CN202673797U - Seal flush monitoring device for high-temperature pump - Google Patents
Seal flush monitoring device for high-temperature pump Download PDFInfo
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- CN202673797U CN202673797U CN 201220270885 CN201220270885U CN202673797U CN 202673797 U CN202673797 U CN 202673797U CN 201220270885 CN201220270885 CN 201220270885 CN 201220270885 U CN201220270885 U CN 201220270885U CN 202673797 U CN202673797 U CN 202673797U
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Abstract
A seal flush monitoring device for a high-temperature pump comprises an oil station. A pressure transmitter, a temperature transmitter and a pressure switch are mounted on an outlet pipe of the oil station and are connected with a controlling device. The oil station comprises an oil tank and a pump, a pump inlet is provided with a filter, a pump outlet is provided with an overflow valve and a self-reliance regulating valve and is connected with an oil station outlet via a cooler, the oil station outlet is connected with 1-10 front-pump local panels via valves, each of the front-pump local panels connected in parallel comprises a reducing valve, an adjustable throttle valve, a one-way valve gear meter with a pulse transmitting device, a temperature displaying meter and a pressure displaying meter. Outlets of the front-pump local panels are connected with a high-temperature pump seal, return oil of the high-temperature pump seal is connected with the oil tank via the front-pump local panels, the valves and the filter. The seal flush monitoring device for the high-temperature pump is safe, reliable and easy to maintain, and is applicable to seal flushing and leakage monitoring for high-temperature oil pumps in the petrochemical industry.
Description
Technical field
The utility model relates to a kind of high temperature pump and sealflushes monitoring device, particularly a kind of the sealflushing of high temperature oil pump in the petroleum chemical industry, leakage monitor of being applicable to.
Background technique
At present, the sealflushing of high temperature oil pump, leakage monitor in petroleum chemical industry, mainly contain plan32+53A or plan32+52, wherein plan32 injects oil sealing toward the pump stuffing box, effect is to improve the pump seal condition, is equivalent to high temperature, full-bodied sealing medium are become lower temperature and the good medium of lubrication state.The below does an introduction with regard to high temperature oil pump sealing flusher plan53A, plan52 and plan54.
Plan53A is the obstruction liquid that is higher than pump stuffing box pressure toward injection pressure between two sealing surfaces of tandem or Double End bellows mechanical seal, effect be take away two between the seal face heat, when the media end seal failure, can only block liquid leaks in pump, can not allow the interior medium of pump spill, guarantee can not cause fire accident when high temperature pump leaks; During the seal failure of shaft seal end, block liquid and leak outside.Plan53A sealing system critical piece, instrument have: pressure vessel, nitrogen reduction valve, pressure switch, liquid-level switch, pressure gauge etc.The plan53A scheme has sealing technique maturation, reliable advantage, shortcoming is to need nitrogen pressurization and configuration nitrogen reduction valve, need the frequent repairing of operator or storage tank, pump composition oil-supplementing system are set, pressure vessel, nitrogen reduction valve, pressure switch, liquid-level switch, pressure gauge etc. are arranged around pump.Be densely covered with nitrogen line, repairing line, cooling water pipeline, pressure vessel on the pressure vessel to the DN15 pipeline of sealing, corresponding valve, pressure switch and liquid-level switch cable, have 6 pipelines and 2 cables, increase a lot of static seal points, bring a lot of difficulties to field maintenance.
The plan32+52 configuration is similar to the plan53A scheme, is similarly tandem metal bellows integrated mechanical sealing, and difference is that storage tank is atmospheric storage tank, and storage tank is normal pressure for sealing provides sealing liquid.When inboard primary seal lost efficacy, easily produce Plan32 oil sealing and high temperature media and be mixed into atmospheric storage tank, this scheme is lower than 300 ℃ in temperature, during non-petroleum pump use more suitable, in the High Temperature and Heavy Oil pump, do not recommend this scheme.
Plan32+54, the sealing that configures in pump is identical with the plan53A scheme, different is the flushing of obstruction liquid, the cooling system that need not be comprised of the pump efficiency wheel of cooling coil, sealing in nitrogen, pressure vessel, the pressure vessel, but provides external blocking liquid system by independent petrol station for many pumps.
The model utility content
Its purpose of the utility model just is to provide that a kind of high temperature pump is sealflushed, leakage monitor, has safety, reliable, and the characteristics of sensitive, easy care are applicable to the sealflushing of high temperature oil pump in the petroleum chemical industry, leakage monitoring.
The technological scheme that realizes above-mentioned purpose and take, comprise petrol station, the pressure transmitter, temperature transmitter, the pressure switch that are installed on the petrol station outlet line are connected with control gear, described petrol station comprises fuel tank, pump, and pump inlet is provided with filter, and pump discharge is provided with relief valve and direct-operated regulator, pump discharge is connected to the petrol station outlet through cooler, described petrol station outlet local panel before valve connects pump, local panel is 1 ~ 10 before the pump, is connected in parallel; Local panel comprises adjustable restrictive valve, reduction valve, the first gear meter, the second gear meter, one-way valve, temperature display meter and pressure display instrument table before the described pump; The local panel outlet connects the high temperature pump sealing before the pump, and high temperature pump sealing oil return local panel, valve and filter before pump are connected fuel tank 4.
Compared with prior art the utlity model has following advantage.
1) only have 2 DN10 Stainless Steel Tubes of turnover in the every cover sealing of pump, on-the-spot clean and tidy.
2) by the tape pulse transmitter installation gear meter---seal leakage detection, alarm system that PLC forms have characteristics highly sensitive, that real-time good, reliability is high.
3) main hydraulic, control system are concentrated and are integrated, convenient inspection, maintenance.
4) rinse-system of pump circulation will very effectively reduce the Seal cage temperature, can reduce the outer flushing oil amount in the plan32 scheme, and preferably economic benefit is arranged.
5) recycle oil of the rinse-system of pump circulation can adopt the lubricant oil (needing to filter) that large-scale unit changes, and almost can not spend; In addition, take the rinse-systems of the pump circulation of 10 cover sealings as example, the power of recycle pump is about 3kw, and year power consumption is also just about 30,000 degree, and to move be most economical to other backwashing manners relatively; Relatively can reduce cost with the plan53A scheme.
6) high temperature oil pump sealing circle irrigation system petrol station is comprised of double pump, two oil cooler, twin filter etc., has automatic startup and pays pump, automatic regulating system pressure, automatic demonstration, warning function, and is very reliable.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing 1 is the principle schematic of this device.
Embodiment
This device comprises petrol station 1, the pressure transmitter, temperature transmitter, the pressure switch that are installed on petrol station 1 outlet line are connected with control gear 3, as shown in drawings, described petrol station 1 comprises fuel tank 4, pump 6, and pump 6 imports are provided with filter 5, and pump 6 outlets are provided with relief valve 7 and direct-operated regulator 12, pump 6 outlets are connected to petrol station 1 outlet through cooler 11, described petrol station 1 outlet local panel 2 before valve 13 connects pump, local panel 2 is 1 ~ 10 before the pump, is connected in parallel; Local panel 2 comprises adjustable restrictive valve 15, reduction valve 16, the first gear meters 17, the second gear meter 19, one-way valve 23, temperature display meter 21 and pressure display instrument table 22 before the described pump; Local panel 2 outlets connect high temperature pumps sealing 24 before the pump, and high temperature pump seals 24 oil returns local panel 2, valve 14 before pump and is connected with filter and connects fuel tank 4.
Described the first gear meter 17 and the second gear meter 19 are with pulse transmitter 18,20.
Described pump 6, filter 5, relief valve 7 respectively are provided with two, the rear direct-operated regulator 12 that connects in parallel.
Described cooler 11 is provided with two, and for being connected in parallel, two nodes that are connected in parallel are provided with tee ball valve 10, is provided with between described two tee ball valves 10 to switch connecting rod 9.
Described control gear 3 can be PLC control gear or DCS system.
Described fuel tank 4 is provided with high-order drain 8 and nitrogen interface 25.
This device by hydraulic oil unit, pump before local panel and composition of the control system.Wherein hydraulic oil unit is comprised of double pump, two oil cooler, twin filter, double damper valve etc., has automatic startup auxiliary pump, automatically regulates the functions such as the high warning of sealing liquid pressure, each pump flushing oil flow of centralized displaying, seal leakage warning, oil temperature.Hydraulic oil unit by pump before local panel be higher than the obstruction liquid of pump stuffing box pressure toward injection pressure between two sealing surfaces of tandem or Double End bellows mechanical seal, the circulation and take away two between the seal face heat, when the media end seal failure, blocking liquid leaks in pump, do not allow the interior medium of pump spill, guarantee can not cause fire accident when high temperature pump leaks; During the seal failure of shaft seal end, block liquid and leak outside.Local panel is comprised of pressure gauge, flowmeter, throttle valve, one-way valve, reduction valve, valve, thermometer, has the pump circulation flushing, regulates, shows flushing flow rate, the function of monitoring leakage.
A hydraulically controlled oil station can provide the flushing oil of the pump circulation of maximum 10 high temperature oil pumps in the device, and local panel is one of every suit sealing or each pump seal before each pump.When any pump maintenance, close this pump local panel and get final product, can not affect whole system.
Jumbo fuel tank on the hydraulically controlled oil station, guarantee that any pump leakage can not make oil tank liquid level drop to alarming line yet more than 1 hour, pump discharge relief valve and self-supporting regulation valve decomposition pressure regulating system, the duplex oil cooler cools off the flushing oil of pump circulation, the DCS system that is installed in pressure transmitter, temperature transmitter, pressure switch and PLC on the outlet line or device form the flushing oil pressure of pump circulation, temperature demonstration, report to the police and from opening the auxiliary pump function.
The throttle valve of local panel is used for regulating the flushing oil flow of pump circulation before the pump, and when one-way valve was guaranteed the low or fault termination of pumping of hydraulic control station outlet pressure, the medium in the high temperature oil pump can not flow back to fuel tank; The reduction valve of regulating the front local panel of this pump can be regulated the pressure of this pump pump circulation flushing oil.
Two gear meters of local panel are contained in the import and export of high temperature pump sealing before the pump, can detect real-time and accurately the flushing oil flow of turnover high temperature pump sealing place, detected flow converts the PLC that umber of pulse sends to control system to by pulse transmitter and processes, pass through the cumulative and comparison of certain hour section, can detect exactly the slight change of turnover high temperature pump sealing place flushing oil flow, thereby judge whether the high temperature pump sealing has leakage, if leakage is arranged, system will report to the police.
Flame-proof type is made, explosion-proof sign d II BT5 by the pertinent regulations of standard GB/T 3836 ﹒ 2-2000 " explosive atmosphere electric apparatus for explosive atmospheres flameproof electrical apparatus " d " " by this actuator.Can be used for petrochemical enterprise and have the place that II B level T1-T5 group explosive gas mixture exists, the inspection agency of this national appointment of flame-proof type device is up to the standards.
Claims (7)
1. a high temperature pump is sealflushed monitoring device, comprise petrol station (1), be installed in the pressure transmitter on petrol station (1) outlet line, temperature transmitter, pressure switch is connected with control gear (3), it is characterized in that, described petrol station (1) comprises fuel tank (4), pump (6), pump (6) import is provided with filter (5), pump (6) outlet is provided with relief valve (7) and direct-operated regulator (12), pump (6) outlet is connected to petrol station (1) outlet through cooler (11), described petrol station (1) outlet local panel (2) before valve (13) connects pump, local panel (2) is 1 ~ 10 before the pump, is connected in parallel; Local panel (2) comprises adjustable restrictive valve (15), reduction valve (16), the first gear meter (17), the second gear meter (19), one-way valve (23), temperature display meter (21) and pressure display instrument table (22) before the described pump; Front local panel (2) outlet of pump connects high temperature pump sealing (24), and high temperature pump sealing (24) oil return local panel (2), valve (14) before pump are connected 27 with filter) connection fuel tank (4).
2. a kind of high temperature pump according to claim 1 is sealflushed monitoring device, it is characterized in that, described the first gear meter (17) and the second gear meter (19) are with pulse transmitter.
3. root a tree name a kind of high temperature pump claimed in claim 1 is sealflushed monitoring device, it is characterized in that, described pump (6), filter (5), relief valve (7) respectively are provided with two, the rear direct-operated regulator (12) that connects in parallel.
4. root a tree name a kind of high temperature pump claimed in claim 1 is sealflushed monitoring device, it is characterized in that, described cooler (11) is provided with two, for being connected in parallel, two nodes that are connected in parallel are provided with tee ball valve, are provided with the switching connecting rod between described two tee ball valves.
5. root a tree name a kind of high temperature pump claimed in claim 1 is sealflushed monitoring device, it is characterized in that, described control gear (3) can be PLC control gear or DCS system.
6. root a tree name a kind of high temperature pump claimed in claim 1 is sealflushed monitoring device, it is characterized in that, described fuel tank (4) is provided with high-order drain (8) and nitrogen interface (25).
7. root a tree name a kind of high temperature pump claimed in claim 1 is sealflushed monitoring device, it is characterized in that, local panel (2) return filter (27) is provided with two before the described pump, and for being connected in parallel, the node that is connected in parallel is provided with tee ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270885 CN202673797U (en) | 2012-06-11 | 2012-06-11 | Seal flush monitoring device for high-temperature pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270885 CN202673797U (en) | 2012-06-11 | 2012-06-11 | Seal flush monitoring device for high-temperature pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673797U true CN202673797U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220270885 Expired - Fee Related CN202673797U (en) | 2012-06-11 | 2012-06-11 | Seal flush monitoring device for high-temperature pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673797U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900377A (en) * | 2015-06-17 | 2015-09-09 | 山东电力设备有限公司 | Device for automatically controlling flushing of transformer cooler |
| CN104950789A (en) * | 2015-06-17 | 2015-09-30 | 山东电力设备有限公司 | Method for controlling automatic flushing of transformer cooler |
| CN109794465A (en) * | 2019-02-25 | 2019-05-24 | 昆山奥兰克泵业制造有限公司 | Formula mechanical pump cleaning system is not shut down online |
| CN110735926A (en) * | 2019-10-16 | 2020-01-31 | 无锡市伊利亚特机械制造有限公司 | sealing system |
| CN111828343A (en) * | 2020-07-29 | 2020-10-27 | 杨煜海 | Anti-leakage submersible pump |
-
2012
- 2012-06-11 CN CN 201220270885 patent/CN202673797U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900377A (en) * | 2015-06-17 | 2015-09-09 | 山东电力设备有限公司 | Device for automatically controlling flushing of transformer cooler |
| CN104950789A (en) * | 2015-06-17 | 2015-09-30 | 山东电力设备有限公司 | Method for controlling automatic flushing of transformer cooler |
| CN104900377B (en) * | 2015-06-17 | 2017-10-13 | 山东电力设备有限公司 | A kind of device that flushing is automatically controlled to transformer cooler |
| CN104950789B (en) * | 2015-06-17 | 2018-01-19 | 山东电力设备有限公司 | A kind of control method to transformer cooler auto-flushing |
| CN109794465A (en) * | 2019-02-25 | 2019-05-24 | 昆山奥兰克泵业制造有限公司 | Formula mechanical pump cleaning system is not shut down online |
| CN110735926A (en) * | 2019-10-16 | 2020-01-31 | 无锡市伊利亚特机械制造有限公司 | sealing system |
| CN111828343A (en) * | 2020-07-29 | 2020-10-27 | 杨煜海 | Anti-leakage submersible pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20130611 |