CN106914463B - Drip irrigation system of high-pressure solid-containing instrument - Google Patents
Drip irrigation system of high-pressure solid-containing instrument Download PDFInfo
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- CN106914463B CN106914463B CN201710301379.3A CN201710301379A CN106914463B CN 106914463 B CN106914463 B CN 106914463B CN 201710301379 A CN201710301379 A CN 201710301379A CN 106914463 B CN106914463 B CN 106914463B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0325—Control mechanisms therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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Abstract
The invention provides a drip irrigation system of a high-pressure solid-containing instrument, which comprises: the flushing oil tank, the pressure charging control valve, the pressure relief control valve, the oil inlet control valve and the tank bottom cut-off valve; the flushing oil tank is connected with the high-pressure instrument through an oil discharge pipeline arranged at the bottom of the flushing oil tank; the pressurizing control valve is arranged on a pressurizing pipeline at the top of the flushing oil tank; the pressure relief control valve is arranged on a pressure relief pipeline at the top of the flushing oil tank; the oil inlet control valve is arranged on an oil inlet pipeline on a tank body of the flushing oil tank; the tank bottom cut-off valve is arranged on the oil discharge pipeline; injecting flushing oil into the flushing oil tank through the oil inlet control valve; injecting high-pressure hydrogen into the flushing oil tank through a pressure control valve so that the pressure in the flushing oil tank reaches a preset pressure; the flushing oil is pressed to a high-pressure instrument by using pressure through a tank bottom cut-off valve; and discharging the high-pressure hydrogen through a pressure relief control valve, so that the pressure of the flushing oil tank is relieved to normal pressure. Because the whole system does not have rotating equipment, the failure rate of the equipment is greatly reduced, and the running reliability of the equipment is improved.
Description
Technical Field
The invention relates to the technical field of suspension bed hydrogenation, fluidized bed hydrogenation and residual oil hydrogenation, in particular to a drip irrigation system of a high-pressure solid-containing instrument.
Background
The suspension bed hydrogenation, boiling bed hydrogenation, residual oil hydrogenation and other technological processes are used in processing various inferior residual oil or heavy oil, and are aimed at producing light distillate oil, such as gasoline, diesel oil, etc., or at desulfurizing, denitriding, demetallizing, etc. inferior heavy oil to modify it into raw material capable of further processing and utilizing. Because the medium of the device contains a certain amount of solid, the device is easy to cause the blockage of meters such as a flowmeter, a liquid level meter and the like, and the measurement precision of the device is influenced, and a flushing oil system is required to be arranged on the meter containing the solid medium. At present, an imported high-pressure meter drip irrigation station is commonly adopted in a high-pressure meter flushing system, and the principle is that a plurality of high-pressure and low-flow plunger pumps (the plunger pumps are an important device of a hydraulic system and realize oil absorption and pressure oil by means of the volume change of a sealed working cavity through the reciprocating motion of plungers in a cylinder body) are utilized to carry out fixed-point and quantitative flushing on each meter, namely, one meter needs to be provided with one small plunger pump which is driven by one motor. However, because the pressure and the flow rate of each plunger pump are very high and small, each plunger pump often fails, and the normal use of the drip irrigation system with the meter is affected.
