779 smoke Substances 0.000 claims abstract description 186
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000003546 flue gas Substances 0.000 claims abstract description 61
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000011282 treatment Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 36
- 238000000746 purification Methods 0.000 claims description 23
- 239000000428 dust Substances 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
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- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
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- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
The invention relates to a fire-resistant test system and a fire-resistant test method for energy-saving and environment-friendly fire-fighting products, wherein a burning test sample is fixed on a furnace frame, and the furnace frame is fixed on a door frame of a fire-resistant test furnace; adjusting a smoke collecting hood sliding mechanism to move the smoke collecting hood above the burning detection sample piece, and opening an induced draft fan, an outer smoke pipe valve and an inner smoke pipe valve; igniting a burner in the fire resistance test furnace, adjusting a smoke pipe valve in the furnace to keep the pressure in the fire resistance test furnace within the range of national standard, adjusting the opening of the smoke pipe valve outside the furnace according to the size of smoke generated outside the furnace, so that smoke generated outside the furnace is collected by a smoke collecting hood through negative pressure difference, and the smoke outside the furnace collected by the smoke collecting hood is cooled and purified by the smoke and is discharged through a chimney; the flue gas generated in the fire resistance test furnace is cooled and purified by the flue gas and is discharged through a chimney; the system connects the smoke pipe outside the furnace with the smoke pipe inside the furnace, solves the problem of single-sided smoke treatment, and can purify and discharge the smoke inside the furnace and the smoke outside the furnace simultaneously.
Description
Technical Field
The invention relates to a fire-resistant test system and a fire-resistant test method for an energy-saving environment-friendly fire-fighting product, in particular to an energy-saving system for collecting, purifying and discharging smoke generated in the fire-resistant test process of the fire-fighting product.
Background
The existing fire resistance test system is complicated in structure and relatively poor in environmental protection effect, some fire resistance test furnace devices are relatively complex in process, equipment requirements are excessive, two or more draught fans are used, and cost is high and energy consumption is high.
In the test process, firstly, the fire-facing surface of a test piece can generate certain smoke and harmful gases in a furnace when the fire-facing surface cannot be fully combusted, the existing fire-resistant test device basically directly discharges the harmful gases such as the smoke and the like into the air through a flue in the furnace, the generated smoke cannot be effectively treated, and serious atmospheric pollution is caused. Secondly in the test process, the back of the body fire face of test piece can produce more flue gas relatively, and present fire resistance test system does not have better stove outer flue gas collection device, and the flue gas spreads in whole workshop, leads to the flue gas can not discharge out as completely as possible, causes serious influence to the health.
The existing common flue gas purification device is too simple, can only achieve some simple treatments, has low purification effect and serious pollution, and therefore, the existing fire resistance test system can not meet the current requirements of energy conservation and environmental protection.
Disclosure of Invention
In view of the defects of the existing fire-resistant test system, the invention provides the fire-resistant test system and the fire-resistant test method for the energy-saving and environment-friendly fire-fighting product, and the fire-resistant test system is an energy-saving and environment-friendly fire-resistant test system for the fire-fighting product in the fire-resistant test process and can effectively solve a plurality of defects of the existing fire-resistant test system.
The structural design of the system mainly comprises a smoke collecting hood designed on the furnace top, a plurality of flue gas purification devices are designed, the flue is connected with the purification devices, and a draught fan is shared, so that various environmental protection requirements of a test piece in a fire resistance test can be met, the pollution is guaranteed to be minimum, and the energy consumption can be effectively reduced. The fire resistance test system has the advantages of reasonable structure, clear principle, energy conservation, emission reduction and strong practicability.
