CN220012148U - Water scrubber circulating system in methanol pyrolysis hydrogen production process - Google Patents
Water scrubber circulating system in methanol pyrolysis hydrogen production process Download PDFInfo
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- CN220012148U CN220012148U CN202320919192.0U CN202320919192U CN220012148U CN 220012148 U CN220012148 U CN 220012148U CN 202320919192 U CN202320919192 U CN 202320919192U CN 220012148 U CN220012148 U CN 220012148U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 264
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 239000001257 hydrogen Substances 0.000 title claims abstract description 37
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 37
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000000197 pyrolysis Methods 0.000 title abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 81
- 239000007788 liquid Substances 0.000 claims abstract description 73
- 238000005406 washing Methods 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 24
- 238000010612 desalination reaction Methods 0.000 claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 230000001502 supplementing effect Effects 0.000 claims abstract description 11
- 238000011033 desalting Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 19
- 238000005336 cracking Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 238000002637 fluid replacement therapy Methods 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 238000001802 infusion Methods 0.000 claims description 2
- 238000002386 leaching Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 8
- 239000012495 reaction gas Substances 0.000 abstract description 3
- 239000003480 eluent Substances 0.000 description 28
- 238000012856 packing Methods 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003595 mist Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a circulating system of a water scrubber in the process of preparing hydrogen by methanol pyrolysis, which comprises a desalting water tank, a water scrubber, a desalting water pump, a circulating pump, a decomposing gas buffer tank and a regulating valve. The circulating pump and the water washing tower form a main structure of a circulating system, a self-circulating system is added in the water washing tower through the circulating pump, the use level of the leacheate of the water washing tower is greatly increased while the liquid level of the water washing tower and the circulating amount of an external circulating system are kept unchanged, and the liquid level balance in the water washing tower and the leacheate in the water washing tower are maintained and diluted through arranging a liquid supplementing inlet on the water washing tower. The circulating system of the water scrubber in the process of preparing hydrogen by splitting methanol can thoroughly remove residual methanol in reaction gas, and can obtain better leaching effect on the premise that the volume of the original desalination water tank and the power of the desalination water pump are kept unchanged.
Description
Technical Field
The utility model belongs to the technical field of methanol pyrolysis hydrogen production devices, and particularly relates to a water scrubber circulation system in a methanol pyrolysis hydrogen production process.
Background
Hydrogen is used as a novel energy source with high heat value and no pollution, and the demand of high-purity hydrogen in industry is increasing. Compared with the water electrolysis process hydrogen production and the natural gas reforming hydrogen production, the methanol pyrolysis hydrogen production process has the characteristics of small single investment, low cost, cleanness and no pollution. The hydrogen production by methanol pyrolysis generally refers to the process of obtaining hydrogen by pyrolysis under the action of a catalyst, wherein the process comprises the steps of mixing methanol with desalted water, heating for vaporization, and carrying out pyrolysis. In general, after the technological process of hydrogen production by methanol pyrolysis, a pressure swing adsorption process is needed to purify hydrogen, and finally, the product hydrogen with the purity of more than 99.9% can be obtained. Since methanol belongs to polar molecules and is easily attached to an adsorbent to affect the adsorption effect of pressure swing adsorption, the methanol content in the decomposed gas needs to be reduced as much as possible before pressure swing adsorption.
In the process of preparing hydrogen by splitting methanol, after the gas at the outlet of the reactor is cooled, the gas is required to be leached by desalted water in a water scrubber, and methanol carried in the split gas is recovered while the split gas is purified. The existing water washing tower circulating system is an external circulating system consisting of a water washing tower, a desalting water pump and a desalting water tank, wherein the water washing tower has liquid level limitation, and if the using amount of the eluent is increased, the volume of the desalting water tank is greatly increased. The water scrubber is a pressurized system, the desalted water tank is an atmospheric system, the leacheate flows back to the desalted water tank from the water scrubber, and the instability of the system can be increased due to the excessive volume of the desalted water tank. Because of the pressure difference between the water scrubber and the desalinated water tank, a relatively high power desalinated water pump is required to deliver desalinated water from the desalinated water tank to the water scrubber. The problems cause that the using amount of the leacheate in the existing water washing tower is far from enough to reduce the methanol in the decomposed gas to a lower level, and the leaching is not thorough. And the decomposed gas which is leached and purified by the water washing tower carries more water mist, so that the decomposed gas stores more water in the pipeline and the decomposed gas buffer tank, and the normal operation of equipment is not facilitated.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a circulating system of a water scrubber in the process of preparing hydrogen by methanol pyrolysis, a self-circulating system and a water removal filter element are additionally arranged on the basis of a traditional water scrubber, and compared with the traditional water scrubber, the circulating system has the characteristics of thorough leaching and gas-liquid separation function, so that the decomposed gas is purified more thoroughly, and pure and dry decomposed gas is conveyed to a pressure swing adsorption section.
