CN104611080B - A kind of gas hydrate slurry liquid integrated utilization device and method - Google Patents
A kind of gas hydrate slurry liquid integrated utilization device and method Download PDFInfo
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- CN104611080B CN104611080B CN201410795525.9A CN201410795525A CN104611080B CN 104611080 B CN104611080 B CN 104611080B CN 201410795525 A CN201410795525 A CN 201410795525A CN 104611080 B CN104611080 B CN 104611080B
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Abstract
The invention discloses a kind of gas hydrate slurry liquid integrated utilization device and method, relate to energy technology field.The hydrate slurry integrated utilization device of the present invention, including defeated and cold energy use, hydrate slurry growing amount four unit of control outside hot water generation and chilled water generation, hydrate slurry preparation storage and gasification, hydrate slurry.Accordingly, hydrate slurry integrated utilization method includes that hot water generates and chilled water generates, hydrate slurry preparation is stored and gasification, hydrate slurry outer defeated and refrigeration process, hydrate slurry growing amount rate-determining steps.The present invention prepares hydrate slurry by Absorption Refrigerator high-efficiency and continuous, utilizes the automatic control system regulation hydrate slurry growing amount of design, by hydrate slurry heating and gasifying, is sent to urban pipe network, for natural gas peak-shaving；The mobility that hydrate slurry is good, entrucking transport is utilized to solve remote districts user's use gas difficulty；Using hydrate slurry as cool storage medium, pipe is delivered to fresh-keeping warehouse and freezes, and more energy-conservation than traditional chilled water storage system 30% 50%.
Description
Technical field
The present invention relates to energy technology field, be specifically related to a kind of gas hydrate slurry liquid integrated utilization device and method.
Background technology
The production of gas hydrates and storage need low temperature and high pressure, and refrigeration plant and storage facilities are had higher requirement.My god
So gas hydrate does not have mobility, and it is long that cargo handling process expends the time, impact supply efficiency.Water is as the most widest heat
Pumped (conveying) medium, the form of heat of its conveying is sensible heat, and heat flow density is the lowest.If the high heat flux of slurry form can be used
Pumped (conveying) medium, then can save the energy consumption of transportation water pump, reduces line size, is substantially reduced system investments and operating cost.Can
See, solve gas hydrates and produce in storage and transport process the problem that power consumption is high, be difficult to transhipment, have important practical significance.With
Time, within air-conditioning systems, replace water as pumped (conveying) medium with hydrate slurry, it has also become the trend instantly developed.
Gas hydrate slurry liquid process with gas hydrates process compared with have the advantage that (1) generate, decompose easy to control
(2) good mobility.(3) can be combined with Absorption Refrigerator easily.(4) processing procedure is simple, crystal of hydrate
Only the natural gas of input is made MIN process before formation.(5) generate without low temperature or high pressure.(6) it is not required in processing
Oxidant or catalyst.(7) it is a kind of high heat flux pumped (conveying) medium.
At present, announced the hydrate delivered or hydrate slurry integrated utilization device has specifically included that
1, Chinese patent CN 103103004A discloses a kind of gas hydrates synthesis-decomposition integration technique and system.Should
Patent of invention proposes to synthesize-decompose skid-mounted system by gas hydrates by gas hydrates and transports to user.But hydrate
Not there is mobility, transport difficult.
2, Chinese patent CN 103411132A discloses hydrate natural gas storing and peak regulation technique and system.This invention carries
Going out and add in natural gas by a small amount of propane, butane, the pressure needed for making the synthesis ratio conventional method of gas hydrates is low, warm
Degree height.But the technique that this patent of invention is announced and system are only limitted to storage and the peak regulation of hydrate, do not make full use of hydrate
Multiple advantage.
3, Chinese patent CN 102927442A utilizes the natural gas of the low temperature environment in seabed, sea water and offshore drilling platform extraction
Generate hydrate slurry, the hydrate slurry pipeline transportation by seabed.Owing to environments such as subsea is extremely complex badly, hydrate slurry
Body is difficult to ensure by the flowing safety of pipeline transportation.
4, document " utilizes pipe network pressure energy to prepare the peak regulation new technique of gas hydrates " (gas industry .2010,30 (10) .)
In mention make full use of natural gas expand produce cold prepare gas hydrates, for gas gas storage and peak-shaving.But water
Compound needs to store at low temperatures, and storage facilities is required height.
The deficiency having the existence of integrated utilization device as can be seen from the above the open literature and patent search results mainly has:
(1) device generation gas hydrates desirable pressure is high, temperature is low；
(2) hydrate entrucking transport difficult, adds human and material resources and financial resources；
(3) device does not have and prepares gas hydrate slurry liquid, gas hydrate slurry liquid peak regulation, transportation of natural gas hydrate slurry
Liquid and the function of cold energy use integration.
