A non-powered control and collection system for chemical library fire accident wastewater

Abstract

The application discloses a kind of chemical warehouse fire accident wastewater unpowered control and collection system, mainly including fire accident wastewater collection well, wastewater valve control well, rainwater valve control well, fire wastewater ditch, outdoor wastewater pipeline, wastewater diversion well, accident pool.It is characterized by: system utilizes hydraulic power from fire accident wastewater collection well, wastewater valve control well, rainwater valve control well Joint automatic control different function valve in wastewater diversion well opening and closing;Normal working condition, wastewater diversion well inside accident pool one side valve is closed, rainwater pipe one side valve is opened, fire condition, wastewater diversion well inside accident pool one side valve is opened, rainwater pipe one side valve is closed.The application solves the current chemical warehouse fire accident wastewater collection system needs manual switching valve in diversion well, causes heavy amount of repeated labor, cannot guarantee timely switching and other safety problems.Simultaneously system composition and working principle are simple, easy to construction installation, easy to large-scale use and promotion.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of drainage, and in particular, the present application relates to a kind of chemical warehouse fire accident wastewater unpowered control and collection system. BACKGROUND

[0002] At present, the chip and other electronic industries in China are booming, leading to a large number of electronic industry projects to be built as scheduled. As we all know, each electronic industry project must set up a building unit for storing chemicals for auxiliary production, which is called a chemical warehouse. A large number of dangerous chemicals are stored in the chemical warehouse. For safety considerations, a cofferdam is set up in the chemical warehouse to prevent chemical leakage to the protection zone and cause environmental pollution. This method has been proven to be an effective method for many years in China. However, if a fire occurs in the chemical warehouse, various fire extinguishing facilities (especially water fire extinguishing systems) may spray a large amount of liquid to extinguish the fire, which may cause a large amount of fire-fighting wastewater mixed with hazardous chemical waste liquid to overflow the warehouse protection zone, enter the nearby soil and water, and cause serious environmental pollution incidents. It may also pose a risk to people's health.

[0003] There are two control methods for the traditional chemical warehouse fire accident wastewater collection system: one is to manually control the opening and closing of ordinary valves in the wastewater diversion well, and the other is to manually control the opening and closing of electric valves in the wastewater diversion well in the control room. When the valves in the wastewater diversion well of the current chemical warehouse fire accident wastewater collection system are controlled, the valve on the rainwater pipeline side needs to be closed and the valve on the accident pool side needs to be opened on sunny days; the valve on the rainwater pipeline side needs to be opened and the valve on the accident pool side needs to be closed on rainy days. Due to the uncertainty of rainfall and the danger of the chemical warehouse, a duty officer is required to be on duty for 24 hours to monitor the chemical warehouse fire accident wastewater collection system. However, in practice, the chemical warehouse often does not have a dedicated duty officer, which makes it difficult to switch the valves in the wastewater diversion well in time during rainfall or firefighting, resulting in safety accidents. The present application uses the gravity of the fire accident wastewater as the source of power and uses simple hydraulic principles to directly realize the automatic conversion of the two valves in the wastewater diversion well from normal working conditions to firefighting conditions. The present application has the advantages of simple principle, low failure rate, and basically no need for manual operation, achieving the purpose of unpowered control; it ensures that the chemical warehouse will not cause unorganized runoff of accident wastewater due to firefighting conditions, and has great application prospects. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a chemical warehouse fire accident wastewater unpowered control and collection system, which aims to solve the unsafe control factors existing in the operation of the current chemical warehouse fire accident wastewater collection system, and can also save labor.

