CN204829089U - Solve frozen swelling device of natural gas line with solar energy air hot water module - Google Patents
Solve frozen swelling device of natural gas line with solar energy air hot water module Download PDFInfo
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- CN204829089U CN204829089U CN201520579092.3U CN201520579092U CN204829089U CN 204829089 U CN204829089 U CN 204829089U CN 201520579092 U CN201520579092 U CN 201520579092U CN 204829089 U CN204829089 U CN 204829089U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The utility model relates to a solve frozen swelling device of natural gas line with solar energy air hot water module, including hot -air - natural gas heat transfer chamber, solar energy air hot water module, air - hot water heat exchanger, storage water tank and controller, natural gas line locates hot -air - natural gas heat transfer intracavity, air inlet, the gas outlet in hot -air - natural gas heat transfer chamber are passed through the control valve and are corresponded gas outlet, the air inlet of connecting air - hot water heat exchanger and solar energy air hot water module respectively, air - hot water heat exchanger's delivery port is connected to the water inlet of solar energy air hot water module, the delivery port of storage water tank is connected to air - hot water heat exchanger's water inlet, the delivery port of solar energy air hot water module is connected to the water inlet of storage water tank, controller connection control valve. Compared with the prior art, the utility model discloses simple structure, low cost, maintenance cost is lower in the operation, and solution natural gas line's that can be fine frozen swelling problem.
Description
Technical field
The utility model relates to the problem of frost heave in natural gas line transmission, especially relates to the device that a kind of solar air hot-water module solves natural gas line frost heave.
Background technique
At present, mostly adopt pipeline transport in the transport of hinterland rock gas, for the transport capability improving pipeline need raise the pressure of rock gas, and then through the station step-down of natural gas pressure regulating door, just enter urban pipe network and supply industry and occupy domestic gas.In the process of the reducing pressure by regulating flow at pressure regulation door station, can with the reduction of pressure according to the temperature of joule-Thomson effect rock gas, temperature can reduction sharply.According to statistics, the pressure of natural gas line often reduces 1MPa, and temperature can reduce by 4 ~ 5 DEG C.Such as, before natural air valve, temperature is 13.1 DEG C, and pressure is 5.3MPa, and after reducing pressure by regulating flow, pressure is 2.5MPa, and temperature is then 1 DEG C.When ambient temperature reduces, particularly when winter, the natural gas line after pressure regulation is just in subzero and runs, and this just easily causes the frost heaving of natural gas line.
There is the problems such as buried natural gas line can cause neighbouring land upheaval, the valve body of pressure regulator valve is lifted off a seat, pipeline is out of shape under effect of stress, flange connections or the pipeline welding place leakage of frost heaving.There is the pipeline of frost heave simultaneously in winter, only could find in spring in the coming year.The threat door station that this can be serious and the safe operation of natural gas line, cause potential safety hazard to transporting of rock gas.
The resourcefulness that tradition solves natural gas line frost heaving adopts electric heater, improves the natural gas temperature after throttling.The natural gas temperature entering buried pipe is in above zero.But this method not only can consume the electric energy of a large amount of high-quality, and electrically heated power used and when enable electric heating and all cannot determine accurately.Other methods solving frost heave also have soil removal and replacement, waterproof and draining in addition, arrange pipe trench etc.Not only engineering work load is large for these methods, somewhat expensive, and does not fundamentally solve the problem of frost heave of natural gas line: make the temperature recovery of rock gas to above zero, this just causes gas downstream pipeline section also frost heave can occur.
Solar air hot-water module can utilize the clean solar radiation energy, in order to add hot air and circulating water.Water and air absorbs solar energy in this solar air hot water heat collecting module in the ordinary course of things, and temperature can reach about 55 DEG C.Its solar radiation utilization ratio is far away higher than solar energy power generating efficiency, and structure is simple, cheap, is convenient to installation and maintenance.Area needed for general solar thermal collector is comparatively large, and unit can be taked to make, and is convenient to transport like this and installs, be convenient to according to actual institute calorific requirement, carries out polylith solar air hot-water module series and parallel connections and uses.Considering these advantages, solar air hot-water module is used for the frost heave solving natural gas line, is a kind of well method.
Chinese patent CN201364061 discloses a kind of heat pipe assembly, comprises multiple heat pipe, and vertically, middle part has the extension connecting upper and lower two ends for described heat pipe upper-end bent, lower end; The closed at both ends of described heat pipe, inner in hollow shape, in described heat pipe, be packaged with the fluid working substance for conducting heat.The heat pipe assembly of this patent needs the position selecting to be arranged on natural gas line, and the heat transfer of what type of not mentioned selection source convection cell working medium is conducted heat.
