JP2007187197A5 - - Google Patents

Claims (12)

A process for detecting the temperature of a transport pipe that transports a fluid that requires temperature control;
Based on the detected temperature, a step of controlling the temperature of the transport pipe by a temperature adjusting means;
Flowing the fluid in the transport pipe when the fluid is in a stopped state and the temperature is out of a predetermined range;
A piping temperature control method comprising:   2. The pipe temperature control method according to claim 1, wherein the temperature of the transport pipe is detected by an optical fiber temperature sensor.   3. The pipe temperature control method according to claim 1, wherein the fluid is caused to flow by a bypass pipe and a circulation pump that bypass the fluid flowing through the transport pipe.   The pipe temperature control method according to claim 1 or 2, wherein the transport pipe is a double pipe having an inner flow path and an outer flow path connected by a connection flow path, and the fluid is A pipe temperature control method, wherein a fluid is circulated between an inner flow path and an outer flow path of a transport pipe through a circulation pump through the connection flow path.   3. The pipe temperature control method according to claim 1, wherein the fluid is a first and a second spare tank provided respectively on one side and the other side of the transport pipe, and the fluid is the first. A pipe temperature control method, wherein the pipe temperature is controlled by a reciprocating flow pump that reciprocates between the second preliminary tanks via the transport pipe.   The pipe temperature control method according to claim 1 or 2, wherein the fluid is caused to flow by a main pipe provided along the transport pipe and a circulation pump. Transport piping for transporting fluids that require temperature control;
A temperature detection means for detecting the temperature of the transport pipe, provided over the length direction of the transport pipe;
Temperature adjusting means for adjusting the transportation piping temperature based on the data from the temperature detecting means;
Means for monitoring whether the fluid is at rest;
A flow means for causing the fluid in the transport pipe to flow when the fluid is in a stopped state and the temperature of the transport pipe is out of a predetermined range;
A piping temperature control device comprising: 8. The pipe temperature control apparatus according to claim 7, wherein the temperature detecting means is an optical fiber temperature sensor. The pipe temperature control apparatus according to claim 7 or 8, wherein the flow means includes a bypass pipe for bypassing a fluid flowing through the transport pipe and a circulation pump. . The pipe temperature control device according to claim 7 or 8, wherein the transport pipe is a double pipe having an inner flow path and an outer flow path connected by a connection flow path, and the flow means is A pipe temperature control apparatus comprising: a connection flow path that connects an inner flow path and an outer flow path of a transport pipe; and a circulation pump. 9. The pipe temperature control device according to claim 7, wherein the flow means includes first and second auxiliary tanks provided respectively on one side and the other side of the transport pipe, and in the transport pipe. A piping temperature control apparatus comprising: a reciprocating pump for reciprocating fluid. 9. The pipe temperature control apparatus according to claim 7, wherein the flow means includes a main pipe provided along the transport pipe and a circulation pump.