CN214468726U

CN214468726U - Recovery and collection device for boiler waste heat of thermal power plant

Info

Publication number: CN214468726U
Application number: CN202120390082.0U
Authority: CN
Inventors: 邸建廷; 李治强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-10-22
Anticipated expiration: 2031-02-22

Abstract

The utility model provides a boiler waste heat of thermal power plant is with retrieving collection device, including a combustion section of thick bamboo, the sealed intercommunication of a combustion section of thick bamboo opposite side has the excessive chamber of waste gas, and the excessive chamber one side fixed connection of waste gas is connected with a plurality of waste heat boiler pipes, and waste heat boiler pipe outer wall cover is equipped with the boiler water storage tank, and boiler water storage tank bottom portion has managed to connect has water supply mechanism, and boiler water storage tank top fixedly connected with retrieves the mechanism, and the waste heat boiler pipe other end runs through boiler water storage tank opposite side fixedly connected with blowdown mechanism. The utility model provides a boiler waste heat of thermal power plant is with retrieving collection device, the water supply mechanism that is equipped with prevents that water from burning dry and retrieve partial hot water and store for boiler water storage tank water supply, utilizes boiler waste heat processing hot water to use, is equipped with the steam that recovery mechanism will produce and separates the recovery, and the steam of separation is sent away the utilization, reduces water wasting of resources, and the waste gas of emission that the blowdown mechanism that is equipped with carries out condensation dust fall and handles, effectively reduces the pollution of waste gas to the air.

Description

Recovery and collection device for boiler waste heat of thermal power plant

Technical Field

The utility model belongs to the technical field of waste heat recovery, concretely relates to boiler waste heat of thermal power plant is with retrieving collection device.

Background

The waste heat refers to sensible heat and latent heat which are not reasonably utilized in the original design in the energy consumption device of the put-in-operation industrial enterprise due to the limitations of factors such as history, technology, concept and the like. The method comprises the steps of high-temperature waste gas waste heat, cooling medium waste heat, waste steam waste water waste heat, high-temperature product and slag waste heat, chemical reaction waste heat, combustible waste gas waste liquid, waste material waste heat and the like. According to investigation, the total waste heat resources of all industries account for 17% -67% of the total fuel consumption, and the recyclable waste heat resources account for 60% of the total waste heat resources. The high-temperature waste gas that current thermal power plant boiler produced after burning contains the heat, and these steam that contain the high-temperature heat can cause the waste of energy in by direct discharge air, cause the pollution to the environment simultaneously, and the high-temperature waste gas that the comburent produced can not carry out effectual recovery and collect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler waste heat of thermal power plant is with retrieving collection device aims at solving among the prior art high temperature waste gas that the comburent produced and directly emits into the air and can cause the waste of energy, and the waste heat of production can not carry out effectual collection and recycle's problem.

In order to achieve the above object, the utility model provides a following technical scheme: including the combustion barrel, the combustion barrel top articulates there is feed valve, combustion barrel one side is equipped with air supply fan, the sealed intercommunication of combustion barrel opposite side has the excessive chamber of waste gas, the excessive chamber one side fixed connection of waste gas is connected with a plurality of waste heat boiler pipes, waste heat boiler pipe outer wall cover is equipped with the boiler water storage tank, boiler water storage tank bottom portion pipe joint has water supply mechanism, boiler water storage tank top fixedly connected with recovery mechanism, the waste heat boiler pipe other end runs through boiler water storage tank opposite side fixedly connected with blowdown mechanism.

In order to supply water to the boiler water storage tank, the recovery and collection device for the waste heat of the boiler of the thermal power plant is preferably used, and the water supply mechanism comprises a water supply pipe and a water guide pipe; the water supply pipe is fixedly connected to the bottom of the boiler water storage tank, the other end of the water supply pipe is connected with a water supply pump in a pipe mode, a liquid level adjusting valve is arranged on one side of the water supply pump, the water guide pipe is fixedly connected with the front face of the boiler water storage tank, the other end of the water guide pipe is connected with a water flow control valve in a pipe mode, a temperature sensing meter is arranged on one side of the water flow control valve, and the other end of the water flow control valve is fixedly connected with a hot water storage tank.

