CN212340035U

CN212340035U - Heat recovery device for power station boiler

Info

Publication number: CN212340035U
Application number: CN202020899702.9U
Authority: CN
Inventors: 邬蓉
Original assignee: Shanghai Wangte Energy Resource Sicence & Technology Co ltd
Current assignee: Shanghai Wangte Energy Resource Sicence & Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-01-12
Anticipated expiration: 2030-05-26

Abstract

The utility model provides a power plant is heat reclamation device for boiler, including boiler and heating furnace, the center department on boiler right side articulates through the hinge has the charge door, the vertical bolt of center department on charge door right side has the handle, the positive left side bolt of boiler has control panel, the left top intercommunication of boiler inner chamber has the exhaust return bend, the bottom intercommunication of exhaust return bend has recovery mechanism, it includes communicating pipe, electric butterfly valve, air pump, three-way pipe, manifold, circular intercommunication frame, shower nozzle and temperature sensor to retrieve the mechanism, the center department intercommunication at heating furnace inner chamber top has the filler pipe, the center department intercommunication of heating furnace inner chamber bottom has the outlet pipe. The utility model discloses a cooperation of communicating pipe, electric butterfly valve, air pump, three-way pipe, manifold, circular intercommunication frame and shower nozzle can carry out the even heating to the heating furnace to can carry out make full use of, strengthen the heat recovery utilization ratio of boiler to the heat that the boiler produced.

Description

Heat recovery device for power station boiler

Technical Field

The utility model relates to a power plant boiler field especially relates to a heat recovery unit for power plant boiler.

Background

So-called power plant boiler, popular saying is the boiler that the power plant was used for generating electricity, and general capacity is great, and the main unit is 600MW now, and more advanced is ultra supercritical boiler at present, and capacity can reach 1000MW, and power plant boiler mainly has two kinds: pulverized coal furnaces and circulating fluidized bed boilers, which are the main types used in power stations at present, are the most different between fluidized bed furnaces and pulverized coal furnaces, namely liquid and coal powder.

In the power station boiler working process, can produce a large amount of heats, the user is in order to carry out recycle to the heat to need use recovery unit, however current recovery unit can not carry out abundant recycle to the heat at the recovery in-process, then reduces thermal utilization ratio, causes unnecessary heat to scatter and disappear, then causes the waste of the heat energy.

Therefore, it is necessary to provide a heat recovery device for a utility boiler to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a heat recovery unit for power plant boiler has solved current recovery unit and in the recovery process, can not carry out abundant recycle's problem to the heat.

For solving the technical problem, the utility model provides a pair of heat recovery unit for power plant boiler, including boiler and heating furnace, the center department on boiler right side articulates through the hinge has the charge door, the vertical bolt of center department on charge door right side has the handle, the positive left side bolt of boiler has control panel, the left top intercommunication of boiler inner chamber has the exhaust return bend, the bottom intercommunication of exhaust return bend has recovery mechanism, the center department intercommunication at heating furnace inner chamber top has the filler pipe, the center department intercommunication of heating furnace inner chamber bottom has the outlet pipe.

Preferably, the recycling mechanism comprises a communicating pipe, an electric butterfly valve, an air pump, a three-way pipe, a manifold, a circular communicating frame, a spray head and a temperature sensor, the bottom end of the exhaust elbow is communicated with the communicating pipe, an inner cavity of the communicating pipe is communicated with the electric butterfly valve, the bottom end of the communicating pipe is communicated with the air pump, an air outlet of the air pump is communicated with the three-way pipe, the top end and the bottom end of the three-way pipe are communicated with the manifold, one end, away from the three-way pipe, of the manifold is communicated with the circular communicating frame, the periphery of the circular communicating frame is bolted to the outer side of the heating furnace through reinforcing members, the periphery of the inner cavity of the circular communicating frame is communicated with the spray head.

Preferably, the surface of the circular communicating frame is coated with heat-insulating coating, and reinforcing ribs are vertically and integrally formed on the periphery of the circular communicating frame.

Preferably, the spray heads are distributed in a circumferential structure by taking the circular communication frame as the center, and the distance between the spray heads and the heating furnace is within the range of 2-4 cm.

Preferably, the front and the back of the boiler are sequentially bolted with reinforcing plates from left to right, and the right side of the front of the boiler is vertically bolted with a ladder.

Preferably, the bottom of the boiler is bonded with a heat insulating mat by strong glue, and the thickness of the heat insulating mat is at least 5 cm.

Preferably, all the peripheries of the top of the boiler are communicated with heat dissipation fans, inner cavities of the heat dissipation fans are communicated with dust filters, and mesh areas of the dust filters are smaller than 3 mm.

Compared with the prior art, the utility model provides a pair of heat reclamation device for power station boiler has following beneficial effect:

the utility model provides a heat recovery device for a power station boiler,

1. the utility model discloses a cooperation of communicating pipe, electric butterfly valve, air pump, three-way pipe, manifold, circular intercommunication frame and shower nozzle can carry out the even heating to the heating furnace to can carry out make full use of to the heat that the boiler produced, the heat recovery utilization ratio of reinforcing boiler prevents that the heat that the boiler produced from appearing unnecessarily scattering and disappearing.

2. The utility model enhances the heat preservation performance of the circular communicating rack through the heat preservation coating, prevents the heat on the surface of the circular communicating rack from dissipating, the reinforcing ribs are used for enhancing the integral strength of the circular communicating frame and preventing the circular communicating frame from being damaged by stress, the nozzles are distributed in a circumferential structure along the circular communicating frame as the center, can uniformly heat the surface of the heating furnace, enhances the heating effect of liquid in the heating furnace, enhances the overall stability of the boiler through the reinforcing plate, prevents the surface of the boiler from being collided and damaged, is convenient for workers to climb to the top of the boiler through the ladder and pass through the heat insulation pad, the bottom of the boiler can be insulated to prevent unnecessary heat loss, and the heat can be dissipated by the heat dissipation fan, can dispel the heat to take a breath around the boiler top, strengthen the work efficiency of boiler, through the dust screen, prevent that external dust from getting into in the boiler.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a heat recovery device for a power station boiler according to the present invention;

FIG. 2 is a top view of the circular communication frame of FIG. 1;

fig. 3 is a plan view showing the structure of the boiler shown in fig. 1.

Reference numbers in the figures: 1. a boiler; 2. heating furnace; 3. a charging door; 4. a handle; 5. a control panel; 6. an exhaust elbow; 7. a recovery mechanism; 71. a communicating pipe; 72. an electric butterfly valve; 73. an air pump; 74. a three-way pipe; 75. a manifold; 76. a circular communicating frame; 77. a spray head; 78. a temperature sensor; 8. heat-insulating paint; 9. reinforcing ribs; 10. a reinforcing plate; 11. a ladder; 12. a heat insulating pad; 13. a heat dissipation fan; 14. and (4) a dust filter screen.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a heat recovery device for a utility boiler according to the present invention, FIG. 2 is a plan view showing the structure of a circular communicating frame shown in FIG. 1, FIG. 3 is a plan view showing the structure of a boiler shown in FIG. 1, a heat recovery apparatus for a utility boiler, comprising a boiler 1 and a heating furnace 2, the center of the right side of the boiler 1 is hinged with a charging door 3 through a hinge, the center of the right side of the charging door 3 is vertically bolted with a handle 4, a control panel 5 is bolted on the left side of the front surface of the boiler 1, an exhaust elbow 6 is communicated with the top of the left side of the inner cavity of the boiler 1, the bottom end of the exhaust bent pipe 6 is communicated with a recovery mechanism 7, the center of the top of the inner cavity of the heating furnace 2 is communicated with a water adding pipe, and the center of the bottom of the inner cavity of the heating furnace 2 is communicated with a water outlet pipe.

The recovery mechanism 7 comprises a communicating pipe 71, an electric butterfly valve 72, an air pump 73, a three-way pipe 74, a manifold 75, a circular communicating frame 76, a spray head 77 and a temperature sensor 78, the bottom end of the exhaust elbow 6 is communicated with the communicating pipe 71, the inner cavity of the communicating pipe 71 is communicated with the electric butterfly valve 72, the bottom end of the communicating pipe 71 is communicated with the air pump 73, an air outlet of the air pump 73 is communicated with the three-way pipe 74, the top end and the bottom end of the three-way pipe 74 are both communicated with the manifold 75, one end of the manifold 75, which is far away from the three-way pipe 74, is communicated with the circular communicating frame 76, the periphery of the circular communicating frame 76 is bolted with the outer side of the heating furnace 2 through reinforcing members, the periphery of the inner cavity of the circular communicating frame 76 is all communicated with the spray head 77, the temperature sensor 78 is embedded in the left side of the top of, the heat recovery utilization rate of the boiler 1 is enhanced, and unnecessary dissipation of heat generated by the boiler 1 is prevented.

The surface of the circular communicating frame 76 is coated with the heat-insulating coating 8, so that the heat-insulating performance of the circular communicating frame 76 is enhanced, the heat loss of the surface of the circular communicating frame 76 is prevented, the reinforcing ribs 9 are vertically and integrally formed on the periphery of the circular communicating frame 76, the overall strength of the circular communicating frame 76 is enhanced, and the circular communicating frame 76 is prevented from being damaged due to stress.

The spray heads 77 are distributed in a circumferential structure by taking the circular communication frame 76 as the center, the distance between the spray heads 77 and the heating furnace 2 is in a range of 2-4cm, the surface of the heating furnace 2 can be uniformly heated, and the heating effect of liquid in the heating furnace 2 is enhanced.

