CN202562910U - Isothermal adsorption test system - Google Patents

Isothermal adsorption test system Download PDF

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Publication number
CN202562910U
CN202562910U CN2012202324675U CN201220232467U CN202562910U CN 202562910 U CN202562910 U CN 202562910U CN 2012202324675 U CN2012202324675 U CN 2012202324675U CN 201220232467 U CN201220232467 U CN 201220232467U CN 202562910 U CN202562910 U CN 202562910U
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CN
China
Prior art keywords
valve
tank
pressure
sample pot
sample
Prior art date
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Expired - Fee Related
Application number
CN2012202324675U
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Chinese (zh)
Inventor
郭景晶
叶剑波
胡威伟
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BEIJING ROMTEK TECHNOLOGY AND DEVELOPMENT Co Ltd
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BEIJING ROMTEK TECHNOLOGY AND DEVELOPMENT Co Ltd
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Priority to CN2012202324675U priority Critical patent/CN202562910U/en
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Publication of CN202562910U publication Critical patent/CN202562910U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an isothermal adsorption test system. The isothermal adsorption test system comprises a mechanical execution system, a booster pump, a constant-temperature oil bath control system and a data acquisition system, wherein the mechanical execution system comprises a pneumatic switching valve which is respectively connected with a reference tank and a sample tank; the other end of the reference tank and the other end of the sample tank are respectively connected with a pressure transmitter; a data acquisition device is connected between the pressure transmitter connected with the reference tank and the pressure transmitter connected with the sample tank; a storage cavity is arranged inside the sample tank; a refrigerator, a heater, a transfer pump and a thermograph are arranged in the constant-temperature oil bath; the thermograph controls the refrigerator and the heater to regulate temperature; and the transfer pump controls liquid inside the constant-temperature oil bath to circulate. The isothermal adsorption test system provided by the utility model figures out the sizes of the reference cavity and the sample cavity by virtue of pressure change, and then deduces the volume of gas adsorbed by absorbable substances. Moreover, the isothermal adsorption test system adopts a multi-stage control technology to achieve safe driving of special gas.

