CN203240279U - Vortex self-heating natural gas pressure regulating system - Google Patents
Vortex self-heating natural gas pressure regulating system Download PDFInfo
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- CN203240279U CN203240279U CN 201320173060 CN201320173060U CN203240279U CN 203240279 U CN203240279 U CN 203240279U CN 201320173060 CN201320173060 CN 201320173060 CN 201320173060 U CN201320173060 U CN 201320173060U CN 203240279 U CN203240279 U CN 203240279U
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Abstract
The utility model relates to a vortex self-heating natural gas pressure regulating system. The system comprises monitoring pressure regulating valves and self-heating vortex pipes, a plurality of branch pipes which are connected in parallel are respectively provided with the monitoring pressure regulating valve and the self-heating vortex pipe which are sequentially connected with the branch pipe. Cold flow outlets of all the self-heating vortex pipes are converged into a whole body through pipelines, and the whole body is communicated with a first gas distribution valve and a second gas distribution valve which are connected in parallel. Heat flow outlets of all the self-heating vortex pipes are converged into a whole body through pipelines, and the whole body is communicated with a temperature exchanger. The hot gas outlet of the temperature exchanger is communicated with the inlet of a material separator. The liquid outlet of the material separator is communicated with a liquid discharge control valve. The gas outlet of the material separator, the cold gas outlet of the temperature exchanger and the outlet of a cold exchanger are converged into a whole body through pipelines, and the whole body is communicated with a first pressure regulating valve and a second pressure regulating valve which are connected sequentially. The self-heating vortex pipes are used for pressure regulating, meanwhile the problem of ice blockage can be effectively solved, an external heating device is not required, energy resources are saved, safety and reliability are realized, and the technical process is low in fault rate.
Description
Technical field
The utility model relates to a kind of voltage-regulating system, relates in particular to a kind of eddy current self-heating natural gas voltage-regulating system.
Background technique
When the step-down of natural moral stream because joule--Thomson effect, gas temperature after the step-down can reduce, divide with restructuring owing to generally all contain a certain proportion of moisture in the rock gas, block up when very easily forming ice behind the reducing pressure by regulating flow and under the lower situation of ambient temperature, with line clogging.At present, existing traditional natural gas pressure regulating system is comprised of annexes such as heater, pressure regulator valve group and related pressure tables, use the on-line heating device in advance natural gas temperature to be raise, even to be unlikely to form ice under larger temperature drop and the relatively low ambient temperature situations stifled so that the gas after the pressure regulation is loaded with.Because the on-line heating device needs a large amount of external heat sources that energy is provided, a large amount of energy consumptions have increased operating cost.As: the flow of 7400Nm3/h, be depressured to 0.4MPa by 3.5MPa, temperature is 3～20 ℃ before the pressure regulation, and gas temperature is set in Δ T=5 ℃ behind the pressure regulator valve, and the about 30KW of required heater power if use electric heating, then consumes 24 * 104 degree electricity every year approximately.
The model utility content
Technical problem to be solved in the utility model is for the deficiencies in the prior art, provides that a kind of energy-conserving and environment-protective, cost are low, compact structure, easy care, flexibility and adaptable safe and reliable eddy current self-heating natural gas voltage-regulating system.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of eddy current self-heating natural gas voltage-regulating system comprises several monitoring pressure regulator valves, several self-heating vortex tubes, the first gas distributing valve, the second gas distributing valve, cold-exchange, temperature exchanger, material separator, the first pressure regulator valve, the second pressure regulator valve and discharge opeing control valve;
The upstream delivery pipe is communicated with several arms in parallel, described every arm is provided with successively monitoring pressure regulator valve and the self-heating vortex tube that connects, described self-heating vortex tube comprises cold flow outlet and hot-fluid outlet, and the cold flow outlet of described all self-heating vortex tubes converges to a place by pipeline and is communicated with the first gas distributing valve that is connected side by side and the second gas distributing valve; The hot-fluid outlet of described all self-heating vortex tubes converges to a place by pipeline and is communicated with temperature exchanger; The heat outlet of described temperature exchanger is communicated with the entrance of material separator; The liquid outlet of described material separator is communicated with the discharge opeing control valve; The gas outlet of described material separator, the cold air outlet of temperature exchanger are connected with cold-exchange that outlet converges to a place and the first pressure regulator valve that is connected successively by pipeline and the second pressure regulator valve is communicated with.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, the quantity of the self-heating vortex tube of described connection arranged side by side is decided according to the tolerance size of input system.
Further, described monitoring pressure regulator valve signal source is its downstream pressure, and the first pressure regulator valve signal source is its upstream pressure, and the second pressure regulator valve signal source is its downstream pressure.