In order to make the high temperature waste gas to the emission purify, as the utility model relates to a boiler waste heat of thermal power plant is with retrieving collection device is preferred, sewage discharging mechanism includes waste heat boiler pipe other end fixed mounting's recovery tube, recovery tube top one side pipe has exhaust emission pipe, recovery tube inner wall top is equipped with a plurality of shower heads, recovery tube bottom fixedly connected with waste liquid holding vessel.

In order to recycle saturated steam, the utility model relates to a recovery and collection device for boiler waste heat in thermal power plants is preferred, the recovery mechanism comprises a gas bag fixedly connected to the top of a boiler water storage tank, a demister is arranged in the gas bag, the top pipe of the gas bag is connected with a steam pipe, the other end of the steam pipe is fixedly connected with a steam-water separator, one side of the bottom of the steam-water separator is connected with a drain pipe, the other end of the drain pipe is connected with a drain valve, and one side of the drain valve is fixedly provided with a recovery liquid storage tank; and an exhaust pipe is connected with one side pipe at the top of the steam-water separator.

In order to make equipment normally work, as the utility model relates to a boiler waste heat of thermal power plant is with retrieving collection device is preferred, the combustion cylinder openly is equipped with the staircase, staircase one side fixed mounting has flush mounting plate of switch, be equipped with the PLC controller in the flush mounting plate of switch, feed pump, air supply fan all with PLC controller electric connection, flush mounting plate of switch and external power supply electric connection.

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

1) for the accurate water supply of boiler water storage tank prevents that water from heating up through the water supply mechanism that is equipped with, when water boils to the uniform temperature when heating up water, retrieve partial hot water and store, utilize boiler waste heat processing hot water to use, be equipped with the steam that recovery mechanism will produce and carry out steam-water separation and categorised recovery, the steam of separation is sent away the utilization, and the cold water of separation is collected and is recycled, has reduced water waste.

2) Carry out condensation dust fall through being equipped with the blowdown mechanism that is equipped with and handle the waste gas of emission, the waste water after the condensation is concentrated and is collected, reduces the pollutant content in the waste gas, effectively reduces the pollution of waste gas to the air.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention;

FIG. 3 is a schematic structural view of the water supply mechanism of the present invention;

FIG. 4 is a schematic view of the water supply mechanism of the present invention;

fig. 5 is a schematic structural view of the recycling mechanism of the present invention.

Fig. 6 is a schematic structural view of the sewage draining mechanism of the present invention.

In the figure: 1. a combustion can; 2. a feed valve; 3. an air supply fan; 4. an exhaust gas transition chamber; 5. a waste heat boiler tube; 6. a boiler water storage tank; 7. a water supply mechanism; 71. a water supply pipe; 72. a feed pump; 73. a liquid level regulating valve; 74. a water flow control valve; 75. a water conduit; 76. a temperature sensing meter; 77. a hot water storage tank; 8. a sewage draining mechanism; 81. a recovery pipe; 82. an exhaust gas discharge pipe; 83. a shower head; 84. a waste liquid storage tank; 9. a recovery mechanism; 91. air bags; 92. a demister; 93. a steam pipe; 94. a steam-water separator; 95. a drain pipe; 96. a drain valve; 97. a liquid storage tank is recovered; 98. an exhaust pipe; 10. a switch panel; 11. an escalator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions: including a combustion section of thick bamboo 1, 1 top of a combustion section of thick bamboo articulates there is feed valve 2, 1 one side of a combustion section of thick bamboo is equipped with air supply fan 3, 1 sealed intercommunication of opposite side of a combustion section of thick bamboo has the excessive chamber 4 of waste gas, 4 one side fixed connection in the excessive chamber of waste gas are connected with a plurality of waste

heat boiler pipes

5, 5 outer wall covers of waste heat boiler pipe are equipped with boiler

water storage tank

6, 6 bottom pipings of boiler water storage tank have

water supply mechanism

7, 6 top fixedly connected with recovery mechanism 9 of boiler water storage tank, 5 other ends of waste heat boiler pipe run through 6 opposite side fixedly connected with blowdown mechanism 8 of boiler water storage tank.