In order to achieve the purpose, the invention adopts the technical scheme that: an energy-saving environment-friendly fire-fighting product fire-resistance test system comprises a furnace frame, a fire-resistance test furnace, a smoke-collecting hood, a smoke pipe of the smoke-collecting hood, a telescopic smoke pipe, a smoke pipe outside the furnace, a smoke pipe valve outside the furnace, a smoke pipe in the furnace, a smoke pipe valve in the furnace, a tee joint, a smoke cooling device, a smoke purifying device, a harmful gas purifying device, an induced draft fan and a chimney;
the method is characterized in that: the device also comprises a clamping groove, a frame fixer, a guide rail and a smoke collecting hood sliding mechanism;
two clamping grooves are respectively fixed on two side surfaces of the furnace frame, and the two clamping grooves on the two side surfaces are symmetrically arranged;
two frame fixers are respectively fixed on the door frames at two sides of the fire-resistant test furnace, and the two frame fixers of the door frames at two sides are symmetrically arranged;
the two guide rails are respectively fixed on two sides of the upper end surface of the fire-resistant test furnace, the smoke-collecting hood sliding mechanism is fixed on the side surface of the smoke-collecting hood, two pulleys fixed on two sides of the bottom surface of the smoke-collecting hood sliding mechanism are respectively arranged in U-shaped grooves of the two guide rails, and the smoke-collecting hood can move through the matching of the smoke-collecting hood sliding mechanism, the pulleys and the two guide rails;
one end of a smoke collecting hood smoke pipe is fixed on a smoke collecting hood through a smoke collecting hood sliding mechanism, the other end of the smoke collecting hood smoke pipe is connected with one inlet of a tee joint sequentially through a telescopic smoke pipe, an external smoke pipe and an external smoke pipe valve, the other inlet of the tee joint is connected with a fire resistance test furnace sequentially through an internal smoke pipe valve and an internal smoke pipe, and the outlet of the tee joint is connected with a chimney sequentially through a smoke cooling device, a smoke purifying device, a harmful gas purifying device, an induced draft fan and a smoke stack;
the smoke in the smoke collecting hood and the smoke in the fire-resistant test furnace are discharged from the chimney through the tee joint respectively;
the furnace frame is attached to a door frame of the fire-resistant test furnace through the matching of the four clamping grooves and the four frame fixing devices of the fire-resistant test furnace.
A test method of a fire-resistant test system of an energy-saving and environment-friendly fire-fighting product is characterized by comprising the following steps:
the method comprises the following steps that (1) a burning detection sample is fixed on a furnace frame, the furnace frame is attached to a fire-resistant test furnace through hoisting, then screws of four frame fixers welded on door frames on two sides of the fire-resistant test furnace are respectively placed into U-shaped grooves of four clamping grooves on the left and right sides of the furnace frame, rotating handles of the four frame fixers are adjusted and are in contact with the end faces of the clamping grooves, and the furnace frame is fixed on the door frame of the fire-resistant test furnace;
the smoke collecting hood sliding mechanism is adjusted in a manual or electric mode, the smoke collecting hood moves to the upper side of the burning detection sample piece in the furnace frame direction through the matching of pulleys on two sides of the smoke collecting hood sliding mechanism and two guide rails, an induced draft fan is then opened, then an external smoke pipe valve and an internal smoke pipe valve are opened, and the preparation before the test is finished;
then, igniting a burner in the fire-resistant test furnace through a program, providing simulated flame in the fire-resistant test furnace, observing the change of pressure in the fire-resistant test furnace in the test process, adjusting a valve of a flue gas pipe in the furnace to keep the pressure in the fire-resistant test furnace in a national standard range, continuously adjusting the opening of the valve of the flue gas pipe outside the furnace according to the size of flue gas generated outside the furnace, collecting the generated flue gas by a smoke-collecting hood through negative pressure difference, and cooling and purifying the flue gas by the flue gas outside the furnace collected by the smoke-collecting hood sequentially through a flue gas pipe of the smoke-collecting hood, a telescopic flue gas pipe, a flue gas pipe outside the furnace, a valve of the flue gas pipe outside the furnace, a tee joint, a flue gas cooling device, a smoke dust purifying device and a harmful gas;
