CN103104978B - A kind of storage tank and use the storage-type electric water heater of this storage tank - Google Patents

A kind of storage tank and use the storage-type electric water heater of this storage tank Download PDF

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Publication number
CN103104978B
CN103104978B CN201110357913.5A CN201110357913A CN103104978B CN 103104978 B CN103104978 B CN 103104978B CN 201110357913 A CN201110357913 A CN 201110357913A CN 103104978 B CN103104978 B CN 103104978B
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water
water inlet
tank
water tank
storage tank
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CN103104978A (en
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董明珠
谭建明
李绍斌
柳飞
袁明征
曹浩
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The invention discloses a kind of storage tank, it comprises inner water tank, circulation water inlet pipe, recycling outlet, cold water inlet and hot water outlet pipe, inner water tank is one, circulation water inlet pipe and hot water outlet pipe are all located at the top of inner water tank, recycling outlet is located at the bottom of inner water tank, is also provided with at least 3 temperature sensors for detecting respectively diverse location temperature in inner water tank on inner water tank; Or inner water tank is at least two, all inner water tanks from front to back successively through tube connector series connection, are also provided with the temperature sensor for detecting respectively diverse location temperature in inner water tank by water (flow) direction on inner water tank. Storage tank of the present invention adopts top-down mode of heating, simultaneously by the temperature feedback of multiple temperature sensors of arranging, realizes the flexible modulation to water tank hot water capacity from top to bottom, has met the demand of different water numbers. Meanwhile, the invention also discloses a kind of storage-type electric water heater that uses above-mentioned storage tank.

Description

A kind of storage tank and use the storage-type electric water heater of this storage tank
Technical field
The present invention relates to a kind of storage tank for water heater, and use the storage-type electric water heater of this storage tank.
Background technology
Existing storage-type electric water heater is mainly made up of heat exchanger, water pump and storage tank, and water pump is extracted into heat exchanger by fraction water and addsHeat heats up, and returns storage tank, so circulation, and by all water heating in storage tank, there is following problem in it: (1) pinWhole water tank inner storing water is heated, cannot carry out according to the difference of water number the flexible modulation of water tank hot water capacity, andAnd after hot water is finished, need water tank inner cold water by the time just can reuse hot water after being all heated, the stand-by period is long; (2) fewWhen number people water, the hot water of whole water tank toos many or too much for use, and has the problem of thermal waste; (3) rate of thermal water utilization is low, does not increaseHold function, need to be equipped with large capacity tank and could meet water demand, cost is high, waste resource.
Summary of the invention
First technical problem to be solved by this invention is to provide a kind of hot water capacity adjustable storage tank, to meet notWith the demand of water number, reduce thermal waste, energy-conserving and environment-protective, and shorten the stand-by period of again using hot water.
Second technical problem to be solved by this invention is to provide a kind of storage-type electric water heater that uses above-mentioned storage tank.
The present invention solves the technical scheme that above-mentioned first technical problem adopts: a kind of storage tank, it comprise inner water tank,Circulation water inlet pipe, recycling outlet, cold water inlet and hot water outlet pipe, circulation water inlet pipe, recycling outlet, cold water enterWater pipe and hot water outlet pipe are all communicated with inner water tank, and described inner water tank is one, described circulation water inlet pipe and described hot waterOutlet pipe is all located at the top of inner water tank, and described recycling outlet is located at the bottom of inner water tank, on inner water tank, also establishesBe useful at least 3 temperature sensors that detect respectively diverse location temperature in inner water tank; Or described inner water tank extremelyBe less two, all inner water tanks are connected through tube connector from front to back successively by water (flow) direction, before the first end of tube connector stretches intoThe bottom of an inner water tank, its second end stretches into the top of a rear inner water tank, described circulation water inlet pipe and described hot waterOutlet pipe is located at the top of a most front inner water tank, and described recycling outlet is located at the bottom of a last inner water tank,On inner water tank, be also provided with the temperature sensor for detecting respectively diverse location temperature in inner water tank.
Preferably, the volume of the described inner water tank between adjacent two the described temperature sensors of water (flow) direction is 40~70L.
Preferably, the volume of the described inner water tank between adjacent two the described temperature sensors of water (flow) direction equates.
Preferably, the first end of described circulation water inlet pipe stretches in described inner water tank, and the first end of circulation water inlet pipe and withSpacing >=50mm between its adjacent described temperature sensor.
Preferably, the sealing of the mouth of pipe of the first end of described circulation water inlet pipe, establishes in the tube wall bottom of the first end of circulation water inlet pipeThere is through hole.
Preferably, the first end of described recycling outlet stretches in described inner water tank, and the first end of recycling outlet and withSpacing >=50mm between its adjacent described temperature sensor.
Preferably, the sealing of the mouth of pipe of the first end of described recycling outlet, establishes in the tube wall bottom of the first end of recycling outletThere is through hole.
Preferably, described cold water inlet is arranged on the described inner water tank of described recycling outlet below, this cold water water inletThe first end of pipe stretches in described inner water tank; Or, also comprising triple valve, the first interface of triple valve and described cold water enterThe first end of water pipe connects, and the second interface of triple valve is connected with the second end of described recycling outlet.
Preferably, described storage tank also comprises heat exchanger and water pump, the second end of the water inlet of water pump and described recycling outletConnect, the delivery port of water pump is communicated with the water inlet of heat exchanger, the second end of the delivery port of heat exchanger and described circulation water inlet pipeConnect; Or the water inlet of water pump is communicated with the 3rd interface of described triple valve, the delivery port of water pump and the water inlet of heat exchangerMouth is communicated with, and the delivery port of heat exchanger is connected with the second end of described circulation water inlet pipe.
Preferably, described water pump is variable frequency pump.
Preferably, described storage tank also comprises tank shell, is provided with cooling water inlet, hot water outlet, refrigerant on tank shellImport and refrigerant exit, described inner water tank, described circulation water inlet pipe, described recycling outlet, described hot water outlet pipe,Described cold water inlet, described heat exchanger and described water pump are all positioned at tank shell, the second end of described cold water inlet withDescribed cooling water inlet connects, and the second end of described hot water outlet pipe is connected with described hot water outlet, the entrance point of described heat exchangerBe communicated with described refrigerant import and described refrigerant exit through coolant connecting tube respectively with the port of export.
The present invention solves the technical scheme that above-mentioned second technical problem adopt: a kind of storage-type electric water heater, comprises main frameWith described storage tank.
Storage tank of the present invention, its circulation water inlet pipe and hot water outlet pipe are arranged on the top of inner water tank, and recycling outlet is establishedPut the bottom at inner water tank, circulation water inlet pipe is arranged on the top of inner water tank, makes from heat exchanger hot water out directly logicalEnter inner water tank top, utilize the feature that hot water is less than cold water density, realize the top-down mode of heating of inner water tank. WithTime, by the temperature feedback of multiple temperature sensors of arranging from top to bottom, hot water amount that can flexible modulation inner water tank, alsoBe the leveled heating of inner water tank. Compared with prior art, advantage of the present invention is:
(1) realize the flexible modulation to water tank hot water capacity, met the demand of different water numbers, and, hot water worked asAfter being finished, only need to wait for the very short time, tank top just can a certain amount of hot water of output, can use, and has greatly shortenedThe stand-by period of water;
(2) the directly-heated mode of heating of the large temperature difference of employing low discharge, makes the hot water that enters water tank after heating reach design temperature;
(3) make water heater for capacity increasing function, reduced the volume of water tank, saved material, reduced cost;
(4) make water heater for subtracting appearance function, reduced thermal waste, energy-conserving and environment-protective;
(5) in addition, by using variable frequency pump, guarantee that heat exchanger leaving water temperature stablizes constantly, ensured inner water tank hot waterThe temperature stability of water outlet, to improve water comfortableness.
Brief description of the drawings
Fig. 1 is the structural representation of storage tank embodiment 1 provided by the invention;
Fig. 2 is the structural representation of storage-type electric water heater provided by the invention;
Fig. 3 is the structural representation of storage tank embodiment 2 provided by the invention;
Fig. 4 is the structural representation of storage tank embodiment 3 provided by the invention.
Description of reference numerals: 1-storage tank 1; 101-tank shell; 101a-hot water outlet; The import of 101b-refrigerant; 101c-is coldMatchmaker's outlet; 101d-cooling water inlet; 102-inner water tank; 102a-inner water tank; 2-recycling outlet; 2a-through hole; 3-circulationWater inlet pipe; 3a-through hole; 4-hot water outlet pipe; 51,52,53,54,5n-temperature-sensitive bag; 6-tube connector; 7-triple valve; 8-Variable frequency pump; 9-heat exchanger; 10-temperature-sensitive bag; 11-cold water inlet; 11a-through hole; 12-main frame; 13,14,15,16-Coolant connecting tube.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated:
Embodiment 1
See Fig. 1, storage tank 1 mainly by tank shell 101, inner water tank 102, circulation water inlet pipe 3, recycling outlet 2,Cold water inlet 11, hot water outlet pipe 4, variable frequency pump 8 and heat exchanger 9 form, and wherein, inner water tank 102 is cylinderThe bodily form, is provided with circulation water inlet pipe 3 and hot water outlet pipe 4 on the top of inner water tank 102, establish in the bottom of inner water tank 102There is recycling outlet 2, on inner water tank 102, be from top to bottom provided with for detecting respectively the interior diverse location temperature of inner water tank 1025 temperature-sensitive bags (being temperature sensor) 51,52,53,54, the 5n of degree, temperature-sensitive bag inserts inner water tank 102 inside.
In order inner water tank 102 leaving water temperatures accurately to be detected, highly the highest temperature-sensitive bag 51 positions will be positioned at water tank as far as possibleCourage 102 tops. In order to meet the requirement of welding procedure, highly the highest temperature sensor 51 and the sidewall of inner water tank 102Distance L 1 >=80mm between upper end, gets minimum of a value conventionally. First the position of highly minimum temperature-sensitive bag 5n will meet weldingTechnological requirement, the distance L 3 >=80mm between highly minimum temperature sensor and the side wall lower ends of inner water tank 102, itsThe less important Inlet and outlet water of avoiding recycling outlet 2 is because of the stirring of the current impact on temperature-sensitive bag 5n. Temperature sensor 51 and temperatureThe number of the temperature-sensitive bag between sensor 5n is determined by the total measurement (volume) of inner water tank 102 and the volume V of adjacent two temperature-sensitive parlorsFixed, wherein V is from reference to value water supply standard (55 DEG C of water temperatures) 40~70L/ people, the spacing L of adjacent two temperature-sensitive bags byV and inner water tank 102 diameter D determine: L=4 × 106V/(πD2)mm。
The first end level of circulation water inlet pipe 3 stretches in inner water tank 102, and the sealing of the mouth of pipe of this first end, in this circulationThe tube wall bottom of the first end of water inlet pipe 3 is provided with multiple through hole 3a, to prevent that circulation water inlet from causing dry to the hot water of water tank upperDisturb, affect leaving water temperature. The position one of circulation water inlet pipe 3 be will be as far as possible away from hot water outlet pipe 4 but can not be apart from too far away,The 2nd, prevent the circulation water inlet impact on temperature-sensitive bag 52, therefore, require the first end of circulation water inlet pipe 3 and be adjacentSpacing L2 >=50mm between temperature-sensitive bag 52, gets minimum of a value conventionally.
The first end of recycling outlet 2 stretches in inner water tank 102, and the mouth of pipe of this first end sealing, at this first endTube wall bottom is provided with through hole 2a. The position one of recycling outlet 2 is to reduce the impact of cold water on top hot water, the 2nd, and weaken and followWhen heating in ring, is because of the stirring of the current impact on temperature-sensitive bag 5n. Therefore, the first end of recycling outlet 2 is positioned at highly minimumThe below of temperature sensor 5n, and spacing L4 between the first end of circulation water inlet pipe 3 and the temperature-sensitive bag 5n that is adjacent>=50mm, gets minimum of a value conventionally.
