CN202973985U

CN202973985U - Tube type heat exchanger

Info

Publication number: CN202973985U
Application number: CN 201220575752
Authority: CN
Inventors: 胡福昌; 王正郁; 王浩熹
Original assignee: DAXIGANLING FOREST ENERGY TECHNOLOGY Co Ltd
Current assignee: DAXIGANLING FOREST ENERGY TECHNOLOGY Co Ltd
Priority date: 2012-10-25
Filing date: 2012-10-25
Publication date: 2013-06-05
Anticipated expiration: 2022-10-25

Abstract

The utility model discloses a tube type heat exchanger, which is suitable for processing biomass gas with big dust and tar amount. The tube type heat exchanger consists of tubes (1), a flow guidance baffle (2), a lower channel (6), a tube plate (4), a shell (8), an upper channel (10) and an upper channel cover (11), wherein the tubes (1) are distributed according to the matrix and fixedly arranged on the tube plate (4); the cross section of the shell (8) is in a waist shape; the shell (8) is provided with a gas inlet (9), a gas outlet (3), a condensate outlet (7) and a cleaning hole (15); the upper channel (10) is provided with a cooling water outlet (14), a steam outlet (13) and first liquid level meter interfaces (16); and the lower channel (6) is provided with a cooling water inlet (12), a drain outlet (5) and second liquid level meter interfaces (17). The tube type heat exchanger has the advantages that the channel blockage situation is almost avoided, and impurities on the outer wall of the tube and the inner wall of the shell can be easily cleaned so as to prolong the service life in multiples and lower the repairing cost.

Description

A kind of tubular heat exchanger

Technical field

The utility model belongs to the indirect heat exchanger technical field, is that a kind of dust-laden that is applicable to contains tar gas, the equipment of the cooling or waste heat recovery such as the combustion gas that produces such as biomass pyrolytic.

Background technology

Heat exchanger is important chemical industry equipment, and tubular heat exchanger is wherein main type, is comprised of parts such as heat exchanger tube, tube sheet, shell, dividing plate and bobbin carriages.With respect to other form, such as heat exchangers such as board-like, piece cellular types, tubular heat exchanger for dust-laden, contain the gas adaptability of drop or reasonable.But when cooling for biological fuel gas, the drop owing to containing more charcoal dirt and tar and moisture in this combustion gas easily stops up, and just needed the cleaning of stopping work in common about one month, and cleaning operation bothers very also.

Summary of the invention

The purpose of this invention is to provide a kind of difficult obstruction and clear up pipe heat exchanger easily, containing the cooling or waste heat recovery of tar gas to be adapted to the dust-ladens such as biological fuel gas, artificial coal gas.

In traditional heat exchanger, generally, the high processed gas of tube side circulation temperature, the low cooling water of shell side circulation temperature in order to increase as far as possible heat exchange area, generally adopts the mode of pipe with small pipe diameter, multitube, thin space.It is considered herein that, this structure is to cause that the easy obstruction of passage but is difficult to the reason of cleaning.

Therefore the present invention is conceived to exchange processed gas and cooling water passage both, that is to say at tube side circulation cooling water, and tube side to be carried out substantial improvement at the processed gas of shell side circulation.The one, the arrangement mode of optimization heat exchanger tube adopts matrix to arrange; The 2nd, the spacing of increase heat exchanger tube, 1～2 times of getting tube outer diameter; The 3rd, optimize and enlarge the space of shell side, created a kind of shell of kidney-shaped cross section; The 4th, offer Butterworth Hatch on housing.Furtherly, a kind of tubular heat exchanger, be comprised of tubulation (1), diaphragm (2), lower tube box (6), tube sheet (4), shell (8), upper tube box (10), upper tube box lid (11), the solution of the present invention is:

A, tubulation (1) are fixed on tube sheet (4) by matrix is arranged evenly, and tube pitch is got 1～2 times of tube outer diameter;

B, shell (8) cross section are kidney-shaped, offer gas feed (9), gas vent (3), condensate liquid outlet (7) and Butterworth Hatch (15) on it;

C, offer coolant outlet (14), steam outlet (13) and interface of the level gauge I (16) at upper tube box (10);

D, offer cooling water inlet (12), sewage draining exit (5) and interface of the level gauge II (17) at lower tube box (6).

Advantage of the present invention.In running, although the contained solid, liquid impurity of gas can stick in the outer wall of pipe and the inwall of housing, but the situation that blocking channel basically can not occur is also easily cleaned the impurity that sticks in tube outer wall and inner walls, thereby is extended exponentially life cycle and reduce maintenance cost.

Description of drawings

Fig. 1 is the positive view that dissects along cross centre line.

Fig. 2 is the sectional view that dissects along cross centre line.

Fig. 3 is the schematic diagram of circular cross section.

Fig. 4 is the schematic diagram of kidney-shaped cross section.

Wherein: 1, tubulation, 2, diaphragm, 3, gas vent, 4, tube sheet, 5, sewage draining exit, 6, lower tube box, 7, condensate liquid outlet, 8, shell, 9, gas feed, 10, upper tube box, 11, upper tube box lid, 12, cooling water inlet, 13, steam outlet, 14, coolant outlet, 15, Butterworth Hatch, 16, interface of the level gauge I, 17, interface of the level gauge II.

The specific embodiment

As shown in Figure 1 and Figure 2, heat exchanger of the present invention is comprised of tubulation (1), diaphragm (2), lower tube box (6), tube sheet (4), shell (8), upper tube box (10), upper tube box lid (11), tubulation (1) is fixed on tube sheet (4) by matrix is arranged evenly, and tube pitch is got 1～2 times of tube outer diameter; Shell (8) cross section is kidney-shaped, offers gas feed (9), gas vent (3), condensate liquid outlet (7) and Butterworth Hatch (15) on it; The cross section of upper tube box (10) and lower tube box (6) is rounded, offers coolant outlet (14), steam outlet (13) and interface of the level gauge I (16) at upper tube box (10); Offer cooling water inlet (12), sewage draining exit (5) and interface of the level gauge II (17) at lower tube box (6).

Above-mentioned heat exchanger can be used as cooler, also can be used as evaporimeter.When doing the cooler use, interface of the level gauge I (16), interface of the level gauge II (17) and sewage draining exit (5) can close or omit, and lower tube box (6) is also not necessarily done funnel.When doing the evaporimeter use, lower tube box (6) should be done funnel, is worth if concentrate has to utilize, and sewage draining exit (5) just becomes the concentrate outlet.Tubulation (1) is fixed on tube sheet (4), although belong to by matrix is arranged evenly the optimal selection that takes into account the thermal efficiency and easy to clean, unique selection not necessarily also can be arranged evenly by regular hexagon.The shape of cross section of shell (8) can be circle as shown in Figure 3, but is more reasonably kidney-shaped shown in Figure 4.The shape of cross section of upper tube box (10) and lower tube box (7) both can circle also can rectangle, if use having under pressure condition, should get circle.Diaphragm (2) is arranged alternately as good with three layers, and every layer of correspondence established a Butterworth Hatch (15), but the evaporimeter height when little this diaphragm (2) can omit.

Claims

1. a tubular heat exchanger, be comprised of tubulation (1), diaphragm (2), lower tube box (6), tube sheet (4), shell (8), upper tube box (10), upper tube box lid (11), it is characterized in that:

2. a kind of tubular heat exchanger according to claim 1, it is characterized in that: diaphragm (2), three layers are arranged alternately, and every layer of correspondence established a Butterworth Hatch (15).