CN201359413Y

CN201359413Y - Liquid receiver of compressor

Info

Publication number: CN201359413Y
Application number: CNU200920050051XU
Authority: CN
Inventors: 叶泽文; 蒋雄; 张荣华
Original assignee: Panasonic Wanbao Appliances Compressor Guangzhou Co Ltd
Current assignee: Panasonic Wanbao Appliances Compressor Guangzhou Co Ltd
Priority date: 2009-01-13
Filing date: 2009-01-13
Publication date: 2009-12-09
Anticipated expiration: 2019-01-13

Abstract

The utility model discloses a liquid receiver of a compressor, which comprises a casing, an inner pipe, a filter screen and a connecting pipe connected with the outside; a hopper structure including a straight pipe segment and a conical pipe segment is positioned at the upper end part of the inner pipe of the liquid receiver; and the pipe diameter of the straight pipe segment is greater than that of the lower pipe body. The utility model ensures the low cost, simultaneously forms the supercharging effect, enlarges the refrigerating capacity of the compressor, effectively weakens the vortex strength of airflow and reduces the loss of the local resistance, thereby reducing noises and input power and achieving the noise reduction and energy saving effects.

Description

A kind of compressor liquid storage device

Technical field

The utility model relates to compressor field, particularly a kind of compressor liquid storage device.

Background technology

Existing compressor liquid storage device comprises as shown in Figure 1: upper end tube connector 1, lower end tube connector 5, the shell, the interior pipe 7` that are made up of upper and lower covers and housing 4, and the net-filter assembly of being made up of filter screen 2, filter screen pressure ring, backing plate 3.One end of upper end tube connector 1 is arranged on the outside, upper end of loam cake, and the other end is arranged on the inside, lower end of loam cake; Loam cake extends out, and is placed in the top of housing 4; Net-filter assembly is arranged on housing 4 inside, and with the air inlet pipe adjacency; Interior pipe has two kinds of patterns: a kind of is integrated by interior pipe 7` and lower end tube connector 5, and interior tube shape is the L type, directly is inserted in the compressor pump; Another kind is made up of interior straight tube 7` and lower end tube connector 5 for being separately made, and straight tube stretches out outer the weldering with lower end tube connector 5 employing stoves of lower cover and is connected.

The interior pipe 7` of above-mentioned compressor liquid storage device is a straight tube, compares with space in the loam cake, and interior pipe 7` mouth of pipe place is equivalent to dwindle suddenly, and constriction coefficient is little, and resistance coefficient ξ is bigger, and air-breathing local resistance and pressure loss are also bigger.When interior pipe 7` diameter increased gradually, owing to resistance coefficient ξ descends, inspiratory resistance reduced, and compressor power input decreases, but because refrigerant flow rate descends, compressor refrigerating capacity also will have decline by a relatively large margin; Simultaneously, dynamic property gas noise is the main noise source of compressor, and the pressure gas noise of rolling rotor compressor is the above high-frequency noise of 1kHz.Pipe 7` flow velocity quickens suddenly in entering in cold media gas reservoir housing 4 chambeies, the fluid impact wall increases the confusion of air-flow, form stronger vortex district, special bigger, the interior pipe 7` of reservoir housing 4 external diameters caliber hour, the air-breathing interior pipe 7` of reservoir porch is easy to generate strong vortex district during compressor operating, and noise can rise by a relatively large margin.

Disclose a kind of compressor liquid storage device in the clear 60-50767 of day disclosure communique, horn mouth is adopted in the pipe upper end in it, and refrigerant subtracts by noise is low to some extent during the pipe horn mouth in the described reservoir, and resistance also descends to some extent; But, aggravated the disturbance state of fluid, so noise may rise once more because the refrigerant fluid still is in the interior pipe that turbulent condition just directly flows to less caliber immediately after entering horn mouth.

Summary of the invention

For addressing the above problem, the purpose of this utility model provides a kind of compressor liquid storage device, and its inspiratory resistance is less little to the compressor refrigerating capacity influence simultaneously, and noise is lower.

The purpose of this utility model is achieved in that a kind of compressor liquid storage device, comprise shell, interior pipe, net-filter assembly and the tube connector that links to each other with the outside, it is characterized in that: the upper end of pipe is the funnel structure that includes straight length and taper pipeline section in described, and the caliber of this straight length is greater than the caliber of bottom body.

The 1/7-1/5 of pipe total length in the flow development length of described upper end accounts for.

The caliber of the straight length of described upper end be the bottom body caliber 1.2-2 doubly.

The angle of throat of the taper pipeline section of described upper end is 5-20 °.

Pipe is be made into integration with the lower end tube connector in described, or is separately made and is connected to form one.

Pipe is provided with more than one or one in described.

