CN107588431B - superconducting liquid heating type gas process system - Google Patents
superconducting liquid heating type gas process system Download PDFInfo
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- CN107588431B CN107588431B CN201710797044.5A CN201710797044A CN107588431B CN 107588431 B CN107588431 B CN 107588431B CN 201710797044 A CN201710797044 A CN 201710797044A CN 107588431 B CN107588431 B CN 107588431B
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Abstract
The invention provides a superconducting fluid heating type gas process system, which comprises a fan, an electric control cabinet, a superconducting fluid heating circulating device and a gasifier, wherein the fan is arranged on the electric control cabinet; the blower is connected with the gasifier through a bubbling pipe, and a safety valve, an electromagnetic valve, a bubbling pipe pressure gauge and a blower outlet transfer valve are arranged on the bubbling pipe; the superconducting liquid heating and circulating device is provided with a thermometer, a liquid level meter, an electric heating superconducting liquid tank, a superconducting liquid adding port, an emptying valve, a water return pipe and a water outlet pipe; the gasifier is arranged on the base, and a remote thermometer, a pressure gauge, an internal thread ball valve for the pressure gauge, a long pipe for the pressure gauge and an air outlet are arranged at the top of the gasifier; a heat value meter is arranged at the air outlet; a column liquid level meter is arranged on the wall of the gasifier; the outer wall of the gasifier is provided with a heating sleeve, and the superconducting liquid heating and circulating device is connected with the heating sleeve through a water outlet pipe and a water return pipe.
Description
Technical Field
the invention relates to the field of industrial gas, in particular to a superconducting liquid heating type gas process system.
Technical Field
combustible gas is used in various fields in actual life, for example, cutting gas, power generation, chemical industry, automobiles and other fields, and the reason is that combustible gas can generate a large amount of heat during combustion, so that energy can be saved, and meanwhile, the advantages of low cost, less pollution, high safety and the like can be achieved. The fuel gases with different components have different heat values and different application fields. For example, the gas for industrial cutting requires a high standard of calorific value, and the common industrial cutting gases are three of propane gas, propylene gas, or acetylene gas.
a common gas generating apparatus gasifies a liquid fuel by heating, gradually generates a combustible gas as the liquid is gasified, and continuously increases the temperature to improve the gasification efficiency. If the temperature is too high, the liquid fuel can be deteriorated, and impurities such as polymers can be generated, thereby affecting the quality of the fuel gas.
The invention provides a superconducting liquid heating type fuel gas process system which can generate fuel gas with stable heat value at about 35 ℃.
Disclosure of Invention
The invention provides a superconducting fluid heating type gas process system, which comprises a fan, an electric control cabinet, a superconducting fluid heating circulating device and a gasifier, wherein the fan is arranged on the electric control cabinet;
The blower is connected with the gasifier through a bubbling pipe, and a safety valve, an electromagnetic valve, a bubbling pipe pressure gauge and a blower outlet transfer valve are arranged on the bubbling pipe;
The superconducting liquid heating and circulating device is provided with a thermometer, a liquid level meter, an electric heating superconducting liquid tank, a superconducting liquid adding port, an emptying valve, a water return pipe and a water outlet pipe; superconducting liquid is filled in the electric heating superconducting liquid tank, and the superconducting liquid comprises the following raw materials in percentage by mass: 0.5-5% of diglycolamine, 0.01-1% of sodium polyphosphate, 0.3-0.7% of benzotriazole derivative, 0.1-1.0% of sodium nitrite, 1-20% of modified diglycolamine and the balance of water;
the gasifier is arranged on the base, and a remote thermometer, a pressure gauge, an internal thread ball valve for the pressure gauge, a long pipe for the pressure gauge and an air outlet are arranged at the top of the gasifier; a heat value meter is arranged at the air outlet;
A column liquid level meter is arranged on the wall of the gasifier; the outer wall of the gasifier is provided with a heating sleeve, and the superconducting liquid heating and circulating device is connected with the heating sleeve through a water outlet pipe and a water return pipe.
As an embodiment of the present invention, the superconducting liquid comprises, by mass: 0.5-2% of diglycolamine, 0.01-0.5% of sodium polyphosphate, 0.3-0.6% of benzotriazole derivative, 0.1-0.8% of sodium nitrite, 8-18% of modified diglycolamine and the balance of water.
As an embodiment of the present invention, the benzotriazole derivative is dimethyl benzotriazole.
In one embodiment of the present invention, the bubble tube is a seamless steel tube.
in one embodiment of the present invention, the blower is a water-cooled three-blade roots blower.
In one embodiment of the present invention, the modified diglycolamine is an acrylic monomer modified diglycolamine.