Description

Isothermal absorption test macro
Technical field
The utility model relates to unconventional gas exploration engineering field, relates in particular to unconventional gas isothermal absorption test macro.
Background technology
Like coal-seam gas as a kind of typical unconventional rock gas; In unconventional gas, have certain representativeness, it is all inequality that its fortune is gathered mechanism and gas reservoir pattern and conventional gas, and these have all directly restricted the process of China's coal gas industryization; Utilize high temperature, high pressure core test analytical technology to be the basis; Take into full account the adsorption-desorption characteristics of coal-seam gas, the grafting conventional gas becomes to hide analogue technique, designs and develops pneumatolytic Tibetan, coal seam simulation system and has important scientific meaning.
At present, the modeling effort work of carrying out petroleum gas is more, as utilizes the HTHP analogue experiment installation to carry out the water-soluble convection experiment of rock gas, and the experiment of oil gas water seepage flow etc.Employed experimental facilities is to manufacture and design to the petroleum gas characteristics.Yet coal-seam gas is different from petroleum gas, and it is all inequality that its fortune is gathered mechanism and gas reservoir pattern and conventional oil rock gas, and the petroleum gas experimental facilities is difficult to be applied to the experimental technique field of coal-seam gas.
Engineering technical personnel can not be applied to the problem in the coal-seam gas experiment for solving the petroleum gas simulation experiment device, have developed experimental facilities to the characteristics of coal-seam gas.Like the Chinese patent publication number is 200420093572.0, and it discloses a kind of analogue device for coal layer pneumatolytic deposit, and this equipment is made up of gas boosting pump, constant temperature cabinet, control system and computer acquisition disposal system.Characteristic is that multi-functional rock core storehouse is arranged in constant temperature cabinet, and there are pressure transducer and temperature sensor in two ends, rock core storehouse, and inlet end adopts pipeline, valve to link to each other with the gas boosting pump; For the rock core storehouse provides simulation test pressure; The simulation different temperatures, different pressures, the preservation condition of coal-seam gas is utilized sensor and computer acquisition experimental data under the different hydrodynamic condition; Compare, analyze, the migration mode of research coal-seam gas and the capping ability of gas reservoir.
The effect of the analogue device for coal layer pneumatolytic deposit of aforementioned open file is the migration mode of research coal-seam gas and the capping ability of gas reservoir, has certain limitation in technical field; And its mode of operation is automatically controlled mode, and directly there is very high potential safety hazard in unconventional gas with drives as special gas; In addition, the plunger type supercharge pump is that the highest withstand voltage of sample pressurization is 20mpa, and the force value that environment is hidden on the simulation of most of unconventional gases ground is often greater than 20mpa; And the constant temperature cabinet highest temperature is that 100 ℃ of temperature difference are difficult to control etc., and the data that all might cause obtaining are unstable, deviation etc. is arranged.
Coal-seam gas is the model as a kind of unconventional gas as stated, is the embodiment as a kind of reference gas, does not directly restrict the description of instructions to unconventional gas.
The utility model content
The purpose of the utility model is to provide a kind of novel isothermal absorption test macro, addresses the above problem.
To achieve these goals, the technical scheme of the utility model employing is following:
A kind of isothermal absorption test macro; Comprise mechanical execution system, supercharge pump, thermostatic oil bath control system and data acquisition system (DAS); Said mechanical execution system comprises shuttle valve, first pressure regulator valve, two shut-off valves, two safety valve, two second pressure regulator valves, at least three pressure units and at least one pneumatic transfer valve; Said two shut-off valve one ends are connected with source of the gas respectively; The other end is connected with said two safety valve respectively, and two input ends of said shuttle valve are connected with said two safety valve respectively, and the output terminal of said shuttle valve is connected with said supercharge pump input end; Two output terminals of said supercharge pump are connected with said two second pressure regulator valves respectively; One of them said second pressure regulator valve is connected with compressed air source through said first pressure regulator valve, and said second pressure regulator valve of another one is connected with said pneumatic transfer valve through said pressure unit, and said pneumatic transfer valve is connected with sample pot respectively with reference to jar;
The said other end with reference to jar is connected a pressure unit respectively with the said sample pot other end; With the tank connected said pressure unit of said reference and with the tank connected said pressure unit of sample between be connected a said data collector, be provided with in the said sample pot storage chamber;
Be provided with refrigerator, well heater, transfer pump and thermometer in the said thermostatic oil bath, said refrigerator controlled by said thermometer and said well heater carries out adjustment, and the liquid that said transfer pump is controlled in the said thermostatic oil bath circulates.
Preferably, described thermostatic oil bath temperature can be controlled between 15 degrees centigrade to 95 degrees centigrade.
Preferably, the Double layer lid sealing means is adopted in said storage chamber, is provided with a removable 10-200 purpose screen cloth in the said storage chamber.
Preferably, the quantity of said sample pot is 1-4.
Preferably, said sample pot can isolated operation or operation simultaneously.
Preferably; Said sample pot tank body two ends adopt T type pressure cap to compress end socket, and said end socket is provided with circular trough outward, are provided with in the said circular trough and gather phenyl tetrafluoride pad; The outside has the matrix pressure cap that said T type pressure cap is connected with said sample pot tank body sealing thread; Said matrix pressure cap is connected with high-voltage tube, and when said T type pressure cap compressed said end socket, the inner said tetrafluoro packing ring that gathers of said end socket was close to inner tank wall; Said matrix pressure cap is connected with said sample pot tank body, said high-voltage tube and said sample pot inner sealing.
The beneficial effect of the utility model can be summed up as follows:
The isothermal absorption test macro of the utility model goes out reference cavity, sample cavity volume through the pressure change calculations, derives the volume of the unconventional gas of adsorbable thing absorption again.Employing Multistage Control technology realizes the safety of special gas is driven.
