CN216361151U - Automatic closing device for water leakage of heating system - Google Patents
Automatic closing device for water leakage of heating system Download PDFInfo
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- CN216361151U CN216361151U CN202122832025.6U CN202122832025U CN216361151U CN 216361151 U CN216361151 U CN 216361151U CN 202122832025 U CN202122832025 U CN 202122832025U CN 216361151 U CN216361151 U CN 216361151U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 238000010438 heat treatment Methods 0.000 title claims abstract description 61
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 239000008236 heating water Substances 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 49
- 238000005192 partition Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 4
- 230000001052 transient effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- 239000012528 membrane Substances 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a heating water leakage automatic closing device, which relates to the field of heating water leakage detection and is characterized in that: the automatic heating system comprises an automatic control system, a heating system and an actuating mechanism, wherein the automatic control system is connected with the actuating mechanism; the actuating mechanism comprises an automatic control valve, a water inlet pipe, a check valve and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are respectively connected with the water inlet and the water outlet of the heating system, the automatic control valve is connected to the water inlet pipe, the check valve is connected to the water outlet pipe, and the automatic control valve is connected with the automatic control system. The water with certain pressure is blocked in the pipeline, and the water flow is in the state of stopping, flowing, stopping and flowing, so that the transient static pressure of the pipeline of the heating system is formed. The purpose of intermittent water supply of the heating system and detection of water leakage of the heating system is achieved, energy loss is reduced, and damage caused by water leakage in the heating process is reduced.
Description
Technical Field
The utility model relates to the field of water leakage detection of heating radiators, in particular to an automatic closing device for water leakage of a heating radiator.
Background
During the central heating period in the north in winter every year, most of the central heating periods in the north adopt water heating, namely, the central heating period is heated by heat dissipation of hot water in a heating pipeline. The hot-water heating has very big hidden danger, can take place often in a few user families because of reasons such as heating pipe line corrosion, radiator rupture cause the family to run out water, cause the loss. The water supply characteristics that the heating installation supplied water for detect and leak the difficulty, when nobody was gone out in the family, the heating installation leaks and causes the furniture household electrical appliances of family to damage easily, and the economic loss who causes is great.
The existing pulse valve shutdown control equipment has high energy consumption, and the automatic heating water leakage closing system is a water leakage solution provided for overcoming the problems of difficult detection, poor precision, high price and the like, and ensures the safety of household heating in all weather.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the technical problems, the utility model provides an automatic closing device for the water leakage of the heating, wherein an automatic control valve is added at the inlet of a user heating pipeline, a check valve is added at a heating outlet pipeline, the automatic control valve is connected with a control system, and a switching signal is periodically sent out to periodically switch the valve. During the closing of the automatic control valve, the check valve is automatically closed under the back pressure of the heating water. The water with certain pressure is blocked in the pipeline, and the water flow is in the state of stopping, flowing, stopping and flowing, so that the transient static pressure of the pipeline of the heating system is formed. The water is incompressibility, the pressure response sensitivity is high, and the water leakage of a heating system can be timely found and treated.
The utility model discloses a heating water leakage automatic closing device, which is characterized in that: the automatic heating system comprises an automatic control system, a heating system and an actuating mechanism, wherein the automatic control system is connected with the actuating mechanism; the actuating mechanism comprises an automatic control valve, a water inlet pipe, a check valve and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are respectively connected with the water inlet and the water outlet of the heating system, the automatic control valve is connected to the water inlet pipe, the check valve is connected to the water outlet pipe, and the automatic control valve is connected with the automatic control system.
