CN211864799U

CN211864799U - Vacuum system

Info

Publication number: CN211864799U
Application number: CN201922370582.3U
Authority: CN
Inventors: 林键津; 施小华; 胡浩林; 杨柳青
Original assignee: Guangzhou Baiyun Chemical Industry Co Ltd
Current assignee: Guangzhou Baiyun Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-11-06
Anticipated expiration: 2029-12-24

Abstract

The utility model belongs to the technical field of sealed glue, a vacuum system is disclosed, include: the air inlet is communicated with the kneading machine and is used for introducing waste gas generated in the kneading machine; the air inlet condenser is communicated with the air inlet and is used for cooling the waste gas entering from the air inlet; the buffer tank is communicated with the downstream of the air inlet condenser and is used for collecting the condensed pollutants; the vacuum pump set comprises a first vacuum pump and a second vacuum pump, the second vacuum pump is arranged in series with the first vacuum pump, and the first vacuum pump is communicated with the buffer tank; and the exhaust port is communicated with the second vacuum pump and used for exhausting the extracted waste gas. The vacuum system has the advantages of low energy consumption, electric energy saving, reduction of pollutants in discharged waste gas and contribution to environmental protection.

Description

Vacuum system

Technical Field

The utility model relates to a sealed glue technical field especially relates to a vacuum system.

Background

In the process of producing the sealant, the vacuum degree is particularly important for the production process, and a certain vacuum degree is required in the production process no matter in an intermittent production mode or a continuous production mode.

In the batch production process, a vacuum system having a vacuum pump is generally provided to generate a vacuum. During production, vacuum needs to be removed when the kneader is used for first feeding and midway feeding in the working process, and the preset vacuum degree needs to be quickly reached in the stirring process, so that a vacuum system is always in a non-stop working state, and a large amount of electric energy is easily wasted due to high energy consumption.

In addition, in the existing vacuum system, the exhaust gas generated by extraction is usually directly discharged into the atmosphere without treatment, and because the exhaust gas pollutants extracted from the vacuum system are mainly methanol, water and isopropanol, the exhaust gas is not only easy to cause environmental pollution, but also waste of such substances, and the economical efficiency is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vacuum system, this vacuum system not only the energy consumption is lower, saves the electric energy, but also can reduce the pollutant in the emission waste gas, is favorable to environmental protection.

To achieve the purpose, the utility model adopts the following technical proposal:

a vacuum system, comprising:

the gas inlet is communicated with the kneading machine and is used for introducing waste gas generated in the kneading machine;

the air inlet condenser is communicated with the air inlet and is used for cooling the waste gas entering from the air inlet;

the buffer tank is communicated with the downstream of the air inlet condenser and is used for collecting the condensed pollutants;

the vacuum pump set comprises a first vacuum pump and a second vacuum pump, the second vacuum pump is arranged in series with the first vacuum pump, and the first vacuum pump is communicated with the buffer tank;

and the exhaust port is communicated with the second vacuum pump and used for exhausting the extracted waste gas.

Preferably, the cooling system further comprises a cooling pipeline, cooling water or chilled water is introduced into the cooling pipeline, and the cooling pipeline is communicated with the air intake condenser and the second vacuum pump and is used for cooling the air intake condenser and the second vacuum pump.

Preferably, the device further comprises a collector which is communicated with the downstream of the second vacuum pump and is used for collecting the condensed pollutants.

Preferably, the exhaust gas treatment device is further included, and the exhaust gas treatment device is communicated between the second vacuum pump and the exhaust port and is used for treating the exhaust gas.

Preferably, the tail gas processing device comprises an exhaust condenser and a tail gas tank, the exhaust condenser is communicated between the exhaust port and the top of the tail gas tank, the tail gas tank is communicated with the second vacuum pump, and the tail gas tank can collect pollutants after condensation.

Preferably, the cooling line is in communication with the exhaust gas condenser for cooling the exhaust gas condenser.

Preferably, a first liquid discharge port is arranged on the tail gas tank and is arranged at the bottom of the tail gas tank for discharging the pollutants in the tail gas tank.

Preferably, the first drain port is provided with a first drain valve for controlling opening and closing of the first drain port.

Preferably, a second liquid outlet is formed in the buffer tank, and the second liquid outlet is formed in the bottom of the buffer tank and used for discharging the pollutants in the buffer tank.

Preferably, the second drain port is provided with a second drain valve for controlling opening and closing of the second drain port.

