JP2019002207A - Piping structure of snow melting roof panel block, and steam passage switching structure - Google Patents

Abstract

To provide a piping structure of a snow melting roof panel block capable of efficiently utilizing heat energy of steam and the like by switching the flow of steam to be supplied to each of snow melting roof panel blocks in addition to a snow melting roof panel single body, even for a larger roof area like a factory roof, and a stem passage switching structure.SOLUTION: Provided is a piping structure of a snow melting roof panel block 10 including: main piping 20 to supply steam; a plurality of a piping branch parts 30 arranged in the middle of the main piping 20; branch piping 40 to supply steam to the snow melting roof panel block 10 from the piping branch part 30; a snow melting completion time sensing member 50 arranged on one snow melting roof panel positioned at a lower end of the snow melting roof panel block; and a switching member 60 arranged on the piping branch part 30. Also provided is a steam passage switching structure.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a switching valve for each snowmelt roof panel block that can switch a water vapor supply path for each snowmelt roof panel block, and a piping structure that supplies water vapor to each snowmelt roof panel block. Furthermore, when the area of the roof itself increases and the installation area of the snowmelt roof panel increases, such as the roof of a large building such as a factory, not the roof of a general house, the conventional snowmelt roof In addition to the method of switching the water vapor path for each panel, the present invention relates to a piping structure for a snow melting roof panel block and a water vapor path switching structure capable of switching the water vapor path for each snow melting roof panel block.

  In the snowy country in winter, there are problems that a lot of labor (and dangerous work) is spent on the work of snow falling on the roof, and that there is a shortage of labor necessary for snow removal. It was. In order to solve the above problems, the applicants have developed a snow melting roof panel having a snow melting function capable of solving snow accumulated on the roof by allowing water vapor to pass through the roof.

  In snowmelt roof panels with a snowmelt function developed by the applicants, as a mechanism for effectively using the thermal energy of water vapor supplied to the snowmelt roof panels, the flow of water vapor flowing into the snowmelt roof panels after the snowmelt is completed A changeover valve for each snowmelt roof panel has been developed to change the path so that water vapor flows through the drainage pipe. In short, a system has been developed that prevents water vapor from being supplied to a snow melting roof panel that has completed snow melting, and supplies water vapor only to the snow melting roof panel that has not yet completed snow melting.

  In Patent Document 1, “Providing a heat-sensing switching valve that can automatically switch the flow of water vapor supplied to the snow melting roof panel.”, “Thermal expansion and contraction according to the sensed temperature. Connected to the extruding member 20, the extruding member 20 installed so as to reciprocate linearly in conjunction with the movement caused by the thermal expansion and contraction of the member that repeats thermal expansion and contraction according to the sensed temperature, The rack gear 30, the pinion gear 40 installed so as to mesh with the rack gear 30, and the rotation shaft installed at the rotation center of the pinion gear 40, and a lid that rotates in conjunction with the rotation of the pinion gear 40. A heat-sensing switching valve provided with a member (Patent Document 1: Problem to be solved) is disclosed. That is, a heat-sensing switching valve (Patent Document 1: title of invention) installed on one snowmelt roof panel is disclosed.

Japanese Unexamined Patent Publication No. 2017-20198

  If the heat-sensing switching valve according to Patent Document 1 (Patent Document 1: the title of the invention), by switching the flow of water vapor, no water is supplied to the snow-melting roof panel where snow melting is completed, and the snow melting is completed. Water vapor can be supplied to a snowmelt roof panel that has not been used. However, instead of a general house roof, for example, when the area of the roof itself becomes large, such as a factory roof, only the method of switching the flow of water vapor for each snow melting roof panel was adopted. It is preferable to install a switching valve for each roof panel, because the steam energy is wasted because water flows into the drainage pipe (bypass) installed in the snow melting roof panel where the snow melting is completed as usual. No. For this reason, even if it is a case where the area of the roof itself becomes large, the piping structure and water vapor path switching structure which can utilize the thermal energy of water vapor efficiently were desired.

  The object of the present invention is to switch the water vapor path to be supplied for each snow melting roof panel block in addition to the conventional switching valve for each snow melting roof panel, even when the area of the roof itself becomes large like a factory roof. Thus, an object of the present invention is to provide a snow melting roof panel block piping structure and a water vapor path switching structure that can effectively use the thermal energy of water vapor.

  In order to solve the above-mentioned problem, the invention described in claim 1 is a piping structure for feeding water vapor supplied from a boiler for each snow melting roof panel block, and a water vapor path switching structure, from the boiler to the snow melting roof. A main pipe for supplying water vapor to the panel block, a plurality of pipe branch portions arranged in the middle of the main pipe, and a branch pipe for supplying water vapor from the pipe branch portion to the snow melting roof panel block A snow melting completion sensing member installed on one snow melting roof panel located at the lower end of the snow melting roof panel block, and a switching member installed in the pipe branching section, the snow melting completion sensing member and the switching The member is a snow melting roof panel block piping structure connected by a line member, and a water vapor path switching structure Than is. In the present specification, the snow melting roof panel block is a unit in which a plurality of snow melting roof panels are connected and arranged, and is a unit of the snow melting roof panel composite.

  According to a second aspect of the present invention, in the first aspect, the snow melting completion detecting member is urged in a direction to prevent reversal by an elastic body, and has a diaphragm member provided with a pushing member in the vicinity of the center, and the diaphragm Piping of a snowmelt roof panel block having a connecting member installed to rotate in conjunction with the reversing movement of the member, and wherein the water vapor path switching member has a switching member rotatably installed It is characterized by a structure and a water vapor path switching structure.

  According to the present invention, the main pipe for supplying water vapor from the boiler to the snow melting roof panel block, the plurality of pipe branching portions arranged in the middle of the main pipe, and the water vapor is supplied from the pipe branching portion to the snow melting roof panel block. A branch pipe is provided. A snow melting completion sensing member installed on one snow melting roof panel located at the lower end of the snow melting roof panel block and a switching member installed at the pipe branching portion are provided.

  In addition, since the detection member and the switching member when the snow melting is completed are connected by the linear member, the switching member is operated by the linear member when the snow melting is completed for each snow melting roof panel block to branch the water vapor (in short, the snow melting is completed). It can be made to flow to the main pipe side (snow-melting roof panel block where snow melting is not completed) without flowing to the snow-melting roof panel block. Therefore, when the area of the roof itself becomes large, such as a factory roof, not a roof of a general house, water vapor will not flow through the snow melting roof panel body, but the drainage piping installed for each snow melting roof panel (Bypass) because it flows, the heat energy of water vapor is wasted, and a certain unit (snow melting roof panel block) according to the switching valve for each conventional snow melting roof panel ( By installing a switching valve for each set), it has become possible to effectively use heat energy such as water vapor.

BRIEF DESCRIPTION OF THE DRAWINGS It is a general view for demonstrating the piping structure of the snowmelt roof panel block which concerns on a present Example, and a water vapor path switching structure. It is a figure for demonstrating the installation position and structure of a sensing member at the time of snow melting completion. It is a figure for demonstrating the installation position and structure of a switching member. It is a figure for demonstrating the operation state at the time of snow melting of a snow melting roof panel block, and the time of completion of snow melting. It is the whole schematic for demonstrating the detection structure at the time of the completion of snow melting concerning the example of a change.

<Snow melting roof panel block piping structure and water vapor path switching structure>
Hereinafter, an embodiment of a snow melting roof panel block piping structure and a water vapor path switching structure according to the present invention will be described in detail with reference to FIGS. FIG. 1 is an overall view for explaining a piping structure and a water vapor path switching structure of a snowmelt roof panel block 10 according to the present embodiment. FIG. 2 is a view for explaining the installation position (indicated as A in the drawing) and the structure of the sensing member 50 when snow melting is completed. FIG. 3 is a diagram for explaining an installation position (indicated by an arrow in the drawing) and a structure of the switching member 60.

  In the conventional switching valve, a switching valve is installed for each snowmelt roof panel, and when the snowmelting is completed for each snowmelt roof panel, the system switches the water vapor path. Water vapor also flows through the panel drain pipe (bypass). When the area of the roof itself is large, such as a factory roof, the amount of the roof becomes enormous, and the heat energy of water vapor is wasted. Therefore, in the present invention, in addition to the conventional switching valve (installed for each snowmelt roof panel), the operation is performed when the snowmelt is completed for each unit of the snowmelt roof panel block 10 (a plurality of snowmelt roof panels). It is characterized in that a mechanism for switching the route is configured.

  As shown in FIG. 1, the piping structure of the snow melting roof panel block 10 according to the present embodiment is such that the water vapor sent from the boiler flows through the main pipe 20, and the pipe branching section 30 (pipe branching sections 30, 30,. ... To flow through the branch pipe 40 (branch pipes 40, 40,...) And to be supplied to the snow melting roof panel block 10 (snow melting roof panel blocks 10, 10,...). It is piped. In the water vapor path switching structure according to the present embodiment, a snow melting completion detection member 50 is installed on the water vapor outlet side of one snow melting roof panel located at the lower end of the snow melting roof panel block 10 ("here The switching member 60 is installed in the pipe branching portion 30 on the side of supplying water vapor to the snow melting roof panel block 10 (described as “installing 60 here”). Further, the sensing member 50 and the switching member 60 when the melting of snow is completed are connected by a linear member 70.

  As shown in FIG. 2, a snow melting completion detection member installed on the water vapor outlet side of one snow melting roof panel located at the lower end (position indicated as A) of the snow melting roof panel block 10 according to the present embodiment. 50, a diaphragm member 90 which is urged in a direction to prevent reversal by an elastic body and includes a rod-shaped pushing member 80 near the center, and a reversing movement of the diaphragm member 90 (directly, a rod-like pushing member). The connecting member 100 is provided so as to rotate in conjunction with the downward movement of the member 80. The connecting member 100 has a V shape (an angle of 70 ° to 90 ° with respect to the rotation axis as a reference center) shape with the rotation axis as the center, and the tip of one end side of the V shape is the diaphragm member 90. It connects with the extrusion member 80, and the front-end | tip of the other end side of V shape is connected with the filament member 70 (wire).

  As described in FIG. 3, a switching member 60 that is rotatably installed is installed in the pipe branching portion 30 that is a side for supplying water vapor to the snow melting roof panel block 10 (a state before switching). The switching member 60 installed in the pipe branching portion 30 on the side where the water vapor is supplied and the connecting member 100 (see FIG. 2) installed on the snow melting roof panel block side are connected by a line member 70 (wire). The movement of the switching member 60 is interlocked with the movement of the member 100. (Details of interlocking the movement of the switching member 60 with the movement of the connecting member 100 will be described with reference to FIG. 4).

<Operating state of snow melting roof panel block piping structure and water vapor path switching structure>
FIG. 4 is a diagram for explaining an operation state of the snow melting roof panel block 10 according to the present embodiment and the water vapor path switching structure during snow melting and when the snow melting is completed. As shown in FIG. 4, during the snow melting in the snow melting roof panel block 10, the diaphragm member 90, which is a sensing member 50 (installed at a position indicated as A) when the snow melting is complete, has the water vapor passing through the inside of the snow melting roof panel. Since the heat energy is spent on the work of melting snow and the temperature does not rise sufficiently, the steam pressure supplied from the steam supply port is weak even on the steam discharge side. For this reason, the diaphragm member 90 is in an upwardly convex state by the elastic force of the elastic body (helical spring) (see the lower left enlarged view). On the other hand, since the switching member 60 (installed at a position indicated as B) is in a state of closing the main pipe 20 (see the upper left enlarged view), the water vapor passes through the branch pipe 40 and the snow melting roof panel block 10. To be supplied.

  When the snow melting in the snow melting roof panel block 10 is completed, the thermal energy of water vapor is not spent on the work of snow melting, and the temperature rises sufficiently. For this reason, since the vapor pressure supplied from the water vapor supply port is increased also on the water vapor discharge port side, the diaphragm member 90 is inverted to a convex downward state (see the lower right enlarged view). When the connecting member 100 installed so as to rotate in conjunction with the reversing movement of the diaphragm member 90 (directly, the downward movement of the rod-shaped pushing member 80) rotates to the left side, The strip member 70 is pulled. Since the line member 70 is pulled, the switching member 60 is rotated counterclockwise (see the upper right enlarged view), so that the water vapor flows to the main pipe 20 side and enters the next snow melting roof panel block 10. It comes to be supplied.

<Effects of snow melting roof panel block piping structure and water vapor path switching structure>
In the present embodiment, when the snow melting is completed for each snow melting roof panel block 10, the switching member 60 can be operated by the linear member 70 so that the water vapor flows to the main pipe 20 without flowing to the branch pipe 40. Water vapor does not flow through the snow melting roof panel when the area of the roof itself increases, such as the roof of a factory, rather than the roof of a general house. ) Would flow, so the heat energy of water vapor was wasted. In the present invention, a drain valve for a snow melting roof panel in which snow melting is completed by installing a switching valve for each unit (solid) of a snow melting roof panel block in accordance with a conventional switching valve for each snow melting roof panel. Since it is possible to prevent any water vapor from flowing through (bypass), the thermal energy of water vapor can be used effectively.

<Pipe structure of snow melting roof panel block and change example of water vapor path switching structure>
The piping structure of the snow melting roof panel and the water vapor path switching structure according to the present invention are not limited to the aspects of each embodiment described above, and the main piping, the piping branching portion, the branch piping, the snow melting completion sensing member, The configurations of the water vapor path switching member, the line member, and the like can be appropriately changed as necessary without departing from the spirit of the present invention.

  As an example, FIG. 5 shows an overall schematic diagram for explaining a snow melting completion sensing structure according to a modified example. The snow melting completion sensing member is not limited to the configuration of the embodiment, and the configuration of the snow melting completion sensing member according to the present invention can be modified as described below. That is, as shown in FIG. 5, the steam pressure adjusting valve that is urged by a helical spring or the like from the downward direction to the upward direction and is movably installed in the vertical direction and the reverse is prevented by the helical spring. A diaphragm member that is biased in the direction and reverses due to the vapor pressure of the supplied water vapor, and a connecting member that moves in conjunction with the reverse movement of the diaphragm member. And a wire member for interlocking the switching member installed on the pipe branching portion side.

  Since the piping structure of the snow melting roof panel block and the water vapor path switching structure according to the present invention have excellent effects as described above, the piping structure of the snow melting roof panel in the field of the snow melting roof panel having the snow melting function. And a water vapor path switching structure.

DESCRIPTION OF SYMBOLS 10 ... Snow melting roof panel block 20 ... Main piping 30 ... Piping branch part 40 ... Branch piping 50 ... Snow melting completion detection member 60 ... Switching member 70 ... Line member 80 ... Extruded member 90 ... Diaphragm member 100 ... Connecting member

Claims (2)

A piping structure for feeding steam supplied from a boiler for each snowmelt roof panel block, and a steam path switching structure,
Main piping for supplying water vapor from the boiler to the snowmelt roof panel block;
A plurality of pipe branches arranged in the middle of the main pipe;
A branch pipe for supplying water vapor to the snow melting roof panel block from the pipe branch section;
A snow melting completion sensing member installed on one snow melting roof panel located at the lower end of the snow melting roof panel block;
It has a switching member installed in the pipe branching section,
The snow melting roof panel block piping structure and water vapor path switching structure, wherein the snow melting completion sensing member and the switching member are connected by a line member.   The snow melting completion detecting member is urged in a direction to prevent reversal by an elastic body, and is installed so as to rotate in conjunction with a reversing movement of the diaphragm member, and a diaphragm member having a pushing member near the center. The piping structure of the snow melting roof panel block and the water vapor path switching structure according to claim 1, wherein the connection member is provided.

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