CN204100359U - A kind of direct hold over system being applied to heat supply network - Google Patents
A kind of direct hold over system being applied to heat supply network Download PDFInfo
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- CN204100359U CN204100359U CN201420454746.5U CN201420454746U CN204100359U CN 204100359 U CN204100359 U CN 204100359U CN 201420454746 U CN201420454746 U CN 201420454746U CN 204100359 U CN204100359 U CN 204100359U
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Abstract
The utility model relates to a kind of direct hold over system being applied to heat supply network.Also do not have a kind of reasonable in design at present, enable heat network system realize the direct hold over system being applied to heat supply network of optimizing operation.Feature of the present utility model is: comprise nitrogen-making device, heat-accumulator tank, upper water distributing tray, lower water distributing tray, heat release pump, heat release hot water control valve, accumulation of heat pressure-reducing valve, heat accumulating water temperature tester, accumulation of heat pump, heat release cold water control valve, heat supply network water supply line and heat supply network water return pipeline, nitrogen-making device is connected to the top of heat-accumulator tank, upper water distributing tray and lower water distributing tray are arranged on top and the bottom of heat-accumulator tank respectively, heat supply network water supply line is connected on water distributing tray, and heat release pump, heat release hot water control valve, accumulation of heat pressure-reducing valve and heat accumulating water temperature tester are installed on heat supply network water supply line; Heat supply network water return pipeline is connected on lower water distributing tray, and accumulation of heat pump and heat release cold water control valve are installed on heat supply network water return pipeline.Of the present utility model reasonable in design, improve the stable and security of heating system.
Description
Technical field
The utility model relates to a kind of direct hold over system being applied to heat supply network, belongs to a kind of peak regulation hold over system being applied to central heating.
Background technology
Along with the progressively raising of people's living standard, also constantly rise with heat demand.Although the energy conservation of some advanced persons is in power plant's extensive use, and creates good economic and social benefits, but still it is growing with heat demand and use thermal comfort to meet society.
Traditional heat network system as shown in Figure 1, primarily of heat supply initial station 1, pumps for hot water supply net 2, the compositions such as heat exchange station 3 and a secondary net side small pump 4.When the heat user heat demand change of heat exchange station 3 correspondence, the heat of a heat network system conveying also changes thereupon, finally causes the fluctuation that power plant's heating is drawn gas.Heat exchange station 3 quantity of same heat network system is more, when reach tens even up to a hundred time, how regulating power plant's heating to draw gas and the transfer heat of a heat network system, with satisfied different heat user demand, will be comparatively complicated problem.In addition, along with heat supply, just latter stage and intraday ambient air temperature change the fluctuation also existed greatly to the heat user institute calorific requirement corresponding to heat exchange station 3.If realize regulating in real time to heat user institute's calorific requirement in each period, a heat supply network and power plant's heating are drawn gas and will be in fluctuation status for a long time.
[academic dissertation] Wang Wei, 2010-Beijing University of Technology: disclose the application study of storage heater in district heating field in architectural and civil engineering, this research points out that significant energy-saving and emission-reduction effect is not only played in the introducing of storage heater in space-heating system, stability and the security of heating network operation can be strengthened simultaneously, but in this research, do not provide the direct hold over system being applied to heat supply network.
In sum, also there is no a kind of reasonable in design at present, enable heat network system realize optimizing operation, improve the stable direct hold over system being applied to heat supply network with security of heating system.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of reasonable in design, enables heat network system realize optimizing operation, improves the stable direct hold over system being applied to heat supply network with security of heating system.
The technical scheme in the invention for solving the above technical problem is: this is applied to the direct hold over system of heat supply network, it is characterized in that: comprise nitrogen-making device, heat-accumulator tank, upper water distributing tray, lower water distributing tray, heat release pump, heat release hot water control valve, accumulation of heat pressure-reducing valve, heat accumulating water temperature tester, accumulation of heat pump, heat release cold water control valve, heat supply network water supply line and heat supply network water return pipeline, described nitrogen-making device is connected to the top of heat-accumulator tank, described upper water distributing tray and lower water distributing tray are arranged on top and the bottom of heat-accumulator tank respectively, described heat supply network water supply line is connected on water distributing tray, described heat release pump, heat release hot water control valve, accumulation of heat pressure-reducing valve and heat accumulating water temperature tester are installed on heat supply network water supply line, described heat supply network water return pipeline is connected on lower water distributing tray, and described accumulation of heat pump and heat release cold water control valve are installed on heat supply network water return pipeline.
