CN206458589U - Pump synchronous cooling device - Google Patents
Pump synchronous cooling device Download PDFInfo
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- CN206458589U CN206458589U CN201621199189.2U CN201621199189U CN206458589U CN 206458589 U CN206458589 U CN 206458589U CN 201621199189 U CN201621199189 U CN 201621199189U CN 206458589 U CN206458589 U CN 206458589U
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 title abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 97
- 238000000926 separation method Methods 0.000 claims abstract description 48
- 230000001105 regulatory effect Effects 0.000 claims abstract description 35
- 239000007791 liquid phase Substances 0.000 claims abstract description 32
- 230000008676 import Effects 0.000 claims description 74
- 238000011144 upstream manufacturing Methods 0.000 claims description 19
- 239000007792 gaseous phase Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a synchronous heat sink of machine pump. The utility model discloses synchronous heat sink of machine pump, include: the system comprises a low-temperature separation device, a first machine pump, a second machine pump, a first temperature detection meter, a second temperature detection meter, a flow meter and a regulating valve; a liquid phase outlet of the low-temperature separation device is respectively connected with an inlet of the first pump and an inlet of the second pump, and a communication pipeline is arranged between the inlet of the first pump and the inlet of the second pump; a pipeline connecting the inlet of the first machine pump and the liquid phase outlet of the low-temperature separation device is provided with a first temperature detection meter, and a pipeline connecting the inlet of the second machine pump and the liquid phase outlet of the low-temperature separation device is provided with a second temperature detection meter; and a flow control pipeline is arranged between the outlet of the first pump and the outlet of the second pump. The utility model provides a when operation pump trouble needs fast switch-over to reserve pump, because reserve pump rapid cooling, can appear the pump shaft brittle failure and arouse the problem of device shut down during the start-up.
Description
Technical field
The utility model is related to deep natural gas treatment technology, more particularly to a kind of synchronous heat sink of pump.
Background technology
In the production process of gas condensate field, component therein, such as ethane, liquefaction are reclaimed by way of reducing natural gas temperature
Oil gas (Liquefied Petroleum Gas, LPG) etc., to increase economic benefit.Natural gas can be because full in temperature-fall period
Liquid hydrocarbon is separated out with vapour pressure reduction, it is necessary to be handled again into downstream process device liquid hydrocarbon supercharging.
Pump uses the common pattern of the using and the reserved, and standby pump, which is imported and exported, during normal production closes, and the inside does not have low temperature
Media flow, standby pump is in normal temperature state.When running pump trip failure, it is necessary to quickly enable standby pump, specifically
The drain tap set by exporting carries out filling pump and the standby pump of fast precooling, to ensure normal production.
However, when quickly starting standby pump, it is necessary to consistent with the temperature of liquid hydrocarbon within a short period of time.During due to precooling
Between it is shorter, the temperature drop in standby pump is too fast, and the pump shaft of standby pump can not be quick due to the low temperature stress that cooling is produced
Release so that embrittlement occurs in pump shaft, and the normal operation of influence is with production, the phenomenon that device can be caused to stop production when serious.
Utility model content
The utility model provides a kind of pump synchronous heat sink, it is to avoid when operation pump breaks down, quickly start standby
Cause pre-coo time short with pump, temperature drop is too fast, prevent the low temperature stress that the pump shaft of standby pump is produced from quick release,
The liquid hydrocarbon in pump need to be vented by causing pump shaft embrittlement in turn result in device stopping production, and pump being filled during guest machine pump startup, can be caused
The problem of wasting of resources.
