CN214745664U - Energy-saving economizer hot water recycling device for deep peak shaving - Google Patents
Energy-saving economizer hot water recycling device for deep peak shaving Download PDFInfo
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- CN214745664U CN214745664U CN202121092780.9U CN202121092780U CN214745664U CN 214745664 U CN214745664 U CN 214745664U CN 202121092780 U CN202121092780 U CN 202121092780U CN 214745664 U CN214745664 U CN 214745664U
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Abstract
The utility model discloses an energy-saving economizer hot water recirculation device for depth peak shaving, including the economizer, economizer both sides outer wall is provided with flow pipe and outlet pipe respectively, and flow pipe one side outer wall is provided with the import collection case, and import collection case both sides outer wall is provided with recirculation pipe and feed pipe respectively, and the feed pipe outer wall is provided with the suction pump, and outlet pipe one side outer wall is provided with export collection case. The utility model discloses a set up the two-way valve, the recirculation converges collection box and third temperature sensor, control panel control two-way valve opens the one end that the intercommunication recirculation converges the collection box, hot water can converge collection incasement portion through the quick entering into recirculation of six downtheholers this moment, third temperature sensor can converge the inside hydrothermal real-time temperature transmission of collection incasement portion with the recirculation and give control panel, control panel can show hydrothermal real-time temperature on the screen, let the staff can know the real-time temperature who is used for hot water circulation's water constantly.
Description
Technical Field
The utility model relates to a power generation boiler technical field especially relates to an energy-saving economizer hot water recirculation device for deep peak shaving.
Background
At present, the environment protection situation is severe, and most coal-fired power plants realize ultralow emission. The development of wind power and solar energy is rapid, the usable hours of the coal-fired unit are greatly reduced, some coal-fired units are in a standby or low-load operation state, and a power grid company also requires to increase the deep peak regulation capacity of the thermal power unit, under the situation, a boiler of the coal-fired unit is required to operate under the load of less than 50%, however, under the low-load operation mode, the flue gas temperature of a denitration system cannot meet the denitration input condition, so that a denitration facility cannot be normally put into operation, and the standard emission of nitrogen oxides is influenced. The boiler feed water temperature is improved, the heat absorption capacity of the economizer is reduced, and the flue gas temperature at the outlet of the economizer is improved in a hot water recycling mode of the economizer.
Through search, the chinese patent application No. CN201810934640.8 discloses an economizer hot water recirculation system suitable for a subcritical drum furnace generator set and a working method thereof, including an economizer, a drum, a downcomer and a water feed pipe, wherein a water outlet of the economizer, the drum and the downcomer are sequentially communicated, and the water feed pipe is communicated with an inlet of the economizer.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an energy-saving economizer hot water recycling device for deep peak shaving.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an energy-saving economizer hot water recycling device for deep peak shaving comprises an economizer, wherein the outer walls of two sides of the economizer are respectively provided with a water feeding pipe and a water discharging pipe, the outer wall of one side of the water feeding pipe is provided with an inlet header, the outer walls of two sides of the inlet header are respectively provided with a recycling pipe and a water feeding pipe, the outer wall of the water feeding pipe is provided with a water suction pump, the outer wall of one side of the water discharging pipe is provided with an outlet header, the outer wall of the bottom of the outlet header is provided with three water guide pipes, the outer walls of the bottoms of the three water guide pipes are provided with a steam pocket, the outer wall of the bottom of the steam pocket is provided with six descending pipes, the outer walls of the bottoms of the six descending pipes are respectively provided with six two-way valves, the outer walls of two sides of the two-way valves are respectively provided with a recycling and converging header and a boiler water recycling and a collecting header, the outer wall of one side of the recycling and converging header is provided with a third temperature sensor and a control panel, and the outer wall of the bottom of the recycling and converging header is provided with a water suction pipe, the drinking-water pipe outer wall is provided with hot water circulating pump, and drinking-water pipe one side outer wall cup joints on the outer wall of recirculation pipe, and hot water circulating pump, third temperature sensor, two-way valve, suction pump respectively with control panel electric connection.
As a further aspect of the present invention: the outer walls of two sides of the inlet header are respectively provided with a first check valve and a second check valve, the first check valve is sleeved on the outer wall of the recirculation pipe, and the second check valve is sleeved on the outer wall of the water supply pipe.
As a further aspect of the present invention: and a second temperature sensor is arranged on the outer wall of one side of the outlet header and is electrically connected with the control panel.
As a further aspect of the present invention: import collection case one side outer wall is provided with first temperature sensor, first temperature sensor and control panel electric connection.
As a further aspect of the present invention: the outer wall of the recycling convergence box is provided with a heat preservation layer, and the control panel is arranged on the outer wall of one side of the heat preservation layer.
As a further aspect of the present invention: the inner wall of one side of the recycling and gathering box is provided with a water level sensor which is electrically connected with the control panel.
As a further aspect of the present invention: the outer wall of the top of the recycling and converging tank is provided with a warning lamp, and the warning lamp is electrically connected with the control panel.
As a further aspect of the present invention: the outer wall of the recirculation pipe is provided with a drain valve, the outer wall of the bottom of the recirculation convergence header is provided with a water pumping valve, the water pumping valve is sleeved on the outer wall of the water pumping pipe, and the water pumping valve is electrically connected with the control panel.
The utility model has the advantages that:
1. through the arrangement of the two-way valve, the recirculation convergence header and the third temperature sensor, the control panel controls the two-way valve to open one end communicated with the recirculation convergence header, hot water can rapidly enter the recirculation convergence header through six descending pipes at the moment, the third temperature sensor can transmit the real-time temperature of the hot water in the recirculation convergence header to the control panel, the control panel can display the real-time temperature of the hot water on a screen to enable a worker to know the real-time temperature of the water for hot water circulation constantly, the hot water circulating pump is opened at the moment, the hot water in the recirculation convergence header is sent to the recirculation pipe through the water pumping pipe by the hot water circulating pump, the hot water enters the inlet header through the recirculation pipe, the temperature of the water heated in the economizer is rapidly increased, and the economizer can absorb less heat in flue gas when heating the water in the economizer, thereby meeting the deep peak regulation capacity of the generator set.
2. Through setting up first temperature sensor and import collection case, first temperature sensor can carry out real-time detection to the temperature of the inside water of keeping in of import collection case, then give control panel with data transmission, when the inside temperature of import collection case is less than the setting value, in order to avoid the heat in the too much absorption flue gas of economizer, control panel can control the suction pump and reduce the volume of drawing water this moment, control hot water circulating pump increases the water delivery capacity simultaneously, let the inside hot water of import collection case increase, thereby improve the inside temperature of import collection case fast, regulate and control through above-mentioned step, can let the inside temperature of import collection case maintain the setting value always, thereby the stability of hot water at the circulating device function has been guaranteed.
3. Through setting up water pumping valve and drain valve, when generating set was in normal load operation, just need not hot water at the circulating device operation this moment, control panel can control two-way valve and close the valve that accesss to the recirculation and converge the collection case this moment, then control panel control hot water circulating pump converges the recirculation and gathers the hot water of collection incasement portion and take out futilely, then control water pumping valve is closed, thereby let the recirculation converge the collection incasement portion and be in encapsulated situation, staff's accessible is opened the drain valve and is discharged the deposit water of recirculation pipe and suction pipe inside simultaneously, let whole hot water recirculating device inside not have unnecessary deposit water when not using, the life of device has been improved.
Drawings
Fig. 1 is a schematic structural view of a hot water recycling device of an energy-saving economizer for deep peak shaving provided by the present invention;
fig. 2 is a schematic side view of the energy-saving economizer hot water recirculation device for deep peak shaving according to the present invention;
FIG. 3 is a schematic view of the recycling and collecting box structure of the energy-saving economizer hot water recycling device for deep peak shaving provided by the present invention;
fig. 4 is a schematic circuit flow diagram of an energy-saving economizer hot water recirculation device for deep peak shaving provided by the present invention.
