CN206523331U - The collection device of bubble gas in a kind of GEOTHERMAL WATER - Google Patents

Abstract

The utility model belongs to gas content and isotopics determine field, a kind of collection device of bubble gas in GEOTHERMAL WATER is specifically disclosed, the device includes tap water containers, first ball valve, film is advised, second ball valve, molecular sieve trap, triple channel Ball valve, syringe, it is inverted glass funnel and sampler, in the gas outlet insertion tap water containers of first ball valve, first ball valve air inlet, the gas outlet of second ball valve point is by the outlet with sampler, entrance is connected, the measurement mouthful that film advises with sampler is connected, the gas outlet of molecular sieve trap, the air inlet of air inlet respectively with the second ball valve, the passage connection of triple channel Ball valve, the another two passage of triple channel Ball valve respectively with syringe, glass funnel is connected.Gas humidity is big during method of the present utility model solves collection, it is impossible to the problem of accurate instruction is collected in gas flow；And higher than one atmospheric pressure of the gas pressure collected, solve the problem of storage process is easily by air pollution.

Description

A device for collecting gas bubbles in geothermal water

technical field

The utility model belongs to the field of gas content and isotope composition measurement, in particular to a collection device for gas bubbles in geothermal water.

Background technique

The deep-source gas that passes through the interior of the earth mainly escapes in two ways, one is to escape directly from the earth's solid rock cracks or fault zones, and the other is to escape in the form of bubbles through geothermal water, the former is directly connected to the corresponding For the sampling device, just flush the gas into the sampling bottle. Since the latter escapes in the form of air bubbles through the surface water source, it is difficult to directly connect to the sampling device for direct collection, so the sampling process is more difficult.

For the gas that escapes through the geothermal water in the form of bubbles, the drainage method is basically used in China to collect it. This method has two disadvantages: 1) The humidity of the gas collected by the drainage method is relatively high, and there is a lot of water vapor in the gas. During the test, water vapor was mixed into the test instrument, polluting the instrument and causing difficulty in vacuuming the instrument; 2) The collected gas cannot accurately indicate the pressure and volume, which is difficult for the quantitative measurement of the gas content; 3) The gas collected by the drainage method The air pressure is less than the standard atmospheric pressure, and the atmosphere is very likely to infiltrate the collected gas during storage and cause pollution.

Contents of the invention

The purpose of this utility model is to provide a collection device for gas bubbles in geothermal water, which solves the problem that the gas humidity in the collection process is high and cannot accurately indicate the amount of collected gas; and the pressure of the collected gas is higher than one atmospheric pressure, which solves the problem of The storage process is prone to air pollution.

The technical solution for realizing the purpose of this utility model: a collection device for gas bubbles in geothermal water, the device includes a tap water container, a first ball valve, a membrane gauge, a second ball valve, a molecular sieve trap, a three-channel ball valve, a syringe, an inverted glass Funnel and sampler, the air outlet of the first ball valve is inserted into the tap water container, the air inlet of the first ball valve and the air outlet of the second ball valve are connected with the outlet and inlet of the sampler, and the film gauge is connected with the measuring port of the sampler, The gas outlet and the gas inlet of the molecular sieve trap are respectively connected with the gas inlet of the second ball valve and one channel of the three-channel ball valve, and the other two channels of the three-channel ball valve are respectively connected with the syringe and the glass funnel.

The three-way ball valve comprises a three-way ball valve channel one, a three-way ball valve common channel, and a three-way ball valve channel two. The common channel of the ball valve is connected to the outlet of the syringe, and the second channel of the three-way ball valve of the three-channel ball valve is connected to the silicone tube.

The air outlet of the first ball valve is provided with a silicone tube, and the silicone tube is inserted into the tap water container.

The air outlet of the first ball valve is connected to the silicone tube through a quick connector.

The air inlet of the first ball valve and the air outlet of the second ball valve are respectively connected to the outlet and inlet of the sampler through a metal ferrule joint.

The common channel of the ball valve of the three-channel ball valve is connected to the outlet of the syringe through a quick joint, and the second channel of the three-way ball valve of the three-channel ball valve is connected to the silicone tube through the quick joint, and the silicone tube is connected to the straight pipe section of the glass funnel through the quick joint connect.