[0005] In order to achieve the above object, the present application adopts the following technical scheme: a chemical warehouse fire accident wastewater non-power control and collection system mainly comprises a fire accident wastewater collection well (01), a wastewater valve control well (02), a rainwater valve control well (03), a fire wastewater ditch (04), an outdoor wastewater pipeline (05), a wastewater diversion well (06), an accident pool (07), an outdoor rainwater pipeline (08), a water grate (09), a water trap (10), a fire wastewater pipe (11), an air vent pipe (12), a power piston (13), a spring (14), a working piston (15), hydraulic oil (16), a hydraulic oil cylinder (17), a hydraulic pipe (18), a transmission rod (19), a restraint (20), an accident pool side valve (21), and a rainwater pipeline side valve (22); wherein the fire accident wastewater collection well (01) is arranged at a public area of a chemical storage site, a water grate (02) is arranged at a well mouth, a water trap (10) and a fire wastewater pipe (11) are arranged at a well bottom, and the water trap (10) and the fire wastewater pipe (11) are connected with the wastewater valve control well (02) and the rainwater valve control well (03) respectively, the air vent pipe (12) is arranged at the well mouth of the wastewater valve control well (02) and the rainwater valve control well (03) respectively, the power piston (13), the spring (14), the hydraulic oil (16), and the hydraulic oil cylinder (17) are arranged in the well respectively, the accident pool side valve (20) and the rainwater pipeline side valve (21) are arranged in the wastewater diversion well (06), the accident pool side valve (20) and the wastewater valve control well (02) form a control system through the working piston (15), the transmission rod (19), and the hydraulic pipe (18), the rainwater pipeline side valve (21) and the rainwater valve control well (03) form a control system through the working piston (15), the transmission rod (19), and the hydraulic pipe (18), the fire wastewater ditch (04) is arranged around the chemical warehouse, and the fire wastewater ditch (04), the outdoor wastewater pipeline (05), the wastewater diversion well (06), the accident pool (07), and the outdoor rainwater pipeline (08) jointly form a chemical warehouse fire accident wastewater collection system, wherein the fire wastewater ditch (04), the outdoor wastewater pipeline (05), the wastewater diversion well (06), and the accident pool (07) are connected in series, and the outdoor rainwater pipeline (08) is connected with the wastewater diversion well (06) on the side.

[0006] The fire accident wastewater collection well (01) of the chemical warehouse fire accident wastewater non-power control and collection system is a finished integrated well chamber, and the material includes but is not limited to plastic.

[0007] The power piston (13) in the wastewater valve control well (02) of the chemical warehouse fire accident wastewater non-power control and collection system is smooth and airtight at a contact part with a well wall, and does not leak oil.

[0008] The power-free control and collection system for the wastewater of the chemical warehouse fire accident, wherein the power piston (13) in the rainwater valve control well (03) is smooth and sealed at the contact position with the well wall, and no oil leaks.

[0009] The power-free control and collection system for the wastewater of the chemical warehouse fire accident, wherein the wastewater shunt well (06) is an integrated well chamber, and the material includes but is not limited to plastic, and two groups of valves are arranged in the wastewater shunt well (06), one group of valves is arranged on one side of the accident pool (07), and the other group of valves is arranged on one side of the rainwater pipeline (08).

[0010] The power-free control and collection system for the wastewater of the chemical warehouse fire accident, wherein the restraint (20) is a rigid material that is breathable.

[0011] The power-free control and collection system for the wastewater of the chemical warehouse fire accident, wherein the working conditions are divided into two kinds: normal working condition and fire fighting working condition.

[0012] The power-free control and collection system for the wastewater of the chemical warehouse fire accident, wherein the normal working condition occurs in a period without fire, at this time, the fire accident wastewater collection well (01), the wastewater valve control well (02) and the rainwater valve control well (03) of the power-free control and collection system for the wastewater of the chemical warehouse fire accident are all without water, the accident pool side valve (20) in the wastewater shunt well (06) is normally closed, the rainwater pipeline side valve (21) is normally open, and the power-free control and collection system for the wastewater of the chemical warehouse fire accident only plays a function of discharging rainwater around the chemical warehouse.

[0013] The chemical warehouse fire accident wastewater non-power control and collection system has the fire working condition occurring in the period of fire occurrence. After the fire occurs, the ground generates a large amount of fire-fighting wastewater for a short time due to the work of the fire hydrant, automatic water spray fire extinguishing and other systems in the chemical warehouse, the fire-fighting wastewater first flows into the fire accident wastewater collection well (01) arranged in the public area of the chemical storage site through the water grate (09), and then is divided into the wastewater valve control well (02), the rainwater valve control well (03) through the water trap (10) and the fire-fighting wastewater pipe (11); when the weight of the fire-fighting wastewater in each control well reaches the design requirement, the power piston (13) in each control well is driven by gravity, the power piston (13) is lowered and the spring (14) is compressed, the energy is transmitted to the transmission rod (19) of the corresponding control valve of the wastewater diversion well (06) through the hydraulic oil (16) in the hydraulic oil cylinder (17) and the hydraulic pipe (18), and the system is converted from the normal working condition to the fire working condition under the work of the transmission rod (19), that is, the accident pool side valve (20) is opened and the rainwater pipeline side valve (21) is closed. Finally, if the fire continues, the outdoor wastewater ditch (04) arranged around the chemical warehouse can be used to collect the overflow of the fire-fighting wastewater in the chemical warehouse, and the wastewater is finally collected into the accident pool (07) through the outdoor wastewater pipeline (05) and the wastewater diversion well (06), so that the dangerous consequence of the fire-fighting wastewater flowing into the outdoor rainwater pipeline (08) is avoided.

