CN212362443U

CN212362443U - Cooling pipe group for condensing boiler

Info

Publication number: CN212362443U
Application number: CN202020763117.6U
Authority: CN
Inventors: 齐龙江; 杨阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-01-15
Anticipated expiration: 2030-05-11

Abstract

The utility model belongs to the boiler equipment field specifically is a cooling tube group for condensing boiler, including the cooling tube group, the cooling water cavity has been seted up to the inside of cooling tube group, the left top fixed mounting of cooling tube group has the cooling water to advance the pipe, the bottom fixed mounting on cooling tube group right side has the cooling water exit tube, the flue gas is installed to the left lower part of cooling tube group and is advanced the pipe, the flue gas exit tube is installed on the upper portion on cooling tube group right side. The above technical scheme of the utility model has following profitable technological effect: through guide plate and condenser tube, make the inside that the left side below that high temperature flue gas can the cooling tube nest enters into the flue gas chamber, then the flue gas is the S-shaped flow along the guide plate for high temperature flue gas and the long-time abundant contact of a plurality of condenser tube, and then the heat among the messenger high temperature waste gas fully converts the inside to the cooling water, thereby has improved the conversion efficiency of cooling tube nest, has reduced the waste of the energy.

Description

Cooling pipe group for condensing boiler

Technical Field

The utility model relates to a boiler equipment field specifically is a cooling tube nest for condensing boiler.

Background

The boiler is an energy conversion device, fuel is combusted through a combustor, high-temperature flue gas after combustion enters a flue gas cooling chamber through a combustion chamber to be cooled and chemical energy and the like in the fuel are converted into heat energy, and the heat energy released by the fuel is absorbed by cooling water and is expressed as steam or high-temperature water with certain heat energy output by the boiler. The condensing boiler can absorb sensible heat in high-temperature flue gas after fuel combustion and latent heat of vaporization released by condensation of water vapor in the high-temperature flue gas, and the heat efficiency of the condensing boiler is high.

The conversion of energy is carried out through mainly the cooling nest of tubes in the condensing boiler, but the cooling nest of tubes of current condensing boiler more or less all has certain shortcoming in the in-service use in-process, for example the cooling nest of tubes that the general direct flow of high temperature flue gas is to closely arranging, make the inside cooling water that flows of cooling nest of tubes carry out the heat transfer, but the short efficiency that can direct influence boiler energy conversion of high temperature flue gas and cooling nest of tubes contact time, cause the waste of energy, even if there is the cooling nest of tubes and the flue gas contact time of partial condensing boiler design abundant, but this type of structure is comparatively complicated, be not convenient for popularize and use, therefore we have proposed a cooling nest of tubes for condensing boiler.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a cooling tube nest for condensing boiler has conversion efficiency height and simple structure's characteristics.

(II) technical scheme

For solving the technical problem, the utility model provides a cooling tube group for condensing boiler, including the cooling tube group, the cooling water cavity has been seted up to the inside of cooling tube group, the left top fixed mounting of cooling tube group has the cooling water to advance the pipe, the bottom fixed mounting on cooling tube group right side has the cooling water exit tube, the flue gas is installed to the left lower part of cooling tube group and is advanced the pipe, the flue gas exit tube is installed on the upper portion on cooling tube group right side, the inner chamber of cooling tube group is equipped with the flue gas chamber, the mid-mounting of flue gas chamber has the guide plate, the upper and lower both sides of guide plate fixed mounting respectively has condenser tube, condenser tube's both ends respectively with cooling water cavity through connection, condenser tube's one end is equipped with the water pump, the positive lower right.

Preferably, the housing of the cooling tube group is composed of a cylindrical water jacket in the middle and plate-shaped water jackets at two ends, and the cylindrical water jacket and the plate-shaped water jackets are detachably connected.

Preferably, a splitter plate is installed at one end of the inner side of the flue gas inlet pipe, and a plurality of exhaust ports corresponding to the cooling water pipes are formed in the other side of the splitter plate.

Preferably, the net frame is installed to the one end in the flue gas exit tube outside, the inside of net frame is equipped with the filter core.

Preferably, the guide plates are arranged at one end, through which the flue gas flows, in an inclined manner, and at least two guide plates are arranged.

Preferably, the cooling water pipe is provided with nine rows of at least three, and the heat exchange fins are installed on the inner side of the cooling water pipe.

Preferably, the controller connected with the water pump is arranged on the outer side of the cooling pipe group, and the heat shield is arranged on the outer side of the water pump.

