Phosphorus reaction heating device based on steam condensate recycling

Abstract

The utility model discloses a four methylol sulfuric acid phosphorus reaction heating device based on steam condensate water recycling, including reation kettle, hot water tank, hot water circulating pump and steam humidification device, the outer wall of reation kettle is equipped with heating jacket, the steam condensate water pipe of evaporation device is connected to hot water tank top, and installs liquid level sensor in the tank, the water outlet of hot water tank is connected to the inlet of hot water circulating pump, and the outlet is connected first branch pipe and second branch pipe, and first branch pipe is connected hot water inlet of heating jacket and is equipped with hot water inlet valve on the pipeline, second branch pipe is connected the backflow port of hot water tank and is equipped with hot water circulating valve on the pipeline, and the water outlet of hot water tank is connected to the water inlet of steam humidification device through the pipeline of taking out material pump. The utility model discloses steam condensate water produced by evaporation device is collected alone, and is used for reation kettle heating and steam humidification device water replenishment, saves the energy, reduces the sewage quantity, reduces production cost, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of chemical product manufacturing, and in particular to a tetrahydroxymethylphosphoric acid reaction heating device based on the reuse of steam condensate. Background Technology

[0002] The steam condensate produced by the evaporation device has a temperature of about 90-100℃ and high thermal energy.

[0003] The steam condensate from the existing tetrahydroxymethylphosphonic acid evaporation unit is mixed with low-temperature process wastewater and then treated as wastewater. This results in the waste of high-temperature heat energy from the steam condensate and an increase in steam consumption. On the other hand, it also leads to an increase in wastewater volume and higher treatment costs. Utility Model Content

[0004] This invention provides a tetrahydroxymethylphosphonic acid reaction heating device based on steam condensate recycling, which can effectively recover and utilize the condensate wastewater generated by the tetrahydroxymethylphosphonic acid evaporator, improve water resource utilization, and solve the defects of existing technologies such as resource waste, large wastewater treatment volume, and high treatment cost.

[0005] To solve the above-mentioned technical problems, this utility model provides a tetrahydroxymethylphosphoric acid reaction heating device based on steam condensate recycling, including a reaction vessel, a hot water tank, a hot water circulation pump and a steam humidification device; The outer wall of the reactor is fitted with a heating jacket; The top of the hot water tank is connected to the steam condensate pipe of the evaporation device; The inlet of the hot water circulation pump is connected to the outlet of the hot water tank, and its outlet is connected to the first branch pipe and the second branch pipe. The first branch pipe is connected to the hot water inlet of the heating jacket and is equipped with a hot water inlet valve. The second branch pipe is connected to the return port of the hot water tank and is equipped with a hot water circulation valve. The water inlet of the steam humidification device is connected to the water outlet of the hot water tank via a pipe with a discharge pump.

[0006] In a preferred embodiment of this utility model, a submersible distributor is installed in the hot water tank, and one end of the steam condensate pipe extending into the hot water tank is connected to the submersible distributor.

[0007] In a preferred embodiment of this utility model, the submersible distributor is a porous coil structure, installed below the liquid surface of the hot water tank.

[0008] In a preferred embodiment of this utility model, the diameter of the holes in the submersible distributor is 5-10 mm, and the hole distribution density is 3-5 holes / 10 cm².

[0009] In a preferred embodiment of this utility model, a precision filter is provided on the pipeline between the discharge pump and the outlet of the hot water tank.

[0010] In a preferred embodiment of this utility model, a first temperature sensor is installed inside the reaction vessel, and a level gauge and a second temperature sensor are installed inside the hot water tank.

[0011] In a preferred embodiment of the present invention, the device further includes a program controller, which is signal-connected to the first temperature sensor, the second temperature sensor, and the liquid level sensor.

[0012] In a preferred embodiment of this utility model, the first temperature sensor is connected to the hot water inlet valve and the hot water circulation valve through the program controller.

[0013] In a preferred embodiment of this utility model, the liquid level sensor is connected to the discharge pump through the program controller for linkage control.

[0014] In a preferred embodiment of this utility model, the hot water tank is provided with a steam replenishment pipeline, and the second temperature sensor is connected to the on / off valve of the steam replenishment pipeline through the program controller.

