CN205481240U - Novel series connection heat supply network drainage system - Google Patents
Novel series connection heat supply network drainage system Download PDFInfo
- Publication number
- CN205481240U CN205481240U CN201521114261.2U CN201521114261U CN205481240U CN 205481240 U CN205481240 U CN 205481240U CN 201521114261 U CN201521114261 U CN 201521114261U CN 205481240 U CN205481240 U CN 205481240U
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- hydrophobic
- supply network
- district heating
- heat exchangers
- heat supply
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Abstract
The utility model belongs to the technical field of thermal power especially relates to the cogeneration of heat and power, concretely relates to novel series connection heat supply network drainage system, including high -pressure heating network heater, the electronic isolating valve I who stops the function in having is installed additional in high pressure heating network heater's hydrophobic export, it is hydrophobic through the hydrophobic female pipe of electronic isolating valve I collection to high -pressure heating network heater export, through adjusting valve group, get into low pressure heating network heater respectively, the electronic isolating valve II of function during installing additional and have, low pressure heating network heater's hydrophobic export stops, hydrophobicly converge to the hydrophobic female pipe of low pressure heating network heater export through electronic isolating valve II, the subdividing do not gets into the heat supply network drainage pump, step up after cross water level regulating valve group and two the hydrophobic hydraulic budget adjusting valve of unit groups of the export of heat supply network drainage pump, realize the hydrophobic thin oxygen -eliminating device to two units respectively of heating network heater. Adopt neotype series connection heat supply network drainage system, reduce high -pressure heating network heater's lectotype, the manufacturing degree of difficulty and cost, improve the economic benefits of unit.
Description
Technical field
This utility model belongs to thermal power generating technology field, particularly relates to cogeneration of heat and power technical field, is specifically related to a kind of novel series connection heat supply network draining system.
Background technology
Under the overall background of energy-saving and emission-reduction, each thermal power generation corporations are all carrying out the comprehensive upgrading of energy-saving and emission-reduction at present, and idea manages to reduce the operating index such as unit generation coal consumption and station service power consumption rate, improves the economic benefit of unit further.Therefore, in current thermal power plant pure condensate unit heat supply transformation, a lot of power plant have employed back pressure type small turbine and drive the technical scheme of circulation pump of heat-supply network, save station service consumption.In this scenario, heating system is provided with high pressure heat exchangers for district heating and low pressure heat exchangers for district heating, the vapour source of high pressure heat supply network vapour uses the upper punching of steam turbine mesolow communicating pipe to draw gas, the steam discharge of the back pressure type small turbine of self-driven circulation pump of heat-supply network is carried out in low pressure heat exchangers for district heating vapour source, high and low pressure heat exchangers for district heating draining system often uses parallel system, is divided into high pressure heat supply network heater condensate section and low pressure heat exchangers for district heating hydrophobic section.The hydrophobic of high pressure heat exchangers for district heating imports high pressure heat supply network heater-drip pump import mother pipe after respective motor-operated isolation valve, the hydrophobic of low pressure heat exchangers for district heating imports low pressure heat exchangers for district heating import mother pipe after respective motor-operated isolation valve, two sections hydrophobic boosts respectively through respective heat exchangers for district heating drainage pump (speed governing) (being divided into high pressure heat supply network heater-drip pump, low pressure heat exchangers for district heating drainage pump), regulate valve group after converge to the hydrophobic female pipe of same outlet, it is respectively led into the oxygen-eliminating device of two units again, working medium and heat are reclaimed.
Use this heat exchangers for district heating draining system, the vapour source of high pressure heat exchangers for district heating is owing to drawing gas from mesolow communicating pipe, parameter is the highest, domestic 300MW, 600MW pure condensate unit mesolow communicating pipe extraction pressure is about between 0.6～1.2MPa, corresponding hydrophobic saturation temperature is about at 160 DEG C～180 DEG C, more conventional heat exchangers for district heating exceeds a lot, in order to maximally utilize the heat drawn gas, need to reduce high pressure heat exchangers for district heating lower end as far as possible poor, add manufacture difficulty and the cost of high pressure heat exchangers for district heating, use height simultaneously, low pressure heat exchangers for district heating parallel connection draining system, the number of units making drainage pump is greatly increased, add the complexity of system, also increase equipment investment.
Utility model content
The technical problems to be solved in the utility model is: the higher heater manufacture difficulty caused of drain temperature and the increase of cost when currently used high parameter steam is directly used in high pressure heat exchangers for district heating heat exchange, for solving the problems referred to above, it is provided that a kind of novel series connection heat supply network draining system.
The purpose of this utility model is achieved in that
A kind of novel series connection heat supply network draining system, including high pressure heat exchangers for district heating, the hydrophobic outlet of high pressure heat exchangers for district heating install additional with in stop the motor-operated isolation valve I of function, hydrophobic through the hydrophobic female pipe of motor-operated isolation valve I remittance to high pressure heat exchangers for district heating outlet, through control valve group, respectively enter low pressure heat exchangers for district heating, the hydrophobic outlet of low pressure heat exchangers for district heating install additional with in stop the motor-operated isolation valve II of function, hydrophobic through the hydrophobic female pipe of motor-operated isolation valve II remittance to low pressure heat exchangers for district heating outlet, respectively enter heat supply network drainage pump again, through level control valve door group and two unit hydrophobic water balance control valve groups of the outlet of heat supply network drainage pump after boosting, realize the hydrophobic oxygen-eliminating device dredged respectively to two units of heat exchangers for district heating.
High pressure heat exchangers for district heating is at least one, and the hydrophobic outlet of high pressure heat exchangers for district heating is provided with motor-operated isolation valve I.
Low pressure heat exchangers for district heating is at least two, and the hydrophobic outlet of each low pressure heat exchangers for district heating is both provided with motor-operated isolation valve II.
The control valve group of regulation high pressure heat supply network heater water level is added on the female pipe of hydrophobic outlet of high pressure heat exchangers for district heating.
Heat supply network drainage pump is that at least two is arranged in parallel.
Wherein equipped with hydrophobic water balance control valve group on the arm of an oxygen-eliminating device.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, this utility model is by using novel series connection heat supply network draining system in transforming in heat supply, reduces the requirement to drain approach of the high pressure heat exchangers for district heating, reduces type selecting difficulty, manufacture difficulty and the cost of high pressure heat exchangers for district heating, improves the economic benefit of unit.
2, this utility model is by using novel series connection heat supply network draining system, eliminates high pressure heat supply network heater-drip pump, improves the configuration of drainage pump, greatly reduce construction investment.
3, this utility model simplifies draining system, reduces the requirement controlling operation, improves the safety that draining system runs.
Accompanying drawing explanation
Fig. 1 is theory structure schematic diagram of the present utility model.
Fig. 2 is the heat supply network draining system in parallel before improving.
Wherein, 1 is high pressure heat exchangers for district heating；2 is low pressure heat exchangers for district heating；3 is heat supply network drainage pump；4 is control valve group；5 is level control valve door group；6 is water balance control valve group；7 is motor-operated isolation valve I；8 is motor-operated isolation valve II.
Detailed description of the invention
As shown in Figure 1, this utility model is a kind of novel series connection heat supply network draining system, it it is a kind of improvement to heat supply network draining system in parallel, including high pressure heat exchangers for district heating 1, low pressure heat exchangers for district heating 2, heat supply network drainage pump 3, hydrophobic 5, two the unit hydrophobic water balance control valve groups 6 of level control valve door group exported to low pressure heat exchangers for district heating control valve group 4, heat supply network drainage pump 3 of high pressure heat exchangers for district heating 1, pipeline and other related valve, adnexa etc..
The hydrophobic outlet of described high pressure heat exchangers for district heating 1 install additional with in stop the motor-operated isolation valve I7 of function, remittance to high pressure heat exchangers for district heating 1 exports hydrophobic female pipe, through control valve group 4, respectively enter low pressure heat exchangers for district heating 2, the hydrophobic outlet of low pressure heat exchangers for district heating 2 install additional with in stop the motor-operated isolation valve II8 of function, remittance to low pressure heat exchangers for district heating 2 exports hydrophobic female pipe, respectively enter heat supply network drainage pump 3 again, through level control valve door group 5 and two unit hydrophobic water balance control valve groups 6 of heat supply network drainage pump 3 outlet after boosting, realize the hydrophobic oxygen-eliminating device dredged respectively to two units of heat exchangers for district heating, working medium and heat are reclaimed, improve the economic benefit of unit.
Wherein, the number of high pressure heat exchangers for district heating 1 is designed type selecting according to the number of heating demand, can arrange one or more；
2 number at least two of low pressure heat exchangers for district heating, prevent when low pressure heat exchangers for district heating 2 fault, pumps for hot water supply net back pressure type little steam turbine steam discharge does not has place to go, pumps for hot water supply net is caused to stop transport, affect unit heat supply, two or more low pressure heat exchangers for district heating 2 can be set according to the displacement size of the little steam turbine of pumps for hot water supply net back pressure type；
The motor-operated isolation valve I7 of function is stopped, it is possible to achieve the water level of each high pressure heat exchangers for district heating 1 is individually finely tuned in；
The motor-operated isolation valve II8 of function is stopped, it is possible to achieve the water level of each low pressure heat exchangers for district heating 2 is individually finely tuned in；
Heat supply network drainage pump 3, can carry out Selection and Design according to the size of the hydrophobic amount of heat exchangers for district heating, at least provided with two or multiple stage；
Heat supply network drainage pump 3 exports female pipe and is provided with level control valve door group 5；
Equipped with hydrophobic water balance control valve group 6 on the arm of a wherein unit oxygen-eliminating device in two units of the hydrophobic entrance of described heat supply network, #1 unit or #2 unit can be contained in.
Can be seen that, this utility model (such as Fig. 1) and conventional art (such as Fig. 2) difference be high pressure heat exchangers for district heating 1 hydrophobic no longer separately through high pressure heat supply network drainage pump 1 boost after with low pressure heat exchangers for district heating 2 hydrophobic separately through low pressure heat exchangers for district heating drainage pump boost after the oxygen-eliminating device dredged again to two units in parallel, but high pressure heat exchangers for district heating 1 is hydrophobic step by step from flowing to low pressure heat exchangers for district heating 2, the hydrophobic parallel way that no longer uses of high and low pressure heat exchangers for district heating, but use series system.This novel hydrophobic mode of series connection heat supply network, eliminates high pressure heat supply network heater-drip pump, improves the configuration of drainage pump, greatly reduce construction investment；Meanwhile, also reduce the high pressure heat exchangers for district heating 1 requirement to drain approach, reduce type selecting difficulty, manufacture difficulty and the cost of high pressure heat exchangers for district heating 1, simplify draining system, reduce the requirement that operation is controlled, improve the safety that draining system runs.
Claims (6)
1. a novel series connection heat supply network draining system, it is characterized in that: include high pressure heat exchangers for district heating, the hydrophobic outlet of high pressure heat exchangers for district heating install additional with in stop the motor-operated isolation valve I of function, hydrophobic through the hydrophobic female pipe of motor-operated isolation valve I remittance to high pressure heat exchangers for district heating outlet, through control valve group, respectively enter low pressure heat exchangers for district heating, the hydrophobic outlet of low pressure heat exchangers for district heating install additional with in stop the motor-operated isolation valve II of function, hydrophobic through the hydrophobic female pipe of motor-operated isolation valve II remittance to low pressure heat exchangers for district heating outlet, respectively enter heat supply network drainage pump again, through level control valve door group and two unit hydrophobic water balance control valve groups of the outlet of heat supply network drainage pump after boosting, realize the hydrophobic oxygen-eliminating device dredged respectively to two units of heat exchangers for district heating.
One the most according to claim 1 novel series connection heat supply network draining system, it is characterised in that: high pressure heat exchangers for district heating is at least one, and the hydrophobic outlet of high pressure heat exchangers for district heating is provided with motor-operated isolation valve I.
One the most according to claim 1 novel series connection heat supply network draining system, it is characterised in that: low pressure heat exchangers for district heating is at least two, and the hydrophobic outlet of each low pressure heat exchangers for district heating is both provided with motor-operated isolation valve II.
One the most according to claim 1 novel series connection heat supply network draining system, it is characterised in that: add the control valve group of regulation high pressure heat supply network heater water level on the female pipe of hydrophobic outlet of high pressure heat exchangers for district heating.
One the most according to claim 1 novel series connection heat supply network draining system, it is characterised in that: heat supply network drainage pump is that at least two is arranged in parallel.
One the most according to claim 1 novel series connection heat supply network draining system, it is characterised in that: wherein equipped with hydrophobic water balance control valve group on the arm of an oxygen-eliminating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114261.2U CN205481240U (en) | 2015-12-29 | 2015-12-29 | Novel series connection heat supply network drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114261.2U CN205481240U (en) | 2015-12-29 | 2015-12-29 | Novel series connection heat supply network drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205481240U true CN205481240U (en) | 2016-08-17 |
Family
ID=56661746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521114261.2U Withdrawn - After Issue CN205481240U (en) | 2015-12-29 | 2015-12-29 | Novel series connection heat supply network drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205481240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423398A (en) * | 2015-12-29 | 2016-03-23 | 华电郑州机械设计研究院有限公司 | Novel series heating network drainage system |
| CN110986022A (en) * | 2019-11-01 | 2020-04-10 | 中国能源建设集团广东省电力设计研究院有限公司 | Steam extraction heating heat supply drainage system |
-
2015
- 2015-12-29 CN CN201521114261.2U patent/CN205481240U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423398A (en) * | 2015-12-29 | 2016-03-23 | 华电郑州机械设计研究院有限公司 | Novel series heating network drainage system |
| CN105423398B (en) * | 2015-12-29 | 2018-04-06 | 华电郑州机械设计研究院有限公司 | One kind series connection heat supply network draining system |
| CN110986022A (en) * | 2019-11-01 | 2020-04-10 | 中国能源建设集团广东省电力设计研究院有限公司 | Steam extraction heating heat supply drainage system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20180406 |