Model utility content
The purpose of this utility model is exactly to there is the defect that need consume a large amount of high-quality electric energy when overcoming in prior art and adopt electric heating to solve natural gas line problem of frost heave, and provide a kind of solar air hot-water module to solve the device of natural gas line frost heave, structure is simple, with low cost, operation and maintenance cost is lower, and can solve the problem of frost heave of natural gas line.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of solar air hot-water module solves the device of natural gas line frost heave, comprise hot air-heat exchange gas chamber, solar air hot-water module, air-hot water heat exchanger, water storage box and controller, natural gas line is located in hot air-heat exchange gas chamber, the suction port in described hot air-heat exchange gas chamber, air outlet is connected respectively the air outlet of air-hot water heat exchanger and solar air hot-water module by control valve, suction port, the water intake of described solar air hot-water module connects the water outlet of air-hot water heat exchanger, the water intake of described air-hot water heat exchanger connects the water outlet of water storage box, the water intake of described water storage box connects the water outlet of solar air hot-water module, described controller connection control valve.
Described solar air hot-water module comprises housing, the glass cover-plate of housing end face, the thermal insulation layer of housing bottom surface and circulating pipe, described housing is provided with suction port and the air outlet in connection hot air-heat exchange gas chamber, described thermal insulation layer parcel circulating pipe, described circulating pipe is provided with the water intake of connection air-hot water heat exchanger and the water outlet being connected water storage box.
Fin and heat-sink shell is provided with in air passageways between described glass cover-plate and thermal insulation layer.
The outer wall in described hot air-heat exchange gas chamber is provided with thermal insulation layer.
In described air-hot water heat exchanger, water intake is contrary with the direction of suction port and air outlet to the direction of water outlet.
In described hot air-heat exchange gas chamber suction port to the direction of air outlet with natural gas flow in natural gas line to contrary.
Described control valve is three-way valve.
The suction port place in described hot air-heat exchange gas chamber is provided with blower fan.
The water outlet of described water storage box is provided with circulating water pump.
The water inlet of described water storage box is provided with stop valve.
Compared with prior art, the utility model has the following advantages:
1) adopted electrically heated way, be exactly the most significantly consume a large amount of electric energy in the past, uneconomical so also not energy-conservation.Moreover because of the change of gas discharge in the change of ambient temperature and gas pipeline, electrically heated power cannot be calculated accurately and when suitablely enable the problems such as electric heating.The utility model utilizes the heat of solar energy to add hot air and water thus makes the temperature recovery of rock gas, fundamentally solve the problem of frost heave of buried natural gas line, avoid and solved with electric heating the drawback that natural gas line frost heave need consume a large amount of electric energy in the past, improve the Security that pipeline transport rock gas runs at low ambient temperatures.
2) hot water of solar air hot-water module heating simultaneously then can be stored in water storage box, and when hot air is not enough to rise again rock gas, the hot water in available water storage box adds hot air by heat exchanger, improves the temperature of hot air.
3) controller can carry out comprehensive adjustment according to season and local weather, namely to the aperture of solar air hot-water module and air-this two-way of hot water heat exchanger, comprehensive adjustment is carried out to three-way valve, to improve the temperature of hot air, meet the requirement that rock gas is heated up, thus solve the problem of frost heave of the pipeline of rock gas better.
4) air-hot water heat exchanger and hot air-heat exchange gas chamber adopt reverse heat-exchange, so more can improve efficiency of heat exchanger, thus better utilize heat energy to improve the efficiency of whole system.
5) structure is simple, be easy to operation maintenance, fine for solution natural gas line frost heave effect, for natural valve station safe operation, there is good promotional value, be suitable for applying at the door station of long-term generation natural gas line problem of frost heave and area, compared to soil removal and replacement, draining and the measure arranging pipe trench, the utility model engineering work load is than soil removal and replacement and arrange the much little of pipe trench.
6) adopt thermal insulating material to arrange thermal insulation layer, to prevent external heat radiation, improve heat-exchange performance, fin strengthens the disturbance of circulating air to absorb more solar energy simultaneously.
7) adopt heat-sink shell can absorb more solar energy fast, be conducive to the temperature improving air and circulating water, be also conducive to the speed accelerating air and circulating water temperature rising.
8) with air as heat transfer medium, economy, safety and non-corrosiveness and toxicity, this is more conducive to whole system safe operation and easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the structural representation in hot air-heat exchange gas chamber;
Fig. 3 is the structural representation of solar air hot-water module.
In figure: 1, hot air-heat exchange gas chamber, 2, solar air hot-water module, 3, air-hot water heat exchanger, 4, water storage box, 5, three-way valve, 6, blower fan, 7, circulating water pump, 8, stop valve, 9, glass cover-plate, 10, thermal insulation layer, 11, circulating pipe, 12, fin, 13, heat-sink shell, A, air, B, rock gas.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, a kind of solar air hot-water module solves the device of natural gas line frost heave, comprise hot air-heat exchange gas chamber 1, solar air hot-water module 2, air-hot water heat exchanger 3, water storage box 4 and controller, rock gas B pipeline is located in hot air-heat exchange gas chamber 1, the suction port in hot air-heat exchange gas chamber 1, air outlet is connected respectively the air outlet of air-hot water heat exchanger 3 and solar air hot-water module 2 by control valve, suction port, hot air-heat exchange gas chamber 1 air flow to natural gas flow to contrary, the water intake of solar air hot-water module 2 connects the water outlet of air-hot water heat exchanger 3, the water intake of air-hot water heat exchanger 3 connects the water outlet of water storage box 4, the water intake of water storage box 4 connects the water outlet of solar air hot-water module 2, air-hot water heat exchanger 3 air flow is to contrary with water (flow) direction, controller connection control valve.Control valve adopts three-way valve 5, and the suction port place in hot air-heat exchange gas chamber 1 is provided with the blower fan 6 providing power, and the water outlet of water storage box 4 is provided with the circulating water pump 7 providing power.The water inlet of water storage box 4 is provided with stop valve 8.
As shown in Figure 2, the steel frame construction outer wall in hot air-heat exchange gas chamber 1 parcel thermal insulation layer 10, middlely places rock gas B pipeline, forms a closed cavity.Air A enters from one end of airtight cavity, and in cavity, high temperature air A and low temperature natural duct carry out abundant heat exchange, is gone out, enter circuit cycle by the air A after heat exchange from the other end of cavity.In this process, the temperature of rock gas B is promoted.
As shown in Figure 3, solar air hot-water module 2 comprises housing, the glass cover-plate 9 of housing end face, the thermal insulation layer 10 of housing bottom surface and circulating pipe 11, housing is provided with suction port and the air outlet in connection hot air-heat exchange gas chamber 1, thermal insulation layer 10 wraps up circulating pipe 11, and circulating pipe 11 is provided with the water intake of connection air-hot water heat exchanger 3 and the water outlet being connected water storage box 4.Fin 12 and heat-sink shell 13 is provided with in air passageways between glass cover-plate 9 and thermal insulation layer 10.When sunlight is through the glass cover-plate 9 of special processing, Heating Cyclic air A makes its temperature raise, and fin 12 strengthens the disturbance of circulating air A to absorb more solar energy, and the heat-sink shell 13 with specific coatings manyly can absorb solar energy faster.The solar energy of the about Absorbable rod 40% ~ 50% of air A, and remaining solar energy can be recycled water absorption.The object done so better utilizes solar energy more efficiently.Multiple solar air hot-water module 2 serial or parallel connection can be adopted to ensure to make going back up to above zero of rock gas B simultaneously.
Working principle:
When having solar irradiance: air A absorbs solar temperature rising in solar air hot-water module 2, to be entered in the driving effect through small-sized fan 6 by three-way valve 5 by the high temperature air A after heating in the hot air-heat exchange gas chamber 1 surrounded by thermal insulating material, the rock gas B pipeline that the air A of high temperature can heat low temperature makes the temperature of rock gas B raise.Air A after cooled gets back to again solar air hot-water module 2 li, continues to be added thermosetting circulation loop.In above process, the hot water storage heated in solar air hot-water module 2, in hot water tank, is prepared against and is utilized.Three-way valve 5 is to the closedown on air-hot water heat exchanger 3 one tunnel, and air A can only flow to solar air hot-water module 2 by 1 three-way valve 5, then arrives blower fan 6 by three-way valve 5.The road flowing to another three-way valve 5 from air-hot water heat exchanger 3 is also closed.
Solar irradiance more weak or without solar irradiance time: the hot water being stored in water storage box 4 can be utilized to enter air-hot water heat exchanger 3 by the driving effect of small-sized circulating water pump 7, in air-hot water heat exchanger 3, the abundant heat exchange of hot water and air A is to improve the temperature of air A, after heat exchange, water enters solar air hot-water module 2 and is heated, and gets back in hot water tank forming closed circulation through stop valve 8.In above process, three-way valve 5 is closed to a road of solar air hot-water module 2, and air A can only flow to air-hot water heat exchanger 3 by three-way valve 5, then arrives blower fan 6 by another three-way valve 5.The road flowing to another three-way valve 5 from solar air hot-water module 2 is also closed.
Finally, comprehensive adjustment can be carried out according to season and local weather, namely to the aperture of solar air hot-water module 2 and this two-way of air-hot water heat exchanger 3, comprehensive adjustment is carried out to three-way valve 5, to improve the temperature of hot air A, meet the requirement that rock gas B is heated up, thus solve the problem of frost heave of the pipeline of rock gas B better.
Claims (10)
1. one kind solves the device of natural gas line frost heave with solar air hot-water module, it is characterized in that, comprise hot air-heat exchange gas chamber (1), solar air hot-water module (2), air-hot water heat exchanger (3), water storage box (4) and controller, natural gas line is located in hot air-heat exchange gas chamber (1), the suction port of described hot air-heat exchange gas chamber (1), air outlet is connected respectively the air outlet of air-hot water heat exchanger (3) and solar air hot-water module (2) by control valve, suction port, the water intake of described solar air hot-water module (2) connects the water outlet of air-hot water heat exchanger (3), the water intake of described air-hot water heat exchanger (3) connects the water outlet of water storage box (4), the water intake of described water storage box (4) connects the water outlet of solar air hot-water module (2), described controller connection control valve.
2. a kind of solar air hot-water module according to claim 1 solves the device of natural gas line frost heave, it is characterized in that, described solar air hot-water module (2) comprises housing, the glass cover-plate (9) of housing end face, the thermal insulation layer (10) of housing bottom surface and circulating pipe (11), described housing is provided with suction port and the air outlet of connection hot air-heat exchange gas chamber (1), described thermal insulation layer (10) parcel circulating pipe (11), described circulating pipe (11) is provided with the water intake of connection air-hot water heat exchanger (3) and the water outlet being connected water storage box (4).
3. a kind of solar air hot-water module according to claim 2 solves the device of natural gas line frost heave, it is characterized in that, in the air passageways between described glass cover-plate (9) and thermal insulation layer (10), be provided with fin (12) and heat-sink shell (13).
4. a kind of solar air hot-water module according to claim 1 solves the device of natural gas line frost heave, and it is characterized in that, the outer wall of described hot air-heat exchange gas chamber (1) is provided with thermal insulation layer (10).
5. a kind of solar air hot-water module according to claim 1 solves the device of natural gas line frost heave, it is characterized in that, in described air-hot water heat exchanger (3), water intake is contrary with the direction of suction port and air outlet to the direction of water outlet.
6. a kind of solar air hot-water module according to claim 1 solves the device of natural gas line frost heave, it is characterized in that, in described hot air-heat exchange gas chamber (1) suction port to the direction of air outlet with natural gas flow in natural gas line to contrary.
7. a kind of solar air hot-water module according to claim 1 solves the device of natural gas line frost heave, and it is characterized in that, described control valve is three-way valve (5).
8. a kind of solar air hot-water module according to claim 1 solves the device of natural gas line frost heave, and it is characterized in that, the suction port place of described hot air-heat exchange gas chamber (1) is provided with blower fan (6).
9. a kind of solar air hot-water module according to claim 1 solves the device of natural gas line frost heave, and it is characterized in that, the water outlet of described water storage box (4) is provided with circulating water pump (7).
10. a kind of solar air hot-water module according to claim 1 solves the device of natural gas line frost heave, and it is characterized in that, the water inlet of described water storage box (4) is provided with stop valve (8).
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| CN201520579092.3U CN204829089U (en) | 2015-08-04 | 2015-08-04 | Solve frozen swelling device of natural gas line with solar energy air hot water module |
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| CN201520579092.3U CN204829089U (en) | 2015-08-04 | 2015-08-04 | Solve frozen swelling device of natural gas line with solar energy air hot water module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123367A (en) * | 2016-06-23 | 2016-11-16 | 上海电力学院 | A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy |
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2015
- 2015-08-04 CN CN201520579092.3U patent/CN204829089U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123367A (en) * | 2016-06-23 | 2016-11-16 | 上海电力学院 | A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy |
| CN106123367B (en) * | 2016-06-23 | 2019-02-22 | 上海电力学院 | A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy |
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