CN210736961U - Heating system of polymer melt spinning processing equipment - Google Patents
Heating system of polymer melt spinning processing equipment Download PDFInfo
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- CN210736961U CN210736961U CN201921379716.1U CN201921379716U CN210736961U CN 210736961 U CN210736961 U CN 210736961U CN 201921379716 U CN201921379716 U CN 201921379716U CN 210736961 U CN210736961 U CN 210736961U
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Abstract
The utility model belongs to the technical field of polymer melt spinning processing equipment. A heating system of polymer melt spinning processing equipment comprises a liquid medium storage tank, an evaporation device, a spinning box and a condensing tank, wherein a first pipeline is arranged between the liquid medium storage tank and the evaporation device, and an injection pump is arranged on the first pipeline; a second pipeline is arranged between the evaporation device and the spinning box; a third pipeline is arranged between the spinning box and the condensing tank, and a fourth pipeline is arranged between the condensing tank and the evaporation device. The utility model has the advantages of reasonable design, evenly stable to spinning temperature's control, can realize the system operation, and holistic operating stability is strong, can realize multiple mode's conversion in the course of the work, no matter before the operation, in the operation or after the operation, the homoenergetic carries out further optimization to the system to the orderly even running of guarantee system.
Description
Technical Field
The utility model belongs to the technical field of polymer melt spinning, concretely relates to polymer melt spinning processing equipment heating system.
Background
The spinning beam is used as an important device for polymer melt spinning, and the temperature is an important process parameter in the production process. The control mode of the temperature of the existing spinning box is as follows: a liquid heating medium is added into the box body, the liquid heating medium is heated by the electric heating rod to be evaporated, and the spinning box body and accessories thereof are heated by steam evaporated by the liquid heating medium, so that the requirement of equipment heat energy in the whole production process is met. The heating mode is found to be easy to have the following defects in the production process: 1. the pressure control of the tank body is strictly required, once the pressure is too high, an explosion-proof sheet in the tank body can be broken, the temperature control of the tank body is unbalanced, and meanwhile, the loss of a liquid heating medium is caused; 2. poor and uneven temperature control stability; 3. as the heating medium is cracked in the long-term high-temperature use process to generate small molecular gas, the production requirement can be met only by on-site manual exhaust.
The prior art has the following defects: the current spinning heating system has the disadvantages of non-uniform temperature, poor stability, poor controllability and inconvenient operation.
Disclosure of Invention
The utility model aims at the problem and not enough that the aforesaid exists, provide a polymer melt spinning processing equipment heating system, its structural design is reasonable, and spinning temperature control is convenient, stable and even to make the safe effectual operation of whole heating system.
In order to achieve the purpose, the adopted technical scheme is as follows:
a polymer melt spinning process equipment heating system, comprising: a liquid medium storage tank; the evaporation device is provided with a first pipeline between the liquid medium storage tank and the evaporation device, the first pipeline is provided with an injection pump, and the first pipeline is used for guiding the liquid medium into the evaporation device from the liquid medium storage tank; a second pipeline is arranged between the evaporation device and the spinning box and used for guiding a high-temperature gas medium generated by the evaporation device into the spinning box; and a third pipeline is arranged between the spinning box and the condensing tank, the third pipeline is used for guiding a gas medium in the spinning box after heat exchange into the condensing tank, a fourth pipeline is arranged between the condensing tank and the evaporating device, and the fourth pipeline is used for guiding a liquid medium in the condensing tank into the evaporating device.
The heating system of the polymer melt spinning processing equipment of the utility model preferably further comprises a liquid medium circulation processing unit, wherein the liquid medium circulation processing unit comprises a first branch pipeline; the first end part of the first branch pipeline is connected to the first pipeline on the rear side of the injection pump, and the second end part of the first branch pipeline is connected with the liquid medium storage tank; the liquid medium circulates in the liquid medium storage tank through the first pipeline, the injection pump and the first branch pipeline.
According to the utility model discloses polymer melt spinning processing equipment heating system, preferably, the liquid medium storage tank with be provided with first control valve on the first pipeline between the injection pump, the tie point of first branch pipeline and first pipeline is first intercommunication portion, be provided with the second control valve on the first pipeline of first intercommunication portion rear side, be provided with the third control valve on the first branch pipeline.
According to the utility model discloses polymer melt spinning processing equipment heating system preferably, still includes pipeline exhaust unit, pipeline exhaust unit includes: an evacuation line disposed between the evaporation device and the liquid medium reservoir; the first end of the second branch pipeline is connected with the first pipeline, and the second end of the second branch pipeline is connected with the emptying pipeline; the connection point of the second branch pipeline and the first pipeline is close to the liquid medium injection port of the evaporation device.
According to the utility model discloses polymer melt spinning processing equipment heating system, preferably, the tie point of second branch pipeline and evacuation pipeline is the second intercommunication portion, be provided with the fourth control valve on the evacuation pipeline between second intercommunication portion and the evaporation plant, be provided with the fifth control valve on the evacuation pipeline between second connecting portion and the liquid medium storage tank; and a sixth control valve is arranged on the second branch pipeline, a connection point of the second branch pipeline and the first pipeline is a third communication part, and a seventh control valve is arranged on the first pipeline between the third communication part and the evaporation device.
According to the utility model discloses polymer melt spinning processing equipment heating system, preferably, be provided with the pressure release pipeline between evaporation plant top and the evacuation pipeline, be provided with relief valve and pressure sensor on the pressure release pipeline.
According to the utility model discloses polymer melt spinning processing equipment heating system, preferably, the top of condensing tank is provided with the fifth pipeline, the fifth pipeline is connected with the accumulator, be provided with the third branch pipeline on the fifth pipeline, the tie point of third branch pipeline and fifth pipeline is the fourth intercommunication portion, be provided with the eighth control valve on the fifth pipeline between fourth intercommunication portion and the condensing tank; and a ninth control valve is arranged on the second pipeline, a tenth control valve is arranged on the third pipeline, and an eleventh control valve is arranged on a fifth pipeline between the fourth connecting part and the recovery tank.
According to the utility model discloses polymer melt spinning processing equipment heating system, preferably, be provided with nitrogen gas pipeline on the liquid medium storage tank.
According to the utility model discloses polymer melt spinning processing equipment heating system, preferably, evaporation plant is heat medium stove.
According to the utility model discloses polymer melt spinning processing equipment heating system, preferably, evaporation plant, spinning case and the condensate tank forms a heating work unit, and is a plurality of the parallelly connected intercommunication of heating work unit sets up singly on the liquid medium storage tank.
By adopting the technical scheme, the beneficial effects are as follows:
the utility model has the advantages of reasonable design, evenly stable to spinning temperature's control, can realize the system operation, and holistic operating stability is strong, can realize multiple mode's conversion in the course of the work, no matter before the operation, in the operation or after the operation, the homoenergetic carries out further optimization to the system to the orderly even running of guarantee system.
This application can circulate through the medium to in the liquid medium storage tank before the operation to carry out the medium and handle, ensure that liquid medium remains good state throughout in the storage tank, ensure its stability in the heat exchange pipeline of heat medium stove and spinning case, ensure the efficiency of heat exchange and entire system's safety and stability.
The device can provide a plurality of injection paths for the liquid medium in the heat medium furnace, thereby avoiding the blockage problem caused by a single path and improving the practicability of the device; the combination of a plurality of different treatment systems can be realized through the setting of each pipeline, through opening and closing of different control valves to reach processes such as injection, recovery, evacuation to liquid medium, realize different functions at different operation stages, ensure whole heating system's safe, effective, stable operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention are limited thereto.
Fig. 1 is a schematic structural diagram of a heating system of a polymer melt spinning processing device according to an embodiment of the present invention.
Number in the figure:
100 is a liquid medium storage tank, 101 is a first pipeline, 102 is an injection pump, 103 is a first branch pipeline, 104 is a first control valve, 105 is a first communication part, 106 is a second control valve, 107 is a third control valve, 108 is a nitrogen gas conveying pipeline, 109 is a sixth pipeline, and 110 is an injection port;
200 is an evaporation device, 201 is a second pipeline, 202 is an emptying pipeline, 203 is a second branch pipeline, 204 is a second connecting part, 205 is a fourth control valve, 206 is a fifth control valve, 207 is a sixth control valve, 208 is a seventh control valve, 209 is a pressure relief pipeline, 210 is a third communicating part, 211 is a ninth control valve, and 212 is a pressure relief valve;
300 is a spinning box, 301 is a third pipeline, 302 is a tenth control valve;
Detailed Description
In order to make the purpose, technical features and technical effects of the technical solution of the present invention clearer, the drawings of the embodiments of the present invention are combined together, and the example solution of the embodiments of the present invention is clearly and completely described.
Referring to fig. 1, a heating system of a polymer melt spinning processing device comprises a liquid medium storage tank 100, an evaporator 200, a spinning box 300 and a condensing tank 400, wherein the evaporator 200 in this embodiment is a heat medium furnace, a first pipeline 101 is arranged between the liquid medium storage tank 100 and the evaporator 200, an injection pump 102 is arranged on the first pipeline 101, and the first pipeline 101 is used for guiding a liquid medium from the liquid medium storage tank 100 to the evaporator 200; a second pipeline 201 is arranged between the evaporation device 200 and the spinning manifold 300, and the second pipeline 201 is used for introducing the high-temperature gas medium generated by the evaporation device 200 into the spinning manifold 300; a third pipeline 301 is arranged between the spinning manifold 300 and the condensing tank 400, the third pipeline 301 is used for guiding a gas medium in the spinning manifold 300 after heat exchange into the condensing tank 400, a fourth pipeline 401 is arranged between the condensing tank 400 and the evaporation device 200, the fourth pipeline 401 is used for guiding a liquid medium in the condensing tank 400 into the evaporation device 200, a ninth control valve is arranged on the second pipeline, and a tenth control valve is arranged on the third pipeline.
During operation, liquid medium in the liquid medium storage tank is pumped into the evaporation plant through the injection pump, the evaporation plant heats the liquid medium, and form high-temperature gas, high-temperature gas gets into the heating chamber of spinning case through the second pipeline, realizes the heating to spinning material in the spinning case through the heat transfer, after high-temperature gas discharges the spinning case, rethread third pipeline 301 introduces the condensate tank, medium in the condensate tank flows back to the evaporation plant through fourth pipeline 401, realize cyclic utilization.
Under normal operating condition, evaporation plant 200, spinning case 300 and condensing tank 400 form a stable heating cycle system, the medium gets into the heat transfer in the spinning case after evaporation plant heats promptly, the medium behind the heat transfer forms the circulation in condensing tank backward flow to evaporation plant 200, keep stable pressure and liquid level in the condensing tank, and realize entire system's continuous circulation, when because long-time work, when the medium takes place the schizolysis, the schizolysis material needs to be discharged, can open the valve on the fifth pipeline on upper portion, carry out the edulcoration, guarantee heat exchange efficiency and the effect of medium. Specifically, the fourth pipeline at the bottom of the condensing tank 400 of the present embodiment is used for circulation of the liquid medium, and as cracking occurs during operation of the liquid medium, pressure of the whole system changes, and efficiency and energy consumption of the heating system are affected, a fifth pipeline 402 is disposed at the top of the condensing tank 400, the fifth pipeline 402 is connected to a recovery tank 403, and an eighth control valve and a control sensor are disposed on the fifth pipeline, and when exhaust is required, the eighth control valve 404 is opened, generally lasting for about 2 minutes, and exhaust gas is discharged.
The liquid medium storage tank is only started in the initial stage and the subsequent liquid supplementing stage of the circulating system, and the liquid medium does not need to be continuously pumped from the liquid medium storage tank under the normal working state of the heating system.
In the production process, in order to realize the systematization of whole production operation, evaporation plant 200, spinning box 300 of this application and condensing tank 400 form a heating work unit, and is a plurality of the parallelly connected intercommunication of heating work unit sets up singly on the liquid medium storage tank 100, realize depositing of liquid medium through a liquid medium storage tank promptly, and then satisfy each heating work unit's needs, realize the orderly dispatch to whole production operation, greatly reduced the cost of input, realized the management and control operation of equipment unification, systematization, be favorable to the fine-grained management of whole spinning processing equipment heating system.
In order to process the liquid medium and ensure the stability of the liquid medium in operation, the embodiment is further provided with a liquid medium circulation processing unit, and the liquid medium circulation processing unit comprises a first branch pipeline 103; a first end of the first branch pipe 103 is connected to the first pipe 101 on the rear side of the injection pump 102, and a second end of the first branch pipe 103 is connected to the liquid medium storage tank 100; the liquid medium circulates in the liquid medium tank 100 through the first pipe 101, the injection pump 102, and the first branch pipe 103. Specifically, a first control valve 104 is provided in a first pipe 101 between the liquid medium tank 100 and the injection pump 102, a connection point between the first branch pipe 103 and the first pipe 101 is a first communicating portion 105, a second control valve 106 is provided in the first pipe 101 on the rear side of the first communicating portion 105, and a third control valve 107 is provided in the first branch pipe 103.
During liquid medium treatment, the second control valve 106 is closed, the first control valve 104 and the third control valve 107 are opened, and the injection pump is started to work, so that circulation of the liquid medium is realized, and the liquid medium treatment is further completed.
When the liquid medium is injected, the third control valve 107 is closed, the first control valve 104 and the second control valve 106 are opened, and the injection pump is started to operate, thereby injecting the liquid medium into the evaporation apparatus 200. Because there is gas in the pipe network of the whole pipeline, therefore, it is necessary to perform exhaust in the injection pipeline, so the embodiment is further provided with a pipeline exhaust unit, the pipeline exhaust unit includes an evacuation pipeline 202 and a second branch pipeline 203, the evacuation pipeline 202 is arranged between the evaporation apparatus 200 and the liquid medium storage tank 100; a first end of the second branch pipe 203 is connected to the first pipe 101, and a second end of the second branch pipe 203 is connected to the evacuation pipe 202; the connection point of the second branch line 203 to the first line 101 is close to the liquid medium injection port of the evaporation device 200. Specifically, a connection point of the second branch line 203 and the evacuation line 202 is a second communication portion 204, a fourth control valve 205 is disposed on the evacuation line 202 between the second communication portion 204 and the evaporation device 200, and a fifth control valve 206 is disposed on the evacuation line 202 between the second connection portion 204 and the liquid medium storage tank 100; a sixth control valve 207 is provided in the second branch line 203, a connection point between the second branch line 203 and the first line 101 is a third communicating portion 210, and a seventh control valve 208 is provided in the first line 101 between the third communicating portion 210 and the evaporation device 200.
The air exhaust operation before the liquid medium is injected is specifically as follows: closing the third control valve 107, the seventh control valve 208 and the fourth control valve 205, opening the first control valve 104, the second control valve 106, the fifth control valve 206 and the sixth control valve 207, and starting the injection pump to work, so as to realize the exhaust of the pipeline; after exhausting, injecting corresponding liquid medium.
When the pipeline between the third communicating part and the evaporation device is damaged or blocked, the reverse liquid medium injection is needed, at this time, the third control valve 107, the seventh control valve 208 and the fifth control valve 206 are closed, the first control valve 104, the second control valve 106 and the fourth control valve 205 are opened, the injection pump is started to work, and the liquid medium enters the evaporation device through the first pipeline, the second branch pipeline and the emptying pipeline, so that the reverse injection is realized.
Still be provided with pressure release pipeline 209 between the evaporation plant 200 top of this embodiment and the evacuation pipeline 202, be provided with relief valve and pressure sensor on pressure release pipeline 209, through the pressure that detects among the evaporation plant, and then carry out the pressure release.
In order to further ensure the stability of the liquid medium in the whole system, improve the heat exchange efficiency and reduce the energy consumption, the nitrogen conveying pipeline 108 is arranged on the liquid medium storage tank 100, and the gas replacement can be carried out by introducing nitrogen in the operation process. Further, reverse replacement can also be realized through the discharge line to this application to realize the gas replacement before whole system uses. In addition, the liquid medium storage tank is provided with an injection port 110 for injecting the liquid medium, and a sixth pipeline is provided between the liquid medium storage tank and the recovery tank to perform processes such as treatment of internal waste gas, if necessary.
In the maintenance process, the liquid medium in the whole system can flow back through the discharge pipeline on the evaporation device; alternatively, the liquid medium can be replaced by opening the fourth control valve 205 and the fifth control valve 206 simultaneously.
The fifth pipe 402 is further provided with a third branch pipe 405, a connection point between the third branch pipe 405 and the fifth pipe 402 is a fourth communication portion 407, the fifth pipe between the fourth communication portion 407 and the condensation tank 400 is provided with an eighth control valve 404, and the fifth pipe 402 between the fourth connection portion and the recovery tank 403 is provided with an eleventh control valve 406. The whole system can also carry out the air tightness inspection of the evaporation device 200 and the air tightness inspection of the spinning box; the specific operation of the airtightness check of the evaporation apparatus is: and opening the eighth control valve on the fifth pipeline, closing the fourth control valve 205, the seventh control valve 208, the ninth control valve 211, the tenth control valve 302 and the eleventh control valve 406, filling nitrogen through a third branch pipeline, and introducing the nitrogen into the evaporation device through the fourth pipeline to detect the air tightness of the evaporation device.
When the airtightness of the evaporation device and the spinning beam is detected, the fourth control valve, the seventh control valve and the eleventh control valve are closed by opening the eighth control valve. Nitrogen is filled in through a third branch pipeline, enters the evaporation device through a fourth pipeline, and enters the spinning box through a third pipeline.
The two detection structures can be kept for a period of time after being charged to a certain pressure, and finally the pressure change is detected by arranging the pressure gauge.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the above specific embodiments without departing from the scope of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention, which is defined by the appended claims.
Claims (10)
1. A polymer melt spinning processing apparatus heating system, comprising:
a liquid medium storage tank;
the evaporation device is provided with a first pipeline between the liquid medium storage tank and the evaporation device, the first pipeline is provided with an injection pump, and the first pipeline is used for guiding the liquid medium into the evaporation device from the liquid medium storage tank;
a second pipeline is arranged between the evaporation device and the spinning box and used for guiding a high-temperature gas medium generated by the evaporation device into the spinning box; and
the condensing tank, the spinning case with be provided with the third pipeline between the condensing tank, the third pipeline is arranged in leading-in condensing tank with the gaseous medium in the spinning case after the heat transfer, the condensing tank with be provided with the fourth pipeline between the evaporation plant, the fourth pipeline is arranged in leading-in evaporation plant with the liquid medium in the condensing tank.
2. The heating system of polymer melt spinning processing equipment of claim 1, further comprising a liquid medium circulation treatment unit, said liquid medium circulation treatment unit comprising a first branch line;
the first end part of the first branch pipeline is connected to the first pipeline on the rear side of the injection pump, and the second end part of the first branch pipeline is connected with the liquid medium storage tank; the liquid medium circulates in the liquid medium storage tank through the first pipeline, the injection pump and the first branch pipeline.
3. The heating system of claim 2, wherein a first control valve is disposed on the first pipeline between the liquid medium storage tank and the injection pump, a connection point of the first branch pipeline and the first pipeline is a first communication portion, a second control valve is disposed on the first pipeline behind the first communication portion, and a third control valve is disposed on the first branch pipeline.
4. The polymer melt spinning processing apparatus heating system of claim 1, further comprising a line venting unit, said line venting unit comprising:
an evacuation line disposed between the evaporation device and the liquid medium reservoir; and
a second branch line, a first end of the second branch line being connected to the first line, a second end of the second branch line being connected to the evacuation line;
the connection point of the second branch pipeline and the first pipeline is close to the liquid medium injection port of the evaporation device.
5. The heating system of polymer melt spinning processing equipment according to claim 4, wherein a connection point of the second branch line and the evacuation line is a second communication portion, a fourth control valve is disposed on the evacuation line between the second communication portion and the evaporation device, and a fifth control valve is disposed on the evacuation line between the second connection portion and the liquid medium storage tank; and a sixth control valve is arranged on the second branch pipeline, a connection point of the second branch pipeline and the first pipeline is a third communication part, and a seventh control valve is arranged on the first pipeline between the third communication part and the evaporation device.
6. The heating system of claim 4, wherein a pressure relief pipeline is arranged between the top of the evaporation device and the emptying pipeline, and a pressure relief valve and a pressure sensor are arranged on the pressure relief pipeline.
7. The heating system of the polymer melt spinning processing device according to claim 1, wherein a fifth pipeline is arranged on the top of the condensing tank, the fifth pipeline is connected with a recovery tank, a third branch pipeline is arranged on the fifth pipeline, a connection point of the third branch pipeline and the fifth pipeline is a fourth communication part, and an eighth control valve is arranged on the fifth pipeline between the fourth communication part and the condensing tank;
and a ninth control valve is arranged on the second pipeline, a tenth control valve is arranged on the third pipeline, and an eleventh control valve is arranged on a fifth pipeline between the fourth connecting part and the recovery tank.
8. The polymer melt spinning processing apparatus heating system of claim 1, wherein said liquid medium reservoir is provided with a nitrogen delivery conduit.
9. The polymer melt spinning process equipment heating system of claim 1, wherein said evaporator is a heat medium furnace.
10. The heating system of polymer melt spinning processing equipment according to claim 1, wherein said evaporation device, said spinning manifold and said condensing tank form a heating working unit, and a plurality of said heating working units are connected in parallel and disposed on a single said liquid medium storage tank.
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| CN201921379716.1U CN210736961U (en) | 2019-08-23 | 2019-08-23 | Heating system of polymer melt spinning processing equipment |
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| CN201921379716.1U CN210736961U (en) | 2019-08-23 | 2019-08-23 | Heating system of polymer melt spinning processing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110541203A (en) * | 2019-08-23 | 2019-12-06 | 神马实业股份有限公司 | Heating system of polymer melt spinning processing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541203A (en) * | 2019-08-23 | 2019-12-06 | 神马实业股份有限公司 | Heating system of polymer melt spinning processing equipment |
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