Bus type integrated binary balancer

Abstract

The utility model relates to the technical field of negative pressure dilute phase gas-solid two-phase flow conveying, in particular to a bus type integrated binary balancer, which comprises a silencing structure and an air volume adjusting structure arranged below the silencing structure, and is characterized in that the silencing structure comprises a silencer, a sound absorption flow guide body and a bent plate silencing air distributor, the sound absorption flow guide body is arranged at the outlet end of the silencer, the bent plate silencing air distributor is arranged at the lower end of the sound absorption flow guide body, and the bent plate silencing air distributor is in butt joint with an outlet of the silencer. The air volume adjusting structure comprises a fixed cylinder, a sliding cylinder and a spiral damper, the sliding cylinder is slidably connected with one end of the fixed cylinder in a sleeved mode, and the spiral damper is arranged in the fixed cylinder and the sliding cylinder. When any branch pipe suddenly intercepts randomly, the flow state balance in an air conveying pipeline system can be effectively and accurately controlled by replacing the load, the tobacco shred breakage rate and the loose end rate are effectively reduced, and the contribution to quality improvement, efficiency improvement, energy conservation and emission reduction is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to negative pressure rare gas solid two -phase flow conveying technical field, concretely is bus type integration binary balancer. BACKGROUND

[0002] The wind force sends silk belongs to typical negative pressure rare gas solid two -phase flow conveying application, and its main technical principle is that the high -speed rotating fan produces the movement airflow with certain wind pressure, wind volume, inhales from the silk sending machine and drives the cut tobacco to move to the silk hopper along the set closed pipeline and settles down, and the dust -laden gas is discharged after being purified through the dust remover. Because the wind force sends silk has the advantages such as rapid silk sending, convenient control, easy combination, wide condition, has become the mainstream silk supply mode of modern cigarette production.

[0003] In view of the fact that the cigarette production silk supply is a short-time, intermittent, random supply process, there is the working condition of random sudden flow interception of any branch pipe, which leads to serious instability of system flow state, violent flow velocity fluctuation, and problems such as increased finished cut tobacco crushing, reduced aroma and moisture, and increased cigarette empty head rate, which damages the quality of cigarette products, and even the pipe for sending cut tobacco can be blocked, which forces the production to be interrupted. This is a common difficult problem in the cigarette industry.

[0004] In view of the above-mentioned common difficult problem of wind force silk sending in the cigarette industry, the invention patent “Binary equivalent replacement constant-speed pneumatic conveying method” (patent authorization number: CN200710066250.5) authorized by the inventor effectively solves the above-mentioned common difficult problem and achieves good results. After more than ten years of successful application, as the key equipment for implementing the above-mentioned invention patent, the binary balancer has not changed its core principle and application scope, but its structure and function are constantly improving, and the product is also constantly iterating. The development process of the binary balancer is as follows:

[0005] The utility model patent “Air volume and wind pressure binary balancer” (patent authorization number: CN200720105043.1) is the first generation product of the binary balancer; the binary balancer with active variable lead is the second generation iterative product; the utility model patent “Integrated binary balancer” (patent authorization number: CN201822000780.6) is the third generation iterative product; in order to adapt to the development demand of intelligent manufacturing, the utility model is upgraded and modified on the basis of the above-mentioned patent technology, and an intelligent bus type integrated binary balancer is proposed. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a bus type integrated binary balancer, which can effectively solve the problems proposed in the above background technology.

[0007] The intelligent bus type integrated binary balancer introduces field bus technology in the field of industrial automation, and can be constructed as a node of a distributed control system.

[0008] To solve the above problems, the technical scheme adopted by the utility model is: a bus type integrated binary balancer, which comprises a sound-absorbing structure and a wind volume adjusting structure, wherein the wind volume adjusting structure is arranged below the sound-absorbing structure, and the sound-absorbing structure comprises a sound absorber, a sound-absorbing flow guide and a curved plate sound-absorbing air distributor, the sound-absorbing flow guide is arranged at the outlet end of the sound absorber, the curved plate sound-absorbing air distributor is arranged at the lower end of the sound-absorbing flow guide, and the curved plate sound-absorbing air distributor is connected with the outlet of the sound absorber; the wind volume adjusting structure comprises a fixed cylinder, a sliding cylinder and a spiral damper, the sliding cylinder is slidably connected with one end of the fixed cylinder, and the spiral damper is arranged in the fixed cylinder and the sliding cylinder.