Disclosure of Invention
The embodiment of the invention provides a drip irrigation system of a high-pressure solid-containing instrument, wherein no rotating equipment is arranged in the whole system, so that the failure rate of the equipment is greatly reduced, and the running reliability of the equipment is improved. This drip irrigation system of solid instrument is contained to high pressure includes:
the flushing oil tank, the pressure charging control valve, the pressure relief control valve, the oil inlet control valve and the tank bottom cut-off valve;
the flushing oil tank is connected with the high-pressure instrument through an oil discharge pipeline arranged at the bottom of the flushing oil tank; the pressurizing control valve is arranged on a pressurizing pipeline at the top of the flushing oil tank; the pressure relief control valve is arranged on a pressure relief pipeline at the top of the flushing oil tank; the oil inlet control valve is arranged on an oil inlet pipeline on a tank body of the flushing oil tank; the tank bottom cut-off valve is arranged on the oil discharge pipeline;
injecting flushing oil into the flushing oil tank after the flushing oil tank is depressurized to normal pressure through the oil inlet control valve;
injecting high-pressure hydrogen into the flushing oil tank through the pressurization control valve so that the pressure in the flushing oil tank reaches a preset pressure;
pressing the flushing oil in the flushing oil tank to a high pressure meter by the pressure through the tank bottom shut-off valve;
discharging high-pressure hydrogen from the flushing oil tank through the pressure relief control valve to enable the flushing oil tank to be depressurized to normal pressure;
further comprising:
the control device is used for automatically controlling the opening and closing states and the opening degree of the pressure charging control valve and the pressure discharging control valve according to the change condition of the pressure in the flushing oil tank; the opening and closing states and the opening degrees of the oil inlet control valve and the tank bottom cut-off valve are automatically controlled according to the change condition of the liquid level of the flushing oil in the flushing oil tank;
the high-pressure hand valve and the auxiliary line valve are respectively arranged in front of and behind the charging control valve, the pressure relief control valve and/or the oil inlet control valve to form an adjusting valve group;
hand valves and sight glasses; the hand valve is arranged on a pipeline between the flushing oil tank and the high-pressure instrument; the sight glass is arranged on a pipeline between the flushing oil tank and the high-pressure instrument and is positioned between the hand valve and the high-pressure instrument;
the hand valve is used for: controlling a flow of flushing oil from the flushing oil tank to a high pressure gauge;
the sight glass is used for: observing the flow rate of the flushing oil from the flushing oil tank to the high-pressure instrument, thereby adjusting the opening degree of the hand valve;
further comprising:
and the hydrogenation device is used for injecting high-pressure hydrogen into the flushing oil tank from the outlet of the fresh hydrogen compressor by utilizing a high-pressure hydrogen pipe network in the fresh hydrogen compressor.
In one embodiment, the hand valve is a high pressure needle type valve; the sight glass is a high-pressure sight glass.
In one embodiment, the flow of flushing oil from the flushing tank to the high pressure gauge is 30-60 drops/min.
In one embodiment, the charge control valve and the discharge control valve are high differential pressure instrument control valves; the tank bottom cut-off valve is a high-pressure cut-off valve; the oil inlet control valve is a high-pressure instrument regulating valve.
In one embodiment, a pressure detection device is arranged on the flushing oil tank and used for detecting the pressure value of the flushing oil tank after high-pressure hydrogen is injected or discharged;
and the flushing oil tank is provided with a liquid level detection device for detecting the liquid level value of the flushing oil filled or discharged from the flushing oil tank.
In one embodiment, a high-pressure oil inlet control valve is arranged on the flushing oil tank and is closed in an interlocking mode, and the high-pressure hydrogen in the flushing oil tank is prevented from being communicated with a flushing oil replenishing pipeline;
and the flushing oil tank is provided with a liquid level low tank bottom cut-off valve which is closed in an interlocking manner and is used for preventing high-pressure hydrogen in the flushing oil tank from being communicated with the high-pressure instrument.
In one embodiment, the flush oil tank includes: the system comprises a first flushing oil tank, a first pressure charging control valve, a first pressure discharging control valve, a first oil inlet control valve, a first tank bottom cut-off valve, a second flushing oil tank, a second pressure charging control valve, a second pressure discharging control valve, a second oil inlet control valve and a second tank bottom cut-off valve;
the first pressure control valve is arranged on a pressure pipeline at the top of the first flushing oil tank; the first pressure relief control valve is arranged on a pressure relief pipeline at the top of the first flushing oil tank; the first oil inlet control valve is arranged on an oil inlet pipeline on a tank body of the first flushing oil tank; a first tank bottom cut-off valve is arranged on the oil discharge pipeline;
the second pressurizing control valve is arranged on a pressurizing pipeline at the top of the second flushing oil tank; the second pressure relief control valve is arranged on a pressure relief pipeline at the top of the second flushing oil tank; the second oil inlet control valve is arranged on an oil inlet pipeline on a tank body of the second flushing oil tank; a second tank bottom cut-off valve is arranged on the oil discharge pipeline;
one flushing oil tank is in a normal use state, and the other flushing oil tank is in a pressure relief, oil charging, pressure charging and standby state;
when the liquid level of the flushing oil in the first flushing oil tank is reduced to a preset low liquid level, the first tank bottom cut-off valve is closed, the second tank bottom cut-off valve is opened, the second flushing oil tank is switched to the second flushing oil tank, the second flushing oil tank is in a normal use state, the first flushing oil tank is decompressed to a normal pressure state through the first pressure relief control valve, the flushing oil is injected into the first flushing oil tank through the first oil inlet control valve, the first oil inlet control valve is closed to stop oil filling when the preset high liquid level is reached, and high-pressure hydrogen is injected into the first flushing oil tank through the first pressure relief control valve, so that the pressure in the first flushing oil tank reaches a preset pressure, the first flushing oil tank is in a standby state and waits for the next round of use.
In an embodiment of the invention, the system comprises: the flushing oil tank, the pressure charging control valve, the pressure relief control valve, the oil inlet control valve and the tank bottom cut-off valve; wherein, the flushing oil tank is connected with the high-pressure instrument through an oil discharge pipeline arranged at the bottom of the flushing oil tank; the pressurizing control valve is arranged on a pressurizing pipeline at the top of the flushing oil tank; the pressure relief control valve is arranged on a pressure relief pipeline at the top of the flushing oil tank; the oil inlet control valve is arranged on an oil inlet pipeline on a tank body of the flushing oil tank; the tank bottom cut-off valve is arranged on the oil discharge pipeline; injecting the flushing oil into the flushing oil tank after the flushing oil tank is depressurized to normal pressure through an oil inlet control valve; injecting high-pressure hydrogen into the flushing oil tank through a pressure control valve so that the pressure in the flushing oil tank reaches a preset pressure; the flushing oil in the flushing oil tank is pressed to a high-pressure instrument by the pressure through a tank bottom cut-off valve; and discharging the high-pressure hydrogen from the flushing oil tank through a pressure relief control valve, so that the pressure of the flushing oil tank is relieved to normal pressure. Compared with the existing imported high-pressure meter drip irrigation station, the whole system of the invention has no rotating equipment, thereby greatly reducing the failure rate of the equipment and improving the operation reliability of the equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a first structural diagram of a drip irrigation system of a high-pressure solid content meter according to an embodiment of the present invention;
fig. 2 is a structural schematic diagram of a drip irrigation system of a high-pressure solid-containing meter according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In an embodiment of the present invention, there is provided a drip irrigation system of a high-pressure solid content meter, fig. 1 is a schematic structural diagram of the system, and as shown in fig. 1, the drip irrigation system of the high-pressure solid content meter includes: a flushing oil tank A (the pressure in the flushing oil tank A is changed periodically), a pressure charging control valve V1, a pressure discharging control valve V2, an oil inlet control valve V5 and a tank bottom cut-off valve V6; the number of each part is 1.
Wherein, the flushing oil tank A is connected with a high-pressure instrument through an oil discharge pipeline arranged at the bottom of the flushing oil tank A; the pressurizing control valve V1 is arranged on a pressurizing pipeline at the top of the flushing oil tank A; the pressure relief control valve V2 is arranged on a pressure relief pipeline at the top of the flushing oil tank A; the oil inlet control valve V5 is arranged on an oil inlet pipeline on the tank body of the flushing oil tank A; the tank bottom cut-off valve V6 is arranged on the oil discharge pipeline.
When the flushing oil tank A is in a standby state, opening an oil inlet control valve V5, injecting instrument flushing oil (flushing oil) into the flushing oil tank A after the flushing oil tank is depressurized to normal pressure, and closing the oil inlet control valve V5 to stop oil filling when a preset high liquid level is reached; opening a charging control valve V1, injecting high-pressure hydrogen into a flushing oil tank A from an outlet of a fresh hydrogen compressor by using a high-pressure hydrogen pipe network in an external hydrogenation device (fresh hydrogen compressor), and closing the charging control valve V1 when the pressure in the flushing oil tank A reaches a preset pressure (namely the flushing oil tank A is in a high-pressure state); opening the tank bottom cut-off valve V6, pressing the flushing oil to high-pressure instruments (the number of the high-pressure instruments can be one or more, as shown in figure 1) by using the pressure in the flushing oil tank A, and closing the tank bottom cut-off valve V6 after the liquid level in the flushing oil tank A is reduced to a low liquid level; and opening the pressure relief control valve V2, discharging the high-pressure hydrogen from the flushing oil tank to a torch pipe network or a fuel gas pipe network, and closing the pressure relief control valve V2 when the pressure of the flushing oil tank is reduced to normal pressure. And then the flushing oil tank A is subjected to oil filling, pressurizing and other work again to wait for the next round of use.
