CN108730608B - Safety valve for hot water supply system and working method thereof - Google Patents
Safety valve for hot water supply system and working method thereof Download PDFInfo
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- CN108730608B CN108730608B CN201810671057.2A CN201810671057A CN108730608B CN 108730608 B CN108730608 B CN 108730608B CN 201810671057 A CN201810671057 A CN 201810671057A CN 108730608 B CN108730608 B CN 108730608B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 279
- 238000000034 method Methods 0.000 title claims description 10
- 238000007789 sealing Methods 0.000 claims description 26
- 238000003780 insertion Methods 0.000 claims description 19
- 230000037431 insertion Effects 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 238000005086 pumping Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
Abstract
The invention discloses a safety valve for a hot water supply system, which comprises a valve body and a valve core, wherein a water inlet pipe for flowing hot water is arranged on a water inlet of the valve body, the water inlet pipe is communicated with the valve body, the water inlet pipe is connected with the valve body through a bolt, the water outlet of the valve body is provided with a water outlet pipe, the water outlet pipe is communicated with the valve body, the water outlet pipe is connected with the valve body through a bolt, a valve seat is arranged in the valve body, the valve seat is fixedly connected with the valve body, a lower cavity is formed below the valve seat, an upper cavity is formed above the valve seat, the valve core is provided with a valve rod which is fixedly connected with the valve core, the valve body is provided with a fixed frame, the fixing frame is fixedly connected with the valve body, the valve rod is fixedly connected with the fixing frame, the electric push rod is arranged on the valve rod, a piston rod of the electric push rod is fixedly connected with a valve rod, and a control device is arranged on the right side of the fixing frame; the safety valve for the hot water supply system can effectively close the valve when hot water is overheated.
Description
Technical Field
The invention relates to a safety valve for a hot water supply system and a working method thereof.
Background
The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems.
The hot water supply system is a water supply system which ensures that a user can obtain hot water with water quantity, water temperature, water pressure and water quality which meet the design requirements on time.
However, there are many kinds of existing valves, but the existing valves do not have a thermal protection function, and when hot water is overheated, users are easily scalded.
Disclosure of Invention
The invention aims to provide a safety valve for a hot water supply system, which can effectively close the valve when hot water is overheated, and a working method thereof.
In order to solve the problems, the invention adopts the following technical scheme:
a safety valve for a hot water supply system comprises a valve body and a valve core, wherein a water inlet pipe for flowing hot water is arranged on a water inlet of the valve body, the water inlet pipe is communicated with the valve body, the water inlet pipe is connected with a bolt of the valve body, a water outlet pipe is arranged on a water outlet of the valve body, the water outlet pipe is communicated with the valve body, the water outlet pipe is connected with the bolt of the valve body, a valve seat is arranged in the valve body and is fixedly connected with the valve body, a lower cavity is formed below the valve seat, an upper cavity is formed above the valve seat, a valve rod is arranged on the valve core and is fixedly connected with the valve core, a fixing frame is arranged on the valve body and is fixedly connected with the valve body, the valve rod is fixedly connected with the fixing frame, an electric push rod is arranged above the valve, the control device is fixedly connected with the fixing frame, the water inlet pipe is provided with a temperature sensor, the temperature sensor is fixedly connected with the water inlet pipe, and the electric push rod and the temperature sensor are both electrically connected with the control device.
Preferably, the valve core is provided with a first rubber sealing ring, the valve core is wrapped by the first rubber sealing ring, the first rubber sealing ring is connected with the valve core in an adhesion mode, the water inlet pipe and the water outlet pipe are provided with second rubber sealing rings, and the water inlet pipe and the water outlet pipe are connected with the second rubber sealing rings on the water inlet pipe and the water outlet pipe in an adhesion mode. Through being provided with first rubber seal and second rubber seal, the delivery port of disk seat can effectively be plugged to first rubber seal, and the gap of inlet tube and the position that the outlet pipe links to each other with the valve body can effectively be plugged to second rubber seal.
Preferably, a limiting column is arranged below the valve core, overflow holes are formed in the limiting column and distributed at equal intervals, the limiting column is fixedly connected with the valve core, a sealing seat is arranged below the valve body and fixedly connected with the valve body, an insertion groove matched with the limiting column is formed in the sealing seat, and the limiting column is movably connected with the sealing seat through the insertion groove. The limiting column can effectively block hot water, prevent the hot water from flowing too fast and being arranged, and divide the lower cavity into two parts.
Preferably, a pressure sensor is arranged in the insertion groove, the pressure sensor is fixedly connected with the insertion groove, and the pressure sensor is electrically connected with the control device. The pressure sensor detects the pressure applied by the limiting column and feeds back the pressure to the control device, so that the damage to the valve core and the valve seat caused by the overlarge thrust of the electric push rod is effectively prevented.
Preferably, a cold water tank is arranged on the right side of the valve body and connected with the valve body through bolts, a water pipe is arranged on the cold water tank and penetrates through the valve body, two ends of the water pipe are respectively communicated with the cold water tank and the lower cavity, the water pipe is connected with the cold water tank through bolts, a water suction pump is arranged on the water pipe and fixedly connected with the water pipe, and the water suction pump is electrically connected with the control device. The temperature of the hot water is reduced by pumping cold water into the lower cavity to mix with the hot water through the overflow holes.
Preferably, a liquid level sensor is arranged in the cold water tank, the liquid level sensor is fixedly connected with the cold water tank, and the liquid level sensor is electrically connected with the control device. The liquid level sensor can effectively detect the water level condition of the cold water tank.
Preferably, a warning light is arranged on the valve body and fixedly connected with the valve body, and the warning light is electrically connected with the control device. When the water level in the cold water tank is lower than a set value, the warning lamp flickers.
Preferably, a water injection pipe is arranged on the cold water tank, the water injection pipe is communicated with the cold water tank, and the water injection pipe is fixedly connected with the cold water tank. When the water level in the cold water tank is insufficient, water can be added into the cold water tank through the water injection pipe.
The invention provides a working method of a safety valve for a hot water supply system, which comprises the following steps:
1) when hot water flows into the valve body from the water inlet pipe, the temperature sensor in the water inlet pipe can detect the temperature of the hot water and feed back the temperature to the control device;
2) when the temperature of hot water exceeds 45 ℃, the control device starts the electric push rod to push the valve rod, so that the valve core plugs the water outlet of the valve seat;
3) in the process that the electric push rod pushes the valve rod, after the pressure sensor detects the pressure applied to the valve rod by the limiting column, the information is fed back to the control device, and the control device stops operating the electric push rod;
4) the control unit then activates the pump to pump cold water into the lower chamber to mix with the hot water to reduce the temperature of the hot water.
The invention has the beneficial effects that: through being provided with case, valve rod, electric putter and temperature sensor, when temperature sensor detected hot water and is overheated, thereby controlling means control electric putter pushed the valve rod and made the case plug the runner of disk seat, closed the valve, effectively prevented hot water outflow. In addition, be provided with first rubber seal on the case, first rubber seal wraps up the case, and first rubber seal is connected with case bonding, is provided with second rubber seal on inlet tube and the outlet pipe, and inlet tube and outlet pipe all are rather than second rubber seal bonding connection on separately. Through being provided with first rubber seal and second rubber seal, the delivery port of disk seat can effectively be plugged to first rubber seal, and the gap of inlet tube and the position that the outlet pipe links to each other with the valve body can effectively be plugged to second rubber seal. Be provided with spacing post below the case, be provided with the overflow hole on the spacing post, the overflow hole is equidistant distribution, spacing post and case fixed connection, be provided with the seal receptacle below the valve body, the seal receptacle is the setting of U type form, seal receptacle and valve body fixed connection are provided with the insertion groove of mating with spacing post on the seal receptacle, spacing post passes through insertion groove and seal receptacle swing joint. The limiting column can effectively block hot water, prevent the hot water from flowing too fast and being arranged, and divide the lower cavity into two parts. And a pressure sensor is arranged in the insertion groove, the pressure sensor is fixedly connected with the insertion groove, and the pressure sensor is electrically connected with the control device. The pressure sensor detects the pressure applied by the limiting column and feeds back the pressure to the control device, so that the damage to the valve core and the valve seat caused by the overlarge thrust of the electric push rod is effectively prevented. The valve body right side is provided with the cold water storage cistern, and cold water storage cistern and valve body bolted connection are provided with the water pipe on the cold water storage cistern, and the water pipe runs through the valve body setting, and the water pipe both ends communicate with cold water storage cistern and lower cavity respectively, and water pipe and cold water storage cistern bolted connection are provided with the suction pump on the water pipe, suction pump and water pipe fixed connection, suction pump and controlling means electric connection. The temperature of the hot water is reduced by pumping cold water into the lower cavity to mix with the hot water through the overflow holes. Be provided with level sensor in the cold water storage cistern, level sensor and cold water storage cistern fixed connection, level sensor and controlling means electric connection. The liquid level sensor can effectively detect the water level condition of the cold water tank. Be provided with the warning light on the valve body, warning light and valve body fixed connection, warning light and controlling means electric connection. When the water level in the cold water tank is lower than a set value, the warning lamp flickers. The cold water tank is provided with a water injection pipe which is communicated with the cold water tank and fixedly connected with the cold water tank. When the water level in the cold water tank is insufficient, water can be added into the cold water tank through the water injection pipe.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a sectional view of a safety valve for a hot water supply system according to the present invention.
Fig. 2 is a partial sectional view of a cartridge of a safety valve for a hot water supply system according to the present invention.
Fig. 3 is a perspective view of a stopper post of a safety valve for a hot water supply system according to the present invention.
In the figure: 1. a valve body; 2. a valve core; 3. a water inlet pipe; 4. a water outlet pipe; 5. a valve seat; 6. a lower cavity; 7. an upper cavity; 8. a valve stem; 9. a fixed mount; 10. an electric push rod; 11. a control device; 12. a temperature sensor; 13. a first rubber seal ring; 14. a second rubber seal ring; 15. a limiting column; 16. an overflow aperture; 17. a sealing seat; 18. inserting the groove; 19. a pressure sensor; 20. a cold water tank; 21. a water pipe; 22. a water pump; 23. a liquid level sensor; 24. a warning light; 25. a water injection pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the embodiments, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience in describing the present invention, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.
In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a conventional manner such as bolt fixing, pin shaft connecting, adhesive fixing, or rivet fixing, which is commonly used in the prior art, and therefore, the detailed description thereof will not be provided in the examples.
Example 1
As shown in fig. 1, a safety valve for a hot water supply system comprises a valve body 1 and a valve core 2, wherein a water inlet pipe 3 for flowing hot water is arranged on a water inlet of the valve body 1, the water inlet pipe 3 is communicated with the valve body 1, the water inlet pipe 3 is connected with the valve body 1 by a bolt, a water outlet pipe 4 is arranged on a water outlet of the valve body 1, the water outlet pipe 4 is communicated with the valve body 1, the water outlet pipe 4 is connected with the valve body 1 by a bolt, a valve seat 5 is arranged in the valve body 1, the valve seat 5 is fixedly connected with the valve body 1, a lower cavity 6 is formed below the valve seat 5, an upper cavity 7 is formed above the valve seat 5, a valve rod 8 is arranged on the valve core 2, the valve rod 8 is fixedly connected with the valve core 2, a fixing frame 9 is arranged on the valve body 1, be provided with electric putter 10 above the valve rod 8, electric putter 10's piston rod and valve rod 8 fixed connection, 9 right sides of mount are provided with controlling means 11, controlling means 11 and 9 fixed connection of mount, be provided with temperature sensor 12 on the inlet tube 3, temperature sensor 12 and 3 fixed connection of inlet tube, electric putter 10 and temperature sensor 12 all with controlling means 11 electric connection. Through being provided with case, valve rod, electric putter and temperature sensor, when temperature sensor detected hot water and is overheated, thereby controlling means control electric putter pushed the valve rod and made the case plug the runner of disk seat, closed the valve, effectively prevented hot water outflow.
The beneficial effect of this embodiment does: through being provided with case, valve rod, electric putter and temperature sensor, when temperature sensor detected hot water and is overheated, thereby controlling means control electric putter pushed the valve rod and made the case plug the runner of disk seat, closed the valve, effectively prevented hot water outflow.
Example 2
As shown in fig. 1-3, a safety valve for a hot water supply system comprises a valve body 1 and a valve core 2, wherein a water inlet pipe 3 for hot water to flow in is arranged on a water inlet of the valve body 1, the water inlet pipe 3 is communicated with the valve body 1, the water inlet pipe 3 is connected with the valve body 1 by a bolt, a water outlet pipe 4 is arranged on a water outlet of the valve body 1, the water outlet pipe 4 is communicated with the valve body 1, the water outlet pipe 4 is connected with the valve body 1 by a bolt, a valve seat 5 is arranged in the valve body 1, the valve seat 5 is fixedly connected with the valve body 1, a lower cavity 6 is formed below the valve seat 5, an upper cavity 7 is formed above the valve seat 5, a valve rod 8 is arranged on the valve core 2, the valve rod 8 is fixedly connected with the valve core 2, a fixing frame 9 is arranged on the valve body, be provided with electric putter 10 above the valve rod 8, electric putter 10's piston rod and valve rod 8 fixed connection, 9 right sides of mount are provided with controlling means 11, controlling means 11 and 9 fixed connection of mount, be provided with temperature sensor 12 on the inlet tube 3, temperature sensor 12 and 3 fixed connection of inlet tube, electric putter 10 and temperature sensor 12 all with controlling means 11 electric connection. Through being provided with case, valve rod, electric putter and temperature sensor, when temperature sensor detected hot water and is overheated, thereby controlling means control electric putter pushed the valve rod and made the case plug the runner of disk seat, closed the valve, effectively prevented hot water outflow.
