Dense-thin condensation type water heater

Abstract

The utility model discloses a dense-thin condensation type water heater, which belongs to the field of water heaters and comprises a gas proportional valve arranged at the bottom of a surface shell, the upper end of the gas proportional valve is connected with a gas distribution rod, the bottom of the front end of the surface shell is respectively provided with an electric cabinet and a water pump, and the left side of the water pump is connected with a three-way valve. The other outlet of the three-way valve is connected with the water proportional valve through a pipeline and a tee joint, a water outlet of the water pump is connected with the water proportional valve through a pipeline and a tee joint, so that two water inlet pipelines are formed to be connected with the water proportional valve, and a one-way valve is installed on the pipeline without the water pump. The water heater not only can achieve the effects of flow increasing and pressure increasing and guarantee the water supply amount of the heat exchanger, but also can achieve efficient heat exchange and guarantee the water supply flow through mutual cooperation of the structures, and therefore the use comfort of the water heater can be improved.

Description

Technical Field

[0001] The utility model relates to the field of large-capacity concentrated-diluted condensing water heaters, in particular to a concentrated-diluted condensing water heater. Background Art

[0002] A water heater is a device used to heat cold water. When in use, the water heater needs to be supplied with water by a water pump. However, supplying water by a single pump may result in insufficient water supply, affecting the convenience of use. Based on this, it is necessary to provide a water heater with a dual-channel pressurization and flow-increasing structure to improve the convenience of use. In addition, the heat exchange efficiency of the existing heat exchanger is relatively simple, so the heat exchange effect is not significant enough, and at the same time affects the flow rate of the heat exchanger. Based on this, it is necessary to provide a heat exchanger that can improve the heat exchange efficiency and ensure the flow rate. Utility Model Content

[0003] The embodiment of the utility model provides a concentrated-dilute condensing water heater, which aims to solve the problem that the existing heat exchanger is not convenient for increasing pressure and flow to ensure water supply, and the heat exchange efficiency needs to be improved.

[0004] To achieve the above-mentioned object, the utility model provides a concentrated-dilute condensing water heater, comprising: a surface shell, the rear end of which is connected to a bottom plate;

[0005] A gas proportional valve is installed at the lower end of the interior of the face shell, the upper end of the gas proportional valve is connected to a gas distribution rod, and the lower end of the gas distribution rod is provided with a water proportional valve. An electric control box and a water pump are respectively installed at the bottom of the front end of the face shell. A three-way valve is connected to the left side of the water pump, and a one-way valve is installed on the other side of the three-way valve. A three-way valve is connected to the left side of the water pump, and the other outlet of the three-way valve is connected to the water proportional valve through a pipeline and a tee. The water outlet of the water pump is connected to the water proportional valve through a pipeline and a tee to form two water inlet pipelines connected to the water proportional valve, and a one-way valve is installed on the pipeline without a water pump.

[0006] A primary heat exchanger is installed at the upper end of the interior of the face shell, and a secondary heat exchanger is connected to the lower end of the primary heat exchanger. A rich-lean burner is installed in the middle of the front end of the face shell, and the rich-lean burner is connected to the gas proportional valve through a gas distribution rod. A constant temperature chamber is installed on one side of the rich-lean burner, and a circulation pipe is installed on the opposite side of the constant temperature chamber. A fan is installed at the bottom of the face shell;

[0007] A gas inlet is installed at the bottom of the surface shell, a first water inlet and a water seal inspection cover are installed on the left side of the gas inlet, a water outlet is installed at the lower end of the water seal inspection cover, and a condensate outlet and a second water inlet are installed on the right side of the water outlet.

[0008] As a preferred solution of the present invention, water outlet pipes are installed at both upper and lower ends of the constant temperature chamber, the water outlet pipes are connected to the water outlet, and a ventilation pipe is installed at the upper end of the primary heat exchanger.

[0009] As a preferred solution of the present invention, a condensate drain pipe is connected to one side of the primary heat exchanger, and a water seal is installed at the lower end of the surface shell. A water level detection device is provided in the water seal, which can effectively prevent the backflow of condensate and serve as an early warning. An antifreeze heating device is provided in the water seal to prevent the condensate in the water seal from freezing and being unable to be discharged to the outside.

[0010] As a preferred solution of the present invention, the second water inlet is connected to the water inlet pipe.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] When the heat exchanger supplies water, the water pump is first started to cooperate with the water inlet pipe to supply water. After the cold water enters, it is divided into two paths through the three-way valve, one of which enters the water proportional valve and the other enters the water pump. When the water pump stops working, the existence of the water inlet pipe cooperates with the water proportional valve and the three-way valve to achieve a flow increase effect. When the water pump is working, the above structures cooperate with each other to achieve a pressure increase operation, thereby ensuring the water supply. Compared with the water heaters in the prior art, the present invention can achieve the purpose of double-flow flow increase and pressure increase through the cooperation of the above structures, thereby improving the convenience of using the water heater.

[0013] When the water heater is exchanging heat, cold water enters the secondary heat exchanger through the water inlet pipe, and is connected in parallel with the water inlet and multiple small straight heat exchange pipes to form parallel water inlet pipes and parallel water inlet pipes, thereby improving the heat exchange efficiency and ensuring the water supply flow. At the same time, the gas proportional valve cooperates with the rich and thin burner to realize heat exchange operation, and the heated water enters the constant temperature chamber through the water inlet pipe to realize further heat exchange operation. Compared with the water heaters in the prior art, the utility model can improve the heat exchange efficiency while avoiding affecting the water supply through the mutual cooperation of the above-mentioned structures, thereby enhancing the heat exchange efficiency of the heat exchanger and improving the comfort of use of the water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a disassembled diagram of the overall structure of the utility model;

[0016] Figure 3 This is an internal front view of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the heat exchanger of the utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 6 It is a schematic diagram of the bottom structure of the utility model.

[0020] In the figure: 101, surface shell; 102, bottom plate; 201, gas proportional valve; 202, water proportional valve; 203, electric control box; 204, water pump; 205, three-way valve; 206, gas distribution rod; 301, primary heat exchanger; 302, secondary heat exchanger; 303, thick-lean burner; 305, circulation pipe; 306, fan; 307, constant temperature chamber; 311, water inlet pipe; 312, ventilation pipe; 321, condensate drain pipe; 322, water seal; 401, gas inlet; 402, first water inlet; 403, water seal inspection cover; 404, water outlet; 405, condensate outlet; 406, second water inlet; 511, water outlet pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-6 The utility model provides a concentrated-dilute condensing water heater, comprising: a surface shell 101, the rear end of which is connected to a bottom plate 102;

[0023] A gas proportional valve 201 is installed at the lower end of the interior of the face shell 101, and the upper end of the gas proportional valve 201 is connected to a gas distribution rod 206, and the lower end of the gas distribution rod 206 is provided with a water proportional valve 202. The front end bottom of the face shell 101 is respectively installed with an electric control box 203 and a water pump 204. The left side of the water pump 204 is connected to a three-way valve 205, and the other side of the three-way valve 205 is installed with a one-way valve. The left side of the water pump is connected to a three-way valve, and the other outlet of the three-way valve is connected to the water proportional valve through a pipeline and a tee. The water outlet of the water pump is connected to the water proportional valve through a pipeline and a tee, thereby forming two water inlet pipelines connected to the water proportional valve, and a one-way valve is installed on the pipeline without a water pump.

[0024] A primary heat exchanger 301 is installed at the upper end of the interior of the face shell 101, and a secondary heat exchanger 302 is connected to the lower end of the primary heat exchanger 301. A rich-lean burner 303 is installed in the middle of the front end of the face shell 101. The rich-lean burner 303 is connected to the gas proportional valve 201 through a gas distribution rod 206. A constant temperature chamber 307 is installed on one side of the rich-lean burner 303, and a circulation pipe 305 is installed on the opposite side of the constant temperature chamber 307. A fan 306 is installed at the bottom of the face shell 101;

[0025] A gas inlet 401 is installed at the bottom of the surface shell 101, and a first water inlet 402 and a water seal inspection cover 403 are installed on the left side of the gas inlet 401. A water outlet 404 is installed at the lower end of the water seal inspection cover 403, and a condensation water outlet 405 and a second water inlet 406 are installed on the right side of the water outlet 404.

[0026] In a specific embodiment, when in use, the water pump 204 is first started to cooperate with the water inlet pipe 311 to perform water supply operation. After the cold water enters the water inlet pipe 311, it is divided into two paths under the action of the three-way valve 205, one of which enters the water proportional valve 202, and the other enters the water pump 204. When the water pump 204 stops working, the existence of the water inlet pipe 311 cooperates with the water proportional valve 202 and the three-way valve 205 to achieve a flow increase effect. When the water pump 204 is working, the boosting operation can be achieved through the cooperation of the above structures, thereby ensuring the water supply. At the same time, the gas proportional valve 201 cooperates with the electrical control box 203 and the thick and thin burner 303 to facilitate the delivery of gas into the water heater. At this time, cold water enters the secondary heat exchanger 302 through the water inlet pipe 311, and then is connected in parallel with the water inlet and multiple small heat exchange straight pipes, thereby forming a parallel water inlet pipeline and a parallel water inlet pipeline, so as to improve the heat exchange efficiency and ensure the water supply flow. The heated water enters the constant temperature chamber 307 through the condensate drain pipe 321 to achieve further heat exchange operation, thereby improving the convenience of using the water heater.

[0027] See also Figure 3-Figure 6 Water outlet pipes 511 are installed at both ends of the constant temperature chamber 307 , and the water outlet pipes 511 are connected to the water outlet 404 . A ventilation pipe 312 is installed at the upper end of the primary heat exchanger 301 .

[0028] In a specific embodiment, the water inlet pipe 311 facilitates water supply operation, and the ventilation pipe 312 facilitates ventilation operation of the heat exchanger.

[0029] See also Figure 3-Figure 6 A condensate drain pipe 321 is connected to one side of the primary heat exchanger 301, and a water seal 322 is installed at the lower end of the surface shell 101. A water level detection device is provided in the water seal 322, which can effectively prevent the condensate from flowing back and serve as an early warning. An antifreeze heating device is provided in the water seal 322 to prevent the condensate in the water seal from freezing and being unable to be discharged to the outside.

[0030] In a specific embodiment, the condensate drain pipe 321 facilitates draining water into the constant temperature chamber 307 for further heat exchange operations, and the presence of the water seal 322 can enhance the sealing performance.

[0031] Please refer to the figure Figure 3-Figure 6 , the second water inlet 406 is connected to the water inlet pipe 311.

[0032] In a specific embodiment, the water inlet pipe 311 and the second water inlet 406 are connected to facilitate improving the heat exchange smoothness of the water heater.

[0033] Working principle: When in use, first start the water pump 204 and cooperate with the water inlet pipe 311 to supply water. When the cold water enters the three-way valve 205, it is divided into two paths, one of which enters the water proportional valve 202, and the other enters the water pump 204. When the water pump 204 stops working, the existence of the water inlet pipe 311 cooperates with the water proportional valve 202 and the three-way valve 205 to achieve a flow increase effect. When the water pump 204 is working, it can achieve a boosting operation while ensuring the water supply. The gas proportional valve 201 cooperates with the electric control box 203 and the rich-lean burner 303 facilitate the transportation of gas into the water heater. At the same time, cold water enters the secondary heat exchanger 302 through the water inlet pipe 311, thereby forming a parallel water inlet pipeline and a parallel water inlet pipeline through the water inlet and multiple small heat exchange straight pipes in parallel to improve the heat exchange efficiency and ensure the water supply flow. The heated water enters the constant temperature chamber 307 through the condensate drain pipe 321 to achieve further heat exchange operation, thereby improving the convenience of using the water heater.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concentrated-dilute condensing water heater, characterized in that: include: A surface shell (101), wherein the rear end of the surface shell (101) is connected to a bottom plate (102); A gas proportional valve (201) is installed at the lower end of the interior of the housing (101), the upper end of the gas proportional valve (201) is connected to a gas distribution rod (206), and the lower end of the gas distribution rod (206) is provided with a water proportional valve (202). An electric control box (203) and a water pump (204) are respectively installed at the front end bottom of the housing (101), the left side of the water pump (204) is connected to a three-way valve (205), the other side of the three-way valve (205) is installed with a one-way valve, the other outlet of the three-way valve (205) is connected to the water proportional valve (202) through a pipeline and a three-way valve, and the water outlet of the water pump (204) is connected to the water proportional valve (202) through a pipeline and a three-way valve, thereby forming two water inlet pipelines connected to the water proportional valve (202), wherein a one-way valve is installed on the pipeline without the water pump. A primary heat exchanger (301) is installed at the upper end of the interior of the housing (101), and a secondary heat exchanger (302) is connected to the lower end of the primary heat exchanger (301). A thick-lean burner (303) is installed at the middle of the front end of the housing (101), and the thick-lean burner (303) is connected to the gas proportional valve (201) via a gas distribution rod (206). A constant temperature chamber (307) is installed on one side of the thick-lean burner (303), and a circulation pipe (305) is installed on the opposite side of the constant temperature chamber (307). A fan (306) is installed at the bottom of the housing (101); A gas inlet (401) is installed at the bottom of the surface shell (101), a first water inlet (402) and a water seal inspection cover (403) are installed on the left side of the gas inlet (401), a water outlet (404) is installed at the lower end of the water seal inspection cover (403), and a condensate outlet (405) and a second water inlet (406) are installed on the right side of the water outlet (404).

2. The concentrated-dilute condensing water heater according to claim 1, characterized in that: Water outlet pipes (511) are installed at both upper and lower ends of the constant temperature chamber (307), and the water outlet pipes (511) are connected to the water outlet (404). A ventilation pipe (312) is installed at the upper end of the primary heat exchanger (301).

3. The concentrated-dilute condensing water heater according to claim 2, characterized in that: A condensate drain pipe (321) is connected to one side of the primary heat exchanger (301), and a water seal (322) is installed at the lower end of the surface shell (101).

4. The concentrated-dilute condensing water heater according to claim 3, characterized in that: The second water inlet (406) is connected to the water inlet pipe (311).

5. The concentrated-dilute condensing water heater according to claim 3, characterized in that: A water level detection device is provided in the water seal (322).

6. The concentrated-dilute condensing water heater according to claim 3, characterized in that: An antifreeze heating device is provided in the water seal (322).

Images