CN1189668C - Liquid delivering apparatus - Google Patents
Liquid delivering apparatus Download PDFInfo
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- CN1189668C CN1189668C CNB011141603A CN01114160A CN1189668C CN 1189668 C CN1189668 C CN 1189668C CN B011141603 A CNB011141603 A CN B011141603A CN 01114160 A CN01114160 A CN 01114160A CN 1189668 C CN1189668 C CN 1189668C
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Abstract
The present invention discloses a pneumatic liquid delivering apparatus which comprises a raw material tank C and liquid delivering tanks A and B, wherein the liquid delivering tanks A and B have liquid level and air pressure logic control functions, and are mutually and automatically switched. The raw material tank C and the liquid delivering tanks A and B are connected through pipelines, and pipelines led out from the top of liquid delivering tanks are connected with a pipeline or a device with a high-pressure or low-pressure air supply. The device has the advantages of simple mechanical structure and low manufacture cost. The constant pressure difference conveying of directly pneumatic liquid can be realized by a factory public compressed air supply or a special compressed air supply. The apparatus is statically operated, the energy conversion is not related, the energy conversion loss and the mechanical energy loss do not exist, and the problems of the leakage and the sealing of conveying liquid do not exist. No mechanical lubrication is required, and no mechanical noise exists. The pneumatic liquid delivering apparatus can be continuously and stably operated for a long time and can be used for replacing the existing various mechanical pumps for conveying liquid.
Description
Technical field
The present invention relates to a kind of liquid transporting apparatus, especially relate to a kind of air pressure drive-type liquid transporting apparatus.
Background technique
Widely used various liquid transporting apparatus mainly are various mechanical pumps now, are divided into blade type and positive displacement two big classes by its principle that acts on liquid.Its common feature is, by the moving element in attached energy transfer machine (as motor, internal-combustion engine, turbine engine etc.) and the pump energy (electric energy, chemical energy, heat energy or other form of energy) of input is converted into the kinetic energy and the potential energy of liquid, reaches the purpose of liquid supercharging and conveying.Owing to relate to the input and the conversion of energy, and the mechanical motion of parts, the complex structure of above-mentioned various mechanical pumps, parts material and processing request harshness, and the energy loss of mechanical pump in carrying the liquid process is bigger, has leakage and the sealing and the mechanical lubrication problem of carrying liquid.In addition, mechanical pump is swift in response to energy input interruption, and this has big harmfulness to the continization production process.
Act on the principle Pneumatic liquid pump different of liquid, directly apply pressure to liquid, can reduce the energy loss of liquid course of conveying with pressurized gas with various mechanical pumps, and can the reaction that input is interrupted to energy of buffering liquid course of conveying.
SU929890A number of May 23 nineteen eighty-two approval, the Russian Patent of pneumatic pump by name, adopting bottled pressurized gas is power source, is made of the binary liquid pump.Being provided with in each pump housing can be with liquid surface lifting and the liquid level sensor of air valve, the mechanical linkage of liquid in-out valve.During this pump work, the liquid level sensor in two liquid pumps is backward motion mutually with the liquid level lifting, and the air valve of Xiang Lianing, liquid in-out valve link thereupon separately, make two liquid pumps replace topping up and discharge opeing.This pump is by controlling gas, the liquid turnover of liquid pump, complex structure with liquid level sensor mechanical linkage mode; Two liquid pumps replace no liquid output between transfer period, have the transfusion pause point; Overbottom pressure gas enters atmosphere during the liquid pump topping up, the waste energy; Adopt bottled pressurized gas to be used as power, bleed pressure can not be constant for a long time, and this pneumatic pump can not be turned round for a long time continuously.
Authorized on October 8th, 1997 No. 94110525.3, the Chinese invention patent of Pneumatic liquid pump by name in order to utilize the overbottom pressure of discharging gas, improves the efficient of pneumatic pump, has adopted the binary liquid pump of pneumatic pump and sealing to form.Its main feature is the discharging gas overbottom pressure energy when utilizing the liquid pump topping up by conjuncted pneumatic pump, provides the liquid supercharging required pressurized gas with lower aerostatic press energy consumption, and accelerates the topping up speed of liquid pump.Because this invention has increased a pneumatic pump, being actually has increased by an input of cover energy and a switching mechanism, no matter therefore compare from energy utilization efficiency or from device fabrication cost, during-operation service expense aspect, this invention has more advantage unlike above-mentioned widely used various liquid machine pumps.
