CN218546695U - Gas detection instrument - Google Patents

Abstract

The utility model discloses a gas detection instrument relates to gas detection instrument technical field, and it is inaccurate to the testing result that contains the combustible gas of vapor or liquid steam to have solved current detection analytical instrument, and vapor or liquid steam among the combustible gas influence the testing result problem very easily, including the blast pipe, blast pipe fixed mounting is in the inside of sample container. When the device is used for detecting combustible gas, collected gas can be detected after water vapor and liquid vapor in the gas are separated out, so that the detected gas does not contain water vapor and liquid vapor any more, and the detection and analysis result is accurate.

Description

Gas detection instrument

Technical Field

The utility model belongs to the technical field of gaseous detecting instrument, more specifically says, in particular to gaseous detecting instrument.

Background

When carrying out each item construction maintenance operation in chemical enterprise, need detect the combustible gas concentration in the workspace through gaseous detection analytical instrument to guarantee safe construction.

When the existing detection and analysis instrument is used, the detection result of the existing detection and analysis instrument on combustible gas containing water vapor or liquid vapor is inaccurate, the water vapor or the liquid vapor in the combustible gas easily influences the detection result, and the accuracy and the practicability are poor.

Therefore, in view of the above, a gas detecting apparatus is provided to achieve the purpose of having more practical value by improving the existing structure and defects.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a gas detection instrument to it is inaccurate to the testing result that contains vapor or liquid steam to solve current detection and analysis instrument, vapor or liquid steam among the combustible gas influence the testing result problem very easily.

The utility model discloses gaseous detecting instrument's purpose and efficiency are reached by following specific technological means:

a gas detection instrument comprises a sample container, wherein a gas inlet assembly is arranged on the side surface of the sample container; the air inlet assembly comprises a piston cylinder, a piston rod, a piston disc and a collecting cover, the piston cylinder is fixedly arranged on the side face of the sample container, the piston disc is fixedly arranged at one end of the piston rod, the piston disc is inserted in the piston cylinder, and the collecting cover is inserted at the top of the piston cylinder; the exhaust pipe is fixedly arranged inside the sample container; a detection sensor fixedly mounted inside the sample container.

Furthermore, the inside of the sample container is divided into a cold water cavity and a detection cavity, the detection cavity is located inside the cold water cavity, and cooling water is filled inside the cold water cavity.

Furthermore, the top of the side surface of the piston cylinder is provided with a longitudinal air inlet channel, an air inlet check valve a is arranged inside the longitudinal air inlet channel, and the longitudinal air inlet channel is communicated with the inner space and the outer space of the piston cylinder.

Further, the inside of piston cylinder is equipped with horizontal intake duct, and the inside of horizontal intake duct is equipped with air inlet check valve b, and the inside of horizontal intake duct intercommunication piston cylinder and the inside in cold water chamber.

Furthermore, the cross section of the pipe body of the exhaust pipe is L-shaped, and the height of the vertical pipe of the exhaust pipe is higher than the height of the water level in the cold water cavity.

Furthermore, an exhaust check valve is arranged inside the vertical pipe of the exhaust pipe.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the device is examining time measuring to combustible gas, can detect the gas of collecting again after the vapor and the liquid steam in the gas separate out to no longer contain vapor and liquid steam in the gas that detects, it is accurate to detect the analysis result, and flexibility, accuracy and practicality improve greatly.

2. Can be with the internal detection of external gas that awaits measuring impressing sample container through the subassembly that admits air, the device is when resetting the state, the inside of sample container is in the encapsulated situation under the mating reaction of check valve, the inside and outside gas of device can not produce the interaction, when needs detection analysis use, the pulling piston rod, the piston rod drives the piston dish and outwards removes in the inside of piston cylinder, and outside gas can get into the inside of piston cylinder through admitting air check valve a this moment, thereafter press the piston rod, the piston rod can pass through the inside of admitting air check valve b impressing the inside gas of piston cylinder into the sample container, at first can pass through the cold water chamber when gas gets into the inside of sample container, the inside cooling water in cold water chamber can be with the aqueous vapor and the liquid steam separation out of in the gas, combustible gas is difficult to dissolve in water or insoluble in water again simultaneously, thereby the gaseous inside that separates out aqueous vapor and liquid steam can get into the detection chamber, the original gas that detects the intracavity portion can pass through the exhaust check valve through the blast pipe discharge and detect the inside of chamber simultaneously, repeat above-mentioned step and after the gaseous complete replacement completion of detection intracavity portion, can detect the sensor and detect gas concentration, convenient and nimble.

