Device for accurately measuring liquid level of ammonia still

Abstract

The utility model relates to the technical field of coal coking, and provides a device for accurately measuring the liquid level of an ammonia still, which comprises an ammonia still I, a rotating ring and an ammonia still II, the height of the ammonia distillation tower II is lower than that of the ammonia distillation tower I; one side of the ammonia distillation tower I is connected with the rotating ring, the other end of the ammonia distillation tower I is connected with the outer side wall of the ammonia distillation tower II, and brackets II and brackets I are mounted at the bottoms of the ammonia distillation tower I and the ammonia distillation tower II; the rotating ring comprises a locking ring, and the locking ring is arranged towards the right side; and a capillary pressure transmitter is arranged on the rotating ring. When the ammonia still liquid level measuring device is used, the capillary pressure transmitter and the pressure sensor are arranged at the positions of the upper flange and the lower flange, the capillary is filled with certain liquid, the liquid in the capillary is isolated from a measuring medium, the effect of transmitting pressure is achieved, meanwhile, freezing prevention can be further achieved in winter, and it is guaranteed that the ammonia still liquid level is accurately measured. Therefore, the ammonia distillation process requirements are met, and the maintenance workload of maintainers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal coking, and more specifically to a device for accurately measuring the liquid level of an ammonia distillation tower. Background Art

[0002] In the ammonia evaporation process of the coking plant, the remote level gauge of the ammonia evaporation tower adopts a differential pressure level transmitter of an ordinary stainless steel pressure pipe, which can basically work normally when the temperature is above 0℃. However, in winter, the medium stored in the ordinary pressure pipe is the measuring medium. Since the pressure pipe is installed outdoors, the ammonia-water mixed medium in the pressure pipe often freezes, causing errors in the measured liquid level, seriously affecting the normal regulation of the ammonia evaporation process. It is very difficult for maintenance workers to handle this fault. Often, the medium freezes again just after it is handled, and the level gauge does not work normally at all. Therefore, insulation and heating are done on the pressure pipe, which has improved the situation. However, since the medium in the pressure pipe contains a small amount of tar and the temperature is slightly low, it is easy to freeze, and this problem has not been completely solved.

[0003] Therefore, we propose a device for accurately measuring the liquid level of the ammonia distillation tower to solve the above problems. Utility Model Content

[0004] Technical issues to be solved

[0005] In view of the problems existing in the prior art, the utility model aims to provide a device for accurately measuring the liquid level of an ammonia distillation tower, which solves the problem that the medium in the pressure pipe contains a small amount of tar and is easy to freeze when the temperature is slightly low.

[0006] Technical Solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A device for accurately measuring the liquid level of an ammonia still tower comprises an ammonia still tower 1, a rotating ring and an ammonia still tower 2;

[0009] The height of the ammonia still tower 2 is lower than that of the ammonia still tower 1;

[0010] One side of the ammonia still tower 1 is connected to the rotating ring, and the other end of the ammonia still tower 1 is connected to the outer wall of the ammonia still tower 2, and the bottoms of the ammonia still tower 1 and the ammonia still tower 2 are both installed with a bracket 2 and a bracket 1;

[0011] The rotating ring includes a locking ring, and the locking ring is arranged toward the right side;

[0012] A capillary pressure transmitter is arranged on the rotating ring.

[0013] Preferably, a mounting plate is installed on the outer side of the capillary pressure transmitter, and a plurality of through holes are formed on the inner wall of the mounting plate.

[0014] Preferably, the capillary pressure transmitter comprises an annular sealing ring, and the sealing ring is hollow.

[0015] Preferably, the rotating ring comprises a rotating rod and an opening section, an annular ring 2 is installed on the outer side of the rotating rod, an annular ring 1 is installed on one side of the annular ring 2, and a locking ring is installed on one side of the annular ring 1;

[0016] A slide groove is provided inside the opening joint, a joint ring is installed on one side of the slide groove, and a fixing ring is installed on the other end of the joint ring. The fixing ring is slidably connected inside the slide groove.

