CN105756924A - Apparatus for conveying thick liquid containing solid particles and application of apparatus - Google Patents
Apparatus for conveying thick liquid containing solid particles and application of apparatus Download PDFInfo
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- CN105756924A CN105756924A CN201410784229.9A CN201410784229A CN105756924A CN 105756924 A CN105756924 A CN 105756924A CN 201410784229 A CN201410784229 A CN 201410784229A CN 105756924 A CN105756924 A CN 105756924A
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Abstract
The invention discloses an apparatus for conveying a thick liquid which contains solid particles. The apparatus comprises storage tanks, two-position three-way valves, a high-pressure pump, connection pipes, and an electronic balance. The high-pressure pump is an external gear pump composed of a pump body and a pump cover, both of which are made of a stainless steel material, wherein the pump body is equipped with a driven gear through insertion and is provided with a driving gear. The driven gear and the driving gear have the same tooth number and bi-arc sinusoidal tooth shapes. The problem of stabilization of material feeding at low flow is solved through the improved high-pressure gear pump, and effective operation of the pump is not affected by the thick liquid and a few solid particles. The high-pressure pump is simple in structure and allows a higher pre-set pressure to be reached. Continuous conveying of materials is realized through alternative use of the storage tanks, and the pressure-resisting storage tanks are added to improve pumping performance of the high-pressure pump.
Description
Technical field
The present invention relates to high-pressure pump technical field, be specifically related to a kind of high-pressure gear pump installation carrying thick suspension.
Technical background
Reaction under high pressure and related device thereof is all referred in every field such as the laboratory of R&D institution, Corporation R & D department, coal, fine chemistry industry, environmental protection.When the liquid phase feed reaction carrying out routine, existing high-pressure pump can meet requirement substantially, but supercharging stock device conventional when processing the viscous solution containing solid granulates such as high-viscosity material (such as coal tar, mink cell focus), high-melting-point material (such as Fischer-Tropsch wax) is difficult to realization.Existing high-pressure pump mainly has gear pump, plunger displacement pump, membrane pump, centrifugal pump etc..Plunger displacement pump is because of precisely, seriality is good, have higher discharge pressure and be widely used, but when transfer of highly viscous material, owing to viscosity number is relatively big, some raw material is that room temperature solid feed is often accompanied by solid granulates after the heating, plunger rod and sealing ring thereof can be damaged in this case, in highly viscous material adhesion check valve, gem ball causes failure of check valve when pumping into high-pressure system process.The operation principle of membrane pump is similar with plunger displacement pump, belongs to reciprocating pump, faces same technical barrier.The impact of performance is very big by centrifugal pump transfer of highly viscous liquid, and usual centrifugal pump transfer of highly viscous liquid need to select slow-revving centrifugal pump, and often needs are multistage can be only achieved setting pressure.
Gear pump is to use high-pressure pump extremely widely, and it has compact conformation, volume is little, use the features such as reliable, easy to maintenance.Its operation principle determines it and is more suitable for conveying thick liquid, and for the fluid that viscosity or density change in process, gear pump will not be subject to too many impact, and has the advantages that feed flow is little, discharge pressure is high.But there is also low-flux pulse and the problem of Technology of Mechanical Seal difficulty.
Therefore, the high pressure pumping apparatus designing a kind of thick liquid for carrying containing solid particle is very important.
Summary of the invention
Device provided by the invention is particularly to high-pressure delivery for high viscosity, high-melting-point material at premix catalyst or containing a small amount of solid particle.
