Efficient compressor device capable of effectively improving steam grade

Abstract

The invention relates to the technical field of compressors, in particular to an efficient compressor device capable of effectively improving steam grade, which comprises a base and a control device, a driving motor is fixedly mounted on one side of the upper end of the base, a steam trap is fixedly mounted on the other side of the upper end of the base, and a heating frame is fixedly mounted in the middle of the base; a heating and pressurizing cavity is formed in the heating frame, the output end of the driving motor is in key connection with a rotating shaft, the rotating shaft rotationally penetrates through the heating and pressurizing cavity from left to right, and the two ends, located in the heating and pressurizing cavity, of the rotating shaft are fixedly sleeved with large-diameter impellers correspondingly; a medium-diameter impeller and a small-diameter impeller are sequentially arranged on the sides, close to each other, of the two large-diameter impellers. According to the steam compressor, on one hand, the kinetic energy of the steam can be rapidly increased, so that the pressure grade of the steam is improved, the overall quality of the steam is improved, on the other hand, the energy loss can be greatly reduced through the friction-free operation mode, the steam can be compressed more efficiently through the compressor, and therefore the steam grade is improved more effectively.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, and in particular to a high-efficiency compressor device for effectively improving steam quality. Background Art

[0002] In industrial production, various kilns are used and a lot of waste heat is generated. Utilizing this waste heat can save a lot of energy, but some of the waste heat has not been fully utilized, and some of the waste heat still has many problems in utilization. At present, the best way to utilize waste heat is to produce waste heat steam, which can be used for heating, vacuum smelting, power generation, etc.

[0003] However, the temperature and pressure of waste heat steam are relatively low, and its effect is unstable and inefficient when used in vacuum smelting, power generation and other occasions. Therefore, it is mostly used for a small amount of heating, which makes the application occasions of low-temperature and low-pressure waste heat steam very limited. Therefore, low-temperature and low-pressure waste heat steam cannot be widely used, and a large amount of waste heat cannot be used and is wasted. In order to solve the problem of limited application occasions of low-temperature and low-pressure waste heat steam, the quality of steam is usually improved by burning and compressing electricity or fuel to expand the scope of application. However, the fuel consumption and electricity consumption in the improvement process are large, and the cost is relatively high. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned shortcomings existing in the prior art and to propose a high-efficiency compressor device which can effectively improve the steam quality.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A high-efficiency compressor device for effectively improving steam quality comprises a base and a control device, wherein the control device is fixedly mounted on the base, a driving motor is fixedly mounted on one side of the upper end of the base, a steam trap is fixedly mounted on the other side, a heating frame is fixedly mounted at the middle position, a heating and pressurizing chamber is provided inside the heating frame, an air outlet end of the steam trap is connected to the heating and pressurizing chamber, an air outlet pipe is connected to one end of the heating and pressurizing chamber close to the driving motor, a rotating shaft is keyed to the output end of the driving motor, the rotating shaft rotates from left to right and penetrates the heating and pressurizing chamber, large-diameter impellers are fixedly sleeved on both ends of the rotating shaft located inside the heating and pressurizing chamber, a medium-diameter impeller and a small-diameter impeller are sequentially arranged on the side where the two large-diameter impellers are close to each other, and the medium-diameter impeller and the small-diameter impeller are fixedly sleeved on the outer side of the rotating shaft;

[0007] A sealed bearing is fixedly installed in a side wall of the heating frame at one end away from the driving motor, and the end of the rotating shaft away from the driving motor is rotatably connected to the sealed bearing.

[0008] Preferably, the heating frame is narrow in the middle and wide at both ends.

[0009] Preferably, a vacuum cavity is provided in the side wall of the heating frame.

[0010] Preferably, the small-diameter impellers are provided in multiple groups at both ends of the rotating shaft.

[0011] Preferably, a frictionless mechanism is provided at the middle position of the rotating shaft and at the connection between the rotating shaft and the driving motor. The frictionless mechanism is fixedly mounted on the inner wall of the heating and pressurizing chamber. The frictionless mechanism includes a fixed bearing. A plurality of metal blocks are fixedly mounted at equal angles on the inner wall of the fixed bearing. Graphite wires are wound around the metal blocks.

[0012] Preferably, a water seal groove is provided inside the sealing bearing, and the rotating shaft is inserted into the water seal groove to be rotatably connected with the sealing bearing.

[0013] Preferably, an exhaust pipe is connected to the air outlet end of the steam trap, and one end of the exhaust pipe away from the steam trap is in communication with the interior of the heating and pressurizing chamber.

[0014] Preferably, a water outlet end of the steam trap is connected to a water pipe, and one end of the water pipe away from the steam trap is in communication with the interior of the water seal tank.

[0015] Preferably, a water return pipe communicating with an internal water seal groove of the sealing bearing is fixedly mounted on one side of the sealing bearing, and one end of the water return pipe away from the sealing bearing is connected to a steam generator fixedly mounted on the base.

[0016] Preferably, a fixing seat fixedly mounted on the upper end of the base is provided between the driving motor and the steam trap, and the heating frame is fixedly mounted on the upper end of the fixing seat.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. In the present application, when the steam just enters, the large-diameter impeller can make the steam obtain a greater centrifugal force at a lower rotation speed, and the larger radius can generate a greater centrifugal force at the same angular velocity, which is conducive to the rapid acceleration of the steam at the initial stage of entering the heating and pressurizing chamber, and the rotational mechanical energy of the drive motor is more effectively transmitted to the steam, so that the kinetic energy of the steam is rapidly increased, laying the foundation for the subsequent pressure increase.

[0019] 2. In this application, when the steam enters the medium-diameter impeller, the flow space of the steam decreases. According to the continuity equation, the flow rate of the steam will gradually increase. At the same time, in this process, the kinetic energy of the steam will be further converted into pressure energy. This diameter gradient design enables the steam to gradually and steadily increase the pressure in the first-level heating and pressurizing chamber, avoiding energy loss and unstable steam state caused by rapid pressure changes, which is conducive to improving the pressure grade of the steam.

[0020] 3. In this application, when the steam enters the small-diameter impeller, the flow state of the steam can be further stabilized. At this time, after the steam is accelerated and the pressure is increased in the previous diameter change area, the energy can be better evenly distributed and the internal energy can be adjusted in this stable area, making the temperature and pressure distribution of the steam more uniform, which helps to improve the overall quality of the steam.

[0021] 4. In this application, a liquid seal effect is formed by setting a water seal groove. When the steam inside the device tries to leak, it needs to overcome the liquid column pressure of the condensed water, thereby improving the sealing effect. At the same time, the condensed water can also play a lubricating role. It can reduce the friction between components, reduce wear, and extend the service life of the sealed bearing.

[0022] 5. In this application, through the design of frictionless mechanism, the resistance of graphite wire decreases at high temperature, thereby improving its own electromagnetic efficiency, and allowing the rotating shaft to be suspended in the fixed bearing to achieve contactless support. For steam compressors, this frictionless operation mode can greatly reduce energy loss, allowing the compressor to compress steam more efficiently, thereby more effectively improving the quality of steam.

[0023] To sum up, through the design of the above-mentioned structure in the present application, on the one hand, the kinetic energy of the steam can be rapidly increased to improve the pressure grade of the steam, which is helpful to improve the overall quality of the steam. On the other hand, the frictionless operation mode can greatly reduce energy loss, so that the compressor can compress the steam more efficiently, thereby more effectively improving the steam quality, while reducing energy consumption as much as possible, which is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall axonometric structure of a high-efficiency compressor device for effectively improving steam quality proposed by the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of a base and a control device of a high-efficiency compressor device for effectively improving steam quality proposed by the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of a steam generator and a steam trap of a high-efficiency compressor device for effectively improving steam quality proposed by the present invention.

[0027] Figure 4 This is a schematic diagram of the fixed bearing and metal block structure of a high-efficiency compressor device for effectively improving steam quality proposed by the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of a large-diameter impeller and a medium-diameter impeller of a high-efficiency compressor device for effectively improving steam quality proposed by the present invention.

[0029] Figure 6 This is a schematic diagram of the half-section structure of a heating frame and a sealed bearing of a high-efficiency compressor device for effectively improving steam quality proposed by the present invention.

[0030] In the figure: 1 base, 2 control device, 3 drive motor, 4 air inlet pipe, 5 air outlet pipe, 6 heating frame, 7 steam generator, 8 steam trap, 9 water pipe, 10 sealing bearing, 11 water seal groove, 12 return pipe, 13 return pipe, 14 vacuum chamber, 15 fixed seat, 16 heating and pressurizing chamber, 17 fixed bearing, 18 metal block, 19 graphite wire, 20 large diameter impeller, 21 medium diameter impeller, 22 small diameter impeller, 23 rotating shaft. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figures 1 to 6 A high-efficiency compressor device for effectively improving the quality of steam comprises a base 1, a driving motor 3 is fixedly mounted on one side of the upper end of the base 1, a steam trap 8 is fixedly mounted on the other side of the upper end, a fixing seat 15 fixedly mounted on the upper end of the base 1 is arranged between the driving motor 3 and the steam trap 8, a heating frame 6 is fixedly mounted on the upper end of the fixing seat 15, the heating frame 6 is narrow in the middle and wide at both ends (such a design utilizes the Venturi effect, which can pressurize the steam, thereby improving the quality of the steam), and a heating and pressurizing chamber 16 is opened inside the heating frame 6, a vacuum chamber 14 is opened in the side wall of the heating frame 6, the vacuum chamber 14 has good heat insulation performance, so that it can play a role in heat preservation of the heating and pressurizing chamber 16, and an exhaust pipe 5 is connected to the end of the heating and pressurizing chamber 16 close to the driving motor 3.

[0033] The output end of the driving motor 3 is keyed to a rotating shaft 23, which rotates from left to right and penetrates the heating and pressurizing chamber 16. Both ends of the rotating shaft 23 located inside the heating and pressurizing chamber 16 are fixedly sleeved with large-diameter impellers 20, and a medium-diameter impeller 21 and a small-diameter impeller 22 are sequentially arranged on the side where the two large-diameter impellers 20 are close to each other, and the medium-diameter impeller 21 and the small-diameter impeller 22 are fixedly sleeved on the outside of the rotating shaft 23, so that when the driving motor 3 is running, the two large-diameter impellers 20, the two medium-diameter impellers 21 and the two small-diameter impellers 22 can be synchronously driven to rotate, thereby effectively increasing the kinetic energy and pressure of the steam.

[0034] In order to reduce the friction of the rotating shaft 23 during the rotation process, a frictionless mechanism fixedly installed on the inner wall of the heating and pressurizing chamber 16 is provided at the middle position of the rotating shaft 23 (i.e., the middle section of the heating and pressurizing chamber 16) and at the connection between the rotating shaft 23 and the driving motor 3. The frictionless mechanism includes a fixed bearing 17. A plurality of metal blocks 18 are fixedly installed at equal angles on the inner wall of the fixed bearing 17. A graphite wire 19 is wound around the metal block 18. The rotating shaft 23 passes through the inside of the fixed bearing 17. Since the resistance of the graphite wire 19 decreases at high temperature, its own electromagnetic efficiency is improved, so that the rotating shaft 23 can be suspended in the fixed bearing 17 to achieve contactless support.

[0035] A sealing bearing 10 is fixedly installed in the side wall of the heating frame 6 away from the driving motor 3. A water seal groove 11 is arranged inside the sealing bearing 10. The end of the rotating shaft 23 away from the driving motor 3 is inserted into the water seal groove 11 and is rotatably connected to the sealing bearing 10.

[0036] The input end of the steam trap 8 is connected to the air inlet pipe 4. The steam trap 8 is provided with an air outlet end and a water outlet end. The air outlet end is connected to an exhaust pipe. The end of the exhaust pipe away from the steam trap 8 is connected to the interior of the heating and pressurizing chamber 16. The water outlet end is connected to a water pipe 9. The end of the water pipe 9 away from the steam trap 8 is connected to the interior of the water seal groove 11, so that the condensed water with latent heat separated by the steam trap 8 is introduced into the water seal groove 11 through the water pipe 9 to form a liquid seal effect, which can improve the sealing effect of the sealing bearing 10 and reduce the friction between it and the rotating shaft 23.

[0037] A return pipe 12 connected to the water seal groove 11 inside the sealed bearing 10 is fixedly installed on one side of the sealed bearing 10. The end of the return pipe 12 away from the sealed bearing 10 is connected to the steam generator 7 fixedly installed on the base 1. The connection of the steam generator 7 is a prior art, and its specific structural design is not repeated here. It is used to regenerate a large amount of steam from the condensed water entering the interior, and then replenish the generated steam into the intake pipe 4 through the return pipe 13 connected to the output end thereof, thereby realizing circulation.

[0038] A control device 2 is installed on the upper end of the base 1. The control device 2 is a prior art device used to control the overall operation of the device.

[0039] The specific working principle of the present invention is as follows: steam is introduced into the steam trap 8 through the air inlet pipe 4, so that condensed water and impurities in the steam can be separated. The separated condensed water has a large amount of latent heat, which needs to be utilized. The separated condensed water is introduced into the water seal groove 11 in the middle of the sealing bearing 10 through the water pipe 9. The sealing ability of the entire device is very important.

[0040] After the high-temperature condensed water enters the water seal groove 11, a liquid seal effect is formed. When the steam inside the device tries to leak, it needs to overcome the liquid column pressure of the condensed water, thereby improving the sealing effect. At the same time, the condensed water can also play a lubricating role. It can reduce the friction between components, reduce wear, and extend the service life of the sealed bearing 10. Subsequently, the condensed water enters the steam generator 7 from the water seal groove 11 through the return pipe 12 to regenerate a large amount of steam, and then the generated steam is supplemented to the intake pipe 4 from the return pipe 13 to improve the utilization rate of resources.

[0041] A vacuum chamber 14 is provided between the heating and pressurizing chamber 16 and the heating frame 6. The vacuum chamber 14 has good heat insulation performance. This is based on the lack of heat transfer medium in a vacuum environment, and heat conduction and convection are almost impossible. During the operation of the compressor, the steam temperature in the heating and pressurizing chamber 16 is high, and the heat will be lost to the surrounding environment. The provision of an outer vacuum chamber 14 can effectively reduce this heat transfer, so that the steam can better maintain the temperature in the heating and pressurizing chamber 16, which is conducive to improving the quality of the steam in the subsequent compression process.

[0042] After the steam enters the heating and pressurizing chamber 16, it first passes through the large-diameter impeller 20, then the medium-diameter impeller 21, and then enters the small-diameter impeller 22. After exiting the small-diameter impeller 22, it passes through the fixed bearing 17, then enters the second group of small-diameter impellers 22, enters the medium-diameter impeller 21, and finally passes through the large-diameter impeller 20 and is discharged from the outlet pipe 5. This design has the following advantages:

[0043] First, when the steam just enters, the large-diameter impeller 20 can make the steam obtain a larger centrifugal force at a lower rotation speed. The larger radius can generate a larger centrifugal force at the same angular velocity, which is conducive to the rapid acceleration of the steam at the initial stage of entering the heating and pressurizing chamber 16, and the rotational mechanical energy of the drive motor 3 is more effectively transmitted to the steam, so that the kinetic energy of the steam is rapidly increased, laying a foundation for the subsequent pressure increase;

[0044] Second, when entering the medium-diameter impeller 21, the diameter becomes smaller, and the flow space of the steam decreases. According to the continuity equation, the flow rate of the steam will gradually increase. At the same time, in this process, the kinetic energy of the steam will be further converted into pressure energy. This gradual diameter design allows the steam to gradually and steadily increase the pressure in the first-level heating and pressurizing chamber 16, avoiding energy loss and unstable steam state caused by rapid pressure changes, which is conducive to improving the pressure grade of the steam;

[0045] Third, the flow state of steam can be further stabilized in the part with the same diameter of the small-diameter impeller 22. At this time, after the steam is accelerated and the pressure is increased in the previous diameter change area, the energy can be better evenly distributed and the internal energy can be adjusted in this stable area, making the temperature and pressure distribution of the steam more uniform, which helps to improve the overall quality of the steam.

[0046] The design of the heating frame 6 from wide to narrow and then to wide can utilize the Venturi effect to further pressurize the steam and improve the quality of the steam.

[0047] The middle part of the rotating shaft 23 and the connection between the rotating shaft 23 and the driving motor 3 are both provided with frictionless mechanisms. The rotating shaft 23 passes through the fixed bearing 17. The inner ring of the fixed bearing 17 is provided with a metal block 18. The metal block 18 is wound with a graphite wire 19. The resistance of the graphite wire 19 decreases at high temperatures, thereby improving its own electromagnetic efficiency, allowing the rotating shaft 23 to be suspended in the fixed bearing 17 to achieve contactless support. For steam compressors, this frictionless operation mode can greatly reduce energy loss, allowing the compressor to compress steam more efficiently, thereby more effectively improving the quality of steam.

[0048] In the fast discharge area, the steam passes through the small-diameter impeller 22, the medium-diameter impeller 21 and the large-diameter impeller 20, and the diameter gradually increases. According to the centrifugal force formula, this will cause the steam to be subjected to the gradually increasing centrifugal force again. At this time, on the basis of the steam already having a certain pressure and temperature, the kinetic energy of the steam can be further increased through the enhancement of this centrifugal force, and in the subsequent flow process, this part of the increased kinetic energy will be efficiently converted into pressure energy and internal energy. In particular, it has a significant effect on increasing the pressure and temperature of the steam, and can effectively improve the quality of the steam. Finally, it is discharged from the outlet pipe 5.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency compressor device for effectively improving steam quality, comprising a base (1) and a control device (2), wherein the control device (2) is fixedly mounted on the base (1), a driving motor (3) is fixedly mounted on one side of the upper end of the base (1), a steam trap (8) is fixedly mounted on the other side, and a heating frame (6) is fixedly mounted in the middle, characterized in that: A heating and pressurizing chamber (16) is provided inside the heating frame (6); an air outlet end of the steam trap (8) is connected to the heating and pressurizing chamber (16); an end of the heating and pressurizing chamber (16) close to the driving motor (3) is connected to an air outlet pipe (5); an output end of the driving motor (3) is keyed to a rotating shaft (23); the rotating shaft (23) rotates from left to right and penetrates the heating and pressurizing chamber (16); large-diameter impellers (20) are fixedly sleeved at both ends of the rotating shaft (23) located inside the heating and pressurizing chamber (16); a medium-diameter impeller (21) and a small-diameter impeller (22) are sequentially provided on the side where the two large-diameter impellers (20) are close to each other; and the medium-diameter impeller (21) and the small-diameter impeller (22) are fixedly sleeved on the outside of the rotating shaft (23); A sealing bearing (10) is fixedly installed in the side wall of the heating frame (6) at one end away from the driving motor (3), and the end of the rotating shaft (23) away from the driving motor (3) is rotatably connected to the sealing bearing (10).

2. The high-efficiency compressor device for effectively improving steam quality according to claim 1 is characterized in that: The heating frame (6) is narrow in the middle and wide at both ends.

3. The high-efficiency compressor device for effectively improving steam quality according to claim 1 is characterized in that: A vacuum cavity (14) is provided in the side wall of the heating frame (6).

4. The high-efficiency compressor device for effectively improving steam quality according to claim 1 is characterized in that: The small-diameter impellers (22) are provided in multiple groups at both ends of the rotating shaft (23).

5. The high-efficiency compressor device for effectively improving steam quality according to claim 1 is characterized in that: A frictionless mechanism is provided at the middle position of the rotating shaft (23) and at the connection between the rotating shaft (23) and the driving motor (3). The frictionless mechanism is fixedly mounted on the inner wall of the heating and pressurizing chamber (16). The frictionless mechanism comprises a fixed bearing (17). A plurality of metal blocks (18) are fixedly mounted at equal angles on the inner wall of the fixed bearing (17). A graphite wire (19) is wound around the metal block (18).

6. The high-efficiency compressor device for effectively improving steam quality according to claim 1, characterized in that: A water seal groove (11) is provided inside the sealing bearing (10), and the rotating shaft (23) is inserted into the water seal groove (11) and is rotatably connected to the sealing bearing (10).

7. The high-efficiency compressor device for effectively improving steam quality according to claim 1, characterized in that: The gas outlet end of the steam trap (8) is connected to an exhaust pipe, and one end of the exhaust pipe away from the steam trap (8) is communicated with the interior of the heating and pressurizing chamber (16).

8. The high-efficiency compressor device for effectively improving steam quality according to claim 1, characterized in that: The water outlet end of the steam trap (8) is connected to a water delivery pipe (9), and one end of the water delivery pipe (9) away from the steam trap (8) is in communication with the interior of the water seal groove (11).

9. The high-efficiency compressor device for effectively improving steam quality according to claim 1, characterized in that: A water return pipe (12) communicating with an internal water seal groove (11) is fixedly mounted on one side of the sealing bearing (10); an end of the water return pipe (12) away from the sealing bearing (10) is connected to a steam generator (7) fixedly mounted on the base (1).

10. The high-efficiency compressor device for effectively improving steam quality according to claim 1, characterized in that: A fixing seat (15) fixedly mounted on the upper end of the base (1) is provided between the driving motor (3) and the steam trap (8), and the heating frame (6) is fixedly mounted on the upper end of the fixing seat (15).

Images