CN215723145U

CN215723145U - Tail heat absorption device of saturated steam boiler

Info

Publication number: CN215723145U
Application number: CN202121100552.1U
Authority: CN
Inventors: 杨光明; 姚新华; 杨光芒; 熊灿
Original assignee: Wuhan Xinrong Boiler Manufacturing Co ltd
Current assignee: Wuhan Xinrong Boiler Manufacturing Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-02-01
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a tail heat absorption device of a saturated steam boiler, which comprises a water tank, wherein an air inlet is arranged on one side of the water tank, the air inlet is connected with one end of an air inlet pipe, and the other end of the air inlet pipe is connected with a vent pipe; the upper parts of two adjacent vent pipes are communicated through a connecting cover, the lower parts of the two adjacent vent pipes are communicated through a water pipe fixing seat, the interiors of the connecting cover and the water pipe fixing seat are both of a hollow structure, an air inlet of the vent pipe is connected with the vent pipes, and a sensor is arranged on an air outlet; the lower part of one side of the water tank is provided with a water outlet pipe, the upper part of the water tank is provided with a water inlet pipe, and the water outlet pipe and the water inlet pipe are both provided with electromagnetic valves. The water pipe fixing seat fixed at the bottom of the water tank and the connecting cover connected with the two adjacent ventilating pipes in a sealing mode are arranged, the plurality of ventilating pipes are connected through the water pipe fixing seat and the connecting cover, and the technical effect that the ventilating pipes are convenient to assemble and disassemble with the exhaust pipes, the air inlet pipes and the water pipe fixing seat is achieved.

Description

Tail heat absorption device of saturated steam boiler

Technical Field

The utility model relates to the technical field of heat absorption devices, in particular to a tail heat absorption device of a saturated steam boiler.

Background

In a saturated steam boiler, the heat absorption of the boiler furnace usually accounts for about 60% of the total heat absorption, and the heat absorption of the tail part of the boiler accounts for about 40% of the total heat absorption. In order to avoid the heat loss and waste at the tail part of the steam boiler when in use, a heat absorption device is usually arranged at the tail part of the steam boiler to absorb and recycle the heat. When the tail heat absorption device of the existing saturated steam boiler is used, heat at the tail part is guided into cold water, the cold water is heated through the heat, and then hot water is utilized. The inlet of the existing heat absorption device is connected with the tail end of a steam boiler, and when hot gas enters the heat absorption device, the hot gas can be lost due to poor sealing performance of the connection part, so that heat is lost.

The retrieval shows that China with the publication number of CN212511093U specially facilitates 2021, 2 months and 9 days discloses a steam boiler tail heat absorption device which comprises a heat absorption device main body, an auxiliary structure and a sealing structure, hot air entering an air inlet is guided by a guide plate, so that the hot air can be uniformly dispersed in a heat absorption cavity, the hot air is in more sufficient contact with a heat conduction pipe, the problem of incomplete heat conversion when the existing heat absorption device is used is solved, and the heat absorption effect of the heat absorption device is improved; through the cooperation of the bolt and the nut, the sealing plate is fixed at the joint of the air inlet and the tail outlet, so that the problem that the heat of the joint is easy to dissipate when the existing heat absorption device is used is solved, and the sealing property of the joint of the heat absorption device is improved. It can be seen that the search for a rear heat absorber device for a saturated steam boiler remains an urgent task in the art.

Disclosure of Invention

To overcome the above-mentioned deficiencies of the prior art, the present invention provides an aft heat absorber device for a saturated steam boiler to solve at least one of the above-mentioned problems.

The utility model is realized by the following technical scheme:

a tail heat absorption device of a saturated steam boiler comprises a water tank, wherein an air inlet is formed in one side of the water tank and is connected with one end of an air inlet pipe, and the other end of the air inlet pipe is connected with a vent pipe close to the air inlet pipe; the upper parts of two adjacent vent pipes are communicated through a connecting cover, the lower parts of the two adjacent vent pipes are communicated through a water pipe fixing seat, and the connecting covers and the water pipe fixing seat are both of hollow structures; the air inlet of the exhaust pipe is connected with the vent pipe close to the exhaust pipe, and the air outlet is provided with a sensor; the water tank is characterized in that a water outlet pipe is arranged on the lower portion of one side of the water tank, a water inlet pipe is arranged on the upper portion of the water tank, and electromagnetic valves are arranged on the water outlet pipe and the water inlet pipe.

