Water storage type gas heating water heater
By designing a water storage structure and intelligent heating system in a gas heating hot water furnace, the problem of traditional gas heating hot water furnaces requiring preheating and not being able to heat and provide heating at the same time is solved, and the rapid output of hot water and simultaneous heating and heating is achieved. Improves the convenience of the equipment and thermal efficiency.
Patent Information
- Application Number
- CN202420919938.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-29
AI Technical Summary
Traditional gas heating hot water furnaces need to be preheated and cannot supply hot water and heating at the same time, resulting in inconvenient use and waste of water resources. Especially when hot water and heating are required in winter, additional equipment is needed to resolve this conflict. .
A water-storage gas heating hot water furnace is designed, including a domestic hot water preheating circulation system and a heating heating heating circulation system. It can quickly heat and store hot water through internal circulation water pump, water temperature sensor and main controller, and use it in common The heating system realizes simultaneous heating and heating, and uses adjustable speed water pumps, water flow sensors and water temperature controllers to improve thermal efficiency, while the internal circulation filters and check valves avoid scale blockage and heat loss.
It achieves rapid output of hot water, avoids preheating waste, meets the hot water needs of large families, and provides hot water and heating simultaneously through the water storage structure, improving the convenience of the equipment and thermal efficiency.
Smart Images
Figure CN222230897U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas heating water heaters, and more specifically, to a water storage type gas heating water heater. Background Art
[0002] As the country's environmental protection requirements gradually increase, the use of heating equipment such as gas heating water heaters is becoming more and more widespread. However, due to its own structural problems, traditional gas heating water heaters have many shortcomings: 1. When using hot water for the first time over a long distance, it needs to be preheated, which is inconvenient to use and easily causes waste of water resources; 2. It cannot meet the supply of hot water and heating at the same time. In real life, especially in winter, hot water and heating are often needed at the same time. There is a certain working conflict between the hot water supply system and the heating supply system of the traditional gas heating water heater. If you want to solve this problem, you can usually only add a new boiler or water heater. The addition of these additional equipment will not only take up more indoor space, but also increase people's living expenses. Therefore, it is necessary to design a new gas heating water heater that can not only output hot water immediately but also supply hot water and heating at the same time. Utility Model Content
[0003] The utility model aims to provide a water storage type gas heating water heater, aiming to solve the problem that the existing traditional gas heating water heater needs to be preheated and cannot supply hot water and heating at the same time.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A water storage gas heating water heater, comprising a main controller, a domestic hot water preheating circulation system, a heating circulation system and a heating system, characterized in that:
[0006] The domestic hot water preheating circulation system comprises a water storage and insulation water tank, the water storage and insulation water tank is provided with a cold water inlet and a hot water outlet, the water storage and insulation water tank is connected with the heating system through an internal circulation return pipe and an internal circulation water supply pipe, the internal circulation return pipe is provided with an internal circulation water pump, and the water storage and insulation water tank is provided with a water temperature sensor; the internal circulation water pump and the water temperature sensor are electrically connected to the main controller;
[0007] The heating circulation system comprises a heating return pipe and a heating water supply pipe, one end of the heating return pipe and the heating water supply pipe are connected to the heating system, and the other end is connected to an external heat dissipation heating device, the heating return pipe is provided with a heating circulation water pump, and the heating return pipe is connected to an external tap water pipe through a main water supply pipe, and a water supply valve is provided on the main water supply pipe; the heating water supply pipe is provided with a heating system pressure sensor and a heating water thermostat; the heating circulation water pump, the heating system pressure sensor, and the heating water thermostat are electrically connected to the main controller;
[0008] The heating system includes a heat exchanger and a burner. The heat exchanger is connected to an internal circulation return pipe, an internal circulation water supply pipe, a heating return pipe, and a heating water supply pipe. An adjustable-speed fan and a smoke exhaust chamber are provided above the heat exchanger. An electronic wind pressure sensor is installed on the adjustable-speed fan. The lower end of the burner is connected to a gas pipe, and a gas proportional valve is provided on the gas pipe. The burner, the electronic wind pressure sensor, and the gas proportional valve are electrically connected to a main controller.
[0009] Furthermore, the internal circulation water pump is an adjustable speed water pump, and an internal circulation water flow sensor and a circulation return water temperature controller are also provided on the internal circulation return water pipe, and a circulation water supply temperature controller is provided on the internal circulation water supply pipe; the internal circulation water flow sensor, circulation return water temperature controller and circulation water supply temperature controller are all electrically connected to the main controller.
[0010] Furthermore, an internal circulation filter and an internal circulation one-way valve are also provided on the internal circulation return pipe, and the internal circulation filter is installed at one end of the internal circulation water pump connected to the water storage and insulation water tank.
[0011] Furthermore, the heating circulation system also includes an expansion water tank, which is connected to the main water supply pipe through an expansion water tank water supply pipe. A safety valve and a water pressure gauge are also provided on the expansion water tank water supply pipe.
[0012] Furthermore, the water storage and heat preservation water tank comprises an outer cylinder and an inner tank, and a heat preservation layer is filled between the outer cylinder and the inner tank.
[0013] Furthermore, the water storage and insulation water tank is also provided with a pressure relief port, a pressure relief valve is installed at the pressure relief port, and the pressure relief valve is connected to an external pressure relief drain pipe.
[0014] Furthermore, a sewage discharge / water return port which can be used for sewage discharge or water return is also provided below the water storage and insulation water tank.
[0015] Furthermore, the heat exchanger is a shell-and-tube heat exchanger, which is respectively provided with two joints at both ends. The two joints at one end are connected to the internal circulation return pipe and the internal circulation water supply pipe, and the two joints at the other end are connected to the heating return pipe and the heating water supply pipe; a water temperature overheating protection device is installed on the interface end of the heat exchanger connected to the heating water supply pipe.
[0016] Furthermore, the domestic hot water preheating circulation system, the heating circulation system and the heating system are integrated and assembled.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] 1. The utility model uses the internal circulation water pump in the domestic hot water preheating circulation system to transport the water in the water storage and insulation water tank to the heating system for heating, and can control the internal circulation water pump to circulate and operate according to the water temperature monitored in real time by the water temperature sensor to achieve multiple heating until the water temperature reaches the set temperature, and temporarily store the hot water in the water tank. When the user uses hot water, the hot water in the water storage and insulation water tank will be immediately transported to the hot water faucet, and no time is needed for preheating. It has the function of energy storage, is more convenient to use and is not easy to cause waste of water resources. At the same time, the water storage structure can also realize the simultaneous supply of hot water at multiple points to meet the hot water supply needs of large family users, and is more practical; secondly, the heating of the utility model The heating circulation system and the domestic hot water preheating circulation system share a heating system. When heating is needed, the water in the heating circulation pipe can be transported to the heating system for circulating heating through the heating circulation water pump on the heating return pipe, and the water pressure and water temperature in the heating circulation pipe can be monitored in real time through the heating system pressure sensor and the heating water thermostat, so that the start and stop of the heating circulation water pump and the opening degree of the gas proportional valve in the heating system can be controlled by the main controller to keep the water in the heating circulation pipe at a constant temperature and pressure to achieve stable heating. Furthermore, the utility model can store hot water in the water tank in advance by arranging a water storage and insulation water tank. As long as the hot water temperature in the water storage and insulation water tank is higher than the set water temperature, the user can enjoy hot water and heating at the same time.
[0019] 2. The internal circulation water pump in the utility model adopts an adjustable speed water pump, and an internal circulation water flow sensor and a circulation return water thermostat are arranged on the internal circulation return water pipe, and a circulation water supply thermostat is arranged on the internal circulation water supply pipe. The internal circulation water flow sensor is used to monitor the water flow in the internal circulation return water pipe, and the circulation return water thermostat and the circulation water supply thermostat are used to monitor the water temperature values in the internal circulation return water pipe and the internal circulation water supply pipe respectively. The rotation speed of the internal circulation water pump and the opening degree of the gas proportional valve can be controlled by the main controller based on the monitored data, thereby improving the thermal efficiency of the equipment during the entire operation period and keeping the water temperature of the output hot water constant when outputting hot water for a long time.