[0009] Preferably, the number of sound absorbers is 2, and the two sound absorbers are arranged at two ends of the balancer respectively, and the sound-absorbing flow guide is arranged between the two sound absorbers.

[0010] Preferably, the inlet end of the sound absorber is provided with a protective net.

[0011] Preferably, the side surface of the balancer is respectively provided with a touch screen and an access door.

[0012] Preferably, one end of the fixed cylinder is provided with a region partition plate.

[0013] Preferably, the balancer is provided with two isolated RS485 communication interfaces, one of which is used for communication with an upper computer, and the other is used for cascading surrounding integrated binary balancers; the balancer adopts a master-slave half-duplex communication mode, and the communication protocol adopts a standard Modbus RTU protocol.

[0014] Preferably, the balancer is connected with a distributed I / O or a man-machine interface through an RS485 field bus, the distributed I / O is connected with an engineer station and a master station through an optical fiber ring network and performs data interaction; the upper data monitoring or the man-machine interface performs remote query and command issuing on data information through an industrial Ethernet.

[0015] Preferably, the master control of the RS485 communication interface circuit adopts an embedded controller STM32F407, the controller STM32F407 is connected with an isolated RS485 communication interface SP485E interface chip through two built-in UARTs, so as to realize conversion of data information in a TTL level form into data information in an RS485 level form.

[0016] In order to achieve the above object, the utility model takes the improvement technical scheme for

[0017] 1. A kind of intelligent bus type integrated binary balancer on the basis of original integrated binary balancer, air flow organization and noise elimination structure are optimized, the following technical improvements are proposed to promote:

[0018] The working load of cigarette filament feeding and the simulated replacement load generated by binary balancer are mutually opened and closed interlocking relationship, when simulated replacement load is generated, system external air will flow into binary balancer quickly.It is known that flow rate is proportional to noise, flow rate is inversely proportional to through-flow area, therefore, the effective through-flow area of the air inlet at both ends of binary balancer is increased to reduce the air inlet noise.The sound absorber at both ends of intelligent bus type integrated binary balancer is connected as a whole, and sound-absorbing guide plate is arranged in the middle, which guides air flow and absorbs and reduces turbulent vortex noise to reduce air flow noise;And curved plate sound-absorbing flow distribution plate is arranged at the same outlet of sound absorber, which has two functions: one is to arrange the flow state of air flow out of sound absorber, further reduce turbulent vortex noise of air flow and uniformly supply air;The second is to form a sound barrier by using curved plate structure + high-speed air beam downward to constrain and block the diffusion of high-frequency noise generated by the spiral damper below due to high-speed air suction.

[0019] 2. A kind of intelligent bus type integrated binary balancer is proposed to improve the following technical improvements to solve the problem of unreasonable internal space area division of original integrated binary balancer in application and implementation process:

[0020] The original integrated binary balancer inlet is not divided, and under the long-time scouring of high flow rate, high negative pressure and non-clean gas, the electrical components, devices and cables in the equipment will be damaged, causing equipment failure.Based on the original mechanical structure, the innovative structure of the utility model is: canceling the photoelectric proximity switch arranged at the starting and ending ends of the sliding cylinder, using motor built-in absolute encoder and other methods to ensure the safe movement of the sliding cylinder;All electrical components (including strong and weak current) and cables are effectively separated from air flow, which ensures the safety of electrical components and facilitates inspection and maintenance.

[0021] 3. A kind of intelligent bus type integrated binary balancer is proposed to optimize the fixed pitch of the spiral damper of the original integrated binary balancer, and the following technical improvements are proposed to promote:

[0022] Spiral damper is the core component of binary balancer, and its calculation and production are very important, for different working loads, binary balancer must be able to generate corresponding simulated replacement load.In the process of changing the flow of fluid through spiral damper by horizontal sliding mode, the spiral damper composed of non-equal diameter and different pitch can meet the needs of different simulated replacement load.

