CN210511625U

CN210511625U - Water inlet device for heating boiler by using waste heat of boiler tail gas

Info

Publication number: CN210511625U
Application number: CN201921572638.7U
Authority: CN
Inventors: 王衡
Original assignee: Shanghai Wangte Energy Resource Sicence & Technology Co ltd
Current assignee: Shanghai Wangte Energy Resource Sicence & Technology Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-12
Anticipated expiration: 2029-09-20

Abstract

The utility model relates to a power plant boiler water installations technical field just discloses an utilize boiler tail gas waste heat to heat water installations of boiler, which comprises a base plate, the top fixed mounting of base plate has the boiler, and the right side intercommunication of boiler has the tail gas delivery pipe, and the right side intercommunication of boiler has the first water pipe that is located tail gas delivery pipe below, and the one end intercommunication that the boiler was kept away from to first water pipe has the coil pipe of cup jointing in the tail gas delivery pipe outside, and the one end intercommunication that first water pipe was kept away from to the coil pipe has the second water pipe. This utilize water installations of boiler tail gas waste heat heating boiler, through setting up the water pump, when the water source passes through the coil pipe, the inside tail gas waste heat of tail gas discharge pipe conducts the heat to the water source through the coil pipe, makes the water source get into in the boiler before take away the heat of tail gas and make oneself possess certain heat, leads to just possessing certain heat before the water source gets into the boiler, the easier vaporization to reached the purpose that reduces boiler heat loss and water source vaporization speed and become fast.

Description

Water inlet device for heating boiler by using waste heat of boiler tail gas

Technical Field

The utility model relates to a power plant boiler water installations technical field specifically is an utilize boiler tail gas waste heat to heat boiler's water installations.

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: the most important difference between the fluidized bed furnace and the pulverized coal furnace is the state of the fuel, i.e., liquid and coal dust.

When the utility boiler is used, when the exhaust gas in the boiler is discharged, a part of heat can be taken away to cause heat loss, and the process that water at normal temperature enters the boiler from the water inlet device is slow, so that the water inlet device for heating the boiler by using the waste heat of the tail gas of the boiler is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides an it is not enough to prior art, the utility model provides an utilize boiler tail gas waste heat to heat water installations of boiler possesses the advantage that reduces boiler heat loss and water source vaporization speed and becomes fast, when having solved power plant boiler and using, thereby can take away some heat when the exhaust gas in the boiler and make calorific loss, and the water of normal atmospheric temperature gets into the problem that the boiler becomes the steam process slowly from water installations.

(II) technical scheme

For the purpose that realizes above-mentioned reduction boiler calorific loss and water source vaporization rate and become fast, the utility model provides a following technical scheme: the utility model provides an utilize water installations of boiler tail gas waste heat heating boiler, which comprises a substrate, the top fixed mounting of base plate has the boiler, the right side intercommunication of boiler has the tail gas delivery pipe, the right side intercommunication of boiler has the first water pipe that is located tail gas delivery pipe below, the one end intercommunication that the boiler was kept away from to first water pipe has the coil pipe that cup joints in the tail gas delivery pipe outside, the one end intercommunication that the first water pipe was kept away from to the coil pipe has the second water pipe, the one end that the coil pipe was kept away from to the second water pipe communicates with the output of water pump, the input intercommunication of water pump has the third water pipe, the one end intercommunication that the water pump was kept away from to the third water pipe has the water tank, the inner chamber right side wall fixedly connected with one end of water tank runs through and extends to the liquid level inductor on water tank right side, the right side fixed, Alarm device and liquid level inductor pass through the wire electricity and connect, the inner chamber left side wall swing joint of water tank has the filter screen that is located the third water pipe right side, the left side sliding connection of water tank has one end to run through and extend to the inside T type bolt of water tank, T type bolt is located the below of filter screen, the top sliding connection of T type bolt has one end to run through and extend to the L type separation blade of T type bolt bottom, the top fixedly connected with of T type bolt is located the inside ring baffle of water tank, ring baffle's left side fixedly connected with quantity is two springs, two the equal fixedly connected with clamp plate in left side of spring, the left side of clamp plate closely laminates with the right side of filter screen.

