Waste heat recovery device of dioxolame evaporator

Abstract

The utility model provides a dioxolame evaporator waste heat recovery device, which relates to the technical field of dioxolame processing waste heat recovery and utilization, and comprises an evaporator body, the evaporator body is communicated with a feed pipe, the feed pipe is provided with an electromagnetic valve, and the evaporator body is also provided with a high-temperature steam circulating pipe and a suction shell with an open upper end and an open lower end; according to the device, the function of recycling waste heat generated in the using process of the dioxolame evaporator can be achieved, a waste heat source comprises two parts, one part comes from high-temperature steam heat generated by evaporation and dehydration of dioxolame, and the other part comes from part of heat naturally lost to the outside from the surface of the evaporator; the two parts of heat are recycled in time, so that the waste rate of the heat can be greatly reduced, harmful substances in the high-temperature steam can be purified and filtered in the recycling process, the two parts of heat are conveyed to other places for heating or power generation, the current energy-saving and environment-friendly concept is met, and the energy-saving and environment-friendly effects are achieved. And the current energy-saving and environment-friendly concept is met.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery and utilization of dioxolane processing, in particular to a waste heat recovery device for a dioxolane evaporator. Background Art

[0002] In chemical production, an evaporator is a chemical machinery that uses heating methods to heat a solution containing non-volatile solutes to a boiling state, vaporizing and removing part of the solvent, thereby increasing the solute concentration in the solvent. Evaporators are required in the production and preparation of dioxolane.

[0003] Existing evaporators used for dioxolane dehydration often directly discharge high-temperature water vapor to the outside when heating its saturated solution. However, this water vapor may contain chemical pollutants, which in turn pollute the outdoor air. At the same time, direct heat discharge is wasteful, and some heat will also be dissipated on the surface of the evaporator. Currently, there is a lack of effective means to recycle and reuse these two parts of waste heat. Utility Model Content

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes a dioxolane evaporator waste heat recovery device.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A dioxolane evaporator waste heat recovery device includes an evaporator body, the evaporator body is connected to a feed pipe, the feed pipe is provided with a solenoid valve, the evaporator body is also provided with a high-temperature steam circulation pipe and a suction shell with open upper and lower ends, the suction shell is in contact with the outer wall of the evaporator body and the interior of the suction shell is hollow, a plurality of suction holes are opened on the suction shell and the suction shell is connected to the first circulation pipe, one end of the high-temperature steam circulation pipe is connected to a purification box fixed on the suction shell, a purification component is provided in the purification box and a high-temperature resistant suction fan and a second circulation pipe connected to the interior of the purification box are provided at the bottom of the purification box, the high-temperature resistant suction fan is respectively connected to the first circulation pipe and the second circulation pipe through a three-way pipe, and the outlet end of the high-temperature resistant suction fan is connected to the transfer pipe.

[0007] This device can realize the function of recycling and reusing the waste heat generated during the use of the dioxolane evaporator. The waste heat sources include two parts: one part comes from the high-temperature steam heat generated by the evaporation and dehydration of dioxolane, and the other part comes from the heat naturally dissipated to the outside world by the surface of the evaporator. Timely recycling and reusing these two parts of heat can greatly reduce the heat waste rate, and in the process of recycling, it can achieve purification and filtration of harmful substances in the high-temperature steam, and then the two parts of heat can be transported to other places for heating or power generation, which is in line with the current concept of energy conservation and environmental protection.

[0008] Furthermore, the purification component includes a slot and a filter element. A sealing door is rotatably connected to the purification box and a plurality of groups of slots equidistantly distributed are provided in the purification box. A filter element is fitted in each slot.

[0009] Furthermore, the filter element is a filter mesh or an activated carbon mesh.

[0010] In the above scheme, the high-temperature steam generated during the evaporation and dehydration of dioxolane is transported along the high-temperature steam circulation pipe into the purification box. Once it enters the purification box, the harmful chemicals in the high-temperature steam can be purified. The use of filter elements can effectively adsorb and purify the harmful exhaust gas and impurities generated during the evaporation and dehydration of dioxolane.

[0011] Furthermore, the outer surface of the suction shell is provided with a thermal insulation coating.

