CN220647859U - LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy - Google Patents
LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy Download PDFInfo
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- CN220647859U CN220647859U CN202322377276.9U CN202322377276U CN220647859U CN 220647859 U CN220647859 U CN 220647859U CN 202322377276 U CN202322377276 U CN 202322377276U CN 220647859 U CN220647859 U CN 220647859U
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- 238000002309 gasification Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 239000000446 fuel Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 238000002485 combustion reaction Methods 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000002737 fuel gas Substances 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 7
- 239000003595 mist Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 239000003949 liquefied natural gas Substances 0.000 description 81
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 36
- 239000003345 natural gas Substances 0.000 description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to an LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and hot energy, which comprises an LNG storage tank, a heat exchanger, an LNG buffer tank, a first booster pump, a second booster pump and an SCV unit; the LNG storage tank is connected with the unit to be cooled through the heat exchanger; the second output port of the LNG storage tank is connected with the input end of the LNG buffer tank, the output end of the LNG buffer tank is connected with the input end of the first booster pump, and the output end of the first booster pump is connected with the process fluid input end of the SCV unit; the process fluid output end of the SCV unit is connected with a pipe network to be supplied with air and the fuel input end of the SCV unit; the SCV unit is provided with a circulating output end and a circulating input end; the input end of the second booster pump is connected with the circulating output end, and the output end is connected with the heat supply input end of the unit to be heated; the circulation input end of the SCV unit is connected with the heat supply output end of the unit to be heated. The utility model can comprehensively utilize the cold energy of the LNG storage tank and the heat energy of the SCV unit, thereby achieving the purposes of energy conservation and emission reduction.
Description
Technical Field
The utility model relates to an LNG peak shaving gasification system, in particular to an LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and hot energy.
Background
Liquefied natural gas (Liquefied Natural Gas, LNG for short), whose main component is methane, is recognized as the cleanest fossil energy source on earth. Colorless, odorless, nontoxic and noncorrosive, the volume of which is about 1/625 of the volume of the same amount of gaseous natural gas, and the mass of the liquefied natural gas is only about 45% of the same volume of water; the manufacturing process is to purify the gaseous natural gas produced by the gas field and then liquefy the gaseous natural gas at a series of ultralow temperatures. After burning, the liquefied natural gas has very little pollution to air and emits large heat, so the liquefied natural gas is an advanced energy source. Liquefied natural gas is liquid obtained by compressing and cooling natural gas to a temperature below the boiling point (-161.5 ℃) of natural gas, and is usually stored in a low-temperature storage tank at-161.5 ℃ and about 0.1MPa, transported by a special ship or an oil tank truck and regasified when in use.
In the existing liquefied natural gas storage process, natural gasification can occur, and the natural gas naturally gasified in the part is usually subjected to emptying treatment so as to prevent storage safety accidents caused by overhigh pressure in the storage tank. And when the liquefied natural gas is used, the liquefied natural gas can be used after being heated and gasified. However, in the process of emptying treatment and heating gasification, a large amount of cold energy and heat energy are lost, so that resource waste is caused, and energy conservation and emission reduction are not facilitated.
