阅读说明：本技术 一种三级螺杆压缩机 (Three-stage screw compressor ) 是由 姜勇 林圣玉 袁野 于 2020-04-23 设计创作，主要内容包括：本发明涉及螺杆压缩机领域,具体为一种三级螺杆压缩机,包括装置主体,装置主体内部上端开设有第一压缩腔,装置主体内部相对第一压缩腔外侧开设有水流槽,装置主体下端固定安装有减震底座,装置主体外侧固定安装有散热片,通过第一压缩腔、第二压缩腔中的阳转子分别通过从动齿轮咬合驱动电机主动齿轮的两侧,使得驱动电机能同时带动第一压缩腔与第二压缩腔启动进行空气压缩减少电能消耗的同时,能将第一压缩腔内压缩完的空气,利用第一通气道内进入第二压缩腔内再次压缩,从而降低了每一级的压缩比减少每一级压差,进而提高压缩过程的容积效率,使轴承负载也会更小提高轴承使用时间增加。(The invention relates to the field of screw compressors, in particular to a three-stage screw compressor, which comprises a device main body, wherein a first compression cavity is arranged at the upper end inside the device main body, a water flow groove is arranged at the outer side of the device main body opposite to the first compression cavity, a damping base is fixedly arranged at the lower end of the device main body, a radiating fin is fixedly arranged at the outer side of the device main body, the male rotors in the first compression cavity and the second compression cavity are respectively meshed with the two sides of the driving gear of the driving motor through the driven gear, so that the driving motor can simultaneously drive the first compression cavity and the second compression cavity to start up to reduce the air pressure and reduce the power consumption, the air compressed in the first compression cavity can enter the second compression cavity to be compressed again by utilizing the first air passage, thereby reducing the compression ratio of each stage and reducing the pressure difference of each stage, and further, the volume efficiency of the compression process is improved, the bearing load is smaller, and the service life of the bearing is prolonged.)

1. A three-stage screw compressor comprising a device body (1), characterized in that: first compression chamber (7) have been seted up to the inside upper end of device main part (1), rivers groove (6) have been seted up to the inside relative first compression chamber (7) outside of device main part (1), device main part (1) lower extreme fixed mounting has vibration damping mount (2), device main part (1) outside fixed mounting has fin (3).

2. A three-stage screw compressor according to claim 1, characterized in that: the damping base (2) is internally and fixedly provided with buffering outer rods (4) on the left and right sides, and buffering inner rods (5) are movably sleeved inside the buffering outer rods (4).

3. A three-stage screw compressor according to claim 2, characterized in that: the buffering outer rods (4) are arranged in an overlapped mode and are arranged in an X shape.

4. A three-stage screw compressor according to claim 1, characterized in that: the device is characterized in that a second compression cavity (8) is formed in the lower end of the left side in the device body (1), a third compression cavity (9) is formed in the lower end of the right side in the device body (1), and male rotors in the first compression cavity (7) and the second compression cavity (8) are respectively meshed with the two sides of a driving gear of a driving motor through a driven gear.

5. Three-stage screw compressor according to claim 4, characterized in that: and the male rotor in the third compression cavity (9) is meshed and connected with the right end of the male rotor in the second compression cavity (8).

6. A three-stage screw compressor according to claim 1, characterized in that: the water flow groove (6) is arranged outside the first compression cavity (7) at intervals of continuous equal distance, and the radiating fins (3) are connected with the water flow groove (6).

7. Three-stage screw compressor according to claim 6, characterised in that: the water flow cavity (17) is formed in the left side and the right side of the relative water flow groove (6) in the device body (1), the right ends of the male rotor and the female rotor in the first compression cavity (7) are communicated to the inside of the water flow cavity (17) respectively, the right ends of the male rotor and the female rotor in the first compression cavity (7) are fixedly provided with a telescopic outer rod (12), and a telescopic inner rod (13) is sleeved in the telescopic outer rod (12) in a movable mode.

8. Three-stage screw compressor according to claim 7, characterized in that: the telescopic inner rod (13) is characterized in that a convex block (14) is fixedly connected to the outer side of the right end of the telescopic inner rod (13), a chute (15) is formed in the right side of the inner portion of the water flow cavity (17), and the left side of the chute (15) is in a continuous right-angled triangular ring shape.

9. A three-stage screw compressor according to claim 1, characterized in that: the male rotor and the female rotor in the first compression cavity (7) are both arranged in a hollow mode, a driving groove (18) is formed in the female rotor, and a water outlet hole (10) is formed in the left end of the male rotor in the first compression cavity (7).

