A noodle steaming device

Abstract

The present application relates to a kind of steaming device, including steaming box, be equipped with upper layer ring back net chain, middle layer ring back net chain and lower layer ring back net chain in steaming box;Upper layer ring back net chain, middle layer ring back net chain and lower layer ring back net chain are sequentially arranged from top to bottom;The working surface movement direction of upper layer ring back net chain and lower layer ring back net chain is opposite to middle layer ring back net chain;The input end and output end of middle layer ring back net chain are respectively arranged with the output end of upper layer ring back net chain and the input end of lower layer ring back net chain;Upper layer ring back net chain, middle layer ring back net chain and lower layer ring back net chain are respectively connected with upper layer motor, middle layer motor and lower layer motor, and are respectively driven to rotate by upper layer motor, middle layer motor and lower layer motor.The present application is independently arranged without interference in each layer ring back net chain, shortens the length of single motor load conveying net chain, reduces the pre-tightening force of tensioning end, reduces the number of turns of single conveying net chain, reduces the wear of conveying net chain, prolongs the service life of conveying net chain and motor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of noodle processing, in particular to a noodle steaming device. BACKGROUND

[0002] There are various ways to make noodles complete the ripening process, such as pressure cookers, frying, boiling, and steaming.

[0003] The steam ripening method is to complete the ripening process by forced heat exchange between saturated steam with constant temperature and pressure and the product to be ripened within a certain time. The traditional rice and flour industry today mainly uses single-layer and three-layer noodle steaming devices. The single-layer noodle steaming device is a device with only one effective noodle steaming path, which usually uses a gear and rack lifting structure to lift the upper cover for easy cleaning, maintenance, and repair during daily production, and the cost is relatively low. However, the single-layer noodle steaming device has a large footprint and low space utilization, making it difficult to improve the production capacity of the equipment; the three-layer noodle steaming device improves the space utilization of the single-layer noodle steaming device, reduces the equipment footprint by a factor of two, and has high space utilization and compact equipment.

[0004] The prior art discloses a noodle production line and a noodle steaming machine. The steam box of the noodle steaming machine is provided with three layers of independent and separated inner containers. The working surfaces of the conveying mesh belts in the top and bottom inner containers move in the same direction, the working surfaces of the conveying mesh belts in the adjacent layers move in opposite directions, and the output ends of the upper conveying mesh belts are connected to the input ends of the adjacent lower conveying mesh belts, so that the raw noodles can smoothly slide onto the lower conveying mesh belt for continuous transmission and steaming. The steam box includes a steam box body and a steam box side door that is buckled to the steam box body. The steam box side door and the steam box body are both filled with thermal insulation materials, and sealing rubber pads are arranged at the joints for sealing. In order to make the raw noodles in the upper layer fall onto the conveying mesh belt in the lower layer more smoothly, a guide plate is arranged at the joint of the conveying mesh belts in the adjacent layers.

[0005] In use, the conveying mesh belt enters the conveying mesh belt transmission channel of the top layer inner container from the input end of the top layer under the drive of the driving shaft, raw noodles are placed on the mesh belt, and the raw noodles fall from the output end of the top layer to the input end of the middle layer under the drive of the mesh belt. Under the action of the guide plate, the raw noodles fall onto the middle layer conveying mesh belt and are conveyed by the middle layer mesh belt to the middle layer inner container for re-steaming. The movement direction is opposite to that of the top layer. Similarly, at the output end of the middle layer, the raw noodles fall onto the input end of the bottom layer mesh belt and are steamed and baked in the conveying mesh belt transmission channel of the bottom layer inner container. The movement direction of the bottom layer is the same as that of the top layer, and the steamed noodles are conveyed to the next process by the output end of the bottom layer.

[0006] The existing technology has the following technical problems:

[0007] The single power motor is used as the power of the whole conveying of the three-layer conveying mesh belt of the noodle steaming device, the length of the conveying mesh belt is too long, the pre-tightening force of the tensioning end is increased, there are many turning positions, the direction of the conveying mesh belt is changed by the arc-shaped guide plate forcibly interfering with the track of the chain, the greater resistance between the chain and the arc-shaped guide plate causes greater wear, the service life of the conveying mesh belt is shortened, and the maintenance cost is increased. SUMMARY

[0008] In view of the problems in the prior art, the purpose of the present application is to provide a noodle steaming device which is simple in structure and easy to arrange, and can prolong the service life of the conveying mesh belt and the motor.

