CN214681619U - Reation kettle feeding device is used in production of azo-bis-isobutyronitrile - Google Patents

Abstract

The utility model belongs to the technical field of chemical production equipment, in particular to a reaction kettle feeding device for azodiisobutyronitrile production, which comprises an electropneumatic controller, a liquid level sensor, a storage tank, a solenoid valve, a metering pump and a liquid flowmeter; the top end of the storage tank is provided with a liquid inlet pipe, the liquid inlet pipe is provided with an electromagnetic valve, the bottom end of the storage tank is provided with a liquid outlet pipe, the liquid outlet pipe is communicated with a metering pump, the metering pump is communicated with a liquid guide pipe, the liquid guide pipe is provided with a liquid flow meter, the liquid outlet pipe is provided with an electromagnetic valve, and the liquid level sensor is arranged in the storage tank; the liquid level sensor, the electromagnetic valve, the metering pump and the liquid flowmeter are respectively and electrically connected with the electric controller through leads. This feeding device passes through level sensor, measuring pump and flowmeter simultaneous measurement to the volume of the chemical industry liquid of reation kettle injection, realizes the accurate ratio of blending liquid, improves product quality, reasonable in design, and high-quality high efficiency easily promotes and uses on a large scale.

Description

Reation kettle feeding device is used in production of azo-bis-isobutyronitrile

The technical field is as follows:

the utility model belongs to the technical field of chemical production equipment, concretely relates to reation kettle feeding device is used in azodiisobutyronitrile production.

Background art:

in the production process of the azodiisobutyronitrile, a reaction kettle is needed to carry out mixing reaction on two or more than two chemical liquids. Therefore, the amount of the chemical liquid injected into the reaction kettle needs to be accurately controlled, so that the quality of the mixing reaction is ensured. At present, in the production of azobisisobutyronitrile, the amount of each chemical liquid injected into a reaction kettle is measured by measuring the liquid level of a buffer tank. The metering mode can not meet the blending reaction requirement with higher requirement on blending ratio. Therefore, it is very necessary to design a reaction kettle feeding device for producing azodiisobutyronitrile, which can accurately measure chemical liquid.

The utility model has the following contents:

the utility model aims at providing a can accurate measurement chemical industry liquid's reation kettle feeding device is used in azodiisobutyronitrile production, this feeding device passes through measuring pump and flowmeter simultaneous measurement to the chemical industry liquid's of reation kettle injection volume, realizes the accurate ratio of blending liquid, improves product quality, reasonable in design, high-quality high efficiency, easily on a large scale popularization and use.

The utility model adopts the technical proposal that: a feeding device of a reaction kettle for azodiisobutyronitrile production comprises an electric controller, a liquid level sensor, a storage tank, an electromagnetic valve, a metering pump and a liquid flow meter; the top end of the storage tank is provided with a liquid inlet pipe, the liquid inlet pipe is provided with an electromagnetic valve, the bottom end of the storage tank is provided with a liquid outlet pipe, the liquid outlet pipe is communicated with a metering pump, the metering pump is communicated with a liquid guide pipe, the liquid guide pipe is provided with a liquid flow meter, the liquid outlet pipe is provided with an electromagnetic valve, and the liquid level sensor is arranged in the storage tank; the liquid level sensor, the electromagnetic valve, the metering pump and the liquid flowmeter are respectively and electrically connected with an electric controller through leads, and the electric controller is electrically connected with a control system of a control room.

Further, the quantity of storage jar is 3 at least, all with the manifold intercommunication on the drain pipe of every storage jar bottom, the manifold passes through connecting pipe and measuring pump intercommunication, all installs fluidflowmeter and solenoid valve on every drain pipe.

The utility model has the advantages that: the utility model provides an invention purpose provides a reation kettle feeding device is used in azodiisobutyronitrile production that can accurate measurement chemical industry liquid, this feeding device passes through measuring pump and flowmeter simultaneous measurement to the volume of the chemical industry liquid of reation kettle injection, realizes the accurate ratio of blending liquid, improves product quality, reasonable in design, high-quality high efficiency, easily on a large scale popularization and use.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic structural view of the second embodiment;

fig. 3 is a distribution diagram of the storage tank in the second embodiment.

The specific implementation mode is as follows:

example one

Referring to fig. 1, a feeding device of a reaction kettle for producing azobisisobutyronitrile, the feeding device comprises an electric controller 1, a liquid level sensor 2, a storage tank 3, an electromagnetic valve 8, a metering pump 7 and a liquid flow meter 6; a liquid inlet pipe 4 is arranged at the top end of the storage tank 3, an electromagnetic valve 8 is mounted on the liquid inlet pipe 4, a liquid outlet pipe 9 is arranged at the bottom end of the liquid inlet pipe 4, the liquid outlet pipe 9 is communicated with a metering pump 7, the metering pump 7 is communicated with a liquid guide pipe 5, a liquid flow meter 6 is mounted on the liquid guide pipe 5, the electromagnetic valve 8 is mounted on the liquid outlet pipe 9, and the liquid level sensor 2 is arranged in the storage tank 3; the liquid level sensor 2, the electromagnetic valve 8, the metering pump 7 and the liquid flowmeter 6 are respectively electrically connected with the electric controller 1 through leads, and the electric controller 1 is electrically connected with a control system of a control room.

Chemical liquid in the liquid storage tank enters the storage tank through the liquid inlet pipe by the lifting pump, after the storage tank is full of the chemical liquid, the liquid level sensor transmits liquid level data to the electric appliance controller, the electromagnetic valve and the lifting pump on the liquid inlet pipe are closed by the electric controller, and liquid supplement is stopped. The liquid guide pipe is communicated with a liquid inlet of the reaction kettle (the liquid inlet is one or more), chemical liquid is injected into the reaction kettle through the metering pump, the injected chemical liquid is respectively metered through the metering pump and the liquid flow meter, and the metered data is transmitted to a control system of the electric appliance controller and the control room and then is displayed through a display screen of the control room. And if the difference value of the data measured by the metering pump and the liquid flowmeter is large, stopping injecting the chemical liquid into the reaction kettle, and retesting whether the metering components for overhauling the metering pump and the liquid flowmeter are damaged. When the liquid level in the storage tank is reduced to a set value, the electromagnetic valve and the lifting pump are opened, and liquid is continuously replenished into the tank. If multiple chemical liquid is injected into the reaction kettle to carry out mixing reaction, a plurality of sets of feeding devices are required to be arranged to meet the production requirement.

Example two

Referring to fig. 2 and 3, on the basis of the technical solution of the embodiment, the number of the storage tanks 3 is at least 3, the liquid outlet pipes 9 at the bottom ends of the storage tanks 3 are all communicated with a manifold 10, the manifold 10 is communicated with the metering pump 7 through a connecting pipe, and each liquid outlet pipe 9 is provided with a liquid flow meter 6 and an electromagnetic valve 8. This embodiment is applicable to and pours into different chemical industry liquid into to reation kettle in proper order, realizes pouring into in proper order of multiple chemical industry liquid through a measuring pump, practices thrift the cost. Use to pour into 3 kinds of chemical industry liquid into in proper order in to reation kettle as the example, when first storage jar pours into chemical industry liquid into to reation kettle, the solenoid valve of other two storage jar drain pipes is closed, and liquid flowmeter and the measuring pump through this storage jar drain pipe measure this chemical industry liquid. After the completion of injection of first kind of chemical industry liquid, close the solenoid valve of first storage jar drain pipe, open the solenoid valve of second storage jar drain pipe, to pouring into second kind of chemical industry liquid into reation kettle, the liquid flowmeter and the measuring pump measurement of this storage jar drain pipe (the volume of measuring pump measurement at this moment is the sum of two kinds of chemical industry liquid before, can know the volume of second kind of chemical industry liquid through the calculation) this chemical industry liquid. In the same way, the amount of the third chemical liquid can be measured, and the liquid flow meter on the liquid guide pipe can measure the total amount of the third chemical liquid.

The metering pump is preferably a liquid metering pump manufactured by Jiangsu Boyu Pump, Suzhou Huayu environmental protection technology, Yongzhou Depamm Pump, Kunshimoto Weilong environmental protection electromechanical, and Shanghai Wuweis Pump and valve. The liquid flow meters are preferably liquid flow meters produced by Shenzhen Anyitaco technology, Inc., Dacheng county Xin Hengtai instruments and accessories, Quanzhou Nixin Meter, Changzhou Chengfeng Meter, Jinhu Honghua Meter, and Jiangsu Hongyu Automation Meter, Inc. The liquid level sensor is preferably a sensor produced by Guangzhou compass sensor GmbH, Shaanxi dikay measurement and control technology GmbH, Zhejiang east science and technology GmbH, Anhui Joint control Automation science and technology GmbH, Shandong Zerong mechanical equipment GmbH, and Jiangsu Meiant Automation instruments GmbH. The solenoid valves are preferably solenoid valves manufactured by wenzhou hong ling pump valve limited, shanghai rong valve limited, guangzhou chenhai electromechanical limited, chongqing mingming solenoid valve limited, ningbo xinglin gas appliances limited, and shanghai guan valve limited. The electric appliance controller is preferably a controller produced by Yangzhou people's electric technology Co., Ltd, Tongyi electric technology Co., Ltd, Zhejiang arbor electric technology Co., Ltd, Tongling ze Mei electric technology Co., Ltd, Zhengzhou Wantai electric Co., Ltd, Anhui Beichen electric technology Co., Ltd, Zhejiang Shunjing electrified gas Co., Ltd, Wenzhou Kanjin electric Co., Ltd, Wanlang electric Co., Ltd, Henan province, and Huagui electric company Ltd.

Claims (2)

1. The utility model provides an azo-bis-isobutyronitrile production is with reation kettle feeding device which characterized in that: the feeding device comprises an electric controller (1), a liquid level sensor (2), a storage tank (3), an electromagnetic valve (8), a metering pump (7) and a liquid flowmeter (6); the liquid level sensor is characterized in that a liquid inlet pipe (4) is arranged at the top end of the storage tank (3), an electromagnetic valve (8) is mounted on the liquid inlet pipe (4), a liquid outlet pipe (9) is arranged at the bottom end of the liquid inlet pipe (4), the liquid outlet pipe (9) is communicated with a metering pump (7), the metering pump (7) is communicated with a liquid guide pipe (5), a liquid flow meter (6) is mounted on the liquid guide pipe (5), the electromagnetic valve (8) is mounted on the liquid outlet pipe (9), and the liquid level sensor (2) is arranged in the storage tank (3); the liquid level sensor (2), the electromagnetic valve (8), the metering pump (7) and the liquid flowmeter (6) are respectively electrically connected with the electric controller (1) through leads, and the electric controller (1) is electrically connected with a control system of a control room.

2. The reaction kettle feeding device for producing azobisisobutyronitrile according to claim 1, wherein: the quantity of storage jar (3) is 3 at least, all communicates with manifold (10) on drain pipe (9) of every storage jar (3) bottom, and manifold (10) are through connecting pipe and measuring pump (7) intercommunication, all install fluidflowmeter (6) and solenoid valve (8) on every drain pipe (9).

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