CN112324514B - Expander and air conditioner - Google Patents
Expander and air conditioner Download PDFInfo
- Publication number
- CN112324514B CN112324514B CN202011272748.9A CN202011272748A CN112324514B CN 112324514 B CN112324514 B CN 112324514B CN 202011272748 A CN202011272748 A CN 202011272748A CN 112324514 B CN112324514 B CN 112324514B
- Authority
- CN
- China
- Prior art keywords
- air suction
- suction channel
- groove
- sliding
- sliding part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
- F01C1/356—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F01C1/3562—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/18—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Abstract
The present disclosure provides an expander and an air conditioner, the expander including: the air cylinder is provided with a sliding groove, and the air cylinder is also provided with a first air suction channel and a second air suction channel; the head of the first sliding part is connected with the roller and can move along with the rotation of the roller, and the head of the first sliding part can enable the second sliding part to intermittently open the first air suction channel and intermittently close the first air suction channel along with the movement of the first sliding part; the first air suction channel can be communicated with the outside of the air cylinder, the second air suction channel can be communicated with the expansion cavity, and an angle theta is formed between a central axis line segment of the first air suction channel and a central axis line segment of the second air suction channel and is larger than or equal to 90 degrees and smaller than or equal to 180 degrees. According to the air suction device, the air suction channel can be intermittently opened or closed, the air suction channel is less in air suction bending, the generated pressure loss is greatly reduced, the strength of the crankshaft is improved, and the reliability is high.
Description
Technical Field
The disclosure relates to the technical field of expanders, in particular to an expander and an air conditioner.
Background
In vapor compression refrigeration systems, throttling elements are important elements for maintaining the pressure differential between the condenser and the evaporator and for controlling the flow of the conditioning system, and throttling elements commonly used in domestic and commercial refrigeration equipment are throttling valves and capillary tubes. Whether a throttle valve or a capillary tube, the working principle is to utilize local resistance loss along the way to rapidly reduce the pressure of the refrigerant. Throttling losses are irreversible losses that reduce the thermodynamic integrity of the cycle. Theoretically, if a reversible adiabatic expansion process is used for replacing an irreversible isenthalpic throttling process, the entropy increase of a system can be reduced, and the thermodynamic perfection of the system is improved. The expander can theoretically realize reversible adiabatic expansion of the refrigerant, and realize energy recovery and utilization.
Patent No. CN105179020B discloses an expander having an expander suction port and an expander discharge port, in a fluid machine and a refrigeration cycle apparatus. The suction hole of the expander is opened and closed along with the rotation of the shaft, when the shaft rotates to a suction angle, the first high-pressure fluid channel of the expander is communicated with the second high-pressure fluid channel through the crankshaft groove, namely, the suction hole is in an open state, and when the shaft rotates to an expansion angle, the crankshaft groove is staggered with the first high-pressure fluid channel and the second high-pressure fluid channel, namely, the suction hole is in a closed state. This structure has the following problems:
1. the first high-pressure fluid channel and the second high-pressure fluid channel of the expansion machine are not coaxial, and the fluid is bent greatly in the flowing process to cause pressure loss;
2. the crankshaft groove is arranged on the crankshaft short shaft, and after high-pressure fluid is introduced into the groove, a radial impact force is exerted on the crankshaft short shaft, so that the bending deformation of the crankshaft is increased, and the operation of the expansion machine is unstable;
3. the short shaft of the crankshaft is provided with the groove, so that the bearing surface of the crankshaft is reduced, and the strength of the crankshaft is reduced;
4. the control mode has the hidden trouble of insufficient reliability, along with the increase of the running time, the abrasion between the crankshaft short shaft and the flange is increased, so that the gap between the crankshaft short shaft and the flange is increased, the sealing effect is further reduced, and the leakage is easily caused when high-pressure fluid flows through the groove;
5. the high-pressure fluid in the groove can damage a lubricating oil film of the crankshaft short shaft, so that lubrication failure is caused, abrasion is caused, and abraded particles can enter the cylinder through the second high-pressure fluid channel, so that a pump body fails;
because the expander in the prior art has the technical problems of pressure loss and the like caused by large bending in the fluid flowing process in the air suction process, the expander and the air conditioner are researched and designed according to the disclosure.
BRIEF SUMMARY OF THE PRESENT DISCLOSURE
Therefore, the technical problem to be solved by the present disclosure is to overcome the defect of the prior art that the expander has a large bending during the fluid flowing process during the air suction process, which causes pressure loss, thereby providing an expander and an air conditioner.
In order to solve the above problem, the present disclosure provides an expander, comprising:
the air cylinder is provided with a sliding groove, the air cylinder is also provided with a first air suction channel and a second air suction channel, the first air suction channel is intersected with the sliding groove, and the first air suction channel is communicated with the second air suction channel; an expansion cavity is defined by the cylinder, the roller and the first sliding part;
the first sliding part is arranged in the sliding groove, the second sliding part is also arranged in the sliding groove, the second sliding part is arranged opposite to the tail part of the first sliding part, the head part of the first sliding part is connected with the roller and can move along with the rotation of the roller, and the second sliding part can intermittently open the first air suction channel and intermittently close the first air suction channel along with the movement of the first sliding part;
the first air suction channel can be communicated with the outside of the air cylinder, the second air suction channel can be communicated with the expansion cavity, an angle theta is formed between a central axis line segment of the first air suction channel and a central axis line segment of the second air suction channel, and the angle theta is larger than or equal to 90 degrees and smaller than or equal to 180 degrees.