The flushing oil tank of the invention belongs to a high-pressure fatigue container with pressure changing circularly, a gas phase space at the top is connected with a high-pressure hydrogen pipeline and a torch pressure relief pipeline in a device through a control valve, the flushing oil tank is pressurized by high-pressure hydrogen and then put into use, external flushing oil is filled into the tank after the torch is relieved, and the flushing oil tank is pressurized for standby use after being filled with the flushing oil. The high pressure hydrogen and torch system utilizes the original facilities of the hydrogenation device, and the system only needs to be added with corresponding pipelines and valve banks. Therefore, the system does not need to rotate equipment, greatly reduces the failure rate of the equipment and improves the running reliability of the equipment.
In specific implementation, the drip irrigation system of the high-pressure solid-containing meter may further include: and the hand valve V9 is arranged on a pipeline between the flushing oil tank A and the high-pressure instrument. Wherein the hand valve V9 is used for: the flow rate of the flushing oil from the flushing oil tank pressure to the high pressure gauge a is controlled. Specifically, all be equipped with two at least hand valves on the washing pipeline from washing oil tank A to every high-pressure instrument, because the volume of washing oil is very little, and the pressure differential of washing oil tank to high-pressure instrument is also too big, controls the volume of washing oil through the aperture of adjusting two hand valves. The hand valve V9 is a high-pressure needle valve or other manual high-pressure valves with certain adjusting functions.
In specific implementation, the drip irrigation system of the high-pressure solid-containing meter may further include: and a sight glass SJ installed on a pipe between the wash oil tank A and the high-pressure meter (without a hand valve V9), the sight glass SJ being used for: the flow rate of the flushing oil (i.e., the speed at which oil droplets drip) from the flushing oil tank a pressurized to the high-pressure gauge was observed. Or, sight glass SJ is installed between hand valve V9 and the high-pressure instrument, and sight glass SJ is used for: the flow rate of the flushing oil pressurized from the flushing oil tank a to the high-pressure gauge is observed, and the opening degree of the hand valve V9 is adjusted. Wherein, sight glass SJ is the high-pressure sight glass that can bear the highest design pressure of hydrogenation unit. The normal oil drop dropping speed is 30-60 drops/min.
In specific implementation, fig. 2 is a schematic structural diagram of a drip irrigation system of a high-pressure solid-containing instrument according to an embodiment of the present invention, in the embodiment, the drip irrigation system of the high-pressure solid-containing instrument includes two flushing oil tanks a and B, two pressure charging control valves V1 and V3, two pressure discharging control valves V2 and V4, two oil inlet control valves V5 and V7, and two tank bottom cut-off valves V6 and V8;
the first pressure charging control valve V1 is arranged on a pressure charging pipeline at the top of the first flushing oil tank A; the first pressure relief control valve V2 is arranged on a pressure relief pipeline at the top of the first flushing oil tank A; the first oil inlet control valve V5 is arranged on an oil inlet pipeline on the tank body of the first flushing oil tank A; a first tank bottom cut-off valve V6 is arranged on the oil discharge pipeline;
the second pressure control valve V3 is arranged on a pressure pipeline at the top of the second flushing oil tank B; the second pressure relief control valve V4 is arranged on a pressure relief pipeline at the top of the second flushing oil tank B; the second oil inlet control valve V7 is arranged on an oil inlet pipeline on the tank body of the second flushing oil tank B; a second tank bottom cut-off valve V8 is arranged on the oil discharge pipeline;
wherein, one flushing oil tank (A or B) is in a normal use state, and the other flushing oil tank (B or A) is in a pressure relief, oil filling, pressure charging and standby state;
when the liquid level of the flushing oil in the first flushing oil tank A is reduced to a preset low liquid level, the first tank bottom stop valve V6 is closed, the second tank bottom stop valve V8 is opened, switching is performed to the second flushing oil tank B, the second flushing oil tank B is in a normal use state, the first flushing oil tank A is decompressed to a normal pressure state by controlling the first pressure relief control valve V2, the flushing oil is injected into the first flushing oil tank A through the first oil inlet control valve V5, the first oil inlet control valve V5 is closed to stop oil filling when the preset high liquid level is reached, and high-pressure hydrogen is injected into the first flushing oil tank A through the first pressure filling control valve V1, so that the pressure in the first flushing oil tank A reaches a preset pressure, and the first flushing oil tank A is in a standby state to wait for the next use.
When the liquid level of the flushing oil in the second flushing oil tank B is reduced to a preset low liquid level, the second tank bottom stop valve V8 is closed, the first tank bottom stop valve V6 is opened, the first flushing oil tank A is switched to the first flushing oil tank A, the first flushing oil tank A is in a normal use state, the second flushing oil tank B is decompressed to a normal pressure state by controlling the second pressure relief control valve V4, the flushing oil is injected into the second flushing oil tank B through the second oil inlet control valve V7, the second oil inlet control valve V7 is closed to stop oil filling when the preset high liquid level is reached, and high-pressure hydrogen is injected into the second flushing oil tank B through the second oil filling control valve V3, so that the pressure in the second flushing oil tank A reaches a preset pressure, and the second flushing oil tank B is in a standby state to wait for the next use.
During specific implementation, the two pressure charging control valves V1 and V3 and the two pressure relief control valves V2 and V4 are high-pressure-difference instrument control valves and are used for charging and relieving pressure for the flushing oil tank A/B, and a high-pressure hand valve and an auxiliary line valve can be arranged at the front and the back of the two pressure charging control valves V1 and V3 and the front and the back of the two pressure relief control valves V2 and V4 as required to form an adjusting valve group.
During specific implementation, the two oil inlet control valves V5 and V7 are high-pressure instrument regulating valves and are used for filling oil to the flushing oil tank A/B, and a high-pressure hand valve and an auxiliary line valve can be arranged in front of and behind the control valves as required to form a regulating valve group.
In specific implementation, the two tank bottom cut-off valves V6 and V8 are high-pressure cut-off valves and are used for cutting off or opening the flushing oil tank A/B when the flushing oil tank A/B is switched.
In specific implementation, the flushing oil tank can be further provided with a pressure detection device for detecting the pressure value of the flushing oil tank after high-pressure hydrogen is injected or discharged. And a liquid level detection device can be further arranged and used for detecting the liquid level value of the flushing oil filled or discharged from the flushing oil tank. And a high-pressure oil inlet control valve can be arranged to close in an interlocking manner to prevent high-pressure hydrogen in the flushing oil tank from crossing the flushing oil supply pipeline. And a cut-off valve at the bottom of the tank with low liquid level can be interlocked and closed to prevent high-pressure hydrogen in the flushing oil tank from being communicated with the high-pressure instrument.
During specific implementation, the whole operation process can be manually controlled, and a set of full-automatic control system can be arranged to automatically perform operations such as pressure relief, oil filling, pressure charging, switching and the like on the flushing oil tank. Therefore, the drip irrigation system of the high-pressure solid-containing meter further comprises: the control device is used for automatically controlling the opening and closing states and the opening degree of the pressure charging control valve and the pressure discharging control valve according to the change condition of the pressure in the flushing oil tank; the opening and closing states and the opening degree of the oil inlet control valve and the tank bottom stop valve are automatically controlled according to the change condition of the liquid level of the flushing oil in the flushing oil tank. When two tank bottom cut-off valves V6 and V8 are included, the automatic switching on/off states of the two tank bottom cut-off valves V6 and V8 are also set, thereby automatically switching the two wash oil tanks.
