CN2085945U

CN2085945U - Heat pipe heat-exchanger of gas-gas, gas-liquid mix type

Info

Publication number: CN2085945U
Application number: CN 91210343
Authority: CN
Inventors: 郑显明; 张序成
Original assignee: DANDONG CITY BLOWER FACTORY
Current assignee: DANDONG CITY BLOWER FACTORY
Priority date: 1991-03-23
Filing date: 1991-03-23
Publication date: 1991-10-02

Abstract

The utility model discloses a mixed type heat pipe heat exchanger which can make an air-air type heat pipe heat exchanger and an air-liquid type heat pipe heat exchanger integrated together. An air-air type heat exchange unit which comprises a partition plate and a bundle of heat pipes, and an air-liquid type heat exchange unit which comprises a header and the other bundle of the heat pipes are installed in a same shell body. The evaporating sections of the two bundles of the heat pipes are arranged along the flow direction of flue gas in series. The trends of a flue gas passage and an air passage are arranged vertically or in parallel. The utility model has the advantages of compact structure, convenient manufacture, convenient installation, and convenient sealing, and is applied to waste heat recovery of low temperature, middle temperature, and high temperature.

Description

Heat pipe heat-exchanger of gas-gas, gas-liquid mix type

The utility model relates to and a kind of gas-gas type heat exchange of heat pipe and gas-liquid type heat exchange of heat pipe is resided in the mixed type heat exchange of heat pipe of one, is applicable to that the smoke pre-heating of Industrial Boiler, kiln reclaims.

Disclose a kind of combined heat exchange of heat pipe in CN88217498, it is to be one group of open type heat pipe of arranged in series and one group of hermetic type heat pipe composition that has protective sleeve on the flow of flue gas direction.The open type heat pipe is used to add hot water; the hermetic type heat pipe of band protective sleeve is used to add its weak point of hot-air and is, every heat pipe in one group of heat pipe of band protective sleeve must add hot-air and water two media simultaneously, makes its structure complicated; manufacturing is installed, sealing is all pretty troublesome, and maintenance is also inconvenient.

The purpose of this utility model is to provide a kind of every heat pipe all only to be used to heat a kind of fluid, and is applicable to gas-gas, the solution-air mixed type heat exchange of heat pipe of low temperature, middle high-temperature flue gas waste heat recovery.

Technical solution of the present utility model is, gas-gas, the solution-air mixed type heat exchange of heat pipe formed by gas-gas type heat exchange of heat pipe and gas-liquid type heat exchange of heat pipe, wherein the heat exchange unit of gas-gas type heat exchange of heat pipe is formed by dividing plate 1 with by the heat pipe bundle 2 that dividing plate 1 is separated into evaporator section and condensation segment, and the heating unit of gas-liquid type heat exchange of heat pipe is made up of header 3 and heat pipe bundle 5 that condensation segment is inserted and is sealingly fastened on the header 3.Above-mentioned two kinds of heat exchange units are installed in the heat exchanger shell 7 jointly, the evaporator section of heat pipe bundle 2 and heat pipe bundle 5 are placed in the exhaust gases passes 8, and make it to be arranged in series along the flow of flue gas direction, the condensation segment of heat pipe bundle 2 places in the air duct 4.Air duct 4 is perpendicular or parallel with the orientation of exhaust gases passes 8.

In the utility model, header 3 is the cylinder barrel shaped pressure vessel, and an end face of header is the plane, and the condensation segment of heat pipe bundle 5 inserts container and sealing and fixing on header from planar end.

Following accompanying drawing has been described embodiment of the present utility model:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the utility model second embodiment.

Fig. 4 is the vertical view of Fig. 3.

