CN201964808U - Online dust removal tube-box heat exchanger - Google Patents

Abstract

The utility model relates to an online dust removal tube-box heat exchanger which comprises a box body, and a heat exchanger component and a dust removal component in the box body. The heat exchanger component comprises a heat exchange tube, a tube plate, a fume inlet, a fume outlet, a traverse baffle, an air inlet and an air outlet; two ends of the heat exchange tube are fixed on the tube plate; the tube plate is fixed in the box body and divides the box body into a fume outlet cavity, an air channel and a fume inlet cavity; the dust removal component comprises a blowing device and a dust collecting device; the blowing device is installed in a fume outlet cavity; the dust collecting device comprises a dust retainer, a dust discharge valve and a dust discharge opening; and the dust retainer is installed below a fume inlet cavity. The online dust removal tube-box heat exchanger has the advantages that an online dust removal function is added to the heat exchanger, so that the heat exchanger also has the function of dust removal, therefore, the occupied space of equipment is saved, the investment cost of the equipment is reduced, heat energy is effectively utilized, environment is protected simultaneously, and a multipurpose measure is adopted.

Description

A kind of box type heat exchanger of online dedusting black dirt

Technical field:

The utility model relates to the heat-exchange device that a kind of heat exchange medium does not directly contact, more specifically to a kind of box type heat exchanger of online dedusting black dirt.

Background technology:

In the industrial production, all kinds of heat exchangers are widely used and carry out heat exchange at present, wherein use the most general with shell-and-tube heat exchanger.When high-temperature flue gas during by shell-and-tube heat exchanger tube side or shell side, dust in the flue gas or crock will be gradually attached to heat exchange surface, increase the thermal resistance of heat exchange surface, reduce heat exchange efficiency; When dust or crock accumulate to a certain degree and can seriously stop up exhaust gases passes, cause the heat exchanger paralysis.Had a strong impact on like this and industrially carried out smoothly, and caused enormous economic loss.For addressing this problem, conventional way is that heat recovery heat exchanger and dust separator are installed on the dust-laden flue simultaneously, but thing followed problem is: cause equipment to take up an area of a series of problems to be solved such as space increase, investment cost increase, operation cost increase and come one after another.

The utility model content:

The purpose of this utility model is the box type heat exchanger of the online dedusting black dirt that provides at the prior art weak point under a kind of state of the normal operation of equipment in industrial production, can remove attached to heat exchange surface dust or crock.

The purpose of this utility model is to realize by following measure: a kind of box type heat exchanger of online dedusting black dirt, comprise casing, and it is characterized in that, include heat exchanger component, dedusting parts in the casing, wherein:

Described heat exchanger component is by heat exchanger tube, tube sheet, gas approach, exhanst gas outlet, deflection plate, air intlet, air outlet slit are formed, the heat exchanger tube two ends are fixed on the tube sheet, tube sheet is fixed in the casing casing is divided into exhanst gas outlet chamber, air duct, gas approach chamber, gas approach through the gas approach chamber, heat exchanger tube, exhanst gas outlet chamber be communicated with exhanst gas outlet, air intlet and air outlet slit are positioned at the air duct upper and lower end, and deflection plate is zigzag and is arranged in the air duct;

Described dedusting parts are made up of blowing device and collection apparatus for ash, described blowing device is to be installed in the winding-up pipe in exhanst gas outlet chamber and the nozzle composition of pipe end, winding-up pipe nozzle and heat exchanger tube are installed in heat exchanger tube mouth of pipe top correspondingly, and it is external that winding-up pipe inlet tube connects overhanging outlet; Described collection apparatus for ash is made up of flue-dust retainer, ash-valve, ash discharging hole, and flue-dust retainer is installed in below, gas approach chamber, and ash-valve is between flue-dust retainer and ash discharging hole.

Offer access cover on the described exhanst gas outlet top of chamber casing.

Compared with prior art, the following advantage of box type heat transfer equipment of the online dedusting black dirt that the utility model proposes: 1) online dedusting is attached on the heat exchanger, heat exchanger has been taken into account dedusting function, saved the cost of investment that equipment takes up an area of the space, reduced equipment, having protected environment when effectively utilizing heat energy again, is the measure of achieving many things at one stroke; 2) dust and the crock in the regular removing scavenge trunk reduces thermal resistance, prolonged the service life of heat exchanger, improved heat exchange efficiency; 3) simple in structure, be easy to make, can promote the use of.

Description of drawings:

Fig. 1 is an embodiment longitudinal profile of a utility model structural representation.

Figure labeling description: ash discharging hole-1 ash-valve-2 flue-dust retainer-3 gas approach-4 air outlet slit-5 casing-6 deflection plate-7 air intlet-8 exhanst gas outlet-9 access cover-10 tube sheet-11 winding-up pipe-12 nozzles-13 heat exchanger tube-14

The specific embodiment:

Below in conjunction with accompanying drawing the specific embodiment is elaborated: Fig. 1 is an embodiment longitudinal profile of a utility model structural representation.Among the figure, a kind of box type heat exchanger of online dedusting black dirt comprises casing 6, includes heat exchanger component, dedusting parts in the casing 6, wherein:

Described heat exchanger component is by heat exchanger tube 14, tube sheet 11, gas approach 4, exhanst gas outlet 9, deflection plate 7, air intlet 8, air outlet slit 5 are formed, heat exchanger tube 14 two ends are fixed on the tube sheet 11, tube sheet 11 is fixed in the casing 6 casing is divided into exhanst gas outlet chamber, air duct, gas approach chamber, gas approach 4 through the gas approach chamber, heat exchanger tube 14, exhanst gas outlet chamber be communicated with exhanst gas outlet 9, air intlet 8 and air outlet slit 5 are positioned at the air duct upper and lower end, and deflection plate 7 is zigzag and is arranged in the air duct;

Described dedusting parts are made up of blowing device and collection apparatus for ash, described blowing device is to be installed in the winding-up pipe 12 in exhanst gas outlet chamber and nozzle 13 compositions of pipe end, winding-up pipe 12 nozzles 13 are installed in heat exchanger tube 14 mouths of pipe top correspondingly with heat exchanger tube 14, and winding-up pipe 12 inlet tubes connect and overhangingly go out outside the casing 6; Described collection apparatus for ash is made up of flue-dust retainer 3, ash-valve 2, ash discharging hole 1, and flue-dust retainer 3 is installed in below, gas approach chamber, and ash-valve 2 is between flue-dust retainer 3 and ash discharging hole 1.

For ease of overhauling conveniently, the utility model offers access cover 10 on exhanst gas outlet top of chamber casing.

Device of the present utility model is work like this: when flue gas enters heat exchanger casing 6 gas approach chambers by gas approach 4, again by being fixed on the heat exchanger tube 14 on the tube sheet 11, the air in the high-temperature flue gas and heat exchanger tube 14 outsides carries out exchange heat around here, and the part dust that flue gas is brought into can adhere to fouling by continuous inner surface attached to heat exchanger tube 14.The flue gas of crossing through exchange heat flows out heat exchanger tube 14, is flowed out by exhanst gas outlet 9 to enter the flue gas house steward.The air of being brought by blower fan enters the air duct of heat exchanger casing 6 by air intlet 8, air in the air duct that deflection plate 7 and heat exchanger casing 6 constitute constantly with the high-temperature flue gas heat exchange of heat exchanger tube 14 inboards, the air that obtains heat is discharged outside the heat exchanger casing 6 by air outlet slit 5, enters next process.

Dust that adheres to when heat exchanger tube 14 inner surfaces or dirt gather when too much, the heat exchanger heat exchange efficiency descends, can in winding-up pipe 12, feed gases at high pressure, gases at high pressure are by being suspended from the nozzle 13 on heat exchanger tube 14 center lines, exchange heat pipe 14 carries out gases at high pressure and purges, make dust or the crock adhere to or to stick to the heat exchanger tube inner surface in time to come off, and finally fall into flue-dust retainer 3; Grey dust and dirt reaches limit value in flue-dust retainer 3, and ash-valve 2 is opened, and grey dust and dirt will be discharged heat exchanger casing 6 by ash discharging hole 1.

When seriously stopping up in the heat exchanger tube 14, under the state of flue gas circulation difficulty, can in winding-up pipe 12, feed water under high pressure, water under high pressure is by being suspended from the nozzle 13 on heat exchanger tube 14 center lines, and exchange heat pipe 14 carries out water under high pressure and cleans, at this moment, ash-valve 2 is opened, with dust or the crock that washes in the heat exchanger tube 14,, discharge heat exchanger directly by ash discharging hole 1.

When heat exchanger tube 14 heavy corrosions, obstruction or gases at high pressure and water under high pressure, the grey dust and dirt in the heat exchanger tube 14 can't be removed when clean, can open access cover 10, the heat exchanger tube that the heat exchanger tube 14 that obstacle is arranged is manually cleaned or more renews.

The foregoing description does not constitute restriction of the present utility model, and all employings are equal to the technical scheme that form obtained of replacement or equivalent transformation, all drop within the protection domain of the present utility model.

Claims (2)

1. the box type heat exchanger of an online dedusting black dirt comprises casing, it is characterized in that, includes heat exchanger component, dedusting parts in the casing, wherein:

Described heat exchanger component is by heat exchanger tube, tube sheet, gas approach, exhanst gas outlet, deflection plate, air intlet, air outlet slit are formed, the heat exchanger tube two ends are fixed on the tube sheet, tube sheet is fixed in the casing casing is divided into exhanst gas outlet chamber, air duct, gas approach chamber, gas approach through the gas approach chamber, heat exchanger tube, exhanst gas outlet chamber be communicated with exhanst gas outlet, air intlet and air outlet slit are positioned at the air duct upper and lower end, and deflection plate is zigzag and is arranged in the air duct;

Described dedusting parts are made up of blowing device and collection apparatus for ash, described blowing device is to be installed in the winding-up pipe in exhanst gas outlet chamber and the nozzle composition of pipe end, winding-up pipe nozzle and heat exchanger tube are installed in heat exchanger tube mouth of pipe top correspondingly, and it is external that winding-up pipe inlet tube connects overhanging outlet; Described collection apparatus for ash is made up of flue-dust retainer, ash-valve, ash discharging hole, and flue-dust retainer is installed in below, gas approach chamber, and ash-valve is between flue-dust retainer and ash discharging hole.

2. the box type heat exchanger of online dedusting black dirt according to claim 1 is characterized in that, offers access cover on the described exhanst gas outlet top of chamber casing.