CN109210793B - Bathroom cold water recovery heating system - Google Patents
Bathroom cold water recovery heating system Download PDFInfo
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- CN109210793B CN109210793B CN201810929988.8A CN201810929988A CN109210793B CN 109210793 B CN109210793 B CN 109210793B CN 201810929988 A CN201810929988 A CN 201810929988A CN 109210793 B CN109210793 B CN 109210793B
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- control valve
- temperature control
- heat exchanger
- hot water
- inlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
Abstract
The invention provides a bathroom cold water recovery heating system, which comprises a hot water tank, a temperature control valve and a heat exchanger, wherein the hot water tank is connected with the hot water tank; the hot water tank and the heat exchanger form a closed loop pipeline through a hot water circulating pipeline, a temperature control valve inlet is connected between an outlet of the hot water tank and an inlet of the heat exchanger, one outlet of the temperature control valve is connected with a shower, the other outlet of the temperature control valve is connected with a cooling water inlet of the heat exchanger, and the inlet of the hot water tank is communicated with the cooling water outlet of the heat exchanger; the temperature control valve is communicated with the shower and the hot water tank or the cooling water inlet of the heat exchanger and the hot water tank through the change of water temperature. The temperature control valve comprises a temperature control valve main body, a bias spring, a temperature control valve core, a recycled cold water outlet, a hot water outlet, a shape memory alloy spring and a temperature control valve inlet; the invention can improve the automation of the cold water recovery system, does not need external power and saves energy.
Description
Technical Field
The invention relates to the field of water heaters, in particular to a bathroom cold water recovery heating system.
Background
The bathroom cold water recovery technology is that cold water in a pipe is recovered through a bypass pipeline before bathing. The bathing equipment without a cold water recovery system discharges a part of cold water before bathing in order to improve the bathing comfort, but the operation causes the waste of water resources. Some intelligent bathroom facilities are provided in the market, and a cold water recovery system is provided, but the power part for recovering cold water is electrically driven, so that the intelligent bathroom facilities have certain limitation in the aspect of energy conservation.
The patent application No. 201620043206.7 entitled surrounding type bathroom pipeline cold water recovery heating device provides a method for recovering and heating bathroom cold water, which discharges cold water in a pipe into a surrounding type heat exchanger through a manual valve, heats the recovered cold water by using hot water in the pipe, and discharges the heated recovered water through the manual valve. The method needs manual operation and is not automatic and cyclic.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a bathroom cold water recovery heating system, which does not need any external power and makes up the defects of the existing cold water recovery technology. In addition, the recovered cold water can be collected into a hot water pipeline for circulation after being heated, and can also be manually discharged. The automation and the circulation of the cold water recovery heating system are improved.
The present invention achieves the above-described object by the following technical means.
A bathroom cold water recovery heating system comprises a hot water tank, a temperature control valve and a heat exchanger; the hot water tank and the heat exchanger form a closed loop pipeline through a hot water circulating pipeline, a temperature control valve inlet is connected between an outlet of the hot water tank and an inlet of the heat exchanger, one outlet of the temperature control valve is connected with a shower, the other outlet of the temperature control valve is connected with a cooling water inlet of the heat exchanger, and the inlet of the hot water tank is communicated with the cooling water outlet of the heat exchanger; the temperature control valve is communicated with the shower and the hot water tank or the cooling water inlet of the heat exchanger and the hot water tank through the change of water temperature.
Further, the temperature control valve comprises a temperature control valve main body, a bias spring, a temperature control valve core, a recycled cold water outlet, a hot water outlet, a shape memory alloy spring and a temperature control valve inlet; the bottom of the temperature control valve main body is provided with a temperature control valve inlet, and the side surface of the temperature control valve main body is provided with a cold water recovery outlet and a hot water outlet; a temperature control valve core is arranged in the temperature control valve main body, one end of the temperature control valve core is connected with a shape memory alloy spring, one end of the temperature control valve core is connected with a bias spring, the shape memory alloy spring deforms through temperature change to enable the temperature control valve core to rotate, and the temperature control valve core rotates to communicate a recycled cold water outlet with a temperature control valve inlet or a hot water outlet with the temperature control valve inlet; the temperature control valve inlet is connected between the outlet of the hot water tank and the inlet of the heat exchanger, the recovered cold water outlet is connected with the cooling water inlet of the heat exchanger, and the hot water outlet is connected with the shower.
Further, the cold water recovery outlet and the hot water outlet are located on the same horizontal plane, and the hot water outlet and the cold water recovery outlet are circumferentially spaced by 90 °.
Further, the shape memory alloy spring 6-6 is a non-contact type flat spiral spring.
The heat exchanger comprises finned tubes, a manual valve, a heat exchanger shell and a thermometer, wherein the finned tubes are installed on the outer side of a hot water circulation pipeline inside the heat exchanger shell, the thermometer is installed on the heat exchanger shell, the manual valve is arranged at the bottom of the heat exchanger shell, and a heat exchanger cooling water inlet and a heat exchanger cooling water outlet are formed in the heat exchanger shell.
Further, the heat exchanger heat preservation layer wraps the outer side of the heat exchanger shell.
Furthermore, check valves are respectively arranged at the cooling water inlet and the cooling water outlet of the heat exchanger.
The invention has the beneficial effects that:
1. the bathroom cold water recovery heating system provided by the invention adopts the shape memory alloy spring as the power source of the temperature control valve, improves the automation of the cold water recovery system, does not need external power, and saves energy.
2. The bathroom cold water recycling and heating system heats recycled cold water and then merges the heated recycled cold water into the hot water pipeline again, so that recycling of the recycled water is realized.
3. According to the bathroom cold water recycling and heating system, the manual valve is arranged at the bottom of the heat exchanger, so that the heated recycled water can be used for other purposes, the utilization range of the recycled water is expanded, and the utilization rate of water resources is improved.
Drawings
Fig. 1 is a schematic diagram of a bathroom cold water recovery heating system according to the present invention.
FIG. 2 is a schematic installation view of a shape memory alloy thermostatic valve according to the present invention.
Fig. 3 is a left side view of fig. 2.
FIG. 4 is a schematic diagram of the cooperation of a spring and a valve core of the shape memory alloy thermostatic valve of the present invention.
Fig. 5 is a schematic view of a heat exchanger according to the present invention.
In the figure:
1-a hot water tank; 2-hot water circulation pipeline; 3-shower switch; 4-shower; 5-shower pipes; 6-a temperature control valve; 7-a heat exchanger; 8-cold water recovery side pipe; 9-recycling a water circulation pipeline; 6-1-a thermostatic valve body; 6-2-bias spring; 6-3-temperature control valve core; 6-4-outlet of recovered cold water; 6-5-hot water outlet; 6-6-shape memory alloy spring; 6-7-spring baffle; 6-8-inlet of temperature control valve; 7-1-cold water check valve; 7-2-heat exchanger heat-insulating layer; 7-3-finned tube; 7-4-manual valve; 7-5-hot water check valve; 7-6-heat exchanger housing; 7-7-thermometer.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
As shown in fig. 1, the bathroom cold water recovery heating system of the present invention comprises a hot water tank 1, a temperature control valve 6 and a heat exchanger 7; the hot water tank 1 and the heat exchanger 7 form a closed loop pipeline through a hot water circulating pipeline 2, an inlet of a temperature control valve 6 is connected between an outlet of the hot water tank 1 and an inlet of the heat exchanger 7 through a shower pipeline 5, one outlet of the temperature control valve 6 is connected with a shower 4, the other outlet of the temperature control valve 6 is connected with a cooling water inlet of the heat exchanger 7 through a cold water recycling side pipeline 8, and an inlet of the hot water tank 1 is communicated with a cooling water outlet of the heat exchanger 7 through a recycled water circulating pipeline 9; the temperature control valve 6 is communicated with the shower 4 and the hot water tank 1 or the cooling water inlet of the heat exchanger 7 and the hot water tank 1 through the change of water temperature. The shower switch 3 is arranged on the shower pipe 5, and the shower 4 is connected with the shower switch 3 through the shower pipe 5 to form an open loop.
As shown in fig. 2, 3 and 4, the temperature control valve 6 comprises a temperature control valve main body 6-1, a biasing spring 6-2, a temperature control valve spool 6-3, a recycled cold water outlet 6-4, a hot water outlet 6-5, a shape memory alloy spring 6-6, a spring baffle 6-7 and a temperature control valve inlet 6-8; the bottom of the temperature control valve main body 6-1 is provided with a temperature control valve inlet 6-8, and the side surface of the temperature control valve main body 6-1 is provided with a recycled cold water outlet 6-4 and a hot water outlet 6-5; a temperature control valve core 6-3 is arranged in the temperature control valve main body 6-1, one end of the temperature control valve core 6-3 is connected with a shape memory alloy spring 6-6, one end of the temperature control valve core 6-3 is connected with a bias spring 6-2, a spring baffle 6-7 is used for fixing the shape memory alloy spring 6-6, the shape memory alloy spring 6-6 deforms through temperature change, so that the temperature control valve core 6-3 rotates, and the temperature control valve core 6-3 rotates to communicate a recycled cold water outlet 6-4 with a temperature control valve inlet 6-8 or a hot water outlet 6-5 with the temperature control valve inlet 6-8; the temperature control valve inlet 6-8 is connected between the outlet of the hot water tank 1 and the inlet of the heat exchanger 7, the recovered cold water outlet 6-4 is connected with the cooling water inlet of the heat exchanger 7, and the hot water outlet 6-5 is connected with the shower 4. As can be seen from FIG. 4, the inner coils of the shape memory alloy spring 6-6 and the biasing spring 6-2 are fixed on the valve core 6-3.
