Continuous exhaust method and system of intermediate pump station and electronic equipment
By establishing reference surfaces and measuring venting points in intermediate pumping stations along long-distance oil pipelines, and adopting manual or automatic continuous venting modes, the problem of gas accumulation in intermediate pumping stations has been solved, ensuring the stability and safety of pumping station operation and improving the efficiency of water-integrated transport commissioning.
Patent Information
- Application Number
- CN202410551800.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-11-07
AI Technical Summary
In long-distance oil pipelines, the accumulation of gas in intermediate pumping stations can harm pump operation. Existing venting methods can only be performed before pumping starts and during shutdown, and cannot continuously remove gas from the pipeline, leading to unstable operation and safety hazards.
By establishing a reference surface, measuring the elevation of the pump station's exhaust pipeline, selecting exhaust points, and adopting manual or automatic continuous exhaust mode, combined with the pump station's geographical factors and temperature dynamics to maintain stability, continuous exhaust is carried out to ensure gas discharge, including two modes: manual continuous exhaust and automatic continuous exhaust.
It enables continuous venting during the operation of intermediate pumping stations, reduces the damage of gas accumulation to pumps, improves the continuity, stability and safety of water intermodal transport commissioning, reduces pump unit downtime, and improves pipeline water intermodal transport commissioning efficiency.
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Figure CN120906791A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of water transportation commissioning of long-distance pipeline, and particularly relates to a method and system for continuous exhaust of an intermediate pump station and an electronic device. BACKGROUND
[0002] There are many methods for liquid pipeline commissioning at home and abroad, and the specific method needs to be selected according to the pipeline conditions and the medium characteristics. For oil pipelines, three methods are mainly used at home and abroad, including full-line water transportation commissioning, post-water-isolation-section commissioning and empty-pipeline oil commissioning. For long-distance oil pipelines, due to the complex terrain, more crossing and large-drop pipeline sections, the risk of segmented water transportation commissioning or empty-pipeline oil commissioning is relatively large, so the full-line water transportation commissioning method is more commonly used.
[0003] In the long-distance oil pipeline, due to the following three situations, different amounts of gas will be generated in the pipeline. First, during the water injection in the large-drop section, liquid column separation is easy to occur, and a large amount of air will gather at the relatively high point nearby. Even after multiple sending of the pig for exhaust, a large amount of gas will exist in the main line for a short time. Second, during the initial debugging of the water transportation commissioning equipment of the oil pump station, the oil pump station is often stopped, and the gas originally dissolved in the water will also gather to the relatively high point nearby. Third, the process pipeline and the water injection of the oil pump station cannot be completely exhausted at one time, especially some dead water sections without exhaust conditions will have a large amount of gas under pressure.
[0004] The gas gathered and transported to the inside of the oil pump will cause great harm to the operation of the pump, and will cause unstable vibration of the oil pump, unstable oil transportation, mechanical seal damage, etc., and even damage the impeller and the ring, causing the pump shaft to deform and be blocked, and other serious accidents.
[0005] However, the existing exhaust operation can only be performed before starting the pump and during the shutdown, so only most of the gas in the pump station under the current working condition can be exhausted. However, with the continuous operation of the pump unit, the intermittent and continuous gas from the inlet main line cannot be exhausted, which will gather in the pump body and cause serious accidents.
[0006] Therefore, it is an urgent problem for those skilled in the art to continuously exhaust the pump station during operation, improve the efficiency of the water transportation commissioning of the pipeline, ensure the continuous, stable and safe water transportation commissioning, and further ensure the safety of the personnel during the commissioning process. SUMMARY
[0007] In view of the above problems, the present application provides a method for continuous exhaust of an intermediate pump station, comprising the following steps:
[0008] A reference surface is set, the top elevations of the exhaust pipelines of the pump station are measured, a plurality of exhaust points are selected, and the highest exhaust pipeline top elevation is obtained as Hmax ;
[0009] During the water injection and exhaust and the shutdown of the pump station, the primary exhaust is sequentially performed on the exhaust points from low to high compared to the elevation.
[0010] According to the geographical factors of the pump station, the dynamic stability of the pump body temperature, and the release degree of the primary exhaust, a corresponding sustained exhaust mode is matched.
[0011] According to the matched sustained exhaust mode, the first exhaust point A is operated for sustained exhaust, and H4-H max ≥200mm, wherein H4 is the elevation of the sustained exhaust port, the exhaust reaction is observed, and the incoming gas and exhaust condition are confirmed.
[0012] According to the exhaust end standard, it is determined whether the sustained exhaust process is ended.
[0013] Preferably, the highest exhaust pipeline pipe top elevation H max , specifically comprising the following steps.
[0014] The top elevations of the exhaust pipelines of the pump station are measured and recorded based on the same ground of the pump station.
[0015] Select a number of relatively high exhaust pipeline top elevations as exhaust points, including the top elevation H 1-1 of the exhaust pipe of the ball collecting cylinder, the top elevation H 1-2 of the exhaust pipe of the horizontal filter behind the ball collecting cylinder, the top elevation H2 of the exhaust pipe of the main pump inlet filter, and the top elevation H3 of the exhaust pipe of the main pump.
[0016] Preferably, the primary exhaust specifically comprises the following steps.
[0017] Compared to the elevation, during the water injection and exhaust and the shutdown of the pump station, the exhaust point is sequentially opened from low to high, the exhaust stop valve is opened for manual exhaust, and the exhaust stop valve of the highest exhaust point of the intermittent switch is opened for primary exhaust of the process pipeline of the pump station.
[0018] Preferably, the geographical factors of the pump station include the distance between the pump station and the upstream pump station, the pipeline routing flatness of the pump station, and the terrain drop of the pump station.
[0019] The dynamic stability of the pump body temperature includes the dynamic stability of the mechanical seal temperature of the driving end after the start of the main pump, the dynamic stability of the mechanical seal temperature of the non-driving end, and the dynamic stability of the pump shell temperature.
[0020] Preferably, the sustained exhaust specifically comprises the following steps.
[0021] The first exhaust point A is matched with the manual sustained exhaust mode, the exhaust stop valve at the first exhaust point A is removed, a first pipeline is added behind the first exhaust point A, and a first exhaust stop valve is installed on the first pipeline.
[0022] Based on the datum plane, the first pipeline exhaust port elevation is adjusted to H4 and fixed, ensuring that H4-H max ≥ 200 mm, wherein H max is the highest exhaust pipeline pipe top elevation, and H4 is the continuous exhaust port elevation.
[0023] A new hose is added at the outlet of the first exhaust cutoff valve, and the outlet end of the hose is introduced into the sludge tank. The reaction of the outlet end of the hose and the liquid level of the sludge tank is observed to confirm the incoming gas and exhaust condition.
[0024] Preferably, the continuous exhaust specifically includes the following steps.
[0025] The automatic continuous exhaust mode is matched, a second pipeline is added after the exhaust cutoff valve at the first exhaust point A, an automatic exhaust valve is installed at the end of the second pipeline, the second pipeline exhaust port elevation is adjusted to H4 and fixed, ensuring that H4-H max ≥ 200 mm, wherein H max is the highest exhaust pipeline pipe top elevation, and H4 is the continuous exhaust port elevation.
[0026] The reaction of the automatic exhaust valve outlet is observed to confirm the incoming gas and exhaust condition.
[0027] Preferably, in the manual continuous exhaust mode, the valve opening of the exhaust cutoff valve is determined according to the size of the incoming gas of the pump station trunk line, and the valve opening is sequentially reduced according to the continuous exhaust time, so as to ensure that the decrease value of the main pump inlet pressure is not more than the maximum pressure drop value, and is not lower than the minimum allowable suction pressure value of the pump.
[0028] Preferably, according to the exhaust end standard, it is determined whether the continuous exhaust process is ended, which specifically includes the following steps.
[0029] The exhaust end standard includes whether the pump body temperature is maintained within a certain range after the pump is started within a fixed time period, and whether there is an abnormal working condition.
[0030] If it is determined that the exhaust end standard is met, the continuous exhaust process is ended.
[0031] The present application also claims a system comprising:
[0032] A metering unit for establishing a datum plane, metering the top elevations of the exhaust pipelines of the pump station, selecting a plurality of exhaust points, and obtaining the highest exhaust pipeline pipe top elevation H max .
[0033] A primary exhaust unit for comparing elevations and sequentially performing primary exhaust on the exhaust points from low to high during the water injection and shutdown of the pump station.
[0034] The matching unit is used for matching the corresponding continuous exhaust mode according to the pump station geographical factor, pump body temperature dynamic stability maintenance and initial exhaust release degree.
[0035] The continuous exhaust unit operates continuous exhaust on the first exhaust point A according to the matched continuous exhaust mode, and ensures H4-H max ≥200mm, wherein H4 is the height of the continuous exhaust port, the exhaust reaction is observed, and the incoming gas and exhaust condition are confirmed.
[0036] The determination unit is used for determining whether the continuous exhaust process is ended according to the exhaust ending standard.
[0037] The present application also claims to protect an electronic device, characterized in that the electronic device comprises at least one processor and at least one memory, the memory is in data connection with the processor, wherein,
[0038] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the method of any one of claims 1-8.
[0039] Advantages
[0040] The present application adds a continuous exhaust mode, which can continuously exhaust the gas in the pump station during pump unit operation and shutdown. First, the gas generated by the intermediate pump station is usually gathered at the relatively high point of the pump station pipeline. The continuous exhaust mode is used for exhaust, which can reduce the continuous incoming gas that gathers and enters the pump body to cause serious accidents during pipeline transportation, so that the liquid pipeline water combined operation is more continuous, stable and safe. Second, this process breaks the conventional mode of only performing exhaust before starting the pump and during shutdown in the prior art, and can perform continuous exhaust during pump shutdown and operation, which means that the exhaust also reduces the pump shutdown time and improves the pipeline water combined operation efficiency.
[0041] Moreover, considering the complex pump station environment, different continuous exhaust modes are matched for exhaust according to the pump station geographical factor, pump body temperature dynamic stability maintenance and initial exhaust release degree, which is suitable for local conditions and has high practicability.
[0042] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and achieved by the structures indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS
[0043] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative work based on the embodiments in the present application shall fall within the protection scope of the present application.
[0044] Figure 1 A schematic diagram of the continuous exhaust method in the embodiment of the present application is shown.
[0045] Figure 2 A schematic diagram of the exhaust point of the parallel oil conveying intermediate pump station in the embodiment of the present application is shown.
[0046] Figure 3 A schematic diagram of the exhaust point of the serial oil conveying intermediate pump station in the embodiment of the present application is shown.
[0047] Figure 4 A schematic diagram of the initial exhaust of the ball collecting cylinder exhaust pipe in the embodiment of the present application is shown.
[0048] Figure 5 A schematic diagram of the newly added first pipeline in the manual continuous exhaust mode in the embodiment of the present application is shown.
[0049] Figure 6 A schematic diagram of the newly added second pipeline in the automatic continuous exhaust mode in the embodiment of the present application is shown.
[0050] Figure 7 A schematic diagram of the newly added first pipeline at the top of the ball collecting cylinder in the embodiment of the present application is shown.
[0051] Figure 8 A schematic diagram of a system in the embodiment of the present application is shown.
[0052] Figure 9 A schematic diagram of an electronic device in the embodiment of the present application is shown. DETAILED DESCRIPTION
[0053] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative work based on the embodiments in the present application shall fall within the protection scope of the present application.
[0054] The present application is mainly suitable for the water combined transportation of long-distance pipelines, and solves the exhaust problem of the intermediate pump station in the long-distance oil conveying pipeline.