Fig. 1, Fig. 2 are for being common to the embodiment of low temperature and middle high-temperature flue gas waste heat recovery.1 is dividing plate among the figure, and 2 for being used to add the heat pipe bundle that hot-air is used, and the vertically interspersed also sealing and fixing of every heat pipe in the heat pipe bundle 2 is on dividing plate 1.Heat pipe is divided into evaporator section with dividing plate and condensation segment two parts dividing plate 1 is fixedly installed on the framework of housing 7, heat pipe evaporator section is placed in the exhaust gases passes 8, condensation segment places in the air duct 4, the orientation of exhaust gases passes 8 and air duct 4 is vertical mutually, makes the perpendicular cross flow one heat exchange of flue gas and air.3 is header among the figure, and 5 for being used to add the heat pipe bundle of hot water, and header 3 can adopt square chest, and can only use this moment as common water heater.Present embodiment is used as economizer, header 3 adopts the cylinder barrel shaped pressure vessel, cylindrical tube one end face is the plane, and the condensation segment of every heat pipe of heat pipe bundle 5 inserts and is weldingly fixed on the header 3 from planar end surface, and the bottom surface of header 3 is fixedly mounted on the end face housing of exhaust gases passes 8.The evaporator section of heat pipe bundle 5 places in the exhaust gases passes 8, and be arranged in series along the flow of flue gas direction with

heat pipe bundle

2,6,9 is smoke entrance among the figure, and 10,11 is air ports, and 12,13 are the boiler feedwater import and export, when flue-gas temperature is low, when for example the cigarette temperature was lower than 400 ℃, 9 as smoke inlet among the figure, and 6 is exhanst gas outlet, promptly earlier add hot-air, and then add hot water with higher cigarette temperature.When the cigarette temperature surpassed 400 ℃, 6 be smoke inlet, and 9 as exhanst gas outlet, added hot water with high-temperature flue gas promptly earlier, made below the cigarette temperature drop to 400 ℃, and then was used to add hot-air.

Fig. 3, Figure 4 shows that the embodiment that is applicable to the high-temperature flue gas waste heat recovery, it is that with the difference of the foregoing description exhaust gases passes 8 parallels with air duct 4 orientations, be flue gas and air inversion heat exchange, 6 is smoke inlet among the figure, 9 is exhanst gas outlet, 10 is cool air inlet, hot air outlet 11 as shown in Figure 3, air duct 4 prolongations are made it a header 3 wrap in the inside, leave hot air outlet 11 then from an one side and adopt this structure flue gas and air inversion heat exchange on the one hand, heat exchange efficiency can be improved, the heat exchanger structure compactness can be made on the other hand.

The utility model has the advantage of, the one, so fully separately be that every heat pipe only is used for heating the manufacturing of a kind of fluid, installs, sealing is all very convenient, compact conformation for heating water and the heat pipe that adds hot-air. The 2nd, according to cigarette temperature height, as long as transposing flue gas gateway adopts water steel heat pipe also can be applicable to low temperature, middle high-temperature flue gas waste heat recovery. The 3rd, add the precedence of hot-air and water by different grade residual heat resources reasonable arrangements, improve to greatest extent heat exchange efficiency, rationally utilize residual heat resources.

Claims

1, a kind of gas-gas, solution-air mixed type heat exchange of heat pipe, comprise housing 7, dividing plate 1, heat pipe, smoke entrance, water entrance, air ports, it is characterized in that:

A dividing plate 1 and form the gas-gas heat exchange unit by the heat pipe bundle 2 that dividing plate 1 is divided into evaporator section and condensation segment;

B inserts by header 3 with condensation segment and the heat pipe bundle 5 of sealing and fixing on header 3 formed the gas-liquid type heat exchange unit;

C is installed on the heat exchange unit of gas-gas heat exchange unit and gas-liquid type among a, the b in the same housing 7, the evaporator section of its heat pipe bundle 2 and heat pipe bundle 5 places the exhaust gases passes 8 of housing 7, and be arranged in series along the flow of flue gas direction, the condensation segment of heat pipe bundle 2 places the air duct 3 of housing 7;

The trend of d air duct 3 and exhaust gases passes 8 is vertical or parallel.

2, mixed type heat exchange of heat pipe according to claim 1 is characterized in that header 3 is the cylinder barrel shaped pressure vessel, and an end face of header 3 is for being plane, and the condensation segment of heat pipe bundle 5 inserts also sealing and fixing thereon from planar end surface.