The utility model aims at realizing the technical scheme that the circulating system of the water scrubber in the process of preparing hydrogen by cracking methanol comprises a desalination water tank, a water scrubber, a desalination water pump, a circulating pump, a decomposed gas buffer tank and a regulating valve.
The water washing tower comprises a skirt, a water outlet, a circulating liquid outlet, a decomposing gas inlet, a fluid supplementing inlet, a spray nozzle, a circulating liquid inlet and a decomposing gas outlet.
Wherein, the skirt is arranged at the bottom of the water washing tower, the water washing tower is fixed on the skirt, the position is kept unchanged, the water outlet is arranged at the bottom of the water washing tower, and the water outlet is connected with a desalination water tank pipeline. The circulating liquid outlet is arranged at the bottommost end of the straight section of the water washing tower and is connected with the inlet end of the circulating pump through a pipeline. The upper part of the circulating liquid outlet is sequentially provided with a decomposed gas inlet and a fluid replacement inlet, the fluid replacement inlet is connected with the outlet end of the desalting water pump in a pipeline way, and the inlet end of the desalting water pump is connected with the desalting water tank in a pipeline way. The circulating liquid inlet is arranged at the position of the spray nozzle above the straight section of the water washing tower, one end of the circulating liquid inlet is connected with the outlet end pipeline of the circulating pump, and the other end of the circulating liquid inlet is connected with the spray nozzle. The decomposing gas outlet is arranged at the top of the water scrubber, and is connected with the decomposing gas buffer tank through a pipeline.
The regulating valve is arranged between the connecting pipelines of the water washing tower and the desalination water tank.
Preferably, a grid is transversely arranged in the space of the water washing tower above the liquid supplementing inlet and below the spray nozzle, and silk screen packing is arranged on the grid.
Preferably, the top end of the water washing tower is provided with a filter element.
Further, the filter element is fixed on the seat block through bolts, and the seat block is welded on the upper sealing head of the water washing tower.
Preferably, the water washing tower is provided with a liquid level meter which is interlocked with the regulating valve.
The utility model provides a circulating system of a water scrubber in the process of preparing hydrogen by methanol pyrolysis, and further provides a circulating method of the water scrubber in the process of preparing hydrogen by methanol pyrolysis by using the circulating system, which comprises the following steps:
the decomposed gas enters the water scrubber through the decomposed gas inlet, the eluent at the bottom of the water scrubber is pumped to the spray nozzle by the circulating pump to carry out leaching on the decomposed gas, after methanol is removed by circulating leaching, the decomposed gas enters the decomposed gas buffer tank through the decomposed gas outlet water scrubber, and after the methanol in the decomposed gas is removed by the eluent, the eluent returns to the bottom of the water scrubber to form a leaching circulating system. In the circulating system, desalted water leacheate at the bottom of the water scrubber enters the desalted water tank at first, a certain amount of desalted water leacheate is pumped into the water scrubber through a desalted water pump, the leacheate remained in the water scrubber is diluted, the leacheate in the water scrubber flows back into the desalted water tank through a water outlet, and the flow rate of the leacheate flowing out of the water scrubber is changed by adjusting the opening of the adjusting valve.
Compared with the prior art, the utility model has the following advantages:
according to the circulating system and the circulating method for the water scrubber in the process of preparing hydrogen by cracking methanol, the self-circulating system is added in the water scrubber through the circulating pump, the using amount of the eluent in the water scrubber is greatly increased while the liquid level of the water scrubber and the circulating amount of the external circulating system are kept unchanged, no pressure difference exists between the inlet and the outlet of the circulating pump, and the load of the circulating pump is not additionally increased when the eluent amount is increased. The water scrubber is provided with a liquid supplementing inlet for maintaining the liquid level balance in the water scrubber and diluting the eluent in the water scrubber. The water scrubber circulation system in the methanol cracking hydrogen production process is applied to the methanol cracking hydrogen production process, residual methanol in the reaction gas can be thoroughly removed due to the increase of the usage amount of the leacheate, and a good leaching effect can be obtained on the premise that the volume of the original desalination water tank and the power of the desalination water pump are kept unchanged. The filter element is additionally arranged at the top of the water washing tower, so that water vapor in the decomposed gas can be effectively removed.
