CN110748675A - Multipurpose valve system for pressure-bearing water tank water heater - Google Patents
Multipurpose valve system for pressure-bearing water tank water heater Download PDFInfo
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- CN110748675A CN110748675A CN201911000911.3A CN201911000911A CN110748675A CN 110748675 A CN110748675 A CN 110748675A CN 201911000911 A CN201911000911 A CN 201911000911A CN 110748675 A CN110748675 A CN 110748675A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 229
- 238000007789 sealing Methods 0.000 claims description 69
- 230000009471 action Effects 0.000 claims description 11
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- 239000008399 tap water Substances 0.000 description 6
- 235000020679 tap water Nutrition 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009172 bursting Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/105—Three-way check or safety valves with two or more closure 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0473—Multiple-way safety valves
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/196—Equalising valves predominantly for tanks spring-loaded
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a multipurpose valve system for a pressure-bearing water tank water heater, which can ensure that the long-term pressure of a water tank is constant, and when the water tank is heated and the water expansion pressure in the water tank rises, the pressure of the rising part can be discharged into an external net. The multipurpose valve system is provided with a built-in one-way device, a built-in leakage device and a built-in suck-back device, wherein the built-in one-way device ensures that water flows to the water tank only under pressure, the built-in leakage device discharges water and releases pressure under the pressure exceeding the pressure born by the water tank and a pipe network, and the built-in suck-back device prevents the water tank from flowing into the pipe network to cause the water tank to lose pressure and suck flat after the water supply of the external network is cut.
Description
Technical Field
The invention relates to the field of valve control, in particular to a multipurpose valve system for a pressure-bearing water tank water heater.
Background
At present, water heaters in the market have a plurality of styles, most of the water heaters are pressure-bearing water heaters, and the inner containers of the water tanks are made of stainless steel or enamel. However, in the daily use of hot water, the water heater is repeatedly heated/cooled, the inside of the water tank is repeatedly expanded with heat and contracted with cold, and the liner is stressed and fatigued after long-term use, so that the service life is influenced.
The patent specification with the publication number of CN 101907188A discloses an automatic pressure increasing and decreasing valve for a pressure-bearing water tank of a water heater, wherein a direct current motor is connected with an electronic controller through a lead, the electronic controller is connected with a water valve water flow switch through a lead, an output shaft of the direct current motor is connected with a press cap below the direct current motor, the bottom of the press cap is provided with a press claw, the bottom of the press claw is provided with a ceramic plate with a groove connected with the press claw, the bottom of the ceramic plate with the groove is provided with four-hole ceramic plates, and the ceramic plate with the groove can rotate relative to the. Through the configuration, the pressure in the pressure-bearing water tank can be automatically regulated under the action of the electronic controller by the patent technology, and the purpose of automatic pressurization and pressure relief of the pressure-bearing water tank can be achieved, so that the service life of the water tank is prolonged.
The patent specification with publication number CN 101261048A discloses a pressure relief emptying system of a pressure-bearing solar water heater, which consists of a water tank, a water feeding pipe, a water discharging pipe, a multi-directional regulating valve, a one-way valve, a negative pressure valve and a water nozzle, wherein the multi-directional regulating valve is connected between the water nozzle and the water feeding pipe, and between the water discharging pipe and the water feeding pipe, and is provided with four interfaces which are respectively connected with the water feeding pipe, the water discharging pipe and the water nozzle; the water feeding pipe and the water discharging pipe are respectively connected with a water inlet and a water outlet of a water tank of the solar water heater, the water feeding pipe is provided with a one-way valve, and the water tank is provided with a negative pressure valve; the multi-directional regulating valve has an emptying function, and the multi-directional regulating valve is used for completing water feeding, water discharging and water emptying, so that the consumption of water pipes, joints and the like is reduced, the installation cost is reduced, the use is more convenient, the water emptying of the water discharging pipe is realized, and the conditions of freezing blockage and cold water discharging are reduced.
The above patent technology still needs to be adjusted manually to control the pressure relief and emptying of the water tank, and the self-adaptive adjustment of the valve according to the water pressure state in the water tank is not realized.
