CN105351009B - Conical compression expands all-in-one and method - Google Patents

Abstract

A kind of conical compression expansion all-in-one and method of work, belong to energy-conserving and environment-protective field.It is characterized in that：Conical compression expansion all-in-one includes shell body（1）, first rotate fuse（2）Fuse is rotated with second（3）;Wherein first rotates fuse（2）Around shell body center line（4）Revolve round the sun and around the first rotating core subcenter line（5）Rotation；Second rotates fuse（3）Around the first rotating core subcenter line（5）Revolve round the sun and around the second rotating core subcenter line（6）During rotation；Eccentric rotary fuse is arranged in tapered channel, closing chamber is formed using eccentric rotary fuse rotary course, and integrate multiple eccentric rotors and rotate through journey and can realize compression and expansion to different working medium simultaneously, transmission mechanism can greatly then be simplified, and and then improve the economy of energy resource system, this kind equipment will have a wide range of applications.

Description

Conical compression and expansion integrated machine and method

technical field

The invention relates to a conical compression-expansion integrated machine and method, belonging to the field of energy saving and environmental protection.

Background technique

Compression and expansion of low-pressure gas are common processes in conventional energy systems. Especially for low-pressure and low-temperature operating conditions, the volume flow rate of gas working medium per unit mass is large. Common low-pressure compressors and expanders are bulky and expensive. Therefore, how to continue to reduce the structural size of the compressor and expander under the condition of large volume flow is still an important development direction in the future.

The analysis of the working process of scroll compressors and screw compressors common in existing energy systems shows that the above equipment can realize the compression of the working fluid during the forward rotation process, and can realize the expansion of the working fluid if it works in the reverse direction. If the characteristics of the above two types of positive displacement compressors are combined, the eccentric rotating core can be arranged in the conical channel, and the closed cavity can be formed by using the rotating process of the eccentric rotating core, and the rotating process of multiple eccentric rotors can be integrated to realize different working fluids at the same time. Compression and expansion can greatly simplify the transmission mechanism, and thus improve the economy of the energy system. This type of equipment will have a wide range of application values.

Contents of the invention

The object of the present invention is to provide a conical compression-expansion integrated machine and method, which can greatly simplify the transmission mechanism, and further improve the economy of the energy system.

A conical compression-expansion integrated machine, characterized in that it includes an outer casing, a first rotating core and a second rotating core, the first rotating core is located inside the outer casing, and the second rotating core is located inside the first rotating core ;

Among them, the inner contour surface of the housing, the outer contour surface of the first rotating core, the inner contour surface of the first rotating core, and the outer contour surface of the second rotating core are all spiral conical surface structures, and the cone angles are the same, all of which are c1, less than ^90o ;

The first rotating core revolves around the centerline of the outer casing and rotates around the centerline of the first rotating core, the centerline of the first rotating core and the centerline of the outer casing form an angle of a1; the second rotating core revolves around the center of the first rotating core When the line revolves and rotates around the center line of the second rotating core; the center line of the second rotating core forms an angle a2 with the center line of the first rotating core; the center line of the outer shell, the center line of the first rotating core and the second rotating core The sub-centerlines all pass through the vertex of the cone angle of the outer shell; the above-mentioned angle a1 is greater than the angle a2; all the above-mentioned revolutions and rotations are both clockwise or counterclockwise;

The cross-section at any axial position of the inner surface of the housing is an N-gon with a chamfer R1, and the cross-section at any axial position of the outer surface of the first rotating core is an N-1 polygon with a chamfer R1; The contact position between the outer contour surface of the first rotating core and the inner contour surface of the housing is N helical lines; the ratio of the axial pitch of the inner contour surface of the housing to the axial pitch of the outer contour surface of the first rotating core is N:N- 1, N is a natural number greater than 3;

The cross-section at any axial position of the inner surface of the first rotating core is an M polygon with a chamfer R2, and the cross-section at any axial position of the outer surface of the second rotating core is an M-gon with a chamfer R2. 1 polygon; the contact position between the outer contour surface of the second rotating core and the inner contour surface of the first rotating core is M helical lines; the axial pitch of the inner contour surface of the first rotating core and the outer contour of the second rotating core The ratio of the axial pitch of the surface is: M:M-1, and M is a natural number greater than 3.

The first rotating core revolves around the centerline of the outer casing and rotates around the centerline of the first rotating core. The relationship between the revolution angular velocity and the rotation angular velocity is N-1:N; the above speed relationship can ensure that the first working fluid inlet area increases from zero. To the maximum and then reduced to zero, so as to realize the suction and sealing of the first working fluid.

The second rotating core revolves around the center line of the first rotating core and rotates around the center line of the second rotating core. The relationship between the revolution angular velocity and the rotation angular velocity is M-1:M; the above speed ratio relationship can ensure that the second rotating core The spiral closed cavity formed by the inner contour surface and the inner contour surface of the first rotating core ensures that the inlet area of the second working fluid increases from zero to the maximum and then decreases to zero, thereby realizing the suction and sealing of the second working fluid.

According to the conical compression-expansion integrated machine of the present invention, the angle between the cut surface of the outer shell and the center line of the outer shell is c1, and the included angle is less than 90 ^° . The above angle requirements can ensure that the volume of the helical closed cavity formed between the outer surface of the first rotating core and the inner surface of the housing shrinks continuously when moving along the direction of the cone angle, which can realize the compression of the first working fluid; the second rotation The outer surface of the core and the inner surface of the first rotating core constitute a helical closed cavity, and the volume increases continuously when moving along the opposite direction of the cone angle, which can realize the expansion of the second working fluid.

According to the conical compression and expansion integrated machine of the present invention, the angle a1 is greater than the angle a2; the above angle requirements can ensure that the second rotating core does not appear when the center line of the second rotating core revolves around the center line of the first rotating core Interfering with the center line of the outer shell, that is, the situation that the rotating core is stuck.

The working method of the conical compression-expansion integrated machine according to the present invention is characterized in that:

Compression works by:

The first rotating core revolves around the centerline of the outer casing and rotates around the centerline of the first rotating core, so that the outer surface of the first rotating core rotates within the inner surface of the outer casing;

Since the chamfer of the N-1 polygon in the cross-section of the outer surface of the first rotating core is R1, it is the same as the chamfer of the N-gon in the cross-section of the inner surface of the shell;

The contact parts between the outer surface of the first rotating core and the inner surface of the housing are N helical lines; and each two adjacent helical lines have several intersection points;

A spiral closed cavity is formed between every two adjacent helical lines and their adjacent two intersection points, the outer profile surface of the first rotating core, and the inner profile surface of the shell;

While the center line of the first rotating core revolves around the center line of the outer shell and rotates on its own, the above-mentioned helical closed cavity moves in the direction of the cone angle along the axial direction, and the volume is continuously reduced. When the first working medium is filled in the helical closed cavity, the The working fluid is compressed, and the spiral closed cavity forms a compression chamber, thereby compressing the first working fluid;

Expansion working process:

When the second rotating core revolves around the center line of the first rotating core and rotates around the center line of the second rotating core, the outer surface of the second rotating core rotates within the inner surface of the first rotating core;

Because the chamfer of the M-1 polygon of the cross-section of the outer surface of the second rotating core is R2, it is the same as the chamfer of the M-gon of the cross-section of the inner surface of the first rotating core;

The contact parts between the outer profile surface of the second rotating core and the inner profile surface of the first rotating core are M helical lines; and each two adjacent helical lines have several intersection points;

Each adjacent two helical lines and their adjacent two intersection points form a spiral closed cavity with the outer contour surface of the second rotating core and the inner contour surface of the first rotating core;

When the center line of the second rotating core revolves around the center line of the first rotating core and rotates, the above-mentioned spiral closed cavity moves in the opposite direction of the cone angle along the axial direction, and the volume continues to increase. When the spiral closed cavity is filled with the second working Substance, then the working fluid expands, and the helical closed cavity constitutes an expansion cavity, so that the second working fluid can be expanded;

According to the conical compression and expansion integrated machine of the present invention, it is characterized in that: the first working medium at the entrance of the compression chamber is dry air, humid air, water vapor and other gases with a certain humidity; because the conical compression and expansion integrated machine The compression process is a volumetric compression process, and because the rotation speed of the first rotating core is not high, it can compress a variety of different gases, including conventional dry air, wet air and other gases with a certain humidity, and has a wide range of applications. gas adaptability;

The conical compression-expansion integrated machine according to the present invention is characterized in that: the second working medium at the inlet of the expansion chamber is dry air, humid air, water vapor and other gases with a certain humidity. Since the expansion process of the conical compression-expansion integrated machine is a volumetric expansion process, and because the rotation speed of the second rotating core is not high, it can be used for a variety of different gases, including conventional dry air, wet air and other gases with certain humidity. The gas is expanded, so it has a wide range of gas adaptability.

According to the conical compression-expansion integrated machine of the present invention, it can have multiple working modes: it can compress two kinds of working fluids at the same time, it can also expand two kinds of working fluids, and it can also be used for the compression and expansion of two kinds of working fluids , a working fluid expansion, a working fluid compression. When used in a compression-expansion integrated machine, since part of the expansion work is recovered in the process of realizing gas compression, it has certain energy-saving properties. In addition, since the compression process and expansion process are integrated in a unified device, it also has the advantage of a compact overall structure.

Due to the conical compression and expansion machine, different spiral profiles can be arranged on the outside and inside of the rotating core, so that the compression chamber and the expansion chamber can be formed, which makes it possible to design the integrated process of compression and expansion, and can be achieved by Two different profile parameters are optimized to achieve the best compression and expansion effects.

Description of drawings

Fig. 1 is a schematic structural diagram of a conical compression-expansion integrated machine;

Figure 2 is a schematic diagram of the shell structure;

Fig. 3 Schematic diagram of the structure of the first rotating core;

Fig. 4 is a schematic structural diagram of the second rotating core;

Symbols in the figure: 1. Outer shell, 2. First rotating core, 3. Second rotating core, 4. Center line of outer shell, 5. Center line of first rotating core, 6. Center of second rotating core Line, 7, compression cavity, 8, expansion cavity, 9, shell outer surface, 10, shell inner surface, 11, first rotating core outer surface, 12, first rotating core inner surface, 13, The outer surface of the second rotating core, 14, the first working fluid, and 15, the second working fluid.

detailed description

In order to clearly illustrate the technical characteristics of the conical compressor-expander proposed by the present invention, the working process of the present invention will be described in detail below with regard to specific implementation methods.

The working process of compression is: the second rotating core 3 rotates to a certain angle, the area of the cross-section between two adjacent tangent points, the inner surface of the housing 10 and the outer surface 11 of the first rotating core at the same axial position is zero, when the second rotating core 3 rotates to a certain angle, the area of the cross-section between two adjacent tangent points, the inner contour surface 10 of the housing and the outer contour surface 11 of the first rotating core at the same position in the axial direction Increase to the maximum; when the second rotating core 3 continues to rotate to a certain angle, between two adjacent tangent points, the cross section of the inner surface of the housing 10 and the outer surface 11 of the first rotating core at the same position in the axial direction The area of the first rotating core 2 is then reduced to 0, so that the first rotating core 2 can complete the suction and sealing of the first working medium 14 by changing the rotation angle within a certain range; then, as the first rotating core 2 revolves and rotates At the same time, the first working medium 14 enclosed in the compression chamber 7 moves along the direction of the axial cone angle, and the volume continues to decrease. When the first rotating core 2 rotates to a certain angle, the first working medium in the compression chamber 7 14 is discharged from the outlet of the compressed gas on the outer casing 1, thereby realizing the intermittent compression of the first working medium 14.

The working process of expansion is: while the second rotating core 3 is revolving and rotating, the second working medium 15 enters the expansion chamber 8 from the inlet of the second working medium 15, and then rotates to a certain angle with the second rotating core 3 Afterwards, the second working medium 15 is sealed in the expansion chamber 8; then, as the second rotating core 3 continues to rotate, the expansion chamber 8 moves along the direction opposite to the axial cone angle, and the volume continues to increase. After the core 3 rotates to a certain angle, the second working medium 15 in the expansion chamber 8 is discharged from the outlet of the second working medium, thereby realizing the intermittent expansion of the second working medium 15 .

The inside of the device may only include one compression process or one compression process, or may include two compression processes or two expansion processes, and may also perform compression and expansion simultaneously. For the working process that realizes the compression function and the expansion function at the same time, because the above structure recovers part of the expansion work in the process of realizing the gas compression, it has certain energy saving properties. In addition, because the compression process and the expansion process are integrated in a unified device, it has The advantage of compact structure.

Claims (4)

1. a kind of conical compression expands all-in-one, it is characterised in that：

Including shell body（1）, first rotate fuse（2）Fuse is rotated with second（3）, first rotates fuse（2）Positioned at shell body （1）Inside, second rotates fuse（3）Fuse is rotated positioned at first（2）It is internal；

Profile surface wherein in shell body（10）, first rotate fuse external profile surface（11）, first rotate fuse in profile surface（12）, second turn Dynamic fuse external profile surface（13）It is spiral shape cone structure, and cone angle is identical, is c1, less than 90^o；

First rotates fuse（2）Around shell body center line（4）Revolve round the sun and around the first rotating core subcenter line（5）Rotation, first turn Dynamic fuse center line（5）With shell body center line（4）In a1 angles；Second rotates fuse（3）Around the first rotating core subcenter line （5）Revolve round the sun and around the second rotating core subcenter line（6）During rotation；Second rotating core subcenter line（6）Rotated with first in fuse Heart line（5）In a2 angles；Shell body center line（4）, the first rotating core subcenter line（5）With the second rotating core subcenter line（6） Pass through shell body（1）The summit of cone angle；Above-mentioned a1 angles are more than a2 angles；Above-mentioned all revolution, rotation are all positive hour hands or are all inverse Clockwise；

Profile surface in shell body（10）The cross section of any axial location is the N sides shape that chamfering is R1, and first rotates fuse external profile surface （11）The cross section of any axial location is the N-1 sides shape that chamfering is R1；First rotates fuse external profile surface（11）In shell body Profile surface（10）Contact site be N bar helixes；Profile surface in shell body（10）Axial pitch with first rotate fuse external profile surface （11）The ratio of axial pitch be N:N-1, N are the natural number more than 3；

First rotates profile surface in fuse（12）The cross section of any axial location is the M sides shape that chamfering is R2, and second rotates fuse External profile surface（13）The cross section of any axial location is the M-1 sides shape that chamfering is R2；Second rotates fuse external profile surface（13）With One rotates profile surface in fuse（12）Contact site be M bar helixes；First rotates profile surface in fuse（12）Axial pitch with Second rotates fuse external profile surface（13）The ratio of axial pitch be：M:M-1, M are the natural number more than 3；

First rotates fuse（2）Around shell body center line（4）Revolve round the sun and around the first rotating core subcenter line（5）Rotation, angle of revolving round the sun The relation of speed and spin velocity is N-1：N；

Second rotates fuse（3）Around the first rotating core subcenter line（5）Revolve round the sun and around the second rotating core subcenter line（6）Rotation, The relation of revolution angular speed and spin velocity is M-1：M.

2. the method for work of conical compression expansion all-in-one according to claim 1, it is characterised in that：

Compression work process：

First rotates fuse（2）Around shell body center line（4）Revolve round the sun and around the first rotating core subcenter line（5）Rotation so that the One rotates fuse external profile surface（11）The profile surface in shell body（10）Interior rotation；

Due to the first rotation fuse external profile surface（12）The chamfering of the N-1 sides shape of cross section is profile surface in R1, with shell body（10）It is horizontal The chamfering of the N sides shape in section is identical；

First rotates fuse external profile surface（11）With profile surface in shell body（10）Contact site be N bar helixes；And per adjacent Two helix has some intersection points；

Per two adjacent helixes and its adjacent two intersection points and first rotate fuse external profile surface（11）And in shell body Profile surface（10）Between form a helix closed chamber；

In the first rotating core subcenter line（5）Around shell body center line（4）While revolution and rotation, above-mentioned helix closed chamber edge And axially moved to cone angle direction, volume constantly reduces, when helix closed intracavitary is filled with the first working medium（14）, then the working medium is quilt Compression, the helix closed chamber form a compression chamber（7）, so as to the first working medium（14）Compression；

Expand the course of work：

Second rotates fuse（3）Around the first rotating core subcenter line（5）Revolve round the sun and around the second rotating core subcenter line（6）Rotation When so that second rotates fuse external profile surface（13）Profile surface in fuse is rotated first（12）Interior rotation；

Due to the second rotation fuse external profile surface（13）The chamfering of M-1 sides shape of cross section be R2, rotated with first wide in fuse Face（12）The chamfering of the M sides shape of cross section is identical；

Second rotates fuse external profile surface（13）Profile surface in fuse is rotated with first（12）Contact site be M bar helixes;It is and every Two adjacent helixes have some intersection points；

Per two adjacent helixes and its adjacent two intersection points and second rotate fuse external profile surface（13）, the first rotating core Profile surface in son（12）Form a helix closed chamber；

In the second rotating core subcenter line（6）Around the first rotating core subcenter line（5）When revolution and rotation, above-mentioned helix closed chamber Axially moved to cone angle opposite direction, volume is continuously increased, when helix closed intracavitary is filled with the second working medium（15）, then the working medium Expansion, the helix closed chamber form an expansion chamber（8）, so as to the second working medium（15）Realize expansion；

3. the method for work of conical compression expansion all-in-one according to claim 1, it is characterised in that：Above-mentioned first working medium （14）For dry air, humid air, vapor and other have the gas of certain humidity；

4. the method for work of conical compression expansion all-in-one according to claim 1, it is characterised in that：Above-mentioned second working medium （15）For dry air, humid air, vapor and other have the gas of certain humidity.