Furthermore, the automatic control valve comprises a first electromagnet, a second electromagnet, a first electromagnetic sleeve, a second electromagnetic sleeve, a first iron core, a second iron core and a valve body, wherein the first electromagnetic sleeve and the second electromagnetic sleeve are fixed on two sides of the valve body in a mirror image manner, a first magnet channel and a second magnet channel are respectively arranged in the first electromagnetic sleeve and the second electromagnetic sleeve, the first electromagnet and the second electromagnet are respectively fixed on the first electromagnetic sleeve and the second electromagnetic sleeve, the first iron core and the second iron core are respectively in sliding connection with the first magnet channel and the second magnet channel, the inner diameters of the first iron core and the second iron core are equivalent, and a connecting rod is connected between the first iron core and the second iron core;
a water flow loop is arranged in the valve body, the water flow loop is opened or stopped by the left and right movement of the first iron core and the second iron core, the first electromagnet and the second electromagnet are alternately electrified to realize the left and right movement of the first iron core and the second iron core, and the automatic control valve is controlled to be opened or closed.
Furthermore, a water flow pipeline is connected to the valve body, a control valve water inlet and a control valve water outlet are respectively formed in two ends of the water flow pipeline, and the control valve water inlet and the control valve water outlet are respectively connected to the front side and the rear side of the water inlet direction of the water inlet pipe; a partition plate is arranged in the water flow pipeline, the partition plate is arranged at the joint of the water flow pipeline and the valve body, and a water flow port is formed at the joint of the water flow pipeline and the valve body;
a pressure spring mounting cavity is formed in the valve body at the joint of the valve body and the water flow pipeline, the pressure spring mounting cavity is aligned with the axis of the water flow through hole, a diaphragm is arranged between the pressure spring mounting cavity and the water flow pipeline, and a diaphragm guide hole is formed in the diaphragm; a pressure spring is arranged between the diaphragm and the cavity wall of the pressure spring mounting cavity, and the diaphragm has pressure pressing to the partition plate through the elasticity of the pressure spring;
the water flow loop comprises a first flow guide hole and a second flow guide hole, a third flow guide hole is formed in the water flow pipeline, two ends of the first flow guide hole are respectively communicated with the first magnet channel and the pressure spring installation cavity, and two ends of the second flow guide hole are respectively communicated with the second magnet channel and the third flow guide hole.
Furthermore, a second water flow channel is arranged between the first flow guide hole and the second flow guide hole, the connecting rod penetrates through the second water flow channel, the diameter of the connecting rod is smaller than the aperture of the second water flow channel, and the first iron core and the second iron core are respectively arranged on two sides of the second water flow channel.
Furthermore, the partition plate and the pressure spring are eccentrically arranged, and the partition plate is arranged in a water flow pipeline on one side of the water inlet of the control valve.
Furthermore, the membrane diversion hole is eccentrically arranged on one side of the water outlet of the water flow pipeline control valve, and a sealing plate is arranged on the valve body at the outlet end of the membrane diversion hole and used for sealing off water flow on one side of the pressure spring in the membrane when the automatic control valve is closed.
Furthermore, a first water flow channel and a sensor detection cavity are formed in a valve body at the upper end of the second magnet channel, and the sensor detection cavity is communicated with the second magnet channel through the first water flow channel; and a pressure sensor is arranged in the sensor detection cavity and is connected with the automatic control system.
Furthermore, the automatic control system is provided with a water leakage alarm device.
Compared with the prior art, the utility model has the beneficial effects that:
the automatic control system computer program is arranged, the automatic control valve controls the heating water flow to enter and exit the heating system, the purpose of intermittent water supply of the heating system is achieved, energy loss is reduced, the control system plays a role in monitoring the heating system, and harm caused by water leakage in the heating process is reduced.
Compared with the prior electromagnetic valve which is always electrified to keep the on-off and the closing of the electromagnetic valve, the electromagnet on two sides is arranged to automatically control the periodic on-off of the automatic control valve, the electromagnet is used for working for a short time, the purposes that the original pulse electromagnetic valve needs to be kept in electric power and the switch intermediate state is kept without being electrified are changed, the energy consumption is reduced, and the purpose of saving energy is realized.
The automatic control valve is closed to form transient static pressure in the heating system, and a pressure sensor is arranged in the automatic control valve and used for monitoring the pressure value of the static pressure in the heating system so as to detect whether the water leakage of the heating system occurs.
The automatic control system is arranged to achieve the purpose of monitoring, and can upload signals to inform a user so as to reduce economic loss caused by water leakage.
