Nghiên cứu và chế tạo thiết bị thu hồi gas r22

HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND
EDUCATION
FACULTY OF VEHICLE AND ENERGY ENGINEERING

GRADUATION PROJECT

RESEARCHING AND MANUFACTURING
A GAS RECOVERY MODEL R22
Instructor:
MA. NGUYEN LE HONG SON
Group performance:
VO NGOC TRUNG 13147076
DINH QUANG TRUNG 13147075


CONTENT
1. OVERVIEW OF THERMAL INDUSTRY

2. THE IMPORTANCE OF GAS RECOVERY
3. INTRODUCTION TO GAS RECOVERY
MACHINE
4. OPERATING A GAS RECOVERY
MACHINE
5. SUMMARY


1. OVERVIEW OF THERMAL INDUSTRY

CARRIER WITH AIR CONDITIONER SYSTEM
ON THE ROOF OF THE BUILDING

1. OVERVIEW OF THERMAL INDUSTRY

AIR CONDITIONER HAS BECOME POPULAR IN OUR LIFE


1. OVERVIEW OF THERMAL INDUSTRY

MANY PRODUCTS HAVE BEEN MANUFACTURED TO SERVE
MODERN LIFE AS WELL AS PRODUCTION


2. THE IMPORTANCE OF GAS RECOVERY
DIFFERENT KINDS OF REFRIGERANT

IN THE MARKET, THERE ARE MANY
KINDS OF REFRIGERANT DEPENDING
ON THE COOLING LOAD AS WELL AS
THE ENVIRONMENTAL PROTECTION
FOR

EXAMPLE:

R410A, R32 ...

R12,

R22,

R-134A,

2. THE IMPORTANCE OF GAS RECOVERY
THE QUALITY OF GAS R22

GAS

R22

IS

USED

COMMONLY

BESAUSE IT HAS LOW PRICE (ABOUT
980,000 VND / 13.6KG - MARKET
SURVEILLANCE)
VOLUMETRIC
CAPACITY

AND

STABLE

REFRIGERATING


2. THE IMPORTANCE OF GAS RECOVERY
THE ADVANTAGES AND

DISADVANTAGES OF GAS R22

-

-

ADVANTAGES:
+ HAVE ABILITY TO UNDERGO THE

ADMIXTURE

HAVING

AIR

INSIDE.

DISADVANTAGES:
+ LARGE VISCOSITY, BAD FLUIDITY

SO THE PIPES AS WELL AS VANS

THEREFORE, IT IS EASY TO SET UP.

MUST BE BIGGER THAN USUAL.

( DO NOT NEED TO USE A VACUUM -

+ ALTHOUGH IT IS NOT HARMFUL

PUMP )

FOR

+ THE REFRIGERATORS USING GAS

BODY,

CONCENTRATION

WHEN

THE

INCREASES

R22 HAVE HIGH SAFETY BECAUSE OF

SIGNIFICANTLY,

NEITHER

SUFFOCATE BECAUSE OF LACKING

FIRELESSNESS

HARMLESSNESS FOR BOBY
+ LOW COST

NOR

WHICH

CAN

OF AIR DIVING.
+ PUNCTURING THE OZONE LAYER,


2. THE IMPORTANCE OF GAS RECOVERY

WHY DO WE
NEED TO
RECOVER
REFRIGERANT?

THE IMPORTANCE OF
GAS R22

PROTECTING
ENVIRONMENT

SAVING ENERGY


2. THE IMPORTANCE OF GAS RECOVERY

IN THE MARKET, THERE ARE MANY KINDS OF GAS
RECORVERY HAVING DIFFERENT PRICE, FROM 30M TO 80M
VND

2. THE IMPORTANCE OF GAS RECOVERY

IN THE THERMAL WORKSHOP THERE IS A GAS RECOVERY, BUT IT IS OLD


2. THE IMPORTANCE OF GAS RECOVERY

A GAS RECOVERY MODEL R22


3. INTRODUCTION TO GAS RECOVERY
MACHINE

THE PRINCIPLE DIAGRAM OF THE GAS RECOVERY MODEL R22


3. INTRODUCTION TO GAS RECOVERY
MACHINE

ELECTRICAL CIRCUIT DIAGRAM


3. INTRODUCTION TO GAS RECOVERY
MACHINE

INSTALLATION DIAGRAM

3. INTRODUCTION TO GAS RECOVERY
MACHINE
-

INSTALL

CAPILLARY

TUBE

INTO

THE

COMPRESSOR AS THIS PICTURE.
- THEN, RUN THE IDLE. THE SKIMMING HEAT OF
THE COMPRESSOR ABSORBS THE AIR FREELY
AND THE OTHER SIDE OF CAPILLARY TUBE IS
PLACED FREELY AS THE PICTURE, RUN THE
COMPRESSOR, THE NEEDLE WILL INCREASE
GRADUALLY TO A VALUE. THE HIGHEST STABLE
VALUE

WHICH

THE

NEEDLE

MEASURES

IS

CALLED P1 AND IT IS THE WATER IMPEDE OF
CAPILLARY TUBE IF THE PRESSURE OF THE
MANOMETER IS LARGER THAN OUR DESIRE,
CUT IT.
- IF THE PRESSURE OF THE MANOMETER IS


3. INTRODUCTION TO GAS RECOVERY
MACHINE
WE ASSEMBLE THE MACHINE BY FOLLOWING THE PRINCIPLE DIAGRAM
AND INSTALLATION DIAGRAM


3. INTRODUCTION TO GAS RECOVERY
MACHINE
WE ASSEMBLE THE MACHINE BY FOLLOWING THE PRINCIPLE DIAGRAM
AND INSTALLATION DIAGRAM


4. OPERATING A GAS RECOVERY
MACHINE
OPERATING
CONECT

THE

SYSTEM

LIKE

THAT

IMAGE

STEP 1: LET THE CHARGED WIRE CONNECT
FROM

GAS

RECOVERY

WITH

HEAD

OF

EQUIPMENT REQUIRED.
STEP 2: CHECK ELECTRICAL SAFETY 
STEP 3: SUPPLY POWER FOR MACHINE THEN
TURN ON THE SOURCE SWITCH (POWER LIGHT)
AND

TURN

ON

THE

COMPRESSOR

SWITCH

(COMPRESSED LIGHT) FOR THE SYSTEM TO
OPERATE


4. OPERATING A GAS RECOVERY
MACHINE

SPECIFICATION

Time

High
pressure
(bar)

Low
pressure
(bar)

Weigh
(kg)

refrigerant
volume (kg)

13h45

11,77

6,58

5,80

-

13h50

11,67

6,20

5,56

0,24

13h55

11,575

5,20

5,30

0,26

14h00

11,234

4,50

5,10

0,20

14h05

11,08

4,10

4,95

0,15

14h10

11,08

3,80

4,80

0,15

14h15

10,98

3,55

4,65

0,15

14h20

10,81

3,49

4,50

0,15

14h25

10,79

3,20

4,35

0,15

14h30

10,79

3,00

4,25

0,10

STEAM RECOVERY DATA TABLE


4. OPERATING A GAS RECOVERY
MACHINE

STEAM RECOVERY GRAPH


4. OPERATING A GAS RECOVERY
MACHINE

SPECIFICATION

Time

High
pressure
(bar)

Low
pressure
(bar)

Weigh
(kg)

refrigerant
volume (kg)

12h15

10,59

10,5

4,00

-

12h20

12,5

10,00

3,40

0,60

12h25

12,75

6,40

2,92

0,48

12h30

12,556

4,90

2,82

0,10

12h35

12,26

2,50

2,64

0,18

12h40

11,87

1,00

2,59

0,05

12h45

11,67

0

2,51

0,08

LIQUID RECOVERY DATA TABLE


4. OPERATING A GAS RECOVERY
MACHINE

LIQUID RECOVERY GRAPH

4. OPERATING A GAS RECOVERY
MACHINE

COMMENT
AFTER PARAMETER TRACKING IT CAN BE SEEN

THAT LIQUID RECOVERY IS MORE EFFECTIVE THAN
VAPOR RECOVERY.
REASONS:
+ BECAUSE THE HEAT EXCHANGER HAS LARGER
AREA,

WHEN

THE

LIQUID

THROUGH

THE

CAPILLARIES AT THIS TIME IS MOISTURE, IT WILL
BE FILLED IN THE HEAT EXCHANGER QUICKLY,
RESULTING IN A LOT OF VACUUM, WHILE THE
STEAM THROUGH THE CAPILLARIES AT THIS TIME
RESULTING IN FILLING THE HEAT EXCHANGER IS
ALSO SLOW.
+ DUE TO THE LARGE TUBE, THE LIQUID FILLING
WILL FILL UP FASTER, LEADING TO THE SYSTEM

5. SUMMARY

- WITH

THE

KNOWLEDGE

FROM

THEORY

AND

UNDER

THE

GUIDANCE OF MA.NGUYEN LE HONG SON WE HAVE COMPLETED
THE PROJECT OF GRADUATION PROJECT, AND CREATED THE
PRODUCT GAS RECOVERY R22 WHICH CAN OPERATE WELL AND
PUT INTO USING.
- THIS TOPIC IS ALSO HELPING US TO REVIEW THE NECESSARY
BASIC KNOWLEDGE AND BECOME OUR MOTIVATION TO STAND
STEADILY IN THE ROAD THAT YOU HAVE CHOOSEN.