Further, described cold-exchange adopt with the mode of ambient air exchange energy or with near the mode of natural gas line exchange energy.
The beneficial effects of the utility model are:
1) the utility model utilize the self-heating vortex tube have resistance to pressure strong, separate the characteristics such as decompression efficient height, two-phase separation, noise are little, when realizing pressure regulation, realization is to the heating of gas, replaced heater, need not external heat source, energy-conserving and environment-protective, operating cost is low; 2) equipment becomes sled assembling, compact structure; 3) system is non-maintaining, rapidly the start-stop car; 4) practical, according to tolerance and pressure requirement, the ratio by the first gas distributing valve and the second gas distributing valve are regulated the eddy current hot and cold stream can substitute traditional natural gas pressure regulating device; 5) strong adaptability, according to traffic demand, by adjusting self-heating vortex tube shunt circuit quantity, major station field, field, small station can both adapt to; 6) safe and reliable, the totally-enclosed operation of whole system is without potential safety hazard; 7) moisture and the restructuring that can further isolate in the upstream gas divide, and make gas downstream poorer; 8) be easy to design and install or existing system is transformed.
Description of drawings
Fig. 1 is the structural drawing of a kind of eddy current self-heating natural gas voltage-regulating system described in the utility model;
Fig. 2 is the working principle schematic representation of a kind of self-heating vortex tube described in the utility model.
In the accompanying drawing, the list of parts of each label representative is as follows:
1, monitoring pressure regulator valve, 2, the self-heating vortex tube, the 3, first gas distributing valve, 4, the second gas distributing valve, 5, cold-exchange, 6, temperature exchanger, 7, material separator, the 8, first pressure regulator valve, the 9, second pressure regulator valve, 10, discharge opeing control valve, 2-0, vortex tube body, 2-1, cold flow outlet, 2-2, hot-fluid outlet, 2-3, gas access, 2-4, nozzle, 2-5, the vortex chamber, 2-6, vortex tube, 2-7, modulating valve.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
As shown in Figure 1, a kind of eddy current self-heating natural gas voltage-regulating system comprises several monitoring pressure regulator valves 1, several self-heating vortex tubes 2, the first gas distributing valve 3, the second gas distributing valve 4, cold-exchange 5, temperature exchanger 6, material separator 7, the first pressure regulator valve 8, the second pressure regulator valve 9 and discharge opeing control valve 10;
The upstream delivery pipe is communicated with several arms in parallel, described every arm is provided with successively monitoring pressure regulator valve 1 and the self-heating vortex tube 2 that connects, described self-heating vortex tube 2 comprises cold flow outlet 2-1 and hot-fluid outlet 2-2, and the cold flow outlet 2-1 of described all self-heating vortex tubes 2 converges to a place by pipeline and is communicated with the first gas distributing valve 3 that is connected side by side and the second gas distributing valve 4; The hot-fluid outlet 2-2 of described all self-heating vortex tubes 2 converges to a place by pipeline and is communicated with temperature exchanger 6; The heat outlet of described temperature exchanger 6 is communicated with the entrance of material separator 7; The liquid outlet of described material separator 7 is communicated with discharge opeing control valve 10; The outlet that the cold air outlet of the gas outlet of described material separator 7, temperature exchanger 6 is connected with cold-exchange converges to a place by pipeline and is communicated with the first pressure regulator valve 8 that is connected successively and the second pressure regulator valve 9.
Wherein, described monitoring pressure regulator valve 1 signal source is its downstream pressure, and the first pressure regulator valve 8 signal sources are its upstream pressure, and the second pressure regulator valve 9 signal sources are its downstream pressure.
Wherein, described cold-exchange 5 both can use and the ambient air exchange, also can exchange with near natural gas line (relying on the ethylene glycol heat-exchanging loop).
As shown in Figure 2, described self-heating eddy current 2 comprises vortex tube body 2-0, and described vortex tube body is provided with a gas access 2-3, and one or more nozzle 2-4 is fixed at 2-3 place, described gas access; Described gas access 2-3 is communicated with the 2-5 of vortex chamber of vortex tube body 2-0 inside, the end of the described 2-5 of vortex chamber connects cold flow outlet 2-1, the other end connects a vortex tube 2-6, and the end of described vortex tube 2-6 is hot-fluid outlet 2-2, and described hot-fluid outlet 2-2 place is provided with a modulating valve 2-7.