Preferably, the alarm device is a buzzer alarm, and the rated voltage of the buzzer alarm is equal to the voltage provided by the power supply.

Preferably, the two springs are subjected to surface rust prevention treatment and are symmetrically distributed

Preferably, the top of the T-shaped bolt is provided with a sliding hole, and the T-shaped bolt is clamped with the L-shaped separation blade through the sliding hole.

Preferably, the distance from the bottom of the liquid level sensor to the bottom of the water tank is greater than the distance from the top of the third water pipe to the bottom of the water tank, and the surface of the liquid level sensor is subjected to anti-corrosion treatment.

Preferably, the water tank is stainless steel, and the inside fixedly connected with one end of water tank runs through and extends to the external water source outside the water tank.

(III) advantageous effects

Compared with the prior art, the utility model provides an utilize boiler tail gas waste heat heating boiler's water installations possesses following beneficial effect:

1. this utilize water installations of boiler tail gas waste heat heating boiler, through setting up the water pump, when discharging tail gas, the water pump pumps the water source of the inside packing of water tank, the water source passes through the second water pipe, inside coil pipe and the first water pipe reachd the boiler, the water source was when the coil pipe, the inside tail gas waste heat of tail gas delivery pipe passes through the coil pipe conduction with the heat to the water source, make the water source get into before in the boiler take away the heat of tail gas and make oneself possess certain heat, lead to just possessing certain heat before the water source gets into the boiler, the easier vaporization, thereby reached and reduced boiler heat loss and the purpose that the water source vaporization speed becomes fast.

2. The water inlet device for heating the boiler by utilizing the waste heat of the tail gas of the boiler is characterized in that the liquid level sensor is arranged, when the water level in the water tank is lower than the position of the liquid level sensor, the liquid level sensor sends a signal to enable the alarm device to send an alarm for reminding, so that workers can add the alarm in time when the water level is insufficient, the L-shaped separation blade is arranged, when the filter screen needs to be replaced, the L-shaped separation blade is upwards moved to enable the L-shaped separation blade to be inserted into the T-shaped separation blade and separated from the T-shaped separation blade, the T-shaped bolt can slide rightwards and the spring is loosened, so that the pressure plate is separated from the filter screen, the damaged filter screen can be taken out, after a new filter screen is arranged, the T-shaped bolt is leftwards moved to enable the annular baffle plate to move leftwards and the spring is compressed, the pressure plate is, the replacement process is simple and quick, and the device has the advantages of convenient operation and maintenance.

Drawings

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

fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the device comprises a base plate 1, a combustion furnace 2, a tail gas discharge pipe 3, a first water pipe 4, a coil pipe 5, a second water pipe 6, a water pump 7, a third water pipe 8, a water tank 9, a liquid level sensor 10, an alarm device 11, a power supply 12, a lead 13, a filter screen 14, a T-shaped bolt 15, a L-shaped baffle plate 16, an annular baffle plate 17, a spring 18 and a pressing plate 19.

