CN218674398U - Soil air auxiliary sampling detection device - Google Patents

Abstract

The utility model provides a soil air assists sample detection device, open inclosed sampling case all around including the lower extreme for collect soil air in inserting soil, be provided with intake pipe and outlet duct on two relative lateral walls of sampling case respectively, intake pipe and outlet duct dock with soil air analysis check out test set respectively, carry out closed cycle through soil air analysis check out test set to the air in the sampling case and detect, the inner chamber of sampling case still is provided with the fan, the fan can carry out the fanning to the soil air of collecting in the sampling case and mix, makes it carry out the misce bene, and rethread intake pipe and outlet duct form closed cycle with soil air analysis check out test set and detect, make soil air indication reflect really, improve data detection's accuracy, reduce the data error.

Description

Soil air auxiliary sampling detection device

Technical Field

The utility model relates to a soil empty gas detection surveys technical field, concretely relates to supplementary sampling test device of soil air.

Background

The soil air is used as an important component of soil, is not only a basic research content of soil science, but also an important environmental factor, and the conditions of the composition, content change and the like of the soil air have important significance on the evaluation of soil physicochemical property and the plant growth process, and are important indexes for the evaluation of soil environmental quality. The collection of soil air is a key link in the evaluation of soil environment quality.

At present, in the prior art, a sealed box cover closed sampling method is generally adopted for soil air sampling to statically collect soil gas, for example, the authorization notice number of CN208060240U discloses a portable soil gas flux sampling device, and a box body with an opening at the lower end is inserted on soil to be detected; and after standing for a period of time, detecting the gas in the box body. For another example, patent application No. CN202110938176.1 discloses a temperature-controlled windproof and light-resistant static box and a gas in-situ collection method, wherein the bottom of the static box is inserted into a soil area to be detected, and sampling is performed through a sampling hole arranged at the upper end of the static box.

However, the prior art disclosed above has the following problems in the sampling process: in a static sealed box, the process of releasing gas from soil is slow, and the released gas is also easily influenced by temperature and humidity in the static sealed box, so that imbalance exists, the indexes contained in the soil air of the upper layer and the lower layer in the sealed box are different, the indication of the soil air cannot be completely and truly reflected, and larger errors are brought to research results.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a soil air auxiliary sampling detection device capable of equalizing soil air in a sealed box and reducing data detection errors.

The utility model provides a soil air assists sample detection device, opens inclosed sampling case all around including the lower extreme, is provided with intake pipe and outlet duct respectively on two relative lateral walls of sampling case, intake pipe and outlet duct dock with soil air analysis check out test set respectively, carry out closed cycle through the air of soil air analysis check out test set in to the sampling case and detect, the inner chamber of sampling case still is provided with the fan, the fan can be to the soil air of sampling incasement collection carry out the fan and move the mixture.

Preferably, the two opposite sides of the sampling box are also provided with limiting plates, and the limiting plates are close to the lower opening of the sampling box so as to limit the depth of the sampling box penetrating into soil.

Preferably, still be provided with the drier on the lateral wall of sampling case and put in the box, the drier is put in the box and can is put in the drier to the sampling case inner chamber to carry out the drying to the air in the sampling case.

Preferably, the mouth of puting in has been seted up on the lateral wall of sampling box, the inboard of sampling box is provided with the sealed cowling, the sealed cowling sets up in the mouth of puting in department, with put in mouthful sealed butt joint all around, forms and put in the passageway, the drier is put in the box and is set up on putting in the passageway, and the drier puts in the box hugs closely the inside wall of sealed cowling all around to along the inner chamber that the sealed cowling slidable penetrated the sampling box, put in the drier.

Preferably, the drier is put in the box and is equipped with the holding tank of placing the drier all around for the closed box body, in the upper end of box body, the holding tank gets into the tip of putting in the passageway near the box body, the width of holding tank is less than the width of seal cover, the drier is put in the box and can be followed the passageway of putting in and move to sampling box inner chamber direction, makes the holding tank pass the seal cover and expose at the inner chamber of sampling box to carry out adsorption and drying to the air in the sampling box, the drier is put in the box when putting in the passageway and outwards moving, can make in the holding tank gets into the seal cover, seals the holding tank through the seal cover, stops dry, when the drier is put in the box and continues outwards moving along the passageway of putting in, can make the holding tank stretch out the lateral wall of sampling box to in order to change and put in the drier.

