Double-circulation mist bath dust remover

Abstract

The invention discloses a double-circulation fog bath dust remover which comprises a collecting box, a supporting plate is installed on the outer wall of one side of the collecting box through bolts, water pumps are installed on the outer walls of the two sides of the top of the supporting plate through bolts, a dust removing box is installed on the outer wall of one side of the top of the collecting box through bolts, and the dust removing box and the collecting box are communicated with each other; two side spray heads are inserted into the outer walls of the two sides of the dust removal box, four upper spray heads are inserted into the outer wall of one side of the top of the dust removal box, one ends of the upper spray heads and the side spray heads are connected with one water pump through pipelines, and a plurality of porous baffle plates are mounted on the two sides of the inner wall of the dust removal box through bolts; the porous baffle plates distributed in the dust removal box in a staggered manner can prolong a dust-containing airflow path and enhance collision adsorption of water mist and particles, cyclone blades of the cyclone washing box can realize gas-liquid-solid three-phase separation through centrifugal force, the dust capture rate is greatly improved, the dust removal rate can be greatly improved through the synergistic effect of the two, and the dust removal efficiency is greatly improved. The system is superior to a single-stage dust removal system.

Description

Technical Field

[0001] The present invention relates to the technical field of dust treatment, and particularly to a double-cycle mist bath dust collector. Background Art

[0002] In the surging tide of industrial production, dust pollution is like a thick haze that has long shrouded and troubled many enterprises. Especially in industries with high dust generation such as coal mines, coal-fired power plants, and coal chemical industries, the wanton generation of a large amount of dust during the production process cannot be underestimated in terms of its harm. Nowadays, against the backdrop of the increasing global environmental awareness and the tightening of environmental protection standards, for enterprises to develop sustainably and steadily, there is an urgent need to find efficient and environmentally friendly dust removal solutions. It is precisely under such a pressing demand that the mist bath dust collector has emerged like a bright star, becoming an ideal choice in the field of industrial dust treatment with its excellent performance, remarkable economic benefits, and environmental protection advantages.

[0003] The energy-saving dust removal system of the material conveying system involves equipment fields such as coal mines, power plants, and ports. This energy-saving dust removal system is used to handle the situation where when the upper belt conveyor transports materials to the lower belt conveyor through a coal dropping pipe during the material transportation process, due to the height difference and speed, a relatively high pressure is generated at the lower belt conveyor. Under the action of the high pressure, a gas-dust mixture is generated, which diffuses in the air under the pressure and pollutes the environment. The double-cycle mist bath dust collector, through the action of the fan, guides and collects the dust-containing air flow into the dust removal box and the swirl washing box, effectively removes the dust, and discharges the clean gas. The collected dust is conveyed back to the belt conveyor system through the scraper conveyor to complete the collection and recycling of the dust. As the dust removal medium, water undergoes natural sedimentation and filtration in the sewage collection box. The upper clarified liquid returns to the upper part of the dust removal box through the water pump and to the upper nozzles of the swirl washing box through the side nozzles for spray dust removal. It combines with the dust to form sewage that flows into the sewage collection box, thus forming a recycling. Summary of the Invention

[0004] The purpose of the present invention is to provide a double-cycle mist bath dust collector to solve the above-mentioned deficiencies in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] Double - cycle fog - bath dust collector, including a collection box. One outer wall of the collection box is bolted with a support plate, and water pumps are bolted on both outer walls at the top of the support plate. One outer wall at the top of the collection box is bolted with a dust removal box, and the dust removal box communicates with the collection box. Two side spray nozzles are inserted into both outer walls of the dust removal box, and four upper spray nozzles are inserted into one outer wall at the top of the dust removal box. One end of the upper spray nozzles and the side spray nozzles is connected to one of the water pumps through a pipeline. A plurality of porous baffle plates are bolted on both inner walls of the dust removal box, and the plurality of porous baffle plates are staggered. A plurality of cyclone washing boxes are bolted on one outer wall at the top of the collection box, and a water - vapor separation box is bolted between the tops of the plurality of cyclone washing boxes. The cyclone washing box includes a separation cylinder. Two cyclone vanes distributed in an up - and - down structure are bolted inside the separation cylinder. One side of the inner wall of the separation cylinder is inserted with a water delivery pipe, and the water delivery pipe is connected to one of the water pumps through a pipeline. One end of the water delivery pipe is threadedly connected with a porous spray head.