As preferably, the utility model also comprises accumulation of heat side small pump and moisturizing pipeline, and one end of described moisturizing pipeline is connected on heat supply network water return pipeline, and described accumulation of heat side small pump is arranged on moisturizing pipeline.
As preferably, the top of heat-accumulator tank described in the utility model is provided with nitrogen-sealed voltage-regulating system.
As preferably, the heat supply network of the import and export of heat-accumulator tank described in the utility model is provided with mixing control valve for backwater contact pipeline.
The utility model compared with prior art, have the following advantages and effect: heat storage technology can by heat energy more than needed by certain medium storage in space-heating system, be used again when needing, the effect of " peak load shifting " can be played, to solve between heat energy supply and demand unmatched contradiction over time and space, the heat of heat supply network effectively can be regulated to export, strengthen heat supply network safety and stability.For solving domestic traditional heat network system Problems existing, recycle heat unnecessary in heat supply network better, the utility model is on the basis of traditional accumulation of heat thought, after paying creative work, a kind of novel direct hold over system being applicable to heat supply network is proposed, to alleviate the heat demand fluctuation of Different periods, and former heat network system is played to the effect of voltage stabilizing and emergency episode moisturizing.The introducing of hold over system, when heat supply network occurs that emergency episode occurs to leak, as the water source of emergency water compensating, also can play pressure stabilization function to original heat network system simultaneously.
The direct hold over system being applied to heat network system in the utility model is a kind of constant pressure storing heating system, with the phase-transition heat-storage existed in the market, idle call ice conserve cold compared with water cold storage product, can be more widely applicable for the heating system of large volume, the large temperature difference.By on the basis of traditional heat network system, increase the direct hold over system that the utility model relates to, fully can reclaim the unnecessary heat of heating system, and it is stored by heat-accumulator tank, and the heat release when heating system heating load is not enough, play the effect of peak adjusting heat source, avoid the frequent fluctuation of extracted steam from turbine parameter or the frequent start-stop of peaking boiler, Absorbable organic halogens steam turbine operation operating mode, decreases fuel consumption on the other hand on the one hand, reduces for steam power plant's overall operation expense.
Store except emission capacity except above-mentioned, this hold over system also has the following advantages: a, can be used as the emergency water compensating of a heat network system, for heat supply network safe operation provides safeguard.When circulation pump of heat-supply network unexpected out of service time, huge water attack will be produced, make that power plant is inner to be destroyed with heat distribution pipe network, adopt hold over system just can effectively alleviate high-voltage oscillation that water attack causes and destruction, for heat supply network safe operation provides safeguard.And when heat supply network somewhere water pipe burst suddenly cause a large amount of dehydration time, the hold over system be directly connected with heat supply network just can immediately to heat supply network moisturizing, maintains heat supply network system pressure, prevents whole heat network system from stopping transport.B, provide standby heat source for heating system.When heat source quits work for some reason, hold over system can start in time, carries out complementary heating.C, hold over system are directly connected with heating system, can play the effect of stable heating network pressure, ensure that heating system static pressure is constant.
Hold over system involved by the utility model can be applicable to a heating network, according to concrete real-time fluctuations thermal load demands, can arrange one or more heat-accumulator tank.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional heat network system in prior art.
Fig. 2 is the structural representation of the direct hold over system being applied to heat supply network in the utility model embodiment.
In figure: 1-first heat exchange station, 2-pumps for hot water supply net, 3-heat exchange station, 4-mono-secondary net side small pump, 5-nitrogen-making device, 6-heat-accumulator tank, the upper water distributing tray of 7-, water distributing tray under 8-, 9-heat release pump, 10-heat release hot water control valve a, 11-heat release hot water control valve b, 12-accumulation of heat pressure-reducing valve, 13-heat accumulating water temperature tester, 14-mixing control valve, 15-accumulation of heat pump, 16-heat release cold water control valve, 17-accumulation of heat side small pump, 18-heat supply network water supply line, 19-heat supply network water return pipeline, 20-high temperature feed pipe, 21-cold water pipe, 22-heat supply network is for backwater contact pipeline, 23-moisturizing pipeline, 24-accumulation of heat pipeline.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment.