Preferably, the both sides of sealed cowling transversely are provided with the constant head tank, the both sides that the box was put in to the drier are provided with the reference column, the reference column is close to the drier and puts in the one end that the box got into the input passageway, when the box outwards moved is put in to the drier, the reference column gets into the constant head tank to slide along the constant head tank, put in the box through the constant head tank and carry on spacingly to the drier.

Preferably, sealing strips are arranged around the throwing opening.

Preferably, the bottom of the accommodating groove is provided with a vent hole.

Preferably, a temperature sensor and a humidity sensor are arranged in the sampling box to detect the temperature and the humidity in the sampling box.

Preferably, the top of the sampling box is provided with a handle.

The utility model adopts the above technical scheme, its beneficial effect lies in: the soil air in the sampling box is fanned by arranging the fan in the sampling box, so that the soil air is uniformly mixed, and then the closed-loop circulating detection is formed by the air inlet pipe, the air outlet pipe and the soil air analyzing and detecting equipment, so that the soil air indication is truly reflected, the data detection accuracy is improved, and the data error is reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the sampling box of the utility model.

Fig. 3 is a schematic view of the internal structure of the sampling box of the utility model.

Fig. 4 is a schematic structural view of the desiccant dispensing box of the present invention.

Fig. 5 is a schematic structural view of the desiccant feeding box, wherein the holding tank enters the sampling box.

Fig. 6 is a schematic structural view of the desiccant feeding box, wherein the holding tank enters the sealing cover.

Fig. 7 is a schematic structural view of the desiccant dispensing box extending out of the sampling box.

In the figure: sampling box 10, air inlet pipe 101, air outlet pipe 102, fan 103, handle 104, limiting plate 105, input port 106, sealing cover 107, positioning groove 108, temperature sensor 109, humidity sensor 110, display device 111, sealing strip 112, soil air analysis and detection equipment 20, drying agent input box 30, accommodating groove 301, handle 302, positioning column 303 and vent hole 304.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Please refer to fig. 1 and fig. 3, an embodiment of the present invention provides a soil air auxiliary sampling detection device, which includes a sampling box 10 with a lower end opened and sealed all around for inserting soil air into soil, an air inlet pipe 101 and an air outlet pipe 102 are respectively arranged on two opposite side walls of the sampling box 10, the air inlet pipe 101 and the air outlet pipe 102 are respectively butted with a soil air analysis detection device 20, the air in the sampling box 10 is detected by the soil air analysis detection device 20 in a closed cycle manner, an inner cavity of the sampling box 10 is further provided with a fan 103, and the fan 103 can fan and mix the soil air collected in the sampling box 10.

Specifically, sampling box 10 is airtight with the top all around, and lower extreme open-ended box is preferred to adopt stainless steel, soil air analysis check out test set 20 is a photosynthetic detection appearance, preferred model: the LI-6400XT portable photosynthesis measuring system mainly measures the temperature, humidity and CO of soil air in real time ₂ And H ₂ Indexes such as O concentration, leaf photosynthesis rate, transpiration rate and soil respiration rate; the input of intake pipe 101 and the output of outlet duct 102 set up respectively in the both sides that sampling case 10 is relative, and communicate with the inner chamber of sampling case 10, and be located diagonal position, make the input of intake pipe 101 and the output of outlet duct 102 keep away from as far as possible, the output of intake pipe 101 and outlet duct 102 input are connected with soil air analysis check out test set 20 respectively, during the use, with sampling case 10 open port down, insert in the soil top layer that needs detected, make and form a inclosed space in the box, the air to release in the soil is collected, detect through soil air analysis and detectThe device 20 performs closed-loop circulation detection on soil air in the sampling box 10, the fan 103 in the sampling box 10 is preferably a 12v direct current fan 103 and is arranged in the center of the top in the box body, so that air in the box body can be swept and disturbed, the air in the sampling box 10 is uniformly mixed, the accuracy of detection data is improved, the fan 103 can be powered by an external power supply or a mobile power supply and can be associated with a switch of the soil air analysis detection device 20, and synchronous operation is realized.

Referring to fig. 1 or 2, further, limiting plates 105 are further disposed on two opposite sides of the sampling box 10, the limiting plates 105 are close to the lower opening of the sampling box 10 to limit the depth of the sampling box 10 penetrating into the soil, the depth of the sampling box 10 inserted into the soil is 3-6cm to ensure the tightness of the interior, and in this embodiment, the height of the limiting plates 105 can be adjusted according to the detected soil condition.