[0020] 3. The utility model is also provided with an internal circulation filter and an internal circulation one-way valve on the internal circulation return pipe. The internal circulation filter can ensure that when the equipment is used for a long time, the water in the water storage and insulation water tank can filter out impurities, scale and other sundries in the water when circulating internally through the internal circulation water pump, so as to avoid blockage of the internal circulation water system and damage to the blades of the internal circulation water pump due to being stuck by sundries; the internal circulation one-way valve can prevent the hot water in the water storage and insulation water tank from flowing to the heat exchanger when the equipment is in the insulation state, thereby blocking the formation of natural convection of cold and hot water in the water storage and insulation water tank and reducing heat loss. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the water tank 11 in the water storage and insulation chamber;
[0024] Among them, 1-domestic hot water preheating circulation system, 11-water storage and insulation room water tank, 111-cold water inlet, 112-hot water outlet, 113-outer cylinder, 114-inner tank, 115-insulation layer, 116-pressure relief port, 117-drainage / return port, 118-internal circulation return water connector, 119-internal circulation water supply connector, 12-internal circulation return water pipe, 121-internal circulation water pump, 122-internal circulation water flow sensor, 123-and circulation return water thermostat, 124-internal circulation filter, 125-internal circulation one-way valve, 13-internal circulation water supply pipe, 131-circulation water supply thermostat, 1 4-water temperature sensor, 2-heating circulation system, 21-heating return pipe, 211-heating circulation water pump, 22-heating water supply pipe, 221-heating system pressure sensor, 222-heating water thermostat, 23-main water supply pipe, 231-water supply valve, 24-expansion tank, 25-expansion tank water supply pipe, 251-safety valve, 252-water pressure gauge, 3-heating system, 31-heat exchanger, 32-burner, 33-adjustable speed fan, 34-smoke exhaust chamber, 35-electronic wind pressure sensor, 36-gas pipe, 361-gas proportional valve, 37-water temperature overheating protection device. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] Example 1
[0027] like Figure 1 and Figure 2 A water storage gas heating water heater is shown, characterized in that it includes a main controller, a domestic hot water preheating circulation system 1, a heating circulation system 2 and a heating system 3;
[0028] The domestic hot water preheating circulation system 1 comprises a water storage and insulation water tank 11, on which a cold water inlet 111 and a hot water outlet 112 are provided, the cold water outlet 111 is arranged at the lower end of the water storage and insulation water tank 11, and is used to connect an external tap water supply pipe, and the hot water outlet 112 is arranged at the upper end of the water storage and insulation water tank 11, and is used to connect an external hot water delivery pipe to a hot water tap; an inner circulation return water joint 118 and an inner circulation water supply joint 119 are arranged on the water storage and insulation water tank 11, and the two joints are connected to the heating system 3 through an inner circulation return water pipe 12 and an inner circulation water supply pipe 13 respectively, an inner circulation water pump 121 is arranged on the inner circulation return water pipe 12, and a water tank water temperature probe is also arranged on the water storage and insulation water tank 11, and a water temperature sensor 14 is installed in the water tank water temperature probe; the inner circulation water pump 121 and the water temperature sensor 14 are electrically connected to the main controller;
[0029] The heating and heat supply circulation system 2 includes a heating return water pipe 21 and a heating water supply pipe 22. One end of the heating return water pipe 21 and the heating water supply pipe 22 are connected to the heating system 3, and the other end is connected to an external heat dissipation heating device. The heating return water pipe 21 is provided with a heating circulation water pump 211, and the heating return water pipe 21 is connected to an external tap water pipe through a main water supply pipe 23. The connection point between the main water supply pipe 23 and the heating return water pipe 21 is located at one end of the heating circulation water pump 211 connected to the heating system 3, and the main water supply pipe 23 is provided with a water supply valve 231; the heating water supply pipe 22 is provided with a heating system pressure sensor 221 and a heating water thermostat 222; the heating circulation water pump 211, the heating system pressure sensor 221, and the heating water thermostat 222 are electrically connected to the main controller;
[0030] The heating system 3 includes a heat exchanger 31 and a burner 32. The heat exchanger 31 is connected to the internal circulation water return pipe 12, the internal circulation water supply pipe 13, the heating water return pipe 21, and the heating water supply pipe 22. An adjustable speed fan 33 and a smoke exhaust chamber 34 are arranged above the heat exchanger 31. When the adjustable speed fan 33 is in operation, the air flow speed in the combustion chamber can be accelerated, thereby improving the combustion efficiency and reducing smoke. An electronic wind pressure sensor 35 is installed on the adjustable speed fan 33. The electronic wind pressure sensor 35 and the adjustable speed fan 33 is used in conjunction with the electronic wind pressure sensor 35 to detect the wind pressure value, and the main controller controls the adjustable speed fan 33 to give different wind speeds under different loads, and can also judge whether to turn off the gas by reading the wind pressure value of the electronic wind pressure sensor 35 for comparison; the lower end of the burner 32 is connected to the gas pipe 36, and the gas pipe 36 is provided with a gas proportional valve 361, and the gas proportional valve 361 is used to control the supply of gas; the electronic wind pressure sensor 35 and the gas proportional valve 361 are electrically connected to the main controller.
[0031] When the device is used alone to supply domestic hot water, it can be used in two ways:
[0032] 1) Insulated water storage state, start the equipment for the first time, turn on the water, electricity and ventilation, open the tap water inlet valve on the tap water supply pipe and the hot water supply valve on the hot water delivery pipe, and inject cold water into the water storage and insulation water tank 11 through the cold water inlet 111 on the water storage and insulation water tank 11, turn on the hot water tap, when water flows out of the hot water tap, it indicates that the water storage and insulation water tank 11 is now full of cold water, and close the hot water supply valve; at this time, the water temperature sensor 14 detects that the average water temperature in the water storage and insulation water tank 11 is lower than the set temperature, and the main controller controls the internal circulation water pump 121 to start, and the water in the water storage and insulation water tank 11 is pumped out and delivered to the heating system 3 through the internal circulation return pipe 12, and the main controller controls The adjustable speed fan 33 in the heating system 3 is running, the gas proportional valve 361 is opened, and the burner 32 is ignited, so as to heat the cold water entering the heat exchanger 31. The heated water is then transported back to the water storage and insulation water tank 11 through the internal circulation water supply pipe 13. This process is repeated until the average water temperature detected by the water temperature sensor 14 reaches the set value. The main controller controls the internal circulation water pump 121 and the heating system 3 to stop running, and completes the preheating of the cold water. At this time, the tap water inlet valve is closed, and the hot water supply valve is opened. The user can use the hot water stored in the water storage and insulation water tank 11 by turning on the hot water faucet until the hot water in the water storage and insulation water tank 11 is used up.
[0033] 2) Continuous water use state. First, the water in the water storage and insulation water tank 11 has been running in the above-mentioned insulation and water storage state. At this time, the tap water inlet valve is not closed. When the user turns on the hot water faucet to use hot water, the hot water used can be replenished in time. If the water temperature sensor 14 detects that the average water temperature in the water storage and insulation water tank 11 is lower than the set value during this process, the main controller will control the internal circulation water pump 121 and the heating system 3 to start again. The water in the water storage and insulation water tank 11 will be pumped out and transported to the heating system 3 for heating. The heated water is transported back to the water storage and insulation water tank 11 for use. This process continues over and over again. At this time, hot water is released at a certain flow rate, so that constant temperature hot water can be continuously provided for a long time for users to use.
[0034] When the equipment is providing heating, it can be divided into two usage states:
[0035] 1) The first usage state: When the device is started for the first time, since the water storage and insulation water tank 11 is filled with cold water, the device needs to heat the cold water in the water storage and insulation water tank 11 to hot water of the set temperature according to the set domestic hot water temperature requirement before starting the heating and heating operation; when the heating and heating circulation system 2 is supplying heating for the first time, a certain amount of tap water needs to be injected into the heating return pipe 21 through the main water supply pipe 23. When the heating system pressure sensor 221 detects the water pressure in the heating circulation pipeline, the main controller controls the heating The circulating water pump 211 is started to realize the circulation of heating water in the heating circulation pipeline. At the same time, the main controller controls the operation of the adjustable speed fan 33 in the heating system 3, the gas proportional valve 361 is opened, and the opening degree of the gas proportional valve 361 is controlled by the heating water temperature data detected by the heating water thermostat 222. The burner 32 is ignited to heat the cold water entering the heat exchanger 31. This process continues over and over again until the heating water reaches the heating set temperature, and the main controller controls the heating system 3 to stop running.
[0036] 2) The second usage state: At this time, the heating and heat supply circulation system 2 is working in the first usage state mentioned above. At this time, the hot water supply valve is opened and the hot water faucet outputs hot water. As long as the water temperature sensor 14 detects that the water temperature in the water storage and insulation water tank 11 is higher than the set water temperature, the output of domestic hot water and heating and heat supply can operate at the same time. Only when the water temperature sensor 14 detects that the water temperature in the water storage and insulation water tank 11 is lower than the set water temperature, the domestic hot water preheating circulation system 1 will start working. At this time, it is necessary to temporarily stop the heating and heat supply operation until the water temperature sensor 14 detects that the water temperature in the water storage and insulation water tank 11 reaches the set water temperature, and the heating and heat supply work will start again.
[0037] In this embodiment, when the user uses hot water, the hot water in the water storage and insulation water tank 11 will be immediately delivered to the hot water faucet, and there is no need to spend time preheating. It has the function of energy storage, is more convenient to use and is not easy to cause waste of water resources. At the same time, the water storage structure can also realize multi-point simultaneous supply of hot water to meet the hot water supply needs of large family users, which is more practical. Secondly, the domestic hot water preheating circulation system 1 of this embodiment shares a heating system 3 with the heating circulation system 2. When heating is needed, the water in the heating circulation pipe can be pumped into the heating circulation pipe by the heating circulation water pump 211 on the heating return water pipe 21 It is transported to the heating system 3 for circulating heating, and the water pressure and water temperature in the heating circulation pipeline are monitored in real time through the heating system pressure sensor 221 and the heating water temperature controller 222, so that the start and stop of the heating circulation water pump 211 and the opening degree of the gas proportional valve 361 in the heating system 3 can be controlled by the main controller, so that the water in the heating circulation pipeline is kept at a constant temperature and pressure to achieve stable heating; furthermore, the utility model can store hot water in the water storage and insulation water tank 11 in advance by setting a water storage and insulation water tank 11. As long as the temperature of the hot water in the water storage and insulation water tank 11 is higher than the set water temperature, the user can enjoy hot water and heating at the same time.
[0038] Example 2
[0039] In this embodiment, the inner circulation water pump 121 adopts an adjustable speed water pump, and an inner circulation water flow sensor 122 and a circulation return water thermostat 123 are also provided on the inner circulation return water pipe 12, and a circulation supply water thermostat 131 is provided on the inner circulation water supply pipe 13. The inner circulation water flow sensor 122, the circulation return water thermostat 123 and the circulation supply water thermostat 131 are all electrically connected to the main controller. The inner circulation water flow sensor 122 is used to monitor the water flow in the inner circulation return water pipe 12, and the circulation return water thermostat 123 and the circulation supply water thermostat 131 are used to monitor the water temperature values in the inner circulation return water pipe 12 and the inner circulation water supply pipe 13 respectively. The rotation speed of the inner circulation water pump 121 and the opening degree of the gas proportional valve 361 can be controlled by the main controller based on the monitored data, thereby improving the thermal efficiency of the equipment during the entire operation period and keeping the water temperature of the output hot water constant when outputting hot water for a long time.
[0040] Example 3
[0041] In this embodiment, an internal circulation filter 124 and an internal circulation one-way valve 125 are also provided on the internal circulation return pipe 12. The internal circulation filter 124 is installed at one end of the internal circulation water pump 121 connected to the water storage and insulation water tank 11. The internal circulation filter 124 can ensure that when the equipment is used for a long time, the water in the water storage and insulation water tank 11 can filter out impurities, scale and other debris in the water when circulating in the internal circulation water pump 121, so as to avoid blockage of the internal circulation water system and damage to the blades of the internal circulation water pump 121 due to being stuck by debris; the internal circulation one-way valve 125 can prevent the hot water in the water storage and insulation water tank 11 from flowing to the heat exchanger 31 when the equipment is in the insulation state, thereby blocking the formation of natural convection of cold and hot water in the water storage and insulation water tank 11 and reducing heat loss.
[0042] Example 4
[0043] In this embodiment, the heating and heat supply circulation system 2 also includes an expansion water tank 24, which is connected to the main water supply pipe 23 through an expansion water tank water supply pipe 25. The expansion water tank water supply pipe 25 is also provided with a safety valve 251 and a water pressure gauge 252. When the heating and heat supply circulation system 2 is operated for the first time, water must be filled into the heating circulation pipeline first, and its static pressure comes from the pressure of tap water. When the heating and heat supply circulation system 2 is operating normally, the pressure of the heating and heat supply circulation system 2 is required to be between 0.5 and 3 bar. When the system pressure exceeds 3 bar, the safety valve 251 will automatically release the pressure and discharge the water in the heating circulation pipeline to prevent damage to the heating circulation pipeline and related devices; when the heating pressure is lower than the set pressure, the water in the expansion water tank 24 will automatically be added to the heating and heat supply circulation system 2 to maintain the normal pressure balance of the heating and heat supply circulation system 2.
[0044] Example 5
[0045] In this embodiment, the water storage and insulation water tank 11 includes an outer cylinder 113 and an inner tank 114, and an insulation layer 115 is filled between the outer cylinder 113 and the inner tank 114. More specifically, the insulation layer 115 is a polyurethane foam material, which can play a good insulation function and reduce the water temperature loss in the water storage and insulation water tank 11.
[0046] Example 6
[0047] In this embodiment, a pressure relief port 116 is further provided on the water storage and insulation water tank 11, and a pressure relief valve is installed at the pressure relief port 116. The pressure relief valve is connected to an external pressure relief drain pipe. When the water in the water storage and insulation water tank 11 is heated from cold water to hot water, the water in the water storage and insulation water tank 11 expands or the water temperature exceeds the temperature, the pressure can be automatically and safely relieved to avoid safety accidents.
[0048] Example 7
[0049] In this embodiment, a sewage / return port 117 for sewage discharge or water return is provided under the water storage and insulation water tank 11. It is mainly used to facilitate emptying the water in the water storage and insulation water tank 11 when maintaining the equipment after the equipment has been used for a certain period of time. It can also be used as a circulating water loop interface for domestic hot water.
[0050] Example 8
[0051] In this embodiment, the heat exchanger 31 is a shell-and-tube heat exchanger, and two joints are respectively provided at its two ends. The two joints at one end are connected to the internal circulation return pipe 12 and the internal circulation water supply pipe 13, and the two joints at the other end are connected to the heating return pipe 21 and the heating water supply pipe 22; a water temperature overheating protection device 37 is installed on the interface end of the heat exchanger 31 connected to the heating water supply pipe 22. When the outlet temperature of the heating water supply port is too high due to unknown reasons, the water temperature overheating protection device 37 will be triggered to automatically lock the heating system 3 and the heating circulation system 2.
[0052] Example 9
[0053] In this embodiment, the domestic hot water preheating circulation system 1, the heating circulation system 2 and the heating system 3 are integrated and assembled. More specifically, in this embodiment, the water storage and insulation water tank 11 is used as a load-bearing carrier, and the other components of the domestic hot water preheating circulation system 1, the heating circulation system 2 and the heating system 3 are integrated and installed on the outer wall of the water storage and insulation water tank 11, thereby reducing the overall volume of the equipment, facilitating indoor placement, and saving indoor space.
[0054] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A water storage gas heating water heater, comprising a main controller, a domestic hot water preheating circulation system (1), a heating circulation system (2) and a heating system (3), characterized in that: The domestic hot water preheating circulation system (1) comprises a water storage and insulation water tank (11), the water storage and insulation water tank (11) is provided with a cold water inlet (111) and a hot water outlet (112), the water storage and insulation water tank (11) is connected to the heating system (3) through an internal circulation return pipe (12) and an internal circulation water supply pipe (13), the internal circulation return pipe (12) is provided with an internal circulation water pump (121), and the water storage and insulation water tank (11) is provided with a water temperature sensor (14); the internal circulation water pump (121) and the water temperature sensor (14) are electrically connected to a main controller; The heating and heat supply circulation system (2) comprises a heating water return pipe (21) and a heating water supply pipe (22); one end of the heating water return pipe (21) and the heating water supply pipe (22) are connected to the heating system (3), and the other end is connected to an external heat dissipation heating device; the heating water return pipe (21) is provided with a heating circulation water pump (211), and the heating water return pipe (21) is connected to an external tap water pipe through a main water supply pipe (23); the main water supply pipe (23) is provided with a water supply valve (231); the heating water supply pipe (22) is provided with a heating system pressure sensor (221) and a heating water temperature controller (222); the heating circulation water pump (211), the heating system pressure sensor (221), and the heating water temperature controller (222) are electrically connected to a main controller; The heating system (3) comprises a heat exchanger (31) and a burner (32). The heat exchanger (31) is connected to an internal circulation water return pipe (12), an internal circulation water supply pipe (13), a heating water return pipe (21), and a heating water supply pipe (22). An adjustable speed fan (33) and a smoke exhaust chamber (34) are arranged above the heat exchanger (31). An electronic wind pressure sensor (35) is installed on the adjustable speed fan (33). The electronic wind pressure sensor (35) is used in conjunction with the adjustable speed fan (33). The lower end of the burner (32) is connected to a gas supply pipe (36). A gas proportional valve (361) is arranged on the gas supply pipe (36). The gas proportional valve (361) is used to control the supply amount of gas. The burner (32), the electronic wind pressure sensor (35), and the gas proportional valve (361) are electrically connected to a main controller.
2. The water storage type gas heating water heater according to claim 1, characterized in that: The inner circulation water pump (121) is a speed-adjustable water pump. An inner circulation water flow sensor (122) and a circulation return water temperature controller (123) are also provided on the inner circulation water return pipe (12), and a circulation water supply temperature controller (131) is provided on the inner circulation water supply pipe (13); the inner circulation water flow sensor (122), the circulation return water temperature controller (123) and the circulation water supply temperature controller (131) are all electrically connected to a main controller.
3. The water storage type gas heating water heater according to claim 2, characterized in that: The inner circulation return pipe (12) is also provided with an inner circulation filter (124) and an inner circulation one-way valve (125). The inner circulation filter (124) is installed at one end of the inner circulation water pump (121) connected to the water storage and heat preservation water tank (11).
4. The water storage type gas heating water heater according to claim 1, characterized in that: The heating circulation system (2) further comprises an expansion water tank (24), wherein the expansion water tank (24) is connected to the main water supply pipe (23) via an expansion water tank water supply pipe (25), and the expansion water tank water supply pipe (25) is also provided with a safety valve (251) and a water pressure gauge (252).
5. The water storage type gas heating water heater according to claim 1, characterized in that: The water storage and heat preservation water tank (11) comprises an outer cylinder (113) and an inner tank (114), and a heat preservation layer (115) is filled between the outer cylinder (113) and the inner tank (114).
6. The water storage type gas heating water heater according to claim 1, characterized in that: The water storage and heat preservation water tank (11) is also provided with a pressure relief port (116), and a pressure relief valve is installed at the pressure relief port (116), and the pressure relief valve is connected to an external pressure relief drain pipe.
7. The water storage type gas heating water heater according to claim 1, characterized in that: A sewage discharge / water return port (117) for discharging sewage or returning water is also provided below the water storage and heat preservation water tank (11).
8. The water storage type gas heating water heater according to claim 1, characterized in that: The heat exchanger (31) is a shell-and-tube heat exchanger, and is provided with two joints at both ends, wherein the two joints at one end are connected to the internal circulation return pipe (12) and the internal circulation water supply pipe (13), and the two joints at the other end are connected to the heating return pipe (21) and the heating water supply pipe (22); a water temperature overheating protection device (37) is installed on the interface end of the heat exchanger (31) connected to the heating water supply pipe (22).
9. The water storage type gas heating water heater according to claim 1, characterized in that: The domestic hot water preheating circulation system (1), the heating circulation system (2) and the heating system (3) are integrated and assembled.