Gas-liquid heat exchanger for methanol-to-hydrogen equipment

Abstract

The gas-liquid heat exchanger comprises a heat exchange shell, a gas inlet pipe, a cooling pipe, a cooling cover, an impurity removal box, a filter box, a circulation assembly and a backwash pipe, the gas inlet pipe is communicated with one side of the heat exchange shell, the other side of the heat exchange shell is communicated with a gas outlet pipe, the cooling pipe is communicated between the gas inlet pipe and the gas outlet pipe, and the cooling cover is communicated with the cooling pipe. The cooling pipe is sleeved with the cooling cover, the inner side wall of the heat exchange shell is fixedly connected with a plurality of connecting rods, the connecting rods are all fixedly connected with the cooling cover, the cooling cover can be stably installed in the heat exchange shell, the impurity removing box is located on one side of the cooling cover, one side of the impurity removing box communicates with a water inlet pipe, and the filter box is located on the other side of the cooling cover. The circulating assembly is arranged among the filter box, the impurity removal box and the cooling cover, and the backwash pipe is communicated with the circulating assembly. According to the gas-liquid heat exchanger for the methanol-to-hydrogen equipment, the influence of impurities, water scales and the like on the heat exchange efficiency in the methanol-to-hydrogen process is conveniently reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely relates to a gas -liquid heat exchanger for methanol hydrogen production equipment. BACKGROUND

[0002] It is known that methanol and water vapor occur methanol cracking reaction and carbon monoxide shift reaction under certain temperature, pressure and catalyst effect, generate hydrogen and carbon dioxide, in the methanol hydrogen production process, the gas -liquid heat exchanger is used to realize the heat transfer between gaseous material and liquid material, for example, the high-temperature gaseous product after reaction can be exchanged with the mixture of liquid methanol and water before entering the reaction system, so that the gaseous product is cooled, and the liquid raw material is preheated, improve the heat efficiency of the whole system, reduce energy consumption, but the hydrogen after heat exchange still has high temperature, and the heat exchange efficiency is low;

[0003] In view of the above problems, the utility model discloses a kind of gas-liquid heat exchanger in methanol hydrogen production equipment of patent announcement No. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of gas-liquid heat exchanger for methanol hydrogen production equipment to solve the problem that scale can reduce heat exchange efficiency in the background art.

[0006] (II) technical scheme

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of gas-liquid heat exchanger for methanol hydrogen production equipment, including heat exchange shell, gas inlet pipe, cooling pipe, cooling cover, impurity removal box, filter box, circulation assembly and backflush pipe;

[0008] The gas inlet pipe is communicated at one side of the heat exchange shell, and the other side of the heat exchange shell is communicated with the gas outlet pipe;

[0009] The cooling pipe is communicated between the gas inlet pipe and the gas outlet pipe;

[0010] The cooling cover is sleeved on the cooling pipe;

[0011] The impurity removal box is located on one side of the cooling cover, and one side of the impurity removal box is communicated with a water inlet pipe;

[0012] The filter box is located on the other side of the cooling cover;

[0013] The circulating assembly is arranged between the filter box, the impurity removal box and the cooling cover;

[0014] The backflush pipe is communicated on the circulating assembly.

[0015] Further, the circulating assembly comprises:

[0016] The connecting pipe is communicated between the impurity removal box and the cooling cover, and the connecting pipe is provided with a water inlet valve;

[0017] The water outlet pipe is communicated between the cooling cover and the backflush pipe, and the water outlet pipe is provided with a water outlet valve;

[0018] The water passing pipe is communicated between the water outlet pipe and the filter box, and the water passing pipe is provided with a water passing valve;

[0019] The telescopic pipe is communicated on the water passing pipe;

[0020] The circulating pipe is communicated between the filter box and the cooling cover, and the circulating pipe is provided with a circulating valve.

[0021] Further, the top end of the filter box is detachably connected with a sealing cover, the sealing cover is provided with a through hole matched with the water passing pipe, and the bottom end of the sealing cover is fixedly connected with a filter frame, and the filter frame is provided with a plurality of filter screen holes.

[0022] Further, one side of the heat exchange shell is provided with an inspection opening, the inspection opening is connected with a sealing door, the sealing door is fixedly connected with a sealing gasket, and the sealing door is fixedly connected with a mounting frame, and two mounting screws are symmetrically and threadedly connected between the mounting frame and the heat exchange shell.

[0023] Further, the top end of the impurity removal box is detachably connected with a protective cover, and the bottom end of the protective cover is fixedly connected with an impurity removal screen plate.

[0024] Further, a plurality of connecting rods are fixedly connected to the inner side wall of the heat exchange shell, and the connecting rods are fixedly connected with the cooling cover.

[0025] (Three) beneficial effects

[0026] Compared with the prior art, the gas-liquid heat exchanger for the methanol hydrogen production equipment has the following beneficial effects:

[0027] 1. The utility model discloses a heat exchange shell is convenient for setting up to the air inlet pipe and the air outlet pipe to be convenient for the cooling pipe intercommunication, through the cooperation of heat exchange shell, air inlet pipe, air outlet pipe and cooling pipe, it is convenient for the gas -liquid heat exchange in the process of methanol oxygen making,

[0028] 2. The utility model discloses through the cooperation of cooling cover and circulating assembly, it is convenient for the circulating cooling of cooling pipe, air inlet pipe and air outlet pipe to be convenient for reducing hydrogen temperature, improve heat exchange efficiency,

[0029] 3. The utility model discloses through the cooperation of impurity removal box and impurity removal screen board, it is convenient for the impurity filtration in cooling, and through the cooperation of filter box and filter screen board, can filter scale and impurity etc. in the circulating flow of cooling water, to be convenient for reducing the production of scale in the cooling water circulation, thereby it is convenient for reducing the influence of impurity and scale on heat exchange efficiency,

[0030] 4. The utility model discloses through the cooperation of backflush pipe and circulating assembly, it is convenient for the backflush of cooling cover to be convenient for the flow cleaning of impurity scale etc. in cooling cover, thereby it is convenient for reducing the influence of impurity and scale etc. on heat exchange efficiency in the process of methanol hydrogen making again. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is structural schematic diagram of the whole application;

[0032] Figure 2 It is structural schematic diagram of the section of the application;

[0033] Figure 3 It is structural schematic diagram of the section of filter box, water pipe and filter frame cooperation of the application;

[0034] Figure 4 It is structural schematic diagram of the section of impurity removal box, protective cover and impurity removal screen board cooperation of the application.

[0035] In the drawing: 1, heat exchange shell;2, air inlet pipe;3, air outlet pipe;4, cooling pipe;5, cooling cover;6, impurity removal box;7, water inlet pipe;8, filter box;9, backflush pipe;10, connecting pipe;11, water outlet pipe;12, water pipe;13, telescopic pipe;14, circulating pipe;15, sealing cover;16, filter frame;17, sealing door;18, mounting frame;19, mounting screw;20, protective cover;21, impurity removal screen board. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0037] Please refer to Figures 1 to 4 A gas-liquid heat exchanger for methanol hydrogen production equipment, including heat exchange shell 1, inlet pipe 2, cooling pipe 4, cooling cover 5, impurity removal box 6, filter box 8, circulating assembly and back flushing pipe 9, inlet pipe 2 is communicated at one side of heat exchange shell 1, and the other side of heat exchange shell 1 is communicated with outlet pipe 3, cooling pipe 4 is communicated between inlet pipe 2 and outlet pipe 3, through the cooperation of heat exchange shell 1, inlet pipe 2, outlet pipe 3 and cooling pipe 4, it is convenient to carry out gas-liquid heat exchange in the process of methanol oxygen production, the high-temperature gaseous product after reaction can be exchanged with the mixture of liquid methanol and water before entering the reaction system, the gaseous product is cooled, and the liquid raw material is preheated, the heat efficiency of the whole system is improved, the energy consumption is reduced, the cooling cover 5 is sleeved on the cooling pipe 4, a plurality of connecting rods are fixedly connected on the inner side wall of heat exchange shell 1, the plurality of connecting rods are fixedly connected with cooling cover 5, the cooling cover 5 can be stably installed in heat exchange shell 1, the impurity removal box 6 is located at one side of cooling cover 5, and the one side of impurity removal box 6 is communicated with water inlet pipe 7, the filter box 8 is located at the other side of cooling cover 5, the circulating assembly is arranged between filter box 8, impurity removal box 6 and cooling cover 5, and the back flushing pipe 9 is communicated on the circulating assembly.

