CN218468809U - Liquid ammonia gasification system - Google Patents
Liquid ammonia gasification system Download PDFInfo
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- CN218468809U CN218468809U CN202222951713.9U CN202222951713U CN218468809U CN 218468809 U CN218468809 U CN 218468809U CN 202222951713 U CN202222951713 U CN 202222951713U CN 218468809 U CN218468809 U CN 218468809U
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Abstract
The utility model discloses a liquid ammonia gasification system, which comprises a liquid storage tank, a first gasification cavity and an air heat source pump, wherein the first gasification cavity is connected with the liquid storage tank through a first pipeline and is suitable for being communicated with a power generation system; the air source heat pump is connected with the first gasification cavity and used for heating the first gasification cavity. The air source heat pump is an energy-saving device which utilizes high-level energy to enable heat to flow from low-level heat source air to a high-level heat source, and can convert low-level heat energy (such as heat contained in the air) which cannot be directly utilized into high-level heat energy which can be utilized, so that part of high-level energy (such as coal, gas, oil, electric energy and the like) is saved; adopt air source heat pump to heat first gasification cavity, compare in adopting the heating of electrical heating rod, only need less electric energy just can produce higher heat, only need less electric energy promptly can satisfy the required heat of liquid ammonia gasification to the cost of liquid ammonia gasification has been reduced, and the utilization ratio of the energy has been improved.
Description
Technical Field
The utility model relates to a thermal power equipment technical field, concretely relates to liquid ammonia gasification system.
Background
For coal-fired units, there are no two more ways to reduce or eliminate carbon dioxide: one is to capture carbon dioxide at the tail of a power generation system, also called as CCUS, but although the technology is developed for many years, the capture cost is far beyond the range which can be borne by a thermal power generating unit, and the application of the technology is seriously influenced; the other is that the inlet end of the power generation system partially or completely combusts carbon-free fuels, such as biomass, hydrogen, ammonia and the like, but the biomass is regional and seasonal, has higher cost and is not suitable for a coal-fired unit with high requirement on stable supply; the difficulty of hydrogen liquefaction is high, and the liquid hydrogen is difficult to store and transport; the ammonia gas has the advantages of small liquefaction pressure, safety, low transportation cost and the like, so that the emission of carbon dioxide is reduced by adopting an ammonia-coal co-combustion mode in a coal-fired unit, namely, liquid ammonia is gasified and then introduced into the coal-fired unit, and the ammonia gas and the coal are co-combusted.
The utility model provides a current dual-purpose liquid ammonia vaporizer of hot water circulation and electrical heating, including the vaporizer casing, the electrical heating pump, and the liquid ammonia pipeline, hot water inlet and hot water outlet have been seted up on the vaporizer casing, make hot water circulate in the vaporizer casing through hot water inlet and hot water outlet, the heating part of electrical heating stick extends to inside the casing, the vaporizer casing is worn out to partial liquid ammonia pipeline after the heliciform coils in the vaporizer casing, it generates heat to make it generate heat for the electrical heating stick circular telegram, the hot water of vaporizer casing is heated to the uniform temperature by the electrical heating pump, when the liquid ammonia pipeline that liquid ammonia spirals through this heliciform, hot water makes the liquid ammonia gasification of this part.
However, the above-mentioned dual-purpose liquid ammonia vaporizer of hot water circulation and electric heating makes hot water heating to the uniform temperature through the electric heating rod, and the liquid ammonia pipeline is soaked in this hot water, and the hot water makes the liquid ammonia gasification in the liquid ammonia pipeline, because the liquid ammonia gasification needs to absorb a large amount of heats, consequently needs to use the electric heating rod of great power to make the gasified cost of liquid ammonia higher, and extravagant energy.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem that make hot water heating to the uniform temperature through the electrical heating stick among the prior art, the liquid ammonia pipeline soaks in this hot water, and the hot water makes the liquid ammonia gasification in the liquid ammonia pipeline, because the liquid ammonia gasification needs to absorb a large amount of heats, consequently need use more powerful electrical heating stick to make the gasified cost of liquid ammonia higher, and the extravagant energy.
