CN100436960C - System and method of keeping normal pressure for water tank of water heater - Google Patents
System and method of keeping normal pressure for water tank of water heater Download PDFInfo
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- CN100436960C CN100436960C CNB2006100264096A CN200610026409A CN100436960C CN 100436960 C CN100436960 C CN 100436960C CN B2006100264096 A CNB2006100264096 A CN B2006100264096A CN 200610026409 A CN200610026409 A CN 200610026409A CN 100436960 C CN100436960 C CN 100436960C
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Abstract
The present invention discloses a system and method for keeping normal pressure for a water tank of a water heater. The system comprises four mutually isolated cavity bodies of which the volumes are variable, and two-position four-way reversing valves, wherein pipelines are arranged on a first cavity body and a second cavity body, and a third cavity body and a fourth cavity body are respectively connected with a hot water opening and a heat insulating water tank; the-position four-way reversing valves are arranged on the pipelines of the first and the second cavity bodies, and the two pipelines are connected with a tap water opening and the heat insulating water tank through the reversing valves. The present invention has the method that cold water enters the first cavity body, and hot water in a third cavity body is extruded out of the hot water opening; hot water in the heat insulating water tank enters a fourth cavity body, and cold water in the second cavity body enters the heat insulating water tank; the cold water is reversed to enter the second cavity body, and hot water in the fourth cavity body is extruded of the hot water opening; the hot water in the heat insulating water tank enters the third cavity body, and the cold water in the first cavity body enters the heat insulating water tank; the procedures are repeated. After the system and the method of the present invention are adopted, the heat insulating water tank does not need to load pressure, and simultaneously, the bearing pressure of water discharge is guaranteed.
Description
Technical field
The present invention relates to a kind of system and method for keeping normal pressure for water tank of water heater, the attemperater that relates in particular to a kind of water heater does not bear pressure, guarantees the system and method for water heater water outlet pressure-bearing simultaneously.
Background technology
Along with improving constantly of living standard, water heater generally enters common people family, becomes the indispensable utensil in the life.The material of the attemperater of water heater should possess enough intensity and useful life longevity.Once used polypropylene plastics and copper (press in all being used for and be no more than the i.e. 2 meters water tanks that head is pressed of 19.6kPa), zinc sheet metal etc. to make the water tank material abroad, they are owing to insufficient strength or be difficult for welding, and shortcomings such as poor reliability are seldom used now.
What generally be used for water heater is the steel enamel cistern, its advantage is the manufacturing of available thicker (about 3mm) general steel plate, welding procedure is simple, intensity, stiffness are good, endurance is better, but postwelding need carry out the enamel operation, and the anticorrosion of necessary attached in use magnesium rod, cost is higher, and is out of order easily.
What select for use in addition then is stainless steel material.Stainless steel possesses good intensity, plasticity, corrosion resistance and weldability, and the water tank that is welded into thin corrosion resistant plate not only gently but also strong.But the attemperater that thin stainless steel material is made, the hydraulic pressure intensity that it can bear is limited, if be used for large-scale solar water heater, because pressure-bearing is big, water tank generally just can only be selected thicker enamel material for use.
Summary of the invention
The objective of the invention is to, a kind of system and method for keeping normal pressure for water tank of water heater is provided, must select thicker enamel material to solve existing water-heater water tank for use because of pressure-bearing, cost is higher, and the technical problem that breaks down easily.
In order to achieve the above object, technical scheme of the present invention is as follows:
A kind of system of keeping normal pressure for water tank of water heater comprises: hydraulic means is located at attemperater, from the beginning between the mouth of a river and the hot water mouth; This hydraulic means comprises the cavity of four mutual isolation and variable volumeization, and wherein, first cavity and second cavity are provided with pipeline; The 3rd cavity links to each other with hot water mouth, attemperater; The 4th cavity links to each other with hot water mouth, attemperater; First cavity and the 3rd cavity volume sum remain unchanged; Second cavity and the 4th cavity volume sum remain unchanged; And two position and four-way reversing valves, be located on the pipeline of first cavity and second cavity, this two pipeline by this reversal valve with the mouth of a river, attemperater link to each other from the beginning.
