CN218058475U - A hydrogen chloride synthesis gas dehydrogenation device - Google Patents

Abstract

The utility model discloses a dehydrogenation device in hydrogen chloride synthetic gas relates to hydrogen chloride synthesis processing equipment technical field, including the dehydrogenation rectifying tower body, the right wall bottom position intercommunication of dehydrogenation rectifying tower body has the emission bottom tube, and the roof position intercommunication of dehydrogenation rectifying tower body has the emission push pipe, and the left wall lower extreme position intercommunication of dehydrogenation rectifying tower body has the hydrogen chloride to advance the pipe, and the right wall lower extreme position fixation of dehydrogenation rectifying tower body has high pressure resistant dilatation case, and high pressure resistant dilatation case setting is in the top position of discharging the bottom tube, installs dilatation mechanism on the high pressure resistant dilatation case. When excessive liquefied high-purity hydrogen chloride is accumulated in the inner cavity of the dehydrogenation rectification tower body, the high-pressure telescopic cylinder is started to contract so that the connecting plate and the sealing rubber plug synchronously move upwards, and the liquefied high-purity hydrogen chloride automatically enters the inner cavity of the high-pressure-resistant expansion tank through the communicating pipe to be stored under the action of pressure, so that the capacity of the dehydrogenation rectification tower body is effectively increased.

Description

A hydrogen chloride synthesis gas dehydrogenation device

technical field

The utility model relates to the technical field of hydrogen chloride synthesis processing equipment, in particular to a hydrogen chloride synthesis gas dehydrogenation device.

Background technique

Hydrogen chloride is an important chemical product and an indispensable raw material for processing many chemical products. In the process of hydrogen chloride synthesis, it is necessary to remove the hydrogen mixed in hydrogen chloride. The traditional hydrogen chloride synthesis gas dehydrogenation device can basically meet people's needs. Use requirements, but there are still certain problems, the specific problems are as follows:

At present, most dehydrogenation devices in hydrogen chloride synthesis gas in the market are mainly completed by dehydrogenation distillation towers, but the volume of existing dehydrogenation rectification towers is fixed, and the liquefied high-purity hydrogen chloride after dehydrogenation accumulates at the bottom of the tower and waits for filling. However, the volume of the existing dehydrogenation distillation tower is relatively limited and cannot store too much liquefied high-purity hydrogen chloride.

Utility model content

The purpose of this utility model is to provide a hydrogen chloride synthesis gas dehydrogenation device to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical scheme: a hydrogen chloride synthesis gas dehydrogenation device, including a dehydrogenation rectification tower body, the bottom of the right wall of the dehydrogenation rectification tower body is connected with a discharge bottom pipe, The top wall position of the dehydrogenation rectification tower body is connected with a discharge top pipe, the lower end position of the left wall of the dehydrogenation rectification tower body is connected with a hydrogen chloride inlet pipe, and the lower end position of the right wall of the dehydrogenation rectification tower body is A high-pressure-resistant expansion box is fixed, and the high-pressure-resistant expansion box is arranged above the discharge bottom pipe, and an expansion mechanism is installed on the high-pressure-resistant expansion box.

Based on the above technical features, it is convenient to increase the effective capacity of the dehydrogenation distillation tower body through the capacity expansion mechanism, and it is convenient to store a larger volume of high-purity liquefied hydrogen chloride.

Preferably, in the above-mentioned dehydrogenation device for hydrogen chloride synthesis gas, the expansion mechanism includes a connecting pipe, a connecting plate, a sealing rubber plug, a high-pressure telescopic cylinder and a cover plate, and an extension The connecting pipe to the internal cavity of the dehydrogenation distillation tower, the top of the high-pressure resistant expansion box is provided with a cover plate, and the cover plate and the high-pressure resistant expansion box are connected by a bolt assembly, and the top position of the cover plate is fixed There is a high-pressure telescopic cylinder, the output end of the bottom of the high-pressure telescopic cylinder penetrates the cover plate and extends to the inner cavity of the high-pressure resistant expansion box, the output end of the high-pressure telescopic cylinder is fixedly installed with a connecting plate, and the outer wall of the connecting plate is wrapped with a high-pressure resistant Sealing rubber plugs that are in contact with the inner walls around the expansion box.

Based on the above technical features, it is convenient to increase the effective capacity of the dehydrogenation rectification tower body through the expansion mechanism, and it is convenient to store a larger volume of high-purity liquefied hydrogen chloride.