In summary, the main advantages of the drip irrigation system of the high-pressure solid-containing instrument of the present invention are:
(1) The whole system has no rotating equipment and is more stable than the conventional high-pressure drip irrigation system.
(2) By utilizing a high-pressure hydrogen system and a pressure relief and discharge system in the matching device, oil is supplemented into the tank at low pressure, and oil is filled into the instrument at high pressure.
(3) Because the flushing oil quantity of each instrument is very small, the oil tank, the valve, the pipeline and the like of the system are also very small, the high-pressure control valve, the cut-off valve and the like can meet the requirements by adopting about DN25 (the actual size of DN25 is 34mm in outer diameter, and the inner diameter is different along with the difference of the pipe wall thickness), the investment is low, and the system is stable and reliable.
(4) The whole system can be automatically controlled through the PLC, manual operation is completely not needed, and detection parameters only comprise the liquid level and the pressure of the flushing oil tank, so that the system is convenient and simple.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A high pressure solid gauge drip irrigation system comprising: the flushing oil tank, the pressure charging control valve, the pressure relief control valve, the oil inlet control valve and the tank bottom cut-off valve;
the flushing oil tank is connected with the high-pressure instrument through an oil discharge pipeline arranged at the bottom of the flushing oil tank; the pressurizing control valve is arranged on a pressurizing pipeline at the top of the flushing oil tank; the pressure relief control valve is arranged on a pressure relief pipeline at the top of the flushing oil tank; the oil inlet control valve is arranged on an oil inlet pipeline on a tank body of the flushing oil tank; the tank bottom cut-off valve is arranged on the oil discharge pipeline;
injecting flushing oil into the flushing oil tank after the flushing oil tank is depressurized to normal pressure through the oil inlet control valve;
injecting high-pressure hydrogen into the flushing oil tank through the pressurization control valve so that the pressure in the flushing oil tank reaches a preset pressure;
pressing the flushing oil in the flushing oil tank to a high pressure meter by the pressure through the tank bottom shut-off valve;
discharging high-pressure hydrogen from the flushing oil tank through the pressure relief control valve to enable the flushing oil tank to be depressurized to normal pressure;
further comprising:
the control device is used for automatically controlling the opening and closing states and the opening degree of the pressure charging control valve and the pressure discharging control valve according to the change condition of the pressure in the flushing oil tank; the opening and closing states and the opening degrees of the oil inlet control valve and the tank bottom cut-off valve are automatically controlled according to the change condition of the liquid level of the flushing oil in the flushing oil tank;
the high-pressure hand valve and the auxiliary line valve are respectively arranged in front of and behind the charging control valve, the pressure relief control valve and/or the oil inlet control valve to form an adjusting valve group;
hand valves and sight glasses; the hand valve is arranged on a pipeline between the flushing oil tank and the high-pressure instrument; the sight glass is arranged on a pipeline between the flushing oil tank and the high-pressure instrument and is positioned between the hand valve and the high-pressure instrument;
the hand valve is used for: controlling a flow of flushing oil from the flushing oil tank to a high pressure gauge;
the sight glass is used for: observing the flow rate of the flushing oil from the flushing oil tank to the high-pressure instrument, thereby adjusting the opening degree of the hand valve;
further comprising:
and the hydrogenation device is used for injecting high-pressure hydrogen into the flushing oil tank from the outlet of the fresh hydrogen compressor by utilizing a high-pressure hydrogen pipe network in the fresh hydrogen compressor.
2. The high pressure solid content meter drip irrigation system of claim 1 wherein said hand valve is a high pressure needle type valve; the sight glass is a high-pressure sight glass.
3. The high pressure solid gauge drip irrigation system according to claim 1, wherein the flow rate of the flushing oil from the flushing oil tank to the high pressure gauge is 30-60 drops/minute.
4. The high pressure, solid instrumentation drip irrigation system of claim 1 wherein said pressure charge control valve and said pressure discharge control valve are high differential pressure instrumentation control valves; the tank bottom cut-off valve is a high-pressure cut-off valve; the oil inlet control valve is a high-pressure instrument regulating valve.
5. The drip irrigation system of claim 1, wherein the flushing tank is provided with a pressure detection device for detecting a pressure value of the flushing tank after high-pressure hydrogen gas is injected or discharged;
and the flushing oil tank is provided with a liquid level detection device for detecting the liquid level value of the flushing oil filled or discharged from the flushing oil tank.
6. The drip irrigation system of the high-pressure solid-containing instrument according to claim 1, wherein a high-pressure oil inlet control valve is arranged on the flushing oil tank and is closed in an interlocking manner, so as to prevent high-pressure hydrogen in the flushing oil tank from being communicated to a flushing oil supply pipeline;
and the flushing oil tank is provided with a liquid level low tank bottom cut-off valve which is closed in an interlocking manner and is used for preventing high-pressure hydrogen in the flushing oil tank from being communicated with the high-pressure instrument.
7. The high pressure solid-containing meter drip irrigation system of claim 1 wherein said flush tank comprises: the system comprises a first flushing oil tank, a first pressure charging control valve, a first pressure discharging control valve, a first oil inlet control valve, a first tank bottom cut-off valve, a second flushing oil tank, a second pressure charging control valve, a second pressure discharging control valve, a second oil inlet control valve and a second tank bottom cut-off valve;
the first pressure control valve is arranged on a pressure pipeline at the top of the first flushing oil tank; the first pressure relief control valve is arranged on a pressure relief pipeline at the top of the first flushing oil tank; the first oil inlet control valve is arranged on an oil inlet pipeline on a tank body of the first flushing oil tank; a first tank bottom cut-off valve is arranged on the oil discharge pipeline;
the second pressurizing control valve is arranged on a pressurizing pipeline at the top of the second flushing oil tank; the second pressure relief control valve is arranged on a pressure relief pipeline at the top of the second flushing oil tank; the second oil inlet control valve is arranged on an oil inlet pipeline on a tank body of the second flushing oil tank; a second tank bottom cut-off valve is arranged on the oil discharge pipeline;
one flushing oil tank is in a normal use state, and the other flushing oil tank is in a pressure relief, oil filling, pressure charging and standby state;
after the liquid level of the flushing oil in the first flushing oil tank is reduced to a preset low liquid level, the first tank bottom cut-off valve is closed, the second tank bottom cut-off valve is opened, the second flushing oil tank is switched to the second flushing oil tank, the second flushing oil tank is in a normal use state, the first flushing oil tank is decompressed to a normal pressure state through the first pressure relief control valve, the flushing oil is injected into the first flushing oil tank through the first oil inlet control valve, the first oil inlet control valve is closed to stop oil filling when the preset high liquid level is reached, and high-pressure hydrogen is injected into the first flushing oil tank through the first pressure filling control valve, so that the pressure in the first flushing oil tank reaches the preset pressure, and the first flushing oil tank is in a standby state to wait for the next use.
Priority Applications (1)
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| CN201710301379.3A CN106914463B (en) | 2017-05-02 | 2017-05-02 | Drip irrigation system of high-pressure solid-containing instrument |
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| US7178740B2 (en) * | 2004-01-29 | 2007-02-20 | Williams David K | Pressure washer system and method of operating same |
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| CN103811083B (en) * | 2012-11-14 | 2017-06-20 | 中国广核集团有限公司 | Nuclear plant safety injected system and clear up its injection pipeline method for cleaning |
| CN202936337U (en) * | 2012-12-11 | 2013-05-15 | 北京紫晶石精细化工技术有限公司 | Continuous sulfonating and flushing device |
| CN203002711U (en) * | 2013-01-05 | 2013-06-19 | 袁庆斌 | Medium pressure, high pressure and ultrahigh pressure instillation flushing system for detecting instrument |
| CN203508461U (en) * | 2013-09-26 | 2014-04-02 | 重庆永泰流体控制技术有限公司 | Single-pump and multi-way high-pressure fluid conveying system for loop switching in automatic pressure adaptation mode |
| CN204035144U (en) * | 2014-08-01 | 2014-12-24 | 中国石油化工集团公司 | Offshore platform cabin tank circulation stirring rinse-system |
| CN206716646U (en) * | 2017-05-02 | 2017-12-08 | 北京石油化工工程有限公司 | Drip irrigation system of the high pressure containing solid instrument |
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