Among the above-mentioned technical scheme, set up the water pipe fixing base of fixing in the water tank bottom and with two adjacent breather pipe sealing connection's connecting cover in the heat sink, connect many breather pipes through using water pipe fixing base and connecting cover, realized that the breather pipe is convenient for with blast pipe, intake pipe, water pipe fixing base assembly and the technological effect of dismantling.

Preferably, the air outlet of the air inlet pipe is in threaded connection with the vent pipe close to the air inlet pipe, and the air inlet of the vent pipe is in threaded connection with the vent pipe close to the vent pipe, so that the vent pipe, the air inlet pipe and the vent pipe can be detached and installed conveniently.

Preferably, the water pipe fixing seat is U-shaped, and two ends of the water pipe fixing seat are respectively in threaded connection with two adjacent vent pipes, so that the vent pipes and the water pipe fixing seat can be conveniently detached and installed.

Preferably, a sealing gasket is arranged on the air inlet, so that the tail part of the boiler is in sealing connection with the heat absorbing device.

Preferably, the connecting cover is in an inverted U shape, so that the communication between two adjacent vent pipes is realized conveniently; the sealing rings are arranged at the positions where the two ends of the connecting cover are connected with the vent pipe, so that hot gas in the vent pipe is prevented from leaking, and the air pressure in the heat absorbing device is unbalanced.

Preferably, the air inlet is fixedly connected with the tail part of the boiler through a fixing plate and a screw, so that the tail part of the boiler is fixed with the heat absorbing device, and heat loss is avoided.

Preferably, the water pipe fixing seat is fixedly installed at the bottom of the water tank, so that a pipeline inside the heat absorption device is fixed.

Preferably, a fixedly installed partition plate is arranged in the water tank, a plurality of round holes are formed in the partition plate, the positions of the round holes vertically correspond to threaded joints of the two ends of the water pipe fixing seat, the air outlet end of the air inlet pipe and the air inlet of the air outlet pipe, the air outlet pipe penetrates through the round holes, the inner diameter of each round hole is slightly larger than the outer diameter of each air outlet pipe, and the air outlet pipe penetrates through the round holes so as to be in threaded connection with the air inlet pipe, the air outlet pipe and the water pipe fixing seat; the inner diameter of the round hole is slightly larger than the outer diameter of the vent pipe, so that the vent pipe can penetrate through the round hole in the partition plate.

Preferably, the exhaust pipe is provided with a dust cover, and the dust cover is closed when the heat absorber is in a non-working state and opened when the heat absorber is in a working state, so that dust accumulation at an outlet of the exhaust pipe is avoided.

Preferably, the electromagnetic valves on the water outlet pipe and the water inlet pipe and the temperature sensors on the air outlets of the exhaust pipes are connected with the controller, so that the intelligent control of the whole heat absorbing device is realized.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the utility model, the water pipe fixing seat fixed at the bottom of the water tank and the connecting cover hermetically connected with the two adjacent vent pipes are arranged in the heat absorption device, and the vent pipes are connected by using the water pipe fixing seat and the connecting cover, so that the technical effect that the vent pipes are convenient to assemble and disassemble with the vent pipes, the air inlet pipe and the water pipe fixing seat is realized.

(2) When the heat absorption device starts to work, the valve of the water inlet pipe is opened to control water inlet in the water tank, hot gas at the tail part of the boiler enters the air inlet pipe through the air inlet of the heat absorption device, the hot gas enters the air inlet pipe, then reaches the exhaust pipe through the vent pipe, the connecting cover and the water pipe fixing seat and is exhausted by the exhaust pipe, and when the water temperature detected by the sensor at the outlet of the exhaust pipe exceeds a preset threshold value, the electromagnetic valve of the water outlet pipe is opened by the controller, so that heat absorption and intelligent control of the heat absorption device are realized.

(3) The air inlet pipe and the air outlet pipe are both in a bent snake shape, and two adjacent air outlet pipes communicated with the water pipe fixing seat through the connecting cover are distributed in a snake shape, so that the contact area of hot air at the tail part and cold water in the water tank is increased, the hot air is fully contacted with the cold water, the technical problem that the tail heat absorbing device cannot completely convert the hot air is solved, and the absorption effect of the tail heat absorbing device is improved.

(4) The water tank is internally provided with the fixedly installed partition board, and the partition board is provided with a plurality of round holes which are vertically corresponding to threaded connection positions of two ends of the water pipe fixing seat, the air outlet end of the air inlet pipe and the air inlet of the exhaust pipe, so that the problems that the vent pipe is accurately positioned and is in threaded connection with the water pipe fixing seat, the air inlet pipe and the exhaust pipe are solved, and the technical effect of simple installation and disassembly operation of the vent pipe is realized.

