CN217067691U - Detachable falling film evaporation ware of distributor - Google Patents

Abstract

The utility model provides a detachable falling film evaporation ware of distributor, including the barrel, install a plurality of heat exchange tubes in the barrel, the upper and lower both ends of heat exchange tube are fixed respectively and are equipped with tube sheet and low tube sheet, and the distributor is installed to the top of tube sheet of having changed, and the distributor includes the chassis and sets up the rim of upper portion edge round above that, is connected through detachable mechanism between the outer wall of rim and the inner wall of barrel, and detachable mechanism is provided with 3 groups and equiangular triangle and sets up the distribution. Through the technical scheme of the utility model, at first take off the upper cover of barrel upper end, place the connecting plate of distributor on the fixed plate of 1 inner walls of barrel rather than corresponding, perforate unthreaded hole and screw hole in proper order through the single-end bolt and carry out threaded connection. When needs are dismantled, take out the single-end bolt can, the utility model discloses with less bolt fastening, easy operation overhauls the convenience, and has reduced the bolt cost.

Description

Detachable falling film evaporation ware of distributor

Technical Field

The utility model relates to a falling film evaporator technical field, particularly, in particular to detachable falling film evaporator of distributor.

Background

Evaporation is a unit operation that concentrates solutions, typically the solvent is volatile, while most solutes have a vapor pressure approaching zero and are not volatile. The solution is boiled and evaporated to remove part of the solvent, and the solution is concentrated by evaporation. In most cases the evaporator uses steam as a heating medium (usually called heating steam, primary steam or live steam) and indirectly transfers heat to the solution through a metal wall, and after the solution is heated, the solvent boils and vaporizes, and the generated steam (also called secondary steam in most cases) is evaporated. The falling film evaporation is that the feed liquid is added from an upper pipe box of a heating chamber of the falling film evaporator, is uniformly distributed into each heat exchange pipe through a liquid distribution and film forming device, and flows from top to bottom in a uniform film shape under the action of gravity, vacuum induction and airflow. In the flowing process, the shell-pass heating medium is heated and vaporized, the generated steam and the liquid phase enter a separation chamber of the evaporator together, the steam and the liquid are fully separated, the steam enters a condenser for condensation (single-effect operation) or enters a next-effect evaporator as the heating medium, so that the multi-effect operation is realized, and the liquid phase is discharged from the separation chamber.

When the tube plate of the falling film evaporator is made of a titanium composite plate, the tube box, the distributor and other parts are made of titanium, two fixing modes of the traditional distributor are provided, one mode is that the distributor is welded with the feeding tube, and the mode is inconvenient to operate and cannot be disassembled for maintenance; the second kind is tube sheet welding double-screw bolt, inserts the distributor, and the nut is fixed, and this kind of mode needs longer titanium material bolt, and the cost is higher, and double-screw bolt and composite sheet titanium layer welding, influences the composite sheet quality, and the double-screw bolt straightness that hangs down is also difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

In order to make up the deficiency of the prior art, the utility model provides a falling film evaporator with a detachable distributor.

The utility model discloses a realize through following technical scheme: a falling film evaporator with a detachable distributor comprises a cylinder body, an upper end enclosure and a lower end enclosure which are respectively arranged at the upper end and the lower end of the cylinder body, wherein a plurality of heat exchange tubes are arranged in the cylinder body, an upper tube plate and a lower tube plate are respectively fixedly arranged at the upper end and the lower end of each heat exchange tube, the heat exchange tubes are arranged in the cylinder body through the upper tube plate and the lower tube plate, a feed pipe is arranged at the top of the upper end enclosure, a discharge pipe is arranged at the bottom end of the lower end enclosure, the distributor is arranged above the upper tube plate and comprises a chassis and a rim which is arranged at the upper edge of the chassis, the outer wall of the rim is connected with the inner wall of the cylinder body through a detachable mechanism, the detachable mechanism is provided with 3 groups and distributed in an equiangular triangle arrangement, the detachable mechanism comprises a connecting plate which is welded on the outer wall of the rim, a fixing plate which is welded and connected with the inner wall of the cylinder body, the position of the fixing plate corresponds to the connecting plate, and a unthreaded hole with a smooth through hole is arranged on the connecting plate, the fixing plate corresponding to the fixing plate is provided with a threaded hole, the unthreaded hole is in threaded connection with the threaded hole through a single-head bolt, and the single-head bolt sequentially penetrates through the unthreaded hole and the threaded hole to be in threaded connection.

As the preferred scheme, the upper tube plate and the lower tube plate are made of titanium composite plates.

Preferably, the bottom of the barrel is provided with a sight glass, and the outside of the barrel is provided with an ear seat.

Preferably, the heat exchange tubes are arranged in a corner regular triangle manner.

Furthermore, a plurality of layers of baffle plates are arranged in the cylinder from top to bottom, the baffle plates are distributed in a staggered manner, distance pipes are connected between the baffle plates of each layer, and the baffle plates are connected with the distance pipes through bolts.

Preferably, a liquid level meter port is arranged at the discharge pipe.

The utility model discloses owing to adopted above technical scheme, compare with prior art and make it have following beneficial effect: the fixing plate (the tapping hole) is welded on the inner wall of the pipe box, the connecting plate (the polishing hole) is welded on the outer side of the distributor, and the distributor is fixed by a small bolt.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the upper part of a falling film evaporator;

FIG. 3 is a schematic view of a detachable mechanism distribution;

figure 4 is a schematic view of the distribution of heat exchange tubes,

wherein, the corresponding relationship between the reference numbers and the components in fig. 1 to 3 is:

1 cylinder, 2 upper end sockets, 3 lower end sockets, 4 upper tube plates, 5 lower tube plates, 6 feeding tubes, 7 distributors, 8 chassis, 9 side rings, 10 connecting plates, 11 fixing plates, 12 unthreaded holes, 13 threaded holes, 14 single-head bolts, 15 detachable mechanisms, 16 sight glasses, 17 lug seats, 18 baffle plates, 19 distance tubes, 20 discharging tubes, 21 liquid level meter ports and 22 heat exchange tubes.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The following describes a falling film evaporator with a removable distributor according to an embodiment of the present invention with reference to fig. 1 to 4.

As shown in fig. 1 and 2, the utility model provides a detachable falling film evaporator of distributor, including barrel 1 and install upper cover 2 and low head 3 at its upper and lower both ends respectively, install a plurality of heat exchange tubes 22 in the barrel 1, the arrangement of heat exchange tubes 22 is the arrangement of corner equilateral triangle formula, and hot water flows through the shell side and heats the inside material of tube side. A plurality of layers of baffle plates 18 are arranged in the cylinder 1 from top to bottom, the baffle plates 18 are distributed in a staggered mode, distance pipes 19 are connected among the baffle plates 18, and the baffle plates 18 are connected with the distance pipes 19 through bolts. An upper tube plate 4 and a lower tube plate 5 are respectively fixedly arranged at the upper end and the lower end of the heat exchange tube 22, and the upper tube plate 4 and the lower tube plate 5 are made of titanium composite plates. The heat exchange tube 22 is installed in the barrel 1 through an upper tube plate 4 and a lower tube plate 5, the feeding tube 6 is installed at the top of the upper end enclosure 2, the discharging tube 20 is installed at the bottom end of the lower end enclosure 3, and a liquid level meter port 21 is formed in the discharging tube 20 and used for detecting the liquid level of the discharging tube 20. Wherein, install distributor 7 above upper tube plate 4, distributor 7 includes chassis 8 and sets up the border 9 of upper portion edge round above that, be connected through detachable mechanism 15 between the outer wall of border 9 and the inner wall of barrel 1, detachable mechanism 15 is provided with 3 groups and equiangular triangle sets up the distribution, detachable mechanism 15 includes welded connection's connecting plate 10 on the outer wall of border 9, barrel 1's inner wall welded connection's fixed plate 11, the position of fixed plate 11 corresponds with connecting plate 10, it has smooth through-hole's unthreaded hole 12 to open on the connecting plate 10, it has screwed screw hole 13 to open on the fixed plate 11 rather than corresponding, pass through single-end bolt 14 threaded connection between unthreaded hole 12 and the screw hole 13, single-end bolt 14 perforates unthreaded hole 12 in proper order and screw hole 13 carries out threaded connection. The bottom of barrel 1 is provided with sight glass 16 for observe the condition of outflow material, and the externally mounted of barrel 1 has ear seat 17 for fixed whole device.

The working process comprises the steps of firstly taking down the upper end socket 2 at the upper end of the cylinder 1, placing the connecting plate of the distributor 7 on the fixing plate 11 corresponding to the inner wall of the cylinder 1, and sequentially punching the unthreaded hole 12 and the threaded hole 13 through the single-head bolt 14 for threaded connection. When needs are dismantled, take out single-end bolt 14 can, the utility model discloses with less bolt fastening, easy operation, it is convenient to overhaul, and has reduced the bolt cost.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A falling film evaporator with a detachable distributor comprises a barrel body (1), an upper end enclosure (2) and a lower end enclosure (3) which are respectively installed at the upper end and the lower end of the barrel body, wherein a plurality of heat exchange tubes (22) are arranged in the barrel body (1), an upper tube plate (4) and a lower tube plate (5) are respectively fixedly installed at the upper end and the lower end of each heat exchange tube (22), each heat exchange tube (22) is installed in the barrel body (1) through the upper tube plate (4) and the lower tube plate (5), a feeding tube (6) is installed at the top of the upper end enclosure (2), a discharging tube (20) is installed at the bottom end of the lower end enclosure (3), the distributor is characterized in that the distributor (7) is installed above the upper tube plate (4) and comprises a chassis (8) and a rim (9) which is arranged at the upper edge of one circle, the outer wall of the rim (9) is connected with the inner wall of the barrel body (1) through a detachable mechanism (15), the detachable mechanism (15) is provided with 3 groups and is distributed in an equiangular triangle shape, detachable mechanism (15) are including welded connection's on the outer wall of limit circle (9) connecting plate (10), the inner wall welded connection's of barrel (1) fixed plate (11), the position of fixed plate (11) is corresponding with connecting plate (10), it has unthreaded hole (12) of smooth through-hole to open on connecting plate (10), it has screwed screw hole (13) to open on fixed plate (11) rather than corresponding, through single-end bolt (14) threaded connection between unthreaded hole (12) and screw hole (13), single-end bolt (14) are in proper order to perforate unthreaded hole (12) and screw hole (13) and carry out threaded connection.

2. The falling film evaporator with the detachable distributor as claimed in claim 1, wherein the upper tube plate (4) and the lower tube plate (5) are made of titanium composite plates.

3. A falling film evaporator with removable distributor according to claim 1, characterized in that the bottom of the cylinder (1) is provided with a sight glass (16), and the outside of the cylinder (1) is provided with an ear seat (17).

4. A distributor removable falling film evaporator according to claim 1 wherein the heat exchange tubes (22) are arranged in a corner equilateral triangle pattern.

5. The falling film evaporator with the detachable distributor is characterized in that a plurality of layers of baffle plates (18) are installed in the cylinder body (1) from top to bottom, the baffle plates (18) are distributed in a staggered mode, distance pipes (19) are connected between the baffle plates (18), and the baffle plates (18) are connected with the distance pipes (19) through bolts.

6. Falling film evaporator with removable distributor according to claim 1, characterized in that the tapping pipe (20) is provided with a level gauge opening (21).

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