Waste gas waste heat recovery condensing device for biomass boiler

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a waste gas waste heat recovery condensing device for a biomass boiler, which is characterized in that impurities mixed in waste gas of the boiler are filtered through a filtering device and then are condensed and subjected to heat exchange, and the filtering device is driven to vibrate through a vibrating device, so that dirt adhered to the filtering device is reduced; the filtering efficiency and the gas passing rate of the filtering device are kept, dirt filtered out by the filtering device is collected and discharged through the dirt discharging device, the filtering device is cleaned through the cleaning device, the maintenance cost of equipment is reduced, and the practicability of the device is improved; comprising a filtering device, a vibration device, a pollution discharge device and a cleaning device, the vibration device is installed on the filtering device, the pollution discharge device is connected with the filtering device, and the cleaning device is installed in the filtering device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of waste heat recovery, particularly relates to a biomass boiler waste gas waste heat recovery condensing device. BACKGROUND

[0002] Biomass boiler is a kind of boiler, and the boiler using biomass energy as fuel is called biomass boiler, which is divided into biomass steam boiler, biomass hot water boiler, biomass hot blast furnace, biomass heat conduction oil furnace, vertical biomass boiler and horizontal biomass boiler;The boiler adopts the most suitable combustion equipment for biomass fuel combustion, reciprocating grate;Compared with traditional boiler, the boiler has larger furnace space in structural design, and the secondary air is arranged very reasonably, which is beneficial to the combustion of a large amount of volatile matter instantaneously released during biomass fuel combustion.

[0003] The prior art CN201920429358.4 relates to a biomass fuel boiler waste heat condensation recovery device, which comprises a recovery tank, a water pump, a return pipe, an air outlet pipe, a steam cavity, a controller, a work box, a water level sensor, a boiler body and a heat dissipation pipe, etc., which can increase the temperature of the inlet water, reduce the supply of combustion raw materials and improve the utilization efficiency of combustion energy.

[0004] However, in actual use, the waste gas generated by the biomass boiler contains a large amount of dust, and direct condensation of the waste gas will cause blockage in the condensing pipeline, affecting the heat exchange efficiency of the equipment and increasing the maintenance cost. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a biomass boiler waste gas waste heat recovery condensing device, which can filter the impurities contained in the boiler waste gas and then condense and exchange heat, reduce the adhesion of dirt on the filter device by driving the filter device to vibrate by the vibration device, maintain the filtering efficiency and gas passing rate of the filter device, collect and discharge the dirt filtered by the filter device by the dirt discharging device, and clean the filter device by the cleaning device, thereby reducing the maintenance cost of the equipment and improving the practicability of the device.

[0006] The utility model discloses a kind of biomass boiler waste gas waste heat recovery condensing devices;Including filtering device, vibration device, blowdown device and cleaning device, vibration device is installed on filtering device, blowdown device is connected with filtering device, cleaning device is installed in filtering device;After filtering the sundries mixed in boiler flue gas by filtering device, condensation heat exchange is carried out, filtering device is vibrated by vibration device, reduce the dirt adhered on filtering device, maintain the filtration efficiency and gas through rate of filtering device, dirt filtered out by blowdown device to filtering device is collected and discharged, filtering device is cleaned by cleaning device, reduce the maintenance cost of equipment, improve the practicality of device.

[0007] Preferably, the filtering device includes a condensation heat exchanger, a flange connecting disc, a filter bin, and a filter screen. The filter bin is connected to the hot gas input end of the condensation heat exchanger through the flange connecting disc. The filter screen is installed obliquely in the left part of the filter bin. The condensation heat exchanger completes the condensation and heat exchange of waste heat, thereby recovering the heat in the boiler combustion flue gas. The flange connecting disc facilitates the disassembly and maintenance of the filter bin. The filter screen filters the dirt in the gas. The oblique installation of the filter screen increases the effective area of the filter screen, thereby improving the practicality of the device.

[0008] Preferably, the vibration device includes a mounting plate, a vibration rod, a fixing bolt, and a vibration motor. The mounting plate is located at the back side of the filter bin. Two groups of vibration rods are connected to the front end surface of the mounting plate. The two groups of vibration rods are inserted into the filter bin and located at the right side of the filter screen, tightly contacting the right end surface of the filter screen. The mounting plate is installed on the back end surface of the filter bin through the fixing bolt. The vibration motor is installed on the back end surface of the mounting plate. The vibration motor transmits power to the two groups of vibration rods through the mounting plate. The two groups of vibration rods vibrate the filter screen, thereby accelerating the falling of the dirt adhered to the left end surface of the filter screen. This ensures the filtering effect of the filter screen and improves the practicality of the device.

[0009] Preferably, the device comprises a three-way pipe, a drain pipe, a spiral blade, a support frame, a speed reducer and a sewage collection bin, the input end of the filter bin is connected with the three-way pipe, the side output end of the three-way pipe is connected with the drain pipe, the lower end surface of the drain pipe is installed with the speed reducer, the output end of the speed reducer extends to the inside of the drain pipe through the lower end surface of the drain pipe and is connected with the spiral blade, the upper part of the spiral blade is connected with the upper part of the drain pipe through the support frame, the side lower part of the drain pipe is connected with the sewage collection bin, the lower end surface of the sewage collection bin is provided with a discharge port, and the discharge port is provided with a valve; the dirt shaken off from the filter screen falls into the drain pipe through the three-way pipe, then the speed reducer is started to transmit power to the spiral blade to drive the spiral blade to rotate, thereby conveying the dirt to the sewage collection bin for storage, and the valve on the lower end surface of the sewage collection bin is opened regularly to discharge the sewage, thereby reducing the influence of the solid dirt entering the condensing heat exchanger on the smoothness of the condensing heat pipe, reducing the residue of the dirt in the waste gas conveying pipe, and improving the practicability of the device.

[0010] Preferably, the cleaning device comprises an electric cylinder, a horizontal moving platform, a spray head and a spring pipe, the lower part of the end surface of the filter bin is installed with the electric cylinder, the moving end of the electric cylinder extends to the inside of the filter bin through the right end surface of the filter bin and is connected with the horizontal moving platform, the upper end surface of the horizontal moving platform is installed with a plurality of spray heads in a slope, the right end surface of the horizontal moving platform is connected with the spring pipe, the input end of the spring pipe is in communication with the outside of the filter bin, and the output end of the spring pipe is connected with the plurality of spray heads; the horizontal moving platform is driven to move left and right by controlling the electric cylinder to stretch and retract, the cleaning liquid is sent into the spray head through the spring pipe and sprayed out, the filter screen is cleaned, the dirt adhered to the filter screen is reduced, the practicability of the device is improved, the sewage flows into the sewage collection bin through the three-way pipe, the backflow of the sewage to the inside of the boiler is prevented to affect the working stability of the boiler, the spring pipe moves with the horizontal moving platform, and the practicability of the device is improved.

[0011] Preferably, the device further comprises a pressure sensor, and the left end surface of the filter bin is installed with the pressure sensor; the left part pressure in the filter bin is monitored through the pressure sensor, so that the operator can know the input pressure in real time, the cleaning device is controlled to clean the filter screen, the rate of airflow passing through is ensured, and the practicability of the device is improved.

[0012] Preferably, the device further comprises a quick connector, and the right end surface of the filter bin is installed with the quick connector, and the quick connector is connected with the input end of the spring pipe; the quick connector installed on the right end surface of the filter bin is convenient for the high-pressure pipeline outside to be quickly connected with and disconnected from the spring pipe, and the practicability of the device is improved.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: the filter device is vibrated by the vibration device, the dirt adhered on the filter device is reduced, the filtering efficiency and the gas passing rate of the filter device are maintained, the dirt filtered out by the filter device is collected and discharged by the dirt discharging device, the filter device is cleaned by the cleaning device, the maintenance cost of the equipment is reduced, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first axonometric structure schematic view of the utility model, and

[0015] Figure 2 It is the second axonometric structure schematic view of the utility model, and

[0016] Figure 3 It is the first cross section structure schematic view of the utility model, and

[0017] Figure 4 It is the second cross section structure schematic view of the utility model, and

[0018] Markings in the drawing: 1, condensing heat exchanger, 2, flange connecting disc, 3, filter bin, 4, filter screen, 5, mounting plate, 6, vibrating rod, 7, fixed bolt, 8, vibration motor, 9, tee pipe, 10, dirt discharging pipe, 11, spiral blade, 12, support frame, 13, speed reducer motor, 14, dirt collecting bin, 15, electric cylinder, 16, transverse moving platform, 17, spray head, 18, spring tube, 19, pressure sensor, 20, quick coupling. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] EMBODIMENT

[0021] As Figure 1 , Figure 2 , Figure 3 and Figure 4 Indicated that the vibration device was installed on the filter device, the dirt discharging device was installed on the filter device, and the cleaning device was installed on the filter device.

[0022] First open the vibration motor 8 will power through the mounting plate 5 transmission to two groups of vibration rod 6, two groups of vibration rod 6 driven by the vibration of the filter screen 4, thereby accelerating the left end of the filter screen 4 adhering to the dirt fall, regularly open the speed reducer 13 will power transmission to the spiral blade 11 driven spiral blade 11 rotation, thereby the dirt into the storage of the collection of sewage bin 14, regularly open the sewage bin 14 lower end of the valve on the sewage, through the pressure sensor 19 on the left part of the filter bin 3 air pressure monitoring, for the operator to understand the input air pressure in real time, when the air pressure reaches the maximum preset value control electric cylinder 15 telescopic driven horizontal platform 16 left and right movement, through the spring pipe 18 will clean the liquid into the nozzle 17 spray, on the filter screen 4 cleaning, reduce the filter screen 4 on the dirt can be adhered to;

[0023] The filter device comprises a condensing heat exchanger 1, a flange connecting disc 2, a filter bin 3 and a filter screen 4, the filter bin 3 is connected to the hot gas input end of the condensing heat exchanger 1 through the flange connecting disc 2, and the filter screen 4 is obliquely arranged in the left part of the filter bin 3;

[0024] The vibration device comprises a mounting plate 5, vibration rods 6, fixing bolts 7 and a vibration motor 8, the mounting plate 5 is located at the rear side of the filter bin 3, two groups of vibration rods 6 are connected to the front end face of the mounting plate 5, the two groups of vibration rods 6 are inserted into the filter bin 3 and located at the right side of the filter screen 4 and close to the right end face of the filter screen 4, the mounting plate 5 is installed on the rear end face of the filter bin 3 through the fixing bolts 7, and the vibration motor 8 is installed on the rear end face of the mounting plate 5;

[0025] The sewage discharge device comprises a three-way pipe 9, a sewage pipe 10, a spiral blade 11, a support frame 12, a speed reducer 13 and a sewage collection bin 14, the three-way pipe 9 is connected to the input end of the filter bin 3, the sewage pipe 10 is connected to the side output end of the three-way pipe 9, the speed reducer 13 is installed on the lower end face of the sewage pipe 10, the output end of the speed reducer 13 extends to the inside of the sewage pipe 10 through the lower end face of the sewage pipe 10 and is connected with the spiral blade 11, the upper part of the spiral blade 11 is connected with the upper part of the sewage pipe 10 through the support frame 12, the sewage collection bin 14 is connected to the lower part of the side face of the sewage pipe 10, a discharge port is arranged on the lower end face of the sewage collection bin 14, and a valve is arranged on the discharge port;