(5) According to the utility model, the sealing gaskets are fixed at the air inlet and the tail outlet through the fixed connection of the bolts and the fixing plate, so that the sealing performance between the tail outlet and the air inlet is improved, the heat absorption device can well utilize the heat of the tail hot gas, the problem that the heat of the joint is easy to dissipate when the existing heat absorption device is used is solved, and the sealing performance of the joint of the heat absorption device is improved.

Drawings

FIG. 1 is a schematic view of an aft heat absorber of a saturated steam boiler in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of a separator according to an embodiment of the utility model;

in the figure: 1. an air inlet pipe; 2. a water tank; 3. a water outlet pipe; 4. a water inlet pipe; 5. a sealing gasket; 6. a connecting cover; 7. a partition plate; 8. a dust cover; 9. an exhaust pipe; 10. an air inlet; 11. a fixing plate; 12. a screw; 13. a breather pipe; 14. water pipe fixing base.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-2, the present embodiment provides a tail heat absorption device of a saturated steam boiler, which includes a water tank 2, an air inlet 10 is disposed at one side of the water tank 2, the air inlet 10 is connected to one end of an air inlet pipe 2, and the other end of the air inlet pipe 1 is connected to a vent pipe 13 near the air inlet pipe 1; the plurality of air pipes 13 are arranged, the upper parts of two adjacent air pipes 13 are communicated through a connecting cover 6, the lower parts of two adjacent air pipes 13 are communicated through a water pipe fixing seat 14, and the connecting cover 6 and the water pipe fixing seat 14 are both hollow structures; the air inlet of the exhaust pipe 9 is connected with a vent pipe 13 close to the exhaust pipe 9, and the air outlet is provided with a sensor; the water tank 2 is characterized in that a water outlet pipe 3 is arranged on the lower portion of one side of the water tank 2, a water inlet pipe 4 is arranged on the upper portion of the water tank, and electromagnetic valves are arranged on the water outlet pipe 3 and the water inlet pipe 4.

The air outlet of the air inlet pipe 1 is in threaded connection with a vent pipe 13 close to the air inlet pipe 1, and the air inlet of the vent pipe 9 is in threaded connection with the vent pipe 13 close to the vent pipe 9, so that the vent pipe 13, the air inlet pipe 1 and the vent pipe 9 can be detached and installed conveniently.

The water pipe fixing seat 14 is U-shaped, and two ends of the water pipe fixing seat are respectively in threaded connection with the two adjacent ventilating pipes 13, so that the ventilating pipes 13 and the water pipe fixing seat 14 can be conveniently detached and installed.

And a sealing gasket 5 is arranged on the air inlet 10 so as to realize the sealing connection between the tail part of the boiler and the heat absorbing device.

The connecting cover 6 is in an inverted U shape so as to realize the communication between two adjacent vent pipes 13; sealing rings are arranged at the positions where the two ends of the connecting cover 6 are connected with the vent pipe 13, so that hot gas in the vent pipe 13 is prevented from leaking, and the air pressure in the heat absorbing device is unbalanced.

The air inlet 10 and the boiler tail are fixedly connected through a fixing plate 11 and a screw 12, so that the boiler tail and the heat absorbing device are fixed conveniently, and heat loss is avoided.

The water pipe fixing seat 14 is fixedly installed at the bottom of the water tank 2 so as to fix a pipeline inside the heat absorbing device.

Be provided with fixed mounting's baffle 7 in the water tank 2, be provided with a plurality of round holes on the baffle 7, the position of round hole with the both ends of water pipe fixing base 14, the end of giving vent to anger of intake pipe 1 and the threaded connection department of the air inlet of outlet duct 9 corresponds from top to bottom, breather pipe 13 runs through the round hole, the internal diameter of round hole slightly is greater than the external diameter of breather pipe, has realized the breather pipe in heat-absorbing device with intake pipe 1, blast pipe 9 and water pipe fixing base 14's location, has guaranteed the flow of gas in breather pipe 13.

Be provided with shield 8 on the blast pipe 9, shield 8 is closed when heat sink is in non-operating condition, opens when being in operating condition to avoid the exit dust of blast pipe 9 to pile up.

