CN111707503A

CN111707503A - Liquid ammonia sampling device

Info

Publication number: CN111707503A
Application number: CN202010744312.9A
Authority: CN
Inventors: 吴磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2020-09-25

Abstract

The invention relates to the technical field of liquid ammonia extraction, and discloses a liquid ammonia sampling device which comprises a sampling tank, wherein a first connecting pipe is arranged on the left side of the sampling tank, a second connecting pipe is arranged on the right side of the sampling tank, the upper end of the sampling tank is in threaded connection with the middle part of a screw rod, the upper part of the screw rod is rotatably connected with the middle part of a mounting plate, a driving motor is arranged on the right side of the mounting plate, an output shaft of the driving motor is fixedly connected with a first bevel gear, the first bevel gear is in meshed connection with a second bevel gear, the second bevel gear is fixedly connected with the upper end of the screw rod, the lower end of the screw rod is rotatably connected with the middle part of the upper surface of a piston, guide rods are arranged at the left end. The liquid ammonia sampling device is suitable for a liquid ammonia sampling device, the up-and-down movement of the piston is controlled through the driving motor, the quantitative sampling effect is realized, an operator does not need to directly contact liquid ammonia, and the safety of the device is improved.

Description

Liquid ammonia sampling device

Technical Field

The invention relates to the technical field of liquid ammonia extraction, in particular to a liquid ammonia sampling device.

Background

Liquid ammonia, also known as anhydrous ammonia, is a colorless liquid with a strong pungent odor. Ammonia is an important chemical raw material, and for convenience in transportation and storage, gaseous ammonia gas is usually pressurized or cooled to obtain liquid ammonia. Liquid ammonia is easy to dissolve in water, ammonium ions NH4+ and hydroxyl ions OH < - >, are formed after the liquid ammonia is dissolved in water, and the solution is alkaline. The liquid ammonia is often stored in a pressure-resistant steel cylinder or a steel tank, and cannot coexist with acetaldehyde, acrolein, boron and the like. Liquid ammonia is widely used in industry, has corrosiveness and is easy to volatilize, so that the chemical accident rate is high.

Therefore, the temperature of the liquid ammonia is very low, and the direct contact of operators is completely avoided when sampling.

Chinese patent (publication No. CN 205002987U) discloses a liquid sampler, which comprises a sampler bottle body including a sampler cover, a sampling rope and a sampling auxiliary device arranged at the bottom of the sampler bottle body, wherein the sampler cover is connected with the sampling rope. The device simple structure has satisfied the needs of various samples, can enough draw the sample on liquid top layer, can draw the sample on liquid bottom again, and the sample depth is accurate, and easy operation is convenient, realizes fixed point, ration sample, can automatic closure after the sample bottle lid sample, avoids mixing of sample between the different degree of depth to influence the testing result, but this kind of device can not be used for the access of liquid ammonia, consequently needs improve the device.

Disclosure of Invention

The invention provides a liquid ammonia sampling device, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a liquid ammonia sampling device, includes the sample jar, and the left side of sample jar is equipped with first connecting pipe, and the right side of sample jar is equipped with the second connecting pipe, the middle part of sample jar upper end threaded connection lead screw, the middle part of connecting the mounting panel is rotated on the upper portion of lead screw, and the right side of mounting panel is equipped with driving motor, and the first bevel gear of driving motor's output shaft fixed connection, the second bevel gear is connected in the meshing of first bevel gear, the upper end of second bevel gear fixed connection lead screw, the upper surface middle part of connecting the piston is rotated to the lower extreme of lead screw, both ends are equipped with the guide bar about the mounting panel, the upper end of the middle part sliding connection sample jar of guide bar.

As a preferable technical solution of the present invention, a first adapter is disposed at a left end of the first connection pipe, a first connection head is disposed at a left side of the first adapter, and an external thread is disposed outside the first connection head.

As a preferable technical solution of the present invention, a first throttle valve is provided in a middle portion of the first connection pipe.

