阅读说明：本技术 一种pvc剥离辊闭路循环过滤冷却装置 (PVC stripping roller closed cycle filtration cooling device ) 是由 孙夕雨 葛连斌 徐其波 于 2020-11-18 设计创作，主要内容包括：一种PVC剥离辊闭路循环过滤冷却装置,包括柜体,柜体内设上层板、下层板将柜体分隔为上腔室、中腔室和下腔室,每个腔室均设有前柜门和后柜门；下腔室内设有循环泵和输入口和输出口；中腔室内设有两散热器,散热器设有第一温度传感器,柜板与散热器对应处设有开孔；上腔室设有过滤水箱、控制电箱、风扇,柜门外设有显示及控制面板,过滤水箱内设有第二温度传感器、液位传感器；输入口通过管路串联两个散热器,然后进入过滤水箱,接着通过循环泵,最后从输出口排出,所有温度传感器、液位传感器、风机、循环泵均与控制电箱电气连接。本装置与剥离辊实现闭路水循环冷却,水资源损耗小,剥离辊不受污染、维护周期长,确保了剥离辊的工艺温度参数。(A PVC stripping roller closed-loop circulating filtering cooling device comprises a cabinet body, wherein an upper plate and a lower plate are arranged in the cabinet body to divide the cabinet body into an upper chamber, a middle chamber and a lower chamber, and each chamber is provided with a front cabinet door and a rear cabinet door; a circulating pump, an input port and an output port are arranged in the lower cavity; two radiators are arranged in the middle cavity, the radiators are provided with first temperature sensors, and openings are formed in the positions, corresponding to the radiators, of the cabinet plate; the upper cavity is provided with a filtering water tank, a control electric box and a fan, a display and control panel is arranged outside the cabinet door, and a second temperature sensor and a liquid level sensor are arranged in the filtering water tank; the input port passes through two radiators of pipeline series connection, then gets into the filtration water tank, passes through the circulating pump after that, discharges from the delivery outlet at last, and all temperature sensor, level sensor, fan, circulating pump all with control electronic box electrical connection. The device and the stripping roller realize closed water circulation cooling, the water resource loss is small, the stripping roller is not polluted, the maintenance period is long, and the process temperature parameters of the stripping roller are ensured.)

1. The utility model provides a PVC peel roller closed cycle filtration cooling device which characterized in that: the cabinet body comprises a rectangular cabinet body which is vertically arranged, wherein the cabinet body comprises an upper cabinet plate, a lower cabinet plate, a left cabinet plate and a right cabinet plate, an upper layer plate and a lower layer plate which are vertically arranged at intervals and are horizontal are arranged in the cabinet body, the upper layer plate and the lower layer plate are both pore plates, the cabinet body is divided into an upper cavity, a middle cavity and a lower cavity by the upper layer plate and the lower layer plate, and the cabinet body is respectively provided with a front cabinet door and a rear cabinet door which are independent from each other and correspond to the upper cavity, the middle;

a circulating pump is arranged in the lower cavity, and an input port and an output port penetrating through the inside and the outside of the lower cavity are arranged on a rear cabinet door of the lower cavity;

two radiators which are arranged left and right are arranged in the middle cavity, the radiator on the left side is attached to a left cabinet plate of the cabinet body, the radiator on the right side is attached to a right cabinet plate of the cabinet body, and first radiating holes are formed in positions of the left cabinet plate and the right cabinet plate, corresponding to the radiators;

the upper chamber is internally provided with a filter water tank, a control electric box and a fan, the filter water tank is arranged on the upper plate, the filter water tank is provided with a liquid level sensor and a second temperature sensor, the control electric box is connected with a front cabinet door of the upper chamber, and the outer side of the front cabinet door is also provided with a display and control panel matched with the control electric box;

the filter water tank, the radiators and the circulating pump are respectively provided with a corresponding water inlet and a corresponding water outlet, the input port is connected with the water inlet of one radiator through a first pipeline, the radiator is provided with a first temperature sensor, the water outlet of the radiator is connected with the water inlet of the other radiator through a second pipeline, the water outlet of the other radiator is connected with the water inlet of the filter water tank through a third pipeline, the water outlet of the filter water tank is connected with the water inlet of the circulating pump through a fourth pipeline, and the water inlet of the circulating pump is connected with the output port through a fifth pipeline;

first temperature sensor, second temperature sensor, level sensor, fan, circulating pump all with control electronic box electrical connection.

2. The PVC stripping roll closed cycle filtration cooling device of claim 1, wherein: the radiator include the bottom plate, be equipped with the air vent on the bottom plate, the water storage box of interval arrangement around being equipped with two on the bottom plate, be equipped with the cooling tube of two water storage boxes of a plurality of intercommunications between the inboard that two water storage boxes are close to mutually, circumference is equipped with the spiral helicine heat radiation fins who arranges around the cooling tube on every cooling tube, the upside of two water storage boxes still is equipped with the apron that is enough to cover two water storage boxes and cooling tubes, to arbitrary one radiator, the water inlet of radiator is located the downside of one of them water storage box, the delivery port of radiator is located the upside of another water storage box, first temperature sensor is located the upside of the water.

3. The PVC stripping roll closed cycle filtration cooling device of claim 1, wherein: the filter water tank is a rectangular tank body, a vertically arranged filter screen is arranged in the filter water tank, the filter screen divides the filter water tank into a left cavity and a right cavity, a water inlet of the filter water tank is arranged on the upper portion of the cavity on one side, a water outlet of the filter water tank is arranged on the lower portion of the cavity on the other side, a water filling port is further arranged on the upper portion of the cavity corresponding to the water outlet of the filter water tank, and a liquid level sensor and a second temperature sensor are arranged in the cavity on the side corresponding to the water outlet of the.

4. The PVC stripping roll closed cycle filtration cooling device of claim 1, wherein: the bottom of the cabinet body is provided with supporting legs, and a second heat dissipation hole is formed in the position, corresponding to the circulating pump, of the lower cabinet plate.

Technical Field

The invention relates to a closed-loop circulating filtering and cooling device for a PVC stripping roller.

Background

The PVC production line determines that the PVC sheet quality has many factors, wherein one of the especially key factors is the temperature of PVC peel roller, and the high temperature peel roller is peeled off unclean, and PVC sheet roughness is very big, and the low PVC sheet that the temperature is crossed can the flow line to the sheet plastic shape is poor, and the online production limit is cut the clout and is easily disconnected, influences the productivity, increases staff's intensity of labour simultaneously. The PVC sheet quality is unqualified due to the over-high or over-low temperature, and the typical unqualified phenomena comprise poor transparency, flow lines and uneven thickness, so that the waste is great, and the productivity is greatly reduced.

At present, most of PVC, PP, PE and other sheet production lines are provided with a cooling system, the cooling mainly comprises an underground water storage tank, a cooling tower, a conveying pipeline, a water pump and the like, and forms a cooling circulation system together with a stripping roller, wherein the underground water storage tank and the cooling tower are open, the water evaporation loss is large (5 tons of evaporation per month is estimated) in the cooling process, cooling water is easily polluted, the stripping roller is polluted, after the stripping roller is used for a period of time, the inside of the stripping roller is scaled, the cooling effect of the stripping roller is seriously influenced, in the scaling process of the stripping roller, in order to ensure the quality of PVC and other sheets, the machine speed can be slowly reduced, the productivity is reduced, the production cost is gradually improved, when the cooling effect of the stripping roller is poor, chain reactions of related parts of the production line can be brought, for example, bearings at two ends of the stripping roller can be accelerated to age until, when the bearing has a problem, the load of the corresponding driving motor can be gradually increased until the motor is burnt out, the machine needs to be stopped for maintenance and production halt, the maintenance man-hour is large, the production cost is undoubtedly increased, the productivity is influenced, the maintenance and repair cycle is shortened, and therefore, the cooling of the stripping roller is very important.

By adopting the cooling mode, the control of the sheet quality completely depends on an experienced master to control the machine speed according to the produced sheet quality, the temperature control also depends on experience to regulate the flow of circulating water, the temperature has no instrument digital display basis and is only experience, common staff is difficult to drive a PVC production line, and the common staff and the master have great difference in salary treatment, the master has more masters, the higher the production cost of an enterprise, the weaker the competitiveness of the product market, the different sheet qualities of PVC and the like produced by different masters cannot reach the numerical quantification guidance process temperature parameters.

In general, adopt the new production line of sheets such as this kind of cooling method PVC, 1 year back inside clearance of stripper roll needs 1 time per year, 2 years back inside clearance of stripper roll need 2 times per year, 3 years back inside clearance of stripper roll needs 2 times per year, 1 time will be changed annually to stripper roll bearing damage, and the motor damages and changes 1 time. The time of 1 person and a half day is needed for cleaning dirt in the stripping roller, the time of 4 persons and a half day is needed for replacing a bearing of the stripping roller, and the time of 2 persons and 2 hours are needed for replacing a motor of the stripping roller; the circulating pump and the spraying pump with the total power of about 3KW work 24 hours a day, the energy consumption is relatively high, and the circulating pump and the spraying pump need to be maintained or replaced once per year on average. It is not difficult to understand that clearance and maintenance must be gone on under producing the line shutdown state every time, and shut down at every turn and all can cause the input of manpower and materials, influence production, and this loss is very big to the enterprise.

Disclosure of Invention

The invention aims to solve the technical problem of providing a closed circulation filtering and cooling device for a PVC stripping roller, which realizes closed water circulation cooling with the stripping roller, has the advantages of extremely low water resource loss, longer maintenance period of the stripping roller, lower maintenance cost, no pollution in the interior of the stripping roller and low energy consumption of the cooling device, and can greatly improve the product quality and the productivity.

In order to solve the technical problem, the invention provides a closed-loop circulating filtering and cooling device for a PVC stripping roller, which is characterized in that: the cabinet body comprises a rectangular cabinet body which is vertically arranged, wherein the cabinet body comprises an upper cabinet plate, a lower cabinet plate, a left cabinet plate and a right cabinet plate, an upper layer plate and a lower layer plate which are vertically arranged at intervals and are horizontal are arranged in the cabinet body, the upper layer plate and the lower layer plate are both pore plates, the cabinet body is divided into an upper cavity, a middle cavity and a lower cavity by the upper layer plate and the lower layer plate, and the cabinet body is respectively provided with a front cabinet door and a rear cabinet door which are independent from each other and correspond to the upper cavity, the middle;

a circulating pump is arranged in the lower cavity, and an input port and an output port penetrating through the inside and the outside of the lower cavity are arranged on a rear cabinet door of the lower cavity;

two radiators which are arranged left and right are arranged in the middle cavity, the radiator on the left side is attached to a left cabinet plate of the cabinet body, the radiator on the right side is attached to a right cabinet plate of the cabinet body, and first radiating holes are formed in positions of the left cabinet plate and the right cabinet plate, corresponding to the radiators;

the upper chamber is internally provided with a filter water tank, a control electric box and a fan, the filter water tank is arranged on the upper plate, the filter water tank is provided with a liquid level sensor and a second temperature sensor, the control electric box is connected with a front cabinet door of the upper chamber, and the outer side of the front cabinet door is also provided with a display and control panel matched with the control electric box;

the filter water tank, the radiators and the circulating pump are respectively provided with a corresponding water inlet and a corresponding water outlet, the input port is connected with the water inlet of one radiator through a first pipeline, the radiator is provided with a first temperature sensor, the water outlet of the radiator is connected with the water inlet of the other radiator through a second pipeline, the water outlet of the other radiator is connected with the water inlet of the filter water tank through a third pipeline, the water outlet of the filter water tank is connected with the water inlet of the circulating pump through a fourth pipeline, and the water inlet of the circulating pump is connected with the output port through a fifth pipeline;

first temperature sensor, second temperature sensor, level sensor, fan, circulating pump all with control electronic box electrical connection.

For the sake of simplicity of explanation, the PVC stripping roller closed-loop circulating filtration cooling device is also referred to as the device below.

The working principle of the device is as follows: the PVC stripping roller circulating water is connected into an input port and an output port of the device, a circulating pump (a fan is synchronously started) is started, the circulating pump pumps water from a water outlet of the filter water tank through a fourth pipeline, cooled water is sent into the stripping roller through a fifth pipeline under the pressure action of the circulating pump, the heat of the stripping roller is transferred to the circulating water at the moment, the circulating water with high temperature flows out of the stripping roller and enters a water inlet of a radiator on one side through a first pipeline, then enters another water inlet of the radiator from a water outlet of the radiator through a second pipeline, and then enters the filter water tank from another water outlet of the radiator through a third pipeline to perform closed water. When the fan works, external air is sucked in through the first heat dissipation holes in the left cabinet plate and the right cabinet plate of the box body, the sucked air can blow through the corresponding radiators to take away the heat, the hot air moves upwards to enter the upper cavity and is discharged out of the cabinet body by the fan, and thus the cooling of the stripping roller is completed.

The display and control panel is provided with a water level alarm function, a water inlet temperature display function, a water outlet temperature display function, a fan speed regulation function and a water pump control function.

The device has the advantages that: the device realizes closed-circuit water circulation through related pipelines and external stripping rollers, water is a carrier of cooling heat exchange, a large amount of water resources can be saved through the closed-circuit circulation, the average water addition amount per month is less than 10KG, a circulating pump and a fan are only about 300W, and only the power of the circulating cooling system of the existing water tower is 1/10, so that the energy saving is obvious. And because the filter water tank is arranged, the maintenance period of the stripping roller is longer, and the interior of the stripping roller is not polluted. In addition, the filtering water tank of the device is arranged in the upper cavity, and the water level of the filtering water tank is higher than that of the stripping roller, so that the stripping roller can be ensured to be full of cooling water in a cooling pipeline and hardware, and the filtering water tank can automatically exhaust air when the circulating pump works.

In order to achieve better using effect of the device, the preferred scheme is as follows:

as preferred, the radiator include the bottom plate, be equipped with the air vent on the bottom plate, the water storage box of interval arrangement around being equipped with two on the bottom plate, be equipped with the cooling tube of two water storage boxes of a plurality of intercommunications between the inboard that two water storage boxes are close to mutually, the inside and outside circumference of every cooling tube is equipped with the spiral helicine heat radiation fin who arranges around the cooling tube, the upside of two water storage boxes still is equipped with the apron that is enough to cover two water storage boxes and cooling tube, to arbitrary radiator, the water inlet of radiator is located the downside of one of them water storage box, the delivery port of radiator is located the upside of another water storage box, first temperature sensor is located the upside of.

The hot water of this device of input gets into a water storage box, then transversely passes through the cooling tube, and the heliciform heat radiation fins increase heat radiating area on the cooling tube is convenient for dispel the heat fast, and the upside that first temperature sensor located the water storage box that links to each other with first pipeline can monitor the hydrothermal temperature that gets into this device, corresponds the temperature instrument of intaking on the control panel.

Preferably, the filtering water tank is a rectangular tank body, a vertically arranged filter screen is arranged in the filtering water tank, the filtering water tank is divided into a left cavity and a right cavity by the filter screen, a water inlet of the filtering water tank is arranged at the upper part of the cavity at one side, a water outlet of the filtering water tank is arranged at the lower part of the cavity at the other side, a water filling port is further arranged at the upper part of the cavity corresponding to the water outlet of the filtering water tank, and the liquid level sensor and the second temperature sensor are arranged in the cavity at the side corresponding to the water outlet of the.

The filter screen is arranged in the filter water tank and used for filtering rust on the stripping roller and preventing the circulating pump from being blocked. The liquid level sensor is used for monitoring whether the quantity of circulating water is enough or not, and the functions of the liquid level sensor correspond to high water level alarm and low water level alarm on the control panel; the second temperature sensor is used for monitoring the return water temperature of the device, and the function of the second temperature sensor corresponds to that of a water outlet temperature instrument on the control panel.

Preferably, the bottom of the cabinet body is provided with supporting legs, and a second heat dissipation hole is formed in the position, corresponding to the circulating pump, of the lower cabinet plate.

The second heat dissipation trompil can assist the circulating pump heat dissipation, can also blow the radiator upwards and discharge by the fan from cabinet body bottom air inlet, is favorable to whole heat dissipation.

Drawings

Fig. 1 is a perspective view of the present device.

Fig. 2 is another perspective view of the device.

Fig. 3 is a schematic view of the internal structure of the present apparatus.

Fig. 4 is another schematic internal structure of the device.

Fig. 5 is a bottom view of the device.

Fig. 6 is a perspective view of the filtering water tank.

Fig. 7 is a sectional view of the filtering water tank.

Fig. 8 is a perspective view of the heat sink.

Fig. 9 is a sectional view of the heat sink.

Detailed Description

Referring to fig. 1-9, a closed-loop circulation filtering and cooling device for a PVC stripping roller is characterized in that: the cabinet comprises a vertically arranged rectangular cabinet body 1, wherein the cabinet body 1 comprises an upper cabinet plate 11, a lower cabinet plate 12, a left cabinet plate 13 and a right cabinet plate 14, an upper layer plate 15 and a lower layer plate 16 which are arranged at intervals up and down and are horizontal are arranged in the cabinet body 1, both the upper layer plate 15 and the lower layer plate 16 are pore plates, the cabinet body 1 is divided into an upper cavity 17, a middle cavity 18 and a lower cavity 19 by the upper layer plate 15 and the lower layer plate 16, and the cabinet body 1 is respectively provided with a front cabinet door and a rear cabinet door which are independent from each other corresponding to the upper cavity 17, the middle cavity 18 and the;

a circulating pump 8 is arranged in the lower cavity 19, and an input port 1911 and an output port 1912 which penetrate through the inside and the outside of the lower cavity 19 are arranged on the rear cabinet door 191 of the lower cavity 19;

the bottom of the cabinet body 1 is provided with supporting legs 2, and a second heat dissipation opening 121 is formed in the position of the lower cabinet plate 12 corresponding to the circulating pump 8.

Two radiators 3 which are arranged left and right are arranged in the middle chamber 18, the radiator 3 on the left side is attached to a left cabinet plate 13 of the cabinet body 1, the radiator 3 on the right side is attached to a right cabinet plate 14 of the cabinet body 1, and first radiating holes 38 are formed in positions, corresponding to the radiators 3, of the left cabinet plate 13 and the right cabinet plate 14;

a filtering water tank 4, a control electric box 5 and a fan 6 are arranged in the upper cavity 17, the filtering water tank 4 is arranged on the upper plate 15, a liquid level sensor 41 (in the embodiment, the liquid level sensor 41 is a floating ball switch) and a second temperature sensor 42 are arranged on the filtering water tank 4, the control electric box 5 is connected with a front cabinet door 171 of the upper cavity 17, and a display and control panel matched with the control electric box 5 is further arranged on the outer side of the front cabinet door;

the filter water tank 4, the radiators 3 and the circulating pump 8 are respectively provided with a corresponding water inlet and a corresponding water outlet, the input port 1911 is connected with the water inlet 35 of one radiator 3 through a first pipeline 71, the radiator 3 is provided with a first temperature sensor 37, the water outlet 36 of the radiator 3 is connected with the water inlet 35 of the other radiator 3 through a second pipeline 72, the water outlet 36 of the other radiator 3 is connected with the water inlet 43 of the filter water tank 4 through a third pipeline 73, the water outlet 44 of the filter water tank 4 is connected with the water inlet of the circulating pump 8 through a fourth pipeline 74, and the water inlet of the circulating pump 8 is connected with the output port 1912 through a fifth pipeline;

the heat radiator 3 comprises a bottom plate 31, vent holes 311 are formed in the bottom plate 31, two water storage tanks 32 which are arranged at intervals front and back are formed in the bottom plate 31, a plurality of radiating pipes 33 which are communicated with the two water storage tanks 32 are arranged between the inner sides, close to each other, of the two water storage tanks 32, spiral radiating fins 331 which are arranged around the radiating pipes 33 are arranged on the inner periphery and the outer periphery of each radiating pipe 33, cover plates 34 which are enough to cover the two water storage tanks 32 and the radiating pipes 33 are further arranged on the upper sides of the two water storage tanks 32, for any one heat radiator 3, a water inlet 35 of the heat radiator 3 is located on the lower side of one water storage tank 32, a water outlet 36 of the heat radiator 3 is located on the upper side of the other water.

The filter water tank 4 is a rectangular tank body, a vertically arranged filter screen 45 is arranged in the filter water tank 4, the filter screen 45 divides the filter water tank 4 into a left chamber and a right chamber, a water inlet 43 of the filter water tank 4 is arranged on the upper part of the chamber on one side, a water outlet 44 of the filter water tank 4 is arranged on the lower part of the chamber on the other side, a water filling port is also arranged on the upper part of the chamber corresponding to the water outlet 44 of the filter water tank 4, and the liquid level sensor 41 and the second temperature sensor 42 are arranged in the chamber on the side corresponding to the water outlet 44 of the filter.

The first temperature sensor 37, the second temperature sensor 42, the liquid level sensor 41, the fan and the circulating pump 8 are all electrically connected with the control electrical box 5.

The working principle of the device is as follows: the PVC thin roller circulating water is connected into an input port 1911 and an output port 1912 of the device, a circulating pump 8 is started (a fan 6 is also started synchronously), the circulating pump 8 pumps water from a water outlet 44 of the filter water tank 4 through a fourth pipeline 74, the cooled water is sent to the stripping roller through a fifth pipeline under the pressure action of the circulating pump 8, the heat of the stripping roller is transferred to the circulating water at the moment, the circulating water with high temperature flows out of the stripping roller and enters a water inlet of one radiator 3 through a first pipeline 71, then enters a water inlet of the other radiator 3 through a second pipeline 72 from a water outlet of the radiator 3, and then enters the filter water tank 4 through a third pipeline 73 from a water outlet of the other radiator 3 to perform closed water circulation. When hot water passes through the two radiators 3, heat is evaporated in the chamber, when the fan 6 works, external air enters through the first heat dissipation holes 38 on the left cabinet plate 14 and the right cabinet plate 14 of the box body, blows through the corresponding radiators 3 to take away the heat, and the hot air moves upwards to enter the upper chamber 17 and is exhausted out of the cabinet body 1 by the fan 6, so that the cooling of the stripping roller is completed.

The display and control panel is provided with a water level alarm function, a water inlet temperature display function, a water outlet temperature display function, a fan speed regulation function and a water pump control function.

The device has the advantages that: the device realizes closed-loop water circulation through related pipelines and external stripping rollers, water is a carrier of cooling heat exchange, a large amount of water resources can be saved through the closed-loop circulation, the average water addition amount per month is less than 10KG, the circulating pump 8 and the fan 6 are only about 300W, and only the power of the existing water tower circulating cooling system 1/10 is provided, so that the electric energy saving is obvious. And because the filtering water tank 4 is arranged, the maintenance period of the stripping roller is longer, and the interior of the stripping roller is not polluted. In addition, the filtering water tank 4 of the device is arranged in the upper cavity 17, and the water level of the filtering water tank is higher than that of the stripping roller, so that the stripping roller is ensured to be full of cooling water in a cooling pipeline and hardware, and the filtering water tank can automatically exhaust air when the circulating pump 8 works.

The hot water input into the device enters a water storage tank 32, then transversely passes through the radiating pipe 33, the spiral radiating fins 331 on the radiating pipe 33 increase the radiating area, the quick heat dissipation is convenient, the first temperature sensor 37 is arranged on the upper side of the water storage tank 32 connected with the first pipeline 71, the temperature of the hot water entering the device can be monitored, and the temperature meter corresponding to the water inlet on the control panel is arranged.

The filtering water tank 4 is internally provided with a filter screen 45 for filtering rust of the stripping roller and preventing the circulating pump 8 from being blocked. The liquid level sensor 41 is used for monitoring whether the quantity of circulating water is enough or not, and the functions of the liquid level sensor correspond to high water level alarm and low water level alarm on the control panel; the second temperature sensor 42 is used for monitoring the return water temperature of the device, and the function of the second temperature sensor corresponds to that of a water outlet temperature instrument on the control panel.

The second heat dissipation open pore 121 can assist the circulating pump 8 in heat dissipation, and can also blow the heat sink 3 upwards from the air inlet at the bottom of the cabinet body 1 and be discharged by the fan, thereby being beneficial to the whole heat dissipation.