CN219263210U - Throttle valve and gas water heater - Google Patents
Throttle valve and gas water heater Download PDFInfo
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- CN219263210U CN219263210U CN202320230055.6U CN202320230055U CN219263210U CN 219263210 U CN219263210 U CN 219263210U CN 202320230055 U CN202320230055 U CN 202320230055U CN 219263210 U CN219263210 U CN 219263210U
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Abstract
The utility model discloses a throttle valve and a gas water heater, wherein the throttle valve comprises: the valve body is provided with a water inlet and a water outlet, and a valve port is arranged on a passage between the water inlet and the water outlet; the valve core comprises a valve rod and a valve cap arranged at the end part of the valve rod, the valve core is arranged on the valve body in a sliding mode, the valve cap slides between shielding and opening the valve port, and an orifice smaller than the aperture of the valve port is arranged on the valve cap; and a solenoid, the valve rod having magnetism, the solenoid being configured to drive the valve rod to slide upon energization. The valve core of the throttle valve can shield and open the valve port, and because the valve bonnet of the valve core is provided with the orifice smaller than the aperture of the valve port, when the valve bonnet shields the valve port, the flow flowing through the throttle valve can be reduced, thereby achieving the throttle effect.
Description
Technical Field
The utility model relates to a water valve, in particular to a throttle valve and a gas water heater.
Background
In the using process of the gas water heater, in order to save water, a user frequently turns on and off the water, and turns on the hot water again after the user turns on the hot water for a period of time. When the user opens the hot water next time, because the gas water heater needs to carry out the ignition and pass the fire process when starting, after these processes are accomplished, the gas water heater can carry out the combustion again according to the temperature of water that the user required, therefore has some cold water still not to get heated yet, just has flowed through the heat exchanger. Previously, because the hot water is reserved in the pipeline, a user can feel that the water temperature is hot at first (the hot water reserved in the pipeline), then the water temperature is slowly cooled (cold water in the ignition process), and finally the water temperature is heated again (the starting of the gas water heater is finished), so that the user experience is poor. At present, this phenomenon is called a water outlet temperature drop phenomenon. In addition, when a general user turns on the hot water tap, a large amount of cold water which is not heated is wasted while waiting for the hot water to flow out.
The reason that the water temperature falls in the gas water heater appears again is that the valve body of installation can not adjust the flow according to the different states of gas water heater to in the ignition process of hot gas water heater at the reopening, a large amount of cold water still has not yet reached by the heat exchanger heating, has just flowed to tap, and user's temperature experience is poor.
Disclosure of Invention
The utility model aims to overcome the defect that a valve body in the prior art cannot adjust flow according to different states of a gas water heater, and provides a throttle valve and the gas water heater.
The utility model solves the technical problems by the following technical scheme:
a throttle valve, comprising:
the valve body is provided with a water inlet and a water outlet, and a valve port is arranged on a passage between the water inlet and the water outlet;
the valve core comprises a valve rod and a valve cap arranged at the end part of the valve rod, the valve core is arranged on the valve body in a sliding mode, the valve cap slides between shielding and opening the valve port, and an orifice smaller than the aperture of the valve port is arranged on the valve cap;
and a solenoid, the valve rod having magnetism, the solenoid being configured to drive the valve rod to slide upon energization.
In the scheme, the valve core of the throttle valve can shield and open the valve port, and because the valve bonnet of the valve core is provided with the orifice smaller than the aperture of the valve port, when the valve bonnet shields the valve port, the flow rate flowing through the throttle valve can be reduced, thereby achieving the throttling effect. Because the valve rod of the valve core has magnetism, the electromagnetic coil drives the valve core to slide after being electrified, so the electromagnetic coil can be electrically connected with the electric controller assembly, and the electromagnetic coil is controlled by the electric controller assembly, so that the position of the valve core can be adjusted according to different states of hot water started by a user, the phenomenon of water temperature drop is avoided, and the aim of saving water is also achieved. Specifically, when the electromagnetic coil is electrified with forward current, the electromagnetic coil generates magnetism the same as that of the valve rod, the valve core moves to a position where the valve cap shields the valve port under the action of electromagnetic force, so that the valve port is closed, and at the moment, water flow can only flow out through the throttling hole on the valve cap. The flow area of the throttle hole is small, the water resistance is large, and the water flow through the throttle valve is small. When the electromagnetic coil is electrified with reverse current, the electromagnetic coil generates magnetism different from that of the valve rod, the valve core moves to a position for enabling the valve cap to open the valve port under the action of electromagnetic force, the valve port is completely opened, water flows through the valve port, at the moment, the water resistance of the passage is minimum, and the water flow flowing through the throttle valve can be maximum.