The utility model provides a kind of pump synchronous heat sink, including：Low temperature separation unit, the first pump, the second machine
Pump, the first temperature detection table, second temperature detection table, flowmeter, regulating valve；
The liquid-phase outlet of the low temperature separation unit respectively with the import of first pump and entering for second pump
Mouth connection, and it is provided with connecting pipeline between the import of first pump and the import of second pump；
It is provided with the pipeline that the import of first pump is connected with the liquid-phase outlet of the low temperature separation unit described
Set on first temperature detection table, the pipeline that the import of second pump is connected with the liquid-phase outlet of the low temperature separation unit
There is the second temperature detection table；
Flow control tube line, the flow are provided between the outlet and the outlet of second pump of first pump
The flowmeter and the regulating valve are provided with control pipeline；
Wherein, it is primary pump in first pump, when second pump is standby pump, if first temperature
Detection table is different from the medium temperature that the detection of the second temperature detection table is obtained, then it is described to control to adjust the regulating valve
The flow of medium on flow control tube line, until the first temperature detection table detects what is obtained with the second temperature detection table
Medium temperature is identical.
Alternatively, set on the pipeline that the first temperature detection table is connected with the liquid-phase outlet of the low temperature separation unit
Have and set on the first import stop valve, the pipeline that the second temperature detection table is connected with the liquid-phase outlet of the low temperature separation unit
It is equipped with the second import stop valve.
Alternatively, first outlet pipeline, described are provided between the outlet of first pump and the first upstream device
First outlet valve and the first block valve are provided with one outlet line, the first outlet valve is used to prevent medium from flowing backwards, described
First block valve is used to control flow.
Alternatively, second outlet pipeline, institute are provided between the outlet of second pump and first upstream device
State and second outlet valve and the second block valve be provided with second outlet pipeline, the second outlet valve is used to prevent medium from flowing backwards,
Second block valve is used to control flow.
Alternatively, the import of the low temperature separation unit is connected with upstream equipment, and the gas phase of the low temperature separation unit goes out
Mouth is connected with the second upstream device.
Alternatively, first pump uses VFC with second pump.
Alternatively, the quantity of second pump is at least one.
Alternatively, in addition to controller, the controller is examined with the first temperature detection table, the second temperature respectively
Table and flowmeter connection are surveyed, the controller is used to detect according to the first temperature detection table and the second temperature
The temperature gap that table detection is obtained generates the controlled quentity controlled variable of the regulating valve, until the first temperature detection table and the described second temperature
The medium temperature that degree detection table detection is obtained is identical.
The synchronous heat sink of pump that the utility model is provided, passes through the import in the first pump and the import of the second pump
Between connecting pipeline is set, set first on the pipeline that the import of the first pump is connected with the liquid-phase outlet of low temperature separation unit
Temperature detection table, sets second temperature to examine on the pipeline that the import of the second pump is connected with the liquid-phase outlet of low temperature separation unit
Table is surveyed, sets on flow control tube line, flow control tube line and sets between the outlet and the outlet of the second pump of the first pump
Flowmeter and regulating valve.It is primary pump in the first pump, when the second pump is standby pump, from the liquid phase of low temperature separation unit
Outlet flows into a small amount of medium to after the import of the first pump, flowing into the outlet of the first pump, flowmeter, tune after medium supercharging successively
Valve, the outlet of the second pump, the import of the second pump are saved, the import of the first pump is returned, so as to form circulation loop.Root again
The medium temperature measured according to the first temperature detection table and second temperature detection table adjusts the aperture of regulating valve, it is ensured that have few in backflow
The medium of amount is flowed in the second pump so that the medium temperature in the second pump is consistent with the medium temperature in the first pump, root
Adjust the aperture of regulating valve to control the control mode of rate-of flow according to temperature gap, its precision is higher, and precooling effect is more preferably.Together
When so that flowmeter keeps reducing the waste of resource to fixed value.The utility model pump synchronization heat sink realizes standby
Medium temperature in pump is consistent with the medium temperature in operation pump, and the pump shaft for solving pump is sent out because of low temperature stress
Raw embrittlement causes the problem of device stops production, the problem of it also avoid filling pump when pump starts and need to be vented liquid hydrocarbon, it is ensured that safety
Produce, do not cause the wasting of resources, and save the expense of operation.
Brief description of the drawings
The structural representation for the pump synchronization heat sink that Fig. 1 provides for the utility model；
Fig. 2 is the block diagram representation of controller.
