CN203811502U - Gas content measuring instrument - Google Patents
Gas content measuring instrument Download PDFInfo
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- CN203811502U CN203811502U CN201420149087.4U CN201420149087U CN203811502U CN 203811502 U CN203811502 U CN 203811502U CN 201420149087 U CN201420149087 U CN 201420149087U CN 203811502 U CN203811502 U CN 203811502U
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- gas
- gas flow
- content measuring
- pipeline
- air content
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Abstract
The utility model provides a gas content measuring instrument which comprises a desorbing tank and an acquiring and processing device, wherein the desorbing tank is accommodated in a constant-temperature water bath device; the desorbing tank is sequentially connected with a gas flow meter, an electromagnetic valve and a gas acquirer; an indication lamp, a temperature sensor and a pressure sensor are arranged on a pipeline between the desorbing tank and the gas flow meter; the acquiring and processing device is electrically connected with the indication lamp, the temperature sensor, the pressure sensor, the gas flow meter and the electromagnetic valve respectively. The gas content measuring instrument is capable of carrying out automatic measurement and recording according to a specified time interval, thereby avoiding errors caused by manual operation, and ensuring an accurate measurement result; the gas flow meter meets the requirement of a flow velocity of 0.03-400sccm, and is high in precision; two-way control is performed by the electromagnetic valve, the two-way electromagnetic valve is closed when the gas flow is less than a measured value in a specified range, and is opened when the flow meets a certain requirement, so that a measurement result when the gas flow is low is accurate.
Description
Technical field
The utility model relates to field of measuring technique, specifically for measuring a kind of air content measuring apparatus of coal seam or shale air content.
Background technology
Shale gas, coal-seam gas are to compose to exist a kind of in shale and coal seam to be absorption, to dissociate or the rock gas of dissolved state.In conventional gas reservoir, generally be mainly free gas and solution gas, substantially there is no adsorbed gas, and in the unconventional gas reservoir such as shale and coal seam, ADSORPTION STATE rock gas is prevalent in various Minerals And Rocks, for shale gas and coal-seam gas, in shale, air content can reach 20%-80%, and coal bed gas content is more up to 80%-99%.In Minerals And Rocks, the size of air content is directly connected to the DEVELOPMENT PROSPECT of shale gas and coal-seam gas, want effectively evaluating shale gas and bed gas reservoir stock number, air content is a requisite parameter, combine use with reservoir pressure and adsorption isothermal, with regard to measurable gas deliverability, determine drilling well distribution and mining type.
Chinese patent < < gas content data collecting system for coal layer > >, patent No. CN200820122855.1, announced a kind of gas content data collecting system for coal layer, computing machine, data acquisition control system, temperature sensor, pressure transducer, high-precision gas flowmeter, high-speed ultrasonic ripple instrument, printer, consist of, core is by flowmeter automatic acquisition desorption data; Chinese patent < < high precision air content tester > >, patent No. CN201120464973.2, announced a kind of high precision air content tester, comprise sealable tank and gas collection measuring cylinder, described gas collection measuring cylinder comprises the graduated conic transparent cylindrical shell of mark and is provided with air hole and the cylinder end of osculum, the air hole of gas collection measuring cylinder is communicated with the sealing of the vent port of sealable tank, main by adopting gas collection measuring cylinder to measure gas desorption quantity; Chinese patent < < air content proving installation > >, patent No. CN201220083314.9, a kind of air content proving installation is disclosed, sample storing unit, gas volume measurement mechanism and computing machine, consist of, described gas volume measurement mechanism comprises air intake opening, gas-holder, band tubing, volumetric displacement meter, fluid reservoir, lifter and lifting rope.Be mainly used in measuring the liquid volume of flowing through, and transfer data to computing machine.
There is following problem in above patent:
1, when coal seam or shale air content are when low, the gas volume that sample desorbs is little, and flowmeter accuracy is not high; Adopt gas collection measuring cylinder to measure the error that increases manual operation, and inconvenient operation, efficiency is low.
2, when desorb to a certain extent, when gas flow diminishes, adopt above patent mode, measurement result is not accurate enough, error increases.
Utility model content
The utility model proposes a kind of air content measuring apparatus, to solve the problems such as in prior art, flowmeter accuracy is low, error is large, efficiency is low.
The technical solution of the utility model is achieved in that
An air content measuring apparatus, comprises solution cucurbitula, and described solution cucurbitula is placed in constant temperature water bath apparatus; Described solution cucurbitula is connected with gas meter, solenoid valve and gas collector in turn by pipeline; Pipeline between described solution cucurbitula and described gas meter is provided with pilot lamp, temperature sensor and pressure transducer;
This measuring instrument also comprises acquisition processing device, and described acquisition processing device is electrically connected to described pilot lamp, temperature sensor, pressure transducer, gas meter and solenoid valve respectively.
Further, the tank connected side of described pipeline and desorb is provided with entrance rapid-acting coupling.
Further, the side that described pipeline is connected with gas collecting device is provided with outlet rapid-acting coupling.
Further, described pilot lamp comprises the lamp of two kinds of different colours.
Further, the flow velocity of described gas meter is 0.03～400sccm.