As an embodiment of the present invention, the preparation method of the modified diglycolamine comprises:
s01: phenyl methacrylate and diglycolamine in a molar ratio of (1-3): 1, adding 8 wt% of sodium ethoxide as a catalyst, and reacting at 100 ℃ for 120h to obtain a phenyl methacrylate modified diglycolamine crude product;
S02: adding a phenyl methacrylate modified diglycolamine crude product and an organic solvent into a flask, heating and dissolving under stirring to prepare a solution, wherein the concentration of the phenyl methacrylate modified diglycolamine crude product is 3 wt% -10 wt%, cooling to normal temperature, then extracting the solution from the prepared solution by using an injector, fixing the injector filled with the phenyl methacrylate modified diglycolamine crude product solution on a sample rack of electrostatic spinning equipment, connecting a power supply anode with an injector needle, connecting a power supply cathode with a collector, starting a sample injection pump, turning on a high-voltage power supply to carry out electrostatic spinning, turning off the high-voltage power supply, the sample injection pump and the collector after the electrostatic spinning is finished, stopping spinning, and collecting a phenyl methacrylate modified diglycolamine pure product;
s03: reacting the pure product of phenyl methacrylate modified diglycolamine with polyamine to obtain the modified diglycolamine.
As an embodiment of the present invention, the liquid level meter is a side-mounted magnetic flip-plate liquid level meter.
in an embodiment of the present invention, a gas-liquid separation device is further provided inside the gasifier.
As an embodiment of the present invention, a pipe wall of the water outlet pipe has a two-layer structure.
Drawings
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1: schematic connection of the Fan and gasifier described in example 1
FIG. 2: schematic of the gasifier described in example 1
FIG. 3: schematic of the gas processing System described in example 1
FIG. 4: schematic of the gasifier described in example 2
FIG. 5: schematic of the gas processing System described in example 3
FIG. 6: schematic of the gasifier described in example 4
FIG. 7: schematic of the gasifier described in example 5
FIG. 8: schematic diagram of outlet pipe wall with two layers of tooth-shaped structures capable of meshing with each other in embodiment 1
description of the symbols: the device comprises a fan 1, an electric control cabinet 2, a superconducting liquid heating circulating device 3, a gasifier 4, a bubbling pipe 5, a safety valve 6, an electromagnetic valve 7, a bubbling pipe pressure gauge 8, a fan outlet transfer valve 9, a thermometer 10, a liquid level meter 11, an electric heating superconducting liquid tank 12, a superconducting liquid adding port 13, an emptying valve 14, an emptying valve 15, a water return pipe 16, a water outlet pipe 17, a base 18, a remote thermometer 19, a pressure gauge 20, an internal thread ball valve 21 for the pressure gauge, a long pipe 22 for the pressure gauge, an air outlet 23, a heat value meter 24, a column liquid level meter 25, a heating sleeve 26, a water outlet 27, a water return port 28, an electric heating wire 31 and a gas-liquid separator 32.
Detailed Description
the disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.
Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.
"Polymer" means a polymeric compound prepared by polymerizing monomers of the same or different types. The generic term "polymer" embraces the terms "homopolymer", "copolymer", "terpolymer" and "interpolymer".
"interpolymer" means a polymer prepared by polymerizing at least two different monomers. The generic term "interpolymer" includes the term "copolymer" (which is generally used to refer to polymers prepared from two different monomers) and the term "terpolymer" (which is generally used to refer to polymers prepared from three different monomers). It also includes polymers made by polymerizing four or more monomers. "blend" means a polymer formed by two or more polymers being mixed together by physical or chemical means.
The invention provides a superconducting fluid heating type gas process system, which comprises a fan, an electric control cabinet, a superconducting fluid heating circulating device and a gasifier, wherein the fan is arranged on the electric control cabinet;
The blower is connected with the gasifier through a bubbling pipe, and a safety valve, an electromagnetic valve, a bubbling pipe pressure gauge and a blower outlet transfer valve are arranged on the bubbling pipe;
the superconducting liquid heating and circulating device is provided with a thermometer, a liquid level meter, an electric heating superconducting liquid tank, a superconducting liquid adding port, an emptying valve, a water return pipe and a water outlet pipe; superconducting liquid is filled in the electric heating superconducting liquid tank, and the superconducting liquid comprises the following raw materials in percentage by mass: 0.5-5% of diglycolamine, 0.01-1% of sodium polyphosphate, 0.3-0.7% of benzotriazole derivative, 0.1-1.0% of sodium nitrite, 1-20% of modified diglycolamine and the balance of water;
The gasifier is arranged on the base, and a remote thermometer, a pressure gauge, an internal thread ball valve for the pressure gauge, a long pipe for the pressure gauge and an air outlet are arranged at the top of the gasifier; a heat value meter is arranged at the air outlet;
a column liquid level meter is arranged on the wall of the gasifier; the outer wall of the gasifier is provided with a heating sleeve, and the superconducting liquid heating and circulating device is connected with the heating sleeve through a water outlet pipe and a water return pipe.
as an embodiment of the present invention, the superconducting liquid comprises, by mass: 0.5-2% of diglycolamine, 0.01-0.5% of sodium polyphosphate, 0.3-0.6% of benzotriazole derivative, 0.1-0.8% of sodium nitrite, 8-18% of modified diglycolamine and the balance of water.