[0038] Reference Figure 2 And Figure 3 The circulating assembly includes connecting pipe 10, water outlet pipe 11, water passing pipe 12, telescopic pipe 13 and circulating pipe 14, connecting pipe 10 is communicated between impurity removal box 6 and cooling cover 5, and water inlet valve is arranged on connecting pipe 10, water outlet pipe 11 is communicated between cooling cover 5 and back flushing pipe 9, and water outlet valve is arranged on water outlet pipe 11, water passing pipe 12 is communicated between water outlet pipe 11 and filter box 8, and water passing valve is arranged on water passing pipe 12, telescopic pipe 13 is communicated on water passing pipe 12, and the position of water passing pipe 12 can be changed by telescopic pipe 13, and circulating pipe 14 is communicated between filter box 8 and cooling cover 5, and circulating valve is arranged on circulating pipe 14.

[0039] When the water inlet valve, the water passing valve and the circulating valve are opened, the cooling water can enter the cooling cover 5 through the water inlet pipe 7, the impurity removal box 6 and the connecting pipe 10, and the cooling water can enter the filter box 8 through the cooling cover 5, the water outlet pipe 11, the water passing pipe 12 and the telescopic pipe 13, and then the cooling water in the filter box 8 can enter the cooling cover 5 through the circulating pipe 14, so that the cooling pipe 4 can be circularly cooled, and when it is needed to backflush the scale in the cooling cover 5, the water outlet valve is opened, the cooling water can enter the cooling cover 5 through the backflush pipe 9 and the water outlet pipe 11, and the inside wall of the cooling cover 5 can be backflushed.

[0040] With reference to Figure 3 The top end of the filter box 8 is detachably connected with a sealing cover 15, the sealing cover 15 is provided with a penetrating opening matched with the water passing pipe 12, and the bottom end of the sealing cover 15 is fixedly connected with a filter frame 16, and the filter frame 16 is provided with a plurality of filter screen openings.

[0041] When the cooling water in the cooling cover 5 enters the filter box 8 through the water outlet pipe 11, the water passing pipe 12 and the telescopic pipe 13, the filter frame 16 can filter the scale in the cooling water, the filtered cooling water can enter the cooling cover 5 through the circulating pipe 14 again, and the cooling pipe 4 can be circularly cooled, and when it is needed to clean the filter frame 16, the water passing pipe 12 is moved out of the penetrating opening, and the sealing cover 15 is detached from the filter box 8.

[0042] With reference to Figure 1 One side of the heat exchange shell 1 is provided with an inspection opening, the inspection opening is connected with a sealing door 17, the sealing door 17 is fixedly connected with a sealing gasket, and the sealing door 17 is fixedly connected with a mounting frame 18, and two mounting screws 19 are symmetrically and threadedly connected between the mounting frame 18 and the heat exchange shell 1.

[0043] When the sealing door 17 is mounted in the inspection opening, the two mounting screws 19 are screwed between the mounting frame 18 and the heat exchange shell 1, so that the mounting frame 18 can be stably mounted on the heat exchange shell 1, the sealing door 17 can be stably mounted on the heat exchange shell 1, and the inside of the heat exchange shell 1 can be sealed and cooled, and when it is needed to inspect the inside of the heat exchange shell 1, the mounting frame 18 is detached from the heat exchange shell 1, and then the sealing door 17 is detached.

[0044] With reference to Figure 4 The top end of the impurity removal box 6 is detachably connected with a protective cover 20, and the bottom end of the protective cover 20 is fixedly connected with an impurity removal screen plate 21.

[0045] When the cooling water enters the impurity removal box 6 through the water inlet pipe 7, the impurity removal screen plate 21 can filter the impurities in the cooling water, and the filtered cooling water can directly enter the cooling cover 5 through the connecting pipe 10, and when it is needed to clean the impurity removal screen plate 21, the protective cover 20 is directly detached from the impurity removal box 6.