[0007] Further, a support is bolted on one outer wall at the top of the collection box, and the bottom end of the support is bolted on one outer wall of the water - vapor separation box. A blower is bolted on one outer wall at the top of the support.

[0008] Further, a purification box is bolted at the top end of the water - vapor separation box, and the purification box communicates with the water - vapor separation box.

[0009] Further, the purification box includes a box shell, and an exhaust hole is opened on one outer wall of the box shell.

[0010] Further, two legs are bolted on both outer walls at the bottom of the collection box, and a scraper conveyor is bolted at the bottom end of the collection box.

[0011] Further, the scraper conveyor includes a body module. Two driving sprockets are installed inside the body module through bearings, and a scraper chain is wound between the two driving sprockets. A driving module is bolted on one outer wall of the body module, and the driving module is in transmission connection with one of the driving sprockets. An outlet is opened on one outer wall of the body module.

[0012] Further, the water - vapor separation box includes a separation box. A water - vapor hollow - ball separation structure is bolted inside the separation box, and a plurality of installation openings are opened on one outer wall of the separation box. The top end of the separation cylinder is bolted inside the installation opening.

[0013] Further, a connection port one is opened on one outer wall at the top of the collection box, and the dust removal box communicates with the collection box through the connection port one.

[0014] Further, connection ports two are formed in the outer walls of the other two sides of the top of the collection box, and the bottom end of the separation cylinder is installed inside the connection port two through bolts.

[0015] Further, a connection pipeline is inserted into one side of the inner wall of the collection box, and both ends of the connection pipeline are communicated with the two water pumps respectively.

[0016] In the above technical solution, the double-circulation fog bath dust collector provided by the present invention has the following beneficial effects:

[0017] (1) The porous baffle plates distributed in a staggered manner inside the dust removal box of the present invention can extend the path of the dust-containing air flow, enhance the collision and adsorption between the water mist and the particles, and the swirl vanes of the swirl washing box can achieve the three-phase separation of gas, liquid and solid through centrifugal force, greatly improving the dust collection rate. The cooperation of the two can greatly improve the dust removal rate, which is superior to the single-stage dust removal system.

[0018] (2) The side spray heads and the upper spray heads designed by the present invention, the combination of the four side spray heads and the four upper spray heads can achieve 360° dead-angle-free atomization coverage, eliminate the "gas film barrier" problem of traditional single-side spraying, enhance the atomization dust removal effect, and the water sprayed by the side spray heads can wash the inner wall of the dust removal box to prevent ash accumulation and scaling.

[0019] (3) Through the full mixing of gas and liquid, the integration of multi-stage purification modules and the design of automatic operation and maintenance, the present invention solves the problems of low efficiency, high water consumption and difficult maintenance of traditional wet dust collectors, has significant technical advancement and market competitiveness. At the same time, the double-circulation design of the present invention reduces the power of the water pump and the fan, solves the problems of low efficiency, high water consumption and difficult maintenance of traditional wet dust collectors, has significant technical advancement and market competitiveness, and the resistance suffered by the movement of the dust-containing gas during the dust removal process is extremely small or there is no resistance, strengthening the energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the double-circulation fog bath dust collector of the present invention.

[0022] Figure 2 It is a schematic diagram of the planar structure of the scraper provided by an embodiment of the double-circulation fog bath dust collector of the present invention.

[0023] Figure 3 It is a schematic diagram of the planar structure of the dust removal box provided by an embodiment of the double-circulation fog bath dust collector of the present invention.

[0024] Figure 4 Schematic three-dimensional structure diagram of the cyclone washing tank provided for the embodiment of the double-cycle mist bath dust collector of the present invention.

[0025] Figure 5 Schematic structure diagram of the water-vapor separation tank provided for the embodiment of the double-cycle mist bath dust collector of the present invention.

[0026] Figure 6 Top view of the purification tank structure provided for the embodiment of the double-cycle mist bath dust collector of the present invention.

[0027] Figure 7 Schematic structure diagram of the collection tank provided for the embodiment of the double-cycle mist bath dust collector of the present invention.

[0028] Description of reference numerals:

[0029] 1, support leg; 2, collection tank; 3, scraper conveyor; 4, support plate; 5, water pump; 6, dust removal tank; 7, water-vapor separation tank; 8, cyclone washing tank; 9, purification tank; 10, support; 11, blower; 12, fuselage module; 13, drive sprocket; 14, scraper chain; 15, drive module; 16, discharge port; 17, porous baffle; 18, upper spray head; 19, side spray head; 20, separation cylinder; 21, cyclone vane; 22, separation tank; 23, porous spray head; 24, water delivery pipe; 25, installation port; 26, water-vapor hollow sphere separation structure; 27, tank shell; 28, exhaust hole; 29, connection port 1; 30, connection port 2; 31, connection pipeline. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0031] As Figure 1-7As shown in the figure, the double-cycle fog bath dust collector provided by the embodiment of the present invention includes a collection box 2. On one outer wall of the collection box 2, a support plate 4 is installed by bolts. On both outer walls of the top of the support plate 4, water pumps 5 are installed by bolts. On one outer wall of the top of the collection box 2, a dust removal box 6 is installed by bolts, and the dust removal box 6 is interconnected with the collection box 2. Two side spray heads 19 are inserted into both outer walls of the dust removal box 6. Four upper spray heads 18 are inserted into one outer wall of the top of the dust removal box 6. One end of the upper spray heads 18 and the side spray heads 19 is connected to one of the water pumps 5 through a pipeline. On both inner walls of the dust removal box 6, a plurality of porous baffle plates 17 are installed by bolts, and the plurality of porous baffle plates 17 are distributed in a staggered manner. On one outer wall of the top of the collection box 2, a plurality of cyclone washing boxes 8 are installed by bolts. Between the tops of the plurality of cyclone washing boxes 8, a water vapor separation box 7 is installed by bolts. The cyclone washing box 8 includes a separation cylinder 20. Inside the separation cylinder 20, two cyclone vanes 21 are installed by bolts in an up-and-down structure. On one side of the inner wall of the separation cylinder 20, a water delivery pipe 24 is inserted, and the water delivery pipe 24 is connected to one of the water pumps 5 through a pipeline. One end of the water delivery pipe 24 is threadedly connected with a porous spray head 23.

[0032] Specifically, in this embodiment, it includes a collection box 2. On one outer wall of the collection box 2, a support plate 4 is installed by bolts. On both outer walls of the top of the support plate 4, water pumps 5 are installed by bolts. The model of the water pump 5 is preferably FL-2202A. On one outer wall of the top of the collection box 2, a dust removal box 6 is installed by bolts, and the dust removal box 6 communicates with the collection box 2. Two side spray nozzles 19 are inserted into both outer walls of the dust removal box 6, and four upper spray nozzles 18 are inserted into one outer wall of the top of the dust removal box 6. One of the water pumps 5 will start and draw clear water from the collection box 2 or the outside. The clear water will then flow into the side spray nozzles 19 and the upper spray nozzles 18 through pipes. The combination of the four side spray nozzles 19 and the four upper spray nozzles 18 can achieve 360° dead-angle-free atomization coverage, eliminating the "gas film barrier" problem of traditional single-side spraying. One end of the upper spray nozzles 18 and the side spray nozzles 19 is connected to one of the water pumps 5 through pipes. On both inner walls of the dust removal box 6, a plurality of porous baffle plates 17 are installed by bolts. When dust removal is carried out inside the dust removal box 6, the waste gas will cause turbulent flow through the porous baffle plates 17. The water mist and the dust-containing gas will collide and impact to mix and adsorb the dust in the air to make it moist. Then, the moist gas will flow down as sewage after colliding with the inner wall of the dust removal box 6. The air after dust removal will flow into the collection box 2. The plurality of porous baffle plates 17 are staggered. On one outer wall of the top of the collection box 2, a plurality of cyclone washing boxes 8 are installed by bolts. Between the tops of the plurality of cyclone washing boxes 8, a water-vapor separation box 7 is installed by bolts. The cyclone washing box 8 includes a separation cylinder 20. Inside the separation cylinder 20, two cyclone vanes 21 distributed in an up-and-down structure are installed by bolts. One side of the inner wall of the separation cylinder 20 is inserted with a water delivery pipe 24, and the water delivery pipe 24 is connected to one of the water pumps 5 through a pipe. One end of the water delivery pipe 24 is threadedly connected with a porous spray head 23. When the gas enters the middle cyclone washing box 8, the cyclone vanes 21 in the cyclone washing box 8 will make the gas into a swirling air flow. The dust-containing gas and the water mist will be thrown to the wall by centrifugal force to form a water film. Another water pump 5 will start, and the porous spray head 23 arranged in the upper part of the cyclone washing box 8 will spray water mist. The water mist will wash the dust-containing gas from top to bottom to remove the dust contained in the gas again.