Disclosure of Invention
The utility model aims to solve the technical problems that a large amount of cold energy and heat energy are lost in the process of emptying treatment and heating gasification of the existing liquefied natural gas, so that resource waste is caused, and energy conservation and emission reduction are not facilitated, and provides an LNG peak regulation gasification system capable of realizing comprehensive utilization of the cold energy.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
an LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and hot energy is characterized in that:
the system comprises an LNG storage tank, a heat exchanger, an LNG buffer tank, a first booster pump, a second booster pump and an SCV unit;
the input port and the first output port of the LNG storage tank are respectively and correspondingly connected with the refrigerant output end and the refrigerant input end of the heat exchanger, and the medium output end and the medium input end of the heat exchanger are respectively and correspondingly connected with the cold supply input end and the cold supply output end of the unit to be cooled to form a cold energy circulation loop for realizing the utilization of cold energy in the LNG storage tank;
the second output port of the LNG storage tank is connected with the input end of the LNG buffer tank, the output end of the LNG buffer tank is connected with the input end of the first booster pump, and the output end of the first booster pump is connected with the process fluid input end of the SCV unit; the SCV unit is used for gasifying LNG, and the output end of the process fluid is connected with a pipe network to be supplied with air and the fuel input end of the SCV unit;
the SCV unit is provided with a circulating output end and a circulating input end; the input end of the second booster pump is connected with the circulating output end, and the output end is connected with the heat supply input end of the unit to be heated; the circulating input end of the SCV unit is connected with the heat supply output end of the unit to be heated to form a heat energy circulating loop, and the heat energy circulating loop is used for realizing the utilization of heat energy in the SCV unit.
Further, the SCV unit includes a storage chamber, a coil, a burner, and a gas lance;
the storage chamber is internally provided with water quality required by heating LNG, and the upper end of the storage chamber is provided with an air outlet;
the coil pipe is arranged in the storage chamber, two ends of the coil pipe are respectively used as a process fluid output end and a process fluid input end of the SCV unit, a fuel gas input end arranged at the upper end of the burner is used as a fuel input end of the SCV unit, and two ends of the coil pipe are respectively connected with the output end of the first booster pump, a pipe network to be supplied with gas and the fuel gas input end of the burner;
the air ejector is arranged below the coil pipe, one end of the air ejector is communicated with the lower end of the burner, and a plurality of air ejector holes are formed in the upper side of the air ejector and are used for ejecting high-temperature flue gas generated by combustion in the burner to heat water quality in the storage chamber, so that LNG in the coil pipe is gasified through the heated water quality.
Further, the SCV unit further comprises a blower, a cooling pump and a water injection pump;
the output end of the blower is connected with a combustion-supporting gas input port of the burner and is used for conveying combustion-supporting gas into the burner;
the input end of the cooling pump is communicated with the position, close to the bottom, of the side wall of the storage chamber, and the output end of the cooling pump penetrates through the side wall of the storage chamber and extends to the surface of the burner, so that the part, outside the water quality in the storage chamber, of the burner is cooled;
the input end of the water injection pump is communicated with the middle part of the side wall of the storage chamber, and the other end of the water injection pump is communicated with the upper end of the burner and is used for spraying water mist into the burner to reduce No in high-temperature flue gas generated by combustion x The content is as follows.
Further, the SCV unit further comprises a controller, a temperature sensor, a PH value detector and a storage tank;
the control end of the controller is respectively and electrically connected with the first booster pump, the second booster pump, the blower, the cooling pump, the water injection pump and the storage tank, and the input end is respectively and electrically connected with the temperature sensor and the PH value detector;
the temperature sensor and the PH value detector are respectively arranged in the storage chamber and respectively positioned in the water quality for detecting the temperature and the PH value of the water quality in real time;
the storage tank is internally stored with alkaline substances and is used for adding the alkaline substances into the water quality under the control of the controller when the PH value detector detects that the PH value of the water quality is lower than a preset threshold value, so that the PH value of the water quality is always in a preset range.
Further, a third output end of the LNG storage tank is connected with an LNG receiving pump;
the LNG receiving pump is used for transferring LNG in the LNG storage tank to an external LNG storage unit or transferring LNG in the external LNG storage unit to the LNG storage tank.
Further, a flare burner is connected to the process fluid output of the SCV unit.
Further, a vent is formed in the LNG storage tank.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model is connected with the first output port of the LNG storage tank through the heat exchanger, thereby utilizing the cold energy in the natural gas gasified naturally in the LNG storage tank and providing cold energy for the unit to be cooled; when the LNG in the LNG storage tank is required to be used, when the LNG is gasified through the SCV unit, the heat energy used in the LNG gasification process of the SCV unit can be utilized through the second booster pump, so that the comprehensive utilization of cold heat energy in the LNG peak shaving gasification system is realized, the purposes of energy conservation and emission reduction are achieved, and great economic benefits are achieved.