For achieving the above object, the present invention is achieved through the following technical solutions:
The device of a kind of conveying thick liquid containing solid particle, including storage tank a, storage tank b, two position three-way valve (a, b, c, d), high-pressure pump, connecting line and electronic balance.Storage tank a and storage tank b is airtight hollow structure；High-pressure pump is external gear rotary pump, and gear pump is made up of the pump housing and pump cover two parts, is stainless steel material and processes, grafting driven gear on the pump housing, and is provided with driving gear.Driving gear is identical with the number of teeth of driven gear, and adopts bicircular arcs sine curve profile of tooth.High-pressure gear pump after improvement solves stable feed problems during low discharge, high-viscosity material and a small amount of solid particle does not affect effective operation of pump, and high-pressure pump structure simply can reach higher preset pressure.Being used alternatingly to achieve of pressure storage tank carries material continuously, and pressurisable pressure storage tank improves again the imbedibility of high-pressure pump simultaneously.
Device method of attachment is: storage tank a is connected with source of the gas by pipeline through valve respectively with the air inlet on storage tank b top, discharging opening bottom storage tank a and storage tank b is connected with first interface of two position three-way valve b and second interface respectively by the road, 3rd interface of two position three-way valve b is connected with first interface of two position three-way valve c, second interface of two position three-way valve c is as air vent, 3rd interface is connected with high pressure pump inlet, high pressure pump outlet is connected with first interface of two position three-way valve d, second interface of two position three-way valve d is as evacuation port, 3rd interface is as the discharging opening of the device of the conveying thick liquid containing solid particle.
Described source of the gas is the device for being filled with noble gas in storage tank a and storage tank b, for the gas compressor being connected with inert gas source or equipped with the inertial gas tank of noble gas, described noble gas is nitrogen or helium.
The material of connecting line is one or two or more kinds in politef, silicone rubber, resin, PV nylon, rustless steel.
Described storage tank, two position three-way valve, high-pressure pump, connecting line are not all furnished with or are provided with heater.
Described heater is electrical heating wire, heat tape, electric heating cover or electrical heating block；Heater is arranged in the outside wall surface of heated element.
High-pressure pump is external gear rotary pump, and gear pump is made up of the pump housing and pump cover two parts, is stainless steel material and processes, grafting driven gear on the pump housing, and is provided with driving gear.The pump housing is furnished with and adds hot jacket, it is preferable that heating-up temperature is 17 DEG C-120 DEG C.Driving gear is identical with the number of teeth of driven gear, it is preferable that range of numbers of teeth is 29-71, and diameter range is 10-35mm, and adopts bicircular arcs sine curve profile of tooth.
High-pressure pump can be connected with frequency conversion motor, and storage tank a and storage tank b place are provided with electronic balance and weigh to measure the thick liquid containing solid particle to storage tank, corrects the pump discharge of high-pressure pump to control the amount of liquid in storage tank by frequency conversion motor.
Device provided by the invention can apply to the thick liquid containing solid particle and carries.
First device is preheated, then the thick liquid (after the emulsifying materials of premix catalyst material) containing solid particle to be conveyed is loaded in storage tank, two position three-way valve b can be passed through between storage tank realize being used alternatingly (when first interface of two position three-way valve b and the 3rd orifice, being switched to storage tank a, it is switched to storage tank b), to support continuous sample introduction process when second interface of two position three-way valve b and the 3rd orifice；After reaching preheating temperature, being filled with noble gas by two position three-way valve a in storage tank, first interface of two position three-way valve c and second orifice are exhausted；Then start high-pressure pump simultaneously by first interface of two position three-way valve d and second orifice, high-pressure pump is emptied；After completing the emptying to high-pressure pump, by the first of two position three-way valve c interface and the 3rd orifice, first interface of two position three-way valve d and the 3rd orifice, carry；The pressure being filled with noble gas is 0.1MPa-1.0MPa；Described preheating temperature is 17-120 DEG C；Described thick liquid is coal tar, mink cell focus, Fischer-Tropsch wax, paraffin.Solid particle is insoluble matter contained by solid acid alkali catalytic agent or above-mentioned thick liquid, and diameter range is 0-500 nanometer, its content range 0-5%wt..