[0055] REFERENCE Figure 1 ,Figure 1 The figure shows the schematic diagram of the continuous exhaust method in the embodiment of the application, which mainly aims at the exhaust problem of the intermediate pump station pipeline, wherein;
[0056] In S1,
[0057] Take the same ground of the pump station as the reference, measure and record the top elevation of each exhaust pipeline of the pump station;
[0058] In the initial stage of production, in order to ensure that the water flow into the pump is fully filtered, the user can select the horizontal filter behind the ball collecting cylinder according to the number of impurities in the pump station pipeline. Therefore,
[0059] Reference Figure 2 , Figure 2 The figure shows the schematic diagram of the exhaust point of the parallel oil conveying intermediate pump station in the embodiment of the application;
[0060] Reference Figure 3 , Figure 3 The figure shows the schematic diagram of the exhaust point of the serial oil conveying intermediate pump station in the embodiment of the application;
[0061] Select several relatively high top elevations of the exhaust pipeline as the exhaust points, including the top elevation of the exhaust pipeline of the ball collecting cylinder (H 1-1 ), the top elevation of the exhaust pipeline of the horizontal filter behind the ball collecting cylinder (H 1-2 ), the top elevation of the exhaust pipeline of the main pump inlet filter (H 2-1 , H 2-2 , H 2-3 ), and the top elevation of the exhaust pipeline of the main pump (H 3-1 , H 3-2 , H 3-3 ).
[0062] In S2,
[0063] Reference Figure 4 , Figure 4 The figure shows the schematic diagram of the initial exhaust of the exhaust pipeline of the ball collecting cylinder in the embodiment of the application;
[0064] Compare the elevations, sequentially open the exhaust cutoff valves of the exhaust points from low to high during the water injection and shutdown of the pump station, and perform the initial exhaust on the process pipeline of the pump station by opening the exhaust cutoff valve of the highest exhaust point of the intermittent switch.
[0065] In S3,
[0066] According to the geographical factors of the pump station, the dynamic stability of the pump body temperature, and the initial exhaust release degree, match the corresponding continuous exhaust mode;
[0067] When the intermediate pump station is close to the upstream pump station, the inter-station pipeline is flat, most of the gas in the inlet main pipeline is fully discharged in the initial exhaust stage, and the temperature of the driving end mechanical seal, the temperature of the non-driving end mechanical seal and the temperature of the pump shell can be dynamically maintained between 30 and 40℃ after the start of the main pump without high temperature alarm or obvious rising trend, the manual continuous exhaust can be used.
[0068] When the intermediate pump station is far away from the upstream pump station, the inter-station pipeline is rugged, the terrain has large height difference, the gas in the inlet main pipeline is difficult to be fully discharged in the initial exhaust stage, and the temperature of the driving end mechanical seal, the temperature of the non-driving end mechanical seal and the temperature of the pump shell are difficult to be stably maintained between 30 and 40℃ after the start of the main pump, even the temperature of the mechanical seal is abnormally rapidly raised, the mechanical seal smokes and is damaged and leaked, and the like, the automatic continuous exhaust mode should be used.
[0069] In S4,
[0070] Reference Figure 5 , Figure 5 The first pipeline is shown in the manual continuous exhaust mode added in the embodiment of the application.
[0071] It is worth noting that, considering that the ball collecting cylinder has large internal space and suitable position for modification, generally, the first exhaust point A is located at the top of the exhaust pipe of the ball collecting cylinder (H 1-1 ).
[0072] In the manual continuous exhaust mode, the exhaust cutoff valve on the exhaust pipe of the ball collecting cylinder is removed, the first pipeline is added behind the exhaust cutoff valve, and the first exhaust cutoff valve is installed on the first pipeline.
[0073] Based on the reference surface, the height of the exhaust port of the first pipeline is adjusted to H4 and fixed, and H4-H max ≥ 200mm is ensured, wherein H max is the top height of the highest exhaust pipeline, and H4 is the height of the continuous exhaust port.
[0074] A hose is added at the outlet of the first exhaust cutoff valve, the outlet end of the hose is introduced into the sludge tank, whether there are intermittent bubbles at the outlet of the hose and whether the hose swings irregularly are observed, and whether the liquid level of the sludge tank continuously rises is monitored, so that whether the inlet pipeline is supplied with gas and the gas amount can be determined. Continuous observation is performed until most of the gas in the inlet pipeline is completely discharged.
[0075] In the manual continuous exhaust mode, the valve opening of the exhaust cutoff valve is determined according to the gas amount of the pump station main line, the valve is fully opened in the early stage, and the valve is gradually closed in the later stage, so that the decrease value of the inlet pressure of the main pump of the pump station is not more than 0.1MPa, and the minimum pressure permission value of the pump is not less than 0.5MPa.
[0076] Reference Figure 6 , Figure 6 The second pipeline in the automatic continuous exhaust mode is shown in the embodiment of the application.
[0077] The second pipeline is added after the exhaust cutoff valve on the collecting cylinder exhaust pipe in the automatic continuous exhaust mode, and an automatic exhaust valve is installed at the end of the second pipeline. The elevation of the second pipeline exhaust pipe is adjusted to H4 and fixed to ensure that H4-H max ≥200mm, wherein H max is the highest exhaust pipe line top elevation of the initial exhaust, and H4 is the continuous exhaust port elevation.
[0078] The exhaust outlet reaction of the automatic exhaust valve is observed to confirm the incoming gas and exhaust conditions.
[0079] In S5,
[0080] When the cumulative operation of the main pump of the pump station exceeds 5 days, the driving end mechanical seal temperature, the non-driving end mechanical seal temperature, and the pump shell temperature after starting can be stably maintained between 30 and 40°C, and there is no obvious rising trend, the mechanical seal has no heating, smoking, and damage, leakage, and failure, etc. It is indicated that the gas in the pump station and the main pipeline of the inlet pipeline is basically exhausted.
[0081] It is worth noting that in the automatic continuous exhaust mode, the pump station and the main pipeline of the inlet pipeline can also be judged by the automatic exhaust valve outlet for several days without continuous sound.
[0082] When the user uses it, the user can take a certain intermediate pump station of the China-Myanmar crude oil pipeline as an example, and further refer to the following embodiments;
[0083] First, measure and record the top elevations of the exhaust pipes of the pump station based on the same ground of the pump station.
[0084] In order to ensure that the water flow into the pump is fully filtered, a horizontal filter behind the collecting cylinder can be considered for continuous use.
[0085] Second, select several relatively high exhaust pipe line top elevations as exhaust points, including the top elevation of the collecting cylinder exhaust pipe (H 1-1 ), the top elevation of the horizontal filter exhaust pipe behind the collecting cylinder (H 1-2 ), the top elevation of the main pump inlet filter exhaust pipe (H2), and the top elevation of the main pump exhaust pipe (H3).
[0086] Compare the elevations. During the pump station water injection and shutdown, open the exhaust cutoff valves of the exhaust points from low to high in turn to perform manual exhaust, and perform initial exhaust on the pump station process pipeline by opening the exhaust cutoff valve of the highest intermittent switch.
[0087] Referring to Table 1, Table 1 shows the exhaust point elevation of a parallel oil conveying intermediate pump station of the China-Myanmar pipeline;
[0088] Table 1 shows the exhaust point elevation of a parallel oil conveying intermediate pump station of the China-Myanmar pipeline
[0089]
[0090] In the third step, according to the geographical factors of the pump station of the China-Myanmar pipeline, the pump body temperature dynamic stability maintenance and the initial exhaust release degree, a manual continuous exhaust mode is selected.
[0091] Reference Figure 7 , Figure 7 The first pipeline is newly added to the top exhaust pipe of the ball collecting cylinder, that is, after the exhaust cutoff valve on the exhaust pipe of the ball collecting cylinder is removed, the first pipeline is newly added, and the exhaust cutoff valve is installed on the first pipeline, fixed, and ensured that the first pipeline exhaust port elevation is higher than 3m. After the modification is completed, the first exhaust cutoff valve on the exhaust pipe of the ball collecting cylinder is kept fully open, and a soft pipe of a certain strength is temporarily added to guide the water flow discharged into the waste oil tank. Whether there are intermittent bubbles at the outlet of the soft pipe, whether the soft pipe swings irregularly, and whether the liquid level of the waste oil tank continues to rise can determine whether the gas in the main pipeline of the inlet pipeline is basically discharged clean. Continuous observation is performed until most of the gas in the main pipeline of the inlet pipeline is discharged clean.
[0092] When the cumulative operation of the main pump of the pump station exceeds 5 days, the temperature of the mechanical seal at the driving end after starting, the temperature of the mechanical seal at the non-driving end and the temperature of the pump shell are stably maintained between 30 and 40 DEG C, and there is no obvious rising trend, the mechanical seal does not heat and smoke, and there is no damage, leakage and failure, etc. It is indicated that the gas in the pump station and the main pipeline of the inlet pipeline is basically discharged clean.
[0093] Reference Figure 8 , Figure 8 A system schematic diagram in the embodiment of the application is shown;
[0094] The application also claims a system comprising;
[0095] The metering unit is used for setting a reference surface, metering the top elevations of the exhaust pipes of the pump station, selecting a plurality of exhaust points, and obtaining the highest exhaust pipe top elevation H max ;
[0096] The initial exhaust unit is used for comparing the elevations during water injection and exhaust of the pump station and during shutdown, and sequentially performing initial exhaust on the exhaust points from low to high;
[0097] The matching unit is used for matching a corresponding continuous exhaust mode according to the geographical factors of the pump station, the pump body temperature dynamic stability maintenance and the initial exhaust release degree;
[0098] A continuous exhaust unit is configured to operate continuous exhaust at the first exhaust point A according to a matched continuous exhaust mode, ensuring H4-H max ≥200mm, wherein H4 is the height of the continuous exhaust port, the exhaust reaction is observed, and the incoming gas and exhaust condition are confirmed;
[0099] A determination unit is configured to determine whether the continuous exhaust process is ended according to an exhaust ending standard.
[0100] Reference Figure 9 , Figure 9 An electronic device is shown in the embodiment of the present application;
[0101] An electronic device, characterized in that the electronic device comprises at least one processor and at least one memory, the memory is in data connection with the processor, wherein,
[0102] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute a continuous exhaust method.
[0103] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A method of continuous venting of an intermediate pump station, characterized in that, The method comprises the following steps: A datum plane is established, the top elevation of each exhaust pipeline of the pump station is measured, a plurality of exhaust points are selected, and the highest exhaust pipeline top elevation is H max ; During the water injection and exhaust of the pump station and the shutdown period, the primary exhaust is sequentially performed from low to high on the exhaust points according to the elevation comparison; According to the geographical factors of the pump station, the dynamic stability of the pump body temperature and the release degree of the primary exhaust, a corresponding continuous exhaust mode is matched; According to the matched continuous exhaust mode, the first exhaust point A is operated for continuous exhaust, ensuring H4-H max ≥ 200 mm, wherein H4 is the elevation of the continuous exhaust port, the exhaust reaction is observed, and the incoming gas and exhaust condition are confirmed; According to the exhaust end standard, it is determined whether the continuous exhaust process is ended.
2. The method of claim 1, wherein, The highest exhaust pipeline pipe top elevation H is obtained max , specifically comprising the following steps; Taking the same ground of the pump station as the reference, the top elevation of each exhaust pipeline of the pump station is measured and recorded; Select several relatively high exhaust pipeline pipe top elevation as exhaust point, including the ball collecting cylinder exhaust pipe top elevation (H 1-1 ), the ball collecting cylinder rear horizontal filter exhaust pipe top elevation (H 1-2 ), the main pump inlet filter exhaust pipe top elevation (H2), the main pump exhaust pipe top elevation (H3).
3. The method of claim 1, wherein, The primary exhaust specifically comprises the following steps: During the water injection and exhaust of the pump station and the shutdown period, the primary exhaust is sequentially performed from low to high on the exhaust points according to the elevation comparison.
4. The method of claim 1, wherein, The geographical factors of the pump station include the distance between the pump station and the upstream pump station, the pipeline routing flatness of the pump station and the terrain difference of the pump station. The dynamic stability of the pump body temperature includes the dynamic stability of the mechanical seal temperature of the driving end after the start of the main pump, the dynamic stability of the mechanical seal temperature of the non-driving end and the dynamic stability of the pump shell temperature.
5. The method of claim 1, wherein, The continuous exhaust specifically comprises the following steps: The first exhaust point A is matched with the manual continuous exhaust mode, the exhaust cutoff valve at the first exhaust point A is removed, the first pipeline is added behind the first exhaust point A, and the first exhaust cutoff valve is installed on the first pipeline. Based on the datum, the first pipeline exhaust port elevation is adjusted to H4 and fixed, ensuring that H4-H max ≥ 200 mm, wherein H max is the highest exhaust pipeline pipe top elevation, and H4 is the continuous exhaust port elevation; The soft pipe is added at the outlet of the first exhaust cutoff valve, the outlet end of the soft pipe is introduced into the waste oil tank, the reaction of the outlet end of the soft pipe and the liquid level reaction of the waste oil tank are observed, and the air and exhaust conditions are confirmed.
6. The method of claim 1, wherein, The continuous exhaust specifically comprises the following steps: The matching automatic continuous exhaust mode is added with a second pipeline behind the exhaust cutoff valve at the first exhaust point A, and an automatic exhaust valve is installed at the end of the second pipeline. The elevation of the second pipeline exhaust pipe is adjusted to H4 and fixed to ensure H4-H max ≥ 200 mm, wherein H max is the highest exhaust pipeline top elevation of the initial exhaust, and H4 is the continuous exhaust port elevation. The reaction of the outlet of the automatic exhaust valve is observed, and the air and exhaust conditions are confirmed.
7. The method of claim 5, wherein, In the manual continuous exhaust mode, the valve opening of the exhaust cutoff valve is determined according to the size of the dry line air volume of the pump station, the valve opening is sequentially reduced according to the continuous exhaust time, so as to ensure that the decrease value of the main pump inlet pressure is not more than the maximum pressure drop value and is not lower than the minimum allowable suction pressure value of the pump.
8. The method of claim 1, wherein, According to the exhaust end standard, it is determined whether the continuous exhaust process is ended, which specifically comprises the following steps: The exhaust end standard includes whether the pump body temperature is maintained in a specific range after the pump is started and whether there is an abnormal working condition within a fixed time period; If the exhaust end standard is met, the continuous exhaust process is ended.
9. A system, characterized by The method comprises: A metering unit is used to set up a reference surface, meter the top elevation of each exhaust pipeline of the pump station, select several exhaust points, and obtain the highest exhaust pipeline top elevation as H max ; A primary exhaust unit is used for sequentially performing the primary exhaust from low to high on the exhaust points according to the elevation comparison during the water injection and exhaust of the pump station and the shutdown period; A matching unit is used for matching a corresponding continuous exhaust mode according to the geographical factors of the pump station, the dynamic stability of the pump body temperature and the release degree of the primary exhaust; Continuous exhaust unit, according to the matched continuous exhaust mode, operating continuous exhaust on the first exhaust point A, ensuring H4-H max ≥ 200 mm, wherein H4 is the elevation of the continuous exhaust port, the exhaust reaction is observed, and the incoming gas and exhaust conditions are confirmed; A determination unit is used for determining whether the continuous exhaust process is ended according to the exhaust end standard.
10. An electronic device, comprising: The electronic device comprises at least one processor and at least one memory, and the memory is in data connection with the processor, wherein The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the method in any one of claims 1-8.