The electromagnetic valves on the water outlet pipe 3 and the water inlet pipe 4 and the temperature sensors on the air outlets of the exhaust pipes 9 are connected with the controller, so that the intelligent control of the whole heat absorption device is realized.

The use method of the utility model comprises the following steps:

firstly, the vent pipe 13 penetrates through a corresponding round hole on the partition plate 7, then the vent pipe 13 is in threaded connection with the corresponding air inlet pipe 1, the exhaust pipe 9 and the water pipe fixing seat 14, and finally the tail part of the boiler is fixedly connected with the heat absorption device through the fixing plate 11 and the screw 12. When the heat absorption device starts to work, the valve of the water outlet pipe 3 is closed, the valve of the water inlet pipe 4 is opened, and water enters the water tank 2. The hot gas at the tail part of the boiler enters the air inlet pipe 1 through the air inlet 10 of the heat absorbing device, and the hot gas enters the air inlet pipe 1 and then reaches the exhaust pipe 9 through the vent pipe 13, the connecting cover 6 and the water pipe fixing seat 14, and then is discharged from the exhaust pipe 9. When a sensor at the outlet of the exhaust pipe 9 monitors that the water temperature exceeds a preset threshold value, the controller opens the electromagnetic valve of the water outlet pipe 3, so that the intelligent control of the heat absorption device is realized.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.

Claims

1. A tail heat absorption device of a saturated steam boiler comprises a water tank (2), and is characterized in that: an air inlet (10) is formed in one side of the water tank (2), the air inlet (10) is connected with one end of an air inlet pipe (1), and the other end of the air inlet pipe (1) is connected with a vent pipe (13) close to the air inlet pipe (1); the ventilation pipes (13) are arranged in plurality, the upper parts of two adjacent ventilation pipes (13) are communicated through a connecting cover (6), the lower parts of two adjacent ventilation pipes (13) are communicated through a water pipe fixing seat (14), and the interiors of the connecting cover (6) and the water pipe fixing seat (14) are both hollow structures; an air inlet of the exhaust pipe (9) is connected with a vent pipe (13) close to the exhaust pipe (9), and an air outlet is provided with a sensor; the water tank is characterized in that a water outlet pipe (3) is arranged on the lower portion of one side of the water tank (2), a water inlet pipe (4) is arranged on the upper portion of the water tank, and electromagnetic valves are arranged on the water outlet pipe (3) and the water inlet pipe (4).

2. A saturated steam boiler aft heat absorber according to claim 1, wherein: the air outlet of the air inlet pipe (1) is in threaded connection with a vent pipe (13) close to the air inlet pipe (1), and the air inlet of the vent pipe (9) is in threaded connection with the vent pipe (13) close to the vent pipe (9).

3. A saturated steam boiler aft heat absorber according to claim 1, wherein: the water pipe fixing seat (14) is U-shaped, and two ends of the water pipe fixing seat are respectively in threaded connection with the two adjacent vent pipes (13).

4. A saturated steam boiler aft heat absorber according to claim 1, wherein: and a sealing gasket (5) is arranged on the air inlet (10).

5. A saturated steam boiler aft heat absorber according to claim 1, wherein: the connecting cover (6) is in an inverted U shape, and sealing rings are arranged at the positions where the two ends of the connecting cover are connected with the ventilating pipes (13).

6. A saturated steam boiler aft heat absorber according to claim 1, wherein: the air inlet (10) is fixedly connected with the tail part of the boiler through a fixing plate (11) and a screw (12).

7. A saturated steam boiler aft heat absorber according to claim 1, wherein: the water pipe fixing seat (14) is fixedly arranged at the bottom of the water tank (2).

8. A saturated steam boiler aft heat absorber according to claim 1, wherein: be provided with fixed mounting's baffle (7) in water tank (2), be provided with a plurality of round holes on baffle (7), the position of round hole with the both ends of water pipe fixing base (14), the end of giving vent to anger of intake pipe (1) and the threaded connection department of the air inlet of blast pipe (9) corresponds from top to bottom, breather pipe (13) run through the round hole, the internal diameter of round hole slightly is greater than the external diameter of breather pipe (13).

9. A saturated steam boiler aft heat absorber according to claim 1, wherein: and a dust cover (8) is arranged on the exhaust pipe (9).

10. A saturated steam boiler aft heat absorber according to claim 1, wherein: and the electromagnetic valves on the water outlet pipe (3) and the water inlet pipe (4) and the temperature sensors on the air outlets of the exhaust pipes (9) are connected with the controller.