CN207455189U - Alkali device is unloaded in zero leakage based on gas-liquid conversion - Google Patents
Alkali device is unloaded in zero leakage based on gas-liquid conversion Download PDFInfo
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- CN207455189U CN207455189U CN201721324242.1U CN201721324242U CN207455189U CN 207455189 U CN207455189 U CN 207455189U CN 201721324242 U CN201721324242 U CN 201721324242U CN 207455189 U CN207455189 U CN 207455189U
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Abstract
The utility model discloses a kind of zero leakages based on gas-liquid conversion to unload alkali device, includes the first to the 3rd driving motor, centrifugal pump, vacuum pump, air compressor, three-position four-way electromagnetic directional valve, the first shut-off valve, the second shut-off valve, hydraulically-controlled one-way valve, the 3rd shut-off valve, the first fluid flowmeter, second liquid flowmeter and vacuum tank.The present apparatus is to increase gas-liquid conversion equipment and vacuum degree regulating system on the basis of tradition unloads alkali device, and various hydraulic control valves, small-sized storage alkali case, liquid-detecting are added in fluid path, ground can be flow to, cause environmental pollution and waste by solving the problems, such as that tradition is unloaded alkali device and unloaded when the lye remained in after alkali in pipeline is difficult to discharge, dismantles pipeline；It improves conventional centrifugal pump and leakage, the shortcoming for influencing safety easily occurs in itself.
Description
Technical field
The utility model is related to corrode class I liquid I transport unloading technical field more particularly to it is a kind of based on gas-liquid conversion
Alkali device is unloaded in zero leakage.
Background technology
In face of significant problems such as global energy crisis, environmental pollutions, there is an urgent need for tackle energy conservation and environmental protection for various mechanized equipments
Pressure, the mechanized equipment theory of environmental type gradually appears, and new solution is technically sought in effort.
30% commodity liquid caustic soda（NaOH aqueous solutions）With severe corrosive, and the tank car transported substantially not drive（Pump）,
When generally being unloaded with centrifugal pump after unloading, the Liquid Residue dismantled in pipe can flow to ground, need to rinse in time
And flushing water causes to pollute；Centrifugal pump easily leaks in itself simultaneously, causes splash, influences safety, how to realize that zero leakage will
It is a great problem in its supreme 6 meters storage alkali tank of unloading.
Traditional alkali device that unloads substantially does not meet nowadays environmentally friendly main trend, and there are some potential safety problemss.
Utility model content
Technical problem to be solved in the utility model is to be directed to the defects of involved in background technology, provides a kind of base
Alkali device is unloaded in the zero leakage of gas-liquid conversion, can solve the Liquid Residue in dismounting pipe can flow to ground, need in time
It rinses and flushing water causes to pollute, while centrifugal pump easily occurs leakage, causes splash, influences the problem of safe in itself.
The utility model uses following technical scheme to solve above-mentioned technical problem：
Alkali device is unloaded in zero leakage based on gas-liquid conversion, includes the first to the 3rd driving motor, centrifugal pump, vacuum pump, sky
Air compressor, three-position four-way electromagnetic directional valve, the first shut-off valve, the second shut-off valve, hydraulically-controlled one-way valve, the 3rd shut-off valve, first
Fluid flowmeter, second liquid flowmeter and vacuum tank；
The vacuum tank includes the first to the 3rd outlet；
Described first shut-off valve one end is connected with groove tank car outlet conduit, the other end respectively with the first fluid flowmeter, three
The P mouths of position four-way electromagnetic reversing valve are connected；
The A mouths of the three-position four-way electromagnetic directional valve, B mouthfuls be connected by one end of pipeline with the 3rd shut-off valve,
The delivery outlet of another termination air compressor of the gas-liquid isolating valve, the input port of the air compressor and big gas phase
Even；
3rd shut-off valve is used to separate gas-liquid, prevent lye from entering air compressor；
The T mouths of the three-position four-way electromagnetic directional valve are connected with the first outlet pipeline of the vacuum tank；
The second outlet of the vacuum tank is connected with the input port pipeline of the vacuum pump, the delivery outlet of the vacuum pump and
Air is connected；
3rd outlet of the vacuum tank is connected with the input port pipeline of the centrifugal pump, the delivery outlet point of the centrifugal pump
Not be connected with the input terminal of the second liquid flowmeter, hydraulically-controlled one-way valve；
The output terminal of the hydraulically-controlled one-way valve passes through second shut-off valve and the external storage alkali tank phase that alkali is unloaded for storage
Even；
Described first to the 3rd driving motor is respectively used to driving air compressor, vacuum pump and centrifugal pump.
The further prioritization scheme of alkali device is unloaded based on the zero leakage that gas-liquid is converted as the utility model, described three four
Electric change valve is electrichydraulic control gas-liquid solenoid directional control valve, and it is through-flow to be used to implement gas liquid exchange.
