CN206207717U - A kind of central fuel gas water heating device with memory alloy one-way valve - Google Patents
A kind of central fuel gas water heating device with memory alloy one-way valve Download PDFInfo
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- CN206207717U CN206207717U CN201621177124.8U CN201621177124U CN206207717U CN 206207717 U CN206207717 U CN 206207717U CN 201621177124 U CN201621177124 U CN 201621177124U CN 206207717 U CN206207717 U CN 206207717U
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Abstract
The utility model discloses a kind of central fuel gas water heating device with memory alloy one-way valve, including：Water heater body, master controller, heat exchanger on water heater body, connection on the heat exchanger enter cold water pipe, hot-water outlet pipe, be connected to the use water spot on hot-water outlet pipe, and be connected to water spot and the cold water branch pipe entered between cold water pipe；The memory alloy one-way valve that hot-water outlet pipe is connected with cold water branch pipe is provided with distalmost end water spot, the memory alloy one-way valve being raised with temperature and reducing valve opening；The hot-water outlet pipe, memory alloy one-way valve, cold water branch pipe and enter cold water pipe constitute circulation loop, water flow sensor, the water circulating pump being connected with master controller are provided with circulation loop.The utility model can judge whether for the water in hot-water line to be heated to design temperature that, so as to ensure that the water in hot-water line is hot water, the water in cold water pipe is cold water according to the change of circulating water flow, also realize opening i.e. cold on the basis of instant-heating is reached.
Description
Technical field
The utility model is related to valve technology field, more particularly to a kind of central fuel gas water heating with memory alloy one-way valve
Device.
Background technology
Current central fuel gas water heating device, when the cold water pipe of utilization water spot serves as the return pipe of warm-up cycle, meeting exists
One check valve is installed between cold water pipe, the water heater pipe of distalmost end water spot, cold water pipe and hot-water line are connected by check valve
Pick up and, water heater is formed a loop with hot-water line, check valve, cold water pipe, in advance added the water in loop before bathing
Heat, reaches the effect of instant-heating.
During real work, using water heater backwater end (cold water end) temperature as decision condition, i.e. when water heater backwater end
Temperature when reaching setting value, control the water circulating pump of central fuel gas water heating device to be stopped, warm-up cycle is completed.However, existing
With the presence of the following technical problem of this preheating mode：
1) water feeding of heater end (backwater end) temperature and not up to design temperature, and water outlet of water heater end temperature is very
Height, i.e., it is hot after the completion of in hot-water line temperature exceed design temperature, there is the hidden danger of scald, influence user's bath comfort.2) exist
The water in cold water pipe can be heated to design temperature in warm, make user during this period using having one section of hot water in cold water
Outflow.3) in preheating, the water of cold water pipe is heated to design temperature, causes unnecessary gas, the waste of electricity.
Utility model content
For problems of the prior art, the purpose of this utility model is to provide one kind to be avoided that after the completion of preheating
Water temperature over-high, the water ensured in hot-water line are the central combustion gas heat of cold water for the water in hot water and cold water pipe is most of in hot-water line
Hydrophone.
To achieve the above objectives, the utility model is adopted the following technical scheme that.
A kind of central fuel gas water heating device with memory alloy one-way valve, including：Water heater body, installed in water heater body
On master controller, heat exchanger, connection on the heat exchanger enter cold water pipe, hot-water outlet pipe, be connected on hot-water outlet pipe
With water spot, and it is connected to water spot and the cold water branch pipe entered between cold water pipe；Characterized in that, being set at distalmost end water spot
There is the memory alloy one-way valve that hot-water outlet pipe is connected with cold water branch pipe, the memory alloy one-way valve is raised and reduced with temperature
Valve opening；The hot-water outlet pipe, memory alloy one-way valve, cold water branch pipe and enter cold water pipe constitute circulation loop, looping back
Road is provided with water flow sensor, the water circulating pump being connected with master controller.
As with improvement, the temperature sensor being connected with master controller is provided with cold water pipe is entered.
Used as with improvement, the memory alloy one-way valve includes：Valve body, is molded over intake antrum, water chamber in valve body, if
The valve element in water chamber is put, and is connected to the memory alloy spring on valve element；Be provided between intake antrum and water chamber by
The delivery port of both connections, the memory alloy spring temperature distortion promotion valve core movement makes the aperture between valve element and delivery port
Reduce.