Therefore, the utility model provides a liquid ammonia gasification system, include:
a liquid storage tank;
the first gasification cavity is connected with the liquid storage tank through a first pipeline and is suitable for being communicated with a power generation system;
the air source heat pump is connected with the first gasification cavity and used for heating the first gasification cavity.
Optionally, in the liquid ammonia gasification system described above, the air-source heat pump includes:
an evaporator placed in the outside air;
one side of the condenser is communicated with the evaporator through a first air pipe; the other side of the condenser is communicated with the evaporator through a first liquid supply pipe;
a compressor disposed on the first gas pipe;
the compressor can drive the gas in the first gas pipe to flow towards the condenser, and the liquid medium in the condenser can be conveyed towards the evaporator through the first liquid supply pipe.
Optionally, in the above liquid ammonia vaporizing system, the air-source heat pump further includes:
the expansion valve is arranged on the first liquid supply pipe and used for controlling the flow of the medium in the first liquid supply pipe;
a fan that draws an airflow toward the evaporator.
Optionally, the above liquid ammonia gasification system is characterized by further comprising:
the first pipeline is provided with a first subsection pipe and a second subsection pipe, the first communication part is communicated with the first gasification cavity through the first subsection pipe, and the second communication part is communicated with the liquid storage tank through the second subsection pipe;
a second supply tube, the second supply tube inlet adapted to communicate with the power generation system, a portion of the second supply tube disposed around the second gasification cavity outer wall, and the second supply tube outlet adapted to communicate with a cooling system.
Optionally, the above liquid ammonia gasification system further includes:
a first detection member provided on the first sectioned pipe, the first detection member being adapted to detect a medium flow rate inside the first sectioned pipe;
the first switching piece is arranged on the first section pipe and is suitable for controlling the connection and disconnection of the first gasification cavity and the second gasification cavity.
Optionally, the above liquid ammonia gasification system further includes:
the second detection piece is arranged on the second sectional pipe and used for detecting the medium flow in the second sectional pipe;
and the second switching piece is arranged on the second sectional pipe and is suitable for controlling the connection and disconnection of the liquid storage tank and the second gasification cavity.
Optionally, the above liquid ammonia gasification system further includes:
the third detection piece is arranged on the second liquid supply pipe and used for detecting the medium flow in the second liquid supply pipe;
the third switch piece is arranged on the second liquid supply pipe and is suitable for controlling the power generation system and the second gasification cavity to be switched on and off;
the third detection part and the third switch part are both arranged between the second gasification cavity and the power generation system.
Optionally, the above liquid ammonia gasification system further includes:
the power generation system is suitable for being communicated with the flue gas purification treatment system through a smoke exhaust pipeline;
and one end of the second pipeline is communicated with the first gasification cavity, and the other end of the second pipeline extends into the smoke exhaust pipeline and is suitable for being communicated with the power generation system.
Optionally, the liquid ammonia gasification system further includes:
the fourth detection piece is arranged on the second pipeline and used for detecting the medium flow in the second pipeline;
a fourth switching element disposed on the second conduit, the fourth switching element adapted to control the make and break of the first gasification cavity and the power generation system.
Optionally, the above liquid ammonia gasification system further includes:
one end of the third pipeline is communicated with the liquid storage tank, and the other end of the third pipeline is communicated with a liquid ammonia source;
the fifth detection piece is arranged on the third pipeline and used for detecting the medium flow in the third pipeline;
and the fifth switch piece is arranged on the third pipeline and is suitable for controlling the on-off of the liquid ammonia supply source and the liquid storage tank.
The technical scheme provided by the utility model, following advantage has:
1. the utility model provides a liquid ammonia gasification system, including liquid storage pot, first gasification cavity and air heat source pump, the first gasification cavity is connected with the liquid storage pot through the first pipeline, and the first gasification cavity is suitable for being communicated with the power generation system; the air source heat pump is used for heating the first gasification cavity.
In the liquid ammonia gasification system with the structure, the air source heat pump is an energy-saving device which utilizes high-level energy to enable heat to flow from low-level heat source air to a high-level heat source, and can convert low-level heat energy (such as heat contained in the air) which cannot be directly utilized into high-level heat energy which can be utilized, so that part of high-level energy (such as coal, gas, oil, electric energy and the like) is saved; adopt air source heat pump to heat first gasification cavity, compare in adopting the heating of electrical heating rod, only need less electric energy just can produce higher heat, only need less electric energy promptly can satisfy the required heat of liquid ammonia gasification to the cost of liquid ammonia gasification has been reduced, and the utilization ratio of the energy has been improved.
