Chemical waste heat recycling device based on energy consumption optimization system

Abstract

The utility model relates to the field of chemical production, in particular to a chemical waste heat recycling device based on an energy consumption optimization system, which comprises a two-way heat exchange device, the two-way heat exchange device comprises an upper heat exchange cavity and a lower heat exchange cavity, a breather pipe is fixedly communicated between the upper heat exchange cavity and the lower heat exchange cavity, and a connecting pipe is sleeved in the breather pipe. The upper end of the connecting pipe fixedly communicates with an upper heat exchange pipe, and the upper heat exchange pipe is arranged in the upper heat exchange cavity in a sleeved mode. The lower end of the connecting pipe fixedly communicates with a lower heat exchange pipe, and the lower heat exchange pipe is arranged in the lower heat exchange cavity in a sleeved mode. The device has the beneficial effects that the bidirectional heat exchange device is arranged, so that cooling water exchanges heat with waste gas from two directions in the heat exchange process, the temperature difference between the waste gas and the cooling water is kept in a relatively large range, the cooling rate of the waste gas is relatively high in the heat exchange distance with the same length, the heat exchange is more sufficient, and the heat exchange efficiency is improved. And the heat energy recovery mode is more optimized.

Description

Technical Field

[0001] The utility model relates to the field of chemical production, and specifically relates to a chemical waste heat recovery and utilization device based on an energy consumption optimization system. Background Technique

[0002] Chemical waste heat, also known as waste heat, refers to the heat energy that is discharged and no longer utilized after the heat energy produced and manufactured for a certain need in human activities is used up. However, although waste heat cannot be continuously used for current chemical production, it can still be recovered in another way. Usually, a device is used to absorb the heat in the waste gas through water for other uses.

[0003] Traditional waste heat recovery devices usually have a single water flow pipeline, which makes the waste gas contact the cooling pipeline for heat exchange. However, during the cooling process, since the temperature of the water in the cooling pipeline rises, the temperature difference between the water and the waste gas becomes smaller, the heat exchange efficiency decreases, resulting in insufficient heat exchange. When exchanging energy, there is still a lot of heat energy that has not been fully exchanged. For this reason, the utility model proposes a chemical waste heat recovery and utilization device based on an energy consumption optimization system to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a chemical waste heat recovery and utilization device based on an energy consumption optimization system to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A chemical waste heat recovery and utilization device based on an energy consumption optimization system, including a two-way heat exchange device. The two-way heat exchange device includes an upper heat exchange chamber and a lower heat exchange chamber. A ventilation pipe is fixedly connected in the middle of the upper heat exchange chamber and the lower heat exchange chamber. A connecting pipe is sleeved in the ventilation pipe. The upper end of the connecting pipe is fixedly connected to an upper heat exchange pipe, and the upper heat exchange pipe is sleeved in the upper heat exchange chamber; the lower end of the connecting pipe is fixedly connected to a lower heat exchange pipe, and the lower heat exchange pipe is sleeved in the lower heat exchange chamber.

[0006] Preferably, a water outlet pipe is communicated with the outside of the lower heat exchange pipe, and a water outlet valve is sleeved outside the water outlet pipe.

[0007] Preferably, a partition valve is sleeved outside the connecting pipe.

[0008] Preferably, an air outlet is fixedly communicated with the upper end of the upper heat exchange chamber.

[0009] Preferably, an air inlet is fixedly communicated with the lower end of the lower heat exchange chamber.

[0010] Preferably, a heat insulation support pad is fixedly connected between the upper heat exchange chamber and the lower heat exchange chamber.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] By providing a two-way heat exchange device, the utility model enables cooling water to conduct heat exchange with exhaust gas from two directions during the heat exchange process, keeping the temperature difference between the exhaust gas and the cooling water within a relatively large range. This allows for a higher rate of exhaust gas cooling within the same length of heat exchange distance, making the heat exchange more thorough and optimizing the heat energy recovery method. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the utility model;

[0014] Figure 2 is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 is Figure 2 an enlarged schematic diagram of part A in

[0016] In the figure: 1 water outlet pipe, 2 upper heat exchange chamber, 3 lower heat exchange chamber, 4 upper water inlet, 5 lower water inlet, 6 air inlet, 7 isolation valve, 8 heat insulation support pad, 9 water outlet valve, 10 lower heat exchange pipe, 11 upper heat exchange pipe, 12 ventilation pipe, 13 connecting pipe, 14 air outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to clearly and completely describe the purpose, technical solution of the utility model and make the advantages more clearly understood, the following further details the embodiments of the utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some but not all of the embodiments of the utility model, and are only used to explain the embodiments of the utility model, not to limit the embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the utility model.

[0018] In the description of the utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] For the purposes of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are set forth to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring these embodiments. Additionally, all embodiments can be used in combination with each other.

[0021] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a chemical industrial waste heat recovery and utilization device based on an energy consumption optimization system, including a two-way heat exchange device. The two-way heat exchange device includes an upper heat exchange chamber 2 and a lower heat exchange chamber 3. A ventilation pipe 12 is fixedly connected and communicated in the middle of the upper heat exchange chamber 2 and the lower heat exchange chamber 3. A connecting pipe 13 is sleeved inside the ventilation pipe 12. The upper end of the connecting pipe 13 is fixedly connected and communicated with an upper heat exchange pipe 11, and the upper heat exchange pipe 11 is sleeved inside the upper heat exchange chamber 2; the lower end of the connecting pipe 13 is fixedly connected and communicated with a lower heat exchange pipe 10, and the lower heat exchange pipe 10 is sleeved inside the lower heat exchange chamber 3. The waste gas in the upper heat exchange chamber 2 and the lower heat exchange chamber 3 exchanges through the ventilation pipe 12, and the water inside the upper heat exchange pipe 11 and the lower heat exchange pipe 10 converges and flows out for recovery through a water outlet pipe 1.

[0022] A water outlet pipe 1 is communicated with the outside of the lower heat exchange pipe 10. A water outlet valve 9 is sleeved outside the water outlet pipe 1. A partition valve 7 is sleeved outside the connecting pipe 13. An air outlet 14 is fixedly connected and communicated with the upper end of the upper heat exchange chamber 2. An air inlet 6 is fixedly connected and communicated with the lower end of the lower heat exchange chamber 3. A heat insulation support pad 8 is fixedly connected between the upper heat exchange chamber 2 and the lower heat exchange chamber 3. The waste gas enters the lower heat exchange chamber 3 from the air inlet 6 and conducts sufficient heat exchange with the lower heat exchange pipe 10 in the lower heat exchange chamber 3. The waste gas enters the upper heat exchange chamber 2 through the ventilation pipe 12 and exchanges heat with the upper heat exchange pipe 11 with a larger temperature difference, and then can flow out from the air outlet 14 at a lower temperature. The partition valve 7 can only use the lower heat exchange chamber 3 to work when the heat exchange demand and the waste heat quantity are small.

[0023] In actual use, the waste gas enters the lower heat exchange chamber 3 from the air inlet 6, and undergoes sufficient heat exchange with the lower heat exchange tubes 10 in the lower heat exchange chamber 3. The waste gas then enters the upper heat exchange chamber 2 through the ventilation pipe 12 and exchanges heat with the upper heat exchange tubes 11 with a relatively large temperature difference, and then flows out from the air outlet 14 at a relatively low temperature. The water inside the upper heat exchange tubes 11 and the lower heat exchange tubes 10 converges and is recovered by flowing out through the water outlet pipe 1. The isolation valve 7 can only use the lower heat exchange chamber 3 when the heat exchange demand and the waste heat are relatively small.

[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical waste heat recovery and utilization device based on an energy consumption optimization system, characterized in that: include A bidirectional heat exchange device, the bidirectional heat exchange device comprising an upper heat exchange chamber (2) and a lower heat exchange chamber (3), a vent pipe (12) being fixedly connected between the upper heat exchange chamber (2) and the lower heat exchange chamber (3), a connecting pipe (13) being sleeved inside the vent pipe (12), an upper end of the connecting pipe (13) being fixedly connected to an upper heat exchange pipe (11), and the upper heat exchange pipe (11) being sleeved inside the upper heat exchange chamber (2); The lower end of the connecting pipe (13) is fixedly connected to a lower heat exchange pipe (10), and the lower heat exchange pipe (10) is sleeved in the lower heat exchange cavity (3).

2. The chemical waste heat recovery and utilization device based on the energy consumption optimization system according to claim 1 is characterized in that: The outer side of the lower heat exchange tube (10) is connected to a water outlet pipe (1), and the outer side of the water outlet pipe (1) is sleeved with a water outlet valve (9).

3. The chemical waste heat recovery and utilization device based on the energy consumption optimization system according to claim 1 is characterized in that: The outer side of the connecting pipe (13) is sleeved with a cut-off valve (7).

4. The chemical waste heat recovery and utilization device based on the energy consumption optimization system according to claim 1 is characterized in that: The upper end of the upper heat exchange chamber (2) is fixedly connected to a gas outlet (14).

5. The chemical waste heat recovery and utilization device based on the energy consumption optimization system according to claim 1 is characterized in that: The lower end of the lower heat exchange chamber (3) is fixedly connected to an air inlet (6).

6. The chemical waste heat recovery and utilization device based on the energy consumption optimization system according to claim 1 is characterized in that: A heat insulation support pad (8) is fixedly connected between the upper heat exchange chamber (2) and the lower heat exchange chamber (3).

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