As an embodiment of the present invention, the benzotriazole derivative is dimethyl benzotriazole.
In one embodiment of the present invention, the bubble tube is a seamless steel tube.
in one embodiment of the present invention, the blower is a water-cooled three-blade roots blower.
In one embodiment of the present invention, the modified diglycolamine is an acrylic monomer modified diglycolamine.
as an embodiment of the present invention, the preparation method of the modified diglycolamine comprises:
S01: phenyl methacrylate and diglycolamine in a molar ratio of (1-3): 1, adding 8 wt% of sodium ethoxide as a catalyst, and reacting at 100 ℃ for 120h to obtain a phenyl methacrylate modified diglycolamine crude product;
S02: adding a phenyl methacrylate modified diglycolamine crude product and an organic solvent into a flask, heating and dissolving under stirring to prepare a solution, wherein the concentration of the phenyl methacrylate modified diglycolamine crude product is 3 wt% -10 wt%, cooling to normal temperature, then extracting the solution from the prepared solution by using an injector, fixing the injector filled with the phenyl methacrylate modified diglycolamine crude product solution on a sample rack of electrostatic spinning equipment, connecting a power supply anode with an injector needle, connecting a power supply cathode with a collector, starting a sample injection pump, turning on a high-voltage power supply to carry out electrostatic spinning, turning off the high-voltage power supply, the sample injection pump and the collector after the electrostatic spinning is finished, stopping spinning, and collecting a phenyl methacrylate modified diglycolamine pure product;
S03: reacting the pure product of phenyl methacrylate modified diglycolamine with polyamine to obtain the modified diglycolamine.
as an embodiment of the present invention, the liquid level meter is a side-mounted magnetic flip-plate liquid level meter.
In an embodiment of the present invention, a gas-liquid separation device is further provided inside the gasifier.
As an embodiment of the present invention, a pipe wall of the water outlet pipe has a two-layer structure.
Superconducting liquid:
As an embodiment of the present invention, the superconducting liquid comprises, by mass: 1.2% of diglycolamine, 0.3% of sodium polyphosphate, 0.5% of benzotriazole derivative, 0.3% of sodium nitrite, 15% of modified diglycolamine and the balance of water.
diglycolamine: C4H11NO2, CAS number 929-06-6, available from Shanghai Demao chemical Co., Ltd.
sodium polyphosphate: the sodium polyphosphate is prepared from sodium dipolyphosphate and sodium tripolyphosphate according to the weight ratio of 1: 2, or a mixture thereof.
The sodium dimeric phosphate and the sodium tripolyphosphate are purchased from Shanghai Limited company of the national drug group.
benzotriazole derivatives: the benzotriazole derivative is dimethyl benzotriazole, specifically 5, 7-dimethyl-1H-benzotriazole, has a CAS number of 49636-63-7, and is purchased from Arch Bioscience Company.
sodium nitrite: the chemical formula is NaNO2, the CAS number is 7632-00-0, and the product is purchased from Shanghai Limited company of the national drug group.
Modified diglycolamine: the preparation method of the modified diglycolamine comprises the following steps:
S01: phenyl methacrylate and diglycolamine in a molar ratio of (1-3): 1, adding 8 wt% of sodium ethoxide as a catalyst, and reacting at 100 ℃ for 120h to obtain a phenyl methacrylate modified diglycolamine crude product;
S02: adding a phenyl methacrylate modified diglycolamine crude product and an organic solvent into a flask, heating and dissolving under stirring to prepare a solution, wherein the concentration of the phenyl methacrylate modified diglycolamine crude product is 3 wt% -10 wt%, cooling to normal temperature, then extracting the solution from the prepared solution by using an injector, fixing the injector filled with the phenyl methacrylate modified diglycolamine crude product solution on a sample rack of electrostatic spinning equipment, connecting a power supply anode with an injector needle, connecting a power supply cathode with a collector, starting a sample injection pump, turning on a high-voltage power supply to carry out electrostatic spinning, turning off the high-voltage power supply, the sample injection pump and the collector after the electrostatic spinning is finished, stopping spinning, and collecting a phenyl methacrylate modified diglycolamine pure product;
s03: reacting the pure product of phenyl methacrylate modified diglycolamine with polyamine to obtain the modified diglycolamine.