2. In the liquid ammonia gasification system provided by the utility model, the inlet of the first liquid supply pipe is communicated with the power generation system, part of the second liquid supply pipe is wound on the outer wall of the second gasification cavity, and the outlet of the second liquid supply pipe is communicated with the cooling system; the waste water waste heat that utilizes power generation system to produce heats the second gasification cavity for liquid ammonia in the second gasification cavity fully gasifies, adopts gradation, different heat sources to gasify liquid ammonia, has improved the gasification rate and the gasification volume of liquid ammonia, and is applicable in the power generation system of various scales, because the waste heat of partly waste water has been absorbed to the second gasification cavity, consequently gets into the heat reduction of cooling system's waste water, has reduced cooling system's pressure promptly.
3. The utility model provides a liquid ammonia gasification system, the first gasification cavity is communicated with a power generation system through a second pipeline, the power generation system is communicated with a flue gas purification treatment system through a flue gas exhaust pipeline, and the other end of the second pipeline extends into the flue gas exhaust pipeline; the second pipeline is heated by using the waste heat of the flue gas, so that the ammonia gas in the second pipeline is preheated, the loss of heat in the flue gas is reduced, namely, the energy is saved, and after the preheated ammonia gas is doped with coal, the ignition point of mixed combustion of ammonia and coal is reduced, so that the ammonia and coal are combusted more fully, and the energy is further saved.
4. The utility model provides a liquid ammonia gasification system adopts many times, different heat sources to gasify liquid ammonia, has improved the gasification rate and the gasification volume of liquid ammonia, is applicable to the power generation system of various scales.
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 embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are 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 is a schematic view of a liquid ammonia gasification system provided by the present invention;
description of reference numerals:
1. a liquid storage tank;
2. a first gasification cavity; 21. a first pipe; 211. a first sectioned pipe; 2111. a first detecting member; 2112. a first switching member; 2113. a first delivery pump; 212. a second sectioned pipe; 2121. a second detecting member; 2122. a second switching member; 2123. a second delivery pump;
31. an evaporator; 32. a condenser; 33. a first air pipe; 34. a first liquid supply tube; 35. a compressor; 36. an expansion valve;
4. a second gasification cavity; 41. a second liquid supply tube; 411. a third detecting member; 412. a third switching element;
5. a second pipe; 51. a fourth detecting member; 52. a fourth switching element;
6. a smoke exhaust duct;
7. a third pipeline; 71. a fifth detecting member; 72. a fifth switching element;
81. a cooling system; 82. a flue gas purification treatment system;
9. provided is a power generation system.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a liquid ammonia gasification system, as shown in fig. 1, which includes a liquid storage tank 1, a first gasification cavity 2 and an air source heat pump, where the first gasification cavity 2 is connected to the liquid storage tank 1 through a first pipeline 21, and the first gasification cavity 2 is suitable for being communicated with a power generation system 9; the air source heat pump is used for heating the first gasification cavity 2.
In the liquid ammonia gasification system provided by this embodiment, the air source heat pump is an energy saving device that uses high-level energy to make heat flow from low-level heat source air to high-level heat source, and can convert low-level heat energy (such as heat contained in air) that cannot be directly utilized into high-level heat energy that can be utilized, thereby saving part of high-level energy (such as coal, gas, oil, electric energy, etc.); adopt air source heat pump to heat first gasification cavity 2, compare in adopting the heating of electrical heating rod, only need less electric energy just can produce higher heat, only need less electric energy promptly can satisfy the required heat of liquid ammonia gasification to the cost of liquid ammonia gasification has been reduced, and the utilization ratio of the energy has been improved.
