CN215139668U - Hazardous articles solvent trace feeding device - Google Patents

Hazardous articles solvent trace feeding device Download PDF

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Publication number
CN215139668U
CN215139668U CN202023308046.XU CN202023308046U CN215139668U CN 215139668 U CN215139668 U CN 215139668U CN 202023308046 U CN202023308046 U CN 202023308046U CN 215139668 U CN215139668 U CN 215139668U
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China
Prior art keywords
storage cylinder
liquid outlet
liquid storage
pipeline
connecting plate
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CN202023308046.XU
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Chinese (zh)
Inventor
常圣泉
沈国宏
张金尧
李迎春
孙志营
谷坤轮
李丹
魏洪升
车钊肄
施顺才
周亚娟
王硕
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Liaoning Qingyang Special Chemical Co ltd
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Liaoning Qingyang Special Chemical Co ltd
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Abstract

The utility model discloses a hazardous article solvent micro-feeding device, which comprises a sealed box body, a liquid storage cylinder, a piston head, a piston rod, a transmission screw, a rotating motor and a connecting plate; a suction pipeline connected with the solvent storage tank and a liquid outlet pipeline used for feeding are led out from the upper end plate of the liquid storage cylinder; the suction pipeline is provided with a suction valve, the liquid outlet pipeline is provided with a liquid outlet valve, and the initial section of the liquid outlet pipeline is arranged below the mounting position of the suction valve on the suction pipeline; the rotating motor drives the connecting plate to vertically move through the transmission screw rod, so that the piston rod and the piston head are driven to vertically move in the liquid storage cylinder. The utility model discloses a feeding device can realize that the solvent of dangerous trade lasts the requirement of stabilizing automatic micro dropwise add.

Description

Hazardous articles solvent trace feeding device
Technical Field
The utility model relates to a hazardous articles solvent trace feeding device belongs to the reinforced field of chemical industry.
Background
It is now common in industry to use peristaltic pumps to effect automatic micro-dropping of the solvent. The principle of the peristaltic pump is that when the rotor rotates, the continuous peristaltic movement of the hose formed by the clamping and squeezing of the roller and the pump shell continuously conveys liquid from the low-pressure inlet to the high-pressure outlet of the pump. The hose is usually made of elastic materials such as rubber, tartary materials or multilayer composite materials, and the hose of the peristaltic pump can deform when the hose is used for a long time, so that the hose cannot continuously keep stable dropping speed, the requirement of the chemical industry or dangerous industries such as explosive and the like on continuously and stably dropping a solvent in a micro amount cannot be met, the man-machine isolation automatic operation cannot be completely realized, the development process of the chemical industry or dangerous industries such as explosive and the like is limited,
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the traditional peristaltic pump can not satisfy continuous stable automatic micro-dripping solvent, and providing a hazardous articles solvent micro-feeding device.
The utility model aims at realizing through the following technical scheme:
the utility model discloses a hazardous articles solvent micro-feeding device, including sealed box, the cylinder liquid storage jar of vertical fixing in the sealed box, the adherence install in the piston head of liquid storage jar inner chamber, fix perpendicularly in the piston head lower extreme and stretch out the piston rod of liquid storage jar inner chamber, the vertical connection drive screw in the sealed box, be used for driving drive screw pivoted rotation motor, and be used for connecting the drive screw with the connecting plate of piston rod;
the upper end of the liquid storage cylinder is sealed through an upper end plate, and a suction pipeline connected with a solvent storage tank and a liquid outlet pipeline for feeding are led out of the upper end plate of the liquid storage cylinder; the suction pipeline is provided with a suction valve, the liquid outlet pipeline is provided with a liquid outlet valve, and the initial section of the liquid outlet pipeline is arranged below the mounting position of the suction valve on the suction pipeline;
a nut is arranged at one end of the connecting plate, and the connecting plate is in threaded connection with the transmission screw through the nut; the other end of the connecting plate is fixed with the lower end of the piston rod; the rotating motor drives the connecting plate to vertically move through the transmission screw rod, so that the piston rod and the piston head are driven to vertically move in the liquid storage cylinder.
And the outer wall of the sealed box body is provided with an explosion-proof material.
And the sealed box body is connected with a nitrogen inlet pipeline which provides a nitrogen environment for the inner cavity of the box body.
The suction valve and the liquid outlet valve are both air control valves.
The side wall grooving of piston head connects the sealing washer, and the sealing washer adopts the two seal structure of the general stopper ring of polytetrafluoroethylene and polytetrafluoroethylene parcel O type circle, prevents the liquid seepage.
Working process
Before feeding, open simultaneously suction valve on the suction line with go out the liquid valve on the drain pipe, it passes through to rotate the motor drive the vertical rebound of connecting plate makes the piston rod with the piston head is in vertical removal is to the top stroke in the liquid storage cylinder. And then closing a liquid outlet valve on the liquid outlet pipeline, driving the connecting plate to vertically move downwards by the rotating motor through the transmission screw rod, enabling the piston rod and the piston head to vertically move to the lowest end stroke in the liquid storage cylinder, and enabling the liquid storage cylinder to generate negative pressure in the liquid storage cylinder in the motion process of the piston rod and the piston head so as to suck the solvent in the solvent storage cylinder into the liquid storage cylinder. After the liquid storage tank is filled with the solvent, the suction valve on the suction pipeline is closed, the liquid outlet valve on the liquid outlet pipeline is opened, the rotating motor drives the connecting plate to vertically move upwards through the transmission screw rod, so that the piston rod drives the piston head to push the solvent in the liquid storage tank to be discharged outwards through the liquid outlet pipeline, and the rotating speed of the transmission screw rod is controlled, so that the speed of the solvent discharged outwards from the liquid outlet pipeline is controlled.
Advantageous effects
The utility model discloses a feeding device, simple structure, convenient to use feeds in raw material through screw drive piston and replaces the wriggling feeding mode that original gyro wheel and pump case pressed from both sides crowded hose, has improved feeding device's life, can realize the solvent of dangerous trade and continuously stabilize the requirement of automatic micro dropwise add, can realize continuous stable work, improves production efficiency, improves the quality uniformity.
Drawings
Fig. 1 is a schematic structural view of the feeding device of the present invention;
in the figure, 1-a sealed box; 2-liquid storage cylinder; 3-a piston head; 4-a piston rod; 5-a drive screw; 6-rotating the motor; 7-a connecting plate; 8-a suction line; 9-a liquid outlet pipeline; 10-a suction valve; 11-liquid outlet valve.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1, the present invention relates to a hazardous material solvent micro-feeding device, which comprises a sealed box body 1, a cylindrical liquid storage cylinder 2 vertically fixed in the sealed box body 1, a piston head 3 attached to the inner cavity of the liquid storage cylinder 2, a piston rod 4 vertically fixed at the lower end of the piston head 3 and extending out of the inner cavity of the liquid storage cylinder 2, a transmission screw 5 vertically connected in the sealed box body 1, a rotating motor 6 for driving the transmission screw 5 to rotate, and a connecting plate 7 for connecting the transmission screw 5 and the piston rod 4;
the upper end of the liquid storage cylinder 2 is sealed through an upper end plate, and a suction pipeline 8 connected with a solvent storage tank and a liquid outlet pipeline 9 for feeding are led out of the sealed box body 1 through the upper end plate of the liquid storage cylinder 2; a suction valve 10 is arranged on the suction pipeline 8, a liquid outlet valve 11 is arranged on the liquid outlet pipeline 9, and the initial section of the liquid outlet pipeline 9 is arranged below the mounting position of the suction valve 10 on the suction pipeline 8;
a nut is arranged at one end of the connecting plate 7, and the connecting plate 7 is connected to the transmission screw 5 through a nut thread; the other end of the connecting plate 7 is fixed with the lower end of the piston rod 4; the rotating motor 6 drives the connecting plate 7 to vertically move through the transmission screw 5, so as to drive the piston rod 4 and the piston head 3 to vertically move in the liquid storage cylinder 2.
And the outer wall of the sealed box body 1 is provided with an explosion-proof material.
The sealed box body 1 is connected with a nitrogen inlet pipeline, and a nitrogen environment is provided for the inner cavity of the box body 1.
The suction valve 10 and the liquid outlet valve 11 are both air control valves.
The sealing ring is connected to the lateral wall fluting of piston head 3, and the sealing ring adopts the two seal structure of the general stopper ring of polytetrafluoroethylene and polytetrafluoroethylene parcel O type circle, prevents the liquid seepage.
Working process
Before feeding, simultaneously open suction valve 10 on the suction line 8 with go out liquid valve 11 on the liquid pipeline 9, rotation motor 6 passes through drive screw 5 drives connecting plate 7 vertically upwards moves, makes piston rod 4 with piston head 3 is in vertical removal is to the top stroke in the liquid storage cylinder 2. Then, a liquid outlet valve 11 on the liquid outlet pipeline 9 is closed, the rotating motor 6 drives the connecting plate 7 to vertically move downwards through the transmission screw rod 5, so that the piston rod 4 and the piston head 3 vertically move to the lowest end stroke in the liquid storage cylinder 2, and in the motion process of the piston rod 4 and the piston head 3, negative pressure is generated in the liquid storage cylinder 2, and the solvent in the solvent storage tank is sucked into the liquid storage cylinder 2. After the liquid storage cylinder 2 is filled with the solvent, the suction valve 10 on the suction pipeline 8 is closed, the liquid outlet valve 11 on the liquid outlet pipeline 9 is opened, the rotating motor 6 drives the connecting plate 7 to vertically move upwards through the transmission screw rod 5, so that the piston rod 4 drives the piston head 3 to push the solvent in the liquid storage cylinder 2 to be discharged outwards through the liquid outlet pipeline 9, and the speed of the solvent discharged outwards from the liquid outlet pipeline 9 is controlled by controlling the rotating speed of the transmission screw rod 5.

Claims (6)

1. The utility model provides a hazardous articles solvent trace feeding device which characterized by: the device comprises a sealed box body, a cylindrical liquid storage cylinder vertically fixed in the sealed box body, a piston head attached to the inner cavity of the liquid storage cylinder, a piston rod vertically fixed at the lower end of the piston head and extending out of the inner cavity of the liquid storage cylinder, a transmission screw rod vertically connected in the sealed box body, a rotating motor used for driving the transmission screw rod to rotate, and a connecting plate used for connecting the transmission screw rod and the piston rod;
the upper end of the liquid storage cylinder is sealed through an upper end plate, and a suction pipeline connected with a solvent storage tank and a liquid outlet pipeline for feeding are led out of the upper end plate of the liquid storage cylinder; the suction pipeline is provided with a suction valve, the liquid outlet pipeline is provided with a liquid outlet valve, and the initial section of the liquid outlet pipeline is arranged below the mounting position of the suction valve on the suction pipeline;
a nut is arranged at one end of the connecting plate, and the connecting plate is in threaded connection with the transmission screw through the nut; the other end of the connecting plate is fixed with the lower end of the piston rod; the rotating motor drives the connecting plate to vertically move through the transmission screw rod, so that the piston rod and the piston head are driven to vertically move in the liquid storage cylinder.
2. The charging device according to claim 1, characterized in that: and the outer wall of the sealed box body is provided with an explosion-proof material.
3. The charging device according to claim 1, characterized in that: and the sealed box body is connected with a nitrogen inlet pipeline.
4. The charging device according to claim 1, characterized in that: the suction valve and the liquid outlet valve are both air control valves.
5. The charging device according to claim 1, characterized in that: the side wall of the piston head is grooved and connected with a sealing ring.
6. The charging device according to claim 5, characterized in that: the sealing ring adopts the double seal structure of polytetrafluoroethylene universal stopper ring and polytetrafluoroethylene coated O-shaped ring.
CN202023308046.XU 2020-12-31 2020-12-31 Hazardous articles solvent trace feeding device Active CN215139668U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023308046.XU CN215139668U (en) 2020-12-31 2020-12-31 Hazardous articles solvent trace feeding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023308046.XU CN215139668U (en) 2020-12-31 2020-12-31 Hazardous articles solvent trace feeding device

Publications (1)

Publication Number Publication Date
CN215139668U true CN215139668U (en) 2021-12-14

Family

ID=79399751

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023308046.XU Active CN215139668U (en) 2020-12-31 2020-12-31 Hazardous articles solvent trace feeding device

Country Status (1)

Country Link
CN (1) CN215139668U (en)

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