CN203082532U - Absorbed natural gas quick desorbing device - Google Patents
Absorbed natural gas quick desorbing device Download PDFInfo
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- CN203082532U CN203082532U CN 201320069546 CN201320069546U CN203082532U CN 203082532 U CN203082532 U CN 203082532U CN 201320069546 CN201320069546 CN 201320069546 CN 201320069546 U CN201320069546 U CN 201320069546U CN 203082532 U CN203082532 U CN 203082532U
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Abstract
The utility model discloses an absorbed natural gas quick desorbing device which comprises a sealed tank body, wherein an air inlet valve, an air outlet valve, a temperature gauge and a pressure meter are arranged on the tank body, an absorbing medium is filled in the tank body, an interlayer is arranged on the wall of the tank body and is internally provided with a heating pipe, and a plurality of phase change heat storing rods made of phase change materials are arranged in the absorbing medium. According to the absorbed natural gas quick desorbing device, the heat is absorbed in an inflating process by using the phase change heat storing rods and then stored so that the temperature in the tank is reduced and the absorbing amount is increased; and in a deflating process, namely, desorbing process, when the temperature in the tank is reduced, the phase change heat storing rods release heat and the desorption of natural gas is maintained, the heating pipe or other heat sources provide heat after the heat in the phase change heat storing rods is consumed so that the desorption is continuously completed, and thus energy consumed in the desorption process is less, the desorption speed is high and the desorption is thoroughly carried out, the maximum utilization rate of the heat is realized in the whole process, and the natural gas is enabled to be supplied to a consumer stably and reliably.
Description
Technical field
The utility model relates to a kind of absorbed natural gas desorption apparatus, relates in particular to the absorbed natural gas fast desorption device that a kind of desorption rate is fast, energy consumption is low.
Background technique
Along with the quick consumption of fuel such as oil, coal, and rugged environment weather day by day, as greenhouse effect etc., rock gas (main nail alkane) obtains paying much attention to this year.The China's natural gas aboundresources, the whole nation has 14 greater than the coal-seam gas basin that contains of 5,000 hundred million m3, and buried depth 2000m is about 36,000,000,000,000 m3 with shallow coal-seam gas geological resource amount.1000m accounts for 38.8%, 28.8% and 32.4% of national coal bed gas resource geology total amount respectively with the coal-seam gas geological resource amount of shallow, 1000-1500m and 1500-2000m.At present, about storage, transportation and the use of rock gas, mainly contain three kinds of approach: compressed natural gas (CNG), LNG Liquefied natural gas (LNG) and absorbed natural gas (ANG).CNG gas storage pressure height (20-25 MPa) needs expensive multistage compressor, and energy consumption is big, and reservoir vessel needs high pressure resistant, from great, has certain risk.LNG needs cryogenic refrigeration, the energy consumption height, and the maintaining of gas storage facility is complicated, the liquefaction process complexity, equipment manufacturing cost height, operating cost are also higher.In addition, in city gas supply, regulate day inhomogeneously with gas with hour inhomogeneous mainly rely on large-size spherical tank (pressure store generally is no more than 1 MPa) with gas, metal consumption is big, the cost height.Absorbed natural gas (ANG) then is a kind of better approach that addresses the above problem, and utilizes the ANG technology of lower pressure (3.0-6.0 MPa) absorption natural gas-storing to become better and approaching perfection day by day in recent years, shows its competitive capacity just gradually.The ANG purposes is very extensive, except being used for the car-mounted device air feed, can also be used for sub-district life air feed, the rock gas storage of gas company etc.
Yet, after the absorption transportation is finished, before using coal-seam gas, need carry out desorb to gas.The absorption of gas is exothermic process, and the desorb of gas just is the process of heat absorption on the contrary.Therefore, ANG can emit a large amount of heat in the process that fills, and makes the interior temperature of gas cylinder raise, and influences adsorption effect; In the process of desorb, owing to heat release ANG gas cylinder temperature reduces, thereby reduce the desorption rate of rock gas, and make desorb thorough inadequately simultaneously, influence client end and use; Though the method that has adopted external heat source to heat up can expend the energy first, second heating assurance on opportunity needs skill, is not easy to use.
The model utility content
The purpose of this utility model provides the absorbed natural gas fast desorption device that a kind of desorption rate is fast, energy consumption is low with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Absorbed natural gas fast desorption device described in the utility model comprises the tank body of a sealing, suction valve, gas outlet valve, thermometer and pressure gauge are installed on the described tank body, be filled with adsorbing medium in the described tank body, described tank wall is provided with interlayer, is provided with heating pipe in the described interlayer; Be provided with the many phase-transition heat-storage rods of making by phase-change material in the described adsorbing medium.
Phase-change material (PCM-Phase Change Material, be called for short PCM) is meant and varies with temperature and change form and the material of latent heat can be provided.Phase-change material by solid-state become liquid state or become solid-state process by liquid state be called phase transition process, at this moment phase-change material will absorb or discharge a large amount of latent heat.