According to a preferable technical scheme of the invention, a second adapter is arranged at the right end of the second connecting pipe, a second connector is arranged on the right side of the second adapter, and internal threads are arranged inside the second connector.

As a preferable technical solution of the present invention, a second throttle valve is provided in a middle portion of the second connection pipe.

As a preferable technical scheme of the invention, the lower part of the sampling tank is provided with a conical pipe.

As a preferred technical scheme of the invention, the lower end of the conical pipe is provided with a sewage discharge pipe, and the middle part of the sewage discharge pipe is provided with a third throttle valve.

As a preferable technical scheme of the invention, support columns are arranged on the left side and the right side of the conical tube, and bottom plates are arranged at the lower ends of the support columns.

As a preferable technical scheme of the invention, an O-shaped ring is arranged on the outer side of the piston.

The invention has the following advantages:

the liquid ammonia sampling device is suitable for a liquid ammonia sampling device, the device can be connected with different device adapters by arranging the first connector and the second connector, the up-and-down movement of the piston is controlled by the driving motor, the quantitative sampling effect is realized, an operator does not need to directly contact liquid ammonia, and the safety of the device is improved.

Drawings

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

FIG. 1 is a schematic structural diagram of a liquid ammonia sampling device.

FIG. 2 is a half sectional view of a liquid ammonia sampling device.

Fig. 3 is a front view of fig. 2.

In the figure: 1. a base plate; 2. a support pillar; 3. a sampling tank; 4. a tapered tube; 5. a first connector; 6. a first adapter; 7. a first connecting pipe; 8. a first throttle valve; 9. a second connector; 10. a second adapter; 11. a second connecting pipe; 12. a second throttle valve; 13. a blow-off pipe; 14. a third throttle valve; 15. an O-shaped ring; 16. a piston; 17. a guide bar; 18. a screw rod; 19. mounting a plate; 20. a drive motor; 21. a second bevel gear; 22. a first bevel gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-3, a liquid ammonia sampling device comprises a sampling tank 3, a first connecting pipe 7 is arranged on the left side of the sampling tank 3, a second connecting pipe 11 is arranged on the right side of the sampling tank 3, the upper end of the sampling tank 3 is in threaded connection with the middle of a screw rod 18, the upper portion of the screw rod 18 is rotatably connected with the middle of a mounting plate 19, a driving motor 20 is arranged on the right side of the mounting plate 19, an output shaft of the driving motor 20 is fixedly connected with a first bevel gear 22, the first bevel gear 22 is in meshed connection with a second bevel gear 21, the second bevel gear 21 is fixedly connected with the upper end of the screw rod 18, the lower end of the screw rod 18 is rotatably connected with the middle of the upper surface of a piston 16, guide rods 17 are arranged at the left end and the right end of the mounting plate 19, the middle of each guide.

The left end of first connecting pipe 7 is equipped with first adapter 6, the left side of first adapter 6 is equipped with first adapter 5, the outside of first adapter 5 is equipped with the external screw thread, the middle part of first connecting pipe 7 is equipped with first choke valve 8, the right-hand member of second connecting pipe 11 is equipped with second adapter 10, the right side of second adapter 10 is equipped with second connector 9, the inside of second connector 9 is equipped with the internal thread, the middle part of second connecting pipe 11 is equipped with second choke valve 12, the lower part of sample jar 3 is equipped with conical duct 4, the lower extreme of conical duct 4 is equipped with blow off pipe 13, the middle part of blow off pipe 13 is equipped with third choke valve 14, the left and right sides of conical duct 4 is equipped with support column 2, the lower extreme of support column 2 is equipped with bottom plate 1.

Example two

Referring to fig. 2, the other contents of the present embodiment are the same as those of the first embodiment, except that: an O-shaped ring 15 is arranged on the outer side of the piston 16. In order to improve the sealing effect between the piston 16 and the sampling tank 3, the O-shaped ring 15 is arranged outside the piston 16, and the piston 16 is tightly combined with the inner wall of the sampling tank 3 through the deformation of the O-shaped ring 15, so that the sealing effect is realized.

In the implementation process of the invention, the device is placed near a liquid ammonia storage device, a first connector 5 or a second connector 9 is selected according to an output interface of the storage device, when the output interface of the storage device is a male connector, the second connector 9 is selected to be connected with the output interface, if the output interface of the storage device is a female connector, the first connector 5 is selected to be connected with the output interface, because a first adapter 6 or a second adapter 10 is arranged, the first connector 5 can rotate around a first connecting pipe 7, the second connector 9 can rotate around a second connecting pipe 11, the first connector 5 or the second connector 9 is in threaded connection with the output interface in a rotating mode, at the moment, a corresponding first throttle valve 8 or a corresponding second throttle valve 12 is opened, liquid ammonia in the storage device enters a sampling tank 3, and at the moment, a driving motor 20 is started, the driving motor 20 drives the screw rod 18 to rotate through a first bevel gear 22 and a second bevel gear 21 which are connected in a meshed mode, the screw rod 18 is in threaded connection with the storage tank, the screw rod 18 drives the piston 16 to move upwards, liquid ammonia in the sampling tank 3 is enabled to rise continuously, after the sampling volume meets the use requirement, the driving motor 20 is stopped, the first throttle valve 8 or the second throttle valve 12 is closed, at the moment, the side wall device and the storage device can be disconnected, and the side wall device and the subsequent equipment can be connected; the liquid ammonia sampling device is suitable for a liquid ammonia sampling device, the device can be connected with different device adapters by arranging the first connector 5 and the second connector 9, the up-and-down movement of the piston 16 is controlled by the driving motor 20, a quantitative sampling effect is realized, an operator does not need to directly contact liquid ammonia, and the safety of the device is improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A liquid ammonia sampling device comprises a sampling tank (3), wherein a first connecting pipe (7) is arranged on the left side of the sampling tank (3), a second connecting pipe (11) is arranged on the right side of the sampling tank (3), the upper end of the sampling tank (3) is in threaded connection with the middle of a screw rod (18), the upper portion of the screw rod (18) is rotatably connected with the middle of a mounting plate (19), a driving motor (20) is arranged on the right side of the mounting plate (19), an output shaft of the driving motor (20) is fixedly connected with a first bevel gear (22), the first bevel gear (22) is in meshed connection with a second bevel gear (21), the second bevel gear (21) is fixedly connected with the upper end of the screw rod (18), the lower end of the screw rod (18) is rotatably connected with the middle of the upper surface of a piston (16), guide rods (17) are arranged at the left end and the right end of the mounting plate (19), and, the lower end of the guide rod (17) is fixedly connected with the left side and the right side of the upper surface of the piston (16).

2. A liquid ammonia sampling device according to claim 1, wherein the left end of the first connection pipe (7) is provided with a first adapter (6), the left side of the first adapter (6) is provided with a first connection head (5), and the outside of the first connection head (5) is provided with an external thread.

3. A liquid ammonia sampling device according to claim 2, wherein a first throttle valve (8) is provided in the middle of the first connecting pipe (7).

4. A liquid ammonia sampling device according to claim 1, wherein the right end of the second connecting pipe (11) is provided with a second adapter (10), the right side of the second adapter (10) is provided with a second connector (9), and the inside of the second connector (9) is provided with internal threads.

5. A liquid ammonia sampling device according to claim 4, wherein a second throttle valve (12) is provided in the middle of the second connecting pipe (11).

6. A liquid ammonia sampling device according to claim 1, wherein the lower part of the sampling tank (3) is provided with a conical tube (4).

7. A liquid ammonia sampling device according to claim 6, wherein the lower end of the conical pipe (4) is provided with a sewage draining pipe (13), and the middle part of the sewage draining pipe (13) is provided with a third throttle valve (14).

8. A liquid ammonia sampling device according to claim 6, wherein the left and right sides of the conical tube (4) are provided with support columns (2), and the lower ends of the support columns (2) are provided with bottom plates (1).

9. A liquid ammonia sampling device according to claim 1, wherein an O-ring (15) is provided on the outside of the piston (16).