The end cap inside of storage silo one end of the utility model is provided with a 10-200 purpose screen cloth, and the adsorbent storage silo of packing into is carried out the purpose of simulation test, prevents that adsorbable thing from overflowing owing to pressure changes.
The utility model has solved unconventional gas detection single, the problem that the various time cost of equipment is high.
The utility model four-way independent operating, test macro can be supported the independent operating of four-way simultaneously, its operational process independently carries out, and has improved the efficient of carrying out greatly and has saved resources costs.
Description of drawings
Fig. 1 is the entire system structural representation of the utility model;
Fig. 2 is the thermostatic oil bath structural representation of the utility model;
Fig. 3 is the sample pot structural representation of the utility model.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The entire system structural representation of the utility model as shown in Figure 1; The isothermal absorption test macro of the utility model comprises mechanical execution system, supercharge pump, thermostatic oil bath control system and data acquisition system (DAS); Said mechanical execution system comprises two shut-off valves 13, two safety valve 12, shuttle valve 11, first pressure regulator valve 9, two second pressure regulator valves 7, at least three pressure units 2 and at least one pneumatic transfer valve 6; One end of said two shut-off valves 13 is connected with gas B source of the gas with gas A respectively; The other end is connected with said safety valve 12 respectively; Said shuttle valve 11 input ends are connected with said safety valve 12 respectively, and output terminal is connected with said supercharge pump 8, and said supercharge pump 8 other two ends are connected with second pressure regulator valve 7 respectively; One of them second pressure regulator valve 7 is connected with compressed air source 10 through first pressure regulator valve 9; Another one second pressure regulator valve 7 is connected with said pneumatic transfer valve 6 through said pressure unit 2, and said pneumatic transfer valve 6 is connected with reference jar 4, and said pneumatic transfer valve 6 is connected with sample pot 3 through switch valve 5; Saidly be connected a pressure unit 2 respectively with the other end of said sample pot 3 with reference to jars 4, with said with reference to jars 4 said pressure units 2 that are connected and with said pressure unit 2 that sample pot 3 is connected between said data collector 1 of connection.
At first open the shut-off valve 13 of gas B source of the gas 14 during work; Gas B washes the gas circuit of the isothermal absorption test macro of the utility model, and the air in the said gas circuit is got rid of totally, turn-offs the shut-off valve 13 of gas B source of the gas 14 then; Open the shut-off valve 13 of gas A source of the gas 15; Gas A gets into air-channel system, and the experimental gas A in the utility model test can reach 40MPa, and general control mode is difficult to satisfy flammable gases at high pressure control; The utility model adopts the Multistage Control technology, realizes the operation of special gas is driven.
Isothermal absorption test macro goes out reference cavity, sample cavity volume through the pressure change calculations, derives the account form of volume of the unconventional gas of adsorbable thing again.
Data collector 1 mainly comprises Analog Data Acquistion Module, analog data output control module, the setting of thermostatic oil bath temperature and monitoring function module, adopts the America NI LABVIEW of company to carry out data acquisition and pass Computer Processing back as developing instrument.
Fig. 2 is the thermostatic oil bath structural representation of the utility model; Be provided with refrigerator 26, well heater 28, transfer pump 27 and thermometer 29 in the said thermostatic oil bath; Said refrigerator 26 of described thermometer 29 controls and well heater 28 work can be controlled in temperature range+15~+ 95 ℃; Silicone oil 25 is housed in the thermostatic oil bath, and transfer pump 27 control silicone oil circulate, and keep silicone oil 25 temperature equalizations in the thermostatic oil bath, and the working volume of thermostatic oil bath is 100cm*50cm*25cm, can guarantee that 4 sample pots experimentize simultaneously under the room temperature condition being lower than.The thermostatic oil bath of the utility model adopts totally-enclosed compressor group refrigeration, said refrigeration system is provided with overheated, excess current multiple protector.
Like Fig. 3 is the sample pot structural representation of the utility model; Four sample pots 3 and four reference jars 4 are arranged in thermostatic oil bath; Said sample pot 3 and said with reference to jar 4 existence in pairs, said structure with reference to jar 4 is following: said with reference to being provided with high pressure cavity 23 in the jar 4, said high pressure cavity 23 is connected with sample pot 3 employing high-voltage tubes 17 and pneumatic transfer valve 6; For sample pot 3 provides simulated experiment pressure, realize absorption or desorption experiment with reference to jar 4 and sample pot 3; The structure of sample pot 3 is following: said sample pot inside is provided with high pressure chest 23; Be provided with storage chamber 19 in the high pressure chest of said sample pot 3; Storage is filled adsorbable thing in the chamber; Be provided with a 60-80 purpose screen cloth 22 between storage chamber upper pressing cap 20 and the storage chamber lower pressing cap 21, can prevent that adsorbable thing from overflowing owing to pressure changes.The tank body two ends adopt T type pressure cap 18 to compress end socket, and end socket is provided with circular trough outward, are provided with in the said circular trough and gather phenyl tetrafluoride pad; Outside matrix pressure cap 16 is connected T type pressure cap 18 with the tank body sealing thread; Matrix pressure cap 16 is connected with high-voltage tube 17, and when T type pressure cap 18 compresses end socket, end socket is inner gathers the tetrafluoro packing ring and inwall is close to inner tank wall; And simultaneously matrix pressure cap 16 is connected with tank body, play the effect of high-voltage tube 17 and sample pot 3 inner sealings.
Four passages of the utility model can independent operating, and test macro can be supported the independent operating of four-way simultaneously, and its operational process independently carries out, and has improved the efficient carried out greatly and has saved resources costs.
More than through the detailed description of concrete and preferred embodiment the utility model; But those skilled in the art should be understood that; The utility model is not limited to the above embodiment; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement etc., all should be included within the protection domain of the utility model.

