The discharge pulsating progressively decreasing apparatus of closed-type compressor
Technical field
The present invention relates to relevant closed-type compressor, the closed-type compressor discharge pulsating progressively decreasing apparatus of refrigeration agent damping after compression is successively decreased in pulsation that particularly relevant pressing chamber is discharged.
Background technique
In general compressor, refrigeration agent is transported to pressing chamber, the process of discharging refrigerant after overcompression is for compressor compresses the refrigeration agent in the exchange cycle.
As shown in Figure 1, air cylinder base 1 forms the pressing chamber 2 of compressed refrigerant, and above-mentioned air cylinder base 1 has to pressing chamber 2 and sucks refrigeration agents or compressed refrigeration agent is discharged to the valve assembly of pressing chamber 2 outsides.Valve assembly is by suction valve 3, valve pad plate 5, and expulsion valve 6 and sealing gasket 7 constitute, and are equipped with on the wherein above-mentioned valve pad plate 5 to pressing chamber 2 and suck the inlet hole 5i of refrigeration agent and the tap hole 5e that discharges to the outside from pressing chamber 2.In order to open and close inlet hole 5i, between valve pad plate 5 and air cylinder base 1, suction valve 3 is housed.The back side of suction valve 3 is housed, is close to valve pad plate 5 expulsion valve 6 is installed, on the back side expulsion valve 6 of valve pad plate 5 surface of contact, be close to and install backing plate 8p.In order to prevent to leak, between expulsion valve 6 and punch pad 8p, sealing gasket 7 is housed, the assembling of each parts is to be connected with air cylinder base with nut B by the bolt hole BH that connects each opposite position.
As shown in Figure 2, when the outside refrigeration agent that sucks was transported to pressing chamber by inlet hole 5i, the suction vibration damper 20 of the vibrations of successively decreasing was installed on the punch pad 8p, and among the figure, symbol 22 is suction pipes.Weld protecgulum 40 on punch pad 8p, form in the middle of it and discharge chamber 42, refrigeration agent is discharged to discharge chamber 42 by tap hole 5e after above-mentioned pressing chamber 2 compressions.The guiding refrigeration agent is installed on the punch pad 8p of 42 inside, above-mentioned discharge chamber through the guiding instrument 8g that sucks vibration damper 20, extends to above-mentioned suction vibration damper 20 and pressing chamber 2 by inlet hole 5i.
Installation extends to the discharge vibration damper 10 of discharging chamber 42, extends to the inside of discharging vibration damper 10 and discharges chamber 42 by pulse piping 11.Pulse piping 11 is round spiral, refrigeration agent is transported to the discharge tube 12 of discharging vibration damper 10 and discharging to the outside.
The process of the closed-type compressor compression refrigerant of prior art below is described.
The main circulating unit that constitutes with compressor, transmit refrigeration agent and be transported to suction vibration damper 20 by above-mentioned suction pipe 22, in sucking vibration damper 20, the successively decrease vibrations of refrigeration agent, action by above-mentioned suction valve 3, by inlet hole 5i to pressing chamber 2 refrigerant conveyings, in pressing chamber 2 inside, compressed refrigeration agent is transported to above-mentioned discharge chamber 42 according to the action of expulsion valve 6 by tap hole 5e.
Refrigeration agent flows on the above-mentioned discharge vibration damper 10 by above-mentioned pulse piping 11 in discharge chamber 42.On above-mentioned pulse piping 11 and discharge vibration damper 10, lowered the refrigeration agent of vibrations, be transported to the outside of compressor by discharge tube 12.
But there is following problem in the discharge vibrations progressively decreasing apparatus of above-mentioned structure.
Discharge the inside of vibration damper 10 above-mentioned pulse piping 11 is installed, pulse piping 11 is spiral, and is fixed by welding in narrow discharge vibration damper 10 inside of relative volume.Therefore, above-mentioned pulse piping 11 is rolled into the technology of spiral, also exist and discharging vibration damper 10 inside because of the problems such as complicated processes of wind spring shape pulse piping 11 are installed, pulse piping 11 and the distance of discharging between vibration damper 10 madial walls are relatively little, need to consider pulse piping 11 tail ends and discharge between vibration damper 10 madial walls problem such as spacing so exist.In addition, pulse piping 11 is fixed by welding in discharges vibration damper 10 inside, if the shakiness that pulse piping 11 is fixed in use will shake pulse piping 11, makes on the contrary to discharge on the vibration damper 10 and shakes.