The further prioritization scheme of alkali device is unloaded based on the zero leakage that gas-liquid is converted as the utility model, also comprising leakage alkali
Collecting mechanism, storage alkali case and the 4th shut-off valve；
The leakage alkali collecting mechanism unloads the lye of alkali device leakage for collecting zero leakage, and is conducted into the storage alkali
In case；
The bottom of the storage alkali case is equipped with outlet, the input port which passes through the 4th shut-off valve and the centrifugal pump
Pipeline is connected.
Should the control method of alkali device be unloaded based on zero leakage of gas-liquid conversion the invention also discloses a kind of, comprising with
Lower step：
Step 1）, diversion：
First shut-off valve is opened, and three-position four-way electromagnetic directional valve is in Median Function, and P mouthfuls and T mouthfuls connect；
Second driving motor drives vacuum pump work, and vacuum tank vacuumizes, and centrifugal pump inlet is made to generate certain negative pressure, i.e., logical
It crosses vacuum pump and adjusts pump intake vacuum degree, not only avoid centrifuging pump depletion since centrifugal pump generates vapour lock and unload full of air,
And make just hydraulically full before centrifugation pump startup.
Step 2）, unload alkali：
Three-position four-way electromagnetic directional valve middle position is kept to connect, the first shut-off valve is kept open, and the second shut-off valve is opened,
3rd control motor driving centrifugation pump work so that lye transports storage alkali tank through centrifugal pump；
Step 3）, empty remaining lye：
Step 3.1）, the 3rd control motor is closed, after centrifugal pump is stopped, control three-position four-way electromagnetic directional valve is left
Station connect, first control motor driving air compressor work so that P mouth of the gas through three-position four-way valve, T mouthfuls respectively enter
Alkali lye pipeline discharges the lye remained in the duct；
Step 3.2）, when the first fluid flowmeter registration is zero, close the first shut-off valve；
When second liquid flowmeter registration is zero, the first control motor is closed, air compressor is made to be stopped, and is closed
The second shut-off valve, the 3rd shut-off valve and the second driving motor are closed, completion entirely unloads alkali flow.
The utility model compared with prior art, has following technique effect using above technical scheme：
1. the utility model head and the tail both ends liquid pipe is equipped with shut-off valve, lye in device is effectively prevented to leak.
2. the utility model unloads increase gas-liquid conversion equipment on alkali device basic in traditional, increase in hydraulic circuit
Various hydraulic valves are discharged into the lye remained in the pipeline of centrifugal pump both ends in groove tank car and storage alkali tank by gas, solution respectively
Tradition of having determined unloads alkali device and unloads the lye remained in after alkali in alkali lye pipeline when being difficult the pipeline of discharge and dismounting, flows to ground and makes
Into waste and problem of environmental pollution.
3. the utility model utilizes vacuum tank, do not have to fill pump again before unloading alkali every time, make pump automatically hydraulically full, improve biography
System centrifugal pump is easily emptied in itself, is leaked, is caused to splash, influence the defects of safe.
4. the utility model Structured Design increases inclined ramp and small-sized storage alkali case, system is finally remained in storage alkali
In case in lye suction pump, zero leakage and maximization of economic benefit purpose are realized.
5. the utility model checks whether that punching removes completely with fluid flowmeter, observation is convenient, has certain automation.
6. the utility model uses shut-off valve, there is the function of preventing lye from entering tracheae and corrode tracheae.
7. the utility model is widely used in liquid transportation art, it can not only realize unloading for basic fluid
It carries, and can realize highly corrosive industrial chemicals, such as acid, the unloading of the high aggressive chemistry raw material of alkali, it is at low cost, using side
Just.
Description of the drawings
Fig. 1 is the structure principle chart of the utility model.
In figure, the outlet of 1- groove tank cars, the first shut-off valves of 2-, the first fluid flowmeters of 3-, 4- three-position four-way electromagnetic directional valves,
The first driving motors of 5-, 6- air compressors, 7- vacuum tanks, 8- storage alkali casees, the 4th shut-off valves of 9-, 10- vacuum pumps, 11- second
Driving motor, 12- air, 13- centrifugal pumps, the 3rd driving motors of 14-, 15- second liquid flowmeters, 16- hydraulically-controlled one-way valves,
The second shut-off valves of 17-, the 3rd shut-off valves of 18-.
Specific embodiment
The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings：
The utility model can be embodied in many different forms, and should not be assumed that be limited to the embodiments described herein.
On the contrary, thesing embodiments are provided so that the disclosure is thorough and complete, and this reality will be given full expression to those skilled in the art
With new scope.In the accompanying drawings, for the sake of clarity it is exaggerated component.
It will be appreciated that though term first, second, third, etc., which may be used herein, describes each element, component and/or portion
Point, but these elements, component and/or part should not be limited by these terms.These terms be used only for by element, component and/or
Part mutually distinguishes.Therefore, first element discussed below, component and/or part are imparted knowledge to students without departing substantially from the utility model
On the premise of can become second element, component or part.
As shown in Figure 1, the utility model discloses alkali device is unloaded based on the zero leakage that gas-liquid is converted, first to the 3rd is included
Driving motor, centrifugal pump, vacuum pump, air compressor, three-position four-way electromagnetic directional valve, the first shut-off valve, the second shut-off valve, liquid
Press check valve, the first fluid flowmeter, second liquid flowmeter, vacuum tank, leakage alkali collecting mechanism, storage alkali case, the 4th shut-off valve
With the 3rd shut-off valve；
The vacuum tank includes the first to the 3rd outlet；
Described first shut-off valve one end is connected with groove tank car outlet conduit, the other end respectively with the first fluid flowmeter, three
The P mouths of position four-way electromagnetic reversing valve are connected；
The A mouths of the three-position four-way electromagnetic directional valve, B mouthfuls be connected by one end of pipeline with the 3rd shut-off valve,
The delivery outlet of another termination air compressor of 3rd shut-off valve, the input port of the air compressor and big gas phase
Even；
3rd shut-off valve is used to separate gas-liquid, prevent lye from entering air compressor；
The T mouths of the three-position four-way electromagnetic directional valve are connected with the first outlet pipeline of the vacuum tank；
The second outlet of the vacuum tank is connected with the input port pipeline of the vacuum pump, the delivery outlet of the vacuum pump and
Air is connected；
3rd outlet of the vacuum tank is connected with the input port pipeline of the centrifugal pump, the delivery outlet point of the centrifugal pump
Not be connected with the input terminal of the second liquid flowmeter, hydraulically-controlled one-way valve；
The output terminal of the hydraulically-controlled one-way valve passes through second shut-off valve and the external storage alkali tank phase that alkali is unloaded for storage
Even；
Described first to the 3rd driving motor is respectively used to driving air compressor, vacuum pump and centrifugal pump；
The leakage alkali collecting mechanism unloads the lye of alkali device leakage for collecting zero leakage, and is conducted into the storage alkali
In case；
The bottom of the storage alkali case is equipped with outlet, the input port which passes through the 4th shut-off valve and the centrifugal pump
Pipeline is connected.
The three-position four-way electromagnetic directional valve is electrichydraulic control gas-liquid solenoid directional control valve, is used to implement gas liquid and exchanges and leads to
Stream.
Should the control method of alkali device be unloaded based on zero leakage of gas-liquid conversion the invention also discloses a kind of, comprising with
Lower step：
Step 1）, diversion：
First shut-off valve is opened, and three-position four-way electromagnetic directional valve is in Median Function, and P mouthfuls and T mouthfuls connect；
Second driving motor drives vacuum pump work, and vacuum tank is evacuated, and vacuum tank is in advance full of lye, i.e., by true
Sky pump adjusts pump intake vacuum degree, centrifugal pump inlet is made to generate certain negative pressure, centrifugal pump is just hydraulically full before activation, avoids
The evacuation that may occur due to vapour lock of the centrifugal pump full of air generation and when centrifuging pump work,；Centrifugal pump inlet keeps negative pressure,
It can prevent centrifugal pump splash, influence safety.
Step 2）, unload alkali：
Three-position four-way electromagnetic directional valve middle position is kept to connect, the first shut-off valve is kept open, and the second shut-off valve is opened,
3rd control motor driving centrifugation pump work so that lye transports storage alkali tank through centrifugal pump；
Step 3）, empty remaining lye：
Step 3.1）, the 3rd control motor is closed, after centrifugal pump is stopped, control three-position four-way electromagnetic directional valve is left
Station connect, first control motor driving air compressor work so that P mouth of the gas through three-position four-way valve, T mouthfuls respectively enter
Alkali lye pipeline discharges the lye remained in the duct；
Step 3.2）, when the first fluid flowmeter registration is zero, close the first shut-off valve；
When second liquid flowmeter registration is zero, the first control motor is closed, air compressor is made to be stopped, and is closed
The second shut-off valve, the 3rd shut-off valve and the second driving motor are closed, completion entirely unloads alkali flow.
Tilt chassis can be set as leakage alkali collecting mechanism to unloading alkali device, during unloading alkali, when lye connects from pipeline
When connecing place or centrifugation bump leakage, the lye of leakage can be flowed in chassis, and is flowed in storage alkali case and gathered up along inclined chassis
Come.When storing up the lye in alkali case and reaching a certain amount of, the 4th shut-off valve is opened, one in alkali case is stored up by introducing and sets up pipe
Lye is pumped among 6 meters high of storage alkali tank by road together.
The air compressor generates gases at high pressure punching except lye remaining in corrosion-resistant liquid pipe, and with the first fluid flow
Meter, second liquid flowmeter judge whether remaining lye is rushed except complete.
4th shut-off valve connects storage alkali case, can be by bump leakage and system leak（There may be）A small amount of lye suction pump in,
Resource utilization is high, does not waste.
3rd shut-off valve separates gas-liquid, prevents lye from entering air compressor system.
Vacuum tank is equivalent to the air bag on centrifugal pump inlet line, and the vacuum degree of vacuum tank is controlled by vacuum pump, adjusts
Absolute pressure at centrifugal pump inlet centrifuges pump depletion so as to avoid generating vapour lock and unload.When predominantly next time unloads alkali, due to
System is full of air, and while centrifuging pump work must be full of lye in advance, can be by vacuum pump adjusting pump intake vacuum degree, at it
Under operating pressure, drain last time and unload all gas amount generated during the air and apparatus and process that the complete system of alkali is full of, make from
Heart pump is hydraulically full before starting.
Hydraulically-controlled one-way valve prevents that lye is flow backwards during unloading alkali, and it is smooth that alkali is unloaded in guarantee.
Those skilled in the art of the present technique are it is understood that unless otherwise defined, all terms used herein（Include skill
Art term and scientific terminology）With the identical meaning of the general understanding with the those of ordinary skill in the utility model fields
Justice.It should also be understood that those terms such as defined in the general dictionary should be understood that with upper with the prior art
The consistent meaning of meaning hereinafter, and unless defined as here, will not with the meaning of idealization or overly formal come
It explains.
Above-described specific embodiment, the purpose of this utility model, technical solution and advantageous effect have been carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (3)
1. based on gas-liquid conversion zero leakage unload alkali device, which is characterized in that comprising the first to the 3rd driving motor, centrifugal pump,
Vacuum pump, air compressor, three-position four-way electromagnetic directional valve, the first shut-off valve, the second shut-off valve, hydraulically-controlled one-way valve, the 3rd section
Only valve, the first fluid flowmeter, second liquid flowmeter and vacuum tank；
The vacuum tank includes the first to the 3rd outlet；
Described first shut-off valve one end is connected with groove tank car outlet conduit, the other end respectively with the first fluid flowmeter, three four
The P mouths of electric change valve are connected；
The A mouths of the three-position four-way electromagnetic directional valve, B mouthfuls be connected by one end of pipeline with the 3rd shut-off valve, it is described
The delivery outlet of another termination air compressor of gas-liquid isolating valve, the input port of the air compressor is connected with air；
3rd shut-off valve is used to separate gas-liquid, prevent lye from entering air compressor；
The T mouths of the three-position four-way electromagnetic directional valve are connected with the first outlet pipeline of the vacuum tank；
The second outlet of the vacuum tank is connected with the input port pipeline of the vacuum pump, the delivery outlet and air of the vacuum pump
It is connected；
3rd outlet of the vacuum tank is connected with the input port pipeline of the centrifugal pump, the delivery outlet of the centrifugal pump respectively with
The second liquid flowmeter, the input terminal of hydraulically-controlled one-way valve are connected；
The output terminal of the hydraulically-controlled one-way valve is connected by second shut-off valve with the external storage alkali tank that alkali is unloaded for storage；
Described first to the 3rd driving motor is respectively used to driving air compressor, vacuum pump and centrifugal pump.
2. alkali device is unloaded in the zero leakage according to claim 1 based on gas-liquid conversion, which is characterized in that the 3-position 4-way
Solenoid directional control valve is electrichydraulic control gas-liquid solenoid directional control valve, and it is through-flow to be used to implement gas liquid exchange.
3. alkali device is unloaded in the zero leakage according to claim 1 based on gas-liquid conversion, which is characterized in that is also received comprising leakage alkali
Collecting mechanism, storage alkali case and the 4th shut-off valve；
The leakage alkali collecting mechanism unloads the lye of alkali device leakage for collecting zero leakage, and is conducted into the storage alkali case
In；
The bottom of the storage alkali case is equipped with outlet, which passes through the 4th shut-off valve and the input port pipeline of the centrifugal pump
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721324242.1U CN207455189U (en) | 2017-10-16 | 2017-10-16 | Alkali device is unloaded in zero leakage based on gas-liquid conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721324242.1U CN207455189U (en) | 2017-10-16 | 2017-10-16 | Alkali device is unloaded in zero leakage based on gas-liquid conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207455189U true CN207455189U (en) | 2018-06-05 |
Family
ID=62252455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721324242.1U Expired - Fee Related CN207455189U (en) | 2017-10-16 | 2017-10-16 | Alkali device is unloaded in zero leakage based on gas-liquid conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207455189U (en) |
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2017
- 2017-10-16 CN CN201721324242.1U patent/CN207455189U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20211016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |