Automatic water replenishing explosion-proof diesel engine water washing tank

Abstract

The utility model discloses an automatic water replenishing explosion-proof diesel engine water washing tank which comprises a water washing tank and a water replenishing tank, the water replenishing tank is arranged on the water washing tank to seal the water washing tank, and a buffer cavity and a water storage cavity are arranged in the water replenishing tank. The water replenishing valve is mounted between the buffer cavity and the water storage cavity and can respond quickly and be opened automatically, so that water in the water storage cavity flows into the rinsing bath to accurately replenish the required water quantity, and continuous and stable operation of the equipment is ensured; the buffer cavity effectively isolates the washing tank from the water replenishing valve, potential influence of insoluble alkane particles in the washing tank on the water replenishing valve is prevented, normal closing of the water replenishing valve is guaranteed, and the reliability and durability of the equipment are further enhanced; and meanwhile, the water replenishing valve is installed outside the water replenishing tank, so that the compactness of the equipment is improved, and the replacement and maintenance difficulty of quick-wear parts is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to an automatic water replenishing explosion-proof diesel engine water washing tank. Background Art

[0002] Water washing tanks are widely used in the field of explosion-proof diesel engine tail gas treatment. The water in the water washing tank will evaporate and disperse along with the purified tail gas. At present, an automatic water replenishing scheme combining a float valve and a water replenishing tank is mainly used. The float valve device is installed inside the water washing tank and is connected to an external water replenishing tank through a pipeline. The float valve automatically opens and closes according to the water level change to maintain the liquid level in the water washing tank.

[0003] Although this structure is simple and effective, it also has significant defects, mainly reflected in two aspects: First, since the waste water contains insoluble alkane particles, these particles are easy to accumulate in the water washing tank and adsorb on the sealing component of the float valve, resulting in the valve being unable to close normally. Second, in order to ensure the stable operation of the float valve in a high-temperature environment, a float ball made of metal material and a hard seal structure are adopted. In order to make the float ball have enough buoyancy to overcome its own weight, the size of the float ball increases, which then puts higher requirements on the design of the water washing tank, including increasing the internal space to accommodate the large float valve assembly, thus affecting the overall compactness and efficiency of the water washing tank, and at the same time increasing the manufacturing cost and maintenance difficulty. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above technical deficiencies and propose an automatic water replenishing explosion-proof diesel engine water washing tank to make up for the defects proposed in the background art.

[0005] To achieve the above technical purpose, the technical solution of the utility model provides an automatic water replenishing explosion-proof diesel engine water washing tank, which includes a water washing tank and a water replenishing tank. The water replenishing tank is arranged on the water washing tank to seal it. A sewage valve is arranged at the bottom of the water washing tank. An air inlet pipe and an exhaust pipe are arranged on the water washing tank. The lower end of the air inlet pipe extends to the bottom of the water washing tank. A water inlet pipe is arranged on the water replenishing tank. A water inlet valve is arranged on the water inlet pipe. A water replenishing pipe communicated with the water replenishing tank is arranged at the bottom of the water replenishing tank. The lower part of the water replenishing pipe is a bent pipe with a horizontal end, and the end of the water replenishing pipe is below the working liquid level of the water washing tank.

[0006] Furthermore, a liquid level monitoring device is arranged inside the water washing tank. The water inlet valve is an electromagnetic valve. The water inlet valve is electrically connected to the liquid level monitoring device through a control circuit. The control circuit controls the opening and closing of the water inlet valve through the feedback signal of the liquid level monitoring device, so that the end of the water replenishing pipe is kept below the working liquid level of the water washing tank.

[0007] Further, a horizontal partition is provided inside the water replenishing tank. The horizontal partition divides the interior of the water replenishing tank into an exhaust cavity and a water replenishing cavity. A plurality of air pipes are provided in the water replenishing cavity. The air pipes connect the exhaust cavity with the water washing tank. The air inlet pipe and the exhaust pipe are both provided on the water replenishing tank. The air inlet pipe penetrates through the exhaust cavity and the water replenishing cavity. The exhaust pipe is communicated with the exhaust cavity. The water inlet pipe is communicated with the water replenishing cavity.

[0008] Further, a vertical partition is provided in the water replenishing cavity. The vertical partition divides the water replenishing cavity into a buffer cavity and a water storage cavity. The water inlet pipe is communicated with the water storage cavity. The buffer cavity and the water storage cavity are communicated through a connecting pipe. A water replenishing valve is provided on the connecting pipe. A liquid level monitoring device is provided in the water washing tank. The water replenishing valve is an electromagnetic valve. The water replenishing valve is electrically connected to the liquid level monitoring device through a control circuit. The control circuit controls the opening and closing of the water replenishing valve through the feedback signal of the liquid level monitoring device.

[0009] Further, a ventilation pipe communicated with the water storage cavity is provided on the water replenishing tank.

[0010] Compared with the prior art, the beneficial effects of the present utility model include:

[0011] 1. By providing a buffer cavity and a water storage cavity inside the water replenishing tank, when the working liquid level in the water washing tank drops, the water replenishing valve installed between the buffer cavity and the water storage cavity can quickly respond and automatically open, enabling the water in the water storage cavity to flow into the water washing tank to accurately supplement the required water volume, ensuring the continuous and stable operation of the equipment; the buffer cavity effectively isolates the water washing tank from the water replenishing valve, preventing the potential impact of insoluble alkane particles in the water washing tank on the water replenishing valve, ensuring the normal closing of the water replenishing valve, and further enhancing the reliability and durability of the equipment; at the same time, installing the water replenishing valve outside the water replenishing tank not only improves the compactness of the equipment but also reduces the difficulty of replacing and maintaining vulnerable parts.

[0012] 2. By providing a water washing tank and a water replenishing tank, the temperature of the exhaust gas is significantly reduced after contacting with water in the water washing tank, and the complete extinction of sparks is ensured, making the discharged exhaust gas meet strict explosion-proof standards; in addition, during the process of the exhaust gas flowing through the air pipes provided in the water replenishing tank, through heat exchange with the water body in the water replenishing tank, the exhaust temperature is further reduced, thereby improving the explosion-proof effect of the engine exhaust gas. Description of the Drawings

[0013] Figure 1 is a schematic diagram of an automatic water replenishing explosion-proof diesel engine water washing tank provided by the present utility model;

[0014] Figure 2 is a sectional view of the water replenishing tank of an automatic water replenishing explosion-proof diesel engine water washing tank provided by the present utility model.

[0015] In the figure: make-up water tank 1, water washing tank 2, intake pipe 3, exhaust pipe 4, water inlet pipe 5, vent pipe 6, sewage drain valve 7, horizontal partition 8, exhaust cavity 9, water storage cavity 10, air pipe 11, vertical partition 12, buffer cavity 13, make-up water pipe 14, connecting pipe 15, make-up water valve 16, water inlet valve 17. Detailed implementation mode

[0016] In order to make the purpose, technical solution and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0017] Refer to Figure 1 , Figure 2 , the present utility model provides an automatic water replenishing explosion-proof diesel engine water washing tank, which includes a water washing tank 2 and a make-up water tank 1. The make-up water tank 1 is installed above the water washing tank 2 and seals it. A sewage drain valve 7 is installed at the bottom of the water washing tank 2 for discharging waste water and pollutants. An intake pipe 3 and an exhaust pipe 4 are installed on the make-up water tank 1. The lower end of the intake pipe 3 extends to the bottom of the water washing tank 2 to ensure that the exhaust gas is in full contact with water for washing.

[0018] A horizontal partition 8 is installed in the make-up water tank 1. The horizontal partition 8 divides the make-up water tank 1 into upper and lower parts. A vertical partition 12 and several air pipes 11 are arranged between the horizontal partition 8 and the bottom of the make-up water tank 1. The air pipes 11 connect the water washing tank 2 with the upper part of the horizontal partition 8. The vertical partition 12 divides the space between the horizontal partition 8 and the bottom of the make-up water tank 1 into a buffer cavity 13 and a water storage cavity 10. An intake pipe 5 and a vent pipe 6 communicating with the water storage cavity 10 are installed at the top of the make-up water tank 1. A water inlet valve 17 is installed on the intake pipe 5. The buffer cavity 13 and the bottom of the water storage cavity 10 are connected through a connecting pipe 15. In this embodiment, the connecting pipe 15 is installed on the outer side wall of the make-up water tank 1, and a make-up water valve 16 is installed on the connecting pipe 15; a make-up water pipe 14 is installed at the bottom of the buffer cavity 13. The lower part of the make-up water pipe 14 is a bent pipe with a horizontal end. During operation, the end of the make-up water pipe 14 is below the working liquid level of the water washing tank 2. The space between the horizontal partition 8 and the top of the make-up water tank 1 is an exhaust cavity 9, and the exhaust pipe 4 communicates with the exhaust cavity 9.

[0019] During operation: the exhaust gas contacts the water in the water washing tank 2 to reduce the temperature and extinguish the sparks, and then is collected in the exhaust cavity 9 by the air pipes 11 and discharged by the exhaust pipe 4. During the process of the exhaust gas flowing through the air pipes 11, it exchanges heat with the water in the buffer cavity 13 and the water storage cavity 10, so as to further reduce the exhaust temperature;

[0020] The water replenishing valve 16 is a solenoid valve and is normally closed. At this time, the water in the buffer chamber 13 is kept inside under the action of atmospheric pressure. When the working liquid level in the water washing tank 2 drops, the liquid level sensor installed therein outputs a signal to the control circuit, and the control circuit outputs an opening signal to the water replenishing valve 16 to open it. The water in the buffer chamber 13 flows into the water washing tank 2 under the action of gravity to raise its working liquid level. At the same time, the water in the water storage chamber 10 flows into the buffer chamber 13 through the connecting pipe 15 to supplement the water flowing out, so as to keep the water volume inside constant. After the water replenishment is completed, the water replenishing valve 16 closes and the buffer chamber 13 stops injecting water into the water washing tank 2;

[0021] If the water replenishing valve 16 cannot be opened normally due to a system failure, when the liquid level in the water washing tank 2 is lower than the end of the water replenishing pipe 14, the water in the buffer chamber 13 automatically flows out under the action of gravity and automatically stops when the liquid level in the water washing tank 2 is higher than the end of the water replenishing pipe 14; thus ensuring that the equipment can still operate normally and improving the overall stability of the equipment.

[0022] The buffer chamber 13 isolates the water washing tank 2 from the water replenishing valve 16, and the water in the buffer chamber 13 and the water washing tank 2 only flows in one direction, effectively preventing insoluble alkane particles in the water washing tank 2 from accumulating and adsorbing on the blocking component of the water replenishing valve 16, ensuring that the valve closes normally. At the same time, since the control component is arranged outside the water washing tank 2, it not only improves the overall compactness of the water washing tank, but also reduces the difficulty of replacing and maintaining vulnerable parts.

[0023] The water inlet valve 17 is connected to an external water source, and can supplement water into the water storage chamber 10 regardless of whether the equipment is in a working state, thus ensuring the continuous operation of the equipment and extending the maintenance cycle.

[0024] The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An automatic water replenishment explosion-proof diesel engine water washing tank, comprising a water washing tank and a water replenishment tank, wherein the water replenishment tank is arranged on the water washing tank to seal it, a sewage valve is arranged at the bottom of the water washing tank, an air intake pipe and an exhaust pipe are arranged on the water washing tank, wherein the lower end of the air intake pipe extends to the bottom of the water washing tank, and is characterized in that: The water replenishment tank is provided with a water inlet pipe, the water inlet pipe is provided with a water inlet valve, the bottom of the water replenishment tank is provided with a water replenishment pipe connected thereto, the lower part of the water replenishment pipe is a curved pipe with a horizontal end, and the end of the water replenishment pipe is below the working liquid level of the washing tank.

2. The automatic water-filling explosion-proof diesel engine washing tank according to claim 1 is characterized by: A liquid level monitoring device is provided in the water washing tank. The water inlet valve is a solenoid valve. The water inlet valve is electrically connected to the liquid level monitoring device through a control circuit. The control circuit controls the opening and closing of the water inlet valve through a feedback signal of the liquid level monitoring device, so that the end of the water supply pipe is kept below the working liquid level of the water washing tank.

3. The automatic water-filling explosion-proof diesel engine washing tank according to claim 1 is characterized by: A horizontal partition is arranged in the water replenishment tank, and the horizontal partition divides the interior of the water replenishment tank into an exhaust chamber and a water replenishment chamber. A plurality of air pipes are arranged in the water replenishment chamber, and the air pipes connect the exhaust chamber with the water washing tank. The air inlet pipe and the exhaust pipe are both arranged on the water replenishment tank, and the air inlet pipe passes through the exhaust chamber and the water replenishment chamber, and the exhaust pipe is connected with the exhaust chamber, and the water inlet pipe is connected with the water replenishment chamber.

4. The automatic water-filling explosion-proof diesel engine washing tank according to claim 3 is characterized by: A vertical partition is arranged in the water replenishment chamber, and the vertical partition divides the water replenishment chamber into a buffer chamber and a water storage chamber. The water inlet pipe is connected with the water storage chamber, and the buffer chamber and the water storage chamber are connected through a connecting pipe. A water replenishment valve is arranged on the connecting pipe. A liquid level monitoring device is arranged in the water washing tank. The water replenishment valve is a solenoid valve, and the water replenishment valve is electrically connected to the liquid level monitoring device through a control circuit. The control circuit controls the opening and closing of the water replenishment valve through a feedback signal of the liquid level monitoring device.

5. The automatic water-filling explosion-proof diesel engine washing tank according to claim 4 is characterized by: The water replenishing tank is provided with a ventilation pipe which is in communication with the water storage cavity.

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