Heat transmission method and high-temperature heat pump device

Patent metadata

Field	Value
Publication number	US-2016178254-A1
Application number	US-201615043009-A
Country	US
Kind code	A1
Filing date	Feb 12, 2016
Priority date	Aug 14, 2013
Publication date	Jun 23, 2016
Grant date	—

Abstract

A heat transmission method using a heat pump system according to the present invention uses a heat transmission medium containing at least one compound represented by general formula (1). In the formula, R 1 is a CH m F 3-m group, m is an integer of 0 or more and 3 or less, R 2 , R 3 and R 4 are each independently a fluorine atom, a chlorine atom, a bromine atom, an iodine atom or a hydrogen atom, and at least one fluorine atom is contained in a molecule. The heat transmission method includes (A) step of gasifying the heat transmission medium; (B) step of compressing the heat transmission medium into a supercritical state; (C) step of causing heat exchange between the heat transmission medium in the supercritical state and a medium to be heated; and (D) step of decreasing the pressure of the heat transmission medium.

First claim

1 . A heat transmission method using a heat pump system, the heat transmission method using a heat transmission medium containing at least one compound represented by general formula (1):
[Chemical formula 1] R 1 R 2 C═CR 3 R 4   (1)
where R 1 is a CH m F 3-m group, m is an integer of 0 or more and 3 or less, R 2 , R 3 and R 4 are each independently a fluorine atom, a chlorine atom, a bromine atom, an iodine atom or a hydrogen atom, and at least one fluorine atom is contained in a molecule];
the heat transmission method comprising:
(A) step of gasifying the heat transmission medium;
(B) step of compressing the heat transmission medium into a supercritical state;
(C) step of causing heat exchange between the heat transmission medium in the supercritical state and a medium to be heated; and
(D) step of decreasing the pressure of the heat transmission medium.

2 . The heat transmission method according to claim 1 , wherein in step (C), the medium to be heated is heated to 80° C. or higher.

3 . The heat transmission method according to claim 1 , wherein in step (C), the medium to be heated is heated to 100° C. or higher.

4 . The heat transmission method according to claim 1 , wherein in step (C), the medium to be heated is heated to 150° C. or higher.

5 . The heat transmission method according to claim 1 , wherein in step (C), the medium to be heated is heated to 170° C. or higher.

6 . The heat transmission method according to claim 1 , further comprising a step (E) of supplying the heat transmission medium to step (A).

7 . The heat transmission method according to claim 1 , wherein at least one compound represented by the general formula (1) is contained at 50% by mass or more.

8 . The heat transmission method according to claim 1 , wherein the at least one compound represented by the general formula (1) is selected from the group consisting of 2,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene, and cis-1,3,3,3-tetrafluoropropene.

9 . The heat transmission method according to claim 1 , wherein the at least one compound represented by the general formula (1) is selected from the group consisting of trans-1-chloro-3,3,3-trifluoropropene, cis-1-chloro-3,3,3-trifluoropropene, and 2-chloro-3,3,3-trifluoropropene.

10 . The heat transmission method according to claim 1 , wherein the at least one compound represented by the general formula (1) is selected from the group consisting of trans-1,2-dichloro-3,3,3-trifluoropropene, cis-1,2-dichloro-3,3,3-trifluoropropene, 1,1-dichloro-3,3,3-trifluoropropene, and 1,1,2-trichloro-3,3,3-trifluoropropene.

11 . The heat transmission method according to claim 1 , wherein the at least one compound represented by the general formula (1) is selected from the group consisting of trans-1-bromo-3,3,3-trifluoropropene, cis-1-bromo-3,3,3-trifluoropropene, 2-bromo-3,3,3-trifluoropropene, trans-2-bromo-1,3,3,3-tetrafluoropropene, and cis-2-bromo-1,3,3,3-tetrafluoropropene.

12 . The heat transmission method according to claim 1 , wherein the heat transmission medium contains cis-1,3,3,3-tetrafluoropropene at 80% by mass or more and 99% by mass or less and contains 1,1,1,3,3-pentafluoropropane at 1% by mass or more and 20% by mass or less.

13 . The heat transmission method according to claim 1 , wherein the heat transmission medium contains cis-1,3,3,3-tetrafluoropropene at 50% by mass or more and 99% by mass or less and contains trans-1-chloro-3,3,3-trifluoropropene at 1% by mass or more and 50% by mass or less.

14 . The heat transmission method according to claim 1 , wherein the heat transmission medium contains cis-1,3,3,3-tetrafluoropropene at 50% by mass or more and 98% by mass or less, contains 1,1,1,3,3-pentafluoropropane at 1% by mass or more and 20% by mass or less, and contains trans-1-chloro-3,3,3-trifluoropropene at 1% by mass or more and 49% by mass or less.

15 . The heat transmission method according to claim 1 , wherein the heat transmission medium contains cis-1,3,3,3-tetrafluoropropene at 50% by mass or more and 99% by mass or less and contains cis-1-chloro-3,3,3-trifluoropropene at 1% by mass or more and 50% by mass or less.

16 . The heat transmission method according to claim 1 , wherein the heat transmission medium contains cis-1,3,3,3-tetrafluoropropene at 65% by mass or more and 99% by mass or less and contains 2,3,3,3-tetrafluoropropene at 1% by mass or more and 35% by mass or less.

17 . The heat transmission method according to claim 1 , wherein the heat transmission medium contains cis-1,3,3,3-tetrafluoropropene at 60% by mass or more and 99% by mass or less and contains trans-1,3,3,3-tetrafluoropropene at 1% by mass or more and 40% by mass or less.

18 . The heat transmission method according to claim 1 , wherein the heat transmission medium contains a lubricant.

19 . The heat transmission method according to claim 18 , wherein the lubricant is selected from mineral oil and synthetic oils including alkylbenzenes, poly(alfa-olefin), esters, polyolesters, polyalkyleneglycols, polyvinylethers, and a combination thereof.

20 . The heat transmission method according to claim 1 , wherein the heat transmission medium further contains a stabilizer.

21 . The heat transmission method according to claim 20 , wherein the stabilizer is selected from nitro compounds, epoxy compounds, phenols, imidazoles, amines, diene-based compounds, phosphates, aromatic unsaturated hydrocarbons, isoprenes, propadienes, terpenes, and a combination thereof.

22 . The heat transmission method according to claim 1 , wherein the heat transmission medium further contains a flame retardant.

23 . The heat transmission method according to claim 22 , wherein the flame retardant is selected from phosphates, halogenated aromatic compounds, fluorinated iodocarbon, fluorinated bromocarbon, and a combination thereof.

24 . A high-temperature heat pump device using the heat transmission method according to claim 1 .

25 . The high-temperature heat pump device according to claim 24 , wherein the high-temperature heat pump device generates warm water of 80° C. or higher.

26 . The high-temperature heat pump device according to claim 24 , wherein the high-temperature heat pump device generates pressurized hot water or superheated steam of 100° C. or higher.

27 . The high-temperature heat pump device according to claim 24 , wherein the high-temperature heat pump device generates pressurized hot water or superheated steam of 130° C. or higher.

28 . The high-temperature heat pump device according to claim 24 , wherein the high-temperature heat pump device generates pressurized hot water or superheated steam of 150° C. or higher.

29 . The high-temperature heat pump device according to claim 24 , wherein the high-temperature heat pump device generates pressurized hot water or superheated steam of 170° C. or higher.

30 . The heat transmission method according to claim 1 , wherein the compound represented by the general formula (1) is 2,3,3,3-tetrafluoropropene, and in a supercritical state of 2,3,3,3-tetrafluoropropene generated in the step of compressing the heat transmission medium, the temperature is 94.7° C. or higher and 200° C. or lower and the pressure is 3.38 MPa or higher and 5.0 MPa or lower.

31 . The heat transmission method according to claim

Assignees

• Central Glass Co Ltd

Inventors

• Nishiguchi Yoshio
• Okamoto Satoru
• Kanai Masatomi

Classifications

• C09K5/044

  comprising halogenated compounds · CPC title

• F25B30/02 Primary

  of the compression type · CPC title

• C09K5/045

  containing only fluorine as halogen · CPC title

• C09K2205/126

  Unsaturated fluorinated hydrocarbons · CPC title

• Y02P20/54

  using solvents, e.g. supercritical solvents or ionic liquids · CPC title