Preferably, in the above-mentioned dehydrogenation device for hydrogen chloride synthesis gas, control valves are fixed on the outer walls of the discharge bottom pipe, hydrogen chloride inlet pipe and discharge top pipe.

Based on the above technical features, it is convenient to control the entry and exit of hydrogen chloride and the discharge of hydrogen.

Preferably, in the above-mentioned hydrogen chloride synthesis gas dehydrogenation device, a bracket is fixed at the bottom of the left wall of the dehydrogenation distillation tower body, and a cooling box is set outside the hydrogen chloride inlet pipe, and the bottom of the cooling box is The position is fixed with the left position of the top of the bracket, and the top position of the cooling box is set as an opening.

Based on the above technical features, it is convenient to replenish and replace cooling water.

Preferably, in the above-mentioned dehydrogenation device for hydrogen chloride synthesis gas, the outer fixed sleeve of the hydrogen chloride inlet pipe is provided with a cooling sleeve, and the outer wall of the cooling sleeve is fixed with cooling fins at equal angles, and the cooling sleeve and the cooling fins are both provided with In the inner cavity of the cooling box, the materials of the hydrogen chloride inlet pipe, the cooling jacket and the cooling fins are all heat-conducting metals.

Based on the above technical features, it is convenient to improve the heat dissipation efficiency and make the cooling effect of the hydrogen chloride gas to be dehydrogenated more obvious.

Preferably, in the above-mentioned dehydrogenation device for hydrogen chloride synthesis gas, a refrigeration compressor is fixedly installed on the right side of the top of the bracket, and a cold air pipe running through the cooling box is fixedly installed at the left output end of the refrigeration compressor, and the cooling The air pipe is arranged at the lower position of the cooling fins.

Based on the above technical features, it is convenient to ensure the heat dissipation efficiency and the cooling effect of the cooling water.

Compared with the prior art, the beneficial effects of the utility model are:

Through the design of this technical scheme, when there is too much liquefied high-purity hydrogen chloride accumulated in the inner cavity of the dehydrogenation distillation tower, the high-pressure telescopic cylinder is started to shrink so that the connecting plate and the sealing rubber plug move upward synchronously, and the liquefied high-purity hydrogen chloride is liquefied under the action of pressure. Hydrogen chloride is automatically stored in the inner cavity of the high-pressure expansion box through the connecting pipe, thereby effectively increasing the capacity of the dehydrogenation distillation tower.

Description of drawings

Fig. 1 is a schematic diagram of the utility model overall front view sectional structure;

Fig. 2 is a schematic cross-sectional structural schematic diagram of a partial front view of the connection between the cooling box, the bracket and the dehydrogenation distillation tower body of the present invention;

Fig. 3 is a right view structural diagram of the connection between the heat dissipation sleeve and the heat dissipation fins of the present invention.

In the figure: 1. Cooling box; 2. Hydrogen chloride inlet pipe; 3. Support; 4. Air-conditioning pipe; 5. Refrigeration compressor; 6. Dehydrogenation and rectification tower body; ; 9, connecting pipe; 10, connecting plate; 11, sealing rubber plug; 12, high-pressure telescopic cylinder; 13, cover plate; 14, discharge jacking pipe; 15, control valve;

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-3, an embodiment provided by the utility model: a dehydrogenation device in a hydrogen chloride synthesis gas, comprising a dehydrogenation rectification tower body 6, and the bottom position of the right wall of the dehydrogenation rectification tower body 6 is connected with a Discharge bottom pipe 7, the top wall position of dehydrogenation rectification tower body 6 is connected with discharge top pipe 14, the position of left wall lower end of dehydrogenation rectification tower body 6 is communicated with hydrogen chloride inlet pipe 2, the position of dehydrogenation rectification tower body 6 The lower end of the right wall is fixed with a high-pressure expansion box 8, and the high-pressure expansion box 8 is arranged above the discharge bottom pipe 7, and an expansion mechanism is installed on the high-pressure expansion box 8.