[0033] In the double-cycle mist bath dust collector provided by the present invention, the porous baffle plates 17 staggered inside the dust removal box 6 can extend the path of the dust-containing air flow and enhance the collision and adsorption between the water mist and the particles. The cyclone vanes 21 of the cyclone washing box 8 can achieve the three-phase separation of gas, liquid and solid through centrifugal force, greatly improving the dust capture rate. The double-cycle cooperation of the two can greatly improve the dust removal rate, which is better than the single-stage dust removal system.

[0034] In one embodiment provided by the present invention, as Figure 1As shown in the figure, a bracket 10 is installed on the outer wall of one side of the top of the collection box 2 through bolts, and the bottom end of the bracket 10 is installed on the outer wall of one side of the water vapor separation box 7 through bolts. A blower 11 is installed on the outer wall of one side of the top of the bracket 10 through bolts. The model of the blower 11 is preferably the FLJ air mold blower industrial frequency centrifugal blower. When the blower 11 is started, the purification box 9, the water vapor separation box 7, the cyclone washing box 8, etc. will be in a negative pressure state, which will cause the air carrying dust from the outside to quickly flow into the dust removal box 6.

[0035] In another embodiment provided by the present invention, as Figure 1 and Figure 6 As shown in the figure, a purification box 9 is installed on the top end of the water vapor separation box 7 through bolts, and the purification box 9 and the water vapor separation box 7 communicate with each other. The purification box 9 includes a box shell 27, and an exhaust hole 28 is opened on the outer wall of one side of the box shell 27. After the separation is completed, the separated air will enter the purification box 9, and then the air will be discharged into the outside air through the exhaust hole 28.

[0036] In still another embodiment provided by the present invention, as Figure 1 and Figure 2 As shown in the figure, two legs 1 are installed on the outer walls of both sides of the bottom of the collection box 2 through bolts. A scraper conveyor 3 is installed at the bottom end of the collection box 2 through bolts. The scraper conveyor 3 includes a fuselage module 12. Two driving sprockets 13 are installed inside the fuselage module 12 through bearings, and a scraper chain 14 is wound between the two driving sprockets 13. A driving module 15 is installed on the outer wall of one side of the fuselage module 12 through bolts, and the driving module 15 is in transmission connection with one of the driving sprockets 13. An outlet 16 is opened on the outer wall of one side of the fuselage module 12. When the driving module 15 is started, the driving module 15 will drive one of the driving sprockets 13 to rotate. The driving sprocket 13 will drive the scraper chain 14 to move. The scraper chain 14 will transport the sludge above the fuselage module 12, and the separated sludge will flow out from the outlet 16. The water part is pumped up by the water pump 5 and continues to circulate upward.

[0037] In still another embodiment provided by the present invention, as Figure 5 As shown in the figure, the water vapor separation box 7 includes a separation box 22. A water vapor hollow ball separation structure 26 is installed inside the separation box 22 through bolts. The air that has undergone centrifugation and washing will flow into the water vapor separation box 7. The water vapor hollow ball separation structure 26 in the water vapor separation box 7 will separate the water and air from the air. After the separation is completed, the separated air will enter the purification box 9. And a plurality of installation openings 25 are opened on the outer wall of one side of the separation box 22. The top end of the separation cylinder 20 is installed inside the installation opening 25 through bolts.

