Building material incombustibility test furnace

Abstract

The utility model relates to the technical field of building material incombustibility tests, and discloses a building material incombustibility test furnace which comprises a bottom plate, the left side of the top of the bottom plate is fixedly connected with a multifunctional gas analyzer, the right side of the top of the bottom plate is fixedly connected with a PID (Proportion Integration Differentiation) controller, and the middle side of the top of the bottom plate is fixedly connected with a furnace body. A heat preservation layer is fixedly connected to the bottom of the inner side of the furnace body, ceramic heating rods are fixedly connected to the periphery of the interior of the heat preservation layer, supporting rods are fixedly connected to the periphery of the inner side of the furnace body, and an efficient gas sampling pump is fixedly connected to the tops of the multiple supporting rods. In the utility model, the PID controller receives the information of the K-type thermocouple, adjusts the power of the ceramic heating rod, so that the ceramic heating rod emits heat to uniformly supply heat to the furnace body, the heat insulation layer reduces the heat loss, the efficient gas sampling pump sucks the flue gas of the furnace body, the detector detects the flue gas and then transmits the information to the analyzer, and the analyzer calculates the content of the flue gas components, so that the heating efficiency is improved; the temperature rising speed is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building material non-combustibility test, especially relates to building material non-combustibility test furnace. BACKGROUND

[0002] At present, in the building material performance test, especially the combustion performance test aspect, there are many experimental devices on the market, these devices include the key components of heating device, temperature control device, gas detection device, assess the fire resistance and smoke toxicity of materials through simulating fire environment, however, the existing experimental device generally has some limitations, heating efficiency is low, temperature control is unstable, and operation is complex, these problems limit the accuracy and reliability of test results.

[0003] Through the retrieval, the utility model discloses a kind of building material non-combustibility test furnace, including furnace body, airflow cover, suspension support component, test sample suspension beam, suspension pipe, test sample suspension frame, test sample surface thermocouple, test sample center thermocouple, furnace thermocouple;Its characterized in that: suspension support component includes rotary vertical rod and positioning vertical rod;The rotary vertical rod is installed on the side wall of furnace body by first fixed seat and second fixed seat, and the positioning vertical rod is installed on the side wall of furnace body on the opposite side of rotary vertical rod by third fixed seat and fourth fixed seat;Test sample suspension beam one end is sleeved on rotary column, and is locked by rotary vertical rod locking rod, and the other end is clamped on positioning vertical rod, and is locked by positioning vertical rod locking rod;The middle position of test sample suspension beam is fixedly installed suspension pipe by suspension pipe fixing seat, the utility model can guarantee that multiple test samples are experimented under the condition of same height, with the advantages of convenient adjustment, shorten experimental period, improve experimental result accuracy, but when actually using, because only single test sample surface thermocouple and test sample center thermocouple are worn in suspension pipe, single thermocouple cannot produce uniform heat in furnace when heating in furnace, lead to uneven heat when heating, and temperature rises slowly. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides building material non-combustibility test furnace, aims at improving the prior art because only single test sample surface thermocouple and test sample center thermocouple are worn in suspension pipe, single thermocouple cannot produce uniform heat in furnace when heating in furnace, lead to uneven heat when heating, and temperature rises slowly.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: building material non-combustibility test furnace, including the bottom plate, the top left side of bottom plate is fixedly connected with multifunctional gas analyzer, the top right side of bottom plate is fixedly connected with PID controller, the top middle side of bottom plate is fixedly connected with furnace body, the inside bottom of furnace body is fixedly connected with heat preservation layer, the periphery of heat preservation layer is fixedly connected with ceramic heating rod, the periphery of furnace body is fixedly connected with support rod, the top of a plurality of support rods is fixedly connected with high -efficient gas sampling pump, the bottom of high -efficient gas sampling pump is fixedly connected with gas inlet, the top of high -efficient gas sampling pump is fixedly connected with detector, the top right side of high -efficient gas sampling pump and the top left side of furnace body are all fixedly connected with K type thermocouple, the inside of gas inlet is provided with filtering mechanism.