10. A three-stage screw compressor according to claim 1, characterized in that: and the outer sides and the inner sides of the second compression cavity (8) and the third compression cavity (9) are provided with a water flow groove (6) and a water flow cavity (17) which have the same structure as the first compression cavity (7) and a male-female rotor.

Technical Field

The invention relates to the field of screw compressors, in particular to a three-stage screw compressor.

Background

The screw compressors are divided into single screw compressors and double screw compressors, which were originally proposed by german in 1878 by h.krigar, and the technology was not established until 1934 by a royalty institute of technology, a.lysholm, sweden, and started to be applied industrially, and the development thereof has been rapidly advanced.

However, under the high-pressure working condition of the existing two-stage screw compressor with the exhaust pressure of 2.5-4.0 mpa, the suction-exhaust pressure ratio and the pressure difference of the main machine are huge at the moment. The service life of the bearing is greatly shortened, the rotor is seriously abraded and deformed under the long-time operation, and then the host is damaged and seized, so that the practicability of the motor is reduced.

Disclosure of Invention

The utility model provides a tertiary helical-lobe compressor to improve the compressor and in the high pressure operating mode's under the discharge pressure 2.5 ~ 4.0mpa host computer life host computer efficiency, reduce noise and vibration, and improve the radiating effect.

The utility model provides a tertiary helical-lobe compressor, includes the device main part, first compression chamber has been seted up to the inside upper end of device main part, the inside relative first compression chamber outside of device main part has seted up the rivers groove, device main part lower extreme fixed mounting has vibration damping mount, device main part outside fixed mounting has the fin.

Preferably, the left side and the right side inside the damping base are fixedly provided with buffering outer rods, and buffering inner rods are movably sleeved inside the buffering outer rods.

Preferably, the buffer outer rods are arranged in an overlapping manner and in an X shape.

Preferably, the lower end of the left side in the device main body is provided with a second compression cavity, the lower end of the right side in the device main body is provided with a third compression cavity, and the male rotors in the first compression cavity and the second compression cavity are respectively meshed with two sides of a driving gear of the driving motor through a driven gear.

Preferably, the male rotor in the third compression chamber is in meshed connection with the right end of the male rotor in the second compression chamber.

Preferably, the water flow grooves are arranged outside the first compression cavity at intervals of continuous equal intervals, and the cooling fins and the water flow grooves are connected.

Preferably, the left side and the right side of the water flow groove in the device main body are provided with a water flow cavity, the right ends of the male rotor and the female rotor in the first compression cavity are communicated to the inside of the water flow cavity respectively, the right ends of the male rotor and the female rotor in the first compression cavity are fixedly provided with a telescopic outer rod, and a telescopic inner rod is movably sleeved inside the telescopic outer rod.

Preferably, the outer side of the right end of the telescopic inner rod is fixedly connected with a convex block, the right side of the inner part of the water flow cavity is provided with a chute, and the left side of the chute is in a continuous right-angled triangular ring shape.

Preferably, the male rotor and the female rotor in the first compression cavity are both arranged in a hollow manner, a driving groove is formed in the female rotor, and a water outlet hole is formed in the left end of the male rotor in the first compression cavity.

Preferably, the outer side and the inner side of the second compression cavity and the third compression cavity are both provided with a water flow groove, a water flow cavity and male and female rotors which have the same structure as the first compression cavity.

Compared with the prior art, the invention has the following beneficial effects:

1. the male rotors in the first compression cavity and the second compression cavity are respectively meshed with two sides of a driving gear of the driving motor through the driven gear, so that the driving motor can simultaneously drive the first compression cavity and the second compression cavity to start up for air pressure reduction and less electric power consumption, simultaneously, air which is compressed in the first compression cavity can enter the second compression cavity to be compressed again by utilizing the first air channel, thereby reducing the compression ratio of each stage and reducing the pressure difference of each stage, further improving the volume efficiency of the compression process, leading the bearing load to be smaller and improving the service life of a bearing, further prolonging the service life of a device main body, wherein the male rotors in the third compression cavity are meshed with the right end of the male rotors in the second compression cavity, further reducing the electric power use, and simultaneously leading the air in the second compression cavity to enter the third compression cavity by utilizing the second air channel, thereby further reducing the compression ratio and the pressure difference and further prolonging the service life of the bearing.

