CN215112837U - Heat supply network water supply heat storage and discharge heat circulation adjusting system - Google Patents
Heat supply network water supply heat storage and discharge heat circulation adjusting system Download PDFInfo
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- CN215112837U CN215112837U CN202121443341.8U CN202121443341U CN215112837U CN 215112837 U CN215112837 U CN 215112837U CN 202121443341 U CN202121443341 U CN 202121443341U CN 215112837 U CN215112837 U CN 215112837U
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Abstract
The utility model relates to a heat supply network water supply heat storage and release heat circulation adjusting system, which comprises a hot water energy storage device and a low-temperature economizer, wherein a water outlet of the low-temperature economizer is communicated with a primary water inlet of the hot water energy storage device through a first water inlet pipeline, and a primary water outlet of the hot water energy storage device is communicated on a return water pipeline of the heat supply network through a first water outlet pipeline; the hot-water supply network water return pipeline is communicated with a secondary water inlet of the hot-water energy storage device through a second water inlet pipeline, and a secondary water outlet of the hot-water energy storage device is communicated with a hot-water supply network water supply pipeline through a second water outlet pipeline; an adjusting door is arranged at the water outlet end of the low-temperature economizer; the second water outlet pipeline is provided with an adjusting valve. The utility model discloses the heat release that utilizes hot water energy storage peak shaving device to store satisfies the heat demand of using of heating with hot peak period, and the heat of rational regulation heating heat supply network, the effectual reasonable allotment that realizes boiler load peak period and heating with hot valley period guarantees the heat supply network even running.
Description
Technical Field
The utility model relates to a heat supply network heating system especially relates to an governing system that heat supply network supplied water.
Background
In order to provide a clean heat supply environment in recent years, cogeneration of power station heat and power is an important mode for heating, a boiler is used as a heat source point for heat supply, and in order to fully recover the heat of smoke discharged from a flue at the tail part of the boiler, the northern area widely adopts a mode of heating and supplying heat by using a low-temperature economizer of a boiler of a power station to recover the heat; the utility boiler load fluctuates with the demand of the electricity user, the characteristic is that the load is high in the daytime and low at night, the heating heat load fluctuates with the temperature around the day and low at day and night, the two have the problem of unmatched peak valley of supply and demand, namely, the peak period and the valley period of the heating load in one day are just opposite to the peak period and the valley period of the load of the boiler, in order to meet the requirement of stable heat supply of heating heat load, a set of regulating system is necessary to store the heat energy in the heating low valley period at the peak period of boiler load, when the load of the boiler is at the peak period of the heating load in the valley period, the heat stored by the hot water energy storage peak shaving is utilized to make up the shortage of the heat supply in the peak period of the heating load caused by the low load of the boiler, the heat of the heating heat supply network is reasonably adjusted, and under the condition of ensuring normal heating, the reasonable allocation of boiler load and heating heat is realized, and the stable operation of a heating heat supply network is ensured.
Disclosure of Invention
An object of the utility model is to avoid prior art's not enough to provide an effective adoption heat stores up and realizes the reasonable allotment of boiler load peak period and heating with hot valley period, has guaranteed the heat supply network water supply heat of the even running of heating heat supply network and has stored thermal cycle governing system.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a heat supply network water supply heat storage and storage heat circulation adjusting system comprises a low-temperature economizer used for heating heat supply network water, wherein a water outlet of the low-temperature economizer is communicated with a heat supply network water supply pipeline through a pipeline, and a heat supply network water return pipeline is communicated with a water inlet of the low-temperature economizer through a pipeline;
the water outlet of the low-temperature economizer is communicated with the primary water inlet of the hot water energy storage device through a first water inlet pipeline, and the primary water outlet of the hot water energy storage device is communicated with the return pipeline of the heat supply network through a first water outlet pipeline to form a heat absorption loop for the hot water energy storage device to absorb heat in the load peak period of the boiler;
the hot-water supply network return pipeline is communicated with a secondary water inlet of the hot-water energy storage device through a second water inlet pipeline, and a secondary water outlet of the hot-water energy storage device is communicated with a hot-water supply network water supply pipeline through a second water outlet pipeline to form a heat release loop for the hot-water energy storage device to release heat in the load valley period of the boiler;
one end of the first water inlet pipeline is communicated with a connecting pipeline between a water outlet of the low-temperature economizer and a heat supply network water supply pipeline, an adjusting door is arranged on the connecting pipeline between the connecting joint of the first water inlet pipeline and the connecting pipeline and the heat supply network water supply pipeline, and the adjusting door controls the flow of hot water entering the hot water energy storage device according to the operation load of the boiler; and the second water outlet pipeline is provided with an adjusting valve for controlling the flow of the hot water outlet of the hot water energy storage device.