[0023] 4. The intelligent bus type integrated binary balancer optimizes the pulse drive mode of the original integrated binary balancer, and the following technical improvements are proposed:

[0024] The core technical feature of the intelligent bus type integrated binary balancer is drive control integration, which can realize the positioning, zero return, limiting, emergency stop, inching and other functions of the binary balancer through bus mode, which is beneficial to saving pulse resources in distributed systems. The intelligent bus type integrated binary balancer can be configured with not less than 16 positioning paths, and supports the break and overlap control of the positioning path, and can respond to a new positioning path while maintaining the current speed.

[0025] The intelligent bus type integrated binary balancer supports PLC, distributed I / O, touch screen and other control methods, can set parameters and monitor states, supports rich diagnostic functions, and has function expansion, can realize the limiting and motion range limiting function through software and hardware, and effectively protects the mechanical motion stroke of the binary balancer.

[0026] 5. The intelligent bus type integrated binary balancer optimizes the interface of the original integrated binary balancer, and the following technical improvements are proposed:

[0027] The intelligent bus type integrated binary balancer has a 2-way isolated RS485 communication interface, one of which is used for communication with the upper computer, and the other can be used for cascading surrounding integrated binary balancers. The intelligent bus type integrated binary balancer adopts a master-slave half-duplex communication mode, and the communication protocol adopts a standard Modbus RTU protocol, allowing up to 31 intelligent bus type integrated binary balancers to be controlled simultaneously.

[0028] Through the above-mentioned five aspects of technical improvement and promotion, the intelligent bus type integrated binary balancer has the following beneficial effects: The intelligent bus type integrated binary balancer adopts a drive control integrated mode, can realize the positioning, zero return, limiting, emergency stop, inching and other functions of the binary balancer through bus mode, and meets the development trend of modern cigarette production intelligence and industrial internet.

[0029] Compared with the prior art, the bus type integrated binary balancer has the following beneficial effects:

[0030] When any branch pipe is randomly and suddenly cut off, the utility model can effectively and accurately control the flow state balance in the air supply pipeline system through the replacement load, effectively reduces the tobacco crushing rate and the empty head rate, and contributes to quality improvement, efficiency increase and energy saving and emission reduction. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1It is a sectional view of the utility model structure.

[0032] Figure 2 It is an explosion structure schematic view of the utility model.

[0033] Figure 3 It is a structure schematic view of the utility model.

[0034] Figure 4 It is a structure schematic view of the utility model.

[0035] Figure 5 It is a field bus network topology structure diagram of the utility model.

[0036] Figure 6 It is a RS485 communication interface circuit diagram of the utility model.

[0037] Figure 7 It is a man-machine interface schematic view of the utility model.

[0038] Wherein: 1, muffler, 2, sound-absorbing flow guide, 3, curved plate sound-absorbing cloth wind device, 4, fixed cylinder, 5, sliding cylinder, 6, spiral damper, 7, protective net, 8, touch screen, 9, access door, 10, area partition. Specific implementation

[0039] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0040] Reference Figures 1-7 The utility model provides bus type integrated binary balance ware, including sound-absorbing structure and air volume regulation structure, air volume regulation structure is located at the below of sound-absorbing structure, its characterized in that, sound-absorbing structure includes muffler 1, sound-absorbing flow guide 2 and curved plate sound-absorbing cloth wind device 3, sound-absorbing flow guide 2 is located at the export end of muffler 1, curved plate sound-absorbing cloth wind device 3 is located at the lower end of sound-absorbing flow guide 2, and curved plate sound-absorbing cloth wind device 3 is butt jointed with the export of muffler 1, air volume regulation structure includes fixed cylinder 4, sliding cylinder 5 and spiral damper 6, sliding cylinder 5 is slidably connected with one end of fixed cylinder 4, spiral damper 6 is located in fixed cylinder 4 and sliding cylinder 5.

[0041] Preferably, the number of mufflers 1 is 2, and the two mufflers 1 are respectively arranged at two ends of the balance ware.

[0042] Preferably, the inlet end of the muffler 1 is provided with a protective net 7.

[0043] Preferably, the side surface of the balance ware is respectively provided with a touch screen 8 and an access door 9.

[0044] Preferably, one end of the fixed cylinder 4 is provided with a region partition plate 10.

[0045] Preferably, the balancer is provided with two isolated RS485 communication interfaces, one of which communicates with the upper computer, and the other is used for cascading surrounding integrated binary balancers; the balancer adopts a master-slave half-duplex communication mode, and a standard Modbus RTU protocol is used as the communication protocol.

[0046] Preferably, the balancer is connected with distributed I / O or human-computer interface through RS485 field bus, the distributed I / O is connected with an engineer station and a master station through a fiber ring network and performs data interaction, and the upper data monitoring or human-computer interface performs remote query and command issuing on data information through industrial Ethernet.

[0047] Preferably, the master control of the RS485 communication interface circuit adopts an embedded controller STM32F407, the controller STM32F407 is connected with an interface chip SP485E with an isolated RS485 communication interface through two built-in UARTs, and conversion from TTL level data information to RS485 level data information is realized.

[0048] Wherein, the integrated binary balancer or the binary balancer (referred to as the balancer), the human-computer interface (referred to as HMI), the industrial Ethernet (referred to as Ethernet), the master station (referred to as PLC), and the muffler 1 are integrated impedance composite mufflers.

[0049] As a specific embodiment of the utility model:

[0050] As shown in Figures 2-4 The balancer structure is formed by bending high-strength stainless steel plates, has strong mechanical strength and stability, and the middle position of the side panel is embedded with a touch screen 8 capable of human-computer interaction, which can be used for on-site debugging operation of the intelligent bus type integrated binary balancer, and also can be used for observing the current state information of the intelligent bus type integrated binary balancer; the protective net 7 can effectively filter the impact of tobacco residue in the wind power conveying process on the electric control device of the bus type integrated binary balancer.

[0051] As shown in Figure 1 The dust-containing gas in the wind power conveying process passes through the muffling structure inside the balancer, reduces the noise generated by the fluid flow in the pipeline, and the muffling structure is composed of an integrated impedance composite muffler, a sound-absorbing flow guide 2 and a curved plate muffling air distributor 3.

[0052] The integrated impedance composite muffler adopts a composite mode of a resistive muffler, a resistive muffler and a micro-perforated plate muffler to reduce noise. The resistive muffler can effectively reduce the medium and high frequency components of noise by absorbing noise through sound-absorbing materials such as sound-absorbing cotton; the resistive muffler can effectively reduce the low frequency components of noise by making noise reflect and interfere through the geometric shape change of the pipeline through the sound-absorbing flow guide body 2; when the noise sound wave passes through the micro-perforated metal plate, the micro-perforated plate drives the air in the hole to vibrate, thereby consuming sound energy.

[0053] The curved plate muffling air distributor 3 adopts a static pressure tank structure design, the inner wall of the tank is coated with sound-absorbing material, and through the special design of the structure and the material, the airflow can be evenly distributed while effectively reducing noise, improving the comprehensive performance of the ventilation system.

[0054] The access door 9 is used for daily maintenance and repair of the electrical control circuit of the balancer; the area partition plate 10 effectively separates the electrical control area and the air volume balance adjustment structure, ensuring that the electrical circuit and device are not affected by the fluid. The air volume balance adjustment structure is composed of a spiral damper 6, a sliding cylinder 5 and a fixed cylinder 4. The core component is the spiral damper 6 with variable inner diameter, which can adjust the resistance of fluid flow by changing the size of the internal structure. The balancer is provided with an electric screw rod, the spiral damper 6 is connected with the electric screw rod and moves forward and backward with the electric screw rod during work. The sliding cylinder 5 is driven by a servo motor to move between the fixed cylinder 4 to form different openings, thereby effectively adjusting the air volume.

[0055] As shown in Figure 5 , it can be seen from the figure that the binary balancer is connected with a distributed I / O or a human-machine interface (HMI) through an RS485 field bus. The distributed I / O can be connected with an engineer station and a master station (PLC) through an optical fiber ring network and can exchange data. The upper data monitoring or human-machine interface can remotely query data information and issue commands through an industrial Ethernet (Ethernet).

[0056] As shown in Figure 6 , the main control of the RS485 communication interface circuit adopts an embedded controller STM32F407. The controller is connected with an isolation type RS485 communication interface SP485E interface chip through two built-in UARTs, and can realize the conversion of data information in TTL level form to data information in RS485 level form. One of the RS485 communication interfaces is used for communication with the upper computer, and the other RS485 communication interface can be used for cascading surrounding integrated binary balancers. The intelligent bus type integrated binary balancer adopts a master-slave half-duplex communication mode, and the communication protocol adopts a standard Modbus RTU protocol, allowing up to 31 intelligent bus type integrated binary balancers to be mounted on the bus at the same time to realize control.

[0057] As Figure 7 shown, it can be seen from the figure that the human-computer interaction interface covers the opening, voltage, current and setting of the intelligent bus integrated binary balancer. Among them, the opening and current are the most important parameters of the intelligent bus integrated binary balancer, the opening human-computer interaction interface takes the real-time value and historical value of the opening as the observation object, which can intuitively and conveniently understand the displacement of the sliding cylinder 5 of the current intelligent bus integrated binary balancer, and can also represent the replacement load air volume to a certain extent. At the same time, the opening value can also effectively represent the limit position of the intelligent bus integrated binary balancer. If the opening exceeds the maximum and minimum threshold, the opening human-computer interaction interface will record the limit position at the current time and send a stop signal to the servo motor, so as to ensure that the intelligent bus integrated binary balancer will not be damaged. The current human-computer interaction interface takes the real-time value and historical value of the current as the observation object, which can intuitively and conveniently understand the torque output of the servo motor of the current intelligent bus integrated binary balancer, and if the servo motor appears to be blocked, the current human-computer interaction interface will record the current time and send a stop signal to the servo motor, so as to ensure that the intelligent bus integrated binary balancer will not be damaged.

[0058] The above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A bus-type integrated binary balancer, comprising a silencer structure and an air volume adjustment structure, wherein the air volume adjustment structure is arranged below the silencer structure, and is characterized in that: The muffler structure comprises a muffler (1), a sound-absorbing guide body (2) and a curved plate muffler air distributor (3), wherein the sound-absorbing guide body (2) is arranged at the outlet end of the muffler (1), the curved plate muffler air distributor (3) is arranged at the lower end of the sound-absorbing guide body (2), and the curved plate muffler air distributor (3) is docked with the outlet of the muffler (1); the air volume adjustment structure comprises a fixed cylinder (4), a sliding cylinder (5) and a spiral damper (6), wherein the sliding cylinder (5) is slidably sleeved with one end of the fixed cylinder (4), and the spiral damper (6) is arranged in the fixed cylinder (4) and the sliding cylinder (5).

2. The bus-type integrated binary balancer according to claim 1, characterized in that: The number of the mufflers (1) is two, and the two mufflers (1) are respectively arranged at both ends of the balancer, and the sound-absorbing and guiding body (2) is arranged between the two mufflers (1).

3. The bus-type integrated binary balancer according to claim 2, characterized in that: The inlet end of the muffler (1) is provided with a protective net (7).

4. The bus-type integrated binary balancer according to claim 1, characterized in that: A touch screen (8) and an inspection door (9) are respectively provided on the sides of the balancer.

5. The bus-type integrated binary balancer according to claim 1, characterized in that: One end of the fixed cylinder (4) is provided with a regional partition (10).

6. The bus-type integrated binary balancer according to claim 1, characterized in that: The balancer is provided with two isolated RS485 communication interfaces, one of which communicates with the host computer, and the other is used to cascade the surrounding integrated binary balancers; the balancer adopts a master-slave half-duplex communication mode, and the communication protocol adopts the standard Modbus RTU protocol.

7. The bus-type integrated binary balancer according to claim 6, characterized in that: The balancer is connected to the distributed I / O or human-machine interface via the RS485 field bus, and the distributed I / O is connected to the engineer station and the master station via the optical fiber ring network for data exchange; the upper data monitoring or human-machine interface remotely queries the data information and issues commands via the industrial Ethernet.

8. The bus-type integrated binary balancer according to claim 7, characterized in that: The main control of the RS485 communication interface circuit adopts the embedded controller STM32F407. The controller STM32F407 is connected to the SP485E interface chip with an isolated RS485 communication interface through two built-in UARTs to realize the conversion of data information in the form of TTL level to data information in the form of RS485 level.

Images