Summary of the invention
The objective of the invention is to solve the problem that prior art exists, and provide a kind of discharge pulsating progressively decreasing apparatus of closed-type compressor, by simplifying the structure of discharge pulsating progressively decreasing apparatus, successively decrease to guarantee the refrigeration agent discharge vibrations after the closed-type compressor internal compression.
In order to solve the problems of the technologies described above, the technical solution used in the present invention provides a kind of discharge pulsating progressively decreasing apparatus of closed-type compressor, includes the punch pad that is installed on the air cylinder base; On described punch pad protecgulum is installed, protecgulum and described punch pad form discharges the chamber; Have two on the described punch pad and suck through hole and two discharge through holes, and this plate is connected with two vibration dampers; Be equipped with on described punch pad and import plate and derivation plate, importing plate and punch pad form suction chamber, derive plate and punch pad and form the pulsating progressively decreasing stream, compress the pulsation of the refrigeration agent of discharging the back with reduction; Wherein: described importing plate is the structure that is connected as a single entity with deriving plate.
On described derivation plate, be provided with whirlpool shape groove, on described derivation plate, also be provided with suction port and be communicated with described discharge chamber, the end of described pulsating progressively decreasing stream is discharged through hole with one of them and is communicated with, forming long relatively stream, thus the pulsation when successively decreasing the refrigeration agent discharge.
The invention has the beneficial effects as follows at compressor and discharge chamber interior, form the pulsating progressively decreasing apparatus of closed-type compressor owing to import plate with the derivation plate that is connected as a single entity, thereby reduced the quantity of compressor pulsating progressively decreasing apparatus component parts relatively.Because the derivation plate that is connected as a single entity with the importing plate is installed on the punch pad, and form the pulsating progressively decreasing stream, the operation of making the pulsating progressively decreasing stream becomes simple relatively, has improved the efficient of processing and assembling procedure.
Description of drawings
Fig. 1 is existing closed-type compressor main composition exploded perspective view;
Fig. 2 is the structural drawing of existing closed-type compressor discharge pulsating progressively decreasing apparatus protecgulum;
Fig. 3 is a closed-type compressor discharge pulsating progressively decreasing apparatus exemplary construction fragmentary cross-sectional view of the present invention;
Fig. 4 is the floor map of the importing plate and the derivation plate of example of the present invention;
Fig. 5 is the A-A sectional drawing of Fig. 4.
Among the figure:
1, air cylinder base 2, pressing chamber 3, suction valve
5, valve pad plate 6, expulsion valve 7, sealing gasket
8p, punch pad 8g, guiding instrument
10, discharge vibration damper 11, pulse piping 20, suction vibration damper
22, suction pipe 30, punch pad 32,33, suction through hole
34,35, discharge through hole
40, protecgulum 42, discharge chamber 50, importing plate
52, suction chamber 60, derivation plate 62, suction port
64, pulsating progressively decreasing stream 70, discharge vibration damper 72, discharge tube
Embodiment
Be described in further detail below in conjunction with the discharge pulsating progressively decreasing apparatus of the drawings and specific embodiments closed-type compressor of the present invention:
The discharge pulsating progressively decreasing apparatus structure of closed-type compressor of the present invention includes the punch pad 30 that is installed on the air cylinder base 1, be installed on the described punch pad 30 protecgulum 40 is arranged, form discharge chamber 42 with described punch pad 30, on described punch pad 30, have one and discharge through hole 34 and another discharge through hole 35, described punch pad 30 is provided with and imports plate 50 and derive plate 60, import and form suction chamber 52 between plate 50 and the punch pad 30, derive and form pulsating progressively decreasing stream 64 between plate 60 and the punch pad 30, described importing plate 50 is the structures that are connected as a single entity with deriving plate 60, and the refrigeration agent that compressor is carried reduces the pulsation when discharging.
Whirlpool shape groove is arranged deriving on the plate 60, derive plate 60 be provided with suction port 62 and with discharge chamber 42 and be communicated with, pulsating progressively decreasing stream 64 terminal with discharge through hole 35 and be communicated with, the stream of growing relatively with formation, thereby the pulsation when successively decreasing the refrigeration agent discharge.
Example in detail below with reference to closed-type compressor discharge pulsating progressively decreasing apparatus of the present invention.
As Fig. 3, Fig. 4 figure, shown in Figure 5, the suction vibration damper 20 that is installed on the air cylinder base 1 is the noise reduction parts that are transported to the refrigeration agent of pressing chamber after attenuating sucks from pressing chamber 2 outsides, and suction pipe 22 flows into refrigeration agents to above-mentioned suction vibration damper 20.Punch pad 30 and valve assembly together are installed on the air cylinder base 1, and the reverse side that contacts with above-mentioned valve assembly, protecgulum 40 is installed is made inner formation discharge chamber 42 with punch pad 30.
