WO2022057151A1 - Drainage apparatus of air preheater of automatic heating furnace - Google Patents

Abstract

A drainage apparatus of an air preheater of an automatic heating furnace. The drainage apparatus comprises a preheater body (1), an air outlet pipeline (2), an air inlet pipeline (3), a limiting frame (4), a detachable fan mounting frame structure (5), a supporting rod (6), an air inlet fan (7), a condensate water filtering frame structure (8), a left side connecting pipe (9), a switch valve (10), a right side connecting pipe (11), a sealing tank (12), a water pump (13), a manual control frame structure (14), an automatic water level detection frame structure (15), clean water (16), and a control box (17); and the air outlet pipeline (2) is in bolted connection with the upper portion of the left side of the preheater body (1). The drainage apparatus is conducive to convenient and automatic control of the water level inside the sealing tank (12), and the situation that the water level inside the sealing tank (12) is too high or too low and consequently the collecting effect of condensate water or the sealing effect on the inside of the preheater body (1) is affected is prevented.

Description

Drainage equipment for air preheater of automatic heating furnace technical field

The invention belongs to the technical field of auxiliary equipment for preheaters, and in particular relates to a drainage device for an air preheater of an automatic heating furnace.

Background technique

It is to use the flue gas in the tail flue of the boiler to preheat the air before entering the boiler to the heating surface of a certain temperature through the internal heat sink. It is used to improve the heat exchange performance of the boiler and reduce the energy consumption. Generally referred to as the air preprocessor.

However, the existing drainage equipment of the air preheater of the automatic heating furnace still has the problems that the condensed water cannot be automatically discharged, the sundries in the condensed water cannot be filtered, and the normal operation of the drainage equipment is easily affected when the power is cut off.

Therefore, it is very necessary to invent a drainage device for the air preheater of an automatic heating furnace.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the present invention provides a drainage device for the air preheater of an automatic heating furnace, so as to solve the problem that the existing drainage device of the air preheater of an automatic heating furnace cannot automatically discharge the condensed water, and cannot remove the impurities in the condensed water. It is easy to affect the normal operation of the drainage equipment when the material is filtered and the power is cut off. A drainage device for an air preheater of an automatic heating furnace, comprising a preheater main body, an air outlet pipe, an air inlet pipe, a limit frame, a detachable fan mounting frame structure, a support rod, an air inlet fan, and a condensate water filter frame structure, The left connecting pipe, the switch valve, the right connecting pipe, the sealing tank, the water pump, the manual control frame structure, the automatic water level detection frame structure, the clean water and the control box, the air outlet pipe is bolted on the upper left side of the preheater body ; The air intake duct is bolted to the lower left side of the preheater body; the limit frame is welded on the left side of the air intake duct; the detachable fan mounting frame structure is installed on the left side of the air intake duct The support rods are respectively arranged on the upper and lower parts of the inner side of the detachable fan mounting frame structure; the air inlet fan is bolted on the inner side of the support rods; the condensate water filter frame structure is installed on the main body of the preheater The lower part of the connecting pipe on the left side; the connecting pipe on the left side is installed on the lower part of the condensate water filter frame structure; the switching valve is bolted on the right side of the connecting pipe on the left side; side; the sealing tank is sleeved on the lower part of the outer side of the right connecting pipe, and the upper part is connected with the right connecting pipe with bolts; the water pump is bolted on the upper right side of the sealing tank; the manual control frame is structurally installed On the left side of the airtight tank; the automatic water level detection frame structure is arranged on the right side of the airtight tank; the clean water is placed in the lower part of the inner side of the airtight tank; the control box is arranged on the right side of the automatic water level detection frame structure The middle position; the structure of the automatic water level detection frame includes a water level detection pipe, an I-shaped frame, a mounting plate, a water level sensor, a connecting pipe and a cut-off valve, and the I-shaped frame is respectively bolted on the left side of the water level detection pipe. The mounting plate is screwed on the inner right side of the water level detection pipe; the water level sensor is screwed on the upper and lower parts of the left side of the mounting plate and the middle position of the left side of the mounting plate; the connecting pipe thread It is connected to the lower left side of the water level detection pipe; the cut-off valve is threadedly connected to the outer middle position of the communication pipe.