The beneficial effects of the utility model are:
(1) time interval in accordance with regulations measures automatically, and record, has avoided the error of manual operation, and measurement result is more accurate; (2) gas meter meets the requirement of 0.03～400sccm flow velocity, and precision is higher; (3) solenoid valve two-way is controlled, and when gas flow is less than the measured value of specialized range, closes two-way electromagnetic valve, until flow meets certain requirements, then opens, the measurement result while making air content low is more accurate.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of an embodiment of the utility model.
In figure:
1, constant temperature water bath apparatus; 2, separate cucurbitula; 3, entrance rapid-acting coupling; 4, pilot lamp; 5, temperature sensor; 6, pressure transducer; 7, gas meter; 8, solenoid valve; 9, outlet rapid-acting coupling; 10, gas collecting device; 11, pipeline; 12, acquisition processing device.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the air content measuring apparatus in the present embodiment, comprises and separates cucurbitula 2, described solution cucurbitula 2 is placed in constant temperature water bath apparatus 1; Described solution cucurbitula 2 is connected with gas meter 7, solenoid valve 8 and gas collector 10 in turn by pipeline 11; Pipeline 11 between described solution cucurbitula 2 and described gas meter 7 is provided with pilot lamp 4, temperature sensor 5 and pressure transducer 6; This measuring instrument also comprises acquisition processing device 12, and described acquisition processing device 12 is electrically connected to described pilot lamp 4, temperature sensor 5, pressure transducer 6, gas meter 7 and solenoid valve 8 respectively.
In the present embodiment, described pipeline 11 is provided with entrance rapid-acting coupling 3 with the side that solution cucurbitula 2 is connected, and the side that described pipeline 11 is connected with gas collecting device 10 is provided with outlet rapid-acting coupling 9.
Described pilot lamp 4 comprises the lamp of two kinds of different colours, adopts the lamp of red and green two kinds of colors in the present embodiment.The flow velocity of described gas meter 7 is 0.03～400sccm.
The specific works process of the present embodiment is as follows:
The first, connecting line 11 initialization: setting constant temperature water bath apparatus 1 is desorption temperature, and the solution cucurbitula 2 that sample is housed is placed in constant temperature water bath apparatus 1.Connect and separate cucurbitula 2 outlet and follow-up test pipelines 11, keep solenoid valve 8 to open and close rapidly afterwards for 1～3 second, if pilot lamp 4 sends out a warning, pipeline 11 is obstructed, checks pipeline 11; If pilot lamp 4 gives a green light, pipeline 11 is unobstructed, records temperature, pressure and gas flow in pipeline 11 simultaneously, and this is 0 moment point for testing constantly.
The second, record desorb parameter: open solenoid valve 8, according to certain time interval, by temperature sensor 5, pressure transducer 6 and gas meter 7, record temperature value, force value and the gas flow value in pipeline 11.
The 3rd, judgement: after the desorb regular hour, separating gas flow in cucurbitula 2 can slowly diminish, when not reaching the measured value of specialized range 0.03～400sccm, shut electromagnetic valve 8, until gas flow meets the measured value of regulation, then opens solenoid valve 8, record temperature value, force value and gas flow in pipeline 11.
The 4th, repeat the step of the 3rd step, until desorption gas volume is while being less than specified value, natural desorb finishes, and stops test.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an air content measuring apparatus, is characterized in that: comprise solution cucurbitula, described solution cucurbitula is placed in constant temperature water bath apparatus; Described solution cucurbitula is connected with gas meter, solenoid valve and gas collector in turn by pipeline; Pipeline between described solution cucurbitula and described gas meter is provided with pilot lamp, temperature sensor and pressure transducer;
This measuring instrument also comprises acquisition processing device, and described acquisition processing device is electrically connected to described pilot lamp, temperature sensor, pressure transducer, gas meter and solenoid valve respectively.
2. a kind of air content measuring apparatus as claimed in claim 1, is characterized in that: the tank connected side of described pipeline and desorb is provided with entrance rapid-acting coupling.
3. a kind of air content measuring apparatus as claimed in claim 1, is characterized in that: the side that described pipeline is connected with gas collecting device is provided with outlet rapid-acting coupling.
4. a kind of air content measuring apparatus as claimed in claim 1, is characterized in that: described pilot lamp comprises the lamp of two kinds of different colours.
5. a kind of air content measuring apparatus as claimed in claim 1, is characterized in that: the flow velocity of described gas meter is 0.03～400sccm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149087.4U CN203811502U (en) | 2014-03-28 | 2014-03-28 | Gas content measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149087.4U CN203811502U (en) | 2014-03-28 | 2014-03-28 | Gas content measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811502U true CN203811502U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420149087.4U Expired - Fee Related CN203811502U (en) | 2014-03-28 | 2014-03-28 | Gas content measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203811502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179805A (en) * | 2019-07-05 | 2021-01-05 | 中国石油天然气股份有限公司 | Shale gas desorption testing device and system |
| CN112697641A (en) * | 2020-12-08 | 2021-04-23 | 武汉库仑特科技有限公司 | Reciprocating gas collection type shale desorption test analyzer |
-
2014
- 2014-03-28 CN CN201420149087.4U patent/CN203811502U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179805A (en) * | 2019-07-05 | 2021-01-05 | 中国石油天然气股份有限公司 | Shale gas desorption testing device and system |
| CN112697641A (en) * | 2020-12-08 | 2021-04-23 | 武汉库仑特科技有限公司 | Reciprocating gas collection type shale desorption test analyzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20170328 |
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| CF01 | Termination of patent right due to non-payment of annual fee |