Welded volute and multistage turbine vacuum machine

Abstract

The invention discloses a welded volute and a multistage turbine vacuum machine, and relates to the technical field of vacuum machines, the welded volute and the multistage turbine vacuum machine comprise an upper half machine shell and an air outlet, a lower half machine shell is arranged at the lower end of the upper half machine shell, a rotor set is installed between the upper half machine shell and the lower half machine shell, and a balance disc is installed at one end of the rotor set; a sealing gasket is arranged on one side of the outer portion of the balance disc, and a supporting bearing box is arranged on one side of the lower half machine shell. According to the welded volute and the multistage turbine vacuum machine, the height of the whole vacuum machine can be adjusted through the design of the air rods, the vacuum machine can be suitable for working environments with different heights, the four air rods are independently controlled, the air rods are electrically connected with the receiver, and therefore when the displacement sensor detects that displacement changes, the receiver is electrically connected with the receiver. The displacement difference can be automatically complemented through the design of the air rod, it is ensured that the vacuum machine keeps stable during long-time operation, and the device is more reliable to operate while the levelness of a vacuum unit is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum machines, in particular to a welded volute and a multi-stage turbine vacuum machine. Background Art

[0002] Mainly related to the papermaking industry. Especially related to the multi-stage turbine vacuum machine with a welded casing for the vacuum system. The vacuum system is a very important part of the paper machine. At present, the vacuum system of medium and large paper machines usually adopts a multi-stage turbine vacuum machine. The multi-stage turbine vacuum machine generates vacuum by sucking gas, and the sucked gas takes away the moisture in the pulp, thereby increasing the dryness of the paper for dehydration.

[0003] At present, after repeated use, the stability of the multi-stage turbine vacuum machine when placed is difficult to control, resulting in a slight deviation of the multi-stage turbine vacuum machine. It is difficult for users to correct it in time, so that the levelness of the entire unit is skewed, affecting the working stability of the multi-stage turbine vacuum machine.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a welded volute and multi-stage turbine vacuum machine are proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a welded volute and a multi-stage turbine vacuum machine, which solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical scheme: a welded volute and a multi-stage turbine vacuum machine, comprising an upper casing and an air outlet, a lower casing is arranged at the lower end of the upper casing, a rotor group is installed between the upper casing and the lower casing, and a balancing disk is installed at one end of the rotor group, a sealing gasket is arranged on the outer side of the balancing disk, a support bearing box is arranged on one side of the lower casing, and a thrust bearing box is installed on the outer side of the lower casing away from the support bearing box, the air outlet is arranged above the upper casing, and platform seats are arranged at the four corners of the bottom of the upper casing, a stabilizing component for maintaining the stability of the vacuum machine is installed inside the platform seat, and the stabilizing component comprises a gas rod, a mounting plate, a mounting column, a displacement sensor and a receiver, a mounting plate is installed at the output end of the gas rod, and a mounting column is arranged on the bottom side of the mounting plate, a displacement sensor is arranged at the bottom of the mounting column, and a receiver is installed on the bottom side of the gas rod.

[0007] Furthermore, the stabilizing assembly is provided with four groups, and a receiver is installed below the displacement sensor.

[0008] Furthermore, one side of the thrust bearing box and the support bearing box is provided with auxiliary components for assisting the cooling and lubrication of the rotor group, and two groups of auxiliary components are provided.

[0009] Furthermore, the auxiliary component includes an auxiliary cylinder, an oil pipe and an outer cover, and the auxiliary cylinder is arranged at both ends of the rotor group, the upper and lower sides of the auxiliary cylinder are installed with oil pipes, and the outer surface of the auxiliary cylinder is provided with an outer cover.

