Wastewater treatment agent temperature regulation and control device

Abstract

The utility model discloses a wastewater treatment agent temperature regulation and control device which comprises an agent storage tank, a heat exchange pool and an underground water extraction well. A circulating heat exchange pipeline is jointly installed on the wastewater treatment agent temperature regulation and control device, a liquid outlet and a liquid return opening, the circulating heat exchange pipeline is partially arranged in a heat exchange pool, a water conveying pipeline is arranged between an underground water extraction well and the heat exchange pool, a first online thermometer is installed on an agent storage tank, and a second online thermometer is installed on the heat exchange pool. The circulating heat exchange pipeline and the water conveying pipeline are connected in a matched mode and comprise the agent storage tank, the heat exchange pool and the underground water extraction well, so that the temperature of agents in the agent storage tank can be adjusted to be within a proper range, the properties of the agents are stable, and it is ensured that the repairing agents cannot deteriorate due to too high and too low temperature to affect the repairing treatment performance; meanwhile, loss caused by crystallization or volatilization of the agent is reduced, the utilization rate of the agent is increased, and the repairing effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of environmental protection technical field, specifically wastewater treatment reagent temperature regulation and control device. BACKGROUND

[0002] With the advancement of urbanization and industrial structure adjustment, pesticide, chemical and other industrial enterprises in large and medium-sized cities are gradually closed or moved out of the city center, and a large number of contaminated sites are left to carry out soil and groundwater remediation work.

[0003] Pumping treatment is a traditional technology for groundwater and soil remediation. Contaminated groundwater is pumped to the ground, treated and discharged into surface water or a sewage treatment plant, or reinjected into the ground. By continuously pumping contaminated groundwater, the pollution range and degree are gradually reduced, and the pollutants in the aquifer medium are removed by converting into water; pumping treatment technology requires the construction of a certain number of pumping wells (if necessary, injection wells are also constructed) and corresponding wastewater treatment systems. The key to this method is the arrangement of the well system, which can efficiently control the flow of contaminated water. The treatment method after pumping contaminated water to the ground is consistent with conventional water treatment.

[0004] The wastewater treatment method in the groundwater remediation project mainly uses physical and chemical methods. Chemical methods are mainly achieved through remediation reagents. The remediation construction unit usually sets up a special warehouse at the construction site according to the principles of drying, ventilation, rain protection, sun protection, fire protection, and leakage prevention to store remediation reagents. However, due to environmental temperature, especially in summer or winter, liquid reagents may decompose rapidly at high temperatures or crystallize at low temperatures, making it difficult to achieve stable storage conditions for liquid reagents prepared on site or purchased from outside the wastewater treatment system, thereby affecting the effectiveness of liquid reagents or the operational stability of the treatment system. Therefore, we provide a wastewater treatment reagent temperature regulation and control device. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a wastewater treatment reagent temperature regulation and control device to solve the problems raised in the background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The wastewater treatment reagent temperature regulation and control device includes a reagent storage tank, a heat exchange pool, and a groundwater pumping well. The reagent storage tank is provided with a liquid outlet and a liquid return port. The liquid outlet and the liquid return port are jointly installed with a circulating heat exchange pipeline. The circulating heat exchange pipeline is partially arranged in the heat exchange pool. A water delivery pipeline is provided between the groundwater pumping well and the heat exchange pool. A first online thermometer is installed on the reagent storage tank. A second online thermometer is installed on the heat exchange pool.

[0008] As a further scheme of the utility model: the probe of the first online thermometer extends into the medicament storage tank, and the probe of the second online thermometer extends into the heat exchange pool.

[0009] As a further scheme of the utility model: the circulating heat exchange pipeline comprises a circulating pump, a first connecting pipe, a second connecting pipe, a third connecting pipe and a heat exchange coil.

[0010] As a further scheme of the utility model: one end of the first connecting pipe and the second connecting pipe is connected to the liquid inlet end and the liquid outlet end of the circulating pump respectively, the other end of the first connecting pipe is connected to the liquid outlet, the other end of the second connecting pipe is connected to one end of the heat exchange coil, the heat exchange coil is arranged in the heat exchange pool, the other end of the heat exchange coil is fixedly connected to one end of the third connecting pipe, and the other end of the third connecting pipe is connected to the liquid return port.

[0011] As a further scheme of the utility model: the water delivery pipeline comprises a pumping pump and a fourth connecting pipe.

[0012] As a further scheme of the utility model: the pumping pump is arranged in the underground water pumping well, one end of the fourth connecting pipe is connected to the output end of the pumping pump, and the other end of the fourth connecting pipe corresponds to the heat exchange pool.

[0013] As a further scheme of the utility model: the first online thermometer, the second online thermometer, the circulating pump and the pumping pump are all externally connected to a power supply, the first online thermometer, the second online thermometer, the circulating pump and the pumping pump are all electrically connected to an external controller, the control mode is automatic control through the controller, the control circuit of the controller can be realized through simple programming of a person skilled in the art, and the control mode and the circuit connection of the utility model will not be explained in detail, the external controller mentioned in the specification can play a control role on the electrical elements mentioned in the specification, and the external controller is a conventional known device.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a circulating heat exchange pipeline and water delivery pipeline are connected to medicament storage tank, heat exchange pool and underground water pumping well, so that the medicament temperature in the medicament storage tank can be adjusted in a suitable range, the medicament property is stable, the repair medicament is prevented from being deteriorated due to too high or too low temperature, the repair treatment performance is prevented from being affected, the loss of the medicament due to crystallization or volatilization is reduced, the utilization rate of the medicament is improved, the project cost is reduced, and the repair effect is ensured.

[0016] The utility model discloses a heat exchange is carried out through groundwater extraction, makes full use of the characteristics that groundwater temperature is relatively constant, makes full use of the geothermal resource that groundwater carries, and the temperature of medicament is automatically regulated through the circulation of liquid medicament and the indirect heat exchange of the extraction groundwater of driving of circulating pump, does not need the supply of additional heat source, and is environmental protection and energy saving. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is structural schematic diagram for wastewater treatment medicament temperature regulation device.

[0018] In the drawing: 1, medicament storage tank, 2, heat exchange pool, 3, groundwater extraction well, 4, liquid outlet, 5, liquid return, 6, circulating heat exchange pipeline, 7, water delivery pipeline, 8, first online thermometer, 9, second online thermometer, 10, circulating pump, 11, first connecting pipe, 12, second connecting pipe, 13, third connecting pipe, 14, heat exchange coil, 15, extraction pump, 16, fourth connecting pipe, 17, ball valve. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0020] Please refer to Figure 1 In the embodiments of the utility model, wastewater treatment medicament temperature regulation device, including medicament storage tank 1, heat exchange pool 2 and groundwater extraction well 3, the medicament storage tank 1 is 30m³ PE material, is provided with ultrasonic liquid level meter and plastic lining paddle in, the medicament in medicament storage tank 1 can include oxidizing agent, reducing agent, activator, adjusting agent, microbial nutrient agent or microbial strain according to the different soil groundwater pollutants one or more combinations, oxidizing agent, reducing agent, activator, adjusting agent etc. can have corrosive, medicament storage tank 1 is equipped with liquid outlet 4 and liquid return 5, and the liquid outlet 4 and liquid return 5 are jointly installed with circulating heat exchange pipeline 6, and the circulating heat exchange pipeline 6 is partially arranged in heat exchange pool 2, and water delivery pipeline 7 is equipped between groundwater extraction well 3 and heat exchange pool 2, and the first online thermometer 8 is installed on medicament storage tank 1, and the second online thermometer 9 is installed on heat exchange pool 2.

[0021] The probe of first online thermometer 8 extends into medicament storage tank 1, and the probe of second online thermometer 9 extends into heat exchange pool 2.

[0022] The circulating heat exchange pipeline 6 comprises a circulating pump 10, a first connecting pipe 11, a second connecting pipe 12, a third connecting pipe 13 and a heat exchange coil 14, the circulating pump 10 is a horizontal fluoroplastic centrifugal pump, the flow rate is 25 m3 / hr, and the lift is 32 m, the first connecting pipe 11, the second connecting pipe 12 and the third connecting pipe 13 are all HDPE material pipes with a diameter of 32 mm, and the heat exchange coil 14 uses a corrosion-resistant metal pipe or a metal pipe with corrosion-resistant material inner and outer double lining, such as a double-fluoroplastic F46 brass pipe.

[0023] One end of the first connecting pipe 11 and the second connecting pipe 12 is connected to the liquid inlet end and the liquid outlet end of the circulating pump 10 respectively, the other end of the first connecting pipe 11 is connected to the liquid outlet 4, the other end of the second connecting pipe 12 is connected to one end of the heat exchange coil 14, the heat exchange coil 14 is arranged in the heat exchange pool 2, the other end of the heat exchange coil 14 is fixedly connected to one end of the third connecting pipe 13, the other end of the third connecting pipe 13 is connected to the liquid return port 5, and a ball valve 17 is arranged on the second connecting pipe 12, and the ball valve 17 is made of HDPE material.

[0024] The water conveying pipeline 7 comprises a pumping pump 15 and a fourth connecting pipe 16.

[0025] The pumping pump 15 is arranged in the underground water pumping well 3, one end of the fourth connecting pipe 16 is connected to the output end of the pumping pump 15, and the other end of the fourth connecting pipe 16 corresponds to the heat exchange pool 2.

[0026] The first online thermometer 8, the second online thermometer 9, the circulating pump 10 and the pumping pump 15 are all externally connected to a power supply, the first online thermometer 8, the second online thermometer 9, the circulating pump 10 and the pumping pump 15 are electrically connected to an external controller, the control mode is automatic control through the controller, the control circuit of the controller can be realized through simple programming of a person skilled in the art, the controller can be automatically switched and manually controlled, and the control mode and the circuit connection are common knowledge in the field, so the control mode and the circuit connection are not explained in detail, the external controller mentioned in the specification can play a control role on the electrical elements mentioned in the specification, and the external controller is a conventional known device.

[0027] Through the cooperation of the circulating heat exchange pipeline 6 and the water conveying pipeline 7, the medicament storage tank 1, the heat exchange pool 2 and the underground water pumping well 3 are connected, so that the temperature of the medicament in the medicament storage tank 1 can be adjusted in a suitable range, the stability of the medicament is ensured, the repair medicament is prevented from being deteriorated due to excessively high or low temperature, the repair treatment performance is affected, the loss of the medicament caused by crystallization or volatilization is reduced, the utilization rate of the medicament is improved, the project cost is reduced, and the repair effect is ensured.

[0028] The device is characterized in that: the device comprises a liquid medicament storage tank 1, a first connecting pipe 11, a second connecting pipe 12, a third connecting pipe 13, a heat exchange coil 14, a circulating pump 10, a fourth connecting pipe 16, a heat exchange pool 2, a second online thermometer 9, a ball valve 17, a controller, a first online thermometer 8 and a pumping pump 15.

[0029] The working principle of the device is as follows:

[0030] Specifically, when the ammonia nitrogen in the underground water exceeds the standard, the underground water is pumped out to the ground for wastewater treatment by the breakpoint chlorination method, and the main medicaments include sodium hypochlorite solution and sodium sulfite solution, which respectively play the roles of oxidizing agent and reducing agent in the treatment process, wherein the suitable storage temperature of the sodium hypochlorite solution is between 15 DEG C and 25 DEG C, and the decomposition speed is obviously accelerated when the temperature exceeds 30 DEG C, especially when the temperature is higher than 70 DEG C, the sodium hypochlorite solution is decomposed strongly, and even explosion may occur, however, in the actual construction operation, the ground surface and the environment temperature may still exceed 50 DEG C under the condition that the sunshade shed and the ventilation facilities are set on the site, in addition, when the saturated sodium sulfite solution is in the range of 0 DEG C to 30 DEG C, the mass concentration changes greatly with the temperature in the range of 12.5% to 25%, thus, if the concentration is high, the environment temperature is low, and the medicament crystallization may block the pipeline, at this time, the device is used to automatically adjust the temperature of the medicament.

[0031] The temperature of the medicament storage tank 1 is monitored in real time by the first online thermometer 8, when the temperature in the medicament storage tank 1 is lower than or higher than the temperature set by the controller, for example, the medicament temperature exceeds the normal use range of 15 DEG C to 20 DEG C, the ball valve 17 is opened, at this time, the circulating pump 10 and the pumping pump 15 work, and the temperature of the heat exchange pool 2 is monitored by the second online thermometer 9, the pumping pump 15 pumps the underground water into the heat exchange pool 2 through the fourth connecting pipe 16, the underground water in the heat exchange pool 2 is pumped and treated by the underground water treatment system, so as to maintain the temperature of the heat exchange pool 2 stable, at this time, the medicament in the medicament storage tank 1 is circulated by the circulating pump 10 through the first connecting pipe 11, the second connecting pipe 12, the third connecting pipe 13 and the heat exchange coil 14, so as to exchange heat with the underground water in the heat exchange pool 2 through the heat exchange coil 14, thereby adjusting the medicament temperature which may be too high or too low due to the influence of the environment temperature to the temperature range close to the underground water, and realizing the stable storage temperature of the liquid medicament.

[0032] Although the device is described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced by the equivalent ones by the person skilled in the art, any modification, equivalent replacement, improvement and the like within the spirit and principle of the device should be included in the protection scope of the device.

Claims

1. A temperature regulating device for wastewater treatment reagent, comprising a reagent storage tank (1), a heat exchange pool (2) and a groundwater extraction well (3), characterized in that: The medicine storage tank (1) is provided with a liquid outlet (4) and a liquid return port (5), the liquid outlet (4) and the liquid return port (5) are jointly provided with a circulating heat exchange pipeline (6), the circulating heat exchange pipeline (6) is partially arranged in the heat exchange pool (2), a water delivery pipeline (7) is arranged between the groundwater extraction well (3) and the heat exchange pool (2), the medicine storage tank (1) is provided with a first online thermometer (8), and the heat exchange pool (2) is provided with a second online thermometer (9).

2. The wastewater treatment chemical temperature regulating apparatus of claim 1, wherein: The probe of the first online thermometer (8) extends into the medicine storage tank (1), and the probe of the second online thermometer (9) extends into the heat exchange pool (2).

3. The wastewater treatment chemical temperature regulating apparatus of claim 1, wherein: The circulating heat exchange pipeline (6) comprises a circulating pump (10), a first connecting pipe (11), a second connecting pipe (12), a third connecting pipe (13) and a heat exchange coil (14).

4. The wastewater treatment chemical temperature regulating apparatus of claim 3, wherein: One end of the first connecting pipe (11) and the second connecting pipe (12) is connected to the liquid inlet end and the liquid outlet end of the circulating pump (10) respectively, the other end of the first connecting pipe (11) is connected with the liquid outlet (4), the other end of the second connecting pipe (12) is connected with one end of the heat exchange coil (14), the heat exchange coil (14) is arranged in the heat exchange pool (2), the other end of the heat exchange coil (14) is fixedly connected with one end of the third connecting pipe (13), and the other end of the third connecting pipe (13) is connected with the liquid return port (5).

5. The wastewater treatment chemical temperature regulating apparatus of claim 1, wherein: The water delivery pipeline (7) comprises an extraction pump (15) and a fourth connecting pipe (16).

6. The wastewater treatment chemical temperature regulating apparatus of claim 5, wherein: The extraction pump (15) is arranged in the groundwater extraction well (3), one end of the fourth connecting pipe (16) is connected to the output end of the extraction pump (15), and the other end of the fourth connecting pipe (16) corresponds to the heat exchange pool (2).

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