CN108613372B - Pressure-bearing water storage water heater with pressure-bearing water tank protection device - Google Patents
Pressure-bearing water storage water heater with pressure-bearing water tank protection device Download PDFInfo
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- CN108613372B CN108613372B CN201810621978.8A CN201810621978A CN108613372B CN 108613372 B CN108613372 B CN 108613372B CN 201810621978 A CN201810621978 A CN 201810621978A CN 108613372 B CN108613372 B CN 108613372B
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
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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
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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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to the technical field of water heaters, in particular to a pressure-bearing water storage water heater with a pressure-bearing water tank protection device, which comprises a pressure-bearing water tank, a main machine and the pressure-bearing water tank protection device, wherein the pressure-bearing water tank is provided with a main machine port, a water inlet port and a water outlet port, and the main machine is communicated with the main machine port; the pressure-bearing water tank protection device comprises a shell, a bypass switch, an air supplementing switch, a pressure releasing switch and a check switch, wherein the shell is provided with a water inlet flow channel, a water outlet flow channel and an intermediate flow channel, the bypass switch is arranged on the intermediate flow channel, the air supplementing switch and the pressure releasing switch are both arranged on the intermediate flow channel and are communicated with the intermediate flow channel, and the check switch is arranged on the water inlet flow channel. According to the invention, the pressure-bearing water tank is protected by the pressure-bearing water tank protection device, so that the pressure difference between the inside and the outside of the pressure-bearing water tank is balanced, the purposes of constant pressure heating, constant pressure use, backflow prevention and negative pressure protection are achieved, and meanwhile, the functions of safety pressure relief and early warning reminding are also achieved, the fatigue of the pressure-bearing water tank is reduced, and the service life of the pressure-bearing water tank is prolonged.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a pressure-bearing water storage water heater with a pressure-bearing water tank protection device.
Background
Currently, pressure-bearing water storage type water heaters are provided with pressure-bearing water tanks, which are used for storing hot water and as heat exchange equipment. The pressure-bearing water tank is an important part of the water heater, and once the pressure-bearing water tank has a problem, the pressure-bearing water storage type water heater cannot be normally used, and in order to ensure the normal use of the pressure-bearing water storage type water heater, the pressure-bearing water tank of the pressure-bearing water storage type water heater is generally externally connected with a one-way safety valve in the prior art, so that the pressure in the pressure-bearing water tank is prevented from being too high.
In the using process of the pressure-bearing water tank, cold water in the pressure-bearing water tank can be heated, the volume of the water can expand along with the rising of the temperature, the pressure in the pressure-bearing water tank rises along with the rising of the water, the pressure in the pressure-bearing water tank rises to more than 1.0MPa, the service life of the pressure-bearing water tank is seriously influenced, and even the deformation and the expansion of the pressure-bearing water tank are caused, so that a one-way safety valve is required to be arranged when the pressure-bearing water tank is arranged, and the normal use of the pressure-bearing water tank is ensured; the one-way safety valve is used for limiting the pressure in the pressure-bearing water tank, and if the pressure in the pressure-bearing water tank exceeds the rated pressure of the one-way safety valve, the one-way safety valve drains water outwards, so that the pressure in the pressure-bearing water tank is reduced. Meanwhile, the one-way safety valve has a one-way check function, when the water inlet pipe is cut off, the one-way safety valve can prevent hot water in the pressure-bearing water tank from flowing backwards, hot water waste is avoided, negative pressure in the pressure-bearing water tank caused by backflow of the hot water in the pressure-bearing water tank can be prevented, and the liner of the pressure-bearing water tank is flattened due to the negative pressure. However, the unidirectional safety valve has limitation, and cannot fully protect the pressure-bearing water tank, and when water is stopped, the unidirectional safety valve is arranged in the water inlet pipe, so that the unidirectional check function of the unidirectional safety valve can prevent the backflow of hot water in the pressure-bearing water tank; if the user does not know that the water is stopped, the valve on the water outlet pipe is opened, and when the pressure-bearing water tank and the valve have a height difference, water in the water outlet pipe can flow downwards under the action of gravity, and at the moment, negative pressure is formed in the pressure-bearing water tank, so that the pressure-bearing water tank is flattened by atmospheric pressure. When the one-way safety valve works normally, the pressure in the pressure-bearing water tank needs to be released by draining outwards, at the moment, a hose needs to be installed, the draining water is guided into a draining system (or the draining water is guided into a using container for recycling treatment), if the draining water is not guided into the draining system, the draining water can drop on the floor, and the floor is damaged, so that water resource waste is caused. The unidirectional safety valve has a limitation of seriously influencing the service life of the pressure-bearing water tank, the pressure-bearing water tank provided with the unidirectional safety valve can drain water outwards only when the pressure-bearing water tank reaches the rated pressure of the unidirectional safety valve during heating, and the pressure-bearing water tank needs to be communicated with a water inlet pipe during use, so that the pressure in the pressure-bearing water tank suddenly drops to the pressure of the water inlet pipe; in the frequent use process, the pressure-bearing water tank is continuously expanded and contracted, so that the fatigue of the pressure-bearing water tank is increased, and the service life of the pressure-bearing water tank is reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing the pressure-bearing water storage water heater with the pressure-bearing water tank protection device, which has the advantages of compact structure and convenient pipeline arrangement, achieves the purposes of constant-pressure heating, constant-pressure use, backflow prevention and negative pressure protection, simultaneously plays roles of safe pressure relief and early warning reminding, reduces the fatigue of the pressure-bearing water tank, and prolongs the service life of the pressure-bearing water tank.
