Temperature control system device

Abstract

The utility model relates to the technical field of temperature control, in particular to a temperature control system device, which comprises a production wastewater pool, a heat exchanger and a denitrification reaction device. A heat exchange water port of the heat exchanger is connected with a cooling heat exchange water circulation module and a steam heat exchange water circulation module. The cooling heat exchange water circulation module and the steam heat exchange water circulation module are matched with each other, one module is selected to exchange heat with nitrogenous wastewater according to the specific condition of the environment temperature, the temperature control module can cool or heat the nitrogenous wastewater, and the system is suitable for temperature environments in various seasons, and has a wide application prospect. According to the present invention, the temperature is adjusted and controlled according to seasons, such that the strain of the denitrification treatment device can normally work through the automatic temperature adjusting system, the produced nitrogen-containing wastewater can be treated with the maximum efficiency, the addition amount of the strain and the carbon source can be effectively reduced, and the purposes of cost reducing and efficiency increasing can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of temperature control technology, and in particular to a temperature control system device. Background Technology

[0002] Wastewater denitrification is the process of removing nitrogen from wastewater to prevent eutrophication. Wastewater denitrification is of great significance for protecting the aquatic environment and preventing eutrophication. Through wastewater denitrification, the nitrogen concentration in wastewater can be effectively reduced, nitrogen pollution in water bodies can be reduced, thereby protecting the survival and reproduction of aquatic organisms and maintaining the balance and stability of the aquatic ecosystem.

[0003] During the operation of the denitrification device, the activity of bacteria is highly sensitive to temperature. Excessively high or low temperatures will inhibit the bacteria, preventing them from working effectively and causing the wastewater to fail to meet treatment standards. Denitrifying bacteria have the highest activity in the temperature range of 25℃-35℃. Therefore, when performing wastewater denitrification treatment, temperature control of the wastewater, keeping it between 25℃ and 35℃, can greatly improve the denitrification efficiency.

[0004] A denitrification device, denitrification control method, and denitrification controller are disclosed in Chinese patent document CN117383704A. The aeration unit of the denitrification device, denitrification control method, and denitrification controller includes an aerator and an aeration disc connected to each other. The aeration disc is installed in the reactor. The reflux unit includes a reflux pipe and a reflux pump. A reflux port and a water inlet are provided on the reactor. The reflux port is located above the aeration disc, and the water inlet is located at the bottom of the reactor. The reflux pump is connected to both the reflux port and the water inlet through the reflux pipe. The water inlet unit includes a water inlet tank, a water inlet pump, and a water inlet pipe. The water inlet pump is connected to both the water inlet and the water inlet tank through the water inlet pipe. The heating unit includes a heating belt wrapped around the outside of the reactor. However, this denitrification device, denitrification control method, and denitrification controller mainly uses the heating belt to heat the sewage. When the sewage temperature is too high and affects the activity of denitrifying bacteria, it is impossible to cool the sewage. The temperature control method is relatively simple.

[0005] Existing temperature control systems for wastewater denitrification generally use direct heating or condensers to heat or dehydrate wastewater. They can only raise or lower the temperature and cannot adjust the temperature according to the ambient temperature.

[0006] To address the shortcomings of the existing technologies, providing a novel temperature control system for wastewater denitrification is a worthwhile research topic. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a temperature control system device, which effectively solves the deficiencies of the prior art.

[0008] The purpose of this utility model is achieved through the following technical solution: a temperature control system device, including a production wastewater tank, a heat exchanger and a denitrification reaction device, wherein the nitrogen-containing wastewater generated by the production wastewater tank is transmitted into the reaction device after passing through the heat exchanger, and the heat exchanger's hot water port is connected to a cooling hot water circulation module and a steam hot water circulation module.

[0009] The cooling water exchange circulation module includes a cooling circulation water tank, a first electric regulating valve, a first shut-off valve, a third shut-off valve, and a first circulating water pump.

[0010] The third shut-off valve is located between the outlet port of the heat exchanger and the inlet port of the cooling circulating water tank. The first circulating water pump is located at the outlet port of the cooling circulating water tank. A first electric regulating valve and a first shut-off valve are sequentially arranged between the first circulating water pump and the inlet port of the heat exchanger.

[0011] By connecting the inlet and outlet ports of the heat exchanger to the cooling room hot water circulation module, the cooling circulation water tank provides cooling water to the heat exchanger, enabling the nitrogen-containing wastewater to be cooled to the optimal activity temperature of denitrifying bacteria (23℃-32℃) in summer.

[0012] The steam-heated water circulation module includes a steam condensate tank, a second electric regulating valve, a second shut-off valve, a fourth shut-off valve, and a second circulating water pump.

