CN206670066U - Gas heater - Google Patents

Abstract

The utility model discloses a kind of gas heater, the gas heater includes combustion gas main body, heating pipeline, inlet pipeline, hot water line and cold water pipeline, heating pipeline is arranged in combustion gas main body, the heated pipeline of inlet pipeline connects with hot water line, and inlet pipeline also connects through cold water pipeline with hot water line；Gas heater also includes driving pipeline, water circulating pump, the auxiliary warmware of electricity and control device, and driving pipeline is connected in parallel on inlet pipeline, and water circulating pump and the auxiliary warmware of electricity are separately positioned on driving pipeline, and control device is electrically connected with water circulating pump and the auxiliary warmware of electricity.The utility model ensure that user can improve convenience and promptness that hot water uses, and avoid the pre-warmed danger of combustion gas quickly with hot water.

Description

gas water heater

technical field

The utility model relates to the technical field of gas water heaters, in particular to a gas water heater.

Background technique

In the existing gas water heater, after the user finishes using the hot water, there will be hot water remaining in the hot water pipeline. Due to the poor insulation effect of the pipeline, the hot water in the residual pipeline will cool down in a relatively short period of time. . When the user uses the water heater again, because the remaining hot water in the pipeline has cooled or the temperature is low and cannot meet the user's requirements, the user will first release the part of the cold water and wait for a certain period of time before using the hot water again. It not only wastes water, but also is very inconvenient for users who urgently need to use hot water, and the experience is poor. Turning on gas preheating is not only dangerous when the user is not at home, but also does not solve the problem of hot water pipes first when using hot water. Problem with draining cold water.

Utility model content

The main purpose of the utility model is to provide a gas water heater, which aims to ensure that users can quickly use hot water, improve the convenience and timeliness of hot water use, and avoid the danger of gas preheating.

In order to achieve the above purpose, the utility model proposes a gas water heater, which includes a gas main body, a heating pipeline, a water inlet pipeline, a hot water pipeline and a cold water pipeline, and the heating pipeline is arranged on the gas main body , the water inlet pipeline communicates with the hot water pipeline through the heating pipeline, and the water inlet pipeline also communicates with the hot water pipeline through the cold water pipeline; the gas water heater also includes a drive pipe road, circulating water pump, electric auxiliary heating element and control device, the driving pipeline is connected in parallel on the water inlet pipeline, the circulating water pump and the electric auxiliary heating element are respectively arranged on the driving pipeline, and the control device It is electrically connected with the circulating water pump and the electric auxiliary heating element respectively.

Preferably, the water inlet pipeline includes a first connection section communicated with the external waterway and a second connection section communicated with the heating pipeline, the first connection section, the second connection section and the cold water pipeline communication; the driving pipeline is connected in parallel on the second connecting section, and a shut-off valve is arranged on the second connecting section.

Preferably, the first connection section is provided with a first one-way valve for allowing the water flow in the first connection section to flow to the cold water pipeline and the second connection section in one direction, and the first one-way valve At the water outlet, the position of the first one-way valve on the first connection section is set close to the positions of the first connection section and the second connection section.

Preferably, a water inlet valve electrically connected to the control device is provided on the first connection section, and the water inlet valve is located on the water inlet side of the first one-way valve on the first connection section.

Preferably, a plurality of hot water discharge assemblies are arranged on the hot water pipeline for at least providing hot water for bathrooms, washstands, and kitchens.

Preferably, each of the hot water discharge components includes a hot water connection pipe, a cold water connection pipe and a water mixing pipe, one end of the water mixing pipe communicates with the hot water pipeline through the hot water connection pipe, and the water mixing pipe The other end communicates with the cold water pipeline through the cold water connecting pipe, and the water mixing pipe has a water outlet.

Preferably, the hot water pipeline is provided with a second one-way valve corresponding to each of the hot water discharge assemblies, and the water inlet end of the second one-way valve provided corresponding to each of the hot water discharge assemblies corresponds to the hot water discharge assembly One side of the connection position between the medium hot water connecting pipe and the hot water pipeline.

Preferably, the second connection section is further provided with a third one-way valve for allowing the water flow in the second connection section to flow to the heating pipeline in one direction.

Preferably, the driving pipeline is also provided with a fourth one-way valve for allowing the water flow of the driving pipeline to flow to the heating pipeline in one direction.

Preferably, an expansion tank is further arranged on the driving pipeline, and the expansion tank is located at the water inlet side of the circulating water pump at the position of the driving pipeline; the electric auxiliary heating element is arranged in the expansion tank.

In the utility model, a driving pipeline is arranged in parallel on the water inlet pipeline of the gas water heater, and a circulating water pump and an electric auxiliary heating element are arranged on the driving pipeline. When the circulating water pump and the electric auxiliary heating element are started, they can The cold water is heated, and the hot water circulates in the heating pipeline, the hot water pipeline, the cold water pipeline and the water inlet pipeline. In this way, before using the water heater, the user first drives the electric auxiliary heating element in the pipeline. The cold water is preheated, and then the circulating water pump drives the heated water to circulate in the pipeline, and finally the hot water pipeline can be filled with hot water. When the user needs to use hot water, there is no need to discharge heat as in the prior art The hot water can only be used after the cold water in the water pipeline, as long as the hot water tap is turned on, the hot water can be used quickly, which improves the convenience and timeliness of hot water use. Moreover, turning on the electric auxiliary heating element instead of gas preheating can also avoid the dangerous situation of turning on gas heating when people are not at home.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is a schematic structural view of an embodiment of the gas water heater of the present invention.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that if all directional indications (such as up, down, left, right, front, back...) in the embodiment of the present utility model are only used to explain If the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions related to "first", "second" and so on in the present application are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

The utility model provides a gas water heater.

Referring to Fig. 1, in one embodiment of the utility model, the gas water heater includes a gas main body 10, a heating pipeline 20, a water inlet pipeline 30, a hot water pipeline 40 and a cold water pipeline 50, and the heating pipeline 20 is arranged on On the gas main body 10 , the water inlet pipeline 30 communicates with the hot water pipeline 40 through the heating pipeline 20 , and the water inlet pipeline 30 also communicates with the hot water pipeline through the cold water pipeline 50 Road 40 connects. Wherein, the water inlet pipeline 30 is connected to an external tap water pipeline to provide cold water to the heating pipeline 20 and the cold water pipeline 50, and the hot water pipeline 40 is used to provide one or more water outlets for the user's kitchen, bathroom, washstand, etc. Hot water supply is provided. Wherein, the cold water pipeline 50 inputs the cold water from the water inlet pipeline 30 and mixes it with the hot water discharged from the hot water pipeline 40 to adjust the water temperature.

In this embodiment, in order to avoid the problem that the user has to wait for some cold water at the beginning of using the hot water due to the cold water in the heating pipeline 20 when using the gas water heater, the gas water heater also includes a driving pipeline 60, a circulating water pump 70. Electric auxiliary heating element 80 and control device (not shown in the figure), the driving pipeline 60 is connected in parallel with the water inlet pipeline 30, that is, both ends of the driving pipeline 60 are connected with the water inlet pipeline 30; The circulating water pump 70 and the electric auxiliary heating element 80 are respectively arranged on the driving pipeline 60 , and the control device is electrically connected to the circulating water pump 70 and the electric auxiliary heating element 80 respectively.

In this embodiment, before the hot water is used, since the water inlet pipeline 30 is not filled with water, the water inlet pipeline 30, the heating pipeline 20, the hot water pipeline 40 and the cold water pipeline 50 form a closed-loop pipeline, and the electric circuit is controlled by the control device. The auxiliary heating element 80 and the circulating water pump 70 are turned on, which can preheat the cold water remaining in the driving pipeline 60 in advance, and the heated water flow is driven by the circulating water pump 70 in the water inlet pipeline 30, the heating pipeline 20, and the hot water pipeline 40. And the circulating flow in the closed-loop pipeline formed by the cold water pipeline 50 can finally make the hot water pipeline 40 full of hot water. When the user needs to use hot water, it is not necessary to discharge the hot water pipeline 40 The hot water can only be used after the cold water is turned on, and the user can quickly use the hot water by turning on the hot water faucet, realizing zero cold water discharge, and improving the convenience and timeliness of hot water use. Moreover, turning on the electric auxiliary heating element 70 instead of gas preheating can avoid the dangerous situation of turning on gas heating when people are not at home.

In addition, when a large amount of hot water needs to be used, the electric auxiliary heating element 80 and the circulating water pump 70 are controlled to turn on for auxiliary heating, which can also improve the efficiency of hot water heating and meet the needs of users, and the circulating water pump 70 can also increase the water pressure to achieve Ultra-distance heating.

In the above embodiment, the specific structure of the water inlet pipeline 30 is not limited. In a preferred embodiment, the water inlet pipeline 30 includes a first connecting section 31 communicating with the external waterway and communicating with the heating pipeline 20. The second connecting section 32, the first connecting section 31, the second connecting section 32 communicate with the cold water pipeline 50; the driving pipeline 60 is connected to the second connecting section 32 in parallel.

In this embodiment, further, the second connecting section 32 is provided with a cut-off valve 101, which is used to stabilize and limit the flow of water flowing to the heating pipeline 20, so as to prevent the water flow from being too large, When it is too fast, it will cause impact on the heating pipeline 20, resulting in uneven heating, and the hot water will be hot and cold.

In this embodiment, further, the first connecting section 31 is provided with a first one-way valve 102, and the first one-way valve 102 is used to allow the water flow in the first connecting section 31 to flow to the cold water pipe in one direction. The passage 50 and the second connecting section 32 , the position of the first one-way valve 102 on the first connecting section 31 is set close to the positions of the first connecting section 31 and the second connecting section 32 . The first one-way valve 102 can be opened by the circulating water pump 70 to prevent the water in the cold water pipeline 50 from flowing back into the first connecting section 31 of the water inlet pipeline 30 .

In this embodiment, further, the first connection section 31 is provided with a water inlet valve 103 electrically connected to the control device, and the water inlet valve 103 is located on the first connection section 31 at the first The water inlet side of a one-way valve 102. The water inlet valve 103 controls the water inlet of the water inlet pipeline 30 under the control of the control device.

In this embodiment, further, the second connection section 32 is also provided with a third one-way valve 104, allowing the water flow of the second connection section 32 to flow into the heating pipeline 20 in one direction, so as to avoid backflow and reduce heating efficiency .

In the above embodiments, the hot water pipeline 40 is provided with a plurality of hot water discharge assemblies for at least providing hot water for bathrooms, washstands, and kitchens.

In this embodiment, preferably, each of the hot water discharge components includes a hot water connecting pipe 201, a cold water connecting pipe 202 and a water mixing pipe 203, and one end of the water mixing pipe 203 is connected to the hot water connecting pipe 201 and the hot water connecting pipe 201. The water pipeline 40 communicates, and the other end of the water mixing pipe 203 communicates with the cold water pipeline 50 through the cold water connecting pipe 202. The water mixing pipe 203 has a water outlet, and the water outlet of the water mixing pipe 203 is used to connect flowers. Sprinklers, faucets, etc.

In this embodiment, each hot water discharge assembly can output the hot water heated by the gas water heater into multiple channels, so as to provide users with comprehensive hot water supply.

In this embodiment, further, the hot water pipeline 40 is provided with a second one-way valve 204 corresponding to each of the hot water discharge assemblies, and the second one-way valve 204 provided corresponding to each of the hot water discharge assemblies The water inlet port corresponds to the side where the hot water connecting pipe 201 and the hot water pipeline 40 are connected in the hot water discharge assembly, that is, the second one-way valve 204 is located between the hot water connecting pipe 201 and the hot water pipeline 40 The hot water downstream side of the connection location. The water flow of the second one-way valve 204 for the hot water pipeline 40 flows from one end connected to the heating pipeline 20 to the cold water pipeline 50 connected to the cold water pipeline 50 . The setting of the second one-way valve 204 can ensure that the cold and hot water pipes do not cross water and ensure the normal use of the cold and hot water.

In the above embodiment, further, the driving pipeline 60 is further provided with an expansion tank 90 , and the expansion tank 90 is located at the water inlet side of the circulating water pump 70 at the position of the driving pipeline 60 . The expansion tank 90 can store water. When the circulating water pump 70 works to drive water to flow in each pipeline, if there is air or negative pressure in the waterway, the water flow to the heating pipeline 20 may be intermittent, resulting in low heating efficiency. , and there is a situation of dry heating of the heating pipeline 20, which reduces the life of the heating pipeline 20.

In this embodiment, the electric auxiliary heating element 70 is arranged in the expansion water tank 90 , and the expansion water tank 90 has a larger volume, which facilitates the installation of electric auxiliary heating elements 70 of more sizes.

In the above embodiment, further, the driving pipeline 60 is also provided with a fourth one-way valve 105, the fourth one-way valve 105 allows the water flow of the driving pipeline 60 to flow to the heating pipeline 20 in one direction, so as to avoid heating pipes The water flow in the second connecting section 32 of the road 20 and the water inlet pipeline 30 flows back to the driving pipeline 60 to avoid the cold and hot water flowing in series.

The above is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Under the utility model concept of the utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, Or directly/indirectly used in other related technical fields are all included in the patent protection scope of the present utility model.

Claims (10)

1. A gas water heater, comprising a gas main body, a heating pipeline, a water inlet pipeline, a hot water pipeline and a cold water pipeline, the heating pipeline is arranged on the gas main body, and the water inlet pipeline passes through the heating The pipeline communicates with the hot water pipeline, and the water inlet pipeline also communicates with the hot water pipeline through the cold water pipeline; it is characterized in that the gas water heater also includes a driving pipeline, a circulating water pump, an electric Auxiliary heating element and control device, the driving pipeline is connected in parallel on the water inlet pipeline, the circulating water pump and the electric auxiliary heating element are respectively arranged on the driving pipeline, the control device is connected with the circulating water pump and the The electric auxiliary heating elements are electrically connected respectively. 2. The gas water heater according to claim 1, characterized in that, the water inlet pipeline includes a first connecting section communicating with the external waterway and a second connecting section communicating with the heating pipeline, and the first connecting section section, the second connecting section and the cold water pipeline communicate with each other; the driving pipeline is connected in parallel on the second connecting section, and a shut-off valve is arranged on the second connecting section. 3. The gas water heater according to claim 2, characterized in that, the first connecting section is provided with a first connecting section for the water flow in the first connecting section to flow in one direction to the cold water pipeline and the second connecting section. A one-way valve, the water outlet end of the first one-way valve, the position of the first one-way valve on the first connecting section is set close to the position of the first connecting section and the second connecting section . 4. The gas water heater according to claim 3, wherein a water inlet valve electrically connected to the control device is provided on the first connection section, and the water inlet valve is on the first connection section It is on the water inlet side of the first one-way valve. 5. The gas water heater according to claim 1, characterized in that, a plurality of hot water discharge assemblies are arranged on the hot water pipeline for at least providing hot water for bathrooms, washstands and kitchens. 6. The gas water heater as claimed in claim 5, wherein each of the hot water discharge components comprises a hot water connection pipe, a cold water connection pipe and a water mixing pipe, one end of the water mixing pipe passes through the hot water connection pipe and The hot water pipeline is connected, the other end of the mixed water pipe is connected with the cold water pipeline through the cold water connecting pipe, and the mixed water pipe has a water outlet. 7. The gas water heater according to claim 6, wherein a second one-way valve is provided corresponding to each of the hot water discharge assemblies on the hot water pipeline, and a second one-way valve is provided corresponding to each of the hot water discharge assemblies. The water inlet end of the one-way valve corresponds to the side where the hot water connecting pipe and the hot water pipeline are connected in the hot water discharge assembly. 8. The gas water heater according to claim 3, characterized in that, the second connecting section is also provided with a third one-way valve for the water flow in the second connecting section to flow to the heating pipeline in one direction . 9 . The gas water heater according to claim 1 , wherein a fourth one-way valve is provided on the driving pipeline for the water flow of the driving pipeline to flow to the heating pipeline in one direction. 10. The gas water heater according to any one of claims 1 to 9, characterized in that an expansion tank is also arranged on the driving pipeline, and the expansion tank is located at the position of the driving pipeline on the side of the circulating water pump. Water inlet side: the electric auxiliary heating element is arranged in the expansion water tank.