The recycled cold water outlet 6-4 and the hot water outlet 6-5 are positioned on the same horizontal plane, the included angle between the circle center of the hot water outlet 6-5 and the recycled cold water outlet 6-4 and the central connecting line of the pipe wall is 90 degrees, the middle opening 6-7-1 of the spring baffle is provided, the diameter of the opening 6-7-1 is larger than that of the inlet 6-8 of the temperature control valve, the shape memory alloy spring 6-6 is a non-contact type plane volute spring and has a two-way memory effect or a whole-course memory effect, the two-way memory effect is that the alloy recovers a high-temperature phase shape when heated and a low-temperature phase shape when cooled, the whole-course memory effect is that the high-temperature phase shape is recovered when heated, and the low-temperature phase shape is the same in shape and opposite in.
When the shower switch 3 is turned on, as the front section is mixed cold water, the mixed water sequentially enters the temperature control valve through the temperature control valve inlet 6-8 and the spring baffle 6-7, the shape memory alloy spring 6-6 generates corresponding deformation by sensing the temperature of the mixed water, the deformation of the shape memory alloy spring 6-6 drives the temperature control valve core 6-3 to rotate, and the temperature control valve core 6-3 rotates to control the closing and opening of the recycled cold water outlet 6-4 and the hot water outlet 6-5. When the mixed water temperature is lower than the set temperature value, the recycled cold water outlet 6-4 is opened, the hot water outlet 6-5 is closed, when the mixed water temperature is higher than the set temperature value, the recycled cold water outlet 6-4 is closed, and the hot water outlet 6-5 is opened, so that normal bathing can be carried out.
As shown in fig. 5, the heat exchanger 7 comprises a cold water one-way valve 7-1, a heat exchanger heat-insulating layer 7-2 and a finned tube 7-3, the heat exchanger comprises a manual valve 7-4, a hot water one-way valve 7-5, a heat exchanger shell 7-6 and a thermometer 7-7, wherein a heat exchanger heat-insulating layer 7-2 is coated on the surface of the heat exchanger shell 7-6, a finned tube 7-3 is arranged on the periphery of a hot water circulating pipeline 2 penetrating through the interior of a heat exchanger main body, a cold water one-way valve 7-1 is arranged at a cooling water inlet of the heat exchanger 7, the cooling water inlet of the heat exchanger 7 is connected with a cold water recovery side pipeline 8, the hot water one-way valve 7-5 is arranged at a cooling water outlet of the heat exchanger 7, the manual valve 7-4 is arranged on the heat exchanger shell 7-6, and the thermometer. When cold water in the cold water recovery side pipe 8 enters the heat exchanger from the cold water one-way valve 7-1, heat exchange is carried out through the finned pipe 7-3 to reach a set temperature, then the cold water is sent to the hot water circulation pipeline 2 through the hot water one-way valve 7-5, the temperature can be displayed according to the thermometer 7-7, and when the temperature reaches a required temperature, hot water in the heat exchanger is released manually through the manual valve 7-4.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (6)
1. A bathroom cold water recovery heating system is characterized by comprising a hot water tank (1), a temperature control valve (6) and a heat exchanger (7); the hot water tank (1) and the heat exchanger (7) form a closed loop pipeline through a hot water circulating pipeline (2), an inlet of a temperature control valve (6) is connected between an outlet of the hot water tank (1) and an inlet of the heat exchanger (7), one outlet of the temperature control valve (6) is connected with a shower (4), the other outlet of the temperature control valve (6) is connected with a cooling water inlet of the heat exchanger (7), and an inlet of the hot water tank (1) is communicated with a cooling water outlet of the heat exchanger (7); the temperature control valve (6) is communicated with the shower (4) and the hot water tank (1) or the cooling water inlet of the heat exchanger (7) and the hot water tank (1) through the change of water temperature; the temperature control valve (6) comprises a temperature control valve main body (6-1), a bias spring (6-2), a temperature control valve spool (6-3), a recycled cold water outlet (6-4), a hot water outlet (6-5), a shape memory alloy spring (6-6) and a temperature control valve inlet (6-8); the bottom of the temperature control valve main body (6-1) is provided with a temperature control valve inlet (6-8), and the side surface of the temperature control valve main body (6-1) is provided with a recycled cold water outlet (6-4) and a hot water outlet (6-5); a temperature control valve core (6-3) is arranged in the temperature control valve main body (6-1), one end of the temperature control valve core (6-3) is connected with a shape memory alloy spring (6-6), one end of the temperature control valve core (6-3) is connected with a bias spring (6-2), the shape memory alloy spring (6-6) deforms through temperature change, so that the temperature control valve core (6-3) rotates, and the temperature control valve core (6-3) rotates to communicate a recycled cold water outlet (6-4) with a temperature control valve inlet (6-8) or a hot water outlet (6-5) with the temperature control valve inlet (6-8); the temperature control valve inlet (6-8) is connected between the outlet of the hot water tank (1) and the inlet of the heat exchanger (7), the recycled cold water outlet (6-4) is connected with the cooling water inlet of the heat exchanger (7), and the hot water outlet (6-5) is connected with the shower (4).
2. A bathroom cold water recovery heating system according to claim 1, characterized in that the recovered cold water outlet (6-4) is at the same level as the hot water outlet (6-5), and the hot water outlet (6-5) is circumferentially spaced from the recovered cold water outlet (6-4) by 90 °.
3. A bathroom cold water recovery heating system according to claim 1, characterized in that said shape memory alloy spring (6-6) is a non-contact type flat spiral spring.
4. The bathroom cold water recovery heating system according to claim 1, wherein the heat exchanger (7) comprises finned tubes (7-3), manual valves (7-4), a heat exchanger shell (7-6) and thermometers (7-7), the finned tubes (7-3) are installed on the outer side of the hot water circulation pipeline (2) inside the heat exchanger shell (7-6), the thermometers (7-7) are installed on the heat exchanger shell (7-6), the manual valves (7-4) are arranged at the bottom of the heat exchanger shell (7-6), and a cooling water inlet of the heat exchanger (7) and a cooling water outlet of the heat exchanger (7) are arranged on the heat exchanger shell (7-6).
5. Bathroom cold water recovery heating system according to claim 4, characterized in that the heat exchanger insulation (7-2) is wrapped outside the heat exchanger housing (7-6).
6. A bathroom cold water recovery heating system according to claim 1, characterized in that the heat exchanger (7) cooling water inlet and the heat exchanger (7) cooling water outlet are respectively provided with a check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929988.8A CN109210793B (en) | 2018-08-15 | 2018-08-15 | Bathroom cold water recovery heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929988.8A CN109210793B (en) | 2018-08-15 | 2018-08-15 | Bathroom cold water recovery heating system |
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| Publication Number | Publication Date |
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| CN109210793A CN109210793A (en) | 2019-01-15 |
| CN109210793B true CN109210793B (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810929988.8A Active CN109210793B (en) | 2018-08-15 | 2018-08-15 | Bathroom cold water recovery heating system |
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| CN (1) | CN109210793B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110328065A (en) * | 2019-06-14 | 2019-10-15 | 周峰 | A kind of cold water can automatic back flow shower nozzle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3742603A1 (en) * | 1987-12-16 | 1989-06-29 | Grohe Armaturen Friedrich | Device for volume compensation in an overflow hot-water storage tank |
| CN1987283A (en) * | 2006-11-24 | 2007-06-27 | 任勇 | Gas firing water heater |
| CN202646893U (en) * | 2012-05-22 | 2013-01-02 | 天津大学 | Bathroom temperature control valve driven by shape memory alloy spiral spring |
| CN205299957U (en) * | 2016-01-18 | 2016-06-08 | 华北电力大学 | Heating device is retrieved to surrounding type bathroom pipeline cold water |
| CN206669027U (en) * | 2017-04-26 | 2017-11-24 | 湖北工业大学 | A kind of water saving loop apparatus based on self-supporting temperature-sensing valve |
-
2018
- 2018-08-15 CN CN201810929988.8A patent/CN109210793B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3742603A1 (en) * | 1987-12-16 | 1989-06-29 | Grohe Armaturen Friedrich | Device for volume compensation in an overflow hot-water storage tank |
| CN1987283A (en) * | 2006-11-24 | 2007-06-27 | 任勇 | Gas firing water heater |
| CN202646893U (en) * | 2012-05-22 | 2013-01-02 | 天津大学 | Bathroom temperature control valve driven by shape memory alloy spiral spring |
| CN205299957U (en) * | 2016-01-18 | 2016-06-08 | 华北电力大学 | Heating device is retrieved to surrounding type bathroom pipeline cold water |
| CN206669027U (en) * | 2017-04-26 | 2017-11-24 | 湖北工业大学 | A kind of water saving loop apparatus based on self-supporting temperature-sensing valve |
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| CN109210793A (en) | 2019-01-15 |
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Effective date of registration: 20210218 Address after: 407, 4th floor, 22 Yaojia Road, new energy industrial park, Hailing District, Taizhou City, Jiangsu Province 225300 Applicant after: Taizhou langrunda Testing Technology Co.,Ltd. Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Applicant before: JIANGSU University |
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