Disclosure of Invention
Aiming at the defects in the field, the invention provides a multipurpose valve system for a pressure-bearing water tank water heater, which can ensure that the long-term pressure of a water tank is constant, and when the water tank is heated and the expansion pressure of water in the water tank is increased, the pressure of the increased part can be discharged into an outer net. The multi-purpose valve system is provided with a built-in one-way device which ensures that water flows to the water tank only under pressure, a built-in leakage device which discharges water and releases pressure under the pressure exceeding the pressure born by the water tank and a pipe network, and a built-in suck-back device which prevents the water tank from flowing into the pipe network to cause the water tank to lose pressure and suck flat after the water supply of the external network is cut off.
A multi-purpose valve system for a pressure-containing tank water heater including a tank and an inlet conduit connected to an inlet of the tank, the multi-purpose valve system comprising:
the first limiting ring and the second limiting ring are fixed on the inner wall of the water inlet pipeline and sequentially arranged along the water inlet direction, and the joints of the first limiting ring and the second limiting ring and the inner wall of the water inlet pipeline are sealed;
the guide rod is nested with the first limiting ring and can axially move along the first limiting ring;
the valve rod is arranged along the axial direction of the water inlet pipeline, one end of the valve rod is fixedly connected with the guide rod, and the other end of the valve rod protrudes in the circumferential direction to form a first valve plate;
the sleeve is sleeved on the valve rod, can move along the valve rod and is limited by the first limiting ring and the second limiting ring, the diameter of one end, close to the first limiting ring, of the sleeve is reduced, the sleeve is sleeved with a first sealing ring, a groove is formed in the middle of one end, close to the second limiting ring, of the sleeve, and a second sealing ring is fixedly arranged on the side wall, close to the opening end, of the groove;
the inner leakage spring is sleeved on the valve rod and is positioned in the groove, one end of the inner leakage spring is abutted against the bottom of the groove, and the other end of the inner leakage spring is abutted against the first valve plate; and the first valve plate is tightly pressed on the second sealing ring under the pushing of the inner leakage spring.
The working process of the multipurpose valve system is as follows:
the water inlet process of the water tank: running water enters the multi-purpose valve system along the water inlet pipeline, and pushes the first sealing ring and the sleeve open under the action of running water pressure, and at the moment, the valve rod and the guide rod are further driven to axially move along the first limiting ring due to the pushing action of the internal leakage spring on the first valve plate; tap water continuously enters the water tank to smoothly complete water supplement. When the water supply of the external network is cut off, the water pressure of the water tank directly acts on the sleeve, the sleeve is pushed outwards to enable the first sealing ring to be extruded at the first limiting ring to realize sealing at the position, and therefore the water is prevented from flowing back to the external network.
And (3) internal pressure leakage process of the water tank: after the water tank is filled with water, the pressure in the water tank is the same as the pressure of the outer net, when a heating system in the water tank is started, water in the water tank is heated to expand, the sleeve is pushed outwards to extrude the first sealing ring at the position of the first limiting ring, and the sealing at the position is realized. The pressure of the internal relief spring can be set according to specific requirements, and the pressure of tap water is assumed to be 0.3Mpa, and the positive pressure of the internal relief spring is set to be 0.35 Mpa. After the water expansion, water tank pressure increases, and after pressure exceeded 0.35Mpa, just can open first valve block, made it and the separation of second sealing washer, first valve block drove valve rod and guide bar simultaneously and outwards removed along first spacing collar axial, and the surplus water of inflation gets into the recess, then directly gets into the outer net through the gap between sleeve, valve rod, the guide bar, guarantees the biggest 0.35Mpa of water tank pressure.
Preferably, the inner diameter of the groove is larger than the caliber of the top end of the groove, so that the second sealing ring can be limited, and the second sealing ring cannot be separated from the groove.
Preferably, the positive pressure of the internal leakage spring is set to be 0.3-0.35 MPa.
Preferably, the side of the water inlet pipeline is provided with an external leakage device, which comprises:
one end of the leakage pipeline is a water inlet end and is communicated with the side surface of the water inlet pipeline, the other end of the leakage pipeline is a sealing end, and a water outlet is formed in the side surface of the leakage pipeline;
the leakage rod is arranged in the leakage pipeline, one end of the leakage rod penetrates through the sealing end, extends out of the sealing end and then is inserted into the handle, and the other end of the leakage rod protrudes in the circumferential direction to form a second valve plate;
one end of the handle is hinged with the outer side of the sealing end and can be lifted to drive the leakage rod;
the third sealing ring is fixedly arranged on the inner wall of the leakage pipeline and is close to the water inlet end;
the leakage spring is sleeved on the leakage rod and positioned in the leakage pipeline, one end of the leakage spring is abutted against the inner side of the sealing end, and the other end of the leakage spring is abutted against the second valve plate; and under the pushing action of the leakage spring, the second valve sheet tightly presses the third sealing ring.
The leakage device is mainly used for the process of pressure leakage in the water tank: when the tap water pressure of the outer pipe network exceeds the maximum bearing pressure (assumed to be 0.75Mpa) of the pipe network and the water tank, the pressure exceeding 0.75Mpa is assumed to set the positive pressure of the leakage spring to be 0.75Mpa, the second valve plate is pushed open to be separated from the third sealing ring, meanwhile, the second valve plate drives the leakage rod to push the handle outwards, the handle rotates by taking the hinged part as a shaft, the excess water enters the leakage pipeline and is directly discharged from the drainage port, and therefore the water tank and the pipe network are protected, and burst is prevented.
The handle can be lifted manually, so that the leakage rod and the first valve plate are driven to leave the third sealing ring, water in the water tank and the water inlet pipeline enters the leakage pipeline, and finally the water is directly discharged from the water outlet.
Preferably, the inner diameter of the leakage pipeline is larger than the caliber of the water inlet end, so that the third sealing ring can be limited, and the third sealing ring is prevented from being separated from the leakage pipeline.
Preferably, the positive pressure of the leakage spring is set to be 0.7 to 0.75 MPa.
Preferably, the side of inlet channel still is equipped with suck-back device, includes:
one end of the back suction pipeline is communicated with the side surface of the water inlet pipeline, and the other end of the back suction pipeline is an air inlet end communicated with the atmosphere;
the fourth sealing ring is fixedly arranged on the inner wall of the back suction pipeline and is close to the air inlet end;
the pressure boosting spring is arranged in the back suction pipeline, one end of the pressure boosting spring is abutted against the outer surface of the side wall of the water inlet pipeline corresponding to the back suction pipeline, and the other end of the pressure boosting spring is abutted against the third valve plate; and under the pushing action of the pressurizing spring, the third valve plate tightly presses the fourth sealing ring.
The suck-back device is mainly used for the pressurization process of the pressure in the water tank: the position that outer net water pressure is less or multilayer house water tank dress is high, and the lower floor is with water consumption point water consumption big, and the moisturizing is not enough, easily causes the water tank to inhale the condition of flattening. After the negative pressure is formed in the water tank, the third valve plate is pushed open under the action of the atmospheric pressure and separated from the fourth sealing ring, air directly enters the water tank, the pressure of the water tank is ensured not to be reduced, the water tank is prevented from being sucked flat, and water in the water tank cannot flow out and lose due to the action of the negative pressure.
Preferably, the inner diameter of the suck-back pipeline is larger than the caliber of the air inlet end, so that the fourth sealing ring can be limited, and the fourth sealing ring can not be separated from the suck-back pipeline.
Compared with the prior art, the invention has the main advantages that:
(1) when the water tank is heated, the water expansion pressure in the water tank is increased, and the pressure of the increased part can be discharged into the outer net;
(2) the multi-purpose valve system is provided with a built-in one-way device which ensures that water flow only flows to the water tank under pressure;
(3) the multipurpose valve system is provided with a built-in overpressure pressure relief device, and is used for draining and relieving pressure under the condition that the pressure of the water tank and the pressure born by a pipe network are exceeded;
(4) the multipurpose valve system is provided with a built-in back suction device, and after the water supply of the external network is cut off, the water of the water tank is prevented from flowing into the pipe network to cause the decompression and the suction of the water tank to be flat.
Drawings
FIG. 1 is a schematic diagram of a multi-purpose valve system according to an embodiment, wherein:
a-one-way internal leakage device B-overpressure external leakage device C-suck-back device
D-water tank 1-guide rod 2-first sealing ring
3-valve rod 4-internal leakage spring 5-second sealing ring
6-first spacing ring 7-second spacing ring 8-first valve plate
9-handle 10-drainage opening 11-leakage spring
12-second valve plate 13-third sealing ring 14-pressurizing spring
15-third valve plate 16-fourth sealing ring 17-sleeve
18-leakage rod 19-water inlet pipeline 20-leakage pipeline
21-suck-back pipeline
Detailed Description
The invention is further described with reference to the following drawings and specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The following examples are conducted under conditions not specified, usually according to conventional conditions, or according to conditions recommended by the manufacturer.
The multipurpose valve system for a pressure-bearing water tank water heater of this embodiment, pressure-bearing water tank water heater includes water tank D and intake pipe 19 of being connected with water tank D water inlet, multipurpose valve system includes: a single-direction internal leakage device A, an overpressure external leakage device B and a suck-back device C.
In single-direction internal drainage device A located the inlet channel, let out spring 4, first sealing washer 2, valve rod 3, second sealing washer 5, first valve block 8 etc. in including first spacing collar 6, second spacing collar 7, guide bar 1, sleeve 17, in.
The first limiting ring 6 and the second limiting ring 7 are sequentially arranged along the water inlet direction and fixed on the inner wall of the water inlet pipeline 19, and the joint of the first limiting ring 6 and the second limiting ring 7 with the inner wall of the water inlet pipeline 19 is sealed.
The guide rod 1 is nested in the first limiting ring 6, can axially move along the first limiting ring 6, and is limited by two ends of the guide rod 1.
The guide rod 1 is provided with a valve rod 3 axially and fixedly arranged along the water inlet direction, and the free end of the valve rod 3 and the first valve plate 8 are integrally formed.
The sleeve 17 is sleeved on the valve rod 3, can move along the valve rod 3, and is limited by the first limiting ring 6 and the second limiting ring 7. One end of the sleeve 17 is abutted to the guide rod 1, and the diameter of the end is smaller than that of the sleeve body, so that the first sealing ring 2 is sleeved on the sleeve. A groove is formed in the middle of the other end of the sleeve 17, the inner diameter of the groove is matched with the diameter of the first valve plate 8, and the first valve plate 8 can freely move in the groove along the side wall of the groove. The inner diameter of the groove is larger than the caliber of the opening at the top end of the groove, and a second sealing ring 5 is fixedly arranged at the top in the groove.
The internal leakage spring 4 is sleeved on the valve rod 3 and is positioned in the groove, one end of the internal leakage spring 4 is fixed at the bottom of the groove, and the other end of the internal leakage spring is abutted against the first valve plate 8. The internal leakage spring 4 is in a compressed state, and the first valve plate 8 tightly presses the second sealing ring 5 under the pushing of the internal leakage spring 4. The internal relief spring 4 sets the positive pressure to 0.35 MPa.
The overpressure leakage device B is arranged on the side surface of the water inlet pipeline 19 and comprises: an external leakage pipeline 20, an external leakage rod 18, a handle 9, a third sealing ring 13, an external leakage spring 11, a second valve sheet 12 and the like.
One end of the leakage pipeline 20 is a water inlet end communicated with the side surface of the water inlet pipeline 19, the other end of the leakage pipeline is a sealing end, and the side surface of the leakage pipeline 20 is provided with a water outlet 10. The inner diameter of the leakage pipeline 20 is larger than the caliber of the water inlet end. The third sealing ring 13 is fixedly arranged in the leakage pipeline 20 and is positioned at the water inlet end.