Drawings
FIG. 1 is a diagram showing the connection relationship of a water scrubber circulating system in the process of producing hydrogen by methanol pyrolysis;
FIG. 2 is a diagram showing the internal connection relationship of a water scrubber in a circulating system of the water scrubber in the process of producing hydrogen by methanol pyrolysis;
FIG. 3 is a diagram showing the connection relationship between the interior of a water scrubber provided with a grid and wire mesh packing in an embodiment of the present utility model;
FIG. 4 is a diagram showing the connection relationship between the inside of a water scrubber with a filter element according to the embodiment of the present utility model;
FIG. 5 is a diagram showing the internal connection relationship of a water scrubber in a circulating system of the water scrubber in the process of producing hydrogen by methanol pyrolysis in an embodiment of the utility model.
In the figure, 1 is a desalination water tank; 2 is a water washing tower; 3 is a desalting water pump; 4 is a circulating pump; 5 is a decomposing gas buffer tank; and 6 is a regulating valve. 201 is a skirt; 202 is a water outlet; 203 is a circulating liquid outlet; 204 is a decomposition gas inlet; 205 is a fluid infusion inlet; 206 is a grid; 207 is a spray head; 208 is the circulating liquid inlet; 209 is a filter element; 210 is a decomposed gas outlet; 211 is a wire mesh filler.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
As shown in fig. 1 to 2, the technical scheme of the utility model provides a water scrubber circulation system in the process of preparing hydrogen by methanol pyrolysis, which comprises a desalination water tank 1, a water scrubber 2, a desalted water pump 3 and a decomposed gas buffer tank 5, and is characterized in that: the circulation system further comprises a circulation pump 4 and a regulating valve 6.
The water scrubber 2 comprises a skirt 201, a water outlet 202, a circulating liquid outlet 203, a decomposed gas inlet 204, a liquid supplementing inlet 205, a spray nozzle 207, a circulating liquid inlet 208 and a decomposed gas outlet 210.
The skirt seat 201 is arranged at the bottom of the water washing tower 2, the water washing tower 2 is fixed on the skirt seat 201, the position is kept unchanged, the water outlet 202 is arranged at the bottom of the water washing tower 2, the water outlet 202 is connected with the pipeline of the desalination water tank 1, the circulating liquid outlet 203 is arranged at the bottommost end of the straight section of the water washing tower 2, and is connected with the pipeline of the inlet end of the circulating pump 4; a decomposed gas inlet 204 and a fluid replacement inlet 205 are sequentially arranged above the circulating fluid outlet 203, the fluid replacement inlet 205 is connected with the outlet end of the desalted water pump 3 in a way, and the inlet end of the desalted water pump 3 is connected with the pipeline of the desalted water tank 1; the circulating liquid inlet 208 is arranged at the position of the spray nozzle 207 above the straight section of the water scrubber 2, one end of the circulating liquid inlet 208 is connected with the outlet end of the circulating pump 4 through a pipeline, and the other end of the circulating liquid inlet 208 is connected with the spray nozzle 207; the decomposed gas outlet 210 is arranged at the top of the water scrubber 2, and the decomposed gas outlet 210 is connected with the decomposed gas buffer tank pipe 5 in a path.
The regulating valve 6 is arranged between the connecting pipelines of the water washing tower 2 and the desalination water tank 1.
According to the technical scheme, the self-circulation system is added in the water scrubber 2 by adopting the circulating pump 4, so that the consumption of the eluent in the water scrubber 2 is greatly increased while the liquid level in the water scrubber 2 and the circulation amount of the external circulation system are kept unchanged, and no pressure difference exists between the inlet and the outlet of the circulating pump 4, so that the load of the circulating pump is not additionally increased by increasing the eluent. Meanwhile, the water scrubber 2 is provided with a liquid supplementing inlet 205 which plays roles in maintaining the liquid level balance in the water scrubber 2 and diluting the eluent in the water scrubber 2. The improved water scrubber system can thoroughly remove residual methanol in the reaction gas due to the increase of the usage amount of the eluent, and can obtain better leaching effect on the premise that the volume of the original desalination water tank 1 and the power of the desalination water pump 3 are kept unchanged.
