Gas sampler

Abstract

The utility model discloses a gas sampler which comprises a control unit, a gas pump, a sampling barrel and a gas bag, a closed cavity is formed in the sampling barrel, the gas bag is arranged in the closed cavity and connected with a gas nozzle, and the gas nozzle upwards penetrates through the sampling barrel and is communicated with the outside. And the air pump is communicated with the closed chamber through the air channel pipeline and can blow or suck air into the closed chamber under the action of the control unit. The gas sampling device is reasonable in structure, high in sampling efficiency, good in gas tightness and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas sampling equipment technical field, specifically is a kind of gas sampler. BACKGROUND

[0002] The current environmental monitoring system needs to sample and test the intensity and concentration of malodor or odor gas in the industry such as chemical industry and perfume manufacturing industry, but malodor or odor does not occur at any time, and is often random, which brings many difficulties to sampling and testing.

[0003] The gas is collected by using a syringe in the past, which is time-consuming and labor-intensive, and the amount of gas collected by this sampling method is relatively small, and the leakage loss is also relatively large. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of gas samplers, it solves the technical problems of low efficiency, small single sampling gas and large leakage loss existed in prior art manual syringe sampling, with the technical effects of reasonable structure, high sampling efficiency, good air tightness, convenient to use.The technical scheme used is as follows:

[0005] A kind of gas sampler, including control unit, gas pump, sampling bucket and gas bag, the closed chamber is formed in the sampling bucket, the gas bag is placed in closed chamber and is connected with gas nozzle, the gas nozzle is upward and is communicated with outside, the gas pump is communicated with closed chamber by gas path pipeline and can be blown or inhaled closed chamber under the action of control unit.

[0006] On the basis of the above technical solution, the sampling bucket includes a barrel and an upper cover, the barrel is open upward, and the upper cover is used to open or seal the upper opening of the barrel.

[0007] On the basis of the above technical solution, the barrel is made of acrylic material, and a protective sleeve is sleeved on the bottom of the barrel.

[0008] On the basis of the above technical solution, a silica gel sealing ring is sleeved on the end surface of the barrel facing the upper cover, and the upper cover is detachably connected with the barrel by a plurality of locking buckles.

[0009] On the basis of the above technical solution, the end of the gas path pipeline penetrates the upper cover and communicates with the closed chamber.

[0010] On the basis of the above technical solution, the gas nozzle includes a quick connector, one end of the quick connector is sealingly connected with the gas bag, and the other end of the quick connector can be connected with a gas source to be sampled.

[0011] On the basis of the above technical scheme, the sampling barrel is further provided with a gas pressure sensor fixedly arranged in the sampling barrel, and the gas pressure sensor is electrically connected with the control unit to monitor the gas pressure in the sampling barrel.

[0012] On the basis of the above technical scheme, the control unit and the air pump are arranged in a shell.

[0013] On the basis of the above technical scheme, the top surface of the shell is provided with a handle, the bottom surface of the shell is provided with a plurality of foot pads, and two pull rings are arranged on the opposite two side surfaces of the shell to facilitate connection of a carrying strap.

[0014] Beneficial effects

[0015] The sampling barrel is provided with a closed chamber, and the gas bag is arranged in the closed chamber, so that when the air pump is driven by the control unit to inflate the sampling barrel, a positive pressure is formed in the sampling barrel to exhaust the gas in the gas bag, thereby facilitating collection of the gas sample or next sampling; when the air pump is driven by the control unit to extract the gas in the sampling barrel, a negative pressure is formed in the sampling barrel, and under the action of the pressure difference, the sampling gas enters the gas bag, and the sampling is completed. Thus, automation control can be realized, time and labor are saved, labor cost is reduced, sampling efficiency is high, and leakage risk after sampling is low.