Hot water outlet pipe 4 is arranged on the top of circulation water inlet pipe 3, and hot water outlet pipe 4 first end stretches into inner water tank 102In, hot water outlet pipe 4 first end upwards bends.
The first interface of triple valve 7 is connected with the first end of cold water inlet 11, the second interface and the cyclic water outlet of triple valve 7The second end of pipe 2 connects, and the 3rd interface of triple valve 7 is communicated with the water inlet of variable frequency pump 8, the water outlet of variable frequency pump 8Mouth is communicated with the water inlet of heat exchanger 9, and the delivery port of heat exchanger 9 is communicated with circulation water inlet pipe 3. By regulating variable frequency pump 8Rotating speed regulate the discharge of heat-exchange system, realized under different inflow temperatures, various heat exchange ability and ensured heat exchanger 9Leaving water temperature is stabilized in the object of setting value. Be provided with water outlet of water heater temperature-sensitive bag 10 at the water outlet of heat exchanger 9.
As can be seen here, storage tank 1 device of the present embodiment has the following advantages:
One, hot water capacity flexible modulation, has met the demand of different water numbers.
For a FCL cold water, when first heating operation, can make heat exchanger 9 water outlets steady by the rotating speed that regulates variable frequency pump 8Fix on set temperature value (as 55 DEG C). Hot water directly enters casing 1 top, according to the little feature of hot water density ratio cold water, heatWater can heat from top to bottom, by the feedback of temperature-sensitive bag 52, in the time that the temperature value of temperature-sensitive bag 52 reaches design temperature, stops addingHeat operation, only heats the hot water amount of temperature-sensitive bag 52 with upper part. In like manner, can be according to the feedback of temperature-sensitive bag 53,54,5nThe hot water amount of heating setpoint, has realized hot water capacity flexible modulation, has met the demand of different water numbers, and, work as heatAfter water is finished, only need to wait for the very short time, tank top just can a certain amount of hot water of output, can use, greatly shorteningKnow clearly stand-by period of water.
Two, there is capacity increasing function
In the time that water number increases, for utilizing to greatest extent the hot water in casing, in water, open heating operation,Directly be heated to design temperature and deliver to casing top filling into the cold running water of bottom half, in the situation that not affecting water,Increase to greatest extent water volume that can be utilized, realized the increase-volume operation of casing.
Three, there is directly-heated function
In the situation that running water temperature and heating efficiency meet certain condition, can only heat the hot water of temperature-sensitive bag 52 with upper partAmount, starts after water, and a small amount of hot water in casing top just plays cushioning effect, is not consumed, and heats fortune by startupThe hot water demand that uses that row can meet user, has realized directly-heated operation.
The structural representation that Figure 2 shows that the storage-type electric water heater that uses above-mentioned storage tank 1, storage-type electric water heater comprises main frame12 and storage tank 1, on tank shell 101, be provided with cooling water inlet 101d, hot water outlet 101a, refrigerant import 101b andRefrigerant exit 101c, inner water tank 102, circulation water inlet pipe 3, recycling outlet 2, hot water outlet pipe 4, cold water inlet11, heat exchanger 9 and variable frequency pump 8 are all positioned at tank shell 101, the second end of cold water inlet 11 and cooling water inlet 101dConnect, the second end of hot water outlet pipe 4 is connected with hot water outlet 101a, and the entrance point of heat exchanger 9 and the port of export are respectively through coldMatchmaker's tube connector 34,14 is communicated with refrigerant import 101b and refrigerant exit 101c, the refrigerant import 101b on tank shell 101Be connected with refrigerant exit and the refrigerant import of main frame 12 through coolant connecting tube 16,15 respectively with refrigerant exit 101c.
By by integrated to water circuit system and inner water tank 102 and tank shell 101, its usefulness is: (1) is logicalCross the insulation effect of heat-insulation layer on tank shell 101, while reducing water circuit system circular flow to the heat radiation of natural environment; (2)When low temp area is used in the winter time, can effectively solve the antifreeze problem of water system; (3) engineering of unit is simplified on maximizing groundInstall, when project installation, only need to connect coolant connecting tube and water inlet pipe and water outlet pipe, improve project installation efficiency, reduce project installation and takeWith.
Embodiment 2
See Fig. 3, as different from Example 1, temperature-sensitive bag is affixed on inner water tank 102 outer walls, the water inlet of water pump 8 directly withThe second end of recycling outlet 2 connects. Cold water inlet 1111 is arranged on the inner water tank 102 of recycling outlet 2 belows,The first end of cold water inlet 1111 stretches in inner water tank 102, and the sealing of the mouth of pipe of this first end, at the pipe of this first endWall bottom is provided with through hole 11a. The storage tank of the present embodiment is arranged 2 points of cold water inlet 11 and recycling outlets, makes coldWater water supply and the top that direct water of water tank bottom heating is delivered to water tank can be carried out simultaneously, have embodied better compatibilization effect.
Embodiment 3
See Fig. 4, as different from Example 2, the present embodiment has two inner water tank 102a, 102b, in two water tanksCourage 102a, 102b connect through tube connector 6 from front to back successively by water (flow) direction, and the first end of tube connector 6 stretches into previous waterThe bottom of case inner bag 102a, its second end stretches into the top of a rear inner water tank 102b, and circulation water inlet pipe 3 and hot water go outWater pipe 4 is located at the top of a most front inner water tank 102a, and recycling outlet 2 is located at a last inner water tank 102bBottom, on inner water tank 102, be also provided with 4 temperature for detecting respectively the interior diverse location temperature of inner water tank 102Sensor 51,52,53,54.
The storage tank 1 that adopts multiple inner water tanks 102 to connect has following benefit: (1) multiple inner water tanks 102 are connectedMode has been equivalent to reduce the diameter of single inner water tank 102 and has increased height, makes storage tank 1 become elongated, like this canThe impact mixing effectively to weaken hot and cold water, the mixing water yield of minimizing hot and cold water mixed layer, improves producing water ratio; (2) can makeStorage tank 1 becomes thinner, reduces installing space.
These are only specific embodiments of the invention, do not limit protection scope of the present invention with this; Do not violating structure of the present inventionAny replacement and the improvement on the basis of thinking, done, all belong to protection scope of the present invention.

Claims (12)

1. a storage tank, it comprises inner water tank, circulation water inlet pipe, recycling outlet, cold water inlet and hot water effluentPipe, circulation water inlet pipe, recycling outlet, cold water inlet and hot water outlet pipe are all communicated with inner water tank, it is characterized in that:Described inner water tank is one, and described circulation water inlet pipe and described hot water outlet pipe are all located at the top of inner water tank, described in followRing outlet pipe is located at the bottom of inner water tank, and the first end of described circulation water inlet pipe and described hot water outlet pipe's first end are along waterIn the top of radially stretching into inner water tank of case inner bag, and the first end of described circulation water inlet pipe is positioned at described hot water outlet pipe'sThe below of first end is also provided with for detecting respectively at least 3 of differing heights position temperature in inner water tank on inner water tankIndividual temperature sensor; Or described inner water tank is at least two, all inner water tanks by water (flow) direction from front to back successivelyThrough tube connector series connection, the first end of tube connector stretches into the bottom of previous inner water tank, and its second end stretches in a rear water tankThe top of courage, the first end of described circulation water inlet pipe and described hot water outlet pipe's first end radially stretch into water along inner water tankIn the top of case inner bag, and the first end of described circulation water inlet pipe is positioned at the below of described hot water outlet pipe's first end, described inRecycling outlet is located at the bottom of a last inner water tank, is also provided with for detecting respectively inner water tank on inner water tankThe temperature sensor of interior diverse location temperature.
2. storage tank according to claim 1, is characterized in that: described between adjacent two described temperature sensorsThe volume of inner water tank is 40~70L.
3. storage tank according to claim 1, is characterized in that: described between adjacent two described temperature sensorsThe volume of inner water tank equates.
4. storage tank according to claim 1, is characterized in that: the first end of described circulation water inlet pipe stretches into described waterIn case inner bag, and spacing >=50mm between the first end of circulation water inlet pipe and the described temperature sensor that is adjacent.
5. storage tank according to claim 4, is characterized in that: the mouth of pipe sealing of the first end of described circulation water inlet pipe,Tube wall bottom at the first end of circulation water inlet pipe is provided with through hole.
6. storage tank according to claim 1, is characterized in that: the first end of described recycling outlet stretches into described waterIn case inner bag, and spacing >=50mm between the first end of recycling outlet and the described temperature sensor that is adjacent.
7. storage tank according to claim 6, is characterized in that: the mouth of pipe sealing of the first end of described recycling outlet,Tube wall bottom at the first end of recycling outlet is provided with through hole.
8. according to the storage tank described in claim 1 to 7 any one, it is characterized in that: described cold water inlet is arranged on instituteState on the described inner water tank of recycling outlet below, the first end of this cold water inlet stretches in described inner water tank; Or,Also comprise triple valve, the first interface of triple valve is connected with the first end of described cold water inlet, the second interface of triple valve withThe second end of described recycling outlet connects.
9. storage tank according to claim 8, is characterized in that: also comprise heat exchanger and water pump, the water inlet of water pumpBe connected with the second end of described recycling outlet, the delivery port of water pump is communicated with the water inlet of heat exchanger, the delivery port of heat exchangerBe connected with the second end of described circulation water inlet pipe; Or the water inlet of water pump is communicated with the 3rd interface of described triple valve, waterThe delivery port of pump is communicated with the water inlet of heat exchanger, and the delivery port of heat exchanger is connected with the second end of described circulation water inlet pipe.
10. storage tank according to claim 9, is characterized in that: described water pump is variable frequency pump.
11. storage tanks according to claim 9, is characterized in that: also comprise the tank shell with heat-insulation layer,Tank shell is provided with cooling water inlet, hot water outlet, refrigerant import and refrigerant exit, described inner water tank, described circulate intoThe equal position of water pipe, described recycling outlet, described hot water outlet pipe, described cold water inlet, described heat exchanger and described water pumpIn tank shell, the second end of described cold water inlet is connected with described cooling water inlet, the second end of described hot water outlet pipeBe connected with described hot water outlet, the entrance point of described heat exchanger and the port of export respectively through coolant connecting tube and described refrigerant import andDescribed refrigerant exit is communicated with.
12. 1 kinds of storage-type electric water heaters, comprise main frame and storage tank, it is characterized in that: described storage tank is as claim 1To the storage tank described in 11 any one.
CN201110357913.5A 2011-11-11 2011-11-11 A kind of storage tank and use the storage-type electric water heater of this storage tank Active CN103104978B (en)

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CN106766215B (en) * 2016-11-14 2019-09-17 广东美的暖通设备有限公司 Temperature sensor monitoring method and device, the hot-water heating system of water tank
CN106642701A (en) * 2016-11-30 2017-05-10 浙江正理生能科技有限公司 Water heater water tank and water heater provided with same
CN108870755B (en) * 2018-05-23 2020-08-07 内蒙古博海电子科技有限责任公司 Automatic adjusting method and device for boiled water capacity of heat accumulating type water boiler
CN109008731B (en) * 2018-06-26 2024-01-12 佛山市顺德区欧必德热能科技有限公司 Bathroom cabinet
CN109059283B (en) * 2018-08-17 2023-04-07 珠海格力电器股份有限公司 Hot water system
CN109612068A (en) * 2018-10-22 2019-04-12 中山市恒乐电器有限公司 A kind of water-heater system
CN113340001A (en) * 2021-05-31 2021-09-03 美的集团武汉暖通设备有限公司 Pressure-bearing water tank, water heater and water inlet and outlet control method

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