A waste energy recycler

Abstract

The utility model discloses a kind of waste energy recovery device, including storage tank, low-pressure steam conveying device and second recovery pipe connected in the side of low-pressure steam conveying device, the top of the storage tank is equipped with injection pipe for introducing high-temperature steam condensate water, the inside of this storage tank is equipped with filter part, the inside of low-pressure steam conveying device is installed with heat conducting plate, the heat conducting plate is collected in the high-temperature heat of water storage tank rapidly conducted to low-pressure steam conveying device, and the high-temperature heat collected by low-pressure steam conveying device is collected and utilized by second recovery pipe;The utility model can speed up the transmission speed of high-temperature heat, improve the recovery speed of high-temperature heat, and utilize low-pressure steam conveying device to play the heat preservation effect to the recovered high-temperature heat, realize the recycling of high-temperature heat energy, effectively avoid the loss of heat in the recovery process, reduce the industrial energy consumption generated in industrial production, improve the recovery efficiency of high-temperature heat.

Description

Technical Field

[0001] This utility model relates to the field of energy recovery, specifically a waste energy recovery device. Background Technology

[0002] Steam generated by industrial boilers produces a large amount of high-temperature steam and condensate after being heated by heat-using equipment. The high-temperature condensate is mixed with low-pressure saturated steam, which is called exhaust steam. Due to the low pressure of the exhaust steam, it is transported to the deaerator head of the deaerator for heating and use using a special low-speed conveying device. However, directly venting it would waste energy and water resources. Therefore, different types of waste energy recovery devices have emerged on the market, which recover only hot water and not steam, or recover hot water and part of the steam, to recover and utilize exhaust steam generated by industrial boilers.

[0003] However, most waste energy recovery devices currently on the market use recovery pipes to recover and reuse high-temperature steam water, which is then reintroduced into industrial boilers. Because the recovered high-temperature steam water contains many impurities, it can easily cause great damage to industrial boilers. In addition, the recovery speed of the recovery pipes is relatively slow, and a large amount of high-temperature heat is lost during the high-temperature heat recovery process. The high energy consumption of industrial plants makes the high-temperature steam water recovery efficiency low, and the energy saving and consumption reduction effect is not ideal. Therefore, a waste energy recovery device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a waste energy recovery device to solve the problems mentioned in the background art, such as the high amount of impurities in the recovered high-temperature steam water, the slow recovery speed of the recovery pipe, the large amount of high-temperature heat loss during the recovery process, and the low efficiency of high-temperature steam water recovery due to the large industrial energy consumption.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A waste energy recovery device includes a storage tank, a low-pressure steam conveying device, and a second recovery pipe connected to the side of the low-pressure steam conveying device. The top of the storage tank is provided with an injection pipe for introducing high-temperature steam condensate. The storage tank has a filter inside, and the bottom of the storage tank is connected to a water pump through a conveying pipe. One end of the water pump is connected to a deaerator. A heat-conducting plate is installed inside the low-pressure steam conveying device. One end of the heat-conducting plate passes through the left side of the low-pressure steam conveying device and extends into the storage tank. The other end of the heat-conducting plate is immersed in the low-pressure steam conveying device. The heat-conducting plate quickly conducts the high-temperature heat collected in the storage tank to the low-pressure steam conveying device, and the high-temperature heat collected by the low-pressure steam conveying device is collected and utilized through the second recovery pipe. The top of the storage tank is connected to a first recovery pipe, which is used to recover the heat in the storage tank and introduce it into the second recovery pipe. The lumen of the first recovery pipe is in communication with the lumen of the second recovery pipe.

[0006] Furthermore, the filtration section consists of a filter cage for collecting high-temperature steam condensate and a filter screen placed horizontally inside the filter cage. The inner wall of the storage tank is equipped with a support block for supporting the filter cage, and the support block has a circular shape when viewed from above.

[0007] Furthermore, the filter screen is provided with at least one set, and the filter screen is a stainless steel multi-layer filter screen or a ceramic multi-layer filter screen.

[0008] Furthermore, the heat-conducting plate is not attached to the bottom of the low-pressure steam conveying device. The heat-conducting plate has a U-shaped cross-section and a rectangular shape when viewed from above. The heat-conducting plate is made of red copper.

[0009] Furthermore, the low-pressure steam conveying device is detachably connected to the outer wall of the storage tank via fasteners, and the low-pressure steam conveying device is made of polyethylene insulation material.

[0010] Furthermore, one end of the second recovery pipe and the deaerator are both connected to an industrial boiler via pipelines to recover and reuse high-temperature steam water.