In the figure: 1-an economizer, 2-an inlet header, 3-a first check valve, 4-a first temperature sensor, 5-a recirculation pipe, 6-a drain valve, 7-a hot water circulation pump, 8-a water pumping pipe, 9-a control panel, 10-a water pumping valve, 11-a two-way valve, 12-a downcomer, 13-a drain pipe and 14-a furnace water circulation converging header, 15-steam drum, 16-water guide pipe, 17-outlet header, 18-water supply pipe, 19-water pump, 20-second check valve, 21-water supply pipe, 22-water outlet pipe, 23-second temperature sensor, 24-recirculation confluence header, 25-warning lamp, 26-third temperature sensor, 27-water level sensor and 28-heat insulation layer.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
An energy-saving economizer hot water recycling device for deep peak shaving is disclosed, as shown in fig. 1-4, comprising an economizer 1, wherein the outer walls of two sides of the economizer 1 are respectively provided with a water feeding pipe 21 and a water discharging pipe 22, the outer wall of one side of the water feeding pipe 21 is provided with an inlet header 2, the outer walls of two sides of the inlet header 2 are respectively provided with a recycling pipe 5 and a water feeding pipe 18, the outer wall of the water feeding pipe 18 is provided with a water suction pump 19, the outer wall of one side of the water discharging pipe 22 is provided with an outlet header 17, the outer wall of the bottom of the outlet header 17 is provided with three water guide pipes 16, the outer wall of the bottom of the three water guide pipes 16 is provided with a steam pocket 15, the outer wall of the bottom of the steam pocket 15 is provided with six down pipes 12, the outer walls of the bottoms of the six down pipes 12 are respectively provided with six two-way valves 11, the inner walls of the six-way valves 11 are respectively provided with six water discharging pipes 13, the outer walls of two sides of the two discharging pipes 13 are respectively provided with a recycling and converging header 24 and a boiler water recycling and a converging header 14, the outer wall of one side of the recirculation convergence box 24 is provided with a third temperature sensor 26 and a control panel 9, the outer wall of the bottom of the recirculation convergence box 24 is provided with a water pumping pipe 8, the outer wall of the water pumping pipe 8 is provided with a hot water circulating pump 7, the outer wall of one side of the water pumping pipe 8 is sleeved on the outer wall of the recirculation pipe 5, and the hot water circulating pump 7, the third temperature sensor 26, the two-way valve 11 and the water pumping pump 19 are respectively electrically connected with the control panel 9.
To avoid the backflow phenomenon of water temporarily stored in the inlet header 2; as shown in fig. 1 and fig. 2, the outer walls of both sides of the inlet header 2 are respectively provided with a first check valve 3 and a second check valve 20, the first check valve 3 is sleeved on the outer wall of the recirculation pipe 5, and the second check valve 20 is sleeved on the outer wall of the water supply pipe 18; through setting up first check valve 3 and second check valve 20, can avoid the inside water of keeping in of import collection case 2 effectively to take place backward flow phenomenon because of the water pressure that constantly rises, improved the stability that import collection case 2 supplied water.
In order to know the real-time temperature of the water heated by the economizer 1 at any time; as shown in fig. 2, a second temperature sensor 23 is disposed on an outer wall of one side of the outlet header 17, and the second temperature sensor 23 is electrically connected to the control panel 9; through setting up second temperature sensor 23, second temperature sensor 23 can give control panel 9 with the inside hot water's of keeping in real-time temperature transmission of export header 17, and control panel 9 can be with data display on the screen to let the staff can know the real-time temperature of the water that economizer 1 heated out in real time.
In order to be able to effectively control the temperature of the water fed into the interior of the economizer 1 by the inlet header 2; as shown in fig. 1, a first temperature sensor 4 is arranged on an outer wall of one side of the inlet header 2, the first temperature sensor 4 is electrically connected with the control panel 9, and the types of the first temperature sensor 4, the second temperature sensor 23 and the third temperature sensor 26 are GX18B 20; through setting up first temperature sensor 4 and import collection case 2, first temperature sensor 4 can carry out real-time detection to the temperature of the inside water of keeping in of import collection case 2, then give control panel 9 with data transmission, when the inside temperature of import collection case 2 is less than the setting value, in order to avoid the heat in the too much absorption flue gas of economizer 1, control panel 9 can control suction pump 19 this moment and reduce the volume of drawing water, control hot water circulating pump 7 simultaneously and increase the water delivery volume, let the inside hot water of import collection case 2 increase, thereby improve the inside temperature of import collection case 2 fast, regulate and control through above-mentioned step, can let the inside temperature of import collection case 2 maintain the setting value always, thereby the stability of hot water at the circulating device function has been guaranteed.