3. The height of blast pipe is higher than the water level height of cold water intracavity portion to when carrying out the gas replacement operation, the cooling cold water can not be discharged through the blast pipe, and is stable in utilization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is an enlarged schematic structural view of a portion a in fig. 2 according to the present invention.

Fig. 4 is an enlarged schematic structural view of the part B in fig. 2 according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a sample container; 101. a cold water chamber; 102. a detection chamber; 2. an air intake assembly; 201. a piston cylinder; 2011. a longitudinal air inlet channel; 20111. an air inlet check valve a; 2012. a transverse air inlet channel; 20121. an air inlet check valve b; 202. a piston rod; 203. a piston disc; 204. a collection hood; 3. an exhaust pipe; 301. an exhaust check valve; 4. and detecting the sensor.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 4:

the utility model provides a gas detection instrument, which comprises a sample container 1, wherein the side surface of the sample container 1 is provided with an air inlet component 2; the air inlet assembly 2 comprises a piston cylinder 201, a piston rod 202, a piston disc 203 and a collection cover 204, wherein the piston cylinder 201 is fixedly arranged on the side surface of the sample container 1, the piston disc 203 is fixedly arranged at one end of the piston rod 202, the piston disc 203 is inserted in the piston cylinder 201, and the collection cover 204 is inserted at the top of the piston cylinder 201; an exhaust pipe 3, wherein the exhaust pipe 3 is fixedly arranged in the sample container 1; and a detection sensor 4, wherein the detection sensor 4 is fixedly arranged in the sample container 1.

Wherein, the inside of sample container 1 is divided into cold water chamber 101 and detects chamber 102, detects the inside that chamber 102 is located cold water chamber 101, and the inside of cold water chamber 101 contains cooling water, and in use, the device is examining time measuring combustible gas, can detect the gas of collection again after can separating out vapor and liquid steam in the gas to no longer contain vapor and liquid steam in the gas that detects, it is accurate to detect the analysis result, and flexibility, accuracy and practicality improve greatly.

Wherein, the top of the side of the piston cylinder 201 is provided with a longitudinal air inlet 2011, the longitudinal air inlet 2011 is internally provided with an air inlet check valve a20111, the longitudinal air inlet 2011 is communicated with the inner space and the outer space of the piston cylinder 201, the piston cylinder 201 is internally provided with a transverse air inlet 2012, the transverse air inlet 2012 is internally provided with an air inlet check valve b20121, the transverse air inlet 2012 is communicated with the inner part of the piston cylinder 201 and the inner part of the cold water cavity 101, the vertical pipe of the exhaust pipe 3 is internally provided with an exhaust check valve 301, in use, the external gas to be detected can be pressed into the sample container 1 through the air inlet assembly 2 for detection, when the device is in a reset state, the inner part of the sample container 1 is in a closed state under the cooperation of the check valves, the gas inside and the outside of the device can not generate interaction, when the device is used for detection and analysis, the piston rod 202 is pulled, the piston rod 202 drives the piston disc 203 to move outwards in the piston cylinder 201, therefore, at this time, the external gas can enter the interior of the piston cylinder 201 through the air inlet check valve a20111, then the piston rod 202 is pressed, the piston rod 202 can press the gas collected in the interior of the piston cylinder 201 into the interior of the sample container 1 through the air inlet check valve b20121, when the gas enters the interior of the sample container 1, the gas firstly passes through the cold water cavity 101, the cooling cold water in the cold water cavity 101 can separate out the water vapor and the liquid vapor in the gas, meanwhile, the combustible gas is insoluble in water or insoluble in water, so that the gas with the separated out water vapor and liquid vapor can enter the interior of the detection cavity 102, meanwhile, the original gas in the detection cavity 102 can be discharged out of the interior of the detection cavity 102 through the exhaust check valve 301 through the exhaust pipe 3, after the steps are repeated to completely replace the gas in the detection cavity 102, the concentration of the gas can be detected through the detection sensor 4, the use is convenient and flexible.