The preparation method of the superconducting liquid comprises the following steps:
a. Weighing diglycolamine, sodium nitrite, modified diglycolamine and water according to the component proportion of the superconducting liquid, stirring and mixing at 20-25 ℃, and controlling the stirring speed to be more than 500 revolutions per minute;
b. Standing and precipitating the stirred materials in the step a, and then stirring again until the materials are uniformly mixed for later use;
c. B, sequentially adding the rest components into the material obtained in the step b in no sequence, adding another component after each component is added, stirring and uniformly mixing until the last component is added, and uniformly mixing to obtain superconducting liquid;
d. and c, hermetically storing the superconducting fluid obtained in the step c in a refrigeration house.
The pipe wall of the water outlet pipe is of a two-layer structure, and the first layer and the second layer are sequentially arranged from inside to outside. The preparation raw material of the second layer is PERT II type polyethylene; the preparation raw materials of the first layer are modified low-density polyethylene and PERT II type polyethylene.
the PERT II type polyethylene is purchased from Dow, and the preparation method of the modified low-density polyethylene comprises the following steps:
1. The low-density polyethylene is prepared again: adding low-density polyethylene and toluene into a flask, heating and dissolving under stirring to prepare a solution, wherein the concentration of the low-density polyethylene is 3-10 wt%, cooling to normal temperature, extracting the solution from the prepared solution by using an injector, fixing the injector filled with the low-density polyethylene solution on a sample rack of electrostatic spinning equipment, connecting a power supply anode with an injector needle, connecting a power supply cathode with a collector, starting a sample injection pump and turning on a high-voltage power supply to carry out electrostatic spinning, turning off the high-voltage power supply, the sample injection pump and the collector after the electrostatic spinning is finished, stopping spinning, and collecting a low-density polyethylene crude product;
2. Uniformly stirring the low-density polyethylene crude product prepared in the step 1, 2-dimethyl-3-butenoic acid and azobisisobutyronitrile, and heating to react to obtain modified low-density polyethylene;
3. and (3) reacting the low-density polyethylene modified in the step (2) with ethylenediamine to prepare the modified low-density polyethylene.
wherein, in the step 1,
The low density polyethylene was purchased from Shanghai plastic Rice information technology Co., Ltd., under the designation 2102TX 00.
The spinning of the electrospinning was carried out for 1 day.
The working voltage of the electrostatic spinning is 26 KV.
The spinneret-to-collector distance for the electrospinning was 25 cm.
The push speed of the sample feeding pump is 0.8 ml/h.
The spinneret for electrostatic spinning is a concentric circular double-nozzle, so that the low-density polyethylene prepared by electrostatic spinning is in a hollow tube structure.
in the step 2, the step of the method is carried out,
The adding amount of the 2, 2-dimethyl-3-butenoic acid is 5-20 wt% of the mass of the low-density polyethylene.
The addition amount of the azodiisobutyronitrile is 2-5 wt% of the mass of the low-density polyethylene.
the stirring reaction time is 6 hours, the reaction temperature is 100 ℃, and the reaction time is 2-3 hours.
in the step 3, the step of the method is that,
the reaction time is 8 hours, the temperature of the dehydration section is 140-160 ℃, the temperature of the cyclization dehydration section is 180-210 ℃, and the reaction weight ratio of the modified low-density polyethylene to the ethylenediamine is 0.3: 1.
the heating sleeve is provided with a water outlet and a water return port, the water outlet is connected with a water outlet pipe, and the water return port is connected with a water return pipe.
The first layer and the second layer are provided with tooth-shaped structures which are meshed with each other on the surfaces which are contacted with each other, namely the outer side surface of the first layer and the inner side surface of the second layer are provided with tooth-shaped structures which can be meshed with each other, and the thickness ratio of the first layer to the second layer is 1: 1.5.
the outer wall of the gas generator is provided with a side-mounted magnetic turning plate liquid level meter for monitoring the liquid level of liquid fuel in the gas generator, 4-20 mA current can be fed back by the liquid level meter when the liquid level is different, and the liquid level position can be known according to the current value. The upper and lower levels are the upper and lower level limits we have set. When the liquid level is lower than the lower limit of the liquid level, the control cabinet can control the amount of gas transmitted by the fan, open the electromagnetic valve on the feeding pipeline and increase the content of liquid fuel entering the gas generator; when the liquid level is higher than the upper limit of the liquid level, the control cabinet closes the electromagnetic valve on the feeding pipeline to stop adding the liquid fuel.
