CN109425096B - Water heater - Google Patents
Water heater Download PDFInfo
- Publication number
- CN109425096B CN109425096B CN201710774959.4A CN201710774959A CN109425096B CN 109425096 B CN109425096 B CN 109425096B CN 201710774959 A CN201710774959 A CN 201710774959A CN 109425096 B CN109425096 B CN 109425096B
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- water
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- flow
- water inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 235
- 239000012188 paraffin wax Substances 0.000 claims abstract description 32
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 22
- 230000008859 change Effects 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000011540 sensing material Substances 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
- F24H9/0015—Guiding means in water channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Abstract
The invention discloses a water heater, comprising: the shell is provided with a water inlet and a water outlet; the heat exchanger is arranged in the shell; the burner is used for heating the heat exchanger and is arranged in the shell; the flow stabilizing component is arranged at the water inlet and used for adjusting the water flow entering the water inlet according to the water pressure at the water inlet; temperature-sensing valve, temperature-sensing valve includes: the valve body is connected between the heat exchanger and the water inlet and is provided with a valve body inlet and a valve body outlet; and the paraffin temperature sensing assembly is used for controlling the opening degree of the valve body outlet according to the change of the ambient temperature. According to the water heater provided by the embodiment of the invention, the steady flow component and the temperature control valve are arranged at the water inlet, so that the water heater can automatically control the water inlet flow from the source according to the difference of the water inlet temperature and the water inlet pressure, and the water heater can achieve an ideal water outlet effect no matter the water inlet temperature and the water inlet pressure, namely, the water outlet temperature is proper and constant, the water flow is stable, and the user experience is good.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a water heater.
Background
In the related art, the water heater is controlled by adopting a stepping motor type water proportional valve, a memory alloy type water proportional valve or a manual knob opening type regulating valve to control the water inflow. When the stepping motor type water proportional valve regulates water flow, water temperature fluctuation is obvious, reaction time is overlong, water flow jumping is unstable when the memory alloy type water proportional valve regulates, manual knob opening type knob valve regulation is not accurate enough, and an improvement space exists.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the water heater which has good stability of water flow and temperature.
To achieve the above object, according to an embodiment of the present invention, there is provided a water heater including: the shell is provided with a water inlet and a water outlet; the heat exchanger is arranged in the shell; a burner for heating the heat exchanger, the burner being disposed within the housing; the steady flow assembly is arranged at the water inlet and used for adjusting the water flow entering the water inlet according to the water pressure at the water inlet; a thermo valve, the thermo valve comprising: the valve body is connected between the heat exchanger and the water inlet and is provided with a valve body inlet and a valve body outlet; and the paraffin temperature sensing assembly is used for controlling the opening of the valve body outlet according to the change of the ambient temperature.
According to the water heater provided by the embodiment of the invention, the steady flow component and the temperature control valve are arranged at the water inlet of the water heater, so that the water inlet flow of the water heater can be automatically controlled from the source according to the difference of the water inlet temperature and the water inlet pressure, and the water heater can achieve an ideal water outlet effect no matter the water inlet temperature and the water inlet pressure, namely, the water outlet temperature is proper and constant, the water flow is stable, and the user experience is good.
In addition, a according to the above embodiment of the present invention may have the following additional technical features:
according to the water heater of the embodiment of the invention, the paraffin temperature sensing assembly comprises: the temperature sensing bag is arranged in the valve body, a containing cavity is formed in the temperature sensing bag, a push rod mounting hole facing to the outlet of the valve body is formed in the temperature sensing bag, and paraffin temperature sensing materials are filled in the containing cavity; the push rod is matched in the push rod mounting hole in a relatively movable manner along the axial direction; one end of the travel rod is connected with the push rod, the other end of the travel rod is provided with a flow limiting plug, the push rod is driven by the deformation force of the paraffin temperature sensing material, pushing the travel rod to drive the flow limiting plug to move relative to the valve body outlet so as to control the opening of the valve body outlet.
Further, the valve further comprises an elastic piece, wherein the elastic piece is arranged in the valve body and drives the travel rod to drive the flow limiting plug to move towards the direction of reducing the opening of the outlet of the valve body.
Specifically, the elastic piece is a pressure spring, a positioning ring table is arranged on the outer peripheral surface of the travel rod, the pressure spring is sleeved outside the travel rod, and two ends of the pressure spring are respectively stopped against the positioning ring table and the inner end surface of one end of the valve body where the valve body outlet is located.
Optionally, the valve body outlet is a tapered hole with a cross-sectional area gradually increasing from inside to outside, and the flow limiting plug is matched with the shape of the valve body outlet.
Optionally, a mounting ring is arranged on the inner peripheral surface of the valve body, and the temperature sensing bulb is mounted on the mounting ring.
According to an embodiment of the present invention, the valve body includes: the body is tubular; the water outlet hole seat is matched in the body, and the outlet of the valve body is formed on the water outlet hole seat.
Specifically, a sealing ring is matched between the outer peripheral surface of the water outlet seat and the inner peripheral surface of the body.
According to the water heater of the embodiment of the invention, the steady flow assembly comprises: the device comprises a fixed seat, a flow guide column and a flow stabilizing inlet, wherein the fixed seat is provided with the flow guide column and the flow stabilizing inlet is arranged around the flow guide column; the fixed cover is provided with a steady flow outlet; the pressure sensing ring is clamped on the fixed seat and the fixed cover, is directly sleeved on the flow guide column and controls the opening of the steady flow inlet according to the water pressure acting on the pressure sensing ring.
According to the water heater provided by the embodiment of the invention, the water inlet is connected with the water inlet joint, and the steady flow component is matched in the water inlet joint.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a water heater according to an embodiment of the present invention;
FIG. 2 is an exploded view of a thermo valve according to an embodiment of the invention;
FIG. 3 is a schematic structural view of a thermo valve according to an embodiment of the present invention, when the temperature of the incoming water is high;
FIG. 4 is a schematic structural view of a thermo valve according to an embodiment of the present invention, when the temperature of the incoming water is low;
FIG. 5 is a schematic diagram of a flow stabilizing assembly according to an embodiment of the present invention.
Reference numerals:
the water heater 100 is provided with a water heater,
a shell 10, a water inlet 11, a water inlet joint 111, a water outlet 12,
the heat exchanger 20 is provided with a heat exchanger,
the burner(s) 30 are (are) arranged,
the steady flow component 40, the fixed seat 41, the guide post 411, the steady flow inlet 412, the fixed cover 42, the steady flow outlet 421, the pressure sensing ring 43,
the temperature control valve 50, the valve body 51, the valve body inlet 5101, the valve body outlet 5102, the body 511, the water outlet seat 512, the paraffin temperature sensing assembly 52, the temperature sensing bulb 521, the accommodating chamber 5211, the push rod mounting hole 5212, the push rod 522, the travel rod 523, the positioning ring table 5231, the flow limiting plug 524, the elastic member 53, the mounting ring 54, the sealing ring 55,
the water flow rate sensor 60,
and a control system 70.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A water heater 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 5, a water heater 100 according to an embodiment of the present invention includes a housing 10, a heat exchanger 20, a burner 30, a flow stabilizing assembly 40, and a thermo valve 50.
The housing 10 has a water inlet 11 and a water outlet 12, the heat exchanger 20 is provided in the housing 10, and a burner 30 is also provided in the housing 10 for heating the heat exchanger 20.
The steady flow component 40 is arranged at the water inlet 11 of the shell 10, the steady flow component 40 can adjust the water flow entering the water inlet 11 according to the water pressure at the water inlet 11, when the water pressure is high, the steady flow component 40 can reduce the water flow entering the water inlet 11, so that the water flow is controlled at a preset value, and when the water pressure is low, the steady flow component 40 can increase the water flow entering the water inlet 11.
The thermo valve 50 includes: a valve body 51 and a paraffin temperature sensing assembly 52. The valve body 51 is connected between the heat exchanger 20 and the water inlet 11, and the valve body 51 is further provided with a valve body inlet 5101 and a valve body outlet 5102. The paraffin temperature sensing assembly 52 can control the opening of the valve body outlet 5102 according to the ambient temperature change.
Specifically, the temperature control valve 50 is arranged between the water inlet 11 of the water heater 100 and the heat exchanger 20, when the water temperature passing through the valve body 51 is low, the paraffin temperature sensing assembly 52 can reduce the opening of the valve body outlet 5102, so that the water flow entering the heat exchanger 20 is reduced; when the water temperature passing through the valve body 51 increases, the paraffin temperature sensing assembly 52 can increase the opening of the valve body outlet 5102, so that the water flow entering the heat exchanger 20 increases, and by arranging the temperature sensing valve 50, the water flow entering the water heater 100 is in a linear relation with the water inlet temperature, so that the water heater 100 can conveniently regulate and control the gas supply proportion of the burner 30, and the water temperature at the water outlet 12 is kept constant no matter the water temperature at the water inlet 11, and the use experience of a user is improved.
According to the water heater 100 of the embodiment of the invention, the steady flow component 40 is arranged at the water inlet 11 of the water heater 100, and the temperature control valve 50 is connected between the water inlet 11 and the heat exchanger 20, so that the water heater 100 can automatically control the water inflow flow from the source according to the difference of the water inflow temperature and the water inflow pressure, and the water heater 100 can achieve the ideal water outflow effect no matter the water inflow temperature and the water inflow pressure, namely, the water outflow temperature is proper and constant, the water flow is stable, and the user experience is good.
In addition, compared with the technical scheme that the flow stabilizing assembly 40 is arranged in the temperature control valve 50 by arranging the temperature control valve 50 and the flow stabilizing assembly 40 at intervals on the waterway of the water heater 100, the mutual interference generated when the temperature control valve 50 and the flow stabilizing assembly 40 work is avoided, meanwhile, the flow stabilizing assembly 40 and the temperature control valve 50 can be replaced or regulated conveniently, so that the water heater 100 can be suitable for use environments in different areas and at different temperatures, and the applicability of the water heater 100 is improved; further, the flow stabilizing assembly 40 and the temperature control valve 50 can be manufactured in a modularized manner, so that the requirements of different models of water heaters 100 can be met.
As shown in fig. 2 and 3, the paraffin temperature sensing assembly 52, according to one embodiment of the present invention, includes: a bulb 521, a push rod 522 and a travel rod 523.
The bulb 521 is disposed in the valve body 51 of the temperature control valve 50, the bulb 521 has a receiving chamber 5211, the receiving chamber 5211 is filled with a paraffin temperature sensing material, the paraffin temperature sensing material can be linearly changed according to the water temperature, when the water temperature increases, the paraffin temperature sensing material expands, and when the water temperature decreases, the paraffin temperature sensing material contracts. The bulb 521 is further provided with a pushrod mounting hole 5212, and the pushrod mounting hole 5212 is provided in the accommodating chamber 5211 in a direction toward the valve body outlet 5102.
The push rod 522 is fitted in the push rod mounting hole 5212, and the push rod 522 is relatively movable in the axial direction of the valve body 51. Compared with the technical scheme that the push rod 522 is not arranged, the push rod 522 can be firstly arranged in the push rod mounting hole 5212 when the push rod 521 is directly used for driving the travel rod 523, and then the whole formed by the push rod 522 and the temperature sensing bulb 521 is arranged in the valve body 51, so that the paraffin temperature sensing assembly 52 is convenient to manufacture and mount, the filling and packaging of the temperature sensing bulb 521 are convenient, and the tightness and the temperature sensing effect of the paraffin temperature sensing assembly 52 can be improved.
One end of the travel rod 523 is connected with the push rod 522, the other end of the travel rod 523 is provided with a flow limiting plug 524, and the push rod 522 pushes the travel rod 523 to move under the driving of the deformation force of the paraffin temperature sensing material, so that the flow limiting plug 524 is driven to move relative to the valve body outlet 5102, and the opening degree of the valve body outlet 5102 can be controlled.
Specifically, when the temperature of the water passing through the temperature control valve 50 increases, the paraffin temperature sensing material expands, the stroke lever 523 moves under the pushing of the push rod 522, and drives the flow limiting plug 524 to move, so that the opening degree of the valve body outlet 5102 becomes larger, and the water flow rate passing through the valve body outlet 5102 increases; when the water inlet temperature is lower, the paraffin temperature sensing material contracts, the travel rod 523 moves in the opposite direction under the pushing of the push rod 522, and the flow limiting plug 524 is driven to move in the opposite direction, so that the opening degree of the valve body outlet 5102 is reduced, and the water flow passing through the valve body outlet 5102 is reduced.
In some examples, the stroke lever 523 and the push rod 522 are manufactured separately, and compared with the technical scheme that the push rod 522 is not arranged, the stroke lever 523 is directly driven by the temperature sensing bulb 521, so that the paraffin temperature sensing assembly 52 can be conveniently applied to water heaters 100 with different models or different sizes of the water inlets 11, and the modularized standardized production of the stroke lever 523 and the push rod 522 is facilitated. The paraffin temperature sensing assembly 52 is arranged at the water inlet 11 of the water heater 100, so that the water heater 100 can accurately control the water inflow.
According to an example of the present invention, the thermo valve 50 further includes an elastic member 53, where the elastic member 53 is disposed in the valve body 51, and is used to drive the travel lever 523 to drive the flow limiting plug 524 to move in a direction of reducing the opening of the valve body outlet 5102.
Specifically, the outer peripheral surface of the travel rod 523 is provided with a positioning ring 5231, the elastic member 53 may be a compression spring, and the compression spring is sleeved on the outer side of the travel rod 523, one end of the compression spring is stopped against the positioning ring 5231, and the other end is stopped against the inner end surface of one end of the valve body 51 where the valve body outlet 5102 is located. Specifically, when the water temperature passing through the bulb 521 is high, the paraffin temperature sensing material expands in volume, so as to push the push rod 522 and the travel rod 523 to overcome the elastic force of the pressure spring, when the water temperature passing through the bulb 521 is low, the paraffin temperature sensing material reduces in volume, the travel rod 523 pushes the push rod 522 to reset under the elastic force of the pressure spring, the pressure spring provides a driving force for the movement of the travel rod 523, the travel rod 523 can be automatically reset, meanwhile, the movement of the travel rod 523 is more sensitive, the movement stability of the flow limiting plug 524 is ensured, and therefore the stability of the water flow of the water heater 100 is ensured.
As shown in fig. 3, in some examples, the valve body outlet 5102 may form a hole seat with a tapered cross-sectional area, the size of the tapered hole is gradually increased from bottom to top, the shape of the flow-limiting plug 524 is matched with the shape of the valve body outlet 5102, that is, the cross section of the flow-limiting plug 524 is also tapered, and the tapered surface of the flow-limiting plug 524 is parallel to the tapered surface of the valve body outlet 5102, so that the flow-limiting plug 524 is not blocked in the moving process, and meanwhile, the opening of the valve body outlet 5102 may be uniformly changed, so that the water flow of the water heater 100 is conveniently controlled.
In some specific examples, the mounting ring 54 is arranged on the inner peripheral surface of the valve body 51, the temperature sensing bulb 521 passes through the mounting ring 54 from bottom to top, the push rod mounting holes 5212 pass through the mounting ring 54 and are respectively fixed on two sides of the mounting ring 54 with the accommodating cavity 5211, the push rod mounting holes 5212 are in interference sealing connection with the matching wall surface of the mounting ring 54, and the mounting ring 54 and the valve body 51 are integrated, so that the temperature sensing bulb 521 is firmly fixed on the valve body 51 of the temperature control valve 50, and the temperature sensing bulb is simple in structure and convenient to install.
In other examples, the bulb 521 is fixed on the mounting ring 54 by a threaded connection, and the mounting ring 54 is mounted inside the valve body 51 by a threaded connection, so that the bulb 521 is fixedly connected on the valve body 51 of the thermo valve 50, and the structure is simple and the stability is good.
As shown in fig. 2-4, the valve body 51 includes a body 511 and a spout seat 512 according to one embodiment of the present invention. Wherein, the body 511 is tubular, the outlet seat 512 is fitted in the body 511, the valve body outlet 5102 is formed on the outlet seat 512, and the valve body inlet 5101 is located at one end of the tubular body 511 far away from the outlet seat 512.
Wherein, the upper end of the valve body 51 has a boss, the upper end of the water outlet seat 512 is stopped against the lower side of the boss of the valve body 51, a sealing ring 55 is arranged between the outer peripheral surface of the water outlet seat 512 and the inner peripheral surface of the body 511, the sealing ring 55 can fix the water outlet seat 512, the water outlet seat 512 is prevented from moving relatively, and the tightness between the water outlet seat 512 and the body 511 is ensured.
As shown in fig. 5, the current stabilizing assembly 40 according to one embodiment of the present invention includes: a fixed seat 41, a fixed cover 42 and a pressure sensing ring 43.
The fixed seat 41 is provided with the flow guide column 411 and the flow stabilizing inlet 412, the flow stabilizing inlet 412 surrounds the flow guide column 411, the fixed cover 42 is provided with the flow stabilizing outlet 421, the pressure sensing ring 43 is clamped between the fixed seat 41 and the fixed cover 42, and the pressure sensing ring 43 is sleeved on the flow guide column 411, so that the opening degree of the flow stabilizing inlet 412 can be controlled according to the water pressure acting on the pressure sensing ring.
Specifically, the inflow water with a certain temperature firstly flows through the pressure sensing ring 43, when the inflow water pressure is increased, the inflow water flow is increased, and the pressure sensing ring 43 expands, so that the opening degree of the steady flow inlet 412 is reduced, namely the cross section area of the steady flow inlet 412 is reduced, and the water flow flowing into the water heater 100 is kept constant; when the inflow pressure is reduced, the inflow flow is reduced, and the pressure sensing ring 43 is contracted, thereby increasing the opening of the steady flow inlet 412, i.e., increasing the cross-sectional area of the steady flow inlet 412, so that the flow rate of water flowing into the water heater 100 is maintained at a preset flow rate value and is maintained unchanged.
The pressure sensing ring 43 can be selected to be different in types according to the water heater 100 of different types or different flow requirements of the water heater 100, so that the requirements of different users are met, and the water heater is simple in structure, convenient to use and convenient to popularize on a large scale.
According to a specific embodiment of the present invention, the water inlet 11 of the water heater 100 is connected with the water inlet joint 111, and the current stabilizing component 40 is matched in the water inlet joint 111, so that the current stabilizing component 40 directly adjusts the water flow entering the water heater 100 according to the water pressure at the water inlet 11, and automatically controls the water inlet flow from the source, without the need of repeated judgment and calculation by the control system 70 in the water heater 100, thereby greatly shortening the reaction time, reducing the energy consumption and improving the user experience.
A water heater 100 according to one embodiment of the present invention is described below in conjunction with fig. 1-5.
The water heater 100 according to an embodiment of the present invention includes: the system comprises a shell 10, a heat exchanger 20, a combustor 30, a steady flow assembly 40, a temperature control valve 50, a water flow sensor 60 and a control system 70.
The shell 10 is provided with a water inlet 11 and a water outlet 12, the heat exchanger 20, the burner 30, the temperature control valve 50, the water flow sensor 60 and the control system 70 are arranged in the shell 10, the steady flow assembly 40 is arranged at the water inlet 11 and fixed at the lower end of the water flow sensor 60, and the shell is composed of a fixed seat 41, a fixed cover 42 and a pressure sensing ring 43. The pressure sensing ring 43 is installed between the fixed seat 41 and the fixed cover 42.
The temperature control valve 50 is connected between the water flow sensor 60 and the heat exchanger 20 and comprises a valve body 51, a paraffin temperature sensing assembly 52, an elastic piece 53, a mounting ring 54 and a sealing ring 55. The valve body 51 includes body 511 and apopore seat 512, and the upper end of valve body 51 has the boss, and the upper end of apopore seat 512 ends in the downside of valve body 51 boss, and sealing washer 55 installs between body 511 and apopore seat 512. The paraffin temperature sensing assembly 52 is fixed on the mounting ring 54 through threaded connection, and consists of a temperature sensing bulb 521, a push rod 522, a travel rod 523 and a current limiting plug 524. The lower end of the temperature sensing bulb 521 is provided with a valve body inlet 5101, a valve body outlet 5102 is defined between the flow limiting plug 524 and the water outlet seat 512, the travel rod 523 is sleeved on the push rod 522, the elastic piece 53 is sleeved on the travel rod 523, the elastic piece is fixed between the travel rod 523 and the water outlet seat 512, and the mounting ring 54 is arranged in the valve body 51 through threads.
When water flow at a certain temperature enters the water heater 100, the water flow passes through the flow stabilizing assembly 40. When the water pressure at the water inlet 11 increases, the water inflow rate increases, the pressure sensing ring 43 expands, the opening degree of the steady flow inlet 412 is reduced, and the water flow rate flowing into the water heater 100 is kept constant; when the inflow pressure is reduced, the inflow flow is reduced, the pressure sensing ring 43 is contracted, the opening of the steady flow inlet 412 is increased, and the flow rate of water flowing into the water heater 100 is increased, so that the flow rate of water is maintained at a preset flow rate value and is kept unchanged. At this point, the water flow rate is fed back to the control system 70 through the water flow rate sensor 60.
As shown in fig. 3, when the temperature of the water entering the valve body inlet 5101 increases, the paraffin temperature sensing material expands, the push rod 522 moves upward, and the push rod 522 drives the stroke rod 523 and the flow limiting plug 524 to move upward, so that the opening of the valve body outlet 5102 increases, and the water flow entering the heat exchanger 20 inside the water heater 100 increases.
As shown in fig. 4, when the temperature of the water entering the valve body inlet 5101 decreases, the paraffin temperature sensing material contracts, the push rod 522 moves downward, the stroke rod 523 and the flow limiting plug 524 are driven to move downward, the opening degree of the valve body outlet 5102 becomes smaller, and the water flow entering the heat exchanger 20 inside the water heater 100 decreases.
The control system 70 controls the operation of the burner according to the water flow rate and the water inlet temperature and the water outlet temperature set by the user, so that the water outlet achieves a desired effect. Compared with the prior art, the water heater 100 does not need the control system 70 to repeatedly judge and calculate, greatly shortens the reaction time of the water heater 100, keeps constant water outlet temperature regardless of the water inlet temperature and the water inlet pressure, has stable water flow and good user experience.
Other constructions and operations of the water heater 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A water heater, comprising:
the shell is provided with a water inlet and a water outlet;
the heat exchanger is arranged in the shell;
a burner for heating the heat exchanger, the burner being disposed within the housing;
the steady flow assembly is arranged at the water inlet and used for adjusting the water flow entering the water inlet according to the water pressure at the water inlet;
a thermo valve, the thermo valve comprising:
the valve body is connected between the heat exchanger and the water inlet and is provided with a valve body inlet and a valve body outlet;
the paraffin temperature sensing assembly is used for controlling the opening of the valve body outlet according to the change of the ambient temperature;
the paraffin temperature sensing assembly includes:
the temperature sensing bag is arranged in the valve body, a containing cavity is formed in the temperature sensing bag, a push rod mounting hole facing to the outlet of the valve body is formed in the temperature sensing bag, and paraffin temperature sensing materials are filled in the containing cavity;
the push rod is matched in the push rod mounting hole in a relatively movable manner along the axial direction;
one end of the travel rod is connected with the push rod, the other end of the travel rod is provided with a flow limiting plug, the push rod is driven by the deformation force of the paraffin temperature sensing material, pushing the travel rod to drive the flow limiting plug to move relative to the valve body outlet so as to control the opening of the valve body outlet.
2. The water heater of claim 1, further comprising an elastic member disposed in the valve body and normally driving the travel rod to move the restrictor plug in a direction to reduce the outlet opening of the valve body.
3. The water heater according to claim 2, wherein the elastic member is a compression spring, a positioning ring table is arranged on the outer circumferential surface of the travel rod, the compression spring is sleeved outside the travel rod, and two ends of the compression spring are respectively stopped against the positioning ring table and the inner end surface of one end of the valve body where the valve body outlet is located.
4. The water heater as recited in claim 1, wherein the valve body outlet is a tapered hole having a cross-sectional area that gradually increases from inside to outside, and the restrictor plug is adapted to the shape of the valve body outlet.
5. The water heater as claimed in claim 1, wherein a mounting ring is provided on an inner circumferential surface of the valve body, and the bulb is mounted on the mounting ring.
6. The water heater as recited in claim 1, wherein the valve body comprises:
the body is tubular;
the water outlet hole seat is matched in the body, and the outlet of the valve body is formed on the water outlet hole seat.
7. The water heater according to claim 6, wherein a sealing ring is fitted between an outer peripheral surface of the outlet hole seat and an inner peripheral surface of the body.
8. The water heater of claim 1, wherein the flow stabilizing assembly comprises:
the device comprises a fixed seat, a flow guide column and a flow stabilizing inlet, wherein the fixed seat is provided with the flow guide column and the flow stabilizing inlet is arranged around the flow guide column;
the fixed cover is provided with a steady flow outlet;
the pressure sensing ring is clamped on the fixed seat and the fixed cover, is directly sleeved on the flow guide column and controls the opening of the steady flow inlet according to the water pressure acting on the pressure sensing ring.
9. The water heater of claim 1, wherein a water inlet is connected to the water inlet, and the flow stabilizing assembly is fitted within the water inlet.
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| CN201710774959.4A CN109425096B (en) | 2017-08-31 | 2017-08-31 | Water heater |
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| CN201710774959.4A CN109425096B (en) | 2017-08-31 | 2017-08-31 | Water heater |
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| CN109425096A CN109425096A (en) | 2019-03-05 |
| CN109425096B true CN109425096B (en) | 2024-04-12 |
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| CN201710774959.4A Active CN109425096B (en) | 2017-08-31 | 2017-08-31 | Water heater |
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| CN112856822B (en) * | 2021-01-12 | 2022-03-08 | 宁波方太厨具有限公司 | Water heater flow control system and control method |
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| CN109425096A (en) | 2019-03-05 |
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