CN201539959U - Modified electric water heater - Google Patents
Modified electric water heater Download PDFInfo
- Publication number
- CN201539959U CN201539959U CN2009201798117U CN200920179811U CN201539959U CN 201539959 U CN201539959 U CN 201539959U CN 2009201798117 U CN2009201798117 U CN 2009201798117U CN 200920179811 U CN200920179811 U CN 200920179811U CN 201539959 U CN201539959 U CN 201539959U
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- temperature measuring
- inner bag
- measuring equipment
- wall
- electric heater
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Abstract
The utility model relates to a modified electric water heater, which comprises an outer casing, an inner container, a water inlet pipe, a water outlet pipe, a heating assembly, a temperature measuring device and a control component. The water inlet pipe and the water outlet pipe are communicated with the inner container; the heating assembly includes an upper heating pipe; and the temperature measuring device is installed on an outer wall of the inner container and forms an X axis and Y axis coordinate system with axial section of the inner container as an origin, wherein the inner container has a point with included angle of 18 degrees relative to the X axis, an outer wall area above a horizontal line of the point is an installation area of the temperature measuring device, and the temperature measuring device is mounted above a horizontal line of the upper heating pipe. The temperature measuring device is mounted on the outer wall of the inner container, especially on the outer wall area above the horizontal line of the point with the included angle of 18 degrees between the inner container and the X axis. According to the physical characteristics that heating hot water ascends and cold water descends, the area is a sensitive area to hot water of the water heater. Temperature of hot water heated in the water heater can be directly and quickly transmitted to the outer wall of the inner container in the area, thereby having sensitive and accurate measurement.
Description
Technical field
The utility model relates to a kind of electric heater, particularly a kind of improved electric heater.
Background technology
Electric heater is in use most important for the control of water temperature.At present, the thermometric mode of electric heater is traditional interior spy formula substantially, that is: stretch into sensing rod for temperature is set in the inner bag, and sensing rod for temperature is installed on the ring flange, detects the temperature of water.But traditional interior spy formula of long duration can form incrustation scale or other contamination precipitations on the tempilstick surface, have a strong impact on the heat conduction, causes the inaccurate and temperature-sensitive of thermometric to lag behind, and brings hidden danger to safe handling, even leads to a disaster.And for horizontal water heater, sensing rod for temperature is stretching in the inner bag of inclination, in case after using the surface sediment incrustation scale for a long time, the weight increase can cause the sensing rod for temperature detecting parameter obvious errors to occur, the adversely effecting temp precise control, because incrustation scale causes thermal resistance significantly to increase, cause the water heater temperature rise too high easily, exist to scald and reduce water heater service life, the sensing rod for temperature scale removal needs the water in the emptying water heater, could keep in repair after removing electrothermal tube, thus stretch into be provided with in the inner bag sensing rod for temperature keep in repair very inconvenient.
As State Intellectual Property Office on September 29th, 1999 Granted publication name be called the utility model patent of " electric heater ".The water courage bottom of its retaining is provided with cold water inlet, outlet pipe, and outlet pipe extends the hot water outlet pipe at nearly top, the middle heating tube of heating cold water and the heat sensor of thermometric of being provided with of the water courage of retaining from the bottom.This scheme is located at heat sensor in the inner bag, after the problem of existence has been of long duration, plays the surface and can pile up incrustation scale, impurity, influences the sensitivity of thermometric, gives the hidden danger of bringing safe in utilization.And be inconvenient to change, keep in repair.
For horizontal water heater, as State Intellectual Property Office on December 17th, 2008 Granted publication, the patent No. is that CN200720061756.2, name become the utility model patent of " a kind of electric heater ".The water heater of this scheme is taken charge of water heater for me, and heating tube stretches into from the side of water heater liner, tempilstick and heating tube one logical being installed on the ring flange, and concrete structure is as shown in Figure 2.After tempilstick uses for a long time in this scheme, the incrustation scale of piling up not only can cause sensitivity of thermometry to descend, postpone, and the long-pending knot of incrustation scale constantly increases thermal resistance, make temperature control system be difficult to collect data accurately and effectively, the water heater temperature is risen too high, be easy to generate and scald and shortening heat hydrophone service life, scale removal then will disassemble whole flange connection heating tube altogether, and maintain and replace is very inconvenient.
The utility model content
In order to solve above-mentioned deficiency of the prior art, the utility model provides a kind of improved electric heater, changes the existing thermometric mode that stretches into liner type, directly be installed on the inner bladder outer wall, and the sensitive area setting of being heated near electrothermal tube.Not only sensitivity of thermometry can not descend, and does not contact with water, the long-pending knot influence of no incrustation scale or other impurity, and long-term the use yet can not reduced because of fouling makes sensitivity.In case temperature element breaks down, repair and replacement are also very convenient.
The main technical schemes that the utility model adopts is: a kind of improved electric heater, comprise shell, inner bag, the water inlet pipe that is communicated with described inner bag, outlet pipe, also comprise heating component, temperature measuring equipment and control assembly, described heating component comprises heating tube, described temperature measuring equipment is installed on the outer wall of described inner bag, the center of circle with the inner bag axial cross section makes up x axle (trunnion axis), y axle (vertical axis) coordinate system: inner bag becomes the point of 18 degree angles with the x axle, this some outer wall area above the horizon is the zone that described temperature measuring equipment is installed, and described temperature measuring equipment is positioned at described upward heating tube above the horizon.
The utility model also adopts following attached technical scheme: described temperature measuring equipment is arranged in inner bag and becomes fan-shaped outer wall area and the described outer wall area overlapping areas of 45 degree to 135 degree with the x axle;
Between 0 to 2/3R, described R is the inner bag radius to described temperature measuring equipment apart from the distance at inner bag top;
Described temperature measuring equipment is installed on the end cap of inner bag, and the described vertical interval of heating tube that goes up of described temperature measuring equipment distance is greater than 15mm;
Described temperature measuring equipment is installed on the bucket wall of inner bag, and the described vertical interval of heating tube that goes up of described temperature measuring equipment distance is greater than 15mm;
Described temperature measuring equipment comprises temperature-sensing element, installing rack, and described installing rack is fixedly welded on the described wall of inner container, forms cavity between described installing rack and the wall of inner container, and described temperature-sensing element is in the described cavity and with wall of inner container and contacts;
The body of described installing rack is provided with bolt or screw, and the front end of described bolt or screw stretches into described cavity and is resisted against on the described temperature-sensing element;
Described installing rack also is provided with protective sleeve, and described protective sleeve is placed in the described cavity, and described temperature-sensing element is placed in the described protective sleeve, and the front end of described bolt or screw stretches into described cavity and is resisted against on the protective sleeve;
Protective sleeve is provided with the pintle of location and slip-off preventing, and described pintle is hung on the end face of installing rack;
Described temperature-sensing element comprises temperature controller and overheat protector; form 2 described cavitys between described installing rack and the wall of inner container; corresponding with 2 described cavitys be provided with 2 described bolts; described temperature controller and overheat protector lay respectively in described 2 cavitys, and described 2 bolts lean with described temperature controller and overheat protector respectively.
The beneficial effect that adopts the utility model to bring is: (1) the utility model is installed on temperature measuring equipment on the inner bladder outer wall, is installed on inner bag especially and becomes with the x axle in 18 points of spending angles, this some outer wall area above the horizon.Because the physical characteristic that hot water heating rising, cold water sink, this zone is the sensitizing range of water heater hot-water, and the hot water temperature of water heater heating can be transmitted on this regional inner bladder outer wall directly, fast, detects sensitive, accurate.(2) the last heating tube in the inner bag also is located in this zone, when only using the heating tube Fast Heating, owing to be in the same area with last heating tube, can accurate detection to the hot water temperature of last heating tube heating, provide temperature detection, control accurately for using hot water fast, on a small quantity.(3) temperature measuring equipment is installed on the inner bag end cap, and is more convenient for detection maintenance, the replacing of temperature measuring equipment; Temperature measuring equipment is installed on the bucket wall of inner bag and since the water in the more approaching bucket particularly distance stretch into the distance of vertical interval more than 15m of the last heating tube of inner bag, the sensitivity of detection is higher, detection is more accurate.(4) installing rack in the temperature measuring equipment adopts welding manner to be fixed on the outer wall, compares fixed forms such as bolt, grafting, clamping, can not cause any damage to wall of inner container, does not influence the pressure-bearing effect of inner bag.(5) on the installing rack bolt is set, stretches into the degree of depth of cavity and temperature-sensing element is resisted against on the wall of inner container, thereby effectively guarantee the abundant applying of temperature-sensing element and wall of inner container by adjusting bolt.It is convenient, flexible to reconcile.
Description of drawings
Fig. 1 is the axial arrangement schematic diagram of the utility model water heater, and emphasis illustrates the residing zone of temperature measuring equipment;
Fig. 2 is the structure chart of the utility model temperature measuring equipment;
Fig. 3 is that the parts of the utility model temperature measuring equipment split schematic diagram;
Fig. 4 is the perspective view of the utility model water heater;
Fig. 5 is the side structure schematic diagram of water heater among another embodiment of the utility model heat; Emphasis illustrates temperature measuring equipment and is installed on structure on the inner bag bucket wall.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description:
Extremely shown in Figure 5 as Fig. 1, a kind of improved electric heater that provides for the utility model, comprise shell, inner bag 1, the water inlet pipe 2 that is communicated with described inner bag 1, outlet pipe 3, also comprise heating component, temperature measuring equipment and control assembly, described heating component comprises heating tube 4, described temperature measuring equipment is installed on the outer wall of described inner bag 1, the center of circle with inner bag 1 axial cross section makes up x axle (trunnion axis), y axle (vertical axis) coordinate system: inner bag 1 becomes the point of 18 degree angles with the x axle, this some outer wall area above the horizon is the zone that described temperature measuring equipment is installed, and described temperature measuring equipment is positioned at described upward heating tube 4 above the horizon.
According to scheme member coordinate system of the present utility model the time, be that the location status during with the water heater actual installation is as the criterion, the position of water heater actual installation to the metope just.Or be as the criterion with water inlet pipe 2 and outlet pipe 3 location status vertically downward.Horizontal line is to be benchmark with the coordinate determined, and it is parallel with the x axle.The embodiment that the utility model provides is as the criterion the member coordinate system with the location status of water heater actual installation and with water inlet pipe 2 and outlet pipe 3 state vertically downward, concrete X-axis-Y-axis coordinate system as shown in Figure 1.The metope direction of the direction of X-axis after the water heater actual installation, the direction of y axle makes progress perpendicular to ground, and with the center of circle in the inner bag cross section central point as coordinate system.
In the such scheme that the utility model provides, as shown in Figure 1, described temperature measuring equipment is arranged in inner bag 1 and becomes fan-shaped outer wall area and the described outer wall area overlapping areas of 45 degree to 135 degree with the x axle.The zone that fill for shade in Fig. 1 in this zone.Because temperature measuring equipment is installed on the inner bladder outer wall, inner bag 1 becomes 45 degree to the fan-shaped outer wall area and described outer wall area a overlapping areas of 135 degree with the x axle.Because the physical characteristic that hot water heating rising, cold water sink, this zone is the sensitizing range of water heater hot-water, and the hot water temperature of water heater heating can be transmitted on this regional inner bladder outer wall directly, fast, detects sensitive, accurate.
In the such scheme that the utility model provides, between 0 to 2/3R, described R is the radius of inner bag 1 to described temperature measuring equipment apart from the distance at inner bag 1 top.This scheme defines the distance of temperature measuring equipment apart from the inner bag top, should be in this distance range, and it is optimum that the sensitivity of thermometry of temperature measuring equipment and accuracy reach.
In the such scheme that the utility model provides, described temperature measuring equipment is installed on the end cap 11 of inner bag 1, and the described vertical interval of heating tube 4 that goes up of described temperature measuring equipment distance is greater than 15mm.Temperature measuring equipment is installed on the inner bag end cap 11, and is more convenient for detection maintenance, the replacing of temperature measuring equipment.
In the such scheme that the utility model provides, described temperature measuring equipment is installed on the bucket wall 12 of inner bag 1, and the described vertical interval of heating tube 4 that goes up of described temperature measuring equipment distance is greater than 15mm.Temperature measuring equipment is installed on the bucket wall 12 of inner bag, because the water in the more approaching bucket, particularly distance stretch into the vertical interval of last heating tube 4 of inner bag 1 more than 15mm, the sensitivity of detection is higher, detection is more accurate.
In the such scheme that the utility model provides, described temperature measuring equipment comprises temperature-sensing element, installing rack 7, and described installing rack 7 is fixedly welded on described inner bag 1 wall.Installing rack 8 adopts welding manner to be fixed on the wall of inner container, compares fixed forms such as bolt, grafting, clamping, can not cause any damage to wall of inner container, does not influence the pressure-bearing effect of inner bag 1.
Described temperature-sensing element comprises temperature controller 91 and overheat protector 92, promptly detects the heating-up temperature of inner bag water, and monitor water temperature is not wanted overshoot, overheated, duplicate protection again.Form 2 described cavitys 8 between described installing rack 7 and the wall of inner container; corresponding with 2 described cavitys 8 be provided with 2 described bolts 71; described temperature controller 91 and overheat protector 92 lay respectively in described 2 cavitys 8, and described 2 bolts 71 lean with described temperature controller 91 and overheat protector 92 respectively.
In the such scheme that the utility model provides, heating tube 5 and following heating tube 6 during described heating tube assembly also comprises, described middle heating tube 5 is positioned at described below of going up heating tube 4, and described heating tube 6 down is arranged in the below of described heating tube 5.This scheme has provided the structure of 3 pipe heating, and the upper, middle and lower zone of inner bag 1 is provided with heating tube respectively, can realize the layering heating of inner bag 1.In the scheme of giving, the temperature detection of temperature measuring equipment more has its actual effect for the water heater of layering heating.Because layering heating water heater 3 pipes in real work are worked respectively or are worked simultaneously according to operating position, the hot water temperature on water heater top can change frequent, fast, temperature measuring equipment can well detected temperatures variation, provide temperature signal accurately for the water heater of layering heating carries out temperature control.Be more conducive to layering water heater layering heating, temperature controlled realization.
In the such scheme that the utility model provides, the described heating tube 4 of going up is arranged in inner bag 1 becomes 18 degree angles with the x axle point, this some interior zone above the horizon.Be positioned at this zone and can realize the Fast Heating of water heater, satisfy quick, a spot of water demand of user, temperature measuring equipment and last heating tube are in the same area, the hot water temperature of heating tube 4 Fast Heating on the accurate detection more, and in time the water temperature of relative users is reconciled.
Following the utility model provides 2 embodiment such scheme is supported.
First embodiment as shown in Figures 1 to 4, among this embodiment, temperature measuring equipment is installed on the end cap 11 of inner bag 1.Temperature measuring equipment is 1/3R apart from the distance of inner bag roof, and R is the inner bag radius.The distance that provides among Fig. 1 is a benchmark with the residing horizontal line of temperature measuring equipment position intermediate, and the inner bag top is a benchmark for the horizontal line of inner bag 1 top shown in Fig. 1, promptly with the crossing position of y axle.The vertical interval of the last heating tube 4 of temperature measuring equipment distance is 18mm, and this is a benchmark apart from the central horizontal line position of calculating with the temperature measuring equipment shown in Fig. 1, and the central horizontal line position of also above heating tube 4 is the benchmark measuring and calculating simultaneously.In the present embodiment, temperature measuring equipment and go up heating tube and all be arranged in inner bag 1 and become 45 degree to the fan-shaped outer wall areas and the described inner bag of 135 degree to become 18 to spend angles regional institute overlapping areas above the horizon with the x axle with the x axle.Be the zone shown in the dash area among Fig. 1.
As Fig. 2, shown in Figure 3; temperature measuring equipment comprises installing rack 7; 2 bolts 71; have 2 screws 72 with bolt 71 threaded engagement on the installing rack 7; installing rack 7 is weldingly fixed on the end cap 11 of inner bag 1; installing rack 7 has 2 cavitys 8, and temperature controller 91 and overheat protector 92 lay respectively in 2 cavitys 8.If overheat protector adopts liquid-type, then on overheat protector, overlap a protective sleeve 10.The front end of bolt 71 stretch into cavity 8 and be resisted against temperature controller 91 and protective sleeve 10 on; thrust is compressed overheat protector 92 by protective sleeve 10; protective sleeve 10 protection overheat protectors 92 can not damaged by bolt 71 thrusts or sharp end, guarantee that overheat protector 92 and inner bag fit tightly.Protective sleeve 10 is provided with the location and the pintle 101 of slip-off preventing, and pintle 101 is hung on the end face of installing rack 7, plays the fixed stop effect, and protective sleeve 10 comes off to lose and causes bolt 71 thrusts or sharp end damage temperature-sensing element when preventing that installation from reprocessing.
Second embodiment compares its change part of first embodiment and is that temperature measuring equipment is installed on the bucket wall 12 of inner bag 1 as shown in Figure 5.In this embodiment, temperature measuring equipment is 18mm apart from the vertical interval that stretches into the last heating tube in the inner bag 1.The upper water horizontal line of last heating tube 4 is the benchmark of measuring and calculating, and the residing horizontal line of the overheat protector of temperature measuring equipment by calculating the spacing between these two horizontal lines, is 18mm thereby draw vertical interval for another measuring and calculating benchmark.
Claims (10)
1. improved electric heater, comprise shell, inner bag (1), the water inlet pipe (2) that is communicated with described inner bag (1), outlet pipe (3), also comprise heating component, temperature measuring equipment and control assembly, described heating component comprises heating tube (4), it is characterized in that: described temperature measuring equipment is installed on the outer wall of described inner bag (1), the center of circle with inner bag (1) axial cross section makes up x axle (trunnion axis), y axle (vertical axis) coordinate system: inner bag (1) becomes the point of 18 degree angles with the x axle, this some outer wall area above the horizon is the zone that described temperature measuring equipment is installed, and described temperature measuring equipment is positioned at described upward heating tube (4) above the horizon.
2. electric heater according to claim 1 is characterized in that: described temperature measuring equipment is arranged in inner bag (1) and becomes fan-shaped outer wall area and described outer wall area (a) overlapping areas of 45 degree to 135 degree with the x axle.
3. electric heater according to claim 1 is characterized in that: between 0 to 2/3R, described R is the radius of inner bag (1) to described temperature measuring equipment apart from the distance at inner bag (1) top.
4. electric heater according to claim 1 is characterized in that: described temperature measuring equipment is installed on the end cap (11) of inner bag (1), and the described vertical interval of heating tube (4) that goes up of described temperature measuring equipment distance is greater than 15mm.
5. electric heater according to claim 1 is characterized in that: described temperature measuring equipment is installed on the bucket wall (12) of inner bag (1), and the described vertical interval of heating tube (4) that goes up of described temperature measuring equipment distance is greater than 15mm.
6. electric heater according to claim 1, it is characterized in that: described temperature measuring equipment comprises temperature-sensing element, installing rack (7), described installing rack (7) is fixedly welded on described inner bag (1) wall, form cavity (8) between described installing rack (7) and the wall of inner container, described temperature-sensing element is in the described cavity (8) and with wall of inner container and contacts.
7. electric heater according to claim 6 is characterized in that: the body of described installing rack (7) is provided with bolt or screw, and the front end of described bolt or screw stretches into described cavity (8) and is resisted against on the described temperature-sensing element.
8. electric heater according to claim 6; it is characterized in that: described installing rack (7) also is provided with protective sleeve (10); described protective sleeve (10) is placed in the described cavity (8); described temperature-sensing element is placed in the described protective sleeve (10), and the front end of described bolt or screw stretches into described cavity (8) and is resisted against on the protective sleeve (10).
9. electric heater according to claim 8 is characterized in that: protective sleeve (10) is provided with the pintle (101) of location and slip-off preventing, and described pintle (101) is hung on the end face of installing rack (7).
10. electric heater according to claim 6; it is characterized in that: described temperature-sensing element comprises temperature controller (91) and overheat protector (92); form 2 described cavitys (8) between described installing rack (7) and the wall of inner container; corresponding with 2 described cavitys (8) 2 the described bolts (71) that are provided with; described temperature controller (91) and overheat protector (92) lay respectively in described 2 cavitys (8), and described 2 bolts (71) lean with described temperature controller (91) and overheat protector (92) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201798117U CN201539959U (en) | 2009-11-02 | 2009-11-02 | Modified electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201798117U CN201539959U (en) | 2009-11-02 | 2009-11-02 | Modified electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201539959U true CN201539959U (en) | 2010-08-04 |
Family
ID=42591411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201798117U Expired - Lifetime CN201539959U (en) | 2009-11-02 | 2009-11-02 | Modified electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201539959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352194A (en) * | 2015-11-13 | 2016-02-24 | 四川省乐山市长江锅炉有限公司 | Double-drum self-filtering temperature measuring type hot water boiler |
-
2009
- 2009-11-02 CN CN2009201798117U patent/CN201539959U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352194A (en) * | 2015-11-13 | 2016-02-24 | 四川省乐山市长江锅炉有限公司 | Double-drum self-filtering temperature measuring type hot water boiler |
| CN105352194B (en) * | 2015-11-13 | 2018-06-22 | 四川省乐山市长江锅炉有限公司 | Double drum inherent filtration temp.-measuring type hot-water boilers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100804 |