[0046] To sum up, the methanol hydrogen production equipment gas-liquid heat exchanger first makes cooling water enter into the impurity removal box 6 through the water inlet pipe 7, the impurity removal screen plate 21 filters the impurities in the cooling water, then the filtered cooling water enters into the cooling cover 5 through the connecting pipe 10 to cool the cooling pipe 4, at the same time, the cooling water in the cooling cover 5 enters into the filter box 8 through the water outlet pipe 11, the water passing pipe 12 and the telescopic pipe 13, at this time, the filter frame 16 filters the impurities and scale in the cooling water again, the filtered cooling water enters into the cooling cover 5 through the circulating pipe 14 to flow again, thereby circulating cooling the air inlet pipe 2, the air outlet pipe 3 and the cooling pipe 4, improving the heat exchange efficiency.

[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas-liquid heat exchanger for a methanol hydrogen production plant, characterized by, Include: Heat exchange shell (1); Air inlet pipe (2), the air inlet pipe (2) is communicated in one side of the heat exchange shell (1), and the other side of the heat exchange shell (1) is communicated with air outlet pipe (3); Cooling pipe (4), the cooling pipe (4) is communicated between the air inlet pipe (2) and the air outlet pipe (3); Cooling cover (5), the cooling cover (5) is sleeved on the cooling pipe (4); Impurity removal box (6), the impurity removal box (6) is located in one side of the cooling cover (5), and one side of the impurity removal box (6) is communicated with water inlet pipe (7); Filter box (8), the filter box (8) is located in the other side of the cooling cover (5); Circulation assembly, the circulation assembly is arranged between the filter box (8), the impurity removal box (6) and the cooling cover (5); Backflush pipe (9), the backflush pipe (9) is communicated on the circulation assembly.

2. The gas-liquid heat exchanger for a methanol hydrogen production apparatus according to claim 1, characterized by The circulation assembly includes: Connecting pipe (10), the connecting pipe (10) is communicated between the impurity removal box (6) and the cooling cover (5), and the connecting pipe (10) is provided with water inlet valve; Water outlet pipe (11), the water outlet pipe (11) is communicated between the cooling cover (5) and the backflush pipe (9), and the water outlet pipe (11) is provided with water outlet valve; Water pipe (12), the water pipe (12) is communicated between the water outlet pipe (11) and the filter box (8), and the water pipe (12) is provided with water valve; Telescopic pipe (13), the telescopic pipe (13) is communicated on the water pipe (12); Circulation pipe (14), the circulation pipe (14) is communicated between the filter box (8) and the cooling cover (5), and the circulation pipe (14) is provided with circulation valve.

3. The gas-liquid heat exchanger for methanol hydrogen production equipment according to claim 2, characterized in that, The top end of the filter box (8) is detachably connected with sealing cover (15), the sealing cover (15) is provided with through hole matched with the water pipe (12), and the bottom end of the sealing cover (15) is fixedly connected with filter frame (16), and the filter frame (16) is provided with a plurality of filter screen openings.

4. The gas-liquid heat exchanger for methanol hydrogen production equipment according to claim 3, characterized in that, One side of the heat exchange shell (1) is provided with access hole, the access hole is connected with sealing door (17), the sealing door (17) is fixedly connected with sealing pad, and the sealing door (17) is fixedly connected with mounting frame (18), and the mounting frame (18) and the heat exchange shell (1) are symmetrically connected with two mounting screws (19) through threads.

5. A gas-liquid heat exchanger for methanol hydrogen production equipment according to claim 4, characterized in that, The top end of the impurity removal box (6) is detachably connected with protective cover (20), and the bottom end of the protective cover (20) is fixedly connected with impurity removal screen plate (21).

6. A gas-liquid heat exchanger for methanol hydrogen production equipment according to claim 5, characterized in that, The inner side wall of the heat exchange shell (1) is fixedly connected with a plurality of connecting rods, and the plurality of connecting rods are fixedly connected with the cooling cover (5).

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