[0010] Furthermore, a cooling component for assisting cooling is arranged on the outside of a group of the oil pipes, and the cooling component includes an outer pipe, fins, a water pipe and an oil pump, the outer surface of the outer pipe is annularly provided with fins, and a water pipe is installed at one end of the outer pipe, one end of the water pipe is connected to a water pump, an oil pump is installed at the end of the oil pipe, a thermistor is installed on the outside of the water pipe, and a power supply group is installed at one end of the thermistor through a wire, one end of the power supply group is connected to an electromagnet through a wire, and a metal plate is arranged on one side of the electromagnet, a connecting spring is installed on the outer surface of one side of the metal plate, and a connecting top frame is arranged at the end of the connecting spring.

[0011] Furthermore, the oil pump is equipped with a transfer box via a pipeline, and the transfer box is a hollow structure.

[0012] Furthermore, a transition pipe is provided inside the transfer box, and a connecting pipe is installed at one end of the transition pipe through a pipeline.

[0013] Furthermore, one end of the connecting pipe is connected to the oil pipe on the upper side of the auxiliary cylinder, and the two groups of oil pipes are parallel to each other.

[0014] Furthermore, an extension cover is provided on the top of the air outlet, and an auxiliary component for detecting the air outlet state is installed inside the extension cover, and the auxiliary component includes an auxiliary plate and a guide shaft, and guide shafts are installed at both ends of the auxiliary plate.

[0015] Furthermore, the auxiliary component also includes a connecting disk, a connecting shaft and an extension plate, and the guide shaft is rotatably connected to the extension cover, the connecting shaft is installed at the end of the guide shaft, and a connecting disk is arranged on the outside of the connecting shaft, and an extension plate is installed on the outer surface of the connecting shaft.

[0016] The present invention provides a welded volute and a multi-stage turbine vacuum machine, which has the following beneficial effects:

[0017] 1. The welded volute and multi-stage turbine vacuum machine. The multi-stage turbine vacuum machine adopts a welded casing. The size and relative position of each stage of the air inlet can be calculated according to the gas volume to ensure that the gas flow rate is within a reasonable range. At the same time, the position of the air inlet can be appropriately adjusted to facilitate the connection with the inlet pipe.

[0018] 2. The welded volute and multi-stage turbine vacuum machine can drive the height adjustment of the entire vacuum machine through the design of the gas rod, which is conducive to the vacuum machine being suitable for working environments at different heights. The four gas rods are independently controlled and electrically connected to the receiver. Therefore, when the displacement sensor detects a change in displacement, the gas rod design can be used to automatically make up for the displacement difference, ensuring that the vacuum machine remains stable during long-term operation, ensuring the horizontality of the vacuum unit, and making the device operation more reliable.

[0019] 3. The welded volute and multi-stage turbine vacuum machine, through the design of the cooling component, the lubricating oil can be immersed in the rotor group and the bearing rotation area, and can be lubricated when the above two rotate, reducing the friction resistance caused by the rotation. In addition, the lubricating oil flowing out of the bottom of the auxiliary cylinder can be drawn into the transition pipe again through the design of the oil pump and the oil pipe. When the lubricating oil flows, the cooling water can be injected into the outer pipe by using the design of the water pipe and the water pump, which is convenient for cooling the lubricating oil after absorbing heat, and the lubricating oil can be sucked between the rotor group and the bearing by using the design of the oil pump again, which can lubricate the rotor group and the bearing, and can also cool the sealing gasket between the rotor group and the bearing to prevent the sealing gasket from being in a high temperature state for a long time;

[0020] 4. The welded volute and multi-stage turbine vacuum machine, when the oil pipe flows through the rotating area of ​​the rotor group and the bearing, will use the water pipe outside the oil pipe to absorb heat and cool down, which is beneficial to re-emulsify the lubricating oil in the oil pipe and cool down the rotor group and the bearing. At the same time, the design that the thermistor is affected by the water pipe temperature increase can be used to reduce the resistance of the thermistor, thereby increasing the current and the magnetism of the electromagnet. When the magnetism of the electromagnet increases, the design of the connecting spring can be used to magnetically absorb the metal plate, and the top frame and the water pump are electrically connected. Through the above operation, the water pump obtains a power source, which is convenient for extracting and replacing the water inside the water pipe according to the temperature control requirements of the lubricating oil, so that the water pipe can maintain a good cooling effect on the oil pipe and avoid continuous operation of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main cross-sectional structure of the welded volute and the multi-stage turbine vacuum machine of the present invention;