2. Have the buffering outer pole through the inside left and right sides fixed mounting of vibration damping mount, and the inside activity of buffering outer pole has cup jointed the interior pole of buffering, make when the device main part when vibrations about the operation produces, can push the interior pole of buffering into the buffering outer pole through the effort of overcoming the spring, thereby absorb vibrations, the rethread buffering outer pole is two settings of overlapping, and set up for the X form, make can use the middle-end to rotate through making the buffering outer pole earlier when the device main part applys the effort to the buffering inner pole, make the interior pole of buffering again overcome the effort of spring under the state of slope and carry out the inside removal, thereby when guaranteeing to absorb the vibrations that the device main part produced, the displacement distance of maximum reduction device main part.

3. The water flow grooves are arranged on the outer side of the first compression cavity at intervals of continuous equal intervals, so that the heat generated during air compression can be transferred to the water in the water flow grooves while the first compression cavity is ensured to be stable, and then the heat is radiated to the outside through the radiating fins, so that the heat dissipation efficiency of the device is greatly improved, simultaneously, the vibration and the noise emitted by the first compression cavity can be absorbed through water, the right ends of the male rotor and the female rotor in the first compression cavity are respectively communicated to the inner part of the water flow cavity, so that when the male rotor and the female rotor in the first compression cavity rotate, the telescopic outer rod at the right end and the telescopic inner rod can be driven to rotate together, the spiral sheet on the outer side of the telescopic inner rod can be driven to rotate, the water in the water flow cavity and the water flow grooves is driven to move leftwards, the inner rod cooling effect of the first compression cavity is improved, and the convex blocks arranged, the lug can be driven to move along the track of the chute when the telescopic inner rod rotates, the left side of the chute is in a continuous right-angled triangular ring shape, so that the lug can drive the spiral piece to move left and right to improve the effect of driving water flow, the speed when the spiral piece moves left is faster than that when the spiral piece moves right, and the efficiency of driving water flow to move left by the spiral piece can be improved.

4. Through the setting of first compression intracavity portion positive rotor and negative rotor cavity, and the drive groove has been seted up to inside, make the rivers of right side rivers intracavity left shift can directly get into the inside rivers chamber of following the left side of negative and positive rotor and come out again, then from rivers groove at the time of flowing back to form the circulation, when making further improve first compression chamber cooling effect, can utilize the drive groove that the inside slope of negative and positive rotor set up, then when rivers pass through, can exert the effort to the drive groove, thereby improve the rotation rate of negative and positive rotor, improve air compression's efficiency, all be provided with rivers groove and the rivers chamber with the same structure in the first compression chamber outside through second compression chamber and third compression chamber outside, make second compression chamber and third compression chamber can obtain the effect the same with first compression chamber.

Drawings

FIG. 1 is a front view of the main body of the apparatus of the present invention;

FIG. 2 is an internal perspective view of the vibration damping mount of the present invention;

FIG. 3 is an inside perspective view of the damping outer rod of the present invention;

FIG. 4 is a top perspective view of the device body of the present invention;

FIG. 5 is an enlarged view taken at A of FIG. 4 in accordance with the present invention;

FIG. 6 is a front perspective view of the device body of the present invention;

FIG. 7 is a left side sectional view of the first compression chamber of the present invention;

FIG. 8 is a schematic view of the chute of the present invention;

FIG. 9 is a schematic view of a drive slot of the present invention;

fig. 10 is a right side view of the telescoping outer pole of the present invention.

In FIGS. 1-10: the device comprises a device body 1, a damping base 2, a cooling fin 3, a buffering outer rod 4, a buffering inner rod 5, a water flowing groove 6, a first compression cavity 7, a second compression cavity 8, a third compression cavity 9, a water outlet hole 10, a first air channel 11, a telescopic outer rod 12, a telescopic inner rod 13, a lug 14, a chute 15, a second air channel 16, a water flowing cavity 17 and a driving groove 18.

Detailed Description

Please refer to fig. 1 to 10, a schematic plan structure and a schematic perspective structure of a three-stage screw compressor.

The utility model provides a tertiary helical-lobe compressor, includes device main part 1, and first compression chamber 7 has been seted up to the inside upper end of device main part 1, and rivers groove 6 has been seted up to the inside relative first compression chamber 7 outside of device main part 1, and 1 lower extreme fixed mounting of device main part has vibration damping mount 2, and 1 outside fixed mounting of device main part has fin 3.