The above technical scheme of the utility model has following profitable technological effect: through guide plate and condenser tube, make the high temperature flue gas can the left side below of cooling tube group enter into the inside of flue gas chamber, then the flue gas is the S-shaped flow along the guide plate, make high temperature flue gas and the long-time abundant contact of a plurality of condenser tube, and then make the inside of the abundant conversion of heat among the high temperature waste gas to the cooling water, thereby the conversion efficiency of cooling tube group has been improved, the waste of the energy has been reduced, wrap up a plurality of condenser tube through cooling jacket simultaneously, make in the heat of high temperature flue gas also can directly transmit the cooling water, overall structure is comparatively simple, and is with low costs and efficient, and convenient to popularize and use.

Drawings

FIG. 1 is a schematic front sectional view of the structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

FIG. 3 is a schematic side sectional view of the structure of the present invention;

fig. 4 is a schematic side view of the structure of the present invention.

Reference numerals:

1. a cooling tube bank; 2. a cooling water cavity; 3. a cooling water inlet pipe; 4. a cooling water outlet pipe; 5. a flue gas inlet pipe; 51. a flow distribution plate; 6. a flue gas outlet pipe; 61. a screen frame; 62. a filter element; 7. a flue gas chamber; 8. a baffle; 9. A cooling water pipe; 91. a heat exchanger fin; 10. a water pump; 11. a condensed water outlet; 12. and a controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-4, the utility model provides a cooling tube group for condensing boiler, including cooling tube group 1, cooling water cavity 2 has been seted up to cooling tube group 1's inside, the left top fixed mounting of cooling tube group 1 has the cooling water to advance tub 3, the bottom fixed mounting on cooling tube group 1 right side has cooling water exit tube 4, the flue gas is installed to the left lower part of cooling tube group 1 and is advanced tub 5, flue gas exit tube 6 is installed on the upper portion on cooling tube group 1 right side, the inner chamber of cooling tube group 1 is equipped with flue gas chamber 7, the mid-mounting of flue gas chamber 7 has guide plate 8, the upper and lower both sides of guide plate 8 are fixed mounting respectively has condenser tube 9, the both ends of condenser tube 9 respectively with cooling water cavity 2 through connection, the one end of condenser tube 9 is equipped with water pump 10, the positive.

In order to solve the problem that the contact time of the high-temperature flue gas and the cooling pipe group 1 is short, we pass through the guide plate 8 and the cooling water pipe 9, make the high-temperature flue gas enter into the inside of flue gas chamber 7 in the left below that can the cooling pipe group 1, then the flue gas is the S-shaped flow along the guide plate 8, make the high-temperature flue gas and the long-time abundant contact of a plurality of cooling water pipe 9, and then make the heat in the high-temperature waste gas fully convert the inside to the cooling water, thereby the conversion efficiency of the cooling pipe group 1 has been improved, the waste of the energy has been reduced, thereby the high-efficient.

Furthermore, the shell of the cooling pipe group 1 is composed of a cylindrical water jacket at the middle part and plate-shaped water jackets at two ends, and the cylindrical water jacket and the plate-shaped water jackets are detachably connected, so that the cooling pipe group 1 is formed by assembling, the maintenance and the overhaul of the inside of the cooling pipe group 1 are convenient, the use is more convenient, and the rationality of the device is improved.

As shown in fig. 1 and 3, the splitter plate 51 is installed at one end of the inner side of the flue gas inlet pipe 5, a plurality of exhaust ports corresponding to the cooling water pipes 9 are formed in the other side of the splitter plate 51, namely, three exhaust ports corresponding to the cooling water pipes 9 are formed in the exhaust ports, so that flue gas can uniformly flow to the cooling water pipes 9, uniform heat exchange of cooling water is ensured, the conversion efficiency of the cooling pipe group 1 is improved, and the reliability of the device is improved.

It should be noted that, a net frame 61 is installed at one end of the outer side of the flue gas outlet pipe 6, a filter element 62 is arranged inside the net frame 61, and the flue gas after cooling can be discharged to the outside after being purified through an air purification structure formed by the net frame 61 and the filter element 62, so that the pollution to the environment is reduced, and the feasibility of the device is improved.

Further, the one end in the 6 outsides of flue gas exit tubes can the lug connection flue gas cleaning equipment to improve the purifying effect to the flue gas, guarantee operation environment's security.

