CN212205092U - Antifreezing gas water heater - Google Patents
Antifreezing gas water heater Download PDFInfo
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- CN212205092U CN212205092U CN202020265645.9U CN202020265645U CN212205092U CN 212205092 U CN212205092 U CN 212205092U CN 202020265645 U CN202020265645 U CN 202020265645U CN 212205092 U CN212205092 U CN 212205092U
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Abstract
The utility model relates to an antifreezing gas heater, including heat exchanger, inlet tube, outlet pipe, first temperature-sensing valve and second temperature-sensing valve, inlet tube and outlet pipe are connected respectively to heat exchanger, and inlet tube and outlet pipe are connected respectively to two temperature-sensing valves, its characterized in that still includes the control panel, is located the normal close type solenoid valve on the inlet tube, is located the one-way gulp valve on the outlet pipe, connects the drain pipe of two temperature-sensing valves respectively and responds to the rivers induction system of the intraductal rivers of drain. When the gas water heater is in an electrified state, the water flow normally-closed electromagnetic valve flows into the heat exchanger; once the room temperature is reduced to a certain value, the two temperature control valves are opened to discharge water in the heat exchanger through the drain pipe, the water flow sensing device timely gives water flow sensing information to the control board, the normally closed electromagnetic valve is closed by the control board, and water flow is prevented from entering the water inlet pipe in a low-temperature environment, so that the risk of freezing the water inlet pipe is avoided.
Description
Technical Field
The utility model relates to a gas heater field especially relates to an antifreezing gas heater.
Background
Gas water heaters are now widely used in the daily lives of users. By installing the gas water heater, the hot water or warm water requirement during daily washing can be met, and the bathing requirement of a user can also be met.
When the indoor temperature is lower, because the gas heater is filled with water, the water of the gas heater is easy to freeze due to the indoor low temperature, so that the normal water supply of the gas heater is influenced, and even the gas heater can be frozen. In order to meet the anti-freezing requirement of the gas water heater, an electric heating device and an electric control system for monitoring the temperature are usually additionally arranged on the pipeline wall of the gas water heater, so that the electric heating device is driven to start by the electric control system according to the monitored temperature, and the heating and anti-freezing effects are achieved.
Chinese utility model patent CN209801758U discloses a gas heater prevents frostbite, including heat exchanger, inlet tube and outlet pipe, heat exchanger respectively with inlet tube and play water piping connection, outside cold water enters into heat exchanger through the inlet tube and heats the back, warp the outlet pipe is toward flowing outward, through be provided with first temperature-sensing valve and second temperature-sensing valve on heat exchanger's inlet tube and outlet pipe respectively to be used for opening or closing corresponding pipeline according to intraductal temperature and discharge toward outward with the surplus water of decision whether with inlet tube, outlet pipe and heat exchanger in, its surplus water in automatic evacuation gas heater and the pipeline fast, avoid the water pipe frost crack in order to reach frostproofing purpose. Specifically, when the heat exchanger is used for heating, the first temperature control valve and the second temperature control valve sense the water temperature in the pipe, when the water temperature flowing into the first temperature control valve and the water temperature flowing into the second temperature control valve are respectively higher than a first reversing temperature and a second reversing temperature, the first temperature control valve opens the first water inlet valve port and closes the first water discharge valve port, and then the channel between the first water inlet valve port and the first water outlet valve port is switched on to supply water in the heat exchanger and fill the pressure water storage tank and the heat exchanger with water, meanwhile, the second temperature control valve opens the second water outlet valve port and closes the second water discharge valve port, and then the channel between the second water inlet valve port and the second water outlet valve port is switched on to enable external cold water to enter the heat exchanger through the water inlet pipe for heating and then to flow out through the water outlet pipe.
The utility model discloses an anti-freezing gas heater in patent CN209801758U also has some problems: this gas heater is in electrified use, in case indoor temperature reduces to freezing point after, if the user does not in time close the water inlet of inlet tube, rivers still can flow into in the inlet tube according to normal conditions, and the low temperature environment will lead to the fact the inlet tube to freeze, freezes heat exchanger even.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an antifreezing gas heater is provided to above-mentioned prior art.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: an antifreeze gas water heater comprising:
a heat exchanger having a water inlet end and a water outlet end;
the water inlet pipe is connected with the water inlet end of the heat exchanger;
the water outlet pipe is connected with the water outlet end of the heat exchanger;
the first temperature control valve is provided with a water inlet end and a water discharge end, and the water inlet end of the first temperature control valve is connected with a water inlet pipe;
the second temperature control valve is provided with a water inlet end and a water outlet end, and the water inlet end of the second temperature control valve is connected with the water outlet pipe;
it is characterized by also comprising:
a control panel;
the normally closed electromagnetic valve is connected with the control panel, the normally closed electromagnetic valve is arranged on the water inlet pipe, and the water inlet end of the first temperature control valve is positioned between the normally closed electromagnetic valve and the water outlet end of the heat exchanger;
the one-way air compensating valve is arranged on the water outlet pipe and is positioned between the second temperature control valve and the water outlet end of the heat exchanger;
the drain pipe is respectively connected with the drain end of the first temperature control valve and the drain end of the second temperature control valve;
and the water flow sensing device is connected with the control panel and is arranged on the drain pipe.
In order to quickly discharge the residual water in the water outlet pipe so as to avoid excessive residual water, in the anti-freezing gas water heater, the setting position of the one-way air compensating valve is higher than that of the heat exchanger. Therefore, the one-way air supplement valve is used for supplementing air into the water outlet pipe, so that the water in the water outlet pipe can be quickly discharged in the shortest possible time, and the aim of preventing freezing is fulfilled.
Of course, the anti-freezing gas water heater can also be provided with a prompting device for prompting anti-freezing information, and the prompting device is connected with the control board. For example, the prompting device can be a display screen capable of displaying the anti-freeze reminding information.
Compared with the prior art, the utility model has the advantages of:
firstly, when the gas water heater is in an electrified state, a water flow normally closed electromagnetic valve normally flows into a heat exchanger; once the room temperature is reduced to a certain value, the two temperature control valves are opened again to discharge water in the heat exchanger through the water discharge pipe, the water flow sensing device can timely send water flow sensing information to the control panel, the normally closed electromagnetic valve is closed by the control panel to prevent water flow from continuously entering the water inlet pipe in a low-temperature environment, so that the freezing risk of the water inlet pipe is avoided, and the one-way air supply valve can accelerate the discharge of residual water in the water outlet pipeline again to prevent the water outlet pipe from freezing;
secondly, when the gas water heater is in a power-off state due to artificial power failure or accidental power failure, the normally closed electromagnetic valve can be automatically in a closed state, water flow is prevented from entering the water inlet pipe, the water inlet pipe is frozen at a low temperature, and once the indoor temperature of the gas water heater is reduced to a certain value, the two temperature control valves of the gas water heater can be automatically opened, so that water of the heat exchanger is discharged through the water outlet pipe and the water discharge pipe, and along with the gradual disappearance of water pressure in the water outlet pipe, the one-way air supply valve can also supply air to the water outlet pipe, the discharge of residual stored water in the water outlet pipe is accelerated, and the freezing of the water outlet pipe is. Therefore, the gas water heater not only realizes the anti-freezing effect in the electrified state, but also can realize the anti-freezing effect in the power-off state.
And even if the temperature control valve of the gas water heater breaks down, the normally closed electromagnetic valve on the water inlet pipe can still normally work, so that external water flow can be prevented from continuously entering the water inlet pipe, and the freezing risk of the water inlet pipeline and the heat exchanger is further avoided.
Drawings
Fig. 1 is a schematic diagram of a gas water heater with freeze protection in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the embodiment provides an anti-freezing gas water heater, including:
a heat exchanger 1 having a water inlet end and a water outlet end;
the water inlet pipe 2 is connected with the water inlet end of the heat exchanger 1;
the water outlet pipe 3 is connected with the water outlet end of the heat exchanger 1;
the first temperature control valve 4 is provided with a water inlet end and a water discharge end, and the water inlet end of the first temperature control valve is connected with the water inlet pipe 2;
the second temperature control valve 5 is provided with a water inlet end and a water outlet end, and the water inlet end of the second temperature control valve is connected with the water outlet pipe 3; it should be noted that, the first temperature control valve 4 and the second temperature control valve 5 here belong to the conventional technology in the field, and the principle of the temperature control valves is that the temperature control valves have a reversing temperature, when the temperature of water flowing into the temperature control valves is higher than the reversing temperature, the channel inside the temperature control valves for connecting the water inlet valve port and the water outlet valve port is conducted, and the channel inside the temperature control valves for connecting the water outlet valve port and the water outlet valve port is cut off; when the temperature of water flowing into the temperature control valve is lower than the reversing temperature, a channel in the temperature control valve for connecting the drainage valve port and the water outlet valve port is communicated, and a channel in the temperature control valve for connecting the water inlet valve port and the water outlet valve port is cut off; the specific situation can be seen in the introduction description of the utility model CN 209801758U;
a control panel 6;
the normally closed electromagnetic valve 7 is connected with the control board 6, the normally closed electromagnetic valve 7 is arranged on the water inlet pipe 2, and the water inlet end of the first temperature control valve 4 is positioned between the normally closed electromagnetic valve 7 and the water outlet end of the heat exchanger 1;
the one-way air compensating valve 8 is arranged on the water outlet pipe 3 and is positioned between the second temperature control valve 5 and the water outlet end of the heat exchanger 1; in the embodiment, the one-way air compensating valve 8 is arranged at a position higher than that of the heat exchanger 1;
the drain pipe 9 is respectively connected with the drain end of the first temperature control valve 4 and the drain end of the second temperature control valve 5;
the water flow sensing device 10 is connected with the control panel 6, and the water flow sensing device 10 is arranged on the drain pipe 9;
and the prompting device 11 is connected with the control board 6 and is used for prompting the anti-freezing information according to the instruction of the control board. The prompting device 11 here may be a display screen.