smoke generated in the fire resistance test furnace enters a smoke pipe in the furnace through a flue in the fire resistance test furnace, and sequentially passes through a smoke pipe valve in the furnace, a tee joint, a total smoke pipe, a smoke cooling device, a smoke purifying device and a harmful gas purifying device to cool and purify the smoke, and then the purified smoke which meets the national emission standard is discharged through a chimney;
the flue gas cooling device cools the collected high-temperature gas, so that the temperature of the flue gas meets the temperature resistance requirements of equipment, pipelines and materials in the purification system, the cooling of the high-temperature flue gas is favorable for absorption and adsorption treatment of the gas, and the working efficiency of the smoke dust purification device and the harmful gas purification device is improved to a greater extent; the temperature of the high-temperature flue gas is reduced, so that the volume of the flue gas is obviously reduced, the specification of the purifying equipment can be reduced, and energy is saved;
in the process of a fire resistance test, large-particle smoke dust or harmful gas can be generated in the furnace or outside the furnace due to the combustion of the burning detection sample piece, and the smoke dust purification device filters and adsorbs large-particle substances in the smoke dust to prevent the discharge of large particles;
the harmful gas purification device filters the harmful gas in the smoke dust, ensures that the concentration of the harmful gas meets the relevant regulations of national requirements, ensures that the emission of the smoke dust reaches the national emission standard, and reduces the pollution to the maximum extent; the induced draft fan provides the gravitation for complete system, provides the gravitation for collection petticoat pipe and fire resistance test stove, guarantees that the pressure in the stove accords with the test standard, and the gravitation that provides through the induced draft fan discharges the flue gas after cooling, purifying through the chimney, accomplishes the work of complete system.
The invention has the beneficial effects that:
set up the collection petticoat pipe on fire resistance test system, compare with the simple pipeline absorption flue gas that utilizes, the collection petticoat pipe has guaranteed that the flue gas that produces at the test piece back of the body fire face can more effectual collection, has prevented a large amount of the stretching of flue gas, makes the flue gas obtain more abundant emission.
The smoke pipe outside the furnace and the smoke pipe inside the furnace are communicated through the tee joint, so that the problem of single-sided smoke treatment is solved, and the smoke inside the furnace and the smoke outside the furnace can be purified and discharged simultaneously;
this system has mated with fire-resistant test stove and has established flue gas heat sink, smoke and dust purifier, harmful gas purifier simultaneously, and multiple flue gas processing apparatus's structural design can be more effectual to the flue gas cool down with purification treatment, has solved fire-resistant test's pollution problem.
The whole system only uses one induced draft fan to collect and discharge the smoke inside and outside the furnace, so that the whole system is more energy-saving and economical, the construction cost of the whole system is lower, the later environmental protection transformation is not needed, and the operation cost is lower.
Drawings
FIG. 1 is a schematic structural diagram of the present invention:
FIG. 2 is a schematic representation of the structure A of FIG. 1;
FIG. 3 is a schematic view of the structure of the invention with the engagement between the slot and the frame holder:
FIG. 4 is a schematic structural view of the furnace frame of the present invention:
FIG. 5 is a side view of a fire resistance test furnace of the present invention:
fig. 6 is a state diagram of the present invention in use.
Detailed Description
As shown in fig. 1 to 5, an energy-saving and environment-friendly fire-fighting product fire-resistance test system comprises a furnace frame 2, a fire-resistance test furnace 3, a smoke-collecting hood 7, a smoke-collecting hood smoke pipe 9, a telescopic smoke pipe 10, an external smoke pipe 11, an external smoke pipe valve 12, an internal smoke pipe 13, an internal smoke pipe valve 14, a tee joint 15, a smoke temperature-reducing device 17, a smoke purifying device 18, a harmful gas purifying device 19, an induced draft fan 20 and a chimney 21; the device also comprises a clamping groove 4, a frame fixer 5, a guide rail 6 and a smoke collecting hood sliding mechanism 8.
The frame fixer 5 consists of a screw rod 5-1, a rotating handle 5-2, a fixed seat 5-3 and a shaft 5-4, wherein one end of the screw rod 5-1 is connected with the rotating handle 5-2, the other end of the screw rod 5-1 is arranged between two bulges 5-3-1 of the fixed seat 5-3, the shaft 5-4 penetrates through the shaft hole of the screw rod 5-1, one end of the shaft is arranged in a counter bore of one bulge 5-3-1, the other end of the shaft is arranged in a counter bore of the other bulge 5-3-1 and is in threaded connection with a shaft nut, and the screw rod 5-1 can horizontally move between the two bulges 5-3-1.
Two clamping grooves 4 are respectively welded on two side surfaces of the furnace frame 2, the two clamping grooves 4 are arranged at intervals, and the two clamping grooves 4 on the two side surfaces are symmetrically arranged.
Two frame fixers 5 are respectively welded on the frame surfaces of two side doors of the fire-resistant test furnace 3, and the two frame fixers 5 of the door frames on two sides are symmetrically arranged.
The two guide rails 6 are respectively fixed on two sides of the top of the fire resistance test furnace 3 in a welding or screw mode, the smoke collecting hood sliding mechanism 8 is fixed on the side surface of the smoke collecting hood 7 in a welding or screw mode, two pulleys 8-2 fixed on two sides of the bottom surface of the smoke collecting hood sliding mechanism 8 are respectively arranged in U-shaped grooves 6-1 of the two guide rails 6, and the smoke collecting hood sliding mechanism 8 is controlled to be matched with the two guide rails 6 in a manual or electric mode to complete the back and forth movement of the smoke collecting hood 7;
one end of a smoke pipe 9 of the smoke collecting hood penetrates through a hole 8-1 of a smoke collecting hood sliding mechanism 8 to be welded with the smoke collecting hood 7, the other end of the smoke pipe 9 of the smoke collecting hood sequentially passes through a telescopic smoke pipe 10, an external smoke pipe 11 and an external smoke pipe valve 12 to be connected with one inlet of a tee joint 15, the other inlet of the tee joint 15 is connected with a fire-resistant test furnace 3 through an internal smoke pipe valve 14 and an internal smoke pipe 13, an outlet of the tee joint 15 is connected with a total smoke pipe 16 and sequentially passes through a smoke cooling device 17, a smoke purifying device 18, a harmful gas purifying device 19 and an induced draft fan 20 to be connected with a chimney 21, the telescopic smoke pipe 10 is a telescopic pipe capable of moving back and forth, the smoke collecting hood 7 can effectively collect the generated smoke through negative pressure, the collected smoke enters the cooling device and the purifying device through the tee joint 15 to be exhausted from the chimney 21, and the smoke generated by the smoke pipe 13 in the smoke collecting hood enters the;
the furnace frame 2 is matched with four frame fixers 5 connected on door frames at two sides of a fire-resistant test furnace 3 through four clamping grooves 4 at two sides of the furnace frame 2, and the furnace frame 2 is fixed on the door frames of the fire-resistant test furnace 3;
the stability of the furnace frame 2 and the fire-resistant test furnace 3 in the test process is ensured by the interaction of the manual adjusting frame fixer 5 and the clamping groove 4;
flame can bring huge impact at fire-resistant test in-process, and the furnace internal pressure is too big in the twinkling of an eye, and frame fixer 5 and draw-in groove 4 can effectually avoid because the too big stove frame 2 that leads to of furnace internal pressure rocks, provides the safety guarantee for the experiment.
As shown in fig. 6, a testing method of a fire-resistant testing system for an energy-saving and environment-friendly fire-fighting product comprises the following steps: take a building door and window as the burning sample 1 as an example.
The method comprises the following steps that (1) a burning detection sample piece 1 is fixed on a furnace frame 2 through welding or other modes at first, the furnace frame 2 is attached to a fire-resistant test furnace 3 through hoisting, then screws 5-1 of four frame fixing devices 5 welded on door frames on two sides of the fire-resistant test furnace 3 are respectively placed in U-shaped grooves 4-1 of four clamping grooves 4 on the left and right of the furnace frame 2, turning handles 5-2 of the four frame fixing devices 5 are adjusted, the turning handles 5-2 are in end face contact with the clamping grooves 4, and the furnace frame 2 is fixed on the door frame of the fire-resistant test furnace 3;
the smoke collecting hood sliding mechanism 8 is adjusted in a manual or electric mode, the smoke collecting hood 7 moves to the upper side of the burning and detecting sample 1 in the direction of the furnace frame 2 through the matching of pulleys 8-2 at two sides of the smoke collecting hood sliding mechanism 8 and two guide rails 6, an induced draft fan 20 is then opened, an external smoke pipe valve 12 and an internal smoke pipe valve 14 are then opened, and the work preparation before the test is finished;
then, igniting a burner in the fire-resistant test furnace 3 through a program, providing simulated flame in the fire-resistant test furnace 3, observing the change of pressure in the fire-resistant test furnace 3 in the test process, adjusting a smoke pipe valve 14 in the furnace to keep the pressure in the fire-resistant test furnace 3 in the range of national standard, continuously adjusting the opening degree of a smoke pipe valve 12 outside the furnace according to the size of smoke generated outside the furnace, collecting the generated smoke through negative pressure difference by a smoke collecting hood 7, and sequentially passing the smoke pipe 9 of the smoke collecting hood, a telescopic smoke pipe 10, a smoke pipe 11 outside the furnace, a smoke pipe valve 12 outside the furnace, a tee joint 15, a smoke cooling device 17, a smoke purifying device 18 and a harmful gas purifying device 19 to cool and purify the smoke, and then discharging the purified smoke which meets the national emission standard through a chimney 21;
flue gas generated in the fire resistance test furnace 3 enters a furnace flue gas pipe 13 through a flue in the fire resistance test furnace 3, and sequentially passes through a furnace flue gas pipe valve 14, a tee joint 15, a total flue gas pipe 16, a flue gas cooling device 17, a smoke dust purification device 18 and a harmful gas purification device 19 to be cooled and purified, and then the purified flue gas which meets the national emission standard is discharged through a chimney 21;
the flue gas cooling device 17 cools the collected high-temperature gas, so that the temperature of the flue gas meets the temperature resistance requirements of equipment, pipelines and materials in the purification system, the cooling of the high-temperature flue gas is favorable for absorption and adsorption treatment of the gas, and the working efficiency of the smoke dust purification device 18 and the harmful gas purification device 19 is improved to a greater extent; the temperature of the high-temperature flue gas is reduced, so that the volume of the flue gas is obviously reduced, the specification of the purifying equipment can be reduced, and energy is saved;
in the process of a fire resistance test, large-particle smoke dust or harmful gas can be generated in the furnace or outside the furnace due to the combustion of the burning detection sample 1, and the smoke dust purifying device 18 filters and adsorbs large-particle substances in the smoke dust to prevent the emission of large particles;
the harmful gas purification device 19 filters the harmful gas in the smoke dust, ensures that the concentration of the harmful gas meets the relevant regulations of national requirements, ensures that the emission of the smoke dust reaches the national emission standard, and reduces the pollution to the maximum extent; the induced draft fan 20 provides the gravitation for the whole system, provides the gravitation for the smoke collecting hood 7 and the fire resistance test furnace 3, ensures that the pressure in the furnace meets the test standard, and discharges the cooled and purified flue gas through the chimney 21 by the gravitation provided by the induced draft fan 20, thereby completing the work of the whole system.
The fire fighting products to be tested were: fire doors, fire windows, fire-proof glass, fire-proof plugging materials and the like.
Claims (3)
1. An energy-saving and environment-friendly fire-fighting product fire-resistance test system comprises a furnace frame (2), a fire-resistance test furnace (3), a smoke-collecting hood (7), a smoke-collecting hood smoke pipe (9), a telescopic smoke pipe (10), an external smoke pipe (11), an external smoke pipe valve (12), an internal smoke pipe (13), an internal smoke pipe valve (14), a tee joint (15), a smoke cooling device (17), a smoke purifying device (18), a harmful gas purifying device (19), an induced draft fan (20) and a chimney (21);
the method is characterized in that: the device also comprises a clamping groove (4), a frame fixer (5), a guide rail (6) and a smoke collecting hood sliding mechanism (8);
two clamping grooves (4) are respectively fixed on two side surfaces of the furnace frame (2), and the two clamping grooves (4) on the two side surfaces are symmetrically arranged;
two frame fixers (5) are respectively fixed on door frames at two sides of the fire-resistant test furnace (3), and the two frame fixers (5) of the door frames at two sides are symmetrically arranged;
the two guide rails (6) are respectively fixed on two sides of the upper end surface of the fire-resistant test furnace (3), the smoke-collecting hood sliding mechanism (8) is fixed on the side surface of the smoke-collecting hood (7), two pulleys (8-2) fixed on two sides of the bottom surface of the smoke-collecting hood sliding mechanism (8) are respectively arranged in U-shaped grooves (6-1) of the two guide rails (6), and the smoke-collecting hood (7) can move through the matching of the smoke-collecting hood sliding mechanism (8), the pulleys (8-2) and the two guide rails (6);
one end of a smoke collecting hood smoke pipe (9) is fixed on a smoke collecting hood (7) through a hole (8-1) of a smoke collecting hood sliding mechanism (8), the other end of the smoke collecting hood smoke pipe (9) is connected with one inlet of a tee joint (15) through a telescopic smoke pipe (10), an external smoke pipe (11) and an external smoke pipe valve (12) in sequence, the other inlet of the tee joint (15) is connected with a fire-resistant test furnace (3) through an internal smoke pipe valve (14) and an internal smoke pipe (13) in sequence, and an outlet of the tee joint (15) is connected with a chimney (21) through a smoke temperature reducing device (17), a smoke purifying device (18), a harmful gas purifying device (19) and an induced draft fan (20) in sequence;
the flue gas in the fume collecting hood (7) and the flue gas in the fire-resistant test furnace (3) are discharged from a chimney (21) through a tee joint (15) respectively;
the furnace frame (2) is attached to a door frame of the fire-resistant test furnace (3) through the matching of the four clamping grooves (4) and the four frame fixing devices (5) of the fire-resistant test furnace (3).
2. The fire-resistant test system of an energy-saving and environment-friendly fire-fighting product according to claim 1, characterized in that: the frame fixer (5) is composed of a screw rod (5-1), a rotating handle (5-2), a fixed seat (5-3) and a shaft (5-4), one end of the screw rod (5-1) is connected with the rotating handle (5-2), the other end of the screw rod (5-1) is arranged between two bulges (5-3-1) of the fixed seat (5-3), the shaft (5-4) penetrates through the shaft hole of the screw rod (5-1), one end of the shaft is arranged in a counter bore of one bulge (5-3-1), the other end of the shaft is arranged in a counter bore of the other bulge (5-3-1) and is in threaded connection with a shaft nut, and the screw rod (5-1) can move horizontally between the two bulges (5-3-1).
3. A testing method using the fire resistance testing system for the energy-saving environment-friendly fire-fighting product of claim 1 is characterized by comprising the following steps:
the method comprises the following steps that (1) a burning detection sample piece is fixed on a furnace frame (2) at first, the furnace frame (2) is attached to a fire-resistant test furnace (3) through hoisting, then screws (5-1) of four frame fixing devices (5) welded on door frames on two sides of the fire-resistant test furnace (3) are respectively placed in U-shaped grooves (4-1) of four clamping grooves (4) on the left and right of the furnace frame (2), turning handles (5-2) of the four frame fixing devices (5) are adjusted, the turning handles (5-2) are in end face contact with the clamping grooves (4), and the furnace frame (2) is fixed on the door frame of the fire-resistant test furnace (3);
the smoke collecting hood sliding mechanism (8) is adjusted in a manual or electric mode, the smoke collecting hood (7) moves to the direction of the furnace frame (2) to the position above the burning detection sample piece (1) through the matching of pulleys (8-2) on two sides of the smoke collecting hood sliding mechanism (8) and two guide rails (6), an induced draft fan (20) is then opened, then an external smoke pipe valve (12) and an internal smoke pipe valve (14) are opened, and the work preparation before the test is finished;
then, a burner in the fire-resistant test furnace (3) is ignited by a program, so that simulated flame is provided in the fire-resistant test furnace (3), the change of the pressure in the fire-resistant test furnace (3) in the test process is observed, a flue gas pipe valve (14) in the furnace is adjusted to keep the pressure in the fire-resistant test furnace (3) in a national standard range, the opening degree of the smoke pipe valve (12) outside the furnace is continuously adjusted according to the size of smoke generated outside the furnace, so that the smoke collecting hood (7) collects the generated smoke through negative pressure difference, the smoke outside the furnace collected by the smoke collecting hood (7) sequentially passes through the smoke collecting hood smoke pipe (9), the telescopic smoke pipe (10), the smoke pipe outside the furnace (11), the smoke pipe valve (12) outside the furnace, the tee joint (15), the smoke cooling device (17), the smoke purifying device (18) and the harmful gas purifying device (19) to cool and purify the smoke, then the purified flue gas which meets the national emission standard is discharged through a chimney (21);
flue gas generated in the fire resistance test furnace (3) enters a furnace flue gas pipe (13) through a flue in the fire resistance test furnace (3), and sequentially passes through a furnace flue gas pipe valve (14), a tee joint (15), a total flue gas pipe (16), a flue gas cooling device (17), a smoke dust purification device (18) and a harmful gas purification device (19), the flue gas is cooled and purified, and then the purified flue gas which meets the national emission standard is discharged through a chimney (21);
the flue gas cooling device (17) cools the collected high-temperature gas, so that the temperature of the flue gas meets the temperature resistance requirements of equipment, pipelines and materials in the purification system, the cooling of the high-temperature flue gas is favorable for the absorption and adsorption treatment of the gas, and the working efficiency of the smoke dust purification device (18) and the harmful gas purification device (19) is improved to a greater extent; the temperature of the high-temperature flue gas is reduced, so that the volume of the flue gas is obviously reduced, the specification of the purifying equipment can be reduced, and energy is saved;
in the process of a fire resistance test, large-particle smoke dust or harmful gas can be generated in the furnace or outside the furnace due to the combustion of the burning detection sample piece (1), and a smoke dust purification device (18) filters and adsorbs large-particle substances in the smoke dust to prevent the emission of large particles;
the harmful gas purification device (19) filters the harmful gas in the smoke dust, ensures that the concentration of the harmful gas meets the relevant regulations of national requirements, ensures that the emission of the smoke dust reaches the national emission standard, and reduces the pollution to the maximum extent; the induced draft fan (20) provides the gravitation for the whole system, provides the gravitation for the smoke collecting hood (7) and the fire resistance test furnace (3), ensures that the pressure in the furnace meets the test standard, and discharges the cooled and purified flue gas through the chimney (21) by the gravitation provided by the induced draft fan (20) to complete the work of the whole system.
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| CN114136093A (en) * | 2021-11-17 | 2022-03-04 | 国消(天津)检测技术有限公司 | Multifunctional fire-resistant test furnace |
| CN112325649B (en) * | 2020-11-25 | 2024-11-08 | 山东省产品质量检验研究院 | Energy-saving building element fire resistance test system |
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