The front and the back of boiler 1 all have the reinforcing plate 10 in proper order to the right side from a left side, strengthen boiler 1's whole steadiness, prevent that 1 surface of boiler from colliding with the damage, the vertical bolt in the positive right side of boiler 1 has ladder 11, and the staff of being convenient for climbs to 1 top of boiler.

The bottom of boiler 1 has thermal-insulated pad 12 through powerful sticky connecing, thermal-insulated pad 12's thickness is 5cm at least, can insulate against heat the bottom of boiler 1 and handle, prevents that the unnecessary loss of heat from appearing.

All communicate all around the boiler 1 top have heat dissipation fan 13, can dispel the heat to take a breath around the boiler 1 top, strengthen the work efficiency of boiler 1, the inner chamber intercommunication of heat dissipation fan 13 has dust screen 14, the mesh area of dust screen 14 is less than 3mm, prevents that external dust from getting into in the boiler 1.

The utility model provides a pair of heat recovery unit for power station boiler's theory of operation as follows:

when using, electric butterfly valve 72 is opened to control panel 5, air pump 73 pressurizes in to communicating pipe 71, thereby the heat that boiler 1 produced flows to communicating pipe 71 in from exhaust elbow 6, then air pump 73 supplies the heat in three-way pipe 74, then the heat divide into two ways and get into in the manifold 75 gets into circular intercommunication frame 76 at last, then the heat evenly spouts to heating furnace 2 surface through a plurality of shower nozzles 77, thereby can heat the inside liquid of heating furnace 2, temperature sensor 78 responds to the inside temperature of heating furnace 2 in real time simultaneously, thereby can fully recycle the heat that boiler 1 produced.

the utility model discloses a cooperation of communicating pipe 71, electric butterfly valve 72, air pump 73, three-way pipe 74, manifold 75, circular intercommunication frame 76 and shower nozzle 77 can carry out the even heating to heating furnace 2 to can carry out make full use of to the heat that boiler 1 produced, the heat recovery utilization ratio of reinforcing boiler 1 prevents that the heat that boiler 1 produced from appearing unnecessarily scattering and disappearing.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a heat reclamation device for power plant boiler, includes boiler (1) and heating furnace (2), its characterized in that: the utility model discloses a boiler, heating furnace, boiler, heating furnace, boiler, heating furnace, and boiler, heating furnace, and boiler, and heating furnace, boiler, and boiler, and.

2. The heat recovery device for the power station boiler as defined in claim 1, wherein the recovery mechanism (7) comprises a communicating pipe (71), an electric butterfly valve (72), an air pump (73), a three-way pipe (74), a manifold (75), a circular communicating frame (76), a nozzle (77) and a temperature sensor (78), the bottom end of the exhaust elbow (6) is communicated with the communicating pipe (71), the inner cavity of the communicating pipe (71) is communicated with the electric butterfly valve (72), the bottom end of the communicating pipe (71) is communicated with the air pump (73), the air outlet of the air pump (73) is communicated with the three-way pipe (74), the top end and the bottom end of the three-way pipe (74) are communicated with the manifold (75), one end of the manifold (75) far away from the three-way pipe (74) is communicated with the circular communicating frame (76), the periphery of the circular communicating frame (76) is bolted with the outer side of the heating furnace (2, the periphery of the inner cavity of the circular communicating frame (76) is communicated with the spray heads (77), and the left side of the top of the inner cavity of the heating furnace (2) is embedded with a temperature sensor (78).

3. The heat recovery device for the utility boiler according to claim 2, characterized in that the surface of the circular communication frame (76) is coated with heat insulation paint (8), and reinforcing ribs (9) are vertically and integrally formed around the circular communication frame (76).

4. The heat recovery device for utility boilers, according to claim 2, characterized in that the nozzles (77) are distributed in a circumferential configuration centered on a circular communication shelf (76), the distance between the nozzles (77) and the furnace (2) ranging from 2 to 4 cm.

5. The heat recovery device for utility boilers according to claim 1, characterized in that the front and back of the boiler (1) are bolted with reinforcing plates (10) in sequence from left to right, and the right side of the front of the boiler (1) is vertically bolted with a ladder (11).

6. Heat recovery device for utility boilers, according to claim 1, characterized in that the bottom of the boiler (1) is glued with a heat insulating mat (12) by means of strong glue, the thickness of the heat insulating mat (12) being at least 5 cm.

7. The heat recovery device for the utility boiler according to claim 1, characterized in that the periphery of the top of the boiler (1) is communicated with a heat dissipation fan (13), an inner cavity of the heat dissipation fan (13) is communicated with a dust filter (14), and the mesh area of the dust filter (14) is smaller than 3 mm.