Automatic collection and continuous output system of vinyl chloride condensate

Abstract

The application discloses a kind of automatic collection and continuous output system of vinyl chloride condensate, it is related to the technical field of automatic collection and continuous output processing of condensate in calcium carbide method vinyl chloride production system.The system uses height difference or pressure difference to make condensate flow to collection tank, after the condensate in collection tank reaches certain liquid level height, it is transported to condensate collection header tank using diaphragm pump, liquid in condensate collection header tank is transported to polymer stripping column, and the condensate containing vinyl chloride recovers vinyl chloride in it to gas holder in polymer stripping column, and qualified condensate is discharged, realizes the automatic discharge and continuous output operation function of vinyl chloride condensate, condensate is completely closed and discharged automatically, without manual operation, without vinyl chloride condensate external pollution environment, effectively protect environment and prevent personnel poisoning.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic collection and continuous output processing of condensate in calcium carbide method vinyl chloride production system, and particularly relates to an automatic collection and continuous output system for vinyl chloride condensate. BACKGROUND

[0002] In the production of vinyl chloride by the calcium carbide method, after the vinyl chloride gas passes through the combination tower and the caustic washing tower and the hydrogen chloride is removed by using production water and lye, the vinyl chloride gas contains a large amount of water mist. The water mist is condensed in the conveying pipeline and the cooler. The condensate containing vinyl chloride needs to be discharged regularly to ensure the quality of the finished product. The production of vinyl chloride by the calcium carbide method involves the discharge of condensate at multiple locations, including the conversion to the compression guide, the front of the machine, the guide along the way from the front of the machine to the vinyl chloride gas tank, the vinyl chloride gas tank vapor-liquid separator, the vinyl chloride gas tank overflow water, the vinyl chloride gas tank blowdown, the monomer storage tank blowdown, the waste lye tank blowdown, etc. The condensate is generated at a low pressure, which is generally controlled at 1-4 KPa. Therefore, it is not possible to use the self-flowing method for unified recovery. In addition, the condensate contains vinyl chloride, and safety regulations do not allow the use of underground closed storage tanks. All condensate recovered by open recovery contains a small amount of vinyl chloride, which does not meet the environmental protection requirements. Therefore, the general practice is to manually discharge all condensate directly into a ditch, and the manual discharge is operated entirely by experience. In addition to the high labor intensity of manual operation, the discharged vinyl chloride gas can also cause poisoning of personnel. SUMMARY

[0003] To solve the above technical problems, the present application provides an automatic collection and continuous output system for vinyl chloride condensate. The condensate generated in the production system flows into the condensate collection tank under the action of the height difference or the pressure difference, and is transported to the collection tank by the diaphragm pump, thereby realizing the automatic collection and continuous output of the condensate.

[0004] To achieve the technical purpose, the application adopts the following scheme: the automatic collection and continuous output system of vinyl chloride condensate liquid, comprising a cooler condensate liquid collection and output subsystem, a gas tank condensate liquid collection and output subsystem and a polymer stripping tower; the gas tank condensate liquid collection and output subsystem comprises a gas tank guide liquid collection and output module, a waste lye tank condensate liquid collection module, a gas tank overflow water collection and output module, a storage tank condensate liquid collection and output module and a gas tank condensate liquid collection tank, wherein: the gas tank guide liquid collection and output module comprises a gas tank air inlet pipe, a guide liquid pipe, a guide liquid collection tank and a first diaphragm pump, the gas tank air inlet pipe is in communication with one end of the guide liquid pipe, the other end of the guide liquid pipe is in communication with the guide liquid collection tank, and the guide liquid collection tank is in communication with the first diaphragm pump through a pipeline; the waste lye tank condensate liquid collection module comprises a waste lye tank and a second diaphragm pump, and the waste lye tank is in communication with the second diaphragm pump through a pipeline; the storage tank condensate liquid collection and output subsystem comprises a storage tank condensate liquid collection tank and a third diaphragm pump, and the storage tank condensate liquid collection tank is connected with the third diaphragm pump through a pipeline; the gas tank overflow water collection and output module comprises a gas tank, a steam-water separator, a first collection tank and a fourth diaphragm pump, the gas tank is connected with the steam-water separator through a pipeline, the steam-water separator is provided with a blowdown pipe, the blowdown pipe is in communication with the first collection tank, and the first collection tank is in communication with the fourth diaphragm pump through a pipeline; the gas tank is provided with an overflow water pipe, and the overflow water pipe, the first diaphragm pump, the second diaphragm pump, the third diaphragm pump and the fourth diaphragm pump are respectively in communication with the gas tank condensate liquid collection tank; the cooler condensate liquid output subsystem comprises a cooler, a second collection tank, a fifth diaphragm pump and a cooler condensate liquid collection tank, the condensate liquid outlet of the cooler is connected with the second collection tank through a pipeline, the second collection tank is connected with the fifth diaphragm pump through a pipeline, and the fifth diaphragm pump is connected with the cooler condensate liquid collection tank through a pipeline; the cooler condensate liquid collection tank and the gas tank condensate liquid collection tank are respectively connected with the polymer stripping tower through pipelines.

[0005] Compared with the prior art, the application has the beneficial effects that: the system uses the height difference or pressure difference to make the condensate liquid flow to the collection tank, when the condensate liquid in the collection tank reaches a certain liquid level height, the diaphragm pump is used to transport the condensate liquid to the condensate liquid collection tank, the liquid in the condensate liquid collection tank is transported to the polymer stripping tower, the condensate liquid containing vinyl chloride recovers the vinyl chloride in the polymer stripping tower to the gas tank, and the qualified condensate liquid is discharged, so that the automatic discharge and continuous output operation function of the vinyl chloride condensate liquid are realized, the condensate liquid is automatically discharged in a closed manner without manual operation, the vinyl chloride condensate liquid is not discharged to pollute the environment, the environment is effectively protected, and the poisoning of personnel is prevented.

[0006] Further, the inlet height of the gas tank condensate liquid collection tank, the guide liquid collection tank, the waste lye tank, the storage tank condensate liquid collection tank, the first collection tank, the second collection tank and the cooler condensate liquid collection tank is higher than the outlet height thereof, so that the condensate liquid discharge pipe is filled with liquid, and the vinyl chloride gas is prevented from being discharged to the diaphragm pump outlet.

[0007] Further, the gas cabinet condensate collection tank, the guide condensate collection tank, the waste alkali tank, the storage tank condensate collection tank, the first collection tank, the second collection tank and the cooler condensate collection tank are respectively provided with liquid level meters.

[0008] Further, the nitrogen inlet pipe is further provided, the first diaphragm pump, the second diaphragm pump, the third diaphragm pump, the fourth diaphragm pump and the fifth diaphragm pump are respectively connected with N2 cut-off valves, the N2 cut-off valves are connected with the nitrogen inlet pipe; the diaphragm pumps use nitrogen as power, effectively avoiding the removal of chlorine ethylene and oxygen, and eliminating the risk of explosion.

[0009] Further, the diaphragm pumps connected with the N2 cut-off valves and the liquid level meters of the collection tanks connected with the diaphragm pumps are interlocked; the N2 cut-off valves are connected with the liquid level meters of the adjacent collection tanks, when the liquid level of the collection tank reaches a certain height, the N2 cut-off valve is opened, and the diaphragm pump is started, when the liquid level of the collection tank is lower than a certain height, the N2 cut-off valve is closed, and the diaphragm pump stops running.

[0010] Further, the outlets of the first diaphragm pump, the second diaphragm pump, the third diaphragm pump, the fourth diaphragm pump and the fifth diaphragm pump are respectively provided with check valves to prevent backflow of the condensate.

[0011] Further, the first collection tank is provided with a first balance pipe, and the first balance pipe is connected with the gas cabinet inlet pipe.

[0012] Further, the cooler is provided with a cooler inlet pipe, the cooler inlet pipe is provided with a second balance pipe and a third balance pipe, the second balance pipe is connected with the cooler condensate collection tank, and the third balance pipe is connected with the second collection tank; the pressure in the second collection tank and the cooler condensate collection tank is consistent with the pressure of the condensate discharge device, and the condensate is discharged smoothly.

[0013] Further, the gas cabinet condensate collection output subsystem further comprises a first centrifugal pump, the gas cabinet condensate collection tank is connected with the first centrifugal pump through a pipeline, and the first centrifugal pump is connected with the polymer stripping tower through a pipeline.

[0014] Further, the cooler condensate output subsystem further comprises a second centrifugal pump, the cooler condensate collection tank is connected with the second centrifugal pump through a pipeline, and the second centrifugal pump is connected with the polymer stripping tower through a pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure schematic view of the automatic collection and continuous output system of the chlorine ethylene condensate provided by the embodiment of the application is shown.

[0016] 1, gas cabinet inlet pipe; 2, guide pipe; 3, guide pipe collection tank; 4, first diaphragm pump; 5, first liquid level meter; 6, first nitrogen cut-off valve; 7, nitrogen inlet pipe; 8, waste alkali tank; 9, second diaphragm pump; 10, second liquid level meter; 11, second nitrogen cut-off valve; 12, storage tank condensate collection tank; 13, third diaphragm pump; 14, third nitrogen cut-off valve; 15, third liquid level meter; 16, gas cabinet; 17, steam-water separator; 18, blowdown pipe; 19, first collection tank; 20, fourth diaphragm pump; 21, first balance pipe; 22, fourth nitrogen cut-off valve; 23, fourth liquid level meter; 24, overflow pipe; 25, gas cabinet condensate collection tank; 26, fifth liquid level meter; 27, first centrifugal pump; 28, second balance pipe; 29, cooler; 30, inlet pipe; 31, condensate outlet pipe; 32, second collection tank; 33, fifth diaphragm pump; 34, cooler condensate collection tank; 35, second centrifugal pump; 36, sixth liquid level meter; 37, fifth nitrogen cut-off valve; 38, third balance pipe; 39, seventh liquid level meter. DETAILED DESCRIPTION

[0017] In order to fully understand the objects, features and effects of the present application, the present application will be described in detail with reference to the following specific embodiments, but the present application is not limited to the embodiments.

[0018] As shown in Figure 1 The present application provides an automatic collection and continuous output system for vinyl chloride condensate, which is composed of a cooler condensate collection and output subsystem, a gas cabinet condensate collection and output subsystem, a nitrogen inlet pipe 7, and a polymer stripping tower.

[0019] The gas cabinet condensate collecting and outputting subsystem is composed of a gas cabinet guide drip collecting and outputting module, a waste lye tank condensate collecting module, a gas cabinet overflow water collecting and outputting module, a storage tank condensate collecting and outputting module and a gas cabinet condensate collecting tank 25. The gas cabinet guide drip collecting and outputting module is composed of a gas cabinet inlet pipe 1, a conversion-to-compression pipe, a guide drip pipe 2, a guide drip collecting tank 3 and a first diaphragm pump 4. The gas cabinet inlet pipe 1 is in communication with the guide drip pipe 2, the guide drip pipe 2 is in communication with the guide drip collecting tank 3, the guide drip collecting tank 3 is provided with a first liquid level meter 5, the guide drip collecting tank 3 is connected with the first diaphragm pump 4 through a pipe, the first diaphragm pump 4 is connected with a first nitrogen cut-off valve 6, the first nitrogen cut-off valve 6 is connected with a nitrogen inlet pipe 7, and the first nitrogen cut-off valve 6 is provided with interlocking with the first liquid level meter 5. The vinyl chloride condensate enters the guide drip collecting tank 3 along the gas cabinet guide drip pipe 2, the vinyl chloride gas in the pipe returns to the gas cabinet inlet pipe 1 along the guide drip pipe 2, the pressure balance in the guide drip collecting tank 3 is maintained, and the vinyl chloride condensate is ensured to flow to the guide drip collecting tank 3 naturally. When the liquid level in the guide drip collecting tank 3 reaches a set high liquid level, the first nitrogen cut-off valve 6 is opened, nitrogen gas is used as the power of the diaphragm pump, enters the first diaphragm pump 4 through the nitrogen inlet pipe 7, the first diaphragm pump 4 is started automatically, and the vinyl chloride condensate is transported outwards through the first diaphragm pump 4. When the liquid level in the guide drip collecting tank 3 reaches a set low liquid level, the first nitrogen cut-off valve 6 is closed, and the first diaphragm pump 4 stops running.

[0020] The waste lye tank condensate collecting module is composed of a waste lye tank 8 and a second diaphragm pump 9, etc. The waste lye tank 8 is connected with the second diaphragm pump 9 through a pipe, the waste lye tank 8 is provided with a second liquid level meter 10, the second diaphragm pump 9 is connected with a second nitrogen cut-off valve 11, the second nitrogen cut-off valve 11 is connected with the nitrogen inlet pipe 7, and the second nitrogen cut-off valve 11 is provided with interlocking with the second liquid level meter 10. When the liquid level in the waste lye tank 8 reaches a set high liquid level, the second nitrogen cut-off valve 11 is opened, the second diaphragm pump 9 is started automatically, the second diaphragm pump 9 transports the vinyl chloride condensate in the waste lye tank 8 outwards, and the automatic collection of the vinyl chloride condensate in the waste lye tank 8 is completed. When the liquid level in the waste lye tank 8 reaches a set low liquid level, the second nitrogen cut-off valve 11 is closed, and the second diaphragm pump 9 stops running.

[0021] The tank condensate collection output subsystem is composed of a tank condensate collection tank 12, a third diaphragm pump 13 and the like. The tank condensate collection tank 12 is connected to the third diaphragm pump 13 through a pipeline. The tank condensate collection tank 12 is provided with a third liquid level meter 15. The third diaphragm pump 13 is connected to a third nitrogen shutoff valve 14. The third nitrogen shutoff valve 14 is connected to the nitrogen inlet pipe 7. The third nitrogen shutoff valve 14 is provided with an interlocking device with the third liquid level meter 15. The tank condensate collection tank 12 receives the vinyl chloride condensate of the monomer tank. When the liquid level of the tank condensate collection tank 12 reaches a set high liquid level, the third nitrogen shutoff valve 14 is opened, and the third diaphragm pump 13 is started. The third diaphragm pump 13 transports the liquid level in the tank condensate collection tank 12 outward. When the liquid level of the tank condensate collection tank 12 reaches a set low liquid level, the third nitrogen shutoff valve 14 is closed, and the third diaphragm pump 13 stops running.

[0022] The gas cabinet overflow water collection output module is composed of a gas cabinet 16, a steam-water separator 17, a first collection tank 19 and a fourth diaphragm pump 20 and the like. The gas cabinet 16 is connected to the steam-water separator 17 through a pipeline. The steam-water separator 17 is provided with a blowdown pipe 18. The blowdown pipe 18 is communicated with the first collection tank 19. The inlet height of the first collection tank 19 is higher than the outlet height of the first collection tank 19. The blowdown pipe 18 is arranged in a U shape to ensure that the condensate of the steam-water separator 17 enters the first collection tank 19 and the vinyl chloride gas cannot enter. The first collection tank 19 is provided with a first balance pipe 21. The first balance pipe 21 is communicated with the gas cabinet inlet pipe 1 to ensure that the pressure in the first collection tank 19 is stable and no vinyl chloride gas is discharged to the atmosphere to realize closed circulation. The first collection tank 19 is communicated with the fourth diaphragm pump 20 through a pipeline. The fourth diaphragm pump 20 is connected to a fourth nitrogen shutoff valve 22. The fourth nitrogen shutoff valve 22 is connected to the nitrogen inlet pipe 7. The first collection tank 19 is provided with a fourth liquid level meter 23. The fourth liquid level meter 23 is interlocked with the fourth nitrogen shutoff valve 22. The vinyl chloride condensate generated in the steam-water separator 17 enters the first collection tank 19 by the self-flowing mode. When the liquid level of the first collection tank 19 reaches a set high liquid level, the fourth nitrogen shutoff valve 22 is opened, and the fourth diaphragm pump 20 is started to transport the vinyl chloride condensate outward. When the liquid level of the first collection tank 19 reaches a set low liquid level, the fourth nitrogen shutoff valve 22 is closed, and the fourth diaphragm pump 20 stops running.

[0023] The gas holder 16 is provided with an overflow pipe 24, which is communicated with a gas holder condensate collecting tank 25, and the first diaphragm pump 4, the second diaphragm pump 9, the third diaphragm pump 13 and the fourth diaphragm pump 20 are communicated with the gas holder condensate collecting tank 25 through pipes respectively. The condensate in the guide pipe collecting tank 3, the waste alkali tank 8, the storage tank condensate collecting tank 12 and the first collecting tank 19 and the overflow water of the gas holder are collected in the gas holder condensate collecting tank 25. The gas holder condensate collecting tank 25 is provided with a fifth liquid level meter 26, and the gas holder condensate collecting tank 25 is connected with a first centrifugal pump 27 through a pipe, and the first centrifugal pump 27 is interlocked with the fifth liquid level meter 26. When the liquid level in the gas holder condensate collecting tank 25 reaches a set high liquid level, the first centrifugal pump 27 is started to transport the liquid in the gas holder condensate collecting tank 25 outward; when the liquid level in the gas holder condensate collecting tank 25 is lower than a set low liquid level, the first centrifugal pump 27 stops running. The gas holder condensate collecting tank 25 is provided with a second balance pipe 28, which is communicated with the gas holder inlet pipe 1, so as to ensure that the pressure of the gas holder condensate collecting tank 25 is stable and no vinyl chloride gas is discharged to the atmosphere.

