Integrated oxygen removal device for MTO system

Abstract

The utility model discloses an integrated oxygen removal device for MTO system, including oxygen remover exhaust tank, two baffle are installed to oxygen remover exhaust tank inner wall, install the condensate tank between two baffle, a plurality of communication holes are seted up to condensate tank outer wall, a plurality of with corresponding plate type radiator of communication hole of condensate tank inner wall is installed, the heat removal hole that is seted up with communication hole is connected to the plate type radiator, and the baffle is installed to the both sides of plate type radiator, cooling gas is input to the cavity that oxygen remover exhaust tank, baffle and condensate tank constitute through air inlet, then through the communication hole of condensate tank outer wall and enter the heat removal hole inner chamber of plate type radiator, finally, from the exhaust hole, and the baffle of plate type radiator both sides is staggered distribution, and the contact area of steam and condensing element is increased greatly, makes steam fast cooling to be condensed water, avoids the problem of winter exhaust port icing caused by the direct discharge of uncondensed steam.

Description

Technical Field

[0001] This utility model relates to the field of deoxygenation device technology, specifically an integrated deoxygenation device for MTO systems. Background Technology

[0002] In methanol-to-olefins (MTO) production systems, the deoxygenation unit is a key component ensuring the safe and stable operation of downstream process equipment. Its core function is to remove oxygen and non-condensable gases from the steam, prevent oxygen corrosion of equipment, and ensure that the steam quality meets process requirements. Existing deoxygenation units often rely on natural heat dissipation or simple air-cooling structures for steam condensation, resulting in low condensation efficiency. This leads to some uncondensed steam being directly discharged from the exhaust port along with the non-condensable gases. Especially in low-temperature environments during winter (ambient temperature below 0°C), the discharged high-temperature steam rapidly exchanges heat with the cold air, easily forming an ice layer at the exhaust port and surrounding pipelines. This not only blocks the exhaust passage, causing the system back pressure to rise and affecting deoxygenation efficiency, but may also cause pipeline cracking and seal damage due to ice expansion, leading to steam leaks and other safety accidents, posing a serious threat to the continuous production of the MTO system. Therefore, this utility model provides an integrated deoxygenation device for MTO systems. Utility Model Content

[0003] This invention provides an integrated deoxygenation device for MTO systems to solve the above-mentioned problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an integrated deaerator for an MTO system, comprising a deaerator exhaust tank, wherein the outer wall of the deaerator exhaust tank is provided with symmetrical upper and lower air inlets and exhaust outlets, the inner wall of the deaerator exhaust tank is provided with two partitions, a condensate tank is provided between the two partitions, the outer wall of the condensate tank is provided with several connecting holes, the inner wall of the condensate tank is provided with several plate-type heat dissipation pipes corresponding to the connecting holes, the plate-type heat dissipation pipes are provided with heat exhaust holes communicating with the connecting holes, guide plates are provided on both sides of the plate-type heat dissipation pipes, a sealing ring is provided on the inner wall of the deaerator exhaust tank, the sealing ring and the outer wall of the deaerator exhaust tank are provided with communicating external drain holes and internal drain holes, and a push plate is slidably connected to the inner wall of the sealing ring.

[0005] Preferably, the deaerator exhaust tank is equipped with sealed boxes at both ends, and a connecting pipe is installed on the sealed boxes.

[0006] Preferably, the air inlet and the exhaust outlet are connected to the deaerator exhaust tank and the condensate tank by a certain distance, and the inner cavity of the heat exhaust hole is connected to the deaerator exhaust tank and the condensate tank by a certain distance.

[0007] Preferably, the inner cavity of the sealing box is connected to the inner cavity of the sealing ring, and the cavity between the plate heat dissipation pipes is connected to the inner cavity of the sealing ring.

[0008] Preferably, a rotating rod is rotatably mounted on the sealing box, and a connecting rod is mounted at one end of the rotating rod, the connecting rod being connected to the push plate.

[0009] Beneficial effects Compared with the prior art, the present invention has the following advantages: The cooling gas of this invention is introduced into the cavity consisting of the deaerator exhaust tank, baffle, and condensate tank through the air inlet. Then, it enters the heat dissipation hole of the plate heat exchanger through the connecting hole on the outer wall of the condensate tank, and is finally discharged from the exhaust hole. This continuously maintains the low temperature of the heat dissipation hole and the guide plate. At the same time, the guide plates on both sides of the plate heat exchanger are staggered, which greatly increases the contact area between the steam and the condenser, so that the steam is quickly cooled into condensate. This avoids the problem of ice formation at the exhaust port in winter caused by the direct discharge of uncondensed steam, and eliminates safety risks such as equipment freezing and cracking and exhaust blockage.

