JP4332729B2 - High temperature indoor observation equipment - Google Patents

Description

  The present invention relates to a high-temperature indoor observation apparatus, and more particularly to a high-temperature indoor observation apparatus that observes the inside of a high-temperature room such as an electric dust collector that is maintained in a high-temperature atmosphere having a maximum temperature of about 150 ° C. and adjusted to a negative pressure.

  Conventionally, when incinerating waste, etc., a dust collector that removes dust such as incineration ash scattered in the exhaust gas generated in the incineration process and then exhausts it to the atmosphere is provided for electrical dust collection Many electric dust collectors are used. In an electric dust collector, in order to maintain a high dust collection capacity, it is necessary to periodically inspect facilities such as discharge electrode plates and dust collection electrode plates installed indoors.

  However, since high temperature exhaust gas flows into the electrostatic precipitator, the room is kept in a high temperature atmosphere with a maximum temperature of about 150 ° C. Therefore, the conventional periodic inspection of the electrostatic precipitator has generally been carried out by stopping the operation of the previous process and lowering the room temperature before entering the room and visually checking the room.

  In addition, observation ports for observation are provided on the upper and side surfaces of the casing, which is the outer wall of the electrostatic precipitator, and a window with openable doors and heat-resistant glass is installed at each observation port and observed visually from the outside. The method to do is also adopted.

Further, as in Patent Document 1, a tube-like monitoring device having a light collecting part at the front end and a detector at the rear end is inserted into each observation port provided in the electrostatic precipitator, and the room is viewed from the outside. Observation methods have been proposed.
JP-A-6-201268

  However, in the method of observing the internal situation using the door, the door must be opened at the time of observation. In addition, the observation method using a heat-resistant glass window makes it difficult to observe the internal situation because dust adheres to the inner surface of the window, so the inner surface of the window must be cleaned regularly. was there.

  In Patent Document 1, the above-described problem can be solved. However, since only fixed-point observation can be performed at the place where it is installed, there is a drawback in that the range that can be observed is limited. In addition, in order to make it a structure that can withstand higher temperatures than the interior of the electrostatic precipitator, since it is configured with a large number of members and devices, there are problems in cost and workability.

  The present invention has been made in view of such circumstances, and can be easily installed without a particularly complicated structure, and can stably observe a desired location in a high-temperature room from the outside over a long period of time. An object of the present invention is to provide a high-temperature indoor observation apparatus that can perform the above-described operation.

  In order to achieve the above object, the invention according to claim 1 is a high temperature indoor observation device for observing the inside of a high temperature chamber maintained at a negative pressure from the outside, with respect to an observation port formed on the wall surface of the high temperature chamber. A cylindrical observation device body that is inserted with the distal end thereof at the top and shields the observation port by the proximal end portion, and a part of the proximal end portion is opened, and the distal end portion of the observation device body An illuminating means for illuminating the interior of the high temperature chamber, an observing section provided with an imaging means for imaging the interior of the high temperature chamber illuminated by the illuminating means, and the observing section provided in the main body of the observing apparatus. Is supported on the observation device main body, and is provided on the observation apparatus main body. Power transmission that transmits operating force to the support And a display unit that is provided outside the high temperature chamber and displays an image captured by the imaging unit, and the outside air from the high temperature chamber passes through the internal cavity from the base end of the observation apparatus body. The observation unit is cooled by being supplied to the observation unit.

  According to the present invention, when observing the inside of a high temperature chamber maintained at a negative pressure, such as an electric dust collector, if the observation port provided on the outer wall of the high temperature chamber is inserted from the tip of the observation device main body, Since the end is in close contact with the observation port due to a pressure difference between the inside and outside of the room, the observation port is installed in a shielded state. As a result, observation can be performed without affecting the high temperature atmosphere in the room, and the observation apparatus main body can be installed in a stable state.

  Next, when the operation means is operated while confirming with the display means provided outside, the operation is transmitted as power to the support part by the power transmission part, and the observation part is moved in the vertical and horizontal directions via the support part. be able to. Therefore, a display that connects the observation unit in the room by moving the observation unit in the direction of a desired observation point from outside the room, illuminates and images the room by the imaging unit and the illumination unit of the observation unit, and connects the captured image to the observation unit It can be confirmed from outside by means. Thereby, the desired location in the room which is a high temperature atmosphere can be observed easily and reliably from the outside.

  At this time, since the observation unit is installed in a high temperature atmosphere, there is a possibility that the imaging unit and the illumination unit of the observation unit may be damaged by the heat. In the high-temperature indoor observation apparatus of the present invention, the inside of the observation apparatus main body has a hollow structure, and the base end is open. Therefore, if the high-temperature room observation device is installed at the observation port of the high-temperature room, the inside of the high-temperature room is maintained at a negative pressure, so the outside air flows from the base end of the main body of the observation device due to the pressure difference inside and outside the room. It is supplied to the observation section through the internal cavity of the apparatus body. Therefore, since the observation unit in a high temperature atmosphere can be cooled by the supplied outside air, it is possible to prevent the observation unit from being damaged by heat. In addition, the imaging means and the illumination means that do not have heat resistance can be employed in the high-temperature indoor observation apparatus of the present invention, and no power is required to supply the outside air to the observation unit, so that the high-temperature indoor observation apparatus is required. Cost can be greatly reduced.

  In addition, it is preferable that the base end part of the observation apparatus main body is provided with a window member capable of adjusting the opening degree of the base end opening of the observation apparatus main body. Thereby, since the quantity of the external air which flows in by a window member can be adjusted, efficient cooling can be performed.

  Moreover, it is preferable that the observation part and the support part are covered with a flexible hood connected to the observation apparatus body. Thereby, the outside air can be efficiently supplied to the observation unit and the support unit to be cooled without hindering the movement of the observation unit by the support unit.

  According to a fourth aspect of the present invention, the observation apparatus main body according to any one of the first to third aspects is configured with a length adjustment structure capable of adjusting the length of the observation apparatus main body. Features. As a result, the distance from the observation port to the observation unit can be freely adjusted, so that the room can be observed in a wider range.

  According to a fifth aspect of the present invention, in the length adjusting structure according to the fourth aspect, the observation apparatus main body is composed of a plurality of divided members, and the observation apparatus main body is selected by selecting the number of connected divided members. The length is adjustable.

  According to the fifth aspect, the length of the observation apparatus main body can be adjusted to an arbitrary length simply by changing the number of connected divided members constituting the observation apparatus main body. The distance can be easily adjusted to the desired length.

  A sixth aspect of the invention is characterized in that the observation unit according to any one of the first to fifth aspects includes a cleaning unit that removes dirt attached to the imaging unit and the illumination unit.

  According to the sixth aspect, when the room is observed for a long time, dust or the like floating in the room adheres to the image pickup means and the illumination means of the observation unit and becomes dirty, so that the image picked up in the room is disturbed. Therefore, by providing a cleaning mechanism in the observation unit to remove dirt attached to the imaging unit and the illumination unit, the room can be observed with a stable image even if the room is observed over a long period of time.

  According to a seventh aspect of the present invention, as the cleaning means according to the sixth aspect, a scavenging path for exhausting the outside air supplied through the observation apparatus main body after blowing it to the lens surfaces of the imaging means and the illuminating means. It is formed.

  According to the seventh aspect, by providing a scavenging path as a cleaning means, it is possible to always blow off dirt such as dust adhering to the lens surface by using the flow of outside air supplied for cooling. Stable indoor imaging can be performed without cost.

  The invention described in claim 8 is characterized in that as the cleaning means described in claim 6, a wiper for wiping the lens surfaces of the image pickup means and the illumination means is provided. Accordingly, dirt such as dust attached to the lens surface can be wiped off with the wiper, so that stable indoor imaging can be performed over a long period of time.

  As described above, according to the high-temperature indoor observation apparatus according to the present invention, the imaging means and the illumination means are operated in the vertical and horizontal directions while cooling and scavenging with the outside air flowing in due to the differential pressure inside and outside the room. Therefore, the room maintained in a high temperature atmosphere can be observed stably from the outside for a long time.

  Hereinafter, preferred embodiments of a high-temperature indoor observation apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a configuration of a high-temperature indoor observation apparatus 10 according to an embodiment of the present invention.

  As shown in the figure, the high-temperature indoor observation device 10 is an observation box 12 as an observation unit, an observation device main body 14, a shielding lid 16 as a base end, an operation panel 18 as an operation means, and a display means. And a monitor 20.

  The observation box 12 includes a CCD camera 22 that is an imaging unit and two lights 24 and 24 that are illumination units, and is formed by being covered with a heat-resistant cover. Further, the CCD camera 22 and the lights 24, 24 are provided with wipers 25, 25... As cleaning means, and dirt attached to the lens surfaces of the CCD camera 22 and the lights 24, 24 by the wipers 25, 25. Wiped off.

  The observation apparatus main body 14 is a rectangular cylindrical member, and is preferably made of a heat-resistant material, and for example, SUS or the like is used. The observation apparatus main body 14 is configured by connecting a front observation apparatus main body 14a and a rear observation apparatus main body 14b, which are divided members, so as to be divided in the longitudinal direction. The front and rear observation apparatus main bodies 14a and 14b each have a built-in vertical rotation shaft 26 and 26 that can rotate in the vertical direction and a horizontal rotation shaft 28 and 28 that can rotate in the left and right directions. . Each of the rotary shafts 26, 28 has outer gears 30a, 30a,... And inner gears 30b, 30b,.

  A support portion 32 is provided between the observation box 12 and the observation apparatus main body 14. The support portion 32 is connected to the observation box 12 by the vertical rotation shaft 26 provided with the inner gear 30b, and is connected to the front observation apparatus main body 14a by the horizontal rotation shaft 28 provided with the inner gear 30b. Thereby, the observation box 12 is connected to the observation apparatus main body 14 so as to be movable in the vertical and horizontal directions indicated by the white and black arrows.

  The shielding lid 16 is a plate-like member disposed at the base end portion of the rear observation apparatus main body 14b, and is formed with a larger area than the observation port for observation. The inner surface of the shielding lid 16 is preferably made of a cushioning material such as rubber. In addition, two handles 34 and 34 are provided on the outer surface of the shielding lid 16 to facilitate insertion and extraction of the observation box 12.

  The operation panel 18 is fixedly installed on the outer surface of the shielding lid 16, the left and right operation levers 36 are installed on the upper side, and the upper and lower operation levers 38 are installed on the side surfaces. The left / right operation lever 36 is connected to a left / right rotation shaft 28 attached with an inner gear 30b installed in the operation panel 18. The up / down operation lever 38 is connected to the up / down rotation shaft 26 attached to the inner gear 30b installed in the operation panel 18.

  In the high-temperature indoor observation device 10, a chain 40 is suspended between an inner gear 30b connected to the left / right operation lever 36 and an inner gear 30b of the left / right rotation shaft 28 installed in the rear observation device main body 14b. Further, a chain 40 is suspended between an outer gear 30a of the left-right direction rotating shaft 28 installed in the rear observation device main body 14b and an outer gear 30a of the left-right direction rotating shaft 28 installed in the front observation device main body 14a. Yes. Furthermore, a chain 40 is suspended between an inner gear 30b of the left-right direction rotating shaft 28 installed in the front observation apparatus main body 14a and an inner gear 30b of the left-right direction rotating shaft 28 connecting the support portion 32. As a result, a power transmission means for moving the observation box 12 in the left-right direction indicated by the black arrow through the support portion 32 by operating the left-right operation lever 36 is formed.

  On the other hand, in the high-temperature room observation apparatus 10, the chain 40 is suspended between the inner gear 30b connected to the vertical operation lever 38 and the inner gear 30b of the vertical rotation shaft 26 installed in the rear observation apparatus main body 14b. . Further, the chain 40 is suspended between the outer gear 30a of the vertical rotation shaft 26 installed in the rear observation device main body 14b and the outer gear 30a of the vertical rotation shaft 26 installed in the front observation device main body 14a. ing. Further, a chain 40 is suspended between an inner gear 30b of the vertical rotation shaft 26 installed in the front observation apparatus main body 14a and an inner gear 30b of the vertical rotation shaft 26 that connects the support portion 32. As a result, a power transmission means for moving the observation box 12 in the vertical direction indicated by the black arrow through the support portion 32 by operating the vertical operation lever 38 is formed.

  Further, the operation panel 18 is provided with a cable 42 connecting the CCD camera 22 and the light 24 and the monitor 20 installed outside, and an image captured by the CCD camera 22 is installed in the cable 42. To be displayed on the monitor 20. The monitor 20 is provided with a camera controller 21 as one of operation means. By operating the camera controller 21, the operations of the CCD camera 22 and the lights 24 and 24 such as telephoto and focus adjustments during illumination and the intensity of illumination can be operated.

  FIG. 2 is a front view of the operation panel 18 of the high temperature indoor observation apparatus 10 according to the embodiment of the present invention as viewed from the outside.

  An opening 44 is formed in the center of the operation panel 18, and a window member 46 slidable in the vertical direction is installed on the upper surface of the opening 44. Therefore, the degree of opening and closing of the window member 46 is adjusted by sliding the window member 46 up and down and fixing it with the attached cocks 48 and 48.

  As shown in FIG. 1, the high-temperature indoor observation device 10 is covered with a flexible hood 50 from the observation box 12 to the shielding lid 16. The flexible hood 50 is composed of a heat-resistant and flexible hood-like member. For example, a heat-resistant cloth or bellows is used.

  FIG. 3 is a cross-sectional view of a part of the high-temperature indoor observation apparatus 10 according to the embodiment of the present invention as viewed from an enlarged side surface.

  The opening 50 a of the flexible hood 50 is formed with scavenging means having a shape in which the tip on the observation box 12 side contracts toward the lens surfaces of the CCD camera 22 and the lights 24 and 24.

  Next, the operation of the high-temperature indoor observation apparatus 10 according to the embodiment of the present invention configured as described above will be described.

  FIG. 4 is an explanatory view for explaining the work of observing the interior of the electrostatic precipitator 90 using the high-temperature indoor observation apparatus 10 according to the embodiment of the present invention, in which a part of the casing 92 of the electrostatic precipitator 90 is cut out and shown. ing. 4A shows the case of observation from the upper part of the electrostatic precipitator 90, and FIG. 4B shows the case of observation from the lower part of the exhaust port 94 of the electric precipitator 90.

  As shown in FIG. 4, when observing the room 90 </ b> A of the electrostatic precipitator 90, the observation room 96 close to the observation point is opened, and then the high-temperature room observation apparatus 10 is held by the handles 34 and 34 of the shielding lid 16. It is inserted into the room 90 </ b> A from the observation box 12 side and installed with the shielding lid 16 in contact with the observation port 96. The electric dust collector 90 during operation is maintained in a high temperature atmosphere by maintaining the room 90A at a negative pressure, and prevents dust floating in the room 90A from flowing out to the outdoor 90B. Accordingly, a pressure difference is generated between the indoor 90A and the outdoor 90B, and the shielding lid 16 can be brought into close contact with the observation port 96 and shielded by the pressure difference. Thereby, it is possible to prevent the temperature of the room 90A from being lowered at the time of observation, and to install the high temperature indoor observation apparatus 10 in a stable state.

  When the CCD camera 22 and the lights 24, 24 of the high-temperature indoor observation apparatus 10 thus installed are operated by the operation of the camera controller 21, the dust collecting plates 98 in the room 90A of the electric dust collector 90 illuminated by the lights 24, 24 are provided. 98, the installation status of the discharge frames 100, 100, etc. can be captured by the CCD camera 22, and the captured image can be displayed on the monitor 20 installed in the outdoor 90B. It can be observed from.

  Further, by operating the up / down operation lever 38 and the left / right operation lever 36 of the operation panel 18, the angles of the CCD camera 22 and the lights 24, 24 can be moved up / down / left / right. Thereby, the room 90A around the observation port 96 can be observed over a wide range. Moreover, since it can image from various angles between the dust collecting plates 98, 98 ... and the discharge frames 100, 100 ... formed in a relatively narrow space, more accurate observation can be performed.

  When the high-temperature indoor observation apparatus 10 is installed and the electric dust collector 90 is observed for a long time, the observation box 12 and the observation apparatus main body 14 are inserted into the room 90A, and thus are heated by the high-temperature atmosphere in the room 90A. . Therefore, by opening the window member 46 provided on the operation panel 18, the outside air flows into the opening 44 due to a pressure difference between the indoor 90A and the outdoor 90B, passes through the inside of the observation apparatus main body 14, and passes through the observation apparatus main body 14. After being cooled, it was supplied to the observation box 12 through the flexible hood 50.

  FIG. 5 is a graph in which the cooling effect in the high-temperature indoor observation apparatus 10 according to the embodiment of the present invention is investigated. The graph indicated by a dotted line indicates the temperature at each location of the observation box 12 when the window member 46 is closed. The graph shown by the solid line shows the temperature change at each location of the observation box 12 when the window member 46 is opened. Here, ● indicates the temperature at the top of the CCD camera 22, ▲ indicates the temperature in the observation box 12, and ■ indicates the temperature of the back surface of the light 24.

  Referring to the graph of FIG. 5, in the state where the window member 46 is closed, the temperature of the observation box 12, the CCD camera 22, and the light 24 rises with time, and within 5 minutes the general CCD camera 22 It exceeded 40 ° C, which is the limit temperature for heat resistance. On the other hand, in the state in which the window member 46 is opened, changes in each temperature with time are not observed, and the inside of the observation box 12 and the CCD camera 22 can be maintained at substantially the same temperature as the outside air temperature. Therefore, since the CCD camera 22 and the lights 24 and 24 in the observation box 12 can be effectively cooled by the outside air, each member and device of the observation apparatus main body 14, the CCD camera 22, the lights 24 and 24, etc. It is possible to prevent the inserted device and member from being damaged by the heat in the room 90A. In addition, effective cooling can be performed with a simple structure without the need for a power source for cooling, and it is not necessary to use expensive CCD cameras 22 and lights 24 and 24 having heat resistance. The cost required for the high temperature indoor observation apparatus 10 can be reduced.

  Further, when the high-temperature indoor observation device 10 is installed and the indoor observation is performed for a long time, dust floating in the room may adhere to the lens surfaces of the CCD camera 22 and the lights 24 and 24 exposed on the outer surface. is there. If the lens surfaces of the CCD camera 22 and the lights 24 and 24 become dirty and cloudy in this way, it becomes difficult to capture the room 90A with a clear image, and therefore the room 90A is accurately observed from the monitor 20 in the outdoor 90B. Can not do.

  Therefore, in the high-temperature indoor observation apparatus 10 of the present invention, the opening of the flexible hood 50 is formed to contract with respect to the lens surfaces of the CCD camera 22 and the lights 24 and 24 as shown in FIG. . Therefore, as indicated by the black arrows in FIG. 3, the outside air taken in from the opening 44 due to the pressure difference between the indoor 90 </ b> A and the outdoor 90 </ b> B and passed through the inside of the observation apparatus main body 14 is the lens of the CCD camera 22 and the lights 24 and 24. After being sprayed on the surface, the air is exhausted into the room 90A. By always spraying this outside air, it is possible to prevent dust and the like floating in the room 90A from adhering to each lens surface, so that it is possible to prevent image distortion caused by dirt on each lens surface. In this way, the flow of outside air taken in by the pressure difference is used to prevent the lens surface from becoming dirty, so that long-term stable observation is possible without requiring a lot of cost and complicated structure for cleaning the lens surface. Can be done.

  Furthermore, the observation device main body 14 of the high-temperature room observation device 10 has a structure that can be separated into a front observation device main body 14a and a rear observation device main body 14b, as shown in FIG. Therefore, the front and rear observation device bodies 14a and 14b are separated after the chains 40, 40... Suspended from the outer gears 30a, 30a. Next, when the same-shaped divided member 50 is connected between the front and rear observation devices 14a, 14b, and the chains 40, 40 ... are hung on the outer gears 30a, 30a ... and the inner gears 30b, 30b ... Like the high-temperature indoor observation apparatus 10 shown in FIG. 6B, the length in the longitudinal direction can be extended while the observation box 12 can be moved in the vertical and horizontal directions. Further, if the divided members 52, 52... Of various lengths are prepared and the divided members 52 to be connected can be changed according to the situation, the situation of the room 90A of the electrostatic precipitator 90 can be changed from one observation port 96. It can be observed over a wider area.

  In the high-temperature indoor observation apparatus 10 described above, the number, shape, material, and the like of each member and apparatus used are not particularly limited.

  As an example of the situation in which the high-temperature indoor observation apparatus 10 is used, the indoor observation of the electric dust collector has been described as an example, but the present invention is not particularly limited. If it is a high temperature room where the maximum temperature is a high temperature atmosphere of about 150 ° C. and is maintained at a negative pressure, the high temperature room observation device 10 of the present invention can be suitably used.

  Further, although an example in which observation ports 96, 96... Are provided in advance when performing observation with the electrostatic precipitator 90, the present invention is not particularly limited. If the observation port 96, 96... Does not exist in the electrostatic precipitator 90, if the observation port 96 and the observation device main body 14 are provided with holes in the casing 92 where observation is desired, The room 90A can be observed using the high-temperature indoor observation apparatus 10 of the present invention. Therefore, in the electrostatic precipitator 90, the area required for forming the observation port 96 can be minimized, so that the room 90A can be observed without affecting the high temperature atmosphere of the electrostatic precipitator 90, and the observation port 96 can be formed. Costs required can be reduced.

  In the high-temperature indoor observation apparatus 10, since the chains 40, 40,... Are suspended from the outer gears 30a, 30a, and the inner gears 30b, 30b, the up / down operation lever 38 and the left / right operation installed on the operation panel 18. Although the observation box 12 can be moved up and down and left and right by operating the lever 36, it is not particularly limited. The CCD camera 22 and the lights 24 and 24 may be installed on a camera platform that can be moved in the vertical and horizontal directions, and a motor that is a power source of the camera platform may be driven by operating the operation panel 18. Moreover, as the chain 40, only the part used for rotation of the outer gears 30a, 30a ... and the inner gears 30b, 30b ... may be configured by the chain 40, and the other parts may be connected by wires.

The perspective view which showed the structure of the high temperature indoor observation apparatus which is embodiment of this invention The front view which looked at the operation panel of the high temperature indoor observation apparatus which is embodiment of this invention from the outer side Explanatory drawing explaining the operation | work which observes the room | chamber interior of an electrostatic precipitator using the high temperature indoor observation apparatus which is embodiment of this invention The graph which investigated the cooling effect in the high temperature indoor observation apparatus which is embodiment of this invention Side sectional view showing the flow of outside air in the observation box of the high temperature indoor observation apparatus of the present invention Explanatory drawing explaining the length adjustment mechanism of the high temperature indoor observation apparatus of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... High temperature indoor observation apparatus, 12 ... Observation box, 14 ... Observation apparatus main body, 14a ... Front observation apparatus main body, 14b ... Rear observation apparatus main body, 16 ... Shielding lid, 18 ... Control panel, 20 ... Monitor, 21 ... Camera Controller, 22 ... CCD camera, 24 ... Light, 26 ... Vertical rotation axis, 28 ... Horizontal rotation axis, 30a ... Outer gear, 30b ... Inner gear, 32 ... Support part, 34 ... Handle, 36 ... Left / right control lever, 38 ... Vertical control lever, 40 ... Chain, 42 ... Cable, 44 ... Opening, 46 ... Window member, 48 ... Cock, 50 ... Flexible hood, 50a ... Opening, 52 ... Dividing member, 90 ... Electric dust collector, 92 ... casing, 94 ... exhaust port, 96 ... observation port, 98 ... dust collecting plate, 100 ... discharge frame

Claims (8)

In a high-temperature room observation device that observes the inside of a high-temperature room maintained at a negative pressure from the outside,
A cylindrical shape that is inserted into the observation port formed on the wall surface of the high-temperature chamber with its distal end at the top, shields the observation port by its proximal end, and opens a part of the proximal end The observation device itself,
An observation unit provided at a distal end portion of the observation apparatus main body, and provided with an illuminating unit that illuminates the interior of the high temperature chamber, and an imaging unit that images the interior of the high temperature chamber illuminated by the illuminating unit;
A support unit provided in the observation apparatus main body, and supporting the observation unit so as to be movable in the vertical and horizontal directions;
An operation unit that is provided outside the high temperature chamber and operates the observation unit in the vertical and horizontal directions;
A power transmission unit disposed in the observation apparatus main body and transmitting an operation force of the operation unit to the support unit;
A display unit that is provided outside the high temperature chamber and displays an image captured by the imaging unit;
A high-temperature room observation apparatus, wherein the observation section is cooled by supplying outside air outside the high-temperature room from the base end of the main body of the observation apparatus to the observation section via an internal cavity.   The high-temperature room observation apparatus according to claim 1, wherein a window member capable of adjusting an opening degree of a base end opening of the observation apparatus main body is provided at a base end portion of the observation apparatus main body.   The high-temperature room observation apparatus according to claim 1 or 2, wherein the observation section and the support section are covered with a flexible hood connected to the observation apparatus main body.   The high-temperature indoor observation apparatus according to any one of claims 1 to 3, wherein the observation apparatus main body is configured with a length adjustment structure capable of adjusting a length of the observation apparatus main body.   The length adjusting structure is characterized in that the observation apparatus main body is composed of a plurality of divided members, and the length of the observation apparatus main body can be adjusted by selecting the number of connected divided members. Item 5. The high-temperature indoor observation device according to Item 4.   The high-temperature room observation apparatus according to claim 1, wherein the observation unit includes a cleaning unit that removes dirt attached to the imaging unit and the illumination unit.   7. The high temperature according to claim 6, wherein as the cleaning unit, a scavenging path is formed in which the outside air supplied through the observation apparatus main body is blown to the lens surfaces of the imaging unit and the illumination unit and then exhausted. Indoor observation equipment.   The high-temperature room observation apparatus according to claim 6, wherein a wiper for wiping the lens surfaces of the imaging unit and the illumination unit is provided as the cleaning unit.

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