Sealing transmission device for centrifugal separator

Abstract

The utility model discloses a sealing transmission device for a centrifugal separator, which comprises a sealing device and a coupler central shaft unit, the coupler central shaft unit rotatably and hermetically penetrates through the lower part of a shell, the lower part of the coupler central shaft unit is fixedly connected with a main motor, and the coupler central shaft unit is arranged in the sealing device. The top of the coupling central shaft unit is fixedly connected with the lower part of the separation barrel main shaft; and the sealing device is used for isolating and sealing the central shaft unit of the coupling. The sealing transmission device for the centrifugal separator is novel in structure and high in practicability. According to the sealing transmission device for the centrifugal separator, sealing and transmission of the centrifugal cylinder and the main motor can be achieved, the centrifugal force effect is improved due to the good sealing performance, and water vapor in dead steam can be basically and thoroughly separated.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler exhaust steam treatment, and more particularly to a sealing transmission device for a centrifugal separator. Background Art

[0002] Boiler systems play a critical role in the cigarette industry's production process, providing the heat energy required for the production process. However, boiler operation generates significant amounts of exhaust steam, which is often discharged directly into the atmosphere as waste water vapor. This treatment approach presents certain issues, the most significant of which are energy waste and environmental pollution. In the cigarette industry, energy is an indispensable resource in the production process, so energy waste results in direct economic losses for the company. Furthermore, the exhaust water vapor discharged into the atmosphere contains significant amounts of water vapor and harmful gases, which pollute the environment and impact the quality of life of surrounding residents. Therefore, addressing the energy waste and environmental pollution issues associated with boiler exhaust steam treatment is of great significance.

[0003] Several solutions have been proposed for treating boiler exhaust steam. One common approach involves separating the water vapor through centrifugation. However, this existing method suffers from leaks and poor centrifugal efficiency due to poor sealing between the centrifuge cylinder and the external main motor drive, which compromises water vapor separation. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing transmission device for a centrifugal separator, in order to solve the technical problems existing in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sealed transmission device for a centrifugal separator includes: a sealing device and a coupling center axis unit. The coupling center axis unit rotation seal passes through the lower part of the shell, the lower part of the coupling center axis unit is fixedly connected to the main motor, the coupling center axis unit is arranged in the sealing device, and the top of the coupling center axis unit is fixedly connected to the lower part of the separation barrel main shaft; the sealing device is used to isolate and seal the coupling center axis unit.

[0007] In some embodiments, the sealing device includes a sealing device body and a sealing cover, the sealing device body is sealed with the bottom of the shell, an installation cavity is provided in the sealing device body, the coupling center axis unit is arranged in the installation cavity, and the sealing cover is installed on the sealing device body for isolating and sealing the coupling center axis unit.

[0008] In some embodiments, the coupling center shaft unit includes a coupling center shaft and a main transmission bearing. The lower diameter of the mounting cavity is larger than the upper diameter of the mounting cavity. Main transmission bearings are installed in the lower part, the middle part and the upper part of the mounting cavity. The coupling center shaft is rotatably connected relative to the sealing device body through the main transmission bearings arranged in the lower part, the middle part and the upper part of the mounting cavity; the upper seal of the coupling center shaft passes through the sealing cover and is connected to the main shaft of the separation cylinder; the lower part of the coupling center shaft is connected to the main motor.

[0009] In some embodiments, the central axis of the coupling is connected to the bottom wall of the shell in a rotating sealing manner via a sealing ring; the sealing device body is connected to the bottom of the shell in a sealing manner via a sealing ring, the sealing cover is connected to the sealing device body in a sealing manner via a sealing ring, and the sealing cover is connected to the central axis of the coupling in a rotating sealing manner via a sealing ring.