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. 1-2, a water inlet device for heating a boiler by using waste heat of boiler tail gas comprises a base plate 1, a combustion furnace 2 is fixedly installed at the top of the base plate 1, a tail gas discharge pipe 3 is communicated with the right side of the combustion furnace 2, a first water pipe 4 positioned below the tail gas discharge pipe 3 is communicated with the right side of the combustion furnace 2, one end of the first water pipe 4 far away from the combustion furnace 2 is communicated with a coil pipe 5 sleeved outside the tail gas discharge pipe 3, one end of the coil pipe 5 far away from the first water pipe 4 is communicated with a second water pipe 6, one end of the second water pipe 6 far away from the coil pipe 5 is communicated with an output end of a water pump 7, by arranging the water pump 7, when the tail gas is discharged, the water pump 7 pumps out a water source filled in a water tank 9, the water source reaches the combustion furnace 2 through the second water pipe 6, the coil pipe 5 and the first water pipe 4, when, the tail gas heat is taken away before the water source enters the combustion furnace 2 and the tail gas heat has a certain heat, so that the water source has a certain heat before entering the boiler and is easier to vaporize, thereby achieving the purposes of reducing the heat loss of the combustion furnace 2 and speeding up the vaporization speed of the water source, the input end of the water pump 7 is communicated with a third water pipe 8, one end of the third water pipe 8 far away from the water pump 7 is communicated with a water tank 9, the water tank 9 is made of stainless steel, one end of the water tank 9 is fixedly connected with an external water source, the external water source penetrates through and extends to the outer side of the water tank 9, the right side wall of the inner cavity of the water tank 9 is fixedly connected with a liquid level sensor 10, one end of the liquid level sensor 10 penetrates through and extends to the right side of the water tank 9, the model of the liquid level sensor 10 can be 61F-GP-N AC220, the distance from the bottom of the liquid level, an alarm device 11 positioned above a liquid level sensor 10 is fixedly arranged on the right side of a water tank 9, the alarm device 11 is a buzzer alarm, the rated voltage of the buzzer alarm is equal to the voltage provided by a power supply 12, the power supply 12 positioned above the alarm device 11 is fixedly arranged on the right side of the water tank 9, the power supply 12, the alarm device 11 and the liquid level sensor 10 are electrically connected through a wire 13, a filter screen 14 positioned on the right side of a third water pipe 8 is movably connected to the left side wall of an inner cavity of the water tank 9, a T-shaped bolt 15 with one end penetrating through and extending into the water tank 9 is slidably connected to the left side of the water tank 9, the T-shaped bolt 15 is positioned below the filter screen 14, an L-shaped baffle 16 with one end penetrating through and extending to the bottom of the T-shaped bolt 15 is slidably connected to the upper part of the T-shaped bolt 15, a sliding hole is formed in the top of the T-shaped bolt 15, an annular baffle 17 positioned inside, the left sides of the annular baffles 17 are fixedly connected with two springs 18, the surfaces of the two springs 18 are subjected to rust prevention treatment, the springs 18 are symmetrically distributed, the left sides of the two springs 18 are fixedly connected with a pressing plate 19, the left sides of the pressing plate 19 are tightly attached to the right sides of the filter screens 14, through the arrangement of the liquid level sensor 10, when the water level in the water tank 9 is lower than the position of the liquid level sensor 10, the liquid level sensor 10 sends a signal to enable the alarm device 11 to give an alarm for reminding, and a worker can add the liquid level conveniently in time when the water level is insufficient, through the arrangement of the L-shaped baffle 16, when the filter screens 14 need to be replaced, the L-shaped baffle 16 is moved upwards, the L-shaped baffle 16 is inserted into the T-shaped plug 15 and separated from the T-shaped plug 15, the T-shaped plug 15 can slide rightwards and the springs 18 are loosened, so that the pressing plate 19 is separated from the filter screens 14, namely, the damaged filter screens 14, the pressing plate 19 is tightly attached to the filter screen 14 again, the L-shaped baffle 16 is inserted, the spring 18 cannot rebound, the filter screen 14 cannot move under the action of elasticity through the pressing plate 19, and therefore replacement is completed, the replacement process is simple and rapid, and the filter screen replacement device has the advantages of being convenient to operate and maintain.