The water inlet pipe is characterized in that a first rubber sealing ring 13 is arranged on the valve core 2, the valve core 2 is wrapped by the first rubber sealing ring 13, the first rubber sealing ring 13 is connected with the valve core 2 in an adhesion mode, second rubber sealing rings 14 are arranged on the water inlet pipe 3 and the water outlet pipe 4, and the water inlet pipe 3 and the water outlet pipe 4 are connected with the second rubber sealing rings 14 on the water inlet pipe 3 and the water outlet pipe 4 in an adhesion mode. Through being provided with first rubber seal and second rubber seal, the delivery port of disk seat can effectively be plugged to first rubber seal, and the gap of inlet tube and the position that the outlet pipe links to each other with the valve body can effectively be plugged to second rubber seal.
The valve comprises a valve body 1 and is characterized in that a limiting column 15 is arranged below the valve core 2, overflow holes 16 are arranged on the limiting column 15, the overflow holes 16 are distributed at equal intervals, the limiting column 15 is fixedly connected with the valve core 2, a sealing seat 17 is arranged below the valve body 1, the sealing seat 17 is fixedly connected with the valve body 1, an insertion groove 18 matched with the limiting column is formed in the sealing seat 17, and the limiting column 15 is movably connected with the sealing seat 17 through the insertion groove 18. The limiting column can effectively block hot water, prevent the hot water from flowing too fast and being arranged, and divide the lower cavity into two parts.
A pressure sensor 19 is arranged in the insertion groove 18, the pressure sensor 19 is fixedly connected with the insertion groove 18, and the pressure sensor 19 is electrically connected with the control device 11. The pressure sensor detects the pressure applied by the limiting column and feeds back the pressure to the control device, so that the damage to the valve core and the valve seat caused by the overlarge thrust of the electric push rod is effectively prevented.
1 right side of valve body is provided with cold water storage cistern 20, cold water storage cistern 20 and 1 bolted connection of valve body, be provided with water pipe 21 on the cold water storage cistern 20, water pipe 21 runs through the setting of valve body 1, water pipe 21 both ends are linked together with cold water storage cistern 20 and lower cavity 6 respectively, water pipe 21 and 20 bolted connection of cold water storage cistern, be provided with suction pump 22 on the water pipe 21, suction pump 22 and water pipe 21 fixed connection, suction pump 22 and 11 electric connection of controlling means. The temperature of the hot water is reduced by pumping cold water into the lower cavity to mix with the hot water through the overflow holes.
Be provided with level sensor 23 in the cold water storage cistern 20, level sensor 23 and cold water storage cistern 20 fixed connection, level sensor 23 and controlling means 11 electric connection. The liquid level sensor can effectively detect the water level condition of the cold water tank.
Be provided with warning light 24 on the valve body 1, warning light 24 and valve body 1 fixed connection, warning light 24 and controlling means 11 electric connection. When the water level in the cold water tank is lower than a set value, the warning lamp flickers.
The water injection device is characterized in that a water injection pipe 25 is arranged on the cold water tank 20, the water injection pipe 25 is communicated with the cold water tank 20, and the water injection pipe 25 is fixedly connected with the cold water tank 20. When the water level in the cold water tank is insufficient, water can be added into the cold water tank through the water injection pipe.