The leakage rod 18 is disposed in the leakage pipe 20, and has one end penetrating the sealing end and extending out of the sealing end to be inserted into the handle 9, and is integrally formed with the second valve plate 12.
The leakage spring 11 is sleeved on the leakage rod 18 and located in the leakage pipe 20, one end of the leakage spring is fixed on the inner surface of the sealing end, and the other end of the leakage spring abuts against the second valve plate 12. The leakage spring 11 is in a compressed state, and the second valve plate 12 presses the third sealing ring 13 under the pushing of the leakage spring 11. The positive pressure of the leakage spring 11 is set to 0.75 MPa.
One end of the handle 9 is hinged with the outer surface of the sealing end, and the leakage rod 18 can be driven to leave the third sealing ring 13 when being lifted.
Suck-back device C locates the side of inlet channel 19 equally, includes: a suck-back pipeline 21, a fourth sealing ring 16, a pressurizing spring 14, a third valve piece 15 and the like.
One end of the back suction pipeline 21 is communicated with the side surface of the water inlet pipeline 19, and the other end is an air inlet end communicated with the atmosphere. The side wall of the water inlet pipeline 19 is provided with an opening at the joint with the back suction pipeline 21 for ventilation and water passing. The inner diameter of the back suction pipeline 21 is larger than the caliber of the air inlet end.
The fourth sealing ring 16 is fixedly arranged on the inner wall of the suck-back pipeline 21 close to the air inlet end.
The pressurizing spring 14 is arranged in the suck-back pipeline 21, one end of the pressurizing spring is fixed on the outer surface of the side wall of the water inlet pipeline 19 corresponding to the suck-back pipeline 20, and the other end of the pressurizing spring is fixedly connected with the third valve piece 15. The pressurizing spring 14 is in a compressed state, and the third valve plate 15 is tightly pressed on the fourth sealing ring 16 under the pushing of the pressurizing spring 14.
The working flow of the multi-purpose valve system of the present embodiment is as follows:
the function of the one-way internal drainage device A in the water inlet process of the water tank is as follows: running water enters the multi-purpose valve system along the water inlet pipeline 19, pushes the first sealing ring 2 and the sleeve 17 away under the action of running water pressure, and further drives the valve rod 3 and the guide rod 1 to axially move along the first limiting ring 6 due to the pushing action of the internal leakage spring 4 on the first valve plate 8; and the tap water continuously enters the water tank D to smoothly complete water replenishing. When the water supply of the external network is cut off, the water pressure of the water tank D directly acts on the sleeve 17, the sleeve 17 is pushed outwards to enable the first sealing ring 2 to be extruded at the first limiting ring 6 to realize sealing at the position, and therefore the water is prevented from flowing back to the external network.
The single-direction internal leakage device A has the following functions in the internal leakage process of the pressure in the water tank: after the water tank D is filled with water, the pressure in the water tank D is the same as the pressure of the outer net, when the heating system in the water tank D is started, the water in the water tank D is heated to expand, the sleeve 17 is pushed outwards to extrude the first sealing ring 2 at the first limiting ring 6, and the sealing at the position is realized. The tap water pressure was assumed to be 0.3Mpa, and the internal relief spring 4 set the positive pressure to 0.35 Mpa. After the water inflation, water tank D pressure increase, behind pressure exceedes 0.35Mpa, just can open first valve block 8 in the top, make it and the separation of second sealing washer 5, first valve block 8 drives valve rod 3 and guide bar 1 simultaneously and outwards moves along the 6 axial of first spacing collar, and the surplus water of inflation gets into the recess, then directly gets into the outer net through the gap between sleeve 17, valve rod 3, the guide bar 1, guarantees the biggest 0.35Mpa of water tank pressure.
The leakage device B is mainly used for the process of pressure leakage in the water tank: when the tap water pressure of the outer pipe network exceeds the maximum bearing pressure (assumed to be 0.75Mpa) of the pipe network and the water tank D, the positive pressure of the leakage spring 11 is set to be 0.75Mpa, the pressure exceeding 0.75Mpa pushes the second valve sheet 12 open to separate the second valve sheet from the third sealing ring 13, meanwhile, the second valve sheet 12 drives the leakage rod 18 to push the handle 9 outwards, the handle 9 rotates by taking the hinged part as a shaft, redundant water enters the leakage pipeline 20 and is directly discharged from the water discharge opening 10 finally, and therefore the water tank D and the pipe network are protected and prevented from bursting.
The leakage device B can also drive the leakage rod 18 and the first valve plate 12 to leave the third sealing ring 13 by manually lifting the handle 9, so that water enters the leakage pipeline 20 and is directly discharged from the water outlet 10.
The suck-back device C is mainly used for the pressurization process of the pressure in the water tank: the position that outer net water pressure is less or multilayer house water tank dress is high, and the lower floor is with water consumption point water consumption big, and the moisturizing is not enough, easily causes water tank D to inhale the condition of flat. After forming the negative pressure in the water tank D, under the effect of atmospheric pressure, third valve piece 15 is backed up, separates with fourth sealing washer 16, and in the air directly got into water tank D, it no longer reduced to ensure water tank D pressure, can not cause water tank D to be inhaled flatly, because the effect of negative pressure, the loss can not flow out yet in the water tank D in addition.
Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the above description of the present invention, and equivalents also fall within the scope of the invention as defined by the appended claims.
Claims (8)
1. A multipurpose valve system for a pressure-bearing water tank heater, the pressure-bearing water tank heater including a water tank and an inlet conduit connected to an inlet of the water tank, the multipurpose valve system comprising:
the first limiting ring and the second limiting ring are fixed on the inner wall of the water inlet pipeline and sequentially arranged along the water inlet direction, and the joints of the first limiting ring and the second limiting ring and the inner wall of the water inlet pipeline are sealed;
the guide rod is nested with the first limiting ring and can axially move along the first limiting ring;
the valve rod is arranged along the axial direction of the water inlet pipeline, one end of the valve rod is fixedly connected with the guide rod, and the other end of the valve rod protrudes in the circumferential direction to form a first valve plate;
the sleeve is sleeved on the valve rod, can move along the valve rod and is limited by the first limiting ring and the second limiting ring, the diameter of one end, close to the first limiting ring, of the sleeve is reduced, the sleeve is sleeved with a first sealing ring, a groove is formed in the middle of one end, close to the second limiting ring, of the sleeve, and a second sealing ring is fixedly arranged on the side wall, close to the opening end, of the groove;
the inner leakage spring is sleeved on the valve rod and is positioned in the groove, one end of the inner leakage spring is abutted against the bottom of the groove, and the other end of the inner leakage spring is abutted against the first valve plate; and the first valve plate is tightly pressed on the second sealing ring under the pushing of the inner leakage spring.
2. A multi-purpose valve system for a pressurized tank water heater as claimed in claim 1, wherein the groove inner diameter is greater than the groove tip caliber.
3. A multi-purpose valve system for a pressure tank water heater as claimed in claim 1, wherein the internal relief spring sets the positive pressure to 0.3-0.35 MPa.
4. A multi-purpose valve system for a pressurized water tank water heater as claimed in claim 1, wherein the side of the inlet pipe is provided with an external leakage device comprising:
one end of the leakage pipeline is a water inlet end and is communicated with the side surface of the water inlet pipeline, the other end of the leakage pipeline is a sealing end, and a water outlet is formed in the side surface of the leakage pipeline;
the leakage rod is arranged in the leakage pipeline, one end of the leakage rod penetrates through the sealing end, extends out of the sealing end and then is inserted into the handle, and the other end of the leakage rod protrudes in the circumferential direction to form a second valve plate;
one end of the handle is hinged with the outer side of the sealing end and can be lifted to drive the leakage rod;
the third sealing ring is fixedly arranged on the inner wall of the leakage pipeline and is close to the water inlet end;
the leakage spring is sleeved on the leakage rod and positioned in the leakage pipeline, one end of the leakage spring is abutted against the inner side of the sealing end, and the other end of the leakage spring is abutted against the second valve plate; and under the pushing action of the leakage spring, the second valve sheet tightly presses the third sealing ring.
5. A multi-purpose valve system for a pressurized tank water heater as claimed in claim 4, wherein the internal diameter of the leak pipe is larger than the diameter of the water inlet port.
6. A multipurpose valve system for a pressure tank water heater as claimed in claim 4, wherein the positive pressure set by the bleed spring is 0.7-0.75 MPa.
7. A multi-purpose valve system for a pressurized water tank water heater as claimed in claim 1, wherein the side of the inlet pipe is further provided with a back suction device comprising:
one end of the back suction pipeline is communicated with the side surface of the water inlet pipeline, and the other end of the back suction pipeline is an air inlet end communicated with the atmosphere;
the fourth sealing ring is fixedly arranged on the inner wall of the back suction pipeline and is close to the air inlet end;
the pressure boosting spring is arranged in the back suction pipeline, one end of the pressure boosting spring is abutted against the outer surface of the side wall of the water inlet pipeline corresponding to the back suction pipeline, and the other end of the pressure boosting spring is abutted against the third valve plate; and under the pushing action of the pressurizing spring, the third valve plate tightly presses the fourth sealing ring.
8. A multi-purpose valve system for a pressurized tank water heater as claimed in claim 1, wherein the internal diameter of the suck-back conduit is greater than the inlet port diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911000911.3A CN110748675B (en) | 2019-10-21 | 2019-10-21 | Multipurpose valve system for pressure-bearing water tank water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911000911.3A CN110748675B (en) | 2019-10-21 | 2019-10-21 | Multipurpose valve system for pressure-bearing water tank water heater |
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| CN110748675A true CN110748675A (en) | 2020-02-04 |
| CN110748675B CN110748675B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911000911.3A Active CN110748675B (en) | 2019-10-21 | 2019-10-21 | Multipurpose valve system for pressure-bearing water tank water heater |
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|---|---|---|---|---|
| GB761033A (en) * | 1954-11-26 | 1956-11-07 | Mine Safety Appliances Co | Improvements in or relating to a breathing apparatus valve |
| US3988000A (en) * | 1975-04-07 | 1976-10-26 | Dresser Industries, Inc. | Seals for a gas service butterfly valve |
| CN108131473A (en) * | 2018-01-31 | 2018-06-08 | 浙江神太太阳能股份有限公司 | The check valve of decompression function built in a kind of band |
| CN108980429A (en) * | 2018-10-20 | 2018-12-11 | 蒋琪峰 | A kind of safety relief anticreeper of water heater |
| CN209294481U (en) * | 2018-12-26 | 2019-08-23 | 台州旭升卫浴有限公司 | A kind of water heater automatic switch and pressure relief safety valve |
| CN211039794U (en) * | 2019-10-21 | 2020-07-17 | 杭州鸿雁管道***科技有限公司 | Multipurpose valve system for pressure-bearing water tank water heater |
-
2019
- 2019-10-21 CN CN201911000911.3A patent/CN110748675B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB761033A (en) * | 1954-11-26 | 1956-11-07 | Mine Safety Appliances Co | Improvements in or relating to a breathing apparatus valve |
| US3988000A (en) * | 1975-04-07 | 1976-10-26 | Dresser Industries, Inc. | Seals for a gas service butterfly valve |
| CN108131473A (en) * | 2018-01-31 | 2018-06-08 | 浙江神太太阳能股份有限公司 | The check valve of decompression function built in a kind of band |
| CN108980429A (en) * | 2018-10-20 | 2018-12-11 | 蒋琪峰 | A kind of safety relief anticreeper of water heater |
| CN209294481U (en) * | 2018-12-26 | 2019-08-23 | 台州旭升卫浴有限公司 | A kind of water heater automatic switch and pressure relief safety valve |
| CN211039794U (en) * | 2019-10-21 | 2020-07-17 | 杭州鸿雁管道***科技有限公司 | Multipurpose valve system for pressure-bearing water tank water heater |
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| CN110748675B (en) | 2024-05-03 |
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