CN216191062U - Methanol automobile tank car loading tail gas collecting and processing system - Google Patents
Methanol automobile tank car loading tail gas collecting and processing system Download PDFInfo
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- CN216191062U CN216191062U CN202122634948.0U CN202122634948U CN216191062U CN 216191062 U CN216191062 U CN 216191062U CN 202122634948 U CN202122634948 U CN 202122634948U CN 216191062 U CN216191062 U CN 216191062U
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Abstract
The utility model provides a methanol automobile tank car loading tail gas collecting and processing system, which comprises: the methanol loading crane pipe is connected with the tank wagon; the ejector is communicated with the methanol loading crane pipe; the ejector forms negative pressure so as to lead the tail gas into the washing absorption tower; and the circulating device is communicated with the washing absorption tower. The ejector forms negative pressure to lead tail gas into the washing absorption tower, so that the problem of tail gas loss caused by loose connection of a methanol loading crane pipe and a tank car can be avoided, and the pollution of the tail gas to the environment and the injury to the human body are reduced. In addition, the utility model forms washing-absorption-injection integrated design, is easy to operate, has simple process flow, occupies small area and is easy to arrange.
Description
Technical Field
The utility model relates to the technical field of production equipment and waste gas treatment of methanol production enterprises in coal chemical industry, in particular to a methanol automobile tank car loading tail gas collecting and treating system.
Background
The tail gas of the conventional methanol automobile tank car is mostly discharged on site or collected by an induced draft fan and then treated in a centralized way. The pollution to the environment caused by local discharge is large, and the concept of green, environment-friendly and clean energy of enterprises is not met. Because the loading oil filling riser of some types is adopted during loading, the connection part of the oil filling riser and the tank car cannot be tight and compact in the loading process, and air is often mixed in. The fan is used for collecting the materials, the risk of forming an explosion environment after the temperature is too high or static electricity is generated exists, the collection effect is not ideal due to the characteristics of energy consumption and easiness in damage of the fan, and the overall safety risk level is high.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the utility model provides a methanol automobile tank truck loading tail gas collecting and processing system.
The utility model provides a methanol automobile tank car loading tail gas collecting and processing system, which comprises: the methanol loading crane pipe is connected with the tank wagon; the ejector is communicated with the methanol loading crane pipe; the ejector forms negative pressure so as to lead the tail gas into the washing absorption tower; and the circulating device is communicated with the washing absorption tower.
According to the methanol automobile tank wagon tail gas collecting and processing system, the ejector forms negative pressure to guide tail gas into the washing absorption tower, so that the problem of tail gas loss caused by the loose connection between a methanol loading crane pipe and a tank wagon can be avoided, and the pollution of the tail gas to the environment and the injury to human bodies are reduced. Specifically, the ejector principle is that when fluid flows in an ejector pipe, the dynamic pressure reaches the maximum value and the static pressure reaches the minimum value at the narrowest part of the pipe, the speed of gas (liquid) rises due to the reduction of the cross section area of through flow, and the whole inrush current is subjected to the pipe reducing process at the same time, so that the pressure is reduced at the same time, further pressure difference is generated, the pressure difference can provide external suction for the fluid to form vacuum, namely negative pressure, and the methanol loading tail gas is ejected. In addition, the utility model forms washing-absorption-injection integrated design, is easy to operate, has simple process flow, occupies small area and is easy to arrange.
The methanol automobile tank truck loading tail gas collecting and processing system according to the technical scheme of the utility model can also have the following additional technical characteristics:
in the above technical solution, the scrubbing-and-absorbing tower includes: the spraying system is used for spraying the tail gas; and the liquid storage space is positioned at the lower part of the washing absorption tower.
In the technical scheme, the loading tail gas is sent to a position below the liquid level of a liquid storage space of the washing absorption tower through the ejector to form a certain liquid seal, the loading tail gas enters and exits a mixing section in the ejector and is dissolved primarily under the liquid level, the loading tail gas which is not dissolved is continuously dissolved through the spraying system, and finally the residual air is sent to the methanol production incineration system. The water replenishing of the washing absorption tower can be supplied by a desalted water system, and the obtained methanol aqueous solution can be recycled according to different concentrations or sent to a methanol production rectifying device for recovering methanol. In addition, the amount of the used spray water is determined by the concentration of the methanol absorption solution, and the washing absorption tower is provided with an overflow port, so that the obtained methanol absorption solution is kept in a safe concentration range, and the safety of the whole system is improved.
In the above technical solution, the spraying system at least includes a nozzle pipeline and a filler part.
In this technical scheme, the shower nozzle pipeline directly communicates desalination system to spray the processing to tail gas, and the spray medium adopts the desalinized water, can avoid producing static, and easily control the concentration of absorption liquid and the methanol gas phase content that the absorption liquid volatilizees all in safe range, compare and use the fan to collect more safe and reliable, and consume lower. The filler part is used for heat preservation.