[0015] The beneficial effects of this utility model are as follows: This utility model is a tetrahydroxymethylphosphonic acid reaction heating device based on the reuse of steam condensate. Through the design of hot water tank and hot water circulation pump, the steam condensate generated by the evaporation device is collected separately and used for heating the reaction vessel and replenishing the steam humidification device. On the one hand, it saves heat energy and water resources, and on the other hand, it reduces the amount of wastewater and lowers the production cost. It is highly practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the tetrahydroxymethylphosphorus sulfate reaction heating device based on steam condensate recycling of this utility model; The components in the attached diagram are labeled as follows: 10. Reactor; 11. Heating jacket; 12. First temperature sensor; 13. Reactor circulation pump; 20. Hot water tank; 21. Liquid level sensor; 22. Second temperature sensor; 23. Submersible distributor; 24. Steam reheating pipeline; 30. Hot water circulation pump; 31. First branch pipe; 32. Second branch pipe; 33. Hot water inlet valve; 34. Hot water circulation valve; 40. Steam humidification device; 50. Discharge pump; 60. Steam condensate pipe; 70. Precision filter. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0018] Example 1 like Figure 1 As shown, this utility model discloses a tetrahydroxymethylphosphoric acid reaction heating device based on steam condensate recycling, including a reaction vessel 10, a hot water tank 20, a hot water circulation pump 30, a steam humidification device 40, and a program controller.

[0019] The reactor 10 is equipped with a heating jacket 11 on its outer wall, a first temperature sensor 12 is installed inside the reactor 10, and a circulation pipeline is also provided outside the reactor 10. The circulation pipeline connects the discharge port and return port of the reactor 10 and is equipped with a reactor circulation pump 13.

[0020] The hot water tank 20 has an insulation plate on its outer wall, and its top is connected to the steam condensate pipe 60 of the evaporation device. A liquid level sensor 21, a second temperature sensor 22, and a submersible distributor 23 are installed inside the tank. One end of the steam condensate pipe 60 extends into the hot water tank 20 and is connected to the submersible distributor 23. The hot water tank 20 is used to collect the steam condensate generated by the evaporation device separately for later use.

[0021] Specifically, the submersible distributor 23 is a porous coil structure, installed 200-300mm below the liquid surface of the hot water tank 20. The diameter of the holes on the submersible distributor 23 is 5-10mm, and the hole density is 3-5 holes / 10cm². The design of the submersible distributor 23 ensures that the steam condensate is evenly distributed in the hot water tank, improving the uniformity of the water temperature distribution within the tank. The hot water tank 20 is also connected to a steam replenishment pipe 24.

[0022] The hot water circulation pump 30 is located outside the reactor 10 and the hot water tank 20. Specifically, the inlet of the hot water circulation pump 30 is connected to the outlet of the hot water tank 20 via a pipe, and the outlet of the hot water circulation pump 30 is connected to a first branch pipe 31 and a second branch pipe 32. The first branch pipe 31 is connected to the hot water inlet of the heating jacket 11 and is equipped with a hot water inlet valve 33; the second branch pipe 32 is connected to the return outlet of the hot water tank 20 and is equipped with a hot water circulation valve 34. By controlling the opening of the hot water inlet valve 33 and the hot water circulation valve 34, the amount of hot water entering the heating jacket 11 is regulated, thereby regulating the temperature inside the reactor 10 and ensuring a stable reaction.

[0023] The water inlet of the steam humidification device 40 is connected to the water outlet of the hot water tank 20 through a pipe with a discharge pump 50 and a precision filter 70, so that the water in the hot water tank 20 can be reused.

[0024] Furthermore, the first temperature sensor 12 is signal-connected to the program controller, and is linked to the hot water inlet valve 33 and the hot water circulation valve 34 through the program controller. When the program controller receives a temperature value detected by the first temperature sensor 12 that exceeds the reaction temperature range of tetramethylolsulfate, it increases the opening of the hot water circulation valve 34 and decreases the opening of the hot water inlet valve 33 to reduce the amount of hot water entering the heating jacket 11. Conversely, when the program controller receives a temperature value detected by the first temperature sensor 12 that is lower than the reaction temperature range of tetramethylolsulfate, it decreases the opening of the hot water circulation valve 34 and increases the opening of the hot water inlet valve 33 to increase the amount of hot water entering the heating jacket 11, thereby controlling the temperature inside the reactor within the target range and ensuring that the reaction to generate tetramethylolsulfate proceeds smoothly.

[0025] Furthermore, the second temperature sensor 22 is signal-connected to the programmable controller and is linked to the on / off valve of the steam replenishment pipeline 24 via the programmable controller. When the programmable controller receives a temperature signal from the second temperature sensor 22 that is lower than the set temperature in the hot water tank 20, it activates the on / off valve of the steam replenishment pipeline 24 to supply hot steam to the hot water tank 20, raising the water temperature in the hot water tank 20 to the set temperature and preventing the water temperature in the hot water tank 20 from failing to reach the required reaction temperature of the reactor.

[0026] Furthermore, the liquid level sensor 21 is signal-connected to the programmable controller (PCC), and is linked to the on / off valve of the discharge pump via the PCC. When the PCC receives a liquid level signal from the liquid level sensor 21, and the converted liquid level value reaches 80% of the maximum liquid level, the discharge pump is turned on to deliver the liquid in the hot water tank to the water inlet of the steam humidification device 40. When the PCC receives a liquid level signal from the liquid level sensor 21, and the converted liquid level value reaches the minimum liquid level, the discharge pump is turned off. This achieves both regulation of the water storage in the hot water tank and recycling of steam condensate, reducing wastewater volume.

[0027] The above-mentioned tetramethylol phosphate reaction heating device based on steam condensate recycling has the following advantages: through the design of the hot water tank 20, the steam condensate generated by the tetramethylol phosphate evaporator is collected separately and then used for heating the tetramethylol phosphate reaction vessel and replenishing the steam humidification device 40. On the one hand, it saves heat energy and water resources, and on the other hand, it reduces the amount of wastewater, lowers production costs, and is highly practical.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tetrahydroxymethylphosphonic acid reaction heating device based on steam condensate recycling, characterized in that, Includes a reaction vessel, a hot water tank, a hot water circulation pump, and a steam humidification device; The outer wall of the reactor is fitted with a heating jacket; The top of the hot water tank is connected to the steam condensate pipe of the evaporation device; The inlet of the hot water circulation pump is connected to the outlet of the hot water tank, and its outlet is connected to the first branch pipe and the second branch pipe. The first branch pipe is connected to the hot water inlet of the heating jacket and is equipped with a hot water inlet valve. The second branch pipe is connected to the return port of the hot water tank and is equipped with a hot water circulation valve. The water inlet of the steam humidification device is connected to the water outlet of the hot water tank via a pipe with a discharge pump.

2. The apparatus according to claim 1, characterized in that, A submersible distributor is installed inside the hot water tank, and one end of the steam condensate pipe extends into the hot water tank and is connected to the submersible distributor.

3. The apparatus according to claim 2, characterized in that, The submersible distributor is a porous coil structure and is installed below the liquid surface in the hot water tank.

4. The apparatus according to claim 3, characterized in that, The diameter of the holes in the submersible distributor is 5-10 mm, and the hole distribution density is 3-5 holes / 10 cm².

5. The apparatus according to claim 1, characterized in that, A precision filter is installed on the pipeline between the discharge pump and the outlet of the hot water tank.

6. The apparatus according to any one of claims 1-5, characterized in that, A first temperature sensor is installed inside the reactor, and a level gauge and a second temperature sensor are installed inside the hot water tank.

7. The apparatus according to claim 6, characterized in that, The device also includes a programmable controller, which is signal-connected to the first temperature sensor, the second temperature sensor, and the liquid level sensor.

8. The apparatus according to claim 7, characterized in that, The first temperature sensor is connected to the hot water inlet valve and the hot water circulation valve through the program controller.

9. The apparatus according to claim 7, characterized in that, The liquid level sensor is connected to the discharge pump via the programmable controller.

10. The apparatus according to claim 7, characterized in that, The hot water tank is equipped with a steam replenishment pipeline, and the second temperature sensor is connected to the on / off valve of the steam replenishment pipeline through the program controller.

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