Preferably, the water supply mechanism 7 includes a water supply pipe 71 and a water introduction pipe 75; the water supply pipe 71 is fixedly connected to the bottom of the boiler water storage tank 6, the other end of the water supply pipe 71 is connected with a water supply pump 72 in a pipe mode, a liquid level adjusting valve 73 is arranged on one side of the water supply pump 72, the water guide pipe 75 is fixedly connected with the front side of the boiler water storage tank 6, the other end of the water guide pipe 75 is connected with a water flow control valve 74 in a pipe mode, a temperature sensing meter 76 is arranged on one side of the water flow control valve 74, and a hot water storage tank 77 is fixedly connected to the other end of the water flow control valve 74.

During the specific use, the staff opens feed valve 2 and burns in leading-in combustion cylinder 1 of fuel, air supply fan 3 blows in to combustion cylinder 1 and makes the fuel fully burn, the excessive chamber 4 of high temperature waste gas process waste gas that produces after the burning is carried to waste heat boiler pipe 5 in, water pump 72 starts the pump water this moment, rivers fill boiler water storage tank 6 through aqueduct 75, high temperature waste gas launching at waste heat boiler pipe 5 begins the boiling and produces saturated steam, the rivers that water pump 72 was pumped out to liquid level control valve 73 control prevents that water evaporation is totally up in boiler water storage tank 6, when the temperature reachs certain temperature, the staff opens rivers control valve 74 and carries hot water to hot water storage jar 77 through aqueduct 75 and stores, effectively retrieve and collect boiler waste heat.

Preferably, the blowdown mechanism 8 comprises a recovery pipe 81 fixedly installed at the other end of the waste heat boiler pipe 5, a waste gas discharge pipe 82 is connected to one side of the top of the recovery pipe 81 in a pipe mode, a plurality of spray headers 83 are arranged at the top of the inner wall of the recovery pipe 81, and a waste liquid storage tank 84 is fixedly connected to the bottom of the recovery pipe 81.

During the specific use, when high temperature waste gas sent to in the recovery tube 81 along waste heat boiler pipe 5, shower head 83 in the recovery tube 81 began to spray water, carries out the dust fall to waste gas and handles, reduces the pollution in the waste gas, and the water droplet after the condensation falls into waste liquid holding vessel 84 and retrieves, effectively reduces the pollutants in the waste gas after the burning.

Preferably, the recovery mechanism 9 comprises an air bag 91 fixedly connected to the top of the boiler water storage tank 6, a demister 92 is arranged in the air bag 91, the top of the air bag 91 is connected with a steam pipe 93 through a pipe, the other end of the steam pipe 93 is fixedly connected with a steam-water separator 94, one side of the bottom of the steam-water separator 94 is connected with a drain pipe 95 through a pipe, the other end of the drain pipe 95 is connected with a drain valve 96 through a pipe, and one side of the drain valve 96 is fixedly provided with a recovery liquid storage tank 97; an exhaust pipe 98 is connected to one side of the top of the steam-water separator 94.

During the specific use, saturated steam that produces in the boiler water storage tank 6 rises and gets into in the top air pocket 91, and demister 92 in the air pocket 91 guarantees that steam is pure to steam filtration, and filtered steam gets into in catch water 94 along steam pipe 93, and catch water 94 condenses the water in the steam through the condensation, and the water after the condensation passes through trap 96 and collects in retrieving liquid storage pot 97, and the steam on upper portion is sent to the place that needs along blast pipe 98.