The anti-freezing principle of the gas water heater in this embodiment is explained below with reference to fig. 1:
when the gas water heater is in a charged state, the normally closed electromagnetic valve 7 on the water inlet pipe 2 is in an open state, the water inlet A is unblocked, and the gas water heater is in a normal standby state; if the ambient temperature of the gas water heater drops, the temperature of the gas water heater drops along with the drop, when the temperature drops to the opening values (namely, the reversing temperature is about 4 ℃) of the first temperature control valve 4 and the second temperature control valve 5, the first temperature control valve 4 and the second temperature control valve 5 are both opened to drain water, and water flow is drained from a water outlet C of a water drainage pipe 9; the water flow sensing device 10 feeds back information of water flow sensed by the drain pipe 9 to the control panel 6, the control panel 6 cuts off the power supply of the normally closed electromagnetic valve 7, the water inlet A is closed, and anti-freezing information is given on the display screen to inform a user; after water is drained, the water pressure in the water outlet pipe 3 disappears, air enters the water outlet pipe 3 from the one-way air compensating valve 8, water drained through the water drain pipe 9 is smoother, the water drainage speed is accelerated, stored water in the water inlet pipe 2 and the water outlet pipe 3 is drained, and pipelines are prevented from being frozen;
when the gas water heater is powered off, the normally closed electromagnetic valve 7 on the water inlet pipe 2 is in a closed state due to power failure, and the water inlet A is closed; if the ambient temperature of the gas water heater drops, the temperature of the gas water heater drops along with the drop, when the temperature drops to the opening values (namely, the reversing temperature is about 4 ℃) of the first temperature control valve 4 and the second temperature control valve 5, the first temperature control valve 4 and the second temperature control valve 5 are both opened to drain water, and water flow is drained from a water outlet C of a water drainage pipe 9; after the drainage is started, the water pressure in the water outlet pipe 3 disappears, air enters the water outlet pipe 3 from the one-way air compensating valve 8, so that water discharged through the water outlet pipe 9 is smoother, the drainage speed is accelerated, and then water stored in the water inlet pipe 2 and the water outlet pipe 3 is emptied to prevent the pipeline from freezing. Therefore, the gas water heater not only realizes the anti-freezing effect in the electrified state, but also can realize the anti-freezing effect in the power-off state.
In addition, even if the temperature control valve of the gas water heater breaks down, the normally closed electromagnetic valve 7 on the water inlet pipe 2 can still work normally, so that external water flow can be prevented from continuously entering the water inlet pipe, and further the freezing risk of a water inlet pipeline and a heat exchanger is avoided.
Claims (4)
1. An antifreeze gas water heater comprising:
a heat exchanger (1) having a water inlet end and a water outlet end;
the water inlet pipe (2) is connected with the water inlet end of the heat exchanger (1);
the water outlet pipe (3) is connected with the water outlet end of the heat exchanger (1);
the first temperature control valve (4) is provided with a water inlet end and a water discharge end, and the water inlet end of the first temperature control valve is connected with the water inlet pipe (2);
the second temperature control valve (5) is provided with a water inlet end and a water outlet end, and the water inlet end of the second temperature control valve is connected with the water outlet pipe (3);
it is characterized by also comprising:
a control panel (6);
the normally closed electromagnetic valve (7) is connected with the control board (6), the normally closed electromagnetic valve (7) is arranged on the water inlet pipe (2), and the water inlet end of the first temperature control valve (4) is positioned between the normally closed electromagnetic valve (7) and the water outlet end of the heat exchanger (1);
the one-way air compensating valve (8) is arranged on the water outlet pipe (3) and is positioned between the second temperature control valve (5) and the water outlet end of the heat exchanger (1);
the drain pipe (9) is respectively connected with the drain end of the first temperature control valve (4) and the drain end of the second temperature control valve (5);
and the water flow sensing device (10) is connected with the control board (6), and the water flow sensing device (10) is arranged on the drain pipe (9).
2. Anti-freeze gas water heater according to claim 1, characterized in that the one-way aeration valve (8) is placed at a higher level than the heat exchanger (1).
3. Anti-freezing gas water heater according to claim 1, characterized in that it further comprises a prompting device (11) for prompting anti-freezing information, the prompting device (11) being connected to the control panel (6).
4. Antifreeze gas water heater according to claim 3, characterized in that the prompting device (11) is a display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020265645.9U CN212205092U (en) | 2020-03-06 | 2020-03-06 | Antifreezing gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020265645.9U CN212205092U (en) | 2020-03-06 | 2020-03-06 | Antifreezing gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212205092U true CN212205092U (en) | 2020-12-22 |
Family
ID=73820256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020265645.9U Active CN212205092U (en) | 2020-03-06 | 2020-03-06 | Antifreezing gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212205092U (en) |
-
2020
- 2020-03-06 CN CN202020265645.9U patent/CN212205092U/en active Active
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