[0017] Preferably, a bolt is installed at the bottom of the sealing ring, a through pipe is installed at the bottom of the bolt, and an annular tube is installed at the bottom of the through pipe.

[0018] Preferably, an ammonia evaporation tower 2 is installed on one side of the annular tube, a hose is provided on the left side wall of the ammonia evaporation tower 2, a bracket 1 is provided on the lower side wall of the hose, and a conveying pipe is installed on the lower side wall of the ammonia evaporation tower 2.

[0019] Preferably, the connection between the upper side wall of the hose and the annular tube is configured as an inwardly recessed rounded corner.

[0020] Preferably, the sealing ring is made of stainless steel.

[0021] Beneficial effects: Compared with the prior art, the advantages of the utility model are:

[0022] With the capillary pressure transmitter, the pressure is sensed at the upper and lower flanges. The capillary is filled with a certain liquid. The liquid in the capillary is isolated from the measuring medium, which plays a role in transmitting pressure. At the same time, it can further prevent freezing in winter and ensure accurate measurement of the liquid level of the ammonia distillation tower. This meets the requirements of the ammonia distillation process and reduces the maintenance workload of maintenance workers.

[0023] At the same time, during installation, personnel can drive the rotating rod to rotate by rotating the rotating ring. At the same time, the annular ring 1 and the rotating rod are also rotated by the rotation of the rotating rod. At the same time, the rotating rod is docked with the fixed ring. The rotation of the rotating rod will drive the section ring to slide inside the opening section. Since a slide groove is provided inside the opening section and the section ring is larger than the outer port of the opening section, the slide groove will be driven to open, thereby facilitating the installation of the capillary pressure transmitter on the ammonia distillation tower 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the main structure of the ammonia distillation tower of the utility model;

[0026] Figure 3 It is a side view structural diagram of the capillary pressure transmitter of the utility model;

[0027] Figure 4 It is a side structural schematic diagram of the rotating ring of the utility model.

[0028] The accompanying drawings in the figure are marked as follows:

[0029] 11. Ammonia still tower 1; 12. Capillary pressure transmitter; 13. Ammonia still tower 2; 14. Hose; 15. Bracket 1; 16. Delivery pipe; 17. Bracket 2; 18. Mounting plate; 19. Bolt; 110. Sealing ring; 111. Through pipe; 112. Ring pipe;

[0030] 22. rotating ring; 23. annular ring 1; 24. rotating rod; 25. annular ring 2; 26. locking ring;

[0031] 27. slideway; 28. opening section; 29. ​​section ring; 210. fixing ring;

[0032] 33. Through hole. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0034] The embodiment of the present application provides a device for accurately measuring the liquid level of the ammonia distillation tower, thereby solving the problem that the medium in the pressure pipe contains a small amount of tar and is easily frozen due to slightly low temperature. When in use, the temperature balance of the medium in the pressure pipe is achieved, and installation is facilitated.

[0035] See also Figure 1 - Figure 4 , a device for accurately measuring the liquid level of an ammonia still tower, comprising an ammonia still tower 11, a rotating ring 22 and an ammonia still tower 2 13;

[0036] The height of the second ammonia still tower 13 is lower than that of the first ammonia still tower 11;

[0037] One side of the ammonia still 11 is connected to the rotating ring 22, and the other end of the ammonia still 11 is connected to the outer wall of the ammonia still 2 13, and the bottoms of the ammonia still 11 and the ammonia still 2 13 are both installed with a bracket 2 17 and a bracket 15;

[0038] The rotating ring 22 includes a locking ring 26, and the locking ring 26 is arranged toward the right side;

[0039] A capillary pressure transmitter 12 is arranged on the rotating ring 22. The advantage of such arrangement is that, through the use of the rotating ring 22, it is convenient for the operator to disassemble and install the capillary pressure transmitter 12, thereby reducing the disassembly time when replacement is required during use. In addition, the height of the ammonia evaporation tower 13 is lower than that of the ammonia evaporation tower 11, which is conducive to the capillary pressure transmitter 12 to detect the internal liquid.

