Nano-separation refrigeration system and method for refrigeration circulation

Patent metadata

Field	Value
Publication number	US-11598563-B2
Application number	US-202117359016-A
Country	US
Kind code	B2
Filing date	Jun 25, 2021
Priority date	May 27, 2021
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

The present disclosure discloses a nano-separation refrigeration system and discloses a refrigeration circulation method, wherein the nano-separation refrigeration system includes an evaporator provided with an inlet and an outlet; a condenser provided with a condensation cavity, a gas inlet, a gas outlet, and a liquid outlet, wherein a molecular sieve membrane is disposed in the condensation cavity between the gas inlet and the gas outlet, and the molecular sieve membrane is configured to separate a mixed gas; a first connecting pipe having one end connected to the outlet and the other end to the gas inlet; a second connecting pipe having one end connected to the liquid outlet and the other end to the inlet; a third connecting pipe having one end connected to the gas outlet and the other end to the inlet.

First claim

We claim:

1. A nano-separation refrigeration system, comprising:
an evaporator provided with an inlet and an outlet;
a condenser provided with a condensation cavity, a gas inlet, a gas outlet, and a liquid outlet, wherein a molecular sieve membrane is disposed in the condensation cavity between the gas inlet and the gas outlet, and the molecular sieve membrane is configured to separate a mixed gas;
a first connecting pipe having one end connected to the outlet and the other end to the gas inlet;
a second connecting pipe having one end connected to the liquid outlet and the other end to the inlet;
a third connecting pipe having one end connected to the gas outlet and the other end to the inlet; and
a blower device communicated with the first connecting pipe and configured to introduce the mixed gas into the condensation cavity.

2. The nano-separation refrigeration system according to claim 1 , wherein the blower device comprises a ventilator.

3. The nano-separation refrigeration system according to claim 1 , wherein the second connecting pipe comprises a liquid storage section comprising a plurality of U-shaped pipes.

4. The nano-separation refrigeration system according to claim 1 , wherein the refrigeration system further comprises a heat dissipation device configured to dissipate heat from the condenser.

5. The nano-separation refrigeration system according to claim 4 , wherein the heat dissipation device comprises a cooling water pipe wound around the outside of the condenser.

6. The nano-separation refrigeration system according to claim 5 , wherein a water inlet of the cooling water pipe is higher than a water outlet of the cooling water pipe.

7. The nano-separation refrigeration system according to claim 1 , wherein the gas outlet is located in an upper part of the condenser, the liquid outlet is located in a lower part of the condenser, and the gas inlet is located in a middle of the condenser.

8. The nano-separation refrigeration system according to claim 1 , wherein the condenser comprises a conical guiding part, and the gas outlet is located at a small end of the conical guiding part.

9. The nano-separation refrigeration system according to claim 1 , wherein a port of the third connecting pipe stretches into the second connecting pipe and protrudes beyond an inner wall of the second connecting pipe.

10. A refrigeration circulation method applied in a refrigeration system, wherein the refrigeration system comprises an evaporator, a condenser, and a blower device, the condenser is provided with a condensation cavity, a gas inlet, a gas outlet, and a liquid outlet, a molecular sieve membrane is disposed in the condensation cavity between the gas inlet and the gas outlet; the blower device is configured to introduce a mixed gas into the condensation cavity from the gas inlet; and the refrigeration circulation method comprises the following steps of:
filling a mixed gas composed of a refrigerant and a depressurization gas into the refrigeration system, wherein the depressurization gas comprises at least one of hydrogen or helium;
maintaining a system pressure of the refrigeration system greater than a saturation pressure corresponding to the refrigerant at a preset temperature T, wherein a range of the preset temperature T is 35° C.≤T≤60° C.;
allowing the mixed gas composed of the refrigerant and the depressurization gas to enter the condenser, allowing the depressurization gas to pass through the molecular sieve membrane and flow out from the gas outlet to enter the evaporator, allowing a partial pressure of the gaseous refrigerant in the condenser to reach a saturation pressure, and starting to condense the gaseous refrigerant into a liquid refrigerant; and
allowing the liquid refrigerant to flow out from the liquid outlet and enter the evaporator to be mixed with the depressurization gas, evaporating the liquid refrigerant into the gaseous refrigerant, and allowing the mixed gas of the refrigerant and the depressurization gas to enter the condenser again under an action of the blower device.

Assignees

• Univ Wuyi

Inventors

• Wu Min
• Wu Yijia
• Wu Ji
• Chen Shuo

Classifications

• F25B2400/23

  Separators · CPC title

• F25B43/04

  for withdrawing non-condensible gases · CPC title

• F25B23/00 Primary

  Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect · CPC title

• F25B2339/047

  Water-cooled condensers · CPC title

• F25B41/40

  Fluid line arrangements · CPC title