CN214581770U - Water heater capable of preventing blocking of smoke channel - Google Patents

Abstract

The application provides a smoke protection canal jam formula water heater, including heat exchanger portion dress cavity, heat exchanger, combustor, gas circuit portion dress, install the solenoid valve, water route portion dress, temperature sensor that gas circuit portion adorned in gas circuit portion to and the controller according to temperature sensor's detected signal control solenoid valve switch, water route portion dress includes the low temperature water pipe, and the low temperature water pipe links to each other with heat exchanger portion dress cavity, and temperature sensor locates the position of neighbouring low temperature water pipe. According to the smoke-channel blockage preventing type water heater, the temperature sensor is arranged beside the low-temperature water pipe, the low-temperature water pipe can cool the area, close to the low-temperature water pipe, on the heat exchanger part installation cavity, so that the distinguished temperature is stable, the temperature detected by the temperature sensor is more stable during normal operation, and misoperation is avoided; when the flue is blocked, the temperature in the heat exchanger cavity can be rapidly increased and detected by the temperature sensor, so that the blockage of the flue is determined.

Description

Water heater capable of preventing blocking of smoke channel

Technical Field

The application belongs to the technical field of gas water heaters, and more specifically relates to a smoke-proof blocking type water heater.

Background

The gas water heater is the first choice for the water heater of consumers due to the advantages of instant heating and instant heating. However, the water heaters consume oxygen during combustion, and the tail gas after combustion contains CO, if the water heaters are not installed and used properly, flues such as a smoke outlet, a smoke outlet pipe, a heat exchanger gas channel and the like are blocked by foreign matters, so that unsmooth smoke discharge and combustion deterioration are easily caused, the content of CO in the tail gas is increased, and accidents such as CO poisoning and the like are caused. In the related art, a temperature sensor is installed on a heat exchanger unit cavity, and when a flue is blocked, the temperature sensor detects a temperature rise in the heat exchanger unit cavity to determine the blockage of the flue. However, when the water heater works, the temperature in the heat exchanger cavity is often changed dynamically, such as airflow change, water flow change, gas pressure change, etc., the temperature sensed by the temperature sensor can be changed, and false operation is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a flue blockage prevention formula water heater to solve the gas water heater that exists among the prior art and through detecting heat exchanger portion dress cavity temperature, with the mode of judging whether the flue blocks up, easily produce the problem of malfunction.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: the utility model provides a smoke protection canal jam formula water heater, including heat exchanger portion dress cavity, install in heat exchanger in the heat exchanger portion dress cavity, locate heat exchanger below combustor, with gas circuit portion dress that the combustor links to each other, install in solenoid valve that gas circuit portion dress was gone up, with water route portion dress that heat exchanger links to each other, install in temperature sensor on the heat exchanger portion dress cavity, and according to temperature sensor's detected signal control the controller of solenoid valve switch, temperature sensor with the solenoid valve respectively with the controller electricity is connected, water route portion dress is including being used for to the low temperature water pipe of heat exchanger portion water supply, the low temperature water pipe with heat exchanger portion dress cavity links to each other, temperature sensor locates adjacent the position of low temperature water pipe.

In an optional embodiment, the low-temperature water pipe is arranged on the outer side surface of the heat exchanger part cavity, and the temperature sensor is mounted on the side surface of the heat exchanger part cavity.

In an alternative embodiment, the temperature sensor is located at an end of the heat exchanger section cavity adjacent to the burner.

In an alternative embodiment, the cryogenic water tube includes a coil disposed around the heat exchanger section cavity.

In an alternative embodiment, the cryogenic water pipe comprises a straight pipe extending from the bottom of the heat exchanger section cavity towards the top of the heat exchanger section cavity.

In an alternative embodiment, a partial section of the low-temperature water pipe is bent to form a groove, and the temperature sensor is located in the groove.

In an alternative embodiment, the temperature sensor is a thermostat, thermocouple or thermistor.

In an alternative embodiment, the outlet of the low temperature water pipe is connected to the top of the heat exchanger.

In an optional embodiment, the air path part is provided with an air amount adjusting knob for adjusting the air amount.

In an optional embodiment, a water quantity adjusting knob for adjusting the water quantity is installed on the waterway part.

In an alternative embodiment, the flue blockage prevention type water heater is a forced-exhaust type gas water heater or a natural-exhaust type gas water heater.

The embodiment of the application provides a smoke protection way jam formula water heater's beneficial effect lies in: compared with the prior art, the smoke-channel blockage preventing type water heater has the advantages that the temperature sensor is arranged beside the low-temperature water pipe, the low-temperature water pipe can cool the area, close to the low-temperature water pipe, on the heat exchanger part cavity, so that the different temperatures are stable, the temperature detected by the temperature sensor is stable when the water heater operates normally, and misoperation is avoided; when the flue is blocked, the temperature in the heat exchanger cavity can be rapidly increased and detected by the temperature sensor, so that the blockage of the flue is determined. In addition, the temperature sensor is arranged beside the low-temperature water pipe, and can be protected through the low-temperature water pipe, so that the temperature sensor is better prevented from being impacted by external force, the mounting position of the temperature sensor is further ensured to be stable, and the detection result is prevented from being influenced and misoperation caused by position deviation is avoided. When no water flow exists in the water channel part, the temperature of the cavity of the heat exchanger part is increased and can be detected by the temperature sensor, so that dry burning is avoided; and when the water temperature in the heat exchanger is too high, the water temperature can be detected by the temperature sensor, so that the user can be prevented from being scalded by the high-temperature water.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a flue blockage prevention type water heater according to an embodiment of the present application;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic structural view of a flue blockage prevention type water heater according to another embodiment of the present application;

FIG. 4 is a schematic diagram of a side view of a heat exchanger cavity of a water heater with a smoke blocking prevention according to another embodiment of the present application;

FIG. 5 is a schematic diagram of a side view of a heat exchanger cavity of a water heater with a smoke blocking prevention according to another embodiment of the present application;

fig. 6 is a schematic side view of a heat exchanger cavity of a flue blockage prevention water heater according to another embodiment of the present application.

Wherein, in the drawings, the reference numerals are mainly as follows:

100-smoke-blocking prevention type water heater;

11-heat exchanger part cavity; 12-a heat exchanger; 13-a burner; 14-a controller; 15-gas circuit part installation; 151-solenoid valve; 152-gas volume adjusting knob; 16-waterway part installation; 160-low temperature water pipe; 1601-grooves; 161-coil pipe; 162-straight pipe; 17-a water quantity adjusting knob; 18-temperature sensor.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Reference throughout this specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a smoke blocking prevention type water heater 100 provided in the present embodiment; there is shown an internal block diagram of a flue blockage resistant water heater 100. Fig. 2 is an enlarged view of a portion a in fig. 1.

Referring to fig. 1 and 2, a flue blockage prevention type water heater 100 provided by the present application will now be described. The smoke blocking prevention type water heater 100 comprises a heat exchanger part cavity 11, a heat exchanger 12, a burner 13, an air path part 15 and a water path part 16.

Wherein the heat exchanger 12 is installed in the heat exchanger part housing 11 to support and protect the heat exchanger 12 by the heat exchanger part housing 11. The heat exchanger 12 is used for heat exchange. The burner 13 is used for generating combustion flue gas, the burner 13 is arranged below the heat exchanger 12, so that high-temperature combustion flue gas generated by the burner 13 passes through the heat exchanger 12 to heat the heat exchanger 12, and water flow also passes through the heat exchanger 12 to take away heat of the heat exchanger 12, so that the water flow and the combustion flue gas exchange heat in the heat exchanger 12 to heat the water flow for users to use. The gas path unit 15 is connected to the burner 13. When the smoke blocking prevention type water heater 100 is used, the air path part 15 is connected with an external gas pipeline, so that gas can enter the combustor 13 through the air path part 15 and is sprayed out and combusted through the combustor 13. The waterway unit 16 is connected to the heat exchanger 12. When the anti-smoke blocking type water heater 100 is used, the waterway assembly 16 is connected with an external water pipe, so that water can enter the heat exchanger 12 for heating through the waterway assembly 16.

The smoke blocking prevention type water heater 100 further comprises an electromagnetic valve 151, wherein the electromagnetic valve 151 is installed on the air path part 15, and the on-off of the air path part 15 can be controlled through the electromagnetic valve 151, namely the electromagnetic valve 151 can turn off the air path part 15 to prevent gas from entering the combustor 13; when the electromagnetic valve 151 is opened, gas can enter the burner 13, so that the operation and shutdown of the smoke blocking prevention type water heater 100 can be controlled by opening and closing the electromagnetic valve 151.

The smoke blocking prevention type water heater 100 further comprises a controller 14, the electromagnetic valve 151 is electrically connected with the controller 14, so that the electromagnetic valve 151 can be controlled through the controller 14 to automatically control the opening and closing of the electromagnetic valve 151, and further the smoke blocking prevention type water heater 100 is controlled to work and stop.

The flue blockage preventing water heater 100 further includes a temperature sensor 18, and the temperature sensor 18 is mounted on the heat exchanger unit accommodating chamber 11 to support the temperature sensor 18 through the heat exchanger unit accommodating chamber 11, and to allow the temperature sensor 18 to detect the temperature in the heat exchanger unit accommodating chamber 11, particularly the temperature in the heat exchanger unit accommodating chamber 11 adjacent to the temperature sensor 18.

The temperature sensor 18 is electrically connected to the controller 14, so that the temperature sensor 18 detects a temperature signal in the heat exchanger unit cavity 11 and can transmit the temperature signal to the controller 14, and the controller 14 can control whether the electromagnetic valve 151 needs to be turned off according to the detection signal of the temperature sensor 18. For example, when the flue of the flue blockage prevention type water heater 100 is blocked, the temperature in the heat exchanger part installation cavity 11 may be abnormally increased due to unsmooth smoke discharge, at this time, the temperature sensor 18 may detect the abnormally increased temperature in the heat exchanger part installation cavity 11, when the temperature in the heat exchanger part installation cavity 11 is detected to reach an action value, it is determined that the flue of the flue blockage prevention type water heater 100 is blocked, and the corresponding controller 14 controls the electromagnetic valve 151 to be turned off, so that the flue blockage prevention type water heater 100 is turned off, and a flue blockage protection effect is achieved.

In addition, when water is cut off suddenly or no water flow is caused by the fault of parts, the water heater still keeps burning, dry burning can be caused, and if no dry burning prevention protection is provided, fire accidents are easily caused. If no water flow exists, when the smoke channel blockage-preventing water heater 100 still maintains combustion, because no water flow takes away heat in the heat exchanger part cavity 11, the temperature of the heat exchanger part cavity 11 can be quickly raised, at the moment, the temperature sensor 18 can detect the quickly raised temperature in the heat exchanger part cavity 11, and when the temperature in the heat exchanger part cavity 11 is detected to reach an action value, the controller 14 controls the electromagnetic valve 151 to be switched off, so that the smoke channel blockage-preventing water heater 100 is switched off, the situation is prevented from further deteriorating, and the dry combustion preventing protection effect is achieved.

When the water heater is adjusted, when big fire and small water exist, or when the water pressure of a pipeline is insufficient, the temperature of the generated hot water is high, and a user is easily scalded. And set up temperature sensor 18 on heat exchanger portion dress cavity 11, can also play the guard action of preventing scalding, if when the discharge is less again when the big fire state, or when pipeline water pressure is not enough, rivers take away heat exchanger portion dress cavity 11 heat speed can slow down, the effect of cooling to heat exchanger portion dress cavity 11 is limited, can lead to heat exchanger portion dress cavity 11 temperature to rise fast, temperature sensor 18 can detect the temperature that rises fast in heat exchanger portion dress cavity 11 at this moment, when detecting that heat exchanger portion dress cavity 11 temperature reaches the action value, controller 14 control solenoid valve 151 shuts off, so that this smoke protection way jam formula water heater 100 shuts down, prevent that high temperature water from scalding the user, thereby play the guard action of preventing scalding.

The waterway unit 16 includes a low temperature water pipe 160, and the low temperature water pipe 160 is used for supplying water to the heat exchanger 12, i.e., the water flows into the heat exchanger 12 from the low temperature water pipe 160 for heat exchange. The heat exchanger unit housing 11 is connected to the low temperature water pipe 160 so as to support the low temperature water pipe 160 through the heat exchanger unit housing 11, and the low temperature water pipe 160 may cool down a region of the heat exchanger unit housing 11 adjacent to the low temperature water pipe 160 to equalize a temperature of the region, and particularly, a temperature change of a region of the heat exchanger unit housing 11 adjacent to the low temperature water pipe 160 may be small when the flue blockage preventing water heater 100 is normally operated.

The temperature sensor 18 is disposed at a position adjacent to the low temperature water pipe 160, so that when the anti-smoke blocking type water heater 100 operates normally, the temperature change detected by the temperature sensor 18 is small, and the low temperature water pipe 160 plays a role in balancing and stabilizing the temperature detected by the temperature sensor 18 to prevent malfunction. In addition, the heat exchanger portion cavity 11 is connected with the low temperature water pipe 160, the structural strength of the heat exchanger portion cavity 11 can be increased, the temperature sensor 18 is arranged at a position adjacent to the low temperature water pipe 160, the temperature sensor 18 can be better protected, especially when the smoke blocking prevention type water heater 100 is subjected to external force, most of impact can be borne by the low temperature water pipe 160, impact force is prevented from acting on the temperature sensor 18, the temperature sensor 18 is better prevented from being subjected to impact, the stability of the position of the temperature sensor 18 can be further ensured, possible position deviation in the assembling and transporting process is reduced, false operation caused by sampling temperature deviation of the temperature sensor 18 is caused, and the stability, consistency and effectiveness of blocking protection are improved.

Compared with the prior art, the smoke-blocking-prevention water heater 100 has the advantages that the temperature sensor 18 is arranged beside the low-temperature water pipe 160, the low-temperature water pipe 160 can cool the area, adjacent to the low-temperature water pipe 160, on the heat exchanger unit cavity 11, so that the distinguished temperature is stable, the temperature detected by the temperature sensor 18 is stable during normal operation, and misoperation is avoided; when the flue is blocked, the temperature in the heat exchanger unit cavity 11 is rapidly increased and detected by the temperature sensor 18, and the blockage of the flue is determined. In addition, the temperature sensor 18 is arranged beside the low-temperature water pipe 160, and the temperature sensor 18 can be protected by the low-temperature water pipe 160, so that the temperature sensor 18 is better prevented from being impacted by external force, the mounting position of the temperature sensor 18 is further ensured to be stable, and the detection result is prevented from being influenced and misoperation caused by position deviation is avoided. When no water flows in the waterway part 16, the temperature of the heat exchanger part cavity 11 is increased and is also detected by the temperature sensor 18, so as to avoid dry burning; but also by the temperature sensor 18 when the temperature of the water in the heat exchanger 12 is too high, to prevent the user from being scalded by the hot water.

In one embodiment, referring to fig. 1 and 2, the low temperature water pipe 160 is disposed on the side of the heat exchanger unit housing 11, i.e., the outer side of the heat exchanger unit housing 11, so as to increase the structural strength of the side of the heat exchanger unit housing 11.

In the above embodiment, the temperature sensor 18 is attached to the side surface of the heat exchanger portion housing 11. Because the span of the side surface of the heat exchanger part cavity 11 is small, the strength is relatively high, and the heat exchanger part cavity is not easy to dent and deform when being subjected to external force. The temperature sensor 18 is arranged on the side surface of the heat exchanger part cavity 11, so that the temperature sensor 18 can be better protected, the mounting position of the temperature sensor 18 is ensured to be stable, and the detection result is prevented from being influenced and misoperation caused by position deviation is avoided.

In one embodiment, the temperature sensor 18 is disposed at one end of the heat exchanger portion cavity 11 and is located at an end of the heat exchanger portion cavity 11 near the burner 13, so that the temperature change in the heat exchanger 12 can be detected more quickly and accurately.

In one embodiment, the low temperature water pipe 160 includes a coil 161, and the coil 161 is spirally wound around the heat exchanger part housing 11. Use the coil pipe 161 structure, the structural strength of increase heat exchanger portion dress cavity 11 that can be better, in addition, when rivers pass through coil pipe 161, can preheat the rivers in coil pipe 161 through heat exchanger portion dress cavity 11 to promote heat utilization efficiency.

In one embodiment, the water inlet of the heat exchanger 12 is disposed at the top of the heat exchanger 12, the inlet of the low temperature water pipe 160 is lower than the lower end of the heat exchanger 12, the water outlet of the low temperature water pipe 160 is connected to the water inlet at the top of the heat exchanger 12, so that low temperature water enters the heat exchanger 12 from the top of the heat exchanger 12, and the temperature of the combustion flue gas in the heat exchanger 12 is gradually reduced from the bottom of the heat exchanger 12 to the top of the heat exchanger 12, so that the flue gas with lower temperature exchanges heat with the water with lower temperature, and the flue gas with higher temperature exchanges heat with the water with higher temperature, thereby improving the heat exchange efficiency and the heat utilization rate.

In one embodiment, the temperature sensor 18 is a thermostat. When the temperature in the heat exchanger cavity 11 reaches the action value, the thermostat is turned off automatically to turn off the solenoid valve 151 by the controller 14, and the flue blockage prevention type water heater 100 is turned off. Of course, the temperature sensor 18 may also be a thermocouple or a thermistor, which is connected to the controller 14 and transmits a signal to the controller 14, and an operation value is preset in the control program of the controller 14, and when the temperature detected by the temperature sensor 18 reaches the operation value, the anti-blocking water heater 100 is closed.

In one embodiment, the air path portion 15 is provided with an air volume adjusting knob 152, and the air volume adjusting knob 152 is used for adjusting the air volume, so as to control the flow of the gas entering the combustor 13, so as to control the combustion power, thereby conveniently controlling the outlet water temperature.

In one embodiment, the waterway assembly 16 is provided with a water quantity adjusting knob 17, and the water quantity adjusting knob 17 is used for adjusting the quantity of water to conveniently control the water outlet flow.

In addition, when the air quantity adjusting knob 152 is installed on the air channel part 15 and the water quantity adjusting knob 17 is installed on the water channel part 16, the fire power and the water flow can be controlled by matching the air quantity adjusting knob 152 and the water quantity adjusting knob 17, and the temperature of the discharged water can be controlled better.

In one embodiment, the anti-blocking water heater 100 is a forced-air gas heater to better vent the generated flue gas. Of course, the flue blockage prevention type water heater 100 may be a natural exhaust type gas water heater to reduce the cost.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a smoke blocking prevention type water heater 100 according to the present embodiment; there is shown an internal block diagram of a flue blockage resistant water heater 100. The structure of the present embodiment is a modification on the basis of fig. 1. In the present embodiment, the temperature sensor 18 is provided in the middle region of the heat exchanger portion housing 11 and at an end of the heat exchanger portion housing 11 remote from the burner 13 to facilitate mounting of the temperature sensor 18. It is to be understood that the temperature sensor 18 may be disposed on the front surface, the rear surface, or the like of the heat exchanger unit housing 11.

Referring to fig. 4, fig. 4 is a schematic side view of the heat exchanger cavity 11 of the flue blockage prevention water heater 100 according to the present embodiment. The structure of the present embodiment is a modification on the basis of fig. 1. In this embodiment, the low temperature water pipe 160 includes a straight pipe 162, and the straight pipe 162 extends from the bottom of the heat exchanger unit housing 11 toward the top of the heat exchanger unit housing 11. The straight pipe 162 is used, the structure is simple, the installation is convenient, the cost is low, the thickness of the smoke-proof blocking type water heater 100 can be made thinner, and the occupied space is reduced.

In one embodiment, the straight tube 162 may be vertically disposed for ease of assembly. Of course, the straight tube 162 may be disposed in an inclined vertical direction.

In one embodiment, the low temperature water pipe 160 may include both a straight pipe 162 and a coil 161, for example, a portion of the low temperature water pipe 160 is a straight pipe, and another portion is a coil 161, so as to facilitate installation and layout of the low temperature water pipe 160 and improve heat utilization efficiency.

Referring to fig. 5, fig. 5 is a schematic side view of the heat exchanger cavity 11 of the flue blockage prevention water heater 100 according to the present embodiment. The structure of the present embodiment is a modification on the basis of fig. 4. In this embodiment, a partial section of the low temperature water pipe 160 is bent to form the groove 1601, so that the low temperature water pipe 160 cools the region in the groove 1601 on the heat exchanger unit cavity 11, so as to equalize the temperature in the region in the groove 1601, and in particular, when the flue blockage preventing water heater 100 is in normal operation, the temperature change in the groove 1601 is small. And with temperature sensor 18 in recess 1601, when this anti-smoke way jam formula water heater 100 normal operating, the temperature variation that temperature sensor 18 detected is also littleer, better steady temperature sensor 18's detection temperature to better prevent to produce the malfunction. In addition, the temperature sensor 18 is arranged in the groove 1601, so that the temperature sensor 18 can be better protected through the low-temperature water pipe 160, stress impact of the temperature sensor 18 can be better avoided, the stability of the position of the temperature sensor 18 can be further ensured, the possible position deviation in the assembling and transporting process is reduced, the false operation caused by the sampling temperature deviation of the temperature sensor 18 is reduced, and the stability, the consistency and the effectiveness of blocking protection are improved.

In one embodiment, a portion of the straight tube 162 may be bent to form the groove 1601 for ease of manufacturing and installation.

Referring to fig. 6, fig. 6 is a schematic side view of the heat exchanger cavity 11 of the smoke blocking prevention type water heater 100 according to the present embodiment. The structure of the present embodiment is a modification on the basis of fig. 5. In this embodiment, a partial section of the coil 161 is bent to form the groove 1601, so that the temperature detected by the temperature sensor 18 can be equalized, the temperature sensor 18 can be protected, and the heat of the cavity of the heat exchanger 12 can be fully utilized, thereby improving the heat utilization rate.

The smoke-proof blocking type water heater 100 provided by the embodiment of the application can not only realize smoke-proof blocking protection, but also realize dry burning prevention protection and scald prevention protection.

The smoke channel blockage preventing type water heater 100 can ensure that the position of the temperature sensor 18 is stable, reduces possible position deviation in the assembling and transporting process, leads to misoperation caused by sampling temperature deviation of the temperature sensor 18, and improves stability, consistency and effectiveness of blockage protection.

The smoke blocking prevention type water heater 100 in the embodiment of the application can be used as a natural exhaust type gas water heater and a forced exhaust type gas water heater.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (11)

1. Smoke protection channel jam formula water heater, including heat exchanger portion dress cavity, install in heat exchanger in the heat exchanger portion dress cavity, locate the combustor of heat exchanger below, with gas circuit portion dress that the combustor links to each other, install in solenoid valve that gas circuit portion was adorned, with water route portion dress that heat exchanger links to each other, install in temperature sensor on the heat exchanger portion dress cavity, and the basis temperature sensor's detected signal control the controller of solenoid valve switch, temperature sensor with the solenoid valve respectively with its characterized in that is connected to the controller electricity: the water channel part comprises a low-temperature water pipe used for supplying water to the heat exchanger, the low-temperature water pipe is connected with the heat exchanger part cavity, and the temperature sensor is arranged at a position close to the low-temperature water pipe.

2. The flue blockage prevention water heater as claimed in claim 1, wherein: the low-temperature water pipe is arranged on the outer side surface of the heat exchanger part cavity, and the temperature sensor is arranged on the side surface of the heat exchanger part cavity.

3. The flue blockage prevention water heater as claimed in claim 1, wherein: the temperature sensor is positioned at one end of the heat exchanger part-mounting cavity close to the combustor.

4. A flue blockage prevention water heater as claimed in any one of claims 1 to 3, wherein: the low-temperature water pipe comprises a coil pipe spirally wound around the heat exchanger part cavity.

5. A flue blockage prevention water heater as claimed in any one of claims 1 to 3, wherein: the low-temperature water pipe comprises a straight pipe which extends from the bottom of the heat exchanger cavity to the top of the heat exchanger cavity.

6. A flue blockage prevention water heater as claimed in any one of claims 1 to 3, wherein: and part of the section of the low-temperature water pipe is bent to form a groove, and the temperature sensor is positioned in the groove.

7. A flue blockage prevention water heater as claimed in any one of claims 1 to 3, wherein: the temperature sensor is a temperature controller, a thermocouple or a thermistor.

8. A flue blockage prevention water heater as claimed in any one of claims 1 to 3, wherein: and the outlet of the low-temperature water pipe is connected with the top of the heat exchanger.

9. A flue blockage prevention water heater as claimed in any one of claims 1 to 3, wherein: and the gas path part is provided with a gas amount adjusting knob for adjusting the gas amount.

10. A flue blockage prevention water heater as claimed in any one of claims 1 to 3, wherein: the water path part is provided with a water quantity adjusting knob for adjusting the water quantity.

11. A flue blockage prevention water heater as claimed in any one of claims 1 to 3, wherein: the smoke channel blockage prevention type water heater is a forced exhaust type gas water heater or a natural exhaust type gas water heater.

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