[0012] The above solution improves the thermal insulation effect of the suction shell by using the thermal insulation coating.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] Compared with the existing technology, this device can realize the function of recycling and reusing the waste heat generated during the use of the dioxolane evaporator. The sources of waste heat include two parts, one part comes from the high-temperature steam heat generated by the evaporation and dehydration of dioxolane, and the other part comes from the part of the heat naturally dissipated to the outside world from the surface of the evaporator. Timely recycling and reusing these two parts of heat can greatly reduce the heat waste rate, and in the process of recycling, the harmful substances in the high-temperature steam can be purified and filtered, and then the two parts of heat can be transported to other places for heating or power generation, which is in line with the current concept of energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the coordinated installation of the thermal insulation board and the suction shell;

[0017] Reference numerals:

[0018] 1. Evaporator body; 11. Feed pipe; 12. Solenoid valve; 13. High-temperature steam circulation pipe; 14. Suction shell; 15. First circulation pipe; 16. Metal plate; 17. Slide; 18. Thermal insulation board; 19. Rectangular through hole; 21. Purification box; 22. Slot; 23. Filter element; 24. Second circulation pipe; 25. High-temperature resistant suction fan; 26. Transfer pipe; 3. Tee pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0020] like Figure 1 and Figure 2 As shown, a dioxolane evaporator waste heat recovery device includes an evaporator body 1, the evaporator body 1 is connected to a feed pipe 11, the feed pipe 11 is provided with a solenoid valve 12 and one end of the feed pipe 11 is connected to a suction pump, the evaporator body 1 is also provided with a high-temperature steam circulation pipe 13 and a suction shell 14 with open upper and lower ends, the suction shell 14 is in contact with the outer wall of the evaporator body 1 and the interior of the suction shell 14 is hollow, a plurality of suction holes are provided on the suction shell 14 and the suction shell 14 is connected to a first circulation pipe 15, one end of the high-temperature steam circulation pipe 13 is connected to a purification box 21 fixed on the suction shell 14, a purification component is provided in the purification box 21 and a high-temperature resistant suction fan 25 and a second circulation pipe 24 connected to the interior of the purification box 21 are provided at the bottom of the purification box 21, the high-temperature resistant suction fan 25 is respectively connected to the first circulation pipe 15 and the second circulation pipe 24 through the tee pipe 3 and the outlet end of the high-temperature resistant suction fan 25 is connected to the transfer pipe 26.

[0021] Specifically, the purification component includes a slot 22 and a filter element 23. A sealing door is rotatably connected to the purification box 21 and a plurality of groups of equally spaced slots 22 are provided in the purification box 21. The sealing door is not shown in the figure. Each slot 22 is equipped with a filter element 23. In the refinement of the scheme, the filter element 23 is one of a filter mesh or an activated carbon mesh.

[0022] It should be noted that the evaporator body 1, the solenoid valve 12, the suction pump and the high-temperature resistant suction fan 25 are all electrically connected to the controller, which is not shown in the figure.

[0023] The workflow of this utility model:

[0024] First, dioxolane is introduced into the evaporator body 1 through the suction pump and the feed pipe 11. The suction pump is not shown in the figure. After the dioxolane is quantitatively added to the evaporator body 1, the controller controls the solenoid valve 12 to close, and then the dioxolane solution in the evaporator body 1 can be evaporated and dehydrated. The evaporator body 1 belongs to the prior art and its working principle is not described. As the dehydration process proceeds, high-temperature steam will be generated in the evaporator body 1. The high-temperature steam is then transported along the high-temperature steam flow pipe 13 to the purification box 21. After entering the purification box 21, the harmful chemical substances in the high-temperature steam can be purified. The filter element 23 can effectively adsorb and purify the harmful exhaust gas and impurities generated during the evaporation and dehydration of the dioxolane.

[0025] As the evaporation process progresses, the outer wall of the evaporator body 1 also begins to dissipate heat outward. At this time, the controller controls the high-temperature resistant suction fan 25 to work and cooperates with the three-way pipe 3, the first flow pipe 15, the second flow pipe 24 and the suction shell 14 to timely extract and drain the high-temperature steam after purification in the purification box 21 and a part of the heat lost on the surface of the evaporator body 1. It should be noted that this heat is not all the heat lost, and some heat will still be lost naturally. Then the high-temperature steam after purification moves along the second flow pipe 24, and most of the heat emitted from the surface of the evaporator body 1 enters the suction shell 14 and the first flow pipe 15 in turn. Finally, these two parts of heat are transported to other areas along the transfer pipe 26 for reuse, that is, the waste heat generated in the process of processing dioxolane in the evaporator is recovered and reused, avoiding the direct discharge of this part of heat and harmful substances into the surrounding environment to cause waste and pollution. During the secondary utilization process, the harmful substances in the waste heat of the evaporator are effectively purified.

[0026] Compared with the existing technology, this device can realize the function of recycling and reusing the waste heat generated during the use of the dioxolane evaporator. The sources of waste heat include two parts, one part comes from the high-temperature steam heat generated by the evaporation and dehydration of dioxolane, and the other part comes from the part of the heat naturally dissipated to the outside world from the surface of the evaporator. Timely recycling and reusing these two parts of heat can greatly reduce the heat waste rate, and in the process of recycling, the harmful substances in the high-temperature steam can be purified and filtered, and then the two parts of heat can be transported to other places for heating or power generation, which is in line with the current concept of energy conservation and environmental protection.

[0027] In some embodiments, the outer surface of the suction shell 14 is provided with a thermal insulation coating; the thermal insulation coating can enhance the thermal insulation effect of the suction shell 14 .

[0028] In other embodiments, Figure 2As shown, the upper surface of the suction shell 14 is provided with a metal plate 16 and a symmetrically distributed slide groove 17, and a thermal insulation board 18 is slidably fitted in the slide groove 17. Specifically, the thermal insulation board 18 is provided with a slider that cooperates with the slide groove 17, which is not shown in the figure. The thermal insulation board 18 is provided with a rectangular through hole 19 and an electromagnet that cooperates with the metal plate 16 is embedded therein. The electromagnet is not shown in the figure and is electrically connected to the controller. When the electromagnet contacts the metal plate 16, the controller immediately controls it to be energized to achieve electromagnetic adsorption and fixation between the thermal insulation board 18 and the suction shell 14. The design of the rectangular through hole 19 does not affect the movement of the thermal insulation board 18, that is, the high-temperature steam circulation pipe 13 and the feed pipe 1 can be arranged along the rectangular through hole 19 area so that the thermal insulation board 18 and the evaporator body 1 do not hinder each other.

[0029] This embodiment can further reduce the rate of heat loss to the outside in the area enclosed between the suction shell 14 and the thermal insulation board 18 by installing a thermal insulation board 18 adsorbed on the upper end surface of the suction shell 14. It should be noted that the suction shell 14 cannot absorb all the heat dissipated from the surface of the evaporator body 1 for recycling, but it can greatly reduce the amount of heat loss and waste on the surface of the evaporator body 1 during use.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A dioxolane evaporator waste heat recovery device, comprising an evaporator body (1), a feed pipe (11) connected to the evaporator body (1), and a solenoid valve (12) provided on the feed pipe (11), characterized in that: The evaporator body (1) is also provided with a high-temperature steam circulation pipe (13) and a suction shell (14) with upper and lower ends open. The suction shell (14) is in contact with the outer wall of the evaporator body (1) and is hollow inside. A plurality of suction holes are opened on the suction shell (14) and the suction shell (14) is connected to the first circulation pipe (15). One end of the high-temperature steam circulation pipe (13) is connected to a purification box (21) fixed on the suction shell (14). A purification component is provided in the purification box (21) and a high-temperature resistant suction fan (25) and a second circulation pipe (24) connected to the inside of the purification box (21) are provided at the bottom of the purification box (21). The high-temperature resistant suction fan (25) is respectively connected to the first circulation pipe (15) and the second circulation pipe (24) through the three-way pipe (3), and the air outlet end of the high-temperature resistant suction fan (25) is connected to the transfer pipe (26).

2. A dioxolane evaporator waste heat recovery device according to claim 1, characterized in that: The purification assembly comprises a slot (22) and a filter (23); a sealing door is rotatably connected to the purification box (21); and a plurality of slots (22) are arranged in the purification box (21) at equal intervals, and a filter (23) is fitted in each slot (22).

3. A dioxolane evaporator waste heat recovery device according to claim 2, characterized in that: The filter element (23) is a filter screen or an activated carbon screen.

4. The dioxolane evaporator waste heat recovery device according to claim 1, characterized in that: The outer surface of the suction shell (14) is provided with a heat-insulating coating.

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