Preferably, the front surface of the combustion cylinder 1 is provided with an escalator 11, one side of the escalator 11 is fixedly provided with a switch panel 10, a PLC controller is arranged in the switch panel 10, the water supply pump 72 and the air supply fan 3 are both electrically connected with the PLC controller, and the switch panel 10 is electrically connected with an external power supply.

When the air conditioner is used specifically, a worker operates the switch panel 10 to enable the PLC to control the water feeding pump 72 and the air supply fan 3 to work, and after the switch panel 10 is powered off, the PLC powers off the water feeding pump 72 and the air supply fan 3 to enable the water feeding pump 72 and the air supply fan 3 to stop running.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a boiler waste heat of thermal power plant is with retrieving collection device, includes a combustion section of thick bamboo (1), its characterized in that: the utility model discloses a boiler, including a combustion section of thick bamboo (1), combustion section of thick bamboo (1) top articulates there is feed valve (2), combustion section of thick bamboo (1) one side is equipped with air supply fan (3), the sealed intercommunication of combustion section of thick bamboo (1) opposite side has the excessive chamber of waste gas (4), a plurality of waste heat boiler pipe of waste heat boiler (5) of excessive chamber of waste gas (4) one side fixedly connected with, waste heat boiler pipe of waste heat boiler (5) outer wall cover is equipped with boiler water storage tank (6), boiler water storage tank (6) bottom pipe is connected with water supply mechanism (7), boiler water storage tank (6) top fixedly connected with recovery mechanism (9), waste heat boiler pipe of waste heat boiler (5) other end runs through boiler water storage tank (6) opposite side fixedly connected with blow-off mechanism (8).

2. A recovery and collection device for thermal power plant boiler waste heat according to claim 1, characterized in that: the water supply mechanism (7) comprises a water supply pipe (71) and a water guide pipe (75); the utility model discloses a boiler water storage tank, including delivery pipe (71), delivery pipe (71) other end pipe connection have water-feeding pump (72), water-feeding pump (72) one side is equipped with liquid level regulating valve (73), aqueduct (75) fixed connection and boiler water storage tank (6) are positive, aqueduct (75) other end pipe connection has rivers control valve (74), rivers control valve (74) one side is equipped with temperature-sensing table (76), rivers control valve (74) other end fixedly connected with hot water storage jar (77).

3. A recovery and collection device for thermal power plant boiler waste heat according to claim 1, characterized in that: blowdown mechanism (8) include waste heat boiler pipe (5) other end fixed mounting's recovery tube (81), recovery tube (81) top one side pipe is connected with exhaust gas discharge pipe (82), recovery tube (81) inner wall top is equipped with a plurality of shower heads (83), recovery tube (81) bottom fixedly connected with waste liquid holding vessel (84).

4. A recovery and collection device for thermal power plant boiler waste heat according to claim 1, characterized in that: the recovery mechanism (9) comprises an air bag (91) fixedly connected to the top of a boiler water storage tank (6), a demister (92) is arranged in the air bag (91), the top of the air bag (91) is connected with a steam pipe (93) in a pipe mode, the other end of the steam pipe (93) is fixedly connected with a steam-water separator (94), one side of the bottom of the steam-water separator (94) is connected with a drain pipe (95) in a pipe mode, the other end of the drain pipe (95) is connected with a drain valve (96) in a pipe mode, and a recovery liquid storage tank (97) is fixedly installed on one side of the drain valve (96); and an exhaust pipe (98) is connected to one side pipe at the top of the steam-water separator (94).

5. A recovery and collection device for thermal power plant boiler waste heat according to claim 2, characterized in that: the combustion cylinder (1) openly is equipped with staircase (11), staircase (11) one side fixed mounting has flush mounting plate of switch (10), be equipped with the PLC controller in flush mounting plate of switch (10), feed pump (72), air supply fan (3) all with PLC controller electric connection, flush mounting plate of switch (10) and external power electric connection.