With reference to fig. 1, further, a desiccant feeding box 30 is further disposed on the sidewall of the sampling box 10, the desiccant feeding box 30 may feed a desiccant into the inner cavity of the sampling box 10 to dry the air in the sampling box 10, and the desiccant is a physical desiccant bag such as silica gel, calcium chloride, calcium sulfate or minerals, and if the humidity of the air in the sampling box 10 is too high, the desiccant can be fed to adsorb to reduce the humidity.

Referring to fig. 2, 3, 5, 6, and 7, further, a throwing port 106 is formed on a side wall of the sampling box 10, a sealing cover 107 is disposed on an inner side of the sampling box 10, the sealing cover 107 is a cover body with two openings sealed at the periphery, the sealing cover 107 is transversely disposed at the throwing port 106, one end of the opening is opposite to the throwing port 106 and is in sealed butt joint with the periphery of the throwing port 106 to form a throwing channel, the desiccant throwing box 30 is disposed on the throwing channel, the periphery of the desiccant throwing box 30 is tightly attached to an inner side wall of the sealing cover 107, the desiccant throwing box 30 can be moved in the sealing cover 107 by pushing of a hand and penetrates into an inner cavity of the sampling box 10 to throw the desiccant, and upper, lower, left, right, and four end surfaces of the desiccant throwing box are in tight contact with the sealing cover 107, so that intersection of air in the sampling box 10 and outside air can be reduced.

Referring to fig. 4 to 7, further, the periphery of the desiccant dispensing box 30 is a sealed box body, an accommodating groove 301 for accommodating a desiccant is formed in the upper end of the box body, the accommodating groove 301 is close to the end of the box body entering the dispensing channel, the width of the accommodating groove 301 is smaller than the width of the sealing cover 107, a handle 302 is arranged at the other end of the box body and is used for pushing and pulling by hand, the movable desiccant dispensing box 30 moves towards the inner cavity direction of the sampling box 10 along the dispensing channel, so that the accommodating groove 301 accommodating the desiccant passes through the sealing cover 107 and is exposed in the inner cavity of the sampling box 10 to adsorb and dry the air in the sampling box 10, and when the desiccant dispensing box 30 moves outwards along the dispensing channel, the accommodating groove 301 can enter the sealing cover 107, the accommodating groove 301 is shielded and sealed by the sealing cover 107, so that the desiccant in the accommodating groove 301 stops contacting with the air in the sampling box 10 and stops drying; when the desiccant releasing box 30 continues to move outwards along the releasing channel, the holding groove 301 can extend out of the outer side wall of the sampling box 10 so as to facilitate replacement and releasing of the desiccant, and when the holding groove 301 extends out of the outer side wall of the sampling box 10, the end part of the desiccant releasing box 30 is blocked at the releasing port 106 so as to keep the tightness of the sampling box 10 and prevent the air in the sampling box 10 from intersecting with the outside air.

With reference to fig. 4 to 7, furthermore, positioning slots 108 are transversely disposed on two opposite sides of the sealing cover 107, positioning posts 303 are disposed on two opposite sides of the desiccant dispensing box 30, the positioning posts 303 are close to one end of the desiccant dispensing box 30 entering the dispensing channel, when the desiccant dispensing box 30 moves outward, the positioning posts 303 move along the desiccant dispensing box 30, enter the positioning slots 108, slide along the positioning slots 108, and limit the positioning posts 303 through the positioning slots 108, so as to limit the desiccant dispensing box 30 at the dispensing opening 106, so as to prevent the desiccant dispensing box 30 from being separated from the dispensing opening 106 when being drawn out, and prevent the air in the sampling box 10 from intersecting with the outside air.

Referring to fig. 2, further, a sealing strip 112 is disposed around an inner sidewall of the input port 106, which is in contact with the desiccant input box 30, and the sealing strip 112 is made of rubber, plastic, fiber, or the like, so as to increase the sealing property between the desiccant input box 30 and the input port 106.

Referring to fig. 4, further, the bottom of the accommodating groove 301 is provided with a vent hole 304. The contact coefficient of the drying agent and the air can be increased, the dehumidification efficiency is improved, when the drying agent putting box 30 moves outwards along the putting channel, the vent holes 304 at the upper end and the lower end of the holding groove 301 enter the sealing cover 107 and are shielded and closed by the sealing cover 107.