Furthermore, a first water inlet shutoff valve is arranged on the first water inlet pipeline, and a first water outlet shutoff valve is arranged on the first water outlet pipeline; a second water inlet shutoff valve is arranged on the second water inlet pipeline, a second water outlet shutoff valve is also arranged on the second water outlet pipeline, and the second water outlet shutoff valve is arranged on the second water outlet pipeline in front of the regulating valve; the first water inlet shutoff valve (16), the first water outlet shutoff valve (17), the second water inlet shutoff valve (3) and the second water outlet shutoff valve (8) are all shutoff valves for overhauling the hot water energy storage device (1).
Furthermore, a third water outlet shutoff valve for shutting off the outlet of the thermal regulation water and a check valve for preventing the backflow of the water supplied by the heat supply network are sequentially arranged on the second water outlet pipeline, and the regulating valve is arranged on a pipeline between the second water outlet shutoff valve and the third water outlet shutoff valve; and a second thermometer is arranged on a pipeline between the third water outlet shutoff valve and the check valve, the second thermometer is electrically connected with the regulating valve, and the regulating valve controls the hot water energy storage device to thermally regulate the flow of the outlet water according to the temperature measured by the second thermometer.
Furthermore, a third thermometer and a second pressure transmitter are sequentially arranged on a pipeline between the regulating valve and the second water outlet shutoff valve and used for monitoring water outlet parameters of the thermal regulation water outlet of the hot water energy storage device.
Furthermore, the second water inlet pipeline is also provided with a third water inlet shutoff valve for shutting off the heat regulation water inlet, and a flowmeter, a fourth thermometer and a second pressure transmitter are sequentially arranged between the second water inlet shutoff valve and the third water inlet shutoff valve and used for monitoring water inlet parameters of the heat regulation water inlet entering the hot water energy storage device.
Furthermore, a first thermometer for judging the energy storage fullness is arranged on the hot water energy storage device.
Furthermore, the system also comprises a heat supply network water supply supplement pipeline which is also communicated with the heat supply network water return pipeline.
Furthermore, the low-temperature economizer absorbs the flue gas at the smoke wellhead of the boiler and transfers the heat of the flue gas to the hot circulating water of the low-temperature economizer, and simultaneously, the low-temperature economizer discharges the flue gas to the dust remover.
The utility model has the advantages that:
(1) the water outlet temperature of the boiler load high-low temperature economizer is high in the daytime, the heating load demand is low, and the heating heat supply amount is reduced by increasing the water supply amount of a heat supply network entering a hot water energy storage device to store heat and reducing the external water supply amount of the heat supply network; the outlet water temperature of the low temperature economizer of boiler load is low at night, and the heating demand is big, and hot water energy memory emits the heat of storing daytime and provides the heat supply network water supply and improve the heating heat supply volume, and the essence is that the heat in supplying water through the heat supply network stores the thermal cycle regulation, has reached the peak shaving effect of the coordination of boiler heat supply, promptly the utility model discloses a store the heat energy of boiler load peak period heating load valley period, when boiler load valley period heating load peak period, utilize the heat release that hot water energy memory peak regulation device stored to satisfy the heat demand of heating with the heat peak period, rationally adjust the heat of heating heat supply network to effectual reasonable allotment of realizing boiler load peak period and heating with the heat valley period has guaranteed the even running of heating heat supply network.
(2) The utility model discloses still set the governing valve for hot water energy memory's outlet pipe to and set up adjusting valve on the current low temperature economizer outlet water heat pipeline, can further guarantee the even running of heating heat supply network at the hot regulation temperature degree that boiler load and heating used the effectual control hot water volume in both ends and heating usefulness.