Summary of the invention
It is an object of the invention to the shortcoming overcoming prior art to exist, it is provided that a kind of gas hydrate slurry liquid integrated utilization device
And method, for natural gas peak-shaving, entrucking transport, fresh-keeping warehouse refrigeration.Solve gas hydrates in prior art and generate process
Power consumption height, the problem that gas hydrates are difficult to transhipment.Meanwhile, in fresh-keeping warehouse Refrigeration Technique, water is replaced with hydrate slurry
As pumped (conveying) medium, save big energy.
A kind of gas hydrate slurry liquid integrated utilization method of the present invention, comprises the steps:
(1) hot water generates and chilled water generation step: solar thermal collector 1 converts solar energy into water in solar thermal collector 1
Body stores the heat energy having, and generates hot water, and hot water flows into hot water storage tank 2 and stores；Temperature is preset when hot water temperature does not meets hot water storage tank 2
During degree threshold value, start electric heater unit 3 and carry out auxiliary heating, hot water in hot water storage tank 2 is shunted, enters suction-type lithium bromide system
Cold group (7,8), hot water drives lithium bromide absorption refrigerating set (7,8) to generate chilled water, and chilled water flows into hydrate slurry
Liquid maker (16,17)；
Solar energy is a kind of inexhaustible clean energy resource, and lithium bromide absorption refrigerating set utilizes solar energy system raw
The hot water become drives and generates chilled water, and therefore generating the process of chilled water is low-carbon environment-friendly, energy-saving and cost-reducing；
(2) hydrate slurry preparation stores and gasification step: natural gas enters natural valve station 14 from high-pressure natural gas pipe network,
Pressure is 5-7MPa, and by a part of high-pressure natural gas after natural valve station 14 blood pressure lowering, pressure drops to 1.6-2.0MPa, enters
Urban pipe network, another part high-pressure natural gas enters hydrate slurry maker (16,17) through natural gas flow adjustable valve 15, with
The chilled water that above-mentioned (1) step generates is sufficiently mixed, and generates gas hydrate slurry liquid；
Hydrate slurry flows out bottom hydrate slurry maker 16, flows in hydrate slurry liquid storage tank (21,22) and stores,
Pressure store is 2-4MPa, and temperature is 5 DEG C, average every day can synthesized hydrate 9480Kg, natural gas-storing 1197Kg, substantially
Meet hydrate growing amount needed for peak regulation；
When needing to carry out natural gas peak-shaving, hydrate slurry liquid storage tank 21 is heated by electric heater unit 23, electric heater unit 24
Heating hydrate slurry liquid storage tank 22, hydrate slurry gasification enters urban pipe network, decomposes the water pump 25 by centrifugation generated and flows
Entering lithium bromide absorption refrigerating set (7,8) to recycle, water tank 32 is that lithium bromide absorption refrigerating set (7,8) provides
Make-up water；
(3) the outer defeated and refrigeration process step of hydrate slurry: in hydrate slurry maker 17, a part of hydrate slurry is through pump
Sending-flow automatically associating mode of movement to send into tank car storage tank 38, tank car storage tank 38 uses fine vacuum multilayer insulation, and tank car is by hydrate slurry
Liquid transports gas hydrate slurry liquid gas holder station to, and the gas medium in tank car storage tank is discharged through valve 44 and reclaimed, through valve
After 39 discharge hydrate slurries remove supercharger 40 heating and gasifying, return the supercharging of inner core top；
In hydrate slurry maker 17, air/water compound slurry heat exchanger sent into by another part hydrate slurry pump 33 by centrifugation
35, fresh-keeping warehouse 36 to be freezed, after heat exchange, hydrate slurry is back to hydrate slurry maker 17；
(4) hydrate slurry growing amount rate-determining steps: accepting sky by control panel input weather data WD, processor E-1
After destiny is according to WD, is converted to the signal of telecommunication and passes to solar thermal collector 1, hot water storage tank 2, lithium bromide absorption refrigerating set
(7,8), solar thermal collector hot water flow, water temperature information, hot water storage tank water level, water temperature information, refrigeration unit coolant current
Amount, water temperature information are delivered separately to processor E-2 process；During information is transmitted, artificial is inputted by control panel
Corresponding chilled water flow information LF, natural gas temperature information TM, gas component information GC, natural pressure force information PT,
Gas discharge information FR, is processed by processor E-3 and produces hydrate slurry growing amount information Mass, pass to processor E-2
Process；The conversion of gained information is flowed to Flux Valve Control device a by processor E-2, and Flux Valve Control device a is to hot water
Flow control valve 6, chilled water flow control valve (10,26), natural gas flow adjustable valve 15 aperture are controlled, and flow is adjusted
Joint valve opening information treated device E-4 process passes to processor E-2 and plays the effect of feedback regulation.
The method farther includes:
In described step (1), hot water temperature is at 90 DEG C-105 DEG C, and chilled water temperature is adjustable in the range of 5-10 DEG C, hot water
Flow is at 100m3-130m3/ h, chilled water flow is at 100-120m3In the range of/h adjustable.
In described step (2), chilled water is 20:1-75:1 with the mol ratio of natural gas, hydrate slurry maker (16,
17) pressure in is 5-7MPa, and temperature is 5-10 DEG C.
In described step (3), hydrate slurry car loading operation is realized by pumping-gravity flow associated form.
In described step (4), regulated the flow of hot water, chilled water, natural gas in real time by Flux Valve Control device a
Control the growing amount of hydrate slurry.
Realize the device of hydrate slurry integrated utilization method of the present invention: include that hot water generates and chilled water signal generating unit, hydrate
Serosity preparation is stored and gasification unit, hydrate slurry outer defeated and cold energy use unit, hydrate slurry growing amount control unit four
Individual part.Wherein:
Hot water generates and chilled water signal generating unit, including three set hot water cyclesystems, hot water cyclesystem one by solar thermal collector 1,
Hot water storage tank 2, heat-exchanger pump 4 are sequentially connected with by hot water thermal insulating feed-line, constitute closed circuit, and hot water cyclesystem two is by storing
Boiler 2, heat-exchanger pump 5, lithium bromide absorption refrigerating set 8 are sequentially connected with by hot water thermal insulating feed-line, and composition loops back
Road, hot water cyclesystem three is managed by hot water thermal insulating conveying by hot water storage tank 2, heat-exchanger pump 5, lithium bromide absorption refrigerating set 7
Line is sequentially connected with, and constitutes closed circuit；
Hydrate slurry preparation stores and gasification unit, and including two set refrigerant water systems, refrigerant water system one passes through coolant
Water insulation feed-line by lithium bromide absorption refrigerating set 7, hydrate slurry maker 16, hydrate slurry liquid storage tank (21,
22), centrifugal pump 25 be sequentially connected, constitute closed circuit, refrigerant water system two is by lithium bromide absorption refrigerating set 8, water
Compound serosity maker 16, hydrate slurry liquid storage tank (21,22), centrifugal pump 25 are connected successively by chilled water insulation feed-line
Connecing, constitute closed circuit, by the thermometer (9,12,28) being arranged on pipeline, piezometer 13, electromagnetic flowmeter 11 is real
Time monitoring operating condition, water tank 32, centrifugal pump 30 by pipeline connect and with chilled water be incubated feed-line cross；
The outer defeated and cold energy use unit of hydrate slurry, including Liang Tao hydrate slurry transportation system, transportation system one includes successively
The hydrate slurry maker 17 of connection, centrifugal pump 37, tank car storage tank 38, tank car storage tank 38 is provided with by valve 39, supercharging
Device 40 is sequentially communicated the supercharging pipeline of composition, liquidometer 41 and Pressure gauge 45 and is arranged in control box, and Pressure gauge 43 is arranged on car
Before；The air that transportation system two is provided with in including the hydrate slurry maker 17 being sequentially communicated, centrifugal pump 33, fresh-keeping warehouse 36/
Hydrate slurry heat exchanger 35；
Hydrate slurry growing amount control unit, passes including information transferring element and control parts, temperature sensor and fluid flow
Sensor is arranged on the outlet of solar thermal collector 1 hot water piping and lithium bromide absorption refrigerating set (7,8) chilled water pipeline outlet,
Level sensor and temperature sensor are arranged on hot water storage tank 2 upper and lower, and gas flow sensor is arranged on gas flow and adjusts
Joint valve 15 is internal；Control panel can arrange water temperature in solar thermal collector 1, in real time monitoring hot water storage tank 2 middle water level, water temperature,
Having water level display function, have and surpass water temperature and the instruction of super water-level alarm into water, can be artificial be inputted by control panel is corresponding
Weather data WD, chilled water flow information LF, natural gas temperature information TM, gas component information GC, gas pressure are believed
Breath PT, gas discharge information FR；Information transferring element is made up of processor (E-1, E-2, E-3, E-4), control portion
Part is adjusted by Flux Valve Control device a, hot water flow regulation valve 6, chilled water flow control valve (10,26), gas discharge
Joint valve 15 forms.
The remarkable advantage of the present invention is in the following aspects:
(1) utilizing solar energy system to freeze, low-carbon environment-friendly, energy-saving and cost-reducing, hydrate slurry generates without low temperature or high pressure, institute
Need little energy；
(2) hydrate slurry entrucking transport, solves remote districts user's use gas difficulty, improves the economy of natural gas transportation；
(3) utilizing the mobility that hydrate slurry is good, hydrate slurry car loading operation is realized by pumping-gravity flow associated form,
To save the energy；
(4) by electric heater unit, hydrate slurry gasification is used for natural gas peak-shaving, solves the most serious city natural
Gas peaking problem；
(5) hydrate slurry replacement water freezes for fresh-keeping warehouse, can reduce normal power load, than traditional chilled water storage system
Energy-conservation 30%-50%；
(6) use automatic control system regulation hydrate slurry growing amount, it is ensured that effective utilization of hydrate slurry, improve and be
The overall efficiency of system.
Accompanying drawing explanation
Fig. 1 is the hydrate slurry integrated utilization device schematic diagram of the present invention；
Fig. 2 is the hydrate slurry integrated utilization flow chart of the present invention；
Fig. 3 is that the hot water of the present invention generates and chilled water signal generating unit；
Fig. 4 is that the hydrate slurry preparation of the present invention stores and gasification unit；
Fig. 5 is the outer defeated and cold energy use unit of hydrate slurry of the present invention；
Fig. 6 is the pumping-Loading by Gravity system flow chart of the present invention；
Fig. 7 is the hydrate slurry growing amount control unit of the present invention；
Fig. 8 is the hydrate slurry growing amount control flow chart of the present invention.
Detailed description of the invention
With detailed description of the invention, present disclosure is further described in detail below in conjunction with the accompanying drawings.
Gas hydrate slurry liquid refers to that gas hydrates are dispersed in multiphase flow formation serosity with the form of solid particle, natural
Gas hydrate serosity can utilize the gas storage potential of gas hydrates to produce under suitable condition.Gas hydrates
Serosity is easy to handling and transport, and at least contains the gas of 75 times of volumes in per unit hydrate slurry.
Owing to decomposing of gas hydrate slurry liquid needs more energy, as long as therefore cutting off heat transfer path, natural gas just can be made
Hydrate slurry exists steadily in the long term, it is ensured that transportation safety.Gas hydrate slurry liquid produces by land, is furnished with suitable
The tank car closed loads facility, is specifically used to transport gas hydrate slurry liquid, can significantly improve the economy of transport.Natural gas
Application hydrate slurry storaging and transport technology in door station is significant, and there is the high-pressure natural gas supply of abundance at the most natural valve station,
The condition of necessity is provided for generating of hydrate slurry.On the other hand, the consumer group of natural gas can be expanded, by natural gas
Remote small towns and rural area are pushed in consumption to, and are impracticable in reality by lay pipe network realizing this purpose.
Gas hydrate slurry liquid is the pumped (conveying) medium of a kind of high heat flux, uses it for fresh-keeping warehouse refrigeration, can obtain satisfaction
Refrigeration.
Characteristic based on above-mentioned gas hydrate slurry liquid, by generating gas hydrate slurry liquid, then by water at natural valve station
Compound serosity, for natural gas peak-shaving, entrucking transport, fresh-keeping warehouse refrigeration, is described in detail below:
As it is shown in figure 1, hydrate slurry integrated utilization device, including solar thermal collector 1, hot water storage tank 2, lithium bromide absorption
Formula refrigeration unit (7,8), hydrate slurry maker (16,17), hydrate slurry liquid storage tank (21,22), water tank 32；
Hydrate slurry particular use is: 1., heating and gasifying enter urban pipe network through natural valve station 14；2., fresh-keeping warehouse transported to by pipe
36 refrigeration；3., by sending into tank car storage tank 38 transport to remote districts.
As in figure 2 it is shown, hydrate slurry integrated utilization flow process, generate and chilled water signal generating unit, hydrate slurry including hot water
Preparation is stored and gasification unit, hydrate slurry outer defeated and cold energy use unit, four portions of hydrate slurry growing amount control unit
Point.
As it is shown on figure 3, hot water generates and chilled water signal generating unit, including solar thermal collector 1, hot water storage tank 2, electrical heating fills
Putting 3, heat-exchanger pump 4, heat-exchanger pump 5, hot water flow regulates valve 6, lithium bromide absorption refrigerating set 7, suction-type lithium bromide system
Cold group 8；This unit includes three set hot water cyclesystems.Hot water cyclesystem one by solar thermal collector 1, hot water storage tank 2,
Heat-exchanger pump 4 is sequentially connected with by hot water thermal insulating feed-line, constitutes closed circuit.Hot water cyclesystem two by hot water storage tank 2,
Heat-exchanger pump 5, lithium bromide absorption refrigerating set 8 are sequentially connected with by hot water thermal insulating feed-line, constitute closed circuit.Hot water
Blood circulation three is connected by hot water thermal insulating feed-line successively by hot water storage tank 2, heat-exchanger pump 5, lithium bromide absorption refrigerating set 7
Connect, constitute closed circuit.Solar thermal collector 1 converts solar energy into water body in solar thermal collector 1 and stores the heat energy having, raw
Becoming hot water, temperature is 90-105 DEG C, and flow is 100-130m3/ h, hot water flows into hot water storage tank 2 and stores.When hot water temperature not
When meeting hot water storage tank 2 preset temperature threshold value, start electric heater unit 3 and carry out auxiliary heating.Hot water in hot water storage tank 2 is divided
Stream, enters lithium bromide absorption refrigerating set (7,8).Hot water drives lithium bromide absorption refrigerating set (7,8) to generate coolant
Water, chilled water temperature is 5-10 DEG C, and flow is 100-120m3/h。
As shown in Figure 4, hydrate slurry preparation stores and gasification unit, including lithium bromide absorption refrigerating set (7,8), from
Heart pump (25,30), electric heater unit (23,24), hydrate slurry liquid storage tank (21,22), chilled water flow control valve (10,
26), thermometer (9,12,28), valve (18,19,20,27,29,31), natural gas flow adjustable valve 15, electromagnetism
Effusion meter 11, piezometer 13, natural valve station 14, hydrate slurry maker 16, water tank 32；This unit includes that two sets are cold
Matchmaker's water circulation system.Refrigerant water system one is incubated feed-line by lithium bromide absorption refrigerating set 7, water by chilled water
Compound serosity maker 16, hydrate slurry liquid storage tank (21,22), centrifugal pump 25 are sequentially connected, and constitute closed circuit.Coolant
Water circulation system two by lithium bromide absorption refrigerating set 8, hydrate slurry maker 16, hydrate slurry liquid storage tank (21,22),
Centrifugal pump 25 is sequentially connected with by chilled water insulation feed-line, constitutes closed circuit.By the thermometer that is arranged on pipeline (9,
12,28), piezometer 13, operating condition monitored in real time by electromagnetic flowmeter 11.Water tank 32, centrifugal pump 30 are connected by pipeline
And cross with chilled water insulation feed-line.Natural gas enters natural valve station 14 from high-pressure natural gas pipe network, and pressure is 5-7MPa.
By a part of high-pressure natural gas after natural valve station 14 blood pressure lowering, pressure is down to 1.6-2.0MPa, enters urban pipe network.Another
Partial high pressure natural gas via natural gas flow adjustable valve 15 enters hydrate slurry maker (16,17), with suction-type lithium bromide
The chilled water that refrigeration unit (7,8) generates is sufficiently mixed, and generates gas hydrate slurry liquid.Hydrate slurry is from hydrate slurry
Flowing out bottom liquid maker 16, flow in hydrate slurry liquid storage tank (21,22) and store, pressure store is 2-4MPa, temperature
It it is 5 DEG C.When needing to carry out natural gas peak-shaving, hydrate slurry liquid storage tank 21 is heated by electric heater unit 23, and electrical heating fills
Putting 24 pairs of hydrate slurry liquid storage tanks 22 to heat, hydrate slurry gasification enters urban pipe network.Decompose the water generated by centrifugation
Pump 25 flows into lithium bromide absorption refrigerating set (7,8) and recycles.Water tank 32 be lithium bromide absorption refrigerating set (7,
8) make-up water is provided.
The amount of gas that hydrate solids granule consumed is generated it is concluded that the amount of hydrate solids particles generation by calculating.
Hydrate solids granule forms consumed gas volume V at standard conditionsg, computational methods are as follows:
In formula: T0、P0Being the temperature and pressure under the status of criterion respectively, Z is compressibility factor, and R is gas constant, Δ niFor consuming gas
The mole of body.
Gas volume V stored by unit volume hydrate solids granuleH, computational methods are as follows:
In formula: VmFor molar volume of gas, δHFor hydrate solids grain density, MHFor hydrate solids granule mole
Quality.
As it is shown in figure 5, the outer defeated and cold energy use unit of hydrate slurry, including centrifugal pump (33,37), piezometer (43,45),
Valve (34,39,42,44), hydrate slurry maker 17, air/water compound slurry heat exchanger 35, fresh-keeping warehouse 36,
Tank car storage tank 38, supercharger 40, liquidometer 41；The outer defeated part of hydrate slurry entrucking includes two set hydrate slurry delivery system
System, hydrate slurry maker 17 that delivery system is unified to be included being sequentially communicated, centrifugal pump 37, tank car storage tank 38.Tank car storage tank
38 are provided with and are sequentially communicated, by valve 39, supercharger 40, the supercharging pipeline constituted.Induction system two includes the hydration being sequentially communicated
The air/water compound slurry heat exchanger 35 being provided with in thing serosity maker 17, centrifugal pump 33, freezer 36.Hydrate slurry is raw
Tank car storage tank 38 sent into by a part of hydrate slurry pump 37 by centrifugation in 17 of growing up to be a useful person, tank car storage tank 38 use fine vacuum multilamellar every
Heat.Hydrate slurry is transported to gas hydrate slurry liquid gas holder station by tank car.Gas medium in tank car storage tank is discharged through valve 44
Reclaimed.Discharge after hydrate slurry removes supercharger 40 heating and gasifying through valve 39, return the supercharging of inner core top.Supercharging
Purpose is to maintain stablizing of hydrate slurry.Liquidometer 41 and Pressure gauge 45 are arranged in control box, and Pressure gauge 43 is installed
At Herba Plantaginis.By the real-time monitoring to pressure information and liquid level information, it is ensured that transportation safety.In hydrate slurry maker 17 separately
Air/water compound slurry heat exchanger 35 sent into by a part of hydrate slurry pump 33 by centrifugation, freezes fresh-keeping warehouse 36.After heat exchange
Hydrate slurry is back to hydrate slurry maker 17.
As shown in Figure 6, pumping-Loading by Gravity system flow, including hydrate slurry maker 17, centrifugal pump 37, dress liquid is soft
Pipe (46,47,48,49,50,51)；Z0For liquid level, H in hydrate slurry maker 170Raw for hydrate slurry
Grow up to be a useful person 17 outlets and dress liquid flexible pipe between the discrepancy in elevation, the potential energy of loading system is Z0+H0, L0、D0And Q0It is respectively hydration
The pipe range of thing slurry transfer lines, caliber and flow.Utilizing the energy that topographical elevation difference and centrifugal pump provide, hydrate slurry passes through
Pipeline is delivered to fill liquid flexible pipe, carries out car loading operation.Pumping-Loading by Gravity system can save the energy, reduces investment cost.
As it is shown in fig. 7, hydrate slurry growing amount control unit, including processor (E-1, E-2, E-3, E-4), solar energy
Heat collector 1, hot water storage tank 2, lithium bromide absorption refrigerating set (7,8), Flux Valve Control device a, hot water flow is adjusted
Joint valve 6, chilled water flow control valve (10,26), natural gas flow adjustable valve 15；Temperature sensor and liquid flow sensor
It is arranged on the outlet of solar thermal collector 1 hot water piping and lithium bromide absorption refrigerating set (7,8) chilled water pipeline outlet, water
Level sensor and temperature sensor are arranged on hot water storage tank 2 upper and lower, and gas flow sensor is arranged on gas flow regulation
Valve 15 is internal；Control panel can arrange water temperature in solar thermal collector 1, in real time monitoring hot water storage tank 2 middle water level, water temperature,
Having water level display function, have and surpass water temperature and the instruction of super water-level alarm into water, can be artificial be inputted by control panel is corresponding
Weather data WD, chilled water flow information LF, natural gas temperature information TM, gas component information GC, gas pressure are believed
Breath PT, gas discharge information FR；Information transferring element is made up of processor (E-1, E-2, E-3, E-4), control portion
Part is adjusted by Flux Valve Control device a, hot water flow regulation valve 6, chilled water flow control valve (10,26), gas discharge
Joint valve 15 forms.By control panel input weather data WD, processor E-1 after accepting weather data WD, conversion
Solar thermal collector 1, hot water storage tank 2, lithium bromide absorption refrigerating set (7,8), solar energy heating is passed to for the signal of telecommunication
Device hot water flow, temperature information, hot water storage tank water level, water temperature information, refrigeration unit chilled water flow, temperature information pass to
Processor E-2 process；During information is transmitted, artificial by control panel input corresponding chilled water flow information LF,
Natural gas temperature information TM, gas component information GC, natural pressure force information PT, gas discharge information FR, by processing
Device E-3 processes and produces hydrate slurry growing amount information Mass, passes to processor E-2 process；Gained is believed by processor E-2
Breath conversion flows to Flux Valve Control device a, Flux Valve Control device a and adjusts hot water flow regulation valve 6, chilled water flow
Joint valve (10,26), natural gas flow adjustable valve 15 aperture are controlled, at flow control valve opening information treated device E-4
Reason passes to processor E-2 and plays the effect of feedback regulation.
As shown in Figure 8, hydrate slurry growing amount control flow, comprise the following steps:
1., networking obtains real-time weather data, inputs weather data by control panel；
2. hot water temperature, flow that solar thermal collector generates, the hot water water level in hot water storage tank, temperature, system are recorded, respectively
The chilled water temperature of cold crew grouping, flow；
3., chilled water flow, natural gas temperature, gas component, gas pressure, natural gas flow are inputted by control panel
Amount data, treated device processes, and exports hydrate slurry growing amount data；
4., the data obtained is arranged, it may be judged whether reach hydrate slurry growing amount evaluation criterion requirement set in advance, if reached
To evaluation criterion requirement, reduce respective valves aperture by Flux Valve Control device；If not reaching evaluation criterion requirement, logical
Inflow-rate of water turbine governor valve control device increases respective valves aperture.
It should be noted that the content in the description of the present invention is to preferably explain claim and unrestricted claim
Protection domain, scope of the present invention is as the criterion with claims, and those skilled in the art with reference in addition
The change that need not pay creative work made on the basis of bright book content also should fall into scope of the present invention.
Claims (8)
1. a gas hydrate slurry liquid integrated utilization method, it is characterised in that: comprise the following steps:
(1) hot water generates and chilled water generation step: solar radiant energy is converted into solar energy heating by solar thermal collector (1)
In device (1), water body stores the heat energy having, and generates hot water, and hot water flows into hot water storage tank (2) and stores；When hot water temperature does not meets storage
During boiler (2) preset temperature threshold value, start electric heater unit (3) and carry out auxiliary heating, by hot water in hot water storage tank (2)
Shunting, enters lithium bromide absorption refrigerating set (7,8), and hot water drives lithium bromide absorption refrigerating set (7,8) to generate cold
Matchmaker's water, chilled water flows into hydrate slurry maker (16,17)；
(2) hydrate slurry preparation stores and gasification step: natural gas enters natural valve station (14) from high-pressure natural gas pipe network,
Pressure is 5-7MPa, and by a part of high-pressure natural gas after the blood pressure lowering of natural valve station (14), pressure drops to 1.6-2.0MPa,
Enter urban pipe network, another part high-pressure natural gas through natural gas flow adjustable valve (15) enter hydrate slurry maker (16,
17), the chilled water generated with above-mentioned (1) step is sufficiently mixed, and generates hydrate slurry；
Hydrate slurry flows out from hydrate slurry maker (16) bottom, flows into storage in hydrate slurry liquid storage tank (21,22)
Depositing, pressure store is 2-4MPa, and temperature is 5 DEG C；
When needing to carry out natural gas peak-shaving, hydrate slurry liquid storage tank (21) is heated by electric heater unit (23), electrical heating
Hydrate slurry liquid storage tank (22) is heated by device (24), and hydrate slurry gasification enters urban pipe network, decomposes generation
Water pump by centrifugation (25) flows into lithium bromide absorption refrigerating set (7,8) and recycles, and water tank (32) is lithium bromide absorption
Formula refrigeration unit (7,8) provides make-up water；
(3) the outer defeated and refrigeration process step of hydrate slurry: a part of hydrate slurry warp in hydrate slurry maker (17)
Pumping-gravity flow associating mode of movement sends into tank car storage tank (38), and hydrate slurry is transported to the storage of gas hydrate slurry liquid and joins by tank car
Standing, the gas medium in tank car storage tank is discharged through valve (44) and is reclaimed, and discharges hydrate slurry through valve (39) and goes to increase
After depressor (40) heating and gasifying, return the supercharging of inner core top；
In hydrate slurry maker (17), another part hydrate slurry pump by centrifugation (33) feeding air/water compound serosity changes
Hot device (35), freezes to fresh-keeping warehouse (36), and after heat exchange, hydrate slurry is back to hydrate slurry maker (17)；
(4) hydrate slurry growing amount rate-determining steps: by control panel input weather data (WD), processor (E-1) exists
After accepting weather data (WD), be converted to the signal of telecommunication and pass to solar thermal collector (1), hot water storage tank (2), lithium bromide
Absorption refrigeration unit (7,8), solar thermal collector hot water flow, water temperature information, hot water storage tank water level, water temperature information, system
Cold group chilled water flow, water temperature information are delivered separately to processor (E-2) and process；During information is transmitted, artificial
By control panel input corresponding chilled water flow information (LF), natural gas temperature information (TM), gas component information (GC),
Natural pressure force information (PT), gas discharge information (FR), processed by processor (E-3) and produce hydrate slurry growing amount letter
Breath (Mass), passes to processor (E-2) and processes；The conversion of gained information is flowed to flow control valve control by processor (E-2)
Device (a) processed, Flux Valve Control device (a) is to hot water flow regulation valve (6), chilled water flow control valve (10,26), natural
Air-flow adjustable valve (15) aperture is controlled, and the treated device of flow control valve opening information (E-4) processes and passes to processor
(E-2) effect of feedback regulation is played.
2. the method for claim 1, farther includes:
In described step (1), hot water temperature is at 90 DEG C-105 DEG C, and chilled water temperature is adjustable in the range of 5-10 DEG C.
3. method as claimed in claim 1 or 2, farther includes:
In described step (1), hot water flow is at 100m3-130m3/ h, chilled water flow is at 100-120m3Can in the range of/h
Adjust.
4. the method for claim 1, farther includes:
In described step (2), chilled water is 20:1-75:1 with the mol ratio of natural gas.
5. the method for claim 1, farther includes:
In described step (2), the pressure in hydrate slurry maker (16,17) is 5-7MPa, and temperature is 5-10 DEG C.
6. the method for claim 1, farther includes:
In described step (3), hydrate slurry car loading operation is realized by pumping-gravity flow associated form.
7. the method for claim 1, farther includes:
In described step (4), regulated the flow of hot water, chilled water, natural gas in real time by Flux Valve Control device a
Control the growing amount of hydrate slurry.
8. a gas hydrate slurry liquid integrated utilization device, generates and chilled water signal generating unit, hydrate slurry including hot water
Preparation is stored and gasification unit, hydrate slurry outer defeated and cold energy use unit, four portions of hydrate slurry growing amount control unit
Point, wherein:
Hot water generates and chilled water signal generating unit, and including three set hot water cyclesystems, hot water cyclesystem one is by solar thermal collector
(1), hot water storage tank (2), heat-exchanger pump (4) be sequentially connected with by hot water thermal insulating feed-line, constitute closed circuit, hot water follows
Loop systems two is passed through hot water thermal insulating feed-line by hot water storage tank (2), heat-exchanger pump (5), lithium bromide absorption refrigerating set (8)
Being sequentially connected with, constitute closed circuit, hot water cyclesystem three is by hot water storage tank (2), heat-exchanger pump (5), suction-type lithium bromide system
Cold group (7) is sequentially connected with by hot water thermal insulating feed-line, constitutes closed circuit；
Hydrate slurry preparation stores and gasification unit, and including two set refrigerant water systems, refrigerant water system one is by cold
Matchmaker's water insulation feed-line is by lithium bromide absorption refrigerating set (7), hydrate slurry maker (16), hydrate slurry liquid storage tank
(21,22), centrifugal pump (25) are sequentially connected, and constitute closed circuit, and refrigerant water system two is by lithium bromide absorbing type refrigeration
Unit (8), hydrate slurry maker (16), hydrate slurry liquid storage tank (21,22), centrifugal pump (25) pass through chilled water
Insulation feed-line is sequentially connected with, and constitutes closed circuit, by the thermometer (9,12,28) being arranged on pipeline, piezometer
(13), operating condition monitored in real time by electromagnetic flowmeter (11), water tank (32), centrifugal pump (30) by pipeline connect and and
Chilled water insulation feed-line crosses；
The outer defeated and cold energy use unit of hydrate slurry, including Liang Tao hydrate slurry transportation system, transportation system one includes successively
The hydrate slurry maker (17) of connection, centrifugal pump (37), tank car storage tank (38), tank car storage tank (38) is provided with by valve
Door (39), supercharger (40) are sequentially communicated the supercharging pipeline of composition, and liquidometer (41) and Pressure gauge (45) are arranged in control box,
Pressure gauge (43) is arranged on Herba Plantaginis, hydrate slurry maker (17) that transportation system two includes being sequentially communicated, centrifugal pump (33),
Air/water compound slurry heat exchanger (35) being provided with in fresh-keeping warehouse (36)；
Hydrate slurry growing amount control unit, passes including information transferring element and control parts, temperature sensor and fluid flow
Sensor is arranged on the outlet of solar thermal collector (1) hot water piping and lithium bromide absorption refrigerating set (7,8) chilled water pipeline goes out
Mouthful, level sensor and temperature sensor are arranged on hot water storage tank (2) upper and lower, and gas flow sensor is arranged on gas
Flow control valve (15) is internal；Control panel can arrange water temperature in solar thermal collector (1), monitors hot water storage tank (2) in real time
Middle water level, water temperature, have water level display function, have into water surpass water temperature and super water-level alarm instruction, can be artificial by control
Panel inputs corresponding weather data (WD), chilled water flow information (LF), natural gas temperature information (TM), gas component
Information (GC), natural pressure force information (PT), gas discharge information (FR)；Information transferring element by processor (E-1,
E-2, E-3, E-4) constitute, control parts by Flux Valve Control device (a), hot water flow regulation valve (6), chilled water
Flow control valve (10,26), natural gas flow adjustable valve (15) form.
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| CN201410795525.9A CN104611080B (en) | 2014-12-19 | 2014-12-19 | A kind of gas hydrate slurry liquid integrated utilization device and method |
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| CN105331411B (en) * | 2015-11-23 | 2018-01-05 | 北京建筑大学 | A kind of Fast back-projection algorithm device and method of energy-saving gas hydrates |
| CN108439541B (en) * | 2018-03-20 | 2020-10-09 | 常州大学 | Method for natural gas peak regulation and water purification by using hydrate |
| CN108728197B (en) * | 2018-08-06 | 2023-11-14 | 西南石油大学 | Oilfield associated gas recovery device and method |
| CN110345384B (en) * | 2019-08-20 | 2024-03-26 | 西南石油大学 | Shale gas hydrate slurry rapid transferring and unloading device and method |
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| CN101037938A (en) * | 2007-04-25 | 2007-09-19 | 大连理工大学 | Method for mining gas hydrate using solar heating and device |
| US20130224841A1 (en) * | 2012-02-29 | 2013-08-29 | Charles Bliss | Method for establishing synergism between renewable energy production and fossil energy production |
| CN104152202A (en) * | 2014-08-08 | 2014-11-19 | 辽宁石油化工大学 | Natural gas hydrate slurry decomposing method and device based on solar energy technology |
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