Drawings
FIG. 1 is a schematic structural diagram of an automatic shutoff device for a heating system in water leakage according to the present invention;
FIG. 2 is a schematic diagram of the construction of the automatic control valve of the present invention;
FIG. 3 is an enlarged view of portion I of FIG. 2 in accordance with the present invention;
fig. 4 is a schematic diagram of the periodic shut-down of water flow in the heating system of the present invention.
FIG. 5 is a state diagram of the automatic control valve of the present invention in a closed state;
fig. 6 is a state diagram of the automatic control valve of the present invention in an open state.
In the figure: the system comprises a control system 1, an automatic control valve 2, a water inlet pipe 3, a water inlet of a control valve 4, a water outlet of a control valve 5, a water outlet pipe 6, a check valve 7, a heating system 8 and a pressure sensor 9;
201 sensor wire, 202 valve body, 203 first electro-magnet, 204 connecting rod, 205 first electro-magnet cover, 206 first magnet channel, 207 first iron core, 208 first water conservancy diversion hole, 209 pressure spring installation cavity, 210 sensor detection chamber, 211 magnet power cord, 212 gland, 213 second electro-magnet, 214 second magnet channel, 215 second electro-magnet cover, 216 second iron core, 217 flow control port, 218 second water conservancy diversion hole, 219 water flow pipeline, 220 pressure spring, 221 baffle, 222 diaphragm, 223 diaphragm water conservancy diversion hole, 224 third water conservancy diversion hole, 225 first water flow channel, 226 second water flow channel.
Detailed Description
The utility model is further described with reference to the following figures and examples.
As shown in fig. 1, a schematic structural diagram of the automatic closing device for heating water leakage of the present invention is provided, which includes an automatic control system 1, a heating system 8 and an execution mechanism, wherein the automatic control system 1 is connected with the execution mechanism. The actuating mechanism comprises an automatic control valve 2, an inlet pipe 3, a check valve 7 and an outlet pipe 6, the inlet pipe 3 and the outlet pipe 6 are respectively connected with a water inlet and a water outlet of a heating system 8, the automatic control valve 2 is connected to the inlet pipe 3, the check valve 7 is connected to the outlet pipe 6, when the automatic control valve 2 is closed, water flow stops flowing, and due to the pressure backup effect of water return in the outlet pipe 6, the check valve 7 is automatically closed, static water pressure is formed in the heating system 8, and the water leakage condition of the heating system 8 is detected within the closed time period of the automatic control valve 2. The automatic control valve 2 is connected with the automatic control system 1, and the automatic control system 1 controls the opening or closing of the automatic control valve 2 so as to realize intermittent water supply of the heating system.
As shown in fig. 2 and fig. 3, a schematic structural diagram of the automatic control valve of the present invention is shown, the automatic control valve shown includes a first electromagnet 203, a second electromagnet 213, a first electromagnetic sleeve 205, a second electromagnetic sleeve 215, a first iron core 207, a second iron core 216, and a valve body 202, the first electromagnetic sleeve 205 and the second electromagnetic sleeve 215 are fixed on two sides of the valve body 202 in a mirror image manner, a first magnet passage 206 and a second magnet passage 214 are respectively formed in the first electromagnetic sleeve 205 and the second electromagnetic sleeve 215, the first electromagnet 203 and the second electromagnet 213 are respectively fixed on the first electromagnetic sleeve 205 and the second electromagnetic sleeve 215, the first iron core 207 and the second iron core 216 are respectively connected with the first magnet passage 206 and the second magnet passage 214 in a sliding manner, and the inner diameters are equivalent, the connecting rod 204 is connected between the first iron core 207 and the second iron core 216, and the first iron core 207 and the second iron core 216 can move simultaneously in the same direction by alternately electrifying the first electromagnet 203 and the second electromagnet 213 on one side through the connecting rod 204. A water flow loop is formed in the valve body 202, and the water flow loop is opened or closed by the left and right movement of the first iron core 207 and the second iron core 216, so as to control the opening or closing of the automatic control valve 2.
The valve body 202 is connected with a water flow pipeline 219, two ends of the water flow pipeline 219 are respectively provided with a control valve water inlet 4 and a control valve water outlet 5, and the control valve water inlet 4 and the control valve water outlet 5 are respectively connected to the front side and the rear side of the water inlet direction of the water inlet pipe 3. A partition 221 is arranged in the water flow pipeline 219, the partition 221 is arranged at the joint of the water flow pipeline 219 and the valve body 202, and a water flow port is formed at the joint of the water flow pipeline 219 and the valve body 202.
A pressure spring mounting cavity 209 is formed in the valve body 202 at the joint of the valve body 202 and the water flow pipeline 219, the pressure spring mounting cavity 209 is aligned with the axis of the water flow through opening, a diaphragm 222 is arranged between the pressure spring mounting cavity 209 and the water flow pipeline 219, and a diaphragm guide hole 223 is formed in the diaphragm 222. A pressure spring 220 is arranged between the diaphragm 222 and the wall of the pressure spring installation cavity 209, and the diaphragm 222 has a pressure to press the partition 221 by the elastic force of the pressure spring 220.
The water flow loop comprises a first flow guide hole 208 and a second flow guide hole 218, a third flow guide hole 224 is formed in the water flow pipeline 219, two ends of the first flow guide hole 208 are respectively communicated with the first magnet channel 206 and the pressure spring installation cavity 209, and two ends of the second flow guide hole 218 are respectively communicated with the second magnet channel 214 and the third flow guide hole 224.
A second water flow channel 226 is disposed between the first diversion hole 208 and the second diversion hole 218, the connecting rod 204 passes through the second water flow channel 226 and has a diameter smaller than the diameter of the second water flow channel 226, and the first iron core 207 and the second iron core 216 are disposed on two sides of the second water flow channel 226 respectively. When the first iron core 207 and the second iron core 216 slide rightwards to the rightmost side of the first magnet passage 206, the second water passage 226 is blocked, the water flow is stopped, and the automatic control valve 2 is closed. When the first plunger 207 and the second plunger 216 slide to the left and reach a predetermined position, the second water passage 226 is opened, the water flows, and the automatic control valve 2 is opened.
A first water flow channel 225 and a sensor detection cavity 210 are formed in the valve body 202 at the upper end of the second magnet channel 214, and the sensor detection cavity 210 is communicated with the second magnet channel 214 through the first water flow channel 225. The sensor detection cavity 210 is internally provided with a pressure sensor 9, and the pressure sensor 9 is connected with the automatic control system 1, so that whether the water pressure condition in the heating system 8 is within a normal range value or not can be monitored, and when the condition that the fluctuation pressure is reduced occurs, an alarm can be sent out through the control system in time. When the automatic control valve 2 is closed, the sensor monitoring cavity 210 is communicated with the interior of the heating system 8 through the first water flow channel 225 and the right magnet channel 214, and the pressure sensor 9 monitors the static water pressure in the heating system 8 when the automatic control valve 2 is closed.
The partition 221 and the pressure spring 220 are eccentrically arranged, and the partition 221 is arranged in a water flow pipeline on one side of the water inlet 4 of the control valve. The partition 221 is disposed at the left side of the vertical edge of the pressure spring 220, so as to facilitate the inflow of water when the automatic control valve 2 is opened.
The membrane diversion hole 223 is eccentrically arranged on one side of the water outlet 5 of the control valve of the water flow pipeline 219, and a closing plate is arranged on the valve body 202 at the outlet end of the membrane diversion hole 223 and used for closing off the water flow on one side of the pressure spring 220 in the membrane 202 when the automatic control valve 2 is closed.
The valve body 202 on the side of the second guiding hole 218 is provided with a flow adjusting port 217, and is sealed by a bolt for adjusting the flow of the automatic control valve 2, so as to adjust the opening speed of the automatic control valve 2.
A sensor wire 201 is connected between the pressure sensor 9 and the control system 1.
A magnet power supply line 211 is connected between the first electromagnet 203 and the second electromagnet 213 and the control system 1.
Referring to fig. 4, a schematic diagram of the periodic closing and opening of the water flow of the heating system of the present invention is shown, and referring to fig. 5 and fig. 6, respectively, the state diagrams of the automatic control valve of the present invention when it is closed and opened are shown, when the automatic control valve 2 is opened, the first electromagnet 203 is energized, and when the second electromagnet 213 is de-energized, the first iron core 207 moves to the left by the attraction force, the second iron core 213 moves to the left by the connecting rod 204, the first guiding hole 208 and the left magnet channel 206 are communicated with the right magnet channel 214 and the second guiding hole 218 through the second water flow channel 226, and the second guiding hole 218 is communicated with the water flow pipe 219 on the adjacent side of the heating system 8 through the third guiding hole 224. When water flows into the water inlet, the water flow of the diaphragm guide hole 223 is smaller than that of incoming water, the incoming water flow generates pressure on the diaphragm 222, the pressure of the incoming water on the diaphragm 222 is larger than the elastic force of the pressure spring 220, the diaphragm 222 moves upwards, and the main water flow channel is opened.
When the automatic control valve 2 is closed, the first electromagnet 203 is powered off, when the second electromagnet 213 is powered on, the second iron core 213 is attracted by suction and moves rightwards, the first iron core 207 is driven by the connecting rod 204 to move rightwards, the first iron core 207 blocks the second water flow channel 226, water cannot pass through the second water flow channel 226, the diaphragm 222 is pushed downwards to the partition plate 221 by the elasticity of the pressure spring 220, water cannot pass through, and the automatic control valve 2 is closed.
Automatic control system 1 is provided with the alarm device that leaks, and the alarm device that leaks uploads the computer and sends out the police dispatch newspaper, also can directly be connected with the cell-phone, and when nobody was in at home, realized the heating system 1 operational aspect in real time supervision family, when taking place to leak, in time sent out the police dispatch newspaper to avoid the family to soak and cause loss of property.
The control system 1 of the utility model contains an expansion interface, which is used for uploading the state of the automatic control valve 2 to a heating power company, when the control system 1 gives an alarm, the water leakage of a heating system is explained, the personnel of the heating power company is informed to check in time, and the private water discharge of a user is avoided.
Therefore, when the water leakage of the heating system 8 is detected, if the heating system 8 has no water leakage, the control system 1 controls the executing mechanism to be intermittently opened and closed, so that intermittent water supply heating is realized, water attack damage to a water supply pipeline is reduced, meanwhile, the energy-saving and emission-reducing effects are obvious, and the environmental protection requirements are met. If the heating system 8 leaks water, the automatic control valve 2 is closed, and the alarm device gives an alarm to maintain in time.
Claims (8)
1. The utility model provides a heating installation self-closing device that leaks which characterized in that: the automatic heating system comprises an automatic control system (1), a heating system (8) and an execution mechanism, wherein the automatic control system is connected with the execution mechanism; the actuating mechanism comprises an automatic control valve (2), a water inlet pipe (3), a check valve (7) and a water outlet pipe (6), wherein the water inlet pipe and the water outlet pipe are respectively connected with a water inlet and a water outlet of the heating system, the automatic control valve is connected to the water inlet pipe, the check valve is connected to the water outlet pipe, and the automatic control valve is connected with the automatic control system;
two electromagnets of two mirror images are arranged at two sides of the automatic control valve, and a switching signal is sent out periodically to switch the valve periodically.