As shown in fig. 3, in one embodiment of the present utility model, a grid 206 is transversely disposed in the space of the water scrubber 2 above the fluid replenishment inlet 205 and below the spray head 207, and a wire mesh packing 211 is disposed on the grid 206. In this embodiment, the grill 206 is used to support and secure the position of the screen packing 211 while ensuring that desalinated water and decomposed gas can pass through the grill 206. The specific surface area of the silk screen packing 211 is large, the gas-liquid distribution is uniform, desalted water is covered and wetted on the surface of the silk screen packing 211, so that the gas-liquid contact area is enlarged, the improvement is achieved, meanwhile, the air flow disturbance can be increased by the silk screen packing 211, the flow speed of gas and liquid is reduced, the gas-liquid contact time is prolonged, and the mass transfer efficiency is improved.
As shown in fig. 4, a filter element 209 is arranged at the top end of the water scrubber 2. The filter element 209 is fixed on a seat block through bolts, and the seat block is welded on the upper seal head of the water scrubber 2. In this embodiment, a water removal filter 209 is provided at the top of the tower to increase the gas-liquid separation effect of the gas and prevent the decomposition of mist. The seat block is designed according to the size of the filter element 209, the filter element 209 is fixed on the seat block through bolts, the disassembly and the replacement are convenient, and the seat block is fixed on the upper seal head of the water scrubber 2 in a welding mode. The decomposed gas enters a water washing tower, is leached, filtered by a filter element, and enters a decomposed gas buffer tank 5 from an outlet of an upper sealing head. The self-circulation system and the water removal filter element 209 are additionally arranged on the basis of the traditional water washing tower, and compared with the traditional water washing tower, the device has the characteristics of thorough leaching and gas-liquid separation, enables the purification of the decomposed gas to be more thorough, and conveys the pure and dry decomposed gas to a pressure swing adsorption section.
In some embodiments of the utility model, a liquid level gauge is provided on the water scrubber 2, in linkage with the regulating valve 6.
The technical scheme of the utility model provides a water scrubber circulation system in the process of preparing hydrogen by methanol pyrolysis, and also provides a water scrubber circulation method in the process of preparing hydrogen by methanol pyrolysis by using the circulation system, which comprises the following steps:
the decomposed gas enters the water scrubber 2 through the decomposed gas inlet 204, the eluent at the bottom of the water scrubber 2 is pumped to the spray nozzle 207 by the circulating pump 4 to be leached, after methanol is removed by circulating leaching, the decomposed gas enters the decomposed gas buffer tank 5 through the decomposed gas outlet 210 out of the water scrubber 2, and after the methanol in the decomposed gas is removed by the eluent, the eluent returns to the bottom of the water scrubber 2 to form a leaching circulating system; in the circulation system, desalted water leacheate at the bottom of the water washing tower 2 firstly enters the desalted water tank 1, a certain amount of desalted water leacheate is pumped into the water washing tower 2 through the desalted water pump 3, the leacheate remained in the water washing tower 2 is diluted, the leacheate in the water washing tower 2 flows back to the desalted water tank 1 through the water outlet 202, and the flow rate of the leacheate flowing out of the water washing tower 2 is changed by adjusting the opening degree of the adjusting valve 6.
In the technical scheme of the utility model, the eluent is pumped from the bottom of the water scrubber 2 through the circulating pump 4, and is sprayed on the upper part of the straight section of the water scrubber 2 through the spray nozzle 207, so that the eluent is ensured to be uniformly distributed in the section space of the water scrubber 2. The sprayed leacheate contacts with the decomposed gas in the tower body, the mass transfer is carried out between the gas and the liquid to remove the methanol in the decomposed gas, then the leacheate returns to the water scrubber bottom under the action of gravity, and the leached and purified decomposed gas flows out of the water scrubber 2 and enters the decomposed gas buffer tank 5.