During work, pressurized gas expands when gas access 2-3 sprays into the 2-5 of vortex chamber through one or more nozzle 2-4, tangentially enter vortex tube 2-6, form the swirling body of High Rotation Speed, swirling body is along the end motion of vortex tube 2-6 tube wall thermotropism outflow opening 2-2 direction, owing to be subject to the effect of tube wall frictional force, swirling body speed die-offs, pressure decreased produces a large amount of heat energy simultaneously.Reach the position of modulating valve 2-7 when swirling body after, discharge the part hot-fluid, 2-2 discharges from the hot-fluid outlet, another part is conditioned valve 2-7 and pushes up back, move in the other direction along vortex tube 2-6 center, form a less reverse swirling body (being cold flow), cold flow flow to cold flow outlet 2-1 and discharges.Its principle is according to the law of conservation of angular momentum, the angular velocity of inboard swirling body is higher than the angular velocity of outside swirling body, it is same angular velocity motion that frictional force between two swirling bodies makes gas reduction, cause the internal layer swirling body to slow down and outer swirling body is accelerated, inboard swirling body has lost part kinetic energy, drop in temperature, outer swirling body have received the energy of internal layer swirling body, and temperature rises.One high pressure draught produces one terribly cold cold flow at tube hub after self-heating vortex tube 2 reduced pressure treatment like this, produces one awfully hot hot-fluid at skin.Because self-heating vortex tube 2 interior strong centrifugal actions, the cold flow at center is dry gas, the all liq that outer high-temperature heat flux has then concentrated vortex tube effect (containing throttle effect) to produce, all liquid state all are present in the high-temperature heat flux like this, although cold flow point is low, but wherein do not contain liquid, in course of conveying, separate like this and transmit, it is stifled that the cold flow that contains liquid high-temperature heat flux and drying all is difficult for forming ice, and do not need any external heat source that energy is provided, this has fundamentally overcome the stifled phenomenon of the existing natural gas pressure regulating anti-stagnant ice of system's use heater, has saved the energy; In addition, can by the modulating valve 2-7 at control hot-fluid outlet 2-2 place, can regulate the hot and cold stream ratio, thereby realize different cold and hot separation temperatures.
Self-heating vortex tube 2 is through particular design, adopt anti-self ice stifled from Thermal structures design, adopt level and smooth efficient and anticorrosive high voltage bearing eddy current runner design, be different from the conventional vortex tube design of traditional little withstand voltage, inefficient, single phase separation and high noisy, the employed self-heating vortex tube of the utility model resistance to pressure is strong, the step-down separation effect is high, low, the two-phase separation of noise.
The below briefly introduces the working principle of described eddy current self-heating natural gas voltage-regulating system:
During work, upstream gas is assigned to (quantity of arm determines according to tolerance side by side) on some the arms of system by delivery pipe, the monitoring pressure regulator valve 1 of the high-pressure natural gas of upstream without preheating by on every arm stablized gas pressure, then send into self-heating vortex tube 2, rock gas after the voltage stabilizing enters self-heating vortex tube 2 experience without the stifled decompression of ice and carries out energy separation, form independently one cold flow and one hot-fluid, the cold flow of all self-heating vortex tubes 2 pools one cold flow, the hot-fluid of all self-heating vortex tubes 2 pools one hot-fluid, wherein cold flow is divided into two strands by the first gas distributing valve 3 and the second gas distributing valve 4, the hot-fluid that one cold flow wherein and self-heating eddy current 2 pipes produce carries out temperature exchange in temperature exchanger 6, another strand cold flow enters cold-exchange 5 release portion colds, two strands of cold flows converge the whole intensification of realization mutually with the hot-fluid that material separator 7 gas outlets are discharged afterwards, then carry out the pressure adjustment through the first pressure regulator valve 8 and the second modulating valve 9; The hot-fluid that self-heating vortex tube 2 produces converges the rear temperature exchanger 6 of directly sending into and carries out temperature exchange with a part of cold flow, hot-fluid after the temperature exchange is then sent into material separator 7, hot-fluid, moisture and heavy component are separated, moisture and heavy component then emit by discharge opeing control valve 10, hot-fluid then converges with the cold flow that cold-exchange 5 and temperature exchanger 6 are discharged, through fed downstream operation after the first pressure regulator valve 8 and 9 pressure regulation of the second pressure regulator valve.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. eddy current self-heating natural gas voltage-regulating system, it is characterized in that, comprise several monitoring pressure regulator valves (1), several self-heating vortex tubes (2), the first gas distributing valve (3), the second gas distributing valve (4), cold-exchange (5), temperature exchanger (6), material separator (7), the first pressure regulator valve (8), the second pressure regulator valve (9) and discharge opeing control valve (10);
The upstream delivery pipe is communicated with several arms in parallel, described every arm is provided with a monitoring pressure regulator valve (1) and the self-heating vortex tube (2) that connects successively, described self-heating vortex tube (2) comprises cold flow outlet (2-1) and hot-fluid outlet (2-2), and the cold flow outlet (2-1) of described all self-heating vortex tubes (2) converges to a place by pipeline and is communicated with the first gas distributing valve (3) that is connected side by side and the second gas distributing valve (4); The hot-fluid outlet (2-2) of described all self-heating vortex tubes (2) converges to a place by pipeline and is communicated with temperature exchanger (6); The heat outlet of described temperature exchanger (6) is communicated with the entrance of material separator (7); The liquid outlet of described material separator (7) is communicated with discharge opeing control valve (10); The cold air outlet of the gas outlet of described material separator (7), temperature exchanger (6) is connected 5 with cold-exchange) outlet converge to a place and the first pressure regulator valve (8) that is connected successively by pipeline and the second pressure regulator valve (9) is communicated with.
2. described a kind of eddy current self-heating natural gas voltage-regulating system according to claim 1 is characterized in that, the quantity of the self-heating vortex tube (2) of described connection arranged side by side is decided according to the tolerance size of input system.
3. described a kind of eddy current self-heating natural gas voltage-regulating system according to claim 1, it is characterized in that, described monitoring pressure regulator valve (1) signal source is its downstream pressure, and the first pressure regulator valve (8) signal source is its upstream pressure, and the second pressure regulator valve (9) signal source is its downstream pressure.
4. described a kind of eddy current self-heating natural gas voltage-regulating system according to claim 1 is characterized in that, described cold-exchange (5) adopt with the mode of ambient air exchange energy or with near the mode of natural gas line exchange energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173060 CN203240279U (en) | 2013-04-09 | 2013-04-09 | Vortex self-heating natural gas pressure regulating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173060 CN203240279U (en) | 2013-04-09 | 2013-04-09 | Vortex self-heating natural gas pressure regulating system |
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| CN203240279U true CN203240279U (en) | 2013-10-16 |
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| CN 201320173060 Expired - Lifetime CN203240279U (en) | 2013-04-09 | 2013-04-09 | Vortex self-heating natural gas pressure regulating system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197569A (en) * | 2014-08-28 | 2014-12-10 | 中国海洋石油总公司 | Intelligent double-vortex-tube refrigerating and heating system |
| CN107965667A (en) * | 2017-11-09 | 2018-04-27 | 大连理工大学 | It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself |
| CN108071939A (en) * | 2017-11-09 | 2018-05-25 | 大连理工大学 | It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure regulating gas system of heat using storage tank pressure itself |
| CN112985855A (en) * | 2019-12-17 | 2021-06-18 | 中国石油天然气股份有限公司 | Test system for natural gas heating efficiency of vortex tube |
| US20220241825A1 (en) * | 2021-02-01 | 2022-08-04 | Saudi Arabian Oil Company | Hydrate Mitigation in a Pipeline with Vortex Tubes |
-
2013
- 2013-04-09 CN CN 201320173060 patent/CN203240279U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197569A (en) * | 2014-08-28 | 2014-12-10 | 中国海洋石油总公司 | Intelligent double-vortex-tube refrigerating and heating system |
| CN107965667A (en) * | 2017-11-09 | 2018-04-27 | 大连理工大学 | It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself |
| CN108071939A (en) * | 2017-11-09 | 2018-05-25 | 大连理工大学 | It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure regulating gas system of heat using storage tank pressure itself |
| CN107965667B (en) * | 2017-11-09 | 2019-08-20 | 大连理工大学 | It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself |
| CN108071939B (en) * | 2017-11-09 | 2019-08-20 | 大连理工大学 | It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure regulating gas system of heat using storage tank pressure itself |
| CN112985855A (en) * | 2019-12-17 | 2021-06-18 | 中国石油天然气股份有限公司 | Test system for natural gas heating efficiency of vortex tube |
| CN112985855B (en) * | 2019-12-17 | 2022-08-02 | 中国石油天然气股份有限公司 | Test system for natural gas heating efficiency of vortex tube |
| US20220241825A1 (en) * | 2021-02-01 | 2022-08-04 | Saudi Arabian Oil Company | Hydrate Mitigation in a Pipeline with Vortex Tubes |
| US11998959B2 (en) * | 2021-02-01 | 2024-06-04 | Saudi Arabian Oil Company | Hydrate mitigation in a pipeline with vortex tubes |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |
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| CX01 | Expiry of patent term |