Condensed water recovery device
By designing a condensate recovery device, the problem of condensate waste in the ethylene plant was solved, and the recycling and resource conservation of condensate were realized.
Patent Information
- Application Number
- CN202422273364.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-09-14
AI Technical Summary
In the existing technology, the condensate produced by ethylene plants is not effectively utilized, resulting in waste and increased wastewater treatment burden.
A condensate recovery device was designed, including a collection tank, a collection device, a pneumatic condensate pump, an inlet pipe, an outlet pipe, an air inlet pipe, and an air outlet pipe. The collection device collects condensate into the collection tank, and the pneumatic condensate pump delivers the condensate to the water-using equipment to achieve recycling.
This enables the recycling of condensate, saves water resources, reduces sewage discharge, and lowers the burden of sewage treatment.
Smart Images
Figure CN223512539U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of condensate water recovery of ethylene device, specifically relates to a condensate water recovery device. BACKGROUND
[0002] Ethylene device is the petroleum chemical device that takes petroleum or natural gas as raw material, and mainly produces high purity ethylene and propylene, and simultaneously produces various petroleum chemical raw materials. Ethylene device usually includes cracking gas compressor unit, propylene compressor unit and ethylene compressor unit, and the driving of the three units is steam turbine driving. The steam condensate water produced by the operation of the steam turbines of the cracking gas compressor unit, the propylene compressor unit and the ethylene compressor unit is partly used for the sealing of the atmospheric safety valve of the steam turbine, and the other part is used for detection by the electric conductivity analyzer. The condensate water used for the sealing of the atmospheric safety valve of the steam turbine and detected by the electric conductivity analyzer is clean water, but in the prior art, it is generally discharged into sewage, which not only causes waste, but also increases the burden of sewage treatment. SUMMARY
[0003] In view of the above shortcomings of the prior art, the utility model provides a condensate water recovery device to improve the problem of waste of condensate water produced during ethylene preparation.
[0004] To achieve the above object and other related objects, the utility model provides a condensate water recovery device, which comprises a liquid collecting tank, a collecting device, a pneumatic drain pump, a water inlet pipe, a water outlet pipe, an air inlet pipe and an air outlet pipe. The top of the liquid collecting tank is provided with an opening; the collecting device is arranged at the opening and communicates with the liquid collecting tank; the pneumatic drain pump is arranged below the liquid collecting tank, and the pneumatic drain pump is provided with a water inlet, a water outlet, an air inlet and an air outlet; one end of the water inlet pipe communicates with the liquid collecting tank, and the other end communicates with the water inlet; one end of the water outlet pipe communicates with the water outlet, and the other end communicates with a water using device; one end of the air inlet pipe communicates with the air inlet, and the other end communicates with a gas supply device; one end of the air outlet pipe communicates with the air outlet, and the other end communicates with the atmosphere.
[0005] In an example of the utility model, the bottom of the liquid collecting tank is provided with a discharge pipe for discharging the liquid collecting tank.
[0006] In an example of the utility model, the discharge pipe is provided with a valve for controlling the discharge of condensate water.
[0007] In an example of the utility model, the sidewall of the liquid collecting tank is provided with an overflow pipe, and the communication position of the overflow pipe with the liquid collecting tank is located at the highest water level of the liquid collecting tank.
[0008] In an example of the utility model, the air supply device is a compressor, the air inlet is communicated with the exhaust port of the compressor through the air inlet pipe.
[0009] In an example of the utility model, the collecting device comprises a collecting part and a connecting part, the collecting part is a conical structure, the connecting part is a cylindrical structure, the small end surface of the conical structure is fixedly connected with one end of the cylindrical structure, and the other end of the cylindrical structure is fixedly arranged at the outer edge of the opening.
[0010] In an example of the utility model, one end of the air outlet pipe communicated with the atmosphere is connected to the connecting part.
[0011] In an example of the utility model, one end of the water inlet pipe communicated with the liquid collecting tank extends into the liquid collecting tank and is higher than the bottom wall of the liquid collecting tank.
[0012] In an example of the utility model, valves for controlling the flow of condensed water are arranged on the water inlet pipe and the water outlet pipe.
[0013] In an example of the utility model, a valve for controlling the passage of gas is arranged on the air inlet pipe.
[0014] The condensed water recycling device provided by the utility model recycles condensed water into the liquid collecting tank through the collecting device, the liquid collecting tank is communicated with the pneumatic drain pump through the water inlet pipe, the pneumatic drain pump is connected with the water using equipment through the water outlet pipe, the pneumatic drain pump transports the condensed water in the liquid collecting tank to the water using equipment, so that the condensed water is recycled, water resources can be saved, and the burden of sewage treatment can be reduced by avoiding discharge into sewage. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.
[0016] Figure 1 It is a structural schematic view of the condensed water recycling device in an embodiment of the utility model.
[0017] Element number explanation
[0018] 100, header tank; 110, opening; 120, emptying pipe; 130, overflow pipe; 200, collecting device; 210, collecting portion; 220, connecting portion; 300, pneumatic drain pump; 310, water inlet; 320, water outlet; 330, air inlet; 340, air outlet; 350, water inlet pipe; 360, water outlet pipe; 370, air inlet pipe; 380, air outlet pipe. DETAILED DESCRIPTION
[0019] The other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present application. The present application can also be implemented or applied in other different specific embodiments, and each detail in the present application can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present application are for describing specific specific embodiments, and are not intended to limit the protection scope of the present application. The test methods not specified in the following embodiments are usually performed under conventional conditions or under the conditions recommended by the manufacturers.
[0020] It should be understood that the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present application are only for the convenience of clear description, and are not intended to limit the scope of the present application. The change or adjustment of the relative relationship without substantial change of the technical content is also regarded as the scope of the present application.
[0021] Referring to Figure 1 The present application provides a condensate water recovery device, which comprises a header tank 100, a collecting device 200, a pneumatic drain pump 300, a water inlet pipe 350, a water outlet pipe 360, an air inlet pipe 370 and an air outlet pipe 380. The collecting device 200 collects the condensate water into the header tank 100, the header tank 100 is communicated with the pneumatic drain pump 300 through the water inlet pipe 350, and the condensate water is delivered to a water-using equipment through the water outlet pipe 360, so as to realize the recovery and utilization of the condensate water. Not only the water resource can be saved, but also the burden of sewage treatment can be avoided by avoiding discharging into the sewage.
[0022] Referring to Figure 1The liquid collecting tank 100 can be any tank structure, for example, a cube, a cuboid or a cylinder, etc. In an embodiment, the liquid collecting tank 100 is a cuboid, and the top of the liquid collecting tank 100 is provided with an opening 110 for the condensed water to flow into the tank. The size of the liquid collecting tank 100 is not limited herein and can be adjusted according to actual needs. Specifically, the liquid collecting tank 100 includes a bottom wall, a top wall and a side wall arranged between the bottom wall and the top wall, one end of the side wall is fixedly connected with the bottom wall, and the other end of the side wall is fixedly connected with the top wall. The opening 110 is arranged on the top wall of the liquid collecting tank 100. The specific arrangement position of the opening 110 is not limited, for example, the opening 110 can be arranged at the center position of the top wall, can be arranged at a position close to the side wall, or can be arranged at one corner of the top wall, as long as it does not affect the installation of other devices. The size of the opening 110 is also not limited herein and can be adjusted according to actual needs, for example, if the flow of condensed water generated upstream is large, the size of the opening 110 can be correspondingly increased; if the flow of condensed water generated upstream is small, the size of the opening 110 can be correspondingly decreased. The material of the liquid collecting tank 100 is not limited in the present application, for example, the material for manufacturing the liquid collecting tank 100 can be selected from stainless steel, polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE), polyvinyl chloride (PVC), epoxy resin, glass fiber reinforced plastic (FRP), high-density polyethylene (HDPE), etc. The above materials have good chemical stability and physical properties, which can ensure the long-term stable operation and safety of the system.
[0023] Please refer to Figure 1 In an embodiment, the collecting device 200 is arranged at the opening 110, and the collecting device 200 communicates with the liquid collecting tank 100, so that the condensed water can flow into the liquid collecting tank 100 through the collecting device 200. The shape of the collecting device 200 is not limited herein, for example, the collecting device 200 can be any shape such as a cuboid, a cube, a cylinder, a cone, etc. In the present embodiment, the collecting device 200 includes a collecting part 210 and a connecting part 220, the collecting part 210 is a conical structure, the connecting part 220 is a cylindrical structure, the small end surface of the conical structure is fixedly connected with one end of the cylindrical structure, and the other end of the cylindrical structure is fixedly arranged at the outer edge of the opening 110. The collecting part 210 is arranged in a conical structure, and the large end surface of the conical structure faces upward, which is helpful to prevent the condensed water from overflowing or splashing during collection, so that the collection process of the condensed water is more accurate and clean. The size of the collecting device 200 is not limited herein and can be adjusted according to actual needs.
