CN208075337U - A kind of polyamide 6 technique conduction oil oil-supplementing system - Google Patents
A kind of polyamide 6 technique conduction oil oil-supplementing system Download PDFInfo
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- CN208075337U CN208075337U CN201820380992.9U CN201820380992U CN208075337U CN 208075337 U CN208075337 U CN 208075337U CN 201820380992 U CN201820380992 U CN 201820380992U CN 208075337 U CN208075337 U CN 208075337U
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- China
- Prior art keywords
- oil
- valve
- pressure
- pressure gauge
- heating group
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Abstract
The utility model discloses a kind of polyamide 6 technique conduction oil oil-supplementing systems, including heat conduction oil tank, are connected to gear pump by the first thermal conductive oil pipeline equipped with inlet stop valve；Gear pump is connected to by the second thermal conductive oil pipeline equipped with outlet shutoff valve and repairing main valve with heating group, in the inlet communication that the oil outlet of outlet shutoff valve passes through third thermal conductive oil pipeline and conduction oil tank top equipped with bypass pneumatic stopping valve；By system repairing, pressure gauge, distance-transmission pressure gauge, system Fill valve, system running pressure table and heating system form maximal pressure heating group on the spot, and distance-transmission pressure gauge is made to constitute regulating loop with bypass pneumatic stopping valve, stablize oil compensation pressure PT11 by automatically adjusting bypass valve PV11, above two rough sledding will not be occurred by ensureing that gas/liquid is added in hot systems energy oil replenishing process；And increase DCS monitoring, it is convenient for middle control personnel real-time tracking, because no longer adjusting bypass valve manually, execute-in-place saves manpower.
Description
Technical field
The utility model belongs to chemical production technical field, is related to a kind of conduction oil oil-supplementing system, more particularly to one kind
Polyamide 6 technique conduction oil oil-supplementing system.
Background technology
Chemical Manufacture enterprise commonly uses high-temperature heat carrier and is heated to material, and wherein organic heat carrier, that is, conduction oil is because making
With the features such as temperature range is wide, calorific value is high and low-vapor pressure, it is widely used.Conduction oil also has gaseous state using the existing liquid of form,
Liquid phase heat-conduction oil heating system is generally made of head tank, circulating pump, heat exchanger etc., gas-phase heat conducting oil heating system key equipment
For evaporator.No matter which kind of form heating system, be required for carrying out repairing operation to system during initial launch, and be
In system temperature-rise period, due to rising-heat contracting-cold and system exhaust etc., it is also necessary to repeatedly carry out necessary repairing to system；Especially
For vapour phase heating system, even if after system run all right, since operation often is exhausted to system, and needing periodically to system
Middle conduction oil carries out aliquot replacement, and repairing operation is relatively more.
Polyamide 6 technological design conduction oil oil-supplementing system is shown in Fig. 1, by heat conduction oil tank, discharging gear pump and many valves
Instrument is constituted.Its repairing operation is followed successively by：Standard-sized sheet gear pump exits and entrances valve, outputs a mouthful bypass valve, opens repairing main valve, tooth punching wheel
Pump, adjust bypass valve opening, the PG11 of oil compensation pressure on the spot to be seen be more than system pressure PG21 when, open the system Fill valve into
Row repairing operates, and closes system Fill valve after reaching desired liquid level, stops gear pump at once.
Gear pump is positive displacement pump, if bypass valve control is uncomfortable, it may appear that following two rough sledding：First, bypass valve
Aperture is too small, and gear pump is caused to build the pressure, and PG11 values outrange damage, or even can damage gear pump；Second is that when Fill valve is opened, it is other
Road valve relative opening degree is too big, leads to PG11 in oil replenishing process<PG21 so that evaporator high temperature deep fat blows back into oil-supplementing system,
Generate security risk.
Invention content
In order to solve the problems in the existing technology, the utility model discloses a kind of polyamide 6 technique conduction oils
Oil-supplementing system stablizes oil compensation pressure PT11 by automatically adjusting bypass valve PV11, ensures that gas/liquid is added hot systems energy repairing
Above two rough sledding will not occur in journey；And increase DCS monitoring, it is convenient for middle control personnel real-time tracking, because no longer adjusting manually
Bypass valve is saved, execute-in-place saves manpower.
What the technical solution of the utility model was realized in：
The utility model discloses a kind of polyamide 6 technique conduction oil oil-supplementing systems, including：Heat conduction oil tank, gear
Pump, heating group and the DSC remote control apparatuses for controlling and showing for pressure, temperature, liquid level, flow, regulating valve；The heat conduction
The conduction oil outlet of oil tank bottom is connected to by the first thermal conductive oil pipeline with the oil inlet of gear pump, and in first heat conduction
Oil pipe line is equipped with inlet stop valve；The oil outlet of the gear pump is connected to by the second thermal conductive oil pipeline with heating group, in institute
It states the second heat-conducting oil pipes road and is equipped with outlet shutoff valve and repairing main valve successively, and increase in the oil outlet of the outlet shutoff valve
Inlet communication equipped with third thermal conductive oil pipeline Yu conduction oil tank top, and bypass is equipped on third heat-conducting oil pipes road
Pneumatic stopping valve；The heating group is made of maximal pressure heating group and at least one common heating group, and the maximal pressure adds
Hot group be by the pressure for adopting pressure point highest position system repairing on the spot pressure gauge, distance-transmission pressure gauge, system Fill valve,
System running pressure table and heating system are sequentially connected composition, and so that distance-transmission pressure gauge is constituted with bypass pneumatic stopping valve and adjust
Circuit, the common heating group are by sequentially connected system repairing pressure gauge, system Fill valve, system running pressure table on the spot
With heating system composition.
DCS remote control apparatuses make all important indexs, such as pressure, temperature, liquid by being electrically connected with position to be shown
Position, flow, regulating valve and technological process can all be shown on DCS pictures, and adjusted control.
Pneumatic stopping valve and distance-transmission pressure gauge are bypassed all at positive interaction regulating loop, logical relation is：It is assumed that teletransmission pressure
Power table setting value is X (MPa), and when other reasons cause distance-transmission pressure gauge to be higher than X (MPa), bypass pneumatic stopping valve aperture can be certainly
Dynamic accordingly to open greatly, final distance-transmission pressure gauge value of stablizing is X (MPa);On the contrary, when distance-transmission pressure gauge value is less than X (MPa), bypass
Pneumatic stopping valve aperture can turn down automatically, and adjusting/stabilization distance-transmission pressure gauge value is at X (MPa).
Compared with prior art, the utility model has the advantages that：
1）Bypass pneumatic stopping valve with for controlling the distance-transmission pressure gauge of oil compensation pressure by constituting regulating loop guarantee benefit
The stabilization of oil pressure improves repairing security performance；
2）Only the highest during pressure point is adopted in all heating system repairings a little locate be arranged a distance-transmission pressure gauge represent each system
The oil compensation pressure table of system, and incoming DCS is shown；Cost of investment is few, and is monitored in real time convenient for middle control personnel；
3）Because bypass valve aperture realizes the automatic adjustment for having target, the repairing gear pump start-stop time is abundant, execute-in-place
Save manpower；
4）It improves former design and relies only on the manually-operated method of instrument guidance on the spot, overcoming may be because bypass valve opening be too big
Or too small caused unsafe condition；And increase DCS remote control apparatuses, safe operation performance is improved, while saving live behaviour
Make manpower.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the flow diagram of conduction oil oil-supplementing system in the prior art.
Fig. 2 is the flow diagram of conduction oil oil-supplementing system in utility model embodiment.
In Fig. 1：1, heat conduction oil tank；2, inlet stop valve；3, gear pump；4, outlet shutoff valve；5, shut-off valve is bypassed；6,
Repairing main valve；7, repairing pressure gauge on the spot（PG11）；8, system Fill valve；9, system running pressure table（PG21）；10, heating system
System.
In Fig. 2：1, heat conduction oil tank；2, inlet stop valve；3, gear pump；4, outlet shutoff valve；5, the pneumatic cut-off of bypass
Valve（PV11）；6, repairing main valve；7,1# systems repairing pressure gauge on the spot（PG11）；8, distance-transmission pressure gauge（PT11）；9,1# systems
Fill valve；10,1# system running pressures table（PG21）；11,1# heating systems；12, j# systems repairing pressure gauge on the spot（PG1j）；
13, j# systems Fill valve；14, j# system running pressures table（PG2j）；15, j# heating systems.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment
Polyamide 6 technique conduction oil oil-supplementing system as shown in Figure 2, including heat conduction oil tank 1, gear pump 3, heating group
With the DSC remote control apparatuses for controlling and showing for pressure, temperature, liquid level, flow, regulating valve；1 bottom of heat conduction oil tank
The conduction oil outlet in portion is connected to by the first thermal conductive oil pipeline with the oil inlet of gear pump 3, and in first thermal conductive oil pipeline
It is equipped with inlet stop valve 2；The oil outlet of the gear pump 3 is connected to by the second thermal conductive oil pipeline with heating group, described
Two heat-conducting oil pipes road is equipped with outlet shutoff valve 4 and repairing main valve 6 successively, and increases in the oil outlet of the outlet shutoff valve 4
Inlet communication equipped with 1 top of third thermal conductive oil pipeline and heat conduction oil tank, and side is equipped on third heat-conducting oil pipes road
Road pneumatic stopping valve（PV11）5；The heating group is made of maximal pressure heating group and a common heating group, the highest
Pressure heating group is the 1# systems repairing pressure gauge on the spot by the pressure for adopting pressure point highest position（PG11）7, teletransmission pressure
Table（PT11）8,1# systems Fill valve 9,1# system running pressure tables（PG21）10 and 1# heating systems 11 are sequentially connected composition,
And make distance-transmission pressure gauge（PT11）8 with bypass pneumatic stopping valve（PV11）5 constitute regulating loops, the common heating group be by according to
The j# systems repairing of secondary connection pressure gauge on the spot（PG1j）12, j# systems Fill valve 13, j# system running pressure tables（PG2j）14
It is formed with j# heating systems 15.
Bypass pneumatic stopping valve（PV11）5 and distance-transmission pressure gauge（PT11）8 all at positive interaction regulating loop, logical relation
For：It is assumed that distance-transmission pressure gauge（PT11）8 setting values are 0.5MPa, and other reasons lead to distance-transmission pressure gauge（PT11）8 are higher than
When 0.5MPa, pneumatic stopping valve is bypassed（PV11）5 apertures can accordingly be held greatly automatically, finally stablize distance-transmission pressure gauge（PT11）8 values
For 0.5MPa；On the contrary, working as distance-transmission pressure gauge（PT11）When 8 values are less than 0.5MPa, pneumatic stopping valve is bypassed（PV11）5 apertures can be certainly
It is dynamic to turn down, adjusting/stabilization distance-transmission pressure gauge（PT11）8 values are in 0.5MPa.
It is PG11 to mark all gas/liquid heat phase group repairings to adopt the pressure of pressure point highest position, and in 1# system repairings
Pressure gauge on the spot（PG11）Distance-transmission pressure gauge is set at 7（PT11）8, (1# systems repairing pressure gauge on the spot（PG11）7 can be to remote
Pass pressure gauge（PT11）8 accuracy is calibrated）So that distance-transmission pressure gauge（PT11）8 with bypass pneumatic stopping valve
（PV11）5 constitute regulating loop；Because to distance-transmission pressure gauge（PT11）8 are in the extreme higher position of all system repairing pressure points, because
This PT11=PG11<PG1j.In system oil replenishing process, distance-transmission pressure gauge is arranged in DCS remote control apparatuses（PT11）8 values are for this
Unite oil compensation pressure minimum value PG2j+0.2MPa, bypasses pneumatic stopping valve（PV11）It can guarantee corresponding system in the process after 5 throwings are automatic
The PG1j of system>PG2j and it will not cause to build the pressure.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (1)
1. a kind of polyamide 6 technique conduction oil oil-supplementing system, which is characterized in that including：Heat conduction oil tank, gear pump, heating
Group and the DSC remote control apparatuses for controlling and showing for pressure, temperature, liquid level, flow, regulating valve；The heat conduction oil tank
The conduction oil outlet of bottom is connected to by the first thermal conductive oil pipeline with the oil inlet of gear pump, and in first thermal conductive oil pipeline
It is equipped with inlet stop valve；The oil outlet of the gear pump is connected to by the second thermal conductive oil pipeline with heating group, described second
Heat-conducting oil pipes road is equipped with outlet shutoff valve and repairing main valve successively, and has additional the in the oil outlet of the outlet shutoff valve
The inlet communication of three thermal conductive oil pipelines and conduction oil tank top, and pneumatic section of bypass is equipped on third heat-conducting oil pipes road
Only valve；The heating group is made of maximal pressure heating group and at least one common heating group, and the maximal pressure heating group is
By the system repairing of the pressure for adopting pressure point highest position, pressure gauge, distance-transmission pressure gauge, system Fill valve, system are transported on the spot
Row pressure gauge and heating system are sequentially connected composition, and distance-transmission pressure gauge is made to constitute regulating loop with bypass pneumatic stopping valve,
The common heating group be by sequentially connected system repairing on the spot pressure gauge, system Fill valve, system running pressure table and add
Hot systems composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380992.9U CN208075337U (en) | 2018-03-21 | 2018-03-21 | A kind of polyamide 6 technique conduction oil oil-supplementing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380992.9U CN208075337U (en) | 2018-03-21 | 2018-03-21 | A kind of polyamide 6 technique conduction oil oil-supplementing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208075337U true CN208075337U (en) | 2018-11-09 |
Family
ID=64047489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820380992.9U Expired - Fee Related CN208075337U (en) | 2018-03-21 | 2018-03-21 | A kind of polyamide 6 technique conduction oil oil-supplementing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208075337U (en) |
-
2018
- 2018-03-21 CN CN201820380992.9U patent/CN208075337U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181109 Termination date: 20200321 |