Phase-change material mainly comprises inorganic PCM, organic PCM and compound PCM three classes, and mineral-type PCM mainly contains crystalline hydrate salt, molten salts, metal or alloy class etc.; Organic class PCM mainly comprises paraffin, acetic acid and other organic substance; Compound PCM comprises multiple material, and it can effectively overcome the shortcoming of single inorganic matter or the existence of organic substance phase-change heat-storage material, can improve the effect of phase-change material again and expand its application area, uses wider.
The utility model adopts the effect of phase-transition heat-storage rod to be: rock gas is the meeting heat release when filling, and heat release raises a jar interior temperature, can reduce the adsorption efficiency of rock gas, and the phase-transition heat-storage rod can absorb heat automatically and accumulate, and is that a jar interior temperature is consistent; Can absorb heat during the rock gas desorb, a jar interior temperature is reduced, can reduce the desorption efficiency of rock gas, the automatic heat release of phase-transition heat-storage rod meeting this moment is consistent a jar interior temperature, keeps desorption rate.After the heat dissipation in the phase-transition heat-storage rod is intact, if also do not finish desorb, just open heating pipe or introduce other thermal source, keep a jar interior temperature.
Particularly, described phase-transition heat-storage rod is four, evenly is arranged in the described adsorbing medium, and four described phase-transition heat-storage rods are parallel to each other.
Self-relieving safety valve when further, also superpressure being installed on the described tank body.
The outer wall corresponding with described interlayer is provided with external thermal source interface on the described tank wall.
The beneficial effects of the utility model are:
The utility model utilizes the phase-transition heat-storage rod to absorb heat in gas replenishment process and accumulates, and a jar interior temperature is reduced, and increases extent of adsorption; In venting is in the desorption process, when temperature reduces in jar, the rock gas desorb is kept in the heat release of phase-transition heat-storage rod, after exhausting, heat in the phase-transition heat-storage rod just provide heat to continue to finish desorb by heating pipe or other thermal source, so the energy that consumes in desorption process is few, and desorption rate is fast, desorb is thorough, and whole process has realized the peak use rate of heat, has guaranteed that the rock gas of client end is supplied with reliable and stable.
Description of drawings
Fig. 1 is the perspective structure schematic representation of absorbed natural gas fast desorption device described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, absorbed natural gas fast desorption device described in the utility model comprises the tank body 4 of a sealing, suction valve 10, gas outlet valve 3, thermometer 2, pressure gauge 9 and safety valve 1 are installed on the tank body 4, be filled with adsorbing medium 5 in the tank body 4, tank wall is provided with interlayer 8, is provided with heating pipe 7 in the interlayer 8; Evenly being provided with four 6, four phase-transition heat-storage rods 6 of phase-transition heat-storage rod of being made by phase-change material in the adsorbing medium 5 is parallel to each other; Outer wall corresponding with interlayer 8 on the tank wall is provided with external thermal source interface (not shown), be convenient to connect where necessary outside high-temperature gas for jar in heat up.Safety valve 1 is releasing pressure automatically when superpressure, guarantees safety.
In the said structure, thermometer 2 and pressure gauge 9 are conventional standard piece;
Safety valve 1 is conventional Direct spring loaded safety valve;
The inlet pipeline that is connected with suction valve 10 gos deep into the bottom in the tank body 4, is convenient to filling of gas;
Adsorbing medium 5 is for including but not limited in active carbon, petroleum coke, molecular sieve and the bentonite clay one or more;
The material of phase-transition heat-storage rod 6 is to include but not limited to a kind of in inorganic heat-accumulating material, organic heat-accumulating material and the composite heat storage material;
External thermal source is one or more in hot water, vehicle exhaust, industrial hot water and the industrial waste gas that includes but not limited to radiator.
First characteristics of the present utility model are that employing phase-transition heat-storage rod 6 fully utilizes the heat in the ANG filling process, keeps the ANG desorption rate, guarantees that the rock gas of client end is supplied with.
Second characteristic of the present utility model are, quicken the ANG desorb with phase-transition heat-storage rod 6, can eliminate heat release causes in the filling process intensification adverse effect to rock gas absorption, also can eliminate in the desorption process adverse effect of the caused low temperature of heat absorption, realize the maximum utilization of heat desorption rate.
The 3rd characteristics of the present utility model are, quicken the ANG desorbs with phase-transition heat-storage rod 6, after the heat release of phase-transition heat-storage rod 6 savings is intact, can thermal source is provided or introduces other thermal source by external thermal source interface by heating pipe 7, keep the desorption rate of ANG.
The 4th characteristics of the present utility model are that tank body 4 is provided with the self-relieving safety valve 1 of superpressure, reduces the danger of ANG filling process.
The 5th characteristics of the present utility model are that interlayer 8 spendable external thermals source are extensive, can make full use of various used heat waste gas according to actual conditions, avoid the waste of resource.
In conjunction with Fig. 1, specify with several specific embodiments below:
Embodiment 1:
Choosing active carbon is adsorbing medium 5, and being pre-filled in 20 carbon steels is tank body 4 inside of material; Choose inorganic calcium chloride hexahydrate and be made as phase-transition heat-storage rod 6, assign in the adsorbing medium 5 at interval.
ANG fills with desorption process as follows:
Close gas outlet valve 3, connect air inlet duct, open suction valve 10,, when pressure reaches 3.5MPa, close suction valve 10, finish gas filling by the ANG gas flow of pressure gauge 9 readings control institute can; Simultaneously phase-transition heat-storage rod 6 undergoes phase transition along with filling thermal discharge, and heat is accumulated;
When ANG is used in desorb, connect outlet pipe, slowly open gas outlet valve 3, coal-seam gas is desorb progressively, is delivered to using end; Along with the carrying out of desorb, phase-transition heat-storage rod 6 undergoes phase transition according to temperature, progressively the heat release of being accumulated is come out;
After 6 amount of stored heat of phase-transition heat-storage rod exhaust, be thermal source with the hot water in the radiator, introduce in the interlayer 8 by external thermal source interface, keep the temperature in the tank body 4, guarantee the desorption rate of ANG;
After the whole desorbs of coal-seam gas, package unit returned again fill.
Embodiment 2:
Adsorbing medium is a molecular sieve, and all the other are with embodiment 1.
Embodiment 3:
Adsorbing medium is a petroleum coke, and all the other are with embodiment 1.
Embodiment 4:
Heat-accumulating material is organic high density polyethylene (HDPE), and all the other are with embodiment 1.
Embodiment 5:
Heat-accumulating material is compound typing paraffin ball, and all the other are with embodiment 1.
Embodiment 6:
With the automobile exhaust gas is the thermal source of chuck heat exchange, and all the other are with embodiment 1.
The foregoing description is a preferred version of the present utility model, does not limit claim of the present utility model, and all equivalence enforcement of the present utility model or change technological schemes of not breaking away from all should be included in the rights protection scope of the present utility model.
Claims (4)
1. absorbed natural gas fast desorption device, the tank body that comprises a sealing is equipped with suction valve, gas outlet valve, thermometer and pressure gauge on the described tank body, be filled with adsorbing medium in the described tank body, described tank wall is provided with interlayer, is provided with heating pipe in the described interlayer; It is characterized in that: be provided with the many phase-transition heat-storage rods of making by phase-change material in the described adsorbing medium.
2. absorbed natural gas fast desorption device according to claim 1 is characterized in that: described phase-transition heat-storage rod is four, evenly is arranged in the described adsorbing medium, and four described phase-transition heat-storage rods are parallel to each other.
3. absorbed natural gas fast desorption device according to claim 1 and 2 is characterized in that: self-relieving safety valve when also superpressure being installed on the described tank body.
4. absorbed natural gas fast desorption device according to claim 1 is characterized in that: the outer wall corresponding with described interlayer is provided with external thermal source interface on the described tank wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069546 CN203082532U (en) | 2013-02-06 | 2013-02-06 | Absorbed natural gas quick desorbing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069546 CN203082532U (en) | 2013-02-06 | 2013-02-06 | Absorbed natural gas quick desorbing device |
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| CN203082532U true CN203082532U (en) | 2013-07-24 |
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| CN 201320069546 Expired - Lifetime CN203082532U (en) | 2013-02-06 | 2013-02-06 | Absorbed natural gas quick desorbing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015928A (en) * | 2016-07-01 | 2016-10-12 | 宁夏宝塔石化科技实业发展有限公司 | Low-pressure adsorption natural gas storage tank |
| CN106287215A (en) * | 2016-09-27 | 2017-01-04 | 北京市燃气集团有限责任公司 | The ANG of a kind of double-layer metal structure adsorbs storage tank |
| CN106693605A (en) * | 2017-01-26 | 2017-05-24 | 上海聚宸新能源科技有限公司 | Adsorptive regeneration device with solid-liquid phase change matters and adsorptive regeneration process |
| DE102015120384B4 (en) | 2015-11-25 | 2022-08-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Storage device and method for isobaric storage of a storage fluid |
-
2013
- 2013-02-06 CN CN 201320069546 patent/CN203082532U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015120384B4 (en) | 2015-11-25 | 2022-08-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Storage device and method for isobaric storage of a storage fluid |
| CN106015928A (en) * | 2016-07-01 | 2016-10-12 | 宁夏宝塔石化科技实业发展有限公司 | Low-pressure adsorption natural gas storage tank |
| CN106287215A (en) * | 2016-09-27 | 2017-01-04 | 北京市燃气集团有限责任公司 | The ANG of a kind of double-layer metal structure adsorbs storage tank |
| CN106693605A (en) * | 2017-01-26 | 2017-05-24 | 上海聚宸新能源科技有限公司 | Adsorptive regeneration device with solid-liquid phase change matters and adsorptive regeneration process |
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