Special vacuum unit for diaminodiphenyl ether

Abstract

The utility model belongs to the technical field of diaminodiphenyl ether preparation equipment, and particularly relates to a special vacuum unit for diaminodiphenyl ether, which comprises a bottom plate, a storage tank fixedly mounted at the top of the bottom plate, a support block fixedly connected to the top of the bottom plate, a vacuum pump fixedly mounted at the top of the support block, and a cooling pipe embedded in the storage tank. And a heat dissipation assembly is fixedly mounted at the top of the supporting block. The vacuum pump comprises a shell, a driving motor, a first belt pulley, a rotating piece, an air inlet pipe and an exhaust pipe, the shell is fixedly installed at the top of the supporting block, the driving motor is fixedly installed in the shell, the first belt pulley is fixedly installed at the output end of the driving motor, and the rotating piece is fixedly installed at the output end of the first belt pulley; the outer wall of the shell is fixedly connected with an air inlet pipe, and the top of the shell is fixedly connected with an exhaust pipe. The storage tank can be automatically cooled while vacuumizing is carried out, and the situation that the stability of the vacuum degree is affected due to the fact that the temperature of the storage tank is too high is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of diphenyl ether diamine preparation equipment, and specifically relates to a special vacuum unit for diphenyl ether diamine. Background Art

[0002] Diphenyl ether diamine (abbreviated as DADPE) is an important organic synthesis intermediate, which is widely used in the preparation of high-performance polyimide resins, special rubbers, electronic chemicals and other fields. Due to its unique chemical structure and excellent physical and chemical properties, diphenyl ether diamine has extremely high application value in the production process under high temperature and high vacuum environments. The preparation process of diphenyl ether diamine usually needs to be carried out under strict vacuum conditions to ensure the efficiency of the reaction and the purity of the product. Therefore, the stability and efficiency of the vacuum system are crucial. The preparation of diphenyl ether diamine usually uses special vacuum pump equipment for diphenyl ether diamine.

[0003] Although the existing vacuum pump equipment can provide the required vacuum degree, when dealing with chemical substances containing volatile or heat-sensitive components such as diphenyl ether diamine, it cannot effectively cool, easily causes the equipment to overheat, affects the stability of the vacuum degree, and even leads to safety accidents. Summary of the Invention

[0004] The purpose of the utility model is to provide a special vacuum unit for diphenyl ether diamine, which can automatically cool the storage tank while evacuating, and prevent the temperature of the storage tank from being too high and affecting the stability of the vacuum degree.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: provide a special vacuum unit for diphenyl ether diamine, including a bottom plate, a storage tank is fixedly installed on the top of the bottom plate, a support block is fixedly connected to the top of the bottom plate, a vacuum pump is fixedly installed on the top of the support block, a cooling pipe is embedded in the interior of the storage tank, and a heat dissipation component is fixedly installed on the top of the support block.

[0006] Furthermore, the vacuum pump includes a housing, a driving motor, a first pulley, a rotating vane, an air inlet pipe and an exhaust pipe. The housing is fixedly installed on the top of the support block, the driving motor is fixedly installed inside the housing, the output end of the driving motor is fixedly installed with the first pulley, the output end of the first pulley is fixedly installed with the rotating vane, the outer wall of the housing is fixedly connected with the air inlet pipe, and the top of the housing is fixedly connected with the exhaust pipe.

[0007] Further, the heat dissipation component includes a mounting block, a support frame, a bearing, a fan, a filter screen, and a heat dissipation pipe. A mounting block is fixedly installed on the top of the support block. The mounting block is located on one side of the housing. A support frame is fixedly installed inside the mounting block. A bearing is fixedly installed inside the support frame. A fan is fixedly installed inside the bearing. A filter screen is fixedly installed on the outer wall of the mounting block. A heat dissipation pipe is fixedly connected to the cooling pipe. The heat dissipation pipe is located inside the mounting block.

[0008] Further, a second pulley is fixedly connected to the outer wall of the fan. A driving belt is fixedly installed between the first pulley and the second pulley.

[0009] Further, a feed valve is fixedly installed on the top of the storage tank. An exhaust check valve is fixedly installed on the outer wall of the storage tank. The exhaust check valve is connected to the intake pipe. A discharge valve is fixedly installed on the outer wall of the storage tank.

[0010] Further, a liquid injection valve is fixedly installed on the outer wall of the cooling pipe. A water pump is fixedly installed on the cooling pipe.

[0011] Further, a universal wheel set is fixedly installed at the bottom of the bottom plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model is provided with a storage tank, a vacuum pump, a driving motor, a first pulley, a cooling pipe, a heat dissipation pipe, a liquid injection valve, a mounting block, a fan, a filter screen, a second pulley, and a driving belt. When in use, while the vacuum pump discharges the air inside the storage tank, the water pump is turned on so that the coolant inside the cooling pipe can circulate and move, absorb the heat generated by the storage tank, and then the high-temperature coolant enters the heat dissipation pipe. The driving motor works, and the output end of the driving motor drives the first pulley to rotate. The second pulley is driven to rotate simultaneously through the driving belt, thereby driving the fan to rotate, sucking the outside air into the inside of the mounting block, and then blowing it towards the heat dissipation pipe to cool the high-temperature coolant in the heat dissipation pipe, so that it cools down and circulates again to reduce the temperature of the equipment. The utility model can automatically cool the storage tank while performing vacuum pumping, preventing the temperature of the storage tank from being too high and affecting the stability of the vacuum degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic three-dimensional structure diagram of the first perspective of the present utility model;

[0016] Figure 2 It is a schematic three-dimensional structure diagram of the second perspective of the present utility model;

[0017] Figure 3 It is a schematic three-dimensional structure diagram of a partial section of the present utility model;

[0018] Figure 4 is Figure 3 an enlarged structure diagram of part A in

[0019] In the figure: 1, bottom plate; 101, universal wheel set; 2, storage tank; 201, feed valve; 202, exhaust check valve; 203, discharge valve; 3, support block; 4, vacuum pump; 401, housing; 402, drive motor; 403, first pulley; 404, rotating vane; 405, intake pipe; 406, exhaust pipe; 5, cooling pipe; 501, heat dissipation pipe; 502, liquid injection valve; 503, water pump; 6, mounting block; 601, support frame; 602, bearing; 603, fan; 604, filter screen; 7, second pulley; 8, drive belt. Specific embodiments

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0023] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0024] Referring to Figures 1-4 , the special vacuum unit for diaminodiphenyl ether provided by the embodiments of the present utility model will now be described. The special vacuum unit for diaminodiphenyl ether includes a bottom plate 1, a storage tank 2 is fixedly installed on the top of the bottom plate 1, a support block 3 is fixedly connected to the top of the bottom plate 1, a vacuum pump 4 is fixedly installed on the top of the support block 3, a cooling pipe 5 is embedded in the interior of the storage tank 2, and a heat dissipation component is fixedly installed on the top of the support block 3, and the heat dissipation component is used for dissipating heat from the cooling pipe 5.

[0025] During use, the diaminodiphenyl ether to be processed is added into the interior of the storage tank 2, and then the vacuum pump 4 is started to pump the air in the storage tank 2 to a vacuum state. While the vacuum is being pumped, the heat in the storage tank 2 can be absorbed by the coolant in the cooling pipe 5, and at the same time, the heat dissipation component dissipates the heat of the coolant in the cooling pipe 5.

[0026] The vacuum pump 4 includes a housing 401, a drive motor 402, a first pulley 403, a rotating vane 404, an intake pipe 405, and an exhaust pipe 406. The housing 401 is fixedly installed on the top of the support block 3, the drive motor 402 is fixedly installed inside the housing 401, the output end of the drive motor 402 is fixedly installed with the first pulley 403, the output end of the first pulley 403 is fixedly installed with the rotating vane 404, the outer wall of the housing 401 is fixedly connected with the intake pipe 405, and the top of the housing 401 is fixedly connected with the exhaust pipe 406.

[0027] During use, the drive motor 402 is started, the output end of the drive motor 402 drives the first pulley 403 to rotate, and at the same time drives the rotating vane 404 in front of the first pulley 403 to rotate, so as to draw the air inside the storage tank 2 into the intake pipe 405, and the air is then discharged through the exhaust pipe 406. By continuously rotating the rotating vane 404, the air inside the storage tank 2 can be discharged to a vacuum state.

[0028] The heat dissipation component includes a mounting block 6, a support frame 601, a bearing 602, a fan 603, a filter net 604, and a heat dissipation pipe 501. A mounting block 6 is fixedly installed on the top of the support block 3. The mounting block 6 is located on one side of the housing 401. A support frame 601 is fixedly installed inside the mounting block 6. A bearing 602 is fixedly installed inside the support frame 601. A fan 603 is fixedly installed inside the bearing 602. A filter net 604 is fixedly installed on the outer wall of the mounting block 6. A heat dissipation pipe 501 is fixedly connected to the cooling pipe 5. The heat dissipation pipe 501 is located inside the mounting block 6.

[0029] During use, high-temperature coolant enters the heat dissipation pipe 501. The rotation of the fan 603 draws external air into the inside of the mounting block 6 and then blows it towards the heat dissipation pipe 501 to cool the high-temperature coolant in the heat dissipation pipe 501.

[0030] A second pulley 7 is fixedly connected to the outer wall of the fan 603. A drive belt 8 is fixedly installed between the first pulley 403 and the second pulley 7.

[0031] When the drive motor 402 works, the output end of the drive motor 402 drives the first pulley 403 to rotate, drives the second pulley 7 to rotate simultaneously through the drive belt 8, and then drives the fan 603 to rotate.

[0032] A feed valve 201 is fixedly installed on the top of the storage tank 2. An exhaust check valve 202 is fixedly installed on the outer wall of the storage tank 2. The exhaust check valve 202 is interconnected with the intake pipe 405. A discharge valve 203 is fixedly installed on the outer wall of the storage tank 2.

[0033] During use, the diamino diphenyl ether to be processed can be added into the storage tank 2 through the feed valve 201; the air in the storage tank 2 can be discharged through the exhaust check valve 202; the processed diamino diphenyl ether in the storage tank 2 can be discharged through the same discharge valve 203.

[0034] A liquid injection valve 502 is fixedly installed on the outer wall of the cooling pipe 5. A water pump 503 is fixedly installed on the cooling pipe 5.

[0035] During use, coolant can be injected into the inside of the cooling pipe 5 through the liquid injection valve 502, and then the water pump 503 is turned on to enable the coolant inside the cooling pipe 5 to circulate.

[0036] A universal wheel set 101 is fixedly installed at the bottom of the bottom plate 1.

[0037] During use, the universal wheel set 101 can be used to easily move the present utility model to a designated location.

[0038] Working principle: First, the diaminodiphenyl ether to be processed is added into the interior of the storage tank 2 through the feed valve 201; then, the driving motor 402 is started, and the output end of the driving motor 402 drives the first pulley 403 to rotate, and at the same time drives the rotating piece 404 at the front end of the first pulley 403, so as to draw the air inside the storage tank 2 into the intake pipe 405 through the exhaust check valve 202, and the air is then discharged through the exhaust pipe 406. The air inside the storage tank 2 can be discharged to a vacuum state through the continuous rotation of the rotating piece 404.

[0039] While the air inside the storage tank 2 is being discharged, the water pump 503 is turned on, which can make the coolant inside the cooling pipe 5 circulate and move, absorb the heat generated by the storage tank 2, and then the high-temperature coolant enters the radiating pipe 501, is cooled and then circulates again, so as to cool down the storage tank 2.

[0040] When the driving motor 402 drives the first pulley 403 to rotate, the second pulley 7 is driven to rotate simultaneously through the driving belt 8, so as to drive the fan 603 to rotate, draw the outside air into the interior of the mounting block 6, and then blow it towards the radiating pipe 501 to cool down the high-temperature coolant in the radiating pipe 501.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vacuum unit for diaminodiphenyl ether, comprising a bottom plate (1), characterized in that: A storage tank (2) is fixedly mounted on the top of the base plate (1), a support block (3) is fixedly connected to the top of the base plate (1), a vacuum pump (4) is fixedly mounted on the top of the support block (3), a cooling pipe (5) is embedded in the interior of the storage tank (2), and a heat dissipation component is fixedly mounted on the top of the support block (3).

2. The vacuum unit for diaminodiphenyl ether as claimed in claim 1, characterized in that: The vacuum pump (4) comprises a housing (401), a driving motor (402), a first pulley (403), a rotating plate (404), an air inlet pipe (405) and an exhaust pipe (406); the housing (401) is fixedly mounted on the top of the support block (3); the driving motor (402) is fixedly mounted inside the housing (401); the output end of the driving motor (402) is fixedly mounted with the first pulley (403); the output end of the first pulley (403) is fixedly mounted with the rotating plate (404); the outer wall of the housing (401) is fixedly connected with the air inlet pipe (405); and the top of the housing (401) is fixedly connected with the exhaust pipe (406).

3. The vacuum unit for diaminodiphenyl ether as claimed in claim 2, characterized in that: The heat dissipation component comprises a mounting block (6), a support frame (601), a bearing (602), a fan (603), a filter (604) and a heat dissipation pipe (501); the mounting block (6) is fixedly mounted on the top of the support block (3); the mounting block (6) is located on one side of the housing (401); the support frame (601) is fixedly mounted inside the mounting block (6); the bearing (602) is fixedly mounted inside the support frame (601); the fan (603) is fixedly mounted inside the bearing (602); the filter (604) is fixedly mounted on the outer wall of the mounting block (6); the heat dissipation pipe (501) is fixedly connected to the cooling pipe (5); and the heat dissipation pipe (501) is located inside the mounting block (6).

4. The vacuum unit for diaminodiphenyl ether as claimed in claim 3, characterized in that: The outer wall of the fan (603) is fixedly connected to a second belt pulley (7), and a driving belt (8) is fixedly installed between the first belt pulley (403) and the second belt pulley (7).

5. The vacuum unit for diaminodiphenyl ether as claimed in claim 1, characterized in that: A feed valve (201) is fixedly mounted on the top of the storage tank (2), an exhaust check valve (202) is fixedly mounted on the outer wall of the storage tank (2), the exhaust check valve (202) is interconnected with an intake pipe (405), and a discharge valve (203) is fixedly mounted on the outer wall of the storage tank (2).

6. The vacuum unit for diaminodiphenyl ether as claimed in claim 1, characterized in that: A liquid injection valve (502) is fixedly mounted on the outer wall of the cooling pipe (5), and a water pump (503) is fixedly mounted on the cooling pipe (5).

7. The vacuum unit for diaminodiphenyl ether as claimed in claim 1, characterized in that: A universal wheel set (101) is fixedly mounted on the bottom of the base plate (1).

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