The utility model has the advantages that:

the utility model provides a vacuum system, this vacuum system's vacuum pump package includes first vacuum pump and second vacuum pump, first vacuum pump and second vacuum pump series connection set up when the kneading machine is reinforced for the first time the second vacuum pump of this vacuum system starts and carries out the evacuation, make in the kneading machine can reach preset vacuum fast, after reaching certain vacuum, first vacuum pump opens and makes in the kneading machine can reach preset working vacuum, after reaching working vacuum and keeping preset time, only first vacuum pump operation, for maintaining preset vacuum, can effectively reduce this vacuum system's power consumption, be favorable to saving the electric energy; in addition, this vacuum system still includes the air intake condenser, and the air intake condenser can cool off the waste gas that gets into this vacuum system, makes the pollutant condensation in the waste gas be liquid and collected by the buffer tank, has not only avoided its direct atmospheric discharge, has avoided causing the pollution to the environment, still is favorable to follow-up processing to the pollutant, makes useful substance wherein obtain recycle, has avoided the waste of resource, and economic nature is good.

Drawings

Fig. 1 is a schematic structural diagram of a vacuum system according to an embodiment of the present invention.

In the figure:

1. an air inlet; 11. a first air inlet; 12. a second air inlet; 13. a third air inlet; 2. an intake air condenser; 21. a first intake condenser; 22. a second intake condenser; 23. a third gas inlet condenser; 3. a buffer tank; 31. a second liquid discharge port; 32. a second drain valve; 33. a first buffer tank; 34. a second buffer tank; 35. a third buffer tank; 4. a vacuum pump set; 41. a first vacuum pump; 42. a second vacuum pump; 43. an on-off valve; 44. a first pump group; 45. a second pump group; 5. an exhaust port; 6. a cooling pipeline; 7. a collector; 8. a tail gas treatment device; 81. an exhaust condenser; 82. an exhaust tank; 821. a first drain port; 822. a first drain valve.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The utility model provides a vacuum system for carry out the evacuation to the sealed kneader of gluing of production, as shown in figure 1, the utility model discloses an air inlet 1, air intake condenser 2, buffer tank 3, vacuum pump package 4 and gas vent 5, air inlet 1 communicates in the kneader, a waste gas for letting in the kneader and produce in process of production, air intake condenser 2 communicates with air inlet 1, a waste gas for getting into from air inlet 1 cools off, make the pollutant condensation in the waste gas, buffer tank 3 communicates in air intake condenser 2's low reaches, can collect the pollutant after the condensation, vacuum pump package 4 communicates between buffer tank 3 and gas vent 5, a waste gas suction in the kneader is constantly used for making and is certain vacuum is formed in the kneader, discharge from gas vent 5. The air intake condenser 2 condenses pollutants in the waste gas into liquid and is collected by the buffer tank 3, so that the pollutants can be prevented from being directly discharged into the atmosphere, the environment is prevented from being polluted, the follow-up treatment of the pollutants is facilitated, useful substances in the pollutants are recycled, the waste of resources is avoided, and the economical efficiency is good.

In this embodiment, the number of the air inlets 1 is three, and the three air inlets are respectively set as a first air inlet 11, a second air inlet 12 and a third air inlet 13, the first air inlet 11 is communicated with a 3000L kneader, the second air inlet 12 is communicated with a 3000L kneader, the third air inlet 13 is communicated with a 2000L kneader, and the air inlets are used for introducing waste gas generated in the kneader, so that the vacuum system can be simultaneously applied to a plurality of kneaders, which is beneficial to improving the applicability of the vacuum system.

Correspondingly, the intake condensers 2 of the vacuum system are also provided with three intake condensers, namely a first intake condenser 21, a second intake condenser 22 and a third intake condenser 23, wherein an inlet of the first intake condenser 21 is communicated with the first air inlet 11, an inlet of the second intake condenser 22 is communicated with the second air inlet 12, and an inlet of the third intake condenser 23 is communicated with the third air inlet 13, so that the exhaust gas introduced from each kneader can respectively enter the intake condensers 2 for cooling, and the cooling capacity of the vacuum system on the exhaust gas is favorably improved. Preferably, the air intake condenser 2 is arranged as a tube type heat exchanger, has compact structure, high heat exchange speed, high efficiency and energy conservation, and can rapidly cool the introduced waste gas. More preferably, the tube bundle in the intake condenser 2 is made of copper tube, which can further increase the cooling speed of the intake condenser 2, thereby increasing the waste gas treatment efficiency of the vacuum system. In this embodiment, still be provided with the globoid steel wire in the tube bank in the air intake condenser 2, the globoid steel wire is filled in the tube bank and on the inner wall of butt in the tube bank, can enough guarantee the circulation of waste gas in the tube bank, can increase again with the heat exchange area of waste gas to improve the cooling efficiency of air intake condenser 2 to waste gas.