[0006] Through the above technical scheme: PID controller receives the potential difference signal of K type thermocouple due to temperature difference, compares with target temperature after, adjusts ceramic heating rod power, makes it heat for furnace body even heat supply, heat preservation layer reduces heat loss, high -efficient gas sampling pump generates suction, and the flue gas in furnace body is sucked through gas inlet, and the information is transmitted to analyzer after detection of detector, and the analyzer calculates the content of flue gas composition, so that heating efficiency is improved significantly, and the heating speed is fast.

[0007] As a further description of the above technical scheme:

[0008] The filtering mechanism includes a filter screen, the outer wall of the filter screen is fixedly connected to the inner side of the gas inlet, the outer wall of the filter screen is fixedly connected with a circular ring, the outer wall of the gas inlet is provided with a slot in the middle of the right side, the top right side of the filter screen is fixedly connected with a spring, and the top of the spring is fixedly connected with a clamping block.

[0009] Through the above technical scheme: when the flue gas enters the equipment, the filter screen blocks large particle impurities and dust through the gas inlet, only allows gas molecules to pass through, purifies the flue gas, ensures that the internal flue gas is pure, avoids interference with subsequent detection and analysis, the circular ring is connected with the outer wall of the filter screen, provides support and fixation for the filter screen, during installation, the filter screen with the circular ring is aligned with the slot and inserted, the clamping block is deformed and stores energy by extruding the spring, the spring is popped up after being inserted in place, and the clamping block is clamped in the slot, so that the impurities in the flue gas can be filtered, and interference with analysis is prevented.

[0010] As a further description of the above technical scheme:

[0011] The inside rear side of the multifunctional gas analyzer is fixedly connected with a plurality of display screens, and the inside bottom of the multifunctional gas analyzer is fixedly connected with a plurality of buttons.

[0012] Through the technical scheme, the multiple display screens are arranged in order on the inner rear side of the multifunctional gas analyzer, and various analysis data are clearly presented; the multiple buttons are fixed on the inner bottom side, and the user can accurately control the multifunctional gas analyzer through the buttons to realize flexible operation of various functions.

[0013] As a further description of the above technical scheme:

[0014] The bottom plate is fixedly connected with support columns at four corners of the bottom, and the bottoms of the support columns are fixedly connected with anti-skid sleeves.

[0015] Through the technical scheme, the support columns are fixedly connected at the four corners of the bottom of the bottom plate to provide stable support for the whole device, and the anti-skid sleeves are fixed at the bottoms of the support columns to effectively prevent displacement of the device during startup and ensure smooth operation.

[0016] As a further description of the above technical scheme:

[0017] The front left end of the PID controller is fixedly connected with a timing screen, and the front right end of the PID controller is fixedly connected with two button twos.

[0018] Through the technical scheme, the timing screen clearly displays the time at the front left end of the PID controller, which is convenient for the user to control the operation process, and the two button twos are used to control the PID controller at the front right end, which is simple and convenient and helps the user to accurately control the equipment operation.

[0019] As a further description of the above technical scheme:

[0020] The top of the detector is fixedly connected with a lamp holder, and the top of the lamp holder is fixedly connected with an indicator light.

[0021] Through the technical scheme, the lamp holder is fixed on the top of the detector, and the indicator light is connected to the top end of the lamp holder, which will light up as soon as the detection is completed, directly informing the user that the detection has been completed.

[0022] As a further description of the above technical scheme:

[0023] The outer wall right side of the circular ring is fixedly connected with a fixed block, and the right side of the fixed block is fixedly connected with a pull ring.

[0024] Through the technical scheme, the fixed block is closely connected to the outer wall right side of the circular ring, and the pull ring is connected to the right side of the fixed block, which facilitates pulling of the circular ring.