Beneficial technical effects of the utility model: the utility model has simple structure, convenient operation and strong practicability. Molecular sieves can fully absorb water vapor before the gas sampler, and dry the gas to be collected; the gas sampler is a regular cylindrical pipeline, which can calculate its precise volume. Measure the pressure of the collected gas, and then obtain the amount of collected gas; the three-way ball valve can realize the smooth switching of the gas channel, so that the collected gas first passes through the syringe, and then switches to the sampler, and then the gas can be transferred in a reciprocating cycle until the air pressure in the sampler It is greater than one atmospheric pressure to avoid atmospheric pollution during storage; the silicone tube at the outlet of the first ball valve is inserted under the liquid level of the tap water container to act as a dynamic seal to prevent the back diffusion of the atmosphere from polluting the sample; the outlet of the sampler is inserted into ordinary tap water to achieve dynamic It is sealed to prevent the atmosphere from diffusing from the outlet of the sampler to the sampler during the process of transferring the gas from the syringe to the sampler, polluting the gas to be collected.

Description of drawings

Fig. 1 is the structural representation of the air bubble gas sample collection device in geothermal water provided by the utility model;

Fig. 2 is the schematic diagram of the bubble gas collection method in the geothermal water provided by the utility model,

Wherein, Fig. 2a is the process of transferring the gas in the geothermal water to the injector,

Figure 2b is the process of converting the channel of the three-way ball valve to transfer the gas in the syringe to the sampler.

In Figure 1:

1 is the tap water container, 2 is the first ball valve, 3 is the high-precision film gauge, 4 is the second ball valve, 5 is the molecular sieve trap, 6 is the three-channel ball valve, 7 is the first channel of the three-way ball valve, and 8 is the common channel of the ball valve. 9 is a large-capacity syringe, 10 is a three-way ball valve channel two, 11 is an inverted glass funnel, 12 is gas to be collected, 13 is a geothermal water source, and 14 is a sampler.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

As shown in Figure 1, the utility model provides a collection device for gas bubbles in geothermal water, the device includes a common tap water container 1, a first ball valve 2, a high-precision film gauge 3, a second ball valve 4, a molecular sieve trap 5. Three-way ball valve 6, large-capacity syringe 9, inverted glass funnel 11 and sampler 14, wherein the three-way ball valve 6 includes three-way ball valve channel one 7, three-way ball valve common channel 8, and three-way ball valve channel two 10 .

The air outlet of the first ball valve 2 is connected to the silicone tube through a quick connector, and the silicone tube is inserted into the tap water container 1, and the air outlet of the first ball valve 2 and the air outlet of the second ball valve 4 are connected to the sampler 14 through a metal ferrule joint respectively. The outlet and the inlet are connected, the high-precision film gauge 3 is connected to the measuring port of the sampler 14 through the metal ferrule joint, the gas outlet and the air inlet of the molecular sieve trap 5 are respectively connected to the air inlet of the second ball valve 4 through a metal ferrule 1. The ball valve passage one 7 of the three-channel ball valve 6 is connected, the ball valve common passage 8 of the three-channel ball valve 6 is connected to the outlet of the large-capacity syringe 9 through a quick connector, and the ball valve passage two 10 of the three-channel ball valve 6 is connected to the silica gel through a quick connector The silicone tube is connected with the straight tube section of the glass funnel 11 through a quick connector. The glass funnel 11 is inverted within a source of geothermal water 13 containing the gas 12 to be collected.

Metal ferrule joints are Swagelok stainless steel joints; quick joints are spring-driven, and metal sheet card pipe joints; the first ball valve 2, the second ball valve 4, and the three-channel ball valve 6 are PTFE ball-sealed valves; high-precision film gauge 3 It is a product of Inficon Company, the range is 0.1-1000Torr, and the accuracy is 0.15% of the reading.

As shown in Figures 1 and 2, a method for collecting gas bubbles in geothermal water provided by the utility model comprises the following steps:

Step 1. Return the piston of the syringe 9 to its original position, place the glass funnel 11 under the water surface of the geothermal water source 13 containing the gas 12 to be collected (i.e. air bubbles), insert the gas outlet of the first ball valve 2 into the liquid surface of the ordinary tap water bottle 1 through a silicone tube Down.

Step 2, open the first ball valve 2 and the second ball valve 4, adjust the three-channel ball valve 6, so that the ball valve channel two 10 of the three-channel ball valve 6 communicates with the common channel 8;

Step 3, pull the piston of the syringe 9, pump the gas 12 to be collected into the syringe 9, adjust the three-channel ball valve 6, and make the ball valve channel one 7 of the three-channel ball valve 6 communicate with the common channel 8;

Step 4: Press down the plunger of the syringe 9, fill the sampler 14 with the gas to be collected 12 through the molecular sieve trap 5, and pass it into the tap water container 1;

The gas of syringe 9 in step 3, step 4 should be charged in the sampler 14 as soon as possible, prevents syringe 9 piston from leaking because of poor sealing performance;

Step 5, cyclically execute step 2, step 3 and step 4 several times to fully drive away the air in the sampler 14;

The number of cycles to execute step 2, step 3 and step 4 is usually 3 to 5 times.

Molecular sieve trap 5 should be replaced with a new molecular sieve trap 5 after each sample is taken to prevent supersaturated molecular sieve trap 5 from absorbing water;

Step 6, close the first ball valve 2, pull the piston of the syringe 9, pump the gas 12 to be collected into the syringe 9, adjust the three-channel ball valve 6, and make the ball valve channel one 7 of the three-channel ball valve 6 communicate with the common channel 8;

Step 7. Press the plunger of the syringe 9 to transfer the gas 12 to be collected into the sampler 14;

Step 8. By observing the reading of the high-precision film gauge 3, execute steps 6 and 7 in a loop until the gas pressure of the sampler 14 is greater than 760 Torr, and record the reading of the high-precision film gauge 3 at this time. When the high-precision film gauge 3 When the reading is higher than one atmospheric pressure, the collection of the gas to be collected 12 with air bubbles in the geothermal water source 13 is completed.

Step 9. After the collection is completed, close the second ball valve 4, remove the ferrule joints at the air outlet of the first ball valve 2 and the air inlet of the second ball valve 4, and store the first ball valve 2, the second ball valve 4 and the sampler 14 at room temperature to be tested.

The device and method are also applicable to the collection of gas bubbles in oil wells.

The utility model has been described in detail above in conjunction with the accompanying drawings and embodiments, but the utility model is not limited to the above-mentioned embodiments, within the knowledge of those of ordinary skill in the art, it can also Make various changes below. The content that does not describe in detail in the utility model all can adopt prior art.

Claims (6)

1. the collection device of bubble gas in a kind of GEOTHERMAL WATER, it is characterised in that：The device includes tap water containers (1), first Ball valve (2), film rule (3), the second ball valve (4), molecular sieve trap (5), triple channel Ball valve (6), syringe (9), inversion glass In funnel (11) and sampler (14), the gas outlet insertion tap water containers (1) of the first ball valve (2), the first ball valve (2) air inlet Mouthful, the outlet respectively with sampler (14) of the gas outlet of the second ball valve (4), entrance be connected, film rule (3) and sampler (14) Measure mouth connection, the gas outlet of molecular sieve trap (5), air inlet, the triple channel Ball valve of air inlet respectively with the second ball valve (4) (6) passage connection, the another two passage of triple channel Ball valve (6) connects with syringe (9), glass funnel (11) respectively Connect.

2. the collection device of bubble gas in a kind of GEOTHERMAL WATER according to claim 1, it is characterised in that：Described threeway Road Ball valve (6) includes tee ball valve passage one (7), tee ball valve public passage (8), tee ball valve passage two (10), molecule Tee ball valve passage one (7) of the air inlet of sieve trap (5) respectively with triple channel Ball valve (6) is connected, triple channel Ball valve (6) Ball valve public passage (8) is connected with the outlet of syringe (9), the tee ball valve passage two (10) and silicon of triple channel Ball valve (6) Sebific duct is connected.

3. the collection device of bubble gas in a kind of GEOTHERMAL WATER according to claim 2, it is characterised in that：Described first It is provided with the gas outlet of ball valve (2) in silicone tube, silicone tube insertion tap water containers (1).

4. the collection device of bubble gas in a kind of GEOTHERMAL WATER according to claim 3, it is characterised in that：Described first The gas outlet of ball valve (2) connects silicone tube by snap joint.

5. the collection device of bubble gas in a kind of GEOTHERMAL WATER according to claim 4, it is characterised in that：Described first Ball valve (2) air inlet, the second ball valve (4) gas outlet each via a metal ferrule joint and sampler (14) outlet, Entrance is connected.

6. the collection device of bubble gas in a kind of GEOTHERMAL WATER according to claim 5, it is characterised in that：Described threeway The ball valve public passage (8) of road Ball valve (6) is connected by snap joint with the outlet of syringe (9), triple channel Ball valve (6) Tee ball valve passage two (10) be connected by snap joint with silicone tube, the silicone tube passes through snap joint and glass funnel (11) straight length connection.