In order to solve the technical problems, the invention adopts the following technical scheme:
the pressure-bearing water storage water heater with the pressure-bearing water tank protection device comprises a pressure-bearing water tank and the pressure-bearing water tank protection device, wherein the pressure-bearing water tank is provided with a water inlet port and a water outlet port, and the water outlet port is positioned above the water inlet port; the pressure-bearing water tank protection device comprises a shell and a bypass switch, an air supplementing switch, a pressure relieving switch and a check switch which are respectively arranged in the shell, wherein the shell is provided with a water inlet channel, a water outlet channel and an intermediate channel used for communicating the water inlet channel and the water outlet channel, a water outlet of the water inlet channel is communicated with a water inlet port of the pressure-bearing water tank, a water inlet of the water inlet channel is communicated with an external water supply device, a water inlet of the water outlet channel is communicated with a water outlet port of the pressure-bearing water tank, a water outlet of the water outlet channel is communicated with the external water outlet device, the bypass switch is arranged at one end, close to the water outlet channel, of the intermediate channel, the air supplementing switch and the pressure relieving switch are both arranged in the middle of the intermediate channel and used for controlling the communication between the intermediate channel and the external atmosphere, the check switch is arranged at a water outlet of the water inlet channel, the air supplementing switch and the pressure relieving switch are both arranged between the bypass switch and the check switch, the bypass switch is used for regulating and controlling the water body in the water outlet channel to enter the water inlet channel, and the check switch is used for regulating and controlling the water body in the water inlet channel to enter the pressure-bearing water tank.
Further, the water outlet flow passage is provided with a maintenance hole, the bypass switch is exposed in the maintenance hole, a plug is arranged in the maintenance hole, the inner wall of the maintenance hole is provided with a first internal thread, and the plug is provided with a first external thread in threaded connection with the first internal thread.
Further, the middle runner comprises a main runner and an auxiliary runner communicated with the main runner, the auxiliary runner and the main runner are arranged in a crossing mode, the air supplementing switch and the pressure relieving switch are respectively arranged at two ends of the auxiliary runner and are respectively located at two sides of the main runner, two ends of the main runner are respectively communicated with the water outlet runner and the water inlet runner, and the bypass switch is located at one end, close to the water outlet runner, of the main runner.
Further, a water flow switch is arranged in the water outlet flow channel or the water inlet flow channel.
Further, the casing includes upper horizontal portion, well horizontal portion, lower horizontal portion and the vertical portion of being connected with upper horizontal portion and lower horizontal portion respectively, upper horizontal portion, well horizontal portion and lower horizontal portion parallel arrangement each other, the middle part of vertical portion sets up perpendicularly with the middle part of well horizontal portion, the water outlet runner runs through upper horizontal portion, the water inlet runner runs through lower horizontal portion, the main runner runs through vertical portion, the auxiliary runner runs through well horizontal portion.
Further, be provided with the bypass in the sprue, the bypass is kept off the ring and is provided with first flow hole, the bypass switch is including sliding the bypass case that sets up in the sprue, set up the bypass elastic component between bypass case and bypass keep off the ring and be used for contradicting the bypass holding ring of the one end of bypass case, the bypass holding ring is installed in the sprue one end that is close to the water outlet flow way, the bypass holding ring is provided with the second flow hole that is used for with first flow hole intercommunication, and the one end of bypass case is used for shutoff second flow hole.
Further, a fifth internal thread is arranged on the inner wall of the main runner, a fourth external thread in threaded connection with the fifth internal thread is arranged on the bypass positioning ring, and the thread length of the fifth internal thread is larger than that of the fourth external thread.
Further, the bypass baffle ring is further provided with a first guide hole parallel to the first flow hole, and the other end of the bypass valve core is provided with a first guide rod matched with the first guide hole.
Further, be provided with the pressure release and keep off the ring in the auxiliary runner, the pressure release keeps off the ring and is provided with the third flow hole, the pressure release switch is including installing in the pressure release holding ring of the one end that the auxiliary runner kept away from the main runner, sliding the pressure release case that sets up in the auxiliary runner and set up the pressure release elastic component between pressure release case and pressure release holding ring, the pressure release holding ring is provided with the fourth flow hole with the third flow hole intercommunication, the one end of pressure release case is used for shutoff third flow hole.
Further, a sixth internal thread is arranged on the inner wall of the auxiliary flow channel, a fifth external thread in threaded connection with the sixth internal thread is arranged on the pressure relief positioning ring, and the thread length of the sixth internal thread is longer than that of the fifth external thread; the pressure relief positioning ring is also provided with a second guide hole parallel to the fourth flow hole, and the other end of the pressure relief valve core is provided with a second guide rod matched with the second guide hole.
The invention has the beneficial effects that: the pressure-bearing water storage water heater with the pressure-bearing water tank protection device has compact structure and convenient use, protects the pressure-bearing water tank through the pressure-bearing water tank protection device, solves the problems that the pressure of the pressure-bearing water tank suddenly drops during heating and use, fatigue of the pressure-bearing water tank is increased, and the service life of the pressure-bearing water tank is reduced, achieves the purposes of constant-pressure heating and constant-pressure use, solves the problems that the pressure-bearing water tank is crushed by external air due to backflow of hot water and negative pressure generated in the pressure-bearing water tank caused by external water cut-off, the pressure-bearing water tank has the advantages that the pressure difference between the inside and the outside of the pressure-bearing water tank is balanced, the purposes of backflow prevention and negative pressure protection are achieved, meanwhile, the functions of safe pressure relief and early warning reminding are also achieved, the fatigue of the pressure-bearing water tank is greatly reduced, the service life of the pressure-bearing water tank is prolonged, when the pressure of water in the pressure-bearing water tank is discharged, the discharged water can enter a water inlet flow channel to circulate, and the fact that the existing pressure-discharging structure directly discharges hot water into the air is avoided; in addition, be provided with inlet channel, middle runner and play water runner through the casing, concentrate check switch, bypass switch, air supplementing switch and pressure release switch in the casing for pressure-bearing water tank protection device's compact structure, pipeline arrangement are convenient, and occupation space is little, and installation, later stage inspection and maintenance are convenient, and structural stability is strong, and is favorable to standardized use and batch production.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the pressure-bearing water tank protection device of the present invention.
Fig. 3 is a sectional view of the pressurized water tank protecting apparatus of the present invention.
Fig. 4 is a cross-sectional view of the housing of the present invention.
Reference numerals illustrate:
1. a housing; 11. a water inlet flow passage; 111. a third internal thread; 112. a third external thread; 12. a water outlet flow passage;
121. maintaining the hole; 122. a plug; 123. a second internal thread; 13. an intermediate flow passage; 131. a main flow passage;
1311. a bypass baffle ring; 1312. a first flow hole; 1313. a fifth internal thread; 1314. a first guide hole;
132. an auxiliary flow channel; 1321. a pressure relief baffle ring; 1322. a third flow hole; 1323. a sixth internal thread;
14. an upper horizontal portion; 15. a middle horizontal portion; 16. a lower horizontal portion; 17. a vertical portion; 2. a bypass switch;
21. a bypass spool; 211. a first guide bar; 22. a bypass elastic member; 23. a bypass positioning ring; 231. a second flow hole;
232. a fourth external thread; 3. an air supplementing switch; 4. a pressure release switch; 41. a pressure relief positioning ring; 411. a fourth flow hole;
412. a fifth external thread; 413. a second guide hole; 42. a pressure relief valve core; 421. a second guide bar; 43. a pressure relief elastic member;
5. a non-return switch; 6. a water outlet pipe; 7. a water inlet pipe; 8. a water flow switch; 10. a pressure-bearing water tank;
101. a host port; 102. a water inlet port; 103. a water outlet port; 20. a host; 30. a pressure-bearing water tank protection device;
40. a connecting pipe; 50. a filter; 60. a water supply; 70. a water outlet device.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the pressure-bearing water storage water heater with the pressure-bearing water tank protection device provided by the invention comprises a pressure-bearing water tank 10, a host 20 and a pressure-bearing water tank protection device 30, wherein the pressure-bearing water tank 10 is provided with a host port 101, a water inlet port 102 and a water outlet port 103, the water outlet port 103 is positioned above the water inlet port 102, and the host 20 is communicated with the host port 101 of the pressure-bearing water tank 10; the pressure-bearing water tank protection device 30 comprises a shell 1, and a bypass switch 2, an air supplementing switch 3, a pressure relieving switch 4 and a check switch 5 which are respectively arranged in the shell 1, wherein the shell 1 is provided with a water inlet flow channel 11, a water outlet flow channel 12 and an intermediate flow channel 13 which is used for communicating the water inlet flow channel 11 with the water outlet of the water outlet flow channel 12, a water outlet of the water inlet flow channel 11 is communicated with a water inlet port 102 of the pressure-bearing water tank 10, a water inlet of the water inlet flow channel 11 is communicated with an external water supply device 60, a water inlet of the water outlet flow channel 12 is communicated with a water outlet port 103 of the pressure-bearing water tank 10, a water outlet of the water outlet flow channel 12 is communicated with an external water outlet device 70, the bypass switch 2 is arranged at one end, close to the water outlet flow channel 12, of the air supplementing switch 3 and the pressure relieving switch 4 are both arranged in the middle of the intermediate flow channel 13 and used for controlling the communication of the intermediate flow channel 13 with the external atmosphere, the check switch 5 is arranged at the water outlet of the water inlet flow channel 11, the pressure supplementing switch 3 and the pressure relieving switch 4 are both arranged between the bypass switch 2 and the check switch 5, the bypass switch 12 is used for controlling the water outlet of the water inlet flow channel 11, the water inlet 11 is used for controlling the water inlet flow channel 11, and the pressure-bearing water inlet 11 is controlled by the water inlet of the pressure-bearing water tank 10, and the water inlet switch 10, and the water outlet switch is controlled by the water outlet switch 5. Specifically, as shown in fig. 4, the water inlet of the water outlet flow channel 12 is the left end of the water outlet flow channel 12, the water outlet of the water outlet flow channel 12 is the right end of the water outlet flow channel 12, the water inlet of the water inlet flow channel 11 is the right end of the water inlet flow channel 11, the water outlet of the water inlet flow channel 11 is the left end of the water inlet flow channel 11, the water outlet of the pressure-bearing water tank 10 is the hot water port of the pressure-bearing water tank 10, and the water inlet of the pressure-bearing water tank 10 is the cold water port of the pressure-bearing water tank 10; preferably, the main unit 20 is an air energy water heater main unit.
During assembly, the host 20 is communicated with the host port 101 of the pressure-bearing water tank 10, the pressure-bearing water tank protection device 30 is arranged on a water path of the pressure-bearing water tank 10, so that the water outlet of the water inlet flow channel 11 of the shell 1 is communicated with the water inlet port 102 of the pressure-bearing water tank 10, the water inlet of the water inlet flow channel 11 is communicated with the external water supply device 60, the water inlet of the water outlet flow channel 12 of the shell 1 is communicated with the water outlet port 103 of the pressure-bearing water tank 10, and the water outlet of the water outlet flow channel 12 is communicated with the external water supply device 70. When in use, water flow of the external water supply device 60 flows into the pressure-bearing water tank 10 from the water inlet flow channel 11, water flows out of the water outlet flow channel 12 after being heated in the pressure-bearing water tank 10, and finally flows out of the external water outlet device 70 for use.
In actual use, the host 20 can heat the water in the pressure-bearing water tank 10; when the pressure in the pressure-bearing water tank 10 is smaller than the pressure of the external water supply device 60, the pressure of the external water supply device 60 opens the check switch 5, cold water of the external water supply device 60 enters the pressure-bearing water tank 10 through the water inlet flow channel 11 and the check switch 5, when the external water outlet device 70 is closed and the pressure-bearing water tank 10 is filled with water, the pressure in the pressure-bearing water tank 10 is equal to the pressure of the external water supply device 60, the check switch 5 is automatically closed, the unidirectional check function is achieved, and the phenomenon of backflow of hot water in the pressure-bearing water tank 10 is prevented.
When the water in the pressure-bearing water tank 10 is heated, as the non-return switch 5 is arranged in the water inlet flow passage 11, the water in the pressure-bearing water tank 10 can expand along with the rising of the temperature, the pressure in the pressure-bearing water tank 10 also rises along with the rising of the water, when the pressure in the pressure-bearing water tank 10 is higher than the pressure of the external water supply device 60, the bypass switch 2 in the shell 1 is opened by the pressure in the pressure-bearing water tank 10, the hot water in the pressure-bearing water tank 10 enters the water inlet flow passage 11 through the water outlet flow passage 12, the bypass switch 2 and the middle flow passage 13, the pressure in the pressure-bearing water tank 10 is reduced along with the flowing of the hot water into the water inlet flow passage 11, and when the pressure in the pressure-bearing water tank 10 is equal to the pressure of the external water supply device 60, the bypass switch 2 is automatically closed, so that the pressure in the pressure-bearing water tank 10 is always equal to the pressure of the external water supply device 60, or the pressure in the pressure-bearing water tank 10 is slightly higher than the pressure of the external water supply device 60, the purpose of heating the water in the pressure-bearing water tank 10 is achieved, the problem that the pressure in the pressure-bearing water tank 10 is deformed and expanded due to the too high pressure is solved, the pressure is contracted due to the too low, the pressure is relieved, the service life of the pressure-bearing water tank 10 is greatly prolonged.
When hot water is used, the external water outlet 70 is opened, hot water in the pressure-bearing water tank 10 flows out through the water outlet flow channel 12 and the external water outlet 70, the pressure-bearing water tank 10 is communicated with the external atmosphere, so that the pressure in the pressure-bearing water tank 10 is atmospheric pressure, at the moment, the pressure of the external water supply 60 is larger than the pressure in the pressure-bearing water tank 10, the non-return switch 5 is opened by the pressure of the external water supply 60, cold water of the external water supply 60 enters the pressure-bearing water tank 10 through the water inlet flow channel 11 and the non-return switch 5, hot water with high water level in the pressure-bearing water tank 10 is pressed out of the pressure-bearing water tank 10 through the water outlet flow channel 12 and the external water outlet 70, and at the moment, the bypass switch 2 is not opened, and hot water in the water outlet flow channel 12 cannot enter the water inlet flow channel 11 because the pressure in the pressure-bearing water tank 10 is equal to the pressure of the external water supply 60; in this process, the bypass switch 2 serves to balance the pressure in the pressurized water tank 10 with the pressure of the external water supply 60.
When the external water supply device 60 stops water, the external water supply device 60 generates negative pressure, at the moment, the pressure in the pressure-bearing water tank 10 is higher than the external water supply device 60, the bypass switch 2 is opened by the pressure in the pressure-bearing water tank 10, a small part of hot water flows into the water inlet flow channel 11 through the bypass switch 2, the pressure in the pressure-bearing water tank 10 decreases along with the hot water flowing into the water inlet flow channel 11, when the pressure in the pressure-bearing water tank 10 is lower than the rated pressure of the bypass switch 2, the bypass switch 2 is automatically closed, the hot water in the pressure-bearing water tank 10 cannot enter the water inlet flow channel 11 through the water outlet flow channel 12 and the bypass switch 2, at the moment, the middle flow channel 13 also generates negative pressure because the water inlet flow channel 11 and the middle flow channel 13 are communicated with the external water supply device 60, so that the atmospheric pressure is higher than the pressure in the middle flow channel 13, the atmospheric pressure opens the air supply switch 3, the atmospheric pressure enters the middle flow channel 13 through the air supply switch 3, and the atmospheric pressure is equal to the atmospheric pressure, namely the pressure of the water inlet flow channel 11 is equal to the atmospheric pressure, and the atmospheric pressure, when the pressure is lower than the rated pressure of the bypass switch 2, the water flow channel is not equal to the atmospheric pressure, and the service life of the pipeline is not prolonged, and the pipeline is protected. When the external water supply device 60 is shut down and the external water outlet device 70 is opened, the pressure-bearing water tank 10 also generates negative pressure, the air pressure opens the air supplementing switch 3, the air pressure enters the middle flow passage 13 and the water inlet flow passage 11 through the air supplementing switch 3, the pressure in the water inlet flow passage 11 opens the non-return switch 5, the pressure in the water inlet flow passage 11 is equal to the pressure in the pressure-bearing water tank 10, the pressure inside and outside the pressure-bearing water tank 10 is balanced, the pressure-bearing water tank 10 is prevented from being flattened by the air pressure, and the pressure-bearing water tank 10 is protected.
When the pressure of the external water supply device 60 is larger than the rated pressure of the check switch 5, the pressure relief switch 4 is opened by the pressure of the external water supply device 60, and cold water of the external water supply device 60 flows out of the shell 1 through the water inlet flow passage 11, the middle flow passage 13 and the pressure relief switch 4, so that a user is reminded that the pressure in the external water supply device 60 is too high, the pressure reduction treatment is needed, and the early warning effect is achieved.
When the user closes the main valve of the external water supply device 60, but does not close the water heater in time, the water in the pressure-bearing water tank 10 can be continuously heated, the pressure in the pressure-bearing water tank 10 can be increased along with the temperature rise of the water, at the moment, the pressure in the pressure-bearing water tank 10 can open the bypass switch 2, the hot water in the pressure-bearing water tank 10 can enter the water inlet flow passage 11 through the water outlet flow passage 12 and the bypass switch 2, the pressure in the pressure-bearing water tank 10 is further reduced, the pressure in the pressure-bearing water tank 10 is equal to the pressure in the water inlet flow passage 11, deformation and expansion caused by the fact that the pressure in the pressure-bearing water tank 10 is too high are avoided, but the pressure in the water inlet flow passage 11 cannot be released outwards due to the fact that the user closes the main valve of the external water supply device 60, so that the pressure in the water inlet flow passage 11 can be increased along with the pressure rise in the pressure-bearing water tank 10; when the pressure in the water inlet flow passage 11 is larger than the rated pressure of the pressure relief switch 4, namely, the pressure in the middle flow passage 13 is larger than the rated pressure of the pressure relief switch 4, the pressure in the middle flow passage 13 opens the pressure relief switch 4, the air pressure is released through the middle flow passage 13 and the pressure relief switch 4, and meanwhile, hot water flows out through the middle flow passage 13 and the pressure relief switch 4, so that a user is reminded that the water heater is not closed, and the pressure-bearing water tank 10 is prevented from being deformed, expanded and damaged due to the too high pressure.
The pressure-bearing water storage water heater with the pressure-bearing water tank protection device is convenient to use, the pressure-bearing water tank 10 is protected through the pressure-bearing water tank protection device 30, the problem that the service life of the pressure-bearing water tank 10 is reduced due to the fact that the pressure of the pressure-bearing water tank 10 is too high or suddenly drops when the pressure-bearing water tank 10 is heated and used is solved, the purposes of constant-pressure heating and constant-pressure use are achieved, the problem that the pressure-bearing water tank 10 is crushed by external air due to the fact that hot water flows backwards and negative pressure is generated in the pressure-bearing water tank 10 due to external water stopping are solved, the internal and external pressure difference of the pressure-bearing water tank 10 is balanced, the purposes of backflow prevention and negative pressure protection are achieved, meanwhile, the functions of safe pressure relief and early warning are achieved, the fatigue of the pressure-bearing water tank 10 is greatly reduced, the service life of the pressure-bearing water tank 10 is prolonged, and when water in the pressure-bearing water tank 10 is discharged, the discharged water can enter the water inlet flow channel 11 to circulate, and the existing pressure discharging structure is prevented from being directly discharged into the air; in addition, through casing 1 being provided with inlet channel 11, middle runner 13 and outlet channel 12, with check switch 5, bypass switch 2, air make-up switch 3 and pressure release switch 4 set up in casing 1 in a concentrated way for pressure-bearing water tank protection device 30's compact structure, pipeline arrangement are convenient, and occupation space is little, and installation, later stage inspection and maintenance are convenient, and structural stability is strong, and is favorable to standardized use and batch production.
In this embodiment, the water outlet flow channel 12 is provided with a maintenance hole 121, the bypass switch 2 is exposed in the maintenance hole 121, a plug 122 is installed in the maintenance hole 121, a first internal thread (not numbered in the figure) is provided on an inner wall of the maintenance hole 121, and a first external thread (not numbered in the figure) screwed with the first internal thread is provided on the plug 122. During assembly, the plug 122 is rotated, the first external thread of the plug 122 is in threaded connection with the first internal thread of the maintenance hole 121, so that the plug 122 is arranged in the maintenance hole 121, the plug 122 has a sealing effect on the maintenance hole 121, hot water in the water outlet flow passage 12 is prevented from leaking from the maintenance hole 121, and waste of hot water resources is avoided; when the bypass switch 2 is damaged, a user can detach the plug 122 from the maintenance hole 121, and the user passes through the maintenance hole 121 to maintain the bypass switch 2, so that the user can maintain the bypass switch 2, and the user can maintain the bypass switch 2 conveniently and install the bypass switch 2 conveniently.
In this embodiment, the middle flow channel 13 includes a main flow channel 131 vertically disposed and an auxiliary flow channel 132 communicating with the main flow channel 131, where the auxiliary flow channel 132 is disposed intersecting with the main flow channel 131, preferably, the auxiliary flow channel 132 is disposed perpendicular to the main flow channel 131, so that the middle flow channel 13 is in a cross shape; the air supplementing switch 3 and the pressure relieving switch 4 are respectively arranged at two ends of the auxiliary flow channel 132 and are respectively positioned at two sides of the main flow channel 131, two ends of the main flow channel 131 are respectively communicated with the water outlet flow channel 12 and the water inlet flow channel 11, the water outlet flow channel 12 and the water inlet flow channel 11 are both vertically arranged with the main flow channel 131, the bypass switch 2 is arranged at the upper end of the middle flow channel 13, so that the pressure in the pressure-bearing water tank 10 is convenient for opening the bypass switch 2, the water outlet flow channel 12 is communicated with the water inlet flow channel 11, the air supplementing switch 3 and the pressure relieving switch 4 are respectively arranged at the left end and the right end of the middle flow channel 13, the air supplementing switch 3 is convenient for supplementing air pressure into the water inlet flow channel 11, and the pressure relieving switch 4 is convenient for releasing the pressure in the water inlet flow channel 11; the water outlet flow channel 12, the water inlet flow channel 11 and the auxiliary flow channel 132 are arranged in parallel, so that the structure is compact, the space for use is saved, and the shell 1 and the pressure-bearing water tank 10 are convenient to assemble.
In this embodiment, the water outlet channel 12 or the water inlet channel 11 is internally provided with a water flow switch 8, and preferably, the water flow switch 8 is located in the water outlet channel 12 and is installed at the plug 122; when the pressure-bearing water heater is used, the water flow switch 8 monitors the water flow in the water outlet flow channel 12, and when the water flow switch 8 detects that the water in the water outlet flow channel 12 flows, the water in the pressure-bearing water tank 10 stops heating, namely the water in the pressure-bearing water tank 10 stops heating in the using process, so that the purpose of power failure during the using process is achieved, and the safety performance of the pressure-bearing water heater is improved for a user. Of course, the water flow switch 8 may be installed in both the water outlet flow channel 12 and the water inlet flow channel 11.
In this embodiment, the housing 1 includes an upper horizontal portion 14, a middle horizontal portion 15, a lower horizontal portion 16, and a vertical portion 17 connected to the upper horizontal portion 14 and the lower horizontal portion 16, respectively, where the upper horizontal portion 14, the middle horizontal portion 15, and the lower horizontal portion 16 are disposed parallel to each other, a middle portion of the vertical portion 17 is disposed perpendicular to a middle portion of the middle horizontal portion 15, so that the housing 1 is in a king shape, the water outlet channel 12 penetrates the upper horizontal portion 14, the water inlet channel 11 penetrates the lower horizontal portion 16, the main channel 131 penetrates the vertical portion 17, the auxiliary channel 132 penetrates the middle horizontal portion 15, the bypass switch 2 is located at an upper end of the vertical portion 17, the air supplementing switch 3 and the pressure releasing switch 4 are located at two ends of the middle horizontal portion 15, respectively, and the check switch 5 is located at one end of the lower horizontal portion 16, which is far from the external water supply 60; the casing 1 has compact structure and reasonable design, is provided with the water inlet flow channel 11, the main flow channel 131, the auxiliary flow channel 132 and the water outlet flow channel 12 through the casing 1, and intensively sets the check switch 5, the bypass switch 2, the air supplementing switch 3 and the pressure relief switch 4 in the casing 1, so that the pipeline arrangement is convenient, the occupied space is small, the installation, the later inspection and the maintenance are convenient, the structural stability is high, the standardized use and the mass production are facilitated, and the casing 1 is convenient to be assembled with an external water supply device 60, an external water outlet device 70 and a pressure-bearing water tank 10 respectively.
In this embodiment, the water inlet of the water outlet channel 12 is provided with a water outlet pipe 6, the water outlet pipe 6 is convenient for the water outlet channel 12 to communicate with the water outlet port 103 of the pressure-bearing water tank 10, and the distance between the pressure-bearing water tank protection device 30 and the pressure-bearing water tank 10 can be increased, so that the pressure-bearing water tank 10 and the pressure-bearing water tank protection device 30 can be conveniently arranged, the water inlet and the water outlet of the water outlet channel 12 are both provided with second internal threads 123, one end of the water outlet pipe 6 communicates with the water outlet port 103 of the pressure-bearing water tank 10, and the other end of the water outlet pipe 6 is provided with second external threads (not numbered in the figure) screwed with the second internal threads 123; during assembly, one end of the water outlet pipeline 6 is communicated with the water outlet port 103 of the pressure-bearing water tank 10, and the second external thread at the other end of the water outlet pipeline 6 is in threaded connection with the second internal thread 123 in the water inlet of the water outlet flow channel 12, so that on one hand, the stability of connection between the water outlet pipeline 6 and the shell 1 is improved, on the other hand, the tightness of the water outlet pipeline 6 and the water outlet flow channel 12 is improved, and in addition, the second internal thread 123 in the water outlet of the water outlet flow channel 12 is convenient for the shell 1 to be connected with an external water outlet device 70.
In this embodiment, the water outlet of the water inlet channel 11 is provided with a water inlet pipe 7, the water inlet pipe 7 is convenient for the water inlet channel 11 to communicate with the water inlet port 102 of the pressure-bearing water tank 10, and the distance between the pressure-bearing water tank protection device 30 and the pressure-bearing water tank 10 can be increased, so that the pressure-bearing water tank 10 and the pressure-bearing water tank protection device 30 can be conveniently arranged, the water inlet and the water outlet of the water inlet channel 11 are respectively provided with a third internal thread 111 and a third external thread 112, one end of the water inlet pipe 7 communicates with the water inlet port 102 of the pressure-bearing water tank 10, and the other end of the water inlet pipe 7 is provided with a fourth internal thread (not numbered in the figure) screwed with the third external thread 112; during assembly, one end of the water inlet pipeline 7 is communicated with the water inlet port 102 of the pressure-bearing water tank 10, and a fourth internal thread at the other end of the water inlet pipeline 7 is in threaded connection with a third external thread 112 on a water outlet of the water inlet flow channel 11, so that on one hand, the stability of connection between the water inlet pipeline 7 and the shell 1 is improved, and on the other hand, the tightness of the water inlet pipeline 7 and the water inlet flow channel 11 is improved; in addition, the third internal thread 111 in the water inlet of the water inlet flow passage 11 facilitates connection of the housing 1 with the external water supply 60.
In this embodiment, a bypass baffle ring 1311 is disposed in the main flow channel 131, the bypass baffle ring 1311 is provided with a first flow hole 1312, the bypass switch 2 includes a bypass valve core 21 slidably disposed in the main flow channel 131, a bypass elastic member 22 disposed between the bypass valve core 21 and the bypass baffle ring 1311, and a bypass positioning ring 23 for abutting against one end of the bypass valve core 21, the bypass positioning ring 23 is disposed at one end of the main flow channel 131 near the water outlet flow channel 12, the bypass positioning ring 23 is provided with a second flow hole 231 for communicating with the first flow hole 1312, and one end of the bypass valve core 21 is used for blocking the second flow hole 231. When the pressure in the pressure-bearing water tank 10 is greater than the rated pressure of the bypass switch 2, the pressure in the pressure-bearing water tank 10 presses the bypass valve core 21, the bypass valve core 21 presses the bypass elastic member 22, the bypass elastic member 22 is compressed, the bypass valve core 21 moves downwards, the blocked second flow hole 231 is opened, the first flow hole 1312 on the bypass baffle ring 1311 is communicated with the second flow hole 231 on the bypass positioning ring 23, namely, the bypass switch 2 is in an opened state, hot water in the pressure-bearing water tank 10 enters the water inlet flow passage 11 through the bypass switch 2 and the main flow passage 131, and then the pressure in the pressure-bearing water tank 10 is reduced, and expansion caused by overhigh pressure in the pressure-bearing water tank 10 is avoided.
In this embodiment, a fifth internal thread 1313 is disposed on the inner wall of the main flow channel 131, and the bypass positioning ring 23 is provided with a fourth external thread 232 screwed with the fifth internal thread 1313, where the thread length of the fifth internal thread 1313 is greater than the thread length of the fourth external thread 232; during assembly, the fourth external thread 232 of the bypass positioning ring 23 is in threaded connection with the fifth internal thread 1313 in the main runner 131, so that on one hand, the stability of connection between the bypass positioning ring 23 and the main runner 131 is improved, and on the other hand, the tightness of the bypass positioning ring 23 and the main runner 131 is improved; in addition, the thread length of the fifth internal thread 1313 is greater than the thread length of the fourth external thread 232, so that the position of the bypass positioning ring 23 in the main flow channel 131 can be conveniently adjusted, namely, the depth of the bypass positioning ring 23 in the main flow channel 131 can be conveniently adjusted, so that the bypass positioning ring 23 can adjust the elastic force of the bypass elastic piece 22 through the bypass valve core 21, and then the rated pressure of the bypass switch 2 can be adjusted, and the pressure in the pressure-bearing water tank 10 can be adjusted.
In this embodiment, the bypass stop ring 1311 is further provided with a first guide hole 1314 parallel to the first flow hole 1312, and the other end of the bypass spool 21 is provided with a first guide rod 211 matched with the first guide hole 1314; through the cooperation of first guide arm 211 and first guide hole 1314, first guide hole 1314 plays the effect of location to first guide arm 211, and the bypass case 21 of being convenient for assembles on bypass check ring 1311, and first guide hole 1314 plays the effect of direction to first guide arm 211, and the bypass case 21 of being convenient for slides between bypass check ring 1311 and bypass locating ring 23, has improved the stability when bypass case 21 slides.
Preferably, the structure of the air-compensating switch 3 and the structure of the check switch 5 are the same as those of the bypass switch 2, the bypass check rings 1311 are disposed in the channels where the air-compensating switch 3, the check switch 5 and the bypass switch 2 are located, and the structures of the bypass check rings 1311 are the same, but the dimensions are changed according to the actual requirements, so that the working principles among the three are the same and are not described herein.
In this embodiment, a pressure relief stop ring 1321 is disposed in the auxiliary flow channel 132, the pressure relief stop ring 1321 is provided with a third flow hole 1322, the pressure relief switch 4 includes a pressure relief positioning ring 41 disposed at one end of the auxiliary flow channel 132 far away from the main flow channel 131, a pressure relief valve core 42 slidably disposed in the auxiliary flow channel 132, and a pressure relief elastic member 43 disposed between the pressure relief valve core 42 and the pressure relief positioning ring 41, the pressure relief positioning ring 41 is provided with a fourth flow hole 411 communicating with the third flow hole 1322, and one end of the pressure relief valve core 42 is used for plugging the third flow hole 1322. When the pressure in the main flow channel 131 is greater than the rated pressure of the pressure release switch 4, the pressure in the main flow channel 131 extrudes the pressure release valve core 42, the pressure release valve core 42 extrudes the pressure release elastic piece 43, the pressure release elastic piece 43 is compressed, the pressure release valve core 42 moves rightwards, the plugged third flow through hole 1322 is opened, the third flow through hole 1322 on the pressure release baffle ring 1321 is communicated with the fourth flow through hole 411 on the pressure release positioning ring 41, namely, the pressure release switch 4 is in an opened state, the pressure in the main flow channel 131 is released into the outside atmosphere through the pressure release switch 4, the pressures in the main flow channel 131 and the water inlet flow channel 11 are reduced, meanwhile, cold water in the water inlet flow channel 11 flows out through the pressure release switch 4, the fact that the pressure in the water inlet flow channel 11 is too high is proved, a user is reminded of carrying out pressure reduction treatment on the water inlet flow channel 11, the effect of early warning is achieved, and the non-return switch 5 is prevented from being opened due to the too high pressure in the water inlet flow channel 11.
In this embodiment, a sixth internal thread 1323 is provided on the inner wall of the auxiliary flow channel 132, the pressure relief positioning ring 41 is provided with a fifth external thread 412 screwed with the sixth internal thread 1323, and the thread length of the sixth internal thread 1323 is greater than the thread length of the fifth external thread 412; during assembly, the fifth external thread 412 on the pressure relief positioning ring 41 is in threaded connection with the sixth internal thread 1323 in the auxiliary flow channel 132, so that on one hand, the stability of connection between the pressure relief positioning ring 41 and the shell 1 is improved, and on the other hand, the tightness of the pressure relief positioning ring 41 and the auxiliary flow channel 132 is improved; in addition, the thread length of the sixth internal thread 1323 is greater than the thread length of the fifth external thread 412, so that the position of the pressure relief positioning ring 41 in the auxiliary flow channel 132 is convenient to adjust, that is, the depth of the pressure relief positioning ring 41 in the auxiliary flow channel 132 is convenient to adjust, so that the pressure relief positioning ring 41 adjusts the elastic force of the pressure relief elastic piece 43, and further adjusts the rated pressure of the pressure relief switch 4, thereby realizing the regulation and control of the pressure in the middle flow channel 13 and the pressure in the water inlet flow channel 11; the pressure relief positioning ring 41 is further provided with a second guide hole 413 parallel to the fourth flow hole 411, and the other end of the pressure relief valve core 42 is provided with a second guide rod 421 matched with the second guide hole 413; through the cooperation of second guide arm 421 and second guide hole 413, second guide hole 413 plays the effect of location to second guide arm 421, and the pressure release case 42 of being convenient for is assembled on pressure release holding ring 41, and second guide hole 413 plays the effect of direction to second guide arm 421, and pressure release case 42 of being convenient for slides between pressure release holding ring 41 and pressure release backing ring 1321, has improved the stability when pressure release case 42 slides.
Preferably, the bypass elastic member 22 and the pressure release elastic member 43 are springs, which have simple structure, low cost, good elasticity and sensitive response, and are convenient for the bypass valve core 21 and the pressure release valve core 42 to slide in the main flow channel 131 and the auxiliary flow channel 132 respectively.
Preferably, the host 20 is communicated with the host port 101 of the pressure-bearing water tank 10 via the connecting pipe 40, the connecting pipe 40 facilitates the host 20 to be communicated with the host port 101 of the pressure-bearing water tank 10, and the distance between the host 20 and the pressure-bearing water tank 10 can be increased, so that the host 20 and the pressure-bearing water tank 10 can be conveniently arranged.
Preferably, the filter 50 is installed at the water inlet of the water inlet channel 11, the filter 50 filters the water provided by the external water supply device 60, thereby purifying the water, avoiding the influence on the quality of the water due to impurities in the water, preventing the pressure-bearing water tank 10, the circulation pipeline and the pressure-bearing water tank protection device 30 from being blocked by the impurities in the water, and further prolonging the service life of the pressure-bearing water storage water heater.
All technical features in the embodiment can be freely combined according to actual needs.
The foregoing embodiments are preferred embodiments of the present invention, and in addition, the present invention may be implemented in other ways, and any obvious substitution is within the scope of the present invention without departing from the concept of the present invention.
Claims (10)
1. The utility model provides a take pressure-bearing water storage water heater of pressure-bearing water tank protection device which characterized in that: the device comprises a pressure-bearing water tank, a host and a pressure-bearing water tank protection device, wherein the pressure-bearing water tank is provided with a host port, a water inlet port and a water outlet port, the water outlet port is positioned above the water inlet port, and the host is communicated with the host port of the pressure-bearing water tank; the pressure-bearing water tank protection device comprises a shell and a bypass switch, an air supplementing switch, a pressure relieving switch and a check switch which are respectively arranged in the shell, wherein the shell is provided with a water inlet channel, a water outlet channel and an intermediate channel used for communicating the water inlet channel and the water outlet channel, a water outlet of the water inlet channel is communicated with a water inlet port of the pressure-bearing water tank, a water inlet of the water inlet channel is communicated with an external water supply device, a water inlet of the water outlet channel is communicated with a water outlet port of the pressure-bearing water tank, a water outlet of the water outlet channel is communicated with the external water outlet device, the bypass switch is arranged at one end, close to the water outlet channel, of the intermediate channel, the air supplementing switch and the pressure relieving switch are both arranged in the middle of the intermediate channel and used for controlling the communication between the intermediate channel and the external atmosphere, the check switch is arranged at a water outlet of the water inlet channel, the air supplementing switch and the pressure relieving switch are both arranged between the bypass switch and the check switch, the bypass switch is used for regulating and controlling the water body in the water outlet channel to enter the water inlet channel, and the check switch is used for regulating and controlling the water body in the water inlet channel to enter the pressure-bearing water tank.