(3) The specific volume of the liquid water is small, the heat exchange coefficient is large, and the heat exchange area required by the hot water energy storage is small, so that the hot water energy storage occupies small area, the investment is small, and the implementation is easier.
(4) The whole heat exchange process is firstly the heat exchange between the flue gas and the water in the low-temperature economizer, and then the hot water exchanges heat and stores heat again, so that the heat exchange times are more, and the heat conversion efficiency is low.
(5) The hot water energy storage is suitable for areas with large boiler load change, not large heating heat load, large day and night temperature difference and slightly low hot water temperature.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention.
The system comprises a hot water energy storage device 1, a first thermometer 2, a second water inlet shutoff valve 3, a flow meter 4, a fourth thermometer 5, a first pressure transmitter 6, a third water inlet shutoff valve 7, a second water outlet shutoff valve 8, a second pressure transmitter 9, a third thermometer 10, an adjusting valve 11, a third water outlet shutoff valve 12, a second thermometer 13, a check valve 14, an adjusting valve 15, a first water inlet shutoff valve 16, a first water outlet shutoff valve 17, a low-temperature economizer 18 and a hot network water supply supplementing pipeline 19.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1: as shown in fig. 1, a heat supply network water supply heat storage and storage heat circulation adjusting system comprises a low-temperature economizer 18 for heating heat supply network water, wherein a water outlet of the low-temperature economizer 18 is communicated with a heat supply network water supply pipeline through a pipeline, and a heat supply network water return pipeline is communicated with a water inlet of the low-temperature economizer 18 through a pipeline; after the heat supply network water circularly supplies heat, the heat supply network water losing the temperature enters the low-temperature economizer 18 through a heat supply network water return pipeline, and the water heated in the low-temperature economizer 18 circularly enters a heat supply network water supply pipe to supply heat, and the circulation is repeated; the heat supply network water is water which is circulated and used in the heat supply network.
A water outlet of the low-temperature economizer 18 is communicated with a primary water inlet of the hot water energy storage device 1 through a first water inlet pipeline, and a primary water outlet of the hot water energy storage device 1 is communicated with a heat supply network water return pipeline through a first water outlet pipeline to form a heat absorption loop for the hot water energy storage device 1 to absorb heat during the boiler load peak period; a first water inlet shutoff valve 16 is arranged on the first water inlet pipeline, and a first water outlet shutoff valve 17 is arranged on the first water outlet pipeline, so that the hot water energy storage device 1 is conveniently isolated from the system during maintenance; one part of hot water discharged by the low-temperature economizer 18 directly enters a water supply pipeline of a heat supply network, the other part of hot water enters the hot water energy storage device 1 through a pipeline, at the moment, the hot water energy storage device 1 absorbs heat in the hot water, the heat is discharged through a primary water outlet and flows back to a return pipeline of the heat supply network, and the hot water enters the low-temperature economizer 18 again for heating.
The hot water network return pipeline is communicated with a secondary water inlet of the hot water energy storage device 1 through a second water inlet pipeline, and a secondary water outlet of the hot water energy storage device 1 is communicated with a hot water network water supply pipeline through a second water outlet pipeline to form a heat release loop for releasing heat of the hot water energy storage device 1 in a boiler load valley period; a second water inlet shutoff valve 3 is arranged on the second water inlet pipeline, and a second water outlet shutoff valve 8 is arranged on the second water outlet pipeline, so that the hot water energy storage device 1 is conveniently isolated from the system during maintenance; and the heat supply network water coming out of the heat supply network water return pipeline enters the hot water energy storage device 1 through the second water inlet pipeline, absorbs the heat in the hot water energy storage device 1 to enable the water temperature to rise, and discharges the heated hot water to the heat supply network water supply pipeline for supplying heat.
One end of the first water inlet pipeline is communicated with a connecting pipeline between a water outlet of the low-temperature economizer 18 and a heat supply network water supply pipeline, an adjusting door 15 is arranged on the connecting pipeline between the connecting joint of the first water inlet pipeline and the connecting pipeline and the heat supply network water supply pipeline, and the adjusting door 15 controls the flow of hot water entering the hot water energy storage device 1 according to the operation load of the boiler.
A third water outlet shutoff valve 12 for shutting off the outlet of the thermal regulation water and a check valve 14 for preventing the backflow of the water supplied by the heat supply network are sequentially arranged on the second water outlet pipeline, and an adjusting valve 11 is arranged on the pipeline between the second water outlet shutoff valve 8 and the third water outlet shutoff valve 12; and a second thermometer 13 is arranged on a pipeline between the third water outlet shutoff valve 12 and the check valve 14, the second thermometer 13 is electrically connected with the regulating valve 11, and the regulating valve 11 controls the flow of a heat release medium of the hot water energy storage device 1 according to the temperature measured by the second thermometer 13.
And a third thermometer 10 and a second pressure transmitter 9 are sequentially arranged on a pipeline between the regulating valve 11 and the second water outlet shutoff valve 8 and are used for monitoring water outlet parameters of the thermal regulating water outlet of the hot water energy storage device 1.
The second inlet pipe still be equipped with the third valve 7 that closes off hot regulation water intaking on the road for reform transform the wall of the interface of reserving in earlier stage the second valve 3 that closes that intakes and the third valve 7 that closes that intake between be equipped with flowmeter 4, fourth thermometer 5 and second pressure transmitter 6 in proper order, be used for the monitoring to get into the parameter of intaking of hot regulation water inlet of hot water energy memory 1.
And a first thermometer 2 for judging the energy storage fullness is arranged on the hot water energy storage device 1. The system also comprises a heat supply network water supply supplement pipeline 19, and the heat supply network water supply supplement pipeline 19 is also communicated with the heat supply network water return pipeline.
The low-temperature economizer 18 absorbs the flue gas at the mouth of the boiler flue gas well and transfers the heat of the flue gas to the hot circulating water of the low-temperature economizer 18, and meanwhile, the low-temperature economizer 18 discharges the flue gas to the dust remover.
The utility model discloses utilize hot water energy memory 1, absorb the heat of low temperature economizer play water (hot water) at boiler load peak period and carry out the energy storage, load valley period releases heat and heats the direct external heat supply of heat supply network water (hot regulation water), control the governing valve 15 that sets up on the low temperature economizer play water heat pipeline of current and the governing valve 11 on the hot water energy memory 1's the hot regulation water outlet pipe, when boiler load is in peak period, and heating load is in the valley period, adjust the governing valve 15 that sets up on the little low temperature economizer outlet pipe, and adjust the first play water shutoff valve 17 on the first outlet pipe of little hot water energy memory 1, at this moment, hot water energy memory 1 is in the heat-retaining state; when the boiler load is in a low valley period and the heating load is in a peak period, opening the large adjusting door 15, and adjusting the adjusting valve 11 arranged on the second water outlet pipeline of the large hot water energy storage device 1, wherein at the moment, the hot water energy storage device 1 is in a heat release state; the hot water quantity entering the hot water energy storage device and the outlet water temperature of the hot water energy storage device thermal regulation water can be effectively controlled at two ends of the boiler load and the heating heat, the adaptability of the boiler load and the heating heat load is improved, the reasonable allocation of the boiler load and the heating load in the peak valley period is realized, and the requirement of the heating heat load is met and ensured.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. A heat supply network water supply heat storage and storage heat circulation adjusting system is characterized by comprising a low-temperature economizer (18) used for heating heat supply network water, wherein a water outlet of the low-temperature economizer (18) is communicated with a heat supply network water supply pipeline through a pipeline, and a heat supply network water return pipeline is communicated with a water inlet of the low-temperature economizer (18) through a pipeline;
a water outlet of the low-temperature economizer (18) is communicated with a primary water inlet of the hot water energy storage device (1) through a first water inlet pipeline, a primary water outlet of the hot water energy storage device (1) is communicated with a return water pipeline of the heat supply network through a first water outlet pipeline to form a heat absorption loop, and the heat absorption loop is used for absorbing heat of the hot water energy storage device (1) in the peak period of boiler load;
the hot-water supply network return pipeline is communicated with a secondary water inlet of the hot-water energy storage device (1) through a second water inlet pipeline, and a secondary water outlet of the hot-water energy storage device (1) is communicated with a hot-water supply network pipeline through a second water outlet pipeline to form a heat release loop for releasing heat of the hot-water energy storage device (1) in a boiler load valley period;
one end of the first water inlet pipeline is communicated with a connecting pipeline between a water outlet of the low-temperature economizer (18) and a heat supply network pipeline, an adjusting door (15) is arranged on the connecting pipeline between the connecting joint of the first water inlet pipeline and the connecting pipeline and the heat supply network pipeline, and the adjusting door (15) controls the flow of hot water entering the hot water energy storage device (1) according to the operation load of the boiler; and the second water outlet pipeline is provided with an adjusting valve (11) for controlling the flow of the hot water outlet of the hot water energy storage device (1).
2. The heat supply network water supply heat storage and release thermal cycle regulation system of claim 1, wherein a first water inlet shutoff valve (16) is provided on the first water inlet line, and a first water outlet shutoff valve (17) is provided on the first water outlet line; a second water inlet shutoff valve (3) is arranged on the second water inlet pipeline, a second water outlet shutoff valve (8) is also arranged on the second water outlet pipeline, and the second water outlet shutoff valve (8) is arranged on the second water outlet pipeline in front of the regulating valve (11); the first water inlet shutoff valve (16), the first water outlet shutoff valve (17), the second water inlet shutoff valve (3) and the second water outlet shutoff valve (8) are all shutoff valves for overhauling the hot water energy storage device (1).
3. The heat supply network heat storage and release thermal cycle regulation system of claim 2, characterized in that a third water outlet shut-off valve (12) for shutting off the outlet of the thermal regulation water and a check valve (14) for preventing the backflow of the supply water of the heat supply network are sequentially arranged on the second water outlet pipeline, and the regulating valve (11) is arranged on the pipeline between the second water outlet shut-off valve (8) and the third water outlet shut-off valve (12); and a second thermometer (13) is arranged on a pipeline between the third water outlet shutoff valve (12) and the check valve (14), the second thermometer (13) is electrically connected with the regulating valve (11), and the regulating valve (11) controls the flow of the hot water outlet water of the hot water energy storage device (1) according to the temperature measured by the second thermometer (13).
4. The heat supply network water heat storage and release thermal cycle regulation system of claim 2, characterized in that a third thermometer (10) and a second pressure transmitter (9) are sequentially arranged on the pipeline between the regulating valve (11) and the second water outlet shutoff valve (8) for monitoring the outlet parameters of the thermal regulation water outlet of the hot water energy storage device (1).
5. The heat supply network water heat storage and release thermal cycle regulation system of claim 2, characterized in that a third water inlet shutoff valve (7) for shutting off the inflow of the thermally regulated water is further provided on the second water inlet line, and a flow meter (4), a fourth thermometer (5) and a second pressure transmitter (9) are sequentially provided between the second water inlet shutoff valve (3) and the third water inlet shutoff valve (7) for monitoring the inflow parameters of the thermally regulated water inlet into the hot water energy storage device (1).
6. The system for regulating the storage and heat circulation of the supply water heat of the heat supply network according to claim 1, characterized in that a first thermometer (2) for judging the fullness of stored energy is arranged on the hot water energy storage device (1).
7. The system for thermal cycling regulation of heat supply to a heat supply network according to any one of claims 1-6, further comprising a supply water supply supplementary pipeline (19) for the heat supply network, wherein the supply water supplementary pipeline (19) for the heat supply network is also connected to the return water pipeline for the heat supply network.
8. The heat supply network water supply heat storage and release heat cycle regulation system of any one of claims 1 to 6, characterized in that the low-temperature economizer (18) absorbs flue gas from a flue head of the boiler and transfers the heat of the flue gas to hot circulating water of the low-temperature economizer (18), and the low-temperature economizer (18) discharges the flue gas to the dust remover.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121443341.8U CN215112837U (en) | 2021-06-28 | 2021-06-28 | Heat supply network water supply heat storage and discharge heat circulation adjusting system |
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| CN202121443341.8U CN215112837U (en) | 2021-06-28 | 2021-06-28 | Heat supply network water supply heat storage and discharge heat circulation adjusting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183308A (en) * | 2022-07-22 | 2022-10-14 | 西安西热锅炉环保工程有限公司 | Flue gas waste heat utilization heat supply network stores hot governing system |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183308A (en) * | 2022-07-22 | 2022-10-14 | 西安西热锅炉环保工程有限公司 | Flue gas waste heat utilization heat supply network stores hot governing system |
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