Utility model content
The utility model embodiment provides a kind of risk evaluating system of gas storage uphole equipment, with the technical matters that the safety verification cost at least solving gas storage surface technology facility in prior art is higher.
According to an aspect of the utility model embodiment, provide a kind of risk evaluating system of gas storage uphole equipment, comprising: multiple uphole equipment to be assessed; Assessment apparatus, set up with each uphole equipment to be assessed respectively and communicate, assessment apparatus comprises: recognition device and processor, and wherein, recognition device, for identifying the risk factors that multiple uphole equipment to be assessed is corresponding; Processor, be connected with recognition device, at least one failure consequence factor for determining according to risk factors calculates the Failure Assessment result of uphole equipment to be assessed, and calculates the failure probability of uphole equipment to be assessed according at least one failure probability factor that risk factors are determined.
Further, uphole equipment to be assessed is following any one or plurality of devices: metering separator, gas injection pipeline, air compressor, production separator, fuel gas surge tank, closed drain tank, instrument wind storage tank, the air cooler that enters the station, plate type finned heat exchanger, the separation vessel that enters the station, low-temperature separator, ethylene glycol regenerating device, vibrating spectral analysis, the filtrator that enters the station, reciprocating compressor, condensation heater, shell-and-tube heat exchanger and vibrating spectral analysis outlet oil strainer.
Further, risk evaluating system also comprises: the first memory device, is connected with processor, for storing at least one failure probability factor of at least one failure consequence Summing Factor.
Further, processor comprises: the first sub-processor, is connected with the first memory device, for calculating the Failure Assessment result of uphole equipment to be assessed according at least one failure consequence factor; Second sub-processor, is connected with the first memory device, for calculating the failure probability of uphole equipment to be assessed according at least one failure probability factor; 3rd sub-processor, is connected with the first sub-processor and the second sub-processor respectively, for determining the risk class of uphole equipment to be assessed based on failure consequence assessment result, failure probability and the risk Metrics that obtains in advance.
Further, processor also comprises: collecting device, is connected with uphole equipment to be assessed, for gathering the device parameter of uphole equipment to be assessed; Fetch equipment, is connected with uphole equipment to be assessed, for reading the Default Value parameter of uphole equipment to be assessed; Comparer, is connected with collecting device and fetch equipment respectively, for compare facilities parameter and Default Value parameter, obtains comparative result; 4th sub-processor, for determining the risk factors of uphole equipment to be assessed according to comparative result.
Further, risk evaluating system also comprises: display, is connected respectively with processor and recognition device, for showing risk factors corresponding to multiple uphole equipment to be assessed, failure consequence assessment result and failure probability.
Further, risk evaluating system also comprises: starter gear, is connected with processor, for the work of start treatment device.
Further, risk evaluating system also comprises: signal generates equipment, is connected with processor, during for exceeding predetermined level value at risk class, generates alerting signal.
Further, risk evaluating system also comprises: panalarm, generates equipment connection with signal, for reporting to the police according to alerting signal.
Further, panalarm comprises: pilot lamp, generates equipment connection with signal, for lighting when receiving alerting signal; Loudspeaker, generates equipment connection with signal, for playing alerting signal.
Adopt the utility model embodiment, after recognition device identifies risk factors corresponding to multiple uphole equipment to be assessed, processor determines at least one failure consequence silver and at least one failure probability factor of uphole equipment to be assessed according to the risk factors identified; The failure consequence assessment result of this uphole equipment to be assessed is generated according at least one failure consequence factor, and the failure probability of this uphole equipment to be assessed is generated according at least one failure probability factor, to instruct based on the failure consequence assessment result generated and failure probability, safety verification is carried out to this uphole equipment to be assessed.By the utility model embodiment, instruct according to the failure consequence assessment result generated and failure probability and safety verification is carried out to uphole equipment (as gas storage uphole equipment) to be assessed, reasonable distribution can be carried out to checkout resource under the limited condition of checkout resource, thus most of resource is invested the comparatively serious and equipment that failure probability is larger of failure consequence, less resource is invested the comparatively light and equipment that failure probability is less of failure consequence, overall risk is made to control in tolerance interval, reach the effect significantly reducing inspection cost on the basis ensureing the safe operation of gas storage uphole equipment.By the utility model embodiment, solve the technical matters that the safety verification cost of gas storage surface technology facility in prior art is higher, achieve the effect significantly reducing inspection cost on the basis ensureing the safe operation of gas storage uphole equipment.
Embodiment
The utility model scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of the utility model part, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
It should be noted that, term " first ", " second " etc. in instructions of the present utility model and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiment of the present utility model described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, and intention is to cover not exclusive comprising.
Fig. 1 is the schematic diagram of the risk evaluating system of gas storage uphole equipment according to the utility model embodiment, and as shown in Figure 1, this system can comprise: multiple uphole equipment 10 (only illustrating in Fig. 1) to be assessed; Assessment apparatus 30, set up with each uphole equipment to be assessed respectively and communicate, assessment apparatus comprises: recognition device 31 and processor 33, and wherein, recognition device, for identifying the risk factors that multiple uphole equipment to be assessed is corresponding; Processor, be connected with recognition device, at least one failure consequence factor for determining according to risk factors calculates the Failure Assessment result of uphole equipment to be assessed, and calculates the failure probability of uphole equipment to be assessed according at least one failure probability factor that risk factors are determined.
Adopt the utility model embodiment, after recognition device identifies risk factors corresponding to multiple uphole equipment to be assessed, processor determines at least one failure consequence silver and at least one failure probability factor of uphole equipment to be assessed according to the risk factors identified; The failure consequence assessment result of this uphole equipment to be assessed is generated according at least one failure consequence factor, and the failure probability of this uphole equipment to be assessed is generated according at least one failure probability factor, to instruct based on the failure consequence assessment result generated and failure probability, safety verification is carried out to this uphole equipment to be assessed.By the utility model embodiment, instruct according to the failure consequence assessment result generated and failure probability and safety verification is carried out to uphole equipment (as gas storage uphole equipment) to be assessed, reasonable distribution can be carried out to checkout resource under the limited condition of checkout resource, thus most of resource is invested the comparatively serious and equipment that failure probability is larger of failure consequence, less resource is invested the comparatively light and equipment that failure probability is less of failure consequence, overall risk is made to control in tolerance interval, reach the effect significantly reducing inspection cost on the basis ensureing the safe operation of gas storage uphole equipment.By the utility model embodiment, solve the technical matters that the safety verification cost of gas storage surface technology facility in prior art is higher, achieve the effect significantly reducing inspection cost on the basis ensureing the safe operation of gas storage uphole equipment.
In the utility model above-described embodiment, uphole equipment to be assessed can be following any one or plurality of devices: metering separator, gas injection pipeline, air compressor, production separator, fuel gas surge tank, closed drain tank, instrument wind storage tank, the air cooler that enters the station, plate type finned heat exchanger, the separation vessel that enters the station, low-temperature separator, ethylene glycol regenerating device, vibrating spectral analysis, the filtrator that enters the station, reciprocating compressor, condensation heater, shell-and-tube heat exchanger and vibrating spectral analysis outlet oil strainer.
Particularly, uphole equipment to be assessed can be gas storage uphole equipment, and as shown in Figure 2, gas storage uphole equipment mainly comprises gathering system 21, metering outfit 22, compressor 23, dehydration desulfurizer 24 and external transport pipeline 25 etc.Gathering system is the intermediate link connecting injection-production well 26 and central station (not shown in Fig. 2), and this gathering system is identical with the gathering system in general gas field, and just gas-gathering line is thicker, and volume is larger, and the large well of ability and gas storage matches like this.Compressor is located at from the central station close to well usually, for gas injection or gas production.Compressor is generally used for gas injection, because the pressure of the pressure ratio pipe network system of underground natural gas storage is high.Dew point control device (as dehydration desulfurizer) mainly dewaters to gas well extraction gas, de-hydrocarbon process, prevents rock gas from long-distance transport pipes, forming hyrate or produces natural air lift lime set frozen block pipeline, slowing down the corrosion to long-distance transport pipes.External transport pipeline couples together gas storage central station and gas transmission line.The length of external transport pipeline depends on distance between the two, and it is in fact the same with other transfer lines in gas storage system, and design is also identical.
