CN202145157U - Device for comprehensively determining machine seal leakage and leakage amount - Google Patents
Device for comprehensively determining machine seal leakage and leakage amount Download PDFInfo
- Publication number
- CN202145157U CN202145157U CN201120268948U CN201120268948U CN202145157U CN 202145157 U CN202145157 U CN 202145157U CN 201120268948 U CN201120268948 U CN 201120268948U CN 201120268948 U CN201120268948 U CN 201120268948U CN 202145157 U CN202145157 U CN 202145157U
- Authority
- CN
- China
- Prior art keywords
- leakage
- flow
- machine seal
- controller
- comparator circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
A device for comprehensively determining machine seal leakage and leakage amount comprises a first pressure sensor, a first flow sensor and a first temperature sensor which are arranged on a machine seal washing inlet pipeline, and a second pressure sensor, a second flow sensor and a second temperature sensor which are arranged on a machine seal washing outlet pipeline; the sensors on the machine seal washing inlet pipeline receives pressure, flow and temperature parameter of inlet washing water; the sensors on the machine seal washing outlet pipeline receives pressure, flow and temperature parameter of outlet washing water; the same kind of parameters of the machine seal washing inlet and outlet pipelines are compared and are input to a controller; the controller carries out calculating on the change of the parameters to determine whether seal leakage happens; if leakage happens, alarming on the seal leakage is carried out by the controller; the leakage amount of washing water of the machine seal damage is calculated according to flow change of the washing water of the inlet and outlet pipelines; and the device increases the operating safety of the whole system and has popularization value.
Description
Technical field
The utility model relates to pick-up unit, the device of leakage of especially a kind of synthetic determination machine envelope and leakage rate.
Background technology
Often run into the problem of mechanical seal leakage in the pump series products, phenomenons such as wear and leakage can appear in mechanical seal after long-time the use, can cause pump normally to move when serious.The pump of pumped (conveying) medium generally adopts double mechanical seal; The normal operating condition of pump seals wash-down water pressure opportunity should be a little more than the pump inlet pressure medium, and strict monitoring equipment envelope is leaked and the wash-down water leakage rate is extremely important, during special medias such as especially explosive in process of conveying inflammable, toxic and volatile; As carry the high-pressure ammonia pump of liquefied ammonia; The liquefied ammonia medium of carrying is special media, and not only toxic and volatile is inflammable and explosive, and very easily water-soluble; Discharge great heat after meeting water, therefore strict monitoring equipment envelope is leaked and the wash-down water leakage rate is extremely important action at once.But for the mechanical seal leakage problem of often running in the present pump series products, owing to can not in time find, in time handle, this will cause the expansion of losing.
The utility model content
To above-mentioned technical matters, the utility model provides a kind of can in time judge the synthetic determination device whether seal leakage and leakage rate thereof take place in the medium transport process.
In order to solve the problems of the technologies described above; The utility model provides the device of leakage of a kind of synthetic determination machine envelope and leakage rate; It is characterized in that; Comprise first pressure transducer, first flow sensor and first temperature sensor that are installed in machine envelope flushing inlet ductwork; And second pressure transducer, second flow sensor and second temperature sensor that are installed in machine envelope flushing export pipeline; Said first pressure transducer and second pressure transducer are connected with two of first comparator circuit respectively and compare input end, and the output terminal of this first comparator circuit is connected with the pressure signal input end of controller, and the said first flow sensor and second flow sensor are connected with two of second comparator circuit respectively and compare input end; The output terminal of this second comparator circuit is connected with the flow signal input end of controller; Said first temperature sensor and second temperature sensor are connected with two of the 3rd comparator circuit respectively and compare input end, and the output terminal of the 3rd comparator circuit is connected with the temperature signal input end of controller, and the output terminal of said controller is connected with the signal input part of displaying alarm.
The device of the utility model can compare respectively and calculated flow is crossed flow, pressure and the variation of temperature of the wash-down water of machine envelope flushing inlet ductwork and machine envelope flushing export pipeline, thereby in time judges whether to leak.When use is equipped with the pump conveying generic media of this utility model; Can judge through the fluctuations in discharge of judging import and export pipeline water whether leakage rate takes place to reveal and calculate, change also can judge whether to reveal through the pressure of judging import and export pipeline water.If pumped (conveying) medium is some special media (like a liquefied ammonia), except can judging through flow and pressure change, the temperature variation of wash-down water also can judge whether to take place seal leakage.
The device of the utility model can carry out timely alarm to the seal leakage that takes place, and according to the wash-down water leakage rate that the fluctuations in discharge of wash-down water is calculated and the damage of memory machine envelope causes, obtains the magnitude of recruitment of wash-down water during convenient for maintaining.This device has improved the safety in operation of total system, has promotional value.
Description of drawings
The theory diagram of Fig. 1 the utility model.
Embodiment
Below in conjunction with specific embodiment the utility model is done further explain.
As shown in Figure 1; The device of the utility model described synthetic determination machine envelope leakage and leakage rate; Comprise the first pressure transducer P1, first flow sensor Q1 and the first temperature sensor T1 that are installed in machine envelope flushing inlet ductwork; And the second pressure transducer P2, the second flow sensor Q2 and the second temperature sensor T2 that are installed in machine envelope flushing export pipeline; Wherein the first pressure transducer P1 is connected with the two comparison input ends of the first comparator circuit A1 respectively with the second pressure transducer P2, and the output terminal of this first comparator circuit A1 is connected with the pressure signal input end of controller; First flow sensor Q1 compares input end with two of the second comparator circuit A2 respectively with the second flow sensor Q2 and is connected, and the output terminal of this second comparator circuit A2 is connected with the flow signal input end of controller; The first temperature sensor T1 compares input end with two of the 3rd comparator circuit A3 respectively with the second temperature sensor T2 and is connected; The output terminal of the 3rd comparator circuit A3 is connected with the temperature signal input end of controller, and the output terminal of controller is connected with the signal input part of displaying alarm.
In the time of pumped (conveying) medium; Launch this device; The first pressure transducer P1 and the second pressure transducer P2 wash-down water pressure and the machine of receiver envelope flushing inlet ductwork respectively seal the wash-down water pressure that washes export pipeline; And respectively two pressure values are sent to the first comparator circuit A1 two force value are compared, first comparator circuit A1 output comparative result is to controller; The first flow sensor Q1 and the second flow sensor Q2 wash-down water flow and the machine of receiver envelope flushing inlet ductwork respectively seal the wash-down water flow that washes export pipeline; And respectively two flow numbers are sent to the second comparator circuit A2; This second comparator circuit A2 compares two flow numbers, and the output comparative result is to controller; The first temperature sensor T1 and the second temperature sensor T2 wash-down water temperature and the machine of receiver envelope flushing inlet ductwork respectively seal the wash-down water temperature of washing export pipeline; And respectively two temperatures numerical value is transferred to the 3rd comparator circuit A3; The 3rd comparator circuit A3 compares two temperatures numerical value; And export comparative result to controller, controller judges comprehensively that according to three data that receive decision method is following:
Method ⑴ Q1>> Q2, the machine envelope is damaged and is leaked, and carries out alarm, and judges the leakage rate size through both differences.
Method ⑵ P1>> P2, the machine envelope is damaged and is leaked, and wash-down water gets in the medium, carries out alarm.
Method ⑶ T2>> T1 (carrying the special media that reacts with water) like ammonia, the machine envelope is damaged and is leaked, and carries out alarm.
Above-mentioned three kinds of methods complement each other, and generally speaking, if the machine envelope is damaged, method ⑴ and method ⑵ all can be used as the standard of judgement; When carrying special media (medium that responds like water), above-mentioned three kinds of decision methods all can adopt.
The ruuning situation of mechanical seal can be monitored in real time through above-mentioned three kinds of methods, the safe operation of total system can be guaranteed fully; This method configuration is simple and direct, and utilization has the excellent popularization value flexibly.
Pump normally operation seal wash-down water pressure opportunity should be a little more than pump inlet pressure medium (precondition), both have the Medium Exchange of trace, but are not enough to influence the result of judgement.
The foregoing description of the utility model only is to give an example for what explanation the utility model was done, and is not to be the qualification to the embodiment of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation and changes.Here can't give exhaustive to all embodiments.Conspicuous variation that every technical scheme that belongs to the utility model is amplified out or change still are in the row of the protection domain of the utility model.
Claims (1)
1. a synthetic determination machine seals the device of leakage and leakage rate; It is characterized in that; Comprise first pressure transducer, first flow sensor and first temperature sensor that are installed in machine envelope flushing inlet ductwork, and second pressure transducer, second flow sensor and second temperature sensor that are installed in machine envelope flushing export pipeline; Said first pressure transducer and second pressure transducer are connected with two of first comparator circuit (A1) respectively and compare input end, and the output terminal of this first comparator circuit (A1) is connected with the pressure signal input end of controller; The said first flow sensor and second flow sensor are connected with two of second comparator circuit (A2) respectively and compare input end, and the output terminal of this second comparator circuit (A2) is connected with the flow signal input end of controller; Said first temperature sensor and second temperature sensor are connected with two of the 3rd comparator circuit (A3) respectively and compare input end, and the output terminal of the 3rd comparator circuit (A3) is connected with the temperature signal input end of controller; The output terminal of said controller is connected with the signal input part of displaying alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120268948U CN202145157U (en) | 2011-07-27 | 2011-07-27 | Device for comprehensively determining machine seal leakage and leakage amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120268948U CN202145157U (en) | 2011-07-27 | 2011-07-27 | Device for comprehensively determining machine seal leakage and leakage amount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202145157U true CN202145157U (en) | 2012-02-15 |
Family
ID=45581088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120268948U Expired - Lifetime CN202145157U (en) | 2011-07-27 | 2011-07-27 | Device for comprehensively determining machine seal leakage and leakage amount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202145157U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937530A (en) * | 2012-11-26 | 2013-02-20 | 昆山北极光电子科技有限公司 | Method for detecting blocking state of engine cooling water tank |
| CN104359628A (en) * | 2014-11-28 | 2015-02-18 | 济南大学 | Device and method for testing airtightness of test piece |
| CN104359626A (en) * | 2014-11-24 | 2015-02-18 | 山东蒙沃变速器有限公司 | Test piece air tightness detection device and method |
| CN108661891A (en) * | 2018-05-09 | 2018-10-16 | 浙江工业大学 | A kind of low cost metering diaphragm pump diaphragm breakage leakage detection method |
-
2011
- 2011-07-27 CN CN201120268948U patent/CN202145157U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937530A (en) * | 2012-11-26 | 2013-02-20 | 昆山北极光电子科技有限公司 | Method for detecting blocking state of engine cooling water tank |
| CN104359626A (en) * | 2014-11-24 | 2015-02-18 | 山东蒙沃变速器有限公司 | Test piece air tightness detection device and method |
| CN104359626B (en) * | 2014-11-24 | 2016-10-19 | 山东蒙沃变速器有限公司 | A kind of test specimen air tight test method that test specimen air tight test device realizes |
| CN104359628A (en) * | 2014-11-28 | 2015-02-18 | 济南大学 | Device and method for testing airtightness of test piece |
| CN108661891A (en) * | 2018-05-09 | 2018-10-16 | 浙江工业大学 | A kind of low cost metering diaphragm pump diaphragm breakage leakage detection method |
| CN108661891B (en) * | 2018-05-09 | 2019-07-30 | 浙江工业大学 | A kind of low cost metering diaphragm pump diaphragm breakage leakage detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202145157U (en) | Device for comprehensively determining machine seal leakage and leakage amount | |
| CN103557992B (en) | Based on the Automatic steam trap Trap inner leakage detection method that pipe surface temperature before valve detects | |
| CN203811327U (en) | Inner-leakage on-line monitoring device of valve | |
| CN103424230A (en) | Ultrasonic-based valve leakage wireless detection device and method | |
| CN106813006A (en) | A kind of monitoring system of the ball valve with soft and hard seal | |
| CN205364455U (en) | Detection apparatus for die casting die cooling system | |
| CN105181271A (en) | Relief device for pipeline leakage monitoring system performance test and testing method | |
| CN107883056B (en) | Real-time online safety valve monitoring system and safety valve leakage monitoring method | |
| CN105788681A (en) | Main steam pipeline leakage monitoring system of nuclear power station | |
| EP2537725A1 (en) | Device and method for leakage detection in a compressed air system | |
| CN102723815A (en) | System and method for detecting cooling pipeline of motor | |
| CN103851339A (en) | System and method for detecting pipeline leakage | |
| US20230204165A1 (en) | Method and System for Anomaly Detection for a Pumped Pipeline | |
| CN101408166B (en) | Automatic diagnostic method of diaphragm pump one-way valve fault and adopting apparatus thereof | |
| CN202220962U (en) | Lubricating system with pipeline leakage detecting function | |
| CN205655974U (en) | Leak testing appearance of relief valve | |
| CN212617674U (en) | Gas conveying system with function of predicting gas leakage | |
| CN103162092A (en) | Oil leakage monitoring device for petroleum pipeline | |
| CN208793045U (en) | A kind of Turbo-generator Set high pressure emergency trip module and experiement control device | |
| CN204556193U (en) | A kind of woven hose inwall pick-up unit | |
| CN207702140U (en) | Loop network leak detection apparatus | |
| CN202092233U (en) | Cavitation and temperature detection system for water supply pump | |
| CN203962353U (en) | A kind of monitoring alarm device of cracked diaphragm of diaphragm pump | |
| CN102313125A (en) | Lubricating system with pipeline leakage detection function | |
| CN204922521U (en) | Gas valve automatic checkout device that leaks gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120215 |
|
| CX01 | Expiry of patent term |