2. The SCV unit generates high-temperature flue gas through the combustion chamber and directly sprays the high-temperature flue gas into water quality in the storage chamber through the air ejector, and the heat loss is lower and the heating efficiency is higher because the flue gas is directly sprayed into the water quality.
3. The utility model can provide water quality required by cooling for the part of the burner which is not in the water quality through the cooling pump, thereby avoiding the fault of the burner caused by local overheating of the burner; and water mist is sprayed into the combustor through the water injection pump, so that No in the flue gas can be reduced x The content of the catalyst is reduced, and the emission of harmful gases is reduced.
4. According to the utility model, the PH value of the water quality in the storage chamber can be detected in real time through the PH value detector, and alkaline substances are automatically added through the storage box when the PH value is lower than a preset value, so that the reduction of heat efficiency caused by the too low PH value of the water quality is prevented, and the corrosion speed of a pipeline is increased.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
In the figure: 1-LNG storage tank, 2-heat exchanger, 3-LNG buffer tank, 4-first booster pump, 5-second booster pump, 6-SCV unit, 61-reservoir, 62-coil pipe, 63-burner, 64-jet pipe, 65-blower, 66-cooling pump, 67-water injection pump, 68-reservoir, 69-temperature sensor, 610-PH value detector; the system comprises a 7-unit to be cooled, an 8-fuel input end, a 9-circulation output end, a 10-circulation input end, an 11-unit to be heated, a 12-LNG receiving pump, a 13-flare burner, a 14-vent and a 15-LNG storage unit.
Detailed Description
In order to make the objects, advantages and features of the present utility model more clear, the LNG peak shaving gasification system capable of realizing the comprehensive utilization of cold and heat energy provided by the present utility model is described in further detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present utility model will become more apparent from the following detailed description. It should be noted that: the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model; second, the structures shown in the drawings are often part of the actual structure.
The utility model provides an LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and hot energy, which comprises an LNG storage tank 1, a heat exchanger 2, an LNG buffer tank 3, a first booster pump 4, a second booster pump 5 and an SCV unit 6 as shown in figure 1.
The temperature of the LNG tank 1, that is, the LNG tank, is typically-162 ℃, during the storage process, the LNG in the LNG tank 1 will spontaneously gasify, so as to generate gasified natural gas with a lower temperature (-161.5 ℃), and the part of gasified natural gas will be limited in storage space of the LNG tank 1 due to the volume increase, and it is necessary to empty the LNG tank 1, and an air vent 14 is provided on the LNG tank 1, so that the gasified natural gas that cannot be stored is emptied. However, the vented gasified natural gas contains huge cold energy, and simply venting the vented gasified natural gas can cause waste of the cold energy contained in the part of the gasified natural gas, so that huge economic benefits can be generated if the part of the cold energy is utilized. Therefore, in this embodiment, in order to utilize the part of cold energy, the input port and the first output port on the LNG storage tank 1 are respectively connected with the refrigerant output end and the refrigerant input end of the heat exchanger 2, and the medium output end and the medium input end of the heat exchanger 2 are respectively connected with the cold supply input end and the cold supply output end of the unit to be cooled 7, so as to form a cold energy circulation loop, so that the gasified natural gas at-161.5 ℃ exchanges heat through the heat exchanger 2, and the refrigerant of the unit to be cooled 7 is cooled, thereby realizing the utilization of cold energy in the LNG storage tank 1. Specifically, the unit 7 to be cooled may be an office building that needs cooling in summer, or may be another refrigerator or the like.