As shown in fig. 1, in the liquid ammonia vaporizing system provided in this embodiment, the air-source heat pump includes an evaporator 31, a condenser 32, a compressor 35, an expansion valve 36, a first air pipe 33, a first liquid supply pipe 34 and a fan, the evaporator 31 is formed by splicing a plurality of pipe members, the evaporator 31 is made of metal, the evaporator 31 is placed in the outside air, the condenser 32 is a pipe member for converting gas or vapor into liquid, a partial condenser 32 is disposed in the first vaporizing cavity 2, another partial condenser 32 is disposed outside the first vaporizing cavity 2, the first vaporizing cavity 2 is a cylindrical tank, one end of the first air pipe 33 is communicated with the evaporator 31, the other end of the first air pipe 33 is communicated with the condenser 32, and the other end of the first air pipe 33 is communicated with a portion of the evaporator 31 outside the first vaporizing cavity 2, one end of the first liquid supply pipe 34 is communicated with a side of the evaporator 31 away from the first air pipe 33, the other end of the first liquid supply pipe 34 is communicated with a side of the condenser 32 away from the first air pipe 33, the other end of the first liquid supply pipe 34 is communicated with a portion of the evaporator 31 outside the first vaporizing cavity 2, the compressor 35 is disposed on the first air pipe 33, and the first air pipe 33, the first liquid supply pipe 34 is used for extracting the liquid medium into the condenser 32 and delivering the first vaporizing medium into the condenser 32; as an alternative embodiment, the liquid medium is an R290 refrigerant, the liquid medium may also be another refrigerant, the gas of the first gas pipe 33 is in a state where the R290 refrigerant is gasified, the expansion valve 36 is disposed on the first liquid supply pipe 34 and outside the first gasification cavity 2, and is used to control the flow rate of the R290 refrigerant in the first liquid supply pipe 34 and also to protect the circulation system of the air source heat pump, the fan is fixedly connected to the housing of the air source heat pump, the fan drives the airflow to flow toward the evaporator 31, so that new air flows through the evaporator 31, the fan rotates to drive the airflow to flow toward the evaporator 31, the evaporator 31 has the liquid R290 refrigerant therein, and the boiling point of the R290 refrigerant is-42.1 ℃.
As shown in fig. 1, in the liquid ammonia vaporizing system provided in this embodiment, the liquid storage tank 1 is a cylindrical tank, the first pipeline 21 is further provided with a second delivery pump 2123, the second delivery pump 2123 is a liquid ammonia delivery pump, and is configured to deliver the liquid ammonia in the liquid storage tank 1 to the first vaporizing cavity 2 through the first pipeline 21, because the condenser 32 radiates a large amount of heat into the first vaporizing cavity 2, when the liquid ammonia enters the first vaporizing cavity 2, the liquid ammonia absorbs the heat in the first vaporizing cavity 2 to vaporize, and the temperature of the first vaporizing cavity 2 is reduced, so that the heat dissipation efficiency of the condenser 32 is further improved.
The liquid ammonia gasification system provided by the embodiment has the working process as follows:
firstly, the expansion valve 36 and the fan are opened to enable the R290 refrigerant to start to be converted between liquid state and gaseous state, when the outside temperature is higher than the boiling point temperature of the R290 refrigerant, the liquid R290 refrigerant in the evaporator absorbs heat in the air and is gasified, as the fan continuously feeds new air, namely the liquid R290 refrigerant can continuously absorb heat in the air, the compressor 35 extracts the gas R290 refrigerant of the first air pipe 33 to generate negative pressure, the gas R290 refrigerant generated in the evaporator 31 enters the first air pipe 33 and is fed into the condenser 32 through the compressor 35, as the condenser 32 can rapidly conduct heat into the first gasification cavity 2, the gas R290 refrigerant is liquefied to release heat, as the compressor 35 continuously presses the gas R290 refrigerant into the condenser 32, the pressure in the condenser 32 is continuously increased until the liquid R290 refrigerant in the condenser 32 is extruded and fed into the first liquid ammonia supply pipe 34, the liquid R290 refrigerant enters the evaporator 31 through the first liquid ammonia supply pipe 34, thereby continuously performing conversion circulation between the liquid and the liquid R290 refrigerant between the liquid state and the gas state, namely, the liquid ammonia refrigerant in the first gasification cavity 2 can provide heat for the first gasification cavity 2, and the ammonia gas-liquid ammonia generating system 2 is conveyed into the first gasification cavity 2, and the first gasification system 21, and the ammonia generating set 2 is driven to generate electricity generating system, and when the ammonia gas-liquid ammonia generating system 2 is continuously fed into the first gasification system, and the ammonia generating set 2. The mixture of ammonia and coal can reduce the emission of greenhouse gases.