[0024] The cooler condensate output subsystem is composed of a cooler 29, a second collecting tank 32, a fifth diaphragm pump 33 and a cooler condensate collecting tank 34. The cooler 29 is provided with an inlet pipe 30 and a condensate outlet pipe 31, the condensate outlet pipe 31 is connected with the second collecting tank 32, the second collecting tank 32 is connected with the fifth diaphragm pump 33 through a pipe, the fifth diaphragm pump 33 is connected with the cooler condensate collecting tank 34 through a pipe, and the cooler condensate collecting tank 34 is connected with a second centrifugal pump 35 through a pipe. The second collecting tank 32 is provided with a sixth liquid level meter 36, the fifth diaphragm pump 33 is connected with a fifth nitrogen cut-off valve 37, the fifth nitrogen cut-off valve 37 is connected with the nitrogen inlet pipe 7, and the fifth nitrogen cut-off valve 37 is provided with an interlocking device with the sixth liquid level meter 36. When the liquid level in the second collecting tank 32 reaches a set high liquid level, the fifth nitrogen cut-off valve 37 is opened, the fifth diaphragm pump 33 is started to transport the liquid in the second collecting tank 32 to the cooler condensate collecting tank 34; when the liquid level in the second collecting tank 32 reaches a set low liquid level, the fifth nitrogen cut-off valve 37 is closed, and the fifth diaphragm pump 33 stops running.

[0025] The condensate outlet pipe 31 of the cooler 29 has a height higher than the inlet height of the second collecting tank 32, and the two have a height difference, and the condensate outlet pipe 31 is in a U-shaped pipe structure, so as to ensure that the condensate enters the second collecting tank 32, and the vinyl chloride gas cannot enter. The second collecting tank 32 is provided with a third balance pipe 38, which is communicated with the cooler inlet pipe 30, so as to ensure that the pressure of the second collecting tank 32 is stable and no vinyl chloride gas is discharged to the atmosphere, and realize closed circulation.

[0026] Since in actual production process, there are more than one cooler 29, when the positions of the multiple coolers are not convenient to converge to one collecting tank, the condensate is first converged to multiple second collecting tanks 32, and then converged from the second collecting tanks 32 to the cooler condensate collecting tank 34. The cooler condensate collecting tank 34 is provided with a seventh liquid level meter 39, and the seventh liquid level meter 39 is provided with an interlocking device with the second centrifugal pump 35; when the liquid level in the cooler condensate collecting tank 34 reaches a set high liquid level, the second centrifugal pump 35 is started to transport the liquid in the cooler condensate collecting tank 34 outward; when the liquid level in the cooler condensate collecting tank 34 reaches a set low liquid level, the second centrifugal pump 35 stops running.

[0027] The first centrifugal pump 27 and the second centrifugal pump 35 are connected with the polymer stripping tower through pipelines respectively, and the condensate containing vinyl chloride is recycled to recover the vinyl chloride in the polymer stripping tower to a gas tank, and the qualified condensate is discharged, so that the automatic discharge and continuous output operation function of the vinyl chloride condensate are realized.

[0028] Compared with the prior art, the beneficial effects of the present application are that the vinyl chloride condensate realizes closed automatic collection and continuous output, solves the problems that the vinyl chloride condensate in the low-pressure part of the calcium carbide method vinyl chloride production is dispersed in position, can only be discharged manually, and the vinyl chloride pollutes the atmosphere during the discharge process, causes personnel poisoning and pollution of the environment by the condensate containing vinyl chloride, the vinyl chloride condensate in the low-pressure part of the calcium carbide method vinyl chloride production is collected dispersedly, the interlocking relationship between the collecting tank and the diaphragm pump power nitrogen gas cut-off valve is realized to stabilize the liquid level of the condensate in the collecting tank, and nitrogen gas is used as the power of the pump to avoid the contact between the vinyl chloride and oxygen when the pump is damaged, so that the production safety is ensured, all the condensate is uniformly recycled to a large condensate collecting tank, and then pumped to the stripping tower by a centrifugal pump to realize the continuous output of the vinyl chloride condensate.

[0029] Finally, it should be noted that: the above-mentioned is only the preferred embodiment of the present application, of course, the person skilled in the art can modify and change the present application, if these modifications and changes belong to the scope of the claims of the present application and its equivalent technology, all should be considered as the protection scope of the present application.

Claims

1. An automatic collection and continuous output system for vinyl chloride condensate, comprising a cooler condensate collection and output subsystem, a gas holder condensate collection and output subsystem, and a polymerization stripping tower; characterized in that, The gas holder condensate collection and output subsystem includes a gas holder drain collection and output module, a waste alkali tank condensate collection module, a gas holder overflow water collection and output module, a storage tank condensate collection and output module, and a gas holder condensate collection tank, wherein: The gas holder drain collection and output module includes a gas holder inlet pipe, a drain pipe, a drain collection tank and a first diaphragm pump. One end of the gas holder inlet pipe is connected to the drain pipe, and the other end of the drain pipe is connected to the drain collection tank. The drain collection tank is connected to the first diaphragm pump through a pipe. The waste alkali tank condensate collection module includes a waste alkali tank and a second diaphragm pump, with the waste alkali tank connected to the second diaphragm pump via a pipeline. The condensate collection and output subsystem for the storage tank includes a condensate collection tank and a third diaphragm pump. The condensate collection tank is connected to the third diaphragm pump via a pipeline. The overflow water collection and output module of the gas holder includes a gas holder, a steam-water separator, a first collection tank and a fourth diaphragm pump. The gas holder is connected to the steam-water separator through a pipeline. The steam-water separator is equipped with a drain pipe, which is connected to the first collection tank. The first collection tank is connected to the fourth diaphragm pump through a pipeline. The gas holder is equipped with an overflow pipe, and the overflow pipe, the first diaphragm pump, the second diaphragm pump, the third diaphragm pump, and the fourth diaphragm pump are respectively connected to the gas holder condensate collection tank; The cooler condensate output subsystem includes a cooler, a second collection tank, a fifth diaphragm pump, and a cooler condensate collection tank. The cooler's condensate outlet is connected to the second collection tank via a pipeline, the second collection tank is connected to the fifth diaphragm pump via a pipeline, and the fifth diaphragm pump is connected to the cooler condensate collection tank via a pipeline. The cooler condensate collection tank and the gas holder condensate collection tank are respectively connected to the polymerization stripping tower via pipelines; The gas holder condensate collection tank, the drain collection tank, the waste alkali tank, the storage tank condensate collection tank, the first collection tank, the second collection tank, and the cooler condensate collection tank are each equipped with a level gauge. The gas holder condensate collection and output subsystem also includes a first centrifugal pump. The gas holder condensate collection tank is connected to the first centrifugal pump via a pipeline, and the first centrifugal pump is connected to the polymerization stripping tower via a pipeline. The cooler condensate output subsystem also includes a second centrifugal pump. The cooler condensate collection tank is connected to the second centrifugal pump via a pipeline, and the second centrifugal pump is connected to the polymerization stripping tower via a pipeline. The inlet heights of the gas holder condensate collection tank, the drain collection tank, the waste alkali tank, the storage tank condensate collection tank, the first collection tank, the second collection tank, and the cooler condensate collection tank are all higher than their own outlet heights. It also includes a nitrogen inlet pipe, and the first diaphragm pump, the second diaphragm pump, the third diaphragm pump, the fourth diaphragm pump and the fifth diaphragm pump are respectively connected to N2 shut-off valves, which are connected to the nitrogen inlet pipe; The cooler is equipped with a cooler inlet pipe, and a second balance pipe and a third balance pipe are installed on the cooler inlet pipe. The second balance pipe is connected to the cooler condensate collection tank, and the third balance pipe is connected to the second collection tank.

2. The automatic collection and continuous output system for vinyl chloride condensate according to claim 1, characterized in that, The diaphragm pump connected to the N2 shut-off valve and the level gauge of the collection tank connected to the diaphragm pump are interlocked.

3. The automatic collection and continuous output system for vinyl chloride condensate according to claim 1, characterized in that, The outlets of the first, second, third, fourth, and fifth diaphragm pumps are all equipped with check valves.

4. The automatic collection and continuous output system for vinyl chloride condensate according to claim 1, characterized in that, The first collection tank is equipped with a first balance pipe, which is connected to the gas inlet pipe of the gas holder.

Images