CN203586188U - Water supply system capable of automatically controlling pressure - Google Patents
Water supply system capable of automatically controlling pressure Download PDFInfo
- Publication number
- CN203586188U CN203586188U CN201320691427.1U CN201320691427U CN203586188U CN 203586188 U CN203586188 U CN 203586188U CN 201320691427 U CN201320691427 U CN 201320691427U CN 203586188 U CN203586188 U CN 203586188U
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- valve
- water supply
- water
- pipeline
- supply system
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000005259 measurement Methods 0.000 claims description 6
- 239000008400 supply water Substances 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000003197 catalytic effect Effects 0.000 description 7
- 239000002918 waste heat Substances 0.000 description 5
- 238000007670 refining Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 241000009298 Trigla lyra Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model relates to a water supply system capable of automatically controlling pressure. The water supply system is connected between a water source and a water consuming point through a pipeline. The water supply system comprises a deaerator, a water supply pump and control valves, wherein the deaerator is connected with the water source, the water supply pump is connected to the deaerator and a main water supply pipeline, and the control valves are arranged on connecting pipelines. A pump discharge pressure indicator is arranged at the front end of the main water supply pipeline, a bypass pipeline is arranged at the rear end of the main water supply pipeline and connected to the deaerator, and an automatic control valve set is arranged on the bypass pipeline. The automatic control valve set comprises an automatic control electromagnetic valve, a front electromagnetic valve hand valve, a rear electromagnetic valve hand valve and a complex line valve. The automatic control electromagnetic valve is connected with the pump discharge pressure indicator, receives measured data of the pump discharge pressure indicator and adjusts the opening degree of itself and the water flow rate of the bypass pipeline to control the water supply pressure and the feedwater quantity of the main water supply pipeline. The water supply system is simple in structure and high in automation degree, the water pressure can be adjusted in real time, and labor intensity of operators is relieved; the water supply pump can be under a safe and stable operation condition, and therefore the service life of the water supply pump is prolonged.
Description
Technical field
The utility model relates to the water work of the devices such as the RFCC of the industrial circles such as petrochemical industry, refers in particular to a kind of control valve that adopts and replaces hand valve to realize the water supply system of the automatic pressure control of feed pressure.
Background technology
The interior heat collecting device such as waste heat boiler, external warmer is that the industrial circles such as petrochemical industry are usingd water as medium, and the local waste heat of absorption plant or by combustion fuel producing steam in next life and hot water needs hot user for device other each.At petroleum chemical industry, a plurality of steam generation points such as regenerator of catalytic unit heat collector drum and flue gas waste heat recovery boiler drum share a feed pump.When oil refining apparatus is when processing different oiliness crude oil and inlet amount change, the heat more than needed that catalytic regenerator burns generation also changes thereupon, the variation that is directly proportional of each waste heat recovery drum steam production and catalysis heat more than needed, causes each drum water consumption and pressure frequent fluctuation.If feed pump regulates not in time, will cause drum to occur the accidents such as lack of water or the super Regulating Pressure of Relief Values of water supply system loine pressure, bring very large potential safety hazard to normal production.
There is many deficiencies in the water work having occurred at present, as, 1, traditional feed water system of boiler: in feedwater process, deaerated water is drawn from oxygen-eliminating device bottom by feed pump, delivers to each water device after boosting, when certain steam generation point water consumption reduces, cause feed pump outlet pressure to raise, thereby other steam generation point is raise by water pressure, operating personnel need scene to open large bypass valve, reduce pressure, otherwise, turn down bypass valve.Because on-the-spot bypass valve relies on artificial Field adjustment, bypass valve cannot change in real time and adjust according to pump discharge pressure.On-site manual regulates, and has increased labor intensity of operating staff.2, water feed pump system of waste heat boiler of converter buffering and bascule: can realize the automatic control of boiler feedwater pressure, this device is mainly to increase surge tank in Converter Residual Heat Boiler water supply system, surge tank is arranged on Converter Residual Heat Boiler feed pump outlet conduit, automatic regulating valve I is arranged on the outlet conduit of surge tank, automatic regulating valve II is arranged between surge tank and oxygen-eliminating device on bypass duct, and Pressure gauge, safety valve are arranged on surge tank.The shortcoming of this device is: one, increase surge tank, take device space, be not suitable for the compact Layout of refining catalytic device; Two, automatic regulating valve II receives signal and first by automatic regulating valve I, passes to surge tank, then passes to automatic regulating valve II by surge tank, and instrument circuit arranges complexity.3, a kind of boiler feedwater circulatory system that metallurgy industry is used: the shortcoming of this system is: it is for main line cocycle valve is according to the next automatic controlling opening of valve of the flow by this valve, bypass flow.And refining catalytic device feed pump outlet main line is installed circulating valve and cannot be realized each by water spot lack of water not, only has each with all needing to install circulating valve on water spot pipeline, could meet each by water spot lack of water not, design is complicated, is not suitable for refining catalytic device water supply system.