Summary of the invention
Deficiency at above existing machinery pump and the existence of pneumatic pump technology the invention provides a kind of air pressure and drives liquid transporting apparatus, can reduce plant investment and maintenance cost, improves liquid and carries quality, and reduce energy loss.
Air pressure of the present invention drives liquid transporting apparatus and mainly is made up of two transfusion jars that automatically switch mutually of head tank, outfit liquid level and air pressure logic control function, between head tank and the transfusion jar by pipeline and connect, described transfusion jar has liquid level and air pressure logic control function, and the transfusion tank top is drawn pipeline and linked to each other with the air machinery or the pipeline of high pressure or low pressure.
Described head tank preferably is positioned at the top of described two transfusion jars, so just can utilize the self gravitation of head tank liquid, and liquid is entered in two transfusion jars.Certainly also can utilize low-pressure gas source or other suitable technology as the case may be, drive liquid and enter in described two transfusion jars by head tank.
For the further steady conveying that reduces the pressure surge of downstream unit and guarantee liquid, a discharging knock out drum can be set, link to each other with two transfusion jars respectively by pipeline.
Even in order to guarantee downstream unit liquid feed distribution, also can establish a flow distributor again, by pipeline and discharging knock out drum or directly jar link to each other with transfusion.
For the material that prevents two transfusions jar returns head tank, on two transfusions jar and the pipeline of head tank, a safety check is set respectively.
Described high pressure or low-pressure gas source equipment can be the public or special pressurized gas facilities that is equipped with of factory, or the various containers of pressurized gas are housed.Described high pressure or low-pressure gas source pipeline can be gas pipeline networks, pipeline of other device of factory etc.
A described transfusion jar control apparatus adopts following structure:
On described and pipeline that high-pressure air source equipment or pipeline are connected, set gradually the air intake control valve and the automatic pressure modulating valve of logic switch function along the mobile direction of pressurized gas, the pressure vent valve of tool logic switch function is set on described and pipeline side line that high-pressure air source equipment or pipeline are connected, pressure vent valve links to each other with the low-pressure gas source pipeline by a stop valve, also can pass through the direct emptying of stop valve.At a described transfusion jar internal upper part liquid level detector is set, and sent device to be connected its two-way output by signaling line and the outer installment of transfusion device, and with two signal line with the output of the signal of two-way output transducer, one the road is connected to described pressure vent valve, one the road is connected to described air intake control valve, the bottom is provided with liquid level detector down in the transfusion jar, and it is connected by four road output transducers of signaling line with the outer installment of transfusion device, on the export pipeline of transfusion jar, the discharge opeing control valve is set.Sent and also be provided with power supply switch controller on the device in described four tunnel outputs, the input signal of described four road output transducers is will descend the signal of liquid level detector to import by signaling line, its output signal is divided into four the tunnel and exports by signaling line, one the tunnel outputs on the described pressure vent valve, one the tunnel outputs on described another transfusion jar outer four road output transducer power supply switch controllers that are provided with, one the tunnel outputs on the air intake control valve of tool logic switch function, on one tunnel output discharge opeing control valve.The described liquid level detector of going up is installed on the fixed position of transfusion jar with following liquid level detector, preferably adopts oscillation damping formula electronic level detector.Also can adopt other can hard-wired liquid level detector.
The control apparatus of another transfusion jar is identical therewith.
Transfusion jar and knock out drum that the present invention can require to select for use unlike material according to the character and the pressure of conveying liquid comprise various metals and nonmetallic material, organic and inorganic material.
The present invention can require to adopt different operation pressures according to the pressure of carrying liquid.
The present invention can adopt different non-liquefaction compressed gas sources according to the heterogeneity of carrying liquid, comprises various flammable and non-combustible gas, pure and mixed gas, inert gas.
Compared with prior art, the present invention has following beneficial effect:
Because it is different with various mechanical pumps that the present invention acts on the principle of liquid, use pressurized gas to exert pressure directly for the liquid level in the container, therefore the purpose that reaches the liquid supercharging and carry does not continuously relate to transformation of energy, noenergy conversion loss, the mechanical structure of equipment is simple, does not have the mechanical part of motion, does not have the mechanical loss of energy, there are not leakage and the sealing problem of carrying liquid, need not mechanical lubrication, the static running of device, liquid constant-pressure drop is carried.Because the energy that pressurized gas is stored can discharge in the continuous slowly mode of step-down, has the buffer function that the energy input is interrupted, so the liquid course of conveying can and not stop immediately with unexpected power failure homenergic input interruption accident generation.
