CN209131431U - A kind of DMC purification waste-heat recovery device - Google Patents

Abstract

The utility model discloses a kind of DMC to refine waste-heat recovery device, packing layer is equipped with inside treating column, heat-exchanger rig is equipped with above packing layer in treating column, heat-exchanger rig includes heat exchange box, heat exchange box front end is equipped with front tank, several U heat exchanges are equipped in heat exchange box, one end of U heat exchange is connect with into space, the other end of U heat exchange is connect with discharge space, heat exchange box upper inside is fixed with overhead gage, heat exchange box inner lower is fixed with lower baffle plate, heat exchange box upper end is equipped with water inlet pipe, heat exchange box lower end is equipped with outlet pipe, collecting hood is equipped between treating column inner stuffing layer and heat exchange box, collecting hood is connect by gas collecting tube with air inlet pipe, escape pipe is connect with recovery tube, water inlet pipe is connect with three-way connection, three-way connection is connect with water supplying pipe, water supplying pipe is connect with the water inlet end of the first water pump, recovery tube is also with three Pass joint connection, outlet pipe are connect with drinking-water pipe, and drinking-water pipe is connect with the water inlet end of the second water pump.

Description

A kind of DMC purification waste-heat recovery device

Technical field

The utility model relates to heat recovery technology fields more particularly to a kind of DMC to refine waste-heat recovery device.

Background technique

In existing technique, DMC refinement is heated up using steam, and the cost of steam is very high, and use finishes The waste heat of steam afterwards is not recycled, and the significant wastage of the energy is caused；And a large amount of raw steam is consumed, increase cigarette Gas discharge, is unfavorable for environmental protection.

Utility model content

Purpose of the utility model is to solve the waste heats of existing steam after DMC refinement use not to have It is recycled, causes the significant wastage of the energy；And a large amount of raw steam is consumed, flue gas emission is increased, ring is unfavorable for The DMC of guarantor refines waste-heat recovery device.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of DMC purification waste-heat recovery device, including treating column, the treating column inside are equipped with packing layer, the purification Heat-exchanger rig is equipped with above packing layer in tower, the heat-exchanger rig includes heat exchange box, and the heat exchange box front end is equipped with front tank, It is equipped with vertical clapboard between the heat exchange box and the front tank, diaphragm plate is equipped in the front tank, the diaphragm plate will be described Front tank is divided into space and discharge space, is equipped with several U heat exchanges in the heat exchange box, and the one of the U heat exchange End is connect with into space, and the other end of the U heat exchange is connect with discharge space, and the heat exchange box upper inside is fixed with Overhead gage, the heat exchange box inner lower are fixed with lower baffle plate, and the heat exchange box upper end is equipped with water inlet pipe, the heat exchange box lower end Equipped with outlet pipe, described to connect into space with air inlet pipe, the discharge space is connect with escape pipe, in the treating column Collecting hood is equipped between portion's packing layer and heat exchange box, the collecting hood is connect by gas collecting tube with air inlet pipe, the escape pipe and Recovery tube connection, the water inlet pipe are connect with three-way connection, and the three-way connection is connect with water supplying pipe, the water supplying pipe and first The water inlet end of water pump connects, and the recovery tube is also connect with three-way connection, and the outlet pipe is connect with drinking-water pipe, the drinking-water pipe It is connect with the water inlet end of the second water pump.

Further, described filler layer includes the first packing layer and the second packing layer, and first packing layer is as described Below second packing layer.

Further, the U heat exchange is supported on inside heat exchange box by support plate in the heat exchange box, the support Plate is fixed on heat exchange chamber interior wall by fixed link.

Further, the overhead gage is fixed on heat exchange box inside left, and the lower baffle plate is fixed on right inside heat exchange box Side.

Further, the collecting hood is one for collecting the inverted infundibulate of steam.

Usefulness: the utility model is recycled by the waste heat to used steam, and with recycling waste heat It is heated up to circulation cold water, reduces cost, while improving the recoverable efficiency of heat.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

In figure: 1 treating column, 2 first packing layers, 3 second packing layers, 4 heat exchange box, 5 front tanks, 6 diaphragm plates, 7 vertical clapboards, 8U type heat exchanger tube, 9 support plates, 10 fixed links, 11 overhead gages, 12 lower baffle plates, 13 escape pipes, 14 air inlet pipe, 15 water inlet pipes, 16 go out Water pipe, 17 collecting hoods, 18 gas collecting tubes, 19 recovery tubes, 20 three-way connections, 21 water supplying pipes, 22 first water pumps, 23 drinking-water pipes, 24 Two water pumps.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