Summary of the invention
The purpose of this utility model is for the shortcoming existing in background technology and problem improvement and bring new ideas in addition, and a kind of water supply system of simple, automatic pressure control that security is higher is provided.
To be that structure is a kind of be connected to water source and by the water supply system between water spot by pipeline to the technical solution of the utility model, comprise the oxygen-eliminating device being connected with water source, be connected to the feed pump on oxygen-eliminating device and service main road and be arranged on each by-pass valve control on connecting line, wherein:
Service main road front end is provided with pump discharge pressure indication, and rear end, service main road is established a bypass line and is connected to oxygen-eliminating device, is provided with autocontrol valve group on bypass line;
Described autocontrol valve group comprises automatic control electric magnet valve, magnetic valve front and back hand valve and multiple line valve; Wherein automatic control electric magnet valve connects and receives pump discharge pressure indication measurement data, and regulates self aperture and bypass line discharge to control service main road pressure of supply water and confluent.
Advantage of the present utility model and beneficial effect:
The utility model is simple in structure, automaticity is high, realizes the real-time adjustment of feed pressure, has alleviated labor intensity of operating staff; And feed pump safely and steadily runs operating mode in one, can effectively extend the service life of feed pump; Simultaneously can make feed pump outlet pressure be stabilized in setting value, guarantee that lack of water and the attached safety valve of water point device normally do not use with water spot for each.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
As shown in Figure 1, the utility model is connected to water source by pipeline and with between water spot, comprises the oxygen-eliminating device 1 being connected with water source, and be connected to the feed pump 2 on oxygen-eliminating device 1 and service main road 11 and be arranged on each by-pass valve control on connecting line, wherein:
Service main road 11 front ends are provided with pump discharge pressure indication 6, and 11 rear ends, service main road are established a bypass line 10 and are connected to oxygen-eliminating device 1, are provided with autocontrol valve group on bypass line 10;
Described autocontrol valve group comprises automatic control electric magnet valve 7, magnetic valve front and back hand valve 8 and multiple line valve 9; Wherein automatic control electric magnet valve 7 connects and receives pump discharge pressure and indicates 6 measurement data, and regulates self aperture and bypass line 10 discharges to control service main road 11 pressure of supply waters and confluent.
Before and after magnetic valve described in the utility model, hand valve 8 arranges two on the forward and backward pipeline of automatic control electric magnet valve 7.Described multiple line valve 9 is arranged in parallel by pipeline and automatic control electric magnet valve 7.Described oxygen-eliminating device 1 connects the oral siphon of feed pump 2 by pipeline, be provided with inlet valve 3 on its pipeline.Described 11 one end, service main road connect the outlet pipe of feed pump 2, and the other end connects each with water spot, wherein on outlet pipe and service main road 11, between the measurement point of pump discharge pressure indication 6, is provided with outlet check valve 4 and outlet valve 5.
Structural principle of the present utility model:
The utility model comprises oxygen-eliminating device 1, feed pump 2 and an automatic control piper of feed pressure, wherein: the oral siphon of feed pump 2 is connected with oxygen-eliminating device 1, and oral siphon has inlet valve 3; The outlet pipe of feed pump 2 has outlet check valve 4, outlet valve 5 and pump discharge pressure indication 6.The automatic control piper of feed pressure is drawn and is back to oxygen-eliminating device 1 after pump discharge pressure indication 6; Pressure automatic control pipeline has one group of autocontrol valve group, this autocontrol valve group comprises automatic control electric magnet valve 7, magnetic valve front and back hand valve 8 and multiple line valve 9, automatic control electric magnet valve 7 is controlled the aperture of self according to pump discharge pressure indication 6, pump discharge pressure is regulated.When pump discharge pressure indication 6 increases, automatic control electric magnet valve 7 is augmented flow automatically, effectively reduces the pressure at described pump discharge place.The boiler feedwater control pressurer system of this structure has higher security.The utility model autocontrol valve group is arranged on the pipeline that exit of pump returns to oxygen-eliminating device 1, and pressure measurement point is arranged on exit of pump to on the pipeline of water spot, by pump discharge pressure, indicates 6 measurement point pressure feedback, acts on the action of control valve.
The utility model specific embodiment:
Embodiment 1: as Fig. 1, when processing oiliness is changed to compared with heavy crude oil by light oil, catalytic unit heat more than needed is higher.Steam generation is put desirable heat and is increased, and water consumption increases thereupon.Pump water pressure indication 6 demonstrations and reduce, by automatic control electric magnet valve 7, turn down the flow that returns to oxygen-eliminating device 1, improve service main road 11 force value.In the constant situation of feed pump 2 outlet total flows, bypass line 10 flows reduce until close, and service main road 11 flows increase, and reach each with the requirement of water spot consumption.