In the above technical solution, the circulation device includes: the solution circulating pump is communicated with the washing absorption tower; and the solution cooler is communicated with the solution circulating pump so as to cool the circulating solution.
In this technical scheme, the solution circulating pump can provide the power that the ejector produced the negative pressure, because when methyl alcohol is dissolved in water, belongs to the little exothermic reaction, for the accumulation of heat when avoiding absorbing, sets up the solution cooler behind the solution circulating pump to with solution temperature control below 35 ℃, further guarantee the security of system. In addition, for leading the penetrating effect to reach the best, ejector structure size and solution circulating pump lift, flow can carry out corresponding equipment design according to the flow of produced loading tail gas, the negative pressure degree that wants to reach. The flow regulation of the circulating liquid can be arranged behind the solution circulating pump, and when one or more tank cars are loaded, the tank cars are kept within the working range, so that the aim of elastic operation is fulfilled.
In the technical scheme, the methanol loading crane pipe is connected to the top or the bottom of the tank car.
In the technical scheme, the methanol loading crane pipe is connected with the tank car through a connecting piece.
In this technical scheme, the connecting piece can be for sealing cap and quick-operation joint, and quick-operation joint is used for and tank wagon intercommunication, and sealing cap is used for strengthening sealedly.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a methanol vehicle tank truck tail gas collection and treatment system according to an embodiment of the present invention;
wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:
m01-methanol loading crane pipe, X01-ejector, P01-solution circulating pump, T01-washing absorption tower, E01-solution cooler.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
A methanol automotive tank truck-mounted exhaust gas collection and treatment system provided according to some embodiments of the present invention is described below with reference to fig. 1.
Some embodiments of the present application provide a methanol automobile tank truck loading tail gas collection and treatment system.
As shown in fig. 1, a first embodiment of the present invention provides a methanol automobile tank truck loading tail gas collecting and processing system, comprising: the methanol loading crane pipe M01 is connected with the tank wagon; the ejector X01 is communicated with the methanol loading crane pipe M01; the washing absorption tower T01 is communicated with the ejector X01, wherein the ejector X01 forms negative pressure to introduce tail gas into the washing absorption tower T01; and the circulating device is communicated with the washing absorption tower T01.
According to the methanol automobile tank car loading tail gas collecting and processing system, the ejector X01 forms negative pressure to guide tail gas into the washing absorption tower T01, so that the problem of tail gas dissipation caused by the fact that a methanol loading crane pipe M01 is not tightly connected with a tank car can be avoided, and pollution of the tail gas to the environment and injury to human bodies are reduced. Specifically, the ejector X01 is based on the principle that when fluid flows in a venturi tube, the dynamic pressure reaches the maximum value and the static pressure reaches the minimum value at the narrowest part of a pipeline, the velocity of gas (liquid) rises due to the reduction of the cross-sectional area of the through-flow, and the whole inrush current is subjected to the pipeline reduction process at the same time, so that the pressure is reduced at the same time, and further pressure difference is generated, and the pressure difference can provide external suction for the fluid to form vacuum, namely negative pressure, so that methanol loading tail gas is ejected. In addition, the utility model forms washing-absorption-injection integrated design, is easy to operate, has simple process flow, occupies small area and is easy to arrange.
The second embodiment of the present invention proposes a methanol automobile tank truck loading tail gas collecting and processing system, and on the basis of the first embodiment, the scrubbing and absorbing tower T01 comprises: the spraying system is used for spraying the tail gas; and the liquid storage space is positioned at the lower part of the washing absorption tower T01.
In this embodiment, the loading tail gas is sent to a position below the liquid level of the liquid storage space of the washing absorption tower T01 through the ejector X01 to form a certain liquid seal, the loading tail gas enters and exits the mixing section in the ejector X01 and below the liquid level to be dissolved for the first time, the loading tail gas which is not dissolved is continuously dissolved through the spraying system, and finally the residual air is sent to the methanol production incineration system. The water supplement of the washing absorption tower T01 can be supplied by a desalted water system, and the obtained methanol aqueous solution can be recycled according to different concentrations or sent to a methanol production rectifying device for recovering methanol. In addition, the amount of the used spray water is determined by the concentration of the methanol absorption solution, and the washing absorption tower T01 is provided with an overflow port, so that the obtained methanol absorption solution is kept in a safe concentration range, and the safety of the whole system is improved.
The utility model provides a methanol automobile tank truck loading tail gas collecting and processing system, and on the basis of any one of the above embodiments, the spraying system at least comprises a spray head pipeline and a filler part.