The beneficial effect of this embodiment does: through being provided with case, valve rod, electric putter and temperature sensor, when temperature sensor detected hot water and is overheated, thereby controlling means control electric putter pushed the valve rod and made the case plug the runner of disk seat, closed the valve, effectively prevented hot water outflow. In addition, be provided with first rubber seal on the case, first rubber seal wraps up the case, and first rubber seal is connected with case bonding, is provided with second rubber seal on inlet tube and the outlet pipe, and inlet tube and outlet pipe all are rather than second rubber seal bonding connection on separately. Through being provided with first rubber seal and second rubber seal, the delivery port of disk seat can effectively be plugged to first rubber seal, and the gap of inlet tube and the position that the outlet pipe links to each other with the valve body can effectively be plugged to second rubber seal. Be provided with spacing post below the case, be provided with the overflow hole on the spacing post, the overflow hole is equidistant distribution, spacing post and case fixed connection, be provided with the seal receptacle below the valve body, the seal receptacle is the setting of U type form, seal receptacle and valve body fixed connection are provided with the insertion groove of mating with spacing post on the seal receptacle, spacing post passes through insertion groove and seal receptacle swing joint. The limiting column can effectively block hot water, prevent the hot water from flowing too fast and being arranged, and divide the lower cavity into two parts. And a pressure sensor is arranged in the insertion groove, the pressure sensor is fixedly connected with the insertion groove, and the pressure sensor is electrically connected with the control device. The pressure sensor detects the pressure applied by the limiting column and feeds back the pressure to the control device, so that the damage to the valve core and the valve seat caused by the overlarge thrust of the electric push rod is effectively prevented. The valve body right side is provided with the cold water storage cistern, and cold water storage cistern and valve body bolted connection are provided with the water pipe on the cold water storage cistern, and the water pipe runs through the valve body setting, and the water pipe both ends communicate with cold water storage cistern and lower cavity respectively, and water pipe and cold water storage cistern bolted connection are provided with the suction pump on the water pipe, suction pump and water pipe fixed connection, suction pump and controlling means electric connection. The temperature of the hot water is reduced by pumping cold water into the lower cavity to mix with the hot water through the overflow holes. Be provided with level sensor in the cold water storage cistern, level sensor and cold water storage cistern fixed connection, level sensor and controlling means electric connection. The liquid level sensor can effectively detect the water level condition of the cold water tank. Be provided with the warning light on the valve body, warning light and valve body fixed connection, warning light and controlling means electric connection. When the water level in the cold water tank is lower than a set value, the warning lamp flickers. The cold water tank is provided with a water injection pipe which is communicated with the cold water tank and fixedly connected with the cold water tank. When the water level in the cold water tank is insufficient, water can be added into the cold water tank through the water injection pipe.
The invention provides a working method of a safety valve for a hot water supply system, which comprises the following steps:
1) when hot water flows into the valve body from the water inlet pipe, the temperature sensor in the water inlet pipe can detect the temperature of the hot water and feed back the temperature to the control device;
2) when the temperature of hot water exceeds 45 ℃, the control device starts the electric push rod to push the valve rod, so that the valve core plugs the water outlet of the valve seat;
3) in the process that the electric push rod pushes the valve rod, after the pressure sensor detects the pressure applied to the valve rod by the limiting column, the information is fed back to the control device, and the control device stops operating the electric push rod;
4) the control unit then activates the pump to pump cold water into the lower chamber to mix with the hot water to reduce the temperature of the hot water.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention.
Claims (1)
1. A safety valve for a hot water supply system, characterized in that: the water inlet of the valve body is provided with a water inlet pipe for flowing hot water, the water inlet pipe is communicated with the valve body, the water inlet pipe is connected with the valve body through a bolt, the water outlet of the valve body is provided with a water outlet pipe, the water outlet pipe is communicated with the valve body, the water outlet pipe is connected with the valve body through a bolt, a valve seat is arranged in the valve body and fixedly connected with the valve body, a lower cavity is formed below the valve seat, an upper cavity is formed above the valve seat, a valve rod is arranged on the valve seat and fixedly connected with the valve core, a fixing frame is arranged on the valve body and fixedly connected with the valve body, the valve rod is fixedly connected with the fixing frame, an electric push rod is arranged above the valve rod, a piston rod of the electric push rod is fixedly connected with the valve rod, a control device, the water inlet pipe is provided with a temperature sensor which is fixedly connected with the water inlet pipe, the electric push rod and the temperature sensor are both electrically connected with