Preferably, the three buffer tanks 3 of the vacuum system are respectively a first buffer tank 33, a second buffer tank 34 and a third buffer tank 35, an inlet of the first buffer tank 33 is communicated with an outlet of the first air intake condenser 21, an inlet of the second buffer tank 34 is communicated with an outlet of the second air intake condenser 22, and an inlet of the third buffer tank 35 is communicated with an outlet of the third air intake condenser 23, so that the buffer tank 3 can collect liquid pollutants condensed due to cooling of the air intake condenser 2, thereby not only reducing the content of pollutants in the exhaust gas, but also being beneficial to subsequent recycling of the pollutants. In this embodiment, the buffer tank 3 is provided with a second liquid outlet 31, and the second liquid outlets 31 are disposed at the bottom of the buffer tank 3 for discharging the liquid pollutants collected in the buffer tank 3. Preferably, the second liquid discharge port 31 is provided with a second liquid discharge valve 32 for controlling the opening and closing of the second liquid discharge port 31, so as to facilitate centralized storage and collection of liquid pollutants and centralized treatment.

In this embodiment, the vacuum pump groups 4 of the vacuum system are provided with two groups, namely a first pump group 44 and a second pump group 45, and the input ends of the first pump group 44 and the second pump group 45 are both communicated with the three buffer tanks 3, so that the vacuum system can pump vacuum under the action of the first pump group 44 and the second pump group 45, and can quickly reach a preset vacuum degree in the kneader, thereby improving the working efficiency. Preferably, the vacuum pump group 4 comprises a first vacuum pump 41, a second vacuum pump 42 and a switch valve 43, the first vacuum pump 41 is arranged to be connected in series with the second vacuum pump 42, and the switch valve 43 is communicated between the first vacuum pump 41 and the second vacuum pump 42 for controlling the communication or closing of the vacuum pump group 4. The first vacuum pump 41 is communicated with the buffer tank 3, and the second vacuum pump 42 is communicated with the exhaust port 5, so that the vacuum pump group 4 can pump the exhaust gas in the buffer tank 3 to the exhaust port 5 for exhaust. More preferably, the first vacuum pump 41 is configured as a roots vacuum pump, which is fast to start, consumes less power, is inexpensive to operate and maintain, is efficient, and is insensitive to a small amount of water vapor and dust contained in the gas to be pumped. In this embodiment, second vacuum pump 42 is configured as a reciprocating vacuum pump that is water vapor proof, robust, and easy to operate.

Preferably, after the kneader is charged for the first time, the second vacuum pumps 42 in the first pump group 44 and the second pump group 45 of the vacuum system are both started to vacuumize, so that the kneader can reach the preset vacuum degree quickly, after the preset vacuum degree is reached and the preset time is kept, the first vacuum pumps 41 in the first pump group 44 and the second pump group 45 are both started so that the kneader can reach the preset working vacuum degree, after the preset working vacuum degree is reached and the preset time is kept, the switch valves 43 in the first pump group 44 are closed, the switch valves 43 in the second pump group 45 are kept open, after the first vacuum pumps 41 and the second vacuum pumps 42 are both kept running for the preset time, the second vacuum pumps 42 are closed to only start the first vacuum pumps 41 for maintaining the preset working vacuum degree, so that only the first vacuum pumps 41 in the second pump group 45 in the vacuum system are started, and the energy consumption of the vacuum system can be effectively reduced, the electric energy is saved; when feeding is performed midway in the production process, the vacuum degree in the vacuum system is lower than the preset value due to feeding, and the second vacuum pump 42 in the second pump group 45 is started again, so that the vacuum system can be quickly restored to the preset vacuum degree, the working efficiency of the vacuum system is high, and the energy consumption is low.

Preferably, the vacuum system further comprises a collector 7, the collector 7 being in communication downstream of the vacuum pump group 4 for collecting contaminants condensed as a result of being transported through long distance pipelines. Specifically, the trap 7 is communicated downstream of the second vacuum pump 42 so that the trap 7 can collect the contaminants condensed after passing through the second vacuum pump 42.

In this embodiment, the vacuum system further comprises an exhaust gas treatment device 8, and the exhaust gas treatment device 8 is connected between the second vacuum pump 42 and the exhaust port 5 and is used for treating the exhaust gas pumped out from the second vacuum pump 42. The exhaust gas treatment device 8 includes an exhaust gas condenser 81 and an exhaust gas tank 82, the exhaust gas condenser 81 communicates between the exhaust port 5 and the exhaust gas tank 82, the exhaust gas tank 82 communicates with the second vacuum pump 42, and the exhaust gas tank 82 can collect the pollutants after condensation by using the gas extracted from the second vacuum pump 42. Preferably, the top of the tail gas tank 82 is communicated with the bottom of the exhaust gas condenser 81, so that the liquid pollutants condensed in the exhaust gas condenser 81 can flow into the tail gas tank 82 under the action of gravity, and the pollutants can be collected conveniently. More preferably, a first exhaust port 821 is provided on the tail gas tank 82, and the first exhaust port 821 is provided at the bottom of the tail gas tank 82 for exhausting the pollutants collected in the tail gas tank 82. In this embodiment, the first liquid discharging valve 822 is disposed on the first liquid discharging port 821 to control the opening and closing of the first liquid discharging port 821, so as to facilitate centralized storage and collection of liquid pollutants and centralized processing.

Preferably, the vacuum system further comprises a cooling pipeline 6, cooling water or chilled water is introduced into the cooling pipeline 6, the cooling pipeline 6 is communicated with the air intake condenser 2, the second vacuum pump 42 and the exhaust condenser 81, and the cooling pipeline 6 can cool the air intake condenser 2, the second vacuum pump 42 and the exhaust condenser 81, so that the air intake condenser 2, the second vacuum pump 42 and the exhaust condenser 81 can sufficiently cool the waste gas entering the air intake condenser, the condensation efficiency of pollutants is improved, the separation of the pollutants such as methanol, water and isopropanol contained in the waste gas is facilitated, the reduction of the content of the pollutants in the discharged waste gas is facilitated, and the pollution to the environment is reduced.

It can be understood, the utility model provides a vacuum system is not limited to sealed glue technical field, can also be applied to other fields that need produce certain vacuum, and this vacuum system not only energy consumption is lower, saves the electric energy, but also can carry out the condensation to the pollutant in the waste gas and collect, not only is favorable to follow-up processing to the pollutant, makes useful material wherein obtain recycle, can also effectively reduce the pollutant in the emission waste gas, is favorable to environmental protection.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vacuum system, comprising:

the gas inlet (1), the gas inlet (1) is communicated with the kneader and is used for introducing waste gas generated in the kneader;

the air inlet condenser (2), the air inlet condenser (2) is communicated with the air inlet (1) and is used for cooling the waste gas entering from the air inlet (1);

the buffer tank (3) is communicated with the downstream of the air inlet condenser (2) and is used for collecting condensed pollutants;

a vacuum pump group (4), the vacuum pump group (4) comprising a first vacuum pump (41) and a second vacuum pump (42), the second vacuum pump (42) being arranged in series with the first vacuum pump (41), the first vacuum pump (41) being in communication with the buffer tank (3);

an exhaust port (5), the exhaust port (5) being communicated with the second vacuum pump (42) for exhausting the extracted exhaust gas.

2. The vacuum system according to claim 1, further comprising a cooling pipeline (6), wherein cooling water or chilled water is introduced into the cooling pipeline (6), and the cooling pipeline (6) is communicated with the intake condenser (2) and the second vacuum pump (42) for cooling the intake condenser (2) and the second vacuum pump (42).

3. The vacuum system according to claim 2, further comprising a collector (7), said collector (7) being in communication downstream of said second vacuum pump (42) for collecting condensed contaminants.

4. The vacuum system according to claim 2, further comprising an exhaust gas treatment device (8), wherein the exhaust gas treatment device (8) is connected between the second vacuum pump (42) and the exhaust port (5) for treating the exhaust gas.

5. Vacuum system according to claim 4, characterized in that the exhaust gas treatment device (8) comprises an exhaust gas condenser (81) and an exhaust gas tank (82), the exhaust gas condenser (81) being in communication between the exhaust port (5) and the top of the exhaust gas tank (82), the exhaust gas tank (82) being in communication with the second vacuum pump (42), the exhaust gas tank (82) being capable of collecting condensed contaminants.

6. Vacuum system according to claim 5, characterized in that the cooling line (6) communicates with the exhaust condenser (81) for cooling the exhaust condenser (81).

7. The vacuum system according to claim 5, wherein a first drain port (821) is provided on the tail gas tank (82), and the first drain port (821) is provided at the bottom of the tail gas tank (82) for draining the contaminants in the tail gas tank (82).

8. The vacuum system as claimed in claim 7, wherein the first draining port (821) is provided with a first draining valve (822) for controlling the opening and closing of the first draining port (821).

9. Vacuum system according to claim 1, characterized in that a second drain port (31) is provided on the buffer tank (3), said second drain port (31) being provided at the bottom of the buffer tank (3) for draining the contaminants from the buffer tank (3).

10. The vacuum system according to claim 9, wherein a second drain valve (32) is provided on the second drain port (31) for controlling the opening and closing of the second drain port (31).