[0013] The fourth shut-off valve is located between the outlet port of the heat exchanger and the inlet port of the steam condensate pool. The second circulating water pump is located at the outlet port of the steam condensate pool. A second electric regulating valve and a second shut-off valve are sequentially installed between the second circulating water pump and the inlet port of the heat exchanger.

[0014] By connecting a steam-heated water exchanger circulation module to the inlet and outlet ports of the heat exchanger, a steam condensate tank provides high-temperature steam condensate to the heat exchanger, enabling the nitrogen-containing wastewater to be heated to the optimal activity temperature of denitrifying bacteria (23℃-32℃) in winter. This allows the cooling water exchanger circulation module and the steam-heated water exchanger circulation module to work together, selecting one module to exchange heat with the nitrogen-containing wastewater based on the specific ambient temperature. This allows the temperature control module to cool or heat the nitrogen-containing wastewater, making it suitable for various seasonal temperature environments.

[0015] The denitrification reaction device is equipped with a temperature sensor, which is electrically connected to the first electric regulating valve and the second electric regulating valve respectively. The temperature sensor transmits the temperature signal to the first electric regulating valve or the second electric regulating valve.

[0016] By installing a temperature sensor inside the denitrification reactor, the temperature of the nitrogen-containing wastewater is monitored in real time. The opening degree of the first or second electric regulating valve is controlled according to the real-time temperature of the nitrogen-containing wastewater. The inlet water temperature is set between 23℃ and 32℃. In summer, the first electric regulating valve opens at high temperature and stops at low temperature, while in winter, the second electric regulating valve stops at high temperature and opens at low temperature, thus achieving the purpose of controlling the inlet water temperature.

[0017] The steam condensate in the steam condensate tank is recycled and reused from the steam generated in the production workshop. The steam condensate tank is equipped with steam pipes.

[0018] By recycling and reusing the steam condensate generated in the production workshop, the condensate and heat energy can be fully recovered and utilized. The recycling and utilization of steam condensate can also reduce fuel energy consumption, thereby indirectly reducing emissions of waste gases such as carbon dioxide and sulfides, which is beneficial to environmental protection. Installing steam pipes in the steam condensate pool can supplement the heat of the steam condensate, regulate the water temperature of the steam condensate, and prevent the steam condensate temperature from dropping and affecting the heat exchange efficiency.

[0019] Positive and beneficial effects: 1. This temperature control system, by setting up a cooling water exchange circulation module and a steam water exchange circulation module on the heat exchanger, allows these two modules to work together. Depending on the specific ambient temperature, one module is selected to exchange heat with the nitrogen-containing wastewater. This enables the temperature control module to cool or heat the nitrogen-containing wastewater, making it suitable for various seasonal temperature environments. Through this automatic temperature regulation system, the bacteria in the denitrification treatment device can operate normally, maximizing the efficiency of wastewater treatment. Furthermore, it can effectively reduce the amount of bacteria and carbon source added, achieving the goal of cost reduction and efficiency improvement.

[0020] 2. This temperature control system device uses a temperature sensor installed inside the denitrification reaction unit to monitor the temperature of the nitrogen-containing wastewater in real time. Based on the real-time temperature of the nitrogen-containing wastewater, the opening degree of the first electric regulating valve B1 or the second electric regulating valve B2 is controlled. The inlet water set temperature is between 23℃ and 32℃. In summer, the first electric regulating valve B1 is opened at high temperature and stopped at low temperature. In winter, the second electric regulating valve B2 is stopped at high temperature and opened at low temperature, thus achieving the purpose of controlling the inlet water temperature.

[0021] 3. This temperature control system device can fully recover and utilize the condensate generated in the production workshop by recycling the condensate. The recycling of condensate can also reduce fuel consumption, thereby indirectly reducing emissions of waste gases such as carbon dioxide and sulfides, which is beneficial to environmental protection. The steam pipe installed in the condensate tank can supplement the heat of the condensate, regulate the water temperature of the condensate, and prevent the condensate temperature from dropping and affecting the heat exchange efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the system structure of this utility model.

[0023] In the diagram: 1-Production wastewater pool, 2-Heat exchanger, 3-Denitrification reaction device, 4-Cooling circulating water pool, 5-Steam condensate pool, A1-First shut-off valve, A2-Second shut-off valve, B1-First electric regulating valve, B2-Second electric regulating valve, C1-Third shut-off valve, C2-Fourth shut-off valve, D1-First circulating water pump, D2-Second circulating water pump. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] Example 1

[0026] like Figure 1 As shown, the temperature control system device includes a production wastewater tank, a heat exchanger, and a denitrification reaction device. The nitrogen-containing wastewater generated in the production wastewater tank is transferred into the reaction device after passing through the heat exchanger. The heat exchanger's hot water port is connected to a cooling hot water circulation module and a steam hot water circulation module.

[0027] A heat exchanger is installed at the front end of the wastewater entering the denitrification device. Cooling water is introduced in summer and steam condensate is introduced in winter. The temperature is then controlled by a temperature control switch to keep the temperature in the regulating tank within a suitable range, ensuring that the bacteria in the reaction tank can survive with maximum activity and achieve the best reaction effect.

[0028] like Figure 1 As shown, the cooling water exchange circulation module includes a cooling circulation water tank, a first electric regulating valve B1, a first shut-off valve A1, a third shut-off valve C1, and a first circulating water pump D1.

[0029] The third shut-off valve C1 is located between the outlet port of the heat exchanger and the inlet port of the cooling circulating water tank. The first circulating water pump D1 is located at the outlet port of the cooling circulating water tank. The first electric regulating valve B1 and the first shut-off valve A1 are sequentially installed between the first circulating water pump D1 and the inlet port of the heat exchanger. The cooling room hot water circulation module is connected to the inlet and outlet ports of the heat exchanger, and the cooling circulating water tank provides cooling water to the heat exchanger. When the temperature of the nitrogen-containing wastewater is higher than the optimal activity temperature of denitrifying bacteria (23℃-32℃) in summer, it is necessary to use the heat exchanger to cool down the nitrogen-containing wastewater. In this case, the steam hot water circulation module is closed, and the first shut-off valve A1, the third shut-off valve C1, and the first circulating water pump D1 of the cooling hot water circulation module are opened. The first electric regulating valve B1 is set to automatic mode, so that the low-temperature cooling water circulates between the heat exchanger and the cooling hot water circulation module, carrying away the heat of the nitrogen-containing wastewater entering the heat exchanger, so that the nitrogen-containing wastewater can be cooled down to the optimal activity temperature of denitrifying bacteria (23℃-32℃) in summer.

[0030] like Figure 1 As shown, the steam-heated water circulation module includes a steam condensate tank, a second electric regulating valve B2, a second shut-off valve A2, a fourth shut-off valve C2, and a second circulating water pump D2.

[0031] The fourth shut-off valve C2 is located between the outlet port of the heat exchanger and the inlet port of the steam condensate pool. The second circulating water pump D2 is located at the outlet port of the steam condensate pool. The second electric regulating valve B2 and the second shut-off valve A2 are sequentially installed between the second circulating water pump D2 and the inlet port of the heat exchanger. By connecting the steam heat exchanger circulation module to the inlet and outlet ports of the heat exchanger, the steam condensate pool provides high-temperature steam condensate to the heat exchanger. When the temperature of the nitrogen-containing wastewater is lower than the optimal activity temperature of denitrifying bacteria (23℃-32℃) in winter, it is necessary to use the heat exchanger to heat up the nitrogen-containing wastewater. In this case, the cooling water circulation module is closed, and the second shut-off valve A2, the fourth shut-off valve C2, and the second circulating water pump D2 of the steam heat exchanger circulation module are opened. The second electric regulating valve B2 is set to automatic mode, so that the low-temperature cooling water circulates between the heat exchanger and the cooling water circulation module, providing heat to the nitrogen-containing wastewater entering the heat exchanger, so that the nitrogen-containing wastewater can be heated to the optimal activity temperature of denitrifying bacteria (23℃-32℃) in winter.

[0032] The cooling hot water circulation module and the steam hot water circulation module work together, and one module is selected to exchange heat with the nitrogen-containing wastewater according to the specific ambient temperature. This allows the temperature control module to cool or heat the nitrogen-containing wastewater, making it suitable for various seasonal temperature environments. Through this automatic temperature regulation system, the bacteria in the denitrification treatment device can work normally, treat the production wastewater with maximum efficiency, and effectively reduce the amount of bacteria and carbon source added, thus achieving the goal of cost reduction and efficiency improvement.

[0033] Example 2

[0034] The denitrification reactor is equipped with a temperature sensor, which is electrically connected to the first electric regulating valve B1 and the second electric regulating valve B2. The temperature sensor transmits the temperature signal to the first electric regulating valve B1 or the second electric regulating valve B2. By installing a temperature sensor inside the denitrification reactor, the temperature of the nitrogen-containing wastewater is monitored in real time, and the opening degree of the first electric regulating valve B1 or the second electric regulating valve B2 is controlled according to the real-time temperature of the nitrogen-containing wastewater. The inlet water temperature is set between 23℃ and 32℃. In summer, the first electric regulating valve B1 is opened at high temperature and closed at low temperature, while in winter, the second electric regulating valve B2 is closed at high temperature and opened at low temperature, thus achieving the purpose of controlling the inlet water temperature.

[0035] Example 3

[0036] The steam condensate in the steam condensate tank is recycled and reused from the steam generated in the production workshop. The steam condensate tank is equipped with steam pipes. By recycling the steam condensate generated in the production workshop, the condensate and heat energy can be fully recovered and utilized. The recycling of steam condensate can also reduce fuel energy consumption, thereby indirectly reducing emissions of waste gases such as carbon dioxide and sulfides, which is beneficial to environmental protection. The steam pipes in the steam condensate tank can supplement the heat of the steam condensate, regulate the water temperature of the steam condensate, and prevent the steam condensate temperature from dropping too low and affecting the heat exchange efficiency.

[0037] The working principle of this utility model is as follows:

[0038] S1. When the temperature of nitrogen-containing wastewater is higher than the optimal activity temperature of denitrifying bacteria (23℃-32℃) in summer, it is necessary to use a heat exchanger to cool down the nitrogen-containing wastewater. In this case, the steam heat exchanger circulation module is closed, the first shut-off valve A1, the third shut-off valve C1 and the first circulating water pump D1 of the cooling heat exchanger circulation module are opened, and the first electric regulating valve B1 is set to automatic mode. This allows the low-temperature cooling water to circulate between the heat exchanger and the cooling heat exchanger circulation module, carrying away the heat of the nitrogen-containing wastewater entering the heat exchanger, so that the nitrogen-containing wastewater can be cooled down to the optimal activity temperature of denitrifying bacteria (23℃-32℃) in summer.

[0039] S2. When the temperature of nitrogen-containing wastewater is lower than the optimal activity temperature of denitrifying bacteria (23℃-32℃) in winter, and it is necessary to use a heat exchanger to heat the nitrogen-containing wastewater, the cooling water exchange circulation module is closed, the second shut-off valve A2, the fourth shut-off valve C2 and the second circulating water pump D2 of the steam water exchange circulation module are opened, and the second electric regulating valve B2 is set to automatic mode, so that the low-temperature cooling water circulates between the heat exchanger and the cooling water exchange circulation module, providing heat to the nitrogen-containing wastewater entering the heat exchanger, so that the nitrogen-containing wastewater can be heated to the optimal activity temperature of denitrifying bacteria (23℃-32℃) in winter.

[0040] S3. The opening degree of the first electric regulating valve B1 or the second electric regulating valve B2 is controlled according to the real-time temperature of the nitrogen-containing wastewater. The inlet water setting temperature is between 23℃ and 32℃. In summer, the first electric regulating valve B1 is opened at high temperature and stopped at low temperature. In winter, the second electric regulating valve B2 is stopped at high temperature and opened at low temperature, so as to achieve the purpose of controlling the inlet water temperature.

Claims

1. A temperature control system device, comprising a production wastewater tank (1), a heat exchanger (2), and a denitrification reaction device (3), wherein nitrogen-containing wastewater generated from the production wastewater tank (1) is transferred to the reaction device after passing through the heat exchanger (2), characterized in that: The heat exchanger (2) is connected to a cooling hot water circulation module and a steam hot water circulation module at its hot water exchange port.

2. The temperature control system device according to claim 1, characterized in that: The cooling water exchange circulation module includes a cooling circulation water tank (4), a first electric regulating valve (B1), a first shut-off valve (A1), a third shut-off valve (C1), and a first circulating water pump (D1); The third shut-off valve (C1) is located between the outlet port of the heat exchanger (2) and the inlet port of the cooling circulating water tank (4). The first circulating water pump (D1) is located at the outlet port of the cooling circulating water tank (4). The first electric regulating valve (B1) and the first shut-off valve (A1) are sequentially arranged between the first circulating water pump (D1) and the inlet port of the heat exchanger (2).

3. The temperature control system device according to claim 1, characterized in that: The steam heat exchanger circulation module includes a steam condensate tank (5), a second electric regulating valve (B2), a second shut-off valve (A2), a fourth shut-off valve (C2), and a second circulating water pump (D2). The fourth shut-off valve (C2) is located between the outlet port of the heat exchanger (2) and the inlet port of the steam condensate pool (5). The second circulating water pump (D2) is located at the outlet port of the steam condensate pool (5). The second electric regulating valve (B2) and the second shut-off valve (A2) are sequentially arranged between the second circulating water pump (D2) and the inlet port of the heat exchanger (2).

4. The temperature control system device according to any one of claims 1-3, characterized in that: The denitrification reaction device (3) is equipped with a temperature sensor, which is electrically connected to the first electric regulating valve (B1) and the second electric regulating valve (B2) respectively. The temperature sensor transmits the temperature signal to the first electric regulating valve (B1) or the second electric regulating valve (B2).

5. The temperature control system device according to claim 3, characterized in that: The steam condensate in the steam condensate tank (5) is the steam condensate generated by the production workshop and is recycled and reused. The steam condensate tank (5) is equipped with steam pipes.

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