[0040] In a further embodiment, a mounting plate 18 is installed on the outer side of the capillary pressure transmitter 12, and a plurality of through holes 33 are opened on the inner wall of the mounting plate 18. The advantage of such a configuration is that the plurality of through holes 33 can increase the stability of the rotating ring 22, thereby increasing the supporting effect on the capillary pressure transmitter 12 and ensuring the stability of the capillary pressure transmitter 12 on the ammonia evaporation tower 11.

[0041] In a further embodiment, the capillary pressure transmitter 12 includes an annular sealing ring 110, and the sealing ring 110 is hollow. The advantage of such a setting is that the hollow setting of the sealing ring 110 can reduce material consumption. At the same time, the hollow sealing of the sealing ring 110 has a certain buffering effect. When the liquid is detected, corrosion to the capillary pressure transmitter 12 will occur, and the capillary pressure transmitter 12 is also safe enough.

[0042] In a further embodiment, the rotating ring 22 includes a rotating rod 24 and an opening section 28, an annular ring 25 is installed on the outer side of the rotating rod 24, an annular ring 1 23 is installed on one side of the annular ring 25, and a locking ring 26 is installed on one side of the annular ring 1 23;

[0043] A slide groove 27 is provided inside the opening section 28, and a node ring 29 is installed on one side of the slide groove 27. A fixed ring 210 is installed on the other end of the node ring 29. The fixed ring 210 is slidably connected inside the slide groove 27. The advantage of this arrangement is that the rotation of the rotating ring 22 drives the rotating rod 24 to rotate. At the same time, the annular ring 23 and the rotating rod 24 are also rotated by the rotation of the rotating rod 24. At the same time, the rotating rod 24 is docked with the fixed ring 210. Under the rotation of the rotating rod 24, the node ring 29 will be driven to slide inside the opening section 28. Since the slide groove 27 is provided inside the opening section 28 and the node ring 29 is larger than the outer port of the opening section 28, the slide groove 27 will be driven to open at this time, thereby facilitating the installation of the capillary pressure transmitter 12 on the ammonia distillation tower 11.

[0044] In a further embodiment, a bolt 19 is installed at the bottom of the sealing ring 110, a through pipe 111 is installed at the bottom of the bolt 19, and an annular pipe 112 is installed at the bottom of the through pipe 111. The advantage of this arrangement is that the use of the through pipe 111 can facilitate the provision of stability in the transmission of the liquid transported through the ammonia distillation tower 11.

[0045] In a further embodiment, an ammonia evaporation tower 13 is installed on one side of the annular tube 112, a hose 14 is provided on the left side wall of the ammonia evaporation tower 13, a bracket 15 is provided on the lower side wall of the hose 14, and a conveying pipe 16 is installed on the lower side wall of the ammonia evaporation tower 13. The advantage of this arrangement is that the hose 14 provided on the left side wall of the ammonia evaporation tower 13 can collect the transmitted liquid, and at the same time, the bracket 15 installed at the bottom of the ammonia evaporation tower 13 can provide stability when it is convenient to use.

[0046] In a further embodiment, the connection between the upper side wall of the hose 14 and the annular tube 112 is configured as an inwardly recessed rounded corner. The advantage of such a configuration is that it can reduce the friction between the annular tube 112 and the hose 14 and protect the safety of the hose 14.

[0047] In a further embodiment, the sealing ring 110 is made of stainless steel. The advantage of this arrangement is that stainless steel is not easily damaged.

[0048] During use, personnel can drive the rotating rod 24 to rotate by rotating the rotating ring 22. At the same time, the annular ring 23 and the rotating rod 24 are also rotated by the rotation of the rotating rod 24. At the same time, the rotating rod 24 is docked with the fixed ring 210. The rotation of the rotating rod 24 will drive the section ring 29 to slide inside the opening section 28. Since a slide groove 27 is provided inside the opening section 28, and the section ring 29 is larger than the outer port of the opening section 28, the slide groove 27 will be driven to open at this time, thereby facilitating the installation of the capillary pressure transmitter 12 on the ammonia evaporation tower 11. When used later, the ammonia evaporation tower remote level gauge in the ammonia evaporation process adopts a differential pressure level transmitter of an ordinary stainless steel pressure pipe. The stainless steel pressure pipe is led out through a DN80 flange on site. Since there is no platform for on-site installation, it is not easy to install the DN80 diaphragm capillary differential pressure transmitter. Through on-site observation, it is found that it is relatively easy to transform the DN20 flange magnetic flap level gauge into a diaphragm capillary differential pressure transmitter. At this time, a DN20 diaphragm capillary differential pressure transmitter is installed. After the level gauge is installed, the original remote level gauge signal cable of the ammonia distillation tower is removed and connected to the terminal of the newly installed DN20 diaphragm capillary differential pressure transmitter, and then the differential pressure level gauge range is migrated. The above is only a preferred specific implementation method of the utility model; however, the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed in the utility model, according to the technical scheme of the utility model and its improved conception, shall be equivalently replaced or changed, which shall be covered within the protection scope of the utility model.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0050] 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 aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for accurately measuring the liquid level of an ammonia distillation tower, characterized in that: It comprises an ammonia still tower 1 (11), a rotating ring (22) and an ammonia still tower 2 (13); The height of the second ammonia evaporation tower (13) is lower than the height of the first ammonia evaporation tower (11); One side of the ammonia evaporation tower 1 (11) is connected to the rotating ring (22), and the other end of the ammonia evaporation tower 1 (11) is connected to the outer wall of the ammonia evaporation tower 2 (13), and the bottoms of the ammonia evaporation tower 1 (11) and the ammonia evaporation tower 2 (13) are both installed with a bracket 2 (17) and a bracket 1 (15); The rotating ring (22) comprises a locking ring (26), and the locking ring (26) is arranged toward the right side; A capillary pressure transmitter (12) is arranged on the rotating ring (22).

2. The device for accurately measuring the liquid level of an ammonia distillation tower according to claim 1, characterized in that: A mounting plate (18) is mounted on the outer side of the capillary pressure transmitter (12), and a plurality of through holes (33) are formed on the inner wall of the mounting plate (18).

3. The device for accurately measuring the liquid level of an ammonia distillation tower according to claim 1, characterized in that: The capillary pressure transmitter (12) comprises an annular sealing ring (110), and the sealing ring (110) is hollow.

4. The device for accurately measuring the liquid level of an ammonia distillation tower according to claim 1, characterized in that: The rotating ring (22) comprises a rotating rod (24) and an opening section (28), an annular ring 2 (25) is installed on the outer side of the rotating rod (24), an annular ring 1 (23) is installed on one side of the annular ring 2 (25), and a locking ring (26) is installed on one side of the annular ring 1 (23); A slide groove (27) is provided inside the opening section (28), a section ring (29) is installed on one side of the slide groove (27), and a fixing ring (210) is installed on the other end of the section ring (29), and the fixing ring (210) is slidably connected inside the slide groove (27).

5. The device for accurately measuring the liquid level of an ammonia distillation tower according to claim 3, characterized in that: A bolt (19) is installed at the bottom of the sealing ring (110), a through pipe (111) is installed at the bottom of the bolt (19), and an annular pipe (112) is installed at the bottom of the through pipe (111).

6. The device for accurately measuring the liquid level of an ammonia distillation tower according to claim 5, characterized in that: A second ammonia evaporation tower (13) is installed on one side of the annular tube (112), a hose (14) is provided on the left side wall of the second ammonia evaporation tower (13), a bracket (15) is provided on the lower side wall of the hose (14), and a conveying pipe (16) is installed on the lower side wall of the second ammonia evaporation tower (13).

7. The device for accurately measuring the liquid level of an ammonia distillation tower according to claim 6, characterized in that: The connection between the upper side wall of the hose (14) and the annular tube (112) is configured as an inwardly recessed rounded corner.

8. The device for accurately measuring the liquid level of an ammonia distillation tower according to claim 3, characterized in that: The sealing ring (110) is made of stainless steel.

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