[0024] Please refer to Figure 1The pneumatic drain pump 300 is arranged on one side of the collecting tank 100, and is used to deliver the condensed water collected by the collecting tank 100 to the water-using equipment. In an embodiment, the pneumatic drain pump 300 is arranged below the collecting tank 100, and in other embodiments, the pneumatic drain pump 300 can also be arranged on one side of the sidewall of the collecting tank 100. The working principle of the pneumatic drain pump 300 is to drive the reciprocating movement of the diaphragm in the pump by using the gas source, so as to realize the suction and discharge of the fluid. The pneumatic drain pump 300 allows short-time dry running, and will not damage the pump body even in the absence of liquid, and the water discharge amount of the pump can be controlled by adjusting the gas source pressure. In the present application, the pneumatic drain pump 300 is provided with a water inlet 310, a water outlet 320, an air inlet 330 and an air outlet 340. One end of a water inlet pipe 350 is in communication with the collecting tank 100, and the other end of the water inlet pipe 350 is in communication with the water inlet 310. One end of a water outlet pipe 360 is in communication with the water outlet 320, and the other end of the water outlet pipe 360 is in communication with the water-using equipment. The water inlet pipe 350 and the water outlet pipe 360 are both provided with valves for controlling the flow of condensed water, and the valves are in a normally open state during normal operation. When the pneumatic drain pump 300 fails and needs to be repaired, the valves on the water inlet pipe 350 and the water outlet pipe 360 are closed to prevent water from flowing out of the water inlet pipe 350 and the water outlet pipe 360 and polluting the surrounding environment.
[0025] Further, in order to prevent impurities entering the collecting tank 100 from flowing into the pneumatic drain pump 300 and the water-using equipment through the pipeline, the end of the water inlet pipe 350 in communication with the collecting tank 100 can be inserted into the collecting tank 100 and be higher than the bottom wall of the collecting tank 100, and the impurities can be deposited at the bottom of the collecting tank 100 and be discharged through the emptying pipe 120. Further, a filter can also be arranged on the water inlet pipe 350 to prevent impurities from entering the pneumatic drain pump 300 and the water-using equipment, so as to avoid affecting the normal use of the equipment.
[0026] Please refer to Figure 1In an embodiment, one end of the air inlet pipe 370 is in communication with the air inlet 330, and the other end of the air inlet pipe 370 is in communication with a gas supply device. A valve is arranged on the air inlet pipe 370 to control the flow of gas. The flow of driving gas can be adjusted according to actual needs. In the present application, the flow of condensate water generated by the upstream device is constant. Therefore, the drainage capacity of the pneumatic drain pump 300 can be set according to the flow of condensate water, so that the drainage capacity of the pneumatic drain pump 300 is consistent with the flow of condensate water, preventing the water in the liquid collection tank 100 from being too little or too much to affect the operation of the entire recovery device. For example, when the flow of condensate water generated by the upstream is large, the air pressure at the air inlet 330 can be increased by adjusting the valve on the air inlet pipe 370, so as to further increase the drainage capacity of the pneumatic drain pump 300. When the flow of condensate water generated by the upstream is small, the air pressure at the air inlet 330 can be reduced by adjusting the valve on the air inlet pipe 370, so as to further reduce the drainage capacity of the pneumatic drain pump 300. In the present application, the type of the gas supply device is not limited. The gas supply device can be any device that can provide driving gas for the pneumatic drain pump 300. In the present embodiment, the gas supply device is a compressor. The air inlet 330 is in communication with the exhaust port of the compressor through the air inlet pipe 370, and the gas discharged by the compressor is used to drive the pneumatic drain pump 300. One end of the air outlet pipe 380 is in communication with the air outlet 340, and the other end of the air outlet pipe 380 is in communication with the atmosphere. In order to prevent water in the air outlet pipe 380 from being sprayed out to pollute the surrounding environment when the pneumatic drain pump 300 is started or maintained, the end of the air outlet pipe 380 in communication with the atmosphere is connected to the connecting portion 220, so as to spray the water in the air outlet pipe 380 into the liquid collection tank 100.