As with improvement, fixing clasp is provided with the end of water chamber, connecting pole is provided with valve element, the valve element passes through
Connecting pole is slidably mounted in fixing clasp, and the memory alloy spring is arranged between valve element and fixing clasp and with temperature
Rising voluntarily extends.
As with improvement, backing plate is provided with towards the side of valve element in fixing clasp.
Used as with improvement, the memory alloy spring is arranged between valve element and delivery port and is raised with temperature and shortened.
As with improvement, during warm-up cycle, when the water-carrying capacity changing value △ Q that water flow sensor is detected are more than
During equal to setting value Q, master controller sends instruction makes water circulating pump be stopped, and preheating is completed；The value model of the setting value Q
It is 1L/min -1.5L/min to enclose.
Used as with improvement, the setting value Q is automatically generated by master controller according to following calculating formula：
Q=k (TIn advance-T0)
Unit is L/min.
K is constant coefficient, and summer takes 0.1, and winter takes 0.05.
TIn advanceRepresent the preheating temperature of setting.
T0Inflow temperature is represented, is being opened in preheating 10s, by being arranged on what is detected into the temperature sensor on cold water pipe
Temperature averages determine.
Used as with improvement, during warm-up cycle, when central gas heater auto extinguishing, master controller sends finger
Order makes water circulating pump be stopped, and preheating is completed.
The beneficial effects of the utility model are：
First, using memory alloy one-way valve, aperture is controlled according to temperature change, makes the recirculated water in hot water circuit pipeline
Flow changes, and water heater can judge whether for the water in hot-water line to be heated to setting temperature according to the change of circulating water flow
Degree, without connecting holding wire, simple structure with water spot in distalmost end.
2nd, the characteristic changed with water temperature using memory alloy one-way valve aperture, is solved common hot water cyclesystem and existed
Temperature overshot problem, it is ensured that water in hot-water line is hot water, and the water in cold water pipe is cold water, on the basis for reaching instant-heating
On also realize i.e. open i.e. cold, solve the problems, such as preheating after can not at once use cold water.
3rd, due to the water of hot-water line only is heated into design temperature, gas is fully saved, electricity；More environmentally-friendly energy-conservation.
Brief description of the drawings
Fig. 1 show the central fuel gas water heating device structural representation of the utility model offer.
Fig. 2 show memory alloy one-way valve structural representation.
Fig. 3 show memory alloy spring length and temperature change graph of a relation.
Fig. 4 show temperature change graph of a relation at circulatory system circulating water flow and memory alloy one-way valve.
Fig. 5 show the central fuel gas water heating device structural representation workflow diagram of the utility model offer.
Description of reference numerals：
1：Water heater body, 2：Master controller, 3：Heat exchanger, 4：Enter cold water pipe, 5：Hot-water outlet pipe, 6：With water spot, 7：
Cold water branch pipe, 8：Memory alloy one-way valve, 9：Water flow sensor, 10：Water circulating pump.
8-1：Valve body, 8-2：Intake antrum, 8-3：Water chamber, 8-4：Valve element, 8-5：Memory alloy spring, 8-6：Delivery port,
8-7：Fixing clasp, 8-8：Connecting pole, 8-9：Backing plate.
Specific embodiment
Essence of the present utility model is more fully understood for convenience of those skilled in the art, it is new to this practicality below in conjunction with the accompanying drawings
The specific embodiment of type is described in detail.
As shown in figure 1, a kind of central fuel gas water heating device with memory alloy one-way valve, including：Water heater body 1, installs
Master controller 2, heat exchanger 3 on water heater body 1, are connected on heat exchanger 3 and enter cold water pipe 4, hot-water outlet pipe 5,
The use water spot 6 on hot-water outlet pipe 5 is connected to, and is connected to water spot 6 and the cold water branch pipe 7 entered between cold water pipe 4；Its feature
It is that the memory alloy one-way valve 8 that hot-water outlet pipe 5 is connected with cold water branch pipe 7, the memory are provided with distalmost end water spot
Alloy check valve 8 being raised with temperature and reducing valve opening；The hot-water outlet pipe 5, memory alloy one-way valve 8, the and of cold water branch pipe 7
Enter cold water pipe 4 and constitute circulation loop, the water flow sensor 9, water circulating pump being connected with master controller 2 is provided with circulation loop
10。
Wherein, the distalmost end refers to water spot, and reach this from the hot water of water heater body's outflow is passed by with water spot
Distance is farthest.
