An external circulation heat exchange device for a sewage treatment system

Abstract

The utility model discloses an external circulation heat exchange device for a sewage treatment system, the external circulation heat exchange device comprises a first circulation channel, a heat exchange channel, two first control components and two second control components, the flow direction of the sewage is constrained by controlling the two first control components and the two second control components, when the sewage temperature does not meet the treatment requirement, a heat source is introduced into the second inlet of the heat exchange part, and the sewage passes through the heat exchange channel, and then the sewage exchanges heat with the heat source through the heat exchange part, so that the sewage reaches the temperature required for treatment, so that the restart heating speed of the sewage treatment system in a low temperature environment or after a long period of shutdown is accelerated, and the water intake is avoided to be limited due to insufficient operating temperature, so as to keep the treatment operation reliable.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to an external circulation heat exchange device of a sewage treatment system. Background Art

[0002] In many chemical fields, the treatment of production wastewater is a key issue. If high-concentration wastewater is not treated, its discharge will have an impact on the environment.

[0003] During the treatment process, the operation of the system also affects the production load, and the water intake cannot be increased quickly, limiting the treatment capacity. In the existing sewage treatment system cycle, the sewage treatment system has a very slow restart speed in a low temperature environment or after a long shutdown, which is restricted by the water intake due to insufficient operating temperature. Utility Model Content

[0004] In view of the defects existing in the prior art, the present application provides an external circulation heat exchange device for a sewage treatment system to solve the problem that the circulating operating temperature of the sewage treatment system in the prior art does not meet the requirements.

[0005] The above-mentioned purpose of the present application is mainly achieved through the following technical solutions:

[0006] An external circulation heat exchange device for a sewage treatment system, the external circulation heat exchange device comprising:

[0007] a first circulation channel, the first circulation channel having a first inlet and a first outlet for connecting to a sewage treatment system respectively, and a driving part is provided on the first circulation channel;

[0008] a heat exchange channel, the heat exchange channel being connected to the first circulation channel, the heat exchange channel being provided with a heat exchange portion so as to exchange heat with the sewage passing through the heat exchange channel, the heat exchange portion being provided with a second inlet and a second outlet for heat source to enter and discharge;

[0009] Two first control components and two second control components, the two first control components are arranged on the first circulation channel to allow the sewage to pass through the heat exchange channel, and the two second control components are arranged on the heat exchange channel to allow the sewage to pass through the first circulation channel.

[0010] In an optional embodiment, a first temperature detection part and a first flow detection part are respectively provided on the heat exchange channels located on both sides of the heat exchange part.

[0011] In an optional embodiment, a second temperature detection unit and a second flow detection unit are provided between the two first control members.

[0012] In an optional embodiment, the first control component and the second control component are control valves respectively.

[0013] In an optional embodiment, the driving unit adopts a circulation pump.

[0014] In an optional embodiment, a third temperature detection unit is provided at one end of the first circulation channel close to the first outlet.

[0015] In an optional embodiment, the heat exchange part adopts a plate heat exchange device.

[0016] In an optional embodiment, two third control members are provided on the heat exchange channel.

[0017] In an optional embodiment, a fourth temperature detection portion and a fourth flow detection portion are provided on the heat exchange channel.

[0018] In an optional embodiment, the two third control members are arranged between the fourth temperature detection part and the fourth flow detection part.

[0019] Compared with the prior art, the advantages of this application are:

