CN110017605B - Exhaust device and hot water equipment adopting same - Google Patents
Exhaust device and hot water equipment adopting same Download PDFInfo
- Publication number
- CN110017605B CN110017605B CN201910196271.1A CN201910196271A CN110017605B CN 110017605 B CN110017605 B CN 110017605B CN 201910196271 A CN201910196271 A CN 201910196271A CN 110017605 B CN110017605 B CN 110017605B
- Authority
- CN
- China
- Prior art keywords
- water
- gas
- exhaust
- water inlet
- liquid separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
Abstract
The invention provides an exhaust device, which comprises a shell, wherein a gas-liquid separation cavity which is vertically arranged is defined in the shell. A water inlet channel extends into the gas-liquid separation chamber, and a water inlet is formed at the top of the water inlet channel. The water draining passage is communicated with the gas-liquid separating cavity through a water draining port, and the water draining port is vertically higher than the water draining port. And the exhaust port is communicated with the gas-liquid separation cavity and is vertically higher than the water inlet. Because the water inlet of the exhaust device is lower than the exhaust port but higher than the water outlet, the gas can escape from the water to be prevented from entering the drainage channel, and the situation that the heating device is dried due to the fact that the gas touches the water flow sensor by mistake is prevented.
Description
Technical Field
The invention relates to the field of hot water equipment, in particular to an exhaust device suitable for household hot water equipment and hot water equipment adopting the exhaust device.
Background
Domestic hot water equipment, such as a water storage type electric water heater, can not meet the daily life requirements of people more and more due to the limitation of the water yield of heated water. The instant electric water heater has been developed rapidly in recent years because the instant heating hot water has enough power and the water outlet amount is not limited. The instant electric water heater has the following characteristics: 1. the heating power is high; 2. the water capacity of the heater is very small; 3. the water heater is controlled by a water flow sensor to start and stop heating. However, the water flow sensor cannot distinguish whether water or air is coming in, so that when a large amount of gas is in the water inlet pipeline, the water flow sensor can still trigger the heater to start working, and the water heater can be dried. Because the heater (especially the 'bare wire type' heater) has large power and small capacity, the temperature can be rapidly increased within a few seconds to damage the heater, thereby leading water and electricity to leak and causing accidents.
Chinese patent publication CN 104110499 a discloses an electromagnetic water valve which can control the circulation of water and also control the discharge of gas. Under the ideal condition, when water flows in the channel, a membrane is pressed to close the exhaust channel, and the electromagnetic water valve is used as a common electromagnetic water valve; when the water pressure disappears, the film is opened to allow gas to enter or discharge. However, since the closing of the exhaust passage is established above a certain water pressure, and the opening or closing of the exhaust passage depends on the setting of the diaphragm, such an electromagnetic water valve is not suitable for the instant electric water heater. For example, if the water inlet pipeline contains gas, but the external air pressure is greater than the opening pressure of the membrane, the gas in the pipeline cannot be smoothly discharged, so that the water heater is dry-burned; in addition, if the water pressure cannot reach the closing value of the membrane or the water flow already flows out through the exhaust port before the pressure is not built, water leakage is caused, and therefore electrical elements inside the water heater are damaged; in some water sources, such as mountain springs, the water inherently contains gas, and the water pressure closes the membrane, so that the gas in the water cannot be discharged, and the heater is damaged due to overheating.
In view of the above, there is a need for an improved hot water apparatus to solve the above problems.
Disclosure of Invention
The invention aims to provide an exhaust device which can effectively exhaust gas in a pipeline or gas contained in water so as to avoid dry burning of hot water equipment.
The invention also aims to provide a hot water device adopting the exhaust device.
In order to achieve one of the above objects, the present invention provides an exhaust apparatus, which includes a housing defining a vertically disposed gas-liquid separation chamber therein. A water inlet channel extends into the gas-liquid separation chamber, and a water inlet is formed at the top of the water inlet channel. The water draining passage is communicated with the gas-liquid separating cavity through a water draining port, and the water draining port is vertically higher than the water draining port. And the exhaust port is communicated with the gas-liquid separation cavity and is vertically higher than the water inlet.