[0025] As a further description of the above technical scheme:

[0026] The diameter of the filter screen is less than the diameter of the notch, and the diameter of the clamping block is greater than the diameter of the spring.

[0027] Through the technical scheme, the diameter of the filter screen is smaller than that of the notch, so that the filter screen is easy to be inserted, and the diameter of the clamping block is greater than that of the spring, so that the clamping is stable, and normal installation and operation of the equipment part are ensured.

[0028] The utility model has the advantages of the following:

[0029] 1、 the utility model discloses, PID controller receives the potential difference signal that K type thermocouple generates because of temperature difference, compares with target temperature after, adjusts ceramic heating rod power, makes it heat even heat supply for furnace body, and heat preservation layer reduces heat loss, and high -efficient gas sampling pump generates suction, and the furnace flue gas is inhaled through the air inlet, and the detector detects and transmits information to the analyzer, and the analyzer calculates the flue gas composition content, thereby realize heating efficiency significantly improves, and the temperature -rising speed is fast.

[0030] 2、 the utility model discloses, when the flue gas enters the equipment, through the air inlet, filter screen blocks large particle impurities, dust, only lets gas molecule pass, purifies flue gas, ensures that the internal flue gas is pure, avoids subsequent detection analysis interference, and the circular ring is connected with the outer wall of filter screen, and provides support for it Fixed, when installing, the filter screen with circular ring is inserted into the notch, and the clamping block extrudes the spring deformation energy storage, and the spring pops up after being inserted in place, and the clamping block is clamped in the notch, thereby realize the impurity in flue gas can be filtered, prevent its interference analysis. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the perspective view of the building material non-combustibility test furnace provided by the utility model;

[0032] Figure 2 It is the front view of the building material non-combustibility test furnace provided by the utility model;

[0033] Figure 3 It is the right view of the building material non-combustibility test furnace provided by the utility model;

[0034] Figure 4 It is the sectional view of the heat preservation layer of the building material non-combustibility test furnace provided by the utility model;

[0035] Figure 5 It is the split view of the filter screen of the building material non-combustibility test furnace provided by the utility model.

[0036] LEGEND:

[0037] 1, bottom plate; 2, filter mechanism; 201, filter screen; 202, ring; 203, notch; 204, spring; 205, clamping block; 3, multifunctional gas analyzer; 4, PID controller; 5, furnace body; 6, heat preservation layer; 7, ceramic heating rod; 8, support rod; 9, high-efficiency gas sampling pump; 10, air inlet; 11, detector; 12, K-type thermocouple; 13, display screen; 14, button one; 15, support column; 16, anti-skid sleeve; 17, timing screen; 18, button two; 19, lamp holder; 20, indicator light; 21, fixed block; 22, pull ring. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] With reference to Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the utility model: building material non-combustibility test furnace, including bottom plate 1, the top left side of bottom plate 1 is fixedly connected with multifunctional gas analyzer 3, for analyzing the composition of flue gas, the top right side of bottom plate 1 is fixedly connected with PID controller 4, adjusts heating power, the top middle side of bottom plate 1 is fixedly connected with furnace body 5, is made of stainless steel, the inner side bottom of furnace body 5 is fixedly connected with heat preservation layer 6, guarantees good heat preservation effect, the inside all around of heat preservation layer 6 is fixedly connected with ceramic heating rod 7, is evenly distributed in the inner wall of furnace body 5, the inner side all around of furnace body 5 is fixedly connected with support rod 8, for supporting high-efficiency gas sampling pump 9, the top of multiple support rods 8 is fixedly connected with high-efficiency gas sampling pump 9, enough real-time collection of the flue gas generated in furnace body 5, the bottom of high-efficiency gas sampling pump 9 is fixedly connected with air inlet 10, flue gas enters from air inlet 10, the top of high-efficiency gas sampling pump 9 is fixedly connected with detector 11, for detecting flue gas, the information of detection is transmitted into multifunctional gas analyzer 3, the top right side of high-efficiency gas sampling pump 9 and the top left side of furnace body 5 are fixedly connected with K-type thermocouple 12, for real-time monitoring temperature change, the inside of air inlet 10 is provided with filter mechanism 2, for filtering the impurities in flue gas;

