CN216677669U - Production compressed air freeze dryer for polyurethane - Google Patents

Abstract

The utility model belongs to the technical field of polyurethane production, and particularly relates to a compressed air freeze dryer for producing polyurethane, which adopts the technical scheme that: the device comprises a first drying device, wherein the bottom end of the first drying device is connected with a filtering device through a first guide pipe, and the bottom end of the filtering device is connected with a second drying device through a second guide pipe; the first drying device comprises a first box body, a condensing pipe is arranged in the first box body, and the outer wall of the condensing pipe is provided with wave pieces, and the first drying device has the beneficial effects that: utilize the condenser among the first drying device to cool off first box inner chamber, reach the dew point temperature of steam to make steam form dew and drip the discharge, realize the drying to the air, through setting up filter equipment, can filter the solid particles thing in the air, thereby make the air purer, be favorable to industrial production more, through setting up second drying device, become the normal atmospheric temperature with air heating, be suitable for the production of polyurethane more.

Description

Production compressed air freeze dryer for polyurethane

Technical Field

The utility model relates to the technical field of polyurethane production, in particular to a compressed air freeze dryer for producing polyurethane.

Background

Polyurethane, a full name of which is polyurethane, is a high molecular compound produced in 1937 by otto bayer and the like; the polyurethane has two main types of polyester type and polyether type, and can be prepared into polyurethane plastics, polyurethane fiber, polyurethane rubber and elastomer; the soft polyurethane mainly has a thermoplastic linear structure, and has better stability, chemical resistance, rebound resilience and mechanical property and smaller compression deformability than a PVC foaming material.

The moisture in the air is large, and dry air is required to be used in the production of polyurethane; at present, when polyurethane is produced, the drying agent is used for drying air, the drying efficiency is low, the drying time is long, the production period of the polyurethane is prolonged, the drying agent needs to be frequently replaced, and the use is very inconvenient.

Therefore, in order to solve the technical problems, the utility model discloses a compressed air freeze dryer for producing polyurethane.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a compressed air freeze-drying machine for producing polyurethane, which liquefies water vapor in air into dew drops by arranging a first drying device, and then discharges the dew drops to dry the air, thereby solving the problems that when polyurethane is produced, a drying agent is used for drying the air, the drying efficiency is low, the drying time is long, the production period of the polyurethane is prolonged, and the drying agent needs to be frequently replaced, so that the use is very inconvenient.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the compressed air freeze dryer for producing polyurethane comprises a first drying device, wherein the bottom end of the first drying device is connected with a filtering device through a first conduit, and the bottom end of the filtering device is connected with a second drying device through a second conduit;

the first drying device comprises a first box body, a condenser pipe is arranged in the first box body, wave pieces are arranged on the outer wall of the condenser pipe, short rods are arranged on the outer walls of the upper end and the lower end of the condenser pipe, short rods are arranged on the outer wall of the short rods, a first air inlet is formed in the top end of the first box body, a first air outlet is formed in the bottom end of the first box body, and a water outlet is formed in the bottom end of the first box body.

Furthermore, condenser pipe one end fixed connection condenser, the condenser is installed on the outer wall of first box.

Further, wave piece and condenser pipe set up for integrated into one piece, quarter butt and condenser pipe set up for integrated into one piece, the quarter butt sets up for integrated into one piece with the condenser pipe.

Further, first box inner chamber bottom sets up to go up the convex surface form, fixed mounting has first support column I on the first box inner chamber diapire, I top fixed connection shielding plate of first support column, the shielding plate is located directly over first gas outlet.

Furthermore, the filtering device comprises a filtering box, a second air inlet is arranged at the top end of the filtering box, a second air outlet is arranged at the bottom end of the filtering box, and first filtering cotton, a filtering plate and second filtering cotton are arranged in the filtering box.

Further, second drying device includes the second box, second box top is equipped with the third air inlet, second box bottom is equipped with the third gas outlet, be equipped with the heating pipe in the second box, second box top inner wall passes through the bearing and rotates output shaft and the pivot of connecting servo motor, equal fixed mounting has the flabellum on the outer wall of servo motor's output shaft and pivot, servo motor's output shaft and pivot are passed through belt pulley and belt transmission and are connected.

Furthermore, the second air outlet and the third air inlet are connected through the second conduit, the first air outlet and the second air inlet are connected through the first conduit, and the first conduit is provided with a first valve.

Further, first box and rose box pass through II connections of first support column, rose box and second box pass through the second support column and connect.

Furthermore, a second valve is arranged on the water outlet.

In the technical scheme, the compressed air freeze dryer for producing polyurethane provided by the utility model has the following beneficial effects:

1. the condenser in the first drying device is used for cooling the inner cavity of the first box body to reach the dew point temperature of water vapor, so that the water vapor is discharged in the form of dew drops, and the air is dried;

2. by arranging the filtering device, solid particles in the air can be filtered, so that the air is purer and is more beneficial to industrial production;

3. through setting up second drying device, heat the air into the normal atmospheric temperature, be more suitable for the production of polyurethane.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic structural diagram of a compressed air freeze dryer for producing polyurethane according to an embodiment of the present invention;

fig. 2 is an enlarged view of a condenser tube of the compressed air freeze dryer of fig. 1 for producing polyurethane according to an embodiment of the present invention;

fig. 3 is an enlarged view of a part a of the compressed air freeze dryer for producing polyurethane according to an embodiment of the present invention in fig. 2;

FIG. 4 is a schematic external view of the freeze dryer of FIG. 1 for producing polyurethane according to an embodiment of the present invention;

fig. 5 is a perspective view of a shielding plate of a compressed air freeze dryer for producing polyurethane according to an embodiment of the present invention.

Description of reference numerals:

the drying device comprises a first drying device 1, a first box body 11, a first air outlet 111, a first air inlet 12, a condensation pipe 13, a wave piece 131, a short rod 132, a short rod 1321, a water outlet 14, a second valve 141, a baffle plate 15, a first support column I16, a filtering device 2, a filtering box 21, a second air inlet 211, a second air outlet 212, first filter cotton 22, a filtering plate 23, second filter cotton 24, a second drying device 3, a second box body 31, a third air inlet 311, a third air outlet 312, a rotating shaft 34 of a servo motor 32, fan blades 35, a heating pipe 36, a first conduit 4, a first valve 41, a second conduit 5, a second support column 6 and a first support column II 7.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 5;

the compressed air freeze dryer for producing polyurethane comprises a first drying device 1, wherein the bottom end of the first drying device 1 is connected with a filtering device 2 through a first conduit 4, and the bottom end of the filtering device 2 is connected with a second drying device 3 through a second conduit 5;

first drying device 1 includes first box 11, be equipped with condenser pipe 13 in the first box 11, be equipped with wave piece 131 on the condenser pipe 13 outer wall, be equipped with quarter butt 132 on condenser pipe 13 upper end and the lower extreme outer wall, be equipped with quarter butt 1321 on the quarter butt 132 outer wall, first box 11 top is equipped with first air inlet 12, first box 11 bottom is equipped with first gas outlet 111, first box 11 bottom is equipped with outlet 14.

Preferably, one end of the condensation pipe 13 is fixedly connected with a condenser (not shown in the figure), and the condenser is installed on the outer wall of the first tank 11.

Preferably, the wave piece 131 and the condensation pipe 13 are integrally formed, the short rod 132 and the condensation pipe 13 are integrally formed, and the short rod 1321 and the condensation pipe 13 are integrally formed.

Preferably, 11 inner chamber bottom of first box sets up to the convex arc face form to make the dew that forms drip can not flow out through first gas outlet 111, fixed mounting has first support column I16 on 11 inner chamber diapire of first box, first support column I16 top fixed connection shielding plate 15, shielding plate 15's effect is during dew drips and falls first gas outlet 111 on avoiding condenser pipe 13, shielding plate 15 is located directly over first gas outlet 111.

Preferably, the filtering device 2 comprises a filtering box 21, the top end of the filtering box 21 is provided with a second air inlet 211, the bottom end of the filtering box 21 is provided with a second air outlet 212, the filtering box 21 is internally provided with a first filtering cotton 22, a filtering plate 23 and a second filtering cotton 24, and the first filtering cotton 22, the filtering plate 23 and the second filtering cotton 24 are used for filtering the air, so as to filter out solid particles in the air.

Preferably, the second drying device 3 includes the second box 31, the second box 31 top is equipped with third air inlet 311, the second box 31 bottom is equipped with third air outlet 312, be equipped with heating pipe 36 in the second box 31, heating pipe 36's effect is heated cold air, second box 31 top inner wall passes through bearing rotation and connects servo motor 32's output shaft and pivot 34, and servo motor 32's effect is that it is rotatory to drive flabellum 35, equal fixed mounting has flabellum 35 on servo motor 32's the output shaft and the outer wall of pivot 34, and the effect of flabellum 35 is blown air onto heating pipe 36 to the flow of air accelerates, improves the air drying process, servo motor 32's output shaft and pivot 34 are connected through belt pulley and belt drive.

Preferably, the second air outlet 212 and the third air inlet 311 are connected through the second conduit 5, the first air outlet 111 and the second air inlet 211 are connected through the first conduit 4, a first valve 41 is installed on the first conduit 4, and the first valve 41 is used for controlling whether the air in the first tank 11 enters the filter box 21.

