CN209784323U - Hydrogen detection device in urea production tail gas - Google Patents

Abstract

The utility model discloses a device for detecting hydrogen in tail gas in urea production, which comprises a fixed ring, a tube body, a fixed block, a movable plate and a tail gas tube, the two ends of the tube body are symmetrically welded with first mounting rings, the tail gas tube is welded with a second mounting ring, the second mounting ring is connected with the first mounting rings through connecting bolts, the inner wall of the tube body is welded with a fixed frame, a detection probe is arranged on the fixed frame, the fixed ring is movably arranged on the outer surface of the tube body, threaded rods are welded at two ends of the fixed ring, the movable plate is movably inserted on the threaded rods, threaded caps are arranged on the threaded rods in a threaded mode, the threaded caps are located on the upper surface of the movable plate, the fixed block is fixed on the upper surface of the movable plate, and the fixed block is provided with a mounting groove, the upper surface of the fixed block is provided with a placing groove, the mounting groove is internally provided with a controller through a fixing bolt, and the placing groove is internally fixed with an alarm. The utility model discloses, be convenient for detect the hydrogen concentration in the exhaust gas duct, can in time remind the staff, reduce the potential safety hazard.

Description

hydrogen detection device in urea production tail gas

Technical Field

the utility model relates to a tail gas processing apparatus technical field specifically is a hydrogen detection device in urea production tail gas.

Background

Urea, also known as carbamide, is an organic compound consisting of carbon, nitrogen, oxygen, and hydrogen, which is a white crystal. One of the simplest organic compounds is the major nitrogen-containing end product of the metabolic breakdown of proteins in mammals and certain fish. The urea is also the nitrogen fertilizer with the highest nitrogen content at present, and is used as a neutral fertilizer, and the urea is suitable for various soils and plants. It is easy to preserve, convenient to use, and has little destructive effect on soil, and is a chemical nitrogen fertilizer with larger use amount at present. The synthesis of urea is carried out industrially with ammonia and carbon dioxide under certain conditions.

Generally, urea produces exhaust gas in the production process, and the exhaust gas contains hydrogen, so that when the concentration of the hydrogen in a pipeline reaches a certain degree, explosion is easily caused, and safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydrogen detection device in urea production tail gas, possess simple structure, it is convenient to use, is convenient for detect the hydrogen concentration in the exhaust gas conduit, can in time remind the staff, reduces the advantage of potential safety hazard, solves general urea and can produce waste gas in process of production, and contains hydrogen in these waste gases, when the concentration of hydrogen in the pipeline reachs the certain degree, very easily causes the explosion to cause the problem of incident.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hydrogen detection device in urea production tail gas, includes solid fixed ring, body, fixed block, fly leaf and exhaust pipe, the both ends symmetrical welding of body has first collar, and the inner wall welding of body has the mount, installs the test probe on the mount, gu fixed ring movable mounting has the surface at the body, and gu fixed ring's both ends all weld the threaded rod, the fly leaf activity is pegged graft on the threaded rod, and threaded mounting has the screw cap on the threaded rod, and the screw cap is located the upper surface of fly leaf, the fixed block is fixed at the upper surface of fly leaf, and has seted up the mounting groove on the fixed block, and the standing groove has been seted up to.

Preferably, the tail gas pipe is welded with a second mounting ring, and the second mounting ring is connected with the first mounting ring through a connecting bolt.

Preferably, the surface welding of test probe has the spool, and the spool deviates from the one end welding of test probe at the inner wall of body.

Preferably, the lower surface of the fixing block is provided with a plug, and the position of the plug corresponds to the position of the line pipe.

Preferably, the controller is installed in the installation groove through a fixing bolt, and the alarm is fixed in the placement groove.

Preferably, the detection probe is electrically connected with the controller, and the controller is electrically connected with the alarm.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model discloses hydrogen detection device is through setting up the collar in the urea production tail gas, the threaded rod, fly leaf and solid fixed ring, in the use, can pass through the cooperation between the collar with the body, install it on exhaust gas pipeline, make waste gas through the test probe of body inner wall, and simultaneously, the cooperation of the solid fixed ring of accessible and fly leaf, the screw cap rotates, make the screw cap oppress the fly leaf, the fly leaf oppresses the body, thereby fix the fixed block on the body, through the design of spool, with the wire cross-under in the spool, avoid wherein directly exposing in waste gas, increase of service life, in the use, only need with the wire socket on the test probe peg graft in the plug can, convenient to use.

2. The utility model discloses hydrogen detection device is through setting up test probe, controller and alarm in the urea production tail gas, in the use, test probe measures the hydrogen in the geminate transistor body, when the measured value reaches the alarm value of settlement, control alarm sends audible-visual annunciation, output control signal (switching value contact output) simultaneously, suggestion operating personnel in time takes the safety handling measure, moreover, the steam generator is simple in structure, it is convenient to use, be convenient for detect the hydrogen concentration in the exhaust gas pipeline, can in time remind the staff, the potential safety hazard is reduced.

Drawings

fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

Fig. 3 is a schematic top view of the present invention;

Fig. 4 is a schematic view of an electrical connection structure of the present invention.

In the figure: 1. a fixing ring; 2. a pipe body; 3. detecting a probe; 4. a fixed mount; 5. a conduit; 6. a threaded rod; 7. a threaded cap; 8. mounting grooves; 9. a placement groove; 10. a plug; 11. an alarm; 12. a fixed block; 13. a controller; 14. a fixing bolt; 15. a movable plate; 16. a tail gas pipe; 17. a first mounting ring; 18. a second mounting ring; 19. and connecting the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a hydrogen detection device in urea production tail gas, including solid fixed ring 1, body 2, fixed block 12, fly leaf 15 and exhaust pipe 16, the both ends symmetrical welding of body 2 has first collar 17, the inner wall welding of body 2 has mount 4, install test probe 3 on the mount 4, in the use, the welding has second collar 18 on the exhaust pipe 16, second collar 18 is through connecting bolt 19 and first collar 17 interconnect, can pass through the cooperation between the collar with body 2, install it on the exhaust gas pipeline, make waste gas through the test probe 3 of body 2 inner walls.

The outer surface at body 2 is fixed to solid fixed ring 1 movable mounting, and the both ends of solid fixed ring 1 all weld threaded rod 6, and fly leaf 15 activity is pegged graft on threaded rod 6, and threaded cap 7 is installed to the screw thread on the threaded rod 6, and threaded cap 7 is located the upper surface of fly leaf 15, and the cooperation of solid fixed ring 1 of accessible and fly leaf 15 rotates threaded cap 7 for threaded cap 7 oppresses fly leaf 15, and fly leaf 15 oppresses body 2, thereby fixes fixed block 12 on body 2.

The surface welding of test probe 3 has spool 5, test probe 3's model is MQ-D8, and is small, the high advantage of sensitivity, spool 5 deviates from the inner wall of test probe 3's one end welding at body 2, through the design of spool 5, with the wire cross-under in spool 5, avoid wherein directly exposing in waste gas, increase of service life, plug 10 has been seted up to the lower surface of fixed block 12, the position of plug 10 is corresponding with spool 5's position, during the use, only need with test probe 3 on the wire socket peg graft in plug 10 can, convenient to use.

The fixed block 12 is fixed on the upper surface of the movable plate 15, the fixed block 12 is provided with a mounting groove 8, the upper surface of the fixed block 12 is provided with a placing groove 9, a controller 13 is mounted in the mounting groove 8 through a fixing bolt 14, an alarm 11 is fixed in the placing groove 9, the detection probe 3 is electrically connected with the controller 13, the controller 13 is electrically connected with the alarm 11, in the using process, the detection probe 3 measures the hydrogen in the pipe body 2, when the measured value reaches the set alarm value, the model of the controller 13 is M68HC05, the alarm has the advantages of small volume, high precision and the like, the controller 13 controls the alarm 11 to send out audible and visual alarm, the model of the alarm 11 is TGSG-07, the alarm has the advantages of small volume and low energy consumption, and simultaneously outputs a control signal (switching value contact output) to prompt an operator to take safety treatment measures in time, the structure is, the hydrogen concentration in the waste gas pipeline is convenient to detect, the staff can be reminded in time, and the potential safety hazard is reduced.

The working principle is as follows: the utility model discloses hydrogen detection device in urea production tail gas is in the use, can pass through the cooperation between the collar with body 2, install it on exhaust gas pipeline, make waste gas pass through the test probe 3 of body 2 inner wall, simultaneously, through the cooperation of solid fixed ring 1 and fly leaf 15, screw cap 7 is rotated, make screw cap 7 oppress fly leaf 15, fly leaf 15 oppresses body 2, thereby fix fixed block 12 on body 2, through the design of spool 5, cross the wire in spool 5, avoid wherein directly exposing in waste gas, the life is prolonged, in the time of using, only need to peg graft the wire socket on the test probe 3 in plug 10 can, test probe 3 measures the hydrogen in body 2, when the measured value reaches the alarm value of settlement, controller 13 control alarm 11 sends audible-visual annunciation, output control signal (switching value contact output) simultaneously, and prompting an operator to take safety treatment measures in time.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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 (6)

1. The utility model provides a hydrogen detection device in urea production tail gas, includes solid fixed ring (1), body (2), fixed block (12), fly leaf (15) and exhaust pipe (16), its characterized in that: the utility model discloses a pipe body, including body (2), threaded rod (6), fixed ring (1), threaded rod (7), threaded cap (7), fixed block (12), mounting groove (9) have been seted up to the upper surface of fixed block (12), the both ends symmetrical welding of body (2) has first collar (17), and the inner wall welding of body (2) has mount (4), installs test probe (3) on mount (4), fixed ring (1) movable mounting is at the surface of body (2), and the both ends of fixed ring (1) all weld threaded rod (6), fly leaf (15) activity is pegged graft on threaded rod (6), and threaded rod (6) are gone up the screw thread and are installed threaded cap (7), and threaded cap (7) are located the upper surface of fly leaf (15), fixed block (12) are fixed at the upper.

2. The device for detecting hydrogen in urea production tail gas according to claim 1, characterized in that: the tail gas pipe (16) is welded with a second mounting ring (18), and the second mounting ring (18) is connected with the first mounting ring (17) through a connecting bolt (19).

3. The device for detecting hydrogen in urea production tail gas according to claim 1, characterized in that: the surface welding of test probe (3) has spool (5), and spool (5) deviate from the one end welding of test probe (3) at the inner wall of body (2).

4. the device for detecting hydrogen in urea production tail gas according to claim 1, characterized in that: the lower surface of the fixing block (12) is provided with a plug (10), and the position of the plug (10) corresponds to the position of the line pipe (5).

5. The device for detecting hydrogen in urea production tail gas according to claim 1, characterized in that: the mounting groove (8) is internally provided with a controller (13) through a fixing bolt (14), and the placing groove (9) is internally fixed with an alarm (11).

6. The device for detecting hydrogen in urea production tail gas according to claim 5, characterized in that: the detection probe (3) is electrically connected with the controller (13), and the controller (13) is electrically connected with the alarm (11).