Accordingly, the method for keeping normal pressure for water tank of water heater comprises the steps:
When step 3 cold water entered in first cavity, hot water extruded the hot water mouth in the 3rd cavity, and hot water enters the 4th cavity in the attemperater, and the second cavity inner cold water enters in the attemperater;
When step 4 reached setting value when the volume of the 3rd cavity, cold water stopped to enter first cavity, and commutation enters second cavity;
When step 5 cold water entered in second cavity, hot water extruded the hot water mouth in the 4th cavity, and hot water enters the 3rd cavity in the attemperater, and the first cavity inner cold water enters attemperater;
After adopting system and method for the present invention, attemperater needn't bear pressure, guarantees the water outlet pressure-bearing simultaneously, that is to say, whole water heater still satisfies the water bearing requirements, does not influence result of use.This has saved cost greatly with regard to having overcome traditional extra high problem of large-scale carrying water tank cost.Simultaneously, because attemperater pressure-bearing not makes that large-scale in the past press-bearing water tank must also be overcome with the technology prejudice of thicker enamel material manufacturing.In addition, solar water heater generally adopts the large insulation water tank, uses for the multi-user, just need install the measuring equipment of using hot water this moment additional.Install the water heater of native system additional, in use, if do not put hot water, cold water just advances not go, and so just needn't further save cost in that the water metering instrument is installed in addition.
Description of drawings
Fig. 1 is the first example structure schematic diagram of the system of keeping normal pressure for water tank of water heater of the present invention;
Fig. 2 is the second example structure schematic diagram of the system of keeping normal pressure for water tank of water heater of the present invention;
Fig. 3 is the 3rd an example structure schematic diagram of the system of keeping normal pressure for water tank of water heater of the present invention;
Fig. 4 is the 4th an example structure schematic diagram of the system of keeping normal pressure for water tank of water heater of the present invention.
The specific embodiment
According to Fig. 1 to Fig. 4, provide preferred embodiment of the present invention, and described in detail below, enable to understand better function of the present invention, characteristics.
The present invention is formed by hydraulic motor and hydraulic pump combination.The power that is provided by running water drives the motor motion, and motor passes to the pressure that produces liquid on the pump to power again.Fig. 1 is the first example structure schematic diagram of the system of keeping normal pressure for water tank of water heater of the present invention.As shown in the figure, this system comprises hydraulic means and two position and four-way reversing valves 6.Hydraulic means is located at attemperater 5, from the beginning between the mouth of a river 7 and the hot water mouth 8.This hydraulic means comprises the cavity of four mutual isolation and variable volumeization.First cavity 1 is provided with pipeline 11, the second cavitys 2 and is provided with pipeline 21.The 3rd cavity 3 is provided with unidirectional outlet pipe 32 and unidirectional water inlet pipe 31, and unidirectional outlet pipe 32 connects hot water mouth 8, and unidirectional water inlet pipe 31 connects attemperater 5; The 4th cavity 4 is provided with unidirectional outlet pipe 42 and unidirectional water inlet pipe 41, and unidirectional outlet pipe 42 communicates with unidirectional outlet pipe 32, and unidirectional water inlet pipe 41 communicates with unidirectional water inlet pipe 31.Two position and four-way reversing valves 6 are located on pipeline 11 and the pipeline 21, pipeline 11 and pipeline 21 by this reversal valve 6 with the mouth of a river 7, attemperater 5 link to each other from the beginning.Separate by piston 12 between first cavity 1 and the 3rd cavity 3, separate by piston 22 between second cavity 2 and the 4th cavity 4.Piston 12 is provided with push rod 13, and piston 22 is provided with push rod 23, and push rod 13 and push rod 23 are connected as a single entity; First cavity 1 and second cavity 2 separate by dividing plate 91.Perforate on the described dividing plate 91, push rod 13 with link to each other in push rod 23 is through this hole.Dividing plate 91 and hydraulic cylinder, push rod 13,23 sealings, and and the fixed one of cylinder body.
Running water enters in first cavity 1 by two position and four-way reversing valves 6 through the mouth of a river 7 from the beginning, dividing plate 91 in first cavity 1 is owing to be fixed on the hydraulic cylinder, piston 12 right laterals on water pressure pushing the right, the 3rd cavity 3 pressurizeds and volume diminishes, produce corresponding pressure, the water in the 3rd cavity 3 flows out hot water mouth 8 through unidirectional outlet pipe 32 and offers user's use.Simultaneously, because the push rod 13 of piston 12 is connected as a single entity with the push rod 23 of piston 22, piston 12 right laterals just drive piston 22 and also slide to the right, and this moment, the volume of the 4th cavity 4 became big, its internal pressure diminishes, and hot water is pressed into the 4th cavity 4 through unidirectional water inlet pipe 41 in the attemperater 5.The right lateral of piston 22 also makes second cavity, 2 pressurizeds simultaneously and volume diminishes, and the relevant pressure that produce this moment replenishes the cold water in second cavity 2 in the attemperater 5 by two position and four-way reversing valves 6 through piping 21.
When piston 12 runs to the right-hand member top of the 3rd cavity 3, two-position four way change valve 6 commutations, running water enters in second cavity 2 by two position and four-way reversing valves 6 through the mouth of a river 7 from the beginning, dividing plate 91 in second cavity 2 is owing to be fixed on the hydraulic cylinder, piston 22 left lateral on the water pressure pushing left side, the 4th cavity 4 pressurizeds and volume diminishes produce corresponding pressure, and the water in the 4th cavity 4 flow out hot water mouths 8 through unidirectional outlet pipe 42 and offer the user and use.Simultaneously, because the push rod 23 of piston 22 is connected as a single entity with the push rod 13 of piston 12, piston 22 left lateral just drive piston 12 and also slide left, and this moment, the volume of the 3rd cavity 3 became big, its internal pressure diminishes, and hot water is pressed into the 3rd cavity 3 through unidirectional water inlet pipe 31 in the attemperater 5.The left lateral of piston 12 also makes simultaneously wins cavity 1 pressurized and volume diminishes, and the relevant pressure that produce this moment replenishes the cold water in first cavity 1 in the attemperater 5 by two position and four-way reversing valves 6 through piping 11.When piston 12 moved to the left top of the 4th cavity 4, the hot water that two-position four way change valve 6 commutations repeat above action supply continuous pressure used to the user.
Fig. 2 is the second example structure schematic diagram of the system of keeping normal pressure for water tank of water heater of the present invention.As shown in the figure, this system comprises hydraulic means and two position and four-way reversing valves 6.Hydraulic means is located at attemperater 5, from the beginning between the mouth of a river 7 and the hot water mouth 8.This hydraulic means comprises the cavity of four mutual isolation and variable volumeization.First cavity 1 is provided with pipeline 11, the second cavitys 2 and is provided with pipeline 21.The 3rd cavity 3 is provided with unidirectional outlet pipe 32 and unidirectional water inlet pipe 31, and unidirectional outlet pipe 32 connects hot water mouth 8, and unidirectional water inlet pipe 31 connects attemperater 5; The 4th cavity 4 is provided with unidirectional outlet pipe 42 and unidirectional water inlet pipe 41, and unidirectional outlet pipe 42 communicates with unidirectional outlet pipe 32, and unidirectional water inlet pipe 41 communicates with unidirectional water inlet pipe 31.Two position and four-way reversing valves 6 are located on pipeline 11 and the pipeline 21, pipeline 11 and pipeline 21 by this reversal valve 6 with the mouth of a river 7, attemperater 5 link to each other from the beginning.Separate by piston 12 between first cavity 1 and the 3rd cavity 3, separate by piston 22 between second cavity 2 and the 4th cavity 4.Piston 12 is provided with push rod 13, and piston 22 is provided with push rod 23.First cavity 1 separates fully with second cavity 2.Be provided with spring 33 in the 3rd cavity 3, spring 33 1 ends are connected in the top of the 3rd cavity 3, and the other end connects piston 12.Be provided with spring 43 in the 4th cavity 4, spring 43 1 ends are connected in the top of the 4th cavity 4, and the other end connects piston 22.
Running water enters in first cavity 1 by two position and four-way reversing valves 6 through the mouth of a river 7 from the beginning, water pressure pushing piston 12 is up, the 3rd cavity 3 pressurizeds and volume diminishes produce corresponding pressure, and the water in the 3rd cavity 3 flow out hot water mouths 8 through unidirectional outlet pipe 32 and offer the user and use.
After spring 33 is subjected to maximum compression, two-position four way change valve 6 commutations, running water enters in second cavity 2 by two position and four-way reversing valves 6 through the mouth of a river 7 from the beginning, water pressure pushing piston 22 is up, the 4th cavity 4 pressurizeds and volume diminishes, produce corresponding pressure, the water in the 4th cavity 4 offers with corpse through unidirectional outlet pipe 42 outflow hot water mouths 8 and uses.Meanwhile, the spring 33 in the 3rd cavity 3 is subjected to the restoring force effect and descending, and it is descending to drive piston 12, and the hot water in the attemperater 5 is pressed into the 3rd cavity 3 through unidirectional water inlet pipe 31.The volume of first cavity 1 diminishes when piston 12 is descending, and the relevant pressure that produce this moment replenishes the cold water in first cavity 1 in the attemperater 5 by two position and four-way reversing valves 6 through piping 11.
After spring 43 is subjected to maximum compression, two-position four way change valve 6 commutations, running water enters in first cavity 1 by two position and four-way reversing valves 6 through the mouth of a river 7 from the beginning, water pressure pushing piston 12 is up, the 3rd cavity 3 pressurizeds and volume diminishes, produce corresponding pressure, the water in the 3rd cavity 3 flows out hot water mouth 8 through unidirectional outlet pipe 32 and offers user's use.Meanwhile, the spring 43 in the 4th cavity 4 is subjected to the restoring force effect and descending, and it is descending to drive piston 22, and the hot water in the attemperater 5 is pressed into the 4th cavity 4 through unidirectional water inlet pipe 41.The volume of second cavity 2 diminishes when piston 22 is descending, and the relevant pressure that produce this moment replenishes the cold water in second cavity 2 in the attemperater 5 by two position and four-way reversing valves 6 through piping 21.Next, the hot water of action supply continuous pressure used to the user more than two-position four way change valve 6 commutations repeated.
Fig. 3 is the 3rd an example structure schematic diagram of the system of keeping normal pressure for water tank of water heater of the present invention.As shown in the figure, this system compares with first embodiment, and the pipeline of both outsides is identical, and difference only is the structure of hydraulic means.The hydraulic means of present embodiment also comprises the cavity of four mutual isolation and variable volumeization.Between first cavity 1 and the 4th cavity 4, also be provided with cavity B, separate by dividing plate 93 between the cavity B and first cavity 1.Separate by piston 44 between cavity B and the 4th cavity 4.Be provided with cavity A between second cavity 2 and the 3rd cavity 3, separate by dividing plate 92 between the cavity A and second cavity 2.Separate by piston 24 between cavity A and the 3rd cavity 3.Separate by piston 94 between first cavity 1 and second cavity 2.Piston 24,94,44 is connected as a single entity by push rod 95.Perforate on the dividing plate 92,93, push rod 95 passes this hole.95 sealings of dividing plate the 92, the 93rd and hydraulic cylinder, push rod, and and the fixed one of cylinder body.Cavity A links to each other with outside atmosphere with cavity B.
Running water enters in first cavity 1 by two position and four-way reversing valves 6 through the mouth of a river 7 from the beginning, dividing plate 93 in first cavity 1 is owing to be fixed on the hydraulic cylinder, water pressure pushing piston 94 left lateral, the 3rd cavity 3 pressurizeds and volume diminishes, produce corresponding pressure, the water in the 3rd cavity 3 flows out hot water mouth 8 through unidirectional outlet pipe 32 and offers user's use.Simultaneously, because piston 94 is connected as a single entity by push rod 95 and piston 44, piston 94 left lateral just drive piston 44 and also slide left, and this moment, the volume of the 4th cavity 4 became big, and its internal pressure diminishes, and hot water is pressed into the 4th cavity 4 through unidirectional water inlet pipe 41 in the attemperater 5.The left lateral of piston 94 also makes second cavity, 2 pressurizeds simultaneously and volume diminishes, and the relevant pressure that produce this moment replenishes the cold water in second cavity 2 in the attemperater 5 by two position and four-way reversing valves 6 through piping 21.
When piston 44 runs to dividing plate 93 places, two-position four way change valve 6 commutations, running water enters in second cavity 2 by two position and four-way reversing valves 6 through the mouth of a river 7 from the beginning, dividing plate 92 in second cavity 2 is owing to be fixed on the hydraulic cylinder, water pressure pushing piston 94 right laterals, the 4th cavity 4 pressurizeds and volume diminishes produce corresponding pressure, and the water in the 4th cavity 4 flow out hot water mouths 8 through unidirectional outlet pipe 42 and offer the user and use.Simultaneously, because piston 94 is connected as a single entity by push rod 95 and piston 24, piston 95 right laterals just drive piston 24 and also slide to the right, and this moment, the volume of the 3rd cavity 3 became big, and its internal pressure diminishes, and hot water is pressed into the 3rd cavity 3 through unidirectional water inlet pipe 31 in the attemperater 5.The right lateral of piston 94 also makes simultaneously wins cavity 1 pressurized and volume diminishes, and the relevant pressure that produce this moment replenishes the cold water in first cavity 1 in the attemperater 5 by two position and four-way reversing valves 6 through piping 11.The hot water of action supply continuous pressure uses to the user more than piston 94 moves to dividing plate 93 places, and two-position four way change valve 6 commutations repeat.
Fig. 4 is the 4th an example structure schematic diagram of the system of keeping normal pressure for water tank of water heater of the present invention.As shown in the figure, this system compares with first embodiment, and the structure of both hydraulic means is identical, and difference only is outside pipeline.The system of present embodiment also has another two-position four way change valve 61, is located on the pipeline 45 of the pipeline 34 of the 3rd cavity 3 and the 4th cavity 4, and pipeline 34 links to each other with hot water mouth 8, attemperater 5 by this reversal valve 61 with pipeline 45.
Running water enters in first cavity 1 by two position and four-way reversing valves 6 through the mouth of a river 7 from the beginning, dividing plate 91 in first cavity 1 is owing to be fixed on the hydraulic cylinder, piston 12 right laterals on water pressure pushing the right, the 3rd cavity 3 pressurizeds and volume diminishes, produce corresponding pressure, the water in the 3rd cavity 3 offers with corpse and uses through pipeline 34, two-position four way change valve 61 outflow hot water mouth 8.Simultaneously, because the push rod 13 of piston 12 is connected as a single entity with the push rod 23 of piston 22, piston 12 right laterals just drive piston 22 and also slide to the right, this moment, the right lateral of piston 22 simultaneously also made second cavity, 2 pressurizeds and volume diminishes, and the relevant pressure that produce this moment replenishes the cold water in second cavity 2 in the attemperater 5 by two position and four-way reversing valves 6 through piping 21.It is big that the volume of four cavitys 4 becomes, and its internal pressure diminishes, and hot water is pressed into the 4th cavity 4 through two-position four way change valve 61, pipeline 45 in the attemperater 5.
When piston 12 runs to the right-hand member top of the 3rd cavity 3, two-position four way change valve 6,61 commutations, running water enters in second cavity 2 by two position and four-way reversing valves 6 through the mouth of a river 7 from the beginning, dividing plate 91 in second cavity 2 is owing to be fixed on the hydraulic cylinder, piston 22 left lateral on the water pressure pushing left side, the 4th cavity 4 pressurizeds and volume diminish and produce corresponding pressure. and the water in the 4th cavity 4 flow out hot water mouths 8 through pipeline 45, two-position four way change valve 61 and offer with corpse and just use.Simultaneously, because the push rod 23 of piston 22 is connected as a single entity with the push rod 13 of piston 12, piston 22 left lateral just drive piston 12 and also slide left, and this moment, the volume of the 3rd cavity 3 became big, its internal pressure diminishes, and hot water changes with valve 61, pipeline 34 through two-position four-way and is pressed into the 3rd cavity 3 in the attemperater 5.The left lateral of piston 12 also makes simultaneously wins cavity 1 pressurized and volume diminishes, and the relevant pressure that produce this moment replenishes the cold water in first cavity 1 in the attemperater 5 by two position and four-way reversing valves 6 through piping 11.When piston 12 moved to the left top of the 4th cavity 4, the hot water that two-position four way change valve 6,61 commutations repeat above action supply continuous pressure used to the user.
Also be provided with a buffering casing C between hot water mouth 8 and the reversal valve 61, run to the right-hand member top of the 3rd cavity 3 when piston 12, the decompression state may appear in the moment of reversal valve 6,61 commutations, buffering casing C both can hold the water from the 3rd cavity 3, also can oppositely water be replenished back the 4th cavity 4, thereby eliminate decompression substantially.This buffering casing C also can be located at hot water mouth 8 places among aforementioned three embodiment certainly.
Accordingly, the method for keeping normal pressure for water tank of water heater comprises the steps:
When step 3 cold water entered in first cavity 1, hot water extruded hot water mouth 8 in the 3rd cavity 3, and attemperater 5 interior hot water enter the 4th cavity 4, the second cavitys 2 inner cold waters and enter in the attemperater 5;
When step 4 reached setting value when the volume of the 3rd cavity 3, cold water stopped to enter first cavity 1, entered second cavity 2 by reversal valve 6 from the mouth of a river 7 from the beginning;
When step 5 cold water entered in second cavity 2, hot water extruded hot water mouth 8 in the 4th cavity 4, and hot water enters the 3rd cavity 3, the first cavitys 1 inner cold water and enters attemperater 5 in the attemperater 5;
The mensuration of relevant volume-variation can be provided with travel switch X2 and on dividing plate 91 right sides of hydraulic pressure casing travel switch X1 is set and realize by the hydraulic pressure casing right side in Fig. 1.When piston 12 right laterals, meet travel switch X2, reversal valve 6 commutations, piston 12 changes left lateral into, when meeting travel switch X1, valve 6 commutations, piston 12 changes right lateral into.Also can do similar setting on the hydraulic pressure casing among Fig. 4, with the commutation of control reversal valve 6,61.Travel switch X2 also can be arranged on the left side of hydraulic pressure casing, and travel switch X1 also can be arranged on dividing plate 91 left sides.
The front provides the description to preferred embodiment, so that any technical staff in this area can use or utilize the present invention.Description by four embodiment, as can be seen, as long as hydraulic means of the present invention possesses first cavity 1 and the 3rd cavity 3 volume sums remain constant and second cavity 2 and the 4th cavity 4 volume sums remain constant feature, no matter how concrete structure changes, all can satisfy purpose of the present invention.Equally, as long as the exterior line of hydraulic means of the present invention also possesses the feature that commutation continues water supply repeatedly, can satisfy purpose of the present invention.To this preferred embodiment, those skilled in the art can make various modifications or conversion on the basis that does not break away from the principle of the invention.Should be appreciated that in the specification for embodiment only be a kind of preferred embodiment, modification or conversion that this embodiment is made do not break away from protection scope of the present invention.
Claims (8)
1, a kind of system of keeping normal pressure for water tank of water heater is characterized in that, this system comprises:
Hydraulic means is located at attemperater (5), from the beginning between the mouth of a river (7) and the hot water mouth (8); This hydraulic means comprises the cavity of four mutual isolation and variable volumeization, wherein,
First cavity (1) is provided with first pipeline (11);
Second cavity (2) is provided with second pipeline (21);
The 3rd cavity (3) links to each other with hot water mouth (8), attemperater (5);
The 4th cavity (4) links to each other with hot water mouth (8), attemperater (5);
First cavity (1) remains unchanged with the 3rd cavity (3) volume sum; Second cavity (2)
Remain unchanged with the 4th cavity (4) volume sum; And
Two position and four-way reversing valves (6) are located on first pipeline (11) and second pipeline (21), first pipeline (11) and second pipeline (21) by this two position and four-way reversing valve (6) with the mouth of a river (7), attemperater (5) link to each other from the beginning.
2, the system of keeping normal pressure for water tank of water heater as claimed in claim 1, it is characterized in that, the 3rd cavity (3) is provided with the first unidirectional outlet pipe (32) and the first unidirectional water inlet pipe (31), the first unidirectional outlet pipe (32) connects hot water mouth (8), and the first unidirectional water inlet pipe (31) connects attemperater (5); The 4th cavity (4) is provided with the second unidirectional outlet pipe (42) and the second unidirectional water inlet pipe (41), and the second unidirectional outlet pipe (42) communicates with the first unidirectional outlet pipe (32), and the second unidirectional water inlet pipe (41) communicates with the first unidirectional water inlet pipe (31).
