Filter and setting machine waste heat recovery device

Abstract

The utility model discloses a filter which comprises a filter body, the filter body is provided with an outlet and an inlet, waste gas of a setting machine enters the filter body through the inlet to be filtered, impurities are filtered out, and then the waste gas flows out of the outlet, and the filter further comprises a pressure difference detection piece, a controller and an alarm system, the pressure difference is measured and calculated, the pressure difference is converted into a signal to be transmitted to the controller, and the controller receives and processes the signal and selectively triggers the alarm system through judgment. Through the combination of the pressure difference detection piece, the controller and the alarm system, the blockage condition of the filter can be clearly prompted, a user can conveniently handle the blockage condition in time, more labor and worry are saved for the user, and the filter is richer in function and more practical for the filter.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, specifically relating to filters and waste heat recovery devices for stenters. Background Technology

[0002] During the operation of the setting machine, the fluid medium contains various particles and impurities. These impurities are intercepted by the filter components as they pass through the filter and accumulate inside, eventually leading to filter blockage. To reduce filter clogging, users need to clean and maintain the filter regularly.

[0003] In the prior art, clogging of the internal filter components of a filter may lead to reduced airflow, decreased air pressure, increased noise, and even equipment failure. To avoid this, operators need to constantly check the pressure gauge and observe the operating status of the equipment. However, there is a lack of equipment that can clearly indicate to the user that the filter is clogged. Therefore, this utility model proposes a filter and a waste heat recovery device for a stenter. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art, and to provide a filter and a waste heat recovery device for a stenter. By setting a differential pressure detection element, a first controller and an alarm system, it can alert the user to internal blockage of the filter, making it easier for the user to deal with the blockage in time, and making it more labor-saving and worry-free to use.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] The filter includes a filter body with an outlet and an inlet. Waste gas or waste liquid enters the filter body through the inlet for filtration. After impurities are removed, the waste gas or liquid flows out through the outlet. The filter also includes a differential pressure detection element, a first controller, and an alarm system. The differential pressure detection element is used to detect the pressure at the inlet and outlet, calculate the pressure difference, and convert the pressure difference into a signal that is transmitted to the first controller. The first controller receives and processes the signal and selectively triggers the alarm system based on the judgment.

[0007] Furthermore, the differential pressure detection device employs a first sensor, a second sensor, and a differential pressure sensor. The first sensor is located at the inlet and is used to detect the flow pressure of the gas or liquid at the inlet. The second sensor is located at the outlet and is used to detect the flow pressure of the gas or liquid at the outlet. The differential pressure sensor is electrically connected to the first sensor and the second sensor respectively. The differential pressure sensor is used to calculate the pressure difference between the first sensor and the second sensor and convert the pressure difference into a signal output to the first controller. The first controller receives and processes the signal and selectively triggers the alarm system.

[0008] Furthermore, the filter body is equipped with a filter element, which allows gas or liquid to pass through the filter element when flowing from the inlet to the outlet.

[0009] Furthermore, the filter body is equipped with a cleaning mechanism, which has a cleaning port facing the filter assembly. The cleaning mechanism is connected to an external water pipe, so that cleaning water is sprayed from the cleaning port onto the filter assembly.

[0010] Furthermore, the cleaning mechanism includes a rotating mechanism, a first spray pipe, and a second spray pipe. The rotating mechanism is connected to the first spray pipe and is used to drive the first spray pipe to rotate. The second spray pipe is arranged at intervals along the axial direction of the first spray pipe and is connected to the first spray pipe. The second spray pipe corresponds to the filter assembly and is provided with a cleaning port.

[0011] Furthermore, the filter assembly includes at least one first connector and at least two filter units, which are arranged side by side on the same straight line. Adjacent filter units are assembled and disassembled through the first connector to change the filtration area of ​​the filter assembly.

[0012] Furthermore, the first connector is provided with a through hole, and the first spray pipe is disposed in the through hole, so that the first spray pipe passes through the filter assembly, and the body of the second spray pipe faces the filter assembly.

[0013] Furthermore, the filter unit is equipped with a handle for user operation.

[0014] Furthermore, the first connector is provided with a first channel, and the side of the filter unit is embedded in the first channel, so that adjacent filter units can be detached and connected.

[0015] Furthermore, the filter components are arranged along the width of the filter body, with adjacent filter components joined at an angle to form a zigzag structure.

[0016] Furthermore, a second connector is provided inside the filter body, and the second connector is detachably connected to the filter assembly.

[0017] Furthermore, the second connector is provided with a second channel, which is engaged with the side of the filter assembly.

[0018] Furthermore, the filter body is provided with a drain outlet for draining water. The filter body is provided with a guide for receiving the cleaning water from the cleaning mechanism. One side of the guide is higher than the other side, with a natural transition in the middle. The side with the lower height faces the drain outlet so that the cleaning water is concentrated in the drain outlet and discharged.

[0019] Furthermore, the guide component has a buffer groove on the side with lower height, and the drain outlet is connected to the buffer groove.

[0020] Furthermore, the export includes ports A and B, with port A having a larger area than port B, and a natural transition in between; the import includes ports E and F, with port E having a larger area than port F, and a natural transition in between.

[0021] Furthermore, it also includes fire dampers, which are installed on the inlet side and / or the outlet side, and are used to block the passage of smoke and flames.

[0022] Furthermore, the waste heat recovery device for the stenter includes an exhaust duct for connecting the stenter, and a filter is installed on the exhaust duct.

[0023] Furthermore, the filter body and / or the exhaust duct are provided with observation ports, and the observation ports are movably fitted with covers for opening and closing the observation ports.

[0024] Furthermore, it also includes a temperature detection system, which is used to detect and report the temperature of the filter.

[0025] Furthermore, the temperature detection system includes a third sensor, a second controller, and a fire suppression system. The third sensor is installed on the filter body or the exhaust duct. The third sensor is used to detect the temperature and send the temperature signal to the second controller, which selectively triggers the fire suppression system.

[0026] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0027] This utility model includes a filter body with an outlet and an inlet. Exhaust gas from the stenter enters the filter body through the inlet for filtration, removing impurities before flowing out through the outlet. It also includes a differential pressure detector, a first controller, and an alarm system. The differential pressure detector detects the pressure at the inlet and outlet, calculates the pressure difference, and converts it into a signal that is sent to the first controller. The first controller receives and processes the signal and selectively triggers the alarm system based on its judgment. The combination of the differential pressure detector, the first controller, and the alarm system clearly indicates whether the filter is clogged, allowing users to address the issue promptly. This saves users time and effort, and enhances the filter's functionality and practicality. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the application of this utility model in the exhaust pipe of a stenter;

[0030] Figure 2 This is a front view of the present invention;

[0031] Figure 3 for Figure 2Sectional view at point AA;

[0032] Figure 4 This is a side view of the present invention;

[0033] Figure 5 This is a front view of the cover plate in this utility model;

[0034] Figure 6 This is a schematic diagram of the internal structure of the first spray pipe and the second spray pipe in this utility model;

[0035] Figure 7 This is a top view of the second connecting member in this utility model;

[0036] Figure 8 This is a top view of the first connecting member in this utility model;

[0037] Figure 9 This is a front view of the filter unit in this utility model;

[0038] In the diagram, 1-Filter body; 2-First connector; 3-Filter unit; 4-Filter assembly; 5-Base plate; 6-Buffer tank; 7-Inlet; 8-Outlet; 9-First spray pipe; 10-Second spray pipe; 11-Handle; 12-Second connector; 13-Rotating mechanism; 14-Cover plate; 15-Handle; 16-First sensor; 17-Fire damper; 18-Exhaust air duct; 19-First channel; 20-Second channel; 21-Drain outlet; 22-Cleaning outlet; 23-Second sensor; 24-Third sensor. Detailed Implementation

[0039] like Figures 1 to 9 As shown, this utility model's filter includes a filter body 1, which has an outlet 8 and an inlet 7. Sterilizer exhaust gas enters the filter body 1 through the inlet 7 for filtration, and after impurities are removed, it flows out through the outlet 8. It also includes a differential pressure detection element, a first controller, and an alarm system. The differential pressure detection element comprises a first sensor 16, a second sensor 23, and a differential pressure sensor. The first sensor 16 is located at the inlet 7 and is used to detect the flow pressure of gas or liquid at the inlet 7. The first sensor 16 is located at the outlet 8. The second sensor 23 is used to detect the flow pressure of gas or liquid at the outlet 8. The differential pressure sensor is electrically connected to both the first sensor 16 and the second sensor 23. The differential pressure sensor calculates the pressure difference between the first sensor 16 and the second sensor 23 and converts the pressure difference into a signal output to the first controller. The first controller receives and processes the signal, selectively triggering the alarm system. When the first controller determines that the pressure difference exceeds a preset value, it activates the alarm system, prompting the user to check the internal condition of the filter body 1 to avoid internal blockage.

[0040] The filter body 1 has a second connector 12, which has a second channel 20 that engages with the side of the filter assembly 4. The filter assemblies 4 are arranged along the width of the filter body 1, with adjacent assemblies 4 joined at an angle to form a zigzag structure. Each filter assembly 4 includes at least one first connector 2 and at least two filter units 3. Each filter unit 3 has a handle 11 for user operation. The filter units 3 are arranged side-by-side on the same straight line. The first connector 2 has a first channel 19 that engages with the side of the filter unit 3, allowing adjacent filter units 3 to be detached and connected. This increases the filtration area of ​​the filter assembly 4, thereby altering the width of the zigzag structure and increasing the velocity of the exhaust gas.

[0041] The filter body 1 contains a filter assembly 4, which allows gas or liquid to pass through when flowing from the inlet 7 to the outlet 8. The filter body 1 also contains a cleaning mechanism, which includes a rotating mechanism 13, a first spray pipe 9, and a second spray pipe 10. A first connector 2 has a through hole, and the first spray pipe 9 is positioned within this hole, allowing it to pass through the filter assembly 4. The rotating mechanism 13 connects to the first spray pipe 9 and drives it to rotate. The second spray pipe 10 connects to the first spray pipe 9 and is spaced axially along the first spray pipe 9, with its body facing the filter assembly 4. The second spray pipe 10 has a cleaning port 22 facing the filter assembly 4. The first spray pipe 9 is connected to an external water pipe, allowing cleaning water to be sprayed onto the filter assembly 4 from the cleaning port 22. The second spray pipe 10 rotates around the first spray pipe 9, expanding the cleaning range and ensuring that most of the filter assembly 4 is sprayed.

[0042] The filter body 1 is equipped with a drain outlet 21 for drainage. Inside the filter body 1 is a guide member designed to collect the cleaning water from the cleaning mechanism. One side of the guide member is higher than the other, with a natural transition in the middle. The middle section can be inclined, rounded, or have other curvatures to facilitate guidance. The lower side faces the drain outlet 21, allowing the cleaning water to concentrate and drain out within it. A buffer groove 6 is located on the lower side of the guide member, and the drain outlet 21 connects to the buffer groove 6. The guide member is typically made from the base plate 5 of the filter body 1. This height difference prevents water accumulation at the bottom of the filter. The buffer groove 6 on the lower side effectively mitigates the impact of the flowing water and reduces splashing.

[0043] The waste heat recovery device for the stenter includes an exhaust air duct 18, which is connected to the stenter. A filter is installed on the exhaust air duct 18. The filter body 1, the exhaust air duct 18, or both devices are equipped with observation ports. A cover 14 is movably mounted on the observation port for opening and closing. A handle 15 is provided on the cover 14, allowing the user to open and close it.

[0044] This utility model also includes a fire damper 17. The outlet 8 includes ports A and B, with port A having a larger area than port B, forming a natural transition. The inlet 7 includes ports E and F, with port E having a larger area than port F, forming a natural transition. The fire damper 17 is located on one side of the inlet 7 and / or on one side of the outlet 8. The fire damper 17 is used to block the passage of smoke and flames. The fire damper 17's location on one side of the inlet 7 prevents flames from other equipment from damaging the filter through the exhaust duct 18; its location on the side connecting to the outlet 8 prevents flames from the filter from affecting other equipment through the exhaust duct 18.

[0045] This utility model also includes a third sensor 24, a second controller, and a fire protection system. The third sensor 24 is installed on the filter body 1 or the exhaust air duct 18. The third sensor 24 is used to detect the temperature and send the temperature signal to the second controller. When the second controller determines that the temperature data is greater than the preset value, the second controller triggers the fire protection system. The fire protection system can usually be a fire protection system using water spray fire extinguishing device or dry powder fire extinguishing agent.

[0046] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A filter comprising a filter body provided with an outlet and an inlet through which exhaust gas or liquid waste enters the interior of the filter body for filtration, and after filtration of impurities, flows out from the outlet, characterized in that: The differential pressure detection member is used to detect the pressure of the inlet and the outlet, calculate the pressure difference, and convert the pressure difference into a signal to the first controller. ​ 2. The filter of claim 1, wherein: The differential pressure detection member adopts a first sensor, a second sensor and a differential pressure sensor, the first sensor is arranged at the inlet, the first sensor is used to detect the flow pressure of the gas or liquid at the inlet, the second sensor is arranged at the outlet, the second sensor is used to detect the flow pressure of the gas or liquid at the outlet, the differential pressure sensor is electrically connected with the first sensor and the second sensor respectively, the differential pressure sensor is used to calculate the pressure difference between the first sensor and the second sensor, and convert the pressure difference into a signal output to the first controller, the first controller receives and processes the signal, and selectively triggers the alarm system.

3. The filter of claim 1, wherein: The filter body is provided with a filter assembly, so that the gas or liquid flows from the inlet to the outlet through the filter assembly.

4. The filter of claim 3, wherein: The filter body is provided with a cleaning mechanism, the cleaning mechanism is provided with a cleaning port, the cleaning port faces the filter assembly, and the cleaning mechanism is connected with an external water pipe, so that cleaning water is sprayed from the cleaning port to the filter assembly.

5. The filter of claim 4, wherein: The cleaning mechanism includes a rotating mechanism, a first spray pipe and a second spray pipe, the rotating mechanism is connected with the first spray pipe, and the rotating mechanism is used to drive the first spray pipe to rotate; the second spray pipe is arranged along the axial direction of the first spray pipe, the second spray pipe is connected with the first spray pipe, the second spray pipe corresponds to the filter assembly, and the second spray pipe is provided with the cleaning port.

6. The filter of claim 5, wherein: The filter assembly includes at least one first connecting piece and at least two filter units, the filter units are arranged side by side on the same straight line, and adjacent filter units are disassembled and assembled through the first connecting piece to change the filtering area of the filter assembly.

7. The filter of claim 6, wherein: The first connecting piece is provided with a through hole, the first spray pipe is arranged in the through hole, so that the first spray pipe penetrates through the filter assembly, and the pipe body of the second spray pipe faces the filter assembly.

8. The filter of claim 6, wherein: The filter unit is provided with a handle, and the handle is used for user operation.

9. The filter of claim 6, wherein: The first connecting piece is provided with a first groove, the side of the filter unit is embedded in the first groove, so that adjacent filter units are disassembled and assembled.

10. The filter of claim 3, wherein: The filter assembly is arranged and distributed along the width direction of the filter body, and adjacent filter assemblies are angularly spliced to form a zigzag structure.

11. The filter of claim 3, wherein: The filter body is provided with a second connecting piece, the second connecting piece is disassembled and assembled with the filter assembly.

12. The filter of claim 11, wherein: The second connecting piece is provided with a second groove, and the side of the filter assembly is clamped and connected in the second groove.

13. The filter of claim 4, wherein: The filter body is provided with a blowdown port for draining water, and a guide member is arranged in the filter body for receiving cleaning water of the cleaning mechanism, one side of the guide member is higher than the other side, and the height gradually decreases from one side to the other side, and the lower side is directed to the blowdown port so that the cleaning water is concentrated in the blowdown port and discharged.

14. The filter of claim 13, wherein: The lower side of the guide member is provided with a buffer groove, and the blowdown port is communicated with the buffer groove.

15. The filter of claim 1, wherein: The outlet comprises a port A and a port B, the area of the port A is larger than that of the port B, and the area gradually decreases from the port A to the port B; the inlet comprises a port E and a port F, the area of the port E is larger than that of the port F, and the area gradually decreases from the port E to the port F.

16. The filter of claim 1, wherein: A fireproof valve is further arranged on one side of the inlet and / or one side of the outlet, and the fireproof valve is used for blocking the passage of flue gas and flame.

17. A device for recovering waste heat from a stenter, comprising a waste air duct for connecting a stenter, characterized in that: The filter according to any one of claims 1-16 is arranged on the exhaust air duct.

18. The apparatus according to claim 17, wherein: An observation port is arranged on the filter body and / or the exhaust air duct, and a cover plate is movably arranged on the observation port, and the cover plate is used for opening and closing the observation port.

19. The apparatus according to claim 17, wherein: A temperature detection system is further arranged, and the temperature detection system is used for detecting and feeding back the temperature of the filter.

20. The apparatus of claim 19, wherein: The temperature detection system comprises a third sensor, a second controller and a fire extinguishing system, the third sensor is arranged on the filter body or the exhaust air duct, the third sensor is used for detecting the temperature and sending a temperature signal to the second controller, and the second controller selectively triggers the fire extinguishing system.

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