As shown in fig. 1, the guide plate 8 is inclined towards one end of the smoke flowing, and at least two guide plates 8 are arranged, so that condensed water can be discharged from the condensed water outlet 11 along the guide plate 8, thereby avoiding the accumulation of the condensed water in the cooling pipe group 1 and ensuring the efficient operation of the cooling pipe group 1.

As shown in fig. 3, the cooling water pipe 9 is at least provided with nine rows, the heat exchanger fins 91 are installed on the inner side of the cooling water pipe 9, nine rows are at least provided, so that the high-temperature flue gas can be in full contact with the cooling water pipe 9, but the heat exchanger fins 91 are not limited to being installed with nine rows, and the selection is preferred according to actual requirements, meanwhile, the heat exchanger fins 91 can increase the contact area with the high-temperature flue gas, so that the heat transfer to the cooling water pipe 9 is accelerated, and the conversion efficiency of the cooling pipe group 1 is improved.

Further, the outside of cooling tube group 1 is equipped with controller 12 that is connected with water pump 10, and the outside of water pump 10 is equipped with thermal-insulated cover, can control water pump 10 through controller 12, has guaranteed the steady flow of cooling water to this cooperation constantly cooperates the heat that absorbs entering flue gas and carry, reaches efficient energy conversion, thereby has improved the practicality and the reliability of device.

The utility model discloses a theory of operation and use flow: at first advance the pipe 3 with the cooling water through the cooling water and pour into the inside in cooling water chamber 2, then advance the inside that pipe 5 let in flue gas chamber 7 through the flue gas with high temperature flue gas, the high temperature flue gas is discharged through the position that corresponds condenser tube 9 behind the water conservancy diversion of flow distribution plate 51, then the high temperature flue gas is the S-shaped flow along guide plate 8, heat in the flue gas constantly enters into the inside cooling water of condenser tube 9 through condenser tube 9 among the flow process, the inside cooling water of condenser tube 9 of water pump 10 control flows simultaneously, the cooling water that carries the heat passes through condenser tube 4 and discharges, follow-up collection carries out, the flue gas that the cooling was accomplished passes through flue gas exit tube 6, discharge out after the purification of filter core 62, can.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The cooling pipe group for the condensing boiler comprises a cooling pipe group (1) and is characterized in that a cooling water cavity (2) is formed in the cooling pipe group (1), a cooling water inlet pipe (3) is fixedly installed at the left top of the cooling pipe group (1), a cooling water outlet pipe (4) is fixedly installed at the bottom of the right side of the cooling pipe group (1), a flue gas inlet pipe (5) is installed at the left lower part of the cooling pipe group (1), a flue gas outlet pipe (6) is installed at the upper part of the right side of the cooling pipe group (1), a flue gas chamber (7) is arranged in an inner cavity of the cooling pipe group (1), a guide plate (8) is installed in the middle of the flue gas chamber (7), cooling water pipes (9) are fixedly installed on the upper side and the lower side of the guide plate (8) respectively, and two ends of the cooling water pipes (9, one end of the cooling water pipe (9) is provided with a water pump (10), and the right lower corner of the front surface of the cooling pipe group (1) is provided with a condensed water outlet (11).

2. Cooling tube bank for a condensation boiler according to claim 1, characterized in that the housing of the cooling tube bank (1) is formed by a cylindrical water jacket in the middle and plate-like water jackets at both ends, and the cylindrical water jacket and the plate-like water jackets are detachably connected.

3. The cooling tube stack for a condensing boiler according to claim 1, characterized in that a splitter plate (51) is installed at one end of the inner side of the flue gas inlet pipe (5), and a plurality of exhaust ports corresponding to the cooling water pipes (9) are opened at the other side of the splitter plate (51).

4. Cooling tube stack for a condensing boiler according to claim 1, characterized in that a mesh frame (61) is mounted at one end of the outer side of the flue gas outlet tube (6), and a filter element (62) is arranged inside the mesh frame (61).

5. Cooling tube bank for a condensing boiler according to claim 1, characterized in that said baffles (8) are arranged obliquely to the end where the flue gases circulate, and that there are at least two baffles (8).

6. Cooling tube bank for a condensing boiler according to claim 1, characterized in that said cooling water tubes (9) are provided with at least nine rows of three, and that the inside of said cooling water tubes (9) is fitted with fins (91).

7. Cooling tube bank for a condensing boiler according to claim 1, characterized in that the outside of the cooling tube bank (1) is provided with a controller (12) connected to a water pump (10), and the outside of the water pump (10) is provided with a heat shield.