Evaporation device for unsymmetrical dimethylhydrazine production

Abstract

The utility model discloses an evaporation device for unsymmetrical dimethylhydrazine production, which belongs to the field of evaporators and comprises a heater and a separator, the heater and the separator are respectively provided with a connecting pipe, one end of each connecting pipe is fixedly provided with a connecting plate, one connecting pipe is movably sleeved with a connecting structure, and the other connecting pipe is movably sleeved with a connecting plate. Each connecting structure is composed of a base ring and a plurality of square rods, the square rods are annularly distributed at one end of the base ring and can penetrate through the two connecting plates, the other connecting pipe is fixedly sleeved with a mounting ring, a plurality of fixing structures are mounted on the mounting ring, and each fixing structure is composed of a base block, an inserting block, a limiting plate and a supporting spring. By arranging the connecting plate, the connecting structure, the mounting ring and the fixing structure, the connecting plate, the connecting structure, the mounting ring and the fixing structure are matched with one another, so that the assembling steps of the heater and the separator can be simplified, the assembling efficiency of the heater and the separator can be improved, and then the production efficiency of unsymmetrical dimethylhydrazine can be improved.

Description

Technical Field

[0001] The utility model relates to the field of evaporators, in particular to an evaporator for producing unsymmetrical dimethylhydrazine. Background Art

[0002] Unsymmetrical dimethylhydrazine can be synthesized by reaction with ammonia water, ammonium chloride and dimethylamine as raw materials. First, ammonia water and sodium hypochlorite are respectively sent to a one-step reactor to react to generate chloroamines, and then the chloroamines are sent to a two-step reactor to synthesize with a dimethylamine aqueous solution to generate an unsymmetrical dimethylhydrazine aqueous solution, and then the synthetic liquid is sent to a series of distillation towers for further distillation and rectification to remove excess ammonia, dimethylamine and unsymmetrical hydrazone, and after adding alkali to concentrate and degas, the finished product is obtained. In the production process of dimethylhydrazine, it is often necessary to use an evaporator to evaporate and separate the raw materials of dimethylhydrazine. When using an evaporator to evaporate and separate the raw materials of dimethylhydrazine, the heater on the evaporator will heat and evaporate the raw materials, and the steam will enter the separator on the evaporator, so that the separator will separate the different components in the steam. However, since the heater and separator on the traditional evaporator are connected by flanges and bolts, such as an MVR-based rising film evaporator with application number CN201821131533.3, when assembling the heater and separator, it is necessary to use tools to install several bolts one by one on the flange. This process is cumbersome and troublesome, which will make the efficiency of assembling the heater and separator low, and further affect the production efficiency of unsymmetrical dimethylhydrazine, so it needs to be improved. Utility Model Content

[0003] The main purpose of the utility model is to provide an evaporation device for producing unsymmetrical dimethylhydrazine, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An evaporation device for producing unsymmetrical dimethylhydrazine comprises a heater and a separator, wherein each of the heater and the separator is provided with a connecting pipe, and a connecting plate is fixedly installed at one end of each of the two connecting pipes, wherein a movable sleeve on one of the connecting pipes is provided with a connecting structure, and the connecting structure is composed of a base ring and square rods, and the square rods are provided in a plurality and are distributed in an annular manner at one end of the base ring, and the square rods can pass through two connecting plates, and a fixed sleeve on the other connecting pipe is provided with a mounting ring, and a plurality of fixing structures are installed on the mounting ring, and the fixing structure is composed of a base block, an insert block, a limit plate and a support spring, the insert block is fixedly installed at the outer end of the base block, the limit plates are two and are symmetrically fixedly installed at the two ends of the base block, the support spring is fixedly installed at the inner end of the base block, and the insert block can be inserted into the square rod.

[0006] Preferably, the heater and the separator are both fixedly connected to the connecting pipes installed thereon.

[0007] Preferably, the connecting plate is provided with a plurality of square holes, and the plurality of square holes are distributed in a ring shape.

[0008] Preferably, the base ring on the connecting structure is movably mounted on one of the connecting tubes, the square rod is fixedly connected to the base ring, the square rod can pass through a square hole provided on the connecting plate, and a through hole is provided on the square rod, which penetrates the square rod inside and outside.