Present invention tool has the beneficial effect that
High-pressure gear pump after improvement solves stable feed problems during low discharge, high-viscosity material and a small amount of solid particle does not affect effective operation of pump, and high-pressure pump structure simply can reach higher preset pressure.
Being used alternatingly to achieve of storage tank carries material continuously, and pressurisable storage tank improves again the imbedibility of high-pressure pump simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high pressure pumping apparatus of a kind of thick liquid for carrying containing solid particle of the present invention.
Description of reference numerals is as follows:
1-storage tank a, 2-storage tank b, 3-two position three-way valve a, 4-electronic balance, 5-conduit, 6-two position three-way valve b, 7-two position three-way valve c, 8-two position three-way valve d, 9-high-pressure pump.
Detailed description of the invention
Embodiment 1
With reference to Fig. 1 connecting device, constitute the device of the conveying provided by the invention thick liquid containing solid particle: storage tank a is connected with nitrogen storage tank by pipeline through valve respectively with the air inlet on storage tank b top, discharging opening bottom storage tank a and storage tank b is connected with first interface of two position three-way valve b and second interface respectively by the road, 3rd interface of two position three-way valve b is connected with first interface of two position three-way valve c, second interface of two position three-way valve c is as air vent, 3rd interface is connected with high pressure pump inlet, high pressure pump outlet is connected with first interface of two position three-way valve d, second interface of two position three-way valve d is as evacuation port, 3rd interface is as the discharging opening of the device of the conveying thick liquid containing solid particle.Pipeline all adopts teflon hose, and storage tank place is provided with electronic balance, and high-pressure pump is connected with frequency conversion motor.Storage tank, two position three-way valve, high-pressure pump, connecting line are all provided with electric heating cover.
Embodiment 2
Use the device that embodiment 1 assembles to carry out the thick liquid containing solid particle to transmit:
First device is preheated to 60 DEG C, then loads in storage tank a after fully emulsified for the catalyst (granular size 200nm) of coal tar premix 1%wt..After coal tar suspension reaches 60 DEG C, being filled with 0.3MPa nitrogen by two position three-way valve a in storage tank, first interface of two position three-way valve c and second orifice are exhausted；Then start high-pressure pump simultaneously by first interface of two position three-way valve d and second orifice, high-pressure pump is emptied；After completing the emptying to high-pressure pump, by the first of two position three-way valve c interface and the 3rd orifice, first interface of two position three-way valve d and the 3rd orifice, carry.The driving gear of high-pressure pump (9) and the number of teeth of driven gear are 51, and diameter is 15mm.This pump completely solves the pulse problem of low discharge, and solid catalyst does not affect the operation of pump.
Embodiment 3
Use the device that embodiment 1 assembles to carry out the thick liquid containing solid particle to transmit:
First device is preheated to 90 DEG C, then Fischer-Tropsch wax is loaded in pressure storage tank a.Reaching, after 90 DEG C of fusings, to be filled with 0.3MPa nitrogen by two position three-way valve a in storage tank until Fischer-Tropsch wax, first interface of two position three-way valve c and second orifice are exhausted；Then start high-pressure pump simultaneously by first interface of two position three-way valve d and second orifice, high-pressure pump is emptied；After completing the emptying to high-pressure pump, by the first of two position three-way valve c interface and the 3rd orifice, first interface of two position three-way valve d and the 3rd orifice, carry.The driving gear of high-pressure pump and the number of teeth of driven gear are 37, and diameter is 25mm.Which solves stable feed problems during low discharge, a small amount of cotton-shaped high-melting-point alkane does not affect the operation of pump.
In the instantiation of the present invention, storage tank a and storage tank b switches valve by polyfluortetraethylene pipe with material and is connected so that material can accurately measure.When carrying out continuous feed further, premix material is added in storage tank b and preheat, then rotate two position three-way valve a and be filled with 0.3MPa nitrogen, realize continuous feed by two position three-way valve b.
It is above embodiment and is only the citing that clearly explanation is done, to show ultimate principle and the key property of the present invention, the not restriction to embodiment.The protection domain of application claims is defined by the following claims.
Claims (9)
1. the device of the thick liquid carried containing solid particle, it is characterised in that: include storage tank a (1), storage tank b (2), two position three-way valve b (6), two position three-way valve c (7), two position three-way valve d (8) and high-pressure pump (9)；
The number of teeth that high-pressure pump is external gear rotary pump, driving gear and driven gear is identical, and range of numbers of teeth is 29-71, and diameter range is 10-35mm, and gear adopts bicircular arcs sine curve profile of tooth；
Storage tank a and storage tank b is airtight hollow structure；Storage tank a is connected with source of the gas by pipeline through valve respectively with the air inlet on storage tank b top, discharging opening bottom storage tank a and storage tank b is connected with first interface of two position three-way valve b and second interface respectively by the road, 3rd interface of two position three-way valve b is connected with first interface of two position three-way valve c, second interface of two position three-way valve c is as air vent, 3rd interface is connected with high pressure pump inlet, high pressure pump outlet is connected with first interface of two position three-way valve d, second interface of two position three-way valve d is as evacuation port, 3rd interface is as the discharging opening of the device of the conveying thick liquid containing solid particle.
2. the device described in claim 1, it is characterized in that: described source of the gas is the device for being filled with noble gas in storage tank a and storage tank b, for the gas compressor being connected with inert gas source or equipped with the inertial gas tank of noble gas, described noble gas is nitrogen or helium.
3. the device described in claim 1 or 2, it is characterized in that: the air inlet on storage tank a and storage tank b top is connected with source of the gas by pipeline through two position three-way valve a respectively, first interface of two position three-way valve a is connected with source of the gas, and second interface of two position three-way valve a and the 3rd interface are connected with the air inlet of storage tank a and storage tank b top respectively.
4. the device described in claim 1, it is characterised in that: high-pressure pump is made up of the pump housing and pump cover two parts, is stainless steel material and processes, between the two airtight connection, and the pump housing is not furnished with or is furnished with heater；
Described storage tank a and storage tank b is not furnished with or is furnished with heater, storage tank a and storage tank b and is pressure storage tank, is made up of stainless steel material, pressure ranges for 0.1MPa-1.0MPa；
The material of connecting line is one or two or more kinds in politef, silicone rubber, resin, PV nylon, rustless steel；Pipeline and two position three-way valve a, two position three-way valve b, two position three-way valve a, two position three-way valve b are not all furnished with or are provided with heater.
5. the device described in claim 4, it is characterised in that: described heater is electrical heating wire, heat tape, electric heating cover or electrical heating block；Heater is arranged in the outside wall surface of heated element.
6. the device described in claim 1, it is characterized in that: high-pressure pump can be connected with frequency conversion motor, storage tank a and storage tank b place are provided with electronic balance and weigh to measure the thick liquid containing solid particle to storage tank, correct the pump discharge of high-pressure pump to control the amount of liquid in storage tank by frequency conversion motor.
7. the arbitrary described device of the claim 1-6 application in the thick liquid containing solid particle is carried.
8. the application described in claim 7, it is characterised in that:
First device is preheated, then the thick liquid containing solid particle to be conveyed is loaded in storage tank, two position three-way valve b can be passed through between storage tank realize being used alternatingly (when first interface of two position three-way valve b and the 3rd orifice, being switched to storage tank a, it is switched to storage tank b), to support continuous sample introduction process when second interface of two position three-way valve b and the 3rd orifice；After reaching preheating temperature, being filled with noble gas by two position three-way valve a in storage tank, first interface of two position three-way valve c and second orifice are exhausted；Then start high-pressure pump simultaneously by first interface of two position three-way valve d and second orifice, high-pressure pump is emptied；After completing the emptying to high-pressure pump, by the first of two position three-way valve c interface and the 3rd orifice, first interface of two position three-way valve d and the 3rd orifice, carry；The pressure being filled with noble gas is 0.1MPa-1.0MPa；Described preheating temperature is 17-120 DEG C.
9. the application described in claim 7, it is characterised in that: described thick liquid is one or two or more kinds in coal tar, mink cell focus, Fischer-Tropsch wax, paraffin；Solid particle is insoluble matter contained by solid acid alkali catalytic agent or above-mentioned thick liquid, and diameter range is 0-500 nanometer, its content range 0-5%wt..
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784229.9A CN105756924B (en) | 2014-12-15 | 2014-12-15 | Convey device and its application of the thick liquid containing solid particle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784229.9A CN105756924B (en) | 2014-12-15 | 2014-12-15 | Convey device and its application of the thick liquid containing solid particle |
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| Publication Number | Publication Date |
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| CN105756924A true CN105756924A (en) | 2016-07-13 |
| CN105756924B CN105756924B (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410784229.9A Active CN105756924B (en) | 2014-12-15 | 2014-12-15 | Convey device and its application of the thick liquid containing solid particle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107491007A (en) * | 2017-08-25 | 2017-12-19 | 广州中国科学院沈阳自动化研究所分所 | A kind of miniature constant current solution feed system in laboratory and control method |
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| JPH0960595A (en) * | 1995-08-23 | 1997-03-04 | Toshiba Battery Co Ltd | Gear pump |
| CN1162936A (en) * | 1994-11-14 | 1997-10-22 | 美国3M公司 | Magnetic dispersion conditioning process |
| DE102004056595B3 (en) * | 2004-11-24 | 2005-11-24 | Ulrich Hanf | Device for transporting viscous material, especially adhesive or sealant, has pressure system assembled from individual flat boards in stack with apertures forming cavities including pump space for gear wheels of gear wheel pump |
| CN201216930Y (en) * | 2008-06-13 | 2009-04-08 | 无锡市华灵过滤设备有限公司 | Concentrated gas generating system |
| CN102364104A (en) * | 2011-10-29 | 2012-02-29 | 董孝连 | Round-tooth worm type slurry pump |
| CN102877856A (en) * | 2012-09-17 | 2013-01-16 | 北京华强京工机械制造有限公司 | Double-power-driven system for concrete wet-spray platform vehicle and concrete wet-spray platform vehicle |
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2014
- 2014-12-15 CN CN201410784229.9A patent/CN105756924B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162936A (en) * | 1994-11-14 | 1997-10-22 | 美国3M公司 | Magnetic dispersion conditioning process |
| JPH0960595A (en) * | 1995-08-23 | 1997-03-04 | Toshiba Battery Co Ltd | Gear pump |
| DE102004056595B3 (en) * | 2004-11-24 | 2005-11-24 | Ulrich Hanf | Device for transporting viscous material, especially adhesive or sealant, has pressure system assembled from individual flat boards in stack with apertures forming cavities including pump space for gear wheels of gear wheel pump |
| CN201216930Y (en) * | 2008-06-13 | 2009-04-08 | 无锡市华灵过滤设备有限公司 | Concentrated gas generating system |
| CN102364104A (en) * | 2011-10-29 | 2012-02-29 | 董孝连 | Round-tooth worm type slurry pump |
| CN102877856A (en) * | 2012-09-17 | 2013-01-16 | 北京华强京工机械制造有限公司 | Double-power-driven system for concrete wet-spray platform vehicle and concrete wet-spray platform vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107491007A (en) * | 2017-08-25 | 2017-12-19 | 广州中国科学院沈阳自动化研究所分所 | A kind of miniature constant current solution feed system in laboratory and control method |
| CN107491007B (en) * | 2017-08-25 | 2023-09-19 | 广州中国科学院沈阳自动化研究所分所 | Miniature constant-current solution feeding system for laboratory and control method |
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| CN105756924B (en) | 2017-11-10 |
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