[0010] The push plate of this utility model slides along the inner wall of the sealing ring, which can not only seal the inner drain hole to prevent steam leakage in the early stage of condensate storage, but also push the residual condensate out from the inner drain hole and the outer drain hole after the water volume reaches the standard, so as to avoid the accumulation of condensate in the sealing ring and affect the steam transmission. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the deaerator exhaust tank in this utility model; Figure 3 This is a three-dimensional structural diagram of the condensate tank in this utility model; Figure 4 This is a three-dimensional structural diagram of the plate-type heat dissipation pipe in this utility model.

[0012] In the diagram: 1. Deaerator exhaust tank; 11. Air inlet; 12. Exhaust outlet; 13. Sealing box; 14. Connecting pipe; 2. Baffle plate; 21. Condensate tank; 22. Connecting hole; 23. Plate heat dissipation pipe; 24. Heat dissipation hole; 25. Guide plate; 3. Sealing ring; 31. External drain hole; 311. Internal drain hole; 32. Rotating rod; 33. Connecting rod; 34. Push plate. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 An integrated deaerator for an MTO system includes a deaerator exhaust tank 1. The outer wall of the deaerator exhaust tank 1 is equipped with symmetrical air inlets 11 and exhaust ports 12. The inner wall of the deaerator exhaust tank 1 is equipped with two baffles 2. A condensate tank 21 is installed between the two baffles 2. The outer wall of the condensate tank 21 is provided with several connecting holes 22.

[0015] The inner wall of the condensate tank 21 is equipped with several plate-type heat dissipation pipes 23 corresponding to the connecting holes 22. The plate-type heat dissipation pipes 23 are provided with heat exhaust holes 24 that are connected to the connecting holes 22. The plate-type heat dissipation pipes 23 are equipped with guide plates 25 on both sides.

[0016] It should be noted that the heat exhaust hole 24 described in this embodiment is through the top and bottom. The heat exhaust hole 24 is blocked from the inner cavity of the deaerator exhaust tank 1 by the plate heat dissipation pipe 23 body and the partition plate 2, so that the heat exhaust hole 24 is not connected to the deaerator exhaust tank 1.

[0017] A sealing ring 3 is installed on the inner wall of the deaerator exhaust tank 1. The sealing ring 3 and the outer wall of the deaerator exhaust tank 1 are connected to an external drain hole 31 and an internal drain hole 311. A push plate 34 is slidably connected to the inner wall of the sealing ring 3.

[0018] It should be noted that, in this embodiment, one end of the sealing ring 3 is connected to one side of the partition plate 2 and corresponds to the condensate tank 21, and both the external drain hole 31 and the internal drain hole 311 are located at the bottom of the device.

[0019] Specifically, during operation, the mixture of steam and non-condensable gas discharged from the deaerator enters the deaerator exhaust tank 1. At this time, a baffle 2 is installed on the inner wall of the deaerator exhaust tank 1, and the condensate tank 21 installed on the inner wall of the baffle 2 is located at the center of the deaerator exhaust tank 1. Several connecting holes 22 on the outer wall of the condensate tank 21 are blocked by equidistantly distributed plate-type heat dissipation pipes 23 installed on its inner wall, preventing the steam entering the equipment from entering the cavity formed by the deaerator exhaust tank 1, baffle 2, and condensate tank 21. The gas can then pass through the cavity between adjacent plate-type heat dissipation pipes 23, allowing steam to circulate within the deaerator exhaust tank 1. When the steam comes into contact with the heat dissipation hole 24, the steam has a higher temperature, thus... The air inlet 11 and exhaust 12 installed on the outside of the deaerator exhaust tank 1 can communicate with the cavity formed by the baffle 2, condensate tank 21, and deaerator exhaust tank 1, allowing the air inlet 11 and exhaust 12 to circulate and input cooling gas. After the cooling gas enters the cavity of the deaerator exhaust tank 1, baffle 2, and condensate tank 21, it can pass through the heat exhaust hole 24 opened on the outer wall of the condensate tank 21, thus allowing the air inlet 11 and exhaust 12 to input and discharge cooling gas, and maintaining the heat exhaust hole 24 at a low temperature. When steam is transported in the channel between the plate heat dissipation pipes 23, the guide plates 25 installed on both sides of the plate heat dissipation pipes 23 are poorly distributed. This design allows steam to come into contact with the cooling components, which consist of a larger area of ​​heat dissipation holes 24 and a guide plate 25, enabling the steam to be cooled and condensed. This facilitates the cooling of the steam before it is discharged, eliminating the safety hazard of ice formation at the exhaust port in winter. The cooling water is stored in the deaerator exhaust tank 1 and is supported by a sealing ring 3 on the inner wall of the deaerator exhaust tank 1, connecting it to the condensate tank 21. This prevents steam from entering the cavity between the condensate tank 21 and the deaerator exhaust tank 1. Simultaneously, the inner drain hole 311 on the bottom outer wall of the sealing ring 3 allows the condensate to drain downwards to the outer drain hole 31. The condensate is contained within the cavity formed by the deaerator exhaust tank 1, the baffle plate 2, and the sealing ring 3, preventing it from affecting the cooling steam. Interference occurs in the airflow space, ensuring that the cooling gas continuously reduces the temperature of the heat dissipation hole 24 and the guide plate 25, thereby condensing the steam. The external drain hole 31 on the bottom outer wall of the deaerator exhaust tank 1 can discharge condensate. When the condensate in the sealing ring 3 is initially discharged, the external drain hole 31 is closed to prevent steam leakage. After a certain amount of water is filled in the cavity composed of the deaerator exhaust tank 1, the partition plate 2 and the sealing ring 3, the push plate 34 slides on the inner wall of the sealing ring 3, so that the push plate 34 can close the inner drain hole 311. At the same time, the water remaining on the inner wall of the sealing ring 3 is pushed to the inner drain hole 311 for discharge, so that the condensate can avoid affecting the steam transmission and can be safely discharged.

[0020] In one embodiment of this utility model, such as Figures 1-4 As shown, sealing boxes 13 are installed at both ends of the deaerator exhaust tank 1, and connecting pipes 14 are installed on the sealing boxes 13.

[0021] It should be noted that the sealing box 13 described in this embodiment is sealed to one end of the deaerator exhaust tank 1 and the sealing ring 3, and the connecting pipe 14 is used for the input and output of steam.

[0022] Specifically, the connecting pipe 14 is installed through the sealing box 13, so that the steam generated can be discharged into the deaerator exhaust tank 1 through the connecting pipe 14 on one end of the sealing box 13, and after condensate treatment, it can be discharged through the connecting pipe 14 installed on the other end of the sealing box 13.

[0023] In one embodiment of this utility model, such as Figures 1-4 As shown, the air inlet 11 and the exhaust 12 are connected to the deaerator exhaust tank 1 and the condensate tank 21 by a certain distance, and the inner cavity of the heat exhaust hole 24 is connected to the deaerator exhaust tank 1 and the condensate tank 21 by a certain distance.

[0024] It should be noted that the air inlet 11 and the exhaust outlet 12 described in this embodiment are located between two partitions 2.

[0025] Specifically, after entering the cavity between the deaerator exhaust tank 1, the partition plate 2, and the condensate tank 21 through the cooling gas inlet 11, the gas can pass through the connecting hole 22 on the outer wall of the condensate tank 21 and enter the heat exhaust hole 24, and then be discharged through the exhaust hole 12. This allows the cooling gas to circulate in the heat exhaust hole 24, preventing the plate heat exchanger tube 23 and the guide plate 25 from heating up due to continuous heat exchange of steam, which would affect their condensation effect on the steam.

[0026] In one embodiment of this utility model, such as Figures 1-4 As shown, the inner cavity of the sealing box 13 is connected to the inner cavity of the sealing ring 3, and the cavity between the plate heat dissipation pipes 23 is connected to the inner cavity of the sealing ring 3.

[0027] It should be noted that the sealing box 13 described in this embodiment is sealed at one end of the sealing ring 3 and the deaerator exhaust tank 1.

[0028] Specifically, the sealing box 13 is connected to the sealing ring 3, so that the connecting pipe 14 on the sealing box 13 can input and discharge steam. The cavity between the plate heat dissipation pipes 23 is used to transmit steam, so that steam can enter from one end of the deaerator exhaust tank 1 through the cavity between the plate heat dissipation pipes 23 and be discharged through the other end.

[0029] In one embodiment of this utility model, such as Figures 1-4As shown, a rotating rod 32 is rotatably mounted on the sealed box 13, and a connecting rod 33 is mounted on one end of the rotating rod 32. The connecting rod 33 is connected to the push plate 34.

[0030] It should be noted that, in this embodiment, the rotating rod 32 is located at the center of the sealing ring 3, and the outer end of the push plate 34 is in contact with the inner wall of the sealing ring 3.

[0031] Specifically, the outer end of the rotating rod 32 is connected to the motor, so that the rotating rod 32 can be driven to rotate. The rotating rod 32 and the connecting rod 33 can rotate synchronously, so that the connecting rod 33 can rotate synchronously with the push plate 34, so that the outer end of the push plate 34 can slide against the inner wall of the sealing ring 3. This allows the push plate 34 to close the opening position of the inner drain hole 311 while pushing the water to the opening position of the inner drain hole 311 for discharge.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] Working principle: Steam enters the deaerator exhaust tank 1 through one end connecting pipe 14 and is transported along the cavity between the plate heat dissipation pipes 23. Simultaneously, the cooling gas supply system is activated, allowing cooling gas to enter the relevant cavity through the air inlet 11 and exit through the connecting hole 22 and the heat dissipation hole 24, and then exit through the exhaust hole 12. The steam condenses into water upon contact with the low-temperature heat dissipation hole 24 and the guide plate 25, falling into the corresponding cavity of the sealing ring 3. Non-condensable gas is discharged from the other end connecting pipe 14. Subsequently, the condensate drainage control stage begins. When condensate accumulates in the storage cavity, the push plate 34 closes the inner drain hole 311. After the liquid level reaches the target, the rotating rod 32 drives the connecting rod 33 to slide the push plate 34 to open the inner drain hole 311 and push the condensate out. After drainage, the push plate 34 is pushed out. Plate 34 resets and seals the inner drain hole 311. Daily monitoring of cooling gas circulation and drainage sealing is required via sensors. When the condensate level in the cavity reaches a set threshold, the drive motor starts, causing the rotating rod 32 to rotate. The rotating rod 32, through the connecting rod 33, pushes the push plate 34 to slide along the inner wall of the sealing ring 3. The push plate 34 first opens the inner drain hole 311, then pushes the residual condensate towards the inner drain hole 311. The condensate enters the inner cavity of the sealing ring 3 through the inner drain hole 311, and finally exits and is collected from the outer drain hole 31 on the outer wall of the deaerator exhaust tank 1. After drainage is completed, the rotating rod 32 rotates in the opposite direction, causing the push plate 34 to return to its initial position, resealing the inner drain hole 311, and entering the next condensate storage cycle.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated deaerator for an MTO system, comprising a deaerator exhaust tank (1), characterized in that, The outer wall of the deaerator exhaust tank (1) is equipped with symmetrical air inlet holes (11) and exhaust holes (12). The inner wall of the deaerator exhaust tank (1) is equipped with two partitions (2). A condensate tank (21) is installed between the two partitions (2). The outer wall of the condensate tank (21) is provided with several connecting holes (22). The inner wall of the condensate tank (21) is equipped with a number of plate heat dissipation pipes (23) corresponding to the connecting hole (22). The plate heat dissipation pipes (23) are provided with heat exhaust holes (24) that are connected to the connecting hole (22). The plate heat dissipation pipes (23) are equipped with guide plates (25) on both sides. The inner wall of the deaerator exhaust tank (1) is equipped with a sealing ring (3). The sealing ring (3) and the outer wall of the deaerator exhaust tank (1) are provided with an external drain hole (31) and an internal drain hole (311) that are connected to each other. The inner wall of the sealing ring (3) is slidably connected with a push plate (34).

2. An integrated deaerator for an MTO system according to claim 1, characterized in that, The deaerator exhaust tank (1) is equipped with sealing boxes (13) at both ends, and a connecting pipe (14) is installed on the sealing box (13).

3. An integrated deaerator for an MTO system according to claim 2, characterized in that, The air inlet (11) and the exhaust outlet (12) are connected to the deaerator exhaust tank (1) and the condensate tank (21) by a certain distance, and the inner cavity of the heat exhaust hole (24) is connected to the deaerator exhaust tank (1) and the condensate tank (21) by a certain distance.

4. An integrated deaerator for an MTO system according to claim 2, characterized in that, The inner cavity of the sealing box (13) is connected to the inner cavity of the sealing ring (3), and the cavity between the plate heat dissipation pipes (23) is connected to the inner cavity of the sealing ring (3).

5. An integrated deaerator for an MTO system according to claim 2, characterized in that, A rotating rod (32) is rotatably mounted on the sealing box (13), and a connecting rod (33) is mounted on one end of the rotating rod (32). The connecting rod (33) is connected to the push plate (34).

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