[0010] In some embodiments, the lower diameter of the sealing device body is larger than the upper diameter.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The sealing transmission device for a centrifugal separator disclosed in the present application has a novel structure and strong practicality. The sealing transmission device for a centrifugal separator enables the centrifugal cylinder and the main motor to achieve sealing and transmission. Since the sealing performance is good, the effect of the centrifugal force is improved, and the water vapor can be basically completely separated. The separated water is transported to the deaerator through an insulated pipeline, and then transported to the boiler for heating through an insulated pipeline. This treatment method avoids the loss of energy and water quality, improves energy utilization efficiency, and reduces energy consumption costs. By applying this equipment, it is basically possible to completely separate the water vapor in the exhaust steam, realize the simplification of the material transportation state, improve energy utilization efficiency, and reduce energy consumption costs. Therefore, the equipment has high practical value and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a sealing transmission device for a centrifugal separator of the present utility model;

[0014] Figure 2 This is a schematic structural diagram of a sealing transmission device for a centrifugal separator of the present utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the sealing transmission device for the centrifugal separator of the utility model;

[0016] Figure 4 It is a schematic diagram of the steam inlet hood of the present utility model.

[0017] Figure 5It is a schematic diagram of the sealing transmission device of the present utility model.

[0018] Figure 6 It is a schematic diagram of the water vapor separation and recovery equipment of the present utility model.

[0019] Markings in the figure: 1-main motor, 2-sealing device, 2.1-main transmission bearing, 2.2-coupling center shaft, 3-centrifugal cylinder, 3.1-separation flange, 3.2-centrifugal ribs, 3.3-separation cylinder lower spoke, 3.4-separation cylinder main shaft, 3.5-separation cylinder upper spoke, 3.6-separation cylinder fixing nut, 4-steam inlet cover, 4.1-upper end bearing, 4.2-steam inlet cover spoke, 5-exhaust steam inlet, 6-exhaust unit, 6.1-exhaust turbine , 7-exhaust motor, 8-exhaust port, 9-pressure sensor, 10-upper shell, 11-lower shell, 12-condensate outlet, 13-connecting bolts, 14-safety valve, 15-liquid level detector, 100-centrifugal separator, 101-steam pipeline, 102-separation condensate pipeline, 200-condensate collection tank, 300-water pump, 301-condensate pipeline, 400-deaerator, 401-water supply pipeline, 500-boiler. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0021] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0023] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0024] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or display that comprises a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product, or display.

[0025] The following will be combined Figures 1-6 , a sealed transmission device for a centrifugal separator involved in the embodiments of this application is described in detail. It is worth noting that the following embodiments are only used to explain this application and do not constitute a limitation of this application. To better illustrate this application, it is applied to a water vapor separation and recovery device for detailed description below.

[0026] Embodiment 1:

[0027] Figures 1-6 A water vapor separation and recovery device includes: a centrifugal separator 100, a deaerator 400, and a water pump 300; the centrifugal separator 100 is used to separate water vapor from exhaust steam; the separated steam enters the auxiliary heating port of the deaerator 400 through the steam pipeline 101; the separated condensed water enters the condensed water collection tank 200 through the separation condensed water pipeline 102, and the water pump 300 is used to pump the condensed water collected in the condensed water collection tank 200 into the condensed water reuse port of the deaerator 400 through the condensed water pipeline 301; the deoxygenated water is pumped into the boiler 500 for use through the water supply pipeline 401.

[0028] The present application provides a water vapor separation and recovery device, including a centrifugal separator 100, an insulated pipeline, a deaerator 400 and a boiler 500. The centrifugal separator 100 is used to separate water vapor. The separated water is transported to the deaerator 400 through the insulated pipeline, and then transported to the boiler 500 through the insulated pipeline for heating to improve energy utilization and reduce energy consumption costs. Its advantage is that it can completely separate water vapor, realize the single state of material transportation, improve energy utilization while reducing energy consumption costs. The functions of each core component are as follows:

[0029] Centrifugal separator 100: Located at the head of the water vapor separation and recovery equipment, its primary function is to separate water vapor from exhaust steam through centrifugal force. Centrifugal separator 100 features a rational internal structure and utilizes highly efficient separation technology, enabling rapid and thorough separation of water vapor.

[0030] Insulated piping: This includes steam piping 101, condensate piping 301, and water supply piping 401. This piping system connects the centrifugal separator 100, deaerator 400, and boiler 500. Its primary function is to transport separated water vapor to the next step for processing. The insulated piping utilizes highly efficient insulation materials to ensure that the separated water vapor maintains a suitable temperature during transportation, minimizing energy and water quality losses.