[0022] Figure 2 It is a schematic diagram of the distribution structure of the supporting bearing box and auxiliary components of the welded volute and multi-stage turbine vacuum machine of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the auxiliary components of the welding volute and the multi-stage turbine vacuum machine of the present invention;

[0024] Figure 4 It is a schematic diagram of the connection structure of the welding volute and the auxiliary components and the cooling components of the multi-stage turbine vacuum machine of the present invention;

[0025] Figure 5 It is a schematic diagram of the internal structure of the transfer box of the welding volute and multi-stage turbine vacuum machine of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the stable assembly of the welded volute and the multi-stage turbine vacuum machine of the present invention;

[0027] Figure 7 The invention is a method for welding a spiral casing and a multi-stage turbine vacuum machine. Figure 4 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1, upper housing; 2, lower housing; 3, rotor assembly; 4, thrust bearing box; 5, support bearing box; 6, air outlet; 7, extension cover; 8, balance plate; 9, sealing gasket; 10, auxiliary components; 1001, auxiliary cylinder; 1002, oil pipe; 1003, outer cover; 11, platform seat; 12, fixing bolts; 13, auxiliary components; 1301, auxiliary plate; 1302, guide shaft; 1303, connecting plate; 1304, connecting shaft; 1305, extension plate; 1 4. Cooling component; 1401. Outer tube; 1402. Fin; 1403. Water pipe; 1404. Oil pump; 15. Connecting pipe; 16. Top plate; 17. Transition pipe; 18. Transfer box; 19. Stabilizing component; 1901. Gas rod; 1902. Mounting plate; 1903. Mounting column; 1904. Displacement sensor; 1905. Receiver; 20. Thermistor; 21. Power pack; 22. Electromagnet; 23. Metal plate; 24. Connecting top frame; 25. Connecting spring. DETAILED DESCRIPTION

