CN102425685A - Switching valve and heating system - Google Patents
Switching valve and heating system Download PDFInfo
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- CN102425685A CN102425685A CN2011103775516A CN201110377551A CN102425685A CN 102425685 A CN102425685 A CN 102425685A CN 2011103775516 A CN2011103775516 A CN 2011103775516A CN 201110377551 A CN201110377551 A CN 201110377551A CN 102425685 A CN102425685 A CN 102425685A
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Abstract
The invention relates to a switching valve and a heating system. The switching valve comprises a valve body, a liquid inlet, a cold liquid outlet and a hot liquid outlet, and the switching valve is characterized by also comprising a liquid inlet cavity, a cold liquid cavity, a hot liquid cavity and a cold-hot liquid switching device, a first through hole is arranged between the liquid inlet cavity and the cold liquid cavity, a second through hole is arranged between the liquid inlet cavity and the hot liquid cavity, and the cold-hot liquid switching device can seal the first through hole or the second through hole according to the temperature of liquid; and the switching valve is used in the heating system. Due to the adoption of the switching valve and the heating system, the particular shape of a memory alloy spring at a given temperature is utilized to control the cold-hot switching of the valve, so the technical effects such as energy conservation, low price, simplicity in operation and low maintenance expense can be realized.
Description
Technical field
The present invention relates to a kind of switching valve and heating system, relate in particular to a kind of cold and hot switching valve and heating system.
Background technique
Along with expanding economy is increasing to the consumption of the energy, it is important that energy saving seems all the more, and country has put into effect relevant policies and rules are advocated energy-conserving and environment-protective, and various heating conservation measuress are widely applied.Through increase heat meter reach measure heat as required method at the new building mandatory adoption, simultaneously the hot Measuring Reformation of existing building is also being launched.But existing many factors are unfavorable for the popularization of heat metering; For example: in heating system; Bigbore heat meter involves great expense: on hot calculating correction values method, will calculate temperature difference and the flow that supplies back liquid in real time, obtain instantaneous heat, obtain total thermal losses through the instantaneous heat of accumulative total.The method calculation of complex; Dependency degree to equipment higher (needing to supply back the electric controller of fluid pipeline reload temperature sensor, flowmeter, use battery or external power); The equipment relative complex; Cost is higher, and the enforcement of heat meter has only provided the technological means according to meterage in addition, does not relate to the power-saving technology aspect.In heating system, install robot control system(RCS) installation electric control valve additional and carry out automation control to reach purpose of energy saving; This kind method needs electro motion control valve is being installed and SC sigmal control case, power pack are installed near valve; Cloth signaling lines etc. quite complex apparatus could carry out Energy Saving Control to system; This mode involves great expense, and complex equipments is higher to operator's competency profiling, and the complicated expense of maintenance maintenance is high.
In addition, solar heat liquid device in use, when the liquid in the fluid box did not reach relevant temperature, the user can let flow of liquid a period of time earlier with valve open, re-uses when reaching uniform temperature, can cause the wasting of resources like this.
The cold and hot switch of existing technology because structural design is unreasonable, causes the sensitivity of temperature variation relatively poor, does not reach the technique effect of timely switching.
Summary of the invention
The present invention proposes a kind of switching valve and heating system; Utilize the Kai Heguan of cold and hot COMM communication control backflow branch road; When fluid temperature in the valve during less than preset temperature, the backflow branch road is opened, when fluid temperature in the valve during greater than preset temperature; The backflow branch road is closed, finally realize energy-conservation, reduce cost, simplify the operation, reduce the purpose of maintenance and repair expense.
In order to solve the problems of the technologies described above, the technological scheme that the present invention takes is following:
A kind of switching valve; Comprise valve body, advance fluid port, cold liquid outlet and hot liquid outlet; It is characterized in that, also comprise feed liquor body cavity, cold liquid container, hydrothermal solution body cavity and cold and hot COMM communication, be provided with first through hole between said feed liquor body cavity and the cold liquid container; Be provided with second through hole between said feed liquor body cavity and the hydrothermal solution body cavity, cold and hot COMM communication is according to temperature shutoff first through hole or second through hole of liquid.
Preferably; Cold and hot COMM communication comprises Returnning spring, first piston, second piston, memory alloy spring and piston rod; Returnning spring and memory alloy spring are enclosed within on the said piston rod, and said first piston, second piston are fixed on the piston rod, and piston rod runs through first and second through holes.
On piston rod, the second piston left and right sides is fixed with first baffle plate and second baffle, second baffle is withstood in the Returnning spring left side, first plate washer is withstood in the memory alloy spring right part.
Be provided with the groove that holds piston rod in two ends of valve body, piston rod can move back and forth.
Preferably, be respectively equipped with at least one in two ends of valve body and regulate head, regulate on the head pressure handle is set, spool is moved in runner through the rotation of forcing handle, needn't liquid body Influence of Temperature, shutoff first through hole or second through hole.
Preferably, be respectively equipped with first in two ends of valve body and regulate head and regulate head with second, piston rod places first to regulate in the central channel of head and second adjusting, and piston rod can move left and right; On the first adjusting head pressure handle is set, on the second adjusting head temperature adjustment handle is set, be used to regulate the switching temperature of switching valve.
Preferably, be provided with adjustment sleeve at the right-hand member of valve body, cold liquid container places in the adjustment sleeve; Be provided with seal ring between adjustment sleeve and valve body second end; Be provided with seal ring between the second adjusting head and the adjustment sleeve; Returnning spring and second baffle place in the adjustment sleeve; Said first baffle plate, memory alloy spring, first piston and second piston place in the said feed liquor body cavity; The memory alloy spring very first time, the liquid interior with getting into valve body contacted.
A kind of heating system is characterized in that, in heating system, uses above-mentioned switching valve.
Preferably, the backflow main is connected with the fluid port of advancing of switching valve in the heating system, and heating source backflow branch road is connected with the cold liquid outlet of said switching valve; Heating main is connected with the hot liquid outlet of switching valve.
The hot liquid outlet of switching valve is connected between flowmeter and the heating equipment.
Preferably, the memory alloy spring very first time contacts with liquid in getting into valve body, and the temperature of perception liquid and make action reaches the technique effect of timely switching rapidly.
Switching valve provided by the invention and heating system utilize memory alloy spring in the cold and hot switching that the given shape of uniform temperature comes control valve, can reach energy-conservation, reduce cost, simplify the operation, reduce the technique effect of maintenance and repair expense.
Description of drawings
Do further detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 1 is the structural drawing of switching valve;
1 is the second adjusting head among Fig. 1, and 2 is Returnning spring, and 3 is adjustment sleeve, and 4 is cold liquid outlet, and 5 is second baffle; 6 is second piston, and 7 is memory alloy spring, and 8 is first piston, and 9 is the hot liquid outlet, and 10 is the first adjusting head; 11 is seal ring, and 12 is piston rod, and 13 is the hydrothermal solution body cavity, and 14 for advancing fluid port; 15 is the feed liquor body cavity, and 16 is first baffle plate, and 17 is cold liquid container, and 18 is valve body; Direction of liquid flow is shown in arrow among the figure.
Fig. 2 is the structural drawing of another kind of switching valve;
2 is Returnning spring among Fig. 2, and 3 is adjustment sleeve, and 4 is cold liquid outlet, and 6 is lower piston, and 7 is memory alloy spring, and 8 is upper piston, and 10 for regulating head, and 12 is piston rod, and 16 is first baffle plate, and 18 is valve body, 26 handles, 27 spools, 28 nuts; Direction of liquid flow is shown in arrow among the figure.