In concrete implementation, the inside left and right sides fixed mounting of vibration damping mount 2 has buffering outer rod 4, and the inside activity of buffering outer rod 4 has cup jointed buffering interior pole 5 for when device main part 1 vibrations about the operation produces, can be through overcoming the effort of spring with buffering interior pole 5 impress in buffering outer rod 4, thereby absorb vibrations.

In the concrete implementation, the buffering outer rod 4 is two overlapped settings, and is the setting of X form for can make buffering outer rod 4 use the middle-end to rotate as the centre of a circle through can making earlier the device main part 1 when applying the effort to buffering interior pole 5, make buffering interior pole 5 overcome the effort of spring and carry out inward movement under the state of slope again, thereby when guaranteeing to absorb the vibrations that device main part 1 produced, the displacement distance of maximum reduction device main part 1.

In the concrete implementation, the second compression chamber 8 has been seted up to the inside left side lower extreme of device main part 1, the third compression chamber 9 has been seted up to the inside right side lower extreme of device main part 1, first compression chamber 7, the positive rotor in the second compression chamber 8 passes through the both sides of driven gear interlock driving motor driving gear respectively, make the driving motor function drive first compression chamber 7 simultaneously with the start-up of second compression chamber 8 carry out the little electric energy consumption of air pressure reduction, can be with the air that has compressed in the first compression chamber 7, utilize and get into second compression chamber 8 in the first air duct 11 and compress once more, thereby reduced the compression ratio of each grade and reduced each grade pressure differential, and then improve compression process's volumetric efficiency, make bearing load also can improve bearing live time and increase for a short time.

In specific implementation, the male rotor in the third compression cavity 9 is engaged with the right end of the male rotor in the second compression cavity 8, so that the use of electric energy is further reduced, and simultaneously, air in the second compression cavity 8 can enter the third compression cavity 9 through the second vent passage 16, so that the compression ratio and the pressure difference are further reduced, and the service life of the bearing is further prolonged.

In concrete implementation, rivers groove 6 sets up in the first compression chamber 7 outside for the interval of continuous equidistance, and fin 3 sets up for being connected with rivers groove 6 for can guarantee the aquatic of heat transfer to rivers inslot 6 that produces when first compression chamber 7 is stable, the rethread fin outwards effluvium, thereby when improving the radiating efficiency of device greatly, can absorb vibrations and the noise that first compression chamber 7 sent through water.

In concrete implementation, rivers chamber 17 has been seted up to the left and right sides of the inside relative rivers groove 6 of device main part 1, positive rotor communicates to rivers chamber 17 inside respectively with the negative rotor right-hand member in the first compression chamber 7, positive rotor and negative rotor right-hand member fixed mounting have flexible outer pole 12 in the first compression chamber 7, flexible inner pole 13 has been cup jointed in the inside activity of flexible outer pole 12, make when the negative rotor is rotatory in the first compression chamber 7, the flexible outer pole 12 that can drive the right-hand member rotates with flexible inner pole 13 together, so that the flight in the flexible inner pole 13 outside is ordered about to the energy rotates, order about rivers chamber 17 and the water in the rivers groove 6 and remove left, thereby improve the cooling effect to first compression chamber.

In concrete implementation, pole 13 right-hand member outside fixedly connected with lug 14 in the extension and contraction, chute 15 has been seted up on the inside right side in rivers chamber 17, chute 15 left side is the cyclic annular setting of continuous right-angle triangle, then pole 13 can be driven lug 14 when extension and contraction is rotatory and remove along chute 15's orbit, be the cyclic annular setting of continuous right-angle triangle on the left of chute 15, when making lug 14 can drive the flight to remove and improve drive rivers effect, speed when can letting the left shift will be faster than when the right shift, thereby can improve the flight and drive the efficiency that rivers removed left.

In concrete implementation, the inside positive rotor of first compression chamber 7 is the cavity setting with the negative rotor, and drive groove 18 has been seted up to inside, apopore 10 has been seted up to the inside positive rotor left end of first compression chamber 7, make the rivers that move left in the right side rivers intracavity can directly get into the inside rivers chamber of following the left side again of negative and positive rotor and come out, then form the circulation at the time of returning from rivers groove 6, when making further improve the 7 cooling effect in first compression chamber, can utilize the drive groove 18 that the inside slope of negative and positive rotor set up, then when rivers pass through, can exert the effort to drive groove 18, thereby improve the rotation rate of negative and positive rotor.