[0009] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0010] A noodle steaming device, comprising a steaming box, wherein the steaming box is provided with an upper layer of looped mesh belt, a middle layer of looped mesh belt and a lower layer of looped mesh belt;

[0011] The upper layer of looped mesh belt, the middle layer of looped mesh belt and the lower layer of looped mesh belt are arranged in sequence from top to bottom;

[0012] The working surfaces of the upper layer of looped mesh belt and the lower layer of looped mesh belt move in opposite directions to the middle layer of looped mesh belt;

[0013] The input end and the output end of the middle layer of looped mesh belt are arranged correspondingly to the output end of the upper layer of looped mesh belt and the input end of the lower layer of looped mesh belt;

[0014] The upper layer of looped mesh belt, the middle layer of looped mesh belt and the lower layer of looped mesh belt are respectively connected with an upper layer motor, a middle layer motor and a lower layer motor, and are driven to rotate by the upper layer motor, the middle layer motor and the lower layer motor respectively.

[0015] Further, the steaming box comprises an upper cover and a groove body, a sealing hose is embedded on the groove body, the upper cover is buckled on the sealing hose, the groove body is embedded with a transmission assembly, the upper layer motor and the middle layer motor are connected to the upper layer of looped mesh belt and the middle layer of looped mesh belt through the transmission assembly, the lower layer motor is arranged outside the groove body, a lifting mechanism is arranged above the upper cover, and the lifting mechanism is connected to the upper cover.

[0016] Further, the lifting mechanism comprises a portal frame and a lifting motor, the portal frame is arranged above the upper cover, the lifting motor is arranged on the portal frame, there are two upper covers, the two upper covers are arranged in sequence along the extension direction of the groove body, the two upper covers are respectively provided with lifting chains, and the lifting motor is connected to the two lifting chains through one-out-two driving.

[0017] Further, rigid couplings and worm gear reducers are arranged on both sides of the lifting motor, the lifting motor is connected to the corresponding worm gear reducers through the rigid couplings, and the worm gear reducers are connected to the corresponding lifting chains.

[0018] Further, the groove body comprises a groove inner wall and a groove outer wall corresponding to connect to form a groove inner cavity, and the groove inner cavity is provided with a groove skeleton, and the two ends of the groove skeleton are respectively abutted to the groove inner wall and the groove outer wall.

[0019] Further, the upper cover comprises a cover inner wall and a cover outer wall corresponding to connect to form a cover inner cavity, and the cover inner cavity is provided with a top skeleton.

[0020] Further, the groove inner cavity and the cover inner cavity are both filled with a heat preservation layer, and the groove inner wall, the groove outer wall, the cover inner wall and the cover outer wall are all provided with a plurality of empty grooves for reducing the heat conduction area.

[0021] Further, the upper cover is provided with a guide assembly, the gantry is correspondingly provided with a vertically arranged guide groove, and the guide assembly is slidingly connected to the guide groove.

[0022] Further, the upper layer, the middle layer and the lower layer are respectively provided with a steam blocking device, and the steam blocking device is provided with a steam pipe between the two side sealing plates, and the steam blocking device is provided with a water guide hole at the lower end.

[0023] Further, the steam box is provided with a moisture removal device at the outer side of the two ends, and the moisture removal device comprises a first collector, an arc-shaped transition pipe and a second collector connected to the steam box; the bottom of the first collector is provided with a condensate water collecting groove, and the condensate water collecting groove is provided with a first drain hole, and the first drain hole is eccentrically arranged; the second collector is arranged obliquely above the first collector and is connected to the top of the first collector through the arc-shaped transition pipe; the second collector is through-penetrated from top to bottom, and the bottom is provided with a second drain hole.

[0024] Overall, the present application has the following advantages:

[0025] Unlike the prior art which uses a single power motor as the power for the three-layer conveying net belt of the steamed noodle device, the upper layer, the middle layer and the lower layer of the present application are respectively driven to rotate by an upper layer motor, a middle layer motor and a lower layer motor, and each layer of the ring back net chain is independent and does not interfere with each other, which not only makes the arrangement easier, but also shortens the length of the conveying net chain of a single motor load, reduces the pre-tightening force of the tensioning end, reduces the number of turns of a single conveying net chain, reduces the wear of the conveying net chain, prolongs the service life of the conveying net chain and the motor, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the steamed noodle device of the present application.

