Industrial smoke purification equipment

Abstract

The utility model provides industrial smoke filtering equipment which comprises a body, an air inlet pipe, a filter element bin, a filter element, a fan bin, a fan, an air outlet pipe, an air quantity flow stabilizing module and a screen display unit, the air quantity flow stabilizing module comprises an air inlet pressure sensor, a flow stabilizing controller and a fan PWM (Pulse Width Modulation) controller, and the air inlet pressure sensor is used for monitoring air inlet pressure in real time; the fan PWM controller is used for obtaining and adjusting the rotating speed of the fan, the steady flow controller is connected with the air inlet pressure sensor and the fan PWM controller, the air inlet amount is calculated according to the air inlet pressure, a signal for adjusting the rotating speed of the fan is sent to the fan PWM controller when the air inlet amount does not reach the preset air inlet amount, and when it is monitored that the rotating speed of the fan exceeds the maximum rotating speed, the fan is started to rotate. When the real-time air inlet amount still cannot meet the target air inlet amount, the fan rotating speed and the alarm information are sent to the screen display unit, the technical effect of being more beneficial to normal operation of preorder equipment is achieved by providing the stable and continuous air inlet amount, and the reliability, the safety and the stability of operation of the whole machine are improved.

Description

Technical Field

[0001] The utility model relates to the field of industrial smoke purification and environmental protection, in particular to industrial smoke purification equipment. Background Art

[0002] The waste gas generated by industrial equipment contains a large amount of harmful impurities such as dust, particles, colloidal particles, smoke, etc. In order to protect the environment and avoid air pollution, smoke purification equipment is often installed before industrial gas emissions in production to ensure that the gas discharged into the atmosphere meets the emission standards.

[0003] Smoke purification equipment is usually equipped with pressure and dust concentration sensors to monitor the equipment's operating status in real time. However, each module of conventional industrial smoke purification equipment works independently, and the alarm status is directly judged based on pressure or dust concentration. There are fewer factors to consider, the judgment logic is simple and direct, and the conclusion is not rigorous enough, which reduces the controllability and safety of the equipment, reduces the equipment's performance, or causes the filter element to be not fully utilized. Summary of the Invention

[0004] The utility model provides an industrial smoke purification device, comprising: a main body, an air inlet pipe, a filter cartridge compartment, a fan compartment, an air outlet pipe, and an air volume flow stabilization module. A filter cartridge is arranged in the filter cartridge compartment, and a fan is arranged in the fan compartment. The air inlet pipe, the filter cartridge compartment, the fan compartment, and the air outlet pipe are connected in sequence to form a communicating cavity inside. The air volume flow stabilization module is used to maintain the stability of the air intake when the industrial smoke purification equipment is in operation, and to process industrial smoke at a relatively uniform speed. The air volume flow stabilization module includes an air intake pressure sensor, a flow stabilization controller, and a fan PWM controller, wherein the air intake pressure sensor is arranged at the air intake pipe in the cavity or at the air intake side of the filter cartridge in the filter cartridge compartment, and is used to monitor the air intake pressure in real time. The fan PWM controller is used to obtain and adjust the speed of the fan. The flow stabilization controller is respectively connected to the air intake pressure sensor and the fan PWM controller, and is used to calculate the air intake volume according to the air intake pressure, and to send a signal to the fan PWM controller to adjust the fan speed when the air intake volume does not reach the preset air intake volume.

[0005] Based on the smoke emission rate of the upstream equipment of the industrial smoke purification equipment, a constant target air volume P is preset. set The flow controller converts the inlet pressure obtained from the inlet pressure sensor into real-time inlet volume using the following formula:

[0006]

[0007] Among them, L t is the real-time air intake volume, P t is the air inlet pressure, L0 is the rated air inlet volume, and P0 is the rated air inlet pressure;

[0008] Comparative air intake volume L tAnd target air intake L set , determine the air intake state:

[0009] If L t = L set , the air intake is appropriate, and the air volume stabilizing module continues to maintain the air intake at this time;

[0010] If L t > L set , the air intake is too large, and the stabilizing controller sends a signal to the fan PWM controller to reduce the fan speed, and the fan PWM controller controls the fan to operate at a reduced speed;

[0011] If L t < L set , the air intake is insufficient, and the stabilizing controller sends a signal to the fan PWM controller to increase the fan speed, and the fan PWM controller controls the fan to operate at an increased speed;

[0012] Through the operation of the air volume stabilizing module, the air intake of the industrial smoke purification equipment reaches the predetermined value and is maintained stable.

[0013] The target air intake P set , the rated air intake L0, the rated air intake pressure P0 and other data used in the above operation process are stored in the stabilizing controller.

[0014] The filter core is a core component of the industrial smoke purification equipment and is a consumable component. In order to monitor the availability of the filter core and replace the excessively clogged filter core in time, the utility model also has a wind resistance monitoring function. When the wind resistance is too large, it indicates that the filter core has been seriously clogged, prompting the user to maintain.

[0015] Therefore, the utility model discloses an industrial smoke purification equipment also includes a screen display unit, and the screen display unit is arranged on the outer wall of the body and is connected with the stabilizing controller. The fan speed of the fan PWM controller of the air volume stabilizing module is reported to the stabilizing controller, and when the fan speed monitored by the stabilizing controller exceeds the rated maximum speed of the fan, the real-time air intake still cannot meet the target air intake, which indicates that the filter core is clogged and causes the wind resistance to be too large, and the air flow rate cannot meet the requirements, so that it is determined that the overload state is entered, and the fan speed and alarm information are sent to the screen display unit, and the screen display unit displays the fan speed and alarm information in the form of warning.

[0016] Furthermore, to extend the life of the filter element, a pre-filtration compartment is installed between the air inlet duct and the filter element compartment. This compartment houses a pre-filter. The pre-filter's filtration accuracy is lower than that of the filter element. Typically, the filter element has a filtration accuracy of 200-2000 mesh (pore size 8-83 microns), which can filter tiny particles, aerogels, and large organic molecules. The pre-filter has a filtration accuracy of 20-200 mesh (pore size 83-830 microns), which only filters large dust particles. Industrial waste entering through the air inlet duct first passes through the pre-filter before entering the filter element compartment, effectively extending the filter element's lifespan.

[0017] Furthermore, a temperature sensor is provided in the filter element compartment. When the preceding equipment generates spark residues and the filter element is not resistant to high temperatures, the screen display unit displays an over-temperature alarm message in a warning manner.

[0018] Furthermore, a dust concentration sensor and a VOC concentration sensor are installed in the fan compartment. The gas in the fan compartment is air filtered by the filter element and discharged directly into the atmosphere. Therefore, when the concentration sensor and the VOC concentration sensor detect that the air quality exceeds the standard, it means that the filtering effect of the filter element has deteriorated and maintenance is required. The screen display unit displays the over-temperature alarm information in a warning manner.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. Unlike conventional purifiers that use wind speed as a set value, this utility model provides a stable and continuous air intake, achieving a technical effect that is more conducive to the normal operation of the preceding equipment.

[0021] 2. When the filter element has an abnormality, the operator will be notified through the screen display in time, and the control process is automated.

[0022] 3. The technical solution of the utility model has high perfection and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0026] Figure 3This is a system structure diagram of the air volume stabilizing module of the present utility model.

[0027] The parts shown are:

[0028] 1. Main body; 2. Air inlet pipe; 3. Pre-filter compartment; 4. Pre-filter; 5. Filter element compartment; 6. Air inlet pressure sensor; 7. Temperature sensor; 8. Filter element; 9. Fan compartment; 10. Fan; 11. Air outlet pipe; 12. Screen display unit; 13. Air volume flow stabilization module; 14. Flow stabilization controller; 15. Fan PWM controller. DETAILED DESCRIPTION

[0029] In order to make the above and other features and advantages of the present invention more clear, the present invention is further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are only exemplary and not restrictive.

[0030] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element. The terms "side", "front", "rear", "upper", "lower" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] like Figure 1 The utility model provides an industrial smoke purification device, the outer shape of which includes a main body 1, an air inlet pipe 2 is arranged on the side of the main body 1, a screen display unit 12 is arranged in the front, and an air outlet pipe 11 is arranged in the rear.

[0032] The internal structure of the body 1 refers to Figure 2 From bottom to top, the following are the pre-filter compartment 3, the filter cartridge compartment 5, and the fan compartment 9. The pre-filter compartment 3 houses a pre-filter 4, the filter cartridge compartment 5 houses a filter cartridge 8, and below the filter cartridge are an inlet pressure sensor 6 and a temperature sensor 7. A fan 10 is housed in the fan compartment 9. The inlet pipe 2, pre-filter compartment 3, filter cartridge compartment 5, fan compartment 9, and outlet pipe 11 are sequentially connected, forming a interconnected chamber within which the industrial gas undergoes a filtration process: driven by the force of fan 10, the industrial gas laden with smoke particles is drawn in through the inlet pipe 2, enters the pre-filter compartment 3, is pre-filtered by the pre-filter 4, and then enters the filter compartment 5. After being filtered by the filter cartridge 8, it becomes clean air, enters the fan compartment 9, passes through the fan 10, and is discharged through the outlet pipe 11.

[0033] like Figure 3, the industrial smoke purification device further comprises a wind volume stabilizing module 13. An air inlet pressure sensor 6 is arranged below the filter core 8, and a stabilizing controller and a fan PWM controller are arranged in the fan bin 8. The wind volume stabilizing module 13 comprises the air inlet pressure sensor 6, the stabilizing controller 14 and the fan PWM controller 15. The stabilizing controller 14 is connected with the air inlet pressure sensor 6 and the fan PWM controller 15 respectively, and is used for calculating, receiving, storing data and signals. The stabilizing controller 14 stores a target air inlet volume P set , a rated air inlet volume L0 and a rated air inlet pressure P0. The stabilizing controller 14 obtains the air inlet pressure P t from the air inlet pressure sensor 6, and obtains a real-time air inlet volume L t by calculation. The stabilizing controller 14 compares the air inlet volume L t with the target air inlet volume L set , and judges the air inlet volume state. If L t >L set , the air inlet volume is too large, the speed of the fan 10 is reduced by sending a signal to the fan PWM controller 15 to reduce the speed of the fan 10, so as to reduce the air inlet volume. If L t =L set , the air inlet volume is appropriate. If L t <L set , the air inlet volume is insufficient, the speed of the fan 10 is increased by sending a signal to the fan PWM controller 15 to increase the speed of the fan 10, so as to increase the air inlet volume. If the fan 10 reaches the maximum speed and still cannot meet the requirement of the air inlet volume, it is judged that the filter core 8 is blocked, the air resistance is too large, and the air flow cannot meet the requirement, so an overload state is determined, the speed of the fan and alarm information are sent to the screen display unit 12, and the screen display unit 12 displays the speed of the fan and the alarm information in a warning manner.

[0034] Further, a temperature sensor 7 is arranged below the filter core 8. When the industrial gas entering the filter core bin 5 contains sparks and the filter core 8 is not resistant to high temperature, the screen display unit 12 displays over-temperature alarm information in a warning manner.

[0035] Further, a dust concentration sensor and a VOC concentration sensor are arranged in the fan bin 9. When the air quality after being filtered by the filter core 8 is monitored to be over standard, it indicates that the filtering effect of the filter core is poor, and the screen display unit 12 displays over-temperature alarm information in a warning manner.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An industrial smoke purification equipment, characterized in that, include: Main body, air inlet pipe, filter element compartment, fan compartment, air outlet pipe, air volume steady flow module; The air inlet pipe, filter element compartment, fan compartment, and air outlet pipe are connected in sequence to form a communicating cavity inside; A filter element is arranged in the filter element compartment; A fan is arranged in the fan compartment; The air volume stabilizing module is used to maintain the stability of the air volume during operation.

2. The industrial smoke purification equipment according to claim 1, characterized in that: The air flow stabilization module includes an air inlet pressure sensor, a flow stabilization controller, and a fan PWM controller; The flow stabilization controller is connected to the air inlet pressure sensor and the fan PWM controller respectively, and is used for calculating, receiving, transmitting and storing data and signals; The air inlet pressure sensor is arranged at the air inlet pipe in the cavity or at the air inlet side of the filter element in the filter element compartment, and is used to monitor the air inlet pressure in real time; The fan PWM controller is used to obtain and adjust the rotation speed of the fan.

3. The industrial smoke purification equipment according to claim 1, characterized in that: It also includes a screen display unit, which is connected to the flow stabilization controller and is used to display the alarm information sent by the air volume flow stabilization module.

4. The industrial smoke purification equipment according to claim 1, characterized in that: A pre-filter compartment is further provided between the air inlet pipe and the filter element compartment, and a pre-filter is provided in the pre-filter compartment.

5. The industrial smoke purification equipment according to claim 3, characterized in that: The filtering accuracy of the pre-filter is greater than the filtering accuracy of the filter element.

6. The industrial smoke purification equipment according to claim 1, characterized in that: A temperature sensor is arranged in the filter element compartment.

7. The industrial smoke purification equipment according to claim 1, characterized in that: A dust concentration sensor and a VOC concentration sensor are arranged in the fan compartment.

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