Distributor, fall film evaporator and refrigeration system

Patent metadata

Field	Value
Publication number	US-11566824-B2
Application number	US-201816756693-A
Country	US
Kind code	B2
Filing date	Oct 12, 2018
Priority date	Oct 18, 2017
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

A distributor (100), a falling film evaporator and a refrigerating system. The distributor includes: a sprayer (110), the top of the sprayer being connected to a falling film evaporator inlet (230), and the bottom of the sprayer being provided with spray holes (111); and an orifice plate (120) disposed at a lower end of the sprayer and provided with multiple distribution holes (121), wherein a centrifugal gas-liquid separating element is disposed in the sprayer and is configured to separate a refrigerant entering the sprayer through the evaporator inlet into a gas phase and a liquid phase. In the distributor, the centrifugal gas-liquid separating element is disposed in the sprayer, so that a two-phase refrigerant entering the sprayer through the evaporator inlet can be better separated under dual effects of the gravity and the centrifugal force.

First claim

The invention claimed is:

1. A distributor, comprising:
a sprayer, the top of the sprayer being connected to a falling film evaporator inlet, and the bottom of the sprayer being provided with spray holes; and
an orifice plate disposed at a lower end of the sprayer and provided with multiple distribution holes;
wherein a centrifugal gas-liquid separating element is disposed in the sprayer and is configured to separate a refrigerant entering the sprayer through the evaporator inlet into a gas phase and a liquid phase;
wherein end plates are disposed on two ends of the sprayer, and each end plate is provided with end through holes.

2. The distributor according to claim 1 , further comprising a baffle plate, wherein the baffle plate is disposed between the sprayer and the orifice plate, a groove for storing a refrigerant is provided on the baffle plate, and the groove is located below the spray holes.

3. The distributor according to claim 2 , wherein the groove is provided on the baffle plate along a longitudinal direction.

4. The distributor according to claim 3 , wherein the baffle plate further comprises flow equalizing holes provided on two sides of the groove along the longitudinal direction.

5. The distributor according to claim 1 , further comprising a shield plate, wherein the shield plate is disposed above the sprayer and covers the orifice plate in a vertical direction.

6. The distributor according to claim 5 , wherein the shield plate further comprises a flange that is disposed along a horizontal direction and is high in the middle and low on two sides.

7. The distributor according to claim 1 , wherein the centrifugal gas-liquid separating element is set as a spiral blade, and the spiral blade extends along the longitudinal direction to penetrate through the sprayer.

8. The distributor according to claim 7 , further comprising a supporting axle that extends along the longitudinal direction to penetrate through the sprayer, and the spiral blade is supported on the supporting axle.

9. The distributor according to claim 1 , wherein the sprayer is constructed to be tubular, and the spray holes are provided at the bottom of the tubular sprayer along the longitudinal direction.

10. The distributor according to claim 9 , wherein two rows of the spray holes are provided at the bottom of the tubular sprayer.

11. A falling film evaporator, comprising:
a housing connected to a suction port of a compressor;
the distributor according to claim 1 , which is disposed at an upper part in the housing; and
a heat exchange pipeline disposed in the housing and below the orifice plate of the distributor.

12. A refrigerating system, comprising the falling film evaporator according to claim 11 .

Assignees

• Carrier Corp

Inventors

• Guo Junjie

Classifications

• F25B2339/0242

  having tubular elements · CPC title

• F25B39/028 Primary

  having distributing means · CPC title

• F25B41/00 Primary

  Fluid-circulation arrangements · CPC title

• B01D1/04

  Evaporators with horizontal tubes · CPC title

• B01D1/16

  by spraying (B01D1/22 takes precedence) · CPC title