The utility model is a funnel structure by the interior pipe upper end expander with reservoir, the pipeline section on top is long-pending bigger than bottom body, and rate of flow of fluid can be accelerated when managing in refrigerant is inhaled into, and makes that entering cylinder refrigerant mass flow strengthens, form " crossing on-effect ", compressor refrigerating capacity rises; Make simultaneously enter in the reservoir housing chamber in the constriction coefficient Cc that so dwindles of rostrum become big, resistance coefficient ξ is diminished, make air-breathing local resistance and pressure loss diminish; Simultaneously, oviduct has certain-length, makes to have prevented that caliber from changing the race conditio of aggravation fluid by the interior pipe that flows into less caliber when fluid is tending towards following current again; In addition, because interior pipe top caliber becomes big, the cold media gas flow velocity descends, thereby weakens voorticity.The utility model is guaranteeing cheaply simultaneously, forms " crossing on-effect " and increases compressor refrigerating capacity, and effectively weaken air-flow vortex intensity and reduce local resistance loss, thereby reduce noise and input power, reaches the noise reduction energy-saving effect.

Description of drawings

Fig. 1 is the reservoir structure chart of prior art;

Fig. 2 is the structure chart of the utility model reservoir;

Fig. 3 is the interior pipe upper end zoomed-in view of the utility model reservoir;

Fig. 4 is the inner tube structure schematic diagram of the utility model embodiment 1;

Fig. 5 is the inner tube structure schematic diagram of the utility model embodiment 2.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is further described, but the utility model is not limited to this specific examples.

Embodiment 1

The utility model as shown in Figure 2, basic structure is with existing compressor liquid storage device, the net-filter assembly of being made up of upper end tube connector 1, housing 4, interior pipe 7, lower end tube connector 5, dividing plate 6 and filter screen 2, filter screen pressure ring, backing plate 3 constitutes.Interior pipe 7 can be provided with more than one or one as required, adopts pipe in the present embodiment.

As shown in Figure 3, on the basis of the above, interior pipe 7 comprises the upper end 71 of funnel structure, the bottom body 72 of straight tube-like.Upper end 71 is for including the funnel structure of straight length and taper pipeline section, and the caliber of its straight length is greater than the caliber of bottom body 72.Preferably, the 1/7-1/5 of pipe 7 total lengths in described upper end 71 flow development length L account for; The caliber of described upper end 71 straight lengths is 1.2-2 a times of bottom body 72 calibers; Being 5 °-20 ° with angle of throat β and dwindling gradually of the taper pipeline section of described upper end 71.As Fig. 4, interior pipe 7 and lower end tube connector 5 link into an integrated entity by the stove weldering for being separately made again.In the present embodiment, in upper end 71 flow development length L account for 1/6 of pipe 7 total lengths, the caliber of its straight length is 1.8 times of bottom body 72 calibers, being 10 ° with angle of throat β and dwindling gradually of taper pipeline section.

After the refrigerant of gas liquid mixture enters from upper end tube connector 1 together with the refrigerator oil that is dissolved in refrigerant, at first pass through filter screen 2, behind the filter of forming by filter screen pressure ring, backing plate 3, liquid part 9 wherein, it is the bottom that the mixture of refrigerator oil and liquid coolant accumulates in reservoir, after the liquid refrigerants gasification of accumulating, from the upper end 71 of the funnel structure of interior pipe 7 enter air-breathing in pipe 7 enter compressor pump, refrigerator oil and a spot of liquid coolant enter the pump housing by the aperture of interior pipe 7 bottoms.Because the pipeline section of interior pipe 7 upper ends 71 is long-pending bigger than bottom body 72,7 o'clock rate of flow of fluids of pipe can be accelerated in refrigerant was inhaled into, and made that entering cylinder refrigerant mass flow strengthens, and formed " crossing on-effect ", and compressor refrigerating capacity rises; Make simultaneously enter in the reservoir housing chamber in the constriction coefficient that so dwindles of rostrum become big, resistance coefficient is diminished, make air-breathing local resistance and pressure loss diminish; There is certain-length upper end 71, makes to have prevented that caliber from changing the race conditio of aggravation fluid by the bottom body 72 that flows into less caliber when fluid is tending towards following current again; In addition, because caliber becomes big, the cold media gas flow velocity descends, thereby weakens voorticity.Adopt inner tube structure of the present utility model, can form " crossing on-effect " and increase compressor refrigerating capacity, and effectively weaken air-flow vortex intensity and reduce local resistance loss, thereby reduce noise and input power, reach the noise reduction energy-saving effect.

Embodiment 2

In the present embodiment, interior pipe 7 and lower end tube connector 5 are for being made into integration, as shown in Figure 5.

Other structures are with embodiment 1.

Claims

1. compressor liquid storage device, comprise shell, interior pipe, net-filter assembly and the tube connector that links to each other with the outside, it is characterized in that: the upper end of pipe is the funnel structure that includes straight length and taper pipeline section in described, and the caliber of this straight length is greater than the caliber of bottom body.

2. a kind of compressor liquid storage device according to claim 1 is characterized in that: the 1/7-1/5 of pipe total length in the flow development length of described upper end accounts for.

3. a kind of compressor liquid storage device according to claim 1 is characterized in that: the caliber of the straight length of described upper end be the bottom body caliber 1.2-2 doubly.

4. a kind of compressor liquid storage device according to claim 1 is characterized in that: the angle of throat of the taper pipeline section of described upper end is 5-20 °.

5. a kind of compressor liquid storage device according to claim 1 is characterized in that: pipe is to be made into integration with the lower end tube connector in described, or is separately made and is connected to form one.

6. a kind of compressor liquid storage device according to claim 1 is characterized in that: pipe is provided with more than one or one in described.