Referring to fig. 1 or 2, a temperature sensor 109 and a humidity sensor 110 are further disposed in the sampling box 10 to detect the temperature and humidity in the sampling box 10, and a display device 111 may be disposed at the upper end of the sampling box 10 and connected to the temperature sensor 109 and the humidity sensor 110 to display the temperature and humidity index in the sampling box 10 in real time, so as to facilitate the detection personnel to adjust and collect the temperature and humidity in the sampling box 10.

Referring to fig. 1 or 2 again, further, a handle 104 is disposed on the top of the sampling box 10, and the handle 104 can be disposed on both ends or both sides of the sampling box 10 for easy insertion and extraction.

When the device is used specifically, the fan 103 is arranged in the sampling box 10 to fan the soil air in the sampling box 10, so that the soil air is uniformly mixed, and then the closed-loop circulating detection is formed by the air inlet pipe 101, the air outlet pipe 102 and the soil air analysis and detection equipment 20, so that the soil air indication is truly reflected, the accuracy of data detection is improved, and the data error is reduced.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides a sample detection device is assisted to soil air which characterized in that: open inclosed sampling case all around including the lower extreme, be provided with intake pipe and outlet duct on two lateral walls that the sampling case is relative respectively, intake pipe and outlet duct dock with soil air analysis check out test set respectively, carry out closed cycle through soil air analysis check out test set to the air in the sampling case and detect, the inner chamber of sampling case still is provided with the fan, the fan sets up the positive position in top in the box, can carry out the fanning to the soil air of collecting in the sampling case, makes the air misce bene in the sampling case.

2. The soil air assisted sampling test device of claim 1, wherein: limiting plates are further arranged on two opposite sides of the sampling box and are close to the lower end opening of the sampling box so as to limit the depth of the sampling box penetrating into soil.

3. The soil air assisted sampling test device of claim 1 or 2, wherein: still be provided with the drier on the lateral wall of sampling case and put in the box, the drier is put in the box and can is put in the drier to the sampling case inner chamber to carry out the drying to the air in the sampling case.

4. The soil air assisted sampling inspection device of claim 3, wherein: the utility model discloses a desiccant sampling box, including sampling box, sealed cover, drier, sealed cover and input mouth, seted up on the lateral wall of sampling box and put in the mouth, the inboard of sampling box is provided with the sealed cover, the sealed cover sets up in input mouth department, with put in mouthful sealed butt joint all around, forms and puts in the passageway, the box setting is put in to the drier on putting in the passageway, and the drier puts in the box hugs closely the inside wall of sealed cover all around to along the inner chamber that the sealed cover slidable penetrated the sampling box, put in the drier.

5. The soil air assisted sampling test device of claim 4, wherein: the drier input box be the closed box body all around, set up the holding tank of placing the drier in the upper end of box body, the holding tank is close to the tip that the box body got into the input passageway, the width of holding tank is less than the width of sealed cowling, the drier input box can be followed the input passageway and to the motion of sampling case inner chamber direction, makes the holding tank pass the sealed cowling and expose the inner chamber at the sampling case to carry out adsorption and drying to the air in the sampling case, the drier input box when putting in the passageway outward movement along, can make in the holding tank gets into the sealed cowling, seals the holding tank through the sealed cowling, stops dryly, when the drier input box continues outward movement along the input passageway, can make the holding tank stretch out the lateral wall of sampling case to in order to change and put in the drier.

6. The soil air assisted sampling inspection device of claim 5, wherein: the both sides of sealed cowling transversely are provided with the constant head tank, the both sides that the box was put in to the drier are provided with the reference column, the reference column is close to the drier and puts in the one end that the box got into the input passageway, when the box outwards moved is put in to the drier, the reference column gets into the constant head tank to slide along the constant head tank, put in the box through the constant head tank and carry on spacingly to the drier.

7. The soil air assisted sampling inspection device of claim 6, wherein: sealing strips are arranged around the throwing opening.

8. The soil air assisted sampling inspection device of claim 7, wherein: the bottom of the accommodating groove is provided with an air vent.

9. The soil air assisted sampling test device of claim 1, wherein: and a temperature sensor and a humidity sensor are arranged in the sampling box to detect the temperature and the humidity in the sampling box.

10. The soil air assisted sampling test device of claim 1, wherein: the top of the sampling box is provided with a handle.

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