CN207018820U - A kind of negative pressure continuous discharge device - Google Patents
A kind of negative pressure continuous discharge device Download PDFInfo
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- CN207018820U CN207018820U CN201720896518.7U CN201720896518U CN207018820U CN 207018820 U CN207018820 U CN 207018820U CN 201720896518 U CN201720896518 U CN 201720896518U CN 207018820 U CN207018820 U CN 207018820U
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- vacuum
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- receiving tank
- negative pressure
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Abstract
The next receiving tank that the upper receiving tank and a tablecloth that negative pressure continuous discharge device disclosed in the utility model is mainly arranged in juxtaposition by two with height are put thereunder is formed, the top of two upper receiving tanks is connected by feeding three-way switch valve with liquid feedstock, and its bottom is connected by two upper baiting valves with the top of the next head tank；Vacuum orifice at the top of two upper receiving tanks is connected with vacuum three-way switch valve, is then sequentially connected upper pressure gauge and upper vacuum stop valve again；The bottom discharge mouth of the next emptying tank is connected with the next baiting valve, and top drain is connected with atmospheric valve, and top vacuum orifice is sequentially connected the next pressure gauge and the next vacuum stop valve；Pipeline after the vacuum stop valve of up/down position is connected after converging with vavuum pump.The negative pressure continuous discharge system architecture is compact, applied widely, is particularly suitable for needing the middle-size and small-size experimental rig of negative pressure switching demarcation and/or negative pressure continuous discharge.
Description
Technical field
The utility model belongs to technical field of petrochemical industry, relates generally to a kind of negative pressure continuous discharge device, is particularly suitable for
In the middle-size and small-size experimental rig for needing negative pressure switching demarcation and/or negative pressure continuous discharge.
Background technology
In thermally sensitive chemical reaction and separation process, high temperature can cause material to decompose or be denatured, therefore general choosing
Select and operated under subnormal ambient.But subject matter existing for negative pressure system, which is collection of products and drainage system, to be needed constantly to break
Sky, up-stream system pressure oscillation is easily caused, influence the quiet run of device.
In order to solve this problem, the A of Chinese invention patent CN 103497136 disclose high vacuum continuous liquid-discharging device,
It is mainly used in the continuous production of nature strength thing, its key point is to be provided with two height after short-path evaporator to arrange
Fluid reservoir, the setting height(from bottom) of the first fluid reservoir is less than the second fluid reservoir, utilizes the fluid column between two tanks to maintain Distallation systm
Vacuum；Gear pump and delivery pump are respectively equipped with two liquid storage pot bottoms, ensures that lutein connects in the case of not broken sky
Continuous discharge opeing, the load of vavuum pump is reduced, is adapted to high-volume continuous production；But the invention shortcoming be device arrangement it is not tight enough
Gather, and be only applicable to the high viscosity medium of mobility extreme difference because its vacuum rely primarily on two height arrangement fluid reservoirs between
Fluid column maintain, an atmospheric pressure will maintain being transported under condition of high vacuum degree for low-viscosity (mobile) liquid system equivalent to 10m water-columns
OK, the second fluid reservoir must be necessarily arranged at very high place, and this is clearly worthless.The U of utility model patent CN 203556156
Disclose a kind of vacuum and continuously produce liquid receiving tank, be that a storage tank is divided into two parts up and down with dividing plate, and in upper and lower tank
External side is provided with one and is provided with distillation with valvular communicating pipe, tank body top and receives valve, upper atmospheric valve and vacuum valve, upper tank body
Side be provided with liquid level gauge, lower tank side is provided with lower atmospheric valve, and tank base is provided with baiting valve.When the liquid level gauge of upper tank body shows
When showing that liquid level exceedes half, upper and lower coupling cock is shut, baiting valve is opened and lower atmospheric valve, liquid can is released, system
Vacuum do not destroy, distill without stopping, realizing continuous still operation.Can from the principle Analysis of vacuum tank
Know, the vacuum described in this patent, which continuously produces liquid receiving tank, will realize continuous blowing, then the pressure difference of upper and lower tank can not be more than upper
Pressure caused by tank liquid level, namely the vacuum of system must be very low, so as to technically define its use range.This
Outside, the patent separates upper and lower tank with central dividing plate, and pressure alternately changes during use, easily causes tank body unstability.
Utility model content
The purpose of this utility model is to be directed to technological deficiency existing for existing apparatus, proposes a kind of negative pressure continuous discharge dress
Put, it is narrow to solve existing apparatus use range, poor for applicability to low viscosity liquid or the problem of be only applicable to rough vacuum operating mode, can
Continuous draining under different viscosities liquid and different vacuums is realized, meets middle-size and small-size experimental rig negative pressure switching demarcation and/or bears
The demand of continuous discharge is pressed, effectively increases the applicability of negative pressure continuous discharge system and the compactedness of arrangement.
Technical scheme is used by the utility model realizes above-mentioned purpose：A kind of negative pressure continuous discharge system, including two
The upper receiving tank of platform, liquid level gauge, upper baiting valve, the next receiving tank, the next baiting valve, atmospheric valve and vavuum pump, it is described it is upper/
Bottom receives pot sidewall and is equipped with described liquid level gauge, and charging aperture and vacuum orifice, bottom are provided with the top of described upper receiving tank
Portion is provided with discharging opening, is provided with charging aperture, drain and vacuum orifice at the top of described the next emptying tank, bottom is provided with discharging opening；
Also include charging three-way switch valve, vacuum three-way switch valve, upper pressure gauge, upper vacuum stop valve, the next pressure gauge and under
Position vacuum stop valve；Described charging three-way switch valve upper interface is connected with liquid feedstock, and the interface of bottom two is respectively with two
Its top feed mouth of the upper receiving tank of platform is connected；The bottom discharge mouth of two upper receiving tanks is connected to a upper blowing respectively
Valve, two upper baiting valve outlet lines converge rear to be connected with its top feed mouth of the next receiving tank；The suction line of vavuum pump
It is divided into two-way before vacuum pump inlet, is connected all the way by vacuum switching valve with the vacuum orifice of two upper receiving tanks, it is another
Road is connected with the vacuum orifice of the next receiving tank.
Further, for two described upper receiving tanks to be arranged in juxtaposition with height, the next receiving tank is arranged in upper receiving tank
Lower section.
Further, a pressure gauge and a vacuum stop valve are equipped with described two-way vacuum lines.
The utility model has the advantage of：1）High-viscous liquid and low viscosity liquid can be applied to simultaneously, be also applied for from low
Vacuum has greatly expanded the adaptability of the negative pressure continuous discharge system to the various operating modes of condition of high vacuum degree；2）It can expire
The middle-size and small-size experimental rig negative pressure switching demarcation of foot and/or the demand of negative pressure continuous discharge, greatly improve negative pressure continuous discharge system
The application and characteristics of compact layout of system.
Brief description of the drawings
Fig. 1 is the schematic diagram of system described in the utility model.
In figure, 1~2, upper receiving tank；3rd, the next receiving tank；1a~3a, liquid level gauge；4th, vavuum pump；5th, three are fed
Direction changeover valve；6th, vacuum three-way switch valve；7~8, upper baiting valve；9th, atmospheric valve；10th, the next baiting valve；11st, the next vacuum
Stop valve；12nd, upper vacuum stop valve；13rd, upper pressure gauge；14th, the next pressure gauge；A, liquid feedstock；B, air；C, liquid
Discharging；D, tail gas.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more apparent, below in conjunction with drawings and Examples pair
The utility model is described in further detail.It should be appreciated that specific embodiment described herein is only explaining that this practicality is new
Type, it is not used to limit the utility model.
Negative pressure and vacuum described in the utility model are meant that identical.
As shown in figure 1, negative pressure continuous liquid-discharging device described in the utility model is mainly connect by upper receiving tank 1 and 2, bottom
Closed cans 3, liquid level gauge 1a~3a, vavuum pump 4, charging three-way switch valve 5, vacuum three-way switch valve 6, upper baiting valve 7 and 8, put
Empty valve 9, the next baiting valve 10, the next vacuum stop valve 11, upper vacuum stop valve 12, upper pressure gauge 13 and the next pressure gauge
14 compositions.
Liquid feedstock A is divided into two-way into hypsokinesis obliquely from the suitable for reading of charging three-way switch valve 5, all the way with upper reception
The charging aperture at the top of tank 1 is connected, and upper receiving tank 1 carries liquid level gauge 1a, and its bottom discharge mouth is connected with upper baiting valve 7；Separately
The charging aperture with the upper top of receiving tank 2 is connected all the way, and upper receiving tank 2 carries liquid level gauge 2a, and its bottom discharge mouth is connected with
Upper baiting valve 8；The outlet line of upper baiting valve 7 and upper baiting valve 8 collect diagonally downward for after a pipeline with bottom
The charging aperture at the top of receiving tank 3 is connected；For upper receiving tank 1 and 2 to be arranged in juxtaposition with height, the next receiving tank 3 is arranged in upper connect
The lower section of closed cans；Three described receiving tank arrangements contribute to liquid to switch between different upper and lower receiving tanks, full
Foot unit negative pressure switching demarcation and the requirement of negative pressure continuous discharge.
Pumped vacuum systems described in the utility model is divided into two-way before vavuum pump, is vacuumized all the way for upper receiving tank and is
System, another way is the next receiving tank pumped vacuum systems；The connected mode of upper receiving tank pumped vacuum systems is：Vacuum threeway switches
Vacuum orifice of two interfaces of valve 6 respectively with upper receiving tank 1 and 2 is connected, and another interface is sequentially connected upper pressure gauge
13 and upper vacuum stop valve 12；The connected mode of the next receiving tank pumped vacuum systems is：The vacuum orifice of the next receiving tank 3 according to
The next pressure gauge 14 of secondary connection and the next vacuum stop valve 11；Up/down position receiving tank pumped vacuum systems is in upper vacuum stop valve
12 and the next vacuum stop valve 11 after converge for a pipeline, be connected with the entrance of vavuum pump 4, the tail that vavuum pump 4 is extracted out
Outside gas D dischargers.Vacuum switching is carried out as a result of valve rather than is sealed by liquid-column height, therefore described negative liquid is continuous
Tapping system characteristics of compact layout, you can with the operating mode suitable for different vacuums, the liquid of different viscosities can also be applied, by cutting
Change vacuum three-way switch valve 6, upper vacuum stop valve 12, the next vacuum stop valve 11 and upper baiting valve 7 and 8, it is possible to achieve
Pot liquid and the switching undisturbed of operating pressure are received, ensures that the pressure of up-stream system is steady.
The specific implementation flow of negative pressure continuous draining system described in the utility model is as follows：
Embodiment 1：
The embodiment is the implementing procedure that negative pressure switches calibration mode.
Before device is not yet stable, atmospheric valve 9 is closed, opens upper vacuum stop valve 12 and the next vacuum stop valve
11, switching vacuum three-way switch valve 6 is communicated with upper receiving tank 1, and three-way switch valve 5 is switched to and communicated with upper receiving tank 1,
Upper baiting valve 7 and 8, the next baiting valve 10 are closed, vavuum pump 4 is opened, makes upper receiving tank 1 and the next receiving tank 3 vacuum
It is identical（I.e. upper pressure gauge 13 is identical with the counting of the next pressure gauge 14）, now liquid feedstock A along charging three-way switch valve 5 enter
Enter in upper receiving tank 1；After device is stable and demarcation starts, three-way switch valve 5 is switched to and communicated with upper receiving tank 2,
Vacuum three-way switch valve 6 is switched to simultaneously and communicated with upper receiving tank 2, demarcation liquid is collected into upper receiving tank 2；So
After open upper baiting valve 7, the non-demarcation liquid in upper receiving tank 1 is transferred in the next receiving tank 3, due to upper reception
Tank 1 is identical with the next vacuum of receiving tank 3, and the next receiving tank is transferred to by upper receiving tank without the broken empty liquid that can be achieved
In；After the liquid in upper receiving tank 1 is put only, upper baiting valve 7 and the next vacuum stop valve 11 are closed, opens emptying slowly
Valve 9, air B is slowly entered in the next receiving tank 3, after the reading back to zero of the next pressure gauge 14, open the next baiting valve 10,
Non- demarcation liquid in the next receiving tank 3 is put net and reclaimed.Atmospheric valve 9 and the next baiting valve 10 are closed, opens the next vacuum
Stop valve 11, make the vacuum of the next receiving tank 3 consistent with upper receiving tank 2.It is longer when the nominal time, single reception tank volume
, it is necessary to switch receiving tank when insufficient；After the liquid level gauge 2a of upper receiving tank 2 reaches specified altitude assignment, again by three-way switch valve 5
It is switched to and is communicated with upper receiving tank 1, and vacuum three-way switch valve 6 will be changed simultaneously and communicated with upper receiving tank 1, demarcation liquid enters
Enter in upper receiving tank 1；Upper baiting valve 8 is opened, the liquid in upper receiving tank 2 is transferred in the next receiving tank 3, due to
Upper receiving tank 2 is identical with the next vacuum of receiving tank 3, and bottom is transferred to by upper receiving tank without the broken empty liquid that can be achieved
Receiving tank；Then use and release and collect the first tank liquid discharging C with method with the non-demarcation liquid phase of releasing；Hereafter constantly repeat
The liquid feedstock stated and vacuumize switching mode, it is possible to achieve negative pressure incision dehorn is fixed and continuous discharge.
Embodiment 2：
The embodiment is the implementing procedure of negative pressure continuous discharge pattern.
Atmospheric valve 9 is closed, opens upper vacuum stop valve 12 and the next vacuum stop valve 11, switches vacuum three-way switch valve
6 are communicated with upper receiving tank 1, and three-way switch valve 5 is switched to and communicated with upper receiving tank 1, close upper baiting valve 7 and 8, under
Position baiting valve 10, opens vavuum pump 4, makes upper receiving tank 1 identical with the next vacuum of receiving tank 3（The i.e. upper He of pressure gauge 13
The counting of the next pressure gauge 14 is identical）, during liquid feedstock A is along charging three-way switch valve 5 into upper receiving tank 1；Connect when upper
The liquid level gauge 1a instructions of closed cans 1 are needed to change tank after reaching specified liquid level, and three-way switch valve 5 is switched to and the upper phase of receiving tank 2
It is logical, while vacuum three-way switch valve 6 is switched to and communicated with upper receiving tank 2, liquid is collected into upper receiving tank 2；Beat
Upper baiting valve 7 is opened, the liquid in upper receiving tank 1 is transferred in the next receiving tank 3, due to upper receiving tank 1 and bottom
The vacuum of receiving tank 3 is identical, is transferred to without the broken empty liquid that can be achieved by upper receiving tank in the next receiving tank；Connect when upper
After liquid in closed cans 1 is put only, upper baiting valve 7 and the next vacuum stop valve 11 are closed, atmospheric valve 9 is opened slowly, makes air B
Slowly enter in the next receiving tank 3, after the reading back to zero of the next pressure gauge 14, open the next baiting valve 10, bottom is received
Liquid in tank is put net and reclaimed.Atmospheric valve 9 and the next baiting valve 10 are closed, the next vacuum stop valve 11 is opened, connects bottom
The vacuum of closed cans 3 is identical with upper receiving tank 2；After the liquid level gauge 2a of upper receiving tank 2 reaches specified altitude assignment, again by three
Direction changeover valve 5 is switched to be communicated with upper receiving tank 1, and will be changed vacuum three-way switch valve 6 simultaneously and be communicated with upper receiving tank 1,
Liquid is collected into again in upper receiving tank 1；Hereafter aforesaid liquid charging, tapping are constantly repeated and vacuumizes switching mode,
Continuous discharge under negative pressure can be realized.
Claims (3)
1. a kind of negative pressure continuous discharge device, including two upper receiving tanks（1-2）, liquid level gauge（1a-3a）, upper baiting valve
（7-8）, the next receiving tank（3）, the next baiting valve（10）, atmospheric valve（9）And vavuum pump（4）, described up/down position receiving tank side
Wall is equipped with described liquid level gauge, and charging aperture and vacuum orifice are provided with the top of described upper receiving tank, and bottom is provided with discharging opening,
Charging aperture, drain and vacuum orifice are provided with the top of described the next emptying tank, bottom is provided with discharging opening；It is characterized in that：Also
Including feeding three-way switch valve（5）, vacuum three-way switch valve（6）, upper pressure gauge（13）, upper vacuum stop valve（12）, under
Position pressure gauge（14）With the next vacuum stop valve（11）, described charging three-way switch valve upper interface is connected with liquid feedstock,
Its top feed mouth of the interface of bottom two respectively with two upper receiving tanks is connected, the bottom discharge of two upper receiving tanks
Mouth is connected to a upper baiting valve respectively, and two upper baiting valve outlet lines converge rear and the next receiving tank its top feed mouth
It is connected, the suction line of vavuum pump is divided into two-way before vacuum pump inlet, passes through vacuum switching valve and two upper receptions all the way
The vacuum orifice of tank is connected, and another way is connected with the vacuum orifice of the next receiving tank.
2. negative pressure continuous discharge device according to claim 1, it is characterised in that：Two described upper receiving tanks（1-
2）It is arranged in juxtaposition for same height.
3. negative pressure continuous discharge device according to claim 1, it is characterised in that：In described two-way vacuum lines
Provided with a pressure gauge and a vacuum stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720896518.7U CN207018820U (en) | 2017-07-24 | 2017-07-24 | A kind of negative pressure continuous discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720896518.7U CN207018820U (en) | 2017-07-24 | 2017-07-24 | A kind of negative pressure continuous discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018820U true CN207018820U (en) | 2018-02-16 |
Family
ID=61482199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720896518.7U Active CN207018820U (en) | 2017-07-24 | 2017-07-24 | A kind of negative pressure continuous discharge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018820U (en) |
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2017
- 2017-07-24 CN CN201720896518.7U patent/CN207018820U/en active Active
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