To improve the ability of the recirculating header 24 to store hot water; as shown in fig. 3, the outer wall of the recirculation and collection box 24 is provided with an insulating layer 28, and the control panel 9 is arranged on the outer wall of one side of the insulating layer 28; through setting up heat preservation 28, can improve the recirculation and meet header 24 to hydrothermal heat preservation effect, avoid thermal loss to improved heat utilization rate, heat preservation 28 also can play fine thermal-insulated effect simultaneously, avoids the recirculation to meet the problem appearance that header 24 outer wall high temperature influences equipment normal operating on every side.
In order to regulate the level of water stored inside the recirculating and collecting tank 24; as shown in fig. 3, a water level sensor 27 is arranged on the inner wall of one side of the recirculation and collection tank 24, the water level sensor 27 is electrically connected with the control panel 9, and the model of the water level sensor 27 is AL-530 AE; through setting up water level sensor 27 and two-way valve 11, when the water level that the inside water of collection case 24 was deposited was crossed to the recirculation low, then can't satisfy hot water circulating pump 7's the needs of drawing water, control panel 9 can meet the two-way valve 11 of the appropriate quantity of height control of the inside water level of collection case 24 according to the recirculation this moment and will connect stove water circulation to meet the valve of collection case 14 one side and close, it joins the inside hot-water flow of collection case 24 to increase the entering recirculation, thereby improve the recirculation fast and meet the inside water level of collection case 24, let the recirculation join the inside water storage volume of collection case 24 and can satisfy hot water circulating pump 7 the volume of drawing water under the different situation, the effectual stability that has improved hot water at the circulating device operation.
To avoid scalding workers by the recirculating collection box 24; as shown in fig. 1, a warning light 25 is arranged on the outer wall of the top of the recirculation and collection box 24, and the warning light 25 is electrically connected with the control panel 9; through setting up warning light 25, when the inside temperature of collection case 24 was too high when recirculating, control panel 9 can control warning light 25 and light, reminds the staff not to touch the recirculation with trade and converges collection case 24, avoids the recirculation to converge collection case 24 and scalds the staff.
The working principle is as follows: firstly, a water suction pump 19 is turned on, the water suction pump 19 sends normal temperature water into an inlet header 2 through a water supply pipe 18, then the water enters the interior of an economizer 1 through a water supply pipe 21, the economizer 1 heats the water in the interior through flue gas generated by a boiler, the heated water is discharged into an outlet header 17 through a water outlet pipe 22, then the water is sent into a steam pocket 15 through a water guide pipe 16, the steam pocket 15 sends hot water into a boiler water circulation converging header 14 through a descending pipe 12, the hot water stored in the boiler water circulation converging header 14 can be used by other equipment needing the hot water, when a coal-fired unit is in a low-load operation state, a control panel 9 controls a two-way valve 11 to open and communicate with one end of a recirculation converging header 24 and a third temperature sensor 26, and at the moment, the hot water quickly enters the recirculation converging header 24 through six descending pipes 12, at this time, the third temperature sensor 26 transmits the real-time temperature of the hot water in the recirculating convergence header 24 to the control panel 9, the control panel 9 displays the real-time temperature of the hot water on the screen, so that the working personnel can know the real-time temperature of the water for hot water circulation at any time, at this time, the hot water circulating pump 7 is turned on, the hot water circulating pump 7 sends the hot water in the recirculating convergence header 24 into the recirculating pipe 5 through the water pumping pipe 8, the hot water enters the inlet header 2 through the recirculating pipe 5, so that the temperature of the water heated in the economizer 1 is rapidly increased, the economizer 1 can absorb less heat in flue gas when heating the water in the economizer 1, the smoke temperature can be kept above 285 ℃ MW when the generator set maintains 120 load, the capacity of deep peak regulation of the generator set is met, and by arranging the first check valve 3 and the second check valve 20, the backflow phenomenon of water temporarily stored in the inlet header 2 can be effectively avoided due to the constantly raised water pressure, the second temperature sensor 23 can transmit the real-time temperature of the temporarily stored hot water in the outlet header 17 to the control panel 9, the control panel 9 can display data on a screen, the first temperature sensor 4 can detect the water temperature of the water temporarily stored in the inlet header 2 in real time and then transmit the data to the control panel 9, when the water temperature in the inlet header 2 is lower than a set value, in order to avoid the economizer 1 absorbing excessive heat in flue gas, the control panel 9 can control the water suction pump 19 to reduce the water pumping amount and control the hot water circulating pump 7 to increase the water delivery amount at the same time, so that the hot water in the inlet header 2 is increased, thereby rapidly increasing the water temperature in the inlet header 2, the water temperature in the inlet header 2 can be kept at the set value all the time by regulating and controlling through the steps, through setting up heat preservation 28, can improve the recirculation and join header box 24 to hydrothermal heat preservation effect, join the water level that header box 24 inside was deposited water when the recirculation crosses lowly, then can't satisfy hot water circulating pump 7's the needs of drawing water, control panel 9 can join header box 24 inside height control appropriate quantity's two-way valve 11 according to the recirculation this moment and will connect stove water circulation and join header box 14 one side's valve and close, it joins header box 24 inside hydrothermal flow to strengthen the entering recirculation, thereby improve the recirculation fast and join header box 24 inside water level, let the recirculation join header box 24 inside the water storage volume can satisfy hot water circulating pump 7 the pumping capacity under different circumstances, join header box 24 inside temperature when the recirculation when too high, control panel 9 can control warning light 25 and shine, remind the staff not to trade the contact recirculation and join header box 24.
Example 2
An energy-saving economizer hot water recirculation device for deep peak regulation is disclosed, which avoids long-time water storage in a recirculation pipe 5 and a recirculation convergence header 24 when a generator set normally operates; as shown in fig. 1, a drain valve 6 is arranged on the outer wall of the recirculation pipe 5, a water pumping valve 10 is arranged on the outer wall of the bottom of the recirculation and collection tank 24, the water pumping valve 10 is sleeved on the outer wall of a water pumping pipe 8, and the water pumping valve 10 is electrically connected with a control panel 9; through setting up water pumping valve 10 and drain valve 6, when generating set was operated with normal load, just this moment need not hot water at the circulating device operation, control panel 9 can control two-way valve 11 and close the valve that leads to recirculation and converge header 24 this moment, then control panel 9 control hot water circulating pump 7 will recirculate and converge the inside hot water of header 24 and take out futilely, then control water pumping valve 10 closes, thereby let the recirculation converge header 24 inside and be in encapsulated situation, staff's accessible opens drain valve 6 simultaneously and discharge the inside deposit water of recirculation pipe 5 and drinking-water pipe 8, let whole hot water device inside not have unnecessary deposit water when not using, the life of circulating device has been improved.
The working principle is as follows: when the generator set runs at normal load, hot water is not needed to run in the circulating device at the moment, the control panel 9 can control the two-way valve 11 to close a valve leading to the recirculation convergence header 24, then the control panel 9 controls the hot water circulating pump 7 to pump out hot water in the recirculation convergence header 24, and then controls the water pumping valve 10 to close, so that the interior of the recirculation convergence header 24 is in a sealed state, meanwhile, a worker can open the water discharging valve 6 to discharge water stored in the recirculation pipe 5 and the water pumping pipe 8, and the whole hot water recirculation device is free of redundant water stored in the interior when not in use.
The existing hot water recycling device directly sends hot water into the recycling pipe 5 through the downcomer 12 for recycling, cannot accurately control the water temperature in the inlet header 2, is easy to cause fluctuation of hot water recycling effect, controls the water level in the recycling converging header 24 by controlling the opening and closing of a proper number of two-way valves 11 so as to meet the requirements of different water pumping quantities of the hot water circulating pump 7, meanwhile, the water temperature in the inlet header 2 is detected in real time, when the water temperature is lower than or higher than a set value, the amount of hot water pumped by the hot water circulating pump 7 is increased or decreased, the pumping amount of the pumping pump 19 is decreased or increased, thereby improve or reduce the inside temperature of import collection case 2, guarantee that the heat absorption capacity of economizer 1 maintains required degree, let hot water circulating device can be better manage and control the heat absorption capacity of economizer 1.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. An energy-saving economizer hot water recycling device for deep peak shaving comprises an economizer (1) and is characterized in that the outer walls of two sides of the economizer (1) are respectively provided with a water feeding pipe (21) and a water discharging pipe (22), the outer wall of one side of the water feeding pipe (21) is provided with an inlet header (2), the outer walls of two sides of the inlet header (2) are respectively provided with a recirculation pipe (5) and a water feeding pipe (18), the outer wall of the water feeding pipe (18) is provided with a water suction pump (19), the outer wall of one side of the water discharging pipe (22) is provided with an outlet header (17), the outer wall of the bottom of the outlet header (17) is provided with three water guide pipes (16), the outer wall of the bottom of the three water guide pipes (16) is provided with a steam drum (15), the outer wall of the bottom of the steam drum (15) is provided with six down pipes (12), the outer walls of the bottoms of the six down pipes (12) are respectively provided with six two-way valves (11), and the inner walls of the six two-way valves (11) are respectively provided with six water discharging pipes (13), two drain pipe (13) both sides outer wall is provided with the recirculation respectively and joins header tank (24) and stove water circulation and joins header tank (14), the recirculation joins header tank (24) one side outer wall and is provided with third temperature sensor (26) and control panel (9), the recirculation joins header tank (24) bottom outer wall and is provided with drinking-water pipe (8), drinking-water pipe (8) outer wall is provided with hot-water circulating pump (7), drinking-water pipe (8) one side outer wall cup joints on the outer wall of recirculation pipe (5), hot-water circulating pump (7), third temperature sensor (26), two-way valve (11), drinking-water pump (19) respectively with control panel (9) electric connection.
2. The energy-saving economizer hot water recycling device for deep peak shaving according to claim 1, wherein the outer walls of the two sides of the inlet header (2) are respectively provided with a first check valve (3) and a second check valve (20), the first check valve (3) is sleeved on the outer wall of the recycling pipe (5), and the second check valve (20) is sleeved on the outer wall of the water supply pipe (18).
3. The energy-saving economizer hot water recycling device for deep peak shaving according to claim 2, characterized in that a second temperature sensor (23) is arranged on the outer wall of one side of the outlet header (17), and the second temperature sensor (23) is electrically connected with the control panel (9).
4. The energy-saving economizer hot water recycling device for deep peak shaving according to claim 3, characterized in that the first temperature sensor (4) is arranged on the outer wall of one side of the inlet header (2), and the first temperature sensor (4) is electrically connected with the control panel (9).
5. The energy-saving economizer hot water recycling device for deep peak shaving according to claim 4, characterized in that the recycling confluence header (24) is provided with an insulating layer (28) on the outer wall, and the control panel (9) is arranged on one side of the insulating layer (28).
6. The energy-saving economizer hot water recycling device for deep peak shaving according to claim 5, characterized in that a water level sensor (27) is arranged on one side of the inner wall of the recycling and converging header (24), and the water level sensor (27) is electrically connected with the control panel (9).
7. The energy-saving economizer hot water recycling device for deep peak shaving according to claim 6, characterized in that the outer wall of the top of the recycling and converging tank (24) is provided with a warning lamp (25), and the warning lamp (25) is electrically connected with the control panel (9).
8. The energy-saving economizer hot water recycling device for deep peak shaving according to claim 7, wherein the outer wall of the recycling pipe (5) is provided with a drain valve (6), the outer wall of the bottom of the recycling converging header (24) is provided with a water pumping valve (10), the water pumping valve (10) is sleeved on the outer wall of the water pumping pipe (8), and the water pumping valve (10) is electrically connected with the control panel (9).
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| CN202121092780.9U CN214745664U (en) | 2021-04-26 | 2021-04-26 | Energy-saving economizer hot water recycling device for deep peak shaving |
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| CN202121092780.9U CN214745664U (en) | 2021-04-26 | 2021-04-26 | Energy-saving economizer hot water recycling device for deep peak shaving |
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