[0029] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] like Figure 1-Figure 6As shown, the present invention provides a technical solution: a welded volute and a multi-stage turbine vacuum machine, comprising an upper casing 1, a lower casing 2, a rotor assembly 3, a thrust bearing box 4, a support bearing box 5, an air outlet 6, an extension cover 7, a balance plate 8, a sealing gasket 9, an auxiliary component 10, an auxiliary cylinder 1001, an oil pipe 1002, an outer cover 1003, a platform seat 11, a fixing bolt 12, an auxiliary component 13, an auxiliary plate 1301, a guide shaft 1302, a connecting plate 1303, a connecting shaft 1304, an extension plate 1305, a cooling component 14, Outer tube 1401, fin 1402, water pipe 1403, oil pump 1404, connecting pipe 15, top plate 16, transition pipe 17, transfer box 18, stabilizing assembly 19, gas rod 1901, mounting plate 1902, mounting column 1903, displacement sensor 1904, receiver 1905, thermistor 20, power pack 21, electromagnet 22, metal plate 23, connecting top frame 24 and connecting spring 25, the lower end of the upper half casing 1 is provided with a lower half casing 2, the lower half casing 2 is provided with mounting brackets at the front and rear, and the brackets are provided with mounting holes and positioning pin holes, the upper half casing 1 and the lower half casing 2 are positioned and installed and adjusted with the thrust bearing box 4 and the support bearing box 5 to ensure the coaxiality between the rotor group 3 and the casing sealing assembly. The multi-stage turbine vacuum machine adopts a welded casing. The size and relative position of the air inlet of each stage can be calculated according to the gas volume to ensure that the gas flow rate is within a reasonable range. At the same time, the position of the air inlet can be appropriately adjusted to facilitate the connection with the inlet pipe. In addition, the number of casing stages is matched according to the number of impeller stages, generally three to four stages, and the impeller When the number of stages is three, the number of casing stages corresponds to three, and three air inlets are provided. When the number of impeller stages is four, the number of casing stages corresponds to four, and four air inlets are provided. The casing adopts an upper and lower center-divided structure, and the air inlets are all arranged at the bottom of the casing, and the air outlet 6 is arranged at the top, which is convenient for connection with the inlet pipe and installation of the equipment. The air inlet is arranged at the bottom of the casing, and a rectangular interface is adopted to connect with the pipe through a reducer to change from square to round. The number of air inlets adopts three or four inlets according to the vacuum requirements of the paper machine, and each air inlet is designed separately without affecting each other.The length of the air inlet size ranges from 0.4 to 1.0 m, the width ranges from 0.2 to 0.4 m, the maximum area of ​​the air inlet is 0.4 m2, and the minimum area is 0.08 m2. Calculated based on the gas flow rate of 20-30 m / min, the corresponding flow range is 96-720 m3 / min. Compared with the cast casing, the air inlet size flow of DN600 is 339-509 m3 / min; the air inlet size flow of DN500 is 236-353 m3 / min; the air inlet size flow of DN400 is 151-226 m3 / min. The welded casing can meet the larger volume change requirements of the paper machine vacuum. A rotor group 3 is installed between the upper casing 1 and the lower casing 2, and the rotor group 3 A balancing disk 8 is installed at one end, a sealing gasket 9 is arranged on the outer side of the balancing disk 8, sealing grooves are arranged at both ends of the casing, shaft end seals and balancing disk 8 seals are installed to reduce gas leakage losses, an air replenishment reflux device installation groove is provided between the stages of the casing, and the air replenishment reflux device can be installed and adjusted in position, a support bearing box 5 is provided on one side of the lower casing 2, and a thrust bearing box 4 is installed on the outer side of the lower casing 2 away from the support bearing box 5, auxiliary components 10 for assisting the cooling and lubrication of the rotor group 3 are arranged on one side of the thrust bearing box 4 and the support bearing box 5, and two groups of auxiliary components 10 are arranged, the air outlet 6 is arranged above the upper casing 1, and platform seats 11 are arranged at the four corners of the bottom of the upper casing 1.

[0031] like Figure 1 , Figure 3 and Figure 6 As shown, a stabilizing assembly 19 for maintaining the stability of the vacuum machine is installed inside the platform seat 11, and the stabilizing assembly 19 includes a gas rod 1901, a mounting plate 1902, a mounting column 1903, a displacement sensor 1904 and a receiver 1905. The stabilizing assembly 19 is provided with four groups, and a receiver 1905 is installed below the displacement sensor 1904. The output end of the gas rod 1901 is provided with a mounting plate 1902, and a mounting column 1903 is provided on one side of the bottom of the mounting plate 1902. The displacement sensor 1904 is provided at the bottom of the mounting column 1903, and the receiver 1905 is installed on one side of the bottom of the gas rod 1901. The fixed component 19 is located at the center dividing surface of the casing, which can reduce the displacement caused by thermal deformation of the casing and at the same time improve the stability of the unit. The design of the gas rod 1901 can drive the height of the entire vacuum machine to be adjusted, which is conducive to the vacuum machine being suitable for working environments at different heights. The four gas rods 1901 are independently controlled, and the gas rods 1901 are electrically connected to the receiver 1905. Therefore, when the displacement sensor 1904 detects a change in displacement, the design of the gas rods 1901 can be used to automatically make up for the displacement difference, thereby ensuring that the vacuum machine remains stable during long-term operation, ensuring the horizontality of the vacuum unit, and making the operation of the device more reliable.

[0032] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7As shown, the auxiliary component 10 includes an auxiliary cylinder 1001, an oil pipe 1002 and an outer cover 1003, and the auxiliary cylinder 1001 is arranged at both ends of the rotor group 3, the upper and lower sides of the auxiliary cylinder 1001 are installed with oil pipes 1002, the outer surface of the auxiliary cylinder 1001 is provided with an outer cover 1003, and a cooling component 14 for auxiliary cooling is arranged on the outside of a group of oil pipes 1002, and the cooling component 14 includes an outer tube 1401, fins 1402, a water pipe 1403 and an oil pump 1404, the outer surface of the outer tube 1401 is annularly provided with fins 1402, and one end of the outer tube 1401 is installed with a water pipe 1403, one end of the water pipe 1403 is connected to a water pump, the end of the oil pipe 1002 is installed with an oil pump 1404, and the water pipe 1402 is connected to a water pump. 03 is installed with a thermistor 20 on the outside, and one end of the thermistor 20 is installed with a power supply group 21 through a wire, one end of the power supply group 21 is connected to an electromagnet 22 through a wire, and a metal plate 23 is provided on one side of the electromagnet 22, and a connecting spring 25 is installed on the outer surface of one side of the metal plate 23, and a connecting top frame 24 is provided on the end of the connecting spring 25. When the oil pipe 1002 flows through the rotor group and the bearing rotation area, the water pipe 1403 outside the oil pipe 1002 will be used to absorb heat and cool down, which is beneficial to re-emulsify the lubricating oil in the oil pipe 1002 and cool down the rotor group and the bearing. At the same time, the design that the thermistor 20 is affected by the temperature increase of the water pipe 1403 can be used to reduce the resistance of the thermistor 20, thereby reducing the current. Increase, the magnetism of the electromagnet 22 increases, and when the magnetism of the electromagnet 22 increases, the design of the connecting spring 25 can be used to magnetically absorb the metal plate 23, and the connecting top frame 24 is electrically connected to the water pump, so that the water pump obtains a power source through the above operation, which is convenient for extracting and replacing the water inside the water pipe 1403 according to the temperature control requirements of the lubricating oil, so that the water pipe 1403 can maintain a good cooling effect on the oil pipe 1002, and also avoid continuous operation of the water pump, wherein the thermistor 20 is an NTC thermistor, and the resistance value decreases with the increase of temperature, and the oil pump 1404 is installed with a transfer box 18 through a pipeline, and the transfer box 18 is a hollow structure, and a transition pipe 17 is arranged inside the transfer box 18, and one end of the transition pipe 17 is installed through a pipeline There is a connecting pipe 15, one end of which is connected to the upper oil pipe 1002 inside the auxiliary cylinder 1001. The two groups of oil pipes 1002 are parallel to each other. The two ends of the rotor group 3 and the bearing are in a long-term rotating state. Through the design of the oil pump 1404 and the oil pipe 1002, it is convenient to guide the lubricating oil stored in the transition pipe 17 in the transfer box 18 to the inside of the auxiliary cylinder 1001, and the auxiliary cylinder 1001 is sealed at both ends of the rotor group 3, so that the lubricating oil can be immersed in the rotating area of ​​the rotor group 3 and the bearing, and can be lubricated when the above two rotate, reducing the friction resistance generated by the rotation. In addition, through the design of the oil pump 1404 and the oil pipe 1002, the lubricating oil flowing out of the bottom of the auxiliary cylinder 1001 can be pumped into the transition pipe 17 again.When the lubricating oil is circulating, the design of the water pipe 1403 and the water pump can be used to inject cooling water into the outer tube 1401, so as to cool the lubricating oil after absorbing heat, and to use the design of the oil pump 1404 to absorb the lubricating oil to between the rotor group 3 and the bearing again, so as to lubricate the rotor group 3 and the bearing, and to cool the sealing gasket between the rotor group 3 and the bearing, so as to avoid the sealing gasket being in a high temperature state for a long time, resulting in poor sealing effect between the rotor group 3 and the bearing. An extension cover 7 is provided on the top of the air outlet 6, and an auxiliary component 13 for detecting the air outlet state is installed inside the extension cover 7, the auxiliary component 13 includes an auxiliary plate 1301 and a guide shaft 1302, and the guide shafts 1302 are installed at both ends of the auxiliary plate 1301, and the auxiliary component 13 also includes a connecting plate 1303, a connecting shaft 1304 and an extension plate 1305. The guide shaft 1302 is rotatably connected to the extension cover 7. A connecting shaft 1304 is installed at the end of the guide shaft 1302, and a connecting disk 1303 is arranged outside the connecting shaft 1304. An extension plate 1305 is installed on the outer surface of the connecting shaft 1304. When the air outlet 6 discharges air, the force will directly act on the auxiliary plate 1301, so that the auxiliary plate 1301 can rotate by utilizing the design of the guide shaft 1302, and the guide shaft 1302 is connected to the connecting shaft 1304, so that the connecting shaft 1304 will follow the movement, and the extension plate 1305 connected to the connecting shaft 1304 can rotate synchronously, so that the air outlet of the air outlet 6 can be observed intuitively from the outside, and the rotation angle of the auxiliary plate 1301 can be adjusted according to the required air outlet direction. The extension plate 1305 is fixed to the connecting disk 1303 by the design of screws, so as to guide the direction of the air outlet 6.

[0033] In summary, if Figure 1-Figure 7As shown, the welded volute and the multi-stage turbine vacuum machine, when in use, the multi-stage turbine vacuum machine adopts a welded casing, the size and relative position of each stage of the air inlet can be calculated according to the gas volume, to ensure that the gas flow rate is within a reasonable range, and the position of the air inlet can be appropriately adjusted to facilitate the connection with the inlet pipe. In addition, the number of casings is matched according to the number of impellers, generally three to four. When the impeller number is three, the casing number corresponds to three, and three air inlets are provided. When the impeller number is four, the casing number corresponds to four, and four air inlets are provided. The casing adopts an upper and lower center-divided structure, the air inlets are all arranged at the bottom of the casing, and the air outlet 6 is arranged at the top, which is convenient for connection with the inlet pipe and installation of the equipment. The air inlet is arranged at the bottom of the casing, and a rectangular interface is adopted to connect to the pipeline through a reducer to change from square to round. The number of air inlets adopts three or four inlets according to the vacuum requirements of the paper machine, and each air inlet is designed separately without affecting each other. The length of the air inlet size ranges from 0.4-1.0m, the width ranges from 0.2-0.4m, the maximum area of ​​the air inlet is 0.4m2, and the minimum area is 0.08m2. Calculated based on the gas flow rate of 20-30m / min, the corresponding flow range is 96-720m3 / min. Compared with the casting casing, the air inlet size of DN600 has a flow rate of 339-509m3 / min; the air inlet size of DN500 has a flow rate of 236-353m3 / min; the air inlet size of DN400 has a flow rate of The volume is 151-226m3 / min. The welded casing can meet the needs of larger volume changes in the vacuum of the paper machine. Seal grooves are provided at both ends of the casing to install the shaft end seal and the balance plate 8 seal to reduce the loss of gas leakage. An air replenishment reflux device installation groove is provided between the stages of the casing to install and adjust the position of the air replenishment reflux device. The two ends of the rotor group 3 and the bearing are in a long-term rotation state. Through the design of the oil pump 1404 and the oil pipe 1002, it is convenient to guide the lubricating oil stored in the transition pipe 17 in the transfer box 18 to the auxiliary The auxiliary cylinder 1001 is sealed inside and is arranged at both ends of the rotor group 3, so that the lubricating oil can penetrate into the rotor group 3 and the bearing rotation area, and can lubricate the above two when they rotate, reducing the friction resistance caused by the rotation. In addition, the lubricating oil flowing out of the bottom of the auxiliary cylinder 1001 can be pumped into the transition pipe 17 again through the design of the oil pump 1404 and the oil pipe 1002. When the lubricating oil circulates, the design of the water pipe 1403 and the water pump can be used to inject cooling water into the outer tube 1401, which is convenient for The lubricating oil liquid after absorbing heat is cooled down, so that the lubricating oil liquid can be sucked into the space between the rotor group 3 and the bearing by using the design of the oil pump 1404 again, so as to lubricate the space between the rotor group 3 and the bearing, and cool down the sealing gasket between the rotor group 3 and the bearing, so as to avoid the sealing gasket being in a high temperature state for a long time, resulting in poor sealing effect between the rotor group 3 and the bearing. When the oil pipe 1002 flows through the rotating area of ​​the rotor group and the bearing, the water pipe 1403 outside the oil pipe 1002 is used to absorb heat and cool down.It is beneficial to re-emulsify the lubricating oil in the oil pipe 1002 and cool down the rotor group and the bearing. At the same time, the design that the temperature of the thermistor 20 is increased by the water pipe 1403 can be used to reduce the resistance of the thermistor 20, thereby increasing the current and increasing the magnetism of the electromagnet 22. When the magnetism of the electromagnet 22 increases, the design of the connecting spring 25 can be used to magnetically absorb the metal plate 23, and the connecting top frame 24 is electrically connected to the water pump, so that the water pump obtains a power source through the above operation, and it is convenient to extract and replace the water inside the water pipe 1403 according to the temperature control requirements of the lubricating oil, so that the water pipe 1403 can maintain a good cooling effect on the oil pipe 1002 and avoid continuous operation of the water pump. The thermistor 20 is an NTC thermistor, and the resistance value decreases with the increase of temperature. In addition, when the air outlet 6 discharges air, the force will directly act on the auxiliary plate 1301, so that the auxiliary plate 1301 can generate rotation by using the design of the guide shaft 1302. The guide shaft 1302 is connected to the connecting shaft 1304, so that the connecting shaft 1304 will move with it, and the extension plate 1305 connected to the connecting shaft 1304 can rotate synchronously, which is convenient for visually observing the air outlet of the air outlet 6 from the outside, and the rotation angle of the auxiliary plate 1301 can be adjusted according to the required air outlet direction. The extension plate 1305 and the connecting plate 1303 are fixed by the design of the screws, which is convenient for guiding the direction of the air outlet 6. Secondly, the design of the gas rod 1901 can drive the height of the entire vacuum machine to be adjusted, which is conducive to the vacuum machine being suitable for working environments of different heights. The four gas rods 1901 are independently controlled, and the gas rods 1901 are electrically connected to the receiver 1905, so that when the displacement sensor 1904 detects a change in displacement, the design of the gas rod 1901 can be used to automatically make up for the displacement difference, ensuring that the vacuum machine remains stable during long-term operation, ensuring the horizontality of the vacuum unit, and making the device more reliable. ,

[0034] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A welded volute and multi-stage turbine vacuum machine, comprising an upper casing (1) and an air outlet (6), characterized in that: A lower half casing (2) is arranged at the lower end of the upper half casing (1), a rotor group (3) is installed between the upper half casing (1) and the lower half casing (2), and a balancing disk (8) is installed at one end of the rotor group (3), a sealing gasket (9) is arranged on one side of the outer side of the balancing disk (8), a supporting bearing box (5) is arranged on one side of the lower half casing (2), and a thrust bearing box (4) is installed on the outer side of the lower half casing (2) away from the supporting bearing box (5), the air outlet (6) is arranged above the upper half casing (1), and platform seats (11) are arranged at the four corners of the bottom of the upper half casing (1), and the platform seats (11) are arranged at the four corners of the bottom of the upper half casing (1). A stabilizing assembly (19) for maintaining the stability of the vacuum machine is installed inside the pedestal (11), and the stabilizing assembly (19) comprises a gas rod (1901), a mounting plate (1902), a mounting column (1903), a displacement sensor (1904) and a receiver (1905). The output end of the gas rod (1901) is installed with a mounting plate (1902), and a mounting column (1903) is arranged on one side of the bottom of the mounting plate (1902). A displacement sensor (1904) is arranged at the bottom of the mounting column (1903), and a receiver (1905) is installed on one side of the bottom of the gas rod (1901).

2. The welded volute and multi-stage turbine vacuum machine according to claim 1, characterized in that: The stabilizing components (19) are provided in four groups, and a receiver (1905) is installed below the displacement sensor (1904).

3. The welded volute and multi-stage turbine vacuum machine according to claim 1, characterized in that: An auxiliary component (10) for assisting the cooling and lubrication of the rotor group (3) is arranged on one side of the thrust bearing box (4) and the support bearing box (5), and two groups of the auxiliary components (10) are arranged.

4. The welded volute and multi-stage turbine vacuum machine according to claim 3, characterized in that: The auxiliary component (10) comprises an auxiliary cylinder (1001), an oil pipe (1002) and an outer cover (1003), wherein the auxiliary cylinder (1001) is arranged at both ends of the rotor assembly (3), the upper and lower sides of the interior of the auxiliary cylinder (1001) are both provided with oil pipes (1002), and the outer surface of the auxiliary cylinder (1001) is provided with an outer cover (1003).

5. The welded volute and multi-stage turbine vacuum machine according to claim 4, characterized in that: A cooling assembly (14) for assisting in cooling is arranged outside a group of the oil pipes (1002), and the cooling assembly (14) comprises an outer pipe (1401), fins (1402), a water pipe (1403) and an oil pump (1404). The outer surface of the outer pipe (1401) is provided with fins (1402) in an annular shape, and a water pipe (1403) is installed at one end of the outer pipe (1401). One end of the water pipe (1403) is connected to a water pump. An oil pump (1404) is installed on the outside of the water pipe (1403), a thermistor (20) is installed on one end of the thermistor (20) via a wire, a power supply group (21) is installed on one end of the thermistor (20) via a wire, an electromagnet (22) is connected to one end of the power supply group (21) via a wire, a metal plate (23) is provided on one side of the electromagnet (22), a connecting spring (25) is installed on the outer surface of one side of the metal plate (23), and a connecting top frame (24) is provided at the end of the connecting spring (25).

6. The welded volute and multi-stage turbine vacuum machine according to claim 5, characterized in that: The oil pump (1404) is installed with a transfer box (18) through a pipeline, and the transfer box (18) is a hollow structure.

7. The welded volute and multi-stage turbine vacuum machine according to claim 6, characterized in that: A transition pipe (17) is arranged inside the transfer box (18), and a connecting pipe (15) is installed at one end of the transition pipe (17) through a pipeline.

8. The welded volute and multi-stage turbine vacuum machine according to claim 7, characterized in that: One end of the connecting tube (15) is connected to the oil pipe (1002) on the upper side of the auxiliary tube (1001), and the two groups of oil pipes (1002) are parallel to each other.

9. The welded volute and multi-stage turbine vacuum machine according to claim 1, characterized in that: An extension cover (7) is provided at the top of the air outlet (6), and an auxiliary component (13) for detecting the air outlet status is installed inside the extension cover (7), and the auxiliary component (13) comprises an auxiliary plate (1301) and a guide shaft (1302), and the guide shafts (1302) are installed at both ends of the auxiliary plate (1301).

10. The welded volute and multi-stage turbine vacuum machine according to claim 9, characterized in that: The auxiliary component (13) further comprises a connecting disk (1303), a connecting shaft (1304) and an extension plate (1305), and the guide shaft (1302) is rotatably connected to the extension cover (7), the connecting shaft (1304) is installed at the end of the guide shaft (1302), and the connecting disk (1303) is arranged outside the connecting shaft (1304), and the extension plate (1305) is installed on the outer surface of the connecting shaft (1304).

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