[0031] Deaerator 400: Located in the middle of the insulated piping, its primary function is to remove oxygen from the water. Deaerator 400 is currently available, so we won't elaborate on it here. It effectively absorbs and removes oxygen from the water, protecting the boiler 500 system from corrosion and extending the equipment's service life.

[0032] Boiler 500: Located at the end of the insulated pipeline, it serves as the final destination for the entire water vapor separation and recovery system. The separated water vapor is transported through the insulated pipeline to Boiler 500 for heating. The heating system converts the water vapor into steam to meet various needs in the production process. Boiler 500's highly efficient heating system rapidly heats the water vapor to high temperature and pressure, enabling the reuse of the steam.

[0033] In some embodiments, the centrifugal separator 100 includes: a housing, a centrifugal drum 3, a sealing transmission device, a main motor 1, and an exhaust unit. The housing has an exhaust steam inlet 5 on the upper side, a condensate outlet 12 at the lower portion, and an air outlet at the top. The centrifugal drum 3 is rotatably disposed within the housing and is used to separate water vapor from the exhaust steam introduced into the housing. The sealing transmission device is disposed through the lower portion of the housing and is connected to the centrifugal drum 3. The main motor 1 is disposed outside the housing and is used to drive the sealing transmission device to rotate. The exhaust unit is disposed at the air outlet and is used to discharge the gas after water vapor separation. The exhaust steam introduced from the exhaust steam inlet passes through the centrifugal drum 3 for water vapor separation, so that the separated liquid is discharged from the condensate outlet 12 at the lower portion, and the separated steam is discharged from the air outlet.

[0034] Centrifugal separator 100 is a key component of the water vapor separation and recovery equipment, and its performance directly affects the separation effect. In practical design, the internal components of centrifugal separator 100 can be made of corrosion-resistant and wear-resistant materials, such as stainless steel and acid- and alkali-resistant materials, to ensure long-term stable operation of the equipment.

[0035] Specifically, the shell includes an upper shell 10 and a lower shell, and the upper shell and the lower shell are sealed by connecting bolts 13 and a sealing ring; the exhaust steam inlet is opened on the side wall of the upper shell, the air outlet is opened on the top of the upper shell, and the condensate outlet 12 is opened at the bottom of the lower shell.

[0036] In some embodiments, the centrifuge barrel 3 includes: a centrifuge barrel 3 body, a spoke spindle unit, the centrifuge barrel 3 body is larger at the bottom and smaller at the top, and the bottom and top of the centrifuge barrel 3 body are both opened. Specifically, the upper part of the centrifuge barrel 3 body is truncated cone-shaped; and there is a gap between the top opening of the centrifuge barrel 3 body and the air outlet; there is a gap between the bottom opening of the centrifuge barrel 3 body and the bottom of the shell; the spoke spindle unit is arranged in the centrifuge barrel 3 body and is connected to the inner wall of the centrifuge barrel 3 body; the lower part of the spoke spindle unit is connected to the sealing transmission device.

[0037] In some embodiments, the centrifuge cylinder 3 is provided with a downwardly inclined separation flange 3.1 at the top and end of the truncated cone, as well as at the lower end of the centrifuge cylinder 3. Several centrifugal fins 3.2 are provided on the outer wall of the truncated cone and the outer wall of the lower portion of the centrifuge cylinder 3, respectively. The centrifugal fins are arranged at an angle.

[0038] That is, the separation flange 3.1 is divided into an upper flange, a middle flange, and a lower flange to ensure the separation effect while preventing the structure from being too complicated. The upper flange increases the centrifugal force on the upper part of the separation barrel, preventing condensed water from entering the exhaust unit 6 from the outer edge of the steam inlet hood. The centrifugal ribs have a certain torsion angle, so that the separation direction is toward the bottom. Some droplets attached to the separation barrel are collected downward. By providing the middle flange and the lower flange to increase the separation centrifugal force, it can be ensured that this part of the liquid is effectively separated. The lower flange increases the centrifugal force of the lower air inlet of the centrifugal barrel 3, and at the same time increases the diameter of the suction port, thereby reducing the suction force on the liquid and preventing the liquid from being sucked into the interior of the separation barrel.

[0039] In some embodiments, the sealing transmission device includes: a sealing device 2, a coupling center axis unit, the coupling center axis unit rotation seal passes through the lower part of the shell, the lower part of the coupling center axis unit is fixedly connected to the main motor 1, the coupling center axis unit is arranged in the sealing device 2, and the top of the coupling center axis unit is fixedly connected to the lower part of the separation cylinder main shaft; the sealing device 2 is used to isolate and seal the coupling center axis unit.

[0040] The sealing device 2 comprises a main body and a sealing cover. The lower diameter of the main body is larger than the upper diameter. This improves the stability of the overall structure during rotation. The main body is sealed to the bottom of the housing. A mounting cavity is defined within the main body, and the coupling's central axis unit is positioned within this cavity. The sealing cover is mounted on the main body to isolate and seal the coupling's central axis unit.

[0041] The coupling center shaft unit includes a coupling center shaft 2.2 and a main transmission bearing 2.1. The lower diameter of the installation cavity is larger than the upper diameter of the installation cavity. Main transmission bearings are installed in the lower part, the middle part and the upper part of the installation cavity. The coupling center shaft is rotatably connected to the main body of the sealing device 2 through the main transmission bearings arranged in the lower part, the middle part and the upper part of the installation cavity; the upper seal of the coupling center shaft passes through the sealing cover and is connected to the main shaft of the separation cylinder; the lower part of the coupling center shaft is connected to the main motor 1.

[0042] The central axis of the coupling is connected to the bottom wall of the shell in a rotating and sealing manner via a sealing ring; the main body of the sealing device 2 is connected to the bottom of the shell in a sealing manner via a sealing ring, the sealing cover is connected to the main body of the sealing device 2 in a sealing manner via a sealing ring, and the sealing cover is connected to the central axis of the coupling in a rotating and sealing manner via a sealing ring.

[0043] The main motor 1 is located at the center of the lower housing's exterior, while the sealing device 2 is located at the center of the lower housing's interior. Both housings are fixedly connected to the lower housing's interior and exterior. The coupling's central axis rotates freely via three pairs of main drive bearings. The main motor 1 shaft is connected to the centrifuge cylinder's main shaft via the coupling's central axis, transmitting power from the main motor 1. The sealing device 2 allows the main motor 1 to rotate the centrifuge cylinder 3, while also preventing internal condensate from leaking.

[0044] A separation flange 3.1 and centrifugal ribs are distributed on the outside of the separation cylinder. Exhaust steam enters downward through the exhaust steam inlet. The centrifugal cylinder 3 rotates clockwise when viewed from the direction of the main motor 1. The centrifugal ribs separate the condensed water in the exhaust steam toward the inner wall of the shell. The centrifugal ribs have a certain torsion angle, so that the separation force is directed toward the bottom of the shell. At the same time, a larger centrifugal force is generated by the separation flange 3.1 to improve the condensed water separation effect. After separation, the condensed water gathers at the bottom of the lower shell and is directly discharged from the condensed water outlet 12.

[0045] The centrifugal ribs extend on the separation flange 3.1, firstly, to enable the separation ribs to obtain a better centrifugal effect, and secondly, to further strengthen the structure of the separation flange 3.1.

[0046] In some embodiments, the spoke spindle unit includes: a separation cylinder spindle 3.4, an upper spoke 3.5 of the separation cylinder, a lower spoke 3.3 of the separation cylinder, and several upper spokes and lower spokes of the separation cylinder are respectively arranged on the separation cylinder spindle, and the other ends of the upper spokes and lower spokes of the separation cylinder are respectively connected to the inner wall of the centrifugal cylinder 3 body; the lower end of the separation cylinder spindle is connected to the sealing transmission device.

[0047] In some embodiments, the centrifugal cylinder 3 is keyed to the separator main shaft via the lower and upper spokes of the separator, and secured via a separator fixing nut 3.6. The spoke main shaft unit also includes: a steam inlet hood 4, the central portion of which has a through hole that matches the top opening of the centrifugal cylinder 3 body, the distal end of which is provided with an air intake plate extending obliquely downward, with a gap between the air intake plate and the upper separation flange 3.1. The spoke main shaft unit also includes: steam inlet hood spokes 4.2 and an upper end bearing 4.1, the upper end bearing being connected to the inner side of the air intake plate via the steam inlet hood spokes, and the upper portion of the separator main shaft being connected to the upper end bearing.

