Cooling device for ammonia distillation wastewater

Abstract

The utility model discloses an ammonia distillation waste water cooling device, and relates to the technical field of ammonia distillation waste water cooling, in particular to an ammonia distillation waste water cooling device which comprises a cooling box, a high-temperature waste water inlet pipe and a high-temperature waste water outlet pipe are installed on the two sides of the cooling box respectively, and a partition plate is installed in the middle of an inner cavity of the cooling box. A partition plate is arranged in the cooling box and divides an inner cavity of the cooling box into a first heat exchange chamber and a second heat exchange chamber, and a first heat exchange coil and a second heat exchange coil which are communicated with each other are installed in the first heat exchange chamber and the second heat exchange chamber respectively. And one end of the first heat exchange coil pipe and one end of the second heat exchange coil pipe extend out of the cooling box and are jointly connected with a circulating cooling mechanism. According to the ammonia distillation waste water cooling device, the first heat exchange coil pipe and the second heat exchange coil pipe penetrate through the interior of the cooling box, waste water in the cooling box can be cooled through cooling water flowing through the first heat exchange coil pipe and the second heat exchange coil pipe, and the waste water cooling efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling ammonia evaporation wastewater, in particular to a device for cooling and lowering the temperature of ammonia evaporation wastewater. Background Art

[0002] Common methods for treating high-ammonia nitrogen wastewater include ammonia evaporation and ammonia stripping. The ammonia evaporation method mainly uses the principle of saturated vapor pressure to release ammonia nitrogen in the wastewater, but this will cause the wastewater temperature to rise. The biological bacteria in the biochemical pool have the best treatment effect at 16-30°C. When the water temperature exceeds 43°C, the biological bacteria begin to gradually die. The temperature of the ammonia evaporation wastewater is high when it enters the biochemical pool, which affects the activity of the biological bacteria in the subsequent biochemical pool. The usual cooling method is to wait for the water temperature in the pool to cool naturally or directly inject a large amount of fire-fighting cold water into the pool. The former is time-consuming and inefficient, and the latter has a high cost investment and large water temperature fluctuations, which makes the amount of biological bacteria in the pool unstable and more biological bacteria die, ultimately reducing the efficiency of wastewater biochemical treatment and the risk of exceeding the discharge standard. For this reason, we proposed a cooling device for ammonia evaporation wastewater. Utility Model Content

[0003] The utility model provides a device for cooling and lowering the temperature of ammonia vapor wastewater, which solves the problems raised by the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for cooling and lowering ammonia vapor wastewater, comprising a cooling box, a high-temperature wastewater inlet pipe and a high-temperature wastewater outlet pipe are respectively installed on both sides of the cooling box, a partition is installed in the middle of the inner cavity of the cooling box, the partition divides the inner cavity of the cooling box into a first heat exchange chamber and a second heat exchange chamber, the first heat exchange chamber and the second heat exchange chamber are respectively installed with a first heat exchange coil and a second heat exchange coil connected to each other, one end of the first heat exchange coil and the second heat exchange coil extend out of the interior of the cooling box and are jointly connected to a circulating cooling mechanism, the circulating cooling mechanism comprises a shallow cooling water tank and a deep cooling water tank pre-buried under the ground, the shallow cooling water tank and the deep cooling water tank are respectively located in different depths of soil layers.

[0005] Optionally, the circulating cooling mechanism also includes a heat exchange coil inlet pipe, a heat exchange coil outlet pipe, a cooling water supply pipe and a cooling water return pipe. The ends of the first heat exchange coil and the second heat exchange coil extending out of the cooling box are respectively connected to the heat exchange coil inlet pipe and the heat exchange coil outlet pipe, and one end of the heat exchange coil inlet pipe and the heat exchange coil outlet pipe are respectively connected to the cooling water supply pipe and the cooling water return pipe.

[0006] Optionally, the cooling water supply pipe and the cooling water return pipe extend into the soil and are connected to the shallow cooling water tank and the deep cooling water tank, so that the cooling water supply pipe and the cooling water return pipe can be separately connected to the shallow cooling water tank and the deep cooling water tank.

[0007] Optionally, the water inlet pipe of the heat exchange coil is connected to the shallow cooling water tank and the deep cooling water tank respectively through the cooling water supply pipe, and the water outlet pipe of the heat exchange coil is connected to the shallow cooling water tank and the deep cooling water tank respectively through the cooling water return pipe, and solenoid valves are respectively provided on the connection parts of the cooling water supply pipe and the cooling water return pipe with the shallow cooling water tank and the deep cooling water tank, and the solenoid valves include a first solenoid valve, a second solenoid valve, a third solenoid valve, and a fourth solenoid valve.

[0008] Optionally, a circulating water pump is provided on the cooling water supply pipe, a first temperature sensor is provided in the shallow cooling water tank, a second temperature sensor is provided in the deep cooling water tank, and the first temperature sensor, the second temperature sensor and the circulating water pump of the solenoid valve are commonly connected to a master control.

[0009] Optionally, the shallow cooling water tank and the deep cooling water tank are both closed water tanks, the top surface of the shallow cooling water tank is more than meters from the ground, and the top surface of the deep cooling water tank is more than meters from the ground.

[0010] The utility model has the following beneficial effects:

[0011] 1. The ammonia vapor wastewater cooling and cooling device passes through the interior of the cooling box through the first heat exchange coil and the second heat exchange coil. The cooling water flowing through the first heat exchange coil and the second heat exchange coil can cool the wastewater in the cooling box, effectively improving the efficiency of wastewater cooling and cooling, and can continuously cool the interior, thereby ensuring its temperature is relatively constant, thereby ensuring the efficiency of wastewater biochemical treatment.

[0012] 2. The ammonia wastewater cooling and temperature reduction device uses shallow cooling water tanks and deep cooling water tanks pre-buried at different depths. When the external temperature difference is large, it can control the temperature of the cooling water by exchanging the water supply of the shallow cooling water tank and the deep cooling water tank, thereby ensuring that the cooling water can maintain a relatively low temperature, thereby ensuring its cooling and temperature reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model.

[0014] In the figure: 1. Cooling box; 1.1. Partition; 1.2. First heat exchange chamber; 1.3. Second heat exchange chamber; 2. Heat exchange coil inlet pipe; 3. Heat exchange coil outlet pipe; 4. First heat exchange coil; 5. Second heat exchange coil; 6. Cooling water supply pipe; 7. Cooling water return pipe; 8. High-temperature wastewater inlet pipe; 9. High-temperature wastewater outlet pipe; 10. Circulating water pump; 11. Shallow cooling water tank; 11.1. First temperature sensor; 12. Deep cooling water tank; 12.1. Second temperature sensor; 13. First solenoid valve; 14. Second solenoid valve; 15. Third solenoid valve; 16. Fourth solenoid valve. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1 , a device for cooling and lowering the temperature of ammonia wastewater, including a cooling box 1, a high-temperature wastewater inlet pipe 8 and a high-temperature wastewater outlet pipe 9 are respectively installed on both sides of the cooling box 1, and wastewater can be discharged in and out through the high-temperature wastewater inlet pipe 8 and the high-temperature wastewater outlet pipe 9. It is a prior art and will not be described in detail here. A partition 1.1 is installed in the middle of the inner cavity of the cooling box 1, and the partition 1.1 divides the inner cavity of the cooling box 1 into a first heat exchange chamber 1.2 and a second heat exchange chamber 1.3. The first heat exchange chamber 1.2 and the second heat exchange chamber 1.3 are respectively installed with a first heat exchange coil 4 and a second heat exchange coil 5 connected to each other, through the first heat exchange coil 4 and the second heat exchange coil 5. Cooling can continuously cool the cooling water in the cooling box 1, thereby reducing the temperature difference. One end of the first heat exchange coil 4 and the second heat exchange coil 5 extend out of the interior of the cooling box 1 and are commonly connected to a circulating cooling mechanism. The circulating cooling mechanism includes a shallow cooling water tank 11 and a deep cooling water tank 12 pre-buried under the ground. The underground temperature is used to cool the ammonia wastewater to achieve the effect of reducing operating costs. The shallow cooling water tank 11 and the deep cooling water tank 12 are respectively located in different depths of soil layers. Through the shallow cooling water tanks 11 and the deep cooling water tanks 12 at different depths, and switching between them, the temperature of the cooling water is guaranteed.

[0017] The circulating cooling mechanism also includes a heat exchange coil inlet pipe 2, a heat exchange coil outlet pipe 3, a cooling water supply pipe 6 and a cooling water return pipe 7. The first heat exchange coil 4 and the second heat exchange coil 5 are connected to the heat exchange coil inlet pipe 2 and the heat exchange coil outlet pipe 3 at one end extending out of the cooling box 1 respectively. The cooling water is input into the first heat exchange coil 4 through the heat exchange coil inlet pipe 2, and flows out through the second heat exchange coil 5, and then refluxes through the heat exchange coil outlet pipe 3. One end of the heat exchange coil inlet pipe 2 and the heat exchange coil outlet pipe 3 are connected to the cooling water supply pipe 6 and the cooling water return pipe 7 respectively. The cooling water can flow into the heat exchange coil inlet pipe 2 through the cooling water supply pipe 6, and the cooling water in the heat exchange coil outlet pipe 3 can reflux through the cooling water return pipe 7.

[0018] The cooling water supply pipe 6 and the cooling water return pipe 7 extend into the soil and are connected to the shallow cooling water tank 11 and the deep cooling water tank 12, so that the cooling water supply pipe 6 and the cooling water return pipe 7 can be separately connected to the shallow cooling water tank 11 and the deep cooling water tank 12.

[0019] The heat exchange coil water inlet pipe 2 is connected to the shallow cooling water tank 11 and the deep cooling water tank 12 respectively through the cooling water supply pipe 6, and the heat exchange coil water outlet pipe 3 is connected to the shallow cooling water tank 11 and the deep cooling water tank 12 respectively through the cooling water return pipe 7, and solenoid valves are respectively provided on the connection parts of the cooling water supply pipe 6 and the cooling water return pipe 7 with the shallow cooling water tank 11 and the deep cooling water tank 12. The solenoid valves can be used to control the first solenoid valve 13 and the second solenoid valve 14 or the third solenoid valve 15 and the fourth solenoid valve 16 to open together, thereby allowing the cooling water in the shallow cooling water tank 11 or the deep cooling water tank 12 to circulate.

[0020] A circulating water pump 10 is provided on the cooling water supply pipe 6, a first temperature sensor 11.1 is provided in the shallow cooling water tank 11, and a second temperature sensor 12.1 is provided in the deep cooling water tank 12, and the solenoid valve, the first temperature sensor 11.1, the second temperature sensor 12.1 and the circulating water pump 10 are commonly connected to a master control. Through the signal transmission of the first temperature sensor 11.1 and the second temperature sensor 12.1, the master control controls the first solenoid valve 13 and the second solenoid valve 14 or the third solenoid valve 15 and the fourth solenoid valve 16 to be opened together, thereby achieving the effect of switching the shallow cooling water tank 11 and the deep cooling water tank 12 to ensure that the cooling water can maintain a relatively low temperature.

[0021] The shallow cooling water tank 11 and the deep cooling water tank 12 are both closed water tanks. The distance between the top surface of the shallow cooling water tank 11 and the ground is more than 5 meters, and the distance between the top surface of the deep cooling water tank 12 and the ground is more than 10 meters, so as to achieve the temperature of the cooling water in the shallow cooling water tank 11 and the deep cooling water tank 12 will not be greatly affected.

[0022] In summary, when the ammonia wastewater cooling and cooling device is used, the temperature in the shallow cooling water tank 11 and the deep cooling water tank 12 is monitored in real time under the monitoring of the first temperature sensor 11.1 and the second temperature sensor 12.1. Through the master control, the first solenoid valve 13 and the second solenoid valve 14 or the third solenoid valve 15 and the fourth solenoid valve 16 are controlled to open together. When the weather is cold, such as in winter, the water temperature in the shallow cooling water tank 11 is low, and the shallow cooling water tank 11 can be directly used for cooling; when the weather is hot, such as in summer, the water temperature in the shallow cooling water tank 11 is low. The water temperature is relatively high, and the deep cooling water tank 12 with lower water temperature can be used for cooling. When the deep cooling water tank 12 is needed to provide circulating water, the circulating water pump 10 is started. The circulating water pump 10 transports the cold water in the deep cooling water tank 12 through the cooling water supply pipe 6 to the first heat exchange coil 4 and the second heat exchange coil 5 located in the cooling box 1, so as to cool the wastewater in the cooling box 1. After the temperature in the cooling box 1 drops to the required temperature, the circulating water pump 10 is turned off. During this period, the return water flowing out of the cooling box 1 flows back to the deep cooling water tank 12 through the cooling water return pipe 7, and is cooled by the underground temperature.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0024] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for cooling and lowering the temperature of ammonia wastewater, comprising a cooling box (1), a high-temperature wastewater inlet pipe (8) and a high-temperature wastewater outlet pipe (9) being installed on both sides of the cooling box (1), characterized in that: A partition (1.1) is installed in the middle of the inner cavity of the cooling box (1), and the partition (1.1) divides the inner cavity of the cooling box (1) into a first heat exchange chamber (1.2) and a second heat exchange chamber (1.3). The first heat exchange chamber (1.2) and the second heat exchange chamber (1.3) are respectively installed with a first heat exchange coil (4) and a second heat exchange coil (5) that are connected to each other. One end of the first heat exchange coil (4) and the second heat exchange coil (5) extends out of the interior of the cooling box (1) and is commonly connected to a circulating cooling mechanism. The circulating cooling mechanism includes a shallow cooling water tank (11) and a deep cooling water tank (12) pre-buried in the ground. The shallow cooling water tank (11) and the deep cooling water tank (12) are respectively located in soil layers at different depths.

2. The cooling and temperature reduction device for ammonia distillation wastewater according to claim 1, characterized in that: The circulating cooling mechanism further comprises a heat exchange coil inlet pipe (2), a heat exchange coil outlet pipe (3), a cooling water supply pipe (6) and a cooling water return pipe (7); one end of the first heat exchange coil (4) and the second heat exchange coil (5) extending out of the cooling box (1) are respectively connected to the heat exchange coil inlet pipe (2) and the heat exchange coil outlet pipe (3); one end of the heat exchange coil inlet pipe (2) and the heat exchange coil outlet pipe (3) are respectively connected to the cooling water supply pipe (6) and the cooling water return pipe (7).

3. The cooling and temperature reduction device for ammonia distillation wastewater according to claim 2, characterized in that: The cooling water supply pipe (6) and the cooling water return pipe (7) extend into the soil and are connected to the shallow cooling water tank (11) and the deep cooling water tank (12), so that the cooling water supply pipe (6) and the cooling water return pipe (7) can be independently connected to the shallow cooling water tank (11) and the deep cooling water tank (12).

4. The cooling and temperature reduction device for ammonia distillation wastewater according to claim 3, characterized in that: The heat exchange coil water inlet pipe (2) is respectively connected to the shallow cooling water tank (11) and the deep cooling water tank (12) through the cooling water supply pipe (6); the heat exchange coil water outlet pipe (3) is respectively connected to the shallow cooling water tank (11) and the deep cooling water tank (12) through the cooling water return pipe (7); and electromagnetic valves are respectively provided on the connection parts between the cooling water supply pipe (6) and the cooling water return pipe (7) and the shallow cooling water tank (11) and the deep cooling water tank (12), and the electromagnetic valves include a first electromagnetic valve (13), a second electromagnetic valve (14), a third electromagnetic valve (15), and a fourth electromagnetic valve (16).

5. The cooling and temperature reduction device for ammonia distillation wastewater according to claim 4, characterized in that: A circulating water pump (10) is provided on the cooling water supply pipe (6), a first temperature sensor (11.1) is provided in the shallow cooling water tank (11), a second temperature sensor (12.1) is provided in the deep cooling water tank (12), and the solenoid valve, the first temperature sensor (11.1), the second temperature sensor (12.1) and the circulating water pump (10) are connected to a master control.

6. The cooling and temperature reduction device for ammonia distillation wastewater according to claim 1, characterized in that: The shallow cooling water tank (11) and the deep cooling water tank (12) are both closed water tanks. The distance between the top surface of the shallow cooling water tank (11) and the ground is more than 5 meters, and the distance between the top surface of the deep cooling water tank (12) and the ground is more than 10 meters.

Images