Heat supply project waste heat recycling device

Abstract

The utility model belongs to the technical field of heat supply engineering, and particularly relates to a heat supply engineering waste heat recycling device which comprises a recycling tank, electromagnetic valves, a rotary connector and a motor, a water injection pipe is fixedly communicated with the upper left portion of the recycling tank, a water drainage pipe is fixedly communicated with the lower right portion of the recycling tank, and the electromagnetic valves are installed on the water drainage pipe and the water injection pipe. A first recycling assembly is arranged in the center of the inner side of the recycling tank, a second recycling assembly is arranged on the outer side of the first recycling assembly, a support is fixed to the outer wall of the left side of the recycling tank, a connecting and guiding pipe is fixedly installed at the top end of the support, a motor is fixedly installed on the outer wall of the left side of the recycling tank, and the output end of the motor is fixedly connected with a second gear. According to the utility model, the heat can be fully absorbed, the heat recovery utilization rate is higher, and the water in the recovery tank can be stirred, so that the water can be uniformly and quickly heated.

Description

Technical Field

[0001] This utility model belongs to the field of heating engineering technology, and in particular relates to a device for recovering and reusing waste heat in heating engineering. Background Technology

[0002] Heating projects refer to the process of delivering heat energy from heating stations to buildings through a central heating system to provide users with warm and comfortable heating services. However, during the heating process, hot air containing high heat is directly discharged, resulting in energy waste. In order to achieve energy recovery, waste heat recovery and reuse devices are required.

[0003] Chinese utility model patent with announcement number CN215337852U provides a waste heat recovery and reuse device for heating projects. Through structural improvements, it has the function of recovering waste heat from heating pipelines, and the waste heat recovery effect is significant, greatly improving its practical value. This effectively solves the problems and shortcomings of existing devices.

[0004] A search revealed that the waste heat recovery and reuse devices proposed in the aforementioned comparative documents still have some defects and shortcomings in practical applications: firstly, the waste heat recovery structure is simple, resulting in insufficient recovery; secondly, it is not convenient to stir the water, hindering the uniform and rapid heating of the water. Therefore, there is an urgent need to improve the existing waste heat recovery and reuse devices for heating projects and to provide a new waste heat recovery and reuse device for heating projects. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a reasonably designed, simple structure, more efficient waste heat recovery, and water-friendly waste heat recovery and reuse device for heating projects, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waste heat recovery and reuse device for heating projects includes a recovery tank, a solenoid valve, a rotary joint, and a motor. A water injection pipe is fixedly connected to the upper left side of the recovery tank, and a drain pipe is fixedly connected to the lower right side of the recovery tank. Solenoid valves are installed on both the drain pipe and the water injection pipe. A first recovery component is provided at the center of the inner side of the recovery tank, and a second recovery component is provided outside the first recovery component. A bracket is fixedly installed on the outer left side of the recovery tank, and a connecting pipe is fixedly installed at the top of the bracket. A motor is fixedly installed on the outer left side of the recovery tank, and a second gear is fixedly connected to the output end of the motor.

[0008] In a preferred embodiment, the first recycling assembly includes a hollow tube, a hollow spiral, a first gear, and a rotary joint. Both hollow tubes are L-shaped, and the horizontal sections of the two hollow tubes are respectively sealed bearings installed at the center of the left and right ends of the recycling tank. A hollow spiral is fixed between the two hollow tubes. The first gear is fixedly sleeved on the outer side of the left hollow tube. A rotary joint is installed at the opposite ends of the two hollow tubes.

[0009] In a preferred embodiment, the two hollow tubes are connected to the interior of the hollow spiral, the first gear and the second gear mesh with each other, and the hollow tube on the left is connected to the connecting pipe through a rotary joint.

[0010] In a preferred embodiment, the second recycling component includes a discharge pipe, a suction pipe, a fixed pipe, a transition pipe, and a connecting pipe. The discharge pipe, the suction pipe, and several fixed pipes are arranged in a ring around a hollow spiral. The discharge pipe, the suction pipe, and several fixed pipes are fixedly connected to each other in a staggered manner by a transition pipe. The right end of the suction pipe is fixedly connected to a connecting pipe.

[0011] In a preferred embodiment, the discharge pipe, suction pipe, and fixed pipe are all fixedly connected to the recovery tank, and the other end of the connecting pipe is connected to the hollow pipe on the right side via a rotary joint.

[0012] In a preferred embodiment, the hollow spiral, discharge pipe, suction pipe, fixing pipe, and transition pipe are all made of ultra-thin copper.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In the solution of this utility model:

[0015] Hot gas is delivered to the hollow spiral through the inlet pipe, the left rotary joint, and the hollow tube. The hollow spiral not only extends the flow path of the hot gas but also increases the contact area with the water, which is conducive to the efficient absorption of heat by the water. After passing through the hollow spiral, the hot gas can enter the suction pipe through the right rotary joint and the connecting pipe. Through multiple staggered transition pipes, as well as multiple fixed pipes and discharge pipes, the hot gas can be controlled to flow in an S-shaped curve around the transverse central axis of the recovery tank. This helps the water far away from the hollow spiral area to absorb heat, which is more convenient for the full absorption of heat and the higher heat recovery and utilization rate.

[0016] During the waste heat recovery process, the motor can be started to control the rotation of the second gear, and the first gear meshing with the second gear can control the two hollow tubes and the hollow spiral to rotate at a uniform speed. The setting of the two rotary joints can ensure the stable flow of hot air, while the rotating hollow spiral can stir the water in the recovery tank, which facilitates the uniform and rapid heating of the water. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows:

[0018] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the recycling tank of this utility model;

[0020] Figure 3 This is a schematic diagram of the left-side structure of the first and second recycling components of this utility model;

[0021] Figure 4 This is a schematic diagram of the overall front view of the first recycling component of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall left-side structure of the second recycling component of this utility model.

[0023] In the picture:

[0024] 1. Recycling tank; 2. Water injection pipe; 3. Drain pipe; 4. Solenoid valve; 5. First recycling component; 51. Hollow pipe; 52. Hollow spiral; 53. First gear; 54. Rotary joint; 6. Second recycling component; 61. Discharge pipe; 62. Suction pipe; 63. Fixing pipe; 64. Transition pipe; 65. Connecting pipe; 7. Support; 8. Lead-in pipe; 9. Motor; 10. Second gear. Detailed Implementation

[0025] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:

[0026] like Figure 1-5 As shown, the waste heat recovery and reuse device for heating engineering of this utility model includes a recovery tank 1, a solenoid valve 4, a rotary joint 54, and a motor 9. A water injection pipe 2 is fixedly connected to the upper left of the recovery tank 1, and a drain pipe 3 is fixedly connected to the lower right of the recovery tank 1. Solenoid valves 4 are installed on both the drain pipe 3 and the water injection pipe 2. A first recovery component 5 is provided at the center of the inner side of the recovery tank 1, and a second recovery component 6 is provided on the outer side of the first recovery component 5. A bracket 7 is fixedly installed on the outer left side of the recovery tank 1, and a connecting pipe 8 is fixedly installed at the top of the bracket 7. A motor 9 is fixedly installed on the outer left side of the recovery tank 1, and a second gear 10 is fixedly connected to the output end of the motor 9.

[0027] Based on the above structure, the first recycling component 5 includes a hollow tube 51, a hollow spiral 52, a first gear 53, and a rotary joint 54. Both hollow tubes 51 are "L" shaped, and the horizontal sections of the two hollow tubes 51 are respectively sealed bearings installed at the center of the left and right ends of the recycling tank 1. A hollow spiral 52 is fixed between the two hollow tubes 51. The first gear 53 is fixedly sleeved on the outer side of the left hollow tube 51. A rotary joint 54 is installed at the opposite ends of the two hollow tubes 51.

[0028] In this embodiment, the hollow spiral 52 not only extends the flow of hot air but also increases the contact area with water, which is beneficial for the efficient absorption of heat by water.

[0029] Based on the above structure, the two hollow tubes 51 are connected to the interior of the hollow spiral 52, the first gear 53 and the second gear 10 mesh with each other, and the left hollow tube 51 is connected to the connecting tube 8 through the rotary joint 54.

[0030] In this embodiment, when the start motor 9 controls the second gear 10 to rotate, the first gear 53 meshing with the second gear 10 can control the two hollow tubes 51 and the hollow spiral 52 to rotate at a constant speed, which can stir the water in the recovery tank 1 and facilitate the uniform and rapid heating of the water.

[0031] Based on the above structure, the second recovery component 6 includes a discharge pipe 61, a suction pipe 62, a fixed pipe 63, a transition pipe 64, and a connecting pipe 65. The discharge pipe 61, the suction pipe 62, and several fixed pipes 63 are arranged in a ring around the hollow spiral 52. The discharge pipe 61, the suction pipe 62, and several fixed pipes 63 are fixedly connected to the transition pipe 64 in a staggered manner. The right end of the suction pipe 62 is fixedly connected to the connecting pipe 65.

[0032] Based on the above structure, the discharge pipe 61, the suction pipe 62 and the fixed pipe 63 are all fixedly connected to the recovery tank 1, and the other end of the connecting pipe 65 is connected to the hollow pipe 51 on the right side through the rotary joint 54.

[0033] In this embodiment, after passing through the hollow spiral 52, the hot gas can enter the suction pipe 62 through the right rotary joint 54 and the connecting pipe 65. Through multiple staggered transition pipes 64, multiple fixed pipes 63 and discharge pipe 61, the hot gas can be controlled to flow in an S-shaped curve around the transverse central axis of the recovery tank 1, which helps the water far away from the hollow spiral 52 to absorb heat and facilitates the full recovery and utilization of heat.

[0034] Based on the above structure, the hollow spiral 52, the discharge pipe 61, the suction pipe 62, the fixing pipe 63, and the transition pipe 64 are all made of ultra-thin copper.

[0035] In this embodiment, copper has good thermal conductivity, which facilitates the full exchange and absorption of heat.

[0036] The working principle of this utility model is as follows:

[0037] In use, firstly, cold water is added to the recovery tank 1 through the water injection pipe 2, and the solenoid valve 4 is closed, so that both the water injection pipe 2 and the drain pipe 3 are in a closed state. Then, the heating exhaust gas discharge pipe is fixedly connected to the connecting pipe 8, and the heating exhaust gas is fed into the hollow spiral 52 through the connecting pipe 8, the left rotary joint 54 and the left hollow pipe 51. The hollow spiral 52 can not only extend the flow of hot gas, but also increase the contact area between the hot gas and the water, which is conducive to the efficient absorption of heat by the water. After passing through the hollow spiral 52, the hot gas can enter the suction pipe 62 through the right rotary joint 54 and the connecting pipe 65. Through the multiple transition pipes 64 and the multiple fixed pipes 63 arranged in a staggered manner, the hot gas can be controlled to flow in an S-shaped curve around the transverse central axis of the recovery tank 1, which is convenient for the water far away from the hollow spiral 52 area to absorb the residual heat of the heating exhaust gas again, so as to achieve full heat recovery and higher recovery utilization rate. The heating exhaust gas after full heat recovery can be discharged into the existing exhaust gas purification equipment through the discharge pipe 61.

[0038] During the waste heat recovery process, the motor 9 can be started to control the second gear 10 to rotate, and the first gear 53 meshing with the second gear 10 can control the two hollow tubes 51 and the hollow spiral 52 to rotate at a uniform speed, which can stir the water in the recovery tank 1, making it easier for the water to be heated evenly and quickly. After the water is heated, the solenoid valve 4 on the drain pipe 3 can be opened to discharge and collect the hot water through the drain pipe 3.

[0039] It should be noted that the solenoid valve 4, rotary joint 54 and motor 9 in this technical solution are all existing products. The solenoid valve 4 and motor 9 are powered by an external power supply and controlled by an external controller. The specific control methods are all existing mature technologies, so they will not be described in detail in this article.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. A waste heat recovery and reuse device for heating projects, comprising a recovery tank (1), a solenoid valve (4), a rotary joint (54), and a motor (9), characterized in that: A water injection pipe (2) is fixedly connected to the upper left of the recycling tank (1), and a drain pipe (3) is fixedly connected to the lower right of the recycling tank (1). Solenoid valves (4) are installed on both the drain pipe (3) and the water injection pipe (2). A first recycling component (5) is provided at the center of the inner side of the recycling tank (1), and a second recycling component (6) is provided on the outer side of the first recycling component (5). A bracket (7) is fixedly installed on the outer left side of the recycling tank (1), and a connecting pipe (8) is fixedly installed at the top of the bracket (7). A motor (9) is fixedly installed on the outer left side of the recycling tank (1), and a second gear (10) is fixedly connected to the output end of the motor (9).

2. The waste heat recovery and reuse device for heating projects according to claim 1, characterized in that: The first recycling component (5) includes a hollow tube (51), a hollow spiral (52), a first gear (53), and a rotary joint (54). Both hollow tubes (51) are "L" shaped. The horizontal sections of the two hollow tubes (51) are respectively sealed bearings installed at the center of the left and right ends of the recycling tank (1). A hollow spiral (52) is fixed between the two hollow tubes (51). The first gear (53) is fixedly sleeved on the outside of the left hollow tube (51). A rotary joint (54) is installed at the opposite ends of the two hollow tubes (51).

3. The waste heat recovery and reuse device for heating projects according to claim 2, characterized in that: The two hollow tubes (51) are connected to the interior of the hollow spiral (52), the first gear (53) and the second gear (10) mesh with each other, and the hollow tube (51) on the left is connected to the connecting tube (8) through a rotary joint (54).

4. The waste heat recovery and reuse device for heating projects according to claim 3, characterized in that: The second recycling component (6) includes a discharge pipe (61), a suction pipe (62), a fixed pipe (63), a transition pipe (64), and a connecting pipe (65). The discharge pipe (61), the suction pipe (62), and several fixed pipes (63) are arranged in a ring around the hollow spiral (52). The discharge pipe (61), the suction pipe (62), and several fixed pipes (63) are fixedly connected to each other in a staggered manner by a transition pipe (64). The right end of the suction pipe (62) is fixedly connected to a connecting pipe (65).

5. A waste heat recovery and reuse device for heating projects according to claim 4, characterized in that: The discharge pipe (61), suction pipe (62) and fixed pipe (63) are all fixedly connected to the recovery tank (1), and the other end of the connecting pipe (65) is connected to the hollow pipe (51) on the right side through a rotary joint (54).

6. A waste heat recovery and reuse device for heating projects according to claim 5, characterized in that: The hollow spiral (52), discharge pipe (61), suction pipe (62), fixing pipe (63) and transition pipe (64) are all made of ultra-thin copper.

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