[0020] The external circulation heat exchange device in the present application is installed on the existing sewage treatment system, and the external circulation heat exchange device includes: a first circulation channel having a first inlet and a first outlet for connecting the sewage treatment system respectively, and a driving part is provided on the first circulation channel; a heat exchange channel is provided on the first circulation channel, and a heat exchange part is provided on the heat exchange channel to make the sewage passing through the heat exchange channel undergo heat exchange, and a second inlet and a second outlet are provided on the heat exchange part for heat source to enter and discharge; two first control members are provided on the first circulation channel, and two second control members are provided on the heat exchange channel to make the sewage pass through the heat exchange channel or the first circulation channel. In the actual operation process, the flow direction of the sewage is restricted by controlling the two first control members and the two second control members. When the sewage temperature does not meet the treatment requirements, the heat source is introduced into the second inlet of the heat exchange part, and the sewage passes through the heat exchange channel, so that the sewage exchanges heat with the heat source through the heat exchange part, so that the sewage reaches the temperature required for treatment, so that the sewage treatment system can be restarted in a low temperature environment or after a long shutdown. The heating speed is accelerated to avoid being restricted by the water intake due to insufficient operating temperature, and the treatment operation is kept reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A connection diagram of an external circulation heat exchange device is provided for an embodiment of the present application;

[0023] In the figure: 100, first circulation channel; 101, first inlet; 102, first outlet; 103, driving part; 200, heat exchange channel; 201, heat exchange part; 202, second inlet; 203, second outlet; 301, first control element; 302, second control element; 303, third control element; 401, first temperature detection part; 402, first flow detection part; 403, second temperature detection part; 404, second flow detection part; 405, third temperature detection part; 406, fourth temperature detection part; 407, fourth flow detection part. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The specific structural and functional details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments described herein.

[0025] Figure 1 A connection diagram of an external circulation heat exchange device is provided for an embodiment of the present application.

[0026] like Figure 1 As shown, an external circulation heat exchange device of a sewage treatment system includes a first circulation channel 100, a heat exchange channel 200, two first control components 301 and two second control components 302, wherein:

[0027] The first circulation channel 100 has a first inlet 101 and a first outlet 102 for connecting to the sewage treatment system respectively. A driving unit 103 is provided on the first circulation channel 100. Under the action of the driving unit 103, sewage enters from the first inlet 101 and is discharged from the first outlet 102, and then enters the sewage treatment system again to achieve a circulation operation.

[0028] The heat exchange channel 200 is connected to the first circulation channel 100, and a heat exchange part 201 is provided on the heat exchange channel 200 to enable the sewage passing through the heat exchange channel 200 to undergo heat exchange. The heat exchange part 201 is provided with a second inlet 202 and a second outlet 203 for the heat source to enter and discharge. The heat exchange channel 200 is connected in parallel to the first circulation channel 100, and the sewage can selectively circulate through the first circulation channel 100 or the heat exchange channel 200. After the heat source is introduced into the heat exchange part 201, the sewage undergoes heat exchange with the heat source when passing through the heat exchange channel 200 to increase the temperature of the sewage.

[0029] The two first control components 301 are arranged on the first circulation channel 100 to allow the sewage to pass through the heat exchange channel 200, and the two second control components 302 are arranged on the heat exchange channel 200 to allow the sewage to pass through the first circulation channel 100. Through the cooperation of the first control component 301 and the second control component 302, the flow path of the sewage can be constrained to achieve precise constraint on the flow path of the sewage under different working conditions, thereby improving control convenience and reliability.

[0030] like Figure 1 As shown, in an optional embodiment, the working principle of the external circulation heat exchange device in the present application is: by being installed on an existing sewage treatment system, the external circulation heat exchange device includes: a first circulation channel 100 having a first inlet 101 and a first outlet 102 for connecting to the sewage treatment system respectively, and a driving part 103 is provided on the first circulation channel 100; a heat exchange channel 200 is provided on the first circulation channel 100, and a heat exchange part 201 is provided on the heat exchange channel 200 to allow the sewage passing through the heat exchange channel 200 to undergo heat exchange, and a second inlet 202 and a second outlet 203 for heat source entry and discharge are provided on the heat exchange part 201; two first control members 301 are provided on the first circulation channel 100, and the heat exchange part 201 is provided with a heat exchange part 202, and a heat exchange part 203 is provided on the heat exchange part 201; two first control members 301 are provided on the first circulation channel 100, and the heat exchange part 201 is provided with a heat exchange part 203. Two second control components 302 are provided on the hot channel 200 to allow the sewage to pass through the heat exchange channel 200 or the first circulation channel 100. In the actual operation process, the flow direction of the sewage is restricted by controlling the two first control components 301 and the two second control components 302. When the sewage temperature does not meet the treatment requirements, a heat source is introduced into the second inlet 202 of the heat exchange part 201, and the sewage passes through the heat exchange channel 200, so that the sewage exchanges heat with the heat source through the heat exchange part 201, so that the sewage reaches the temperature required for treatment, so that the restart heating speed of the sewage treatment system in a low temperature environment or after a long period of shutdown is accelerated, avoiding being restricted by the water intake due to insufficient operating temperature, and maintaining the reliable progress of the treatment operation.

[0031] like Figure 1As shown, in an optional embodiment, a first temperature detection unit 401 and a first flow detection unit 402 are respectively provided on the heat exchange channel 200 located on both sides of the heat exchange unit 201. The temperature and flow of the sewage in the heat exchange channel 200 are respectively detected by the first temperature detection unit 401 and the first flow detection unit 402, and the first temperature detection unit 401 and the first flow detection unit 402 are respectively located on both sides of the heat exchange unit 201. By comparing the temperature values ​​at different positions, the temperature value of the sewage before and after the heat exchange can be obtained, so as to control the heat source entering the heat exchange unit 201 and avoid the sewage failing to reach the required temperature.

[0032] It is worth noting that the first control component 301 and the second control component 302 can be controlled so that the first control component 301 and the second control component 302 can operate at set openings respectively, that is, part of the sewage can flow through the first circulation channel 100, and part of it can flow through the heat exchange channel 200, and after part of the sewage completes the heat exchange, it is collected in the first circulation channel 100, and finally the target stability is achieved, and when controlling the first control component 301 and the second control component 302, auxiliary adjustment can be performed in combination with the first flow detection unit 402.

[0033] like Figure 1 As shown, in an optional embodiment, a second temperature detection unit 403 and a second flow detection unit 404 are provided between the two first control members 301 .

[0034] In cooperation with the first flow detection unit 402 and the first temperature detection unit 401, the temperature and flow in the first circulation channel 100 and the heat exchange channel 200 are monitored respectively, so as to adjust the flow path of the sewage and control the first control component 301 and the second control component 302 respectively under different sewage temperatures, thereby improving the control accuracy and avoiding unnecessary heat exchange.

[0035] like Figure 1 As shown, in an optional embodiment, the first control component 301 and the second control component 302 respectively use control valves to control the on-off of the channel, and can also control the opening degree of the control valve by referring to the flow data to adjust the flow control.

[0036] like Figure 1 As shown, in an optional embodiment, the driving unit 103 uses a circulation pump to provide power for directional flow of sewage.

[0037] like Figure 1 As shown, in an optional embodiment, a third temperature detection unit 405 is provided at one end of the first circulation channel 100 close to the first outlet 102 to detect the temperature of the sewage that has completed the heat exchange, and then serve as a basis for judging the control of the heat source, so as to control the introduction temperature and flow rate of the heat source.

[0038] like Figure 1 As shown, in an optional embodiment, the heat exchange part 201 adopts a plate heat exchange device to achieve heat exchange by contacting the contact surface with the sewage.

[0039] like Figure 1 As shown, in an optional embodiment, two third control components 303 are provided on the heat exchange channel 200 to control the entry and discharge states of the heat source.

[0040] like Figure 1 As shown, in an optional embodiment, the heat exchange channel 200 is provided with a fourth temperature detection unit 406 and a fourth flow detection unit 407 to obtain the incoming temperature and flow of the heat source, which can more accurately control the temperature and flow of the heat source and improve the heat exchange efficiency and accuracy.

[0041] like Figure 1 As shown, in an optional embodiment, the two third control components 303 are arranged between the fourth temperature detection part 406 and the fourth flow detection part 407, so that the acquisition of the heat source parameters before the heat source enters the heat exchange part 201 or after passing through the heat exchange part 201 is more accurate and reliable, thereby improving the validity of the detection results.

[0042] It should be understood that the terms first, second, etc. are only used to distinguish descriptions and should not be understood as indicating or implying relative importance. Although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another unit. For example, the first unit may be referred to as the second unit, and similarly, the second unit may be referred to as the first unit without departing from the scope of the exemplary embodiments of the present utility model.

[0043] It should be understood that the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another relationship between associated objects, indicating that two relationships may exist. For example, A / and B can represent two situations: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0044] It should be understood that in the description of the present invention, the terms "upper", "vertical", "inside", "outside", etc. indicate orientations or positional relationships that are customarily placed when the disclosed product is used, or are orientations or positional relationships that are customarily understood by those skilled in the art. They 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 should not be understood as a limitation on the present invention.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" 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 direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the 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.

[0046] The terms used herein are only used to describe specific embodiments and are not intended to limit the exemplary embodiments of the utility model. As used herein, the singular forms "one", "an", and "the" are intended to include plural forms unless the context clearly indicates the opposite meaning. It should also be understood that the terms "include", "comprise", "include", and / or "comprising" when used herein specify the existence of the claimed features, integers, steps, operations, units, and / or components, and do not exclude the existence or increase of one or more other features, quantities, steps, operations, units, components, and / or their combinations.

[0047] Specific details are provided in the following description to facilitate a complete understanding of the exemplary embodiments. However, it should be understood by those of ordinary skill in the art that the exemplary embodiments may be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail to avoid making the exemplary embodiments unclear.

[0048] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

[0049] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field.

Claims

1. An external circulation heat exchange device for a sewage treatment system, characterized in that: The external circulation heat exchange device comprises: a first circulation channel, the first circulation channel having a first inlet and a first outlet for connecting to a sewage treatment system respectively, and a driving part is provided on the first circulation channel; a heat exchange channel, the heat exchange channel being connected to the first circulation channel, the heat exchange channel being provided with a heat exchange portion so as to exchange heat with the sewage passing through the heat exchange channel, the heat exchange portion being provided with a second inlet and a second outlet for heat source to enter and discharge; Two first control components and two second control components, the two first control components are arranged on the first circulation channel to allow the sewage to pass through the heat exchange channel, and the two second control components are arranged on the heat exchange channel to allow the sewage to pass through the first circulation channel.

2. The external circulation heat exchange device of the sewage treatment system according to claim 1, characterized in that: The heat exchange channels located on both sides of the heat exchange portion are respectively provided with a first temperature detection portion and a first flow detection portion.

3. The external circulation heat exchange device of the sewage treatment system according to claim 1, characterized in that: A second temperature detection unit and a second flow detection unit are provided between the two first control members.

4. The external circulation heat exchange device of the sewage treatment system according to claim 1, characterized in that: The first control component and the second control component are control valves respectively.

5. The external circulation heat exchange device of the sewage treatment system according to claim 1, characterized in that: The driving part adopts a circulation pump.

6. The external circulation heat exchange device of the sewage treatment system according to claim 1, characterized in that: A third temperature detection unit is disposed at one end of the first circulation channel close to the first outlet.

7. The external circulation heat exchange device of the sewage treatment system according to claim 1, characterized in that: The heat exchange part adopts a plate heat exchange device.

8. The external circulation heat exchange device of the sewage treatment system according to claim 1, characterized in that: Two third control components are arranged on the heat exchange channel.

9. The external circulation heat exchange device of the sewage treatment system according to claim 8, characterized in that: The heat exchange channel is provided with a fourth temperature detection part and a fourth flow detection part.

10. The external circulation heat exchange device of the sewage treatment system according to claim 9, characterized in that: The two third control members are arranged between the fourth temperature detection part and the fourth flow detection part.

Images