Waste heat utilization water heater
By providing an annular flue chamber around the hot water chamber of the hot water furnace and communicating with the first flue pipe, and connecting the second flue pipe with the bottom of the waste heat recovery tank, the problem of low heat utilization in the traditional hot water furnace is solved, and efficient waste heat recovery and utilization is achieved.
Patent Information
- Application Number
- CN202421666381.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-15
AI Technical Summary
Traditional hot water furnaces have low heat utilization during heating, resulting in a large amount of heat loss and more energy is consumed when heating in cold seasons.
A waste heat hot water furnace is designed. By providing an annular flue cavity on the outer wall of the hot water cavity of the furnace body, it is connected with the first flue pipe, and reheating the hot water using waste heat, and at the same time connecting the second flue pipe with the bottom of the waste heat recovery tank, the structure of the waste heat recovery tank is optimized to further recover the waste heat of the flue gas.
It improves the utilization rate of heat and reduces heat loss, especially in the cold season, which can utilize waste heat more efficiently and reduce energy consumption.
Smart Images
Figure CN222824558U_ABST
Abstract
Description
Technical Field
[0001] The utility model mainly relates to the technical field of water heaters, in particular to a waste heat utilization water heater. Background Art
[0002] Hot water boiler is a common heat treatment device. Traditional hot water boilers usually install a burner on one side of the furnace body and heat it through gas. At present, hot water boilers have been widely used in various industries.
[0003] However, when the existing traditional water heater is in use, the high-temperature gas in the furnace body heats the water in the hot water chamber and is often directly discharged into the air, which makes its heat utilization rate low, causing a large amount of heat loss, which is not conducive to energy saving; in addition, if the water in the water heater is heated in the cold winter, the side wall of the hot water chamber is in direct contact with the air, which will cause the heat to dissipate faster and consume more energy for heating. Therefore, it is necessary to propose an improvement measure to solve the above technical problems.
[0004] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Utility Model Content
[0005] 1. Technical problems to be solved by the utility model:
[0006] The utility model provides a waste heat utilization hot water boiler, which is used to solve the technical problems existing in the above-mentioned background technology.
[0007] 2. Technical solution:
[0008] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a waste heat utilization hot water boiler, including a furnace body, a first flue pipe is correspondingly provided on one side of the furnace body, an annular hot water chamber is correspondingly provided around the inner furnace cavity of the furnace body, an annular flue chamber is correspondingly provided around the hot water chamber, the top of one side of the annular flue chamber is correspondingly connected with the first flue pipe, and the bottom of the other side of the annular flue chamber is correspondingly connected with the bottom of a waste heat recovery tank through a second flue pipe; a water storage chamber is correspondingly provided in the middle part of the waste heat recovery tank, a smoke chamber is correspondingly provided at the top and bottom of the waste heat recovery tank, a plurality of smoke pipes are correspondingly provided at intervals in the water storage chamber, two ends of the smoke pipes are respectively connected with the top and bottom smoke chambers, an exhaust port is correspondingly provided at the top of the smoke chamber at the top, a water injection pipe is correspondingly provided on the upper part of one side of the water storage chamber of the waste heat recovery tank, and a water outlet tap is correspondingly provided on the lower part of one side of the water storage chamber of the waste heat recovery tank.
[0009] Furthermore, the second flue pipe is correspondingly connected to the smoke cavity at the bottom of the waste heat recovery tank, and supporting legs are correspondingly provided around the bottom of the waste heat recovery tank.
[0010] Furthermore, end covers are correspondingly installed at both ends of the furnace body, and a burner is correspondingly installed on one of the end covers, and the burner is used to spray high-temperature combustion gas into the inner furnace cavity; a first flue pipe is correspondingly installed on the upper part of the other end cover, and a plurality of annularly evenly distributed chimneys are correspondingly arranged in the hot water cavity, one end of the chimney is connected to a side of the inner furnace cavity close to the burner, and the other end of the chimney is correspondingly connected to the first flue pipe.
[0011] Furthermore, a cold water inlet and a hot water outlet are respectively provided on both sides of the top of the hot water chamber of the furnace body, an expansion valve is also installed on the top of the hot water chamber, and a support frame is provided on the bottom of the furnace body.
[0012] Furthermore, the outer side walls of the annular flue cavity are correspondingly wrapped with thermal insulation cotton.
[0013] 3. Beneficial effects:
[0014] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:
[0015] The utility model has a reasonable design. By correspondingly providing an annular flue cavity inside the outer wall around the hot water cavity of the furnace body, and correspondingly connecting one side of the annular flue cavity with the first flue pipe, the waste heat of the gas in the first flue pipe can be used to further heat the hot water in the hot water cavity, and achieve a heat preservation effect, avoid excessive heat dissipation, and promote waste heat recovery. In addition, the utility model also connects the second flue pipe on the other side of the annular flue cavity with the bottom of the waste heat recovery tank, and optimizes the specific structure of the waste heat recovery tank, so that the waste heat of the discharged flue gas can be further recovered and utilized, so that the high-temperature flue gas can heat the water in the waste heat recovery tank when passing through the waste heat recovery tank, especially in the cold winter, it is convenient for the staff to open the water faucet to discharge the water in the waste heat recovery tank for washing hands and other operations. The overall heat utilization rate is high, a large amount of heat loss is avoided, and the maximum utilization of energy is better realized. The overall design is simple and ingenious, easy to use, and highly practical.
[0016] It should be noted that the structures not introduced in the present invention are not related to the design points and improvement directions of the present invention, and are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the waste heat utilization hot water boiler of the utility model;
[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the furnace body of the waste heat utilization hot water boiler of the utility model;
[0019] Figure 3 It is a schematic diagram of the internal cross-sectional structure of the waste heat recovery tank of the utility model.
[0020] Reference numerals:
[0021] 1. Furnace body; 101. Inner furnace cavity; 102. Hot water cavity; 103. Annular flue cavity; 104. End cover; 105. Chimney; 106. Cold water inlet; 107. Hot water outlet; 108. Expansion valve; 109. Support frame; 110. First flue pipe; 111. Second flue pipe; 2. Burner; 3. Waste heat recovery tank; 301. Water storage cavity; 302. Smoke cavity; 303. Smoke pipe; 304. Exhaust port; 305. Water injection pipe; 306. Water outlet faucet; 307. Support leg. DETAILED DESCRIPTION
[0022] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example
[0026] See attached Figure 1-3 A waste heat utilization hot water boiler of this embodiment includes a furnace body 1, and a first flue pipe 110 is correspondingly provided on one side of the furnace body 1. An annular hot water chamber 102 is correspondingly provided around the inner furnace chamber 101 of the furnace body 1, and end covers 104 are correspondingly installed at both ends of the furnace body 1, and a burner 2 is correspondingly installed on one of the end covers 104, and the burner 2 is used to spray high-temperature combustion gas into the inner furnace chamber 101; the first flue pipe 110 is correspondingly installed on the upper part of the other end cover 104, and a plurality of annular evenly distributed chimneys 105 are correspondingly provided in the hot water chamber 102, and one end of the chimney 105 is connected to a side of the inner furnace chamber 101 close to the burner 2, and the other end of the chimney 105 is correspondingly connected to the first flue pipe 11. The hot water chamber 102 of the furnace body 1 has a cold water inlet 106 and a hot water outlet 107 on both sides of the top, and an expansion valve 108 is also installed on the top of the hot water chamber 102. The furnace body 1 can also be provided with a lifting lug, and the furnace body 1 has a support frame 109 at the bottom. When in use, the burner 2 sprays high-temperature combustion gas to the bottom of the inner furnace chamber 101, and then flows back to the side of the inner furnace chamber 101 close to the burner 2, so that the high-temperature gas passes through the chimney 105 to heat the water in the hot water chamber 102, and then the high-temperature gas flows out from the first flue pipe 110. It is worth noting that the above-mentioned furnace body 1 and its internal structure and working principle are basically the same as the structural design and working principle of the hot water boiler in the prior art, so it will not be elaborated here.
[0027] An annular flue cavity 103 is correspondingly provided inside the outer wall around the hot water cavity 102, and the top of one side of the annular flue cavity 103 is correspondingly connected to the first flue pipe 110, and the bottom of the other side of the annular flue cavity 103 is correspondingly connected to the bottom of the waste heat recovery tank 3 through the second flue pipe 111. In this embodiment, an annular flue cavity 103 is correspondingly provided inside the outer wall around the hot water cavity 102, and the annular flue cavity 103 is correspondingly connected to the first flue pipe 110, so that the waste heat of the gas in the first flue pipe 110 can be used to further heat the hot water in the hot water cavity 102, and the heat preservation effect is achieved, so as to avoid excessive heat dissipation and promote waste heat recovery.
[0028] The bottom of the waste heat recovery tank 3 is also provided with supporting legs 307, the middle part of the waste heat recovery tank 3 is provided with a water storage chamber 301, the top and bottom of the waste heat recovery tank 3 are provided with smoke chambers 302, the water storage chamber 301 is provided with multiple smoke pipes 303 at intervals, and the two ends of the smoke pipes 303 are respectively connected with the smoke chambers 302 at the top and bottom. The second flue pipe 111 is connected with the smoke chamber 302 at the bottom of the waste heat recovery tank 3, and the top of the smoke chamber 302 at the top is provided with an exhaust port 304, the upper part of one side of the water storage chamber 301 of the waste heat recovery tank 3 is provided with an L-shaped water injection pipe 305, and the lower part of one side of the water storage chamber 301 of the waste heat recovery tank 3 is provided with a water outlet tap 306. This embodiment connects the second flue pipe 111 to the bottom of the waste heat recovery tank 3 accordingly and optimizes the specific structure of the waste heat recovery tank 3, so that the waste heat of the exhausted flue gas can be further recovered and utilized, so that the high-temperature flue gas can heat the water in the waste heat recovery tank 3 when passing through the waste heat recovery tank 3. Especially in the cold winter, it is convenient for the staff to open the water tap 306 to discharge the water in the waste heat recovery tank 3 for washing hands and other operations, thereby better realizing the maximum utilization of energy.
[0029] The outer side walls of the annular flue cavity 103 are also wrapped with thermal insulation cotton to further achieve the thermal insulation effect and avoid excessive heat dissipation.
[0030] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.
Claims
1. A waste heat utilization hot water boiler, comprising a boiler body (1), one side of the boiler body (1) being provided with a first flue pipe (110), characterized in that: An annular hot water cavity (102) is correspondingly arranged around the inner furnace cavity (101) of the furnace body (1), and an annular flue cavity (103) is correspondingly arranged around the hot water cavity (102). The top of one side of the annular flue cavity (103) is correspondingly connected to the first flue pipe (110), and the bottom of the other side of the annular flue cavity (103) is correspondingly connected to the bottom of the waste heat recovery tank (3) through the second flue pipe (111); a water storage cavity (301) is correspondingly arranged in the middle of the waste heat recovery tank (3), and the top and bottom of the waste heat recovery tank (3) are correspondingly connected. A smoke cavity (302) is correspondingly provided at the bottom, a plurality of smoke pipes (303) are correspondingly arranged in intervals inside the water storage cavity (301), two ends of the smoke pipe (303) are respectively connected to the smoke cavities (302) at the top and bottom, an exhaust port (304) is correspondingly provided at the top of the smoke cavity (302) at the top, a water injection pipe (305) is correspondingly provided at the upper part of one side of the water storage cavity (301) of the waste heat recovery tank (3), and a water outlet tap (306) is correspondingly provided at the lower part of one side of the water storage cavity (301) of the waste heat recovery tank (3).
2. A waste heat utilization water heater according to claim 1, characterized in that: The second flue pipe (111) is correspondingly connected to the smoke cavity (302) at the bottom of the waste heat recovery tank (3), and supporting legs (307) are correspondingly provided around the bottom of the waste heat recovery tank (3).
3. The waste heat utilization water heater according to claim 1, characterized in that: End covers (104) are correspondingly installed at both ends of the furnace body (1), wherein a burner (2) is correspondingly installed on one of the end covers (104), and the burner (2) is used to spray high-temperature combustion gas into the inner furnace cavity (101); a first flue pipe (110) is correspondingly installed on the upper part of the other end cover (104), and a plurality of ring-shaped evenly distributed flues (105) are correspondingly arranged in the hot water cavity (102), one end of the flue pipe (105) is connected to a side of the inner furnace cavity (101) close to the burner (2), and the other end of the flue pipe (105) is correspondingly connected to the first flue pipe (110).
4. The waste heat utilization water heater according to claim 3, characterized in that: A cold water inlet (106) and a hot water outlet (107) are respectively provided on both sides of the top of the hot water chamber (102) of the furnace body (1), an expansion valve (108) is also correspondingly installed on the top of the hot water chamber (102), and a support frame (109) is correspondingly provided on the bottom of the furnace body (1).
5. The waste heat utilization water heater according to claim 1, characterized in that: The outer side walls of the annular flue cavity (103) are also wrapped with thermal insulation cotton.