Embodiment
The structural representation for the pump synchronization heat sink that Fig. 1 provides for the utility model, as shown in figure 1, the present embodiment
The synchronous heat sink of pump include：Low temperature separation unit 10, the first pump 20, the second pump 30, the first temperature detection table 21,
Second temperature detection table 31, flowmeter 41, regulating valve 42；The liquid-phase outlet C of low temperature separation unit 10 respectively with the first pump 20
Import 2A and the second pump 30 import 3A connections, and between the import 3A of the import 2A of the first pump 20 and the second pump 30
It is provided with connecting pipeline 100；Set on the pipeline that the import 2A of first pump 20 is connected with the liquid-phase outlet C of low temperature separation unit 10
It is equipped with the first temperature detection table 21, the pipeline that the import 3A of the second pump 30 is connected with the liquid-phase outlet C of low temperature separation unit 10
On be provided with second temperature detection table 31；Flow is provided between the outlet 2B of first pump 20 and the outlet 3B of the second pump 30
Control to be provided with flowmeter 41 and regulating valve 42 on pipeline 400, flow control tube line 400；Wherein, it is primary in the first pump 20
Pump, when the second pump 30 is standby pump, if what the detection of the first temperature detection table 21 and second temperature detection table 31 was obtained
Medium temperature is different, then regulating valve 42 is adjusted to control the flow of medium on flow control tube line 400, until the first temperature detection
Table 21 detects that obtained medium temperature is identical with second temperature detection table 31.
Specifically, in the synchronous heat sink of the pump, there is a primary pump and multiple standby pumps.First pump
20 and second pump 30 all realize the pressurization of medium.First pump 20 can be used as primary pump or standby pump, second
Pump 30 can also be used as primary pump or standby pump.For example, when the first pump 20 is primary pump, then the second pump 30
For standby pump, the second pump 30 can be multiple.When the second pump 30 is primary pump, then the first pump 20 is guest machine
Pump, the first pump 20 can be multiple.
Low temperature separation unit 10 isolates cryogenic media, and medium is generally liquid hydrocarbon, and temperature is less than normal temperature.Pass through cryogenic separation
Medium is passed through the import 2A of the first pump 20 and the import 3A of the second pump 30 by the liquid-phase outlet C of device 10.Cryogenic separation is filled
Put 10 and first and be provided with first switch valve between pump 20, by controlling the switch of first switch valve to control medium whether can
Into the first pump 20.Second switch valve is provided between the pump 30 of low temperature separation unit 10 and second, is opened by control second
Whether close the switch control medium of valve can enter the second pump 30.First switch valve and second switch valve are not arranged in communicating pipe
On line 100, connecting for the first pump 20 and the second pump 30 is not interfered with, and first switch valve and second switch valve can be controlled
The flow direction of medium.
In the present embodiment, in order to avoid standby pump fast cooling causes pump shaft to occur embrittlement and causes what is stopped production to ask
Medium temperature in topic, the present embodiment in standby pump is consistent with medium temperature in operation pump, so as to avoid standby
Pump needs fast cooling.Specifically, realized by the first pump 20 and the second pump 30 in same circulation loop, its
In, the first pump 20 is primary pump, and the second pump 30 is standby pump.
As shown in figure 1, the circulation loop includes successively：A small amount of medium is flowed into from the liquid-phase outlet C of low temperature separation unit 10
To the outlet 3B- of outlet the second pumps of 2B- flowmeter 41- regulating valves 42- 30 of the first pumps of import 2A- 20 of the first pump 20
The import 3A- of second pump 30 forms circulation loop to the import 2A of the first pump 20.
First temperature detection table 21, which can be not only detected from the liquid-phase outlet C of low temperature separation unit 10, flows into the first pump 20
Import 2A medium temperature, can control on pipeline 400 to flow into the first machine from the outlet 2B of the first pump 20 with detection flows
The import 2A of pump 20 medium temperature.Second temperature detection table 31 can not only detect the liquid-phase outlet from low temperature separation unit 10
C flows into the import 3A of the second pump 30 medium temperature, can be with going out from the second pump 30 on detection flows control pipeline 400
Mouth 3B flows into the import 3A of the second pump 30 medium temperature.
