JP2014196783A - Temperature indication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a temperature indication device enabling an operation state of a steam trap to be determined only by visual observation of one place.SOLUTION: An inlet side pipe 2 and an outlet side pipe 3 are connected to a steam trap 1. A temperature state detecting member 4 is installed to the upper surface of the inlet side pipe 2 and, in the same way, a temperature state detecting member 5 is installed to the upper surface of the outlet side pipe 3. The temperature state detecting members 4, 5 are connected by a connection member 8. An indication member 10 is mounted at right and left ends by support bars 11, 12 one ends of which are fixed to the temperature state detecting members 4, 5. The indication member 10 indicates whether or not the steam trap 1 is normal, according to displacement of the temperature state detecting members 4, 5, so that an operation state of the steam trap 1 can be determined only by visual observation of one place of the indication member 10.

Description

The present invention relates to a temperature display device capable of confirming whether or not a steam trap attached to a steam pipe is operating normally.
A steam trap is a type of automatic valve that discharges only condensate condensed with steam to the outside and does not discharge steam to the outside.

  A conventional temperature display device is a temperature display plate made of a shape memory alloy thin plate and attached to two locations on the inlet side and the outlet side of the steam trap valve port. Visually determine whether the steam trap is operating normally, whether steam that should not be discharged is leaked, or whether condensate that should be discharged is stagnant. It is something that can be done.

In the conventional temperature display device described above, determination logic is required to determine the operating state of the steam trap from the shape or color state of each temperature display plate attached at two locations, and the determination itself is complicated. There was a problem that would become.

Reality 3-7680

The problem to be solved is to obtain a temperature display device that can determine the operating state of the steam trap only by visual inspection at one place.

In the present invention, temperature state detection members are attached to the inlet side and the outlet side of the valve port of the steam trap, and whether or not the steam trap is operating normally based on temperature information from the temperature state detection member. A display that displays whether or not the steam trap is normal according to the displacement of the connection member by attaching a connection member for connecting the temperature state detection member on the inlet side and the outlet side respectively. The members are arranged.

  According to the present invention, a connecting member that connects the temperature state detecting member on the inlet side and the outlet side is attached, and a display member that displays whether or not the steam trap is normal according to the displacement of the connecting member is disposed. The operating state of the steam trap can be determined by visual observation of only one position of the display member.

The block diagram which shows the Example of the temperature display apparatus which concerns on this invention.

As a temperature state detection member attached to the temperature display device of the present invention, a so-called temperature sensitive element, specifically, a shape memory alloy, a bimetal, a liquid seal bellows, or the like can be used.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG. An inlet side pipe 2 and an outlet side pipe 3 are connected to the steam trap 1. Although not shown, the valve port of the steam trap 1 is provided inside. The mixed fluid of steam and condensate flows into the inside of the steam trap 1 from the inlet side pipe 2, and only the condensate is discharged from the outlet side pipe 3 to the outside through the internal valve port.

A temperature state detection member 4 is attached to the upper surface of the inlet side pipe 2. Similarly, the temperature state detection member 5 is attached to the upper surface of the outlet side pipe 3. Each temperature state detection member 4, 5 includes a bimetal as a temperature sensing element (not shown) inside, and the temperature detection ends 6, 7 are attached to the ends of the bimetal. Each of the temperature state detection members 4 and 5 can detect the temperature state of the inlet side and the outlet side of the steam trap 1.

The temperature detection ends 6 and 7 of the temperature state detection members 4 and 5 are connected by a connection member 8. The connecting member 8 is manufactured by a coil spring in this embodiment. Both end portions of the coil spring 8 are connected to the temperature detection ends 6 and 7. An indicator marker 9 that moves in accordance with the displacement of the coil spring 8 as a connecting member is attached to the center of the coil spring 8.

  A display member 10 is arranged behind the indication marker 9. The display member 10 has a rectangular plate shape, and the left and right end portions are attached to the temperature state detection members 4 and 5 with support rods 11 and 12 having one end portions fixed thereto. The display member 10 includes “GOOD”, which means that the steam trap 1 is operating normally, “LEAK”, which means that steam that should not be discharged is leaked, “COLD”, which means that condensate that must be retained, is described.

  The temperature state detection members 4 and 5 on the inlet side and the outlet side of the steam trap 1 detect the temperature states on the inlet side and the outlet side of the steam trap 1 to displace the coil spring 8, and the displacement of the coil spring 8 is transferred to the indication marker 9. By transmitting and displaying on the display member 10 whether or not the steam trap 1 is normal according to this displacement, the operating state of the steam trap 1 can be judged by visual observation at only one location of the display member 10. it can.

  The present invention can be applied as a temperature display device that can easily confirm whether or not a steam trap attached to a steam pipe is operating normally.

DESCRIPTION OF SYMBOLS 1 Steam trap 2 Inlet side piping 3 Outlet side piping 4 Inlet side temperature state detection member 5 Outlet side temperature state detection members 6 and 7 Temperature detection end 8 Connection member 9 Indicator marker 10 Display member

Claims (1)

  Attach temperature state detection members to the inlet and outlet sides of the steam trap valve port, and check whether the steam trap is operating normally based on temperature information from the temperature state detection member. A connecting member for connecting the temperature state detecting member on the inlet side and the outlet side is attached, and a display member for displaying whether the steam trap is normal according to the displacement of the connecting member is arranged. A temperature display device characterized by that.

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