Another aspect of the invention provides a process of the superconducting fluid heating type gas process system, which comprises the following steps: the gasifier is provided with a feed inlet, and liquid fuel enters the gasifier through the feed inlet; the fan drives compressed air into the fuel of the gasifier to promote the gasification of the fuel, and the superconducting liquid heating circulating device circularly flows superconducting liquid in a heating sleeve of the gasifier to heat the fuel in the gasifier; the liquid fuel is gasified to generate fuel gas, the fuel gas is treated by the gas-liquid separation device and then is transmitted out from the gas outlet of the gasifier, and the heat value meter measures the heat value of the mixed gas. And after the heat value of the mixed gas meets a set value, transmitting the mixed gas for standby. When the heat value is lower than the lower limit of the set value, the gas content provided by the first fan/the second fan is increased, and the gasification speed of the liquefied fuel is increased; and when the heat value is higher than the upper limit of the set value, stopping the work of the first fan/the second fan, and slowing down the gasification speed of the liquefied fuel.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1: the embodiment provides a superconducting liquid heating type gas process system, which comprises a fan 1, an electric control cabinet 2, a superconducting liquid heating circulating device 3 and a gasifier 4;
the fan 1 is connected with the gasifier 4 through a bubbling pipe 5, and a safety valve 6, an electromagnetic valve 7, a bubbling pipe pressure gauge 8 and a fan outlet transfer valve 9 are arranged on the bubbling pipe;
The superconducting liquid heating and circulating device 3 is provided with a thermometer 10, a liquid level meter 11, an electric heating superconducting liquid tank 12, a superconducting liquid adding port 13, an exhaust valve 14, an exhaust valve 15, a water return pipe 16 and a water outlet pipe 17; the electric heating superconducting liquid tank 12 is filled with superconducting liquid, and the superconducting liquid comprises the following raw materials in percentage by mass: 1.2% of diglycolamine, 0.3% of sodium polyphosphate, 0.5% of benzotriazole derivative, 0.3% of sodium nitrite, 15% of modified diglycolamine and the balance of water;
the gasifier 4 is arranged on a base 18, and a remote thermometer 19, a pressure gauge 20, an internal thread ball valve 21 for the pressure gauge, a long pipe 22 for the pressure gauge and an air outlet 23 are arranged at the top of the gasifier 4; the air outlet 23 is connected with the fan 1, and a heat value meter 24 is arranged at the air outlet 23;
a column liquid level meter 25 is arranged on the wall of the gasifier 4; the outer wall of the gasifier 4 is provided with a heating jacket 26, and the superconducting fluid heating and circulating device 3 is connected with the heating jacket 26 through a water outlet pipe 17 and a water return pipe 16; the heating sleeve is provided with a water outlet 27 and a water return port 28, the water outlet 27 is connected with the water outlet pipe 17, and the water return port 28 is connected with the water return pipe 16.
the benzotriazole derivative is dimethyl benzotriazole.
The bubbling pipe is a seamless steel pipe.
The fan is a water-cooling three-blade Roots fan.
the preparation method of the modified diglycolamine comprises the following steps:
S01: phenyl methacrylate and diglycolamine in a molar ratio of 1: 1, adding 8 wt% of sodium ethoxide as a catalyst, and reacting at 100 ℃ for 120h to obtain a phenyl methacrylate modified diglycolamine crude product;
s02: adding a phenyl methacrylate modified diglycolamine crude product and an organic solvent into a flask, heating and dissolving under stirring to prepare a solution, wherein the concentration of the phenyl methacrylate modified diglycolamine crude product is 7 wt%, cooling to normal temperature, extracting the solution from the prepared solution by using an injector, fixing the injector filled with the phenyl methacrylate modified diglycolamine crude product solution on a sample rack of electrostatic spinning equipment, connecting a power supply anode with an injector needle, connecting a power supply cathode with a collector, starting a sample injection pump, turning on a high-voltage power supply to carry out electrostatic spinning, turning off the high-voltage power supply, the sample injection pump and the collector after the electrostatic spinning is finished, stopping spinning, and collecting a phenyl methacrylate modified diglycolamine pure product;
s03: reacting the pure product of phenyl methacrylate modified diglycolamine with polyamine to obtain the modified diglycolamine.
As an embodiment of the present invention, the liquid level meter is a side-mounted magnetic flip-plate liquid level meter.
and a gas-liquid separation device is also arranged in the gasifier.
The pipe wall of the water outlet pipe is of a two-layer structure.
Diglycolamine: C4H11NO2, CAS number 929-06-6, available from Shanghai Demao chemical Co., Ltd.
sodium polyphosphate: the sodium polyphosphate is prepared from sodium dipolyphosphate and sodium tripolyphosphate according to the weight ratio of 1: 2, or a mixture thereof.
The sodium dimeric phosphate and the sodium tripolyphosphate are purchased from Shanghai Limited company of the national drug group.
benzotriazole derivatives: the benzotriazole derivative is dimethyl benzotriazole, specifically 5, 7-dimethyl-1H-benzotriazole, has a CAS number of 49636-63-7, and is purchased from Arch Bioscience Company.
sodium nitrite: the chemical formula is NaNO2, the CAS number is 7632-00-0, and the product is purchased from Shanghai Limited company of the national drug group.
The preparation method of the superconducting liquid comprises the following steps:
a. weighing diglycolamine, sodium nitrite, modified diglycolamine and water according to the component proportion of the superconducting liquid, stirring and mixing at 20-25 ℃, and controlling the stirring speed to be more than 500 revolutions per minute;
b. standing and precipitating the stirred materials in the step a, and then stirring again until the materials are uniformly mixed for later use;
c. B, sequentially adding the rest components into the material obtained in the step b in no sequence, adding another component after each component is added, stirring and uniformly mixing until the last component is added, and uniformly mixing to obtain superconducting liquid;
d. And c, hermetically storing the superconducting fluid obtained in the step c in a refrigeration house.
the pipe wall of the water outlet pipe is of a two-layer structure, and the first layer and the second layer are sequentially arranged from inside to outside. The preparation raw material of the second layer is PERT II type polyethylene; the preparation raw materials of the first layer are modified low-density polyethylene and PERT II type polyethylene.
The PERT II type polyethylene is purchased from Dow, and the preparation method of the modified low-density polyethylene comprises the following steps:
1. The low-density polyethylene is prepared again: adding low-density polyethylene and toluene into a flask, heating and dissolving under stirring to prepare a solution, wherein the concentration of the low-density polyethylene is 4 wt%, cooling to normal temperature, extracting the solution from the prepared solution by using an injector, fixing the injector filled with the low-density polyethylene solution on a sample rack of electrostatic spinning equipment, connecting a power supply anode with an injector needle, connecting a power supply cathode with a collector, starting a sample injection pump, turning on a high-voltage power supply to carry out electrostatic spinning, turning off the high-voltage power supply, the sample injection pump and the collector after the electrostatic spinning is finished, stopping spinning, and collecting a low-density polyethylene crude product;
2. uniformly stirring the low-density polyethylene crude product prepared in the step 1, 2-dimethyl-3-butenoic acid and azobisisobutyronitrile, and heating to react to obtain modified low-density polyethylene;
3. and (3) reacting the low-density polyethylene modified in the step (2) with ethylenediamine to prepare the modified low-density polyethylene.
Wherein, in the step 1,
The low density polyethylene was purchased from Shanghai plastic Rice information technology Co., Ltd., under the designation 2102TX 00.
The spinning of the electrospinning was carried out for 1 day.
The working voltage of the electrostatic spinning is 26 KV.
the spinneret-to-collector distance for the electrospinning was 25 cm.
The push speed of the sample feeding pump is 0.8 ml/h.
The spinneret for electrostatic spinning is a concentric circular double-nozzle, so that the low-density polyethylene prepared by electrostatic spinning is in a hollow tube structure.
in the step 2, the step of the method is carried out,
the adding amount of the 2, 2-dimethyl-3-butenoic acid is 6 wt% of the mass of the low-density polyethylene.
The addition amount of the azobisisobutyronitrile is 3 wt% of the mass of the low-density polyethylene.
The stirring reaction time is 6 hours, the reaction temperature is 100 ℃, and the reaction time is 2 hours.
in the step 3, the step of the method is that,
The reaction time is 8 hours, the temperature of a dehydration section is 140 ℃, the temperature of a cyclization dehydration section is 180 ℃, and the reaction weight ratio of the modified low-density polyethylene to the ethylene diamine is 0.3: 1.
The first layer and the second layer are provided with tooth-shaped structures which are meshed with each other on the surfaces which are contacted with each other, namely the outer side surface of the first layer and the inner side surface of the second layer are provided with tooth-shaped structures which can be meshed with each other, and the thickness ratio of the first layer to the second layer is 1: 1.5.
Another aspect of this embodiment provides a process of the superconducting fluid heating type gas process system: the gasifier is provided with a feed inlet, and liquid fuel enters the gasifier through the feed inlet; the fan drives compressed air into the fuel of the gasifier to promote the gasification of the fuel, and the superconducting liquid heating circulating device circularly flows superconducting liquid in a heating sleeve of the gasifier to heat the fuel in the gasifier; the liquid fuel is gasified to generate fuel gas, the fuel gas is treated by the gas-liquid separation device and then is transmitted out from the gas outlet of the gasifier, and the heat value meter measures the heat value of the mixed gas. And after the heat value of the mixed gas meets a set value, transmitting the mixed gas for standby. When the heat value is lower than the lower limit of the set value, the gas content provided by the first fan/the second fan is increased, and the gasification speed of the liquefied fuel is increased; and when the heat value is higher than the upper limit of the set value, stopping the work of the first fan/the second fan, and slowing down the gasification speed of the liquefied fuel.
Example 2: the difference from the embodiment 1 is that the heating of the gasifier is electric heating, namely, an electric heating wire is arranged inside a heating jacket of the gasifier to heat the liquid fuel in the gasifier; there is no superconducting liquid heating circulation device.
example 3: the difference from the embodiment 1 is that the gas outlet at the top of the gasifier is not connected with the fan, i.e. the gas generated from the gas outlet is pure fuel gas.
Example 4: the difference from embodiment 1 is that the inside of the gasifier is not provided with a gas-liquid separator.
Example 5: the difference from the embodiment 1 is that the superconducting fluid heated gas process system does not comprise a fan.
Example 6: the difference from example 1 is that the superconducting fluid is prepared from a raw material which does not contain modified diglycolamine.
Example 7: the difference from the embodiment 1 is that the superconducting liquid is prepared from raw materials which do not contain benzotriazole derivatives.
Example 8: the difference from the embodiment 1 is that the benzotriazole derivative in the superconducting liquid preparation raw material is 5-methylbenzotriazole.
Example 9: the difference from the embodiment 1 is that the sodium polyphosphate in the raw material for preparing the superconducting liquid is pure sodium dimeric phosphate.
Example 10: the difference from example 1 is that the preparation method of the modified diglycolamine comprises the following steps:
s01: methyl methacrylate and diglycolamine in a molar ratio of 2: 1, adding 8 wt% of sodium ethoxide as a catalyst, and reacting at 100 ℃ for 120h to obtain a methyl methacrylate modified diglycolamine crude product;
S02: adding a methyl methacrylate modified diglycolamine crude product and an organic solvent into a flask, heating and dissolving under stirring to prepare a solution, wherein the concentration of the methyl methacrylate modified diglycolamine crude product is 7 wt%, cooling to normal temperature, extracting the solution from the prepared solution by using an injector, fixing the injector filled with the methyl methacrylate modified diglycolamine crude product solution on a sample rack of electrostatic spinning equipment, connecting a power supply anode with an injector needle, connecting a power supply cathode with a collector, starting a sample injection pump, turning on a high-voltage power supply to carry out electrostatic spinning, turning off the high-voltage power supply, the sample injection pump and the collector after the electrostatic spinning is finished, stopping spinning, and collecting a methyl methacrylate modified diglycolamine pure product;
S03: and reacting the methyl methacrylate modified diglycolamine pure product with polyamine to obtain the modified diglycolamine.
Example 11: the difference from the embodiment 1 is that the pipe wall of the water outlet pipe is of a single-layer structure, and all the preparation raw materials are PERT II type polyethylene and unmodified low-density polyethylene.
Example 12: the difference from example 1 is that the surfaces of the first and second layers that are in contact with each other are not provided with interlocking tooth structures.
And (3) testing:
the following tests were carried out in examples 1 and 6 to 10:
1. heating test: 500ml of the superconducting fluids of examples 1 and 6 to 10 were placed in a 500ml glass beaker, and a heating test was carried out simultaneously with the same 900W electric furnace to test the time for heating to 70 ℃.
2. The superconducting fluids of examples 1 and 6 to 10 were used, and the thermal conductivity thereof was measured at 30 ℃.
3. Brass, carbon steel and cast iron were subjected to corrosion performance tests in the superconducting fluids of examples 1 and 6 to 10.
A level: the surface is smooth, has no spots and rust;
B stage: the surface is not smooth, has spots and is not rusted;
C level: the surface was not smooth, speckled, rusted.
II,
4. After heating the superconducting fluid of example 1 to 80 ℃, the superconducting fluid was placed in a sealed container prepared from the outlet pipes of examples 1 and 11 to 12 and a sealed container prepared from carbon steel for 24 hours, respectively, and the temperature after 24 hours was measured.
table 2:
The following tests were carried out for examples 1 to 5:
Testing the calorific value of the fuel-gasified gas conveyed from the gas outlet pipeline and the stability of the calorific value:
the above calorific value is given in Kcal. The stability test means that the heat value of the gas coming out of the gas outlet pipeline is measured after the superconducting liquid heating type gas process system starts to work for 30 minutes. The first data to be tested after the start of the operation for 30 minutes was "heat value at 0 second", the second data to be tested after the start of the operation for 30 minutes and 30 seconds was "heat value at 30 seconds", and so on.