2. A heating water leakage automatic closing device according to claim 1, characterized in that: the automatic control valve comprises a first electromagnet (203), a second electromagnet (213), a first electromagnetic sleeve (205), a second electromagnetic sleeve (215), a first iron core (207), a second iron core (216) and a valve body (202), wherein the first electromagnetic sleeve and the second electromagnetic sleeve are fixed on two sides of the valve body in a mirror image mode, a first magnet channel (206) and a second magnet channel (214) are respectively formed in the first electromagnetic sleeve and the second electromagnetic sleeve, the first electromagnet and the second electromagnet are respectively fixed on the first electromagnetic sleeve and the second electromagnetic sleeve, the first iron core and the second iron core are respectively in sliding connection with the first magnet channel and the second magnet channel, the inner diameters of the first iron core and the second iron core are equal, and a connecting rod (204) is connected between the first iron core and the second iron core;
a water flow loop is arranged in the valve body, the water flow loop is opened or stopped by the left and right movement of the first iron core and the second iron core, the first electromagnet and the second electromagnet are alternately electrified to realize the left and right movement of the first iron core and the second iron core, and the automatic control valve is controlled to be opened or closed.
3. A heating water leakage automatic closing device according to claim 2, characterized in that: the valve body is connected with a water flow pipeline (219), two ends of the water flow pipeline are respectively provided with a control valve water inlet (4) and a control valve water outlet (5), and the control valve water inlet and the control valve water outlet are respectively connected to the front side and the rear side of the water inlet direction of the water inlet pipe; a partition plate (221) is arranged in the water flow pipeline, the partition plate is arranged at the joint of the water flow pipeline and the valve body, and a water flow port is formed at the joint of the water flow pipeline and the valve body;
a pressure spring mounting cavity (209) is formed in the valve body at the joint of the valve body and the water flow pipeline, the pressure spring mounting cavity is aligned with the axis of the water flow through hole, a diaphragm (222) is arranged between the pressure spring mounting cavity and the water flow pipeline, and a diaphragm guide hole (223) is formed in the diaphragm; a pressure spring (220) is arranged between the diaphragm and the cavity wall of the pressure spring mounting cavity, and the diaphragm has pressure pressing to the partition plate through the elasticity of the pressure spring;
the water flow loop comprises a first flow guide hole (208) and a second flow guide hole (218), a third flow guide hole (224) is formed in the water flow pipeline, two ends of the first flow guide hole are respectively communicated with the first magnet channel and the pressure spring installation cavity, and two ends of the second flow guide hole are respectively communicated with the second magnet channel and the third flow guide hole.
4. A heating water leakage automatic closing device according to claim 3, characterized in that: the connecting rod passes through the second water flow channel and the diameter of the connecting rod is smaller than the aperture of the second water flow channel, and the first iron core and the second iron core are respectively arranged on two sides of the second water flow channel.
5. A heating water leakage automatic closing device according to claim 3, characterized in that: the baffle and the pressure spring are eccentrically arranged, and the baffle is arranged in the water flow pipeline on one side of the water inlet of the control valve.
6. A heating water leakage automatic closing device according to claim 3, characterized in that: the diaphragm flow guide hole is eccentrically arranged on one side of the water outlet of the water flow pipeline control valve, and a sealing plate is arranged on a valve body at the outlet end of the diaphragm flow guide hole and used for sealing water flow on one side of a pressure spring in the diaphragm when the automatic control valve is closed.
7. A heating water leakage automatic closing device according to claim 2, characterized in that: a first water flow channel (225) and a sensor detection cavity (210) are formed in the valve body at the upper end of the second magnet channel, and the sensor detection cavity is communicated with the second magnet channel through the first water flow channel; and a pressure sensor (9) is arranged in the sensor detection cavity and is connected with the automatic control system.
8. A heating water leakage automatic closing device according to claim 1 or claim 7, characterized in that: the automatic control system is provided with a water leakage alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122832025.6U CN216361151U (en) | 2021-11-18 | 2021-11-18 | Automatic closing device for water leakage of heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122832025.6U CN216361151U (en) | 2021-11-18 | 2021-11-18 | Automatic closing device for water leakage of heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216361151U true CN216361151U (en) | 2022-04-22 |
Family
ID=81190399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122832025.6U Active CN216361151U (en) | 2021-11-18 | 2021-11-18 | Automatic closing device for water leakage of heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216361151U (en) |
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2021
- 2021-11-18 CN CN202122832025.6U patent/CN216361151U/en active Active
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