a control device, the valve core is provided with a first rubber sealing ring, the first rubber sealing ring wraps the valve core, the first rubber sealing ring is connected with the valve core in an adhesion way, the water inlet pipe and the water outlet pipe are provided with second rubber sealing rings, the water inlet pipe and the water outlet pipe are both connected with the second rubber sealing rings on the water inlet pipe and the water outlet pipe in an adhesion way, a limiting post is arranged under the valve core, overflow holes are arranged on the limiting post and distributed at equal intervals, the limiting post is fixedly connected with the valve core, a sealing seat is arranged under the valve body and is fixedly connected with the valve body, an insertion groove matched with the limiting post is arranged on the sealing seat, and the limiting post is movably connected with the sealing seat, the pressure sensor is arranged in the insertion groove and fixedly connected with the insertion groove, the pressure sensor is electrically connected with the control device, the cold water tank is arranged on the right side of the valve body and is connected with the valve body through a bolt, a water pipe is arranged on the cold water tank and penetrates through the valve body, two ends of the water pipe are respectively communicated with the cold water tank and the lower cavity, the water pipe is connected with the cold water tank through a bolt, a water suction pump is arranged on the water pipe and is fixedly connected with the water pipe, the water suction pump is electrically connected with the control device, a liquid level sensor is arranged in the cold water tank and is fixedly connected with the cold water tank, the liquid level sensor is electrically connected with the control device, a warning lamp is arranged on the valve body and is fixedly connected with the valve body, and the warning lamp is electrically connected with the control device, the working method of the safety valve for the hot water supply system is characterized by comprising the following steps:
1) when hot water flows into the valve body from the water inlet pipe, the temperature sensor in the water inlet pipe can detect the temperature of the hot water and feed back the temperature to the control device;
2) when the temperature of hot water exceeds 45 ℃, the control device starts the electric push rod to push the valve rod, so that the valve core plugs the water outlet of the valve seat;
3) in the process that the electric push rod pushes the valve rod, after the pressure sensor detects the pressure applied to the valve rod by the limiting column, the information is fed back to the control device, and the control device stops operating the electric push rod;
4) the control unit then activates the pump to pump cold water into the lower chamber to mix with the hot water to reduce the temperature of the hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810671057.2A CN108730608B (en) | 2018-06-26 | 2018-06-26 | Safety valve for hot water supply system and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810671057.2A CN108730608B (en) | 2018-06-26 | 2018-06-26 | Safety valve for hot water supply system and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730608A CN108730608A (en) | 2018-11-02 |
| CN108730608B true CN108730608B (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810671057.2A Active CN108730608B (en) | 2018-06-26 | 2018-06-26 | Safety valve for hot water supply system and working method thereof |
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| CN (1) | CN108730608B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113418015B (en) * | 2021-08-23 | 2021-11-05 | 徐州市海涛制冷设备有限公司 | Refrigeration valve with locking protection mechanism |
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| JP2006243932A (en) * | 2005-03-01 | 2006-09-14 | Ideal Star Inc | Control valve and piping unit therewith |
| CN202132512U (en) * | 2011-07-04 | 2012-02-01 | 陈先杰 | Valve with pump |
| CN206555467U (en) * | 2017-01-18 | 2017-10-13 | 安徽巨龙泵阀有限公司 | A kind of helixseal formula stop valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7717351B2 (en) * | 2001-08-24 | 2010-05-18 | Margarl, LLC | Mixing valve |
| CN103090094A (en) * | 2013-01-28 | 2013-05-08 | 苏州宇东暖通技术有限公司 | Overheating protecting valve |
| CN204647531U (en) * | 2015-05-06 | 2015-09-16 | 天津中电天仪科技有限公司 | The small-sized modulating valve of a kind of novel wear resistant high temperature resistance essence |
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2018
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| CN2155484Y (en) * | 1992-12-11 | 1994-02-09 | 汪祖慧 | Pressure transducer controlled valve electric-operating means |
| CN2531178Y (en) * | 2001-10-26 | 2003-01-15 | 马有江 | Tem.-control stop valve |
| JP2006243932A (en) * | 2005-03-01 | 2006-09-14 | Ideal Star Inc | Control valve and piping unit therewith |
| CN202132512U (en) * | 2011-07-04 | 2012-02-01 | 陈先杰 | Valve with pump |
| CN206555467U (en) * | 2017-01-18 | 2017-10-13 | 安徽巨龙泵阀有限公司 | A kind of helixseal formula stop valve |
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| CN108730608A (en) | 2018-11-02 |
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Effective date of registration: 20200316 Address after: 325100 Baoyi street, Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province Applicant after: TIANZHENG VALVE Co.,Ltd. Address before: 241000 room 1501, block B, Huijin Plaza, Jinghu District, Wuhu, Anhui. Applicant before: WUHU YUYOU MACHINERY TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A safety valve and its working method for a hot water supply system Effective date of registration: 20231202 Granted publication date: 20200407 Pledgee: Industrial and Commercial Bank of China Limited Yongjia sub branch Pledgor: TIANZHENG VALVE Co.,Ltd. Registration number: Y2023330002933 |
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