CN217442297U

CN217442297U - Novel energy-saving boiler air heater

Info

Publication number: CN217442297U
Application number: CN202220984926.9U
Authority: CN
Inventors: 李锐; 穆绪勇; 黄华波; 韦亚洲
Original assignee: Lianyungang Lide Power Equipment Co ltd
Current assignee: Lianyungang Lide Power Equipment Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-09-16
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses a novel energy-saving boiler air heater, which belongs to the technical field of heat exchangers and is characterized in that the novel energy-saving boiler air heater comprises a frame shell and a steam header, wherein the frame shell is internally provided with the steam header, the steam header comprises a heat exchange pipe, a steam side and a hydrophobic side, the steam side is connected with the hydrophobic side through the heat exchange pipe, the heat exchange pipe comprises a base pipe and fins, the fins are arranged outside the base pipe, the heat exchange pipe is externally provided with a fixed plate, the fixed plate is connected with the frame shell, the upper part of the left side of the hydrophobic side is provided with a steam inlet pipe, the steam inlet pipe is provided with a connecting flange I, the lower part of the right side of the hydrophobic side is provided with a steam outlet pipe, the lower part of the steam outlet pipe is provided with a connecting flange III, the connecting flange I, the connecting flange II and the connecting flange III have the same structure, and the technical problems of complicated structure and energy waste of the existing equipment are solved, the method is mainly applied to steam heat exchange.

Description

Novel energy-saving boiler air heater

Technical Field

The utility model belongs to the technical field of the heat exchanger, concretely relates to novel energy-conserving boiler air heater.

Background

The boiler air heater is a heat exchanger which heats the air at the inlet of the air preheater by using the low-pressure extracted steam of a steam turbine. The boiler air heater is installed between the outlet of the blower and the inlet of the air preheater, so the boiler air heater is also called a front-mounted air preheater. Install the air heater additional, make the air temperature who gets into air heater rise, air heater wall temperature risees to can prevent low temperature corrosion, but partial air heater has a lot of energy when using because do not obtain the waste that utilizes the energy that causes, and current air heater structure is complicated, and heat exchange efficiency is low, and based on this, I institute develops novel energy-conserving boiler air heater and replaces prior art.

SUMMERY OF THE UTILITY MODEL

The purpose of the invention is as follows: the utility model aims at providing a novel energy-conserving boiler air heater to solve the technical problem who proposes in the above-mentioned background art.

The novel energy-saving boiler air heater is characterized by comprising a frame shell and a steam header, wherein the steam header is arranged in the frame shell and comprises a heat exchange tube, a steam side and a hydrophobic side, the steam side and the hydrophobic side are connected through the heat exchange tube, the heat exchange tube comprises a base tube and fins, the fins are arranged outside the base tube, a fixing plate is arranged outside the heat exchange tube and connected with the frame shell, a steam inlet tube is arranged at the upper part of the left side of the hydrophobic side, a connecting flange I is arranged on the steam inlet tube, a steam outlet tube is arranged at the lower part of the right side of the hydrophobic side, a connecting flange II is arranged on the steam outlet tube, a hydrophobic outlet tube is arranged at the lower part of the steam outlet tube, a connecting flange III is arranged on the hydrophobic outlet tube, and the connecting flange I, the connecting flange II and the connecting flange III have the same structure, connecting flange I on be equipped with the screw hole, screw hole lower part be equipped with the seal groove, screw hole and seal groove be used for being connected extra part, wherein the seal groove is used for the installation sealed, when the novel energy-conserving boiler air heater of this application used, high-temperature steam enters into the steam side of steam header through steam inlet pipe, the steam header has guaranteed the inside of the even stable entering heat exchange tube of high-temperature steam, and simultaneously, cold wind blows to the right side from the heat exchange tube left side, cold wind skips from the heat exchange tube surface and carries out the heat transfer, the superheated steam condensation in the heat exchange tube is exothermic to saturated steam among the heat transfer process, the recondenstion is exothermic to saturated water, saturated water is discharged from hydrophobic outlet pipe, on the other hand part steam of the complete heat transfer condensation passes through steam outlet pipe and discharges.

Preferably: in order to sense the temperature in the steam header in real time, a temperature sensor is arranged on the steam side.

Preferably: in order to improve the corrosion resistance of the heat exchange tube, the base tube and the fins are integrally rolled and formed.

Preferably: in order to facilitate overhauling and hoisting, the frame shell is further provided with a group of lifting lugs.