Preferably, the manual control frame structure includes a water level observation pipe, an upper water pipe, a lower water pipe, an observation window, a water outlet valve and a water inlet pipe, and the upper water pipe is threadedly connected to the upper part of the right side of the water level observation pipe; The lower side water pipe is threadedly connected to the lower part of the right side of the water level observation pipe; the observation window is embedded in the front end of the water level observation pipe; the water outlet valve screw is connected to the lower part of the water level observation pipe; the water inlet pipe is screwed to connect In the upper part of the water level observation pipe, and communicated with the inner side of the water level observation pipe.

Preferably, the condensed water filter frame structure includes a funnel, a bolt connection ring, a water storage tank, a debris filter frame, a box cover and a handle, and the bolt connection ring is welded on the upper part of the funnel; the water storage tank is connected by bolts. at the lower part of the funnel; the debris filter frame is screwed on the inner lower part of the water storage tank; the box cover is screwed on the left and right sides of the lower part of the water storage tank; the handle is welded on the box cover away from the water storage tank. side.

Preferably, the detachable fan mounting frame structure includes a mounting frame, a triangular plate, a dust-proof net, an air collecting cover, an L-shaped clamping plate, a clamping bolt and a rubber ring, and the triangular plate is welded on the left side of the mounting frame; The dust-proof net is screwed on the left side of the triangular plate; the air collecting cover is bolted on the right side of the installation frame; the L-shaped clamping plate is bolted on the upper and lower parts of the right side of the air collecting cover; The clamping bolt is threadedly connected on the right side of the L-shaped clamping plate; the rubber ring is glued on the right side of the air collecting hood.

Preferably, the right connecting pipe extends to the lower part of the inner side of the clean water, the sealing tank is threadedly connected to the lower part of the solenoid valve, the inlet of the water pump is sleeved with a water inlet hose, and the water outlet of the water pump is connected to the seal The inner side of the tank communicates.

Preferably, a single-chip microcomputer is installed on the inner left side of the control box, and buttons are connected with screws on the right side of the front end of the control box.

Preferably, the I-frame is bolted to the upper and lower parts of the right side of the sealing tank, and the left side of the communication pipe is screwed to the right side of the sealing tank and communicated with the inner side of the sealing tank. The control box is bolted to the right middle of the mounting plate.

Preferably, the upper water pipe screw is connected to the upper left side of the sealing tank, the lower water pipe screw is connected to the left lower part of the sealing tank, and the front end of the observation window is marked with a scale line.

Preferably, the left upper part of the left connecting pipe is bolted to the lower part of the water storage tank, and the inner side is connected with the water storage tank, and the sundries filter frame is arranged on the left upper part of the left connecting pipe.

Preferably, the bolt connection ring is bolted to the lower part of the preheater body, and the inner side of the funnel communicates with the inner side of the preheater body.

Preferably, the limiting frame is arranged on the inner side of the L-shaped card plate, and the left side is fitted with the rubber ring, and the support rods are respectively bolted to the upper and lower parts of the inner side of the installation frame.

Preferably, the water level sensor and the button are respectively electrically connected to the microcontroller, and the solenoid valve and the water pump are electrically connected to the microcontroller respectively.

Preferably, the water level sensor specifically adopts a sensor with a model of T3000, the single-chip microcomputer specifically adopts a single-chip microcomputer with a model of ATMEGA88PA, and the water pump adopts a water pump with a model of the MK series.

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

1. In the present invention, the setting of the described water level sensor, single-chip microcomputer, water pump and solenoid valve, the water level sensor detects the water level in the memory of the sealed tank, and transmits the signal to the single-chip microcomputer, and the single-chip microcomputer controls the action of the water pump and the solenoid valve, which is conducive to convenience. Automatically control the water level inside the sealing tank to prevent the water level inside the sealing tank from being too high or too low, which affects the collection effect of condensed water or the sealing effect on the inner side of the main body of the preheater.

2. In the present invention, the installation of the installation plate and the cut-off valve is beneficial to the disassembly of the installation plate after the communication pipe is closed, so as to facilitate the staff to remove the water level sensor and the single-chip microcomputer for maintenance respectively, without affecting the The normal use of the device makes the function of the device more perfect.

3. In the present invention, the setting of the water outlet valve and the water inlet pipe, when the workshop is powered off or the water level sensor and the single-chip microcomputer malfunction, the staff manually controls the water level inside the sealed tank by switching the water outlet valve, which is beneficial to the convenience of the equipment. Maintain normal use in an emergency, further increasing the usefulness of the device.

4. In the present invention, the setting of the water level observation pipe and the observation window is beneficial to facilitate the staff to check the water level inside the sealed tank, and cooperate with the water outlet valve and the water inlet pipe to manually control the water level to further improve the use of this equipment. Function.

5. In the present invention, in the setting of the funnel, the water storage tank and the sundry filter rack, the condensed water condenses on the inside of the funnel, and flows down into the water storage tank through the funnel, and the liquid enters the left side through the sundries filter frame. Connecting pipe, the sundries are blocked by the sundry filter frame and stay on the inside of the water storage tank, which is conducive to filtering the sundries in the condensed water, preventing sundries from entering the inner side of the left connecting pipe and the inner side of the right connecting pipe, causing the left side The connecting pipe and the right connecting pipe are blocked, thus affecting the normal use of the equipment.

6. In the present invention, the arrangement of the box cover and the handle is conducive to cleaning the sundries inside the water storage tank. When maintaining the equipment, remove the bolts on the box cover, hold the handle, and remove the box cover. Remove it, take out the debris inside the water storage tank, and perform maintenance on the water storage tank.

7. In the present invention, the setting of the limit frame, the L-shaped card plate, the clamping bolt and the rubber ring, loosening the clamping bolt and pulling the installation frame forward is beneficial to the convenience of the staff to install the detachable fan mounting frame. When the whole structure is disassembled, the air inlet fan can be repaired, and the external equipment can be connected to the air inlet duct.

8. In the present invention, the setting of the triangular plate and the dust-proof net is beneficial to prevent dust from entering the inside of the installation frame, and the inclined dust-proof net can make the dust fall down, reduce the cleaning times of the dust-proof net, and prolong the operation time of the dust-proof net. The service life of the dust filter can save the maintenance cost of the dust filter.

9. In the present invention, the setting of the on-off valve and the clean water is conducive to sealing the inner side of the right connecting pipe, so as to seal the inner side of the main body of the preheater and prevent the lower part of the inner side of the main body of the preheater from being in External communication affects the normal operation of the main body of the preheater, and at the same time, it does not require the staff to handle the condensed water manually.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the structure of the automatic water level detection frame of the present invention.

FIG. 3 is a schematic structural diagram of the manual control frame structure of the present invention.

4 is a schematic structural diagram of the condensed water filter frame structure of the present invention.

5 is a schematic structural diagram of the detachable fan mounting frame structure of the present invention

Figure 6 is an electrical logic diagram of the present invention.

In the picture:

1. Main body of preheater; 2. Outlet pipe; 3. Intake pipe; 4. Limit frame; 5. Removable fan mounting frame structure; 51. Installation frame; 52. Triangular plate; Air collecting hood; 55, L-shaped card plate; 56, clamping bolt; 57, rubber ring; 6, support rod; 7, air inlet fan; 8, condensate water filter frame structure; 81, funnel; 82, bolt connection ring ;83, water storage tank; 84, debris filter rack; 85, box cover; 86, handle; 9, left connecting pipe; 10, switch valve; 11, right connecting pipe; 12, sealing tank; 121, solenoid valve ; 13, water pump; 131, water inlet hose; 14, manual control frame structure; 141, water level observation pipe; 142, upper water pipe; 143, lower water pipe; 144, observation window; 145, water outlet valve; 146, inlet Water pipe; 15. Structure of automatic water level detection frame; 151, Water level detection pipe; 152, I-shaped frame; 153, Mounting plate; 154, Water level sensor; 155, Connecting pipe; 156, Cut-off valve; 16, Clear water; ; 171, microcontroller; 172, button.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings:

Example:

As shown in Figures 1 and 2, a drainage device for an air preheater of an automatic heating furnace includes a preheater body 1, an air outlet duct 2, an air inlet duct 3, a limit frame 4, and a detachable fan mounting frame Structure 5, support rod 6, air intake fan 7, condensate filter frame structure 8, left connecting pipe 9, switch valve 10, right connecting pipe 11, sealing tank 12, water pump 13, manual control frame structure 14, automatic water level The detection frame structure 15, the clean water 16 and the control box 17, the outlet pipe 2 is bolted to the upper left side of the preheater main body 1; the intake pipe 3 is bolted to the lower left side of the preheater main body 1 The described limit frame 4 is welded on the left side of the intake duct 3; the detachable fan mounting frame structure 5 is installed on the left side of the intake duct 3; the described support rods 6 are respectively arranged on the detachable fan The inner side of the mounting frame structure 5 is upper and lower; the air inlet fan 7 is bolted to the inner side of the support rod 6; the condensed water filter frame structure 8 is installed at the lower part of the preheater main body 1; the left side The connecting pipe 9 is installed at the lower part of the condensate water filter frame structure 8; the on-off valve 10 is bolted to the right side of the left-side connecting pipe 9; the right-side connecting pipe 11 is bolted to the right side of the on-off valve 10; The sealing tank 12 is sleeved on the lower part of the outer side of the right connecting pipe 11, and the upper part is connected with the right connecting pipe 11 by bolts; the water pump 13 is bolted on the upper right side of the sealing tank 12; the manual control The frame structure 14 is installed on the left side of the sealing tank 12; the automatic water level detection frame structure 15 is arranged on the right side of the sealing tank 12; the clean water 16 is placed on the inner lower part of the sealing tank 12; the control box 17 It is arranged in the middle position on the right side of the automatic water level detection frame structure 15; the automatic water level detection frame structure 15 includes a water level detection pipe 151, an I-shaped frame 152, a mounting plate 153, a water level sensor 154, a communication pipe 155 and a cut-off valve 156, The I-shaped frame 152 is respectively bolted to the upper and lower left sides of the water level detection pipe 151; the mounting plate 153 is screwed to the inner right side of the water level detection pipe 151; the water level sensor 154 is screwed to the The upper and lower parts of the left side of the mounting plate 153 and the middle position of the left side of the mounting plate 153; the connecting pipe 155 is threadedly connected to the lower left side of the water level detection pipe 151; The outer middle position; the clean water 16 in the sealed tank 12 enters the inner side of the water level detection pipe 151 through the communication pipe 155. When the water level reaches the water level sensor 154 at the bottom, the water pump 13 is started, and the inner side of the sealed tank 12 is filled with water to prevent the water level from being low. For the right connecting pipe 11, the sealing performance of the right connecting pipe 11 is affected, and when the water level reaches the uppermost water level sensor 154, the water inside the sealed tank 12 is released.

As shown in FIG. 3 , in the above embodiment, specifically, the manual control frame structure 14 includes a water level observation pipe 141 , an upper water pipe 142 , a lower water pipe 143 , an observation window 144 , a water outlet valve 145 and a water inlet pipe 146 , the upper water pipe 142 is threadedly connected to the upper right side of the water level observation pipe 141; the lower water pipe 143 is threadedly connected to the lower right side of the water level observation pipe 141; the observation window 144 is embedded in the water level observation pipe The front end of 141; the water outlet valve 145 is screwed to the lower part of the water level observation pipe 141; the water inlet pipe 146 is screwed to the upper part of the water level observation pipe 141, and communicated with the inside of the water level observation pipe 141; the water inlet pipe 146 Connected with the external water source valve, the clean water 16 enters the inside of the water level observation pipe 141 through the lower water pipe 143, and the staff can check the water level inside the sealed tank 12 through the observation window 144. When the water level is too high, open the water outlet valve 145, and The clean water 16 is discharged, and when the water level reaches the bottom, the external water source valve is opened, and the external water source enters the inner side of the sealed tank 12 through the water level observation pipe 141 and the lower water pipe 143 .

As shown in FIG. 4 , in the above embodiment, specifically, the condensed water filter frame structure 8 includes a funnel 81 , a bolt connection ring 82 , a water storage tank 83 , a debris filter frame 84 , a box cover 85 and a handle 86 , The bolt connection ring 82 is welded to the upper part of the funnel 81; the water storage tank 83 is bolted to the lower part of the funnel 81; The cover 85 is screwed on the lower left and right sides of the water storage tank 83 respectively; the handle 86 is welded on the side of the box cover 85 away from the water storage tank 83; the condensed water falls to the inner side of the water storage tank 83 through the funnel 81, and the condensed water passes through The debris filter rack 84 flows into the left connecting pipe 9, the debris in the condensed water is blocked by the debris filter rack 84, and stored in the inner side of the water storage tank 83, remove the screws on the tank cover 85, hold the handle 86, Remove the tank cover 85, and then clean the debris inside the water storage tank 83.

As shown in FIG. 5 , in the above embodiment, specifically, the detachable fan mounting frame structure 5 includes a mounting frame 51 , a triangular plate 52 , a dust filter 53 , an air collecting cover 54 , an L-shaped card plate 55 , a clip Tighten bolts 56 and rubber rings 57, the triangular plate 52 is welded on the left side of the installation frame 51; the dustproof net 53 is screwed on the left side of the triangular plate 52; the air collecting cover 54 is bolted on the installation frame 51; the L-shaped clamping plate 55 is bolted to the upper and lower parts of the right side of the air collecting hood 54; the clamping bolt 56 is threadedly connected to the right side of the L-shaped clamping plate 55; the The rubber ring 57 is glued on the right side of the air collecting cover 54; loosen the clamping bolt 56, and pull the installation frame 51 forward to facilitate the disassembly and maintenance of the air inlet fan 7 by the staff, and the outside air enters the installation through the dustproof net 53 In the frame 51 , the inclined dustproof net 53 can guide the dust to the lower part, thereby reducing the cleaning times of the dustproof net 53 .

In the above embodiment, specifically, the right connecting pipe 11 extends to the lower part of the inner side of the clean water 16, the sealing tank 12 is threadedly connected to the lower part of the solenoid valve 121, and the inlet of the water pump 13 is sleeved with an inlet. The water hose 131 and the water outlet of the water pump 13 communicate with the inner side of the sealed tank 12 .

In the above embodiment, specifically, a single chip 171 is installed on the left side of the control box 17 , and a button 172 is screwed on the right side of the front end of the control box 17 .

In the above embodiment, specifically, the I-shaped frame 152 is bolted to the upper and lower parts of the right side of the airtight tank 12, and the left side of the communication pipe 155 is screwed to the right side of the airtight tank 12, and is connected to the right side of the airtight tank 12. The inner side of the sealing tank 12 is communicated, and the control box 17 is bolted to the middle position of the right side of the mounting plate 153 .

In the above embodiment, specifically, the upper water pipe 142 is screwed to the upper left side of the sealing tank 12, the lower water pipe 143 is screwed to the lower left side of the sealing tank 12, and the observation window 144 The front end is marked with tick marks.

In the above embodiment, specifically, the upper left side of the left connecting pipe 9 is bolted to the lower part of the water storage tank 83, and the inner side is communicated with the water storage tank 83, and the sundries filter frame 84 is provided on the left side to connect. Upper left of tube 9.

In the above embodiment, specifically, the bolt connection ring 82 is bolted to the lower part of the preheater main body 1 , and the inner side of the funnel 81 communicates with the inner side of the preheater main body 1 .

In the above embodiment, specifically, the limiting frame 4 is arranged on the inner side of the L-shaped card plate 55, and the left side is attached to the rubber ring 57, and the supporting rods 6 are respectively bolted to the inner side of the mounting frame 51. Two parts up and down.

In the above-mentioned embodiment, specifically, the water level sensor 154 and the button 172 are respectively electrically connected to the microcontroller 171 , and the solenoid valve 121 and the water pump 13 are electrically connected to the microcontroller 171 respectively.

In the above embodiment, specifically, the water level sensor 154 is a T3000 sensor, the single chip microcomputer 171 is a single chip ATMEGA88PA, and the water pump 13 is a MK series water pump.

