CN209456385U - A kind of heat-exchange device applied in liquefied natural gas preparation process - Google Patents
A kind of heat-exchange device applied in liquefied natural gas preparation process Download PDFInfo
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- CN209456385U CN209456385U CN201822246023.7U CN201822246023U CN209456385U CN 209456385 U CN209456385 U CN 209456385U CN 201822246023 U CN201822246023 U CN 201822246023U CN 209456385 U CN209456385 U CN 209456385U
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Abstract
The utility model belongs to chemical equipment technical field, disclose a kind of heat-exchange device applied in liquefied natural gas preparation process, including the exchange pipe and circulation pipe for heat exchange, the circulation pipe includes interconnected first circulation pipe and second circulation pipe, the first circulation pipe is set to the inside of exchange pipe, and the axis of first circulation pipe and the axis of exchange pipe are overlapped.The first circulation pipe is set to the inside of exchange pipe by the utility model, since exchange pipe is wrapped in first circulation pipe, so that heat exchange is more abundant, by changing the structure of heat-exchange device, realizes the raising of heat exchanger effectiveness.
Description
Technical field
The utility model belongs to chemical equipment technical field, and in particular to one kind is applied in liquefied natural gas preparation process
Heat-exchange device.
Background technique
Natural gas is the general designation for being present in the mixed gas in subsurface rock reservoir based on hydrocarbon, than weighing about 0.65,
It is lighter than air, there is colourless, tasteless, nontoxic characteristic.
Natural gas main component alkane, wherein methane accounts for the overwhelming majority, separately has a small amount of ethane, propane and butane, furthermore
Generally there are hydrogen sulfide, carbon dioxide, nitrogen and aqueous vapor and a small amount of carbon monoxide and micro rare gas, such as helium and argon.Naturally
Gas is before being sent to end user, to help leak detection, also adds smell to natural gas with mercaptan, thiophane etc..
Natural gas is not soluble in water, and density is 0.7174kg/Nm3 [2], and relative density (water) is about 0.45 (liquefaction) burning point
(DEG C) is 650, and explosion limit (V%) is 5-15.At standard conditions, methane exists to butane with gaseous state, more than pentane
For liquid.Methane is most short and most light hydrocarbon molecule.
Organic sulfur compound and hydrogen sulfide (H S) are common impurity, all necessary in the case where most of utilization natural gases
It removes in advance.The technical term of natural gas English more than sulfur-containing impurities describes as " sour (sour) ".
Every cube of combustion heat value of natural gas is 8000 kilocalories to 8500 kilocalories.Per kilogram liquefied gas combustion heat value is 11000
Kilocalorie.The specific gravity of gaseous liquefied gas is 2.5 kilograms/cubic metre.Every cube of liquefied gas combustion heat value is 25200 kilocalories.Every bottle of liquid
Change gas and weigh 14.5 kilograms, amounts to 159500 kilocalorie of combustion heat value, be equivalent to the combustion heat value of 20 cubic natural gas.Natural gas by
In its unique property and higher economic value, have become a kind of energy indispensable in modern society, usually
In the case of be to be stored using natural gas tank to it, but when due to tank body storage, internal pressure is easy shadow by temperature
It rings, causes the hidden peril of explosion of liquefied natural gas due to the factor of temperature in order to prevent, need to carry out the pressure of tank body real-time
Control.
Existing endothermic process during natural gas processing, and have exothermic process, how heat release, heat absorption to be combined,
It is to have problem to be solved at present to realize the efficient utilization of energy.
Currently, the processing of liquified natural gas tank is primarily present following problems:
1, existing exothermic process also has the process of heat absorption to natural gas during processing, and the heat of releasing can not be fine
Utilization, cause the waste of resource.
2, existing heat-exchange device is mostly panel radiator, which is suitable for heat dissipation, but is unfavorable for the benefit of heat
With.
Utility model content
The utility model aim is to provide a kind of heat-exchange device applied in liquefied natural gas preparation process, pass through
Be arranged heat-exchange device make processing in heat release and heat absorption formed a complementary process, be greatly saved can about, meanwhile, pass through
The improvement of heat exchanging apparatus structure, so that the efficiency of heat exchange is improved significantly.