In summary, according to the water inlet device for heating the boiler by using the waste heat of the boiler tail gas, the water pump 7 is arranged, when the tail gas is discharged, the water pump 7 pumps out the water source filled in the water tank 9, the water source passes through the second water pipe 6, the coil pipe 5 and the first water pipe 4 to reach the inside of the combustion furnace 2, when the water source passes through the coil pipe 5, the waste heat of the tail gas in the tail gas discharge pipe 3 transfers the heat to the water source through the coil pipe 5, so that the water source takes away the heat of the tail gas before entering the combustion furnace 2 and has certain heat, the water source has certain heat before entering the boiler, and is easier to vaporize, thereby achieving the purposes of reducing the heat loss of the boiler and increasing the vaporization speed of the water source, by arranging the liquid level sensor 10, when the water level in the water tank 9 is lower than the position of the liquid level sensor 10, the liquid level sensor 10 sends a signal to make the, by arranging the L-shaped baffle 16, when the filter screen 14 needs to be replaced, the L-shaped baffle 16 is moved upwards, the L-shaped baffle 16 is separated from the T-shaped insertion pin 15, the T-shaped insertion pin 15 can slide rightwards, the spring 18 is loosened, the pressure plate 19 is separated from the filter screen 14, the damaged filter screen 14 can be taken out, after a new filter screen 14 is mounted, the T-shaped bolt 15 is moved leftwards, the annular baffle 17 is moved leftwards, the spring 18 is compressed, the pressure plate 19 is tightly attached to the filter screen 14 again, the L-shaped baffle 16 is inserted, the spring 18 cannot rebound, the filter screen 14 cannot move under the action of elastic force through the pressure plate 19, thereby completing the replacement, having simple and rapid replacement process, having the advantages of convenient operation and maintenance, solving the problems that when the utility boiler is used, thereby can take away partial heat and make calorific loss when the waste gas in the boiler discharges, and the water of normal atmospheric temperature gets into the boiler from water installations and becomes the problem that the steam process is slow.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an utilize water installations of boiler tail gas waste heat heating boiler, includes base plate (1), its characterized in that: the top of the base plate (1) is fixedly provided with a combustion furnace (2), the right side of the combustion furnace (2) is communicated with a tail gas discharge pipe (3), the right side of the combustion furnace (2) is communicated with a first water pipe (4) positioned below the tail gas discharge pipe (3), one end, away from the combustion furnace (2), of the first water pipe (4) is communicated with a coil pipe (5) sleeved outside the tail gas discharge pipe (3), one end, away from the first water pipe (4), of the coil pipe (5) is communicated with a second water pipe (6), one end, away from the coil pipe (5), of the second water pipe (6) is communicated with the output end of a water pump (7), the input end of the water pump (7) is communicated with a third water pipe (8), one end, away from the water pump (7), of the third water pipe (8) is communicated with a water tank (9), the right side wall of an inner cavity of the water tank (9) is fixedly connected, an alarm device (11) positioned above a liquid level sensor (10) is fixedly arranged on the right side of a water tank (9), a power supply (12) positioned above the alarm device (11) is fixedly arranged on the right side of the water tank (9), the power supply (12), the alarm device (11) and the liquid level sensor (10) are electrically connected through a lead (13), a filter screen (14) positioned on the right side of a third water pipe (8) is movably connected to the left side wall of an inner cavity of the water tank (9), a T-shaped bolt (15) with one end penetrating through and extending to the inside of the water tank (9) is slidably connected to the left side of the water tank (9), the T-shaped bolt (15) is positioned below the filter screen (14), an L-shaped baffle plate (16) with one end penetrating through and extending to the bottom of the T-shaped bolt (15) is slidably connected to the upper part of the T-shaped bolt (15), an annular baffle plate (17, the left side fixedly connected with quantity of ring baffle (17) is spring (18) two, two the equal fixedly connected with clamp plate (19) in left side of spring (18), the left side of clamp plate (19) closely laminates with the right side of filter screen (14).

2. The water inlet device for heating the boiler by using the waste heat of the tail gas of the boiler according to claim 1, is characterized in that: the alarm device (11) is a buzzer alarm, and the rated voltage of the buzzer alarm is equal to the voltage provided by the power supply (12).

3. The water inlet device for heating the boiler by using the waste heat of the tail gas of the boiler according to claim 1, is characterized in that: the surfaces of the two springs (18) are subjected to rust prevention treatment, and the springs (18) are symmetrically distributed.

4. The water inlet device for heating the boiler by using the waste heat of the tail gas of the boiler according to claim 1, is characterized in that: the top of the T-shaped bolt (15) is provided with a slide hole, and the T-shaped bolt (15) is connected with the L-shaped baffle (16) in a clamping mode through the slide hole.

5. The water inlet device for heating the boiler by using the waste heat of the tail gas of the boiler according to claim 1, is characterized in that: the distance from the bottom of the liquid level sensor (10) to the bottom of the water tank (9) is larger than the distance from the top of the third water pipe (8) to the bottom of the water tank (9), and the surface of the liquid level sensor (10) is subjected to anti-corrosion treatment.

6. The water inlet device for heating the boiler by using the waste heat of the tail gas of the boiler according to claim 1, is characterized in that: the water tank (9) is made of stainless steel, and one end of the inner fixed connection of the water tank (9) penetrates through and extends to an external water source outside the water tank (9).