working principle

The working principle of the present invention: when using, first put the water inlet hose 131 into the external water source, connect the left side of the water inlet pipe 146 to the external water source valve, press the button 172, and then bolt the air outlet pipe 2 to the air inlet pipe of the heating furnace Connection, the air inlet fan 7 rotates, the outside air enters the installation frame 51 through the dustproof net 53, and then enters the preheater body 1 through the air collecting cover 54 for preheating. When connecting the external equipment, loosen the clamping bolts 56, move the mounting frame 51 forward, remove the detachable fan mounting frame structure 5 as a whole from the left side of the intake duct 3, and then remove the exhaust duct 2 and the intake duct 3. They are respectively bolted to external equipment, and the preheater main body 1 heats the gas. The temperature difference between the upper and lower sides of the preheater main body 1 is large, and it is easy to form condensed water in the lower part. Flowing down, the condensed water flows into the left connecting pipe 9 through the debris filter rack 84, the debris in the condensed water is blocked by the debris filter rack 84, and stored in the inner side of the water storage tank 83, open the switch valve 10, the left side The condensed water in the connecting pipe 9 enters the inner side of the sealing tank 12 through the switch valve 10 and the right connecting pipe 11, and the clean water 16 seals the lower part of the right connecting pipe 11 to prevent the outside air from entering the preheating through the right connecting pipe 11 In the main body 1 of the preheater, the normal operation of the main body 1 of the preheater is affected, and the condensed water continuously enters the sealing tank 12, so that the water level of the clean water 16 continues to rise. When the upper water level sensor 154 is on, the single chip 171 controls the solenoid valve 121 to open, and the clean water 16 is released until the water level is at the middle water level sensor 154, and the solenoid valve 121 is closed. When the water level reaches the lowermost water level sensor 154, the single chip 171 controls the water pump. 13 is started, and the external water source is sucked into the inner side of the sealed tank 12 through the water inlet hose 131 until the water level sensor 154 at the middle position, and the water pump 13 is turned off. Valve 156, clean water 16 enters the inner side of the water level observation pipe 141 through the lower water pipe 143, the staff can check the water level inside the sealed tank 12 through the observation window 144, when the water level is too high, open the water outlet valve 145, and release the clean water 16 , when the water level reaches the bottom, open the external water source valve, the external water source enters the inner side of the sealed tank 12 through the water level observation pipe 141 and the lower water pipe 143, which is convenient for the staff to manually control it, and the installation plate 153 is removed to facilitate the water level. The sensor 154 and the single-chip microcomputer 171 are repaired. When the equipment is shut down for maintenance, the screws on the box cover 85 are removed, the handle 86 is held, and the box cover 85 is removed, and then the sundries inside the water storage tank 83 are cleaned.

Using the technical solutions described in the present invention, or those skilled in the art design similar technical solutions under the inspiration of the technical solutions of the present invention, and achieve the above technical effects, all fall within the protection scope of the present invention.

Claims (10)

A drainage device for an air preheater of an automatic heating furnace, characterized in that the drainage device for the air preheater of an automatic heating furnace comprises a preheater main body (1), an air outlet pipe (2), and an air intake pipe (3) , limit frame (4), detachable fan mounting frame structure (5), support rod (6), air intake fan (7), condensate water filter frame structure (8), left connecting pipe (9), switch valve (10), right connecting pipe (11), sealing tank (12), water pump (13), manual control frame structure (14), automatic water level detection frame structure (15), clean water (16) and control box (17) , the outlet pipe (2) is bolted on the upper left side of the preheater main body (1); the intake pipe (3) is bolted on the lower left side of the preheater main body (1); the The limiting frame (4) is welded on the left side of the intake duct (3); the detachable fan mounting frame structure (5) is mounted on the left side of the intake duct (3); the support rod (6) ) are respectively arranged on the upper and lower parts of the inner side of the detachable fan mounting frame structure (5); the air inlet fan (7) is bolted to the inner side of the support rod (6); the condensate water filter frame structure (8) Installed on the lower part of the preheater main body (1); the left connecting pipe (9) is installed on the lower part of the condensate water filter frame structure (8); the on-off valve (10) is bolted to the left connecting pipe The right side of (9); the right connecting pipe (11) is bolted to the right side of the switch valve (10); the sealing tank (12) is sleeved on the lower part of the outer side of the right connecting pipe (11). , and the upper part is bolted to the right connecting pipe (11); the water pump (13) is bolted to the upper right side of the airtight tank (12); the manual control frame structure (14) is installed in the airtight tank (12). ) on the left side; the automatic water level detection frame structure (15) is arranged on the right side of the airtight tank (12); the clean water (16) is placed in the lower part of the inner side of the airtight tank (12); the control box (17) is arranged in the middle position on the right side of the automatic water level detection frame structure (15); the automatic water level detection frame structure (15) includes a water level detection pipe (151), an I-shaped frame (152), and a mounting plate (153) , the water level sensor (154), the connecting pipe (155) and the shut-off valve (156), the I-frame (152) is bolted to the upper and lower left sides of the water level detection pipe (151) respectively; the mounting plate (153) is screwed to the inner right side of the water level detection pipe (151); the water level sensor (154) is screwed to the upper and lower left sides of the mounting plate (153) and the middle of the left side of the mounting plate (153) respectively. position; the connecting pipe (155) is threadedly connected to the lower left side of the water level detection pipe (151); the shut-off valve (156) is threadedly connected to the outer middle position of the connecting pipe (155). The drainage device for an air preheater of an automatic heating furnace according to claim 1, wherein the manual control frame structure (14) comprises a water level observation pipe (141), an upper water pipe (142), and a lower water pipe (143), observation window (144), water outlet valve (145) and water inlet pipe (146), the upper water pipe (142) is threadedly connected to the upper right side of the water level observation pipe (141); the lower side The water pipe (143) is threadedly connected to the lower right side of the water level observation pipe (141); the observation window (144) is embedded in the front end of the water level observation pipe (141); the water outlet valve (145) is screwed to observe the water level The lower part of the pipe (141); the water inlet pipe (146) is screwed on the upper part of the water level observation pipe (141) and communicated with the inner side of the water level observation pipe (141). The drainage device for the air preheater of an automatic heating furnace according to claim 1, characterized in that, the condensed water filter frame structure (8) comprises a funnel (81), a bolt connection ring (82), a water storage tank (83) ), the debris filter frame (84), the box cover (85) and the handle (86), the bolt connection ring (82) is welded on the upper part of the funnel (81); the water storage tank (83) is bolted on the The lower part of the funnel (81); the debris filter frame (84) is screwed to the lower inner side of the water storage tank (83); the box cover (85) is screwed to the left and right sides of the lower part of the water storage tank (83). side; the handle (86) is welded on the side of the tank cover (85) away from the water storage tank (83). The drainage device for the air preheater of an automatic heating furnace according to claim 1, characterized in that, the detachable fan mounting frame structure (5) comprises a mounting frame (51), a triangular plate (52), a dust filter (5). 53), the collecting hood (54), the L-shaped clamping plate (55), the clamping bolt (56) and the rubber ring (57), the triangular plate (52) is welded on the left side of the installation frame (51); The dustproof net (53) is screwed on the left side of the triangular plate (52); the wind collecting cover (54) is screwed on the right side of the mounting frame (51); the L-shaped cardboard (55) The upper and lower parts of the right side of the air collecting cover (54) are bolted respectively; the clamping bolts (56) are threadedly connected to the right side of the L-shaped clamping plate (55); the rubber rings (57) are glued together On the right side of the hood (54). The drainage device for the air preheater of an automatic heating furnace according to claim 1, characterized in that the right connecting pipe (11) extends to the inner lower part of the clean water (16), and the sealing tank (12) The screw is connected to the lower part of the solenoid valve (121), the inlet of the water pump (13) is sleeved with a water inlet hose (131), and the water outlet of the water pump (13) is communicated with the inner side of the sealing tank (12). The drainage device for the air preheater of an automatic heating furnace according to claim 1, wherein a single chip (171) is installed on the left side of the control box (17), and the control box (17) has a A button (172) is screwed on the right side of the front end. The drainage device for the air preheater of an automatic heating furnace according to claim 1, wherein the I-frame (152) is bolted to the upper and lower parts of the right side of the airtight tank (12), respectively. The left side of the communication pipe (155) is screwed on the right side of the sealing tank (12) and communicated with the inner side of the sealing tank (12), and the control box (17) is screwed on the right side of the mounting plate (153) middle place. The drainage device for the air preheater of an automatic heating furnace according to claim 1, characterized in that the upper water pipe (142) is screwed on the upper left side of the sealing tank (12), and the lower water pipe (143) The screw is connected to the lower left side of the airtight tank (12), and the front end of the observation window (144) is engraved with a scale line. The drainage device for the air preheater of an automatic heating furnace according to claim 1, characterized in that, the upper left side of the left side connecting pipe (9) is bolted to the lower part of the water storage tank (83), and the inner side is connected to the lower part of the water storage tank (83). The water storage tank (83) is communicated, and the sundries filter frame (84) is arranged on the upper left part of the left connecting pipe (9). The drainage device for the air preheater of an automatic heating furnace according to claim 1, characterized in that, the bolt connection ring (82) is bolted to the lower part of the preheater main body (1), and the funnel (81) ) communicates with the inner side of the preheater body (1).

Images