Example 2
This example provides a liquid ammonia gasification system, as shown in fig. 1, which is different from example 1 in that: the ammonia gas pump also comprises a second gasification cavity 4, a second liquid supply pipe 41, a first detection piece 2111, a first switch piece 2112, a second switch piece 2122, a second detection piece 2121, a third switch piece 412 and a third detection piece 411, wherein the second gasification cavity 4 is provided with a first communication part and a second communication part, the second gasification cavity 4 is also a cylindrical tank body, a first pipeline 21 is divided into a first subsection pipe 211 and a second subsection pipe 212, the first communication part and the second communication part are both openings on the second gasification cavity 4, one end of the first subsection pipe 211 is communicated with the first communication part, the other end of the first subsection pipe 211 is communicated with the first gasification cavity 2, one end of the second subsection pipe 212 is communicated with the second communication part, the other end of the second subsection pipe 212 is communicated with a liquid storage tank 1, the first detection piece 2111 is a flow meter, the first detection piece 2111 is arranged on the first subsection pipe 211 and is used for detecting the flow of a medium in the first subsection pipe 211, the ammonia gas piece 2112 is an electromagnetic valve, the ammonia gas pump is used for controlling the flow in the first gasification cavity 2112, and is arranged on the first subsection pipe 211 and is used for controlling the ammonia gas pump for conveying the first gasification cavity, and conveying the first gasification cavity to the first gasification cavity 211; the second segmented pipe 212 is provided with a second delivery pump 2123 for delivering the liquid ammonia in the liquid storage tank 1 to the second gasification cavity 4, the second detecting element 2121 is also a flow meter, the second detecting element 2121 is provided on the second segmented pipe 212 for detecting the flow rate of the medium in the second segmented pipe 212, and the medium is liquid ammonia; the second switch element 2122 is a solenoid valve, the second switch element 2122 is disposed on the second sectional tube 212, and the second switch element 2122 is adapted to control the connection and disconnection between the liquid storage tank 1 and the second gasification cavity 4. An inlet of the second liquid supply pipe 41 is communicated with the power generation system 9, a part of the second liquid supply pipe 41 is spirally wound on the outer wall of the second gasification cavity 4, an outlet of the second liquid supply pipe 41 is communicated with the cooling system 81, the cooling system 81 is used for cooling the waste heat of the waste water generated by the power generation system 9, the third detection piece 411 is arranged on the second liquid supply pipe 41 and used for detecting the medium flow in the second liquid supply pipe 41, the medium is the waste water generated by the power generation system 9, the third switch 412 is arranged on the second liquid supply pipe 41, the third switch 412 is used for controlling the on-off of the power generation system 9 and the second gasification cavity 4, the third switch 412 is an electromagnetic valve, and the third detection piece 411 is a flow meter.
The liquid ammonia gasification system provided by the embodiment has the working process as follows:
first, when the first switch 2112, the second switch 2122 and the third switch 412 are turned on, the wastewater generated by the power generation system 9 is sent to the cooling system 81 through the second liquid supply pipe 41, the cooling system 81 is used for cooling the wastewater generated by the power generation system 9, and when the wastewater generated by the power generation system 9 passes through the second liquid supply pipe 41 which is wound around, a part of the waste heat of the wastewater is transferred into the second gasification cavity 4, so that the temperature in the second gasification cavity 4 is raised, and at the same time, the second transfer pump 2113 is operated to transfer the liquid ammonia in the liquid storage tank 1 into the second gasification cavity 4 through the second sectional pipe 212, and the liquid ammonia in the second gasification cavity 4 is gasified due to the higher temperature of the second gasification cavity 4, and the rest of the operation is as described in embodiment 1.
In the liquid ammonia gasification system provided by the embodiment, the inlet of the first liquid supply pipe 34 is communicated with the power generation system 9, part of the second liquid supply pipe 41 is wound on the outer wall of the second gasification cavity 4, and the outlet of the second liquid supply pipe 41 is communicated with the cooling system 81; the waste water waste heat that utilizes power generation system 9 to produce heats second gasification cavity 4 for liquid ammonia in second gasification cavity 4 is further fully gasified, adopt the branch, different heat sources gasify liquid ammonia, improved the gasification rate and the gasification volume of liquid ammonia, applicable power generation system 9 in various scales, because second gasification cavity 4 has absorbed the waste heat of partly waste water, consequently the heat of the waste water that gets into cooling system 81 reduces, has reduced cooling system 81's pressure promptly.
Example 3
This example provides a liquid ammonia gasification system, as shown in fig. 1, which is different from example 2 in that: the device also comprises a second pipeline 5, a fourth detection piece 51, a fourth switch piece 52, a third pipeline 7, a fifth detection piece 71 and a fifth switch piece 72, wherein one end of the second pipeline 5 is communicated with the first gasification cavity 2, and the other end of the second pipeline 5 is suitable for being communicated with the power generation system 9; the power generation system 9 is communicated with the flue gas purification treatment system 82 through the smoke exhaust pipeline 6, and the flue gas purification system is used for treating flue gas exhausted by the power generation system 9; one end of the second pipeline 5 is communicated with the first gasification cavity 2, the other end of the second pipeline 5 extends into the smoke exhaust pipeline 6, the other end of the second pipeline 5 is communicated with the power generation system 9, namely, the smoke exhaust pipeline 6 is sleeved outside part of the second pipeline 5, when ammonia in the first gasification cavity 2 passes through the second pipeline 5, because part of the second pipeline 5 is positioned in the smoke exhaust pipeline 6, smoke in the smoke exhaust pipeline 6 has higher temperature, the temperature in the smoke exhaust pipeline 6 is increased, the temperature of part of the second pipeline 5 is increased, and then the ammonia in the part of the second pipeline 5 is preheated. The fourth detecting element 51 is a flow meter, the fourth detecting element 51 is arranged on the second pipeline 5 and is used for detecting the medium flow in the second pipeline 5, and the medium is ammonia gas; a fourth switch 52 is arranged on the second pipe 5, and the fourth switch 52 is used for controlling the connection and disconnection between the first gasification cavity 2 and the power generation system 9. One end of the third pipeline 7 is communicated with the liquid storage tank 1, the other end of the third pipeline 7 is communicated with a liquid ammonia supply, the liquid ammonia supply is a liquid ammonia station, the fifth detection piece 71 is arranged on the third pipeline 7 and used for detecting the flow of a medium in the third pipeline 7, and the medium is liquid ammonia; the fifth switch 72 is arranged on the third pipeline 7, the fifth switch 72 is used for controlling the on-off between the liquid ammonia source and the liquid storage tank 1, the fourth switch 52 and the fifth switch 72 are both solenoid valves, and the fifth detection element 71 is a flowmeter.
In the liquid ammonia gasification system provided by this embodiment, the first gasification cavity 2 is communicated with the power generation system 9 through the second pipeline 5, the power generation system 9 is communicated with the flue gas purification treatment system 82 through the flue gas discharge pipeline 6, and part of the second pipeline 5 is located in the flue gas discharge pipeline 6; and part of the second pipeline 5 is heated by using the waste heat of the flue gas, so that the ammonia gas in the part of the second pipeline 5 is preheated, the loss of heat in the flue gas is reduced, namely, the energy is saved, and after the preheated ammonia gas is doped with coal, the ignition point of mixed ammonia coal is reduced, so that the ammonia coal is combusted more fully, and the energy is further saved. Liquid ammonia is gasified by adopting different heat sources for many times, so that the gasification rate and gasification quantity of the liquid ammonia are improved, and the liquid ammonia gasification device is suitable for power generation systems 9 of various scales.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A liquid ammonia gasification system, comprising:
a liquid storage tank (1);
the first gasification cavity (2), the first gasification cavity (2) is connected with the liquid storage tank (1) through a first pipeline (21), and the first gasification cavity (2) is suitable for being communicated with a power generation system (9);
the air source heat pump is connected with the first gasification cavity (2) and is used for heating the first gasification cavity (2).
2. The system of claim 1, wherein the air source heat pump comprises:
an evaporator (31), the evaporator (31) being disposed in the ambient air;
a condenser (32), one side of the condenser (32) is communicated with the evaporator (31) through a first air pipe (33); and the other side of the condenser (32) is communicated with the evaporator (31) through a first liquid supply pipe (34);
a compressor (35), said compressor (35) being disposed on said first gas pipe (33);
the compressor (35) can drive the gas in the first gas pipe (33) to flow towards the condenser (32), and the liquid medium in the condenser (32) can be conveyed to the evaporator (31) through the first liquid supply pipe (34).
3. The system of claim 2, wherein the air source heat pump further comprises:
an expansion valve (36), the expansion valve (36) being arranged on the first liquid supply pipe (34) for controlling the flow of the medium in the first liquid supply pipe (34);
a fan that draws an airflow towards the evaporator (31).
4. The liquid ammonia gasification system of any one of claims 1-3, further comprising:
a second gasification cavity (4), wherein the second gasification cavity (4) is provided with a first communicating part and a second communicating part, the first pipeline (21) is provided with a first subsection pipe (211) and a second subsection pipe (212), the first communicating part is communicated with the first gasification cavity (2) through the first subsection pipe (211), and the second communicating part is communicated with the liquid storage tank (1) through the second subsection pipe (212);
a second liquid supply pipe (41), an inlet of the second liquid supply pipe (41) is suitable for being communicated with the power generation system (9), a part of the second liquid supply pipe (41) is wound on the outer wall of the second gasification cavity (4), and an outlet of the second liquid supply pipe (41) is suitable for being communicated with a cooling system (81).
5. The system of claim 4, further comprising:
a first detecting member (2111) provided on the first sectioned pipe (211), the first detecting member (2111) being adapted to detect a medium flow rate in the first sectioned pipe (211);
a first switching member (2112) provided on the first sectioned pipe (211), the first switching member (2112) being adapted to control the make-and-break of the first gasification cavity (2) and the second gasification cavity (4).
6. The liquid ammonia gasification system of claim 5, further comprising:
a second detecting member (2121) provided on the second divided pipe (212) for detecting a medium flow rate in the second divided pipe (212);
the second switch piece (2122) is arranged on the second section pipe (212), and the second switch piece (2122) is suitable for controlling the connection and disconnection of the liquid storage tank (1) and the second gasification cavity (4).
7. The liquid ammonia gasification system of claim 6, further comprising:
a third detecting member (411) provided on the second supply pipe (41) for detecting a medium flow rate in the second supply pipe (41);
a third switch (412) provided on the second liquid supply pipe (41), the third switch (412) being adapted to control the switching of the power generation system (9) to the second gasification cavity (4);
the third detection member (411) and the third switching member (412) are both disposed between the second gasification cavity (4) and the power generation system (9).
8. The system for gasifying liquid ammonia according to any one of claims 1 to 3 and 5 to 7, further comprising:
the power generation system (9) is suitable for being communicated with the flue gas purification treatment system (82) through a smoke exhaust pipeline (6); and one end of the second pipeline (5) is communicated with the first gasification cavity (2), and the other end of the second pipeline (5) is suitable for extending into the smoke exhaust pipeline and is suitable for being communicated with the power generation system.
9. The system of claim 8, further comprising:
a fourth detection member (51), the fourth detection member (51) being arranged on the second pipe (5) for detecting the medium flow in the second pipe (5);
a fourth switching element (52), said fourth switching element (52) being arranged on said second duct (5), said fourth switching element (52) being adapted to control the switching of said first gasification cavity (2) to said power generation system (9).
10. The liquid ammonia gasification system of claim 9, further comprising:
one end of the third pipeline (7) is communicated with the liquid storage tank (1), and the other end of the third pipeline (7) is communicated with a liquid ammonia source;
a fifth detection element (71), wherein the fifth detection element (71) is arranged on the third pipeline (7) and is used for detecting the medium flow in the third pipeline (7);
the fifth switch piece (72) is arranged on the third pipeline (7), and the fifth switch piece (72) is suitable for controlling the connection and disconnection between the liquid ammonia supply source and the liquid storage tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222951713.9U CN218468809U (en) | 2022-11-07 | 2022-11-07 | Liquid ammonia gasification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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