The structural drawing of the another kind of switching valve of Fig. 3;
1 is the second adjusting head, and 2 is Returnning spring, and 3 is adjustment sleeve, and 4 is cold liquid outlet, and 5 is second baffle; 6 is second piston, and 7 is memory alloy spring, and 8 is first piston, and 9 is the hot liquid outlet, and 10 is the first adjusting head; 12 is piston rod, and 15 is the feed liquor body cavity, and 16 is first baffle plate, and 17 is cold liquid container, and 18 is valve body; 26 force handle, 27 driving components, 28 jump rings, 29 transmission nuts, 30 temperature adjustment handles; Direction of liquid flow is shown in arrow among the figure.
Fig. 4 is the heating system structural drawing;
19 is switching valve among Fig. 4, and 20 are the backflow main, and 21 is heating source backflow branch road, and 22 is heating source, and 23 is flowmeter, and 24 is heating main, and 25 is heating equipment.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of switching valve comprises that second regulates 1, Returnning spring 2, adjustment sleeve 3; Cold liquid outlet 4, second baffle 5, the second pistons 6, memory alloy spring 7, first piston 8; Hot liquid outlet 9, the first regulates 10, seal ring 11, piston rod 12, hydrothermal solution body cavity 13; Advance fluid port 14, feed liquor body cavity 15, the first baffle plates 16, cold liquid container 17, valve body 18; Direction of liquid flow is shown in arrow among the figure.First piston 8, second piston 6, first baffle plate 16 and second baffle 5 are fixed on piston rod 12 corresponding positions by the jump ring back-up ring; Piston rod 12 is installed in first and regulates in the central channel of 1 and second adjusting 10, and can the one the second moves; Reset spring 2 is enclosed within on the piston rod 12 and is installed in the adjustment sleeve 3, and first end face withstands second baffle 5, and memory alloy spring 7 is enclosed within the middle part of piston rod 12, and the second end withstands first plate washer 16.Be provided with in the said valve body 18 between feed liquor body cavity 15, hydrothermal solution body cavity 13 said feed liquor body cavitys 15 and the said hydrothermal solution body cavity 13 and be provided with first through hole; Second end at valve body 18 is provided with adjustment sleeve 3, in described adjustment sleeve 3, is provided with cold liquid container 17; Be provided with second through hole between said feed liquor body cavity 15 and the said cold liquid container 17; Said piston rod 12 passes said through hole.
When advancing liquid temperature that fluid port 14 flows to and be lower than the deformation temperature value of memory alloy spring 7; Memory alloy spring 7 is contraction state; This moment is because the effect of the elastic restoring force of reset spring 2; Promote second baffle 5 to first motion, force first piston 8 to block first through hole between feed liquor body cavity 15 and the hydrothermal solution body cavity 13, flow of liquid can not flow out through A; Second piston 6 leaves the through hole between feed liquor body cavity 15 and the cold liquid container 17 simultaneously, and flow of liquid flows out through B; The liquid Wen Wendu that advances fluid port when inflow is higher; And when meeting or exceeding the deformation temperature value of memory alloy spring 7, deformation take place in the memory alloy spring 7 of spring-like, promote first baffle plate 15 to second motion; Promptly promoting piston rod 12 moves to second; Force first piston 8 to leave first through hole between feed liquor body cavity 15 and the hydrothermal solution body cavity 13, flow of liquid flows out through the A chamber, in compression reset spring 2, also forces second piston 6 to block second through hole between feed liquor body cavity 15 and the cold liquid container 17; Flow of liquid can not flow out from the B chamber, has realized the purpose of valve according to liquid temperature automatic switchover output liquid stream.
Can realize the cold and hot switching of switching valve according to the actual demand preset temperature value.
Fig. 2 is the schematic representation of another kind of switching valve, and is as shown in Figure 2, and a kind of switching valve comprises Returnning spring 2, adjustment sleeve 3, cold liquid outlet 4; Lower piston 6, memory alloy spring 7, upper piston 8 regulates 10, piston rod 12; First baffle plate 16, valve body 18,26 handles, 27 spools, 28 nuts.
Regulate on the head handle is set, can spool moved in runner, through operating this handle, spool be realized the sealing A channel, opens the B passage; Perhaps seal the B passage, open A channel, and needn't the liquid body Influence of Temperature.
Fig. 3 is the schematic representation of another kind of switching valve, and is as shown in Figure 3, and a kind of switching valve comprises that 1 is the second adjusting head, and 2 is Returnning spring, and 3 is adjustment sleeve, and 4 is cold liquid outlet; 5 is second baffle, and 6 is second piston, and 7 is memory alloy spring, and 8 is first piston, and 9 is the hot liquid outlet, and 10 is the first adjusting head; 12 is piston rod, and 15 is the feed liquor body cavity, and 16 is first baffle plate, and 17 is cold liquid container, and 18 is valve body; 26 force handle, 27 driving components, 28 jump rings, 29 transmission nuts, 30 temperature adjustment handles; Direction of liquid flow is shown in arrow among the figure.
First regulates 10 place is provided with pressure handle 26, forces the rotation of handle 26 that spool is moved in runner, and through operating this handle, spool is realized the sealing A channel, unlatching B passage; Perhaps seal the B passage, open A channel, and needn't the liquid body Influence of Temperature.Second regulates 1 place is provided with temperature adjustment handle 30, is used to regulate the switching temperature of switching valve.
As shown in Figure 4, a kind of heating system comprises switching valve 19, backflow main 20, heating source backflow branch road 21, heating source 22, flowmeter 23, heating main 24, heating equipment 25.
When the liquid temperature that flows to from backflow main 20 is lower than the deformation temperature value of memory alloy spring 7; Memory alloy spring 7 is contraction state; This moment is because the effect of the elastic restoring force of reset spring 2; Promote second baffle 5 to first motion, force first piston 8 to block first through hole between feed liquor body cavity 15 and the hydrothermal solution body cavity 13, flow of liquid can not flow out through A; Second piston 6 leaves second through hole between feed liquor body cavity 15 and the cold liquid container 17 simultaneously, and flow of liquid flows out through B, gets back to heating once more in the heating source 22 through heating source backflow branch road 21.
Higher as the liquid Wen Wendu that flows to from backflow main 20, and when meeting or exceeding the deformation temperature value of memory alloy spring 7, deformation take place in the memory alloy spring 7 of spring-like; Promote first baffle plate 15 to second motion; Promptly promote piston rod 12 and move to second, force second piston 6 to block second through hole between feed liquor body cavity 15 and the cold liquid container 17, flow of liquid can not flow out from the B chamber; Simultaneously also force first piston 8 to leave first through hole between feed liquor body cavity 15 and the hydrothermal solution body cavity 13; Flow of liquid flows out through the A chamber, flows into heating main 24, and then flows in the heating equipment 25.The hot liquid outlet 9 of switching valve 19 is connected between flowmeter 23 and the heating equipment 25.Can reuse the higher liquid of temperature like this, the withdrawing fluid of higher temperature is without flowmeter 23, not only can energy saving, and avoid repeating heating, and can practice thrift user's heating cost.
Above embodiment's purpose is to explain the present invention, and unrestricted protection scope of the present invention, all application that come by simple change of the present invention all drop in protection scope of the present invention.
Claims (10)
1. switching valve; Comprise valve body, advance fluid port, cold liquid outlet and hot liquid outlet; It is characterized in that, also comprise feed liquor body cavity, cold liquid container, hydrothermal solution body cavity and cold and hot COMM communication, be provided with first through hole between said feed liquor body cavity and the cold liquid container; Be provided with second through hole between said feed liquor body cavity and the hydrothermal solution body cavity, cold and hot COMM communication is according to temperature shutoff first through hole or second through hole of liquid.
2. switching valve according to claim 1; It is characterized in that; Described cold and hot COMM communication comprises Returnning spring, first piston, second piston, memory alloy spring and piston rod; Said Returnning spring and memory alloy spring are enclosed within on the said piston rod, and said first piston, second piston are fixed on the said piston rod, and said piston rod runs through said first and second through holes.
3. switching valve according to claim 2; It is characterized in that; On said piston rod, the second piston left and right sides is fixed with first baffle plate and second baffle, second baffle is withstood in said Returnning spring left side, first plate washer is withstood in said memory alloy spring right part.
4. switching valve according to claim 3 is characterized in that, is provided with the groove that holds said piston rod in said two ends of valve body, and said piston rod can move back and forth.
5. switching valve according to claim 3; It is characterized in that; Be respectively equipped with at least one in said two ends of valve body and regulate head, regulate on the head pressure handle is set, spool is moved in runner through the rotation of forcing handle; Needn't liquid body Influence of Temperature, shutoff first through hole or second through hole.
6. switching valve according to claim 5 is characterized in that, is respectively equipped with first in said two ends of valve body and regulates head and regulate head with second, and piston rod places said first to regulate in the central channel of head and second adjusting, and said piston rod can move left and right; On the first adjusting head pressure handle is set, on the second adjusting head temperature adjustment handle is set, be used to regulate the switching temperature of switching valve.
7. switching valve according to claim 5 is characterized in that, is provided with adjustment sleeve at the right-hand member of said valve body, and said cold liquid container places in the said adjustment sleeve; Be provided with seal ring between said adjustment sleeve and said valve body second end; Be provided with seal ring between said second adjusting head and the said adjustment sleeve; Said Returnning spring and second baffle place in the said adjustment sleeve; Said first baffle plate, memory alloy spring, first piston and second piston place in the said feed liquor body cavity; The said memory alloy spring very first time, the liquid interior with getting into valve body contacted.
8. a heating system is characterized in that, in heating system, uses each described switching valve of claim 1-7.
9. heating system according to claim 8 is characterized in that, the backflow main is connected with the fluid port of advancing of said switching valve, and heating source backflow branch road is connected with the cold liquid outlet of said switching valve; Heating main is connected with the hot liquid outlet of said switching valve.
10. heating system according to claim 9 is characterized in that, the hot liquid outlet of said switching valve is connected between flowmeter and the heating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103775516A CN102425685A (en) | 2011-11-24 | 2011-11-24 | Switching valve and heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103775516A CN102425685A (en) | 2011-11-24 | 2011-11-24 | Switching valve and heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102425685A true CN102425685A (en) | 2012-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103775516A Pending CN102425685A (en) | 2011-11-24 | 2011-11-24 | Switching valve and heating system |
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| CN (1) | CN102425685A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878324A (en) * | 2012-10-23 | 2013-01-16 | 曼瑞德自控***（乐清）有限公司 | Water mixing device for floor heating |
| CN103234064A (en) * | 2013-04-22 | 2013-08-07 | 恺霖卫浴科技（厦门）有限公司 | Temperature sensing water outflow device |
| CN103321982A (en) * | 2012-09-18 | 2013-09-25 | 赵江 | Hand-operated self-inspection hydraulic proportional valve |
| CN103321982B (en) * | 2012-09-18 | 2016-11-30 | 赵江 | Manually, self-inspection hydraulic proportion valve |
| CN106500295A (en) * | 2016-11-01 | 2017-03-15 | 珠海格力电器股份有限公司 | water receiving assembly, dehumidifier and air conditioner |
| CN108050270A (en) * | 2018-02-05 | 2018-05-18 | 中冶北方（大连）工程技术有限公司 | Gravity line ore pulp switch valve |
| CN108884731A (en) * | 2016-04-07 | 2018-11-23 | Ufi过滤器股份公司 | The valve group of element with marmem |
| CN112049943A (en) * | 2020-07-13 | 2020-12-08 | 浙江大学 | Bidirectional isolation valve device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB625685A (en) * | 1946-08-02 | 1949-07-01 | Cossor Ltd A C | Improvements relating to fluid-actuated valves |
| JPH08312832A (en) * | 1995-05-15 | 1996-11-26 | Nippon Dennetsu Co Ltd | Branch valve |
| JPH1194101A (en) * | 1997-09-24 | 1999-04-09 | Teikoku Piston Ring Co Ltd | Three-way valve and its using method |
| JPH11287356A (en) * | 1998-04-01 | 1999-10-19 | Saginomiya Seisakusho Inc | Three-way selector valve using shape memory alloy |
| CN101338922A (en) * | 2008-05-30 | 2009-01-07 | 菁华昱创（北京）新技术发展有限公司 | Self-supporting temperature control switch |
| CN202360800U (en) * | 2011-11-24 | 2012-08-01 | 北京龙浩安达新技术有限公司 | Switching valve and heating system |
-
2011
- 2011-11-24 CN CN2011103775516A patent/CN102425685A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB625685A (en) * | 1946-08-02 | 1949-07-01 | Cossor Ltd A C | Improvements relating to fluid-actuated valves |
| JPH08312832A (en) * | 1995-05-15 | 1996-11-26 | Nippon Dennetsu Co Ltd | Branch valve |
| JPH1194101A (en) * | 1997-09-24 | 1999-04-09 | Teikoku Piston Ring Co Ltd | Three-way valve and its using method |
| JPH11287356A (en) * | 1998-04-01 | 1999-10-19 | Saginomiya Seisakusho Inc | Three-way selector valve using shape memory alloy |
| CN101338922A (en) * | 2008-05-30 | 2009-01-07 | 菁华昱创（北京）新技术发展有限公司 | Self-supporting temperature control switch |
| CN202360800U (en) * | 2011-11-24 | 2012-08-01 | 北京龙浩安达新技术有限公司 | Switching valve and heating system |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321982B (en) * | 2012-09-18 | 2016-11-30 | 赵江 | Manually, self-inspection hydraulic proportion valve |
| CN103321982A (en) * | 2012-09-18 | 2013-09-25 | 赵江 | Hand-operated self-inspection hydraulic proportional valve |
| CN102878324A (en) * | 2012-10-23 | 2013-01-16 | 曼瑞德自控***（乐清）有限公司 | Water mixing device for floor heating |
| CN102878324B (en) * | 2012-10-23 | 2014-04-16 | 曼瑞德自控***（乐清）有限公司 | Water mixing device for floor heating |
| US9309984B2 (en) * | 2013-04-22 | 2016-04-12 | Kylin Sanitary Technology (Xiamen) Co., Ltd. | Temperature control outlet device |
| CN103234064B (en) * | 2013-04-22 | 2016-04-06 | 恺霖卫浴科技（厦门）有限公司 | A kind of temperature-sensitive water outlet device |
| US20140311592A1 (en) * | 2013-04-22 | 2014-10-23 | Kylin Sanitary Technology (Xiamen) Co., Ltd. | Temperature control outlet device |
| CN103234064A (en) * | 2013-04-22 | 2013-08-07 | 恺霖卫浴科技（厦门）有限公司 | Temperature sensing water outflow device |
| CN108884731A (en) * | 2016-04-07 | 2018-11-23 | Ufi过滤器股份公司 | The valve group of element with marmem |
| CN108884731B (en) * | 2016-04-07 | 2021-03-02 | Ufi过滤器股份公司 | Valve set with shape memory alloy element |
| CN106500295A (en) * | 2016-11-01 | 2017-03-15 | 珠海格力电器股份有限公司 | water receiving assembly, dehumidifier and air conditioner |
| CN106500295B (en) * | 2016-11-01 | 2022-01-07 | 珠海格力电器股份有限公司 | Water receiving assembly, dehumidifier and air conditioner |
| CN108050270A (en) * | 2018-02-05 | 2018-05-18 | 中冶北方（大连）工程技术有限公司 | Gravity line ore pulp switch valve |
| CN112049943A (en) * | 2020-07-13 | 2020-12-08 | 浙江大学 | Bidirectional isolation valve device |
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Application publication date: 20120425 |