Alternatively, in order to assess one by one uphole equipment (as gas storage uphole equipment) to be assessed, can according to equipment function separately by its division unit, gas storage uphole equipment can comprise several unit divided by function as follows:
(1) injection-production well mouth device and note adopt pipeline: injection-production well is the passage of gas storage under rock gas turnover, the main above-ground line of its well head set-up, valve group, metering separator, well head heating restriction device, service cylinder, ball collecting chamber, instrument cubicle.
(2) gas gathering station: the function of gas gathering station, after the well stream of gas production in the future thing carries out two-phase laminated flow two-phase flow measurement, enters production separator, divide and give vent to anger into dew point control device, transport to multi-purpose station after point fluid throttling pressure regulation.Its device mainly contains air compressor, lime set service cylinder, ball collecting chamber, fuel gas surge tank, closed drain tank, production separator, instrument wind storage tank.
(3) dew point control device: dew point control device major equipment is for the air cooler that enters the station is (because dew point device operates in the winter time, environment temperature is lower, and dry air cooled heat exchanger can meet heat transfer requirements), plate type finned heat exchanger, the separation vessel that enters the station, low-temperature separator, rich ethylene glycol separation vessel and ethylene glycol regenerating device.
(4) gas injection plant: the major equipment of gas injection plant has vibrating spectral analysis, enter the station filtrator and compressor outlet oil strainer.Wherein, vibrating spectral analysis is the nucleus equipment of gas injection plant, only has the safe and reliable operation of vibrating spectral analysis, the normal operation of the whole gas storage of guarantee.The filtrator that enters the station removes the dust granules that in the gas that enters the station, diameter is greater than 5 μm.The compressor lubricant oil carried in dry gas after compressor outlet oil strainer removing compressor, ensures that gas storage is not contaminated.
By the utility model above-described embodiment, when carrying out risk assessment to the uphole equipment of gas storage, consider the parameter of distinct device in gas storage actual motion, the situation that operating mode differs, different failure consequence evaluation results and failure probability is drawn based on distinct device, what difference can be had to stress to distinct device carries out safety verification, thus when checkout resource is limited, most of resource is invested the equipment of risk comparatively large (as comparatively serious in failure consequence and failure probability is handed over greatly), and minor resource is invested the equipment of risk less (as comparatively light in failure consequence and failure probability is handed over little), overall risk is controlled within the acceptable range, reach ensure equipment safety operation basis on significantly reduce the effect of inspection cost.
According to the utility model above-described embodiment, risk evaluating system can also comprise: the first memory device, is connected with processor, for storing at least one failure probability factor of at least one failure consequence Summing Factor.
Particularly, first memory device can at least one failure probability factor of at least one failure consequence Summing Factor of determining of storage of processor, so that this at least one failure probability factor of at least one failure consequence Summing Factor of follow-up use calculates Failure Assessment result and the failure probability of uphole equipment to be assessed.
In the utility model above-described embodiment, processor can comprise: the first sub-processor, is connected with the first memory device, for calculating the Failure Assessment result of uphole equipment to be assessed according at least one failure consequence factor; Second sub-processor, is connected with the first memory device, for calculating the failure probability of uphole equipment to be assessed according at least one failure probability factor; 3rd sub-processor, is connected with the first sub-processor and the second sub-processor respectively, for determining the risk class of uphole equipment to be assessed based on failure consequence assessment result, failure probability and the risk Metrics that obtains in advance.
Particularly, after at least one the failure consequence factor determining uphole equipment to be assessed, first sub-processor reads type and the weighted value of each failure consequence factor, inquire about the first inefficacy score value corresponding with the type of each failure consequence factor, using the product of the weighted value of each failure consequence factor and the first corresponding inefficacy score value as the appraisal result CF of each failure consequence factor, each appraisal result is then used to calculate the failure consequence assessment result COF of this uphole equipment to be assessed.
Further, after at least one the failure probability factor determining uphole equipment to be assessed, second sub-processor reads type and the weighted value of each failure probability factor, inquire about the second inefficacy score value corresponding with the type of each failure probability factor, using the product of the weighted value of each failure probability factor and the second corresponding inefficacy score value as the factor score LF of each failure probability factor, each factor score LF is then used to calculate the failure probability LOF of this uphole equipment to be assessed.
In this embodiment, after the failure consequence assessment result calculating uphole equipment to be assessed and failure probability, the 3rd sub-processor can also calculate the risk class of uphole equipment to be assessed according to this failure consequence assessment result, this failure probability and the risk Metrics obtained in advance.Particularly, the 3rd sub-processor inquires about failure consequence grade corresponding to this failure consequence assessment result, and inquires about failure probability grade corresponding to this failure probability; Based on the risk Metrics obtained in advance, determine failure consequence grade and failure probability grade are to should which region of risk Metrics, and using the risk class of the value-at-risk in this region as this uphole equipment to be assessed.
Further, 3rd word processor using the value of failure consequence grade as abscissa value, and using the value of failure probability grade as ordinate value, risk Metrics locates a position, and using this position as the region in above-described embodiment, using read this region value-at-risk and by the risk class of this value-at-risk as this uphole equipment to be assessed.
In an optional embodiment, the failure consequence grade of above-mentioned uphole equipment can be divided into A ~ E five grades successively according to equipment failure consequence assessment result COF, wherein, the A level failure consequence that evaluation score is minimum is the lightest, otherwise, the E level failure consequence that evaluation score is the highest is the most serious, specifically sees the table 1 of failure consequence grade classification.
Table 1
Failure consequence classification |
Score value |
A |
<28 |
B |
28~35 |
C |
35~41 |
D |
41~49 |
E |
49~95 |
In this embodiment, similar with failure consequence, failure probability can be divided into 1 ~ 5 five grade, wherein, 1 grade of failure probability of marking minimum is minimum, otherwise 5 grades of failure probabilities that evaluation score is the highest are the highest, specifically see the table 2 of failure probability grade classification.
Table 2
Failure probability classification |
Score value |
1 |
<88 |
2 |
88~130 |
3 |
130~214 |
4 |
214~806 |
5 |
>806 |
Further, using failure consequence grade as horizontal ordinate, and with failure probability grade for ordinate, failure probability and failure consequence can be divided into different brackets by the order of severity, form a risk Metrics, as shown in Figure 3.In figure 3, failure probability grade 1 to 5 grades represents that probable value increases successively, failure consequence grade A to E represents that consequence is more and more serious, value-at-risk is also divided into five risk class according to Fig. 3, correspond to low-risk district respectively and (comprise the A1 region in Fig. 3, B1 region and A2 region), medium to low-risk district (comprises the A3 region in Fig. 3, B2 region and B3 region), apoplexy danger zone (comprises the A4 region in Fig. 3, B4 region, C1 region, C2 region, C3 region, D1 region and D2 region), medium or high risk district (comprises the A5 region in Fig. 3, B5 region, C4 region, C5 region, D3 region, D4 region, E1 region and E2 region) and high risk area (comprise the D5 region in Fig. 3, E3 region, E4 region and E5 region).When the failure consequence assessment result of a certain uphole equipment to be assessed and failure probability fall into certain position of matrix, the risk class using the value-at-risk of this position as this uphole equipment to be assessed.
If according to risk class arrangement inspection or the maintenance of uphole equipment to be assessed, then in Fig. 3 lower left corner low-risk region due to occur failure probability low, failure consequence is not serious, failure risk is also low, when a certain uphole equipment to be assessed falls into this region, does not generally need to take measures; If fall into medium or high risk or high risk zone, then this uphole equipment to be assessed should as maintenance or the key object checked.To the process of risk, can implement by the measure be shown in Table 3.
Table 3
Grade |
Risk area |
The countermeasure taked |
Ⅰ |
Low-risk district |
Risk within the acceptable range, does not need to take measures |
Ⅱ |
Medium to low-risk district |
Take the circumstances into consideration to carry out checking and making a random inspection |
Ⅲ |
Apoplexy danger zone |
Should regularly completely examine |
Ⅳ |
Medium or high risk district |
Carry out on-line monitoring and Non-Destructive Testing |
Ⅴ |
High risk area |
Take immediate steps, strengthen management and rectify and improve, eliminate accident potential |
In the utility model above-described embodiment, first uphole equipment to be assessed is determined, then for this equipment, carry out data acquisition and integration, carry out risk factors collection afterwards, identify different failure mechanisms and possible failure mode, carry out failure probability and failure consequence calculating respectively according to often kind of failure mode, calculate the value-at-risk of often kind of failure mode respectively, finally carry out overall risk calculating and sequence.The highest failure mode of risk can be obtained from overall risk calculated value.If carry out risk assessment to multiple object, also the highest evaluation object of risk can be obtained.If needed, can according to Risk Calculation value implement general plan control measure, as carried out detection service arrangement according to risk ranking (comprise the risk ranking according to equipment/device, also comprise the risk ranking according to failure mode), different measure is taked to reduce risk.
By the utility model above-described embodiment, risk assessment can be carried out to gas storage uphole equipment, analyze risk factors and the risk class of gas storage ground major equipment, and determine to detect emphasis and detection order according to risk assessment conclusion, arrange to detect plan and Measures, emphasis inspection is carried out to excessive risk equipment, the object significantly reducing inspection cost on the basis ensureing equipment safety operation can be reached.
According to the utility model above-described embodiment, processor can also comprise: collecting device, is connected with uphole equipment to be assessed, for gathering the device parameter of uphole equipment to be assessed; Fetch equipment, is connected with uphole equipment to be assessed, for reading the Default Value parameter of uphole equipment to be assessed; Comparer, is connected with collecting device and fetch equipment respectively, for compare facilities parameter and Default Value parameter, obtains comparative result; 4th sub-processor, for determining the risk factors of uphole equipment to be assessed according to comparative result.
Particularly, after determining uphole equipment to be assessed, fetch equipment obtains the Default Value parameter (as design pressure when dispatching from the factory, thickness of pipe etc. when dispatching from the factory) of this uphole equipment to be assessed, collecting device gathers current device parameter (the i.e. parameter current of equipment after work after a while of this uphole equipment to be assessed, as operating pressure, thickness of pipe etc.), comparer is by comparing device parameter and its Default Value parameter of this uphole equipment to be assessed, and the 4th sub-processor determines the concrete risk factors of this uphole equipment to be assessed.
In an optional embodiment, major risk factors as shown in table 4 can be comprised to the risk factors of gas storage uphole equipment.
Table 4
According to the utility model above-described embodiment, risk evaluating system can also comprise: display, is connected respectively with processor and recognition device, for showing risk factors corresponding to multiple uphole equipment to be assessed, failure consequence assessment result and failure probability.
Particularly, display can the risk factors of the uphole equipment to be assessed that calculates of video-stream processor, failure consequence assessment result and failure probability, so that staff can understand the risk assessment parameter of uphole equipment to be assessed easily.
In the utility model above-described embodiment, risk evaluating system can also comprise: starter gear, is connected with processor, for the work of start treatment device.
Particularly, when needing to carry out risk assessment to the uphole equipment of gas storage, can be started working, to obtain the risk assessment parameter of uphole equipment to be assessed, as risk factors, failure consequence assessment result and failure probability etc. by control processor by starter gear.
According to the utility model above-described embodiment, risk evaluating system can also comprise: signal generates equipment, is connected with processor, during for exceeding predetermined level value at risk class, generates alerting signal.
Particularly, when the risk class that processor obtains exceedes predetermined level value (as III level), signal generating apparatus generates alerting signal, so that staff takes measures to reduce risk in time.
Further, risk evaluating system can also comprise: panalarm, generates equipment connection with signal, for reporting to the police according to alerting signal.
Particularly, panalarm, after the alerting signal receiving the generation of signal generation unit, will be reported to the police according to this alerting signal.
Further, panalarm can comprise: pilot lamp, generates equipment connection with signal, for lighting when receiving alerting signal; Loudspeaker, generates equipment connection with signal, for playing alerting signal.
Particularly, panalarm can be reported to the police by pilot lamp and loudspeaker, and after receiving alerting signal, pilot lamp lights, and alerting signal play by loudspeaker, to remind staff in time.
By the utility model above-described embodiment, risk assessment can be carried out to gas storage uphole equipment, analyze risk factors and the risk class of gas storage ground major equipment, and determine to detect emphasis and detection order according to risk assessment conclusion, arrange to detect plan and Measures, emphasis inspection is carried out to excessive risk equipment, the object significantly reducing inspection cost on the basis ensureing equipment safety operation can be reached.
Above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
In above-described embodiment of the present utility model, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
The claimed risk evaluating system of the utility model and each assembly forming this risk evaluating system be all a kind of have determine shape, structure and occupy the entity products of certain space.Such as, recognition device and processor etc. are all can independent operating, the computer equipment terminal with particular hardware structure or server.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.