In order to solve the above problems existing in the present technology, the technology employed by the present utility model is
A kind of heat-exchange device applied in liquefied natural gas preparation process including the exchange pipe for heat exchange and follows
Endless tube, the circulation pipe include interconnected first circulation pipe and second circulation pipe, and the first circulation pipe is set to exchange pipe
Inside, the axis of the axis of first circulation pipe and exchange pipe is overlapped.
Further, the first circulation pipe is set to the inside of exchange pipe, since exchange pipe is wrapped in first circulation pipe,
So that heat exchange is more abundant, by changing the structure of heat-exchange device, the raising of heat exchanger effectiveness is realized.
Further, the first circulation pipe passes through the inside that the support frame being equipped with is connected to exchange pipe, and described first follows
Endless tube is internally connected with multiple hollow disturbed flow pipes, and the both ends of the disturbed flow pipe are connected to the inner wall of first circulation pipe, flow-disturbing
The side wall of pipe is equipped with multiple flow-disturbing holes.
Further, the multiple spoilers that are internally connected with for exchanging pipe, the spoiler are set to exchange pipe and first
Between circulation pipe.
Further, by the way that spoiler is arranged, the inertia of the media flow in exchange pipe is reduced, makes to be formed disorderly in exchange pipe
Stream to guarantee that the medium exchanged in pipe can sufficiently carry out heat exchange, while being arranged disturbed flow pipe in first circulation pipe and disturbing
Discharge orifice upsets the media flow rule in first circulation pipe, extends medium residence time in first circulation pipe, to extend
The time of heat exchange improves the efficiency of heat exchange.
Further, Rose Box and pump box, the Rose Box are connected between the first circulation pipe and second circulation pipe
The both ends of first circulation pipe are connected to pump box.
Further, the inside of the pump box be equipped with liquid pump, the both ends of the liquid pump be respectively communicated with first circulation pipe and
Second circulation pipe.
Further, the both ends of the Rose Box have been respectively communicated with first circulation pipe and second circulation pipe, Rose Box it is interior
Portion is equipped with filter screen.
Further, the flowing of medium is passed through so that the medium in circulation pipe is adequately flowed by setting liquid pump
Heat exchange is carried out, the efficiency of heat exchange is improved.
Further, by the way that Rose Box is arranged, circulation fluid is filtered, by the filtered fluid to circulation fluid, ensure that
The cleaning of circulation fluid is crossed, to ensure that the mobility of circulation fluid, improves the efficiency of heat exchange.
It further, further include pressurized canister and purification pot.
Further, the exchange pipe is wound on the outside of purification pot in the shape of a spiral, and exchange pipe is connected to only by fixed frame
Change tank, the upper end for exchanging pipe is connected with feed pipe, and the lower end for exchanging pipe passes through the inside that the discharge nozzle being equipped with is connected to purification pot.
Further, the second circulation pipe is set to the inside of pressurized canister, and the both ends of second circulation pipe are respectively communicated in the
The both ends of one circulation pipe, and form the circuit of a closure.
Further, the pump box is connected to pressurized canister.
Further, the pressurized canister is to become liquid to gas pressurized, during gas becomes liquid, can be discharged big
The thermal energy of amount, meanwhile, liquefied natural gas needs liquid becoming gas in purification, this process needs to absorb a large amount of thermal energy,
The thermal energy discharged in pressure process is used to improve the thermal energy absorbed the utilization rate of energy, saving can be about in purification process.
Further, the feed pipe is connected with flow valve.
Further, the purification pot is internally connected with temperature inductor.
Further, flow valve and temperature inductor are electrically connected, liquefied natural gas is controlled by temperature inductor
Temperature, when temperature occurs abnormal, pass through since the media flow speed in circulation pipe is certain and adjust opening for flow valve
Resultant adjusts the intake of liquefied natural gas, and when the flow for being passed through liquefied natural gas increases, the temperature in purification pot reduces,
When the flow for being passed through liquefied natural gas reduces, the temperature in purification pot is increased.
Further, the inside of the purification pot is equipped with multiple packing layers, and the purification pot is equipped with gas outlet, the outlet
Mouth is set to the top of packing layer.
The utility model has the following beneficial effects:
(1) the utility model is by being arranged the improvement to heat-exchange device structure, so that heat exchange is more efficient, processing
Heat absorption and heat release form complementation in the process, improve the utilization rate to thermal energy.
(2) the utility model carries out heat exchange by setting tubular structure, and the pipe that two carry out heat exchange is carried out fitting
Connection reduces energy loss, so that the efficiency of heat exchange greatly improves.
(3) the utility model has upset the media flow paths in first circulation pipe by setting disturbed flow pipe and flow-disturbing hole,
So that flowing of the medium in first circulation pipe is slower and unordered, the efficiency of heat exchange is improved.
(4) the utility model has upset the media flow paths in exchange pipe, so that medium is being handed over by setting spoiler
Flowing in changing is slower and unordered, improves the efficiency of heat exchange.
(5) the utility model provides power by setting pump box for the flowing of medium, enables the stream of medium duration
It is dynamic, to efficiently carry out heat exchange.
(6) the logical setting Rose Box of the utility model is filtered the medium in using to ensure that the cleaning of medium,
Improve the mobility of medium.
(7) the utility model is that heat-exchange device is used in pressurized tank and purifying box, by heat release and heat absorption, so that thermal energy
It is fully utilized, improves the utilization rate of the energy.
Detailed description of the invention
Fig. 1 uses schematic diagram for the utility model；
Fig. 2 is the connection schematic diagram of the utility model；
Fig. 3 is the partial enlarged view of part A in Fig. 2.
In figure: 1- pressurized canister；2- purification pot；3- first circulation pipe；4- feed pipe；5- exchange pipe；6- Rose Box；7- flow-disturbing
Piece；8- disturbed flow pipe；9- flow-disturbing hole；10- support frame；11- temperature inductor；12- flow valve；13- discharge nozzle；The gas outlet 14-；
15- pump box；16- filter screen；17- liquid pump；18- packing layer；19- second circulation pipe；20- fixed frame.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further elaborated the utility model.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Embodiment 1:
As shown in Fig. 2, a kind of heat-exchange device applied in liquefied natural gas preparation process, including for heat exchange
It exchanges pipe 5 and circulation pipe, the circulation pipe includes interconnected first circulation pipe 3 and second circulation pipe 19, described first follows
Endless tube 3 is set to the inside of exchange pipe 5, and the axis of first circulation pipe 3 and the axis of exchange pipe 5 are overlapped.
The first circulation pipe 3 is set to the inside of exchange pipe 5, since exchange pipe 5 is wrapped in first circulation pipe 3, so that
Heat exchange is more abundant, by changing the structure of heat-exchange device, realizes the raising of heat exchanger effectiveness.
Embodiment 2:
As shown in Figure 1-3, a kind of heat-exchange device applied in liquefied natural gas preparation process, including it is used for heat exchange
Exchange pipe 5 and circulation pipe, the circulation pipe includes interconnected first circulation pipe 3 and second circulation pipe 19, described first
Circulation pipe 3 is set to the inside of exchange pipe 5, and the axis of first circulation pipe 3 and the axis of exchange pipe 5 are overlapped.
The first circulation pipe 3 is set to the inside of exchange pipe 5, since exchange pipe 5 is wrapped in first circulation pipe 3, so that
Heat exchange is more abundant, by changing the structure of heat-exchange device, realizes the raising of heat exchanger effectiveness.
The feed pipe 4 is connected with flow valve 12, and the purification pot 2 is internally connected with temperature inductor 11, by flow
Valve 12 and temperature inductor 11 are electrically connected, and the temperature of liquefied natural gas are controlled by temperature inductor 11, due to circulation pipe
Interior media flow speed is certain, therefore when temperature occurs abnormal, adjusts liquefaction by adjusting the folding amount of flow valve 12
The intake of natural gas, when the flow for being passed through liquefied natural gas increases, the temperature in purification pot 2 is reduced, when being passed through liquefaction day
When the flow of right gas reduces, the temperature in purification pot 2 is increased, and the inside of the purification pot 2 is equipped with multiple packing layers 18, described net
Change tank 2 and be equipped with gas outlet 14, the gas outlet 14 is set to the top of packing layer 18.
The first circulation pipe 3 passes through the inside that the support frame 10 being equipped with is connected to exchange pipe 5, the first circulation pipe 3
Be internally connected with multiple hollow disturbed flow pipes 8, the both ends of the disturbed flow pipe 8 are connected to the inner wall of first circulation pipe 3, disturbed flow pipe
8 side wall is equipped with multiple flow-disturbing holes 9, and exchange pipe 5 is internally connected with multiple spoilers 7, and the spoiler 7 is set to exchange pipe 5
Between first circulation pipe 3, by the way that spoiler 7 is arranged, the inertia of the media flow in exchange pipe 5 is reduced, makes to exchange shape in pipe 5
At sinuous flow, to guarantee that the medium exchanged in pipe 5 can sufficiently carry out heat exchange, while flow-disturbing is set in first circulation pipe 3
Pipe 8 and flow-disturbing hole 9, upset in first circulation pipe 3 media flow rule, extend medium stopped in first circulation pipe when
Between, to extend the time of heat exchange, improve the efficiency of heat exchange.
Rose Box 6 and pump box 15,6 He of Rose Box are connected between the first circulation pipe 3 and second circulation pipe 19
Pump box 15 is connected to the both ends of first circulation pipe 3, and the inside of pump box 15 is equipped with liquid pump 17, the both ends point of the liquid pump 17
It is not communicated with first circulation pipe 3 and second circulation pipe 19, the both ends of Rose Box 6 have been respectively communicated with first circulation pipe 3 and second and have followed
The inside of endless tube 19, Rose Box 6 is equipped with filter screen 16, by the way that liquid pump 17 is arranged, so that the medium in circulation pipe carries out adequately
Flowing carries out heat exchange by the flowing of medium, improves the efficiency of heat exchange, by the way that Rose Box 15 is arranged, to circulation fluid into
Row filtering, by the filtered fluid to circulation fluid, ensure that the cleaning of circulation fluid, to ensure that the mobility of circulation fluid, mentioned
The efficiency of high heat exchange.
The utility model is by being arranged the improvement to heat-exchange device structure, so that heat exchange is more efficient, it is processed
Heat absorption and heat release form complementation in journey, improve the utilization rate to thermal energy.
The utility model carries out heat exchange by setting tubular structure, and the pipe that two carry out heat exchange is carried out fitting company
It connects, reduces energy loss, so that the efficiency of heat exchange greatly improves.
The utility model has upset the media flow paths in first circulation pipe 3 by setting disturbed flow pipe 8 and flow-disturbing hole 9,
So that flowing of the medium in first circulation pipe 3 is slower and unordered, the efficiency of heat exchange is improved.
The utility model has upset the media flow paths in exchange pipe 5, so that medium is being handed over by setting spoiler 7
Flowing in changing is slower and unordered, improves the efficiency of heat exchange.
The utility model provides power by setting pump box 15 for the flowing of medium, enables the stream of medium duration
It is dynamic, to efficiently carry out heat exchange.
Embodiment 3:
As shown in Figure 1-3, a kind of heat-exchange device applied in liquefied natural gas preparation process, including it is used for heat exchange
Exchange pipe 5 and circulation pipe, the circulation pipe includes interconnected first circulation pipe 3 and second circulation pipe 19, described first
Circulation pipe 3 is set to the inside of exchange pipe 5, and the axis of first circulation pipe 3 and the axis of exchange pipe 5 are overlapped.
The first circulation pipe 3 is set to the inside of exchange pipe 5, since exchange pipe 5 is wrapped in first circulation pipe 3, so that
Heat exchange is more abundant, by changing the structure of heat-exchange device, realizes the raising of heat exchanger effectiveness.
The first circulation pipe 3 passes through the inside that the support frame 10 being equipped with is connected to exchange pipe 5, the first circulation pipe 3
Be internally connected with multiple hollow disturbed flow pipes 8, the both ends of the disturbed flow pipe 8 are connected to the inner wall of first circulation pipe 3, disturbed flow pipe
8 side wall is equipped with multiple flow-disturbing holes 9.
The exchange pipe 5 is internally connected with multiple spoilers 7, and the spoiler 7 is set to exchange pipe 5 and first circulation pipe
Between 3.
By the way that spoiler 7 is arranged, the inertia of the media flow in reduction exchange pipe 5 makes to form sinuous flow in exchange pipe 5, from
And guarantee that the medium in exchange pipe 5 can sufficiently carry out heat exchange, while disturbed flow pipe 8 and flow-disturbing are set in first circulation pipe 3
Hole 9 upsets the media flow rule in first circulation pipe 3, extends medium residence time in first circulation pipe, to extend
The time of heat exchange improves the efficiency of heat exchange.
Rose Box 6 and pump box 15,6 He of Rose Box are connected between the first circulation pipe 3 and second circulation pipe 19
Pump box 15 is connected to the both ends of first circulation pipe 3.
The inside of the pump box 15 is equipped with liquid pump 17, and the both ends of the liquid pump 17 have been respectively communicated with first circulation pipe 3 and the
Two circulation pipes 19.
The both ends of the Rose Box 6 have been respectively communicated with first circulation pipe 3 and second circulation pipe 19, and the inside of Rose Box 6 is set
There is filter screen 16.
By the way that liquid pump 17 is arranged, so that the medium in circulation pipe is adequately flowed, heat is carried out by the flowing of medium
Exchange, improves the efficiency of heat exchange.
By the way that Rose Box 15 is arranged, circulation fluid is filtered, by the filtered fluid to circulation fluid, ensure that circulation fluid
Cleaning improve the efficiency of heat exchange to ensure that the mobility of circulation fluid.
It further include pressurized canister 1 and purification pot 2；
The exchange pipe 5 is wound on the outside of purification pot 2 in the shape of a spiral, and exchange pipe 5 is connected to purification pot by fixed frame 20
2, the upper end of exchange pipe 5 is connected with feed pipe 4, and the lower end of exchange pipe 5 passes through the discharge nozzle 13 being equipped with and is connected to the interior of purification pot 1
Portion；
The second circulation pipe 19 is set to the inside of pressurized canister 1, and the both ends of second circulation pipe 19 are respectively communicated with to be followed in first
The both ends of endless tube 3, and form the circuit of a closure.
The pump box 15 is connected to pressurized canister 1.
The pressurized canister 1 is to become liquid to gas pressurized, during gas becomes liquid, can discharge a large amount of heat
Can, meanwhile, liquefied natural gas needs liquid becoming gas in purification, this process needs to absorb a large amount of thermal energy, will pressurize
The thermal energy discharged in the process is used to improve the utilization rate of energy, saving can be about to the thermal energy absorbed in purification process.
The feed pipe 4 is connected with flow valve 12.
The purification pot 2 is internally connected with temperature inductor 11.
Flow valve 12 and temperature inductor 11 are electrically connected, the temperature of liquefied natural gas is controlled by temperature inductor 11
Degree, since the media flow speed in circulation pipe is certain, when temperature occurs abnormal, by the folding for adjusting flow valve 12
It measures to adjust the intake of liquefied natural gas, when the flow for being passed through liquefied natural gas increases, the temperature in purification pot 2 is reduced,
When the flow for being passed through liquefied natural gas reduces, the temperature in purification pot 2 is increased.
The inside of the purification pot 2 is equipped with multiple packing layers 18, and the purification pot 2 is equipped with gas outlet 14, the gas outlet
14 are set to the top of packing layer 18.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, making any variation in its shape or structure, all the utility model rights that falls into are wanted
The technical solution in confining spectrum is sought, is all fallen within the protection scope of the utility model.
Claims (10)
1. a kind of heat-exchange device applied in liquefied natural gas preparation process, it is characterised in that: including for heat exchange
Exchange pipe (5) and circulation pipe, the circulation pipe include interconnected first circulation pipe (3) and second circulation pipe (19), described
First circulation pipe (3) is set to the inside of exchange pipe (5), and the axis of first circulation pipe (3) and the axis of exchange pipe (5) are overlapped.
2. a kind of heat-exchange device applied in liquefied natural gas preparation process according to claim 1, feature exist
In: the first circulation pipe (3) passes through the inside that the support frame (10) being equipped with is connected to exchange pipe (5), the first circulation pipe
(3) be internally connected with multiple hollow disturbed flow pipes (8), the both ends of the disturbed flow pipe (8) are connected to the interior of first circulation pipe (3)
The side wall of wall, disturbed flow pipe (8) is equipped with multiple flow-disturbing holes (9).
3. a kind of heat-exchange device applied in liquefied natural gas preparation process according to claim 1, feature exist
In: the exchange pipe (5) is internally connected with multiple spoilers (7), and the spoiler (7) is set to exchange pipe (5) and first and follows
Between endless tube (3).
4. a kind of heat-exchange device applied in liquefied natural gas preparation process according to claim 2, feature exist
In: Rose Box (6) and pump box (15), the Rose Box are connected between the first circulation pipe (3) and second circulation pipe (19)
(6) and pump box (15) is connected to the both ends of first circulation pipe (3).
5. a kind of heat-exchange device applied in liquefied natural gas preparation process according to claim 4, feature exist
Be equipped with liquid pump (17) in: the inside of the pump box (15), the both ends of the liquid pump (17) be respectively communicated with first circulation pipe (3) and
Second circulation pipe (19).
6. a kind of heat-exchange device applied in liquefied natural gas preparation process according to claim 4, feature exist
In: the both ends of the Rose Box (6) have been respectively communicated with first circulation pipe (3) and second circulation pipe (19), the inside of Rose Box (6)
Equipped with filter screen (16).
7. a kind of heat-exchange device applied in liquefied natural gas preparation process according to claim 5, feature exist
In: it further include pressurized canister (1) and purification pot (2)；
The exchange pipe (5) is wound on the outside of purification pot (2) in the shape of a spiral, and exchange pipe (5) is connected to only by fixed frame (20)
Change tank (2), the upper end of exchange pipe (5) is connected with feed pipe (4), and the lower end of exchange pipe (5) passes through the discharge nozzle (13) being equipped with even
Pass through the inside of purification pot (2)；
The second circulation pipe (19) is set to the inside of pressurized canister (1), and the both ends of second circulation pipe (19) are respectively communicated in first
The both ends of circulation pipe (3), and form the circuit of a closure.
8. a kind of heat-exchange device applied in liquefied natural gas preparation process according to claim 7, feature exist
In: the pump box (15) is connected to pressurized canister (1).
9. a kind of heat-exchange device applied in liquefied natural gas preparation process according to claim 7, feature exist
In: the feed pipe (4) is connected with flow valve (12).
10. a kind of heat-exchange device applied in liquefied natural gas preparation process according to claim 7, feature exist
In: the purification pot (2) is internally connected with temperature inductor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246023.7U CN209456385U (en) | 2018-12-28 | 2018-12-28 | A kind of heat-exchange device applied in liquefied natural gas preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246023.7U CN209456385U (en) | 2018-12-28 | 2018-12-28 | A kind of heat-exchange device applied in liquefied natural gas preparation process |
Publications (1)
| Publication Number | Publication Date |
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| CN209456385U true CN209456385U (en) | 2019-10-01 |
Family
ID=68043041
Family Applications (1)
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| CN201822246023.7U Expired - Fee Related CN209456385U (en) | 2018-12-28 | 2018-12-28 | A kind of heat-exchange device applied in liquefied natural gas preparation process |
Country Status (1)
| Country | Link |
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| CN (1) | CN209456385U (en) |
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2018
- 2018-12-28 CN CN201822246023.7U patent/CN209456385U/en not_active Expired - Fee Related
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Granted publication date: 20191001 Termination date: 20211228 |