JP4824412B2 - Combustion testing machine - Google Patents

Description

  The present invention relates to a combustion tester that performs a UL combustion test and a cone calorimeter test of a small test piece.

A UL combustion test apparatus for measuring various characteristics of a specimen material by burning a small specimen is known, and a cone calorimeter test apparatus for measuring characteristics of a specimen material by burning a small specimen is also known. It is.
All of these known combustion test apparatuses are operated manually.

If the operation of these combustion testers is automated, there is a problem that the work becomes efficient.
The present invention provides a combustion tester in which a UL combustion test device and a cone calorimeter method test device are arranged in the same chamber, and a UL combustion test and a cone calorimeter method test can be separately performed in the same chamber. With the goal. Another object of the present invention is to provide a combustion tester that automates the operation of these combustion test apparatuses.
Furthermore, an object of the present invention is to provide a combustion tester in which a UL combustion test device or a cone calorimeter method test device is housed in a chamber and the operation of each device is automated.

For this purpose, the combustion tester of the present invention has a chamber having an air intake port, an exhaust hood, and a front window, and a transparent door is provided on the window so as to be openable and closable. It is equipped with a device and a small test piece cone calorimeter test device, and can perform a UL combustion test and a small test piece cone calorimetry test separately.
Further, the combustion tester of the present invention is configured such that the UL combustion test device and the small test piece cone calorimeter test device can be arranged at positions facing the window.
Furthermore, the combustion tester of the present invention is provided with a table movably in the left-right direction on a table in the chamber, and a UL combustion test device and a cone calorimeter test device are installed adjacently on this table, The UL combustion test apparatus or the cone calorimeter test apparatus can be arranged at a position facing the window by moving in the direction.

The combustion tester of the present invention automatically performs flame contact and flame separation with a burner of the UL combustion test apparatus. Then, the automatic flame contact and flame release of the burner are performed by reciprocating movement of the burner support base with an air cylinder.
In addition, the combustion tester of the present invention is a vertical combustion test of a test piece of a UL combustion test apparatus, and automatically causes the burner to follow in the vertical direction according to a test piece whose length changes due to combustion. A burner that detects the change in the length of the test piece whose length changes due to combustion is detected by a laser sensor, operates a pulse motor according to the detection signal, rotates the vertical screw shaft, and is screwed onto the screw shaft. The support is raised and the burner automatically follows in the vertical direction.
Further, the combustion tester of the present invention is a vertical combustion test of a test piece of a UL combustion test apparatus, which automatically measures the afterflame time after the flame is released to the test piece and whether or not the absorbent cotton is ignited by falling objects. is there. And the after-flame time after the flame-off to the said test piece and the presence or absence of the absorbent cotton ignition by a fallen object are automatically measured with a ultraviolet sensor.

The combustion tester of the present invention automatically measures a change in weight of a test piece in a vertical combustion test of a test piece of a UL combustion test apparatus. Then, the column is erected on the table adjacent to the burner support, and an upright plate that supports a support arm that supports the test piece is provided at the upper end of the column, and the test piece is supported at the tip of the support arm. A test piece is positioned directly above the burner, a load cell is disposed on the base end of a support arm that is pivotally supported by the upright plate, and the support arm is supported by the detection needle of the load cell.
In addition, the combustion tester of the present invention automatically measures the heat generation rate of the test piece burned by the UL combustion test apparatus. Then, the combustion gas of the burning test piece is collected in the exhaust hood of the chamber, and the heat generation rate is automatically measured by an oxygen consumption measuring method.

The combustion tester of the present invention automatically measures the weight change of a test piece in a cone calorimetry test of a small test piece. Then, a support column standing on the table is provided, a heater support plate is provided on the support column, a heat radiation heater is provided on the heater support plate, and a test piece tray is disposed immediately below the heat radiation heater. The test piece tray is provided on a tray support column, and the lower end of the tray support column is supported by a load cell mounted on a table.
The combustion tester of the present invention automatically measures the heat generation rate of a burning test piece in a cone calorimeter method test of a small test piece. Then, the combustion gas of the burning test piece is collected in the exhaust hood of the chamber, and the heat generation rate is automatically measured by an oxygen consumption measuring method.
Furthermore, the combustion tester of the present invention is a cone calorimeter test of a small test piece, and automatically measures the weight change and heat generation rate of the test piece by keeping away the heat radiation after the test piece burns. Then, the column provided by extending the heater support plate is erected on a support base that is movable back and forth on the table, and the support base is reciprocated by an air cylinder, and is attached to the heater support plate. Move the heat radiation heater backward to keep the heat radiation away.

According to the combustion tester of the present invention, as described in claim 20, the chamber has an air intake, an exhaust hood, and a front window, and a transparent door can be opened and closed on the window. A test piece UL combustion test apparatus is provided in the chamber, and the test piece UL combustion test is automatically performed.
In the combustion tester according to the twentieth aspect of the present invention, flame contact and flame separation with a burner of the UL combustion test apparatus are automatically performed. Then, the automatic flame contact and flame release of the burner are performed by reciprocating movement of the burner support base with an air cylinder.
21. The combustion tester according to claim 20, wherein in the vertical combustion test of the test piece of the UL combustion test apparatus, the burner is automatically operated in the vertical direction in accordance with the test piece whose length changes due to combustion. To follow. A burner that detects the change in the length of the test piece whose length changes due to combustion is detected by a laser sensor, operates a pulse motor according to the detection signal, rotates the vertical screw shaft, and is screwed onto the screw shaft. The support is raised and the burner automatically follows in the vertical direction.
21. The combustion tester according to claim 20, wherein in the vertical combustion test of the test piece of the UL combustion test apparatus, the afterflame time after the flame is released to the test piece and whether or not the absorbent cotton is ignited by falling objects. It measures automatically. And the afterflame time after the flame-off to the said test piece and the presence or absence of the absorbent cotton ignition by fallen objects are automatically measured with a ultraviolet sensor.

The combustion tester according to the twentieth aspect of the present invention is the combustion tester according to the present invention, which automatically measures the weight change of the test piece in the vertical combustion test of the test piece of the UL combustion test apparatus. Then, the column is erected on the table adjacent to the burner support, and an upright plate that supports a support arm that supports the test piece is provided at the upper end of the column, and the test piece is supported at the tip of the support arm. A test piece is positioned directly above the burner, a load cell is disposed on the base end of a support arm that is pivotally supported by the upright plate, and the support arm is supported by the detection needle of the load cell.
21. The combustion tester according to the twentieth aspect of the present invention, which automatically measures the heat generation rate of the test piece burned by the UL combustion test apparatus. Then, the combustion gas of the burning test piece is collected in the exhaust hood of the chamber, and the heat generation rate is automatically measured by an oxygen consumption measuring method.

According to the combustion tester of the present invention, as described in claim 31, the chamber has an air intake, an exhaust hood, and a front window, and a transparent door can be opened and closed on the window. A small test piece cone calorimeter test device is provided in the chamber, and a small test piece cone calorimetry test is automatically performed.
The combustion tester according to the thirty-first aspect of the present invention automatically measures a change in weight of a test piece in a cone calorimetry test of a small test piece. Then, a support column standing on the table is provided, a heater support plate is provided on the support column, a heat radiation heater is provided on the heater support plate, and a test piece tray is disposed immediately below the heat radiation heater. The test piece tray is provided on a tray support column, and the lower end of the tray support column is supported by a load cell mounted on a table.
The combustion tester according to the thirty-first aspect of the present invention automatically measures the heat generation rate of a burning test piece in a cone calorimetry test of a small test piece. Then, the combustion gas of the burning test piece is collected in the exhaust hood of the chamber, and the heat generation rate is automatically measured by an oxygen consumption measuring method.
32. The combustion tester according to claim 31, wherein in the cone calorimeter test of a small test piece, after the test piece burns, the heat radiation is kept away to automatically change the weight change and the heat generation rate of the test piece. It is to be measured. The support provided by extending the heater support plate is erected on a support base that can move back and forth on the table, and the support base is reciprocated by an air cylinder. The radiant heater was moved backward to keep the heat radiation away.

The combustion tester according to the present invention is the combustion tester according to any one of claims 1 to 37, wherein the combustion tester includes a data processing device so as to take in measured values and automatically calculate the results. .
A combustion tester according to the present invention is the combustion tester according to any one of claims 1 to 37, wherein a data processing device is provided to capture a test image taken with a video camera. It is.

In the combustion tester of the present invention, the chamber has an air intake port, an exhaust hood, and a front window, and a transparent door is provided on the window so that it can be opened and closed. A test piece cone calorimeter method test equipment is provided, and it is possible to perform a UL combustion test and a small test piece cone calorimetry test separately. This has the effect of being able to perform both metrology tests.
In addition, the combustion tester of the present invention can arrange the UL combustion test apparatus and the cone calorimeter test apparatus separately at positions facing the window, so that the chamber for the UL combustion test or the cone calorimeter method is provided in the chamber. There is an effect that one window can be shared without providing separate test windows.
Furthermore, the combustion tester of the present invention is provided with a table movably in the left-right direction on a table in the chamber, and a UL combustion test device and a cone calorimeter test device are installed adjacently on this table, Since the UL combustion test device or the cone calorimeter test device can be arranged at the position facing the window by moving in the direction, the UL combustion test device or the cone calorimeter test device can be simply moved in the left-right direction. Can be easily brought to the window.

Since the combustion tester of the present invention automatically performs flame contact and flame release to the test piece by the burner of the UL combustion test apparatus, that is, the burner automatically flames and flames are removed from the air of the burner support base. Since it is performed by reciprocating movement by a cylinder, there is an effect that the flame can be automatically contacted and flame-released to the test piece.
Further, the combustion tester of the present invention causes the burner to automatically follow the vertical direction according to the test piece whose length changes due to combustion in the vertical combustion test of the test piece of the UL combustion test apparatus, that is, A burner support base that detects the change in length of a test piece whose length changes due to combustion using a laser sensor, operates a pulse motor in response to the detection signal, rotates a vertical screw shaft, and is screwed onto the screw shaft Since the burner is caused to automatically follow in the vertical direction, the burner can be caused to automatically follow in the vertical direction according to the test piece whose length changes due to combustion.
In addition, the combustion tester of the present invention automatically measures the afterflame time after flame release to the test piece and the presence or absence of absorbent cotton ignited by falling objects in the vertical combustion test of the test piece of the UL combustion test apparatus. That is, since the afterflame time after the flame release to the test piece and the presence or absence of the absorbent cotton by the fallen object are automatically measured by the UV sensor, the afterflame time after the flame release to the test piece, the absorbent cotton due to the fallen object This has the effect of automatically measuring the presence or absence of ignition.

Since the combustion tester of the present invention automatically measures the weight change of the test piece in the vertical combustion test of the test piece of the UL combustion test apparatus, that is, the column is erected adjacent to the burner support on the table, An upright plate that supports the support arm that supports the test piece is provided at the upper end of the support column, the test piece is supported at the tip of the support arm, this test piece is positioned directly above the burner, and the support arm that supports the upright plate is supported. Since the load cell is arranged on the base end and the support arm is supported by the detection needle of this load cell, there is an effect that the weight change of the test piece can be automatically measured in the vertical combustion test of the test piece.
In addition, the combustion tester of the present invention automatically measures the heat generation rate of the burned test piece of the UL combustion test apparatus. That is, the combustion gas of the burned test piece is collected in the exhaust hood of the chamber and the oxygen consumption amount Since the heat generation rate is automatically measured by the measurement method, the heat generation rate of the test piece can be automatically measured.

Since the combustion tester of the present invention automatically measures the weight change of a test piece in a cone calorimetry test of a small test piece, that is, a support column standing on the table is provided, and a heater support plate is provided on the support column. A heat radiation heater with an open upper portion is provided on the heater support plate, a test piece tray is arranged immediately below the heat radiation heater, the test piece tray is provided on the tray support column, and the lower end of the tray support column is provided. Is supported by the load cell mounted on the table, so that it is possible to automatically measure the weight change of the test piece in the combustion test of the test piece.
Further, the combustion tester of the present invention automatically measures the heat generation rate of the burning test piece in the cone calorimetry test of the test piece, that is, the combustion gas of the burning test piece is supplied to the exhaust hood of the chamber. Since the heat generation rate is automatically measured by collecting and measuring the oxygen consumption, the heat generation rate can be automatically measured.
Furthermore, the combustion tester of the present invention automatically measures the weight change and the heat generation rate of the test piece in a cone calorimeter test of a small test piece by keeping away the heat radiation after the test piece burns. The support provided by extending the heater support plate is erected on a support base that can move back and forth on the table, and the support base is reciprocated by an air cylinder. Since the radiant heater is moved backward to keep the heat radiation away, there is an effect of automatically performing the heat radiation away operation.

In the combustion tester of the present invention, the chamber has an air intake, an exhaust hood, and a front window, and a transparent door can be opened and closed on the window, and a UL combustion test of a test piece is provided in the chamber. Since the apparatus is provided and the UL combustion test of the test piece is automatically performed, it is possible to provide a single UL combustion tester capable of automatically performing the UL combustion test.
Further, the combustion tester according to the present invention is the combustion tester according to claim 20, wherein the flame tester automatically performs the flame contact and the flame release to the test piece by the burner of the UL combustion test apparatus. The automatic flame contact and flame release of the burner are performed by reciprocating movement by an air cylinder of the burner support base. Therefore, in the combustion tester according to claim 20, the flame contact and flame release of the test piece by the burner are performed. There is an effect that can be performed automatically.
Further, the combustion tester of the present invention is the combustion tester according to claim 20, wherein in the vertical combustion test of the test piece of the UL combustion test apparatus, according to the test piece that is burned and changes its length, Since the burner automatically follows the vertical direction, that is, the change in length of the test piece whose length changes due to combustion is detected by the laser sensor, and the pulse motor is activated in accordance with the detection signal, The combustion tester according to claim 20, wherein the length of the burner changes as a result of raising the burner support base that rotates the screw shaft and engages with the screw shaft to automatically follow the burner in the vertical direction. There is an effect that the burner can automatically follow in the vertical direction according to the test piece.
The combustion tester of the present invention is the combustion tester according to claim 20, wherein
In the vertical combustion test of the test piece of the UL combustion test equipment, the after-flame time after the flame release to the test piece and the presence or absence of ignition of the absorbent cotton by the fallen object are automatically measured, that is, the flame release to the test piece. Since the after-flame time and whether or not the absorbent cotton is ignited by the fallen object are automatically measured by the ultraviolet sensor, the after-flame time after the flame is released to the test piece and the drop in the combustion tester according to claim 20. There is an effect that it is possible to automatically measure whether the absorbent cotton is ignited by an object.

The combustion tester of the present invention is the combustion tester according to claim 20, wherein the weight change of the test piece is automatically measured in the vertical combustion test of the test piece of the UL combustion test apparatus. A column is erected on the table adjacent to the burner support, and an upright plate that supports a support arm that supports the test piece is provided at the upper end of the column, and the test piece is supported at the tip of the support arm. 21. The combustion tester according to claim 20, wherein the load cell is disposed on a base end of a support arm that is positioned directly above the burner and is pivotally supported by the upright plate, and the support arm is supported by a detection needle of the load cell. Thus, there is an effect that the weight change of the test piece can be automatically measured in the vertical burning test of the test piece.
Further, the combustion tester according to the present invention is the combustion tester according to claim 20, which automatically measures the heat generation rate of the burned test piece of the UL combustion test apparatus, that is, the burned test piece. The combustion heat is collected in an exhaust hood of the chamber and the heat generation rate is automatically measured by an oxygen consumption measurement method. There is an effect that can be measured.

In the combustion tester of the present invention, the chamber has an air intake, an exhaust hood, and a front window, and a transparent door can be opened and closed in the window. Since it is equipped with a measuring method testing device and automatically conducts a cone calorimetry test of a small test piece, it is possible to provide a single cone calorimeter testing machine capable of automatically performing a cone calorimetry test.
Further, the combustion tester according to the present invention is the combustion tester according to claim 31, wherein the change in weight of the test piece is automatically measured in the cone calorimetry test of the small test piece, that is, the above-mentioned A support column standing up on the table is provided, and a heater support plate is provided overhanging the support column. A heat radiation heater with an open top is provided on the heater support plate, and a test specimen tray is arranged directly under the heat radiation heater. 32. The combustion tester according to claim 31, wherein the test piece tray is provided on the tray support column and the lower end of the tray support column is supported by the load cell mounted on the table. There is an effect that can be measured.
Further, the combustion tester according to the present invention is the combustion tester according to the above-mentioned claim 31, wherein the heat generation rate of the burning test piece is automatically measured in the cone calorimetry test of the small test piece, that is, 32. The combustion tester according to claim 31, wherein the combustion gas of the burning test piece is collected in an exhaust hood of the chamber and the heat generation rate is automatically measured by an oxygen consumption measurement method. There is an effect that the heat generation rate can be automatically measured.
The combustion tester according to the present invention is the combustion tester according to claim 31, wherein in the cone calorimetry test of the small test piece, the thermal radiation is kept away after the test piece burns, and the weight of the test piece is measured. Since the change and the heat generation rate are automatically measured, the support column that extends from the heater support plate is erected on a support base that can be moved back and forth on the table, and this support base is reciprocated by an air cylinder. The heat radiation heater attached to the heater support plate is moved backward to keep the heat radiation away, so that the combustion tester according to claim 31, wherein the operation of keeping the heat radiation away is automatically performed. There is an effect that can be done.

Since the combustion testing machine of the present invention is provided with a data processing device, the measurement value is taken in and the result is automatically processed, so that the calculation result can be immediately known.
In addition, since the combustion tester of the present invention is provided with a data processing device so as to capture a test image taken with a video camera, the test result can be confirmed at any time.