If the LNG in the LNG storage tank 1 needs to be used, the LNG needs to be heated first, the temperature of the LNG reaches 4-5 ℃ for gasification, and then the LNG is conveyed to a pipe network or a unit needing gas supply for use. In this embodiment, the second output port of the LNG tank 1 is connected to the input end of the LNG buffer tank 3, the output end of the LNG buffer tank 3 is connected to the input end of the first booster pump 4, and the output end of the first booster pump 4 is connected to the process fluid input end of the SCV unit 6; the process fluid output end of the SCV unit 6 is connected with a pipe network to be supplied with gas and is connected with the fuel input end 8 of the SCV unit; the SCV unit 6 is a submerged combustion gasifier unit, and is mainly used for gas flow peak regulation, and is used in winter when the seawater gasifier cannot meet the air supply amount, or when the seawater gasifier is overhauled, maintained or failed, natural gas is used as fuel, LNG is gasified in a combustion heating mode, and fuel gas is combusted in the combustor 63, so that water quality is heated, and LNG is heated and gasified. The SCV unit 6 is provided with a circulating output end 9 and a circulating input end 10; the input end of the second booster pump 5 is connected with the circulating output end 9, and the output end is connected with the heat supply input end of the unit to be heated 11; the circulation input end 10 of the SCV unit 6 is connected with the heat supply output end of the unit 11 to be heated to form a heat energy circulation loop, thereby realizing the utilization of heat energy in the SCV unit 6. A flare burner 13 is connected to the process fluid output of the SCV unit 6 for facilitating observation of whether the process fluid output has normal discharge of gasified natural gas.
Specifically, the SCV unit 6 includes a storage chamber 61, a coil 62, a burner 63, an air lance 64, a blower 65, a cooling pump 66, a water injection pump 67, a controller, a temperature sensor 69, a pH detector 610, and a storage tank 68. The storage chamber 61 stores water quality required for heating LNG, and an air outlet is provided at an upper end thereof; the water quality is generally industrial water, and a large amount of water is generated by combustion of fuel gas, so that the water in the storage chamber 61 gradually rises along with the progress of combustion, and even if a part of water is taken away in an evaporation form, the water level gradually rises due to the fact that the heating temperature of a water bath is low, and the steam amount taken away is small; in order to maintain the height of the water level in the storage chamber 61, an overflow weir is provided at one side of the storage chamber 61, so that when the water level exceeds a preset water level, the excessive water can be discharged through the overflow weir. The coil pipe 62 is arranged in the storage chamber 61, the coil pipe 62 is made of stainless steel, the corrosion resistance is high, and the coil pipe 62 can increase the stroke of LNG in water, so that the LNG can be heated to a preset temperature conveniently; two ends of the coil pipe 62 are respectively used as a process fluid output end and a process fluid input end of the SCV unit 6, and are connected with the output end of the first booster pump 4, a pipe network to be supplied with air and a fuel input end 8 of the coil pipe; that is, a fuel gas input provided at an upper end of the burner 63 is connected to one end of the coil 62 as a fuel input 8 of the SCV unit 6. The air ejector tube 64 is disposed below the coil pipe 62, one end of the air ejector tube is communicated with the lower end of the burner 63, and a plurality of air ejector holes are formed in the upper side of the air ejector tube for ejecting high-temperature flue gas generated by combustion in the burner 63 into water. Because of the special conditions of submerged combustion, the gas lance 64 is positioned below a certain level, requiring a gas supply system to require a certain pressure to deliver gas into the combustion chamber and a pressure to penetrate the water bath to continuously supply the combustion wind; at start-up, the blower 65 is used to exhaust the gas lance 64 of water and natural gas; in operation, blower 65 provides a primary combustion aid for combustionAir and secondary combustion air; the output end of the blower 65 is connected to the combustion gas inlet of the burner 63, and is used for feeding the combustion gas into the burner 63. Because the water bath is low, the combustion position of the burner 63 cannot be completely immersed (the combustion temperature can reach 1000 ℃), so that local high temperature in the burner 63 can be caused, a cooling water jacket is additionally arranged outside the combustion chamber to prevent the local high temperature from forming, the input end of the cooling pump 66 is communicated with the position, close to the bottom, of the side wall of the storage chamber 61, the output end penetrates through the side wall of the storage chamber 61 and extends to the surface of the burner 63 to be communicated with the cooling water jacket, and therefore the part, outside the water in the storage chamber 61, of the burner 63 is cooled. The input end of the water injection pump 67 is communicated with the middle part of the side wall of the storage chamber 61, and the other end is communicated with the upper end of the burner 63, and is used for spraying water mist into the burner 63 to reduce No in the smoke generated by combustion x Content of No x The content is controlled between 35ppm and 50ppm. The control end of the controller is respectively and electrically connected with the first booster pump 4, the second booster pump 5, the blower 65, the cooling pump 66 and the water injection pump 67, and the input end is respectively and electrically connected with the temperature sensor 69 and the PH value detector 610; the temperature sensor 69 and the PH detector 610 are respectively disposed in the storage chamber 61 and respectively located in the water for detecting the temperature and PH of the water in real time; since the combustion gas is rich in carbon dioxide and nitrogen oxides, the PH of the water in the storage chamber 61 is gradually lowered, the acidity is increased, the heat transfer is affected, and the corrosion of the pipeline is accelerated during the operation of the SCV unit 6, so that the alkaline substance is stored in the storage tank 68, and is used for adding the alkaline substance to the water when the PH detector 610 detects that the PH of the water is lower than a preset threshold value, so as to maintain the PH of the water within a preset range all the time. In this embodiment, naOH may be another commonly used alkaline substance, and the pH is maintained between 4 and 6 by neutralizing the acidic substance produced by adding NaOH to the storage chamber 61.
In a preferred embodiment of the present utility model, an LNG receiving pump 12 is connected to the third output of the LNG tank 1; the LNG receiving pump 12 is used to transfer LNG in the LNG storage tank 1 to the external LNG storage unit 15 or transfer LNG in the external LNG storage unit 15 to the LNG storage tank 1.
Claims (7)
1. LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy, and is characterized in that:
the system comprises an LNG storage tank (1), a heat exchanger (2), an LNG buffer tank (3), a first booster pump (4), a second booster pump (5) and an SCV unit (6);
the input port and the first output port of the LNG storage tank (1) are respectively and correspondingly connected with the refrigerant output end and the refrigerant input end of the heat exchanger (2), and the medium output end and the medium input end of the heat exchanger (2) are respectively and correspondingly connected with the cold supply input end and the cold supply output end of the unit to be cooled (7) to form a cold energy circulation loop for realizing the utilization of cold energy in the LNG storage tank (1);
the second output port of the LNG storage tank (1) is connected with the input end of the LNG buffer tank (3), the output end of the LNG buffer tank (3) is connected with the input end of the first booster pump (4), and the output end of the first booster pump (4) is connected with the process fluid input end of the SCV unit (6); the SCV unit (6) is used for gasifying LNG, and the output end of the process fluid is connected with a pipe network to be supplied with gas and is connected with the fuel input end (8) of the SCV unit;
the SCV unit (6) is provided with a circulating output end (9) and a circulating input end (10); the input end of the second booster pump (5) is connected with the circulating output end (9), the output end is connected with the heat supply input end of the unit (11) to be heated, the circulating input end (10) of the SCV unit (6) is connected with the heat supply output end of the unit (11) to be heated, and a heat energy circulating loop is formed and used for realizing the utilization of heat energy in the SCV unit (6).