As a further improvement of the invention, the top of the gas-liquid separation chamber is provided with an automatic exhaust valve, and the exhaust port is formed on the automatic exhaust valve.
As a further improvement of the invention, the automatic exhaust valve comprises a float positioned in the gas-liquid separation chamber, and a valve rod linked with the float to open or close the exhaust port.
As a further improvement of the invention, the exhaust device also comprises a baffle plate which is arranged in the gas-liquid separation cavity and is positioned between the water inlet and the exhaust port.
As a further improvement of the invention, the air discharge device further comprises a check valve disposed in the drain passage, the check valve having a specific opening pressure.
To achieve the above-mentioned another object, the present invention further provides a water heating apparatus including a housing and a heating device disposed in the housing. A water inlet pipeline and a water outlet pipeline are matched with the heating device and respectively partially extend out of the shell. A water flow sensor is disposed in the water inlet line. The exhaust device is connected with the water inlet pipeline.
As a further development of the invention, the exhaust is located upstream of the water flow sensor.
As a further development of the invention, the exhaust device is arranged in the housing.
As a further improvement of the invention, the exhaust device is arranged outside the housing.
As a further improvement of the invention, the heating device comprises a heat-insulating cover and a resistance wire arranged in the heat-insulating cover.
Compared with the prior art, the invention has the beneficial effects that: the water inlet of the exhaust device is lower than the exhaust port but higher than the water outlet, so that gas can escape from water and can be prevented from entering the drainage channel, and the situation that the heating device is dried due to mistaken touch of the water flow sensor is prevented; in addition, in a preferred embodiment, a one-way valve with certain opening pressure is arranged in the drainage channel, so that gas can be further prevented from passing through the drainage channel; in addition, in a preferred embodiment, water spillage from the exhaust port is avoided by providing a baffle between the exhaust port and the water inlet and/or by using an automatic exhaust valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings related to the present invention in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of the working principle of a hot water apparatus of the present invention in a first embodiment;
FIG. 2 is a schematic diagram of the operation of a water heating apparatus of the present invention in a second embodiment;
fig. 3 is an enlarged schematic view of a vent device in the hot water apparatus shown in fig. 1, in which the internal construction of an automatic vent valve of the vent device is further illustrated.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
The exhaust device of the invention is mainly used for exhausting gas in a water inlet pipeline of hot water equipment or gas mixed in inlet water so as to prevent the heating device of the hot water equipment from being dried. The exhaust device can be suitable for gas water heating equipment and water storage type electric water heaters, and is particularly suitable for instant electric water heaters. Therefore, the exhaust device of the present invention will be described in detail below by taking an instant electric water heater as an example.
The water heating apparatus 100 according to the first embodiment as shown in fig. 1 includes a housing 10, a heating device 13 accommodated in the housing, a water inlet pipe 11 and a water outlet pipe 12 connected to the heating device and partially extended out of the housing, respectively, a water flow sensor 14 disposed in the water inlet pipe 11, and an air discharging device 2 connected to the water inlet pipe. In this embodiment, the heating device 13 is an instant heater, which includes a heat insulating housing 131 and a resistance wire 132 disposed within the heat insulating housing. The heat-insulating cover 131 may be made of nylon (PA66) and 30% glass fiber, and the resistance wire 132 may be made of nickel-cadmium alloy. The water flow sensor 14 may include a rotor assembly with a magnet and a hall element that is brought into rotation when a water flow (and possibly also an air flow) passes through the sensor 14, thereby measuring the magnetic physical quantity using the hall effect of the hall element. The control unit (not shown) of the apparatus senses the water flow through the hall element and controls the heating device 13 to start operating. In this embodiment, when the water flow reaches a certain starting value, for example, 2.5 liters per minute, the heating device 13 is controlled to start working, so as to avoid the situation that the heating device is dry-burned or overheated due to the fact that the water flow is insufficient or a small amount of gas passes through and the heating device is triggered by mistake.
In the present embodiment, the exhaust device 2 is provided inside the housing 10 and upstream of the water flow sensor 14. Referring to fig. 3, the exhaust apparatus 2 has a housing 21, and the housing 21 defines a gas-liquid separation chamber 210 therein in a vertical direction. A portion of the water inlet pipe 11 extends vertically upward from the bottom of the housing 21 into the gas-liquid separation chamber 210 to form a water inlet passage 22, and the water inlet passage 22 defines a water inlet 221 at the top thereof. A drain hole 231 is defined at a lower position of the housing 21, and a drain passage 23 is communicated with the gas-liquid separation chamber 210 through the drain hole 231, the drain passage 23 constituting a part of the water inlet line 11. Since the water inlet 221 is disposed higher than the water outlet 231 in the vertical direction, since the density of gas is generally lower than that of water, if gas is contained in the water introduced from the water inlet 221, the gas naturally runs upward, and the water falls down to the water outlet 231 to be discharged.
An exhaust port communicates with the gas-liquid separation chamber 210 and is disposed vertically higher than the water inlet 221. The vent may be simply an opening provided at the top of the housing 21 to allow the gas to escape. In a preferred embodiment, a baffle 25 may be disposed in the gas-liquid separation chamber 210 between the water inlet 221 and the air outlet to prevent water entering from the water inlet 221 from flowing out of the air outlet at too high a speed, and of course, the baffle 25 has a certain gap with the side wall of the housing 21 for the gas to pass through. In the present embodiment, an automatic exhaust valve 24 is provided at the top of the gas-liquid separation chamber 210, and an exhaust port 240 is formed at the automatic exhaust valve 24. The automatic exhaust valve 24 may include a float 241 located in the gas-liquid separation chamber 210, and a valve rod 242 interlocked with the float 241 to open or close the exhaust port 240. In the present embodiment, the baffle 25 is provided between the water inlet 221 and the automatic exhaust valve 24. When there is no gas or little gas in the pipeline, the float 241 is floated by the contact of water, and the valve rod 242 blocks the exhaust port 240; when gas is contained in the pipeline, the gas is concentrated at the top of the gas-liquid separation chamber 210, so that the buoyancy of the float 241 is reduced or no buoyancy is generated, and the float naturally descends and drives the valve rod 242 to move to open the gas outlet 240, so that the gas can be discharged from the gas outlet 240. As the gas in the gas-liquid separation chamber 210 decreases, the water level rises, forcing the float 241 to float and re-close the gas outlet 240, thereby preventing water from overflowing from the gas outlet 240.
In the preferred embodiment, the venting device 2 further comprises a one-way valve 26 disposed in the drain channel 23, and the one-way valve 26 has a specific opening pressure, such as 0.3 bar. Through the arrangement, if only gas exists in the water inlet pipeline 11, when water flows in, the water flows can push the gas in the pipeline, at the moment, the exhaust port 240 is in an open state, the air pressure in the gas-liquid separation cavity 210 is the same as the outside, and due to the fact that the check valve 26 with the opening pressure is arranged in the drainage channel 23, the gas is not enough to form large pressure at the front end of the check valve 26 and passes through the drainage channel 23 to be in contact with the water flow sensor 14, and the situation that the water flow sensor 14 mistakenly triggers the heating device 13 to work for water flow to further cause dry burning is avoided. Of course, if the check valve 26 is not provided, the flow sensor 14 needs to reach a certain starting value before the heating device 13 is triggered to operate, so that even a small amount of gas contacts the flow sensor, the starting flow rate is not enough. Therefore, the arrangement of the one-way valve avoids the increase of safety caused by the dry burning of the heating device due to the existence of gas in the pipeline.
Fig. 2 shows another embodiment of a hot water appliance 200 of the present invention. In this embodiment, the exhaust device 3 may be connected as a separate accessory to the portion of the inlet line 11 extending out of the housing 10. Since the internal structure and the realized function of the exhaust device 3 are completely the same as those of the exhaust device 2 of the above embodiment, the applicant will not be described herein again.