Compared with the prior art, the utility model has the advantages of it is following: the heat exchange tube is integrally rolled and formed through the base tube and the fins, the heat transfer performance is good, the thermal resistance is not contacted, the thermal expansion performance is good, and a considerable expansion heat transfer surface is provided, the base tube and the fins can not be subjected to electrochemical corrosion in the using process, on the other hand, the integrally rolled and formed heat exchange tube has higher strength and rigidity, when the heat exchange tube is used, high-temperature steam enters the steam side of the steam header through the steam inlet tube, the steam header ensures that the high-temperature steam uniformly and stably enters the inside of the heat exchange tube, meanwhile, cold air blows from the left side to the right side of the heat exchange tube, the cold air slightly passes through the surface of the heat exchange tube for heat exchange, superheated steam in the heat exchange tube condenses and releases heat to form saturated steam in the heat exchange process, the heat is condensed to form saturated water, the saturated water is discharged from the drainage outlet tube, on the other hand, partial steam which does not completely exchange condensation is discharged through the steam outlet tube, and the whole structure is more reasonable, therefore, the production cost is low, and the method is suitable for comprehensive popularization and application.

Drawings

FIG. 1 is a front view of a new energy-saving boiler air heater;

FIG. 2 is a side view of the new energy-saving boiler air heater;

FIG. 3 is a cross-sectional view of a heat exchange tube of a novel energy-saving boiler air heater.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1:

as shown in fig. 1-3:

the novel energy-saving boiler air heater is characterized by comprising a frame shell 1 and a steam header 2, wherein the steam header 2 is arranged inside the frame shell 1, the steam header 2 comprises a heat exchange tube 3, a steam side 6 and a hydrophobic side 7, the steam side 6 is connected with the hydrophobic side 7 through the heat exchange tube 3, the heat exchange tube 3 comprises a base tube 4 and fins 5, the fins 5 are arranged outside the base tube 4, a fixing plate 8 is arranged outside the heat exchange tube 3, the fixing plate 8 is connected with the frame shell 1, a steam inlet tube 9 is arranged on the upper portion of the left side of the hydrophobic side 7, a connecting flange I10 is arranged on the steam inlet tube 9, a steam outlet tube 11 is arranged on the lower portion of the right side of the hydrophobic side 7, a connecting flange II 12 is arranged on the steam outlet tube 11, and a hydrophobic outlet tube 13 is arranged on the lower portion of the steam outlet tube 11, hydrophobic outlet pipe 13 on be equipped with flange III 14, flange I10, flange II 12 and flange III 14 the same structure, flange I10 on be equipped with screw hole 15, screw hole 15 lower part be equipped with seal groove 16, steam side 6 be equipped with temperature sensor 17, frame casing 1 on still be equipped with a set of lug 18.

The utility model discloses a use method as follows: the utility model provides a when novel energy-conserving boiler air heater uses, high temperature steam enters into steam header 2's steam side 6 through steam inlet pipe 9, steam header 2 has guaranteed the even stable inside that gets into heat exchange tube 3 of high temperature steam, and simultaneously, cold wind blows from heat exchange tube 3 left side right side, cold wind skips from heat exchange tube 3 surface and carries out the heat transfer, superheated steam condensation in the heat exchange tube 3 among the heat transfer process is exothermic to become saturated steam, the recondenstion is exothermic to become saturated water, the saturated water is discharged from hydrophobic outlet pipe 13, the steam of the partial complete heat transfer condensation of on the other hand passes through steam outlet pipe 11 and discharges.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims

1. The novel energy-saving boiler air heater is characterized by comprising a frame shell (1) and a steam header (2), wherein the steam header (2) is arranged inside the frame shell (1), the steam header (2) comprises a heat exchange tube (3), a steam side (6) and a hydrophobic side (7), the steam side (6) is connected with the hydrophobic side (7) through the heat exchange tube (3), the heat exchange tube (3) comprises a base tube (4) and fins (5), the base tube (4) is externally provided with the fins (5), the heat exchange tube (3) is externally provided with a fixing plate (8), the fixing plate (8) is connected with the frame shell (1), the upper part of the left side of the hydrophobic side (7) is provided with a steam inlet tube (9), the steam inlet tube (9) is provided with a connecting flange I (10), the lower part of the right side of the hydrophobic side (7) is provided with a steam outlet tube (11), steam outlet pipe (11) on be equipped with flange II (12), steam outlet pipe (11) lower part be equipped with hydrophobic outlet pipe (13), hydrophobic outlet pipe (13) on be equipped with flange III (14), flange I (10), flange II (12) and flange III (14) the same structure, flange I (10) on be equipped with screw hole (15), screw hole (15) lower part be equipped with seal groove (16).

2. The new energy saving boiler air heater according to claim 1, characterized in that: the steam side (6) is provided with a temperature sensor (17).

3. The new energy saving boiler air heater according to claim 2, characterized in that: the base pipe (4) and the fins (5) are integrally formed by rolling.

4. The new energy saving boiler air heater according to claim 1, characterized in that: the frame shell (1) is also provided with a group of lifting lugs (18).