In specific implementation, the outer sides and the inner sides of the second compression cavity 8 and the third compression cavity 9 are provided with the water flow groove 6 and the water flow cavity 17 which have the same structure as the first compression cavity 7 and the male and female rotors, and the outer sides of the second compression cavity 8 and the third compression cavity 9 are provided with the water flow groove 6 and the water flow cavity 17 which have the same structure as the outer side of the first compression cavity 7, so that the second compression cavity 8 and the third compression cavity 9 can obtain the same effect as the first compression cavity 7.

The working principle of the three-stage screw compressor is as follows.

Firstly, the male rotors in the first compression cavity 7 and the second compression cavity 8 respectively engage with two sides of a driving gear of a driving motor through a driven gear, so that the driving motor can simultaneously drive the first compression cavity 7 and the second compression cavity 8 to start to reduce air pressure and reduce electric energy consumption, simultaneously, air which is completely compressed in the first compression cavity 7 can enter the second compression cavity 8 to be compressed again by utilizing the first air channel 11, thereby reducing the compression ratio of each stage and reducing the pressure difference of each stage, further improving the volume efficiency of the compression process, leading the bearing load to be smaller and improving the service life of a bearing, further prolonging the service life of the device main body 1, wherein the male rotors in the third compression cavity 9 are engaged with the right end of the male rotors in the second compression cavity 8, so that the electric energy use is further reduced, and simultaneously, the air in the second compression cavity 8 can enter the third compression cavity 9 by utilizing the second air channel 16, thereby further reducing the compression ratio and the pressure difference and further prolonging the service life of the bearing, then the left side and the right side inside the damping base 2 are fixedly provided with the buffering outer rods 4, and the buffering inner rods 5 are movably sleeved inside the buffering outer rods 4, so that when the device body 1 generates left-right vibration during operation, the buffering inner rods 5 can be pressed into the buffering outer rods 4 by overcoming the acting force of the spring so as to absorb the vibration, then the buffering outer rods 4 are arranged in two overlapped and X-shaped arrangements, so that when the device body 1 applies acting force to the buffering inner rods 5, the buffering outer rods 4 can rotate by taking the middle end as the center of a circle by the energy pioneers, and then the buffering inner rods 5 can move inwards by overcoming the acting force of the spring in an inclined state, thereby ensuring that the displacement distance of the device body 1 is reduced to the maximum degree while the vibration generated by the device body 1 is absorbed, then the water flow groove 6 is arranged at the outer side of the first compression cavity 7 at intervals of continuous equal distance, so that the heat generated during air compression can be transferred to the water in the water flow groove 6 while the first compression cavity 7 is ensured to be stable, and then the heat is radiated to the outside through the radiating fins, thereby greatly improving the heat radiation efficiency of the device, simultaneously, the vibration and noise emitted by the first compression cavity 7 can be absorbed through water, the right ends of the male rotor and the female rotor in the first compression cavity 7 are respectively communicated to the inside of the water flow cavity 17, so that when the male rotor and the female rotor in the first compression cavity 7 rotate, the telescopic outer rod 12 at the right end and the telescopic inner rod 13 can be driven to rotate together, so that the spiral sheet at the outer side of the telescopic inner rod 13 can be driven to rotate, the water flow cavity 17 and the water in the water flow groove 6 are driven to move leftwards, thereby improving the cooling effect of the first compression cavity, and then the convex block 14 arranged in the chute 15 is fixedly connected, when the telescopic inner rod 13 rotates, the convex block 14 can be driven to move along the track of the chute 15, and the left side of the chute 15 is in a continuous right-angled triangular ring shape, so that the convex block 14 can drive the spiral piece to move left and right to improve the effect of driving water flow, and simultaneously, the speed when the spiral piece moves left is faster than that when the spiral piece moves right, so that the efficiency of the spiral piece driving water flow to move left can be improved, wherein the male rotor and the female rotor in the first compression cavity 7 are both in a hollow arrangement, and the driving groove 18 is arranged in the first compression cavity, so that water flow moving left in the right water flow cavity can directly enter the interior of the male rotor and the female rotor and then flow out of the left water flow cavity, and then circulation is formed from the water flow groove 6, so that the cooling effect of the first compression cavity 7 can be further improved, the driving groove 18 obliquely arranged in the male rotor and the female rotor can be, thereby improve the rotational speed of negative and positive rotor, improve air compression's efficiency, all be provided with the rivers groove 6 and the rivers chamber 17 with the same structure in first compression chamber 7 outside through second compression chamber 8 and third compression chamber 9 outsides for second compression chamber 8 and third compression chamber 9 can obtain the effect the same with first compression chamber 7.