Energy-saving system for utilizing waste water generated by cooling circulating water purification

Abstract

The utility model discloses an energy-saving system for utilizing waste water generated by cooling circulating water purification, which comprises a water purification system waste water tank, an emergency water tank and a fire-fighting pool, the fire-fighting pool is communicated with a main pipe through a fire-fighting water supply pipe, and the main pipe is communicated with the emergency water tank. The side surface of the wastewater tank of the water purification system is communicated with the settling tank through a waste discharge pipe, a first electric valve and a first centrifugal pump are respectively arranged on the waste discharge pipe, and a filter pipe is arranged on the side surface of the settling tank. Wastewater generated by the water purification system is fed into the wastewater tank of the water purification system, then is settled by the settling tank and filtered by the filter pipe, and then is fed into the emergency water tank for fire fighting, so that early-stage fire extinguishing water with pressure is provided for the spraying system when local fire breaks out, the wastewater generated by the water purification system can be effectively utilized, and the overall water purification cost is reduced; water resources are saved, waste is reduced, and energy conservation and environment protection are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater utilization technical field, concretely is a kind of cooling circulating water purification produced wastewater utilization energy-saving system. BACKGROUND

[0002] To purify the running environment of cooling circulating water, reduce scale, avoid the plugging of cooler and reduce cooling efficiency, the company has introduced water purification system for cooling circulating water. Water purification system runs nearly a year, the effect is remarkable, reduces the use of scale remover and other reagents, saves cost, but the wastewater of water purification system is serious, and the wastewater amount can reach about 40%. Based on the current situation, to save cost, save water resources, reduce waste, waste recycling, we propose a kind of cooling circulating water purification produced wastewater utilization energy-saving system. UTILITARY MODEL

[0003] The utility model solves the technical problems of overcoming the defects of the prior art, providing a cooling circulating water purification produced wastewater utilization energy-saving system, which can effectively utilize the wastewater generated by the water purification system, reduce the overall water purification cost, save water resources, reduce waste, and is conducive to energy saving and environmental protection, and can effectively solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of cooling circulating water purification produced wastewater utilization energy-saving system, including water purification system wastewater tank, emergency water tank and fire water pool, fire water pool is communicated with main pipe by fire water supply pipe, main pipe is communicated with emergency water tank, and water pipe is arranged on emergency water tank, the side surface of water purification system wastewater tank is communicated with sediment tank by waste pipe, and first electric valve and first centrifugal pump are respectively arranged on waste pipe, the side surface of sediment tank is provided with filter pipe, filter pipe is communicated with main pipe by conduit, and second centrifugal pump and second check valve are respectively arranged on conduit.

[0005] As a preferred technical scheme of the utility model, the water purification system wastewater tank, the emergency water tank and the fire water pool are all provided with ultrasonic wireless liquid level meter, the ultrasonic wireless liquid level meter is connected with the controller in control box by wireless, and the controller in control box is electrically connected with the first electric valve, the first centrifugal pump and the second centrifugal pump.

[0006] As a preferred technical scheme of the utility model, the filter pipe includes fixed pipe fixedly arranged on the sediment tank and movable pipe connected with the fixed pipe by sealing connection cylinder, the other end of the movable pipe is connected with the conduit by sealing connection cylinder, the second electric valve and the first manual valve are respectively arranged on the fixed pipe, the second electric valve is electrically connected with the controller in control box, and the first check valve is installed on the side of the movable pipe away from the fixed pipe.

[0007] As a preferred technical scheme of the utility model, the stainless steel metal screen, the sintered activated carbon filter core layer, the modified fiber ball filter material layer and the hollow fiber ultrafiltration membrane are sequentially arranged on the inner side of the movable pipe along the water outlet direction.

[0008] As a preferred technical scheme of the utility model, the filter pipe is provided with at least two, and the end portions of the at least two filter pipes are connected in parallel and communicated with the conduit.

[0009] As a preferred technical scheme of the utility model, the second manual valve, the third centrifugal pump and the third check valve are sequentially arranged on the fire-fighting water supply pipe along the water outlet direction, and the third centrifugal pump is electrically connected with the controller in the control box.

[0010] As a preferred technical scheme of the utility model, the pressure transmitter is installed on the fire-fighting water supply pipe and electrically connected with the controller in the control box.

[0011] As a preferred technical scheme of the utility model, the fire-fighting water pool is communicated with the municipal water supply pipe, and the third manual valve is installed on the municipal water supply pipe.

[0012] Compared with the prior art, the utility model has the beneficial effects that the waste water generated by the water purification system is sent into the water purification system waste water tank, then is sent into the fire-fighting emergency water tank after the sedimentation of the sedimentation tank and the filtration of the filter pipe, and provides the pre-period pressure fire extinguishing water for the spray system when local fire occurs, so that the waste water generated by the water purification system can be effectively utilized, the overall water purification cost is reduced, the water resource is saved, the waste is reduced, energy conservation and environmental protection are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the structural schematic diagram of the utility model;

[0014] Fig. 2 It is the local structural schematic diagram of the utility model.

[0015] In the drawing: 1 water purification system waste water tank, 2 sedimentation tank, 3 emergency water tank, 4 fire-fighting water pool, 5 fire-fighting water supply pipe, 6 waste pipe, 7 filter pipe, 71 fixed pipe, 72 movable pipe, 73 sealing connection cylinder, 74 stainless steel metal screen, 75 sintered activated carbon filter core layer, 76 modified fiber ball filter material layer, 77 hollow fiber ultrafiltration membrane, 8 conduit, 9 main pipe, 10 municipal water supply pipe, 11 control box, 12 ultrasonic wave wireless liquid level meter, 13 water outlet pipe, 14 first electric valve, 15 first centrifugal pump, 16 second electric valve, 17 first manual valve, 18 first check valve, 19 second centrifugal pump, 20 second check valve, 21 second manual valve, 22 third centrifugal pump, 23 third check valve, 24 third manual valve, 25 pressure transmitter. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0017] Please refer to Figs. 1-2 The utility model provides a kind of technical scheme: a kind of cooling circulating water purification produced wastewater utilization energy-saving system, including water purification system wastewater tank 1, emergency water tank 3 and fire pool 4, fire pool 4 is communicated with main pipe 9 by fire water supply pipe 5, main pipe 9 is communicated with emergency water tank 3, fire pool 4 is used to store fire water, is important supplementary means of natural water source, municipal water supply pipe network and other fire water source;Emergency water tank 3 is provided with water outlet pipe 13, water outlet pipe 13 is communicated with fire sprinkler system, provides the fire extinguishing water with pressure of early stage for sprinkler system when local fire, water outlet pipe 13 can also be communicated with the garden greening irrigation pipeline in factory, since the wastewater amount produced by water purification system in my factory is larger every month, therefore, after emergency fire water in emergency water tank 3 exceeds certain amount, it can be introduced into garden greening irrigation pipeline, is used for garden greening, reasonably utilizes water resource, further reduces the waste of water resource.

[0018] The side surface of water purification system wastewater tank 1 is communicated with sediment tank 2 by waste pipe 6, first electric valve 14 and first centrifugal pump 15 are respectively arranged on waste pipe 6, waste water in water purification system wastewater tank 1 is pumped into sediment tank 2 for deposition by first centrifugal pump 15, dosing pipe can be arranged on sediment tank 2 for adding flocculating agent etc., to assist in treating waste water when waste water needs flocculation and deposition, the side surface of sediment tank 2 is provided with filter pipe 7, particle and the like in waste water after deposition can be filtered and treated, and waste water reaches the standard of fire water, filter pipe 7 is communicated with main pipe 9 by conduit 8, second centrifugal pump 19 and second check valve 20 are respectively arranged on conduit 8, waste water after deposition and filtration is transported to emergency water tank 3 along conduit 8 and main pipe 9 by second centrifugal pump 19, provides the fire extinguishing water with pressure of early stage for sprinkler system when local fire, can effectively utilize waste water produced by water purification system, reduce the overall water purification cost, save water resource, reduce waste, conducive to energy saving and environmental protection.

[0019] Preferably, the water purification system waste water tank 1, the emergency water tank 3 and the fire water tank 4 are provided with ultrasonic wireless liquid level meters 12 respectively for detecting the liquid level in the water purification system waste water tank 1, the emergency water tank 3 and the fire water tank 4. The ultrasonic wireless liquid level meters 12 are wirelessly connected to the controller in the control box 11. The control box 11 is preferably a PLC all-in-one machine, and the controller is preferably a commonly used PLC controller such as a Siemens S7 series PLC controller. The controller in the control box 11 is electrically connected to the first electric valve 14, the first centrifugal pump 15 and the second centrifugal pump 19 respectively. The controller automatically controls the opening and closing of the electric valves and centrifugal pumps according to the liquid level in each tank. When the liquid level in the emergency water tank 3 is high, the first centrifugal pump 15 and the second centrifugal pump 19 are closed to stop water supply to the emergency water tank 3. When the liquid level in the emergency water tank 3 is low, the first centrifugal pump 15 and the second centrifugal pump 19 are opened to send waste water into the emergency water tank 3, ensuring the safety of the fire water.

[0020] Preferably, the filter pipe 7 includes a fixed pipe 71 fixedly arranged on the sediment tank 2 and a movable pipe 72 connected to the fixed pipe 71 through a sealing connecting cylinder 73. The other end of the movable pipe 72 is connected to the conduit 8 through a sealing connecting cylinder 73. The inner side of the sealing connecting cylinder 73 is provided with a sealing washer and an internal thread. The two ends of the movable pipe 72 are respectively provided with corresponding sealing washers and external threads. The two sealing connecting cylinders 73 are respectively slidably arranged on the fixed pipe 71 and the conduit 8. Before installing the movable pipe 72, the two sealing connecting cylinders 73 are moved away from each other, and then the movable pipe 72, the fixed pipe 71 and the conduit 8 are butted. Then the sealing connecting cylinder 73 is rotated to fix the movable pipe 72 through the thread and press the sealing washer tightly. By setting the detachable filter pipe 7, the filter pipe 7 can be removed for cleaning or replacement after a period of filtration, ensuring its filtration performance and ensuring that the treated waste water can be applied to fire fighting and landscaping.

[0021] The fixed pipe 71 is provided with a second electric valve 16 and a first manual valve 17 respectively. The second electric valve 16 is electrically connected to the controller in the control box 11 for controlling the on-off of the filter pipe 7.

[0022] Further preferred technical solutions, the inside of the movable pipe 72 is sequentially provided with stainless steel mesh 74, sintered activated carbon filter core layer 75, modified fiber ball filter material layer 76 and hollow fiber ultrafiltration membrane 77 along the water outlet direction, the stainless steel mesh 74 is provided with two, the two stainless steel meshes 74 have different pore sizes, which can perform graded filtration on the precipitated wastewater, the pore size of the stainless steel mesh 74 is 100-1000 μm, which is used for intercepting larger volume suspended solids as a pretreatment barrier; the pore size of the sintered activated carbon filter core layer 75 is 0.5-50 μm (more than 85% of micropores), which can adsorb organic matter (COD removal rate 30-50%), and simultaneously remove color and odor; the surface of the modified fiber ball filter material layer 76 is treated by grafting quaternary ammonium salt groups, which is used for physical interception + electrostatic adsorption of negative colloids, and is aimed at 1-5 μm particle interception; the hollow fiber ultrafiltration membrane 77 is preferably made of PVDF (polyvinylidene fluoride), the molecular weight cut-off is 10-50 kDa, and the corresponding pore size is 0.01-0.1 μm, which is used for completely removing colloids, bacteria and the like, and after multi-stage filtration, the wastewater can be used for firefighting and landscaping, etc., avoiding damage to firefighting pipelines and landscaping plants, etc.

[0023] Optionally, a water quality monitoring device such as a turbidimeter, a conductivity meter, a COD online monitor, etc. can also be arranged in the conduit 8, which is used for monitoring the filtered water, and timely alarms when the water quality is unqualified, avoiding unqualified water into the emergency water tank.

[0024] Optionally, the filter pipe 7 is provided with at least two, the end portions of the at least two filter pipes 7 are connected in parallel and communicated with the conduit 8, specifically, the conduit 8 near one end of the filter pipe 7 is provided with at least two branch pipes, the at least two branch pipes are respectively connected with the movable pipe 72 of the filter pipe 7 through the sealing connecting cylinder 73, by arranging two or more filter pipes 7, one can be used as the main one and the other as the standby one, when the inside of the filter pipe 7 being used needs to be cleaned or the filter material needs to be replaced, the second electric valve 16 and the first manual valve 17 on the standby filter pipe 7 can be opened first, and then the second electric valve 16 and the first manual valve 17 on the other filter pipe 7 are closed, then the movable pipe 72 can be disassembled for cleaning or replacement, etc., ensuring the continuous conveying of the pipeline without shutdown for cleaning, and the use is more convenient.

[0025] The preferred technical solutions, the second manual valve 21, the third centrifugal pump 22 and the third one-way valve 23 are sequentially arranged on the fire-fighting water supply pipe 5 along the water outlet direction, the third centrifugal pump 22 is electrically connected with the controller in the control box 11, after the fire occurs, the emergency water tank 3 provides the pre-period pressurized fire extinguishing water for the spraying system, at this time the controller opens the third centrifugal pump 22 to supplement the water in the fire-fighting pool 4 to the spraying system, so as to ensure the fire extinguishing effect.

[0026] The first one-way valve 18 is installed on the active pipe 72 far from the fixed pipe 71, and considering that various pipes are shared and will be switched at any time, the multiple one-way valves are reasonably arranged in the modification to ensure that the water flows in one direction and cannot flow backward.

[0027] Preferably, the fire water supply pipe 5 is provided with a pressure transmitter 25, the pressure transmitter 25 is electrically connected with the controller in the control box 11, the pressure transmitter 25 is used for detecting the water pressure of the fire water supply pipe 5 and transmitting the detected water pressure signal to the controller, so as to facilitate the automatic monitoring of the fire water supply safety.

[0028] The controller, the pressure transmitter 25, the ultrasonic wireless liquid level meter 12, the first electric valve 14, the second electric valve 16, the first centrifugal pump 15, the second centrifugal pump 19 and the third centrifugal pump 22 used in the application are all common electronic components in the prior art, and the specific structure, working principle, control mode and circuit connection thereof are all known technologies, which will not be described in detail.

[0029] Preferably, the fire water pool 4 is communicated with the municipal water supply pipe 10, the third manual valve 24 is installed on the municipal water supply pipe 10, and the municipal water supply pipe 10 is used for conveying the municipal water supply to the fire water pool 4 and is an important supplementary means of the fire water source.

[0030] The un-disclosed parts in the utility model are all prior art, and the specific structure, material and working principle will not be described in detail. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling circulating water purification produced wastewater utilization energy-saving system, comprising a purified water system wastewater tank (1), an emergency water tank (3) and a fire water pool (4), the fire water pool (4) is communicated with a main pipe (9) through a fire water supply pipe (5), the main pipe (9) is communicated with the emergency water tank (3), a water outlet pipe (13) is arranged on the emergency water tank (3), characterized in that: The side surface of the wastewater tank (1) of the water purification system is communicated with the sediment tank (2) through a waste discharge pipe (6), the waste discharge pipe (6) is respectively provided with a first electric valve (14) and a first centrifugal pump (15), the side surface of the sediment tank (2) is provided with a filter pipe (7), the filter pipe (7) is communicated with a main pipe (9) through a guide pipe (8), the guide pipe (8) is respectively provided with a second centrifugal pump (19) and a second check valve (20). ​ 2. The system as claimed in claim 1, wherein the system is characterized by: The wastewater tank (1), the emergency water tank (3) and the fire water tank (4) are respectively provided with an ultrasonic wireless liquid level meter (12), the ultrasonic wireless liquid level meter (12) is wirelessly connected with a controller in a control box (11), and the controller in the control box (11) is electrically connected with the first electric valve (14), the first centrifugal pump (15) and the second centrifugal pump (19).

3. The system as claimed in claim 1, wherein the system is characterized by: The filter pipe (7) comprises a fixed pipe (71) fixedly arranged on the sediment tank (2) and a movable pipe (72) connected with the fixed pipe (71) through a sealing connecting cylinder (73), one end of the movable pipe (72) is connected with the guide pipe (8) through the sealing connecting cylinder (73), and the fixed pipe (71) is respectively provided with a second electric valve (16) and a first manual valve (17), the second electric valve (16) is electrically connected with the controller in the control box (11), and a side of the movable pipe (72) away from the fixed pipe (71) is provided with a first check valve (18).

4. The system according to claim 3, wherein the system is characterized by: The inside of the movable pipe (72) is sequentially provided with a stainless steel mesh (74), a sintered activated carbon filter core layer (75), a modified fiber ball filter material layer (76) and a hollow fiber ultrafiltration membrane (77) along the water outlet direction.

5. A cooling circulating water purification produced wastewater utilization energy saving system according to claim 4, characterized in that: The filter pipe (7) is provided with at least two filter pipes (7), and the end portions of the at least two filter pipes (7) are connected in parallel and communicated with the guide pipe (8).

6. The energy-saving system for utilizing wastewater generated from cooling circulating water purification according to claim 1, characterized in that: The fire water supply pipe (5) is sequentially provided with a second manual valve (21), a third centrifugal pump (22) and a third check valve (23) along the water outlet direction, and the third centrifugal pump (22) is electrically connected with the controller in the control box (11).

7. The system according to claim 1 or 6, wherein the system is characterized by: The fire water supply pipe (5) is provided with a pressure transmitter (25), and the pressure transmitter (25) is electrically connected with the controller in the control box (11).

8. The energy-saving system for wastewater utilization generated from cooling circulating water purification according to claim 1, characterized in that: The fire water tank (4) is communicated with a municipal water supply pipe (10), and the municipal water supply pipe (10) is provided with a third manual valve (24).

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