Odorizing agent concentration detection device

Abstract

The odorant concentration detection device comprises a control panel, an air pump, a floating and sinking barrel and a detection head, a cylindrical inner cavity is formed in the floating and sinking barrel, a piston is connected to the middle of the cylindrical inner cavity in a sliding mode, an air pipe leading to the upper end of the cylindrical inner cavity is arranged at the upper end of the floating and sinking barrel, and the air pipe is connected with the air pump through a hose. A liquid inlet pipe leading to the lower end of the cylindrical inner cavity is arranged at the lower end of the floating and sinking barrel, and the detection head is installed at the lower end of the floating and sinking barrel and electrically connected with the control panel. The air pump enables the air cavity to suck or discharge air so as to push and pull the piston, meanwhile, the liquid cavity of the floating and sinking cylinder sucks or discharges liquid, and the drainage volume of the floating and sinking cylinder is changed, so that the floating and sinking cylinder is controlled to float or sink in the liquid so as to detect the concentrations of odorants at different liquid levels, and the odorant storage tank can be used for detecting the odorant concentration under the condition that the odorant storage tank is strictly sealed. And detection and sampling can be conveniently and quickly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of odorants, and particularly relates to an odorant concentration detection device. Background Art

[0002] An odorant is an organic compound or mixture with a strong odor. When it is added to gas at a very low concentration, it gives the gas a special and unpleasant warning odor, so that the leaked gas can be more easily detected, ensuring the safety of gas transmission and use. After the preparation or transfer of the odorant, it needs to be stored in a storage tank. Since the concentration of each batch of odorants fluctuates, it is necessary to monitor the change in the concentration of the odorant in the storage tank, and timely adjust the proportion of the odorant added to the gas, which not only does not waste the odorant, but also ensures that the addition amount of the odorant meets the standard, and can also timely detect batches of odorants with unqualified concentrations and properly dispose of them. For the sampling and detection of the odorant in the storage tank, the staff needs to open the tank mouth on the tank top, take samples and detect them through special tools, which is troublesome and dangerous. Moreover, each time samples are taken, the odorant stock solution will pollute the air, and the air will also enter the tank and cause a certain degree of oxidation to the odorant, further affecting the odorant. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides an odorant concentration detection device, which can conveniently and quickly detect and sample under the condition that the odorant storage tank is strictly sealed.

[0004] The technical solution of the utility model is: an odorant concentration detection device, including a control panel, an air pump, a floating and sinking cylinder and a detection head. A cylindrical inner cavity is provided in the floating and sinking cylinder. A piston is slidably connected to the middle of the cylindrical inner cavity. An air pipe leading to the upper end of the cylindrical inner cavity is provided at the upper end of the floating and sinking cylinder. The air pipe is connected to the air pump through a hose. A liquid inlet pipe leading to the lower end of the cylindrical inner cavity is provided at the lower end of the floating and sinking cylinder. The detection head is installed at the lower end of the floating and sinking cylinder, and the detection head is electrically connected to the control panel.

[0005] Further, a liquid outlet pipe leading to the lower end of the floating and sinking cylinder is provided at the lower end of the cylindrical inner cavity. A first check valve leading to the cylindrical inner cavity is provided on the liquid inlet pipe, and a second check valve leaving the cylindrical inner cavity is provided on the liquid outlet pipe.

[0006] Further, the liquid outlet pipe extends along the outer wall of the floating and sinking cylinder to the upper end of the floating and sinking cylinder.

[0007] Further, it also includes a guard bar, and the guard bar surrounds the outside of the floating and sinking cylinder.

[0008] Further, the inside of the guard bar is a hollow structure.

[0009] Compared with the prior art, the advantages of the present utility model are as follows: The air chamber inhales or discharges air through an air pump to push or pull the piston. At the same time, the liquid chamber of the floating and sinking cylinder inhales or discharges liquid, changing the drainage volume of the floating and sinking cylinder, thereby controlling the floating or sinking of the floating and sinking cylinder in the liquid to detect the concentration of odorant at different liquid levels. Under the condition that the odorant storage tank is strictly sealed, the detection and sampling can be carried out conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0011] Figure 1 It is a schematic assembly diagram of the floating and sinking cylinder and the guard bar of the present utility model;

[0012] Figure 2 It is a schematic structural diagram of the floating and sinking cylinder of the present utility model;

[0013] Figure 3 It is a schematic working principle diagram of the present utility model.

[0014] Wherein: 1. Floating and sinking cylinder; 2. Detection head; 3. Air pipe; 4. Liquid inlet pipe; 5. Liquid outlet pipe; 6. Piston; 7. First check valve; 8. Second check valve; 9. Cylindrical inner cavity; 901. Air chamber; 902. Liquid chamber; 10. Guard bar; 11. Control panel; 12. Air pump; 13. Sampling pipe; 14. Hose; 15. Odorant. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined invention purpose, the following will, in conjunction with the drawings and preferred embodiments, describe in detail the specific embodiments, structures, features, and their effects of the present utility model as follows.