The foregoing examples are illustrative only, and serve to explain some of the features of the present disclosure. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. And that advances in science and technology will result in possible equivalents or sub-substitutes not currently contemplated for reasons of inaccuracy in language representation, and such changes should also be construed where possible to be covered by the appended claims.
Claims (6)
1. a superconducting liquid heating type gas process system is characterized by comprising a fan, an electric control cabinet, a superconducting liquid heating circulating device and a gasifier;
The blower is connected with the gasifier through a bubbling pipe, and a safety valve, an electromagnetic valve, a bubbling pipe pressure gauge and a blower outlet transfer valve are arranged on the bubbling pipe;
the superconducting liquid heating and circulating device is provided with a thermometer, a liquid level meter, an electric heating superconducting liquid tank, a superconducting liquid adding port, an emptying valve, a water return pipe and a water outlet pipe;
Superconducting liquid is filled in the electric heating superconducting liquid tank;
the gasifier is arranged on the base, and a remote thermometer, a pressure gauge, an internal thread ball valve for the pressure gauge, a long pipe for the pressure gauge and an air outlet are arranged at the top of the gasifier;
A heat value meter is arranged at the air outlet;
a column liquid level meter is arranged on the wall of the gasifier;
The outer wall of the gasifier is provided with a heating sleeve, and the superconducting liquid heating circulating device is connected with the heating sleeve through a water outlet pipe and a water return pipe;
the superconducting liquid comprises the following raw materials in percentage by mass: 0.5-2% of diglycolamine, 0.01-0.5% of sodium polyphosphate, 0.3-0.6% of benzotriazole derivative, 0.1-0.8% of sodium nitrite, 8-18% of modified diglycolamine and the balance of water;
the benzotriazole derivative is dimethyl benzotriazole;
The sodium polyphosphate is composed of sodium dipolyphosphate and sodium tripolyphosphate according to a weight ratio of 1: 2;
the modified diglycolamine is acrylic acid monomer modified diglycolamine;
The pipe wall of the water outlet pipe is of a two-layer structure and sequentially comprises a first layer and a second layer from inside to outside, the preparation raw material of the second layer is polyethylene of PERT II type, and the preparation raw material of the first layer is modified low-density polyethylene and polyethylene of PERT II type;
the first layer and the second layer are provided with tooth-shaped structures meshed with each other on the surfaces contacted with each other, and the thickness ratio of the first layer to the second layer is 1: 1.5.
2. The superconducting fluid heated gas process system of claim 1, wherein the bubbler tube is a seamless steel tube.
3. The superconducting fluid heated gas process system of claim 1, wherein the fan is a water-cooled three-lobed roots fan.
4. The superconducting liquid heating type gas process system of claim 1, wherein the preparation method of the modified diglycolamine comprises the following steps:
S01: phenyl methacrylate and diglycolamine in a molar ratio of (1-3): 1, adding 8 wt% of sodium ethoxide as a catalyst, and reacting at 100 ℃ for 120h to obtain a phenyl methacrylate modified diglycolamine crude product;
S02: adding a phenyl methacrylate modified diglycolamine crude product and an organic solvent into a flask, heating and dissolving under stirring to prepare a solution, wherein the concentration of the phenyl methacrylate modified diglycolamine crude product is 3 wt% -10 wt%, cooling to normal temperature, then extracting the solution from the prepared solution by using an injector, fixing the injector filled with the phenyl methacrylate modified diglycolamine crude product solution on a sample rack of electrostatic spinning equipment, connecting a power supply anode with an injector needle, connecting a power supply cathode with a collector, starting a sample injection pump, turning on a high-voltage power supply to carry out electrostatic spinning, turning off the high-voltage power supply, the sample injection pump and the collector after the electrostatic spinning is finished, stopping spinning, and collecting a phenyl methacrylate modified diglycolamine pure product;
S03: reacting the pure product of phenyl methacrylate modified diglycolamine with polyamine to obtain the modified diglycolamine.
5. The superconducting fluid heated gas process system of claim 1, wherein the level gauge is a side mounted magnetic flip-board level gauge.
6. The superconducting liquid heated gas process system according to claim 1, wherein a gas-liquid separation device is further provided inside the gasifier.
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| CN2246151Y (en) * | 1996-01-23 | 1997-01-29 | 杜献军 | Gas preparing and feeding pot |
| CN1286287A (en) * | 2000-09-21 | 2001-03-07 | 深圳市裕金龙实业有限公司 | Thermal conducting agent for non-forced heat exchange |
| CN2535679Y (en) * | 2001-05-08 | 2003-02-12 | 杨祥森 | Liquid-mmedium lifting auto-control mixed gas device made from ligt hydrocarbon oil |
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