Claims (6)

1. an isothermal adsorbs test macro; Comprise mechanical execution system, supercharge pump, thermostatic oil bath control system and data acquisition system (DAS); Said mechanical execution system comprises shuttle valve, first pressure regulator valve, two shut-off valves, two safety valve, two second pressure regulator valves, at least three pressure units and at least one pneumatic transfer valve; Said two shut-off valve one ends are connected with source of the gas respectively; The other end is connected with said two safety valve respectively, and two input ends of said shuttle valve are connected with said two safety valve respectively, and the output terminal of said shuttle valve is connected with said supercharge pump input end; Two output terminals of said supercharge pump are connected with said two second pressure regulator valves respectively; One of them said second pressure regulator valve is connected with compressed air source through said first pressure regulator valve, and said second pressure regulator valve of another one is connected with said pneumatic transfer valve through said pressure unit, and said pneumatic transfer valve is connected with sample pot respectively with reference to jar;
It is characterized in that: the said other end with reference to jar is connected a pressure unit respectively with the said sample pot other end; With the tank connected said pressure unit of said reference and with the tank connected said pressure unit of sample between be connected a said data collector, be provided with in the said sample pot storage chamber;
Be provided with refrigerator, well heater, transfer pump and thermometer in the said thermostatic oil bath, said refrigerator controlled by said thermometer and said well heater carries out adjustment, and the liquid that said transfer pump is controlled in the said thermostatic oil bath circulates.
2. isothermal absorption test macro according to claim 1, it is characterized in that: described thermostatic oil bath temperature can be controlled between 15 degrees centigrade to 95 degrees centigrade.
3. isothermal absorption test macro according to claim 1, it is characterized in that: the Double layer lid sealing means is adopted in said storage chamber, is provided with a removable 10-200 purpose screen cloth in the said storage chamber.
4. isothermal absorption test macro according to claim 1, it is characterized in that: the quantity of said sample pot is 1-4.
5. isothermal absorption test macro according to claim 4 is characterized in that: said sample pot can isolated operation or operation simultaneously.
6. isothermal absorption test macro according to claim 1; It is characterized in that: said sample pot tank body two ends adopt T type pressure cap to compress end socket, and said end socket is provided with circular trough outward, are provided with in the said circular trough and gather phenyl tetrafluoride pad; The outside has the matrix pressure cap that said T type pressure cap is connected with said sample pot tank body sealing thread; Said matrix pressure cap is connected with high-voltage tube, and when said T type pressure cap compressed said end socket, the inner said tetrafluoro packing ring that gathers of said end socket was close to inner tank wall; Said matrix pressure cap is connected with said sample pot tank body, said high-voltage tube and said sample pot inner sealing.
CN2012202324675U 2012-05-22 2012-05-22 Isothermal adsorption test system Expired - Fee Related CN202562910U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012202324675U CN202562910U (en) 2012-05-22 2012-05-22 Isothermal adsorption test system

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Application Number Priority Date Filing Date Title
CN2012202324675U CN202562910U (en) 2012-05-22 2012-05-22 Isothermal adsorption test system

Publications (1)

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Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983552A (en) * 2014-05-27 2014-08-13 中国石油天然气股份有限公司 In-situ adsorption testing device for rock core gas and working method of in-situ adsorption testing device
CN104990827A (en) * 2015-06-15 2015-10-21 北京科技大学 Determining method and device for adsorption quantity of low-volatility organic gas on adsorbing materials
WO2019209125A1 (en) * 2018-04-24 2019-10-31 Charles Martin Chavez Madson Madson wiind turbine system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983552A (en) * 2014-05-27 2014-08-13 中国石油天然气股份有限公司 In-situ adsorption testing device for rock core gas and working method of in-situ adsorption testing device
CN104990827A (en) * 2015-06-15 2015-10-21 北京科技大学 Determining method and device for adsorption quantity of low-volatility organic gas on adsorbing materials
CN104990827B (en) * 2015-06-15 2019-02-01 北京科技大学 The measuring method and equipment of low volatility organic gas adsorbance on the adsorbent material
WO2019209125A1 (en) * 2018-04-24 2019-10-31 Charles Martin Chavez Madson Madson wiind turbine system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121128

Termination date: 20190522