[0016] In the utility model, the barrel comprises a barrel body and an upper cover, the upper cover is detachably and sealingly connected to the barrel body, the gas bag is convenient to take and place, and in addition, the gas nozzle of the gas bag and the end of the gas path pipeline are arranged on the upper cover, which is convenient for processing and installation. In addition, the sampling barrel is further provided with a gas pressure sensor fixedly arranged in the sampling barrel, so that the gas pressure in the sampling barrel can be monitored in real time, explosion accidents caused by air pump failure can be avoided, and the safety in use is good. In addition, the handle and the pull ring are arranged outside the shell, which is convenient for carrying. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only one embodiment of the utility model, and for those skilled in the art, other embodiment drawings can be obtained according to the provided drawings without creating labor.

[0018] Figure 1 The utility model discloses a three-dimensional structure schematic diagram;

[0019] Figure 2 The utility model discloses the sectional structure schematic diagram of sampling barrel main view in the utility model; DETAILED DESCRIPTION

[0020] The following description and drawings are illustrative of specific embodiments thereof and are not intended to limit the scope of the embodiments. Parts and features of some embodiments can be included or substituted in other embodiments. The scope of the embodiments described herein is encompassed by the entire scope of the claims, and all available equivalents of the claims. Herein, the terms "first", "second", and the like, are used to distinguish one element from another, and do not require or imply any actual relationship or order between such elements. In fact, the first element could be named the second element and, conversely, the second element could be named the first element. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a structure, device, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such structure, device, or apparatus. Without further limitation, an element defined by an "includes a" statement does not exclude the presence of additional identical elements in the structure, device, or apparatus that includes the element. Various embodiments are described in a progressive manner, each focusing on the differences from other embodiments, and the same or similar parts between embodiments are referred to each other.

[0021] The terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate the orientation or positional relationship shown in the drawings, and are used herein and in the description only to facilitate the description and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description herein, unless otherwise specified and limited, the terms "mount", "connect", "connection" should be interpreted broadly, for example, it can be a mechanical connection or an electrical connection, it can be a communication between two elements inside, it can be a direct connection, or an indirect connection through an intermediate medium, and the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0022] Herein, unless otherwise specified, the term "a plurality of" means two or more.

[0023] Herein, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means: A or B.

[0024] Herein, the term "and / or" is a description of the relationship between the objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0025] As Figures 1-2The gas sampler shown comprises a housing 1, a control unit, a gas pump, a sampling barrel 3 and a gas bag 4.

[0026] As shown in Figure 1 and 2 The sampling barrel 3 comprises a barrel body 32 and an upper cover 31, the barrel body 32 is upwardly open, and the upper cover 31 is used to open or seal the upper opening of the barrel body 32. When the upper cover 31 seals the upper opening of the barrel body 32, a closed chamber is formed in the barrel body 32.

[0027] In this embodiment, the barrel body 32 is made of acrylic material, which is resistant to acid and alkali and corrosion, and has a long service life. When sampling corrosive gas, the barrel body 32 can avoid reacting with the gas. A protective sleeve is sleeved on the bottom of the barrel body 32, which is conducive to protecting the lower part of the barrel body 32 and further improving the service life. A silicone sealing ring is sleeved on the end face of the upper cover 31 facing the barrel body 32. The upper cover 31 is detachably connected to the barrel body 32 through a plurality of locking buckles 33. That is, when the locking buckles 33 connect the upper cover 31 to the barrel body 32, the silicone sealing ring is pressed tightly on the barrel body 32, thereby realizing sealed connection.

[0028] The gas bag 4 is placed in the closed chamber and is connected with a gas nozzle 5. In this embodiment, the gas nozzle 5 comprises a quick connector, one end of the quick connector is sealingly connected with the gas bag 4, and the other end of the quick connector can be connected with a gas source to be sampled. This operation is convenient and saves time and effort. The quick connector is a prior art, and those skilled in the art can select it according to needs, which will not be described here.

[0029] In this embodiment, the quick connector penetrates the sampling barrel 3 upwardly and communicates with the outside. Specifically, the quick connector penetrates the upper cover 31 upwardly and extends out of the upper cover 31 to facilitate communication with the gas source. The quick connector is sealingly connected with the upper cover 31, which on the one hand maintains the airtightness of the sampling barrel 3 and on the other hand fixes the gas bag 4 in the sampling barrel 3.