Flowmeter 41 and regulating valve 42 are provided with flow control tube line 400, flowmeter 41 can be measured from the first pump
20 outlet 2B is flowed into the outlet 3B of the second pump 30 rate-of flow, and regulating valve 42 can control going out from the first pump 20
Mouth 2B is flowed into the outlet 3B of the second pump 30 rate-of flow and velocity of medium.When the detection of flowmeter 41 is low by rate-of flow
When setting value, flow will be increased by the aperture of regulating valve 42, increase the rate-of flow of backflow, improve precooling effect, directly
When detecting that the medium temperature that table 31 is detected shows consistent with second temperature to the first temperature detection table 21, flow control valve 42 is controlled
Aperture to fixed value.When flowmeter 41, which is detected, is higher than setting value by the flow of medium, logic control relation will be passed through
Reduce the aperture of flow control valve 42, make largely to flow to the first upstream device 60 by the medium after the first pump 20, it is to avoid
Medium back flow amount is excessive and does interior circulation between the first pump 20 and the second pump 30, causes the first pump 20 to do more nothing
Hard, the operational efficiency of the first pump 20 is influenceed, while increasing energy consumption and cost.
In the present embodiment, the operation principle of primary pump and standby pump for convenience of description, is made with the first pump 20
For primary pump, the second pump 30 is illustrated as exemplified by standby pump.Pump synchronization heat sink is implemented
Process is：
First, low temperature separation unit 10 isolates cryogenic media, opens first switch valve, closes second switch valve, medium
Enter the first pump 20 from the liquid-phase outlet C of low temperature separation unit 10, the second pump 30 is not entered.First temperature detection table 21 is examined
Survey the medium temperature into the import 2A of the first pump 20.
Secondly, medium flows out from the outlet 2B of the first pump 20, due to the outlet 2B and the second pump 30 of the first pump 20
Outlet 3B between be provided with flow control tube line 400, slightly open regulating valve 42, due to the fluid pressure in the first pump 20
Greatly, and in the second pump 30 pressure is small, and a small amount of medium is flowed into by the outlet 2B of flow control tube line 400 from the first pump 20
The outlet 3B of second pump 30.When the detection of flowmeter 41 is less than setting value by rate-of flow, regulating valve 42 will be passed through
Aperture increases flow, increases the rate-of flow of backflow, improves precooling effect.When the detection of flowmeter 41 is higher than by the flow of medium
During setting value, the aperture of flow control valve 42 will be reduced by logic control relation, the waste of resource can be avoided.
Again, a small amount of medium is flowed out from the import 3A of the second pump 30, and second temperature detection table 31 is detected from the second pump
The medium temperature of 30 import 3A outflows.Due to being connected between the import 3A and the import 2A of the first pump 20 of the second pump 30
Pipeline 100, a small amount of medium is just back to the import 2A of the first pump 20 from the import 3A of the second pump 30, forms circulation loop.
Then, the medium temperature that the first temperature detection table 21 is detected with second temperature detection table 31 is compared.If the first temperature
Detection table 21 is different from the medium temperature that the detection of second temperature detection table 31 is obtained, then adjusts the aperture of regulating valve 42 to control
The flow of medium on flow control tube line 400.
Under normal circumstances, because the second pump 30 is in normal temperature state, flow into the first pump 20 and the second pump 30
Medium temperature can be less than normal temperature.A small amount of medium is flowed into the second pump 30 and carried out after heat exchange, and the temperature in the second pump 30 is just
Can somewhat it decline, second temperature detection table 31 detects that obtained medium temperature can be obtained higher than the detection of the first temperature detection table 21
Medium temperature.Now, the difference of the medium temperature obtained according to second temperature detection table 31 and the detection of the first temperature detection table 21
To adjust the aperture of regulating valve 42, the flow of medium is controlled so that be flowed into the second pump 30 from the import 2A of the first pump 20
Import 3A rate-of flow increase, increased a small amount of medium proceeds heat exchange, the second pump in the second pump 30 again
Temperature in 30 will continue to reduction, while needing to pass through the medium on flow control tube line 400 after ensureing regulation regulating valve 42
Flow if rate-of flow exceedes setting value, can cause capacity of returns excessive no more than setting value, and the first pump 20 flogs a dead horse increasing
Plus, and then increase energy consumption.
Obtained temperature gap, re-adjustments regulation are detected according to the first temperature detection table 21 and second temperature detection table 31
The process of the aperture of valve 42, until second temperature detects Jie that the medium temperature that table 31 is detected is detected with the first temperature detection table 21
Matter temperature is identical, the medium temperature in the second pump 30 is consistent with medium temperature in the first pump 20.
When the first pump 20 breaks down, quickly enabling the second pump 30 would not occur because low temperature stress can not be released
Put so that the problem of embrittlement occurs in pump shaft, the normal operation of influence and production process.Meanwhile, the aperture of regulating valve 42 is automatically adjusted,
Rate-of flow on control flow control tube line 400 is kept to fixed value, it is ensured that is had media flow always in the second pump 30, is opened
It is not required to fill pump again during dynamic second pump 30, it is to avoid resource emptying is wasted.
The synchronous heat sink of pump that the present embodiment is provided, by the import in the first pump and the import of the second pump it
Between connecting pipeline is set, on the pipeline that the import of the first pump is connected with the liquid-phase outlet of low temperature separation unit set first temperature
Degree detection table, sets second temperature to detect on the pipeline that the import of the second pump is connected with the liquid-phase outlet of low temperature separation unit
Table, sets between the outlet and the outlet of the second pump of the first pump and stream is set on flow control tube line, flow control tube line
Gauge and regulating valve.It is primary pump in the first pump, when the second pump is standby pump, goes out from the liquid phase of low temperature separation unit
A small amount of medium mouthful is flowed into after the import of the first pump, outlet, flowmeter, the regulation of the first pump is flowed into after medium supercharging successively
Valve, the outlet of the second pump, the import of the second pump, return the import of the first pump, so as to form circulation loop.Further according to
The medium temperature that first temperature detection table and second temperature detection table are measured adjusts the aperture of regulating valve, it is ensured that have a small amount of in backflow
Medium flow in the second pump so that the medium temperature in the second pump is consistent with the medium temperature in the first pump, according to
Temperature gap adjusts the aperture of regulating valve to control the control mode of rate-of flow, and its precision is higher, and precooling effect is more preferably.Together
When so that flowmeter keeps reducing the waste of resource to fixed value.The present embodiment pump synchronization heat sink realizes guest machine
Medium temperature in pump is consistent with the medium temperature in operation pump, and the pump shaft for solving pump occurs because of low temperature stress
Embrittlement causes the problem of device stops production, and it also avoid filling pump when pump starts and the problem of need to be vented liquid hydrocarbon, it is ensured that safety is raw
Produce, do not cause the wasting of resources, and save the expense of operation.
Explanation is explained in detail to the concrete structure of pump synchronization heat sink in the present embodiment below.
Alternatively, it is provided with the pipeline that the first temperature detection table 21 is connected with the liquid-phase outlet C of low temperature separation unit 10
Set on first import stop valve 22, the pipeline that second temperature detection table 31 is connected with the liquid-phase outlet C of low temperature separation unit 10
There is the second import stop valve 32.
Specifically, the first import stop valve 22 and the second import stop valve 32 are arranged on connecting pipeline 100, the first import
Whether the liquid-phase outlet C of the control low temperature separation unit 10 of stop valve 22 medium can flow into the first pump 20, and the second import is cut
Whether the liquid-phase outlet C of the disconnected control of valve 32 low temperature separation unit 10 medium can flow into the second pump 30, meanwhile, the first import
Stop valve 22 can also control whether the first pump 20 connects with the second pump 30 with the second import stop valve 32.When selecting first
Pump 20 is primary pump, when the second pump 30 is standby pump, in normal production, and the first import stop valve 22, which is in, to be opened
State, the second import stop valve 32 is closed.Likewise, being primary pump, the first pump when selecting the second pump 30
20 when being standby pump, and in normal production, the second import stop valve 32 is in open mode, and the first import stop valve 22 is in
Closed mode.