[0016] As Figures 1-3As shown in the figure, an odorant concentration detection device includes a control panel 11, an air pump 12, a floating and sinking cylinder 1, and a detection head 2. A cylindrical inner cavity 9 is provided in the floating and sinking cylinder 1. A piston 6 is slidably connected to the middle of the cylindrical inner cavity 9. The piston 6 divides the cylindrical inner cavity 9 into an upper air cavity 901 and a lower liquid cavity 902. An air pipe 3 leading to the upper end of the cylindrical inner cavity 9 is provided at the upper end of the floating and sinking cylinder 1. The air pipe 3 is connected to the air pump 12 through a hose 14. A liquid inlet pipe 4 leading to the lower end of the cylindrical inner cavity 9 is provided at the lower end of the floating and sinking cylinder 1. The detection head 2 is installed at the lower end of the floating and sinking cylinder 1, and the detection head 2 is electrically connected to the control panel 11. The air pump 12 is used to inhale or discharge air from the air cavity 901 to push and pull the piston 6. At the same time, the liquid cavity 902 of the floating and sinking cylinder 1 inhales or discharges liquid, changing the drainage volume of the floating and sinking cylinder 1, so as to control the floating or sinking of the floating and sinking cylinder 1 in the liquid, and detect the concentration of the odorant 15 at different liquid levels. A liquid outlet pipe 5 leading to the lower end of the floating and sinking cylinder 1 is provided at the lower end of the cylindrical inner cavity 9. A first check valve 7 leading to the cylindrical inner cavity 9 is provided on the liquid inlet pipe 4. A second check valve 8 leaving the cylindrical inner cavity 9 is provided on the liquid outlet pipe 5. The liquid outlet pipe 5 can be used as a sampling pipe 13. By gradually pumping out the liquid through the second check valve 8 and the second check valve 8, the liquid can be detected more accurately.

[0017] In the above embodiment, the liquid outlet pipe 5 extends along the outer wall of the floating and sinking cylinder 1 to the upper end of the floating and sinking cylinder 1, concentrating the liquid outlet pipe 5 and the air pipe 3 together to avoid mutual interference and torsion between the two in the liquid, thus affecting the inlet and outlet of gas and liquid. The device also includes a guard bar 10. The guard bar 10 surrounds the outside of the floating and sinking cylinder 1, which can not only provide enough safety distance for the air pipe 3 and the liquid outlet pipe 5 to prevent them from being bent and blocked, but also provide a safe height for the detection head 2 to avoid it being damaged or misdetecting impurities at the bottom of the liquid. The inside of the guard bar 10 is a hollow structure, increasing the drainage volume of the guard bar 10, making its overall density close to the liquid to be detected, so as to balance its buoyancy and avoid the floating and sinking cylinder 1 being unable to float on the liquid surface due to the weight increase of the guard bar 10.

[0018] The working mode of the present utility model is described as follows:

[0019] Place the floating and sinking cylinder 1 of this device in the odorant 15 storage tank, while the control panel 11 and the liquid outlet pipe 5 are arranged beside the storage tank. The hose 14 connecting the air pipe 3 and the sampling pipe 13 connecting the liquid outlet pipe 5 both pass through the preset opening of the tank mouth to maintain the airtightness of the storage tank. Under normal conditions, the air pump 12 pressurizes the air cavity 901 through the air pipe 3, pushing the piston 6 to squeeze the space of the liquid cavity 902, increasing the drainage volume of the floating and sinking cylinder 1, so that the floating and sinking cylinder 1 floats on the surface of the odorant 15. The concentration of the odorant 15 is detected in real time by the detection head 2, and the detection data is fed back to the control panel 11; when the data obtained and fed back by the detection head 2 is abnormal or reaches the specified sampling duration, the air pump 12 pumps air to pull the piston 6 back, the odorant 15 is inhaled into the liquid cavity 902, the drainage volume of the floating and sinking cylinder 1 becomes smaller and it sinks to the bottom of the storage tank. The detection head 2 obtains the concentration of the odorant 15 at the bottom of the storage tank and compares it with the upper layer concentration progress. After delay detection, the air pump 12 intakes air to push the piston 6 out. At this time, under the restriction of the first check valve 7, the odorant 15 in the liquid cavity 902 passes through the second check valve 8 and is transported to the outside of the storage tank through the liquid outlet pipe 5 for sampling and inspection analysis by the staff. By reciprocating the piston 6 by the air pump 12, continuous sampling can be carried out. It should be noted that when the piston 6 reciprocates for continuous sampling, it is necessary to ensure the integrity of the reciprocating movement stroke of the piston 6 to ensure that the floating and sinking cylinder 1 samples both the upper and lower layers of the odorant 15 through the floating and sinking movement and accurately feedback the average concentration of the odorant 15; in addition, at the initial stage of sampling, the odorant 15 remaining in the liquid outlet pipe 5 during the previous round of sampling needs to be drained completely to avoid affecting the concentration of the odorant 15 sample in this round.

[0020] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An odorant concentration detection device, comprising a control panel, an air pump, a floating and sinking cylinder, and a detection head, characterized in that: The floating and sinking cylinder is provided with a cylindrical inner cavity. A piston is slidably connected to the middle of the cylindrical inner cavity. An air pipe leading to the upper end of the cylindrical inner cavity is provided at the upper end of the floating and sinking cylinder. The air pipe is connected to an air pump through a hose. A liquid inlet pipe leading to the lower end of the cylindrical inner cavity is provided at the lower end of the floating and sinking cylinder. The detection head is installed at the lower end of the floating and sinking cylinder, and the detection head is electrically connected to the control panel.

2. The odorant concentration detection device according to claim 1, wherein: A liquid outlet pipe leading to the lower end of the floating and sinking cylinder is provided at the lower end of the cylindrical inner cavity. A first check valve leading to the cylindrical inner cavity is provided on the liquid inlet pipe, and a second check valve leaving the cylindrical inner cavity is provided on the liquid outlet pipe.

3. The odorant concentration detection device according to claim 2, wherein: The liquid outlet pipe extends along the outer wall of the floating and sinking cylinder to the upper end of the floating and sinking cylinder.

4. The odorant concentration detection device according to claim 1, characterized in that: It further includes a guard bar, and the guard bar surrounds the outside of the floating and sinking cylinder.

5. The odorant concentration detection device according to claim 4, wherein: The inside of the guard bar is a hollow structure.

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