Heat treatment device

Patent metadata

Field	Value
Publication number	US-10421053-B2
Application number	US-201916389125-A
Country	US
Kind code	B2
Filing date	Apr 19, 2019
Priority date	Dec 8, 2016
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

A reactor as a heat treatment device includes heat transfer structures removably placed in first flow channels, a first information acquisition unit connected to the inlet side of the first flow channels to acquire information for specifying a temperature and a flow rate of the first fluid which are reference conditions after lapses of time, a second information acquisition unit connected to the outlet side of the first flow channels to acquire the information for specifying the temperature of the first fluid after each lapse of time, and a control unit that calculates a heat exchange amount after each lapse of time in accordance with the temperature and the flow rate specified according to the information acquired by the first information acquisition unit and the second information acquisition unit, so as to estimate a service life of the heat transfer structures in accordance with the heat exchange amount.

First claim

What is claimed is:

1. A heat treatment device causing a first fluid and a second fluid to flow therethrough, the device comprising:
a heat exchange unit including a first flow channel through which the first fluid flows and a second flow channel through which the second fluid flows;
a heat transfer structure removably placed in the first flow channel;
a first information acquisition unit connected to an inlet side or an outlet side of the first flow channel to acquire information for specifying a temperature, a flow rate, or a composition of the first fluid which is a reference condition after lapses of time;
a second information acquisition unit connected to the outlet side of the first flow channel to acquire the information for specifying the temperature, the flow rate, or the composition of the first fluid after each lapse of time; and
a control unit that calculates a heat exchange amount, a reaction rate, or a yield after each lapse of time in accordance with the temperature, the flow rate, or the composition specified according to the information acquired by the first information acquisition unit and the second information acquisition unit, so as to estimate a service life of the heat transfer structure in accordance with the heat exchange amount, the reaction rate, or the yield.

2. The heat treatment device according to claim 1 , wherein:
the first fluid is a heat medium; and
the heat transfer structure is a heat transfer promoter.

3. The heat treatment device according to claim 2 , wherein:
the second information acquisition unit is a second temperature measurement unit that measures the temperature of the first fluid discharged from the first flow channel;
the control unit stores the temperature measured by the second temperature measurement unit after each lapse of time;
the control unit obtains the heat exchange amount after each lapse of time in accordance with the temperature measured by the second temperature measurement unit;
the control unit calculates a first approximate equation representing a relation between each lapse of time and the heat exchange amount; and
the control unit applies, to the first approximate equation, a predetermined threshold of the heat exchange amount at a time when the heat transfer promoter needs to be replaced, so as to estimate the service life of the heat transfer promoter.

4. The heat treatment device according to claim 3 , wherein:
the first information acquisition unit includes a first temperature measurement unit that measures the temperature of the first fluid introduced to the first flow channel, and a flow rate measurement unit that measures the flow rate of the first fluid introduced to the first flow channel; and
the control unit determines whether the reference condition is fulfilled in accordance with the temperature measured by the first temperature measurement unit and the flow rate measured by the flow rate measurement unit.

5. The heat treatment device according to claim 1 , wherein:
the first fluid is a reaction fluid; and
the heat transfer structure is a catalyst body.

6. The heat treatment device according to claim 5 , wherein:
the second information acquisition unit is a composition analysis unit that analyzes the composition of the first fluid discharged from the first flow channel;
the control unit stores the composition analyzed by the composition analysis unit after each lapse of time;
the control unit obtains the reaction rate or the yield after each lapse of time in accordance with the composition analyzed by the composition analysis unit;
the control unit calculates a second approximate equation representing a relation between each lapse of time and the reaction rate or the yield; and
the control unit applies, to the second approximate equation, a predetermined threshold of the reaction rate or the yield at a time when the catalyst body needs to be replaced, so as to estimate the service life of the catalyst body.

7. The heat treatment device according to claim 6 , wherein:
the first information acquisition unit is a third temperature measurement unit that measures the temperature of the first fluid discharged from the first flow channel; and
the control unit determines whether the reference condition is fulfilled in accordance with the temperature measured by the third temperature measurement unit.

8. The heat treatment device according to claim 1 , wherein:
the heat exchange unit includes a heat transfer body; and
the first flow channel and the second flow channel are grooves or penetration holes provided in the heat transfer body.

Assignees

• Ihi Corp

Inventors

• Shibuya Hideshi
• Sakakura Shigeki
• Yano Akihisa
• Akita Takahito
• Yamamoto Taiga
• Oka Tatsuya
• Miyajima Shunji
• Takeuchi Yusuke

Classifications

• B01J2219/00222

  taking actions · CPC title

• B01J2219/00216

  Parameter value calculated by equations · CPC title

• B01J2219/00211

  comparing a sensed parameter with a pre-set value · CPC title

• B01J2219/00202

  at the reactor outlet · CPC title

• B01J2219/00198

  at the reactor inlet · CPC title