[0009] Preferably, the mounting ring is fixedly sleeved on one of the connecting pipes, a plurality of mounting grooves are provided on the outer wall of the mounting ring, the plurality of mounting grooves are distributed in a ring shape, and two limiting grooves are symmetrically provided on the inner wall of the mounting groove.

[0010] Preferably, the support spring on the fixed structure is located in the mounting groove, the base block is movably installed in the mounting groove, the limit plate is movably installed in the limit groove, and the insert block can be inserted into the through hole.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting a connecting plate, a connecting structure, a mounting ring and a fixing structure so that they cooperate with each other, the steps of assembling the heater and the separator can be simplified, thereby improving the efficiency of assembling the heater and the separator, and further improving the production efficiency of unsymmetrical dimethylhydrazine. When assembling the heater and the separator, the two connecting plates on the two connecting pipes can be brought into contact, and the square holes on the two connecting plates can be aligned. Then the connecting structure is moved so that the square rod passes through the square holes on the two connecting plates. After the square rod passes through the square hole, it will first squeeze the plug block, the base block and the limit plate on the fixing structure inward, so that the support spring will be compressed. When the base ring contacts the connecting plate, the plug block will be inserted into the through hole under the elastic force of the support spring. At this time, the heater and the separator are assembled together. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For the utility model Figure 1 A magnified view of point A;

[0015] Figure 3 It is a structural schematic diagram of the connecting pipe and the connecting plate of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the connection structure of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the mounting ring and the fixing structure of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the fixing structure of the utility model.

[0019] In the figure: 1. heater; 2. separator; 3. connecting pipe; 4. connecting plate; 5. connecting structure; 6. mounting ring; 7. fixing structure; 8. square hole; 9. base ring; 10. square rod; 11. through hole; 12. mounting groove; 13. limiting groove; 14. base block; 15. plug block; 16. limiting plate; 17. supporting spring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, an evaporation device for producing unsymmetrical dimethylhydrazine includes a heater 1 and a separator 2. A connecting pipe 3 is provided on the heater 1 and the separator 2. The heater 1 and the separator 2 are fixedly connected to the connecting pipe 3 installed thereon. A connecting plate 4 is fixedly installed at one end of the two connecting pipes 3. A connecting structure 5 is movably sleeved on one of the connecting pipes 3. The connecting structure 5 consists of a base ring 9 and a square rod 10. There are several square rods 10 and they are distributed in an annular shape at one end of the base ring 9. The square rods 10 can pass through the two connecting plates 4. A mounting ring 6 is fixedly sleeved on the other connecting pipe 3. Several fixing structures 7 are installed on the mounting ring 6. The fixing structure 7 consists of a base block 14, an insert block 15, a limit plate 16 and a support spring 17. The insert block 15 is fixedly installed on the outer end of the base block 14. There are two limit plates 16 and they are symmetrically fixedly installed at the two ends of the base block 14. The support spring 17 is fixedly installed on the inner end of the base block 14. The insert block 15 can be inserted into the square rod 10. Several square holes 8 are opened on the connecting plate 4. A plurality of square holes 8 are distributed in an annular shape, a base ring 9 on the connecting structure 5 is movably mounted on one of the connecting tubes 3, a square rod 10 is fixedly connected to the base ring 9, the square rod 10 can pass through the square hole 8 opened on the connecting plate 4, a through hole 11 is opened on the square rod 10, and the through hole 11 penetrates the square rod 10 inside and outside, a mounting ring 6 is fixedly mounted on one of the connecting tubes 3, a plurality of mounting grooves 12 are opened on the outer wall of the mounting ring 6, and the plurality of mounting grooves 12 are distributed in an annular shape, and two symmetrical mounting grooves 12 are opened on the inner wall of the mounting groove 12. A limiting groove 13 is formed, a supporting spring 17 on the fixing structure 7 is located in the mounting groove 12, a base block 14 is movably installed in the mounting groove 12, a limiting plate 16 is movably installed in the limiting groove 13, and an insert block 15 can be inserted into the through hole 11. By arranging the connecting plate 4, the connecting structure 5, the mounting ring 6 and the fixing structure 7 so that they cooperate with each other, the steps of assembling the heater 1 and the separator 2 can be simplified, thereby improving the efficiency of assembling the heater 1 and the separator 2, and further improving the production efficiency of unsymmetrical dimethylhydrazine.

[0022] It should be noted that the utility model is an evaporation device for the production of unsymmetrical dimethylhydrazine. Before use, the heater 1 and the separator 2 need to be assembled. During the assembly process, the two connecting plates 4 on the two connecting pipes 3 need to be contacted first, and the square holes 8 opened on the two connecting plates 4 need to be aligned. Then the connecting structure 5 is moved so that the square rod 10 passes through the square holes 8 on the two connecting plates 4. After the square rod 10 passes through the square hole 8, it will first squeeze the plug block 15, the base block 14 and the limit plate 16 on the fixed structure 7 inward, and at this time the support spring 17 will The base block 14 is compressed by the inward movement, and when the base ring 9 on the connecting structure 5 contacts the connecting plate 4, the plug block 15 moves outward under the elastic force of the supporting spring 17, and then the plug block 15 is inserted into the through hole 11, and the heater 1 and the separator 2 are assembled together. In the process of using the evaporator to process the unsymmetrical dimethylhydrazine raw material, the heater 1 heats the unsymmetrical dimethylhydrazine raw material, and the steam generated by the heated unsymmetrical dimethylhydrazine raw material enters the separator 2 along the connecting pipe 3, so that the separator 2 separates the different components in the steam.

[0023] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An evaporation device for producing unsymmetrical dimethylhydrazine, comprising a heater (1) and a separator (2), wherein each of the heater (1) and the separator (2) is provided with a connecting pipe (3), characterized in that: A connecting plate (4) is fixedly mounted on one end of each of the two connecting tubes (3); a connecting structure (5) is movably mounted on one of the connecting tubes (3); the connecting structure (5) is composed of a base ring (9) and a square rod (10); a plurality of square rods (10) are distributed in an annular shape at one end of the base ring (9); and the square rods (10) can pass through the two connecting plates (4); a mounting ring (6) is fixedly mounted on the other connecting tube (3); a plurality of fixing structures (7) are mounted on the mounting ring (6); the fixing structure (7) is composed of a base block (14), an insert block (15), a limit plate (16) and a support spring (17); the insert block (15) is fixedly mounted on the outer end of the base block (14); two limit plates (16) are symmetrically fixedly mounted on the two ends of the base block (14); the support spring (17) is fixedly mounted on the inner end of the base block (14); and the insert block (15) can be inserted into the square rod (10).

2. The evaporation device for producing unsymmetrical dimethylhydrazine according to claim 1, characterized in that: The heater (1) and the separator (2) are both fixedly connected to the connecting pipe (3) installed thereon.

3. An evaporation device for producing unsymmetrical dimethylhydrazine according to claim 2, characterized in that: The connecting plate (4) is provided with a plurality of square holes (8), and the plurality of square holes (8) are distributed in a ring shape.

4. An evaporation device for producing unsymmetrical dimethylhydrazine according to claim 3, characterized in that: The base ring (9) on the connecting structure (5) is movably sleeved on one of the connecting pipes (3); the square rod (10) is fixedly connected to the base ring (9); the square rod (10) can pass through a square hole (8) provided on the connecting plate (4); a through hole (11) is provided on the square rod (10); and the through hole (11) penetrates the square rod (10) inside and outside.

5. An evaporation device for producing unsymmetrical dimethylhydrazine according to claim 4, characterized in that: The mounting ring (6) is fixedly sleeved on one of the connecting pipes (3); a plurality of mounting grooves (12) are provided on the outer wall of the mounting ring (6); the plurality of mounting grooves (12) are distributed in a ring shape; and two limiting grooves (13) are symmetrically provided on the inner wall of the mounting groove (12).

6. An evaporation device for producing unsymmetrical dimethylhydrazine according to claim 5, characterized in that: The support spring (17) on the fixed structure (7) is located in the installation groove (12), the base block (14) is movably installed in the installation groove (12), the limit plate (16) is movably installed in the limit groove (13), and the insert block (15) can be inserted into the through hole (11).

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