[0038] In still another embodiment provided by the present invention, as Figure 3As shown, on one side of the outer wall at the top of the collection box 2, a first connection port 29 is provided. The dust removal box 6 communicates with the collection box 2 through the first connection port 29. On the outer walls of the other two sides at the top of the collection box 2, second connection ports 30 are provided. The bottom end of the separation cylinder 20 is bolted inside the second connection ports 30. One side of the inner wall of the collection box 2 is plugged with a connecting pipeline 31, and both ends of the connecting pipeline 31 are respectively communicated with the two water pumps 5. The bottom end of the connecting pipeline 31 is threadedly connected with a filter screen cover, and the filter screen cover can prevent impurities such as sludge from entering the inside of the connecting pipeline 31.

[0039] Working principle: When applying this device, the blower 11 can be operated to start. The startup of the blower 11 causes the purification box 9, the water-vapor separation box 7, the cyclone washing box 8, etc. to be in a negative pressure state, which enables the air carrying dust from the outside to quickly flow into the dust removal box 6. When the air carrying dust enters the dust removal box 6, one of the water pumps 5 will start, pumping the clear water in the collection box 2 or from the outside. Subsequently, the clear water will flow into the side nozzles 19 and the upper nozzles 18 through the pipeline. The combination of the four side nozzles 19 and the four upper nozzles 18 can achieve 360° dead-angle-free atomization coverage, eliminating the "gas film barrier" problem of traditional single-sided spraying. When dust removal is carried out inside the dust removal box 6, the waste gas will cause turbulent flow through the porous baffle 17. The water mist collides with the dust-containing gas and adsorbs the dust in the air through mixing, making it wet. Then, the wet gas will flow down after colliding with the inner wall of the dust removal box 6 and accumulate into sewage on the inner wall. The air after dust removal will flow into the collection box 2, and then into the cyclone washing box 8. The cyclone washing box 8 will centrifuge and wash the air. In this process, the gas enters the middle cyclone washing box 8, and the cyclone blades 21 in the cyclone washing box 8 will make the gas into a rotating air flow. The dust-containing gas and water mist are thrown to the wall by centrifugal force to form a water film. Another water pump 5 will start, causing the porous spray head 23 arranged in the upper part of the cyclone washing box 8 to spray water mist. The water mist will wash the dust-containing gas from top to bottom to remove the dust contained in the gas again. The sewage generated in the process will flow down. The air after centrifugation and washing will flow into the water-vapor separation box 7. The water-vapor hollow ball separation structure 26 in the water-vapor separation box 7 will separate the water and gas in the air. After the separation, the separated air will enter the purification box 9, and the air will be discharged through the exhaust holes 28 into the outside air. During the dust removal process in the dust removal box 6, the sewage generated by atomization will flow into the collection box 2 through the connection port 1 29. The sewage generated by centrifugation and washing in the cyclone washing box 8 and the sewage separated in the water-vapor separation box 7 will also flow into the collection box 2 through the connection port 2 30. After standing for a period of time, the sludge and water will be stratified. Subsequently, the driving module 15 is started. The driving module 15 will drive one of the driving sprockets 13 to rotate. The driving sprocket 13 will drive the scraper chain 14 to move. The scraper chain 14 will transport the sludge above the fuselage module 12, and the separated sludge will flow out from the discharge port 16 into the external belt conveyor. In this process, the water that is transported up by the scraper 3 together with the slime will flow down and enter the collection box 2, and the mud will also be naturally dewatered. The water part is pumped up by the water pump 5 and goes up for continuous circulation. Subsequently, the water pump 5 is started. The water pump 5 can extract the sewage inside the collection box 2 through the connecting pipeline 31 and then input it into the side nozzles 19 and the upper nozzles 18 to participate in atomization dust removal. During this process, the filter cover at the bottom end of the connecting pipeline 31 can prevent impurities such as sludge from entering the inside of the connecting pipeline 31. During this dust removal process, the movement of the dust-containing gas is relatively smooth, and the energy-saving effect is greatly improved.

[0040] Only certain exemplary embodiments of the present invention have been described above by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A double-circulation mist bath dust collector, comprising a collecting box (2), characterized in that: A support plate (4) is installed on one side outer wall of the collection box (2) by bolts, and water pumps (5) are installed on both sides outer walls of the top of the support plate (4) by bolts, a dust removal box (6) is installed on one side outer wall of the top of the collection box (2) by bolts, and the dust removal box (6) and the collection box (2) are connected to each other, two side nozzles (19) are plugged into the two side outer walls of the dust removal box (6), four upper nozzles (18) are plugged into the one side outer wall of the top of the dust removal box (6), and one end of the upper nozzle (18) and the side nozzle (19) are connected to one of the water pumps (5) through a pipeline, and a plurality of porous baffles (19) are installed on both sides of the inner wall of the dust removal box (6) by bolts. 7), and a plurality of porous baffles (17) are staggeredly distributed, a plurality of cyclone washing boxes (8) are bolted to the outer wall of one side of the top of the collecting box (2), and a water vapor separation box (7) is bolted between the tops of the plurality of cyclone washing boxes (8), the cyclone washing box (8) comprises a separation cylinder (20), two cyclone blades (21) in an upper and lower structure are bolted inside the separation cylinder (20), a water pipe (24) is inserted into one side of the inner wall of the separation cylinder (20), and the water pipe (24) is connected to one of the water pumps (5) through a pipeline, and one end of the water pipe (24) is threadedly connected to a porous spray head (23).

2. The double-circulation mist bath dust collector according to claim 1, characterized in that: A bracket (10) is installed on the outer wall of one side of the top of the collection box (2) by means of bolts, and the bottom end of the bracket (10) is installed on the outer wall of one side of the water vapor separation box (7) by means of bolts, and a blower (11) is installed on the outer wall of one side of the top of the bracket (10) by means of bolts.

3. The double-circulation mist bath dust collector according to claim 1, characterized in that: A purification box (9) is installed on the top of the water vapor separation box (7) by means of bolts, and the purification box (9) and the water vapor separation box (7) are interconnected.

4. The double-circulation mist bath dust collector according to claim 3 is characterized in that: The purification box (9) comprises a box shell (27), and an exhaust hole (28) is provided on an outer wall of one side of the box shell (27).

5. The double-circulation mist bath dust collector according to claim 1, characterized in that: Two legs (1) are installed on the outer walls on both sides of the bottom of the collection box (2) via bolts, and a scraper (3) is installed on the bottom end of the collection box (2) via bolts.

6. The double-circulation mist bath dust collector according to claim 5, characterized in that: The scraper (3) comprises a body module (12), two driving sprockets (13) are installed inside the body module (12) via bearings, and a scraper chain (14) is wound between the two driving sprockets (13); a driving module (15) is installed on the outer wall of one side of the body module (12) via bolts, and the driving module (15) is in transmission connection with one of the driving sprockets (13); and a discharge port (16) is provided on the outer wall of one side of the body module (12).

7. The double-circulation mist bath dust collector according to claim 1, characterized in that: The water vapor separation box (7) comprises a separation box (22), a water vapor hollow ball separation structure (26) is installed inside the separation box (22) by means of bolts, and a plurality of installation openings (25) are provided on an outer wall of one side of the separation box (22), and the top end of the separation cylinder (20) is installed inside the installation opening (25) by means of bolts.

8. The double-circulation mist bath dust collector according to claim 7, characterized in that: A connection port (29) is provided on an outer wall on one side of the top of the collection box (2), and the dust removal box (6) is connected to the collection box (2) via the connection port (29).

9. The double-circulation mist bath dust collector according to claim 8, characterized in that: The other two outer walls on the top of the collecting box (2) are both provided with a second connection port (30), and the bottom end of the separation cylinder (20) is mounted inside the second connection port (30) by means of bolts.

10. The double-circulation mist bath dust collector according to claim 9, characterized in that: A connecting pipeline (31) is inserted into one side of the inner wall of the collection box (2), and the two ends of the connecting pipeline (31) are respectively connected to the two water pumps (5).

Images