Cooling system and aeration device

Abstract

The utility model discloses a cooling system which is applied to an aeration device and comprises a cooling sleeve, a first water inlet pipe, a first water outlet pipe, a first water storage container and a second water storage container, the cooling sleeve comprises a cooling sleeve body and an annular plate; a cooling cavity is formed among the inner peripheral wall of the cooling sleeve body, the outer peripheral wall of the aeration air pipe and the annular plate; the cooling sleeve is provided with a sleeve water inlet and a sleeve water outlet, the first water inlet pipe is communicated with the cooling cavity through the sleeve water inlet, and the first water outlet pipe is communicated with the cooling cavity through the sleeve water outlet; the first water storage container is communicated with the sleeve water inlet, and the second water storage container is communicated with the sleeve water outlet. According to the scheme, the aeration air pipe is cooled in a non-circulating cooling mode through the cooling sleeve arranged on the peripheral wall of the aeration air pipe in a sleeving mode, the temperature of the cooled aeration air pipe is reduced, and the influence on the biochemical reaction of the leachate is reduced. The utility model further discloses an aeration device applying the cooling system.

Description

Technical Field

[0001] The utility model relates to the technical field of aeration devices, in particular to a cooling system and an aeration device. Background Art

[0002] Aeration device refers to the equipment that provides dissolved oxygen to the aeration tank during the wastewater activated sludge process. Aeration can be achieved by introducing compressed air into the leachate biochemical system through appropriate equipment. Aeration not only increases dissolved oxygen by contacting the liquid in the system with air, but also accelerates the transfer rate of oxygen in the air to the liquid due to the agitation of the liquid, thereby achieving the purpose of increasing dissolved oxygen.

[0003] Among them, during the use of the aeration device, due to various reasons, the temperature of the aeration pipe that transports compressed air is very likely to rise, which has a great impact on the normal operation of the aeration device and the leachate biochemical system, and can easily cause the leachate biochemical reaction to be unable to fully proceed under suitable conditions. Utility Model Content

[0004] In view of this, the utility model provides a cooling system applied to an aeration device, which cools the aeration pipe by a cooling sleeve arranged on the outer peripheral wall of the aeration pipe. The temperature of the aeration pipe is lowered after cooling to reduce the impact on the biochemical reaction of the leachate and reduce the operating cost.

[0005] The utility model also provides an aeration device comprising the cooling system.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cooling system, applied to an aeration device, comprises: a cooling sleeve, a first water inlet pipe, a first water outlet pipe, a first water storage container and a second water storage container;

[0008] The cooling jacket comprises: a cooling jacket body and annular plates respectively arranged at two ends of the cooling jacket body;

[0009] The cooling jacket body is sleeved on the outer peripheral wall of the aeration pipe of the aeration device, the inner edges of the annular plate are sealed with the outer peripheral wall of the aeration pipe, and the outer edges of the annular plate are sealed with the cooling jacket body, so that a cooling cavity is formed between the inner peripheral wall of the cooling jacket body, the outer peripheral wall of the aeration pipe and the annular plate;

[0010] The cooling jacket is provided with a jacket water inlet and a jacket water outlet which are staggered, the first water inlet pipe is connected to the cooling cavity through the jacket water inlet, and the first water outlet pipe is connected to the cooling cavity through the jacket water outlet;

[0011] The first water storage container and the second water storage container are arranged independently of each other. The first water storage container is connected to the casing water inlet through the first water inlet pipe, and the second water storage container is connected to the casing water outlet through the first water outlet pipe.

[0012] Preferably, there are multiple cooling jackets, and the multiple cooling jackets that are connected in sequence are all sleeved on the outer peripheral wall of the corresponding aeration pipe;

[0013] The first cooling jacket among the plurality of cooling jackets is provided with the jacket water inlet, and the last cooling jacket among the plurality of cooling jackets is provided with the jacket water outlet.

[0014] Preferably, it also includes: a communication pipeline;

[0015] There are two cooling jackets, which are connected via the connecting pipe. One of the two cooling jackets is provided with the jacket water inlet, and the other of the two cooling jackets is provided with the jacket water outlet.

[0016] Preferably, the second water storage container is a cooling tower.

[0017] Preferably, the sleeve water inlet and the sleeve water outlet are respectively arranged on the annular plates at the head and tail ends of the cooling sleeve body.

[0018] Preferably, it further comprises: a cooling water tank comprising a second water inlet pipe and a second water outlet pipe;

[0019] The second water inlet pipe is connected to a fan water inlet of the fan of the aeration device, and the second water outlet pipe is connected to a fan water outlet of the fan of the aeration device.

[0020] Preferably, it further comprises: a third water inlet pipe and a third water outlet pipe;

[0021] The third water inlet pipe and the second water inlet pipe are both connected to the water inlet of the fan, and the third water outlet pipe and the second water outlet pipe are both connected to the water outlet of the fan.

[0022] Preferably, it further comprises: a third water storage container and a fourth water storage container which are arranged independently of each other;

[0023] The third water storage container is connected to the fan water inlet through the third water inlet pipe, and the fourth water storage container passes through the fan water outlet through the third water outlet pipe;

[0024] The second water inlet pipe, the second water outlet pipe, the third water inlet pipe and the third water outlet pipe are all provided with valves.

[0025] Preferably, it further comprises: a first common pipe and a second common pipe;

[0026] The third water inlet pipe is connected to the fan water inlets of the fans of the plurality of aeration devices through the first common pipe.

[0027] The third water outlet pipe is connected to the fan water outlets of the fans of the plurality of aeration devices through the second common pipe.

[0028] It can be seen from the above technical scheme that the cooling system provided by the utility model is applied to the aeration device. The cooling sleeve is sleeved on the outer peripheral wall of the aeration pipe, and the aeration pipe is cooled by a non-circulating cooling method. After cooling, the temperature of the aeration pipe is reduced, reducing the impact on the biochemical reaction of the leachate.

[0029] In this solution, the bearing box is cooled by a non-circulating cooling method through the provision of a third water inlet pipe, a third water outlet pipe, a third water storage container and a fourth water storage container.

[0030] The utility model also provides an aeration device, which has corresponding beneficial effects due to the adoption of the above-mentioned cooling system. For details, please refer to the above description, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A first schematic diagram of the cooperation between the cooling system and the aeration pipe provided in the embodiment of the utility model;

[0033] Figure 2 A second schematic diagram of the cooperation between the cooling system and the aeration pipe provided in the embodiment of the utility model;

[0034] Figure 3 A first schematic diagram of the cooperation between the cooling system and the fan provided in the embodiment of the utility model;

[0035] Figure 4 A second schematic diagram of the cooperation between the cooling system and the fan provided in an embodiment of the utility model.

[0036] Wherein, 1 is a cooling jacket, 11 is a cooling jacket body, 12 is an annular plate, 13 is a cooling cavity, 14 is a jacket water inlet, and 15 is a jacket water outlet;

[0037] 2 is the first water inlet pipe; 3 is the first water outlet pipe;

[0038] 4 is an aeration pipe, 41 is a first aeration pipe, and 42 is a second aeration pipe;

[0039] 5 is a connecting pipe;

[0040] 6 is a cooling water tank, 61 is a second water inlet pipe, and 62 is a second water outlet pipe;

[0041] 7 is a fan; 8 is the third water inlet pipe; 9 is the third water outlet pipe; X is a valve, Y is the first common pipe, and Z is the second common pipe. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] The cooling system provided by the embodiment of the utility model is applied to an aeration device, such as Figure 1-Figure 2 As shown, it includes: a cooling jacket 1, a first water inlet pipe 2 and a first water outlet pipe 3, a first water storage container and a second water storage container, Figure 1-Figure 2 The arrow shown in the figure indicates the flow direction of cooling water;

[0044] The cooling jacket 1 comprises: a cooling jacket body 11 and annular plates 12 respectively arranged at both ends of the cooling jacket body 11;

[0045] The cooling jacket body 11 is sleeved on the outer peripheral wall of the aeration pipe 4 of the aeration device, the inner edges of the annular plate 12 are sealed with the outer peripheral wall of the aeration pipe 4, and the outer edges of the annular plate 12 are sealed with the cooling jacket body 11, so that a cooling cavity 13 is formed between the inner peripheral wall of the cooling jacket body 11, the outer peripheral wall of the aeration pipe 4 and the annular plate 12;

[0046] The cooling jacket is provided with a jacket water inlet 14 and a jacket water outlet 15 which are arranged staggered. The first water inlet pipe 2 is connected to the cooling cavity 13 through the jacket water inlet 14, and the first water outlet pipe 3 is connected to the cooling cavity 13 through the jacket water outlet 15.

[0047] The first water storage container and the second water storage container are arranged independently of each other. The first water storage container is connected to the casing water inlet 14 through the first water inlet pipe 2, and the second water storage container is connected to the casing water outlet 15 through the first water outlet pipe 3.

[0048] Among them, the basic principle of the system is: the cooling water of the cooling system flows out from the first water storage container through the first water inlet pipe 2 and enters the cooling chamber 13 from the sleeve water inlet 14, and then cools the aeration air pipe 4. After the cooling water cools the aeration air pipe 4, the cooling water flows from the sleeve water outlet 15 through the first water outlet pipe 3 into the second water storage container.

[0049] In the above technical solution, a cooling jacket 1 is sleeved on the outer peripheral wall of the aeration pipe 4, and the cooling jacket 1 is connected to the first water inlet pipe 2 and the first water outlet pipe 3. Cooling water enters the cooling chamber from the first water inlet pipe 2 and then flows out from the first water outlet pipe 3 to cool the aeration pipe 4. The temperature of the aeration pipe 4 cooled by the non-circulating cooling method is reduced, thereby reducing the impact on the biochemical reaction of the leachate.

[0050] Preferably, a non-circulating cooling method is performed by arranging the first water storage container and the second water storage container independently of each other, thereby avoiding the traditional circulating cooling method of using the same water storage container for circulating cooling, which results in poor cooling effect.

[0051] Further, such as Figure 1 As shown, there are multiple cooling jackets 1, and multiple cooling jackets 1 that are connected in sequence are all sleeved on the outer peripheral wall of the corresponding aeration pipe 4;

[0052] The first cooling jacket 1 among the plurality of cooling jackets 1 is provided with a jacket water inlet 14 , and the last cooling jacket 1 among the plurality of cooling jackets 1 is provided with a jacket water outlet 15 .

[0053] In the above technical solution, by setting up multiple cooling jackets 1, multiple aeration pipes 4 can be cooled at the same time to improve work efficiency; of course, in this solution, the cooling jacket 1 should also include a corresponding cooling jacket body 11 and an annular plate 12; multiple cooling jacket bodies 11 are sleeved on the outer peripheral wall of the corresponding aeration pipe 4; multiple corresponding annular plates 12 are used to seal the corresponding cooling jacket bodies 11 and the aeration pipe 4.

[0054] Further, such as Figure 1 and Figure 2 As shown, it also includes: a communication pipeline 5;

[0055] There are two cooling jackets 1, which are connected by a connecting pipe 5. The two cooling jackets 1 connected to each other are both sleeved on the outer peripheral wall of the corresponding aeration pipe 4; one of the two cooling jackets 1 is provided with a jacket water inlet 14, and the other cooling jacket 1 is provided with a jacket water outlet 15.

[0056] In the present technical solution, the cooling sleeves 1 are interconnected by providing the connecting pipe 5, which is beneficial for the non-circulating cooling of the aeration pipe 4, so that the temperature of the aeration pipe 4 is cooled quickly.

[0057] Specifically, it also includes: a first water storage container and a second water storage container which are arranged independently of each other;

[0058] The first water storage container is connected to the casing water inlet 14 through the first water inlet pipe 2 , and the second water storage container is connected to the casing water outlet 15 through the first water outlet pipe 3 .

[0059] Furthermore, the second water storage container is a cooling tower. This configuration saves cooling water and helps reduce costs.

[0060] Preferably, the sleeve water inlet 14 and the sleeve water outlet 15 are respectively arranged on the annular plates 12 at the head and tail ends of the cooling sleeve body 11. Such an arrangement is conducive to the flow of cooling water and rapid cooling.

[0061] In some schemes, such as Figure 3-Figure 4 As shown, it also includes: a cooling water tank 6 including a second water inlet pipe 61 and a second water outlet pipe 62. Of course, the second water inlet pipe 61 and the second water outlet pipe 62 here are relative to the fan water inlet and the fan water outlet. In other words, the second water inlet pipe 61 is equivalent to the water outlet end of the cooling water tank 6, and the second water outlet pipe 62 is equivalent to the water inlet end of the cooling water tank 6; it should be noted that Figure 3-Figure 4 The arrow shown in the figure indicates the flow direction of cooling water;

[0062] The second water inlet pipe 61 is connected to the fan water inlet of the fan 7 of the aeration device, and the second water outlet pipe 62 is connected to the fan water outlet of the fan 7 of the aeration device.

[0063] In the above technical solution, by providing the cooling water tank 6, the second water inlet pipe 61 and the second water outlet pipe 62 are used to cool the bearing box of the fan 7 of the aeration device.

[0064] Further, such as Figure 3 As shown, it also includes: a third water inlet pipe 8 and a third water outlet pipe 9;

[0065] The third water inlet pipe 8 and the second water inlet pipe 61 are both connected to the water inlet of the fan, and the third water outlet pipe 9 and the second water outlet pipe 62 are both connected to the water outlet of the fan.

[0066] In the above technical solution, the bearing box can be cooled quickly by adding a third water inlet pipe 8 and a third water outlet pipe 9 to cool the bearing box.

[0067] Furthermore, it also includes: a third water storage container and a fourth water storage container which are arranged independently of each other;

[0068] The third water storage container is connected to the water inlet of the fan through the third water inlet pipe 8, and the fourth water storage container passes through the water outlet of the fan through the third water outlet pipe 9;

[0069] The second water inlet pipe 61 , the second water outlet pipe 62 , the third water inlet pipe 8 and the third water outlet pipe 9 are all provided with valves X.

[0070] In the above scheme, the cooling water tank 6 is used as a backup cooling method. By closing the valve X on the second water inlet pipe 61 and the second water outlet pipe 62, the bearing box in the fan 7 is cooled separately by using the third water inlet pipe 8 and the third water outlet pipe 9. The third water storage container and the fourth water storage container are water storage containers arranged independently of each other. A non-circulating cooling method is adopted, which is conducive to the rapid cooling of the bearing box. If the third water inlet pipe 8 and the third water outlet pipe 9 are damaged, the valve X on the third water inlet pipe 8 and the third water outlet pipe 9 is closed, and the cooling water tank 6 is used for cooling. Of course, under certain circumstances, the water pressure of the water storage container (the third water storage container and the fourth water storage container) and the cooling water tank 6 are equal. In order to pursue a better cooling effect, the valve X is opened, and the bearing box can be cooled simultaneously by using two cooling methods.

[0071] In some embodiments, it further includes: a first common tube Y and a second common tube Z;

[0072] The third water inlet pipe 8 is connected to the fan water inlet of the fans 7 of the multiple aeration devices through the first common pipe Y.

[0073] The third water outlet pipe 9 is connected to the fan water outlets of the fans 7 of the multiple aeration devices through the second common pipe Z.

[0074] In the above technical solution, the first common pipe Y is provided with a plurality of water outlets so as to be connected with the water inlets of the fans 7 of the plurality of aeration devices; the second common pipe Z is also provided with a plurality of water outlets so as to be connected with the water outlets of the fans 7 of the plurality of aeration devices; in this way, the bearing boxes of the aeration devices are cooled synchronously, and the third water inlet pipe 8 is connected with the production water to perform direct cooling non-circulating cooling on the bearing boxes, and the water flowing out of the third water outlet pipe 9 flows to the clean water pipe of the leachate station, and finally flows to the cooling tower, thereby achieving a continuous and stable cooling effect on the bearing boxes of each aeration device.

[0075] The utility model also provides an aeration device, including: the cooling system as described above. Since the present solution adopts the cooling system as described above, it also has corresponding beneficial effects, which can be specifically referred to the above description and will not be repeated here.

[0076] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not contradictory. All feasible feature combinations are technical contents clearly recorded in this article. Any of the multiple sub-features contained in the same sentence can be applied independently, and does not have to be applied together with other sub-features.

[0077] The present invention is further described below in conjunction with specific embodiments:

[0078] A cooling system is used to solve the problem of high temperature of an aeration pipe 4 of an aeration device of a leachate biochemical system.

[0079] Through this cooling system, direct current cooling water can be used to cool the compressed air temperature in the aeration pipe 4 of the aeration device to a certain extent, reduce the impact of the high compressed air temperature on the leachate biochemical system, and cool the bearing box of the aeration device, thereby reducing the temperature of the bearing box of the aeration device and ensuring the normal operation of the leachate biochemical system and the aeration device.

[0080] Cooling the compressed air at the front end of the aeration device greatly reduces the negative impact of the heat brought by the compressed air on the leachate biochemical system, as well as the damage to the equipment caused by the increased temperature of the bearing box of the aeration device. It also reduces the utilization rate of equipment invested in lowering the temperature of the biochemical system, reduces operating costs, and simultaneously ensures the safe operation of the aeration device and maintains the stable operation of the leachate biochemical system.

[0081] A DN600 closed sleeve (i.e., cooling sleeve 1) is installed outside the two aeration pipes respectively, and the ends of the sleeves are connected with a connecting pipe 5. The front end of one cooling sleeve 1 is connected to the production water, and the other cooling sleeve 1 is connected to the external clean water pipe of the leachate station. The production water flows in series through the two sleeves outside the aeration air duct and then returns to the clean water pipe (i.e., the first water outlet pipe 3), and finally flows to the cooling tower, thereby realizing the cooling of the aeration air pipe 4 and achieving a continuous and stable cooling effect on the aeration air pipe 4.

[0082] In some embodiments, by applying the present cooling system, the first aeration pipe 41 is cooled from 96.8°C to 67.9°C, the second aeration pipe 42 is cooled from 100.1°C to 75.6°C, the bearing box of the first aeration fan can be cooled to 43.3°C, and the bearing box of the second aeration fan can be cooled to 48.0°C.

[0083] Advantages of the utility model:

[0084] 1. The modification of existing equipment is small. It only needs to install two cooling sleeves and matching inlet and outlet pipes, connecting pipes and valve interfaces. The method is simple and feasible, with convenient construction, small workload and low energy consumption.

[0085] 2. The cooling effect of the aeration pipe and bearing box of the aeration device is very significant. The original circulating water cooling system of the bearing box is used as an emergency standby, and the cooling effect can be monitored at any time.

[0086] 3. The return water generated by the direct cooling non-circulating cooling method is directly collected into the clean water pipe of the leachate station and finally enters the cooling tower of the power plant. Compared with the original operation mode, it saves the amount of cooling water treatment and is an energy-saving and consumption-reducing operation mode.

[0087] The key points of the conception of the utility model are:

[0088] 1. The cooling method for the aeration pipe of the aeration device is isolation cooling, which will not cause capacity changes to the cooling water or compressed air and biochemical system.

[0089] 2. Use direct cooling non-circulating cooling method to transfer the heat of the aeration system to the cooling tower of the power plant through the flow of cooling water.

[0090] 3. The renovation method of adding cooling sleeves and the direct cooling non-circulating cooling method of the bearing box are convenient and feasible, with significant effects and will not have any impact on existing equipment.

[0091] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0092] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cooling system, applied to an aeration device, characterized in that: include: A cooling jacket (1), a first water inlet pipe (2), a first water outlet pipe (3), a first water storage container and a second water storage container; The cooling jacket (1) comprises: a cooling jacket body (11) and annular plates (12) respectively arranged at two ends of the cooling jacket body (11); The cooling jacket body (11) is sleeved on the outer peripheral wall of the aeration pipe (4) of the aeration device, the inner edges of the annular plate (12) are sealedly connected to the outer peripheral wall of the aeration pipe (4), and the outer edges of the annular plate (12) are sealedly connected to the cooling jacket body (11), so that a cooling cavity (13) is formed between the inner peripheral wall of the cooling jacket body (11), the outer peripheral wall of the aeration pipe (4) and the annular plate (12); The cooling jacket is provided with a jacket water inlet (14) and a jacket water outlet (15) arranged in a staggered manner, the first water inlet pipe (2) is connected to the cooling chamber (13) through the jacket water inlet (14), and the first water outlet pipe (3) is connected to the cooling chamber (13) through the jacket water outlet (15); The first water storage container and the second water storage container are arranged independently of each other; the first water storage container is connected to the casing water inlet (14) via the first water inlet pipe (2); and the second water storage container is connected to the casing water outlet (15) via the first water outlet pipe (3).

2. The cooling system according to claim 1, characterized in that: The number of the cooling jackets (1) is plural, and the plurality of sequentially connected cooling jackets (1) are all sleeved on the outer peripheral wall of the corresponding aeration pipe (4); The first cooling jacket (1) among the plurality of cooling jackets (1) is provided with the jacket water inlet (14), and the last cooling jacket (1) among the plurality of cooling jackets (1) is provided with the jacket water outlet (15).

3. The cooling system according to claim 2, characterized in that: Also includes: A connecting pipe (5); There are two cooling jackets (1), the two cooling jackets (1) are connected via the connecting pipe (5), one of the two cooling jackets (1) is provided with the jacket water inlet (14), and the other of the two cooling jackets (1) is provided with the jacket water outlet (15).

4. The cooling system according to claim 1, characterized in that: The second water storage container is a cooling tower.

5. The cooling system according to claim 1, characterized in that: The casing water inlet (14) and the casing water outlet (15) are respectively arranged on the annular plate (12) at the head and tail ends of the cooling casing body (11).

6. The cooling system according to claim 1, characterized in that: Also includes: A cooling water tank (6) comprising a second water inlet pipe (61) and a second water outlet pipe (62); The second water inlet pipe (61) is connected to the fan water inlet of the fan (7) of the aeration device, and the second water outlet pipe (62) is connected to the fan water outlet of the fan (7) of the aeration device.

7. The cooling system according to claim 6, characterized in that: Also includes: A third water inlet pipe (8) and a third water outlet pipe (9); The third water inlet pipe (8) and the second water inlet pipe (61) are both connected to the water inlet of the fan, and the third water outlet pipe (9) and the second water outlet pipe (62) are both connected to the water outlet of the fan.

8. The cooling system according to claim 7, characterized in that: Also includes: A third water storage container and a fourth water storage container arranged independently of each other; The third water storage container is connected to the water inlet of the fan through the third water inlet pipe (8), and the fourth water storage container passes through the water outlet of the fan through the third water outlet pipe (9); The second water inlet pipe (61), the second water outlet pipe (62), the third water inlet pipe (8) and the third water outlet pipe (9) are all provided with valves (X).

9. The cooling system according to claim 7, characterized in that: Also includes: A first common pipe (Y) and a second common pipe (Z); The third water inlet pipe (8) is connected to the fan water inlets of the fans (7) of the plurality of aeration devices through the first common pipe (Y). The third water outlet pipe (9) is connected to the fan water outlets of the fans (7) of the plurality of aeration devices through the second common pipe (Z).

10. An aeration device, characterized in that: include: A cooling system as claimed in any one of claims 1 to 9.

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