[0014] The wastewater valve control well (02) and the rainwater valve control well (03) of the chemical warehouse fire accident wastewater non-power control and collection system are the technical core of the application. By using the known hydraulic control principle and Pascal's law, the power piston (13) is driven by the gravity of the fire-fighting wastewater in the fire accident wastewater collection well (01) to realize the effect of opening the accident pool side valve (20) and closing the rainwater pipeline side valve (21) in time in the fire working condition.

[0015] The whole non-power control system of the chemical warehouse fire accident wastewater non-power control and collection system should be carefully analyzed and calculated to ensure the smooth switching between the two working conditions.

[0016] The chemical warehouse fire accident wastewater non-power control and collection system has the following requirements for the chemical warehouse: first, a water retaining threshold is arranged to prevent the chemical wastewater and fire-fighting wastewater from overflowing the chemical warehouse at the first time; and second, the ground is sloped towards the fire accident wastewater collection well (01) to facilitate the ground fire-fighting wastewater to flow into the well at the first time.

[0017] The chemical warehouse fire-fighting accident wastewater non-power control and collection system of the application does not set the function of automatically closing the accident pool side valve (10) and opening the rainwater pipeline side valve (11) after setting the fire-fighting working condition, and is not because this function cannot be realized, but for safety consideration, the fire-fighting wastewater in the wastewater valve control well (20) and the rainwater valve control well (21) is pumped by manual operation after the management personnel confirms that the fire is completely extinguished, and after the pumping is completed, the power piston (13) in each well chamber will gradually return to the original position under the action of the spring (14), and the accident pool side valve (20) and the rainwater pipeline side valve (21) are adjusted to the normal working state, that is, the accident pool side valve (20) in the wastewater diversion well (06) is normally closed, and the rainwater pipeline side valve (21) is normally opened.

[0018] The chemical warehouse fire-fighting accident wastewater non-power control and collection system of the application uses a mobile pump for pumping, and the collected fire-fighting wastewater can be sent to the accident pool or to the laboratory for water quality analysis.

[0019] The chemical warehouse fire-fighting accident wastewater non-power control and collection system of the application has the beneficial effects that the whole system principle is simple, does not need electrical control, is convenient to adopt and construct, basically does not need human participation, and can completely guarantee the collection of fire-fighting wastewater without environmental pollution accidents. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the flow control diagram of the application;

[0021] Figure 2 is the system principle diagram of the application;

[0022] Figure 3 is a plan layout of the application;

[0023] Figure 4 is the schematic diagram of the fire-fighting accident wastewater collection well (01) of the application;

[0024] Figure 5 is the schematic diagram of the wastewater diversion well (06) of the application;

[0025] Figure 6 is the principle diagram of the wastewater valve control well (02) of the application;

[0026] Figure 7 is the principle diagram of the rainwater valve control well (03) of the application;

[0027] In the figure, (01), fire-fighting accident wastewater collecting well; (02), wastewater valve control well; (03), rainwater valve control well; (04), fire-fighting wastewater ditch; (05), outdoor wastewater pipeline; (06), wastewater shunt well; (07), accident pool; (08), outdoor rainwater pipeline; (09), water strainer; (10), water trap; (11), fire-fighting wastewater pipe; (12), air vent pipe; (13), power piston; (14), spring; (15), working piston; (16), hydraulic oil; (17), hydraulic oil cylinder; (18), hydraulic pipe; (19), transmission rod; (20), restraint; (21), accident pool side valve; (22), rainwater pipeline side valve. DETAILED DESCRIPTION

[0028] The present application provides a kind of chemical library fire-fighting wastewater unpowered control and collection system, to make the purpose, technical scheme and use effect of the present application more clear, definite, the present application is further explained in detail below with reference to the drawings.

[0029] Please refer to Figure 3 and Figure 4 and Figure 5 and Figure 6The chemical warehouse fire accident wastewater unpowered control and collection system provided by the example is characterized in that a fire accident wastewater collection well (01), a wastewater valve control well (02), a rainwater valve control well (03), a fire wastewater ditch (04), an outdoor wastewater pipeline (05), a wastewater diversion well (06), an accident pool (07), an outdoor rainwater pipeline (08), a water strainer (09), a water trap (10), a fire wastewater pipe (11), an air vent pipe (12), a power piston (13), a spring (14), a working piston (15), hydraulic oil (16), a hydraulic oil cylinder (17), a hydraulic pipe (18), a transmission rod (19), an accident pool side valve (20), and a rainwater pipeline side valve (21) are provided.

[0030] See Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 In the example, the fire accident wastewater collection well (01) is a cuboid well chamber, and the effective part has a size of LxBxH=300mmx300mmx500mm. The water strainer (09) is arranged above, and has a size of LxBxH=350mmx350mm.

[0031] See Figure 3 and Figure 4 and Figure 5 and Figure 6And Figure 7 In this example, the fire accident wastewater collection well (01) is provided with a water trap (10) and a fire wastewater pipe (11), both of which have a specification of DN300.

[0032] See Figure 3 And Figure 4 And Figure 5 And Figure 6 And Figure 7 In this example, the wastewater valve control well (02) and the rainwater valve control well (03) are both rectangular well chambers, with effective part dimensions of LxBxH=1700mmx1000mmx500mm. After removing the ineffective part, each well chamber stores the water output of a single fire hydrant for 2.5 minutes.

[0033] See Figure 3 And Figure 4 And Figure 5 And Figure 6 And Figure 7 In this example, the fire accident wastewater collection well (01), the wastewater valve control well (02), and the rainwater valve control well (03) are all made of plastic and are one-piece.

[0034] See Figure 3 And Figure 4 And Figure 5 And Figure 6 And Figure 7 In this example, the wastewater valve control well (02) and the rainwater valve control well (03) are provided with an air vent pipe (12) at the well mouth, and the air vent pipe (12) has a pipe diameter of DN100.

[0035] See Figure 3 And Figure 4 And Figure 5 And Figure 6 And Figure 7 In this example, the water grate (09) is made of cast iron, and the water trap (10) and the fire wastewater pipe (11) are made of U-PVC plastic.

[0036] See Figure 3 And Figure 4 And Figure 5 And Figure 6 And Figure 7 In this example, the power piston (13) and the working piston (15) are made of rigid lightweight plastic and have smooth contact with the well wall without oil leakage.

[0037] See Figure 3 And Figure 4 And Figure 5 And Figure 6 And Figure 7 In this example, the spring (14) has an elastic coefficient greater than 1 and is made of brass with corrosion prevention measures.

[0038] Referring to Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 In this example, the hydraulic fluid (16) is a non-compressible fluid that is freeze resistant.

[0039] Referring to Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 In this example, the hydraulic tube (18) is a rigid plastic.

[0040] Referring to Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 In this example, the drive rod (19) is stainless steel.

[0041] Referring to Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 In this example, the restraint (20) is a rigid plastic that is air permeable.

[0042] Referring to Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 In this example, the sump side valve (20) and the rainwater line side valve (21) are rigid lightweight plastic.

[0043] Referring to Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 In this example, the fire water drain (04) is a finished linear drain, plastic.

[0044] Referring to Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 In this example, the outdoor wastewater line (05) and the outdoor rainwater line (08) are HDPE plastic pipes, and the corresponding shafts are plastic shafts.

[0045] Referring to Figure 6 and Figure 7 and Figure 1 and Figure 2 and Figure 3In this example, the wastewater diversion well (06) is connected to three pipelines, namely the outdoor wastewater pipeline (05), the outdoor rainwater pipeline (08), and the wastewater pipeline connected to the emergency water pool (07).

[0046] Please refer to Figure 4 and Figure 5 and Figure 6 and Figure 7 and ​ In this example, the wastewater diversion well (06) is provided with a valve on the side of the emergency water pool (07) and on the side of the outdoor rainwater pipeline (08).

[0047] Please refer to ​ and ​ and ​ and ​ and ​ In this example, the wastewater diversion well (06) is made of plastic material, modularly assembled, and waterproof measures are taken.

[0048] The chemical warehouse fire accident wastewater unpowered control and collection system described in this example has two working conditions: normal working condition and fire fighting working condition.

[0049] The normal working condition of the chemical warehouse fire accident wastewater unpowered control and collection system described in this example occurs during a period without fire. At this time, the fire accident wastewater collection well (01), the wastewater valve control well (02), and the rainwater valve control well (03) of the chemical warehouse fire accident wastewater unpowered control and collection system are all empty of water, the valve (20) on the side of the emergency water pool in the wastewater diversion well (06) is normally closed, and the valve (21) on the side of the rainwater pipeline is normally open. The entire chemical warehouse fire accident wastewater unpowered control and collection system only functions to drain rainwater around the chemical warehouse. For specific conditions, please refer to ​ and ​ and ​ and ​ ​ and ​ and ​ .

[0050] The chemical warehouse fire accident wastewater non-power control and collection system described in the example has the fire working condition occurring during the period of fire occurrence. After the fire occurs, the ground will produce a large amount of fire-fighting wastewater for a short time due to the operation of the fire hydrant, automatic water spray fire extinguishing and other systems in the chemical warehouse. The fire-fighting wastewater will first flow into the fire accident wastewater collection well (01) arranged in the public area of the chemical storage site through the water grate (09), and then be equally divided into the wastewater valve control well (02), the rainwater valve control well (03) through the water trap (10) and the fire-fighting wastewater pipe (11). When the weight of the fire-fighting wastewater in each control well reaches the design requirement, the power piston (13) in each control well will work under the action of gravity, the power piston (13) will descend and compress the spring (14), the energy will be transmitted to the transmission rod (19) of the corresponding control valve of the wastewater diversion well (06) through the hydraulic oil (16) in the hydraulic oil cylinder (17) and the hydraulic pipe (18), and the system will be converted from the normal working condition to the fire-fighting working condition under the work of the transmission rod (19), that is, the accident pool side valve (20) is opened and the rainwater pipeline side valve (21) is closed. Finally, if the fire continues, once the fire-fighting wastewater in the chemical warehouse overflows, it can be collected by the outdoor wastewater ditch (04) arranged around the chemical warehouse, and finally enters the accident pool (07) through the outdoor wastewater pipeline (05) and the wastewater diversion well (06), without the dangerous consequence of flowing into the outdoor rainwater pipeline (08). For specific conditions, please refer to ​ and ​ and ​ and ​ ​ and ​ and ​ .

[0051] The chemical warehouse fire accident wastewater non-power control and collection system described in the example does not set the function of automatically closing the accident pool side valve (10) and opening the rainwater pipeline side valve (11) after the fire-fighting working condition. This is not because this function cannot be realized, but for safety reasons. After the management personnel confirm that the fire is completely extinguished, the fire-fighting wastewater in the wastewater valve control well (20) and the rainwater valve control well (21) is pumped by manual pumping. After pumping is completed, the power piston (13) in each well chamber will gradually return to its original position under the action of the spring (14), and at the same time, the accident pool side valve (20) and the rainwater pipeline side valve (21) are adjusted to the normal working state, that is, the accident pool side valve (20) in the wastewater diversion well (06) is normally closed, and the rainwater pipeline side valve (21) is normally open.

[0052] The chemical warehouse fire accident wastewater non-power control and collection system described in the example, the entire non-power control system should be subjected to careful stress analysis and calculation to ensure smooth switching between the two working conditions.

[0053] The chemical warehouse fire accident wastewater non-powered control and collection system described in the example uses a mobile pump for pumping, and the collected fire accident wastewater can be sent to an accident pool or a laboratory for water quality analysis.

[0054] The air vent pipe (12) of the chemical warehouse fire accident wastewater non-powered control and collection system described in the example functions to timely discharge excess air in the well during fire working conditions.

[0055] It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and concepts of the present application, and all such changes or replacements shall fall within the protection scope of the present application.

Claims

1. A non-powered control and collection system for fire-fighting wastewater in a chemical warehouse, mainly comprising a fire-fighting wastewater collection well (01), a wastewater valve control well (02), a rainwater valve control well (03), a fire-fighting wastewater ditch (04), an outdoor wastewater pipeline (05), a wastewater diversion well (06), an emergency water tank (07), an outdoor rainwater pipeline (08), a water grate (09), a water trap (10), a fire-fighting wastewater pipe (11), a vent pipe (12), a power piston (13), a spring (14), a working piston (15), hydraulic oil (16), a hydraulic cylinder (17), a hydraulic pipe (18), a transmission rod (19), a constraint (20), an emergency water tank side valve (21), and a rainwater pipeline side valve (22); characterized in that: The fire emergency wastewater collection well (01) is located in the public area of ​​the chemical storage area. A water grate (09) is installed at the wellhead. The bottom of the well is connected to the wastewater valve control well (02) and the rainwater valve control well (03) through a water trap (10) and a fire wastewater pipe (11), respectively. The wellheads of the wastewater valve control well (02) and the rainwater valve control well (03) are respectively equipped with vent pipes (12). The wells are equipped with a power piston (13), a spring (14), hydraulic oil (16), and a hydraulic cylinder (17), respectively. The wastewater diversion well (06) is equipped with an emergency water tank side valve (21) and a rainwater pipeline side valve (22). The emergency water tank side valve (21) is connected to the working piston (15). A control system is formed by the transmission rod (19), hydraulic pipe (18) and wastewater valve control well (02). A control system is formed by the rainwater pipeline side valve (22) through the working piston (15), transmission rod (19), hydraulic pipe (18) and rainwater valve control well (03). A fire wastewater ditch (04) is set up around the chemical warehouse. The fire wastewater ditch (04), outdoor wastewater pipeline (05), wastewater diversion well (06), emergency water tank (07) and outdoor rainwater pipeline (08) together form a chemical warehouse fire accident wastewater collection system. Among them, the fire wastewater ditch (04), outdoor wastewater pipeline (05), wastewater diversion well (06), and emergency water tank (07) are all connected. The outdoor rainwater pipeline (08) is connected in series with the wastewater diversion well (06) on the side; the entire collection system operates in two ways: normal operation and fire-fighting operation; in normal operation, there is no water in the fire-fighting wastewater collection well (01), wastewater valve control well (02), and rainwater valve control well (03) of the chemical warehouse fire-fighting wastewater non-powered control and collection system, and the valve (21) on the side of the emergency water tank in the wastewater diversion well (06) is normally closed and the valve (22) on the side of the rainwater pipeline is normally open; in fire-fighting operation, the fire-fighting wastewater will first flow through the grate (09) into the fire-fighting wastewater collection well (01) set in the public area of ​​the chemical storage area, and then through the water trap ( 10) Fire wastewater pipe (11) flows into wastewater valve control well (02) and rainwater valve control well (03) in equal proportion. When the weight of fire wastewater in each control well reaches the design requirements, it will do work on the power piston (13) in each control well under the action of gravity. The power piston (13) descends and compresses the spring (14). The energy is transmitted to the transmission rod (19) of the corresponding control valve of the wastewater diversion well (06) through the hydraulic oil (16) in the hydraulic cylinder (17) and hydraulic pipe (18). Under the operation of the transmission rod (19), the system is transformed from normal working condition to fire working condition, that is, the valve (21) on the side of the emergency water tank is opened and the valve (22) on the side of the rainwater pipeline is closed.

2. The non-powered control and collection system for fire-fighting wastewater in a chemical warehouse as described in claim 1, characterized in that: The fire accident wastewater collection well (01) is a prefabricated integrated well chamber, and the material is including but not limited to plastic.

3. The non-powered control and collection system for fire-fighting wastewater in a chemical warehouse as described in claim 1, characterized in that: The contact area between the power piston (13) inside the wastewater valve control well (02) and the well wall is smooth, sealed, and leak-proof.

4. The non-powered control and collection system for fire-fighting wastewater in a chemical warehouse as described in claim 1, characterized in that: The contact area between the power piston (13) inside the rainwater valve control well (03) and the well wall is smooth, sealed, and leak-proof.

5. The non-powered control and collection system for fire-fighting wastewater in a chemical warehouse as described in claim 1, characterized in that: The wastewater diversion well (06) is a prefabricated integrated well chamber made of materials including but not limited to plastic. It is equipped with two sets of valves, one set located on one side of the emergency water tank (07) and the other set located on one side of the rainwater pipeline (08).

6. The non-powered control and collection system for fire-fighting wastewater in a chemical warehouse as described in claim 1, characterized in that: The constraint (20) is made of a breathable rigid material.

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