CN213454213U - Gas heating water heater - Google Patents

Abstract

The utility model belongs to the technical field of the fluid heating, concretely relates to gas heating water heater. The utility model discloses the flow that aims at solving the domestic water of current gas heating water heater is low excessively, leads to the combustor can not normally light a fire the start or the too high problem of domestic temperature degree. The utility model discloses a gas heating water heater includes first heat exchanger, first inlet tube and first outlet pipe, be provided with the discharge detector on the first inlet tube, install first booster pump on the first outlet pipe, the controller is according to the discharge of the first inlet tube of received discharge detector detection, the operating condition of the first booster pump of control, to the hot water pressure boost of first outlet pipe exhaust life, life hydrothermal discharge accelerates, avoid discharge to lead to the combustor can not normally start or the overheated problem of life hot water excessively low excessively, widen gas heating water heater life hydrothermal flow range, improve the water travelling comfort, and then improve user experience.

Description

Gas heating water heater

Technical Field

The utility model belongs to the technical field of the fluid heating, concretely relates to gas heating water heater.

Background

The gas heating water heater uses natural gas, artificial gas or liquefied gas as fuel, and burns to generate heat, and heats water by the heat exchanger, and the hot water can provide heat source for buildings and can be discharged as domestic water for bathing.

In the process of heating water by the heat exchanger, tap water enters the heat exchanger through the domestic water inlet pipe to be heated and then is discharged through the domestic water outlet pipe, and the flow of the domestic water is determined by the pressure of a tap water pipeline. However, the water pressure of tap water is unstable, and when the pressure of a tap water pipeline is too low, the domestic water flow is too small, so that the burner cannot be normally ignited and started; even if the combustor starts, the domestic water flows and is low and lead to the domestic water temperature too high, influences user experience degree.

Accordingly, there is a need in the art for a new gas-fired water heater to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, the flow of the domestic water who is solving current gas heating water heater is low excessively for, and leads to the combustor can not normally light a fire the start or the domestic water temperature is too high, influences user experience's problem, the utility model provides a gas heating water heater.

The gas heating water heater includes: the method comprises the following steps: the water pump comprises a first heat exchanger, a first water inlet pipe, a first water outlet pipe, a first booster pump, a controller and a first water flow detector; the inlet of the first heat exchanger is communicated with the first water inlet pipe, and the first water flow detector is arranged on the first water inlet pipe; an outlet of the first heat exchanger is communicated with the first water outlet pipe, and the first booster pump is mounted on the first water outlet pipe; the controller is respectively in communication connection with the first water flow detector and the first booster pump, and the controller is used for controlling the working state of the first booster pump according to the water flow detected by the first water flow detector.

In an optional technical scheme of the gas heating water heater, the gas heating water heater further comprises a pressurization pipeline and a water outlet valve, wherein the water outlet valve is provided with an inlet, a first outlet and a second outlet; the inlet of the water outlet valve is communicated with the outlet of the first heat exchanger through the first water outlet pipe, the first outlet of the water outlet valve is communicated with the inlet of the first booster pump, and the second outlet of the water outlet valve is communicated with the outlet of the first booster pump through the booster pipeline.

In an optional technical scheme of the above gas heating water heater, the gas heating water heater further includes a first pressurizing joint, the first pressurizing joint includes a first joint pipeline and a first joint and a second joint located at two ends of the first joint pipeline, and the first joint and the second joint are respectively communicated with the first outlet of the water outlet valve and one end of the pressurizing pipeline.

In the above-mentioned optional technical scheme of gas heating water heater, gas heating water heater still includes the second pressure boost and connects, the second pressure boost connects including the second joint pipeline and is located the third connector and the fourth connector at second joint pipeline both ends, the third connector with the fourth connector respectively with the second export of outlet valve the other end intercommunication of pressure boost pipeline.

In an optional technical scheme of the gas-fired heating water heater, the gas-fired heating water heater further comprises a first temperature detector, and the first temperature detector is arranged outside the pressurization pipeline; the first temperature detector is used for detecting the water temperature of the first water outlet pipe.

In an optional technical scheme of the gas heating water heater, the gas heating water heater further comprises an installation support and a base, the top end of the installation support is fixedly connected with the first booster pump, and the bottom end of the installation support is fixed in the base.

In the above optional technical scheme of the gas heating water heater, a shock pad is arranged between the mounting bracket and the base, and a shock pad is arranged between the mounting bracket and the first booster pump.

In an optional technical scheme of the gas heating water heater, the gas heating water heater further comprises a second water flow detector, the second water flow detector is mounted on the first water outlet pipe, and the second water flow detector is used for detecting water flow after the first booster pump is boosted; the controller is also used for controlling the working state of the first booster pump according to the water flow detected by the second water flow detector.

In an optional technical scheme of the gas heating water heater, the gas heating water heater further comprises a main water outlet pipe, a heating pipeline, a burner and a second heat exchanger, wherein the second heat exchanger is positioned above the burner, and the heating pipeline comprises a heating water outlet pipe, a heating water return pipe and a circulating pipe; one end of the main water outlet pipe is communicated with an outlet of the second heat exchanger, the other end of the main water outlet pipe is connected with an electromagnetic three-way valve, two outlets of the electromagnetic three-way valve are respectively connected with the heating water outlet pipe and the first heat exchanger, and the first heat exchanger and the heating water return pipe are communicated with an inlet of the second heat exchanger through the circulating pipe; the circulating pipe is also provided with a second temperature detector; the controller is respectively in communication connection with the second temperature detector and the electromagnetic three-way valve, and the controller is used for controlling the opening and closing state of the electromagnetic three-way valve according to the temperature detected by the second temperature detector.

In the above-mentioned optional technical scheme of the gas-fired heating water heater, a heating booster pump and a water pressure detector are arranged on the circulating pipe, and the water pressure detector is positioned at one end of an inlet of the heating booster pump; the controller respectively with heating booster pump, water pressure detector communication connection, the controller still is used for according to the water pressure control that water pressure detector detected heating booster pump operating condition.

The technical personnel in the field can understand, the utility model discloses a gas heating water heater includes first heat exchanger, first inlet tube and first outlet pipe, the water inlet of first heat exchanger, the delivery port respectively with first inlet tube, first outlet pipe intercommunication, be provided with the discharge detector on the first inlet tube, install first booster pump on the first outlet pipe, the controller is according to the discharge of the first inlet tube that received discharge detector detected, the operating condition of the first booster pump of control, to the hot water pressure boost of first outlet pipe exhaust life, life hydrothermal discharge accelerates, avoid discharge low excessively to lead to the combustor can not normally start or the overheated problem of life hot water, widen gas heating water heater life hydrothermal flow range, improve the water travelling comfort, and then improve user experience degree.

Drawings

An alternative preferred embodiment of the gas-heating water heater of the present invention will be described with reference to the accompanying drawings. The attached drawings are as follows:

fig. 1 is a schematic view of a gas heating water heater according to the present invention;

fig. 2 is a schematic structural view of the water inlet end, the water outlet end and the first heat exchanger of the gas heating water heater of the present invention;

fig. 3 is a left side view of fig. 2.

In the drawings: 1. a first heat exchanger; 2. a first water inlet pipe; 3. a first water outlet pipe; 4. a first booster pump; 41. a pressurization pipeline; 42. a first booster fitting; 421. a first connector pipe, 422, a first connector; 423. a second connector; 43. a second pressurized joint; 431. A second joint pipe, 432, a third joint; 433. a fourth connector; 44. mounting a bracket; 5. a first water flow rate detector; 6. a water outlet valve; 7. a first temperature detector; 91. a water outlet pipe is arranged; 92. a water inlet main pipe; 10. a heating water supplementing pipe; 101. a heating water outlet pipe; 102. a heating water return pipe; 103. a circulation pipe; 11. a burner; 111. a gas supply duct; 12. a second heat exchanger; 13. an electromagnetic three-way valve; 14. a heating booster pump; 15. a water pressure detector; 16. a second temperature detector; 17. a fan; 18. a water inlet valve.

Detailed Description

First of all, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The gas heating water heater comprises two pipeline systems, a domestic water pipeline and a heating water pipeline. Wherein, the water pipeline is used in the heating includes the heating inlet tube, the heating outlet pipe, heating pipeline and circulation pipeline, and the running water gets into the heat exchanger through the heating inlet tube to the heating outlet pipe, heating pipeline and circulation pipeline fill water, and the water of heat exchanger heating gets into the heating pipeline via the heating outlet pipe, and the water of heating pipeline heats the building, and the circulation pipeline that flows in, circulation pipeline returns water to the heat exchanger and carries out the heat transfer, so realizes the hydrologic cycle of heating. The domestic water pipeline comprises a domestic water inlet pipe and a domestic water outlet pipe, tap water enters the heat exchanger through the domestic water inlet pipe for heat exchange, and hot water is discharged through the domestic water outlet pipe for users to use. The flow of domestic water is determined by the pressure of the tap water pipeline. However, the water pressure of tap water is unstable, and when the pressure of a tap water pipeline is too low, the domestic water flow is too small, so that the burner cannot be normally ignited and started; even if the combustor starts, the domestic water flows and leads to the domestic water temperature too high excessively, seriously influences user experience degree.

In view of this, the utility model provides a gas heating water heater is through being provided with the booster pump on the life outlet pipe, and install water flow sensor at the life inlet tube, and the control mainboard of gas heating water heater controls the operating condition of booster pump according to the life water flow control that water flow sensor detected, when the life water flow that water flow sensor detected is less than the default, control booster pump start, increase the flow of life hot water, increase the flow range of gas heating water heater life hot water, improve the water use travelling comfort, and then improve user experience degree; the problem that the burner cannot be started normally or domestic hot water is overheated due to too low water flow is avoided.

The preferred technical scheme of the gas heating water heater of the utility model is explained below.

Fig. 1 is a schematic view of a gas heating water heater according to the present invention; fig. 2 is a schematic structural view of the water inlet end, the water outlet end and the first heat exchanger of the gas heating water heater of the present invention; fig. 3 is a left side view of fig. 2.

As shown in fig. 1 to 3, the gas heating water heater of the present invention includes: the system comprises a first heat exchanger 1, a first water inlet pipe 2, a first water outlet pipe 3, a first booster pump 4, a controller and a first water flow detector 5; an inlet of the first heat exchanger 1 is communicated with a first water inlet pipe 2, and a first water flow detector 5 is arranged on the first water inlet pipe 2; an outlet of the first heat exchanger 1 is communicated with a first water outlet pipe 3, and a first booster pump 4 is installed on the first water outlet pipe 3; the controller is respectively connected with the first water flow detector 5 and the first booster pump 4 in a communication mode, and the controller is used for controlling the working state of the first booster pump 4 according to the water flow detected by the first water flow detector 5.

Wherein, the water inlet and the delivery port of first heat exchanger 1 communicate with first inlet tube 2, first outlet pipe 3 respectively, and first heat exchanger 1 is used for heating the cold water that first inlet tube 2 let in to hot water through the heat transfer, discharges through first outlet pipe 3. Optionally, the first heat exchanger 1 is a plate heat exchanger, and the heat exchange efficiency is high. The utility model discloses do not limit to the water inlet of first heat exchanger 1 and the connected mode of first inlet tube 2, the delivery port of first heat exchanger 1 and the connected mode of first delivery port 3, it can be screwed joint connection, flange joint connection etc..

The utility model discloses in, first inlet tube 2 is used for letting in microthermal domestic water. A first water flow detector 5 is arranged on the first water inlet pipe 2 and used for detecting the water flow of the first water inlet pipe 2. The first water flow rate detector 5 may be an existing flow rate detecting device, and is not limited thereto. And, the first water flow rate detector 5 is connected with the controller in communication, and the first water flow rate detector 5 transmits the detected water flow rate to the controller.

In the utility model, the first water outlet pipe 3 is used for discharging the heated domestic water. The first water outlet pipe 3 is provided with a first booster pump 4 for increasing the water flow pressure on the first water outlet pipe 3. For example, the first booster pump 4 may be a dc variable frequency water pump, which is small in size and convenient to install. Of course, the type of the first booster pump 4 is not limited thereto. The first booster pump 4 is in communication with the controller, and adjusts the operation state, for example, opening, closing, increasing the rotation speed, decreasing the rotation speed, etc., according to a control signal sent by the controller.

It should be understood that the water inlet and the water outlet of the first booster pump 4 are respectively connected with the first water outlet pipe 3, that is, the first water outlet pipe 3 comprises two sections of pipelines, and the first booster pump 4 is located between the two pipelines. The water inlet and outlet of the first booster pump 4 are connected in a sealing manner, so that liquid leakage is avoided to influence the operation of the equipment.

The gas heating water heater also comprises a controller used for controlling the working state of the gas heating water heater. The controller of this embodiment is connected with first water flow detector 5, first booster pump 4 communication respectively, and the operating condition of first booster pump 4 is controlled according to the water flow that receives first water flow detector 5 and detect to the controller. For example, when the flow rate of the first water inlet pipe 2 detected by the first water flow rate detector 5 is less than a preset value, and at this time, the gas-fired heating water heater cannot be normally started, the controller controls the first booster pump 4 to be started and operates at a preset rotation speed, so as to increase the water flow rate of the first water outlet pipe 3.

It will be appreciated that the controller has integrated memory therein. The memory may store a program of a calculation model of a water flow preset value and a preset rotation speed of the first booster pump 4, and the controller calls the calculation model program stored in advance according to the received water flow to obtain a rotation speed value of the first booster pump 4 and send a control signal to the first booster pump 4. Of course, a plurality of groups of data of the preset water flow value and the preset rotating speed of the first booster pump 4 can be stored in the memory, and the water flow value in a certain range corresponds to the rotating speed of the first booster pump 4, so that the control is convenient.

The embodiment of the utility model provides a gas heating water heater, including first heat exchanger 1, first inlet tube 2 and first outlet pipe 3, the water inlet of first heat exchanger 1, the delivery port respectively with first inlet tube 2, first outlet pipe 3 intercommunication, be provided with first water flow detector 5 on the first inlet tube 2, install first booster pump 4 on the first outlet pipe 3, the controller is according to the water flow of the first inlet tube 2 that received flow detector 5 detected, control the operating condition of first booster pump 4, to the hot water pressure boost of first outlet pipe 3 exhaust life, life hydrothermal discharge with higher speed, avoid water flow to lead to the combustor can not normally start or the overheated problem of life hot water excessively low, widen gas heating water heater life hydrothermal flow range, improve the water travelling comfort, and then improve user experience degree.

On the basis of the above embodiment, with continued reference to fig. 1 to 3, the gas-fired heating water heater of the present embodiment further includes a pressure increasing pipeline 41 and a water outlet valve 6, wherein the water outlet valve 6 has an inlet, a first outlet and a second outlet; an inlet of the water outlet valve 6 is communicated with an outlet of the first heat exchanger 1 through the first water outlet pipe 3, a first outlet of the water outlet valve 6 is communicated with an inlet of the first booster pump 4, and a second outlet of the water outlet valve 6 is communicated with an outlet of the first booster pump 4 through the booster pipeline 41.

The water outlet valve 6 is used for controlling domestic hot water discharged from the water outlet of the first heat exchanger 1, and may be integrated with an electromagnetic three-way valve 13 to be described below to form a water outlet valve assembly. Compared with the existing water outlet valve, the middle water outlet valve 6 of the utility model is additionally provided with two outlets, namely a first outlet and a second outlet; a first channel is formed between the first outlet and the air inlet; the outlet valve 6 also comprises a domestic hot water outlet, i.e. port a in fig. 1 and 2, for discharging domestic hot water; a second channel is formed between the domestic hot water outlet and the second outlet, and the second channel is isolated from the first channel. The first outlet is used for connecting the inlet of the first booster pump 4, the domestic hot water discharged from the water outlet of the first heat exchanger 1 enters the first booster pump 4 through the first channel for pressurization, the domestic hot water pressurized by the first booster pump 4 returns to the second outlet of the water outlet valve 6 through the pressurization pipeline 41, and is discharged to the port A through the second channel, and the pressurized domestic hot water is discharged.

It should be noted that the connection between the water inlet and the water outlet of the first booster pump 4 and the two ends of the booster pipeline 41 are sealed.

In the embodiment, by arranging the pressurization pipeline 41, under the condition that the original installation position of the water outlet valve 6 is not changed, the domestic hot water with thick pressurization is discharged from the original domestic hot water outlet (namely, the port A), the structural change of the gas heating water heater is reduced, and the design cost is reduced. Also, the provision of the booster line 41 contributes to an improvement in the flexibility of the mounting position of the first booster pump 4.

In one specific implementation manner, the gas-fired heating water heater further includes a first pressure boosting joint 42, the first pressure boosting joint 42 includes a first joint pipe 421, and a first joint 422 and a second joint 423 which are located at two ends of the first joint pipe 421, and the first joint 422 and the second joint 423 are respectively communicated with the first outlet of the water outlet valve 6 and one end of the pressure boosting pipeline 41.

The first pressurizing joint 42 can be an existing pipeline connector, and is simple and convenient to connect and low in cost. In this embodiment, referring to fig. 2, the first pressurizing joint 42 includes a first joint pipe 421, and a first joint 422 and a second joint 423 disposed at two ends of the first joint pipe 421, wherein the first joint pipe 421 may be an elbow, for example, the first joint pipe 421 is an L-shaped pipe, which facilitates the connection of the first pressurizing joint 42 and the arrangement of the pressurizing pipe 41. However, the first connecting pipe 421 is not limited thereto, and can be set by those skilled in the art according to the actual situation.

First connector 422 and second connector 423 are an integral piece with first connector pipe 421, improving the structural strength of first booster fitting 42. First coupling 422 and second coupling 423 may be threaded couplings and first coupling 422 and second coupling 423 may also be flanged couplings. It should be emphasized here that the connection of the first connection 422 with the first outlet of the outlet valve 6 and the connection of the second connection 423 with one end of the booster duct 41 are all sealed connections.

In this implementation, the first outlet of the water outlet valve 6 and the booster pipe 41 are connected by the first booster joint 42, so that the flexibility of the installation positions of the booster pipe 41 and the first booster pump 4 is improved, and the cost increase caused by excessively changing the structure of the existing gas heating water heater is avoided.

In one specific implementation manner, the gas-fired heating water heater further includes a second pressure-increasing joint 43, the second pressure-increasing joint 43 includes a second joint pipe 431 and a third joint 432 and a fourth joint 433 which are located at two ends of the second joint pipe 431, and the third joint 432 and the fourth joint 433 are respectively communicated with the second outlet of the water outlet valve 6 and the other end of the pressure-increasing pipeline 41.

The second pressurizing joint 43 can be an existing pipeline connector, and is simple and convenient to connect and low in cost. In this embodiment, referring to fig. 3, second pressure boosting joint 43 includes a second joint conduit 431, and a third joint 432 and a fourth joint 433 disposed at two ends of second joint conduit 431, where second joint conduit 431 may be an elbow, for example, second joint conduit 431 is a Z-shaped conduit, which facilitates both connection of second pressure boosting joint 43 and arrangement of pressure boosting conduit 41. However, the second connecting conduit 431 is not limited thereto, and those skilled in the art can arrange it according to the actual situation.

The third connector 432, the fourth connector 433 and the second connector pipeline 431 are integrally formed, so that the structural strength of the second booster connector 43 is improved. The third connector 432 and the fourth connector 433 may be screw connectors, and the third connector 432 and the fourth connector 433 may also be flange connectors. It should be emphasized here that the third connection head 432 is connected with the second outlet of the water outlet valve 6, and the fourth connection head 433 is connected with the other end of the pressure increasing pipe 41 in a sealing manner.

In this implementation, the second outlet of the water outlet valve 6 and the booster pipe 41 are connected by the second booster joint 43, so that the flexibility of the installation positions of the booster pipe 41 and the first booster pump 4 is improved, and the cost increase caused by excessively changing the structure of the existing gas heating water heater is avoided.

In some possible examples, the gas-fired heating water heater further includes a first temperature detector 7, the first temperature detector 7 being disposed outside the pressurization line 41; the first temperature detector 7 is used for detecting the water temperature of the first water outlet pipe 3.

In order to make the water temperature of the first water outlet pipe 3 detected by the first temperature detector 7 more accurate, the pressurizing pipeline 41 is a copper pipe, which is beneficial to temperature transmission. The first temperature detector 7 comprises a temperature sensing element attached to the surface of the copper pipe so as to represent the temperature of the water in the first water outlet pipe 3.

The controller is in communication connection with the first temperature detector 7, and controls the opening and closing state of the subsequent electromagnetic three-way valve 13 according to the received water temperature detected by the first temperature detector 7, so that the water temperature of the first water outlet pipe 3 is more comfortable. Alternatively, the controller displays the received water temperature detected by the first temperature detector 7 on a display panel of the gas heating water heater.

In some embodiments, the gas-fired water heater further includes a mounting bracket 44 and a base, wherein the top end of the mounting bracket 44 is fixedly connected with the first booster pump 4, and the bottom end of the mounting bracket 44 is fixed in the base. That is, the first booster pump 4 is fixed to the base by the mounting bracket 44. The mounting bracket 44 may be connected to the first booster pump 4 by fastening screws, and connected to the base by fastening members, thereby increasing the reliability of the mounting of the first booster pump 4.

The utility model discloses do not limit to the structure of installing support 44, actual conditions such as field technical personnel can be according to installation space set up. For example, the mounting bracket 44 includes a mounting plate fixedly connected to the first booster pump 4 and the base, and a reinforcing plate disposed on the mounting plate to increase the structural strength and stability of the mounting bracket 44.

Further, a shock absorption pad is arranged between the mounting bracket 44 and the base, and the shock absorption pad is arranged between the mounting bracket 44 and the first booster pump 4, so that the shock caused by the operation of the first booster pump 4 is relieved, and the noise generated by the operation of the first booster pump 4 is reduced.

In some specific embodiments, the gas-fired heating water heater further comprises a second water flow detector, the second water flow detector is mounted on the first water outlet pipe 3, and the second water flow detector is used for detecting the water flow after the first booster pump 4 is boosted, that is, the second water flow detector is located between the water outlet and the domestic hot water outlet of the first booster pump 4. The controller of this embodiment is still used for the discharge that detects according to second discharge detector and the operating condition of controlling first booster pump 4, that is to say, the controller is according to the operating condition of the first booster pump 4 of the actual discharge of hot water flow control of life, so makes the user adjust the hydrothermal flow of life according to actual demand, widens gas heating water heater domestic hot water's flow range, improves the water travelling comfort, further improves user experience degree.

With continuing reference to fig. 1-3, the heating circuit of the present invention is described below. The gas-fired heating water heater of the embodiment further comprises a main water outlet pipe 91, a heating pipeline, a burner 11 and a second heat exchanger 12, wherein the second heat exchanger 12 is positioned above the burner 11, and the heating pipeline comprises a heating water outlet pipe 101, a heating water return pipe 102 and a circulating pipe 103; one end of the main water outlet pipe 91 is communicated with an outlet of the second heat exchanger 12, the other end of the main water outlet pipe 91 is connected with an electromagnetic three-way valve 13, two outlets of the electromagnetic three-way valve 13 are respectively connected with a heating water outlet pipe 101 and a first heat exchanger 1, and the first heat exchanger 1 and a heating water return pipe 102 are communicated with an inlet of the second heat exchanger 12 through a circulating pipe 103.

Specifically, the utility model discloses a gas heating water heater includes inlet manifold 92, and inlet manifold 92's the end of intaking is B port in figure 1. The water inlet main 92 is connected to a heating water supply pipe 10 and a first water inlet pipe 2, wherein the heating water supply pipe 10 is connected to a heating water return pipe 102 for supplying water to a heating circulation pipeline. The water in the heating water return pipe 102 and the water after heat exchange with the first heat exchanger 1 are introduced into the second heat exchanger 12 through the circulation pipe 103, heat exchange is performed through the second heat exchanger 12, and the high-temperature water is discharged through the water outlet header pipe 91. One of the outlets of the electromagnetic three-way valve 13 is communicated with the first heat exchanger 1, so that the high-temperature water exchanges heat with the domestic cold water introduced from the first water inlet pipe 2, the domestic cold water is heated into domestic hot water, the domestic hot water is discharged through the first water outlet pipe 3, and the high-temperature water is changed into low-temperature water and then returns to the second heat exchanger 12 through the circulating pipe 103 for heating. The other outlet of the electromagnetic three-way valve 13 is communicated with a heating water outlet pipe 101 for discharging heating hot water, and a port C thereof is a discharge port of the heating hot water. The port D is a return water port for heating hot water, a heating load is arranged between the port C and the port D, and the heating load can be a heating plate, a floor heating system and the like.

With continued reference to fig. 1, the burner 11 includes a gas supply duct 111 for supplying gas. And a fan 17 is provided above the second heat exchanger 12 to discharge the flue gas generated by the combustion 11.

The circulation pipe 103 of the present embodiment is provided with a second temperature detector 16; the controller is in communication connection with the second temperature detector 16 and the electromagnetic three-way valve 13 respectively, and is used for controlling the opening and closing state of the electromagnetic three-way valve 13 according to the temperature detected by the second temperature detector 16 and controlling the water amount entering the heating water blowing pipe 101 and the first heat exchanger 1. When the temperature on the circulating pipe 103 detected by the second temperature detector 16 is lower than the preset value, the controller controls the electromagnetic three-way valve 13 to increase the water amount entering the first heat exchanger 1, so that the phenomenon that the air of the second heat exchanger 12 generates condensed water due to too low return water temperature is avoided, a better protection effect is achieved on the combustor 11, and the service life is prolonged.

In addition, a heating booster pump 14 and a water pressure detector 15 are arranged on the circulating pipe 103, and the water pressure detector 15 is positioned at one end of an inlet of the heating booster pump 14; the controller is respectively connected with the heating booster pump 14 and the water pressure detector 15 in a communication mode, and the controller is further used for controlling the working state of the heating booster pump 14 according to the water pressure detected by the water pressure detector 15.

In the embodiment, the heating booster pump 14 is arranged on the circulating pipe 103 to increase the water pressure between the circulating pipe 103 and the second heat exchanger 12, so that the circulation of heating return water is accelerated, and the heating efficiency is improved.

The gas-heating water heater in this embodiment further includes a water inlet valve 18 for controlling the introduction of domestic water and heating water. The water inlet valve 18 is communicated with the first water inlet pipe 2 through a port F and is used for introducing domestic water; the water inlet valve 18 communicates with the heating water return pipe 102 through the port D for returning the heating water.

In the actual installation process, the warming booster pump 14 is installed on the side of the water inlet valve 18, so that the large noise caused by the too close distance between the warming booster pump 14 and the first booster pump 4 is avoided.

To sum up, the utility model discloses a gas heating water heater, including first heat exchanger 1, first inlet tube 2 and first outlet pipe 3, the water inlet of first heat exchanger 1, the delivery port respectively with first inlet tube 2, first outlet pipe 3 intercommunication, be provided with water flow detector 5 on the first inlet tube 2, install first booster pump 4 on the first outlet pipe 3, the controller is according to the water flow of the first inlet tube 2 that received flow detector 5 detected, control the operating condition of first booster pump 4, to the hot water pressure boost of the first 3 exhaust life of outlet pipe, life hydrothermal discharge with higher speed, avoid water flow to lead to the combustor can not normally start or the overheated problem of life hot water low excessively, widen gas heating water heater life hydrothermal flow range, improve the water travelling comfort, and then improve user experience degree.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A gas heating water heater, characterized by that includes: the water pump comprises a first heat exchanger, a first water inlet pipe, a first water outlet pipe, a first booster pump, a controller and a first water flow detector;

the inlet of the first heat exchanger is communicated with the first water inlet pipe, and the first water flow detector is arranged on the first water inlet pipe; an outlet of the first heat exchanger is communicated with the first water outlet pipe, and the first booster pump is mounted on the first water outlet pipe;

the controller is respectively in communication connection with the first water flow detector and the first booster pump, and the controller is used for controlling the working state of the first booster pump according to the water flow detected by the first water flow detector.

2. The gas-fired heating water heater according to claim 1, further comprising a pressurization line and a water outlet valve having an inlet, a first outlet, and a second outlet; the inlet of the water outlet valve is communicated with the outlet of the first heat exchanger through the first water outlet pipe, the first outlet of the water outlet valve is communicated with the inlet of the first booster pump, and the second outlet of the water outlet valve is communicated with the outlet of the first booster pump through the booster pipeline.

3. The gas-fired heating water heater according to claim 2, further comprising a first pressurizing joint, wherein the first pressurizing joint comprises a first joint pipeline and a first joint and a second joint which are arranged at two ends of the first joint pipeline, and the first joint and the second joint are respectively communicated with the first outlet of the water outlet valve and one end of the pressurizing pipeline.

4. The gas-fired heating water heater according to claim 2, further comprising a second pressurizing joint, wherein the second pressurizing joint comprises a second joint pipeline, and a third joint and a fourth joint which are positioned at two ends of the second joint pipeline, and the third joint and the fourth joint are respectively communicated with the second outlet of the water outlet valve and the other end of the pressurizing pipeline.

5. The gas-fired heating water heater according to claim 2, further comprising a first temperature detector disposed outside the boost pipe; the first temperature detector is used for detecting the water temperature of the first water outlet pipe.

6. The gas-fired heating water heater according to claim 1, further comprising a mounting bracket and a base, wherein the top end of the mounting bracket is fixedly connected with the first booster pump, and the bottom end of the mounting bracket is fixed in the base.

7. The gas-fired heating water heater according to claim 6, wherein a shock-absorbing pad is disposed between the mounting bracket and the base, and a shock-absorbing pad is disposed between the mounting bracket and the first booster pump.

8. The gas-fired heating water heater according to any one of claims 1 to 7, further comprising a second water flow detector installed on the first water outlet pipe, wherein the second water flow detector is used for detecting the water flow after the first booster pump is boosted;

the controller is also used for controlling the working state of the first booster pump according to the water flow detected by the second water flow detector.

9. The gas-fired heating water heater according to any one of claims 1 to 7, further comprising a main water outlet pipe, a heating pipeline, a burner and a second heat exchanger, wherein the second heat exchanger is located above the burner, and the heating pipeline comprises a heating water outlet pipe, a heating water return pipe and a circulation pipe;

one end of the main water outlet pipe is communicated with an outlet of the second heat exchanger, the other end of the main water outlet pipe is connected with an electromagnetic three-way valve, two outlets of the electromagnetic three-way valve are respectively connected with the heating water outlet pipe and the first heat exchanger, and the first heat exchanger and the heating water return pipe are communicated with an inlet of the second heat exchanger through the circulating pipe;

a second temperature detector is arranged on the circulating pipe; the controller is respectively in communication connection with the second temperature detector and the electromagnetic three-way valve, and the controller is used for controlling the opening and closing state of the electromagnetic three-way valve according to the temperature detected by the second temperature detector.

10. The gas-fired heating water heater according to claim 9, wherein a heating booster pump and a water pressure detector are further provided on the circulation pipe, and the water pressure detector is located at one end of an inlet of the heating booster pump; the controller respectively with heating booster pump, water pressure detector communication connection, the controller still is used for according to the water pressure control that water pressure detector detected heating booster pump operating condition.

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