In some embodiments, one end of the first sliding portion is hinged to the roller; and/or the central axis of the chute is perpendicular to the central axis of the first air suction channel; and/or the central axis of the second air suction channel is parallel to the central axis of the chute; and/or the central axis of the first air suction channel is perpendicular to the central axis of the second air suction channel.
In some embodiments, the second sliding part is disposed in the sliding groove and can intersect with the first air suction channel, and the second sliding part can move towards the first sliding part to open the first air suction channel, and can move away from the first sliding part to close the first air suction channel.
In some embodiments, the second sliding portion includes a first end surface and a second end surface opposite to each other, the first end surface is opposite to the tail portion of the first sliding portion and forms a space therebetween, the first sliding portion can form a pressure smaller than that at the second end surface in the space when moving in a direction away from the second sliding portion, and the second end surface can be communicated with the first air suction channel, so that the second sliding portion moves in a direction of the first sliding portion under the action of a pressure difference.
In some embodiments, a first elastic member is disposed in the separation space, one end of the first elastic member is connected to the tail portion of the first sliding portion, and the other end of the first elastic member is connected to the second sliding portion, and the first elastic member can apply an elastic restoring force to the second sliding portion in a direction away from the first sliding portion.
In some embodiments, a first receiving groove is further provided at the first end surface of the second sliding portion, and the other end of the first elastic member is disposed in the first receiving groove; and/or one end of the first elastic component is abutted with the tail part of the first sliding part; and/or the other end of the first elastic component is abutted with the second sliding part; and/or the number of the first elastic parts is at least two.
In some embodiments, a cylinder back pressure hole is further formed in the cylinder, and one end of the cylinder back pressure hole is communicated with the second air suction channel, and the other end of the cylinder back pressure hole is communicated with the sliding groove; still be provided with gleitbretter back pressure passageway on the first slider, just the gleitbretter back pressure passageway one end with interval space intercommunication, the other end can be in the motion process of first slider with cylinder back pressure hole intermittent type nature's intercommunication.
In some embodiments, the slide back pressure channel includes a first back pressure groove, a second back pressure groove, and a third back pressure groove, the first back pressure groove is disposed on the tail portion of the first sliding portion and extends from the inside of the first sliding portion toward the head portion, the second back pressure groove is disposed on the side surface of the first sliding portion and faces the second suction channel, the third back pressure groove is disposed inside the first sliding portion, one end of the third back pressure groove is communicated with the first back pressure groove, and the other end of the third back pressure groove is communicated with the second back pressure groove; when the second back pressure groove is opposite to the cylinder back pressure hole, the cylinder back pressure hole is communicated with the sliding sheet back pressure channel so as to conduct the gas in the second air suction channel to the spacing space.
In some embodiments, a second receiving groove is disposed at the second end surface, one end of the second receiving groove is disposed on the second end surface of the second sliding portion, and the other end of the second receiving groove extends from the inside of the second sliding portion toward the first end surface, and a second elastic member is further disposed in the second receiving groove, one end of the second elastic member is connected to the inner wall of the sliding groove, and an elastic restoring force toward the first sliding portion can be applied to the second sliding portion by the second elastic member.
In some embodiments, a via hole is further provided at the first end surface of the second sliding part, the via hole being capable of communicating the space with the second accommodation groove; a blocking structure is further connected to one end, facing the first end face, of the second elastic component, and when the blocking structure is pushed by the second elastic component to abut against the via hole, the via hole is blocked; the via hole is opened when the blocking structure is pushed to be spaced apart from the via hole by the pressure in the spacing space.
In some embodiments, when the pressure in the space is equal to or greater than the pressure in the second accommodation groove + the elastic force of the second elastic member, the blocking structure is pushed to open the via hole so that the gas is introduced from the space into the second accommodation groove; when the pressure in the space is less than the pressure in the second accommodation groove + the elastic force of the second elastic member, the blocking structure is pushed to close the via hole so that the gas between the space and the second accommodation groove is not communicated.
In some embodiments, the exhaust gas treatment device further comprises a first flange disposed at an axial side end surface of the cylinder, and a flange discharge groove is disposed at an axial end surface of the first flange opposite to the cylinder, and the flange discharge groove communicates with the exhaust passage of the cylinder to perform exhaust.
In some embodiments, the flange discharge groove extends in an axial direction of the first flange, and the expander further includes a flange discharge passage having one end communicating with the flange discharge groove and the other end extending and communicating to an outside of the first flange.
In some embodiments, the flange discharge passage extends in a radial direction of the first flange, and the other end of the flange discharge passage communicates to a radially outer peripheral surface of the first flange.
In some embodiments, the exhaust gas treatment device further comprises a first flange disposed at an axial side end surface of the cylinder, and a flange discharge groove is disposed at an axial end surface of the first flange opposite to the cylinder, and the flange discharge groove communicates with the exhaust passage of the cylinder to perform exhaust.
In some embodiments, the flange discharge groove extends in an axial direction of the first flange, and the expander further includes a flange discharge passage having one end communicating with the flange discharge groove and the other end extending and communicating to an outside of the first flange.
In some embodiments, the flange discharge passage extends in a radial direction of the first flange, and the other end of the flange discharge passage communicates to a radially outer peripheral surface of the first flange.
The present disclosure also provides an air conditioner including the expander of any one of the preceding claims.
The expander and the air conditioner have the following beneficial effects that:
1. the air suction channel is intermittently opened or closed within a certain angle range along with the rotation of the roller in one period of the rotation of the roller, and is composed of at least two parts (including a first air suction channel and a second air suction channel), an angle theta is clamped between a central axis line segment of the first air suction channel and a central axis line segment of the second air suction channel and is more than or equal to 90 degrees and less than or equal to 180 degrees, so that the air suction channel is bent less (namely the bending angle is larger), the slope is gentle), compared with the existing fluid channel with a large bend, the high-pressure fluid disclosed by the invention has the advantages that the pressure loss generated when flowing is greatly reduced, and the pressure drop is greatly reduced; and the structure that no circulation hole or groove is arranged on the crankshaft enables the impact of high-pressure fluid on the crankshaft (especially the crankshaft short shaft) to be small, the strength of the crankshaft (especially the crankshaft short shaft) is effectively improved, the reliability is high, and the operation is stable.
2. Compared with the defects that a groove is formed in a crankshaft in the prior art, so that the sealing effect is poor, the lubrication is poor, and the abrasion is generated between a crankshaft short shaft and a flange, the sliding sheet and the sliding sheet groove are in plane contact fit, the second sliding part is used for controlling the suction of fluid, the control mode is plane contact, the motion resistance is small, the sealing effect is good, and an oil film is easily formed; the sliding sheet and the sliding sheet groove are matched with a plane, the machining precision is high, the abrasion is not easy, the reliability is high, the reciprocating motion of the sliding sheet is more difficult to abrade than the rotary motion of the crankshaft in the prior art for forming the groove, and the reliability is high.
Drawings
Fig. 1 is an exploded view of the expander of the present disclosure;
FIG. 2 is a schematic illustration of a cylinder + lower flange partial fluid flow passage of the expander of the present disclosure;
FIG. 3 is a schematic cross-sectional view of the pump body (beginning of suction) with the rollers moving into engagement with the chutes in the expander of the present disclosure;
fig. 4 is a sectional schematic view of the pump body of the expander of the present disclosure with the roller rotated clockwise by a small angle on the basis of fig. 3 (suction state);
FIG. 5 is a schematic cross-sectional view of the pump body of the expander of the present disclosure with the roller rotated clockwise a small angle further on the basis of FIG. 4 (suction starts to close);
fig. 6 is an enlarged cross-sectional view of the interfacing position of the hinged slide (i.e., first slide) and the control slide (i.e., second slide) in the expander of the present disclosure;
fig. 7 is a perspective view of a hinged slider (i.e., a first sliding portion) in the expander of the present disclosure;
fig. 8 is a perspective view of a control vane (i.e., a second slide portion) in the expander of the present disclosure;
fig. 9 is a perspective view of a lower flange (i.e., a first flange) in the expander of the present disclosure;
fig. 10 is a perspective view of a cylinder in the expander of the present disclosure.
The reference numerals are represented as:
1. a cylinder; 11. a chute; 12. a first air intake passage; 13. a second air suction passage; 14. a cylinder back pressure hole; 15. an exhaust passage; 2. a first sliding part (or hinged slide); 21. a head portion; 22. a tail portion; 23. a slide plate back pressure channel; 231. a first back pressure groove; 232. a second back pressure groove; 233. a third back pressure groove; 3. a second sliding part (or control slide); 31. a first end face; 32. a second end face; 33. a first accommodating groove; 34. a second accommodating groove; 35. a via hole; 4. a roller; 5. an expansion chamber; 6. an intervening space; 71. a first elastic member; 72. a second elastic member; 73. a blocking structure; 8. a first flange (i.e., a lower flange); 81. a flange discharge groove; 82. a flange discharge passage; 9. a second flange (i.e., an upper flange); 10. a crankshaft.
Detailed Description
As shown in fig. 1-10, the present disclosure provides an expander comprising:
the air cylinder comprises an air cylinder 1, a first sliding part 2, a second sliding part 3 and a roller 4, wherein a sliding groove 11 is formed in the air cylinder 1, a first air suction channel 12 and a second air suction channel 13 are further formed in the air cylinder 1, the first air suction channel 12 is intersected with the sliding groove 11, and the first air suction channel 12 is communicated with the second air suction channel 13; an expansion cavity 5 is enclosed among the cylinder 1, the roller 4 and the first sliding part 2,
the first sliding part 2 is arranged in the sliding chute 11, the second sliding part 3 is also arranged in the sliding chute 11, the second sliding part 3 is arranged opposite to the tail part 22 of the first sliding part 2, the head part 21 of the first sliding part 2 is connected with the roller 4 and can move along with the rotation of the roller 4, and the movement of the first sliding part 2 can cause the second sliding part 3 to intermittently open the first air suction channel 12 and intermittently close the first air suction channel 12;
the first air suction channel 12 can be communicated with the outside of the cylinder, the second air suction channel 13 can be communicated with the expansion cavity 5, and an angle theta is formed between a central axis line segment of the first air suction channel 12 and a central axis line segment of the second air suction channel 13, and the angle theta is larger than or equal to 90 degrees and smaller than or equal to 180 degrees.
The air suction channel is intermittently opened or closed within a certain angle range along with the rotation of the roller in one period of the rotation of the roller, and is composed of at least two parts (including a first air suction channel and a second air suction channel), an angle theta is clamped between a central axis line segment of the first air suction channel and a central axis line segment of the second air suction channel and is more than or equal to 90 degrees and less than or equal to 180 degrees, so that the air suction channel is bent less (namely the bending angle is larger), the slope is gentle), compared with the existing fluid channel with a large bend, the high-pressure fluid disclosed by the invention has the advantages that the pressure loss generated when flowing is greatly reduced, and the pressure drop is greatly reduced; and the structure that no circulation hole or groove is arranged on the crankshaft enables the impact of high-pressure fluid on the crankshaft (especially the crankshaft short shaft) to be small, the strength of the crankshaft (especially the crankshaft short shaft) is effectively improved, the reliability is high, and the operation is stable.
Compared with the defects that a groove is formed in a crankshaft in the prior art, so that the sealing effect is poor, the lubrication is poor, and the abrasion is generated between a crankshaft short shaft and a flange, the sliding sheet and the sliding sheet groove are in plane contact fit, the second sliding part is used for controlling the suction of fluid, the control mode is plane contact, the motion resistance is small, the sealing effect is good, and an oil film is easily formed; the sliding sheet and the sliding sheet groove are matched with a plane, the machining precision is high, the abrasion is not easy, the reliability is high, the reciprocating motion of the sliding sheet is more difficult to abrade than the rotary motion of the crankshaft in the prior art for forming the groove, and the reliability is high.
In some embodiments, one end of the first sliding part 2 is hinged to the roller 4; and/or the central axis of the chute 11 is perpendicular to the central axis of the first air suction channel 12; and/or the central axis of the second air suction channel 13 is parallel to the central axis of the chute 11; and/or the central axis of the first air suction channel 12 is perpendicular to the central axis of the second air suction channel 13. According to the sliding device, the first sliding part is hinged with the roller, so that the first sliding part can linearly move along the first sliding groove along with the rotation of the roller, the first sliding part is effectively prevented from being separated from the roller, and expansion cavities of the first sliding part at two sides along the circumferential direction of the cylinder are not communicated with each other; as shown in fig. 2, the second sliding chute extends transversely to communicate with the first sliding chute, and the second air suction channel extends vertically to communicate with the second sliding chute, and at the same time, the air suction channel is bent slightly at the position and is communicated to the expansion cavity inside the cylinder through the first air suction channel.
In some embodiments, the second sliding part 3 is disposed in the sliding groove 11 and can intersect with the first air suction channel 12, and the second sliding part 3 can move towards the first sliding part 2 to open the first air suction channel 12, and the second sliding part 3 can move away from the first sliding part 2 to close the first air suction channel 12. According to the air suction device, the second sliding portion is arranged in the sliding groove and is intersected with the first air suction channel, the second sliding portion can move along the sliding groove and can open or close the first air suction channel, and further preferably, the second sliding portion moves towards the first sliding portion, so that one end, far away from the first sliding portion, of the second sliding portion opens the first air suction channel, air suction is opened, the second sliding portion moves towards the direction far away from the first sliding portion, so that one end, far away from the first sliding portion, of the second sliding portion closes the first air suction channel, air suction is closed, and the function of intermittently opening or closing air suction is effectively completed.
In some embodiments, the second sliding part 3 includes a first end surface 31 and a second end surface 32 opposite to each other, the first end surface 31 is opposite to the tail of the first sliding part 2 and forms a spacing space 6 therebetween, when the first sliding part 2 moves in a direction away from the second sliding part 3, a pressure smaller than that at the second end surface 32 can be formed in the spacing space 6, and the second end surface 32 can be communicated with the first air suction channel 12, so that the second sliding part 3 moves in the direction of the first sliding part 2 under the action of a pressure difference. This is a further preferred structural form of the second sliding portion of the present disclosure, through the arrangement of the spacing space, the first moving portion can form a pressure smaller than that at the second end face in the spacing space when moving in a direction away from the second sliding portion, and the second end face of the second sliding portion can communicate with the suction pressure, so as to effectively drive the second sliding portion to move in a direction towards the first sliding portion, and open the suction channel through the pressure difference to perform suction.
In some embodiments, a first elastic member 71 (preferably, a thick spring) is disposed in the space 6, one end of the first elastic member 71 is connected to the tail of the first sliding portion 2, and the other end is connected to the second sliding portion 3, and the first elastic member 71 can apply an elastic restoring force to the second sliding portion 3 in a direction away from the first sliding portion 2. According to the air suction device, the first elastic component is arranged in the interval space, so that after the air suction reaches a certain time or the roller rotates within a certain angle range, the first elastic component applies elastic restoring force to the second sliding part to drive the second sliding part to move towards the direction far away from the first sliding part, and then the air suction is closed.
In some embodiments, a first receiving groove 33 is further provided at the first end surface 31 of the second sliding portion 3, and the other end of the first elastic member 71 is disposed in the first receiving groove 33; and/or, one end of the first elastic member 71 abuts against the tail of the first sliding part 2; and/or the other end of the first elastic member 71 abuts against the second sliding portion 3; and/or at least two first elastic components 71 are provided. This openly can effectively hold first elastomeric element's the other end in wherein through first holding tank, first elastomeric element's one end and the afterbody butt of first sliding part, first elastomeric element's the other end and second sliding part butt can play the effect that promotes to first elastomeric element through first sliding part, first elastomeric element is in compression state, produces the elastic force that promotes second sliding element downstream downwards, can produce bigger, and more balanced elastic restoring force through more than two first elastomeric element, and first holding tank and first elastomeric element one-to-one set up.
In some embodiments, a cylinder back pressure hole 14 is further disposed on the cylinder 1, and one end of the cylinder back pressure hole 14 is communicated with the second air suction channel 13, and the other end is communicated with the chute 11; still be provided with gleitbretter back pressure passageway 23 on the first slider 2, just gleitbretter back pressure passageway 23 one end with interval space 6 intercommunication, the other end can be in the motion process of first slider 2 with cylinder back pressure hole 14 intermittent type nature's intercommunication. This is disclosed through setting up of cylinder back pressure hole, can follow the second air suction channel and introduce the gas of breathing in, act on the second sliding part in the interval space behind the gleitbretter back pressure channel, be applicable to this moment and reach certain time or roller rotation certain angle scope after admitting air, first sliding part up-wards moves to the position that gleitbretter back pressure channel and cylinder back pressure hole communicate, make the pressure of the upper and lower terminal surface of second sliding part equal, be the suction pressure, and the elastic force through first elastic construction can effectively drive second sliding part downstream to seal first air suction channel this moment, thereby accomplish the effect of self-closing breathing in.
In some embodiments, the slide back pressure channel 23 includes a first back pressure groove 231, a second back pressure groove 232, and a third back pressure groove 233, the first back pressure groove 231 is disposed on the tail portion 22 of the first slide portion 2 and extends from the inside of the first slide portion toward the head portion 21, the second back pressure groove 232 is disposed on the side of the first slide portion 2 and faces the second suction channel 13, the third back pressure groove 233 is disposed inside the first slide portion, and one end of the third back pressure groove 233 communicates with the first back pressure groove 231 and the other end communicates with the second back pressure groove 232; when the second back pressure groove 232 is opposite to the cylinder back pressure hole 14, the cylinder back pressure hole 14 communicates with the vane back pressure channel 23 to conduct the gas in the second suction channel 13 to the separation space 6.
This is the still further preferred structural style of gleitbretter back pressure passageway of this disclosure, can lead to gas to the interstitial space in through first back pressure groove, and the second back pressure groove can be followed cylinder back pressure hole and is communicate and inhale gas, and the third back pressure groove plays the effect of first and second back pressure groove of effective intercommunication.
In some embodiments, a second receiving groove 34 is disposed at the second end surface 32, one end of the second receiving groove 34 is disposed on the second end surface 32 of the second sliding portion 3, the other end extends from the inside of the second sliding portion 3 toward the first end surface 31, and a second elastic member 72 (preferably, a thin spring) is further disposed in the second receiving groove 34, one end of the second elastic member 72 is connected to the inner wall of the sliding slot 11, and an elastic restoring force toward the first sliding portion 2 can be applied to the second sliding portion 3 through the second elastic member 72.
The present disclosure also enables, by the second housing groove structure provided at the second end face of the second sliding portion, provision of a second elastic member therein, the second elastic member functioning to abut the blocking structure at the position of the via hole, preventing gas from entering the space from the second housing groove, but enabling gas entering the space from the cylinder back pressure hole to be discharged into the suction passage through the second housing groove, to effectively discharge the gas in the space.
In some embodiments, a through hole 35 is further provided at the first end face 31 of the second sliding part 3, and the through hole 35 can communicate the space 6 with the second receiving groove 34; a blocking structure 73 (preferably, a small ball) is further connected to an end of the second elastic member 72 facing the first end surface 31, and the via hole 35 is blocked when the blocking structure 73 is pushed by the second elastic member 72 to abut against the via hole 35; when the blocking structure 73 is pushed by the pressure in the space 6 to be spaced apart from the via hole 35, the via hole 35 is opened. This disclosed via hole and block structure mating reaction, and cooperation second elastic construction effectively blocks up the via hole with block structure, prevents that gas from getting into accommodation space in holding from the second, and make when the gas pressure among the accommodation space is too high through the via hole, promote the bobble and leave, and discharge to the suction channel in passing through the second accommodation tank with too much gas.