In order to avoid the problem that the concentration of methanol in the eluent is too high due to accumulation of the content of the methanol in the water washing tower 2, the removal effect of decomposed gas is affected, a water outlet is arranged at the bottom of the water washing tower 2, the sprayed liquid at the bottom of the water washing tower 2 is quantitatively discharged into the desalination water tank 1, and the sprayed liquid is mixed with desalted water in the desalination water tank 1 to be used as a raw material for hydrogen production by methanol pyrolysis for reaction. A liquid supplementing inlet is arranged above the decomposed gas inlet of the water scrubber 2, and a desalted water pump 3 pumps desalted water from the desalted water tank 1 and inputs the desalted water into the water scrubber 2 through the liquid supplementing inlet. The liquid level of the spray liquid in the water scrubber 2 has a great influence on the normal operation of the water scrubber 2, and too low liquid level can cause insufficient liquid leaching amount and influence the purification effect of decomposed gas; too high a liquid level can cause the decomposed gas to directly contact with the leacheate, increasing the water content in the decomposed gas. It is necessary to dynamically adjust the water output according to the liquid level of the water scrubber 2 in order to maintain dynamic balance of the liquid level in the water scrubber 2. A liquid level meter needs to be arranged on the water washing tower 2 and is interlocked with a regulating valve of a water outlet at the bottom of the tower. If the liquid level in the tower exceeds a set value, increasing the opening of the control valve 6 through linkage control so that the leacheate stored at the bottom of the water washing tower 2 flows back to the desalination water tank 1 more; if the liquid level in the tower is lower than the set value, the opening of the control valve 6 is reduced through linkage control, so that the reflux amount of the eluent stored at the bottom of the water washing tower 2 is reduced, and the liquid level in the water washing tower 2 is gradually increased. Continuously discharging the eluent and discharging desalted water can effectively dilute the concentration of methanol in the eluent, so as to ensure the leaching effect. In the prior art, since a self-circulation system is not present, the amount of the eluent is limited in order to maintain the liquid level of the water scrubber 2, which results in incomplete purification of the decomposed gas. According to the technical scheme of the utility model, due to the existence of the self-circulation system, the using amount of the eluent is ten times that of the liquid supplementing amount, and under the condition that the decomposing gas amount is certain, the liquid supplementing amount is increased to absorb more methanol, so that the leaching is more thorough.
The following describes a further method for circulating a water scrubber in the process of producing hydrogen by cracking methanol according to the technical scheme of the present utility model by means of an example, as shown in fig. 5, the circulating system of the water scrubber is composed of a desalination water tank 1, a water scrubber 2, a desalted water pump 3, a circulating pump 4, a decomposed gas buffer tank 5 and a regulating valve 6. The decomposed gas enters a water scrubber 2, methanol is removed through leaching of circulating liquid, and then the decomposed gas enters a decomposed gas buffer tank 5 from the water scrubber. The desalted water enters the desalted water tank 1 firstly, then a certain amount of desalted water is sent into the water washing tower 2 through the desalted water pump, and the residual eluent in the water washing tower is diluted. The bottom of the water washing tower 2 is provided with a liquid discharge pipe, the eluent in the water washing tower 2 can flow into the desalination water tank 1 through the liquid discharge pipe, the flow rate of the eluent flowing out of the water washing tower 2 is changed by adjusting the opening degree of the adjusting valve 6, and the liquid level balance of the water washing tower 2 is maintained. A certain amount of leacheate is pumped from the bottom of the water scrubber 2 by a circulating pump 4 and sprayed from the upper part of the water scrubber 2, and methanol in the decomposed gas is removed and then returned to the bottom of the water scrubber 2, so that a leaching circulating system is formed.
In the water scrubber 2, the skirt 201 functions to support the entire tower body and to fix the equipment position. The eluent flows back to the desalination water tank 1 through a water outlet 202 at the bottom of the water scrubber 2, a circulating liquid outlet 203 is positioned at the lowest part of the straight section of the water scrubber 2, and an inlet end of a circulating pump 4 is connected with the circulating liquid outlet to extract the eluent. The gas inlet 204 is an inlet for the decomposed gas to enter the water scrubber 2, and the liquid replenishing port 205 is connected to the desalted water pump 3 above the gas inlet 204, and feeds desalted water as replenishing liquid from the desalted water tank 1 to the water scrubber 2. A grill 206 is provided in the water scrubber 2 for supporting and fixing the position of the wire packing 211. The spray nozzle 207 sprays the rinse solution from the circulating solution inlet 208 uniformly, and the circulating solution inlet 208 is connected to the outlet end of the circulating pump 4. After the decomposed gas is sprayed and washed by the eluent, a large number of small particle mist drops are mixed in the middle, the mist entrainment can be removed by the filter element 209, and the gas-liquid separation degree of the decomposed gas is increased. The finally filtered and dehydrated decomposed gas enters the decomposed gas buffer tank 5 from the decomposed gas outlet 210 at the top of the water scrubber 2.
It is to be noted that all terms used for directional and positional indication in the present utility model, such as: the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "low", "tail", "head", "center", etc. are merely used to explain the relative positional relationship, connection, etc. between the components in a particular state, and are merely for convenience of description of the present utility model, and do not require that the present utility model must be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing is a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model and are intended to be comprehended within the scope of the present utility model.
Claims (5)
1. The utility model provides a water scrubber circulation system in methyl alcohol schizolysis hydrogen manufacturing process, includes desalination water pitcher (1), water scrubber (2), desalted water pump (3), decomposition gas buffer tank (5), its characterized in that: the circulating system also comprises a circulating pump (4) and a regulating valve (6);
the water washing tower (2) comprises a skirt (201), a water outlet (202), a circulating liquid outlet (203), a decomposing gas inlet (204), a liquid supplementing inlet (205), a spray nozzle (207), a circulating liquid inlet (208) and a decomposing gas outlet (210);
the water washing device comprises a water washing tower (2), a skirt (201), a water outlet (202), a circulating liquid outlet (203) and a circulating pump (4), wherein the skirt (201) is arranged at the bottom of the water washing tower (2), the water washing tower (2) is fixed on the skirt (201) and keeps the position unchanged, the water outlet (202) is arranged at the bottom of the water washing tower (2), the water outlet (202) is connected with a desalting water tank (1) through a pipeline, and the circulating liquid outlet (203) is arranged at the bottommost end of a straight barrel section of the water washing tower (2) and is connected with an inlet end pipeline of the circulating pump (4); the decomposition gas inlet (204) and the fluid replacement inlet (205) are sequentially arranged above the circulating fluid outlet (203), the fluid replacement inlet (205) is connected with the outlet end of the desalted water pump (3), and the inlet end of the desalted water pump (3) is connected with the pipeline of the desalted water tank (1); the circulating liquid inlet (208) is arranged at the position of the spray nozzle (207) above the straight barrel section of the water scrubber (2), one end of the circulating liquid inlet (208) is connected with the outlet end pipeline of the circulating pump (4), and the other end of the circulating liquid inlet is connected with the spray nozzle (207); the decomposing gas outlet (210) is arranged at the top of the water scrubber (2), and the decomposing gas outlet (210) is connected with the decomposing gas buffer tank (5) through a pipeline;
the regulating valve (6) is arranged between the water washing tower (2) and the connecting pipeline of the desalination water tank (1).
2. A water scrubber circulation system in a process for producing hydrogen from methanol cracking as in claim 1 wherein: and a grid (206) is transversely arranged in the space of the water washing tower (2) above the fluid infusion inlet (205) and below the spray nozzle (207), and a silk screen filler (211) is arranged on the grid (206).
3. A water scrubber circulation system in a process for producing hydrogen from methanol cracking as in claim 1 wherein: the top end of the water washing tower (2) is provided with a filter element (209).
4. A water scrubber circulation system in a process for producing hydrogen from methanol cracking as in claim 3 wherein: the filter element (209) is fixed on a seat block through a bolt, and the seat block is welded on an upper sealing head of the water washing tower (2).
5. A water scrubber circulation system in a process for producing hydrogen from methanol cracking as in claim 1 wherein: the water washing tower (2) is provided with a liquid level meter which is interlocked with the regulating valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320919192.0U CN220012148U (en) | 2023-04-21 | 2023-04-21 | Water scrubber circulating system in methanol pyrolysis hydrogen production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320919192.0U CN220012148U (en) | 2023-04-21 | 2023-04-21 | Water scrubber circulating system in methanol pyrolysis hydrogen production process |
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| CN220012148U true CN220012148U (en) | 2023-11-14 |
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| CN202320919192.0U Active CN220012148U (en) | 2023-04-21 | 2023-04-21 | Water scrubber circulating system in methanol pyrolysis hydrogen production process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425114A (en) * | 2023-04-21 | 2023-07-14 | 中船(邯郸)派瑞氢能科技有限公司 | Water washing tower circulating system and method in methanol pyrolysis hydrogen production process |
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2023
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425114A (en) * | 2023-04-21 | 2023-07-14 | 中船(邯郸)派瑞氢能科技有限公司 | Water washing tower circulating system and method in methanol pyrolysis hydrogen production process |
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