Wherein, the body cross-section of blast pipe 3 is "L" shape, and the riser height of blast pipe 3 is higher than the inside water level height in cold water chamber 101, and this design is when carrying out gas replacement operation, and the cooling cold water can not be discharged through blast pipe 3, and is used stably.

The specific use mode and function of the embodiment are as follows:

the utility model discloses in, can impress the internal detection of external gas that awaits measuring sample container 1 through the subassembly 2 that admits air, the device is when the reset state, sample container 1's inside is in the encapsulated situation under the mating reaction of check valve, the inside and outside gas of device can not produce alternately, when needs detection analysis uses, pulling piston rod 202, piston rod 202 drives piston disc 203 and outwards removes in the inside of piston cylinder 201, thereby outside gas can get into the inside of piston cylinder 201 through admit air check valve a20111 this moment, press piston rod 202 afterwards, piston rod 202 can impress the inside of sample container 1 through admit air check valve b20121 with the inside gas of piston cylinder 201, at first can pass through cold water chamber 101 when gas gets into sample container 1's inside, the inside cooling cold water of cold water chamber 101 can be with the vapor and the liquid steam in the gas precipitation, combustible gas is difficult to water or liquid steam again simultaneously, thereby the gas of precipitation vapor and liquid steam can get into the inside of detecting chamber 102, detect the original gas of chamber 102 inside can pass through the inside 3 inside of blast pipe of discharging detection chamber 102 through exhaust check valve 301 through exhaust simultaneously, above-mentioned gas can accomplish the gas concentration detection sensor after the replacement completely, above-mentioned step is accomplished the concentration detection sensor.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (6)

1. A gas detection instrument, characterized by: the method comprises the following steps: the sample container (1), the side of the sample container (1) is provided with an air inlet component (2); the air inlet assembly (2) comprises a piston cylinder (201), a piston rod (202), a piston disc (203) and a collecting cover (204), the piston cylinder (201) is fixedly installed on the side face of the sample container (1), the piston disc (203) is fixedly installed at one end of the piston rod (202), the piston disc (203) is inserted into the piston cylinder (201), and the collecting cover (204) is inserted into the top of the piston cylinder (201); the exhaust pipe (3), the said exhaust pipe (3) is fixedly mounted inside sample container (1); a detection sensor (4), wherein the detection sensor (4) is fixedly arranged inside the sample container (1).

2. A gas detection apparatus as claimed in claim 1, wherein: the inside of the sample container (1) is divided into a cold water cavity (101) and a detection cavity (102), the detection cavity (102) is located inside the cold water cavity (101), and cooling water is filled inside the cold water cavity (101).

3. A gas detection apparatus as claimed in claim 1, wherein: the side top of piston cylinder (201) is equipped with longitudinal inlet duct (2011), and the inside of longitudinal inlet duct (2011) is equipped with admit air check valve a (20111), and longitudinal inlet duct (2011) intercommunication piston cylinder (201) inside and outside space.

4. A gas detection apparatus as claimed in claim 1 wherein: the inside of piston cylinder (201) is equipped with horizontal transverse air inlet duct (2012), and the inside of transverse air inlet duct (2012) is equipped with air inlet check valve b (20121), and transverse air inlet duct (2012) communicates the inside of piston cylinder (201) and cold water chamber (101) inside.

5. A gas detection apparatus as claimed in claim 1, wherein: the cross section of the pipe body of the exhaust pipe (3) is L-shaped, and the height of the vertical pipe of the exhaust pipe (3) is higher than the height of the water level in the cold water cavity (101).

6. A gas detection apparatus as claimed in claim 1, wherein: an exhaust check valve (301) is arranged in the vertical pipe of the exhaust pipe (3).

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