Embodiment 2: as Fig. 1, when processing oiliness is when being changed to light crude compared with heavy oil, catalytic unit heat more than needed reduces.Steam generation is put desirable heat and is reduced, and water consumption reduces thereupon.Pump water pressure indication 6 and show increase, by automatic control electric magnet valve 7, open the flow that returns to greatly oxygen-eliminating device 1, reduce service main road 11 force value.In the constant situation of feed pump 2 outlet total flows, bypass line 10 flows are opened large until standard-sized sheet, and service main road 11 flows reduce thereupon, each is met the demands with water spot consumption, and be no more than water point device Regulating Pressure of Relief Values value.
Embodiment described in the utility model is only the description that preferred embodiment of the present utility model is carried out; not the utility model design and scope are limited; do not departing under the prerequisite of the utility model design philosophy; various modification and improvement that in this area, engineers and technicians make the technical solution of the utility model; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection, is all documented in claims.
Claims (5)
1. the water supply system of an automatic pressure control, by pipeline, be connected to water source and with between water spot, comprise the oxygen-eliminating device (1) being connected with water source, be connected to the feed pump (2) on oxygen-eliminating device (1) and service main road (11) and be arranged on each by-pass valve control on connecting line, it is characterized in that:
Service main road (11) front end is provided with pump discharge pressure indication (6), and rear end, service main road (11) is established a bypass line (10) and is connected to oxygen-eliminating device (1), and bypass line is provided with autocontrol valve group on (10);
Described autocontrol valve group comprises automatic control electric magnet valve (7), magnetic valve front and back hand valve (8) and multiple line valve (9); Wherein automatic control electric magnet valve (7) connects and receives pump discharge pressure indication (6) measurement data, and regulates self aperture and bypass line (10) discharge to control service main road (11) pressure of supply water and confluent.
2. the water supply system of automatic pressure control according to claim 1, is characterized in that described magnetic valve front and back hand valves (8) arrange two on the forward and backward pipeline of automatic control electric magnet valve (7).
3. the water supply system of automatic pressure control according to claim 1, is characterized in that described multiple line valve (9) is arranged in parallel by pipeline and automatic control electric magnet valve (7).
4. the water supply system of automatic pressure control according to claim 1, is characterized in that described oxygen-eliminating device (1) connects the oral siphon of feed pump (2) by pipeline, be provided with inlet valve (3) on its pipeline.
5. the water supply system of automatic pressure control according to claim 1, it is characterized in that described one end, service main road (11) connects the outlet pipe of feed pump (2), the other end connects each with water spot, wherein between the measurement point of the upper pump discharge pressure indications in outlet pipe and service main road (11) (6), is provided with outlet check valve (4) and outlet valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320691427.1U CN203586188U (en) | 2013-11-05 | 2013-11-05 | Water supply system capable of automatically controlling pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320691427.1U CN203586188U (en) | 2013-11-05 | 2013-11-05 | Water supply system capable of automatically controlling pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203586188U true CN203586188U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320691427.1U Expired - Lifetime CN203586188U (en) | 2013-11-05 | 2013-11-05 | Water supply system capable of automatically controlling pressure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203586188U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613460A (en) * | 2015-02-02 | 2015-05-13 | 华北电力科学研究院有限责任公司 | Medium-pressure water supply system for fuel gas thermal power plant and start and stop method thereof |
| CN105627292A (en) * | 2016-03-14 | 2016-06-01 | 国电长源汉川第一发电有限公司 | Boiler circulating heating system and method for boiler water |
| CN110397909A (en) * | 2019-08-20 | 2019-11-01 | 华能国际电力股份有限公司 | Feed-water feed-forward control system and method based on recirculation valve state of feed-water pump |
| CN114295405A (en) * | 2022-01-06 | 2022-04-08 | 国家能源集团国源电力有限公司 | Water supply pump boosting test device and method |
-
2013
- 2013-11-05 CN CN201320691427.1U patent/CN203586188U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613460A (en) * | 2015-02-02 | 2015-05-13 | 华北电力科学研究院有限责任公司 | Medium-pressure water supply system for fuel gas thermal power plant and start and stop method thereof |
| CN105627292A (en) * | 2016-03-14 | 2016-06-01 | 国电长源汉川第一发电有限公司 | Boiler circulating heating system and method for boiler water |
| CN110397909A (en) * | 2019-08-20 | 2019-11-01 | 华能国际电力股份有限公司 | Feed-water feed-forward control system and method based on recirculation valve state of feed-water pump |
| CN114295405A (en) * | 2022-01-06 | 2022-04-08 | 国家能源集团国源电力有限公司 | Water supply pump boosting test device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |