Refrigeration – Material cooling means including gas-liquid contactor – Cooling heat rejector of refrigeration producer
Reexamination Certificate
1999-06-01
2001-01-30
Bennett, Henry (Department: 3744)
Refrigeration
Material cooling means including gas-liquid contactor
Cooling heat rejector of refrigeration producer
C062S304000, C062S311000, C062S476000
Reexamination Certificate
active
06178766
ABSTRACT:
TECHNOLOGY FIELD
The present invention relates to a kind of air conditioning apparatus, particularly to a kind of low pressure difference heat pump air conditioner with air energy as refrigerating heating circulating power.
TECHNOLOGY BACKGROUND
The differential cold-valley pipe (herein after called J-pipe for short) is a kind of high efficiency heat exchange device featuring a large heat flow rate per unit area and enabling the end temperature difference for heat transmission to approach zero indefinitely. The Chinese patent application No. 941,121, 107.0 has put forward an “air energy 8-form circulation air conditioner” which is an all fresh air conditioner composed of an air energy heat pump J-pipe, a super condensation J-pipe, a low pressure difference energy transformation heat pump M, has rather high thermodynamic cycle efficiency and requires 100% outdoor fresh air for both cool (heat) output in its air conditioning just for achieving the optimal thermodynamic cycle efficiency. However, the above-mentioned technical scheme is mainly pointing to the theoretical research of 8-form circulation and in need of further improvement with respect to heat exchange and thermodynamic cycle efficiency of J-pipe. There still exist quite a few problems in its cooling-weight ratio, volumetric ratio, industrialization of manufacturing process and reducing product cost, hence it is difficult to achieve a fundamental result in solving the three major difficult problems (high energy consumption , low air quality, limited use of CFCs (chloroflucrocarbons).
SUMMARY OF THE PRESENT INVENTION
In order to solve the above-mentioned problems, the present invention puts forward a kind of high efficiency J-pipe air conditioner, in said air conditioner is provided an arc J
1
′ heat exchange device which is formed by stacking alternately multiple-layer arc J
1
strips and multiple-layer corrugated step corrugations and being tightly clamped up into frames composed of arc rib-shaped clamping plates and tie rods, at the contact places of clamping plates and step corrugations there are buffer cushions, ducts F′ formed by step corrugations have a flow direction of S shape, and on their wall surface are cut out several long and strip-shaped heat insulating ports, each J
1
strip has inner corrugated plates inserted into its flat tubes, outside the flat tubes is wrapped thin aluminum sheet, at the outlet and inlet of the working substance are connected respectively the incoming liquid branch tube and suction vapor branch tube; in the high efficiency J pipe air conditioner is also provided an arc J
2
′ heat exchange device which is formed by stacking alternately multiple-layer arc J
2
strips and multiple-layer corrugated membrane corrugations and being tightly clamped up in frames composed of arc rib-shaped clamping plates and tie rods, at the contact places of said clamping plates and membrane corrugations there are buffer cushions, ducts F formed by membrane corrugations have a flow direction of S shape and on their wall surface are cut out several long and strip-shaped heat insulating ports, supporting frames of membrane corrugations are constituted from step corrugations made of thin aluminum or other metallic sheet or fine metallic wire mesh by adhering step membranes on their both surfaces thus to form the membrane corrugations, each J
2
strip constitutes by inserting inner corrugated plates into its flat tubes has a complete t
1
′~t
2
′ non-isothermal working substance flow passage, at the outlet and inlet of the working substance are connected respectively incoming vapor branch tube and outgoing liquid branch tube, outside the flat tubes is wrapped aluminum sheet or corrosion resistant metallic sheet, the flat tubes can be made directly form corrosion resistant metal with membrane type evaporating surface adhered further on the outside, between the parallel arranged flat tubes and membrane type evaporating surfaces are inserted water-carrying yarns; a low pressure pump M is provided between the J
1
′ heat exchanger device and J
2
′ heat exchanger device, the low pressure pump M will work at a rather low condensing pressure P
2
of J
2
′ and a rather high evaporating pressure P
1
of J
1
′ and can jointly convey liquid and vapor; the maximum refrigerating capacity can be obtained when the circulating working substance is a single or mixed (azeotropy or non-azeotropy) refrigerant, the
-form circulation and all fresh air 8-form circulation of the highest circulation efficiency can be obtained when the circulating working substance is a working substance pair composed of absorbent and refrigerant.
The present invention aims at creating a kind of series J pipe air conditioners with rather high practical value and rather high thermodynamic cycle efficiency, and striving to solve the three major difficult problems confronting the current air conditioning industry as high energy consumption, low air quality, limited use of Chloroflucrocarbons (CFCs).
The present invention, first of all, is striving for the raise of heat exchange efficiency and thermodynamic cycle efficiency and full utilization of air energy. The high efficiency J pipe means that heat exchanger of rather small volume can achieve large heat exchange capacity and rather low heat transmission temperature difference. Due to high efficiency characteristics of J pipe, the key technical indices of the present invention on cooling-weight ratio, volumetric ratio (volume occupied by unit refrigerating capacity air conditioning), manufacturing cost, etc. are superior to current air conditioners by merging the full utilization of air energy and non-isothermal, low temperature difference heat transfer characteristics of high efficiency J pipe organically into one integral can run at a COP (refrigerating capacity
et output power of low pressure pump) value above 25 during
-form circulation, and rn at a COP value above 30 during all fresh air 8-from circulation.
REFERENCES:
patent: 4274266 (1981-06-01), Shires
patent: 4434112 (1984-02-01), Pollock
patent: 4757695 (1988-07-01), Malnar
patent: 4869075 (1989-09-01), Ikari et al.
patent: 4884416 (1989-12-01), Hwang
patent: 5148859 (1992-09-01), Beamer
patent: 5168722 (1992-12-01), Brock
patent: 5605052 (1997-02-01), Middleton et al.
patent: 5606868 (1997-03-01), Calvert
patent: 5682757 (1997-11-01), Peterson
patent: 5775114 (1998-07-01), Ji
patent: 5921101 (1999-07-01), Wang
Ji Amin
Tong Xiamin
Bennett Henry
J. D. Ying-kit Lau
Shulman Mark
LandOfFree
Air-conditioner with high-efficiency differential... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air-conditioner with high-efficiency differential..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-conditioner with high-efficiency differential... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2514369