Modular energy-saving device for gas-fired boiler

Abstract

The utility model provides a modular energy-saving device for a gas-fired boiler, which aims at solving the problems of unreasonable structural design, unscientific condensate water collection and discharge, inconvenience in installation and maintenance and the like of the existing domestic gas-fired boiler energy-saving device. The device consists of a square box body (1), a water inlet main pipe (2), a coiled pipe energy saver (3), a mounting access hole (4), a water outlet main pipe (5), a square-round joint (6), a comb-shaped pipe clamp (7), a well-shaped bracket (8), a flue gas guide plate (9) and a condensate water discharge pipe (10). The device adopts a flue gas guide plate structure, so that the heat exchange effect of high-temperature flue gas and the coiled pipe energy saver is good, meanwhile, the device is convenient to maintain and replace, flue gas condensate water is more reliably collected and discharged, and the service life of the energy-saving device is longer.

Description

TECHNICAL FIELD

[0001] The utility model belongs to an energy-saving device, in particular to an energy-saving device for a gas-fired boiler. BACKGROUND

[0002] At present, the energy-saving device is matched with the gas-fired boiler which is widely used in China, the energy-saving device of this type is all in fixed installation mode, most of the energy-saving devices have unreasonable structure design, the condensate water collection and discharge is not scientific, the flue gas distribution is uneven, even the flue gas corridor phenomenon is generated, the heat exchange effect of the energy-saving device is reduced, once the energy-saving device pipe leaks, only the boiler can be stopped and removed and replaced, the maintenance cycle is long, and the normal use of the boiler is affected. SUMMARY

[0003] The utility model aims at designing and manufacturing a modular energy-saving device, and achieves the purposes of good heat exchange effect, long service life and convenient installation and maintenance.

[0004] The utility model is such a realization that: the modular energy-saving device, by square box (1), water inlet mother tube (2), serpentine pipe energy-saving device (3), installation and maintenance opening (4), water outlet mother tube (5), square round joint (6), comb pipe clamp (7), well type bracket (8), flue gas guide plate (9), condensate water discharge pipe (10) are formed. Through installation and maintenance opening (4), serpentine pipe energy-saving device (3) is pushed into well type bracket (8) in square box (1) and is fixed, is connected with water inlet mother tube (2) and water outlet mother tube (5), after installation and maintenance opening (4) is sealed and installed, energy-saving device can normally work;Boiler flue gas enters square box (1) from bottom to top, passes through flue gas guide plate (9) and well type bracket (8) in turn and enters serpentine pipe energy-saving device (3), high-temperature flue gas exchanges heat with low-temperature boiler feed water in serpentine pipe energy-saving device (3), low-temperature flue gas after heat exchange enters chimney and is discharged into the atmosphere through square round joint (6), and the condensate water generated by heat exchange is collected between flue gas guide plate (9) and square box (1) and is discharged through condensate water discharge pipe (10).

[0005] Serpentine pipe energy-saving device (3) is made of stainless steel pipe welded spiral fin.

[0006] Installation and maintenance opening (4) is made of angle steel welded flange frame, and the cover plate is made of steel plate.

[0007] Well type bracket (8) is welded by channel steel and is used for fixing serpentine pipe energy-saving device.

[0008] Flue gas guide plate (9) is made of steel plate, and the installation angle of the four sides of square box (1) is 30 °~45 °.

[0009] Condensate water discharge pipe (10) is provided with a water trap seal to prevent flue gas leakage in the square box.

[0010] The working principle of the utility model is: the boiler flue gas enters the modular energy-saving device from bottom to top, and enters the serpentine pipe economizer through the flue gas guide plate, the high-temperature flue gas exchanges heat with the low-temperature water in the serpentine pipe economizer, the flue gas after heat exchange is discharged from the top chimney, the condensate water generated by the flue gas after heat exchange enters the outside of the flue gas guide plate along the inner wall of the square box, is discharged through the condensate water discharge pipe, and the low-temperature boiler feed water enters the serpentine pipe economizer to absorb the heat of the high-temperature flue gas from the water inlet mother pipe and then enters the boiler through the water outlet mother pipe; the number of the serpentine pipe economizer can be designed and selected according to parameters such as the boiler smoke discharge capacity and the smoke discharge temperature.

[0011] The utility model discloses a technical effect that: due to the flue gas guide plate structure, the heat exchange area of the high-temperature flue gas and the serpentine pipe is increased, the flue gas flow rate is large, and the heat exchange effect is good; meanwhile, the energy-saving device is provided with a mounting and maintenance opening, which is convenient for disassembly, maintenance and replacement, the flue gas guide plate is increased, the flue gas condensate water collection and discharge are more reliable, the corrosion phenomenon can be effectively prevented, and the service life of the energy-saving device is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the application, and in the drawings Figure 1 is the structural schematic diagram of the utility model;

[0013] Among them,

[0014] 1, square box 2, water inlet mother pipe 3, serpentine pipe economizer 4, mounting and maintenance opening

[0015] 5, water outlet mother pipe 6, square round joint 7, comb pipe clamp 8, well type bracket

[0016] 9, flue gas guide plate 10, condensate water discharge pipe. DETAILED DESCRIPTION

[0017] The utility model is further described below in combination with the drawings: the square box (1) top and lower part are connected with the chimney through the square round joint (6), the box inside is equipped with well type bracket (8) and flue gas guide plate (9), the box outside is equipped with mounting and maintenance opening (4) and condensate water discharge pipe (10);Serpentine pipe economizer (3) is communicated with water inlet mother pipe (2) and water outlet mother pipe (5), is fixed outside through comb pipe clamp (7), serpentine pipe economizer (3) is installed on well type bracket (8) top, water inlet mother pipe (2) is connected with boiler feed water pipe, and water outlet mother pipe (5) is connected with boiler water inlet pipe.

[0018] The working procedure of the utility model is: the boiler feed water enters the serpentine pipe economizer through the water inlet mother pipe, is heated by the high-temperature flue gas and then enters the boiler through the water outlet mother pipe; the boiler high-temperature flue gas enters the square box through the square pipe section, enters the serpentine pipe economizer through the flue gas guide plate, is cooled by the low-temperature boiler feed water in the serpentine pipe economizer and then is discharged into the chimney, the condensed water produced after the high-temperature flue gas is cooled is collected at the bottom of the flue gas guide plate along the inner wall of the square box and is discharged through the condensed water discharge pipe.

[0019] It should be noted that the above specific embodiments can enable those skilled in the art to more fully understand the utility model, and those skilled in the art can understand and modify or replace the utility model; and all technical solutions and improvements that do not deviate from the principles and scope of the utility model should be covered in the protection scope of the utility model patent.

Claims

1. A modular energy-saving device for a gas-fired boiler, characterized in that: It consists of a square box (1), an inlet header (2), a serpentine tube energy saver (3), an installation and maintenance port (4), an outlet header (5), a square-round section (6), a comb-shaped pipe clamp (7), a well-shaped bracket (8), a flue gas guide plate (9), and a condensate discharge pipe (10). The square box (1) is connected to the square-round section (6). The well-shaped bracket (8) and the flue gas guide plate (9) are provided inside the box. The installation and maintenance port (4) and the condensate discharge pipe (10) are provided outside the square box (1). The serpentine tube energy saver (3) is connected to the inlet header (2) and the outlet header (5). The serpentine tube is fixed outside by the comb-shaped pipe clamp (7). The serpentine tube energy saver (3) is installed and fixed on the well-shaped bracket (8).

2. The modular energy-saving device for a gas-fired boiler according to claim 1, characterized in that... The flue gas guide plate (9) is made of steel plate, and its installation angle with the square box (1) is 30°~45°.

Images