[0011] The beneficial effects of this utility model are: This invention utilizes a heat-conducting plate to accelerate the transfer of high-temperature heat and improve the recovery speed of high-temperature heat. It also uses a low-pressure steam conveying device to keep the recovered high-temperature heat warm, thereby realizing the recovery and utilization of high-temperature thermal energy. This effectively avoids heat loss during the recovery process, reduces industrial energy consumption in industrial production, and improves the recovery efficiency of high-temperature heat, which is conducive to the promotion and use of this waste energy recovery device.

[0012] This invention utilizes a filtration unit to filter and remove impurities from high-temperature steam water, reducing the impurity content in the steam water. This effectively filters and removes impurities from the high-temperature steam entering the water pump, deaerator, and low-pressure steam conveying device, reducing the corrosion caused by impurities in the steam water to the water pump, deaerator, and low-pressure steam conveying device. It also facilitates the transfer of filtered steam water to industrial boilers for reuse, achieving the goal of energy conservation and emission reduction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the waste energy recycling device of this utility model; Figure 2 This is a structural cross-sectional view of the storage tank and low-pressure steam conveying device of this utility model in combination. Figure 3 This is a front view of the structure of the storage tank and low-pressure steam conveying device of this utility model in combination. Figure 4 This is a cross-sectional view of the storage tank of this utility model.

[0014] In the diagram: 1. Storage tank; 101. Perforation; 2. Support block; 3. Filter section; 301. Filter cage; 302. Filter screen; 4. Injection pipe; 5. Delivery pipe; 6. Water pump; 7. Deaerator; 8. Low-pressure steam delivery device; 9. Heat conduction plate; 10. First recovery pipe; 11. Second recovery pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This invention provides a technical solution for a waste energy recovery device, comprising a storage tank 1, a low-pressure steam conveying device 8, and a second recovery pipe 11 connected to the side of the low-pressure steam conveying device 8. The top of the storage tank 1 is provided with an injection pipe 4 for introducing high-temperature steam condensate. The storage tank 1 has a filter section 3 inside, and the bottom of the storage tank 1 is connected to a water pump 6 via a conveying pipe 5. One end of the water pump 6 is connected to a deaerator 7. A heat-conducting plate 9 is installed inside the low-pressure steam conveying device 8. One end of the heat-conducting plate 9 passes through the left side of the low-pressure steam conveying device 8 and extends into the storage tank 1. The other end of the heat-conducting plate 9 is immersed in the low-pressure steam conveying device 8. The heat-conducting plate 9 rapidly conducts the high-temperature heat collected in the storage tank 1 to the low-pressure steam conveying device 8, and the high-temperature heat collected by the low-pressure steam conveying device 8 is collected and utilized through the second recovery pipe 11. The heat plate 9 is not attached to the bottom of the low-pressure steam conveying device 8. The heat plate 9 has a U-shaped cross-section and a rectangular shape when viewed from above. The heat plate 9 is made of, but is not limited to, red copper. The top of the storage tank 1 is connected to a first recovery pipe 10, which is used to recover heat from the storage tank 1 and introduce it into a second recovery pipe 11. The lumen of the first recovery pipe 10 is connected to the lumen of the second recovery pipe 11. The second recovery pipe 11 and one end of the deaerator 7 are both connected to an industrial boiler through pipes to recover and utilize high-temperature steam water. The low-pressure steam conveying device 8 is detachably connected to the outer wall of the storage tank 1 by fasteners. The low-pressure steam conveying device 8 is made of, but is not limited to, polyethylene insulation material. The fasteners can be, but are not limited to, screws, bolts, or bolts. The storage tank 1 has a perforation 101 on its side for the heat plate 9 to pass through.

[0017] In this embodiment, the filter section 3 consists of a filter cage 301 for collecting high-temperature steam condensate and a filter screen 302 placed horizontally inside the filter cage 301. The inner wall of the storage tank 1 is equipped with a support block 2 for supporting the filter cage 301, and the top view of the support block 2 is a circular structure. At least one set of filter screens 302 is provided. The filter screen 302 is made of, but is not limited to, stainless steel multilayer filter screens or ceramic multilayer filter screens. It should be noted that multilayer filter screens are usually composed of three or more filter layers of different precision. Each layer undertakes a specific filtration task. Multilayer filter screens are a high-efficiency filtration device / material that achieves gradient filtration through multilayer structure design. The core logic is "coarse → fine" step-by-step interception: the upper filter screen intercepts large particles of impurities, the middle filter screen processes medium particles, and the terminal filter screen intercepts small particles, thereby improving the overall filtration efficiency and extending the service life.

[0018] In this process, when the high-temperature steam condensate generated by the industrial boiler enters the storage tank 1 through the injection pipe 4, it falls into the filter cage 301 under gravity. The filter cage 301 and the filter screen 302 filter and remove impurities from the high-temperature steam condensate. At least one set of filter screens 302 filters and removes impurities from the steam condensate in stages to reduce the impurity content in the high-temperature steam condensate. Then, the high-temperature steam water accumulates in the storage tank 1. The generated high-temperature steam rises and is pre-collected through the first recovery pipe 10. One end of the heat-conducting plate 9 is placed in the storage tank 1 to conduct the high-temperature heat of the high-temperature steam water to the low-pressure steam conveying device 8, so that a large amount of high-temperature heat accumulates in the low-pressure steam conveying device 8. The low-pressure steam conveying device 8 insulates the high-temperature heat to avoid wasting the heat resources in the high-temperature steam. The heat is then collected by the low-pressure steam conveying device 8 through the second recovery pipe 11. The high-temperature heat from insulation is recovered and reused. The recovered high-temperature heat can be introduced into the industrial boiler for further recovery through the second recovery pipe 11. The low-pressure steam conveying device 8 can keep the recovered high-temperature heat warm, effectively preventing heat loss during the recovery process and improving the recovery efficiency of high-temperature heat. The heat-conducting plate 9 can accelerate the transfer speed of high-temperature heat, thereby improving the recovery speed of high-temperature heat. The high-temperature steam water filtered by the filter section 3 can be transported to the deaerator 7 for deoxygenation treatment through the conveying pipe 5 and the water pump 6. The treated high-temperature steam water is then transported to the industrial boiler for reuse. The filter section 3 can reduce the impurity content in the high-temperature steam water, thereby reducing the corrosion caused by impurities to the water pump 6 and the deaerator 7, and thus extending the service life of the water pump 6 and the deaerator 7.

[0019] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0020] The above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. In the present utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection; it can refer to a direct connection. Among these, there are various ways to install detachably, such as by using a plug-in and snap-fit ​​method, or by using a bolt connection, etc.

[0021] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste energy recovery device, characterized in that: The system includes a storage tank, a low-pressure steam conveying device, and a second recovery pipe connected to the side of the low-pressure steam conveying device. The top of the storage tank is equipped with an injection pipe for introducing high-temperature steam condensate. The storage tank has a filter inside, and the bottom of the storage tank is connected to a water pump via a conveying pipe. One end of the water pump is connected to a deaerator. A heat-conducting plate is installed inside the low-pressure steam conveying device. One end of the heat-conducting plate passes through the left side of the low-pressure steam conveying device and extends into the storage tank. The other end of the heat-conducting plate is immersed in the low-pressure steam conveying device. The heat-conducting plate quickly conducts the high-temperature heat collected in the storage tank to the low-pressure steam conveying device, and the high-temperature heat collected by the low-pressure steam conveying device is collected and utilized through the second recovery pipe. The top of the storage tank is connected to a first recovery pipe, which is used to recover the heat in the storage tank and introduce it into the second recovery pipe. The lumen of the first recovery pipe is connected to the lumen of the second recovery pipe.

2. A waste energy recycler as claimed in claim 1 wherein: The filtration section consists of a filter cage for collecting high-temperature steam condensate and a filter screen placed horizontally inside the filter cage. The inner wall of the storage tank is equipped with a support block for supporting the filter cage, and the support block has a circular shape when viewed from above.

3. A waste energy recycler as claimed in claim 2, wherein: The filter screen is provided in at least one set, and the filter screen is a multi-layer stainless steel filter screen or a multi-layer ceramic filter screen.

4. The waste energy recovery device according to claim 1, characterized in that: The heat-conducting plate is not attached to the bottom of the low-pressure steam conveying device. The heat-conducting plate has a "U" shaped cross-section and a rectangular shape when viewed from above. The heat-conducting plate is made of red copper.

5. A waste energy recovery device according to claim 1, characterized in that: The low-pressure steam conveying device is detachably connected to the outer wall of the storage tank by fasteners, and the low-pressure steam conveying device is made of polyethylene insulation material.

6. The waste energy recovery device according to claim 1, characterized in that: Both the second recovery pipe and one end of the deaerator are connected to an industrial boiler via pipelines to recover and reuse high-temperature steam water.

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