Description of drawings
Fig. 1 is an air pressure drive-type liquid continuous conveying device principle explanatory drawing of the present invention.
Embodiment
Below in conjunction with accompanying drawing structure of the present invention and working method are further elaborated, but following listed concrete scheme is an imbody of overall plan of the present invention, is not construed as limiting the invention.
As shown in the figure, this device comprises head tank C (C jar), the defeated batch can A (A jar) of constant voltage, constant voltage defeated batch can B (B jar), knock out drum D (D jar) and flow distributor E.Head tank C is installed in A jar and B jar top.A jar and B jar are set up in parallel, and can automatically switch.There are a low-pressure gas source inlet and a relief opening in the C tank top, the low-pressure gas source inlet links to each other with low-pressure gas source pipeline G by a stop valve 23, relief opening also is provided with a stop valve 24, at the bottom of the discharge port of C jar is positioned at jar, be connected respectively in two transfusions jar by pipeline, and a safety check 10 and 20 respectively be set, at the bottom of A jar and B jar discharge port are positioned at jar at pipeline, by pipeline and be connected on the knock out drum, flow distributor E is connected to the outlet of knock out drum D by pipeline.The material feeding mouth of D jar is positioned at tank body middle part, at the bottom of discharge port is positioned at jar.The control apparatus of A jar comprises: the pressure vent valve 3 of the air intake control valve 1 of tool logic switch function, automatic pressure modulating valve 2, tool logic switch function, the last liquid level two-way output transducer 5 of going up liquid level detector 4, tool logic control function, following liquid level detector 6, following liquid level four road output transducers 7 of tool logic control function, the power supply switch controller 8 of four road output transducers, discharge opeing control valve 9.The control apparatus of B jar is identical with the A jar, comprising: the pressure vent valve 13 of the air intake control valve 11 of tool logic switch function, automatic pressure modulating valve 12, tool logic switch function, the last liquid level two-way output transducer 15 of going up liquid level detector 14, tool logic control function, following liquid level detector 16, following liquid level four road output transducers 17 of tool logic control function, the power supply switch controller 18 of four road output transducers, discharge opeing control valve 19.High-pressure air source pipeline F links with A jar and B jar respectively by automatic pressure modulating valve 2 and 12.
This air pressure drives liquid and carries purpose to press following working procedure realization continuously:
During the device running, two one in transfusion jars are in transfusion state, and one is in the liquid storage state, and during two jars of switchings, the discharging knock out drum keeps liquid to carry uninterrupted and calms down its flow and pressure surge.During original state, head tank and two defeated batch cans of constant voltage have all filled up liquid charging stock, and the air intake control valve of two defeated batch cans is opened, and the pressure of two defeated batch cans equates, other valve closing.Be the elastic closure state during the no control signal of the power switch of four road output transducers (8,18), accept its controller control when control signal is arranged.Start liquid level control loop under the A jar earlier, the back starts other control loop.The power switch (8) of A jar four road output transducers (7) powers up startup (other control circuit powers up startup subsequently), transmitter (7) sends two signals simultaneously: signal 1 disconnects the power switch (18) of B jar four road output transducers (17), this transmitter no signal output; Signal 2 is opened A jar discharge opeing control valve (9), and beginning is to knock out drum, flow distributor transferring raw material.A jar top liquid level reduces the back and is found by last liquid level detector (4) earlier, its two-way output transducer (5) sends a valve opening signal to air intake control valve (1), after control valve (1) is opened, promptly close the signalling channel of itself and transmitter (5), and connect with the signalling channel of following fluid level transmitter (7), wait for the pass valve signal that transmitter (7) is sent.When A jar liquid level descended, it is constant to keep jar internal pressure that pressure regulator valve can mend gas automatically.When A jar liquid level is reduced to down the position of liquid level detector (6), four road output transducers (7) send four different signals that receive object by following sequencing: signal 1 and signal 2 send simultaneously, signal 1 is closed A canister incoming gas control valve (1), after closing, control valve (1) promptly disconnects the signalling channel of itself and transmitter (7), and connect with the signalling channel of transmitter (5), wait for the valve opening signal that transmitter (5) is sent; Signal 2 is closed A jar liquid discharging valve (9).(control valve (1) and control valve (9) are closed the back) sent in signal 3 time-delays, A pressure tank emptying control valve (3) is opened, promptly disconnect the signalling channel of itself and transmitter (7) after control valve (3) is opened, and connect, wait for the pass valve signal that transmitter (5) is sent with the signalling channel of transmitter (5).(control valve (3) is opened the back) sent in signal 4 time-delays, the power switch of liquid level four road output transducers (17) under the B jar is connected, transmitter (17) sends two signals immediately: signal 1 disconnects the power switch (8) of liquid level four road output transducers (7) under the A jar, the output of transmitter (7) no signal; Signal 2 is opened B jar discharge opeing control valve (19), and the B jar is taken over the A jar to the flow distributor transferring raw material.A, B jar storEd liquid and guarantee that output is uninterrupted between transfer period in the knock out drum D.
After the emptying of A pressure tank, the liquid charging stock of head tank borrows low-pressure gas source pressure and/or difference of liquid level to add raw material by safety check (10) to the A jar, when treating that A jar liquid level rises to the position of liquid level detector (4), two-way output transducer (5) successively sends two signals: signal 1 is closed A pressure tank emptying control valve (3), after closing, control valve (3) promptly disconnects with the signalling channel of transmitter (5), and connect with the signalling channel of transmitter (7), wait for the valve opening signal that transmitter (7) is sent.Signal 2 is opened air intake control valve (1).After control valve (1) is opened, promptly close the signalling channel of itself and transmitter (5), and connect, wait for the pass valve signal that transmitter (7) is sent with the signalling channel of following fluid level transmitter (7).Safety check (10) and (20) can prevent that the material of A, B jar from returning head tank.Before the knock out drum D charging of flow distributor front is slack tank, and jar interior gas is compressed to a jar internal upper part after the charging, and its pressure equates with defeated batch can pressure after the balance, the flowed fluctuation of the defeated material of device when the pressurized gas in the D jar can be calmed down two jars of switchings of A, B.Adopt the pipeline of larger caliber to be connected between head tank and A, the B jar, guarantee that the low pressure topping up time of failing batch can is less than the high pressure transfusion time with safety check.
The gas classification of visualizing liquid discharge pressure size of the present invention and high-pressure air source determines whether to reclaim the overbottom pressure gas of transfusion jar discharging.If adopt the operation of reclaiming overbottom pressure gas, stop valve (22) and (26) behind two transfusion pressure tank atmospheric valves are opened, stop valve (21) and (25) are closed, simultaneously the stop valve (23) at head tank C top is opened, stop valve (24) is closed, overbottom pressure gas can enter low-pressure gas source pipeline G and reclaim, because the C jar links to each other with low-pressure gas source pipeline G, the raw material liq of C jar still can borrow self gravitation to enter two transfusion jars; If adopt the operation of not reclaiming overbottom pressure gas, stop valve (22) and (26) behind two transfusion pressure tank atmospheric valves can be closed, open stop valve (21) and (25), and overbottom pressure gas can direct emptying.Adopt when not reclaiming the operation of overbottom pressure gas, two stop valves of C tank top can select (23) to open and (24) close or (23) are closed and (24) open one of these two kinds of forms.Select (23) to open and (24) when closing, C jar raw material can enter transfusion jar under low-pressure gas source pressure and raw material deadweight stack drive, thereby accelerates the topping up speed of transfusion jar; Select (23) to close and (24) when opening, C jar raw material still borrows it from reentering transfusion jar.
Claims (5)
1. liquid transporting apparatus, comprise head tank (C), two transfusions jar (A, B), the discharge port of head tank (C) is connected with transfusion jar (A, a B) respectively by pipeline, and head tank (C) top links to each other with low-pressure gas source pipeline (G) with stop valve (23) by pipeline; Transfusion jar (A, B) be set up in parallel, the transfusion jar has liquid level control function, transfusion jar (A, B) top is drawn pipeline and is linked to each other with the low-pressure gas source pipeline with the high-pressure air source pipeline, it is characterized in that described transfusion jar has air pressure logic control function, on described and pipeline that high-pressure air source pipeline (F) is connected, the direction that flows along pressurized gas sets gradually the air intake control valve (1 with logic switch function, 11) and automatic pressure modulating valve (2,12), the pressure vent valve (3 of tool logic switch function is set on described and pipeline side line that high-pressure air source pipeline (F) is connected, 13), two stop valves (21 in parallel after the described atmospheric valve, 22,25,26), one of them described stop valve (22,26) is connected with low-pressure gas source pipeline (G), another described stop valve (21,25) leads to atmosphere; At a described transfusion jar internal upper part liquid level detector (4 is set, 14), and with its two-way output transducer (5 by signaling line and transfusion jar outer installment, 15) connect, and with signaling line with two-way output transducer (5,15) signal output, one the road is connected to described pressure vent valve (3,13), one the road is connected to described air intake control valve (1,11), the bottom is provided with liquid level detector (6 down in the transfusion jar, 16), on the export pipeline of transfusion jar, discharge opeing control valve (9,19) is set, outside at described transfusion jar also is provided with four road output transducers (7,17), on described four road output transducers, also be provided with power supply switch controller (8,18), described four road output transducers (7,17) input signal is the signal input that will descend liquid level detector (6,16) by signaling line, and its output signal is divided into four the tunnel and exports by signaling line, one the tunnel outputs on the described pressure vent valve (3,13), the one tunnel output on another transfusion jar outer four road output transducer power supply switch controllers (18,8) that are provided with, one the tunnel outputs on the air intake control valve of tool logic switch function (1,11), the one tunnel output on the discharge opeing control valve (9,19).
2. according to the described liquid transporting apparatus of claim 1, it is characterized in that described head tank (C) is positioned at the top of described transfusion jar (A, B).
3. according to the described liquid transporting apparatus of claim 1, it is characterized in that described transfusion jar liquid outputs to knock out drum (D).
4. according to the described liquid transporting apparatus of claim 1, it is characterized in that described transfusion jar (A, a B) liquid outlet is connected to knock out drum (D) and flow distributor (E) successively by pipeline.
5. according to the described liquid transporting apparatus of claim 1, it is characterized in that the pipeline between described transfusion jar and the head tank is provided with safety check (10,20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011141603A CN1189668C (en) | 2001-07-02 | 2001-07-02 | Liquid delivering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011141603A CN1189668C (en) | 2001-07-02 | 2001-07-02 | Liquid delivering apparatus |
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| Publication Number | Publication Date |
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| CN1393643A CN1393643A (en) | 2003-01-29 |
| CN1189668C true CN1189668C (en) | 2005-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011141603A Expired - Lifetime CN1189668C (en) | 2001-07-02 | 2001-07-02 | Liquid delivering apparatus |
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| CN (1) | CN1189668C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613072B (en) * | 2008-06-26 | 2013-02-13 | 北京源德生物医学工程有限公司 | Method and device for transferring liquid |
| CN102951629A (en) * | 2012-10-29 | 2013-03-06 | 南昌大学 | Constant-pressure feeding device for carbon nanotube synthesis furnace |
| CN102966606B (en) * | 2012-11-23 | 2015-08-19 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of hydraulic system using pressurized air as power |
| CN104436815B (en) * | 2014-12-20 | 2016-08-17 | 应跃斌 | The liquid continuous feeding device of Pneumatic constant pressure and method |
| CN108131896A (en) * | 2017-12-28 | 2018-06-08 | 上海华林工业气体有限公司 | The system and method that HYCO ice chest Double liquid state CO tanks switch hydrops and outer supplied gas |
| CN109779818A (en) * | 2018-12-20 | 2019-05-21 | 张金强 | Make the electricity generation system of water circular flow using compressed air |
| CN110421827A (en) * | 2019-06-21 | 2019-11-08 | 北京鑫航成科技发展有限公司 | A kind of high-speed silent valve material feeding encapsulating machine |
| CN113494486A (en) * | 2020-04-08 | 2021-10-12 | 中石化南京化工研究院有限公司 | Gas-driven liquid pump |
| CN114278620B (en) * | 2020-12-31 | 2024-01-02 | 广东管辅能源科技有限公司 | Liquid recovery method and device for multiphase flow mixed transportation |
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2001
- 2001-07-02 CN CNB011141603A patent/CN1189668C/en not_active Expired - Lifetime
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| CN1393643A (en) | 2003-01-29 |
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