2. The LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy according to claim 1, wherein the LNG peak shaving gasification system is characterized in that:
the SCV unit (6) comprises a storage chamber (61), a coil pipe (62), a combustor (63), an air jet pipe (64) and a blower (65);
the storage chamber (61) is internally provided with water quality required by heating LNG, and the upper side of the storage chamber is provided with an air outlet, a circulating output end (9) and a circulating input end (10);
the coil pipe (62) is arranged in the storage chamber (61), two ends of the coil pipe are respectively used as a process fluid output end and a process fluid input end of the SCV unit (6), a fuel gas input end arranged at the upper end of the burner (63) is used as a fuel input end (8) of the SCV unit (6), and two ends of the coil pipe (62) are respectively connected with the output end of the first booster pump (4), a pipe network to be supplied with gas and the fuel gas input end of the burner (63);
the air ejector tube (64) is arranged below the coil tube (62), one end of the air ejector tube is communicated with the lower end of the burner (63), and a plurality of air ejector holes are formed in the upper side of the air ejector tube and are used for ejecting high-temperature flue gas generated by combustion in the burner (63) to heat water quality in the storage chamber (61);
the output end of the blower (65) is connected with a combustion-supporting gas input port of the combustor (63) and is used for conveying combustion-supporting gas with preset pressure into the combustor (63).
3. The LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy according to claim 2, wherein the LNG peak shaving gasification system is characterized in that:
the SCV unit (6) also comprises a cooling pump (66) and a water injection pump (67);
the input end of the cooling pump (66) is communicated with the position, close to the bottom, of the side wall of the storage chamber (61), and the output end of the cooling pump penetrates through the side wall of the storage chamber (61) and extends to the surface of the burner (63) so as to cool the part, outside the water in the storage chamber (61), of the burner (63);
the input end of the water injection pump (67) is communicated with the middle part of the side wall of the storage chamber (61), and the other end is communicated with the upper end of the burner (63) and is used for spraying water mist into the burner (63) to reduce No in high-temperature flue gas generated by combustion x The content is as follows.
4. The LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy according to claim 3, wherein:
the SCV unit (6) also comprises a controller, a temperature sensor (69), a PH value detector (610) and a storage tank (68);
the control end of the controller is respectively and electrically connected with the first booster pump (4), the second booster pump (5), the blower (65), the cooling pump (66), the water injection pump (67) and the storage box (68), and the input end is respectively and electrically connected with the temperature sensor (69) and the PH value detector (610);
the temperature sensor (69) and the PH value detector (610) are respectively arranged in the storage chamber (61) and are respectively positioned in the water quality for detecting the temperature and the PH value of the water quality in real time;
the storage tank (68) stores alkaline substances therein, and the alkaline substances are added into the water quality under the control of the controller when the PH value detector (610) detects that the PH value of the water quality in the storage chamber (61) is lower than a preset threshold value.
5. The LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy according to any one of claims 1 to 4, wherein:
the third output end of the LNG storage tank (1) is connected with an LNG receiving pump (12);
the LNG receiving pump (12) is used for conveying LNG in the LNG storage tank (1) to an external LNG storage unit (15) or conveying LNG in the external LNG storage unit (15) to the LNG storage tank (1).
6. The LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy according to claim 5, wherein the LNG peak shaving gasification system is characterized in that:
the process fluid output end of the SCV unit (6) is connected with a torch burner (13).
7. The LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy according to claim 6, wherein the LNG peak shaving gasification system is characterized in that:
and a vent (14) is arranged on the LNG storage tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322377276.9U CN220647859U (en) | 2023-09-02 | 2023-09-02 | LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322377276.9U CN220647859U (en) | 2023-09-02 | 2023-09-02 | LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy |
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| Publication Number | Publication Date |
|---|---|
| CN220647859U true CN220647859U (en) | 2024-03-22 |
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| CN202322377276.9U Active CN220647859U (en) | 2023-09-02 | 2023-09-02 | LNG peak shaving gasification system capable of realizing comprehensive utilization of cold and heat energy |
Country Status (1)
| Country | Link |
|---|---|
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2023
- 2023-09-02 CN CN202322377276.9U patent/CN220647859U/en active Active
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