2. The pressure-bearing water storage heater with pressure-bearing water tank protection device as claimed in claim 1, wherein: the water outlet flow passage is provided with a maintenance hole, the bypass switch is exposed in the maintenance hole, a plug is arranged in the maintenance hole, the inner wall of the maintenance hole is provided with a first internal thread, and the plug is provided with a first external thread in threaded connection with the first internal thread.
3. The pressure-bearing water storage heater with pressure-bearing water tank protection device as claimed in claim 1, wherein: the middle runner comprises a main runner and an auxiliary runner communicated with the main runner, the auxiliary runner and the main runner are arranged in a crossing mode, the air supplementing switch and the pressure relieving switch are respectively arranged at two ends of the auxiliary runner and are respectively located at two sides of the main runner, two ends of the main runner are respectively communicated with the water outlet runner and the water inlet runner, and the bypass switch is located at one end, close to the water outlet runner, of the main runner.
4. The pressure-bearing water storage heater with pressure-bearing water tank protection device as claimed in claim 1, wherein: a water flow switch is arranged in the water outlet flow channel or the water inlet flow channel.
5. A pressurized water storage heater with pressurized water tank protection apparatus as defined in claim 3, wherein: the shell comprises an upper horizontal part, a middle horizontal part, a lower horizontal part and a vertical part connected with the upper horizontal part and the lower horizontal part respectively, wherein the upper horizontal part, the middle horizontal part and the lower horizontal part are arranged in parallel, the middle part of the vertical part is perpendicular to the middle part of the middle horizontal part, the water outlet runner penetrates through the upper horizontal part, the water inlet runner penetrates through the lower horizontal part, the main runner penetrates through the vertical part, and the auxiliary runner penetrates through the middle horizontal part.
6. A pressurized water storage heater with pressurized water tank protection apparatus as defined in claim 3, wherein: the bypass valve is characterized in that a bypass baffle ring is arranged in the main runner, a first flow hole is formed in the bypass baffle ring, the bypass switch comprises a bypass valve core arranged in the main runner in a sliding mode, a bypass elastic piece arranged between the bypass valve core and the bypass baffle ring, and a bypass positioning ring used for abutting against one end of the bypass valve core, the bypass positioning ring is arranged at one end, close to the water outlet runner, of the main runner, a second flow hole communicated with the first flow hole is formed in the bypass positioning ring, and one end of the bypass valve core is used for blocking the second flow hole.
7. The pressurized water storage heater with pressurized water tank protection device of claim 6, wherein: the inner wall of the main runner is provided with a fifth internal thread, the bypass positioning ring is provided with a fourth external thread in threaded connection with the fifth internal thread, and the thread length of the fifth internal thread is longer than that of the fourth external thread.
8. The pressurized water storage heater with pressurized water tank protection device of claim 6, wherein: the bypass baffle ring is also provided with a first guide hole parallel to the first flow hole, and the other end of the bypass valve core is provided with a first guide rod matched with the first guide hole.
9. A pressurized water storage heater with pressurized water tank protection apparatus as defined in claim 3, wherein: the pressure relief valve is characterized in that a pressure relief baffle ring is arranged in the auxiliary flow passage, a third flow hole is formed in the pressure relief baffle ring, the pressure relief switch comprises a pressure relief positioning ring arranged at one end, far away from the main flow passage, of the auxiliary flow passage, a pressure relief valve core arranged in the auxiliary flow passage in a sliding mode and a pressure relief elastic piece arranged between the pressure relief valve core and the pressure relief positioning ring, the pressure relief positioning ring is provided with a fourth flow hole communicated with the third flow hole, and one end of the pressure relief valve core is used for blocking the third flow hole.
10. The pressurized water storage heater with pressurized water tank protection device of claim 9, wherein: the inner wall of the auxiliary flow passage is provided with a sixth internal thread, the pressure relief positioning ring is provided with a fifth external thread in threaded connection with the sixth internal thread, and the thread length of the sixth internal thread is longer than that of the fifth external thread; the pressure relief positioning ring is also provided with a second guide hole parallel to the fourth flow hole, and the other end of the pressure relief valve core is provided with a second guide rod matched with the second guide hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810621978.8A CN108613372B (en) | 2018-06-15 | 2018-06-15 | Pressure-bearing water storage water heater with pressure-bearing water tank protection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810621978.8A CN108613372B (en) | 2018-06-15 | 2018-06-15 | Pressure-bearing water storage water heater with pressure-bearing water tank protection device |
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| CN108613372B true CN108613372B (en) | 2023-06-23 |
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| CN114963550B (en) * | 2021-06-23 | 2024-03-29 | 青岛经济技术开发区海尔热水器有限公司 | Water heater and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AT404628B (en) * | 1994-12-20 | 1999-01-25 | Herz Armaturen Ag | FITTING FOR CONNECTING A RADIATOR TO THE INLET AND RETURN PIPES OF A TWO PIPE HEATING SYSTEM |
| JP3872912B2 (en) * | 1998-02-26 | 2007-01-24 | 株式会社ガスター | Combustion equipment and check device with overpressure prevention function |
| DE102011089447A1 (en) * | 2011-12-21 | 2013-06-27 | BSH Bosch und Siemens Hausgeräte GmbH | Hot water tank with pressure relief device |
| CN102679561A (en) * | 2012-04-28 | 2012-09-19 | 艾欧史密斯(中国)热水器有限公司 | Seepage preventing device for water storage container |
| CN204574504U (en) * | 2015-05-05 | 2015-08-19 | 广东万家乐空气能科技有限公司 | The press-bearing water tank of double protecting device |
| CN205781140U (en) * | 2016-06-27 | 2016-12-07 | 台州中天卫厨有限公司 | The anti-overvoltage of a kind of solar water heater and the multifunction valve of decompression |
| CN206943490U (en) * | 2017-07-03 | 2018-01-30 | 芜湖美的厨卫电器制造有限公司 | Safety valve and water heater |
| CN208487778U (en) * | 2018-06-15 | 2019-02-12 | 骆德育 | A kind of pressure-bearing storage water heater with press-bearing water tank protective device |
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