In this embodiment, the shower nozzle pipeline directly communicates desalination system to spray the processing to tail gas, and the spray media adopts the desalinized water, can avoid producing static, and easily control the concentration of absorption liquid and the methanol gas phase content that the absorption liquid volatilizees out all at safe within range, compare and use the fan to collect more safe and reliable, and consume lowly.
The utility model provides a methanol automobile tank truck loading tail gas collecting and processing system, and on the basis of any one of the above embodiments, the circulating device comprises: a solution circulating pump P01 communicated with the washing absorption tower T01; and the solution cooler E01 is communicated with the solution circulating pump P01 to cool the circulating solution.
In this embodiment, solution circulating pump P01 can provide the power that ejector X01 produced the negative pressure, because when methyl alcohol is dissolved in water, belongs to the little exothermic reaction, for the accumulation of heat when avoiding absorbing, sets up solution cooler E01 behind solution circulating pump P01 to with solution temperature control below 35 ℃, further guarantee the security of system. In addition, in order to achieve the best injection effect, the structural size of the injector X01 and the lift and flow of the solution circulating pump P01 can be correspondingly designed according to the flow of the generated loading tail gas and the negative pressure degree to be achieved. The flow rate of the circulating liquid can be adjusted after the solution circulating pump P01, when one or more tank cars are loaded, the tank cars are kept in the working range, and the aim of elastic operation is fulfilled.
The fifth embodiment of the utility model provides a methanol automobile tank truck loading tail gas collecting and processing system, and on the basis of any embodiment, the methanol loading crane pipe M01 is connected to the top or the bottom of the tank truck.
The utility model provides a methanol automobile tank truck loading tail gas collecting and processing system, and on the basis of any one of the above embodiments, the methanol loading crane pipe M01 is connected with the tank truck through a connecting piece.
In this embodiment, the connector may be a sealing cap for communicating with the tank car and a quick connector for enhancing sealing.
In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A methanol automobile tank car loading tail gas collecting and processing system is characterized by comprising:
a methanol loading crane pipe (M01) connected with the tank wagon;
the ejector (X01) is communicated with the methanol loading crane pipe (M01) to ensure that the pipeline is in micro negative pressure;
a scrub absorber (T01) in communication with the eductor (X01), wherein the eductor (X01) creates a negative pressure to introduce tail gas into the scrub absorber (T01);
a circulating device communicated with the washing absorption tower (T01).
2. The methanol automotive tank truck-mounted exhaust gas collection and treatment system according to claim 1, wherein the scrub absorption tower (T01) comprises:
the spraying system is used for spraying the tail gas;
and the liquid storage space is positioned at the lower part of the washing absorption tower (T01).
3. The methanol automotive tank truck loading tail gas collecting and processing system as claimed in claim 2, wherein the spraying system at least comprises a nozzle pipeline and a filler part.
4. The methanol automobile tank wagon tail gas collecting and treating system as claimed in claim 3, wherein the spraying medium for spraying treatment is desalted water.
5. The methanol automobile tank wagon tail gas collecting and processing system as claimed in claim 3, wherein the circulating device comprises:
a solution circulation pump (P01) in communication with the scrubbing absorber (T01);
and the solution cooler (E01) is communicated with the solution circulating pump (P01) to cool the circulating solution.
6. The methanol automobile tank wagon loading tail gas collecting and processing system as claimed in any one of claims 1 to 5, wherein the methanol loading crane pipe (M01) is connected to the top or bottom of the tank wagon.
7. The methanol automobile tank wagon tail gas collecting and processing system as claimed in claim 6, wherein the methanol loading crane pipe (M01) is connected with the tank wagon through a connecting piece.
8. The methanol automotive tank car loading tail gas collecting and processing system as claimed in claim 7, wherein the connecting member comprises a sealing cap and a quick connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122634948.0U CN216191062U (en) | 2021-10-29 | 2021-10-29 | Methanol automobile tank car loading tail gas collecting and processing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122634948.0U CN216191062U (en) | 2021-10-29 | 2021-10-29 | Methanol automobile tank car loading tail gas collecting and processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950076A (en) * | 2022-04-19 | 2022-08-30 | 武汉轻工大学 | Methanol escape gas treatment process |
| CN115337749A (en) * | 2022-08-26 | 2022-11-15 | 河南中鸿集团煤化有限公司 | Methanol reservoir area and methanol loading VOCs gas treatment system |
-
2021
- 2021-10-29 CN CN202122634948.0U patent/CN216191062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950076A (en) * | 2022-04-19 | 2022-08-30 | 武汉轻工大学 | Methanol escape gas treatment process |
| CN115337749A (en) * | 2022-08-26 | 2022-11-15 | 河南中鸿集团煤化有限公司 | Methanol reservoir area and methanol loading VOCs gas treatment system |
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