CN210657767U - Calender cooling water inlet system with bypass structure - Google Patents
Calender cooling water inlet system with bypass structure Download PDFInfo
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- CN210657767U CN210657767U CN201920971262.0U CN201920971262U CN210657767U CN 210657767 U CN210657767 U CN 210657767U CN 201920971262 U CN201920971262 U CN 201920971262U CN 210657767 U CN210657767 U CN 210657767U
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Abstract
A calender cooling water inlet system with a bypass structure comprises a cooling water inlet end, a cooling water outlet end, a plurality of hand valves, a filter, a temperature control valve, a bypass hand valve, a cold-heat exchanger, an oil outlet end and an oil inlet end; the hand valve comprises a first hand valve and a second hand valve, and the cooling water inlet end is sequentially connected with the first hand valve, the filter, the temperature control valve, the cold-heat exchanger, the second hand valve and the cooling water outlet end; one end of the bypass hand valve is connected with the cooling water inlet end, and the other end of the bypass hand valve is connected to a line between the temperature control valve and the cold-heat exchanger; the oil inlet end is connected with the cold-heat exchanger and the oil outlet end in sequence. The problem of among the present calender hydraulic pressure station temperature-sensing valve easy trouble, lead to a large amount of finished papers to drop to influence the selling price, cause serious economic loss is solved. The practicability is strong, and the popularization significance is strong.
Description
Technical Field
The utility model relates to a papermaking industry field especially relates to a take plating press cooling water intake system of bypass structure.
Background
In the paper industry in the prior art, the cooling water inlet of the hydraulic station of the existing calender is controlled by a temperature control valve. During normal production, the temperature of a hydraulic station of the calender is relatively high, and particularly in summer, so that the use requirement on the temperature control valve is very high. Due to long-term use, rust in a pipeline and sundries in water can be mixed in cooling water, so that the control of a temperature control valve is failed, or the temperature cannot be controlled directly due to the fault of the temperature control valve, so that the temperature of hydraulic oil is greatly increased, a calender is disconnected, and the calender can be closed again only by replacing the temperature control valve to reduce the temperature of the hydraulic oil after the calender is disconnected. The time is needed in the treatment process, and a large amount of finished paper is directly reduced, so that the sale price is influenced, and finally, serious economic loss is caused.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to provide a take calender cooling water intake system of bypass structure to temperature control valve trouble easily in having solved present calender hydraulic pressure station leads to a large amount of finished papers to fall, thereby influences the selling price, causes serious economic loss's problem.
In order to achieve the above purpose, the utility model mainly adopts the following technical scheme:
a calender cooling water inlet system with a bypass structure comprises a cooling water inlet end, a cooling water outlet end, a plurality of hand valves, a filter, a temperature control valve, a bypass hand valve, a cold-heat exchanger, an oil outlet end and an oil inlet end; the hand valve comprises a first hand valve and a second hand valve, and the cold-heat exchanger comprises a water inlet, a water outlet, an oil inlet and an oil outlet; the cooling water inlet end is sequentially connected with the first hand valve, the filter, the temperature control valve and a water inlet on the cold-heat exchanger, and the water outlet of the cold-heat exchanger is sequentially connected with the second hand valve and the cooling water outlet end; one end of the bypass hand valve is connected with the cooling water inlet end, and the other end of the bypass hand valve is connected to a line between the temperature control valve and the cold-heat exchanger; the oil inlet end is connected with an oil inlet on the cold-heat exchanger, and an oil outlet on the cold-heat exchanger is connected with an oil outlet end; high-temperature oil in the calender flows in from the oil inlet and flows out from the oil outlet, cooling water flows in from the water inlet of the cold-heat exchanger and flows out from the water outlet, heat exchange between the water and the oil is completed in the cold-heat exchanger, and the temperature of the oil in the calender is reduced.
Furthermore, the filter comprises a shell and a PP cotton filter element in the shell.
Furthermore, the sponge filter element is arranged on the inner side of the PP sponge filter element, and the filter screen is arranged on the inner side of the sponge filter element.
Furthermore, a water outlet end and a water inlet end are arranged on the shell, and the water inlet end and the water outlet end are respectively connected with the first hand valve and the temperature control valve.
Further, the shell comprises a first shell and a second shell, and the first shell is connected to the second shell in a flange mode.
To sum up, the utility model discloses a set up a bypass hand valve, link to each other bypass hand valve one end and cooling water entrance point, the other end is connected on the circuit between temperature-sensing valve and cold heat exchanger, when the temperature-sensing valve breaks down. The bypass hand valve is opened, cooling water enters from the cooling water inlet end and directly enters the cold-heat exchanger through the bypass hand valve to be in heat transfer with high-temperature hydraulic oil, and the influence of the fault temperature control valve is avoided, so that an emergency effect is achieved, and a larger flow can be provided. The problem of among the present calender hydraulic pressure station temperature-sensing valve easy trouble, lead to a large amount of finished papers to drop to influence the selling price, cause serious economic loss is solved. The practicability is strong, and the popularization significance is strong.
Drawings
FIG. 1 is a schematic structural view of a calender cooling water intake system with a bypass structure according to the present invention;
fig. 2 is an exploded view of the filter housing of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 and 2, the utility model provides a take calender cooling water intake system of bypass structure to solve the easy trouble of temperature control valve in present calender hydraulic pressure station, lead to a large amount of finished papers to fall, thereby influence the selling price, cause serious economic loss's problem. The calender cooling water inlet system with the bypass structure comprises a cooling water inlet end 10, a cooling water outlet end 20, a plurality of hand valves 30, a filter 40, a temperature control valve 50, a bypass hand valve 60, a cold-heat exchanger 70, an oil outlet end 80 and an oil inlet end 90. The hand valve 30 comprises a first hand valve 31 and a second hand valve 32, and the cold-heat exchanger 70 comprises a water inlet 71, a water outlet 72, an oil inlet 73 and an oil outlet 74; the cooling water inlet end 10 is connected with the first hand valve 31, the filter 40, the temperature control valve 50 and the water inlet 71 of the cold-heat exchanger in sequence. The first hand valve 31 is used for controlling the opening and closing of the cooling water inlet end 10, and the second hand valve 32 is used for controlling the opening and closing of the cooling water outlet end 20. The filter 40 is used for filtering out rust mixed in the pipeline and impurities in the water in the cooling water; the temperature can not be controlled directly due to the control failure of the temperature control valve 50. The water outlet 72 of the cold-heat exchanger is connected with the second hand valve 32 and the cooling water outlet 20 in sequence; one end of the bypass hand valve 60 is connected with the cooling water inlet end 10, and the other end is connected with a circuit between the temperature control valve 50 and the cold-heat exchanger 70; the bypass hand valve 60 is used to provide emergency action and a greater flow rate in the event of a failure of the thermostatic valve 50. The oil inlet end 90 is connected with the oil inlet 73 of the cold-heat exchanger, and the oil outlet 74 of the cold-heat exchanger is connected with the oil outlet 80; the high-temperature oil in the calender flows in from the oil inlet 73 and flows out from the oil outlet 74, the cooling water flows in from the water inlet 71 of the cold-heat exchanger and flows out from the water outlet 72, the heat exchange between the water and the oil is completed in the cold-heat exchanger 70, and the temperature of the oil in the calender is reduced.
The filter 40 comprises a casing 41, a PP sponge filter element 42 is arranged in the casing, a sponge filter element 43 is arranged on the inner side of the PP sponge filter element 42, a filter screen 44 is arranged on the inner side of the sponge filter element 43, a water outlet end 45 and a water inlet end 46 are arranged on the casing, and the water inlet end 46 and the water outlet end 45 are respectively connected with the first hand valve 31 and the temperature control valve 50. The housing 41 includes a first housing 411 and a second housing 412, and the first housing 411 is flanged to the second housing 412. Is beneficial to replacing the filter screen 44, the sponge filter element 43 and the PP surface filter element in the shell.
When the filter is installed, the PP cotton filter element 42, the sponge filter element 43 and the filter screen 44 are placed in the first shell 411, and the first shell 411 and the second shell 412 are connected through flanges. The cooling water inlet end 10 is connected with the first hand valve 31 and the water inlet end 46 of the filter 40 in sequence, and the water outlet end 45 of the filter 40 is connected with the temperature control valve 50, the cold-heat exchanger 70, the second hand valve 32 and the cooling water outlet end 20 in sequence. One end of the bypass hand valve 60 is connected to the cooling water inlet port 10, and the other end is connected to a line between the thermo valve 50 and the cold heat exchanger 70. And finally, the oil inlet end 90 is sequentially connected with the cold-heat exchanger 70 and the oil outlet end 80.
When the cooling water is used, the cooling water enters from the cooling water inlet end 10, enters the filter 40 through the hand valve, passes through the PP surface filter element, the sponge filter element 43 and the filter screen 44 in the filter 40, is filtered to remove rust and impurities, passes through the temperature control valve 50, and enters the cold-heat exchanger 70 through the temperature regulation of the temperature control valve 50. The high-temperature hydraulic oil enters the cold-heat exchanger 70 from the oil inlet end 90, is subjected to heat transfer with cooling water in the cold-heat exchanger 70, so that the temperature is reduced, and the cooled hydraulic oil flows out of the cold-heat exchanger 70 and is discharged through the oil outlet end 80. The cooling water after heat transfer with the high-temperature hydraulic oil in the cold-heat exchanger 70 flows out of the cold-heat exchanger 70 and is discharged from the cooling water outlet port 20 through the hand valve. When the thermo valve 50 malfunctions. When the bypass hand valve 60 is opened, the cooling water enters from the cooling water inlet end 10 and directly enters the cold-heat exchanger 70 through the bypass hand valve 60 to be in heat transfer with the high-temperature hydraulic oil, so that the influence of the failed temperature control valve 50 is avoided.
To sum up, the utility model discloses a set up a bypass hand valve 60, link to each other bypass hand valve 60 one end with cooling water entrance point 10, the other end is connected on the circuit between temperature-sensing valve 50 and cold heat exchanger 70, when temperature-sensing valve 50 breaks down. When the bypass hand valve 60 is opened, the cooling water enters from the cooling water inlet end 10 and directly enters the cold-heat exchanger 70 through the bypass hand valve 60 to carry out heat transfer with the high-temperature hydraulic oil, and the influence of the fault temperature control valve 50 is avoided, so that the emergency function is realized, and a larger flow can be provided. The problem of among the present calender hydraulic pressure station temperature-sensing valve 50 easy trouble, lead to a large amount of finished papers to drop to influence the selling price, cause serious economic loss is solved. The practicability is strong, and the popularization significance is strong.
The above-mentioned embodiments only represent one embodiment of the present invention, and the description is more specific and detailed, but not understood as the limitation of the scope of the invention, it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. The utility model provides a take calender cooling water intake system of bypass structure which characterized in that: the device comprises a cooling water inlet end, a cooling water outlet end, a plurality of hand valves, a filter, a temperature control valve, a bypass hand valve, a cold-heat exchanger, an oil outlet end and an oil inlet end; the hand valve comprises a first hand valve and a second hand valve, and the cold-heat exchanger comprises a water inlet, a water outlet, an oil inlet and an oil outlet; the cooling water inlet end is sequentially connected with the first hand valve, the filter, the temperature control valve and a water inlet on the cold-heat exchanger, and the water outlet of the cold-heat exchanger is sequentially connected with the second hand valve and the cooling water outlet end; one end of the bypass hand valve is connected with the cooling water inlet end, and the other end of the bypass hand valve is connected to a line between the temperature control valve and the cold-heat exchanger; the oil inlet end is connected with an oil inlet on the cold-heat exchanger, and an oil outlet on the cold-heat exchanger is connected with an oil outlet end; high-temperature oil in the calender flows in from the oil inlet and flows out from the oil outlet, and cooling water flows in from the water inlet of the cold-heat exchanger and flows out from the water outlet.
2. A calender cooling water intake system with a bypass structure as set forth in claim 1, wherein: the filter comprises a shell and a PP cotton filter element in the shell.
3. A calender cooling water intake system with a bypass structure as set forth in claim 2, wherein: the sponge filter element is arranged on the inner side of the PP sponge filter element, and the filter screen is arranged on the inner side of the sponge filter element.
4. A calender cooling water intake system with a bypass structure as set forth in claim 2, wherein: and the shell is provided with a water outlet end and a water inlet end, and the water inlet end and the water outlet end are respectively connected with the first hand valve and the temperature control valve.
5. A calender cooling water intake system with a bypass structure as set forth in claim 2, wherein: the shell comprises a first shell and a second shell, and the first shell is connected to the second shell in a flange mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920971262.0U CN210657767U (en) | 2019-06-25 | 2019-06-25 | Calender cooling water inlet system with bypass structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920971262.0U CN210657767U (en) | 2019-06-25 | 2019-06-25 | Calender cooling water inlet system with bypass structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210657767U true CN210657767U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920971262.0U Active CN210657767U (en) | 2019-06-25 | 2019-06-25 | Calender cooling water inlet system with bypass structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210657767U (en) |
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2019
- 2019-06-25 CN CN201920971262.0U patent/CN210657767U/en active Active
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