[0026] The cleaning device comprises an electric cylinder 15, a horizontal platform 16, nozzles 17 and a spring pipe 18, the electric cylinder 15 is installed on the right end face of the filter bin 3, the moving end of the electric cylinder 15 extends to the inside of the filter bin 3 through the right end face of the filter bin 3 and is connected with the horizontal platform 16, a plurality of nozzles 17 are obliquely installed on the upper end face of the horizontal platform 16, the spring pipe 18 is connected to the right end face of the horizontal platform 16, the input end of the spring pipe 18 communicates with the outside of the filter bin 3, and the output end of the spring pipe 18 is connected with the plurality of nozzles 17;

[0027] Further comprising pressure sensor 19, the left end surface upper portion of filter cabin 3 is provided with pressure sensor 19;

[0028] Further comprising quick connector 20, the right end surface of filter cabin 3 is provided with quick connector 20, and the input end of spring pipe 18 is connected with quick connector 20;

[0029] The impurities in the boiler exhaust gas are filtered by the filtering device, and then the condensation heat exchange is carried out, the filtering device is vibrated by the vibration device, the adhered dirt on the filtering device is reduced, the filtering efficiency and the gas passing rate of the filtering device are maintained, the dirt filtered out by the filtering device is collected and discharged by the dirt discharging device, and the filtering device is cleaned by the cleaning device, so that the maintenance cost of the equipment is reduced, and the practicability of the device is improved.

[0030] As shown in Figures 1 to 4 The biomass boiler exhaust gas waste heat recovery condensing device of the utility model, when working, first opens vibration motor 8 to transmit power to two groups of vibration rods 6 through mounting plate 5, and the two groups of vibration rods 6 drive filter screen 4 to vibrate, so that the dirt adhered to the left end surface of filter screen 4 falls off, regularly opens speed reducer motor 13 to transmit power to helical blade 11 to drive helical blade 11 to rotate, so that the dirt is transported to storage in dirt collecting bin 14, regularly opens the valve on the lower end surface of dirt collecting bin 14 to discharge dirt, monitors the left part pressure in filter cabin 3 through pressure sensor 19, so that the operator can know the input pressure in real time, when the pressure reaches the maximum preset value, controls electric cylinder 15 to extend and retract to drive horizontal moving platform 16 to move left and right, sends cleaning liquid into nozzle 17 through spring pipe 18 to spray out, washes filter screen 4, and the dirt adhered to filter screen 4 can be reduced.

[0031] The electric cylinder 15, pressure sensor 19, vibration motor 8 and speed reducer motor 13 of the biomass boiler exhaust gas waste heat recovery condensing device of the utility model are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0032] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, without departing from the technical principle of the utility model, a plurality of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. A biomass boiler exhaust gas waste heat recovery condensing device; characterized in that, The utility model relates to a filter device, which comprises a filtering device, a vibrating device, a blowdown device and a cleaning device.

2. A biomass boiler exhaust gas waste heat recovery condensing device according to claim 1, characterized in that, The filtering device comprises a condensing heat exchanger (1), a flange connecting disc (2), a filtering bin (3) and a filter screen (4).

3. A biomass boiler flue gas waste heat recovery condenser as claimed in claim 2, wherein, The vibrating device comprises a mounting plate (5), vibrating rods (6), fixing bolts (7) and a vibrating motor (8).

4. A biomass boiler flue gas waste heat recovery condenser according to claim 3, wherein, The blowdown device comprises a tee pipe (9), a blowdown pipe (10), helical blades (11), a support frame (12), a speed reducer (13) and a collecting bin (14).

5. A biomass boiler flue gas waste heat recovery condenser as claimed in claim 4, wherein, The cleaning device comprises an electric cylinder (15), a horizontal moving platform (16), spray heads (17) and spring pipes (18).

6. A biomass boiler flue gas waste heat recovery condenser as claimed in claim 5, wherein, A pressure sensor (19) is further included and installed on the upper left end face of the filtering bin (3).

7. A biomass boiler flue gas waste heat recovery condenser as claimed in claim 6, wherein, A quick connector (20) is further included and installed on the right end face of the filtering bin (3) and connected to the input end of the spring pipe (18).

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