3, the system of keeping normal pressure for water tank of water heater as claimed in claim 2, it is characterized in that, separate by first piston (12) between first cavity (1) and the 3rd cavity (3), separate by second piston (22) between second cavity (2) and the 4th cavity (4).
4, the system of keeping normal pressure for water tank of water heater as claimed in claim 3, it is characterized in that, first piston (12) is provided with first push rod (13), and second piston (22) is provided with second push rod (23), and first push rod (13) and second push rod (23) are connected as a single entity; First cavity (1) and second cavity (2) separate by dividing plate (91).
5, the system of keeping normal pressure for water tank of water heater as claimed in claim 3 is characterized in that, is provided with first spring (33) that links to each other with first piston (12) in the 3rd cavity (3); Be provided with second spring (43) that links to each other with second piston (22) in the 4th cavity (4).
6, the system of keeping normal pressure for water tank of water heater as claimed in claim 1, it is characterized in that, this system also has second two position and four-way reversing valve (61), be located on the 4th pipeline (45) of the 3rd pipeline (34) of the 3rd cavity (3) and the 4th cavity (4), the 3rd pipeline (34) links to each other with hot water mouth (8), attemperater (5) by this second two position and four-way reversing valve (61) with the 4th pipeline (45).
7, the system of keeping normal pressure for water tank of water heater as claimed in claim 6 is characterized in that, also is provided with a buffering casing (C) between hot water mouth (8) and second two position and four-way reversing valve (61).
8, a kind of method of keeping normal pressure for water tank of water heater comprises the steps:
Step 8-1 attemperater (5), establish the cavity of four variable volume between the mouth of a river (7) and the hot water mouth (8) from the beginning, wherein first cavity (1) remains unchanged with the 3rd cavity (3) volume sum; Second cavity (2) remains unchanged with the 4th cavity (4) volume sum;
Step 8-2 cold water enters first cavity (1) from the mouth of a river (7) from the beginning;
Step 8-3 cold water enters first cavity (1) when interior, and the interior hot water of the 3rd cavity (3) extrudes hot water mouth (8), and the interior hot water of attemperater (5) enters the 4th cavity (4), and second cavity (2) inner cold water enters in the attemperater (5);
When step 8-4 reached setting value when the volume of the 3rd cavity (3), cold water stopped to enter first cavity (1), and commutation enters second cavity (2);
Step 8-5 cold water enters second cavity (2) when interior, and the interior hot water of the 4th cavity (4) extrudes hot water mouth (8), and the interior hot water of attemperater (5) enters the 3rd cavity (3), and first cavity (1) inner cold water enters attemperater (5);
Step 8-6 repeating step 8-2 is to step 8-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100264096A CN100436960C (en) | 2006-05-10 | 2006-05-10 | System and method of keeping normal pressure for water tank of water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100264096A CN100436960C (en) | 2006-05-10 | 2006-05-10 | System and method of keeping normal pressure for water tank of water heater |
Publications (2)
| Publication Number | Publication Date |
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| CN1844785A CN1844785A (en) | 2006-10-11 |
| CN100436960C true CN100436960C (en) | 2008-11-26 |
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| CNB2006100264096A Expired - Fee Related CN100436960C (en) | 2006-05-10 | 2006-05-10 | System and method of keeping normal pressure for water tank of water heater |
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| CN104729099B (en) * | 2014-12-12 | 2017-07-07 | 重庆大学 | A kind of hot-water heating system water saving fixtures and its method |
| CN105091376B (en) * | 2015-09-30 | 2018-11-16 | 裴学华 | The improvement water tank of solar energy |
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| US5526962A (en) * | 1993-05-10 | 1996-06-18 | Medimpex Ets. | Double piston pump for administering medication |
| CN2641317Y (en) * | 2003-09-18 | 2004-09-15 | 李竞 | Reciproating type gas compressor |
| CN2903793Y (en) * | 2006-04-07 | 2007-05-23 | 韩绍良 | Water tank constant pressure system of water heater |
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| Publication number | Publication date |
|---|---|
| CN1844785A (en) | 2006-10-11 |
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