Plate economizer with filtering device

Abstract

The utility model discloses a plate economizer with filter device belongs to economizer device technical field, including the casing, and the casing both ends are established with the air inlet and the gas outlet respectively, is provided with the heat exchange subassembly in the casing, filter board, filter board sets up in the casing, and filter board is located between the air inlet and the heat exchange subassembly, cleaning component, and cleaning component includes the brush and the scraper, and the scraper is slidably connected with the side of filter board close to the air inlet, and the flexible bristle of brush is opposite with the side of filter board away from the air inlet, and the scraper is located above the brush, and the bottom of casing is established with the receiving groove, and the receiving groove is located directly below the scraper, drive component, drive component sets up on the casing, and drive component is transmission connection with the brush and the scraper. The utility model can filter solid impurity particle in flue gas, reduce the retention adsorption of impurity on the heat exchange subassembly, improve the heat exchange effect, improve the heat utilization rate.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal economizer device technical field, especially a kind of plate-type coal economizer with filter device. BACKGROUND

[0002] In the process of boiler combustion, the waste heat of high temperature is contained in flue gas, which is usually discharged in the form of flue gas from flue, in order to recycle and utilize the waste heat in flue gas, a coal economizer is usually installed at the tail of the flue, the coal economizer exchanges heat with waste heat, so as to effectively recycle and utilize the waste heat. However, there are usually a lot of solid impurities in flue gas, so when flue gas passes through the coal economizer, impurities are easily adsorbed in the flue gas passage of the coal economizer, which reduces the conversion rate of heat energy.

[0003] Therefore, a plate-type coal economizer with filter device is provided. CONTENT OF UTILITY MODEL

[0004] The utility model aims to provide a kind of plate-type coal economizer with filter device, to solve or improve at least one of the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme: the utility model provides a kind of plate-type coal economizer with filter device, comprising:

[0006] The shell is provided with a heat exchange assembly in the shell.

[0007] The filter plate is arranged in the shell, and the filter plate is located between the air inlet and the heat exchange assembly.

[0008] The cleaning assembly includes a brush and a scraper, the scraper is slidingly connected to one side of the filter plate close to the air inlet, the flexible bristles of the brush abut the side of the filter plate away from the air inlet, the scraper is above the brush, and the shell is provided with a receiving groove at the bottom, and the receiving groove is located directly below the scraper.

[0009] The driving assembly is arranged on the shell, and the driving assembly is drivingly connected to the brush and the scraper.

[0010] Preferably, first sliding grooves are formed in the opposite inner side walls of the shell, the ends of the scraper extend into the two first sliding grooves and are slidingly connected to the first sliding grooves, second sliding grooves are formed in the opposite inner side walls of the shell, and the ends of the brush extend into the two second sliding grooves and are slidingly connected to the second sliding grooves.

[0011] Preferably, the driving assembly comprises a cavity formed in the shell, the cavity is communicated with the second sliding groove, a motor is fixedly connected in the cavity, an output shaft of the motor is fixedly connected with a lead screw, the lead screw is rotationally connected with the cavity, a sleeve is threadedly connected with the lead screw, the sleeve is fixedly connected with the brush and connected with the scraper.

[0012] Preferably, a connecting groove is formed in the shell, the connecting groove is communicated with the cavity and the first sliding groove, a connecting plate is slidably connected in the connecting groove, and the connecting plate is fixedly connected with the scraper and the sleeve at two ends.

[0013] Preferably, a clamping groove is circumferentially formed in the inner wall of the shell, the filter plate is clamped with the clamping groove, and the clamping groove is communicated with the receiving groove.

[0014] Preferably, an installation groove communicated with the clamping groove is formed in the top wall of the shell, a top cover is detachably connected in the installation groove, and the bottom of the top cover is abutted with the top of the filter plate.

[0015] Preferably, the heat exchange assembly comprises a plurality of heat exchange plates fixedly connected in the shell in sequence, a flue gas passage is formed between two adjacent heat exchange plates, the flue gas passage is communicated with the gas inlet and the gas outlet, a water inlet and outlet assembly is arranged on the shell, and the water inlet and outlet assembly is communicated with the inner cavities of the plurality of heat exchange plates.

[0016] Preferably, the water inlet and outlet assembly comprises a water inlet pipe and a water outlet pipe fixedly connected on the shell, the water inlet pipe sequentially penetrates through the plurality of heat exchange plates and is fixedly and communicated with the inner cavities of the heat exchange plates, and the water outlet pipe sequentially penetrates through the plurality of heat exchange plates and is fixedly and communicated with the inner cavities of the heat exchange plates.

[0017] The utility model discloses the following technical effects: flue gas enters the shell from the gas inlet, first passes through the filter plate, filters larger solid impurity particles, reduces the impurity content of flue gas, then flue gas enters the heat exchange assembly and exchanges heat with the heat exchange assembly, realizes the recovery of heat, when the impurities on the filter plate are more, the scraper and the brush are driven to move downward simultaneously by the driving assembly, the flexible bristles of the brush abut with the filter plate, the impurities in the filter hole are cleaned in the moving process, the blockage of the filter hole is reduced, then the scraper scrapes the impurities and enters the receiving groove, the utility model discloses the filter plate is arranged between the heat exchange assembly, can filter the solid impurity particles in flue gas, reduces the retention and adsorption of impurities on the heat exchange assembly, improves the heat exchange effect and improves the heat utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of this application are used to provide further understanding of the application, and the illustrative embodiments of the application and their descriptions are used to explain the application, and do not constitute improper limitation on the application.

[0019] Figure 1 It is a perspective view of the utility model;

[0020] Figure 2 It is a schematic view of the internal structure of the shell in the utility model;

[0021] Figure 3 It is a schematic view of the installation of the brush and the scraper in the utility model;

[0022] Figure 4 It is a schematic view of the structure of the driving assembly in the utility model;

[0023] Figure 5 It is a schematic view of the structure of the shell near the air inlet in the utility model.

[0024] In the drawing: 1, shell; 2, air inlet; 3, air outlet; 4, filter plate; 5, brush; 6, scraper; 7, receiving groove; 8, first sliding groove; 9, second sliding groove; 10, cavity; 11, motor; 12, lead screw; 13, screw sleeve; 14, connecting groove; 15, connecting plate; 16, clamping groove; 17, top cover; 18, heat exchange plate; 19, water inlet pipe; 20, water outlet pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0027] With reference to Figures 1-5 The utility model provides a plate type coal economizer with filter device, include:

[0028] Shell 1, shell 1 both ends are provided with air inlet 2 and air outlet 3 respectively, and shell 1 is provided with heat exchange assembly in;

[0029] Filter plate 4, filter plate 4 is arranged in shell 1, and filter plate 4 is located between air inlet 2 and heat exchange assembly;

[0030] The cleaning assembly comprises a brush 5 and a scraper 6, the scraper 6 is slidably connected to the side of the filter plate 4 close to the air inlet 2, the flexible bristles of the brush 5 abut the side of the filter plate 4 away from the air inlet 2, the scraper 6 is located above the brush 5, and the bottom of the shell 1 is provided with a receiving groove 7 located directly below the scraper 6;

[0031] The driving assembly is arranged on the shell 1 and is in transmission connection with the brush 5 and the scraper 6.

[0032] The flue gas enters the shell 1 from the air inlet 2, first passes through the filter plate 4 to filter larger solid impurity particles and reduce the impurity content of the flue gas, then the flue gas enters the heat exchange assembly to exchange heat with the heat exchange assembly to realize heat recovery, when the filter plate 4 has more impurities, the scraper 6 and the brush 5 are driven by the driving assembly to move downward at the same time, the flexible bristles of the brush 5 abut the filter plate 4, and the impurities in the filter hole are cleaned during the movement process to reduce the blockage of the filter hole, and then the scraper 6 scrapes the impurities into the receiving groove 7.

[0033] Further optimization scheme, the first sliding groove 8 is arranged on the opposite two inner side walls of the shell 1, the two ends of the scraper 6 extend into the two first sliding grooves 8 and are in sliding connection with the first sliding grooves 8, and the second sliding groove 9 is arranged on the opposite two inner side walls of the shell 1, and the two ends of the brush 5 extend into the two second sliding grooves 9 and are in sliding connection with the second sliding grooves 9.

[0034] Further optimization scheme, the driving assembly comprises a cavity 10 arranged in the shell 1, the cavity 10 is in communication with the second sliding groove 9, a motor 11 is fixedly connected in the cavity 10, a lead screw 12 is fixedly connected to the output shaft of the motor 11, the lead screw 12 is in rotation connection with the cavity 10, a threaded sleeve 13 is threadedly connected to the lead screw 12, the threaded sleeve 13 is fixedly connected with the brush 5 and connected with the scraper 6.

[0035] The motor 11 is started to drive the lead screw 12 to rotate, so that the threaded sleeve 13 moves downward, and the brush 5 and the scraper 6 move downward synchronously, the soft bristles on the brush 5 clean the filter plate 4 during the movement process, then the scraper 6 removes the impurities and falls into the receiving groove 7 below to be collected, thereby realizing the cleaning of the filter plate 4, and after the cleaning is completed, the brush 5 and the scraper 6 are lifted to the top of the inner cavity of the shell 1 by the motor 11.

[0036] Further optimization scheme, a connecting groove 14 is arranged in the shell 1, the connecting groove 14 is in communication with the cavity 10 and the first sliding groove 8, a connecting plate 15 is slidably connected in the connecting groove 14, and the two ends of the connecting plate 15 are fixedly connected with the scraper 6 and the threaded sleeve 13.

[0037] Further optimization scheme, the inner wall of the shell 1 is provided with a clamping groove 16 in the circumferential direction, the filter plate 4 is clamped with the clamping groove 16, and the clamping groove 16 is communicated with the receiving groove 7.

[0038] Further optimization scheme, the outer top wall of the shell 1 is provided with a mounting groove communicated with the clamping groove 16, and the mounting groove is detachably connected with a top cover 17; the bottom of the top cover 17 is abutted with the top of the filter plate 4;

[0039] The top cover 17 is connected with the shell 1 through bolts, the filter plate 4 is clamped in the clamping groove 16, and the positioning of the filter plate 4 is realized; when the filter plate 4 needs to be replaced and maintained, the top cover 17 is opened, and the filter plate 4 can be taken out from the clamping groove 16, and the operation is convenient.

[0040] Further optimization scheme, the heat exchange assembly comprises a plurality of heat exchange plates 18 which are sequentially fixed in the shell 1, smoke gas channels are formed between the adjacent two heat exchange plates 18, the smoke gas channels are communicated with the gas inlet 2 and the gas outlet 3, and a water inlet and outlet assembly is arranged on the shell 1 and communicated with the inner cavities of the plurality of heat exchange plates 18;

[0041] The heat exchange plate 18 has a serpentine water flow channel, and water flows through the water flow channel and exchanges heat with the heat exchange plate 18.

[0042] Further optimization scheme, the water inlet and outlet assembly comprises a water inlet pipe 19 and a water outlet pipe 20 which are fixed on the shell 1, the water inlet pipe 19 sequentially penetrates through the plurality of heat exchange plates 18 and is fixedly connected and communicated with the inner cavities of the heat exchange plates 18, and the water outlet pipe 20 sequentially penetrates through the plurality of heat exchange plates 18 and is fixedly connected and communicated with the inner cavities of the heat exchange plates 18.

[0043] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0044] The above-described embodiments are only preferred modes of the present application and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A plate economizer having a filtering device, characterized by, Include: The shell (1) is provided with air inlet (2) and air outlet (3) at both ends, respectively, the shell (1) is provided with heat exchange assembly; Filter plate (4), the filter plate (4) is arranged in the shell (1), the filter plate (4) is located between the air inlet (2) and the heat exchange assembly; Cleaning assembly, the cleaning assembly includes brush (5) and scraper (6), the scraper (6) is slidably connected with the side of the filter plate (4) close to the air inlet (2), the flexible bristles of the brush (5) abut with the side of the filter plate (4) away from the air inlet (2), the scraper (6) is located above the brush (5), the bottom of the shell (1) is provided with a receiving groove (7), the receiving groove (7) is located directly below the scraper (6); Drive assembly, the drive assembly is arranged on the shell (1), the drive assembly is drivingly connected with the brush (5) and the scraper (6).

2. The plate economizer with filtering device according to claim 1, characterized in that: The first sliding slot (8) is formed on the opposite two inner side walls of the shell (1), respectively, the two ends of the scraper (6) are respectively inserted into the two first sliding slots (8) and are slidably connected with the first sliding slots (8), the second sliding slot (9) is formed on the opposite two inner side walls of the shell (1), respectively, the two ends of the brush (5) are respectively inserted into the two second sliding slots (9) and are slidably connected with the second sliding slots (9).

3. The plate economizer with filtering device according to claim 2, characterized in that: The drive assembly includes a cavity (10) formed in the shell (1), the cavity (10) is communicated with the second sliding slot (9), the motor (11) is fixedly connected in the cavity (10), the output shaft of the motor (11) is fixedly connected with the lead screw (12), the lead screw (12) is rotatably connected with the cavity (10), the lead screw (12) is threadedly connected with the sleeve (13), the sleeve (13) is fixedly connected with the brush (5) and connected with the scraper (6).

4. The plate economizer with filtering device according to claim 3, characterized in that: The connecting groove (14) is formed in the shell (1), the connecting groove (14) is communicated with the cavity (10) and the first sliding slot (8), the connecting plate (15) is slidably connected in the connecting groove (14), the two ends of the connecting plate (15) are fixedly connected with the scraper (6) and the sleeve (13), respectively.

5. The plate economizer with filtration device of claim 1, wherein: The clamping groove (16) is circumferentially formed on the inner wall of the shell (1), the filter plate (4) is clamped with the clamping groove (16), and the clamping groove (16) is communicated with the receiving groove (7).

6. The plate economizer with filtering device according to claim 5, characterized in that: The mounting groove is formed on the outer top wall of the shell (1) and communicated with the clamping groove (16), the top cover (17) is detachably connected in the mounting groove, and the bottom of the top cover (17) abuts with the top of the filter plate (4).

7. The plate economizer with filtration device of claim 1, wherein: The heat exchange assembly includes a plurality of heat exchange plates (18) fixedly connected in the shell (1) in sequence, a flue gas passage is formed between the two adjacent heat exchange plates (18), the flue gas passage is communicated with the air inlet (2) and the air outlet (3), and the inlet and outlet water assembly is arranged on the shell (1), and the inlet and outlet water assembly is communicated with the inner cavities of the plurality of heat exchange plates (18).

8. The plate economizer with filtering device according to claim 7, characterized in that: The water inlet and outlet assembly comprises a water inlet pipe (19) and a water outlet pipe (20) fixed on the shell (1), the water inlet pipe (19) penetrates through the heat exchange plates (18) in sequence and is fixedly connected with the inner cavities of the heat exchange plates (18), and the water outlet pipe (20) penetrates through the heat exchange plates (18) in sequence and is fixedly connected with the inner cavities of the heat exchange plates (18).

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