Preferably, the first box body 11 and the filter box 21 are connected through a first support column II 7, the filter box 21 and the second box body 31 are connected through a second support column 6, and the first support column II 7 is used for connecting the first box body 11 and the filter box 21.

Preferably, a second valve 141 is installed on the drain port 14, and the second valve 141 controls whether or not to discharge the dew drops formed in the first housing 11.

The using method of the utility model is as follows: air enters the first box body 11 through the first air inlet 12, the condenser is started to enable the temperature of the condensation pipe 13 to be low (the temperature is set to be dew point temperature), the air entering the first box body 11 is contacted with the condensation pipe 13, water vapor in the air forms dew drops, the dew drops fall at the bottom of the inner cavity of the first box body 11, the air is dried, and the second valve 141 is opened to discharge the dew drops in the first box body 11 through the water outlet 14; after the water vapor in the air fully forms dew drop, open first valve 41, the cold air after being dried by first drying device 1 gets into the rose box 21 through first pipe 4, through first filter pulp 22, filter 23 and second filter pulp 24's filtration, the solid particle thing in the air is filtered, the air gets into in the second box 31 through second pipe 5 again, start servo motor 32 and put through the power of heating pipe 36, heating pipe 36 heats the inner chamber of second box 31, thereby make the air recover the temperature, make the air be suitable for the production of polyurethane more, the air discharges through third gas outlet 312.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims (9)

1. The compressed air freeze dryer for producing the polyurethane comprises a first drying device (1), and is characterized in that the bottom end of the first drying device (1) is connected with a filtering device (2) through a first conduit (4), and the bottom end of the filtering device (2) is connected with a second drying device (3) through a second conduit (5);

first drying device (1) includes first box (11), be equipped with condenser pipe (13) in first box (11), be equipped with wave piece (131) on condenser pipe (13) outer wall, be equipped with quarter butt (132) on condenser pipe (13) upper end and the lower extreme outer wall, be equipped with quarter butt (1321) on quarter butt (132) outer wall, first box (11) top is equipped with first air inlet (12), first box (11) bottom is equipped with first gas outlet (111), first box (11) bottom is equipped with outlet (14).

2. The compressed air freeze-drying machine for producing polyurethane according to claim 1, wherein one end of the condenser pipe (13) is fixedly connected with a condenser, and the condenser is installed on the outer wall of the first box body (11).

3. The compressed air freeze dryer for producing polyurethane as claimed in claim 1, wherein the wave plate (131) and the condenser tube (13) are integrally formed, the short rod (132) and the condenser tube (13) are integrally formed, and the short rod (1321) and the condenser tube (13) are integrally formed.

4. The compressed air freeze dryer for producing polyurethane as claimed in claim 1, wherein the bottom end of the inner cavity of the first box body (11) is in an upward convex arc surface shape, the bottom wall of the inner cavity of the first box body (11) is fixedly provided with a first support column I (16), the top end of the first support column I (16) is fixedly connected with a baffle plate (15), and the baffle plate (15) is located right above the first air outlet (111).

5. The compressed air freeze dryer for producing polyurethane as claimed in claim 1, wherein the filtering device (2) comprises a filtering box (21), the top end of the filtering box (21) is provided with a second air inlet (211), the bottom end of the filtering box (21) is provided with a second air outlet (212), and the filtering box (21) is provided with a first filtering cotton (22), a filtering plate (23) and a second filtering cotton (24).

6. The compressed air freeze dryer for producing polyurethane as claimed in claim 5, wherein the second drying device (3) includes a second box (31), a third air inlet (311) is disposed at a top end of the second box (31), a third air outlet (312) is disposed at a bottom end of the second box (31), a heating pipe (36) is disposed in the second box (31), an inner wall of a top end of the second box (31) is rotatably connected to an output shaft and a rotating shaft (34) of the servo motor (32) through a bearing, fan blades (35) are fixedly mounted on outer walls of the output shaft of the servo motor (32) and the rotating shaft (34), and the output shaft and the rotating shaft (34) of the servo motor (32) are connected through a belt pulley and a belt transmission.

7. The machine according to claim 6, wherein the second outlet (212) and the third inlet (311) are connected by the second conduit (5), the first outlet (111) and the second inlet (211) are connected by the first conduit (4), and the first valve (41) is mounted on the first conduit (4).

8. The compressed air freeze dryer for producing polyurethane as claimed in claim 1, wherein the first tank (11) and the filter tank (21) are connected by a first support column ii (7), and the filter tank (21) and the second tank (31) are connected by a second support column (6).

9. The machine according to claim 1, wherein the second valve (141) is mounted on the drain opening (14).

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