阅读说明：本技术 一种双级蒸汽压缩机装置 (Two-stage steam compressor device ) 是由 刘君昊 李伟华 王文斌 刘超 刘丹 李少明 乔金薪 于 2020-05-26 设计创作，主要内容包括：本发明涉及一种双级蒸汽压缩机装置,包括底座以及安装于底座的电机和一级压缩机机头,一级压缩机机头设置有一级扩压流道和位于流道内的一级叶轮,一级扩压流道设置有一级进口和一级出口,还包括底座的二级压缩机机头和连接通道,二级压缩机机头设置有二级扩压流道和位于流道内的二级叶轮,二级扩压流道设置有二级进口和二级出口,电机设置有驱动一级叶轮旋转的第一输出端和驱动二级叶轮旋转的第二输出端。本发明通过机械结构,解决了能耗和维护成本过高的问题,达到了有效降低能耗及维护成本的根本目的。(The invention relates to a two-stage steam compressor device, which comprises a base, a motor and a first-stage compressor head, wherein the motor and the first-stage compressor head are arranged on the base, the first-stage compressor head is provided with a first-stage diffusion flow channel and a first-stage impeller positioned in the flow channel, the first-stage diffusion flow channel is provided with a first-stage inlet and a first-stage outlet, the two-stage compressor head of the base and a connecting channel are further included, the second-stage compressor head is provided with a second-stage diffusion flow channel and a second-stage impeller positioned in the flow channel, the second-stage diffusion flow channel is provided with a second-stage inlet and a second-stage. The invention solves the problem of overhigh energy consumption and maintenance cost through a mechanical structure and achieves the fundamental purpose of effectively reducing the energy consumption and the maintenance cost.)

1. The utility model provides a doublestage vapor compressor device, includes the base and installs in the motor and the one-level compressor aircraft nose of base, the one-level compressor aircraft nose be provided with one-level diffusion runner and be located the one-level impeller of runner, the one-level impeller rotatory by motor drive, the one-level diffusion runner be provided with one-level import and one-level export, the one-level import link to each other its characterized in that with the steam source: still including setting up in the second grade compressor aircraft nose and the interface channel of base, the second grade compressor aircraft nose be provided with the second grade diffusion runner and be located the second grade impeller of runner, the second grade impeller rotatory by motor drive, the second grade diffusion runner be provided with second grade import and second grade export, first grade export and second grade import link to each other through interface channel, the second grade export link to each other with high-pressure steam recovery source, the motor be provided with the rotatory first output of drive one-level impeller and the rotatory second output of drive second grade impeller.

2. The dual stage vapor compressor assembly of claim 1, wherein: the first-stage compressor machine head and the second-stage compressor machine head are arranged on two sides of the motor and are symmetrically arranged, and the first output end and the second output end are connected to the same motor output shaft.

3. The dual stage vapor compressor assembly of claim 1, wherein: the connecting channel comprises a right-angle channel and a horizontal channel, the horizontal channel is located inside the base and communicated with the primary outlet, and the right-angle channel is arranged on the outer side of the base and communicated with the secondary outlet.

4. The dual stage vapor compressor assembly of claim 1, wherein: the motor adopts a high-speed direct-drive synchronous rolling bearing motor.

5. The dual stage vapor compressor assembly of claim 1, wherein: the base be provided with the motor inside thin oil station of lubricating.

Technical Field

The invention relates to the technical field of air compressors, in particular to a two-stage vapor compressor device.

Background

In recent years, as the demand for energy has been increasing, the supply of energy has become a bottleneck problem. In the face of such a situation, energy saving is one of the effective ways to get rid of the energy shortage at present. Among them, the vapor compression technology is an efficient and environment-friendly energy-saving technology, and is currently widely applied to the traditional Chinese medicine concentration MVR process.

At present, the steam compression technology applied to the traditional Chinese medicine concentration MVR process is generally that a conventional motor is matched with a speed-up gear box to drive a single impeller shaft, so that an impeller passing through a volute diffuser rotates in a compressor head, meanwhile, lubricating oil in a thin oil station is also subjected to circulating lubrication in each transmission part, the impeller is matched with the volute diffuser to heat and pressurize gas which enters a diffusion flow channel after being introduced into the compressor, and the gas flows out of the compressor through an outlet.

The whole pressurizing process is completed by driving a single impeller in one compressor head, so that the impeller needs a motor to output larger power and needs a large amount of energy consumption in order to ensure the pressurizing effect. And because the output shaft of the motor and the impeller shaft are accelerated through the speed-increasing gear box, energy waste exists in the transmission process, more parts in the gear box inevitably cause faults, the fault rate of the compressor is high, and in addition, all parts in the pressurizing process are abraded, so that the maintenance cost is high, and the economic benefit is hindered.

Disclosure of Invention

In view of the shortcomings of the prior art, the present invention provides a two-stage vapor compressor device capable of effectively reducing energy consumption and maintenance cost.

In order to achieve the purpose, the invention provides the following technical scheme: a two-stage vapor compressor device comprises a base, a motor and a one-stage compressor head which are arranged on the base, the first-stage compressor head is provided with a first-stage diffusion flow channel and a first-stage impeller positioned in the flow channel, the first-stage impeller is driven by a motor to rotate, the first-stage diffusion flow channel is provided with a first-stage inlet and a first-stage outlet, the first-stage inlet is connected with a steam source, and the steam-driven steam generator also comprises a second-stage compressor head and a connecting channel which are arranged on the base, the head of the secondary compressor is provided with a secondary diffusion flow passage and a secondary impeller positioned in the flow passage, the second-stage impeller is driven by a motor to rotate, the second-stage diffusion flow passage is provided with a second-stage inlet and a second-stage outlet, the primary outlet is connected with the secondary inlet through a connecting channel, the secondary outlet is connected with a high-pressure steam recovery source, the motor is provided with a first output end for driving the first-stage impeller to rotate and a second output end for driving the second-stage impeller to rotate.

By adopting the technical scheme, the primary impeller and the secondary impeller are adopted to carry out two-stage pressurization, and the pressurization task in the original single impeller is completed together, so that the sizes of the primary impeller and the secondary impeller and the sizes of related parts can be adjusted, the temperature rise of each stage of impeller is reduced, the diameter of the impeller is reduced, a diffusion flow channel is shortened, the integral machine head of the compressor is reduced, the space resources are effectively saved, and meanwhile, as the diameter of the impeller is reduced, the Mach number of the outlet of the impeller is reduced, the disturbance of air flow is reduced, and the noise is reduced; the efficiency of the impeller is increased by about 2% to 3%, the manufacturing cost of the whole machine is greatly reduced, and because the energy consumption of the compressor is reduced, the power of the motor of the compressor with the same evaporation capacity is greatly reduced, the power of the frequency converter matched with the motor is also reduced, the size of the impeller is reduced, and the matched volute diffuser and other parts are also reduced, the manufacturing cost of the whole machine is also greatly reduced as a whole.

The invention is further configured to: the first-stage compressor machine head and the second-stage compressor machine head are arranged on two sides of the motor and are symmetrically arranged, and the first output end and the second output end are connected to the same motor output shaft.

Through adopting above-mentioned technical scheme, realize that the axial force that main motor both sides bore is big or small equal, the opposite direction offsets each other, does not need extra axial force to come the equilibrium, is favorable to the steady operation of equipment, has increased the life of motor.

The invention is further configured to: the connecting channel comprises a right-angle channel and a horizontal channel, the horizontal channel is located inside the base and communicated with the primary outlet, and the right-angle channel is arranged on the outer side of the base and communicated with the secondary outlet.

Through adopting above-mentioned technical scheme, through being provided with horizontal passageway in bottom inside, utilize the inside space of base to make the structure compacter, because the right angle passageway sets up in the outside of base, can dismantle, be convenient for maintain.

The invention is further configured to: the motor adopts a high-speed direct-drive synchronous rolling bearing motor.

By adopting the technical scheme, the motor adopts a high-speed direct-drive synchronous rolling bearing motor, and a transmission structure, a speed-up gear box and other related auxiliary components of a conventional motor are directly omitted. Considering from the compact structure of the whole equipment, the occupied space is greatly reduced, and the space resource is effectively saved, thereby being more beneficial to the implementation and operation of the traditional Chinese medicine concentration skid-mounted modularization. From the stability of the compressor, the failure rate, the noise and the maintenance cost of the compressor are greatly reduced. In the aspect of energy consumption, the gear transmission loss and the mechanical friction loss are greatly reduced;

the invention is further configured to: the base be provided with the motor inside thin oil station of lubricating.

By adopting the technical scheme, the lubricating station is arranged to provide a small amount of lubricating oil for the high-speed direct-drive synchronous rolling bearing motor to lubricate and cool, and the service life of the motor is prolonged.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

fig. 2 is a cross-sectional view of a motor, a primary compressor head, and a secondary compressor head in an embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 2, the present invention discloses a two-stage vapor compressor device, which comprises a base 1, a motor 2 and a one-stage compressor head 3, wherein the motor 2 and the one-stage compressor head 3 are arranged on the base 1, the one-stage compressor head 3 is provided with a one-stage diffusion flow passage 31 and a one-stage impeller 34 positioned in the flow passage, the one-stage impeller 34 is driven by the motor 2 to rotate, the one-stage diffusion flow passage 31 is provided with a one-stage inlet 32 and a one-stage outlet 33, the one-stage inlet 32 is connected with a vapor source, the two-stage compressor head 4 and a connecting passage 5 are arranged on the base 1, the two-stage compressor head 4 is provided with a two-stage diffusion flow passage 41 and a two-stage impeller 44 positioned in the flow passage, the two-stage impeller 44 is driven by the motor 2 to rotate, the two-stage diffusion flow passage 41 is, the motor 2 is provided with a first output 21 for driving the rotation of the primary impeller 34 and a second output 22 for driving the rotation of the secondary impeller 44. First-level compressor aircraft nose 3 and second compressor aircraft nose 4 all arrange in motor 2 both sides and symmetry setting, and first output 21 and second output 22 all are connected to same root motor output shaft 23, realize that the axial force size that main motor 2 both sides bore equals, and opposite direction offsets each other, do not need extra axial force to balance, are favorable to the steady operation of equipment, have increased motor 2's life. The connecting passage 5 includes a right-angle passage 52 and a horizontal passage 51, the horizontal passage 51 is located inside the base 1 and is communicated with the primary outlet 33, the right-angle passage 52 is disposed outside the base 1 and is communicated with the secondary inlet 42, the space inside the base 1 is utilized, and the structure is more compact, and since the right-angle passage 52 is disposed outside the base 1, the disassembly is possible, and the maintenance is facilitated. The motor 2 adopts a high-speed direct-drive synchronous rolling bearing motor, so that the occupied space is greatly reduced, the space resource is effectively saved, and the fault rate, the noise and the maintenance cost of the compressor are greatly reduced. And in the aspect of energy consumption, the gear transmission loss and the mechanical friction loss are greatly reduced. Base 1 is provided with and carries out lubricated thin oil station 6 with motor 2 inside, provides a small amount of lubricating oil and lubricates the cooling, promotes motor 2 life-span.

When the two-stage steam compressor device is started, gas enters the first-stage diffusion flow channel 31 from the steam source through the first-stage inlet 32, meanwhile, the electrode output shaft 23 in the high-speed direct-drive synchronous rolling bearing motor rotates, the first-stage impeller 34 and the second-stage impeller 44 are driven to rotate through the first output end 21 and the second output end 22, and the gas is pressurized and heated under the rotation of the first-stage impeller 34 and the effect of the volute diffuser. The pressurized gas flows from the primary outlet 33 into the horizontal channel 51 inside the base 1 under the action of pressure, then flows through the horizontal channel 51 into the right-angle channel 52 outside the base 1, and flows into the secondary diffuser flow channel 41 through the secondary outlet 43 under the guidance of the right-angle channel 52. The gas is pressurized for the second time by the rotation of the secondary impeller 44 and the action of the volute diffuser, and finally flows out of the device through the secondary outlet 43 and is led to the high-pressure steam recovery source.