[0040] Specifically, the left side of the top of the bottom plate 1 is fixedly connected with a multifunctional gas analyzer 3 for analyzing the composition of flue gas, which can accurately detect the content of various components in the flue gas. The right side of the top of the bottom plate 1 is fixedly installed with a PID controller 4 for flexibly adjusting the heating power to ensure the temperature stability during the operation of the equipment. The middle side of the top of the bottom plate 1 is a furnace body 5 made of stainless steel. The inner bottom of the furnace body 5 is provided with a heat preservation layer 6, which can effectively ensure good heat preservation effect and reduce heat loss. The inner side of the heat preservation layer 6 is uniformly distributed with ceramic heating rods 7 to provide stable and uniform heating for the furnace body 5. The inner side of the furnace body 5 is fixedly connected with a plurality of support rods 8, which can stably support a high-efficiency gas sampling pump 9. The top of the plurality of support rods 8 supports the high-efficiency gas sampling pump 9, which can collect flue gas generated in the furnace body 5 in real time. The bottom of the high-efficiency gas sampling pump 9 is provided with an air inlet 10, through which the flue gas enters the pump body. The top of the high-efficiency gas sampling pump 9 is fixedly connected with a detector 11 for detecting the collected flue gas. The detected information is quickly transmitted to the multifunctional gas analyzer 3 for further analysis. The right side of the top of the high-efficiency gas sampling pump 9 and the left side of the top of the furnace body 5 are both provided with K-type thermocouples 12 for monitoring the temperature change in real time.

[0041] With reference to Figure 5 The filtering mechanism 2 comprises a filter screen 201, the outer wall of which is fixedly connected to the inner middle part of the air inlet 10 for filtering impurities in the flue gas. The outer wall of the filter screen 201 is fixedly connected with a circular ring 202 for fixing the filter screen 201. The outer wall of the air inlet 10 is provided with a slot 203 in the middle right part for placing and disassembling the filter screen 201. The top right side of the filter screen 201 is fixedly connected with a spring 204, the top of which is fixedly connected with a clamping block 205. The filter screen 201 is inserted into the slot 203, the clamping block 205 is extruded, and the spring 204 is compressed. After insertion, the spring 204 is sprung up, and the clamping block 205 clamps the slot 203.

[0042] Specifically, the filter screen 201 is fixedly connected to the inner middle part of the air inlet 10, which can efficiently filter impurities in the flue gas and ensure that the flue gas entering the equipment is pure. The outer wall of the filter screen 201 is connected with the circular ring 202 for stabilizing the filter screen 201. The outer wall of the air inlet 10 is specially provided with the slot 203 in the middle right part for conveniently placing and disassembling the filter screen 201. The top right side of the filter screen 201 is connected with the spring 204, and the top of the spring 204 is fixedly connected with the clamping block 205. When the filter screen 201 needs to be installed, it is only needed to be inserted into the slot 203. At this time, the clamping block 205 is extruded, and the spring 204 is compressed. Once inserted in place, the spring 204 is sprung up, and the clamping block 205 tightly clamps the slot 203, achieving stable installation of the filter screen 201.

[0043] With reference toFigure 1 And Figure 2 The inner rear side of the multifunctional gas analyzer 3 is fixedly connected with a plurality of display screens 13, and the inner bottom of the multifunctional gas analyzer 3 is fixedly connected with a plurality of button one 14 for controlling the multifunctional gas analyzer 3. The bottom of the four corners of the bottom plate 1 is fixedly connected with a support column 15, and the bottom of the plurality of support columns 15 is fixedly connected with an anti-skid sleeve 16 to prevent the device from moving when starting. The front left end of the PID controller 4 is fixedly connected with a timing screen 17 for displaying time, and the front right end of the PID controller 4 is fixedly connected with two button two 18 for control.

[0044] Specifically, the plurality of display screens 13 are arranged neatly on the inner rear side of the multifunctional gas analyzer 3, clearly presenting various types of analysis data. The plurality of button one 14 are fixedly connected on the inner bottom, and the user can accurately control the multifunctional gas analyzer 3 through these buttons to realize flexible operation of various functions. The support column 15 is fixedly connected at the bottom of the four corners of the bottom plate 1 to provide stable support for the entire device. The anti-skid sleeve 16 is fixedly connected at the bottom of each support column 15 to effectively prevent displacement of the device when starting to ensure smooth operation. The timing screen 17 is fixedly connected at the front left end of the PID controller 4 to clearly display the time, facilitating the user to control the operation process. The two button two 18 are fixedly connected at the front right end of the PID controller 4 for control, which is simple and convenient and helps the user to accurately control the equipment operation.

[0045] Referring to Figure 1 And Figure 5 The top of the detector 11 is fixedly connected with a lamp holder 19, and the top of the lamp holder 19 is fixedly connected with an indicator light 20. The indicator light 20 lights up after detection. The outer wall right side of the circular ring 202 is fixedly connected with a fixed block 21, and the right side of the fixed block 21 is fixedly connected with a pull ring 22 to facilitate pulling the circular ring 202. The diameter of the filter screen 201 is smaller than the diameter of the slot 203, and the diameter of the clamping block 205 is larger than the diameter of the spring 204.

[0046] Specifically, the lamp holder 19 is fixedly connected at the top of the detector 11, and the indicator light 20 connected at the top end plays a key prompting role. Whenever the detection is completed, the indicator light 20 will light up to intuitively inform the user that the detection has been completed. The fixed block 21 is fixedly connected at the outer wall right side of the circular ring 202, and the pull ring 22 is connected at the right side of the fixed block 21 to facilitate pulling the circular ring 202. The diameter of the filter screen 201 is smaller than the diameter of the slot 203 to facilitate insertion, and the diameter of the clamping block 205 is larger than the diameter of the spring 204 to ensure stable clamping and normal installation and operation of the equipment components.

[0047] Working principle: the PID controller 4 adjusts the heating power according to the feedback of the K-type thermocouple 12, which uses the thermoelectric effect to generate a potential difference when there is a temperature difference between the two ends, and transmits this potential difference signal to the PID controller 4. The PID controller 4 adjusts the power of the ceramic heating rod 7 according to the set target temperature. When the current passes through, it generates heat, which is uniformly distributed around the inside of the heat preservation layer 6, providing uniform and stable heat for the furnace body 5, ensuring that the furnace reaches the required temperature. The heat preservation layer 6 reduces heat loss by using low thermal conductivity materials to maintain stable furnace temperature. The gas inlet 10 of the high-efficiency gas sampling pump 9 allows flue gas to enter, which is sucked into the furnace body 5 by the internal mechanical device, and the support rod 8 ensures its stable operation. The detector 11 at the top of the high-efficiency gas sampling pump 9 detects the inhaled flue gas and distinguishes and measures different gas components. After the detection is completed, the information is transmitted to the multifunctional gas analyzer 3. After receiving the data from the detector 11, the multifunctional gas analyzer 3 uses its internal complex analysis, including various sensors and algorithms, to process and analyze different gas component signals, and finally accurately calculates the content of various components in the flue gas, providing detailed flue gas composition information for users.

[0048] In addition, during the process of flue gas entering the equipment, it first passes through the gas inlet 10, and the filter screen 201 plays its filtering role. Using its fine mesh structure, it blocks larger particles, dust and other impurities in the flue gas according to the principle of mechanical interception, allowing only gas molecules to pass through, thereby achieving the purpose of purifying flue gas and ensuring that the flue gas entering the equipment is pure, avoiding interference with subsequent detection and analysis work. The circular ring 202 plays an important auxiliary role, which is closely connected with the outer wall of the filter screen 201, providing structural support and fixation for the filter screen 201. When it is necessary to install or replace the filter screen 201, the slot 203 on the right side of the middle part of the outer wall of the gas inlet 10 is used for operation. During installation, the filter screen 201 with the circular ring 202 is aligned with the slot 203 and inserted. The clamping block 205 on the top right side of the filter screen 201 will contact and be extruded by the edge of the slot 203. This extrusion causes the spring 204 connected to the clamping block 205 to compress and store elastic potential energy. When the filter screen 201 is completely inserted into the appropriate position, the extrusion force on the spring 204 disappears, and the spring 204 quickly recovers to its original state and pops up, driving the clamping block 205 to extend again and tightly clamp the slot 203, thereby achieving stable installation of the filter screen 201.

[0049] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A non-combustible test furnace for building materials, comprising a base plate (1), characterized in that: The top left side of the bottom plate (1) is fixedly connected with a multifunctional gas analyzer (3), the top right side of the bottom plate (1) is fixedly connected with a PID controller (4), the top middle side of the bottom plate (1) is fixedly connected with a furnace body (5), the inner bottom of the furnace body (5) is fixedly connected with a heat preservation layer (6), the inner four sides of the heat preservation layer (6) are fixedly connected with ceramic heating rods (7), the inner four sides of the furnace body (5) are fixedly connected with support rods (8), the top of the plurality of support rods (8) is fixedly connected with a high-efficiency gas sampling pump (9), the bottom of the high-efficiency gas sampling pump (9) is fixedly connected with an air inlet (10), the top of the high-efficiency gas sampling pump (9) is fixedly connected with a detector (11), the top right side of the high-efficiency gas sampling pump (9) and the top left side of the furnace body (5) are fixedly connected with K-type thermocouples (12), and the inside of the air inlet (10) is provided with a filtering mechanism (2).

2. The building material non-combustibility test furnace according to claim 1, characterized by: The filtering mechanism (2) comprises a filter screen (201), the outer wall of the filter screen (201) is fixedly connected to the inner middle part of the air inlet (10), the outer wall of the filter screen (201) is fixedly connected with a circular ring (202), the outer wall right middle part of the air inlet (10) is provided with a notch (203), the top right side of the filter screen (201) is fixedly connected with a spring (204), and the top of the spring (204) is fixedly connected with a clamping block (205).

3. The building material non-combustibility test furnace according to claim 1, characterized by: The inside rear side of the multifunctional gas analyzer (3) is fixedly connected with a plurality of display screens (13), and the inner bottom of the multifunctional gas analyzer (3) is fixedly connected with a plurality of button one (14).

4. The building material non-combustibility test furnace according to claim 1, characterized by: The bottom of the bottom plate (1) is fixedly connected with a support column (15), and the bottom of the plurality of support columns (15) is fixedly connected with an anti-skid sleeve (16).

5. The building material non-combustibility test furnace according to claim 1, characterized by: The front left end of the PID controller (4) is fixedly connected with a timing screen (17), and the front right end of the PID controller (4) is fixedly connected with two button two (18).

6. The building material non-combustibility test furnace according to claim 1, characterized by: The top of the detector (11) is fixedly connected with a lamp holder (19), and the top of the lamp holder (19) is fixedly connected with an indicator light (20).

7. The building material non-combustibility test furnace according to claim 2, characterized by: The outer wall right side of the circular ring (202) is fixedly connected with a fixed block (21), and the right side of the fixed block (21) is fixedly connected with a pull ring (22).

8. The building material non-combustibility test furnace according to claim 2, characterized by: The diameter of the filter screen (201) is smaller than the diameter of the notch (203), and the diameter of the clamping block (205) is greater than the diameter of the spring (204).

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