Becoming to discharge on the punch pad 30 of chamber 42 with protecgulum 40 mutual group, for refrigeration agent mobile offers a plurality of through holes, in order to be communicated with above-mentioned vibration damper 20 and the following suction chamber that will illustrate 52, at first, add suction chamber 52, for by suction chamber 52 and inlet hole 5i, and be communicated with pressing chamber 2, connect the inflow through hole 33 that above-mentioned punch pad 30 is offered.In order to discharge chamber 42 being discharged in pressing chamber 2 refrigerant compressed, discharge through hole 34 and run through above-mentioned punch pad 30, last, refrigeration agent will be from above-mentioned discharge chamber 42 be transported to by pulsating progressively decreasing stream 64 discharges vibration damper 70, and runs through another and discharge through hole 35.
In the inside of discharging chamber 42, the importing plate 50 and the derivation plate 60 that are connected as a single entity are installed on the above-mentioned punch pad 30, importing plate 50 lumps together with above-mentioned punch pad 30 and the suction chamber 52 of portion's formation within it, be that suction chamber 52 is formed between suction vibration damper 20 and the pressing chamber 2, be beneficial to refrigeration agent and be directed to pressing chamber 2.
As shown in Figure 4, derive plate 60 and import plate 50 and be connected as a single entity, derive the groove that forms Scroll-tupe on the plate 60 and also be combined to form pulsating progressively decreasing stream 64 with above-mentioned punch pad 30, above-mentioned pulsating progressively decreasing stream 64 plays the length of elongating stream to greatest extent, and to the pulsation of compressing the periodic refrigerating agent of discharging the back effect of successively decreasing, suction port 62 as above-mentioned pulsating progressively decreasing stream 64 inlets, to be communicated with above-mentioned discharge chamber 42 and pulsating progressively decreasing stream 64, above-mentioned pulsating progressively decreasing stream 64 discharge through holes 35 terminal and above-mentioned punch pad 30 are communicated with.Import the formation of plate 50 and derivation plate 60, as Fig. 5, Fig. 6, can be by carrying out fabrication and processing after the processing of calendering steel plate.
Install on the discharge vibration damper 70 at an end of above-mentioned punch pad 30, discharge vibration damper 70 is installed in and sucks the opposite position of vibration damper 20, on discharge vibration damper 70, discharge tube 72 is housed, plays the pulsation and the shock effect of lowering discharging refrigerant to outside refrigerant conveying.
The working procedure of the discharge pulsating progressively decreasing apparatus of closed-type compressor of the present invention below is described.
Compressor one starts, piston in the pressing chamber 2 is done straight reciprocating motion, and according to the motion of above-mentioned piston, pressing chamber 2 pressure inside will change, suck refrigerant according to the variation of pressure from the outside of compressor, and refrigerant compressed is discharged to the outside of compressor.
In suction process, by above-mentioned suction pipe 22 refrigeration agent is transported to suction vibration damper 20, sucking after vibration damper 20 lowers vibrations, by sucking through hole 32 refrigeration agent is being transported to suction chamber, the refrigeration agent that is transported to above-mentioned suction chamber flow into pressing chamber 2 by flowing into through hole 33 and inlet hole 5i.Be transported to the refrigeration agent of above-mentioned pressing chamber 2, be compressed through after the piston motion, through such compressed action, improve above-mentioned pressing chamber 2 pressure inside, at this moment, expulsion valve will be opened, and be discharged to by above-mentioned tap hole 5e and discharge through hole 34 at pressing chamber 2 inner compressed refrigeration agents and discharge chamber 42.
Be discharged to the refrigeration agent of above-mentioned discharge chamber 42, be transported to the inside of above-mentioned pulsating progressively decreasing stream 64, and lowering pulsation when being the relatively long pulsating progressively decreasing stream 64 of whirlpool shape flow path length by above-mentioned suction port 62.
Refrigeration agent through above-mentioned pulsating progressively decreasing stream 64, discharge through hole 35 by above-mentioned another and flow to discharge vibration damper 70, eliminate pulsation and vibrations in above-mentioned discharge vibration damper 70, subsequently, the refrigerant in the above-mentioned discharge vibration damper 70 is transported to the compressor outside by discharge tube 72.
The present invention has simplified the component parts that constitutes discharge pulsating progressively decreasing apparatus, makes assembling procedure become simple and easy, rationally, does not need special size management.