[0027] Figure 2 It is a schematic diagram of the steamed noodle device of the present application.

[0028] Figure 3 It is a schematic diagram of the steamed noodle device of the present application.

[0029] Figure 4 A-A view of Figure 1

[0030] Figure 5 H enlarged view of Figure 1

[0031] Figure 6 A schematic view of the moisture removal device of the invention.

[0032] In the figure:

[0033] 11 - slot body, 12 - sealing hose, 13 - transmission assembly, 14 - air clearance slot;

[0034] 21 - gantry, 211 - guide slot, 22 - hoisting motor, 23 - bumper group, 24 - rigid coupling, 25 - transmission shaft, 26 - worm gear reducer, 27 - hoisting chain, 28 - sheave group, 29 - driving sprocket;

[0035] 31 - upper cover, 32 - Jizhiding framework, 33 - cover outer wall, 34 - guide assembly, 35 - sealing plate, 36 - cover inner wall;

[0036] 41 - upper layer ring back net chain, 42 - middle layer ring back net chain, 43 - lower layer ring back net chain, 44 - upper layer motor, 45 - middle layer motor, 46 - lower layer motor, 47 - tensioning mechanism;

[0037] 51 - steam isolation device, 52 - steam pipe group;

[0038] 6 - moisture removal device, 61 - first collector, 62 - second collector, 63 - arc-shaped transition pipe, 64 - condensate water collection tank, 65 - first drain, 66 - second drain;

[0039] 71 - rack main body, 72 - slot body limiting, 73 - adjustable leg, 74 - water receiving tank. DETAILED DESCRIPTION

[0040] The invention will be further described in detail below.

[0041] As Figures 1-4 shown, a steamed noodle device includes a rack, a steaming box, a conveying mechanism, a hoisting mechanism, a water receiving tank 74, and a moisture removal device 6 located before and after the rack.

[0042] The rack includes an adjustable leg 73, a rack main body 71, a slot body limiting 72, a power motor group of the conveying mechanism, and the like.

[0043] The steaming box includes an upper cover 31 and a slot body 11 that are connected at the top and bottom. The slot body 11 is supported on the rack main body 71 and locked and limited by the slot body limiting 72 in the rack. ​​

[0044] The groove body 11 is provided with an upper layer of looped net chain 41, a middle layer of looped net chain 42 and a lower layer of looped net chain 43. The input end and the output end of the middle layer of looped net chain 42 are arranged correspondingly to the output end of the upper layer of looped net chain 41 and the input end of the lower layer of looped net chain 43. The three layers of net chains are provided with tensioning mechanisms 47 for tensioning the net chains. The tensioning mechanisms 47 are installed on the head and tail racks of the conveying mechanism rack body 71. The turning guide plates are installed on the head and tail racks of the rack to guide and ensure the reasonable spacing between the net chains.

[0045] The power motor set of the conveying mechanism includes an upper layer motor 44, a middle layer motor 45 and a lower layer motor 46, which are used to drive the upper layer of looped net chain 41, the middle layer of looped net chain 42 and the lower layer of looped net chain 43 to rotate respectively without interfering with each other.

[0046] The groove body 11 is embedded with a sealed hose 12, and the upper cover 31 is buckled to the sealed hose 12. The upper cover 31 is pressed on the groove limiting part 72 by its own weight, and the built-in sealed hose 12 in the limiting part compensates for the slight deformation of the groove body 11. The sealing performance is even better than that of a single layer of steaming device, effectively reducing the loss of heat in the steaming box.

[0047] The groove body 11 is embedded with two transmission assemblies. The upper layer motor 44 and the middle layer motor 45 are connected to the upper layer of looped net chain 41 and the middle layer of looped net chain 42 through one transmission assembly 13 respectively to complete the torque transmission of the upper layer of looped net chain 41 and the middle layer of looped net chain 42. Specifically, the transmission assembly 13 includes a chain wheel coupling. The upper layer motor 44 or the middle layer motor 45 is connected to one end of the chain wheel coupling respectively. The other end of the chain wheel coupling is connected to the upper layer of looped net chain 41 or the middle layer of looped net chain 42 through a chain wheel and a chain. The chain wheel coupling has a radial compensation function. The lower layer motor 46 is arranged outside the groove body 11 to enhance the sealing performance of the groove body 11. A lifting mechanism is arranged above the upper cover 31, and the lifting mechanism is connected to the upper cover 31.

[0048] As shown in Figure 5 The groove body 11 includes a groove inner wall and a groove outer wall corresponding to the groove cavity formed by the connection. The groove cavity is provided with a groove skeleton, and the two ends of the groove skeleton are respectively abutted to the groove inner wall and the groove outer wall. The groove cavity is filled with a heat preservation layer. The groove inner wall and the groove outer wall are both provided with a plurality of empty grooves 14 for reducing the heat conduction area to reduce the conduction of heat in the steaming box through the metal skeleton.

[0049] The upper layer of looped net chain 41, the middle layer of looped net chain 42 and the lower layer of looped net chain 43 are respectively provided with steam isolation devices 51. The steam isolation devices 51 are respectively provided with sealing plates 35 on both sides. Steam pipes connected to the steam pipe group 52 pass between the two sealing plates 35. The lower end of the steam isolation device 51 is provided with a water guide. The steam isolation device 51 and the sealing plate 35 can reduce the transmission of heat of each layer, which is conducive to the better completion of the ripening process of each layer of steamed rice.

[0050] The upper cover 31 comprises a cover inner wall 36 and a cover outer wall 33 corresponding to the connection to form a cover inner cavity, and the cover inner cavity is provided with a gold top framework 32. The cover inner cavity is filled with a heat preservation layer, and the cover inner wall 36 and the cover outer wall 33 are each provided with a plurality of empty grooves 14 for reducing the heat conduction area to reduce the conduction of the heat in the steaming box through the gold top framework 32.

[0051] The lifting mechanism comprises a portal frame 21, a guide groove 211, a lifting motor 22, a rigid coupling 24, a transmission shaft 25, a worm gear reducer 26, a chain wheel coupling, a groove wheel set 28, a lifting chain 27, a safety lever set 23 and the like.

[0052] The portal frame 21 is provided with the vertically arranged guide groove 211, and the side of the upper cover 31 is provided with a guide assembly 34 which is slidingly connected to the guide groove 211 to complete the limiting and guiding of the lifting of the upper cover 31 and avoid excessive shaking of the upper cover 31 during the lifting and lowering process.

[0053] The lifting motor 22 is the only power of the lifting mechanism; the rigid coupling 24 is used for connecting the driving sprocket 29 shaft with the transmission shaft 25 and the input end of the worm gear; the rigid coupling 24 serves as the connection radial compensation; the worm gear reducer 26 is used for realizing the final speed reduction; the worm gear reducer has the self-locking function to increase the safety of the lifting operation; the chain wheel coupling is used for connecting the worm gear reducer 26 with the groove wheel set 28; the chain wheel coupling can complete the torque transmission and the radial compensation.

[0054] The safety lever set 23 comprises a safety lever seat, a safety lever and the like; when the safety lever is placed in the hole of the safety lever seat, all the power motors of the equipment cannot be started; after the safety lever is taken out of the hole, the lifting motor 22 can be normally started; the safety lever set 23 is arranged to avoid the accidental touch during the operation, temporarily support the upper cover 31 during the lifting, and ensure the safety of the operation.

[0055] As shown in Figure 6 As shown in FIG. 1, the steam box is provided with a moisture removal device 6 at each of the two ends of the steam box.

[0056] The first collector 61 is provided with a condensate collecting groove 64 at the bottom, and the condensate collecting groove 64 is provided with a first drain port 65 which is eccentrically arranged to ensure that the condensate drops avoid the conveying net chain and does not affect the product quality. The second collector 62 is arranged obliquely above the first collector 61 and is connected to the top of the first collector 61 through the arc-shaped transition pipe 63; the second collector 62 is through from top to bottom, and is provided with a second drain port 66 at the bottom.

[0057] Working process description:

[0058] Action one: the upper cover 31 is naturally covered on the groove body 11, and all the safety levers are taken out of the safety lever seat holes;

[0059] Action two: the steam pipe group 52 is opened, so that the steam fills the entire sealed space in the steaming box, and the temperature reaches above 85 degrees;

[0060] Action three: the lower layer motor 46 drives the lower layer ring back net chain 43 to operate, and the upper layer motor 44 and the middle layer motor 45 complete the power output to the upper layer ring back net chain 41 and the middle layer ring back net chain 42 through the transmission assembly 13 embedded in the groove body 11 after eliminating the concentricity error through the chain wheel shaft coupling, and the upper layer ring back net chain 41 and the middle layer ring back net chain 42 start to operate;

[0061] Action four: the folded noodles are input from the upper layer ring back net chain 41, and are transported through the middle layer ring back net chain 42 and the lower layer ring back net chain 43 in turn, so as to complete the last aging and reach the outlet, and the specified aging time is ended.

[0062] Action five: before lifting the upper cover 31, all power motors for conveying are turned off, and the lifting motor 22 is started; the lifting motor 22 transmits torque to the main sprocket through the motor sprocket, the main sprocket simultaneously inputs torque to the transmission shaft 25 connected with the two end turbine worm reducers 26, the turbine worm reducer 26 inputs torque to the groove wheel through the chain wheel shaft coupling to drive the groove wheel to rotate at the designed speed, the coiled lifting chain 27 lifts the upper cover 31, and the guide assembly 34 installed on the side of the upper cover 31 passes through the limiting of the guide groove 211 to rise according to the predetermined track during the lifting process, is lifted to the set height, the lifting motor 22 is stopped, the lifting of the upper cover 31 is stopped, the safety rod is inserted into the safety rod seat hole, and the lifting of the upper cover 31 is completed.

[0063] Action seven: cleaning and maintenance of the equipment are completed.

[0064] Action eight: before the upper cover 31 is lowered, all safety rods in the safety rod seats are removed, the lifting motor 22 is started in reverse, the speed reducer is lowered to the groove body 11, the lifting chain 27 is lowered to a set distance below the upper cover 31, the lifting motor 22 is turned off, and the lowering of the upper cover 31 is completed.

[0065] The present application has the following advantages over the prior art:

[0066] 1. The prior art has multiple side doors, which greatly increases the difficulty of sealing and heat preservation. The present application only retains the inlet and outlet as conveying channels and does not open side doors, so that the working space is relatively closed, the steam is more fully used, and the steam leakage is avoided, so as to affect the working environment and production safety in the production process.

[0067] 2、The conveying device of the present application adopts independent motor driving for the three-layer net chain, which divides the chain length of the whole machine independently, avoids excessive wear of the overall chain due to greater drag of the turning position under tension in the case of single motor power, and avoids the decline of the overall sealing performance of the device by designing the power motor to the outlet or embedding the transmission assembly 13 into the groove body 11.

[0068] 3、The prior art has multiple side doors, and it is difficult to work between the side doors when maintaining and repairing. The present application adopts the separation of the upper cover 31 and the groove body 11, and the space provided by the single-layer steamed noodle device for cleaning and maintenance is retained after the upper cover 31 is lifted alone, and the cumbersome operation of separating the groove body 11, the conveying mechanism and the upper cover 31 is avoided. After the upper cover 31 is lowered, the self-weight of the upper cover 31 is pressed on the groove body limiting portion 72, and the sealing performance is even better than the single-layer steamed noodle device after the built-in sealing hose 12 compensates for the slight deformation of the groove body 11.

[0069] 4、The present application adopts the way of segmented manufacturing and assembly of major components, which makes production easier.

[0070] 5、The lifting mechanism of the present application adopts the transmission mode of single-power motor + transmission shaft 25 + rigid coupling 24 + double-turbine worm reducer 26. Firstly, the one-out-two mode ensures the consistency of the lifting height of the left and right ends during lifting, secondly, the rigid coupling 24 connects to compensate for the radial tolerance, reducing the stringent processing requirements, then the worm reducer has self-locking function, increasing the safety of lifting operation, the guiding assembly 34 intervenes in the lifting process to avoid excessive swinging of the upper cover 31 during lifting and lowering, and finally the chain lifting structure is adopted to avoid the balancing problem of the worm lifting multiple lifting screws.

[0071] 4、The present application not only solves the problem of poor heat preservation performance and increased energy loss caused by the large area of the lower frame of the traditional three-layer steamed noodle device exposed to the outside, but also solves the problem of difficult cleaning and maintenance of the equipment inside the frame with a heat preservation door structure, and avoids the steam overflow caused by poor manufacturing precision of the heat preservation door and aging failure of the sealing strip under the frame with a heat preservation door structure.

[0072] The above embodiments are the preferred embodiments of the present application, but the embodiments of the present application are not limited by the above embodiments, and any changes, modifications, substitutions, combinations and simplifications made without departing from the spirit and principles of the present application should be equivalent replacement methods, which are all included in the protection scope of the present application.

Claims

1. A steaming device for noodles, characterized in that: Includes a steam oven, which is equipped with an upper loop mesh chain, a middle loop mesh chain and a lower loop mesh chain; The upper loopback network chain, the middle loopback network chain, and the lower loopback network chain are set up sequentially from top to bottom; The working surfaces of the upper and lower looping net chains move in the opposite directions to those of the middle looping net chain. The input and output ends of the middle loopback network are arranged to correspond to the output end of the upper loopback network and the input end of the lower loopback network, respectively. The upper loop chain, the middle loop chain, and the lower loop chain are respectively connected to the upper motor, the middle motor, and the lower motor, and are driven to rotate by the upper motor, the middle motor, and the lower motor, respectively. The steamer includes a top cover and a tank. A sealing hose is embedded in the tank, and the top cover is fastened to the sealing hose. A transmission assembly is embedded in the tank. The upper motor and the middle motor are connected to the upper loop mesh chain and the middle loop mesh chain respectively through the transmission assembly. The lower motor is located outside the tank. A lifting mechanism is provided above the top cover and is connected to the top cover. The lifting mechanism includes a gantry frame and a lifting motor. The gantry frame is located above the top cover, and the lifting motor is located on the gantry frame. There are two top covers, which are arranged sequentially along the extension direction of the trough. Each of the two top covers is equipped with a lifting chain. The lifting motor is connected to the two lifting chains with one output and two drives. Rigid couplings and worm gear reducers are provided on both sides of the lifting motor. The lifting motor is connected to the corresponding worm gear reducer through the rigid coupling, and the worm gear reducer is connected to the corresponding lifting chain. The transmission assembly includes a sprocket coupling. The upper-level motor or the middle-level motor is connected to one end of a sprocket coupling, and the other end of the sprocket coupling is connected to the upper-level looping net chain or the middle-level looping net chain through a sprocket and a chain.

2. The steaming device for noodles according to claim 1, characterized in that: The tank includes an inner wall and an outer wall that are connected to form the inner cavity of the tank. The inner cavity of the tank is provided with a tank skeleton, and the two ends of the tank skeleton abut against the inner wall and the outer wall of the tank, respectively.

3. The steaming device for noodles according to claim 2, characterized in that: The top cover includes an inner wall and an outer wall that are connected to form the inner cavity of the cover, and a pyramidal top frame is provided inside the inner cavity of the cover.

4. A steaming device for noodles according to claim 3, characterized in that: Both the inner cavity of the tank and the inner cavity of the cover are filled with an insulation layer. The inner wall of the tank, the outer wall of the tank, the inner wall of the cover, and the outer wall of the cover are all provided with multiple air-proof grooves to reduce the heat conduction area.

5. A steaming device for noodles according to claim 1, characterized in that: The top cover is equipped with a guide assembly, and the gantry is equipped with vertically arranged guide grooves. The guide assembly is slidably connected to the guide grooves.

6. A steaming device for noodles according to claim 1, characterized in that: Steam isolation devices are installed above the upper, middle and lower looping mesh chains, respectively. Sealing plates are installed on both sides of the steam isolation devices, and steam pipes are connected between the sealing plates on both sides. A water guide is installed at the lower end of the steam isolation device.

7. A steaming device for noodles according to claim 1, characterized in that: The steam oven is equipped with dehumidification devices on both sides. The dehumidification devices include a first collector, an arc-shaped transition pipe and a second collector connected to the steam oven. The bottom of the first collector is equipped with a condensate collection tank and a first drain outlet, which is eccentrically positioned. The second collector is located diagonally above the first collector and is connected to the top of the first collector through the arc-shaped transition pipe. The second collector is open from top to bottom and has a second drain outlet at the bottom.

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