As shown in Figure 1, a kind of DMC refines waste-heat recovery device, including treating column 1, filler is equipped with inside the treating column 1 Layer, heat-exchanger rig is equipped with above the packing layer in the treating column 1, the heat-exchanger rig includes heat exchange box 4, the heat exchange box 4 Front end is equipped with front tank 5, and vertical clapboard 7 is equipped between the heat exchange box 4 and the front tank 5, is equipped with tabula in the front tank 5 The front tank 5 is divided into space and discharge space by plate 6, the diaphragm plate 6, and several U-shaped change is equipped in the heat exchange box 4 Heat pipe 8, one end of the U heat exchange 8 are connect with into space, and the other end of the U heat exchange 8 and discharge space connect It connects, 4 upper inside of heat exchange box is fixed with overhead gage 11, and 4 inner lower of heat exchange box is fixed with lower baffle plate 12, described to change 4 upper end of hot tank is equipped with water inlet pipe 15, and 4 lower end of heat exchange box is equipped with outlet pipe 16, described to enter space and air inlet pipe 14 Connection, the discharge space are connect with escape pipe 13, and collecting hood is equipped between the 1 inner stuffing layer for the treatment of column and heat exchange box 4 17, the collecting hood 17 is connect by gas collecting tube 18 with air inlet pipe 14, and the escape pipe 13 is connect with recovery tube 19, the water inlet Pipe 15 is connect with three-way connection 20, and the three-way connection 20 is connect with water supplying pipe 21, the water supplying pipe 21 and the first water pump 22 Water inlet end connection, the recovery tube 19 are also connect with three-way connection 20, and the outlet pipe 16 is connect with drinking-water pipe 23, described to draw water Pipe 23 is connect with the water inlet end of the second water pump 24.Described filler layer include the first packing layer 2 and the second packing layer 3, described first Packing layer 2 is as 3 lower section of the second packing layer.The U heat exchange 8 is supported on by support plate 9 and is changed in the heat exchange box 4 Inside hot tank 4, the support plate 9 is fixed on 4 inner wall of heat exchange box by fixed link 10.The overhead gage 11 is fixed on heat exchange box 4 inside lefts, the lower baffle plate 12 are fixed on 4 inner right side of heat exchange box.The collecting hood 17 is one for collecting falling for steam The infundibulate set.

Working principle: the steam in treating column 1 is for there are also in higher temperature, treating column 1 after succinic acid purification Steam move upwards, by the collection of collecting hood 17 pass through again gas collecting tube 18 enter air inlet pipe 14 and enter space and enter U In shape heat exchanger tube, then the first water pump 22 will need the water heated to be pumped into heat exchange box 4 by water supplying pipe 21 and water inlet pipe 15, change The water that overhead gage 11 and 12 pairs of lower baffle plate needs in hot tank 4 heat plays the role of current limliting, and improves water and exchange heat again Residence time in case 4, after water is contacted with U-shaped heat exchanger tube, by improving itself temperature with the contact heat-exchanging of U heat exchange 8 Degree, while the steam cooling in U-shaped heat exchanger tube becomes condensed water, the condensed water in U heat exchange 8 passes through escape pipe 13 and recycling Pipe 19 and three-way connection 20, which are again introduced into water supplying pipe 21, enters the progress heat cycles heating use of heat exchange box 4.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (5)

1. a kind of DMC refines waste-heat recovery device, which is characterized in that including treating column, packing layer is equipped with inside the treating column, Heat-exchanger rig is equipped with above packing layer in the treating column, the heat-exchanger rig includes heat exchange box, and the heat exchange box front end is set There is front tank, vertical clapboard is equipped between the heat exchange box and the front tank, is equipped with diaphragm plate, the tabula in the front tank The front tank is divided into space and discharge space by plate, is equipped with several U heat exchanges in the heat exchange box, described U-shaped to change One end of heat pipe is connect with into space, and the other end of the U heat exchange is connect with discharge space, on the heat exchange box inside Side is fixed with overhead gage, and the heat exchange box inner lower is fixed with lower baffle plate, and the heat exchange box upper end is equipped with water inlet pipe, described to change Hot tank lower end is equipped with outlet pipe, and described to connect into space with air inlet pipe, the discharge space is connect with escape pipe, the purification Collecting hood is equipped between tower inner stuffing layer and heat exchange box, the collecting hood is connect by gas collecting tube with air inlet pipe, the outlet Pipe connect with recovery tube, the water inlet pipe is connect with three-way connection, and the three-way connection is connect with water supplying pipe, the water supplying pipe and The water inlet end of first water pump connects, and the recovery tube is also connect with three-way connection, and the outlet pipe is connect with drinking-water pipe, the pumping Water pipe is connect with the water inlet end of the second water pump.

2. a kind of DMC according to claim 1 refines waste-heat recovery device, which is characterized in that described filler layer includes the One packing layer and the second packing layer, first packing layer is as the second packing layer lower section.

3. a kind of DMC according to claim 1 refines waste-heat recovery device, which is characterized in that the U in the heat exchange box Type heat exchanger tube is supported on inside heat exchange box by support plate, and the support plate is fixed on heat exchange chamber interior wall by fixed link.

4. a kind of DMC according to claim 1 refines waste-heat recovery device, which is characterized in that the overhead gage is fixed on Heat exchange box inside left, the lower baffle plate are fixed on heat exchange box inner right side.

5. a kind of DMC according to claim 1 refines waste-heat recovery device, which is characterized in that the collecting hood is a use In the inverted infundibulate for collecting steam.