See Fig. 2, the direct hold over system being applied to heat supply network in the present embodiment comprises first heat exchange station 1, a pumps for hot water supply net 2, heat exchange station 3, one secondary net side small pump 4, nitrogen-making device 5, heat-accumulator tank 6, upper water distributing tray 7, lower water distributing tray 8, heat release pump 9, heat release hot water control valve a10, heat release hot water control valve b11, accumulation of heat pressure-reducing valve 12, heat accumulating water temperature tester 13, mixing control valve 14, accumulation of heat pump 15, heat release cold water control valve 16, accumulation of heat side small pump 17, heat supply network water supply line 18, heat supply network water return pipeline 19, high temperature feed pipe 20, cold water pipe 21, heat supply network is for backwater contact pipeline 22, moisturizing pipeline 23 and accumulation of heat pipeline 24.
The direct hold over system mentioned in the present embodiment, is applied in traditional heat network system.With the capital equipment in traditional heat network system as 1, the pumps for hot water supply net 2 in heat supply initial station, heat exchange station 3 is connected with secondary net side small pump 4 grade.
Nitrogen-making device 5 in the present embodiment is connected to the top of heat-accumulator tank 6, feeds nitrogen by nitrogen-making device 5 to heat-accumulator tank 6.Upper water distributing tray 7 and lower water distributing tray 8 are arranged on top and the bottom of heat-accumulator tank 6 respectively, one end of heat supply network water supply line 18 is connected on water distributing tray 7, the other end of this heat supply network water supply line 18 is connected on the heat supply network pipeline after first heat exchange station 1, heat release pump 9 and heat release hot water control valve a10 are installed on heat supply network water supply line 18, and one end of heat supply network water supply line 18, heat release pump 9 and heat release hot water control valve a10 are arranged in order along heat supply network water supply line 18.
In the present embodiment, one end of high temperature feed pipe 20 is connected on heat supply network water supply line 18, one end of this high temperature feed pipe 20 is between heat release pump 9 and heat release hot water control valve a10, the other end of high temperature feed pipe 20 is connected on the heat supply network pipeline between first heat exchange station 1 and a pumps for hot water supply net 2, and heat release hot water control valve b11 is arranged on high temperature feed pipe 20.
In the present embodiment, one end of accumulation of heat pipeline 24 is connected on heat supply network water supply line 18, one end of this accumulation of heat pipeline 24 is between one end of heat supply network water supply line 18 and heat release pump 9, the other end of accumulation of heat pipeline 24 is connected on the heat supply network pipeline after first heat exchange station 1, accumulation of heat pressure-reducing valve 12 and heat accumulating water temperature tester 13 are installed on accumulation of heat pipeline 24, and one end of accumulation of heat pipeline 24, heat accumulating water temperature tester 13 and accumulation of heat pressure-reducing valve 12 are arranged in order along accumulation of heat pipeline 24.In the present embodiment, the other end of first heat exchange station 1, accumulation of heat pipeline 24 and the other end of heat supply network water supply line 18 are arranged in order along heat supply network pipeline.
In the present embodiment, one end of heat supply network water return pipeline 19 is connected on lower water distributing tray 8, the other end of this heat supply network water return pipeline 19 is connected on the heat supply network pipeline before a pumps for hot water supply net 2, accumulation of heat pump 15 is arranged on heat supply network water return pipeline 19, one end of described cold water pipe 21 and the other end are all connected on heat supply network water return pipeline 19, the other end of one end of heat supply network water return pipeline 19, one end of cold water pipe 21, accumulation of heat pump 15 and cold water pipe 21 is arranged in order along heat supply network water return pipeline 19, and heat release cold water control valve 16 is arranged on cold water pipe 21.
In the present embodiment, heat supply network is connected on accumulation of heat pipeline 24 for one end of backwater contact pipeline 22, this heat supply network gets in touch with one end of pipeline 22 between accumulation of heat pressure-reducing valve 12 and heat accumulating water temperature tester 13 for backwater, heat supply network is connected on heat supply network water return pipeline 19 for the other end of backwater contact pipeline 22, this heat supply network gets in touch with the other end of pipeline 22 between one end of heat supply network water return pipeline 19 and one end of cold water pipe 21 for backwater, mixing control valve 14 is arranged on heat supply network on backwater contact pipeline 22, electrical connection between described heat accumulating water temperature tester 13 and mixing control valve 14.
In the present embodiment, one end of moisturizing pipeline 23 is connected on heat supply network water return pipeline 19, and one end of this moisturizing pipeline 23 is between the other end and the other end of heat supply network water return pipeline 19 of cold water pipe 21, and accumulation of heat side small pump 17 is arranged on moisturizing pipeline 23.
Be applied in the present embodiment the direct hold over system of heat supply network to store exothermic processes as follows: exothermic process is: when a heat supply network supply water temperature is less than or equal to 98 DEG C, and the heat supply network water supply line of the hot water that heat-accumulator tank 6 is interior 98 DEG C successively after heat release pump 9 and heat release hot water control valve a10 enter heat supply initial station 1 carries out heat release; When a heat supply network supply water temperature is higher than 98 DEG C, the heat supply network water return pipeline of the hot water in heat-accumulator tank 6 before heat release pump 9 and heat release hot water control valve b11 enter heat supply initial station 1 and after a pumps for hot water supply net 2 carries out heat release; In order to maintain liquid level stable in heat-accumulator tank 6, when hot water in heat-accumulator tank 6 is to heat supply network heat release, isopyknic heat supply network backwater need be had to enter heat-accumulator tank 6, not entered in heat-accumulator tank 6 through heat release cold water control valve 16 and lower water distributing tray 8 by the heat supply network backwater heated before a pumps for hot water supply net 2.By under different heat supply network supply water temperature, select different heat release hot water control valves and accordingly corresponding to heat supply network interface position thereof, fully can avoid heat-accumulator tank hot water temperature and a unmatched situation of heat supply network supply water temperature, thus meet consumers' demand, reduce heat exchange loss.
Heat-accumulating process is: during accumulation of heat, high temperature heat supply network after heat supply initial station 1 supplies water after accumulation of heat pressure-reducing valve 12, enter in heat-accumulator tank 6 by upper water distributing tray 7, heat accumulating water temperature tester 13 accumulation of heat pipeline 24 is equipped with, the hot water temperature entered in heat-accumulator tank 6 is monitored, when institute's calorimetric coolant-temperature gage is higher than hot water temperature in heat-accumulator tank 6, heat supply network is opened for the mixing control valve 14 on backwater contact pipeline 22, and be adjusted to suitable aperture, the heat supply network backwater that portion temperature is lower supplies water with high temperature heat supply network and mixes, the hot water temperature entered in heat-accumulator tank 6 is made to maintain 98 DEG C, the water higher than 98 DEG C is avoided to enter heat-accumulator tank 6 and occur vaporization phenomenon, equally, in order to maintain liquid level stable in heat-accumulator tank 6, when the heat supply network water supply of one secondary net side enters in heat-accumulator tank 6 and carries out accumulation of heat, isopyknic heat supply network backwater need be had to discharge heat-accumulator tank 6, and in heat-accumulator tank 6, the cold water of lower floor is delivered to heat supply network pipeline before original heating system pumps for hot water supply net 2 by accumulation of heat pump 15.Whole hold over system can regard a special heat user of heat supply initial station 1 as, and this special heat user has heat release and heat accumulation function, can carry out heat regulation to a heat network system.
Hot water temperature mentioned by the utility model 98 DEG C is based on normal atmosphere pressure, the temperature that hot water is not vaporized.Heat supply network in the utility model is directly connected with original heating system for water return pipeline.The heat supply network water return pipeline 19 that under the utility model, water distributing tray 8 is connected also is provided with accumulation of heat side small pump 17, when this hold over system normally works, a secondary net side small pump 4 in tradition heat network system can operation at part load or close down, replace carrying out moisturizing with accumulation of heat side small pump 17, still can play voltage stabilizing and moisturizing effects.The utility model, under different heat supply network supply water temperature, is selected different heat release hot water control valves and the interface position corresponding to heat supply network thereof, can be met user's heat demand, can reduce heat exchange loss.
In addition, it should be noted that, the specific embodiment described in this description, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to the explanation of the utility model structure example.The equivalence change that structure, feature and principle described in all foundation the utility model inventional idea are done or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (4)
1. one kind is applied to the direct hold over system of heat supply network, it is characterized in that: comprise nitrogen-making device, heat-accumulator tank, upper water distributing tray, lower water distributing tray, heat release pump, heat release hot water control valve, accumulation of heat pressure-reducing valve, heat accumulating water temperature tester, accumulation of heat pump, heat release cold water control valve, heat supply network water supply line and heat supply network water return pipeline, described nitrogen-making device is connected to the top of heat-accumulator tank, described upper water distributing tray and lower water distributing tray are arranged on top and the bottom of heat-accumulator tank respectively, described heat supply network water supply line is connected on water distributing tray, described heat release pump, heat release hot water control valve, accumulation of heat pressure-reducing valve and heat accumulating water temperature tester are installed on heat supply network water supply line, described heat supply network water return pipeline is connected on lower water distributing tray, and described accumulation of heat pump and heat release cold water control valve are installed on heat supply network water return pipeline.
2. the direct hold over system being applied to heat supply network according to claim 1, it is characterized in that: also comprise accumulation of heat side small pump and moisturizing pipeline, one end of described moisturizing pipeline is connected on heat supply network water return pipeline, and described accumulation of heat side small pump is arranged on moisturizing pipeline.
3. the direct hold over system being applied to heat supply network according to claim 1 and 2, is characterized in that: the top of described heat-accumulator tank is provided with nitrogen-sealed voltage-regulating system.
4. the direct hold over system being applied to heat supply network according to claim 1 and 2, is characterized in that: the heat supply network of the import and export of described heat-accumulator tank is provided with mixing control valve for backwater contact pipeline.
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| CN201420454746.5U CN204100359U (en) | 2014-08-13 | 2014-08-13 | A kind of direct hold over system being applied to heat supply network |
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| CN201420454746.5U CN204100359U (en) | 2014-08-13 | 2014-08-13 | A kind of direct hold over system being applied to heat supply network |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781640A (en) * | 2016-01-29 | 2016-07-20 | 华电电力科学研究院 | Peak regulation energy storage system for condensed steam type turbine unit and operation adjusting method |
| CN108895514A (en) * | 2018-04-28 | 2018-11-27 | 大连海心信息工程有限公司 | The whole network distribution storage heating system and method |
| CN109883233A (en) * | 2019-04-19 | 2019-06-14 | 青岛达能环保设备股份有限公司 | Power plant's depth peak regulation heat-accumulator tank control pressurer system |
| CN112197434A (en) * | 2020-11-03 | 2021-01-08 | 田国涛 | Domestic hot water system and working method thereof |
-
2014
- 2014-08-13 CN CN201420454746.5U patent/CN204100359U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781640A (en) * | 2016-01-29 | 2016-07-20 | 华电电力科学研究院 | Peak regulation energy storage system for condensed steam type turbine unit and operation adjusting method |
| CN108895514A (en) * | 2018-04-28 | 2018-11-27 | 大连海心信息工程有限公司 | The whole network distribution storage heating system and method |
| CN108895514B (en) * | 2018-04-28 | 2021-01-08 | 大连海心信息工程有限公司 | Full-network distributed heat storage and supply system and method |
| CN109883233A (en) * | 2019-04-19 | 2019-06-14 | 青岛达能环保设备股份有限公司 | Power plant's depth peak regulation heat-accumulator tank control pressurer system |
| CN112197434A (en) * | 2020-11-03 | 2021-01-08 | 田国涛 | Domestic hot water system and working method thereof |
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Address after: Hangzhou City, Zhejiang Province, 310030 Xihu District science and Technology Park of West Lake Park Road, No. 10 Patentee after: Huadian Power Science Research Institute Co., Ltd. Address before: Hangzhou City, Zhejiang Province, 310030 Xihu District science and Technology Park of West Lake Park Road, No. 10 Patentee before: China Huadian Electric Research Institute |
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