CN210663382U - Full-automatic pressure-bearing non-pressure operation system of water storage type water heater - Google Patents
Full-automatic pressure-bearing non-pressure operation system of water storage type water heater Download PDFInfo
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- CN210663382U CN210663382U CN201921774480.1U CN201921774480U CN210663382U CN 210663382 U CN210663382 U CN 210663382U CN 201921774480 U CN201921774480 U CN 201921774480U CN 210663382 U CN210663382 U CN 210663382U
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Abstract
The utility model discloses a full-automatic pressure-bearing non-pressure operation system of a water storage type water heater, which comprises a water tank, wherein the water tank is connected with a water outlet pipe and a water inlet pipe; the water outlet pipe is provided with a switch, a first hydraulic control valve and a third one-way valve, the first hydraulic control valve comprises a first one-way valve and a first piston chamber, the first one-way valve is connected with the water outlet pipe and the water drain pipe, and the first piston chamber is connected with the water outlet pipe and controls the switch of the first one-way valve according to the hydraulic change of the water outlet pipe; the inlet tube is equipped with second pilot operated valve and fourth check valve, and the second pilot operated valve includes second check valve and second piston chamber, and second piston chamber control connection outlet pipe and according to the switch of outlet pipe hydraulic control second check valve, the second check valve is established ties on the inlet tube. The utility model has the advantages that: hydraulic control is adopted to replace electric control, so that the use safety is improved; the water heater can normally use water when power is off; the use of electric control elements is reduced, and the manufacturing cost is reduced; the problem that the water tank is flat when no pressure is used for draining is avoided.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a full-automatic pressure-bearing non-pressure operation system of a water storage type water heater.
Background
At present, a water storage type closed water heater is generally provided with a special safety valve, a non-return function and an overload pressure relief function can be realized, the two functions are only used for the safe use of the water heater, and no benefit is brought to the service life of the water heater. The water tank of the water heater is often operated under high pressure due to the expansion of water in the water heater, so that the service life of the water tank is greatly damaged, and the normal service life of the water tank is greatly shortened.
The prior art discloses a technical scheme of a full-automatic pressure-bearing non-pressure operation system of a hot water storage tank of a water heater (with the patent publication number of CN 105241067A). The technical scheme of this patent is equipped with normally closed solenoid valve advancing the cold water pipeline, goes out hot water pipeline and has connected in parallel in proper order along the rivers direction pressure release pipeline, series connection has a check valve, parallel connection has pressure switch, is equipped with normally open solenoid valve on the pressure release pipeline, has solved the pressure-bearing problem under the inside no water state of heat storage water tank for the inside no longer bears the high pressure under no water state of heat storage water tank. However, the above technical solutions have the following problems: the use of a pressure reducing valve, an electromagnetic valve and a pressure switch is added on the water inlet and outlet pipelines of the heat storage water tank, so that the cost is high; under the condition of power failure, water cannot be normally supplied; the power supply is used in the system, so that the danger of the system is increased; when no pressure is used for draining, the water tank can be flattened. The above-mentioned technical problems are problems to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a full-automatic pressure-bearing non-pressure operation system of a water storage type water heater.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a full-automatic pressure-bearing non-pressure operation system of a water storage type water heater comprises a water tank, wherein the water tank is connected with a water outlet pipe and a water inlet pipe; the water outlet pipe is provided with a switch, a third check valve and a first hydraulic control valve, the switch is connected to the tail end of the water outlet pipe in series, the first hydraulic control valve comprises a first check valve and a first piston chamber, the first piston chamber controls the connection and the disconnection of the first check valve, the first check valve is connected between the water outlet pipe and a water drain pipe, the first piston chamber is connected with the water outlet pipe, and when the hydraulic pressure of the water outlet pipe exceeds a set high-pressure value N2, the first check valve is opened to drain water; the water inlet pipe is provided with a fourth check valve and a second hydraulic control valve, the second hydraulic control valve comprises a second check valve and a second piston chamber, the second piston chamber controls the connection and the disconnection of the second check valve, the second check valve is connected in series with the water inlet pipe, the second piston chamber is connected with a water outlet pipe, and when the hydraulic pressure of the water outlet pipe is lower than a low pressure value N1, the second check valve is opened to add water into the water tank; the low pressure value N1 is less than the high pressure value N2; the third one-way valve is connected in series on the water outlet pipe, and is arranged behind the connecting positions of the first one-way valve and the water outlet pipe and in front of the connecting positions of the first hydraulic cavity and the second hydraulic cavity with the water outlet pipe in terms of the water flow direction of the water outlet pipe; the fourth check valve is connected in series with the water inlet pipe between the second hydraulic control valve and the water tank.
In the technical scheme, the first one-way valve comprises a wide-mouth end and a narrow-mouth end, the wide-mouth end is provided with a first connecting end, the first connecting end is connected with the water drain pipe, the narrow-mouth end is provided with a second connecting end, the second connecting end is connected with the water outlet pipe, the wide-mouth end is connected with the narrow-mouth end, and the connecting position of the wide-mouth end is of a guide cone structure; the wide-mouth end internally comprises a first spring and a first valve core, one end of the first spring is connected with the top end of the wide-mouth end, the other end of the first spring is connected with the first valve core, and the first valve core is of a conical structure matched with the guide cone structure; the first piston chamber is divided into a first left hydraulic cavity and a first right hydraulic cavity by a piston, the first left hydraulic cavity is communicated with the end part of the narrow opening end of the first check valve, a second spring is arranged in the first left hydraulic cavity and connected with the end part of the first left hydraulic cavity and the piston, the piston is rigidly connected with the first valve core through a connecting channel of the first check valve and the first left hydraulic cavity, and the first right hydraulic cavity is connected with the water outlet pipe.
In the technical scheme, the second one-way valve is divided into a wide-mouth end and a narrow-mouth end, the wide-mouth end is provided with a third connecting end, the narrow-mouth end is provided with a fourth connecting end, the third connecting end and the fourth connecting end are respectively connected with the water inlet pipe, so that the second one-way valve is connected in series on the water inlet pipe, the wide-mouth end is connected with the narrow-mouth end, and the connecting position of the wide-mouth end is of a guide; a third spring and a second valve core are arranged in the wide-mouth end, one end of the third spring is connected with the top end of the wide-mouth end, the other end of the third spring is connected with the second valve core, and the second valve core is designed into a conical structure matched with the guide cone structure; the second piston chamber is divided into a second left hydraulic cavity and a second right hydraulic cavity by a piston, the second left hydraulic cavity is connected with the end part of the narrow opening of the second one-way valve, a sealing ring is arranged on a connecting channel, the second left hydraulic cavity is connected with a water outlet pipe, a fourth spring is arranged in the second right hydraulic cavity, the fourth spring is connected with the end part of the second right hydraulic cavity and the piston, and the piston is rigidly connected with the second valve core through the connecting channel of the second left hydraulic cavity and the second one-way valve.
In the technical scheme, the first spring and the second spring are compression springs.
In the technical scheme, the third spring and the fourth spring are compression springs, and the rigidity of the fourth spring is greater than that of the third spring.
In the technical scheme, a safety valve is arranged on a water outlet pipe and is arranged between a water tank and a first hydraulic control valve.
In the technical scheme, an air suction valve is arranged on a water outlet pipe and is arranged between a water tank and a first hydraulic control valve.
The invention has the beneficial effects that: the hydraulic control technology is adopted, so that the use of a power supply is avoided, and the use safety is improved; normal water use of the water heater is still ensured during power failure; the use of a pressure reducing valve, an electromagnetic valve, a pressure switch and the like is reduced, and the manufacturing cost is reduced; the problem that the water tank is flat when no pressure is used for draining is avoided.
Drawings
Fig. 1 is a schematic view of the overall connection structure of the present invention.
In the figure, 1-water tank; 2-water outlet pipe; 3-water inlet pipe; 4-a switch; 5-a water drain pipe; 6-safety valve; 7-an air suction valve; a1-first pilot operated valve; a2-second hydraulic control valve; b-a first one-way valve; b1 — first spool; b2 — first spring; c-a second one-way valve; c1 — second spool; c2-third spring; d-a first piston chamber; d1 — first left hydraulic chamber; d2 — first right hydraulic chamber; e-a third one-way valve; f-a fourth one-way valve; g-a second piston chamber; g1 — second left hydraulic chamber; g2 — second right hydraulic chamber; an H-seal ring; p1-first link end; p2-second connection end; p3-third connection end; p4-fourth connection end; N1-Low pressure value; n2-high pressure value.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a full-automatic pressure-bearing non-pressure operation system of a water storage type water heater comprises a water tank 1, wherein the water tank 1 is connected with a water outlet pipe 2 and a water inlet pipe 3.
The water outlet pipe 2 is provided with a switch 4, a first hydraulic control valve A1 and a third one-way valve E, the switch 4 is arranged at the tail end of the water outlet pipe 2 in series to control the water outlet of the water outlet pipe 2; the first pilot operated valve a1 includes a first check valve B and a first piston chamber D.
The first check valve B is divided into a wide-mouth end and a narrow-mouth end, the wide-mouth end is provided with a first connecting end P1, the first connecting end P1 is connected with the water drain pipe 5, the narrow-mouth end is provided with a second connecting end P2, the second connecting end P2 is connected with the water outlet pipe 2, the wide-mouth end is connected with the narrow-mouth end, the connecting position is a guide cone structure, the top end of the wide-mouth end is connected with a first spring B2, the other end of the first spring B2 is connected with a first valve core B1, the first valve core B1 is designed into a conical structure matched with the guide cone structure, and the first spring B2 extrudes the first valve core B1 to enable the first valve core B1 to.
The first piston chamber D is divided into a first left hydraulic cavity D1 and a first right hydraulic cavity D2 by a piston, the first left hydraulic cavity D1 is connected with the end part of the narrow end of the first check valve B, a second spring is arranged in the first left hydraulic cavity D1, one end of the second spring is connected with the end part of the first left hydraulic cavity D1, the other end of the second spring is connected with the piston, and the piston is rigidly connected with a first valve core B1 through a connecting channel of the first check valve B and the first left hydraulic cavity D1; the first right hydraulic chamber D2 is in communication with the outlet pipe 2 via a flow passage.
The third one-way valve E is connected in series on the water outlet pipe 2, so that the water flow of the water outlet pipe 2 only comes out of the water tank 1 and does not flow back into the water tank 1. In terms of the water flow direction of the water outlet pipe 2, the third check valve E is disposed behind the connection position of the second connection end P2 and the water outlet pipe 2 and in front of the connection position of the first right hydraulic chamber D2 and the water outlet pipe 2.
The first valve spool B1 realizes the communication or the obstruction of the wide-mouth end and the narrow-mouth end of the first valve spool B1 at the first check valve B through the combined action of the first spring B2, the second spring and other acting forces.
When the hydraulic pressure of the first right hydraulic pressure cavity D2 is increased to a set high pressure value, the hydraulic pressure is sufficient to push the second spring, the first valve core B1 connected with the second spring, and the first spring B2 connected with the first valve core B1, the first valve core B1 moves out of the connection position of the wide-mouth end and the narrow-mouth end, so that the first connection end P1 and the second connection end P2 are conducted, and the water in the water outlet pipe 2 is discharged along the first check valve B in the first hydraulic control valve a1 and the water outlet pipe 5; on the contrary, the hydraulic pressure of the first right hydraulic pressure chamber D2 is not enough to push and push the second spring, the first valve core B1 connected with the second spring, and the first spring B2 connected with the first valve core B1, the first valve core B1 keeps close-fitting and blocking with the guide cone structure, the first connection end P1 and the second connection end P2 in the first check valve B are in a blocking state, and the water in the water outlet pipe 2 cannot be discharged from the drain pipe 5.
The water inlet pipe 3 is provided with a second pilot operated valve A2 and a fourth check valve F, and the second pilot operated valve A2 comprises a second check valve C and a second piston chamber G.
The second one-way valve C is divided into a wide-opening end and a narrow-opening end, the wide-opening end is provided with a third connecting end P3, the narrow-opening end is provided with a fourth connecting end P4, the third connecting end P3 and the fourth connecting end P4 are respectively connected with the water inlet pipe 3, and the second one-way valve C is connected with the water inlet pipe 3 in series; the wide-mouth end is connected with the narrow-mouth end, the connecting position of the wide-mouth end is a guide cone structure, the top end of the wide-mouth end is connected with a third spring C2, the other end of the third spring C2 is connected with a second valve core C1, and the second valve core C1 is designed to be a conical structure matched with the guide cone structure.
The second piston chamber G includes a second left hydraulic chamber G1 and a second right hydraulic chamber G2 separated by a piston, the second left hydraulic chamber G1 is connected to the narrow-end of the second check valve C, the second left hydraulic chamber G1 is connected to the water outlet pipe 2 through a flow passage, and the connection position is on the water outlet pipe 2 behind the third check valve E. A fourth spring is arranged in the second right hydraulic chamber G2 and is connected with the end part of the second right hydraulic chamber G2 and the piston, and the piston is rigidly connected with a second valve core C1 through a connecting channel between the second left hydraulic chamber G1 and the second one-way valve C. The connected position between second left hydraulic pressure chamber G1 and the second check valve C is equipped with sealing washer H to guarantee that the separation between second hydraulic pressure chamber G2 and the second check valve C is sealed, prevent outlet pipe 2 and inlet tube 3 direct intercommunication.
The fourth check valve F is connected in series to the water inlet pipe 3 between the third connection end P3 and the water tank 1, ensuring that the water flow of the water inlet pipe 3 only enters the water tank 1 and does not exit from the water tank 1.
The second valve core C1 realizes the communication or the obstruction of the wide-mouth end and the narrow-mouth end of the second valve core C1 at the second one-way valve C under the combined action of the third spring C2, the fourth spring and other resistance forces. In order to ensure that the second spool C1 can be ejected when the hydraulic pressure of the second hydraulic pressure chamber G2 is at a lower pressure, it is necessary to ensure that the fourth spring has a higher stiffness than the third spring C2 in design.
When the hydraulic pressure of the second left hydraulic chamber G1 is lower than the set low pressure value, the hydraulic pressure of the second left hydraulic chamber G1 is not enough to press the fourth spring, the second valve spool C1 connected with the fourth spring and the third spring C2 connected with the second valve spool C1, the second valve spool C1 moves out of the connection position of the wide-mouth end and the narrow-mouth end, the third connection end P3 and the fourth connection end P4 are communicated, and the water in the water inlet pipe 3 is added into the water tank through the second check valve C in the second hydraulic control valve a 2; on the contrary, when the hydraulic pressure of the second left hydraulic chamber G1 is greater than the set low pressure value, the hydraulic pressure of the second left hydraulic chamber G1 is enough to press the fourth spring, the second spool C1 connected with the fourth spring, and the third spring C2 connected with the second spool C1, so that the second spool C1 is kept attached and blocked with the guide cone structure, the third connection end P3 and the fourth connection end P4 in the second check valve C are in a blocking state, and the water in the water inlet pipe 3 cannot enter the water tank.
Wherein, still be equipped with relief valve 6 and suction valve 7 on outlet pipe 2, relief valve 6 and suction valve 7 all locate between water tank 1 and first pilot-operated valve A1. The safety valve 6 is mainly used for controlling the pressure of the water outlet pipe 2 not to exceed a specified value, and plays an important role in protecting personal safety and equipment operation. The air suction valve 7 is a device capable of automatically eliminating vacuum in a supply pipeline, effectively preventing siphon backflow, and avoiding the damage of a water tank caused by negative pressure in the water tank due to various abnormal factors.
The first spring B2, the first piston D1, the third spring C2 and the second piston G1 adopted in the first pilot-controlled valve a1 and the second pilot-controlled valve a2 are compression springs.
The full-automatic pressure-bearing pressureless operation system of the water storage type water heater is provided with a low pressure value N1 and a high pressure value N2. When the hydraulic pressure of the second hydraulic chamber G2 is lower than N1, the system automatically feeds water; when the hydraulic pressure of the first hydraulic chamber D2 is higher than N2, the system automatically drains water. In practical application, the values of the low pressure value N1 and the high pressure value N2 are influenced by factors such as spring force, hydraulic pressure and other resistance, the values slightly fluctuate within a limited range, but the phenomenon of long-flowing water that water enters the water inlet pipe and is drained by the drain pipe can not occur only by ensuring that the low pressure value N1 is lower than the high pressure value N2.
When the water heater is in a water-using state (namely, the switch 4 of the water outlet pipe 2 is turned on), the hydraulic pressure in the water outlet pipe 2 is reduced to be lower than a low-pressure value N1, and the hydraulic pressure of the first right hydraulic cavity D2 and the hydraulic pressure of the second left hydraulic cavity G1 which are communicated with the water outlet pipe 2 are also reduced to be lower than a low-pressure value N1. The hydraulic pressure of the first right hydraulic chamber D2 is low, the first valve core B1 blocks the conduction of the first connection end P1 and the second connection end P2, and the drain pipe 5 does not drain water. The hydraulic pressure of the second left hydraulic pressure chamber G1 is low, the second valve core C1 moves out of the connection position of the wide-mouth end and the narrow-mouth end of the second check valve C, the third connection end P3 and the fourth connection end P4 are communicated, and the water inlet pipe 3 adds water for the water tank 1.
When the water heater is in a non-water-use state (namely, the switch 4 of the water outlet pipe 2 is turned off), the hydraulic pressures of the water tank 1 and the water outlet pipe 2 are increased to be higher than a high pressure value N2 due to factors such as heating in the water tank 1 of the water heater, the hydraulic pressure of the first right hydraulic cavity D2 is high, the first valve core B1 is ejected out, the first connecting end P1 and the second connecting end P2 are conducted, and the drain pipe 5 performs drainage and pressure reduction; the hydraulic pressure of the second left hydraulic chamber G1 is high, the second valve spool C1 blocks the conduction of the third connecting end P3 and the fourth connecting end P4, and the water inlet pipe 3 cannot add water to the water tank.
The above examples are intended to illustrate rather than to limit the invention, and all equivalent changes and modifications made by the methods described in the claims of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a full-automatic pressure-bearing non-pressure operating system of water storage formula water heater which characterized in that: comprises a water tank, wherein the water tank is connected with a water outlet pipe and a water inlet pipe; the water outlet pipe is provided with a switch, a third one-way valve and a first hydraulic control valve, the switch is connected to the tail end of the water outlet pipe in series, the first hydraulic control valve comprises a first one-way valve and a first piston chamber, the first piston chamber controls the connection and the disconnection of the first one-way valve, the first one-way valve is connected between the water outlet pipe and a water drain pipe, the first piston chamber is connected with the water outlet pipe, and when the hydraulic pressure of the water outlet pipe exceeds a set high-pressure value N2, the first one-way valve is opened to drain water; the water inlet pipe is provided with a fourth check valve and a second hydraulic control valve, the second hydraulic control valve comprises a second check valve and a second piston chamber, the second piston chamber controls the connection and the disconnection of the second check valve, the second check valve is connected in series with the water inlet pipe, the second piston chamber is connected with a water outlet pipe, and when the hydraulic pressure of the water outlet pipe is lower than a low-pressure value N1, the second check valve is opened to add water into the water tank; the low pressure value N1 is less than the high pressure value N2; the third one-way valve is connected in series on the water outlet pipe, and is arranged behind the connecting positions of the first one-way valve and the water outlet pipe and in front of the connecting positions of the first hydraulic cavity and the second hydraulic cavity with the water outlet pipe in terms of the water flow direction of the water outlet pipe; the fourth check valve is connected in series with a water inlet pipe between the second hydraulic control valve and the water tank.
2. The full-automatic pressure-bearing pressureless operating system of the water storage type water heater according to claim 1, characterized in that: the first one-way valve comprises a wide-mouth end and a narrow-mouth end, the wide-mouth end is provided with a first connecting end, the first connecting end is connected with the water drain pipe, the narrow-mouth end is provided with a second connecting end, the second connecting end is connected with the water outlet pipe, the wide-mouth end is connected with the narrow-mouth end, and the connecting position of the wide-mouth end and the narrow-mouth end is of a guide cone structure; the wide-mouth end internally comprises a first spring and a first valve core, one end of the first spring is connected with the top end of the wide-mouth end, the other end of the first spring is connected with the first valve core, and the first valve core is of a conical structure matched with the guide cone structure; the first piston chamber is divided into a first left hydraulic cavity and a first right hydraulic cavity by a piston, the first left hydraulic cavity is communicated with the end part of the narrow opening of the first check valve, a second spring is arranged in the first left hydraulic cavity and connected with the end part of the first left hydraulic cavity and the piston, the piston is rigidly connected with the first valve core through a connecting channel of the first check valve and the first left hydraulic cavity, and the first right hydraulic cavity is connected with the water outlet pipe.
3. The full-automatic pressure-bearing pressureless operating system of the water storage type water heater according to claim 1, characterized in that: the second one-way valve is divided into a wide-mouth end and a narrow-mouth end, the wide-mouth end is provided with a third connecting end, the narrow-mouth end is provided with a fourth connecting end, the third connecting end and the fourth connecting end are respectively connected with the water inlet pipe, so that the second one-way valve is connected on the water inlet pipe in series, the wide-mouth end is connected with the narrow-mouth end, and the connecting position of the wide-mouth end is of a guide cone structure; a third spring and a second valve core are arranged in the wide-mouth end, one end of the third spring is connected with the top end of the wide-mouth end, the other end of the third spring is connected with the second valve core, and the second valve core is designed into a conical structure matched with the guide cone structure; the second piston chamber is divided into a second left hydraulic cavity and a second right hydraulic cavity by a piston, the second left hydraulic cavity is connected with the end part of the narrow opening of the second one-way valve, a sealing ring is arranged on the connecting channel, the second left hydraulic cavity is connected with a water outlet pipe, a fourth spring is arranged in the second right hydraulic cavity, the fourth spring is connected with the end part of the second right hydraulic cavity and the piston, and the piston is rigidly connected with the second valve core through the connecting channel of the second left hydraulic cavity and the second one-way valve.
4. The full-automatic pressure-bearing pressureless operating system of the water storage type water heater according to claim 2, characterized in that: the first spring and the second spring are compression springs.
5. The full-automatic pressure-bearing pressureless operating system of the water storage type water heater according to claim 3, characterized in that: the third spring and the fourth spring are compression springs, and the rigidity of the fourth spring is greater than that of the third spring.
6. The full-automatic pressure-bearing pressureless operating system of the water storage type water heater according to claim 1, characterized in that: and the water outlet pipe is provided with a safety valve, and the safety valve is arranged between the water tank and the first hydraulic control valve.
7. The full-automatic pressure-bearing pressureless operating system of the water storage type water heater according to claim 1, characterized in that: and the water outlet pipe is provided with an air suction valve which is arranged between the water tank and the first hydraulic control valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774480.1U CN210663382U (en) | 2019-10-22 | 2019-10-22 | Full-automatic pressure-bearing non-pressure operation system of water storage type water heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921774480.1U CN210663382U (en) | 2019-10-22 | 2019-10-22 | Full-automatic pressure-bearing non-pressure operation system of water storage type water heater |
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| CN210663382U true CN210663382U (en) | 2020-06-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595076A (en) * | 2019-10-22 | 2019-12-20 | 广东瑞发水箱制品有限公司 | Full-automatic pressure-bearing non-pressure operation system of water storage type water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595076A (en) * | 2019-10-22 | 2019-12-20 | 广东瑞发水箱制品有限公司 | Full-automatic pressure-bearing non-pressure operation system of water storage type water heater |
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Address after: 529700 building 4, No.22, new material base, Gonghe Town, Heshan City, Jiangmen City, Guangdong Province Patentee after: Guangdong Ruifa Electric Appliance Co.,Ltd. Address before: 529700 building 4, No.22, new material base, Gonghe Town, Heshan City, Jiangmen City, Guangdong Province Patentee before: GUANGDONG RUIFA WATER TANK PRODUCTS Co.,Ltd. |