The water inlet of the exhaust device is lower than the exhaust port but higher than the water outlet, so that gas can escape from water and can be prevented from entering the drainage channel, and the situation that the heating device is dried due to mistaken touch of the water flow sensor is prevented; in addition, in a preferred embodiment, a one-way valve with certain opening pressure is arranged in the drainage channel, so that gas can be further prevented from passing through the drainage channel; in addition, in a preferred embodiment, water spillage from the exhaust port is avoided by providing a baffle between the exhaust port and the water inlet and/or by using an automatic exhaust valve.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. An exhaust apparatus, comprising:
the shell is internally defined with a vertically arranged gas-liquid separation cavity;
the water inlet channel extends into the gas-liquid separation cavity, and a water inlet is formed at the top of the water inlet channel;
a water discharge passage communicated with the gas-liquid separation chamber through a water discharge port, the water inlet being vertically higher than the water discharge port;
the gas outlet is communicated with the gas-liquid separation cavity and is vertically higher than the water inlet; and
the one-way valve is arranged in the drainage channel and has a specific opening pressure.
2. The exhaust apparatus according to claim 1, characterized in that: the top of the gas-liquid separation cavity is provided with an automatic exhaust valve, and the exhaust port is formed on the automatic exhaust valve.
3. The exhaust apparatus according to claim 2, characterized in that: the automatic exhaust valve comprises a floater positioned in the gas-liquid separation cavity and a valve rod which is linked with the floater to open or close the exhaust port.
4. The exhaust apparatus according to claim 1 or 2, characterized in that: the exhaust device also comprises a baffle arranged in the gas-liquid separation cavity and positioned between the water inlet and the exhaust port.
5. A water heating apparatus, characterized in that the apparatus comprises:
a housing;
a heating device disposed within the housing;
the water inlet pipeline and the water outlet pipeline are matched with the heating device and respectively and partially extend out of the shell;
the water flow sensor is arranged in the water inlet pipeline;
an exhaust device as claimed in any preceding claim connected to the water inlet line.
6. The water heating apparatus according to claim 5, wherein: the exhaust is located upstream of the water flow sensor.
7. The water heating apparatus according to claim 5, wherein: the exhaust device is arranged in the shell.
8. The water heating apparatus according to claim 5, wherein: the exhaust device is arranged outside the shell.
9. The water heating apparatus according to claim 5, wherein: the heating device comprises a heat insulation cover and resistance wires arranged in the heat insulation cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196271.1A CN110017605B (en) | 2019-03-05 | 2019-03-05 | Exhaust device and hot water equipment adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196271.1A CN110017605B (en) | 2019-03-05 | 2019-03-05 | Exhaust device and hot water equipment adopting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110017605A CN110017605A (en) | 2019-07-16 |
| CN110017605B true CN110017605B (en) | 2021-02-19 |
Family
ID=67189620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910196271.1A Active CN110017605B (en) | 2019-03-05 | 2019-03-05 | Exhaust device and hot water equipment adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110017605B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529920Y (en) * | 2001-09-10 | 2003-01-08 | 刘东宁 | Automatic exhauster of water system |
| CN102226581A (en) * | 2011-04-15 | 2011-10-26 | 李耀强 | Control method of water heater |
| CN204460730U (en) * | 2015-03-11 | 2015-07-08 | 孙建斌 | A kind of hot water liner device and multifunction electric heater |
| CN204852514U (en) * | 2015-06-09 | 2015-12-09 | 广州威能机电有限公司 | ExhaustIng equIpment |