Alternatively, the first pump 20 and the second pump 30 use VFC.
Specifically, the first pump 20 and the second pump 30 can not only control the first pump 20 and second using VFC
The flow and flow velocity of medium in pump 30, additionally it is possible to prevent the gas in low temperature separation unit 10 from entering the first pump 20 and second
In pump 30 cause danger, it is to avoid potential safety hazard.
Alternatively, first outlet pipeline 200 is provided between the outlet 2B of the first pump 20 and the first upstream device 60, the
The block valve 24 of first outlet valve 23 and first is provided with one outlet line 200, first outlet valve 23 is used to prevent medium from flowing backwards,
First block valve 24 is used to control flow.
Specifically, first outlet valve 23 selects check valve, and in normal production, medium enters before the first pump 20, the
One pump 20 needs to fill pump, and pump is vented the first pump 20 medium after filling restarts the first pump 20, and medium enters the first machine
Pressure rise after pump 20, after first outlet pipeline 200, pressure medium is increased to first outlet valve 23 after certain value just can be certainly
It is dynamic to open, then the first block valve 24 of slow opening, by adjusting the aperture of the first block valve 24, control the flow and stream of medium
Speed so that the first pump 20 is in steady operational status, last medium enters the first upstream device 60.Occur in the first pump 20
During failure, the first block valve 24 is closed, being flowed into the medium of the first pump 20 can not be pressurizeed, and first outlet valve 23 will be returned automatically
Seat, is closed.
Alternatively, second outlet pipeline 300, second are provided between the outlet of the second pump 30 and the first upstream device 60
The block valve 34 of second outlet valve 33 and second is provided with outlet line 300, second outlet valve 33 is used to prevent medium from flowing backwards, the
Two block valves 34 are used to control flow.
Specifically, second outlet valve 33 selects check valve, and in normal production, medium enters before the second pump 30, the
Two pumps 30 need to fill pump, and pump is vented the second pump 30 medium after filling restarts the second pump 30, and medium enters the second machine
Pressure rise after pump 30, after second outlet pipeline 300, pressure medium is increased to second outlet valve 33 after certain value just can be certainly
It is dynamic to open, then the second block valve 34 of slow opening, by adjusting the aperture of the second block valve 34, control the flow and stream of medium
Speed so that the second pump 30 is in steady operational status, last medium enters the first upstream device 60.Occur in the second pump 30
During failure, the second block valve 34 is closed, being flowed into the medium of the second pump 30 can not pressurize so that second outlet valve 33 will be certainly
Seat is moved back, is closed.
Next, the detailed process broken down with a specific embodiment to pump normal operation and pump is carried out in detail
It is thin to illustrate.
When the first pump 20 of selection is primary pump, and the second pump 30 is standby pump, in normal productive process, the
One import stop valve 22 is opened, and the first block valve 24 is closed, and the second import stop valve 32 is closed, and the second block valve 34 is closed, and is adjusted
Section valve 42 is closed, and medium enters the first pump 20, and the pressure of medium can be raised after the first pump 20 starts, until the after certain value
One outlet valve 23 can be automatically opened up, then adjust the aperture of the first block valve 24, slow to open the first block valve 24 so that the first machine
Pump 20 is in steady operational status, and medium just flows into the first upstream device 60, the first upstream device 60 medium is carried out it is outer it is defeated, return
The operation such as stream.Simultaneously as being provided with flow control tube between the outlet 2B of the first pump 20 and the outlet 3B of the second pump 30
Line 400, opens regulating valve 42 slightly, and medium can flow into the outlet 3B of the second pump 30, and because medium only has on a small quantity, and second
Block valve 34 is closed, and second outlet valve 33 will not be automatically opened up, due to the import 2A of the first pump 20 and entering for the second pump 30
Connecting pipeline 100 is provided between mouth 3A, medium will flow to the import 2A of the first pump 20 from the import 3A of the second pump 30,
Form circulation loop.When the temperature for detecting the detection of the first temperature detection table 21 is higher than the temperature detected with second temperature detection table 31
When spending, the aperture of regulating valve 42 is adjusted so that the flow of medium increases in backflow, but the numerical value of flowmeter 41 can not be caused to exceed
Setting value.Obtained temperature gap, re-adjustments regulation are detected according to the first temperature detection table 21 and second temperature detection table 31
The process of the aperture of valve 42, until the first temperature detection table 21 detects that the temperature that table 31 is detected is consistent with second temperature, the second machine
Temperature in pump 30 is consistent with medium temperature, and the aperture of adjustment regulating valve 42 causes the numerical value of flowmeter 41 to remain fixed value,
Ensure there is media flow in the second pump 30 always, and not waste of resource.
When the first pump 20 breaks down, the first import stop valve 22 and the first block valve 24 are closed, regulating valve is closed
42, while opening second switch valve and the second block valve 34.Start the second pump 30 as primary pump and carry out production run, fortune
Row process is consistent for the process of main pump with the first pump 20.Meanwhile, the first pump 20 is repaired, treats that the first pump 20 is repaired
Afterwards, the first pump 20 is run in whole production process as standby pump 30, and step is as the second pump 30 is as standby
The process of pump.Further, the quantity of the second pump 30 is at least one.
Specifically, when the first pump 20 breaks down, another the second pump 30 can also be participated in as standby pump
Whole production process.Corresponding, the liquid-phase outlet C of low temperature separation unit 10 is flowed to onto the pipeline of pump can be from switch control
Valve processed can control whether many pumps participate in the operation of the synchronous heat sink of the pump, so that avoiding device breaks down
The problem of causing to stop production.Wherein, in the synchronous heat sink of the pump depending on the particular number foundation actual conditions of pump.
Alternatively, the import A of low temperature separation unit 10 is connected with upstream equipment 50, the gaseous phase outlet of low temperature separation unit 10
D is connected with the second upstream device 70.
Specifically, the gas that low temperature separation unit 10 is flowed into upstream equipment 50 is separated, can isolate gas from
Gaseous phase outlet D flows out, and flows in the second upstream device 70, gas is recycled, applied in production, realize resource
Reasonable utilization.
Fig. 2 is the block diagram representation of controller 80, with reference to Fig. 1 and Fig. 2, on the basis of above-described embodiment, the present embodiment
The synchronous heat sink of middle pump also includes controller 80, and controller 80 is detected with the first temperature detection table 21, second temperature respectively
Table 31 and flowmeter 41 are connected, and controller 80 is used to be detected with second temperature detection table 31 according to the first temperature detection table 21
The temperature gap arrived generates the controlled quentity controlled variable of regulating valve 42, until the first temperature detection table 21 is detected with second temperature detection table 31
The medium temperature arrived is identical.
Specifically, in the synchronous heat sink of the pump, the medium temperature that the first temperature detection table 21 is detected, second temperature
The medium temperature that detection table 31 is detected can all be sent in controller 80 and be compared processing, obtain being generated according to temperature gap and adjust
The controlled quentity controlled variable of valve 42 is saved, while the rate-of flow detection of flowmeter 41 can be also sent in controller 80.When the first temperature detection table
21 it is different from the medium temperature that second temperature detection table 31 is detected when, control to adjust valve 42 aperture.When flowmeter 41 is detected
When being less than setting value by rate-of flow, flow will be increased by the aperture of regulating valve 42, increase the rate-of flow of backflow, carry
High precooling effect.When flowmeter 41, which is detected, is higher than setting value by the flow of medium, it will be reduced by logic control relation
The aperture of flow control valve 42, can avoid the waste of resource.Until the medium temperature that detects of the first temperature detection table 21 with
When the medium temperature that second temperature detection table 31 is detected is identical, the aperture of adjustment regulating valve 42 causes flowmeter 41 to be fixation
Value, so both ensure that the medium temperature in the second pump 30 was consistent with medium temperature in the first pump 20, money is not resulted in again
The waste in source.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (8)
1. a kind of synchronous heat sink of pump, it is characterised in that including：Low temperature separation unit, the first pump, the second pump,
One temperature detection table, second temperature detection table, flowmeter, regulating valve；
The liquid-phase outlet of the low temperature separation unit connects with the import of first pump and the import of second pump respectively
Connect, and connecting pipeline is provided between the import of first pump and the import of second pump；
Described first is provided with the pipeline that the import of first pump is connected with the liquid-phase outlet of the low temperature separation unit
Set on temperature detection table, the pipeline that the import of second pump is connected with the liquid-phase outlet of the low temperature separation unit
State second temperature detection table；
Flow control tube line, the flow control are provided between the outlet and the outlet of second pump of first pump
The flowmeter and the regulating valve are provided with pipeline；
Wherein, it is primary pump in first pump, when second pump is standby pump, if first temperature detection
Table is different from the medium temperature that the detection of the second temperature detection table is obtained, then adjusts the regulating valve to control the flow
The flow of medium on pipeline is controlled, until the first temperature detection table detects obtained medium with the second temperature detection table
Temperature is identical.
2. device according to claim 1, it is characterised in that the first temperature detection table and the low temperature separation unit
The connected pipeline of liquid-phase outlet on be provided with the first import stop valve, the second temperature detection table is filled with the cryogenic separation
The second import stop valve is provided with the pipeline that the liquid-phase outlet put is connected.
3. device according to claim 1, it is characterised in that between the outlet of first pump and the first upstream device
It is provided with first outlet pipeline, the first outlet pipeline and is provided with first outlet valve and the first block valve, described first goes out
Mouth valve is used to prevent medium from flowing backwards, and first block valve is used to control flow.
4. device according to claim 3, it is characterised in that the outlet of second pump and first upstream device
Between be provided with second outlet pipeline, the second outlet pipeline and be provided with second outlet valve and the second block valve, described
Two outlet valves are used to prevent medium from flowing backwards, and second block valve is used to control flow.
5. device according to claim 1, it is characterised in that the import of the low temperature separation unit connects with upstream equipment
Connect, the gaseous phase outlet of the low temperature separation unit is connected with the second upstream device.
6. device according to claim 1, it is characterised in that first pump uses frequency conversion control with second pump
System.
7. device according to claim 1, it is characterised in that the quantity of second pump is at least one.
8. the device according to any one of claim 1 to 7, it is characterised in that also including controller, the controller difference
It is connected with the first temperature detection table, second temperature detection table and the flowmeter, the controller is used for basis
The first temperature detection table detects that obtained temperature gap generates the control of the regulating valve with the second temperature detection table
Amount, until the first temperature detection table detects that obtained medium temperature is identical with the second temperature detection table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199189.2U CN206458589U (en) | 2016-11-07 | 2016-11-07 | Pump synchronous cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199189.2U CN206458589U (en) | 2016-11-07 | 2016-11-07 | Pump synchronous cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458589U true CN206458589U (en) | 2017-09-01 |
Family
ID=59692238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621199189.2U Active CN206458589U (en) | 2016-11-07 | 2016-11-07 | Pump synchronous cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081313A (en) * | 2019-03-12 | 2019-08-02 | 合肥通用机械研究院有限公司 | A kind of compensation system and control method preventing process pump and failing for pump startup |
| CN113419416A (en) * | 2021-07-07 | 2021-09-21 | 中国石油天然气股份有限公司 | Redundant rotating equipment control system and method |
-
2016
- 2016-11-07 CN CN201621199189.2U patent/CN206458589U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081313A (en) * | 2019-03-12 | 2019-08-02 | 合肥通用机械研究院有限公司 | A kind of compensation system and control method preventing process pump and failing for pump startup |
| CN110081313B (en) * | 2019-03-12 | 2020-09-01 | 合肥通用机械研究院有限公司 | Compensation system for preventing failure of starting of backup pump of process pump and control method |
| CN113419416A (en) * | 2021-07-07 | 2021-09-21 | 中国石油天然气股份有限公司 | Redundant rotating equipment control system and method |
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