A specific embodiment of the present invention will be described based on the drawings.
FIG. 1 shows a front view of the combustion tester of the present invention. This combustion tester accommodates a UL combustion test apparatus and a cone calorimeter test apparatus, which will be described later, in a chamber 1 shown with a part cut away, and this chamber 1 has an air intake 2 and a front window 3. . The window 3 is positioned at the center of the front surface of the chamber 1, and a transparent door 4 is provided in the window 3 so as to be opened and closed by a hinge structure 5. The window 3 is configured so that a test situation can be confirmed by viewing a UL combustion test apparatus and a cone calorimeter method test apparatus, which will be described later, from the outside of the chamber 1. Further, an exhaust hood 6 is disposed at the upper center position in the chamber 1.

  In this chamber 1, a UL combustion test apparatus A and a cone calorimeter test apparatus B are accommodated. A stand 7 is fixed in the chamber 1, and upright portions 8 and 8 are fixed at the four corners of the stand 7. Guide rods 9 and 9 are respectively installed between the front standing portions 8 and 8 and between the rear standing portions 8 and 8, and are guided by the guide rods 9 and 9 so that the UL combustion test apparatus A and the amount of cone heat are supplied. The measurement test apparatus B is guided to move in the left-right direction. Therefore, the table 10 is supported by the guide rods 9 and 9 so as to be movable in the left-right direction. The UL combustion test apparatus A is positioned on the right side of the table 10, and the cone calorimeter test apparatus. B is positioned adjacent to the left side, and the table 10 is moved to the left side so that the UL combustion test apparatus A faces the center of the chamber 1, that is, the window 3, and the table 10 is moved to the right side. By doing so, the cone calorimeter test apparatus B faces the center of the chamber 1, that is, the window 3. Thus, the UL combustion test is performed when the UL combustion test apparatus A is positioned so as to face the window 3, and the cone calorimeter method test is performed when the cone calorimeter test apparatus B is positioned so as to face the window 3. It is. That is, the UL combustion test and the cone calorimetry test can be performed separately.

The UL combustion test apparatus A mainly has a burner support mechanism and a test piece support mechanism installed on the table 10. The burner support mechanism supports the burner 20 so as to move the burner 20 in the left-right direction and the up-down direction.
The burner 20 is fixed to a vertical burner support substrate 21 by a burner fixing member 22, and the burner fixing member 22 has a hole 23 through which a fallen specimen is passed. A vertical burner support substrate 21 is mounted on a burner support base described later so as to be movable in the left-right direction. A support substrate 13 erected vertically is provided on the table 10, and a pair of vertical guide columns 11, 11 are provided between horizontal plates 14, 14 disposed above and below the support substrate 13, and the vertical guide columns 11, 11 are guided. A burner support 12 is provided which is supported so as to be movable up and down. For this purpose, a screw shaft 15 is provided in parallel with the vertical guide columns 11, 11 by screwing onto the burner support 12, and the lower end of the screw shaft 15 is connected to a pulse motor 16 fixed below the table 10. It is. That is, the pulse motor 16 is actuated by detection of a laser sensor, which will be described later, and the burner 20 is moved upward following the combustion of the test piece.

The burner support substrate 21 is configured to bend support portions 24, 24 by bending the left and right ends backward, and a pair of horizontal guide rods 25, 25 are connected to the left and right bend support portions 24. A pair of guide rods 25, 25 are passed through the forward projecting portion 17 of the burner support 12. An air cylinder 26 is provided on the burner support 12 in parallel with the guide rods 25, 25, and the tip of the operating rod 27 is connected to the bent support 24 on the right side of the burner support substrate 21 via a connecting member 28. is there. With this structure, the air cylinder 26 is operated so that the burner 20 can be automatically moved in the left-right direction, and flame contact and flame separation are automatically performed on the test piece.
The burner support substrate 21 is provided with three types of burner support attachment holes 29, 29 ′, 29 ″, and the attachment holes 29, 29 for attaching the burner 20 to the vertical position and the burner 20 are inclined by 20 ° from the vertical position. Mounting holes 29 'and 29 "for mounting the mounting holes 29' and 29 'and the burner 20 to be inclined by 45 ° are provided. To provide mounting holes 29" and 29 "for mounting the burner 20 by tilting 45 ° The burner support substrate 21 is provided with an inclined edge 46 that rises at an angle of 45 °.

  A test piece support mechanism is provided adjacent to the burner support mechanism. In this test piece support mechanism, a support column 30 is provided upright on the table 10, an upright plate 31 is provided at the upper end of the support column 30, and a support arm 33 that supports the test piece 32 is pivotally supported 34 on the standup plate 31. It is. In this embodiment, the test piece 32 is supported by the clip 35 at the tip of the support arm 33, and the test piece 32 suspended vertically is positioned directly above the burner 20. A load cell 36 is disposed on the base end of the support arm 33, and the support arm 33 is supported by a detection needle 37 of the load cell 36 so as to be positioned horizontally. That is, the load cell 36 is used to measure the weight change of the test piece.

The support substrate 13 of the burner support base 12 is provided with a support portion 39 for standingly supporting a pair of sensor support struts 38 at the rear thereof. The sensor support struts 38 are vertically moved in conjunction with the burner support base 12. It is supposed to work. At the upper end of the sensor support column 38, a sensor support arm 40 is provided so as to protrude obliquely slightly downward from the horizontal direction, and laser sensors 41 and 41 are provided at the base end and the distal end of the sensor support arm 40. The laser beam is aligned with the lower end of the test piece 32. That is, the length of the test piece whose length is changed by burning by the laser sensors 41, 41 is detected, and the burner 20 is automatically followed. Further, an ultraviolet sensor 42 is provided above the sensor support column 38. That is, the after-flame time after the flame from the test piece 32 of the burner 20 is detected by the ultraviolet sensor 42.
In addition, a notch 43 is formed in the table 10 immediately below the burner 20 of the UL combustion test apparatus A in the test position, and the absorbent cotton mounting table 44 is disposed immediately below the burner 20, and ultraviolet light is disposed at a side position thereof. A sensor 45 is provided to automatically measure whether or not the absorbent cotton is ignited due to a drop of a test piece burned by a combustion test.

On the left side of the table 10, a cone calorimeter test apparatus B is provided adjacent to the UL combustion test apparatus A. A heat radiation heater 50 is arranged so as to be positioned immediately below the exhaust hood 6 of the chamber 1 when the table 10 is moved rightward. The heat radiation heater 50 has a truncated conical shape as shown in the figure, and is open at the top and bottom.
Guide rails 51, 51 are fixed on the table 10 in parallel in the front-rear direction, and are placed on the guide rails 51, 51, and can be moved back and forth along the guides 51, 51. 52 is provided, and a pair of parallel columns 53 and 53 are erected on the support base 52.
A heater support plate 54 is provided so as to project forward from the upper ends of the pair of columns 53, 53, and a heat radiation heater 50 is attached and fixed below the heater support plate 54. A portion of the heater support plate 54 that coincides with the upper open portion of the heat radiation heater 50 is provided with a hole 55 and opened.
An air cylinder 56 is provided in front of the right side of the support base 52, and by operating the air cylinder 56, the heat radiation heater 50 is moved back and forth, and moved backward to keep the heat radiation away from a test piece to be described later. is there.

  A test piece tray 57 is provided on a tray support column 58 immediately before the heat radiation heater 50, that is, immediately below the test position, and the lower end of the tray support column 58 passes through an opening 59 provided in the table 10. Positioned below the table 10, the lower end of the tray support column 58 is supported by a load cell 60 provided below the table 10. With this configuration, a change in weight due to combustion of the test piece is automatically measured.

A support plate 61 projecting leftward is provided at the lower part of the heat radiation heater 50, a rotary actuator 62 is provided on the support plate 61, and two spark rods rotated 90 ° by the operation of the rotary actuator 62. 63 is provided. The two spark rods 63 are L-shaped and are usually located away from the heat radiation heater 50 as shown in FIG. 4 and are rotated 90 ° when the specimen on the specimen tray 57 is ignited. It moves so that its tip reaches the position of the test piece from the upper and lower openings of the thermal radiation heater 50 and performs an ignition action.
In addition, a support plate 64 that protrudes to the right below the thermal radiation heater 50 is provided, a rotary actuator 65 is provided on the support plate 64, and a shutter 66 that is rotated by the operation of the rotary actuator 65 is provided. The shutter 66 opens and closes the lower opening of the heat radiation heater 50.
Furthermore, a data processing device 70 is provided in the chamber 1, and the measurement values of each test are taken in and the test results are automatically processed. Similarly, the test images taken with the camera are captured.

  The operation of the combustion tester of the present invention configured as described above will be described below. When performing the UL combustion test, the test is performed by placing the position shown in the drawing, that is, the table 10 on the left side of the chamber 1 and positioning the UL combustion test apparatus A at the center of the chamber 1. Next, when a cone calorimetry test is performed, the table 10 is manually moved to the right to position the cone calorimeter test apparatus B at the center of the chamber 1 and at a position facing the window 3 to perform the test. .

First, the UL combustion test apparatus A is positioned at the center of the chamber 1 to perform a UL combustion test. At this position, the burner 20 is located immediately below the test piece 32, and the combustion test of the test piece 32 is performed by igniting the burner 20. Here, the flame contact and flame removal of the burner 20 with respect to the test piece 32 are performed by operating the air cylinder 26 and moving the burner support 12 that supports the burner 20 in the left-right direction.
Next, when the lower end of the test piece 32 is burned, the burning part moves upward. This upward movement of the combustion part is detected by laser sensors 41 and 41 supported by the sensor support arm 40, and the signal is sent to the pulse motor 16. As a result, the pulse motor 16 is actuated to rotate the screw shaft 15 to raise the burner support 12 and follow the burner 20 according to the combustion of the test piece 32.
Then, when the burner 20 is moved to the right and the flame is removed from the test piece 32, the test piece 32 becomes afterflame. This afterflame time is detected by the ultraviolet sensor 42 and the afterflame time is automatically measured. . Furthermore, when the burning part of the test piece 32 falls, it falls on the absorbent cotton mounting table 44 and ignites the absorbent cotton. The ignition is also automatically measured by the ultraviolet sensor 45.

Next, when the test piece 32 burns, its weight decreases and changes. This weight change causes the support arm 33 of the test piece 32 to be tilted upward about the shaft support 34. This change is detected by the load cell 36 and the weight change of the test piece 32 is automatically measured.
Further, the heat generation rate of the test piece 32 is automatically measured in the exhaust hood 6 by an oxygen consumption measuring method.

Next, the operation of the cone calorimeter test apparatus B will be described. In order to operate the cone calorimeter test apparatus B, the table 10 is manually moved to the right, and the cone calorimeter test apparatus B is positioned at the center of the chamber 1, that is, at a position facing the window 3.
First, the thermal radiation heater 50 is kept in a working state, and the test piece is placed on the test piece tray 57. In this state, the spark bar 63 is rotated 90 ° to ignite the test piece. Since the weight of the test piece changes when the test piece burns, the tray support column 58 that supports the test piece tray is slightly moved down, and the load cell 60 detects the change and automatically detects the change in the weight of the test piece. Measure automatically.
Next, the heat generation rate of the test piece is automatically measured in the exhaust hood 6 of the chamber 1 by an oxygen consumption measuring method.
Next, the support 50 of the heat radiation heater 50 is moved rearward by the air cylinder 56 so that the heat radiation is kept away, and the weight change and the heat generation rate of the test piece are automatically measured in this state.

The UL combustion tester according to claims 20 to 30 relates to a single UL combustion tester in which only the UL combustion test apparatus A is installed in the chamber 1. The UL combustion test apparatus A for a combustion tester according to claims 20 to 30 performs the same configuration and operation as the UL combustion test apparatus A for a combustion tester according to claims 4 to 13. That is, a single UL combustion test apparatus A is configured.
Similarly, the cone calorimeter test machine according to claims 31 to 37 relates to a single cone calorimeter test machine in which only the cone calorimeter test apparatus B is installed in the chamber 1. The cone calorimeter test apparatus B of claims 31 to 37 performs the same configuration and operation as the cone calorimeter test apparatus B of claims 14 to 19. That is, a single cone calorimeter test apparatus B is constructed.

The front view which shows the external appearance of this invention combustion tester. The front view of the state which removed the chamber of this invention combustion tester. The top view of the state which removed the chamber similarly. The front view which expanded and showed the UL combustion test apparatus and the cone calorimeter test apparatus. The top view which expanded and showed similarly. The expanded side view of a UL combustion test apparatus.

Explanation of symbols

A UL combustion test device B Cone calorimeter test device 1 Chamber 2 Air intake 3 Window 4 Door 5 Hinge structure 6 Exhaust hood 7 units 8 Standing portion 9 Guide rod 10 Table 11 Vertical guide column 12 Burner support table 13 Support substrate 14 Horizontal plate 15 Screw shaft 16 Pulse motor 17 Front protrusion 20 Burner 21 Burner support substrate 22 Burner fixing member 23 Hole 24 Bending support 25 Guide rod 26 Air cylinder 27 Actuation rod 28 Connecting material 29, 29 ', 29 "Mounting hole DESCRIPTION OF SYMBOLS 30 Prop 31 Standing plate 32 Test piece 33 Support arm 34 Axis support 35 Clip 36 Load cell 37 Detection needle 38 Sensor support support 39 Support part 40 Sensor support arm 41 Laser sensor 42 Ultraviolet sensor 43 Notch 44 Absorbent cotton mounting base 45 Ultraviolet sensor 4 6 Inclined Edge 50 Heat Radiation Heater 51 Guide Rail 52 Support Base 53 Support 54 Heater Support Plate 55 Hole 56 Air Cylinder 57 Specimen Tray 58 Tray Support Post 59 Opening 60 Load Cell 61 Support Plate 62 Rotary Actuator 63 Spark Rod 64 Support Plate 65 Rotary actuator 66 Shutter 70 Data processing device

Claims (17)

The chamber has an air intake, an exhaust hood, and a front window. A transparent door can be opened and closed in this window, and a table can be moved in the left-right direction on a table in the same chamber. On the table, a UL combustion test device and a small test piece cone calorimeter method test device are installed adjacent to each other, and the table is moved in the horizontal direction to separate the UL combustion test device and the cone calorimeter method test device. A combustion tester that can be arranged at a position facing the window, and that allows a UL combustion test and a cone calorimetry test to be performed separately in the same chamber. The combustion tester according to claim 1 , wherein the flame tester automatically performs flame contact and flame release with a burner of the UL combustion test apparatus. The combustion tester according to claim 2 , wherein the automatic flame contact and flame release of the burner are performed by reciprocating movement of an air cylinder of a burner support base. The combustion tester according to claim 1 , wherein the burner is caused to automatically follow the vertical direction in accordance with a test piece whose length changes due to combustion in a vertical combustion test of a test piece of the UL combustion test apparatus. A burner support base that detects the change in length of a test piece whose length changes due to combustion using a laser sensor, operates a pulse motor in response to the detection signal, rotates a vertical screw shaft, and is screwed onto the screw shaft The combustion tester according to claim 4 , wherein the burner is caused to automatically follow in the vertical direction by moving up. The combustion tester according to claim 1 , wherein in the vertical combustion test of the test piece of the UL combustion test apparatus, the afterflame time after the flame release to the test piece and the presence / absence of ignition of the absorbent cotton by the fallen object are automatically measured. The combustion tester according to claim 6 , wherein the afterflame time after the flame is removed from the test piece and whether the absorbent cotton is ignited by falling objects are automatically measured by an ultraviolet sensor. The combustion tester according to claim 1 , wherein a weight change of the test piece is automatically measured in a vertical combustion test of the test piece of the UL combustion test apparatus. A column is erected on the table adjacent to the burner support, and an upright plate that supports a support arm that supports the test piece is provided at the upper end of the column, and the test piece is supported at the tip of the support arm. 9. The combustion tester according to claim 8 , wherein the load cell is positioned immediately above the burner, a load cell is disposed on a proximal end of a support arm that is pivotally supported by the upright plate, and the support arm is supported by a detection needle of the load cell. The combustion tester according to claim 1 , which automatically measures a heat generation rate of a specimen to be burned by a UL combustion test apparatus. The combustion tester according to claim 10 , wherein the combustion gas of the burning test piece is collected in an exhaust hood of a chamber and the heat generation rate is automatically measured by an oxygen consumption measuring method. The combustion tester according to claim 1 , wherein a change in weight of the test piece is automatically measured in a cone calorimetry test of the small test piece. A support column standing on the table is provided, and a heater support plate is provided overhanging the support column, a heat radiation heater is provided on the heater support plate with the upper part opened, and a test piece tray is disposed immediately below the heat radiation heater. The combustion tester according to claim 12 , wherein the test piece tray is provided on a tray support column and the lower end of the tray support column is supported by a load cell mounted on a table. The combustion tester according to claim 1 , which automatically measures a heat generation rate of a burning test piece in a cone calorimeter method test of a small test piece. The combustion tester according to claim 14 , wherein the combustion gas of the burning test piece is collected in an exhaust hood of a chamber and the heat generation rate is automatically measured by an oxygen consumption measuring method. The combustion tester according to claim 1 , wherein, in a cone calorimeter method test of a small test piece, after the test piece is burned, the heat radiation is kept away to automatically measure the weight change and the heat generation rate of the test piece. The support provided by extending the heater support plate is erected on a support base that can move back and forth on the table, and the support base is reciprocated by an air cylinder. The combustion tester according to claim 16 , wherein the radiant heater is moved backward to keep away the heat radiation.

Images