[0030] As shown in Figure 1 The control unit and the gas pump are arranged in the housing 1. The gas pump is electrically connected with the control unit, and communicates with the closed chamber in the sampling barrel 3 through a gas path pipeline 6. In this way, the gas pump can blow or suck the closed chamber under the action of the control unit. The control unit comprises a controller which controls the gas pump to blow or suck the closed chamber, which is a prior art and will not be described here. The gas pump is a prior art, and those skilled in the art can select it according to needs. When the gas pump blows into the sampling barrel 3 under the action of the control unit, a positive pressure is formed in the sampling barrel to empty the gas in the gas bag 4, which is convenient for collecting the gas sample or performing the next sampling. When the gas pump extracts the gas in the sampling barrel under the action of the control unit, a negative pressure is formed in the sampling barrel 3, and the gas to be sampled enters the gas bag 4 under the action of the pressure difference, thereby completing the sampling. Figure 2As shown, the end of the air path pipeline 6 penetrates the upper cover 31 and communicates with the sealed chamber, so that when the upper cover 31 is removed and the opening on the barrel 32 is opened, the air bag 4 or the air pump can be removed as a whole, and the storage is regular.

[0031] In this embodiment, the inner wall surface of the barrel 32 is also fixed with an air pressure sensor, which is electrically connected with the control unit to monitor the air pressure in the sampling barrel 3. The safety in use is good to avoid explosion accidents in the case of air pump failure.

[0032] As Figure 1 As shown, the shell 1 is provided with a plurality of heat dissipation holes, the top surface is provided with a handle (not shown), the bottom surface of the shell 1 is provided with a plurality of foot pads 12, and the opposite two side surfaces of the shell 1 are provided with two pull rings 11 to facilitate the connection of the shoulder strap and the portability.

[0033] The utility model is described above by way of example, but the utility model is not limited to the above-mentioned specific embodiments, and any modification or modification based on the utility model belongs to the scope of the utility model claimed.

Claims

1. A gas sampler characterized by, Including control unit, air pump, sampling bucket (3) and air bag (4), the closed chamber is formed in the sampling bucket (3), the air bag (4) is placed in the closed chamber and is connected with air nozzle (5), the air nozzle (5) is up through the sampling bucket (3) and is communicated with the outside, the air pump is communicated with the closed chamber by air path pipeline (6) and can blow or suck the closed chamber under the action of control unit.

2. The gas sampler of claim 1, wherein, The sampling bucket (3) includes a barrel (32) and an upper cover (31), the barrel (32) is upwardly open, and the upper cover (31) is used to open or seal the barrel opening.

3. The gas sampler of claim 2, wherein, The barrel (32) is made of acrylic material, and the barrel (32) is sleeved with a protective sleeve at the bottom.

4. The gas sampler of claim 2, wherein, The end surface of the upper cover (31) facing the barrel (32) is sleeved with a silica gel sealing ring, and the upper cover (31) is detachably connected with the barrel (32) by a plurality of locking buckles (33).

5. The gas sampler of claim 4, wherein, The end of the air path pipeline (6) penetrates the upper cover (31) and is communicated with the closed chamber.

6. The gas sampler of any one of claims 1 to 5, wherein, The air nozzle (5) includes a quick connector, one end of the quick connector is sealingly connected with the air bag (4), and the other end of the quick connector is connectable with a gas source to be sampled.

7. The gas sampler of claim 6, wherein, The sampling bucket (3) further fixedly has a gas pressure sensor, and the gas pressure sensor is electrically connected with the control unit to monitor the gas pressure in the sampling bucket.

8. The gas sampler of claim 6, wherein, Further comprising a housing (1), the control unit and the air pump are arranged in the housing (1).

9. The gas sampler of claim 8, wherein, The top surface of the housing (1) is provided with a handle, the bottom surface of the housing (1) is provided with a plurality of foot pads (12), and two pull rings (11) are arranged on the opposite sides of the housing (1) to facilitate the connection of the shoulder straps.

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