In some embodiments, when the pressure in the space 6 is equal to or greater than the pressure in the second accommodation groove 34 + the elastic force of the second elastic member 72, the blocking structure 73 is pushed to open the through hole 35, so that the gas is guided from the space 6 into the second accommodation groove 34; when the pressure in the space 6 is less than the pressure in the second accommodation groove 34 + the elastic force of the second elastic member 72, the blocking structure 73 is pushed to close the through hole 35 so that the gas between the space 6 and the second accommodation groove 34 is not communicated. This is the preferred relationship between the pressure in the space and the second housing tank and the elastic force of the second elastic member according to the present disclosure, and the blocking structure is opened to discharge the excessive gas when the space is at a high pressure (when the excessive gas is present), and the blocking structure connected by the second elastic member blocks the via hole when the space is at a low pressure (when the excessive gas is not present), thereby playing a role of automatically opening the via hole to discharge the excessive gas in the space.
In some embodiments, the exhaust gas purification device further comprises a first flange 8, the first flange 8 is disposed at an axial side end face of the cylinder 1, a flange discharge groove 81 is disposed at an axial end face of the first flange 8 opposite to the cylinder 1, and the flange discharge groove 81 is communicated with the exhaust passage of the cylinder 1 to perform exhaust. The present disclosure also enables the gas in the exhaust passage to be effectively conducted to the flange discharge groove and discharged to the outside of the expander through the flange discharge groove provided on the first flange.
In some embodiments, the flange discharge groove 81 extends in the axial direction of the first flange 8, and the expander further includes a flange discharge passage 82, one end of the flange discharge passage 82 communicating with the flange discharge groove 81, the other end extending and communicating to the outside of the first flange 8. Through the communication arrangement of the flange discharge groove and the flange discharge channel, the valve sheet discharge groove is communicated with exhaust gas from the exhaust channel in the axial direction, and the flange discharge channel is communicated with the gas in the discharge groove and discharges the gas outwards.
In some embodiments, the flange discharge passage 82 extends in a radial direction of the first flange 8, and the other end of the flange discharge passage 82 communicates to a radially outer peripheral surface of the first flange 8. This is the preferred form of construction of the flange discharge slots of the present disclosure, i.e., the form of radially extending channels.
The present disclosure also provides an air conditioner including the expander of any one of the preceding claims.
1. The utility model provides a two gleitbretter control structure of breathing in improves, articulated gleitbretter and control gleitbretter are in same gleitbretter inslot, through the cooperation of articulated gleitbretter with the control gleitbretter, realize the control process of breathing in of expander.
2. The hinged sliding sheet is provided with a sliding sheet back pressure channel for leading fluid in the suction channel into the space between the hinged sliding sheet and the control sliding sheet.
3. And two small ends of the control slip sheet are respectively provided with a thin spring accommodating groove and a thick spring accommodating groove.
4. The cylinder is provided with a cylinder back pressure hole which is used for being matched with a sliding sheet back pressure channel on the hinged sliding sheet to enable the expansion machine to complete the process of fluid intake
FIG. 1 is an exploded view of the present invention, including upper flange, rollers, hinged sliding vane, cylinder, crankshaft, control sliding vane, thin spring, thick spring, small ball, lower flange.
FIG. 2 is a schematic view of a flow channel of the present invention showing fluid entering an expansion chamber (defined by upper and lower flanges, rollers, cylinders, and hinged vanes) from a suction channel, expanding and then exiting a discharge channel of the lower flange.
Fig. 3-6 are schematic views of expander fluid intake control structures. FIG. 3 shows the expander in an initial state with the control vane tail separating the suction passage into two parts and the hinged vane tail pressing tightly against the control vane; figure 4 shows that as the fluid in the expansion chamber expands, the hinged slide moves with the roller, the hinged slide moves with the control slide under the action of atmospheric pressure (the air pressure between the hinged slide and the control slide is lower than the air pressure at the head of the control slide), the control slide is lifted, and the fluid enters the expansion chamber from the suction channel; the expander continues to rotate, when the back pressure channel of the hinged sliding piece is communicated with the back pressure hole of the air cylinder, the space between the hinged sliding piece and the control sliding piece is filled with fluid as shown in fig. 5, the pressure of the space is the same as the tail pressure of the control sliding piece, the control sliding piece is pushed to the bottom of the air cylinder under the action of the spring force, the suction channel is sealed, and the process of fluid intake of the expander is finished.
Fig. 6 is a schematic view of the hinged sliding vane, and a sliding vane back pressure channel is disposed on the hinged sliding vane for introducing the fluid in the suction channel between the hinged sliding vane and the control sliding vane.
FIG. 8 is a schematic view of a control slide with thin and thick spring receiving slots at two small ends of the control slide.
FIG. 9 is a schematic view of the lower flange with the expanded fluid being discharged from the lower flange discharge passage.
FIG. 10 is a schematic view of the cylinder with a cylinder return pressure hole for cooperating with a return pressure channel of a sliding vane on the hinged sliding vane to complete the process of fluid intake of the expander. The expanded fluid is discharged to the lower flange through the cylinder discharge groove.
The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure. The foregoing is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present disclosure, and these modifications and variations should also be regarded as the protection scope of the present disclosure.
Claims (14)
1. An expander, characterized in that: the method comprises the following steps:
the air cylinder comprises an air cylinder (1), a first sliding part (2), a second sliding part (3) and a roller (4), wherein a sliding groove (11) is formed in the air cylinder (1), a first air suction channel (12) and a second air suction channel (13) are further formed in the air cylinder (1), the first air suction channel (12) is intersected with the sliding groove (11), and the first air suction channel (12) is communicated with the second air suction channel (13); an expansion cavity (5) is enclosed among the cylinder (1), the roller (4) and the first sliding part (2),
the first sliding part (2) is arranged in the sliding chute (11), the second sliding part (3) is also arranged in the sliding chute (11), the second sliding part (3) is arranged opposite to the tail part (22) of the first sliding part (2), the head part (21) of the first sliding part (2) is connected with the roller (4) and can move along with the rotation of the roller (4), and the second sliding part (3) can intermittently open the first air suction channel (12) and intermittently close the first air suction channel (12) along with the movement of the first sliding part (2);
the first air suction channel (12) can be communicated with the outside of the cylinder, the second air suction channel (13) can be communicated with the expansion cavity (5), an angle theta is formed between a central axis line segment of the first air suction channel (12) and a central axis line segment of the second air suction channel (13), and the angle theta is more than or equal to 90 degrees and less than or equal to 180 degrees;
the second sliding portion (3) comprises a first end face (31) and a second end face (32) which are opposite to each other, the first end face (31) is opposite to the tail portion of the first sliding portion (2) and a spacing space (6) is formed between the first end face and the second end face, when the first sliding portion (2) moves towards the direction far away from the second sliding portion (3), pressure smaller than the second end face (32) can be formed in the spacing space (6), the second end face (32) can be communicated with the first air suction channel (12), and therefore the second sliding portion (3) moves towards the direction of the first sliding portion (2) under the action of pressure difference.
2. The expander according to claim 1, wherein:
one end of the first sliding part (2) is hinged with the roller (4); and/or the central axis of the chute (11) is perpendicular to the central axis of the first air suction channel (12); and/or the central axis of the second air suction channel (13) is parallel to the central axis of the chute (11); and/or the central axis of the first air suction channel (12) is perpendicular to the central axis of the second air suction channel (13).
3. The expander according to claim 1, wherein:
the second sliding part (3) is arranged in the sliding groove (11) and can be intersected with the first air suction channel (12), the second sliding part (3) can move towards the first sliding part (2) to open the first air suction channel (12), and the second sliding part (3) can move towards the direction far away from the first sliding part (2) to close the first air suction channel (12).
4. The expander according to claim 1, wherein:
a first elastic component (71) is arranged in the interval space (6), one end of the first elastic component (71) is connected with the tail part of the first sliding part (2), the other end of the first elastic component is connected with the second sliding part (3), and the first elastic component (71) can apply elastic restoring force to the second sliding part (3) in the direction far away from the first sliding part (2).
5. The expander according to claim 4, wherein:
a first accommodating groove (33) is further formed in the first end face (31) of the second sliding part (3), and the other end of the first elastic part (71) is arranged in the first accommodating groove (33); and/or one end of the first elastic component (71) is abutted with the tail part of the first sliding part (2); and/or the other end of the first elastic member (71) abuts against the second sliding part (3); and/or at least two first elastic components (71).
6. The expander according to claim 1, wherein:
the cylinder (1) is also provided with a cylinder back pressure hole (14), one end of the cylinder back pressure hole (14) is communicated with the second air suction channel (13), and the other end of the cylinder back pressure hole is communicated with the sliding groove (11); still be provided with gleitbretter back pressure passageway (23) on first slider (2), just the one end of gleitbretter back pressure passageway (23) with interval space (6) intercommunication, the other end can be in the motion process of first slider (2) with cylinder back pressure hole (14) intermittent type nature's intercommunication.
7. The expander according to claim 6, wherein:
the slide sheet back pressure channel (23) comprises a first back pressure groove (231), a second back pressure groove (232) and a third back pressure groove (233), the first back pressure groove (231) is arranged on the tail part (22) of the first sliding part (2) and extends from the inside of the first sliding part towards the head part (21), the second back pressure groove (232) is arranged on the side surface of the first sliding part (2) and faces the second air suction channel (13), the third back pressure groove (233) is arranged inside the first sliding part, one end of the third back pressure groove (233) is communicated with the first back pressure groove (231), and the other end of the third back pressure groove (233) is communicated with the second back pressure groove (232); when the second back pressure groove (232) is opposite to the cylinder back pressure hole (14), the cylinder back pressure hole (14) is communicated with the sliding piece back pressure channel (23) so as to conduct the gas in the second air suction channel (13) to the spacing space (6).
8. The expander according to claim 1, wherein:
the second end face (32) is provided with a second accommodating groove (34), one end of the second accommodating groove (34) is arranged on the second end face (32) of the second sliding portion (3), the other end of the second accommodating groove extends from the inside of the second sliding portion (3) to the direction of the first end face (31), a second elastic component (72) is further arranged in the second accommodating groove (34), one end of the second elastic component (72) is connected with the inner wall of the sliding groove (11), and the second elastic component (72) can apply elastic restoring force to the second sliding portion (3) to the direction of the first sliding portion (2).
9. The expander according to claim 8, wherein:
a through hole (35) is further formed in the first end face (31) of the second sliding part (3), and the through hole (35) can communicate the spacing space (6) with the second accommodating groove (34); a blocking structure (73) is further connected to one end of the second elastic member (72) facing the first end surface (31), and the via hole (35) is blocked when the blocking structure (73) is pushed by the second elastic member (72) to abut against the via hole (35); the via hole (35) is opened when the blocking structure (73) is pushed by the pressure in the spacing space (6) to be spaced from the via hole (35).
10. The expander according to claim 9, wherein:
when the pressure in the space (6) is equal to or greater than the pressure in the second accommodation groove (34) + the elastic force of the second elastic member (72), the blocking structure (73) is pushed to open the through hole (35) so that the gas is guided from the space (6) into the second accommodation groove (34); when the pressure in the space (6) is less than the pressure in the second accommodation groove (34) + the elastic force of the second elastic member (72), the blocking structure (73) is pushed to close the through hole (35) so that the gas between the space (6) and the second accommodation groove (34) is not communicated.
11. The expander according to any one of claims 1 to 10, wherein:
the exhaust device is characterized by further comprising a first flange (8), wherein the first flange (8) is arranged on the end face of one axial side of the cylinder (1), a flange discharge groove (81) is formed in the position, opposite to the end face of the cylinder (1), of the first flange (8), and the flange discharge groove (81) is communicated with an exhaust channel of the cylinder (1) to discharge air.
12. The expander according to claim 11, wherein:
the flange discharge groove (81) extends in an axial direction of the first flange (8), and the expander further includes a flange discharge passage (82), one end of the flange discharge passage (82) communicating with the flange discharge groove (81), and the other end extending and communicating to an outside of the first flange (8).
13. The expander according to claim 12, wherein:
the flange discharge passage (82) extends in the radial direction of the first flange (8), and the other end of the flange discharge passage (82) communicates to the radially outer peripheral surface of the first flange (8).
14. An air conditioner, characterized in that: comprising the expander of any one of claims 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011272748.9A CN112324514B (en) | 2020-11-13 | 2020-11-13 | Expander and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011272748.9A CN112324514B (en) | 2020-11-13 | 2020-11-13 | Expander and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112324514A CN112324514A (en) | 2021-02-05 |
| CN112324514B true CN112324514B (en) | 2021-11-09 |
Family
ID=74317616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011272748.9A Active CN112324514B (en) | 2020-11-13 | 2020-11-13 | Expander and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112324514B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005113863A (en) * | 2003-10-10 | 2005-04-28 | Matsushita Electric Ind Co Ltd | Hermetic electric compressor |
| JP2005214038A (en) * | 2004-01-28 | 2005-08-11 | Mitsubishi Electric Corp | Rotary compressor |
| CN202579189U (en) * | 2011-11-17 | 2012-12-05 | 合肥凌达压缩机有限公司 | Rotary compressor with function of enthalpy increase of sprayed gas |
| CN103321907B (en) * | 2012-03-22 | 2016-07-06 | 广东美芝制冷设备有限公司 | Rotary compressor |
| US9175684B2 (en) * | 2014-02-27 | 2015-11-03 | John McIntyre | Abutment rotary pump with repelling magnets |
| CN204827928U (en) * | 2015-07-24 | 2015-12-02 | 珠海凌达压缩机有限公司 | Pump body subassembly, compressor and indirect heating equipment |
| CN107654376A (en) * | 2016-07-25 | 2018-02-02 | 清华大学 | A kind of single cylinder compressor with rolling rotor and supplementing method for air with second vapor injection structure |
| JP6834371B2 (en) * | 2016-11-08 | 2021-02-24 | 株式会社富士通ゼネラル | Rotary compressor |
-
2020
- 2020-11-13 CN CN202011272748.9A patent/CN112324514B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112324514A (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6430959B1 (en) | Economizer injection ports extending through scroll wrap | |
| JP2012117519A (en) | Scroll compressor | |
| WO2021031489A1 (en) | Compressor having early exhaust function and air conditioning system | |
| CN102132045A (en) | Rotary compressor | |
| EP0401968B1 (en) | A rotary compressor | |
| CN112324514B (en) | Expander and air conditioner | |
| CN110805555B (en) | Pump body structure, compressor, air conditioner | |
| CN112324508B (en) | Expander and air conditioner | |
| CN112324509B (en) | Expander and air conditioner | |
| CN206592288U (en) | Rotary compressor | |
| CN112324513B (en) | Expander and air conditioner | |
| CN111075720B (en) | Compressor and refrigeration cycle system with same | |
| CN112502785B (en) | Expander and air conditioner | |
| CN112324510B (en) | Air suction structure of expansion machine, expansion machine and air conditioner | |
| CN210397094U (en) | Pump body assembly, rotary compressor and air conditioner | |
| CN103821719B (en) | Volume control type rotary compressor and there is its refrigerating circulatory device | |
| CN210423010U (en) | Compressor with advance exhaust function and air conditioning system | |
| JP4421359B2 (en) | Gas compressor | |
| JPS5944516B2 (en) | rotary compressor | |
| CN116816674A (en) | Fluid machine and heat exchange device | |
| JPS5840314Y2 (en) | Vane type refrigerant rotary compressor | |
| CN111734635A (en) | Pump body assembly and rotor compressor | |
| JPS6143991Y2 (en) | ||
| JPH0127279B2 (en) | ||
| JPS63176687A (en) | Applying device for vane back pressure in sliding vane type compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |