Filter element off-line energy-saving regeneration device

By designing a miniaturized offline filter regeneration device and adopting automated control of compressed air and heating components, the problems of bulky and dangerous existing filter regeneration equipment have been solved, achieving efficient and safe filter regeneration and heat recovery.

CN224358149UActive Publication Date: 2026-06-16SHANXI XINHUA CHEM

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI XINHUA CHEM
Filing Date
2025-06-30
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing filter cartridge regeneration equipment is bulky, complex to operate, highly dangerous, consumes a lot of energy, and cannot achieve flexible emergency regeneration, posing a risk of secondary pollution.

Method used

An offline energy-saving filter regeneration device was designed, which adopts a miniaturized regeneration chamber and has a gas mixing unit and a heating unit inside. It uses compressed air to provide the gas source and uses heating components and a control system to achieve automated regeneration. It integrates temperature and pressure sensors for real-time monitoring and control and supports local/remote operation.

🎯Benefits of technology

It enables unmanned and portable regeneration of filter cartridges, reduces energy consumption, improves regeneration efficiency and safety, and has the function of multi-stage heat energy recovery and utilization.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224358149U_ABST
    Figure CN224358149U_ABST
Patent Text Reader

Abstract

The utility model relates to filter core processing equipment technical field discloses a kind of filter core off-line energy-saving regeneration equipment, including the regeneration box body connected with filter core equipment both ends, regeneration box body is equipped with the intercommunication gas mixing unit and heating unit, the inlet of regeneration box body is accessed into regeneration gas pipe system through one interface in double-line gas inlet interface, another interface in double-line gas inlet interface is connected with air inlet source, double-line gas inlet interface is accessed into gas mixing unit inlet by oil-water separator being set in the front end of regeneration box body, gas mixing unit includes gas mixing chamber, gas mixing chamber is arranged in the front section of regeneration box body, the inlet of gas mixing chamber is equipped with filter assembly, the outlet of gas mixing chamber is equipped with one-way plug valve, one-way plug valve is connected with heating unit, heating unit includes the inner layer shell being set in regeneration box body, heat preservation layer is equipped between inner layer shell and regeneration box body, multiple groups of heating assembly are inserted in inner layer shell, temperature sensor is equipped in inner layer shell near heating unit outlet one end.
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Description

Technical Field

[0001] This utility model relates to the technical field of filter element processing equipment, specifically to an offline energy-saving regeneration device for filter elements. Background Technology

[0002] Currently, the regeneration of fixed or mobile ceramic filter elements mostly employs fixed regeneration furnaces to control the temperature at around 700℃ for combustion regeneration. During use, the filter element must be removed from the test bench or equipment and placed in the regeneration furnace for high-temperature regeneration. The above-described regeneration method presents the following problems:

[0003] 1. The regeneration furnace is fixed and bulky, and adopts a centralized regeneration method, which cannot realize emergency regeneration of filter elements. At the same time, it has no heat recovery system, consumes a lot of energy, and cannot be carried.

[0004] 2. Filter cartridge regeneration requires removal from the equipment or test bench, causing secondary pollution;

[0005] 3. Traditional recycling methods require multiple skilled workers to work together, which is cumbersome and carries a high degree of danger. Utility Model Content

[0006] In order to solve a series of problems in existing regeneration equipment, such as being bulky and fixed, relying on disassembly, and being complex and dangerous to operate, resulting in low regeneration efficiency, poor flexibility, pollution risk and high energy consumption, this utility model provides an offline energy-saving regeneration device for filter elements.

[0007] This utility model is achieved using the following technical solution:

[0008] An offline energy-saving filter regeneration device includes a regeneration chamber connected to both ends of the filter device. The regeneration chamber contains a gas mixing unit and a heating unit. The inlet of the regeneration chamber is connected to a regeneration gas pipeline system via one of the two-line air inlet interfaces. An air source is connected to the other of the two-line air inlet interfaces. The two-line air inlet interfaces are connected to the inlet of the gas mixing unit via an oil-water separator located at the front end of the regeneration chamber. The gas mixing unit includes a gas mixing chamber located at the front of the regeneration chamber. A filter assembly is installed at the inlet of the gas mixing chamber, and a one-way valve is installed at the outlet of the gas mixing chamber. The one-way valve is connected to the heating unit. The heating unit includes an inner shell located within the regeneration chamber. An insulation layer is provided between the inner shell and the regeneration chamber. Multiple sets of heating components are inserted within the inner shell. A temperature sensor is located within the inner shell near the outlet of the heating unit.

[0009] During implementation, the system includes a regeneration chamber connected to both ends of the filter cartridge device. The regeneration chamber can be placed on a test bench for offline automatic regeneration of the filter cartridge device, achieving unmanned and miniaturized inlet operation. The top of the regeneration chamber is equipped with a handle, and the interior contains a connected gas mixing unit and a heating unit.

[0010] The regeneration chamber has an inlet and an outlet at each end. The inlet of the regeneration chamber is connected to the regeneration gas pipeline system through one of the interfaces of the dual-line air inlet interface. The other interface of the dual-line air inlet interface is connected to an air source, which uses compressed air to provide the air supply and airflow power. It uses a universal standard interface to connect to the dual-line air inlet interface. The dual-line air inlet interface is equipped with a valve that connects to the control system. The amount of exhaust gas entering the chamber is controlled by monitoring the pressure in the mixing chamber.

[0011] The dual-line air intake interface is connected to the inlet of the mixing unit via an oil-water separator located at the front end of the regeneration chamber. The oil-water separator is a standard component.

[0012] The gas mixing unit includes a mixing chamber located at the front of the regeneration chamber. A temperature sensor is inserted in front of the filter assembly within the mixing unit. This temperature sensor is connected to the control system, and the temperature of the mixing unit is displayed on a screen outside the regeneration chamber. A pressure transmitter is inserted inside the mixing chamber, also connected to the control system, transmitting real-time pressure values. A filter assembly, made of metal fiber felt (using existing technology), is installed at the inlet of the mixing chamber. This assembly is fixed to a filter frame, which is then clamped onto the inlet of the mixing chamber, enabling the filtration of high-temperature particulate matter or dust. A one-way valve is installed at the outlet of the mixing chamber. The one-way valve has perforated plates on both sides and is connected to a heating unit. The mixing unit and the heating unit are isolated by the one-way valve to ensure uniform gas distribution and prevent excessive local pressure or uneven gas mixing.

[0013] The heating unit includes an inner shell housed within the regeneration chamber. The inner shell is made of 316 stainless steel. An insulation layer is provided between the inner shell and the regeneration chamber to ensure the stability of the heat source temperature and reduce energy consumption. The insulation layer includes ceramic fiber insulation cotton filled between the inner shell and the regeneration chamber. Multiple heating components are inserted inside the inner shell to provide a heat source for the input air. The heating components include heating rods vertically inserted into the inner shell. The heating rods are connected to the control system for automatic temperature adjustment. A heating chamber is formed inside the inner shell and is connected to the outlet of the regeneration equipment. A temperature sensor is located near the outlet of the heating unit inside the inner shell. The temperature sensor is connected to the control system and the temperature of the heating unit is displayed on a display screen located outside the regeneration chamber. The outlet of the regeneration equipment is connected to the filter cartridge device via a quick-connect interface and a copper pipe.

[0014] The control system is integrated inside the regeneration chamber and supports both local and remote modes via an external control port. This port connects directly to the PLC, allowing the receiving of external start / stop commands or the output of equipment operating parameters to the central control system. Predefined parameters can also be input via the port. Temperature sensors at the front of the mixing unit and at the outlet of the heating unit are connected to the PLC's analog input terminals to monitor the airflow temperature in real time. Simultaneously, a pressure transmitter inside the mixing chamber is connected to the PLC to transmit pressure data. The PLC's output terminals drive the heating rods via relays and adjust the heating power. The PLC's communication port connects to an external digital display unit, displaying all operating parameters and dynamically showing temperature and pressure values.

[0015] During operation, compressed air and exhaust gas from the filter equipment enter the regeneration equipment through a dual-line air inlet. After passing through an oil-water separator and filter components to remove oil and dust, the gas is evenly mixed in the mixing chamber and, after pressure stabilization, enters the heating unit through a one-way valve. The heating components heat the exhaust gas to 240°C, causing it to react and decompose within the heating chamber. The treated exhaust gas then passes through the regeneration equipment outlet and enters the filter equipment to purge the filter elements. Part of the purged exhaust gas is discharged, while the remaining exhaust gas, retaining its heat, enters another filter equipment for purging. The exhaust gas operation is powered by compressed air.

[0016] Compared with the prior art, this application has the following advantages:

[0017] The present invention provides an offline energy-saving regeneration device for filter cartridges, which adopts an intelligent and portable design and can automatically regenerate filter cartridges offline, achieving unmanned and miniaturized operation.

[0018] This invention uses compressed air to provide the air source and airflow power, and adopts a universal standard interface to improve the versatility of the equipment.

[0019] This utility model uses electric heating to provide a heat source and is centrally controlled by a control system to treat black smoke from the exhaust gas of intermittent, low-temperature test bench engines.

[0020] This utility model adopts a multi-line air intake, which can use both compressed air and exhaust gas intake to achieve multi-stage heat energy recovery and utilization, thereby achieving the purpose of energy saving and consumption reduction. Attached Figure Description

[0021] Figure 1 This diagram shows the external structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0023] Figure 3 This diagram illustrates the use of this utility model.

[0024] Figure 4 This diagram shows the assembly of a one-way gate valve and a perforated plate.

[0025] In the diagram: 1. One-way gate valve; 2. Perforated plate; 3. Filter cartridge; 4. Mixing unit; 5. Heating unit; 6. Air inlet; 7. Dual-line air inlet; 8. Regeneration chamber; 9. Regeneration gas piping system; 10. Temperature sensor; 11. Oil-water separator; 12. Filter assembly; 13. Mixing chamber; 14. Heating assembly; 15. Insulation layer; 16. Pressure transmitter; 17. Digital display integration; 18. External control port. Detailed Implementation

[0026] The present invention will now be described in conjunction with specific embodiments.

[0027] An offline energy-saving filter regeneration device, such as Figures 1-4 As shown: The device includes a regeneration chamber 8 connected to both ends of the filter cartridge device 3. The regeneration chamber 8 can be placed on a test bench for offline automatic regeneration of the filter cartridge device 3, achieving unmanned and miniaturized inlet operation. The top of the regeneration chamber 8 is equipped with a handle. Inside the regeneration chamber 8 are a connected gas mixing unit 4 and a heating unit 5.

[0028] The regeneration chamber 8 has an inlet and an outlet at each end. The inlet of the regeneration chamber 8 is connected to the regeneration gas pipeline system 9 through one of the interfaces of the dual-line air inlet interface 7. The other interface of the dual-line air inlet interface 7 is connected to an air source 6. The air source 6 uses compressed air to provide the air supply and airflow power. It is connected to the dual-line air inlet interface 7 using a universal interface. The dual-line air inlet interface 7 is equipped with a valve connected to the control system. The amount of exhaust gas entering the chamber is controlled by monitoring the pressure in the mixing chamber 13.

[0029] The dual-line air intake interface 7 is connected to the inlet of the mixing unit 4 through the oil-water separator 11 located at the front end of the regeneration box 8. The oil-water separator 11 is a standard part.

[0030] The gas mixing unit 4 includes a gas mixing chamber 13, which is located at the front of the regeneration chamber 8. A temperature sensor 10 is inserted at the front end of the filter assembly 12 in the gas mixing unit 4. The temperature sensor 10 is connected to the control system, and the temperature of the gas mixing unit 4 is displayed on a screen located outside the regeneration chamber 8. A pressure transmitter 16 is inserted inside the gas mixing chamber 13, and the pressure transmitter 16 is connected to the control system, transmitting the real-time pressure value to the control system. The filter assembly 12, made of metal fiber felt (using existing technology), is installed at the inlet of the gas mixing chamber 13, enabling the filtration of high-temperature particulate matter or dust. A one-way valve 1 is installed at the outlet of the gas mixing chamber 13. Perforated plates 2 are provided on both sides of the one-way valve 1. The one-way valve 1 is connected to the heating unit 5. The gas mixing unit 4 and the heating unit 5 are isolated by the one-way valve 1 to achieve uniform gas distribution and prevent excessive local pressure or uneven gas mixing.

[0031] The heating unit 5 includes an inner shell housed inside the regeneration chamber 8. The inner shell house is made of 316 stainless steel. An insulation layer 15 is provided between the inner shell house and the regeneration chamber 8 to ensure the stability of the heat source temperature and reduce energy consumption. The insulation layer 15 includes ceramic fiber insulation cotton filled between the inner shell house and the regeneration chamber 8. Multiple heating components 14 are inserted inside the inner shell house to provide a heat source for the input air. The heating components 14 include heating rods vertically inserted into the inner shell house. The heating rods are connected to the control system signal to realize automatic temperature adjustment. A heating chamber is formed inside the inner shell house and is connected to the outlet of the regeneration equipment. A temperature sensor 10 is provided at one end of the inner shell house near the outlet of the heating unit 5. The temperature sensor 10 is connected to the control system and the temperature of the heating unit 5 is displayed on a display screen located outside the regeneration chamber 8. The outlet of the regeneration equipment is connected to the filter element equipment 3 through a quick connector and a copper pipe.

[0032] The control system is integrated inside the regeneration chamber 8. It supports both local and remote modes via an external control port 18, which is directly connected to the PLC. This port allows for receiving external start / stop commands or outputting equipment operating parameters to the central control system. Predefined parameters can also be input via the port. Temperature sensors 10 at the front end of the mixing unit 4 and at the outlet of the heating unit 5 are connected to the PLC's analog input terminals to monitor the airflow temperature in real time. Simultaneously, the pressure transmitter 16 inside the mixing chamber 13 is connected to the PLC to transmit pressure data. The PLC's output terminals drive the heating rods via relays and adjust the heating power. The PLC's communication port connects to an external digital display integrated unit 17, which displays all operating parameters, dynamically showing temperature and pressure values.

[0033] In use, compressed air and the exhaust gas purged by the filter element device 3 enter the regeneration equipment through the dual-line air inlet 7. After passing through the oil-water separator 11 and the filter assembly 12, the oil and dust are removed. The mixture is then uniformly mixed in the mixing chamber 13 and, after pressure stabilization, enters the heating unit 5 through the one-way gate valve 1. The heating assembly 14 heats the exhaust gas to 240°C, causing the exhaust gas to react and decompose in the heating chamber. The treated exhaust gas then enters the filter element device 3 through the outlet of the regeneration equipment to purge the filter element. Part of the purged exhaust gas is discharged, while the remaining exhaust gas, retaining its heat, enters another filter element device 3 for purging. The exhaust gas operation is powered by compressed air.

[0034] The scope of protection claimed by this utility model is not limited to the specific embodiments described above. Moreover, for those skilled in the art, this utility model can have various modifications and alterations. Any modifications, improvements, and equivalent substitutions made within the concept and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A filter cartridge offline energy-saving regeneration device, characterized in that, It includes a regeneration box (8) connected to both ends of the filter element device (3), and the regeneration box (8) is provided with a gas mixing unit (4) and a heating unit (5) connected in communication. The inlet of the regeneration box (8) is connected to the regeneration gas pipeline system (9) through one of the interfaces of the dual-line air inlet interface (7). The other interface of the dual-line air inlet interface (7) is connected to the air inlet source (6). The dual-line air inlet interface (7) is connected to the inlet of the mixing unit (4) through the oil-water separator (11) set at the front end of the regeneration box (8). The gas mixing unit (4) includes a gas mixing chamber (13), which is located at the front of the regeneration box (8). A filter assembly (12) is installed at the inlet of the gas mixing chamber (13), and a one-way valve (1) is installed at the outlet of the gas mixing chamber (13). The one-way valve (1) is connected to the heating unit (5). The heating unit (5) includes an inner shell disposed inside the regeneration box (8), with an insulation layer (15) between the inner shell and the regeneration box (8), and multiple heating components (14) inserted inside the inner shell. A temperature sensor (10) is provided at one end of the inner shell near the outlet of the heating unit (5).

2. The filter cartridge offline energy-saving regeneration device according to claim 1, characterized in that: The mixing unit (4) is equipped with a temperature sensor (10) at the front end of the filter assembly (12), and a pressure transmitter (16) is installed in the mixing chamber (13).

3. The filter cartridge offline energy-saving regeneration device according to claim 1, characterized in that: The one-way slide valve (1) is provided with perforated plates (2) on both sides.

4. The filter cartridge offline energy-saving regeneration device according to claim 1, characterized in that: The insulation layer (15) includes ceramic fiber insulation cotton filled between the inner shell and the recycled box (8).

5. The filter cartridge offline energy-saving regeneration device according to claim 1, characterized in that: The heating assembly (14) includes a heating rod that is vertically inserted into the inner housing.

6. The filter cartridge offline energy-saving regeneration device according to claim 1, characterized in that: A heating chamber is formed inside the inner shell, and the heating chamber is connected to the outlet of the regeneration equipment. The outlet of the regeneration equipment is connected to the filter element equipment (3) through a quick connector and a copper pipe.