CN109654577A - Distributed heating network energy storage pressure stabilizing system - Google Patents

Distributed heating network energy storage pressure stabilizing system Download PDF

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Publication number
CN109654577A
CN109654577A CN201910077784.0A CN201910077784A CN109654577A CN 109654577 A CN109654577 A CN 109654577A CN 201910077784 A CN201910077784 A CN 201910077784A CN 109654577 A CN109654577 A CN 109654577A
Authority
CN
China
Prior art keywords
supply network
heat supply
water
heat
energy storage
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.)
Pending
Application number
CN201910077784.0A
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Chinese (zh)
Inventor
毕雨
赵力
田栋
史凤林
王德群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weiliya (harbin) Thermoelectric Co Ltd
Original Assignee
Weiliya (harbin) Thermoelectric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weiliya (harbin) Thermoelectric Co Ltd filed Critical Weiliya (harbin) Thermoelectric Co Ltd
Priority to CN201910077784.0A priority Critical patent/CN109654577A/en
Publication of CN109654577A publication Critical patent/CN109654577A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00Hot-water central heating systems
    • F24D3/02Hot-water central heating systems with forced circulation, e.g. by pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00Hot-water central heating systems
    • F24D3/10Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks Hydraulic components of a central heating system
    • F24D3/1058Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks Hydraulic components of a central heating system disposition of pipes and pipe connections

Abstract

The present invention relates to a kind of distributed heating network energy storage pressure stabilizing systems, fore pump (4) is mounted on the entrance side of hot-water boiler (2) and heat supply network heat exchanger (3), pumps for hot water supply net (5) is mounted on the outlet side of hot-water boiler (2) and heat supply network heat exchanger (3), heat supply network dirt separator (8) is mounted on the entrance side of fore pump (4), the outlet pipe of heat supply network small pump (6) is connected on the entrance pipe of heat supply network dirt separator (8), air pressure energy storage canister (1) has multiple, it is distributed in the different zones of heat supply network pipeline, the gasbag pressure of air pressure energy storage canister (1) and the water return pipeline pressure of on-position are identical.Pressure oscillation caused by the present invention can quickly be compensated because of the dehydration of heat supply network part on heat supply network water return pipeline, successfully avoid because water return pipeline on hypotony and caused by hot-water boiler occur vaporization or pumps for hot water supply net entrance vaporization etc. accidents, for the operational safety for guaranteeing net source, preferable effect is achieved.

Description

Distributed heating network energy storage pressure stabilizing system
Technical field
The present invention relates to a kind of distributed heating network energy storage pressure stabilizing systems.
Background technique
In the north of china in winter of severe cold, outside air temperature is minimum up to subzero 30 DEG C, and heating enterprise is needed to resident and non-resident Unit provides the heating service for being up to half a year, and the stable operation of heat source plant and heat network system becomes the premise base up to standard that heats Plinth, wherein the pressure of heat supply network level-one net system, which is stablized, becomes heat source plant (hot-water boiler, heat exchanger and pumps for hot water supply net etc.) An important factor for stable operation.The area of heat-supply service of certain northern big thermoelecrtic enterprise is 32,000,000 square metres (construction area), heat supply Radius is up to 10 kilometers, and the length of pipeline of level-one net is more than 100 kilometers, and level-one net water capacity is at 60000 cubic metres or so, for physochlaina infudibularis Number is 130 DEG C of supply water temperature, and 70 DEG C of return water temperature, level-one net system water supplement point is located at entering for the water return pipeline dirt separator of heating plant Mouth side sets pressure as 0.5Mpa, and the moisturizing for the secondary network system that hot-water boiler MFT is acted when lower than 0.3Mpa takes from level-one net Water, heating plant configure 4 frequency conversion small pumps, and total rate of water make-up is 360 cubes ms/h, level-one net system when heating system is run Rate of water make-up be 100 cubes ms/h or so, but when level-one net system biggish leakage occurs or after due to repairing to part The case where will appear system pressure moment when valve opening is excessive when pipe network fills the water and be greatly lowered, cause the heat of heating plant Situations such as homogeneous solution-type reactor MFT blowing out, the vaporization of circulation pump of heat-supply network entrance or heat supply network heat exchanger water attack, occurs, and can cause to equipment seriously Injury.Because conventional matched small pump is unable to satisfy the moisturizing requirement of instantaneous super large rate of water make-up in this case, it is difficult to avoid The generation of system pressure rapid drawdown.Therefore reliable and stable method for stabilizing voltage and device are provided for heat network system, become scientific and technical personnel urgently Emphasis R&D work to be solved.
Summary of the invention
The object of the present invention is to provide a kind of distributed heating network energy storage pressure stabilizing system, eliminate due to level-one net system occur compared with Big leakage is significantly dropped due to will appear system pressure moment when valve opening is excessive when filling the water after maintenance to local pipe networks Low situation occurs, and avoids the thus injury caused by heat source plant, guarantees the stable operation of heat supply.Technical side of the invention Case is: a kind of distributed heating network energy storage pressure stabilizing system, by air pressure energy storage canister (1), hot-water boiler (2), heat supply network heat exchanger (3), preceding Set pump (4), pumps for hot water supply net (5), heat supply network small pump (6), softening water tank (7), heat supply network heat exchanger outside heat supply network dirt separator (8) and factory (9) it forms, the entrance side of hot-water boiler (2) and heat supply network heat exchanger (3) is installed fore pump (4) respectively, multiple pumps for hot water supply net (5) Be connected to after parallel connection with the outlet header for being mounted on hot-water boiler (2) and heat supply network heat exchanger (3), the outlet of pumps for hot water supply net (5) with The water inlet of heat supply network heat exchanger (9) is connected by pipeline, and the water outlet of heat supply network heat exchanger (9) is connect with heat supply network return main, heat Net return main is connected with heat supply network dirt separator (8) entrance, and air pressure energy storage canister (1) passes through pipeline and heat supply network heat exchanger (9) outlet pipe Road connection is connected on the entrance pipe of heat supply network dirt separator (8), heat supply network after multiple heat supply network small pumps (6) are in parallel by outlet pipe The suction inlet of small pump (6) is connected on softening water tank (7), and the outlet of heat supply network dirt separator (8) connects the fore pump of multiple parallel connections (4)。
The working principle of the invention:
The present invention is equipped with multiple air pressure energy storage canisters in the different zones of heat supply network pipe-line system, the pressure of air bag in energy storage canister It is identical as water return pipeline pressure on the spot, the energy storage canister gasbag pressure of geopotentia heat exchange station identical with heating plant region setting It is consistent with the setting pressure that the system water supplement of heating plant pumps for 0.5Mpa.The retention volume of each energy storage canister is at 10~20 cubes Rice or so, meeting when valve opening is excessive when filling the water after the biggish leakage of level-one net system appearance or due to maintenance to local pipe networks When system pressure moment occur reduces, the air pressure energy storage canister for the fluctuation that is nearby under pressure will inject in tank to heat network system Water, until balance with system pressure, due to arranging tens energy storage canisters in whole system, whole energy storage water is up on several hundred Kiloton can cope with instantaneous several hundred ton/hours of rate of water make-up completely, eliminate due to when valve opening is excessive when local pipe networks fill the water Will appear system pressure moment reduces or provides a reply buffer time to heating plant and do various counter-measures, avoids to setting It is standby to damage.Air pressure energy storage canister (1) has multiple, is distributed in the different zones of heat supply network pipeline.The air bag pressure of air pressure energy storage canister (1) Power is identical as the water return pipeline pressure of on-position.
Technical effect of the invention:
When in order to avoid occurring due to the biggish leakage of level-one net system appearance or due to being filled the water after maintenance to local pipe networks Will appear system pressure moment when valve opening is excessive significantly drops the injury caused by heat source plant, guarantees the stabilization of heat supply Operation, the present invention is equipped with multiple air pressure energy storage canisters in the different zones of heat supply network pipe-line system, in energy storage canister the pressure of air bag with Water return pipeline pressure on the spot is identical, when filling the water after the biggish leakage of level-one net system appearance or due to maintenance to local pipe networks When will appear system pressure moment when valve opening is excessive reduces, the air pressure energy storage canister for the fluctuation that is nearby under pressure will be to heat supply network System injects the water in tank, until balancing with system pressure, due to arranging tens energy storage canisters, whole energy storage in whole system Water can cope with instantaneous several hundred ton/hours of rate of water make-up, air pressure energy storage canister is distributed in addition up to several hundred upper kilotons completely It is arranged on the outlet conduit of heat supply network heat exchanger, caused by can quickly compensating because of the dehydration of heat supply network part on heat supply network water return pipeline Pressure oscillation will appear the reduction of system pressure moment or to heating plant when valve opening is excessive when eliminating due to local pipe networks water filling There is provided a reply buffer time does various counter-measures, avoids damaging equipment.The present invention is due to air pressure energy storage canister On the distributed outlet conduit for being arranged in heat supply network heat exchanger 9, heat supply network is returned caused by can quickly compensating because of the dehydration of heat supply network part Pressure oscillation on waterpipe, successfully avoid because water return pipeline on hypotony and caused by hot-water boiler vaporize Or the accidents such as pumps for hot water supply net entrance vaporization achieve preferable effect for the operational safety for guaranteeing net source.
Detailed description of the invention
Fig. 1 is systematic schematic diagram of the invention.
Specific embodiment
As shown in Figure 1, a kind of distributed heating network energy storage pressure stabilizing system, is exchanged heat by air pressure energy storage canister 1, hot-water boiler 2, heat supply network 9 groups of heat supply network heat exchanger outside device 3, fore pump 4, pumps for hot water supply net 5, heat supply network small pump 6, softening water tank 7, heat supply network dirt separator 8 and factory At, the entrance side of hot-water boiler 2 and heat supply network heat exchanger 3 install respectively after 4,35 parallel connections of pumps for hot water supply net of fore pump be mounted on Hot-water boiler 2 is connected to the outlet header of heat supply network heat exchanger 3, and the outlet of pumps for hot water supply net 5 and the water inlet of heat supply network heat exchanger 9 are logical Piping connection, the water outlet of heat supply network heat exchanger 9 are connect with heat supply network return main, and heat supply network return main enters with heat supply network dirt separator 8 Mouth is connected, and air pressure energy storage canister 1 is connect by pipeline with 9 outlet conduit of heat supply network heat exchanger.Pass through after 36 parallel connections of heat supply network small pump Outlet pipe is connected on the entrance pipe of heat supply network dirt separator 8, and the suction inlet of heat supply network small pump 6 is connected on softening water tank 7, heat supply network The outlet of dirt separator 8 connects 3 fore pumps 4 in parallel.It is configured with 60 air pressure energy storage canisters altogether in different heat exchange stations, is distributed in The different zones of heat supply network pipeline, the gasbag pressure of air pressure energy storage canister 1 and the water return pipeline pressure of on-position are identical, geopotentia The energy storage canister gasbag pressure of heat exchange station identical with heating plant region setting is 0.5Mpa, is set with what the system water supplement of heating plant pumped Constant-pressure is consistent, and the retention volume of each energy storage canister is at 15 cubic metres.It can go out when local pipe networks water filling, valve opening is excessive The pressure oscillation of system controls within the scope of 0.08Mpa when existing system pressure moment reduces, since air pressure energy storage canister is distributed It is arranged on the outlet conduit of heat supply network heat exchanger 9, caused by can quickly compensating because of the dehydration of heat supply network part on heat supply network water return pipeline Pressure oscillation, successfully avoid because water return pipeline on hypotony and caused by hot-water boiler occur vaporization or heat supply network follow The accidents such as ring pump intake vaporization achieve preferable effect for the operational safety for guaranteeing net source.

Claims (1)

1. a kind of distributed heating network energy storage pressure stabilizing system, it is characterized in that: including air pressure energy storage canister (1), hot-water boiler (2), heat supply network Heat exchanger (3), fore pump (4), pumps for hot water supply net (5), heat supply network small pump (6), softening water tank (7), heat supply network dirt separator (8) and factory The entrance side of outer heat supply network heat exchanger (9) composition, hot-water boiler (2) and heat supply network heat exchanger (3) is installed fore pump (4) respectively, multiple It is connected to after pumps for hot water supply net (5) is in parallel with the outlet header for being mounted on hot-water boiler (2) and heat supply network heat exchanger (3), heat supply network circulation The outlet of pump (5) is connect with the water inlet of heat supply network heat exchanger (9) by pipeline, and the water outlet and heat supply network of heat supply network heat exchanger (9) return Supply mains's connection, heat supply network return main are connected with heat supply network dirt separator (8) entrance, and air pressure energy storage canister (1) is changed by pipeline and heat supply network Hot device (9) outlet conduit connection, is connected to entering for heat supply network dirt separator (8) by outlet pipe after multiple heat supply network small pumps (6) are in parallel On mouth pipeline, the suction inlet of heat supply network small pump (6) is connected on softening water tank (7), and the outlet connection of heat supply network dirt separator (8) is multiple Fore pump (4) in parallel.
CN201910077784.0A 2019-01-28 2019-01-28 Distributed heating network energy storage pressure stabilizing system Pending CN109654577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910077784.0A CN109654577A (en) 2019-01-28 2019-01-28 Distributed heating network energy storage pressure stabilizing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910077784.0A CN109654577A (en) 2019-01-28 2019-01-28 Distributed heating network energy storage pressure stabilizing system

Publications (1)

Publication Number Publication Date
CN109654577A true CN109654577A (en) 2019-04-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910077784.0A Pending CN109654577A (en) 2019-01-28 2019-01-28 Distributed heating network energy storage pressure stabilizing system

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322671A (en) * 2020-03-25 2020-06-23 烟台同兴智能技术有限公司 Distributed heat supply network energy storage and voltage stabilization device
CN113048537A (en) * 2021-03-31 2021-06-29 西安西热节能技术有限公司 Bypass pipe constant pressure simulation system and method using bypass constant pressure ratio

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322671A (en) * 2020-03-25 2020-06-23 烟台同兴智能技术有限公司 Distributed heat supply network energy storage and voltage stabilization device
CN111322671B (en) * 2020-03-25 2021-08-24 烟台明石智能技术有限公司 Distributed heat supply network energy storage and voltage stabilization device
CN113048537A (en) * 2021-03-31 2021-06-29 西安西热节能技术有限公司 Bypass pipe constant pressure simulation system and method using bypass constant pressure ratio

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