Please refer to Figure 1 in the attached drawings of the specification: the expansion mechanism includes a connecting pipe 9, a connecting plate 10, a sealing rubber plug 11, a high-pressure telescopic cylinder 12, and a cover plate 13. The connecting pipe 9 of the inner cavity of the distillation column body 6 and the top position of the high-pressure resistant expansion box 8 are provided with a cover plate 13, and the cover plate 13 and the high-pressure resistant expansion box 8 are connected by a bolt assembly, and the top position of the cover plate 13 is fixed. There is a high-pressure telescopic cylinder 12, the output end of the bottom of the high-pressure telescopic cylinder 12 runs through the cover plate 13 and extends to the inner cavity of the high-pressure resistant expansion box 8, the output end of the high-pressure telescopic cylinder 12 is fixedly installed with a connecting plate 10, and the outer wall of the connecting plate 10 is wrapped with a resistant The sealing rubber plug 11 that is in contact with the inner wall of the high-pressure expansion box 8, when there is too much liquefied high-purity hydrogen chloride accumulated in the inner cavity of the dehydrogenation distillation tower body 6, the high-pressure telescopic cylinder 12 is started to shrink so that the connecting plate 10 and the sealing rubber plug 11 are synchronized Moving upward, under the action of pressure, the liquefied high-purity hydrogen chloride will automatically enter the inner cavity of the high-pressure-resistant expansion tank 8 through the connecting pipe 9 for storage, thereby effectively increasing the capacity of the dehydrogenation distillation tower body 6. When needed When replacing the sealing rubber plug 11, you only need to remove the cover plate 13 to drive the high-pressure telescopic cylinder 12, the sealing rubber plug 11 and the connecting plate 10 to move synchronously until they are completely separated from the resistant High pressure expansion box 8.

Please refer to Figures 1 and 2 in the accompanying drawings: the outer walls of the discharge bottom pipe 7, the hydrogen chloride inlet pipe 2 and the discharge top pipe 14 are all fixed with control valves 15, which facilitate the control of the entry and exit of hydrogen chloride and the discharge of hydrogen through the control valve 15.

Please refer to Figures 1 and 2 in the accompanying drawings: the bottom position of the left wall of the dehydrogenation distillation tower body 6 is fixed with a bracket 3, and the outer cover of the hydrogen chloride inlet pipe 2 is provided with a cooling box 1, and the bottom position of the cooling box 1 is connected to the top of the bracket 3 The position on the left side of the cooling box 1 is fixed, and the top position of the cooling box 1 is set as an opening. When dehydrogenation treatment is performed, an appropriate amount of cooling water is first injected into the inner cavity through the opening at the top of the cooling box 1 .

Please refer to Figures 1, 2 and 3 in the accompanying drawings: the outer fixed sleeve of the hydrogen chloride inlet pipe 2 is provided with a cooling sleeve 16, and the outer wall of the cooling sleeve 16 is fixed with cooling fins 17 at equal angles, and the cooling sleeve 16 and the cooling fins 17 are all provided In the inner cavity of the cooling box 1, the materials of the hydrogen chloride inlet pipe 2, the cooling jacket 16 and the cooling fins 17 are all heat-conducting metals. When the hydrogen chloride gas flows through the hydrogen chloride inlet pipe 2, it can quickly complete heat exchange with the cooling water in the inner cavity of the cooling box 1, thereby greatly reducing the temperature of the hydrogen chloride, which is beneficial to the subsequent dehydrogenation work.

Please refer to Figures 1 and 2 in the accompanying drawings: a refrigeration compressor 5 is fixedly installed on the right side of the top of the bracket 3, and a cold air pipe 4 that runs through the cooling box 1 is fixedly installed at the left output end of the refrigeration compressor 5, and the cold air pipe 4 is set At the position below the cooling fins 17, when dehydrogenation treatment is carried out, the refrigeration compressor 5 is started to inject the generated cold air into the inner cavity of the cold air pipe 4 and in the process of flowing of the cold air, it will interact with the cooling water in the inner cavity of the cooling box 1. The heat exchange is completed, thereby reducing the water temperature of the cooling water in the inner cavity of the cooling box 1 to ensure the cooling effect.

Working principle: When using the hydrogen chloride synthesis gas dehydrogenation device, the hydrogen chloride to be dehydrogenated is controlled by the control valve 15 to enter the dehydrogenation distillation tower body 6 through the hydrogen chloride inlet pipe 2 for rectification and purification, and the purified high-purity hydrogen chloride Liquefied and accumulated in the bottom area of the dehydrogenation distillation tower body 6, the hydrogen with a low boiling point is discharged through the discharge top pipe 14 and transferred to the recovery device for reuse. When filling, the liquefied high-purity hydrogen chloride enters through the discharge bottom pipe 7 Fill the system and complete the subsequent filling process. When there is too much liquefied high-purity hydrogen chloride accumulated in the inner cavity of the dehydrogenation distillation tower body 6, start the high-pressure telescopic cylinder 12 to shrink so that the connecting plate 10 and the sealing rubber plug 11 move upward synchronously. Under the action of pressure, the liquefied high-purity hydrogen chloride is automatically stored in the inner cavity of the high-pressure expansion tank 8 through the connecting pipe 9, thereby effectively increasing the capacity of the dehydrogenation distillation tower body 6. When the sealing rubber needs to be replaced When the plug is 11, it is only necessary to remove the cover plate 13 through the threaded assembly provided between the cover plate 13 and the high-pressure resistant expansion box 8 to drive the high-pressure telescopic cylinder 12, the sealing rubber plug 11 and the connecting plate 10 to move synchronously until they are completely separated from the high-pressure resistant expansion box 8, the above are all working principles of the present utility model.

In the description of this specification, descriptions referring to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in the description of the present invention. In at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments are not exhaustive and do not limit the invention to specific implementations. Obviously, many modifications and variations can be made based on the contents of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that those skilled in the art can well understand and utilize the utility model. The invention is to be limited only by the claims and their full scope and equivalents.

Claims (6)

1. A dehydrogenation device for hydrogen chloride synthesis gas, comprising a dehydrogenation distillation tower body (6), characterized in that: the bottom of the right wall of the dehydrogenation distillation tower body (6) is connected with a discharge bottom pipe (7 ), the top wall of the dehydrogenation distillation tower body (6) is connected with a discharge top pipe (14), and the lower end of the left wall of the dehydrogenation rectification tower body (6) is connected with a hydrogen chloride inlet pipe (2) , the lower end of the right wall of the dehydrogenation distillation tower body (6) is fixed with a high-pressure resistant expansion box (8), and the high-pressure resistant expansion box (8) is arranged above the discharge bottom pipe (7). A capacity expansion mechanism is installed on the high-pressure capacity expansion box (8). 2. The hydrogen chloride synthesis gas dehydrogenation device according to claim 1, characterized in that: the expansion mechanism includes a connecting pipe (9), a connecting plate (10), a sealing rubber plug (11), a high-pressure telescopic cylinder (12 ) and a cover plate (13), the bottom of the inner cavity of the high-pressure resistant expansion box (8) is provided with a connecting pipe (9) extending to the inner cavity of the dehydrogenation distillation tower (6), and the high-pressure resistant expansion box ( 8) is provided with a cover plate (13) at the top position, and the cover plate (13) is connected with the high-pressure resistant expansion box (8) through a bolt assembly, and the top position of the cover plate (13) is fixed with a high-pressure telescopic cylinder (12), the bottom output end of the high-pressure telescopic cylinder (12) penetrates the cover plate (13) and extends to the inner cavity of the high-pressure resistant expansion box (8), and the output end of the high-pressure telescopic cylinder (12) is fixedly installed with a connecting plate (10), the outer wall of the connection plate (10) is wrapped with a sealing rubber plug (11) that is in contact with the inner wall around the high-pressure resistant expansion box (8). 3. The hydrogen chloride synthesis gas dehydrogenation device according to claim 1, characterized in that: the outer walls of the discharge bottom pipe (7), hydrogen chloride inlet pipe (2) and discharge top pipe (14) are all fixed with control valves (15). 4. The hydrogen chloride synthesis gas dehydrogenation device according to claim 1, characterized in that: the bottom position of the left wall of the dehydrogenation distillation tower body (6) is fixed with a bracket (3), and the hydrogen chloride inlet pipe ( 2) is equipped with a cooling box (1), the bottom of the cooling box (1) is fixed to the left side of the top of the bracket (3), and the top of the cooling box (1) is set in an open shape. 5. The hydrogen chloride synthesis gas dehydrogenation device according to claim 1, characterized in that: the outer fixed sleeve of the hydrogen chloride inlet pipe (2) is provided with a cooling jacket (16), and the outer wall of the cooling jacket (16) The heat dissipation fins (17) are fixed at equal angles, and the heat dissipation sleeve (16) and the heat dissipation fins (17) are all arranged in the inner cavity of the cooling box (1), and the hydrogen chloride inlet pipe (2), heat dissipation sleeve (16) and The heat dissipation fins (17) are made of thermally conductive metal. 6. The hydrogen chloride synthesis gas dehydrogenation device according to claim 4, characterized in that: a refrigeration compressor (5) is fixedly installed on the right side of the top of the bracket (3), and the refrigeration compressor (5) is left A cold air pipe (4) penetrating through the cooling box (1) is fixedly installed at the side output end, and the cold air pipe (4) is arranged below the heat dissipation fin (17).

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