CN203298639U

CN203298639U - Heat exchanger for flue gas

Info

Publication number: CN203298639U
Application number: CN2013202557523U
Authority: CN
Inventors: 冯育周; 江广华; 毛书样
Original assignee: GUANGZHOU JIEMA HEAT EXCHANGE EQUIPMENT CO Ltd
Current assignee: Guangdong Jiema Energy Saving Technology Co ltd
Priority date: 2013-05-10
Filing date: 2013-05-10
Publication date: 2013-11-20
Anticipated expiration: 2023-05-10

Abstract

The utility model discloses a heat exchanger for the flue gas, which comprises a cavity and a plurality of heat-exchange tubes. The cavity is provided with a flue gas inlet and a flue gas outlet, and the heat exchange pipe of the inlet and the outlet is arranged in the cavity body. The inlets and the outlets of all the heat-exchange tubes are arranged outside the cavity. According to the technical scheme of the utility model, a plurality of heat-exchange tubes, namely a plurality of heat-exchange loops, are adopted as a heat-exchange medium between the flue gas and to-be-heated objects. When the flue gas passes through the cavity, the heat-exchange process occurs between the to-be-heated objects in the plurality of heat-exchange tubes and the flue gas. Therefore, the heat-exchange area per unit space is increased and the heat-exchange efficiency is improved. Meanwhile, the heat of the flue gas is effectively recovered.

Description

Flue gas heat-exchange unit

Technical field

The utility model relates to a kind of heat-exchange device, particularly a kind of flue gas heat-exchange unit that utilizes heat exchanger tube that the heat in flue gas is reclaimed.

Background technology

Contain a large amount of heat energy in flue gas, if do not recycled, the most of waste heat in flue gas can be taken away by flue gas, causes the waste of resource.

The utility model content

The purpose of this utility model is to provide a kind of flue gas heat-exchange unit.

According to an aspect of the present utility model, a kind of flue gas heat-exchange unit is provided, comprise cavity and many group heat exchanger tubes.

Cavity is provided with gas approach and exhanst gas outlet.

The cavity outside is located in the import of heat exchanger tube and outlet, and the body of heat exchanger tube is located at inside cavity.

It is the media of a plurality of heat-exchanging loops as flue gas and heating object heat-shift that the utility model adopts a plurality of heat exchanger tubes, when flue gas passes through cavity, with the heating object generation heat exchange in a plurality of heat exchanger tubes, increased the heat exchange area in unit space, improve heat exchange efficiency, effectively reclaimed the heat in the flue gas.

In some embodiments, can also comprise the first end cap and the second end cap, first end is covered on an end of cavity, the second end cap is located on the other end of cavity, first end covers and is provided with import and outlet, be provided with dividing plate in the first end cap, be respectively equipped with orifice plate on the two ends port of cavity, intert respectively in two orifice plates at the two ends of heat exchanger tube.Thus, the dividing plate in the first end cap can be kept apart flowing into the heating object of heat exchanger tube and the heating object of outflow heat exchanger tube, and inflow and the outflow of heating object in heat exchanger tube is independent of each other.

In some embodiments, the number of heat exchanger tube can be ten.Thus, a plurality of heat exchanger tubes can improve the heat exchange area in unit space, have improved heat exchange efficiency.

In some embodiments, can be provided with fin on heat exchanger tube.Thus, fin can further improve heat exchange efficiency, improves the heat exchange area in unit space.

In some embodiments, cavity can be provided with heat-insulation layer on every side.Thus, the heat-insulation layer around cavity can reduce heat in flue gas and sees through the thermal loss of cavity.

In some embodiments, can be provided with support on cavity.Thus, can support cavity, guarantee that flue gas heat-exchange unit places stably.

Description of drawings

Fig. 1 is the perspective view of a kind of embodiment of the utility model;

Fig. 2 is the structural representation of facing that flue gas heat-exchange unit shown in Figure 1 is hidden heat-insulation layer;

Fig. 3 is that flue gas heat-exchange unit shown in Figure 2 is not hidden the left TV structure schematic diagram of heat-insulation layer;

Fig. 4 is the right TV structure schematic diagram of the first end cap of flue gas heat-exchange unit shown in Figure 2;

Fig. 5 is the structural representation that flue gas heat-exchange unit shown in Figure 3 is hidden the first end cap;

Fig. 6 is the right TV structure schematic diagram that flue gas heat-exchange unit shown in Figure 2 is not hidden heat-insulation layer, hiding the second end cap;

Fig. 7 is the structural representation of heat exchanger tube in flue gas heat-exchange unit shown in Figure 2;

Fig. 8 is the use state diagram of flue gas heat-exchange unit shown in Figure 1.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in more detail.

Fig. 1 to Fig. 7 has schematically shown the structural representation of the flue gas heat-exchange unit of a kind of embodiment of the utility model.

As shown in Figures 1 to 7, flue gas heat-exchange unit comprises cavity 1 and heat exchanger tube 2.In addition, can also comprise the first end cap 3, the second end cap 4, orifice plate 5, heat-insulation layer 6 and support 7.

Offer gas approach 11 and exhanst gas outlet 12 on cavity 1.

Offer import 31 and outlet 32 on the first end cap 3.

As shown in Figure 2, the first end cap 3 is fixed on the left end of cavity 1, the second end cap 4 is fixed on the right-hand member of cavity 1, heat exchanger tube 2 is rectilinear form (as shown in Figure 7), the number of heat exchanger tube 2 is ten, is welded with dividing plate 33 in the first end cap 3, is fixed with respectively orifice plate 5 on the two ends port of cavity 1, offer ten heat exchange pores on orifice plate 5, intert respectively in two orifice plates 5 (as shown in Figure 5 and Figure 6) at the two ends of each heat exchanger tube 2.Dividing plate 33 can be kept apart flowing into the heating object of heat exchanger tube 2 and the heating object of outflow heat exchanger tube 2, and inflow and the outflow of heating object in heat exchanger tube 2 is independent of each other.In other embodiments, the number of heat exchanger tube 2 can change as required.

As shown in Figure 7, in the present embodiment, be fixed with fin 21 on heat exchanger tube 2, fin 21 can further improve heat exchange efficiency, improves the heat exchange area in unit space.In other embodiments, can be not on heat exchanger tube 2 yet fixing fin 21.

Be fixed with heat-insulation layer 6 around cavity 1, heat-insulation layer 6 can reduce heat in flue gas and see through the thermal loss of cavity 1.

Being welded with 7, two supports 7 of two supports on cavity 1 can support cavity 1, guarantees that flue gas heat-exchange unit places stably.

Fig. 8 has schematically shown the use state diagram of flue gas heat-exchange unit shown in Figure 1.

As shown in Figure 8, flue gas 11 is passed into the cavity 1 of flue gas heat-exchange unit along the A direction from gas approach, and along the B direction from exhanst gas outlet, flows out 12; Water 31 is passed into the heat exchanger tube 2 of cavity 1 inside along the C direction from import, and water flows out from exporting 32 along the D direction through ten heat exchanger tubes 2; When flue gas flow through from cavity 1, the water in flue gas and ten heat exchanger tubes 2 carried out exchange heat, and namely the waste heat in flue gas can heat the water in heat exchanger tube 2, and the water after heating can be used for having a bath etc.Because the number of heat exchanger tube 2 is to be fixed with fin 21 on ten and heat exchanger tube 2, heat exchange efficiency is improved, and has effectively reclaimed the heat in the flue gas.

Above-described is only a kind of embodiment of the present utility model.For the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims

1. flue gas heat-exchange unit, is characterized in that, comprises cavity (1) and a plurality of heat exchanger tube (2),

Described cavity (1) is provided with gas approach (11) and exhanst gas outlet (12),

Described cavity (1) outside is located in the import of described heat exchanger tube (2) and outlet, and the body of described heat exchanger tube (2) is located at described cavity (1) inside.

2. flue gas heat-exchange unit according to claim 1, it is characterized in that, also comprise the first end cap (3) and the second end cap (4), the first end cap (3) is located on an end of cavity (1), the second end cap (4) is located on the other end of cavity (1), the first end cap (3) is provided with import (31) and outlet (32), be provided with dividing plate (33) in the first end cap (3), be respectively equipped with orifice plate (5) on the two ends port of described cavity (1), intert respectively in described two orifice plates (5) at the two ends of described heat exchanger tube (2).

3. flue gas heat-exchange unit according to claim 2, is characterized in that, the number of described heat exchanger tube (2) is ten.

4. the described flue gas heat-exchange unit of arbitrary claim according to claim 1～3, is characterized in that, described heat exchanger tube (2) is provided with fin (21).

5. flue gas heat-exchange unit according to claim 4, is characterized in that, is provided with heat-insulation layer (6) around described cavity (1).

6. flue gas heat-exchange unit according to claim 5, is characterized in that, described cavity (1) is provided with support (7).