[0027] Please refer to Figure 1 In an embodiment, the bottom of the liquid collection tank 100 is provided with a drain pipe 120 for emptying the liquid collection tank 100. The drain pipe 120 is used to completely drain the condensate water in the liquid collection tank 100 when the recovery device is maintained. The drain pipe 120 transports the drained condensate water to a waste water pipeline. A valve for controlling the discharge of condensate water is arranged on the drain pipe 120. When the recovery device is in use, the valve is in a normally closed state. When the recovery device needs to be maintained, the valve on the drain pipe 120 is opened to empty the liquid collection tank 100. In the present embodiment, an overflow pipe 130 is further arranged on the sidewall of the liquid collection tank 100. The communication position of the overflow pipe 130 with the liquid collection tank 100 is located at the highest water level set in the liquid collection tank 100. When the pneumatic drain pump 300 fails and the condensate water in the liquid collection tank 100 cannot be timely transported to the water using device, the condensate water can be discharged to the waste water pipeline through the overflow pipe 130, preventing the condensate water from overflowing to pollute the surrounding environment. In the present application, the materials of the water inlet pipe 350, the water outlet pipe 360, the air inlet pipe 370, the air outlet pipe 380, the drain pipe 120 and the overflow pipe 130 are not limited. For example, the materials of the pipes can be selected from aluminum alloy, stainless steel, plastic and the like according to actual needs.
[0028] The condensate water recycling device provided by the utility model recycles the condensate water into the collecting tank through the collecting device, the collecting tank is communicated with the pneumatic drain pump through the water inlet pipeline, the pneumatic drain pump is connected with the water using equipment through the water outlet pipe, the pneumatic drain pump conveys the condensate water in the collecting tank to the water using equipment to realize the recycling of the condensate water, not only water resources can be saved, but also the burden of sewage treatment can be avoided by avoiding the discharge into the sewage.
[0029] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art under the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.
Claims
1. A condensate recovery device, characterized in that, include: The liquid collection tank has an opening at the top and an overflow pipe on its side wall. The overflow pipe is connected to the liquid collection tank at the highest water level set in the liquid collection tank. A collection device is provided at the opening, and the collection device is connected to the liquid collection tank; A pneumatic drain pump is located below the liquid collection tank. The pneumatic drain pump is equipped with a water inlet, a water outlet, an air inlet, and an air outlet. The inlet pipe has one end connected to the liquid collection tank and the other end connected to the water inlet. The end of the inlet pipe connected to the liquid collection tank extends into the liquid collection tank and is higher than the bottom wall of the liquid collection tank. A filter is installed on the inlet pipe. A water outlet pipe, one end of which is connected to the water outlet, and the other end of which is connected to the water-using equipment; An air intake pipe, one end of which is connected to the air inlet, and the other end of which is connected to the air supply device; The vent pipe has one end connected to the vent and the other end connected to the atmosphere.
2. The condensate recovery device according to claim 1, characterized in that, The bottom of the liquid collection tank is provided with an emptying pipe for emptying the liquid collection tank.
3. The condensate recovery device according to claim 2, characterized in that, The drain pipe is equipped with a valve for controlling the discharge of condensate.
4. The condensate recovery device according to claim 1, characterized in that, The air supply device is a compressor, and the air inlet is connected to the compressor's exhaust port through the air inlet pipe.
5. The condensate recovery device according to claim 1, characterized in that, The collecting device includes a collecting part and a connecting part. The collecting part is a conical structure, and the connecting part is a cylindrical structure. The small end face of the conical structure is fixedly connected to one end of the cylindrical structure, and the other end of the cylindrical structure is fixedly disposed on the outer edge of the opening.
6. The condensate recovery device according to claim 5, characterized in that, The end of the vent pipe that communicates with the atmosphere is connected to the connecting part.
7. The condensate recovery device according to claim 1, characterized in that, Both the inlet pipe and the outlet pipe are equipped with valves for controlling the flow of condensate.
8. The condensate recovery device according to claim 1, characterized in that, The air intake pipe is equipped with a valve to control the flow of gas.