As shown in Fig. 2 the memory alloy one-way valve 8 includes：Valve body 8-1, be molded over intake antrum 8-2 in valve body 8-1,
Water chamber 8-3, is arranged on the valve element 8-4 in water chamber 8-3, and be connected to the memory alloy spring 8-5 on valve element 8-4.
The delivery port 8-6 for connecting both, the memory alloy spring 8-5 temperature distortions are provided between intake antrum 8-2 and water chamber 8-3
Promoting valve element 8-4 motions reduces the aperture between valve element 8-4 and delivery port 8-6.
In the present embodiment, fixing clasp 8-7 preferably is provided with the end of water chamber 8-3, connecting pole is provided with valve element 8-4
8-8, the valve element 8-4 is slidably mounted on fixing clasp 8-7 by connecting pole 8-8, in fixing clasp 8-7 towards valve element 8-4
Side be provided with backing plate 8-9.The memory alloy spring 8-5 is arranged between valve element 8-4 and fixing clasp 8-7 and with temperature
Rising voluntarily extends.
With reference to shown in Fig. 3-Fig. 5, when central heater opens preheating function, water temperature at memory alloy one-way valve compared with
It is low, it is T1, memory alloy spring length maintains original state L1, corresponding circulating water flow is Q in circulating line2。
As the carrying out of preheating, the water temperature at memory alloy one-way valve constantly rise, T is reached2, now memory alloy spring
Corresponding length should be L2, but because space is limited in check valve, spring-compressed causes spring force to increase, and circulation pipe
Hydraulic pressure in road remains unchanged, and reduces memory alloy one-way valve aperture, causes circulatory system interior circulation water-carrying capacity to be down to Q1。
When temperature reaches setting value T2 at memory alloy one-way valve, the water flow of water heater sensor in system is detected and followed
Ring water-carrying capacity changing value △ Q=Q2-Q1>=Q, water heater sends instruction makes water circulating pump be stopped, and water heater stops burning, in advance
Heat is completed；The water in hot-water line A-B sections be ensure that for hot water, and the water in cold water pipe B-C sections is most of for cold water.Q values are by leading
Controller is automatically generated according to following calculating formula：
Q=k (TIn advance-T0)
Unit is L/min.
K is constant coefficient, and summer takes 0.1, and winter takes 0.05.
T represents the preheating temperature of setting in advance.
T0Inflow temperature is represented, is being opened in preheating 10s, by being arranged on what is detected into the temperature sensor on cold water pipe
Temperature averages determine.
As a kind of conversion embodiment of memory alloy one-way valve, the memory alloy spring be changed to be arranged on valve element and
Raised and shortening between delivery port and with temperature.It is to reduce memorial alloy when temperature is raised that memory alloy spring plays purpose
The aperture of check valve, as the selection of memory alloy material, the selection of installation site is all routine techniques, is repeated no more here.
Used as further illustrating for above-mentioned control method, Q values can also be a setting value, when water flow sensor is detected
Water-carrying capacity changing value △ Q be more than or equal to setting value Q when, master controller sends instruction makes water circulating pump be stopped, and has preheated
Into.The span of setting value Q is 1L/min -1.5L/min.
Used as further illustrating for above-mentioned control method, preheating is completed also can be by the auto extinguishing of central fuel gas water heating device
To judge, it is however generally that, when the water-carrying capacity of gas heater misfires work less than 2.5L/min.So, in warm-up cycle mistake
Cheng Zhong, when central gas heater auto extinguishing, master controller sends instruction makes water circulating pump be stopped, and preheating is completed.
The central fuel gas water heating device that the present embodiment is provided, judges pre- indirectly by the change for detecting pipeline interior circulation water-carrying capacity
Whether heat completes, without connecting control circuit with water spot in distalmost end, you can solve the temperature that common hot water cyclesystem is present
Overshooting problem；In preheating and subscription time section, it is ensured that water is cold water in cold water pipe, realize instant-heating and open i.e.
It is cold, do not influence it is i.e. hot after can not at once use cold water problem.Simultaneously as the water of hot-water line is only heated to design temperature, fully
Save gas, electricity；More environmentally-friendly energy-conservation.
Above specific embodiment has been described in detail to essence of the present utility model, but can not be come to this reality with this
Limited with new protection domain.It should be evident that under the enlightenment of the utility model essence, the common skill of the art
Art personnel can also carry out many improvement and modification, it should be noted that these are improved and modification all falls in power of the present utility model
Within the scope of profit is claimed.
Claims (6)
1. a kind of central fuel gas water heating device with memory alloy one-way valve, including：Water heater body, on water heater body
Master controller, heat exchanger, connection on the heat exchanger enter cold water pipe, hot-water outlet pipe, be connected to the use on hot-water outlet pipe
Water spot, and be connected to water spot and the cold water branch pipe entered between cold water pipe；Characterized in that, being provided with distalmost end water spot
The memory alloy one-way valve that hot-water outlet pipe is connected with cold water branch pipe, the memory alloy one-way valve being raised with temperature and reducing valve
Door aperture；The hot-water outlet pipe, memory alloy one-way valve, cold water branch pipe and enter cold water pipe constitute circulation loop, in circulation loop
It is provided with water flow sensor, the water circulating pump being connected with master controller.
2. a kind of central fuel gas water heating device with memory alloy one-way valve according to claim 1, it is characterised in that entering
Cold water pipe is provided with the temperature sensor being connected with master controller.
3. a kind of central fuel gas water heating device with memory alloy one-way valve according to claim 1, it is characterised in that described
Memory alloy one-way valve includes：Valve body, is molded over intake antrum, water chamber in valve body, is arranged on the valve element in water chamber, and
It is connected to the memory alloy spring on valve element；The delivery port for connecting both, the note are provided between intake antrum and water chamber
Recalling alloy spring temperature distortion promotion valve core movement reduces the aperture between valve element and delivery port.
4. a kind of central fuel gas water heating device with memory alloy one-way valve according to claim 3, it is characterised in that going out
The end of water cavity is provided with fixing clasp, and connecting pole is provided with valve element, and the valve element is slidably mounted on fixing card by connecting pole
On ring, the memory alloy spring is arranged between valve element and fixing clasp and is raised with temperature and voluntarily extends.
5. a kind of central fuel gas water heating device with memory alloy one-way valve according to claim 4, it is characterised in that solid
Determine snap ring and be provided with backing plate towards the side of valve element.
6. a kind of central fuel gas water heating device with memory alloy one-way valve according to claim 3, it is characterised in that described
Memory alloy spring is arranged between valve element and delivery port and is raised with temperature and shortened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621177124.8U CN206207717U (en) | 2016-10-27 | 2016-10-27 | A kind of central fuel gas water heating device with memory alloy one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621177124.8U CN206207717U (en) | 2016-10-27 | 2016-10-27 | A kind of central fuel gas water heating device with memory alloy one-way valve |
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| Publication Number | Publication Date |
|---|---|
| CN206207717U true CN206207717U (en) | 2017-05-31 |
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ID=58758216
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621177124.8U Active CN206207717U (en) | 2016-10-27 | 2016-10-27 | A kind of central fuel gas water heating device with memory alloy one-way valve |
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| CN (1) | CN206207717U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440332A (en) * | 2016-10-27 | 2017-02-22 | 广东万家乐燃气具有限公司 | Gas-central water heater provided with memory alloy one-way valve |
| CN108825865A (en) * | 2018-07-24 | 2018-11-16 | 广东万家乐燃气具有限公司 | A kind of water transportation device and water heater |
| CN110657259A (en) * | 2019-10-10 | 2020-01-07 | 宁波方太厨具有限公司 | Bypass flow valve and gas water heater comprising same |
| CN110686096A (en) * | 2019-09-30 | 2020-01-14 | 宁波方太厨具有限公司 | Bypass constant-temperature regulating valve and gas water heater comprising same |
-
2016
- 2016-10-27 CN CN201621177124.8U patent/CN206207717U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440332A (en) * | 2016-10-27 | 2017-02-22 | 广东万家乐燃气具有限公司 | Gas-central water heater provided with memory alloy one-way valve |
| CN106440332B (en) * | 2016-10-27 | 2022-04-12 | 广东万家乐燃气具有限公司 | Central gas water heater with memory alloy one-way valve |
| CN108825865A (en) * | 2018-07-24 | 2018-11-16 | 广东万家乐燃气具有限公司 | A kind of water transportation device and water heater |
| CN110686096A (en) * | 2019-09-30 | 2020-01-14 | 宁波方太厨具有限公司 | Bypass constant-temperature regulating valve and gas water heater comprising same |
| CN110657259A (en) * | 2019-10-10 | 2020-01-07 | 宁波方太厨具有限公司 | Bypass flow valve and gas water heater comprising same |
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