CN109798393B - Automatic flow regulator based on hot water distribution - Google Patents
Automatic flow regulator based on hot water distribution Download PDFInfo
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- CN109798393B CN109798393B CN201910143610.XA CN201910143610A CN109798393B CN 109798393 B CN109798393 B CN 109798393B CN 201910143610 A CN201910143610 A CN 201910143610A CN 109798393 B CN109798393 B CN 109798393B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000007789 sealing Methods 0.000 claims abstract description 85
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 239000012188 paraffin wax Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052753 mercury Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 230000008859 change Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to the technical field of floor heating and heat supply, and discloses an automatic flow regulator based on hot water distribution, which comprises a regulator shell, wherein the bottom of a regulating cavity is communicated with the side wall of the inner end of a water inlet channel through an orifice, one side of the bottom of the regulating cavity is communicated with the water outlet channel through the orifice, a core rod is arranged in the regulating cavity, a conical sealing surface is arranged at one end of the orifice, which faces the regulating cavity, of the core rod, a conical sealing seat is arranged at the front end of the core rod, a threaded sleeve is formed by extending the outer end of the regulating cavity, a regulating column is arranged in the threaded sleeve and is in threaded connection with the threaded sleeve, a sealing column is formed by extending the inner end of the regulating column, a regulating groove is formed at the outer end of the regulating column, a flange sleeve is arranged at the rear end of the core rod, a reset pressure spring is arranged between the flange sleeve and the bottom surface of the regulating cavity, and a thermal expansion component is arranged in the flange sleeve. The invention can automatically, real-time and automatically adjust the opening degree of the throttle hole according to the temperature of the hot water in the water return pipe so as to change the flow of the hot water, improve the utilization rate of heat energy and keep the indoor stable temperature.
Description
Technical Field
The invention relates to the technical field of floor heating, in particular to an automatic flow regulator based on hot water distribution.
Background
With the improvement of living standard of people, many apartments and residential rooms adopt ground heating, the ground heating can be divided into electric heating type ground heating and water ground heating according to functions, a steel cage is paved below a floor, a water pipe (usually a copper pipe) is paved below the steel cage, and water is heated to 50-60 ℃ through a heater (the water ground heating is usually heated by a boiler) and then is fed into the water pipe below the floor, so that the whole indoor room is uniformly heated. In the whole hot water distribution system, in order to adjust the flow of hot water, a manual valve or an automatic regulating valve is required to be arranged on a water return pipe so as to adjust the flow of hot water, for example, if the temperature of the water on the water return pipe is higher than a set value, the waste of heat energy is larger, at the moment, the opening degree of the manual valve or the electric control valve is required to be reduced so as to slow down the backflow of the hot water in the water return pipe, the heat exchange time between the hot water and a room is prolonged, the heat energy utilization rate in the hot water is increased, and similarly, when the temperature of the water in the water return pipe is lower than the set value, the shortage of hot water heating is indicated, at the moment, the opening degree of the manual valve or the electric control valve is required to be increased, the flow rate of the hot water is increased, and the indoor heat supply amount is ensured. However, in the actual use process, the manual valve is very inconvenient to operate, so that the current mainstream is to set an electric control valve on the water return pipe, then detect the indoor temperature through a temperature sensor, and control the opening degree of the electric control valve according to the temperature detected by the temperature sensor, so that the indoor relatively stable temperature is maintained. However, the whole system is complex by controlling the hot water return quantity through the temperature sensor, the electric control valve, the controller and the like, and a plurality of temperature sensors are required to be arranged for different rooms, so that the whole system is complex and has more faults.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an automatic flow regulator based on hot water distribution, which has a simple and stable overall structure, can automatically regulate the flow of backwater according to the water temperature in a backwater pipe, saves energy and can keep the room temperature stable.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
An automatic flow regulator based on hot water distribution comprises a regulator shell, wherein one end of the regulator shell is provided with a water inlet channel, the other end of the regulator shell is provided with a water outlet channel, and the side surface of the regulator shell is provided with a regulating cavity; the bottom of regulation chamber is through orifice and water inlet channel's inner lateral wall intercommunication, bottom one side of regulation chamber is through water conservancy diversion hole and water outlet channel's inner intercommunication, be equipped with the core bar in the regulation chamber, core bar and orifice coaxial distribution, the orifice is equipped with the toper sealed face in its one end towards regulation chamber, the front end of core bar is equipped with the toper sealed face complex toper seal seat, the outer end extension of regulation chamber forms the screw thread cover, be equipped with the adjusting column in the screw thread cover, threaded connection between adjusting column and the screw thread cover, the inner extension of adjusting column forms the sealing column, sliding seal between sealing column and the regulation chamber, the outer end of adjusting column is equipped with the adjustment groove, the rear end of core bar is equipped with the flange cover, be equipped with the pressure spring that resets between flange cover and the bottom surface of regulation chamber, be equipped with thermal expansion subassembly in the flange cover, thermal expansion subassembly's rear end passes through connecting rod and sealing column fixed connection.
The regulator is arranged on a water return pipe of the water floor heating system, the thermal expansion assembly expands with heat and contracts with cold, the initial position of the thermal expansion assembly is regulated through the regulating column, namely, the initial opening of the orifice is regulated, and the initial state corresponds to a set temperature value; the hot water in the water return pipe flows back through the water inlet channel, the throttling hole, the adjusting cavity, the diversion hole and the water outlet channel in sequence; when the temperature of the hot water entering the adjusting cavity is higher than a set value, the thermal expansion assembly expands to push the core rod to move towards the throttle hole, so that the flow of the hot water at the throttle hole is reduced, the heat exchange time between the hot water in the water pipe of the indoor floor heating and the indoor space is prolonged, and the heat energy utilization is promoted; similarly, when the temperature of hot water entering the adjusting cavity is lower than a set value, the thermal expansion assembly can shrink, the core rod is far away from the throttling hole under the action of the reset pressure spring, so that the water flow at the throttling hole is improved, the sufficiency of hot water for indoor heat supply is ensured, and in the actual use process, the opening of the throttling hole can be adjusted in real time by the thermal expansion assembly according to the water temperature of the return pipe, so that the indoor stable temperature environment is maintained.
Preferably, a connecting seat is arranged at the front end of the connecting rod, and the connecting seat is fixedly connected with the expansion assembly.
Preferably, an annular indicating sheet is fixed at the edge of the outer end of the adjusting column, scale values are arranged on the annular indicating sheet, and a pre-tightening pressure spring is arranged at the inner end of the adjusting column. The scale value on the annular indicating sheet can indicate the rotation angle of the adjusting column, so that the temperature value can be accurately set.
Preferably, an annular groove is formed in the circumferential surface of the sealing column, and a sealing ring is arranged in the annular groove. The sealing ring plays a sealing role to prevent water leakage.
Preferably, a threaded hole is formed in one side of the outer end of the threaded sleeve, a limit bolt is arranged in the threaded hole, and a limit gasket is arranged between the limit bolt and the end face of the threaded sleeve. The limiting gasket can prevent the adjusting column from falling out of the threaded sleeve.
Preferably, the outer end of the water outlet channel is provided with a pipe joint, the pipe joint is in threaded connection with the water outlet channel, the outer side of the pipe joint is sleeved with a connecting sleeve, the outer side of the pipe joint is provided with a limiting convex ring, and the inner end of the connecting sleeve is provided with a limiting inward flanging. The pipe joint is convenient for the water outlet channel to be connected with the reflux water tank.
Preferably, the thermal expansion assembly comprises an inner sealing sleeve and an outer sealing sleeve, wherein the inner sealing sleeve and the outer sealing sleeve are of columnar structures, the opening ends of the inner sealing sleeve and the outer sealing sleeve are mutually buckled and connected, a connecting column is arranged at the outer bottom of the inner sealing sleeve, a limiting sleeve is arranged at the opening end of the outer sealing sleeve, and the limiting sleeve is in threaded connection with the outer sealing sleeve; the inner bottom of the outer sealing sleeve is provided with a round plunger extending into the inner sealing sleeve, a medium cavity is formed between the outer end of the round plunger and the bottom surface of the inner sealing sleeve, and the medium cavity is filled with a thermal expansion medium. When hot water enters the adjusting cavity, the opening degree of the throttling hole is automatically adjusted by utilizing the principle of thermal expansion and contraction of a thermal expansion medium, and the stability is good.
Preferably, the thermal expansion medium is any one of paraffin, alcohol, and mercury. The opening degree of the throttle hole is automatically adjusted by utilizing the principles of thermal expansion and contraction of paraffin, alcohol and mercury so as to change the flow rate of hot water at the water return pipe.
Preferably, a plurality of medium holes communicated with the medium cavity are formed in the plunger, a sealing ring is arranged between the outer side of the inner sealing sleeve and the inner wall of the outer sealing sleeve, and a sealing ring is also arranged between the outer wall of the plunger and the inner wall of the inner sealing sleeve. The dielectric orifice can increase the content of the thermal expansion medium within the dielectric cavity, thereby increasing the sensitivity of the thermal expansion assembly.
Therefore, the invention can automatically, real-time and automatically adjust the opening of the throttle hole according to the temperature of the hot water in the water return pipe so as to change the flow of the hot water, improve the heat energy utilization rate and keep the indoor stable temperature.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is a partially enlarged schematic view of fig. 2 at a.
Fig. 4 is a schematic structural view of a thermal expansion assembly.
In the figure: the regulator comprises a regulator housing 1, a water inlet channel 2, a water outlet channel 3, an adjusting cavity 4, an orifice 5, a conical sealing surface 50, a diversion hole 6, a core rod 7, a conical sealing seat 70, a flange sleeve 71, a threaded sleeve 8, an adjusting column 9, an adjusting groove 90, an annular indicating piece 91, a pre-compression spring 92, a sealing column 10, a sealing ring 11, a restoring compression spring 12, a thermal expansion assembly 13, a connecting rod 14, a connecting seat 15, a threaded hole 16, a limit bolt 17, a limit gasket 18, a pipe joint 19, a limit convex ring 190, a connecting sleeve 20, a limit inward flanging 200, an inner sealing sleeve 130, an outer sealing sleeve 131, a connecting column 132, a limit sleeve 133, a plunger 134, a medium cavity 135, a medium hole 136 and a sealing ring 137.
Detailed Description
The invention is further described with reference to the drawings and detailed description which follow:
The automatic flow regulator based on hot water distribution as shown in fig. 1 and 2 comprises a regulator housing 1, wherein one end of the regulator housing is provided with a water inlet channel 2, the other end of the regulator housing is provided with a water outlet channel 3, and the side surface of the regulator housing is provided with a regulating cavity 4; the bottom of the adjusting cavity is communicated with the inner end side wall of the water inlet channel through an orifice 5, one side of the bottom of the adjusting cavity is communicated with the inner end of the water outlet channel through a diversion hole 6, a core rod 7 is arranged in the adjusting cavity, the core rod and the orifice are coaxially distributed, as shown in fig. 3, a conical sealing surface 50 is arranged at one end of the orifice 5 facing the adjusting cavity, a conical sealing seat 70 matched with the conical sealing surface is arranged at the front end of the core rod 7, a threaded sleeve 8 is formed by extending the outer end of the adjusting cavity, an adjusting column 9 is arranged in the threaded sleeve, the adjusting column is in threaded connection with the threaded sleeve, a sealing column 10 is formed by extending the inner end of the adjusting column, sliding seal is arranged between the sealing column and the adjusting cavity, an annular groove 11 is arranged on the circumferential surface of the sealing column, a sealing ring 11 is arranged in the annular groove, a flange sleeve 71 is arranged at the rear end of the core rod 7, a reset pressure spring 12 is arranged between the flange sleeve and the bottom surface of the adjusting cavity, a thermal expansion assembly 13 is arranged in the flange sleeve, the rear end of the thermal expansion assembly is fixedly connected with the sealing column 10 through a connecting rod 14, a connecting seat 15 is arranged at the front end of the connecting rod, and the expansion assembly is fixedly connected with the expansion assembly; the outer end of the adjusting column 9 is provided with an adjusting groove 90, the edge of the outer end of the adjusting column is fixedly provided with an annular indicating sheet 91, the annular indicating sheet is provided with scale values, the inner end of the adjusting column is provided with a pre-compression spring 92, one side of the outer end of the threaded sleeve is provided with a threaded hole 16, the threaded hole is internally provided with a limit bolt 17, and a limit gasket 18 is arranged between the limit bolt and the end face of the threaded sleeve; the outer end of the water outlet channel 3 is provided with a pipe joint 19, the pipe joint is in threaded connection with the water outlet channel, a connecting sleeve 20 is sleeved on the outer side of the pipe joint, a limiting convex ring 190 is arranged on the outer side of the pipe joint 19, and a limiting inward flanging 200 is arranged on the inner end of the connecting sleeve.
As shown in fig. 4, the thermal expansion assembly 13 comprises an inner sealing sleeve 130 and an outer sealing sleeve 131, wherein the inner sealing sleeve and the outer sealing sleeve are in columnar structures, the opening ends of the inner sealing sleeve and the outer sealing sleeve are mutually buckled and connected, a connecting column 132 is arranged at the outer bottom of the inner sealing sleeve, a limit sleeve 133 is arranged at the opening end of the outer sealing sleeve, and the limit sleeve is in threaded connection with the outer sealing sleeve; the inner bottom of the outer sealing sleeve is provided with a round plunger 134 extending into the inner sealing sleeve, a medium cavity 135 is formed between the outer end of the round plunger and the bottom surface of the inner sealing sleeve, a plurality of medium holes 136 communicated with the medium cavity are formed in the round plunger, a sealing ring 137 is arranged between the outer side of the inner sealing sleeve and the inner wall of the outer sealing sleeve, a sealing ring is also arranged between the outer wall of the round plunger and the inner wall of the inner sealing sleeve, a thermal expansion medium is filled in the medium cavity, and the thermal expansion medium is any one of mercury, alcohol and paraffin, and paraffin is adopted as the thermal expansion medium in the embodiment.
The principle of the invention is as follows, in combination with the accompanying drawings: the regulator is arranged on a water return pipe of the water floor heating system, the thermal expansion assembly expands with heat and contracts with cold, the initial position of the thermal expansion assembly is regulated through the regulating column, namely, the initial opening of the orifice is regulated, and the initial state corresponds to a set temperature value; the hot water in the water return pipe flows back through the water inlet channel, the throttling hole, the adjusting cavity, the diversion hole and the water outlet channel in sequence; when the temperature of the hot water entering the adjusting cavity is higher than a set value, the thermal expansion assembly expands to push the core rod to move towards the throttle hole, so that the flow of the hot water at the throttle hole is reduced, the heat exchange time between the hot water in the water pipe of the indoor floor heating and the indoor space is prolonged, and the heat energy utilization is promoted; similarly, when the temperature of hot water entering the adjusting cavity is lower than a set value, the thermal expansion assembly can shrink, the core rod is far away from the throttling hole under the action of the reset pressure spring, so that the water flow at the throttling hole is improved, the sufficiency of hot water for indoor heat supply is ensured, and in the actual use process, the opening of the throttling hole can be adjusted in real time by the thermal expansion assembly according to the water temperature of the return pipe, so that the indoor stable temperature environment is maintained.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present invention to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present invention.
Claims (4)
1. An automatic flow regulator based on hot water distribution comprises a regulator shell, and is characterized in that one end of the regulator shell is provided with a water inlet channel, the other end of the regulator shell is provided with a water outlet channel, and the side surface of the regulator shell is provided with a regulating cavity; the bottom of the adjusting cavity is communicated with the inner end side wall of the water inlet channel through an orifice, one side of the bottom of the adjusting cavity is communicated with the inner end of the water outlet channel through a diversion hole, a core rod is arranged in the adjusting cavity, the core rod and the orifice are coaxially distributed, a conical sealing surface is arranged at one end of the orifice facing the adjusting cavity, a conical sealing seat matched with the conical sealing surface is arranged at the front end of the core rod, a thread bush is formed by extending the outer end of the adjusting cavity, an adjusting column is arranged in the thread bush, the adjusting column is in threaded connection with the thread bush, a sealing column is formed by extending the inner end of the adjusting column, the sealing column is in sliding sealing with the adjusting cavity, an adjusting groove is formed at the outer end of the adjusting column, a flange bush is arranged at the rear end of the core rod, a reset pressure spring is arranged between the flange bush and the bottom surface of the adjusting cavity, a thermal expansion assembly is arranged in the flange bush, and the rear end of the thermal expansion assembly is fixedly connected with the sealing column through a connecting rod;
The front end of the connecting rod is provided with a connecting seat which is fixedly connected with the expansion assembly;
an annular indicating sheet is fixed at the edge of the outer end of the adjusting column, scale values are arranged on the annular indicating sheet, and a pre-tightening pressure spring is arranged at the inner end of the adjusting column;
the thermal expansion assembly comprises an inner sealing sleeve and an outer sealing sleeve, wherein the inner sealing sleeve and the outer sealing sleeve are of columnar structures, the opening ends of the inner sealing sleeve and the outer sealing sleeve are mutually buckled and connected, a connecting column is arranged at the outer bottom of the inner sealing sleeve, a limit sleeve is arranged at the opening end of the outer sealing sleeve, and the limit sleeve is in threaded connection with the outer sealing sleeve; the inner bottom of the outer sealing sleeve is provided with a round plunger extending into the inner sealing sleeve, a medium cavity is formed between the outer end of the round plunger and the bottom surface of the inner sealing sleeve, and a thermal expansion medium is filled in the medium cavity;
The thermal expansion medium is any one of paraffin, alcohol and mercury;
The sealing device is characterized in that a plurality of medium holes communicated with the medium cavity are formed in the plunger, a sealing ring is arranged between the outer side of the inner sealing sleeve and the inner wall of the outer sealing sleeve, and a sealing ring is also arranged between the outer wall of the plunger and the inner wall of the inner sealing sleeve.
2. An automatic flow regulator based on hot water distribution according to claim 1, wherein an annular groove is provided on the circumferential surface of the sealing post, and a seal ring is provided in the annular groove.
3. The automatic flow regulator based on hot water distribution according to claim 1, wherein a threaded hole is formed in one side of the outer end of the threaded sleeve, a limit bolt is arranged in the threaded hole, and a limit gasket is arranged between the limit bolt and the end face of the threaded sleeve.
4. An automatic flow regulator based on hot water distribution according to claim 1 or 3, wherein the outer end of the water outlet channel is provided with a pipe joint, the pipe joint is in threaded connection with the water outlet channel, the outer side of the pipe joint is sleeved with a connecting sleeve, the outer side of the pipe joint is provided with a limiting convex ring, and the inner end of the connecting sleeve is provided with a limiting inward flanging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143610.XA CN109798393B (en) | 2019-02-25 | 2019-02-25 | Automatic flow regulator based on hot water distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143610.XA CN109798393B (en) | 2019-02-25 | 2019-02-25 | Automatic flow regulator based on hot water distribution |
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| Publication Number | Publication Date |
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| CN109798393A CN109798393A (en) | 2019-05-24 |
| CN109798393B true CN109798393B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910143610.XA Active CN109798393B (en) | 2019-02-25 | 2019-02-25 | Automatic flow regulator based on hot water distribution |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110773687A (en) * | 2019-10-24 | 2020-02-11 | 江阴市恒润重工股份有限公司 | Forming method of low-temperature-resistant forging for petrochemical industry |
| CN113375219B (en) * | 2021-06-30 | 2022-05-10 | 浙江森拉特暖通设备有限公司 | Temperature-variable indoor hot water heating radiator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4417689A (en) * | 1981-08-31 | 1983-11-29 | Akira Sasaki | Pressure regulator with temperature compensation device |
| CN2408320Y (en) * | 2000-02-21 | 2000-11-29 | 王祥富 | Self control thermostat valve |
| CN2789535Y (en) * | 2005-03-22 | 2006-06-21 | 舟山市霹雳马洁具有限公司 | Automatic gas water heater constant temperature regulator |
| GB0911690D0 (en) * | 2009-02-20 | 2009-08-12 | Xie Qingjun | Constant temperature and balanced pressure pipeline valve |
| CN201547256U (en) * | 2009-12-13 | 2010-08-11 | 宁波昌华铜制品有限公司 | Temperature-controlled passive automatic flow regulating valve |
| CN105221826A (en) * | 2015-10-10 | 2016-01-06 | 广州迪森家用锅炉制造有限公司 | Temperature-sensitive Flow-rate adjustment spool and temperature-sensitive flow control valve |
| CN208296337U (en) * | 2018-05-17 | 2018-12-28 | 中山卫丰电器有限公司 | A kind of constant temp gas heating wall-hanging furnace of induction water temperature control gas flow |
| CN209671736U (en) * | 2019-02-25 | 2019-11-22 | 上海喜远国际贸易有限公司 | A kind of automatic flow adjuster based on hot water distribution |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10914393B2 (en) * | 2013-02-18 | 2021-02-09 | Nicholas Tallos | Multistage automated thermal balancing valve |
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2019
- 2019-02-25 CN CN201910143610.XA patent/CN109798393B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4417689A (en) * | 1981-08-31 | 1983-11-29 | Akira Sasaki | Pressure regulator with temperature compensation device |
| CN2408320Y (en) * | 2000-02-21 | 2000-11-29 | 王祥富 | Self control thermostat valve |
| CN2789535Y (en) * | 2005-03-22 | 2006-06-21 | 舟山市霹雳马洁具有限公司 | Automatic gas water heater constant temperature regulator |
| GB0911690D0 (en) * | 2009-02-20 | 2009-08-12 | Xie Qingjun | Constant temperature and balanced pressure pipeline valve |
| CN201547256U (en) * | 2009-12-13 | 2010-08-11 | 宁波昌华铜制品有限公司 | Temperature-controlled passive automatic flow regulating valve |
| CN105221826A (en) * | 2015-10-10 | 2016-01-06 | 广州迪森家用锅炉制造有限公司 | Temperature-sensitive Flow-rate adjustment spool and temperature-sensitive flow control valve |
| CN208296337U (en) * | 2018-05-17 | 2018-12-28 | 中山卫丰电器有限公司 | A kind of constant temp gas heating wall-hanging furnace of induction water temperature control gas flow |
| CN209671736U (en) * | 2019-02-25 | 2019-11-22 | 上海喜远国际贸易有限公司 | A kind of automatic flow adjuster based on hot water distribution |
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Effective date of registration: 20240513 Address after: 201715 3rd floor, building 1, 3424 Zhufeng Road, Liantang Town, Qingpu District, Shanghai Applicant after: Shanghai Yixiu Ge Internet Technology Co.,Ltd. Country or region after: China Address before: 200131, Room 809A, 8th Floor, No. 355 Fute West 1st Road, China (Shanghai) Pilot Free Trade Zone, Pudong New Area, Shanghai Applicant before: SHANGHAI XIYUAN INTERNATIONAL TRADE Co.,Ltd. Country or region before: China Applicant before: Jin Mingkui Country or region before: Republic of Korea Applicant before: Dong Chao |
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