Preferably, the number of the orifices is plural, and plural orifices are arranged at intervals in the circumferential direction of the bonnet.
In this scheme, adopt above-mentioned structure setting for rivers evenly distributed is around the valve cap, improves the atress of valve cap, also prevents because rivers are unevenly distributed, leads to vibration and noise.
Preferably, the throttle valve further comprises an elastic element, and two ends of the elastic element are respectively connected with the valve body and the valve rod.
In the scheme, by adopting the structure, the elastic element provides a restoring force for the valve core, and the electromagnetic coil can realize movement of the valve core only by electrifying or de-electrifying, so that the control flow is simplified. When the electromagnetic coil is not electrified, the valve core moves to a position for enabling the valve cap to shield the valve port under the pushing of the reset spring, so that the valve port is closed, and at the moment, water flow can only flow out through the throttling hole on the valve cap. Because the flow area of the orifice is small, the water resistance is large, and the flow rate of the circulated water can be small. When the electromagnetic coil is electrified, the valve core moves to a position for enabling the valve cap to open the valve port under the action of electromagnetic force, the reset spring is compressed, the valve port is completely opened, at the moment, the water resistance of the passage is minimum, and the water flow rate capable of flowing can be maximum.
Preferably, the valve body comprises a valve body and a mounting piece, the mounting piece is detachably connected to the valve body, a mounting channel is formed by the valve body and the mounting piece together, and the valve rod penetrates through and is slidably arranged in the mounting channel.
In this scheme, adopt above-mentioned structure setting, be convenient for through installation passageway dismouting valve rod, improve assembly efficiency.
Preferably, the electromagnetic coil is disposed inside the mounting member.
In this scheme, adopt above-mentioned structure setting, be convenient for install fixed solenoid.
Preferably, the throttle valve further comprises an elastic element, the elastic element is arranged in the installation channel, and two ends of the elastic element are respectively connected with the valve rod and the installation piece.
In this scheme, adopt above-mentioned structure setting, elastic element provides a restoring force for the case, and electromagnetic coil only needs circular telegram or outage, just can realize the removal of case, simplifies control flow, and installation passageway is also convenient for install fixed elastic element simultaneously.
Preferably, an end cover is mounted at the inlet of the mounting channel, and a communication hole is formed in the end cover and communicated with the mounting channel.
In this scheme, adopt above-mentioned structure setting, set up the end cover, the dismouting case of being convenient for, the effect of intercommunicating pore plays the effect of balanced outside atmospheric pressure when the case moves, reduces the resistance when the case moves.
Preferably, a first sealing ring is arranged between the combining part of the mounting piece and the valve body.
In this scheme, adopt above-mentioned structure setting, set up first sealing washer, prevent that the internal water of valve from flowing out between the junction of installed part and valve body, improve sealed effect.
Preferably, a second sealing ring is arranged between the valve rod and the inner wall of the mounting piece.
In this scheme, adopt above-mentioned structure setting, set up the second sealing washer for the clearance between the inner wall of sealed valve rod and installed part prevents that water from flowing out in the installation passageway, improves sealed effect.
A gas water heater comprising a heat exchanger and a throttle valve as described above, the throttle valve being mounted on a water inlet line of the heat exchanger.
In this scheme, this gas heater has the choke valve, and the choke valve is controlled by the electric controller assembly, can be according to the different states that the user opened hot water and adjust the position of case to avoid going out water temperature drop phenomenon again, also reach the purpose of water conservation simultaneously, improve user experience.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the utility model.
The utility model has the positive progress effects that: the valve core of the throttle valve can shield and open the valve port, and because the valve bonnet of the valve core is provided with the orifice smaller than the aperture of the valve port, when the valve bonnet shields the valve port, the flow flowing through the throttle valve can be reduced, thereby achieving the throttle effect. Specifically, when the electromagnetic coil is electrified with forward current, the electromagnetic coil generates magnetism the same as that of the valve rod, the valve core moves to a position where the valve cap shields the valve port under the action of electromagnetic force, so that the valve port is closed, and at the moment, water flow can only flow out through the throttling hole on the valve cap. The flow area of the throttle hole is small, the water resistance is large, and the water flow through the throttle valve is small. When the electromagnetic coil is electrified with reverse current, the electromagnetic coil generates magnetism different from that of the valve rod, the valve core moves to a position for enabling the valve cap to open the valve port under the action of electromagnetic force, the valve port is completely opened, water flows through the valve port, at the moment, the water resistance of the passage is minimum, and the water flow flowing through the throttle valve can be maximum.
Drawings
FIG. 1 is a schematic diagram of a throttle valve according to a preferred embodiment of the present utility model.
Fig. 2 is an exploded view of a throttle valve according to a preferred embodiment of the present utility model.
FIG. 3 is a schematic diagram of a valve core according to a preferred embodiment of the present utility model.
FIG. 4 is a cross-sectional view of a throttle valve according to a preferred embodiment of the present utility model.
FIG. 5 is a cross-sectional view of a throttle valve according to a preferred embodiment of the present utility model.
FIG. 6 is a schematic diagram of a gas water heater according to a preferred embodiment of the present utility model.
Reference numerals illustrate:
Valve port 13
Valve body 14
End cap 16
Mounting channel 5
Water inlet pipe 9
Detailed Description
The utility model will now be more fully described by way of example only and with reference to the accompanying drawings, but the utility model is not thereby limited to the scope of the examples described.
As shown in fig. 1 to 6, the present embodiment discloses a throttle valve 100 comprising a valve body 1, a valve body 2 and a solenoid (not shown in the drawings), a water inlet 11 and a water outlet 12 are provided on the valve body 1, and a valve port 13 is provided on a passage between the water inlet 11 and the water outlet 12, the valve body 2 comprises a valve stem 21 and a valve cap 22 provided at an end of the valve stem 21, the valve body 1 is slidably provided with the valve body 2, and the valve cap 22 slides between shielding and opening the valve port 13. The valve rod 21 of the valve core 2 has magnetism, the electromagnetic coil is configured to drive the valve core 2 to slide after being electrified, and the valve cap 22 is provided with an orifice 221 smaller than the aperture of the valve port 13.
In the present embodiment, the valve body 2 of the throttle valve 100 can shield and open the valve port 13, and since the orifice 221 smaller than the aperture of the valve port 13 is provided in the bonnet 22 of the valve body 2, the flow rate flowing through the throttle valve 100 can be made smaller when the bonnet 22 shields the valve port 13, thereby achieving the throttle effect. Because the valve rod 21 of the valve core 2 has magnetism, and the electromagnetic coil drives the valve core 2 to slide after being electrified, the electromagnetic coil can be electrically connected with the electric controller assembly 10, and the electromagnetic coil is controlled by the electric controller assembly 10, so that the position of the valve core 2 can be adjusted according to different states of the hot water started by a user, the phenomenon of water temperature drop is avoided, and the aim of saving water is also achieved. Specifically, when the electromagnetic coil is energized with a forward current, the electromagnetic coil generates the same magnetism as the valve rod 21, and the valve core 2 moves to a position where the valve cap 22 shields the valve port 13 under the action of electromagnetic force, so that the valve port 13 is closed, and at this time, water can only flow out through the orifice 221 on the valve cap 22. Since the orifice 221 has a small flow area and a large water resistance, the flow rate of water flowing through the throttle valve 100 becomes small, and water saving is achieved. When the electromagnetic coil is electrified with reverse current, the electromagnetic coil generates magnetism different from that of the valve rod 21, the valve core 2 moves to a position for enabling the valve cap 22 to open the valve port 13 under the action of electromagnetic force, the valve port 13 is completely opened, water flows through the valve port 13, at the moment, the water resistance of the passage is minimum, and the water flow rate flowing through the throttle valve 100 can reach the maximum, so that a user can use normal flow of hot water.
In this embodiment, the size of the orifice 221 aperture is related to the minimum start-up flow of the gas water heater. The flow rate through the orifice 221 is not less than the minimum flow rate at which the gas water heater can be started.
As shown in fig. 3, the number of the orifices 221 is plural, and the plural orifices 221 are arranged at intervals in the circumferential direction of the bonnet 22, so that the water flow is uniformly distributed around the bonnet 22, the stress of the bonnet 22 is improved, and vibration and noise due to the uneven water flow distribution are also prevented.
As shown in fig. 1, 4 and 5, the valve body 1 includes a valve body 14 and a mounting member 15, the mounting member 15 is detachably connected to the valve body 14, the valve body 14 and the mounting member 15 together form a mounting channel 5, and a valve rod 21 is inserted through and slidably disposed in the mounting channel 5. The installation piece 15 is arranged, so that the installation channel 5 is formed conveniently, the valve core 2 is conveniently disassembled and assembled through the installation channel 5, and the assembly efficiency is improved.
As shown in fig. 4 and 5, the electromagnetic coil is provided inside the mounting member 15, facilitating the mounting and fixing of the electromagnetic coil.
As shown in fig. 2, 4 and 5, the throttle valve 100 further includes an elastic member 4, the elastic member 4 is disposed in the mounting channel 5, and both ends of the elastic member 4 are respectively connected to the valve stem 21 mounting member 15. The elastic element 4 provides a restoring force for the valve core 2, and the electromagnetic coil can realize the movement of the valve core 2 only by electrifying or de-electrifying, so that the control flow is simplified. When the solenoid is not energized, the valve core 2 is pushed by the return spring to a position where the valve cap 22 shields the valve port 13, so that the valve port 13 is closed, and at this time, water can only flow out through the orifice 221 on the valve cap 22. Since the orifice 221 has a small flow area, the water resistance is large, and the flow rate of the water to be circulated becomes small. When the electromagnetic coil is electrified, the valve core 2 moves to a position for enabling the valve cap 22 to open the valve port 13 under the action of electromagnetic force, the reset spring is compressed, the valve port 13 is completely opened, at the moment, the water resistance of the passage is minimum, and the water flow rate capable of flowing can reach the maximum. At the same time, the mounting channel 5 also facilitates the mounting of the stationary elastic element 4.
In other embodiments, both ends of the elastic member 4 may be connected to the valve body 1 and the valve stem 21, respectively.
As shown in fig. 2, 4 and 5, an end cap 16 is mounted at the inlet of the mounting passage 5, and a communication hole 161 is provided on the end cap 16, the communication hole 161 communicating with the mounting passage 5. The end cap 16 is used for closing the installation channel 5 and also facilitating the disassembly and assembly of the valve core 2 through the installation channel 5. The communication hole 161 functions to balance the external air pressure when the spool 2 moves, reducing the resistance when the spool 2 moves.
As shown in fig. 2, 4 and 5, a first seal ring 6 is provided between the joint of the mount 15 and the valve body 14. The first sealing ring 6 is arranged to prevent water in the valve body 1 from flowing out from the joint part between the mounting piece 15 and the valve body 14, thereby improving the sealing effect.
As shown in fig. 2, 4 and 5, a second sealing ring 7 is provided between the valve stem 21 and the inner wall of the mount 15. The second sealing ring 7 is used for sealing a gap between the valve rod 21 and the inner wall of the mounting piece 15, so that water is prevented from flowing out of the mounting channel 5, and the sealing effect is improved.
In the present embodiment, the direction of water flow 200 within the throttle valve 100 is shown by the arrows in fig. 4 and 5.
As shown in fig. 6, the present embodiment also discloses a gas water heater including the heat exchanger 8 and the throttle valve 100 as described above, the throttle valve 100 being installed on the water inlet pipe 9 of the heat exchanger 8. The throttle valve 100 is electrically connected to the electronic controller assembly 10 and is controlled by a computer board. Because the gas water heater is provided with the throttle valve 100, the throttle valve 100 is controlled by the electric controller assembly 10, and the position of the valve core 2 can be adjusted according to different states of the hot water opened by a user, so that the phenomenon of water temperature drop is avoided, the aim of saving water is achieved, and the user experience is improved.
The embodiment also discloses a control method of the gas water heater.
Control method 1:
normally, the solenoid is energized, the valve element 2 is positioned away from the valve port 13, the valve port 13 is fully opened, the throttle valve 100 is not active, and the initial flow rate is normal. If the user opens the hot water tap (more than 2L/min considers the boiled water of the user) to close the hot water tap (less than 1L/min considers the water of the user) to finish the heat supply combustion once, the electric controller assembly 10 controls the electromagnetic coil to be powered down, and the valve core 2 immediately moves to shield the position of the valve port 13, so that the valve port 13 is closed. And record the time. (the following procedure sets the water-out state within 3min of water cut). (1) If the user turns on the hot water tap again within 3 minutes, at the initial stage of water re-discharge, water flow can only flow out through the throttle hole 221 on the valve cap 22 because the valve core 2 is positioned at the position of shielding the valve port 13, and the water flow rate is smaller. After the water flow sensor 101 detects that the flow is greater than 2/min, the gas water heater starts the ignition and fire transfer process, after the ignition and fire transfer process is finished, the electromagnetic coil is controlled to be electrified, the valve core 2 moves to a position far away from the valve port 13, the valve port 13 is completely opened, and the water inlet flow is recovered to be normal. (2) If the timing time is more than 3min, the electric controller assembly 10 controls the electromagnetic coil to be electrified, the valve core 2 moves to a position far away from the valve port 13, and the valve port 13 is completely opened. The gas water heater exits the control mode of water re-outlet and waits for normal boiled water of a user.
Except that throttling is performed during the re-water outlet process to achieve the scheme of relieving the re-water temperature drop. The water heater has the advantages that the water faucet can be throttled when a user opens the water faucet every time, so that cold water flowing out of the water faucet is greatly reduced (because the cold water flowing out of the water faucet is wasted when the user is many times) in the process of completing ignition and fire transmission of the gas water heater, and the purpose of saving water resources can be achieved.
Control method 2:
normally, the solenoid is not energized, the valve element 2 is in a position to shield the valve port 13, and the valve port 13 is closed. At this point the user opens the hot water tap and water can only initially flow out through the orifice 221 in the bonnet 22. After the gas water heater finishes the ignition and fire transfer processes, the electric controller assembly 10 immediately energizes the electromagnetic coil, the valve core 2 moves to a position far away from the valve port 13, and the valve port 13 is completely opened. The water inflow is recovered to be normal. The gas water heater carries out normal constant temperature combustion. When the user closes the hot water tap, after the water flow sensor 101 detects that the water flow is smaller than 1L/min, the electric controller assembly 10 immediately controls the electromagnetic coil to be powered off, and the valve core 2 moves to a position for shielding the valve port 13, so that the valve port 13 is closed and waits for the next water consumption of the user, and the aim of saving water is achieved.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (10)
1. A throttle valve, characterized in that it comprises:
the valve body is provided with a water inlet and a water outlet, and a valve port is arranged on a passage between the water inlet and the water outlet;
the valve core comprises a valve rod and a valve cap arranged at the end part of the valve rod, the valve core is arranged on the valve body in a sliding mode, the valve cap slides between shielding and opening the valve port, and an orifice smaller than the aperture of the valve port is arranged on the valve cap;
and a solenoid, the valve rod having magnetism, the solenoid being configured to drive the valve rod to slide upon energization.
2. The throttle valve according to claim 1, wherein the number of the throttle holes is plural, and a plurality of the throttle holes are arranged at intervals in a circumferential direction of the bonnet.
3. The throttle valve of claim 1, further comprising an elastic member having both ends connected to the valve body and the valve stem, respectively.
4. A throttle valve as claimed in any one of claims 1 to 3, wherein the valve body comprises a valve body and a mounting member detachably connected to the valve body, the valve body and the mounting member together forming a mounting passage, the valve stem being provided through and slidably disposed in the mounting passage.
5. The throttle valve of claim 4, wherein the solenoid is disposed within the mount.
6. The throttle valve of claim 4, further comprising an elastic member disposed in the mounting channel, both ends of the elastic member being connected to the valve stem and the mounting member, respectively.
7. The throttle valve as claimed in claim 4, wherein an end cap is installed at an inlet of the installation passage, and a communication hole is provided on the end cap, the communication hole being in communication with the installation passage.
8. The throttle valve of claim 4, wherein a first seal is disposed between the mount and the junction of the valve body.
9. The throttle valve of claim 4, wherein a second seal is disposed between the valve stem and an inner wall of the mounting member.
10. A gas water heater comprising a heat exchanger and a throttle valve according to any one of claims 1-9, said throttle valve being mounted on a water inlet line of said heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320230055.6U CN219263210U (en) | 2023-02-16 | 2023-02-16 | Throttle valve and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320230055.6U CN219263210U (en) | 2023-02-16 | 2023-02-16 | Throttle valve and gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219263210U true CN219263210U (en) | 2023-06-27 |
Family
ID=86853451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320230055.6U Active CN219263210U (en) | 2023-02-16 | 2023-02-16 | Throttle valve and gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219263210U (en) |
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2023
- 2023-02-16 CN CN202320230055.6U patent/CN219263210U/en active Active
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