[0048] The exhaust unit uses the exhaust motor to drive the exhaust turbine, discharging steam from the exhaust steam system through exhaust port 8. Because the separator drum exerts little centrifugal force on the steam, the steam flows upward and enters the exhaust unit through the outer edge of the steam inlet hood when the exhaust unit is operating. Simultaneously, the spokes below the separator drum generate an upward airflow as the drum rotates, conveying the steam generated by the condensed water in the lower shell upward, through the steam inlet hood, and into the exhaust unit.

[0049] The exhaust unit includes: an exhaust cavity, an exhaust wheel 6.1, and an exhaust motor 7. The exhaust cavity is arranged on the upper part of the upper shell and is adapted to the air outlet. The exhaust wheel is rotatably arranged in the exhaust cavity. The exhaust motor is arranged on the upper part of the exhaust cavity and is used to drive the exhaust wheel to rotate and discharge the steam after water vapor separation through the exhaust port arranged on the exhaust cavity.

[0050] The system also includes a pressure sensor 9, located on the sidewall of the exhaust chamber and below the exhaust turbine. The exhaust motor can be a variable frequency motor. The pressure sensor detects negative pressure and adjusts the exhaust motor frequency to balance the positive and negative pressure differentials between the spokes below the separator cylinder and the exhaust unit, ensuring efficient steam discharge.

[0051] The condensed water formed on the top of the upper shell is prevented from entering the exhaust unit from the outer edge of the steam inlet hood due to the combined effect of the trumpet-shaped structure of the steam inlet hood and the separation flange 3.1 located on the top of the separation cylinder.

[0052] The bottom of the separation cylinder has a large diameter and is provided with a separation flange 3.1. The sealing device 2 forms a circular water retaining boss to prevent condensed water from entering the interior of the separation cylinder from the bottom.

[0053] The centrifugal separator 100 is provided with a safety valve 14 to prevent abnormal overpressure of the internal pressure, and is provided with a liquid level detector 15 to detect the liquid level to prevent separation failure caused by excessive internal condensed water.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sealing transmission device for a centrifugal separator, characterized in that: include: A sealing device and a coupling center axis unit, wherein the rotating seal of the coupling center axis unit passes through the lower part of the shell, the lower part of the coupling center axis unit is fixedly connected to the main motor, the coupling center axis unit is arranged in the sealing device, and the top of the coupling center axis unit is fixedly connected to the lower part of the separation barrel main shaft; the sealing device is used to isolate and seal the coupling center axis unit.

2. A sealing transmission device for a centrifugal separator according to claim 1, characterized in that: The sealing device includes a sealing device body and a sealing cover. The sealing device body is sealed and connected to the bottom of the shell. An installation cavity is provided in the sealing device body. The coupling center axis unit is arranged in the installation cavity. The sealing cover is installed on the sealing device body to isolate and seal the coupling center axis unit.

3. A sealing transmission device for a centrifugal separator according to claim 2, characterized in that: The coupling center shaft unit includes a coupling center shaft and a main transmission bearing. The lower diameter of the mounting cavity is larger than the upper diameter of the mounting cavity. Main transmission bearings are installed at the lower part, the middle part and the upper part of the mounting cavity. The coupling center shaft is rotatably connected relative to the sealing device body through the main transmission bearings arranged at the lower part, the middle part and the upper part of the mounting cavity; the upper seal of the coupling center shaft passes through the sealing cover and is connected to the main shaft of the separation cylinder; the lower part of the coupling center shaft is connected to the main motor.

4. A sealing transmission device for a centrifugal separator according to claim 2, characterized in that: The central axis of the coupling is connected to the bottom wall of the shell in a rotating and sealing manner via a sealing ring; the main body of the sealing device is connected to the bottom of the shell in a sealing manner via a sealing ring, the sealing cover is connected to the main body of the sealing device in a sealing manner via a sealing ring, and the sealing cover is connected to the central axis of the coupling in a rotating and sealing manner via a sealing ring.

5. The sealing transmission device for a centrifugal separator according to claim 2, characterized in that: The lower diameter of the sealing device body is larger than the upper diameter.

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