| CN105202760A (en) * | 2015-09-08 | 2015-12-30 | 中山市恒乐电器有限公司 | Water circulation system for gas water heater |
| CN206280653U (en) * | 2016-12-05 | 2017-06-27 | 上海海陆丰船用阀门有限公司 | A kind of water supply pipline system automatic exhaust device |
| CN206320968U (en) * | 2016-11-07 | 2017-07-11 | 珠海格力电器股份有限公司 | Oil separating device, condenser and refrigerating plant |
| CA2969059A1 (en) * | 2016-06-14 | 2017-12-14 | Regal Beloit America, Inc. | Blower assembly with compensation for vent back pressure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2872195Y (en) * | 2006-01-27 | 2007-02-21 | 韩军 | Running water boiler |
| CN202791334U (en) * | 2012-07-11 | 2013-03-13 | 查特深冷工程系统(常州)有限公司 | Automatic air collecting and exhausting device |
| CN204665663U (en) * | 2015-03-30 | 2015-09-23 | 马鞍山市博浪热能科技有限公司 | A kind of air source hot pump water heater automatic exhaust device |
| EP3555530A4 (en) * | 2016-12-15 | 2020-12-09 | Stevens, Lee Hiram | Fluid loss notification and shutdown for closed loop fluid heat transfer system |
-
2019
- 2019-03-05 CN CN201910196271.1A patent/CN110017605B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529920Y (en) * | 2001-09-10 | 2003-01-08 | 刘东宁 | Automatic exhauster of water system |
| CN102226581A (en) * | 2011-04-15 | 2011-10-26 | 李耀强 | Control method of water heater |
| CN204460730U (en) * | 2015-03-11 | 2015-07-08 | 孙建斌 | A kind of hot water liner device and multifunction electric heater |
| CN204852514U (en) * | 2015-06-09 | 2015-12-09 | 广州威能机电有限公司 | ExhaustIng equIpment |
| CN105202760A (en) * | 2015-09-08 | 2015-12-30 | 中山市恒乐电器有限公司 | Water circulation system for gas water heater |
| CA2969059A1 (en) * | 2016-06-14 | 2017-12-14 | Regal Beloit America, Inc. | Blower assembly with compensation for vent back pressure |
| CN206320968U (en) * | 2016-11-07 | 2017-07-11 | 珠海格力电器股份有限公司 | Oil separating device, condenser and refrigerating plant |
| CN206280653U (en) * | 2016-12-05 | 2017-06-27 | 上海海陆丰船用阀门有限公司 | A kind of water supply pipline system automatic exhaust device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110017605A (en) | 2019-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6516141B1 (en) | Apparatus and method for protecting a heating tank assembly of a hot water dispenser | |
| JP5068897B1 (en) | Hot water boiler for hot water mat | |
| CN210121048U (en) | Cooking utensil capable of recycling steam | |
| CN110017605B (en) | Exhaust device and hot water equipment adopting same | |
| CN105926735A (en) | Drain device for draining water from water tank by aid of pressure difference | |
| ITMI20001817A1 (en) | CENTRIFUGAL WATER COOLED PUMP. | |
| CN109044111B (en) | Electric heater power-on control mechanism of instant heating water dispenser | |
| US6266485B1 (en) | One-piece plastic tank and temperature control system for a hot water dispenser | |
| CN107951398B (en) | Steam valve seat and steam valve and electric rice cooker | |
| CN101225993A (en) | Electric water heater | |
| US6256456B1 (en) | Hot water dispenser with heat dissipation plates for dry-start protection | |
| KR940009069B1 (en) | Hot water heating apparatus | |
| KR20190027030A (en) | Apparatus for heating coolant of vehicle | |
| CN209915724U (en) | Safe and reliable electromagnetic induction heating water dispenser | |
| CN209915735U (en) | Electromagnetic heating water dispenser with water shortage detection function | |
| CN202796730U (en) | Differential pressure switch | |
| CN215305021U (en) | Water boiler | |
| CN112146076A (en) | Steam boiler | |
| CN219045811U (en) | Small kitchen device | |
| CN212673523U (en) | Shell for quick-heating water heater and quick-heating water heater | |
| CN218852468U (en) | Steam exhaust system for water purifier | |
| CN219549749U (en) | Check valve, thermodynamic balance valve and water supply system | |
| CN216897787U (en) | Horizontal water heater | |
| CN217817502U (en) | Condensate water blockage detection device, condensation heat exchanger and gas water heater | |
| CN110345078B (en) | Forced-ventilated pump structure and cleaning machine applying same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |