Heat energy recovery device for heat energy and power engineering

Abstract

The utility model discloses a heat energy recovery device for heat energy and power engineering, which belongs to the technical field of heat energy and power engineering heat energy recovery, and comprises a box body, an air inlet, an air outlet and a water inlet are arranged on the box body, a plurality of groups of U-shaped heat exchange tubes are vertically arranged in the box body, water collecting pipes are respectively arranged at the bottoms of each group of U-shaped heat exchange tubes, and the water collecting pipes are communicated with the box body. The water collecting pipe is communicated with a drainage pipe which extends to the outer side of the box body, and a drainage valve is arranged on the drainage pipe extending to the outer side of the box body. The heat energy recovery device is specially designed, and the heat energy recovery device is additionally provided with a heat exchange tube impurity and water leading-out mechanism, so that water impurities in the heat exchange tube can be discharged, and the water impurities are prevented from being accumulated in the heat exchange tube, corroding the heat exchange tube and affecting the heat transfer efficiency of the heat exchange tube and heat energy recovery.

Description

Technical Field

[0001] The utility model relates to the technical field of heat energy recovery for thermal energy and power engineering, and in particular to a heat energy recovery device for thermal energy and power engineering. Background Art

[0002] Power engineering is a field of applied engineering technology that studies the theories and technologies of energy conversion, transmission and utilization in the engineering field, improves energy utilization, reduces primary energy consumption and pollutant emissions, and promotes the sustainable development of the national economy. It is closely related to human production and life.

[0003] In the construction of power engineering, a large amount of heat energy will be generated. In order to save resources, heat recovery devices are often indispensable. However, after long-term use of current heat recovery equipment, moisture and impurities mixed in the engineering hot gas will accumulate in the heat exchange tubes, which will not only corrode the heat exchange tubes, but also reduce the heat transfer efficiency of the heat exchange tubes, affecting the heat recovery efficiency. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a heat energy recovery device for thermal energy and power engineering; the heat energy recovery device for thermal energy and power engineering is specially designed for heat energy recovery devices. This solution adds a heat exchange tube impurity moisture extraction mechanism to the heat energy recovery device, so that moisture impurities in the heat exchange tube can be discharged to avoid accumulation in the heat exchange tube, corrosion of the heat exchange tube, and influence on the heat transfer efficiency of the heat exchange tube and the recovery of heat energy.

[0005] In order to solve the above technical problems, the utility model provides a heat recovery device for thermal energy and power engineering, including a box body, on which is provided an air inlet, an air outlet and a water inlet, wherein a plurality of groups of U-shaped heat exchange tubes are vertically arranged in the box body, and a water collecting pipe is respectively provided at the bottom of each group of U-shaped heat exchange tubes, and the water collecting pipe is connected to a drain pipe, which extends to the outside of the box body, and a drain valve is provided on the drain pipe extending to the outside of the box body.

[0006] In a further improvement of the utility model, the water collecting pipe is connected with a solenoid valve, and the solenoid valve is connected with a drainage pipe.

[0007] Through the above design, this solution can more easily control the connection between the water collecting pipe and the drainage pipe, and is more conducive to disconnecting the connection between the U-shaped heat exchange tube and the drainage pipe during the heat exchange process, thereby better avoiding affecting the heat exchange effect.

[0008] In a further improvement of the utility model, the box body is provided with an upper opening, and the upper opening is detachably connected with a box cover.

[0009] Through the above design, this solution can make it easier to maintain the U-shaped heat exchange tubes in the box at a later stage.

[0010] In a further improvement of the utility model, a sealing ring is arranged at the bottom of the box cover, and the sealing ring is sealed and connected to the upper opening.

[0011] Through the above design, this solution can facilitate the sealing of the connection between the box cover and the box body, and better avoid the heat energy loss of the liquid in the box. The sealing ring can be made of rubber or silicone, which is affordable and has a good sealing effect.

[0012] In a further improvement of the utility model, a water inlet is arranged on the box cover, and the water inlet is connected with a water inlet pipe.

[0013] Through the above design, this solution can be more convenient for adding and extracting heat exchange liquid in the box. When in use, the heat exchange liquid (generally water) is first added into the box through the water inlet, and then the engineering hot gas passes through the U-shaped heat exchange tube. The engineering hot gas exchanges heat with the heat exchange liquid in the process of passing through the U-shaped heat exchange tube. After the heat exchange is completed, the heat exchanged liquid is extracted through the water inlet for use.

[0014] In a further improvement of the utility model, an air inlet and an air outlet are respectively provided on the upper portions of the side walls on the left and right sides of the box body.

[0015] Through the above design, this solution can facilitate the installation of the drain pipe and better avoid interference between the drain pipe extending out of the box and the air outlet pipe.

[0016] In a further improvement of the utility model, the air inlet is connected to an air inlet pipe outside, the air inlet is connected to a U-shaped heat exchange pipe inside, the U-shaped heat exchange pipe is connected to the air outlet, and the air outlet is connected to an air outlet pipe outside.

[0017] Through the above design, this solution can facilitate smooth circulation of hot air in the project.

[0018] In a further improvement of the utility model, the U-shaped heat exchange tube adopts a curved copper tube.

[0019] By adopting the above existing design, this solution can more easily reduce research and development costs, realize productization as soon as possible, and generate economic benefits.

[0020] In a further improvement of the utility model, the above-mentioned drain valve is connected to a pump.

[0021] Through the above design, this solution can more easily discharge the moisture and impurities in the U-shaped heat exchange tube, and the pump can be a water pump or a negative pressure pump.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model is specially designed for heat recovery device. In this scheme, the U-shaped heat exchange tube in the box is installed vertically, and a water collecting pipe is installed at the bottom of the U-shaped heat exchange tube, so that the moisture and impurities mixed in the engineering hot gas fall to the drain pipe under the influence of their own gravity, and finally the moisture and impurities are discharged from the U-shaped heat exchange tube by the drain valve, so as to avoid the accumulation of moisture and impurities in the heat exchange tube, corrosion of the heat exchange tube, and influence of the heat transfer efficiency of the heat exchange tube and the recovery of heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the background technology or the technical solution of the utility model, the following is a brief introduction to the drawings used in conjunction with the prior art or specific implementation methods; obviously, the structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0025] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0026] As shown in the figure: 1-box body; 2-air inlet; 3-air outlet; 4-U-shaped heat exchange tube; 5-water collecting pipe; 6-solenoid valve; 7-drain pipe; 8-drain valve; 9-box cover; 10-water inlet; 11-water inlet pipe; 12-air inlet pipe; 13-air outlet pipe. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative work should fall within the scope of protection of the present invention.

[0028] At the same time, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like cited in this specification indicate orientations or positional relationships based on the orientations or positional relationships 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. Therefore, they cannot be understood as limitations on the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0029] At the same time, in the description of this specification, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" 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 an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0030] After long-term use, moisture and impurities mixed in the engineering hot gas of current heat recovery equipment will accumulate in the heat exchange tubes, which will not only corrode the heat exchange tubes, but also reduce the heat transfer efficiency of the heat exchange tubes and affect the heat recovery efficiency.

[0031] Therefore, the design concept of the present application is to add a moisture and impurity discharge mechanism to the heat exchange tube to prevent moisture and impurities from accumulating in the heat exchange tube, corroding the heat exchange tube, and affecting the heat exchange efficiency of the heat exchange tube.

[0032] like Figure 1 As shown, the present application provides a heat recovery device for thermal energy and power engineering, including a box body 1, on which an air inlet 2, an air outlet 3 and a water inlet 10 are provided, and a plurality of groups of U-shaped heat exchange tubes 4 are vertically arranged in the box body 1, and a water collecting pipe 5 is respectively provided at the bottom of each group of U-shaped heat exchange tubes 4, and the water collecting pipe 5 is connected to a drain pipe 7, which extends to the outside of the box body 1, and a drain valve 8 is provided on the drain pipe 7 extending to the outside of the box body 1.

[0033] The water collecting pipe 5 is connected to a solenoid valve 6, which is connected to a drain pipe 7; an upper opening is provided on the box body 1, and a box cover 9 is detachably connected to the upper opening; a sealing ring is provided at the bottom of the box cover 9, and the sealing ring is sealed and connected to the upper opening; a water inlet 10 is provided on the box cover 9, and the water inlet 10 is connected to a water inlet pipe 11.

[0034] An air inlet 2 and an air outlet 3 are respectively provided on the upper part of the side walls on the left and right sides of the box body 1; the air inlet 1 is connected to an air inlet pipe 12 outside, the air inlet 2 is connected to a U-shaped heat exchange tube 4 inside, the U-shaped heat exchange tube 4 is connected to the air outlet 3, and the air outlet 3 is connected to an air outlet pipe 13 outside; the U-shaped heat exchange tube 4 is a curved copper tube.

[0035] The steps of using this solution are as follows: guide the heat exchange liquid into the box body---use the air inlet pipe to pass the engineering hot air into the U-shaped heat exchange tube---the engineering hot air in the U-shaped heat exchange tube exchanges heat with the heat exchange liquid---the engineering hot air after heat exchange is discharged from the air outlet pipe---the heat exchange liquid in the box body is discharged through the water inlet and the water inlet pipe for use.

[0036] When the engineering hot air passes through the U-shaped heat exchange tube, the moisture and impurities mixed in the engineering hot air will gather in the water collecting pipe at the bottom of the U-shaped heat exchange tube under the influence of its own gravity. When the heat exchange is completed, the solenoid valve and pump are opened to pump the moisture and impurities in the water collecting pipe to the drain pipe, and finally discharged by the drain valve.

[0037] Although the present invention has been described in detail with reference to the accompanying drawings and in combination with preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, ordinary technicians in the field can make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions should all be within the scope of the present invention. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present invention, which should all be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A heat recovery device for thermal energy and power engineering, comprising a box body, the box body is provided with an air inlet, an air outlet and a water inlet, characterized in that: A plurality of groups of U-shaped heat exchange tubes are vertically arranged in the box body, and a water collecting pipe is arranged at the bottom of each group of U-shaped heat exchange tubes. The water collecting pipe is connected with a drainage pipe, and the drainage pipe extends to the outside of the box body. A drainage valve is arranged on the drainage pipe extending to the outside of the box body.

2. The heat recovery device for thermal energy and power engineering according to claim 1, characterized in that: The water collecting pipe is connected with a solenoid valve, and the solenoid valve is connected with a drain pipe.

3. The heat recovery device for thermal energy and power engineering according to claim 1, characterized in that: The box body is provided with an upper opening, and the upper opening is detachably connected with a box cover.

4. The heat recovery device for thermal energy and power engineering according to claim 3, characterized in that: A sealing ring is arranged at the bottom of the box cover, and the sealing ring is sealed and connected with the upper opening.

5. The heat recovery device for thermal energy and power engineering according to claim 3, characterized in that: The box cover is provided with a water inlet, which is connected with a water inlet pipe.

6. The heat recovery device for thermal energy and power engineering according to claim 1, characterized in that: An air inlet and an air outlet are respectively arranged on the upper parts of the side walls on the left and right sides of the box body.

7. The heat recovery device for thermal energy and power engineering according to claim 6, characterized in that: The air inlet is connected to an air inlet pipe outside, the air inlet is connected to a U-shaped heat exchange pipe inside, the U-shaped heat exchange pipe is connected to the air outlet, and the air outlet is connected to an air outlet pipe outside.

8. The heat recovery device for thermal energy and power engineering according to claim 1, characterized in that: The U-shaped heat exchange tube is a curved copper tube.

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