Non-condensable gas separation device
By designing a non-condensing gas separation device, instantaneous flashing of the condensing liquid is used to use a porous flash plate to solve the problem of the non-condensing gas redissolving into the liquid during the separation process, and the separation effect is significantly improved.
Patent Information
- Application Number
- CN202421206546.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In the prior art, non-condensing gas is prone to redissolve into the liquid during the separation process, resulting in poor separation effect.
A non-condensation gas separation device is designed, including a housing, a heat exchanger, a liquid discharge tube, a porous flash plate and a liquid storage tank. The condensate is flashed instantly through a porous flash plate to separate the non-condensed gas from the condensate and discharge it through the exhaust hole to the non-condensed gas discharge chamber.
It effectively prevents the non-condensation gas from redissolving into the condensate, significantly improving the separation effect of the non-condensation gas.
Smart Images
Figure CN222788838U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of gas-liquid separation, and in particular to a non-condensable gas separation device. Background Art
[0002] The main component of non-condensable gas is the part of gas that does not form liquid below the condensation temperature during the steam heat transfer process. It mainly includes the residual air in the equipment and the impurity gas generated by the evaporation heat transfer of the system fluid. Non-condensable gas affects the system heat transfer and the quality of water and gas produced by the system. Taking steam as an example, when steam is sterilized, non-condensable gas is an important indicator of steam detection, and its content affects the sterilization effect of steam.
[0003] However, in the related art, when the non-condensable gas is separated, the separated non-condensable gas is easily dissolved into the liquid again, resulting in a poor separation effect. Summary of the invention
[0004] Based on this, the present application provides a non-condensable gas separation device to solve the problem of how to improve the non-condensable gas separation effect.
[0005] The specific technical solutions are as follows:
[0006] A non-condensable gas separation device, comprising:
[0007] A housing, wherein a fixing member is disposed in the housing, wherein the housing encloses a heat exchange cavity above the fixing member and encloses a non-condensable gas discharge cavity below the fixing member, wherein the heat exchange cavity has a heat medium inlet;
[0008] A heat exchanger, the heat exchanger is arranged in the heat exchange cavity, and the heat exchanger is used to cool and condense the heat medium fluid entering the heat exchange cavity from the heat medium inlet to form a condensate;
[0009] A liquid storage tank, the liquid storage tank being located below the non-condensable gas discharge chamber;
[0010] A drain pipe, the drain pipe is fixed in the shell through the fixing member, one end of the drain pipe is connected to the heat exchange chamber, and the other end extends into the liquid storage tank, and a vent hole is opened on the wall of the drain pipe, and the vent hole is connected to the non-condensable gas discharge chamber;
[0011] A porous flash plate is arranged in the drain pipe. When the heat exchange chamber discharges condensate to the liquid storage tank through the drain pipe, the porous flash plate flashes the condensate instantaneously, so that the non-condensable gas is separated from the condensate and discharged to the non-condensable gas discharge chamber through the exhaust hole.
[0012] In one embodiment, the porous flash plate is located above the exhaust hole.
[0013] In one embodiment, the fixing member is provided with a drainage port running through the thickness direction thereof, and the drainage pipe comprises a connected pipe joint and a pipe body, wherein the pipe joint is inserted into the drainage port to communicate with the heat exchange chamber, and the pipe body is connected to the bottom of the pipe joint.
[0014] In one embodiment, the porous flash plate is connected between the pipe joint and the pipe body, and the diameter of the pipe body is larger than the diameter of the pipe joint.
[0015] In one embodiment, the number of the shells is two, one of the shells encloses the heat exchange chamber, and the other shell encloses the non-condensable gas discharge chamber, and the two shells can be connected to the fixing member by snapping or welding.
[0016] In one embodiment, the housing and the fixing member are integrally formed.
[0017] In one embodiment, the non-condensable gas separation device also includes a partition plate, which is arranged in the non-condensable gas discharge chamber and divides the non-condensable gas discharge chamber into a first chamber and a second chamber. The edge of the partition plate has an air guide port, which connects the first chamber and the second chamber. The exhaust hole is located between the partition plate and the fixing member.
[0018] In one of the embodiments, the partition plate is provided with a perforation, and the drainage pipe is provided through the perforation and is sealedly connected to the side wall of the perforation.
[0019] In one of the embodiments, the partition plate is horizontally disposed in the non-condensable gas discharge chamber, and the drain pipe extends along the axial direction of the non-condensable gas discharge chamber.
[0020] In one embodiment, an exhaust port is provided on the top of the liquid storage tank, and the liquid storage tank is connected with the non-condensable gas discharge chamber through the exhaust port. A condensate discharge port is provided on the outer wall of the non-condensable gas discharge chamber. A guide pipe is provided in the liquid storage tank, and one end of the guide pipe is connected with the bottom of the liquid storage tank, and the other end is connected with the condensate discharge port. The above-mentioned non-condensable gas separation device has an outer shell that encloses a heat exchange chamber located above the fixing member and a non-condensable gas discharge chamber located below the fixing member. The drain pipe is fixed in the outer shell by the fixing member, and one end of the drain pipe is connected with the heat exchange chamber, and the other end extends into the liquid storage tank, so that the condensate can pass through the drain pipe from the heat exchange chamber into the liquid storage tank below. Since a porous flash plate is provided in the drain pipe, the non-condensable gas can be instantly flash evaporated and separated when the condensate passes through the drain pipe. Since an exhaust hole is provided in the wall of the drain pipe, the exhaust hole is connected with the non-condensable gas discharge chamber, so that the non-condensable gas separated from the condensate can be discharged to the non-condensable gas discharge chamber through the exhaust hole in time to avoid the non-condensable gas from re-dissolving into the condensate, thereby improving the non-condensable gas separation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying any creative work.
[0022] Figure 1 It is a schematic cross-sectional structure diagram of a non-condensable gas separation device according to one embodiment.
[0023] Figure 2 for Figure 1 An enlarged schematic diagram of the local structure at A of the non-condensable gas separation device.
[0024] Figure 3 The present invention is a schematic structural diagram of a partition plate of a non-condensable gas separation device according to one embodiment.
[0025] Figure 4 It is a schematic cross-sectional structure diagram of a non-condensable gas separation device according to another embodiment.
[0026] Figure 5 for Figure 4 An enlarged schematic diagram of the local structure at B of the non-condensable gas separation device.
[0027] Figure 6 The non-condensable gas separation device is Figure 4 Schematic diagram of the cross-sectional structure of line II in FIG.
[0028] Figure 7 for Figure 6 An enlarged schematic diagram of the local structure at C of the non-condensable gas separation device.
[0029] Figure 8 for Figure 6 An enlarged schematic diagram of the local structure at D of the non-condensable gas separation device.
[0030] Description of reference numerals:
[0031] 1. Shell; 11. Fixing part; 111. Drain port; 12. Heat exchange chamber; 121. Heat medium inlet; 13. Non-condensable gas discharge chamber; 131. First chamber; 132. Second chamber; 15. Condensate discharge port; 2. Heat exchanger; 21. Spiral tube heat exchanger; 3. Drain pipe; 31. Pipe joint; 32. Pipe body; 33. Exhaust hole; 4. Multi-porous flash plate; 41. Guide hole; 5. Liquid storage tank; 51. Exhaust port; 6. Sampling and detection tube cavity; 61. Drain port; 7. Partition plate; 71. Air guide port; 72. Perforation; 8. Guide pipe; 9. Sampling valve; 91. Water outlet; 92. Drain trough. DETAILED DESCRIPTION
[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.
[0034] The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for illustrative purposes only and do not represent the only implementations.
[0035] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0036] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0037] See also Figure 1 and Figure 2 A non-condensable gas separation device provided in one embodiment of the present application can be used to separate non-condensable gases from heat medium fluids such as steam sampling and high-temperature distilled water.
[0038] The non-condensable gas separation device includes a shell 1, a heat exchanger 2, a liquid discharge pipe 3, a porous flash plate 4 and a liquid storage tank 5. A fixing part 11 is provided in the shell 1, and the shell 1 encloses a heat exchange chamber 12 above the fixing part 11, and encloses a non-condensable gas discharge chamber 13 below the fixing part 11. The heat exchange chamber 12 has a heat medium inlet 121, and the heat exchanger 2 is arranged in the heat exchange chamber 12. After the heat medium fluid enters the heat exchange chamber 12 from the heat medium inlet 121, based on the heat exchange effect of the heat exchanger 2 in the heat exchange chamber 12, the heat medium fluid can be cooled and condensed to form a condensate.
[0039] Heat exchanger 2 can be Figure 1 The spiral tube heat exchanger 21 is shown. In some embodiments, the heat exchanger 2 may also be a double tube sheet heat exchanger or a shell and tube heat exchanger or other types of heat exchangers that can condense the heat medium fluid entering the heat exchange chamber 12 through heat exchange. The type of the heat exchanger 2 is not limited here.
[0040] The drain pipe 3 is fixed in the housing 1 by a fixing member 11 , one end of the drain pipe 3 is connected to the heat exchange chamber 12 , and the other end extends into the liquid storage tank 5 , so that the condensate in the heat exchange chamber 12 can be discharged into the liquid storage tank 5 through the drain pipe 3 .
[0041] The porous flash plate 4 is arranged in the drain pipe 3, so that after the condensate mixed with non-condensable gas formed in the heat exchange chamber 12 enters the drain pipe 3, the porous flash plate 4 is used to flash the condensate instantaneously to separate the non-condensable gas from the condensate, thereby realizing the separation of the non-condensable gas. The tube wall of the drain pipe 3 is provided with an exhaust hole 33, and the exhaust hole 33 is connected to the non-condensable gas discharge chamber 13. In this way, when the heat exchange chamber 12 discharges the condensate to the liquid storage tank 5 through the drain pipe 3, the porous flash plate 4 flashes the condensate instantaneously, so that the non-condensable gas is separated from the condensate and discharged to the non-condensable gas discharge chamber 13 through the exhaust hole 33, so as to avoid the non-condensable gas from re-dissolving into the condensate, thereby improving the non-condensable gas separation effect.
[0042] The fixing member 11 may be formed integrally with the housing 1 , thereby eliminating the need for other assembly structures.
[0043] In some embodiments, the housing 1 may be composed of multiple parts, specifically, different housings 1 constitute different cavities and are connected together by a fixing member 11. For example, the fixing member 11 is connected to two housings 1, one housing 1 encloses a heat exchange cavity 12, and the other housing 1 encloses a non-condensable gas discharge cavity 13, and the two housings 1 may be connected to the fixing member 11 by means of clamping or welding.
[0044] In some embodiments, the housing 1 and the heat medium inlet 121 , the housing 1 and the liquid storage tank 5 , and the drain pipe 3 and the porous flash plate 4 can be connected to each other using a quick-release chuck interface to facilitate installation and maintenance.
[0045] It should be noted that a guide hole 41 is provided in the middle of the porous flash plate 4. The condensate in the heat exchange chamber 12 will flow through the guide hole 41 through the porous flash plate 4. The guide hole 41 thereon is used to adjust the flow rate of the condensate entering the drain pipe 3, so as to improve the stability of the flash separation of the non-condensable gas in the condensate.
[0046] The porous flash plate 4 is located above the exhaust hole 33, in other words, the exhaust hole 33 is located below the porous flash plate 4. With this structural setting, the porous flash plate 4 produces a throttling effect on the condensate located above it, preventing the condensate from being discharged from the exhaust hole 33. Accordingly, when the condensate passes through the porous flash plate 4, the porous flash plate 4 separates the non-condensable gas by flashing the condensate, and the separated non-condensable gas enters the non-condensable gas discharge chamber 13 from the exhaust hole 33.
[0047] Continue reading Figure 1 and Figure 2 , the fixing part 11 is provided with a drain port 111 which runs through the thickness direction thereof. The drain pipe 3 includes a pipe joint 31 and a tube body 32 which are connected. Among them, the pipe joint 31 is inserted into the drain port 111, so that the pipe joint 31 is connected with the heat exchange chamber 12. The tube body 32 is connected to the bottom of the pipe joint 31, so that the condensate formed in the heat exchange chamber 12 will flow into the tube body 32 through the pipe joint 31. In this embodiment, the pipe joint 31 can serve as the condensate outlet of the heat exchange chamber 12 for the heat exchange chamber 12, and the pipe joint 31 can serve as the condensate inlet of the drain pipe 3 for the drain pipe 3. The pipe joint 31 and the tube body 32 can be integrally formed or plug-in fit. The connection method between the pipe joint 31 and the tube body 32 is not limited here.
[0048] Furthermore, the porous flash plate 4 is connected between the pipe joint 31 and the pipe body 32. In other words, the pipe joint 31 is connected to the top of the porous flash plate 4, and the pipe body 32 is connected to the bottom of the porous flash plate 4. The pipe diameter of the pipe body 32 of the drain pipe 3 is larger than the pipe diameter of the pipe joint 31. In this way, the condensate will pass through the porous flash plate 4 from the pipe joint 31 with a small pipe diameter and enter the pipe body 32 with a large pipe diameter, so as to improve the flash evaporation effect of the condensate and improve the separation efficiency of the non-condensable gas.
[0049] Combination Figure 2 and Figure 3 In some embodiments, the non-condensable gas separation device includes a partition plate 7, which is arranged in the non-condensable gas discharge chamber 13, and the partition plate 7 divides the non-condensable gas discharge chamber 13 into a first volume 131 and a second volume 132. In this embodiment, the edge of the partition plate 7 has an air guide port 71, and the air guide port 71 connects the first volume 131 and the second volume 132. Thereby, the non-condensable gas is separated and discharged from the condensate in time. The partition plate 7 is provided with a perforation 72, and the drain pipe 3 is penetrated through the perforation 72 and is sealed and connected to the side wall of the perforation 72. The sealing connection method includes but is not limited to welding or sandwiching a sealing ring between the perforation 72 and the drain pipe 3. The shape of the air guide port 71 formed by the edge of the partition plate 7 includes but is not limited to a crescent shape, a rectangle or a triangle.
[0050] The drain pipe 3 is vertically penetrated through the partition plate 7. The partition plate 7 is horizontally arranged in the non-condensable gas discharge chamber 13, and the drain pipe 3 extends along the axial direction of the non-condensable gas discharge chamber 13 to vertically penetrate through the partition plate 7, so that the condensate can flow from the condensation chamber 12 into the liquid storage chamber 5 along the drain pipe 3 better under its own gravity.
[0051] like Figure 2 and Figure 7 As shown, the exhaust hole 33 is located between the partition plate 7 and the fixing member 11, so that the exhaust hole 33 is connected to the first volume chamber 131. Since the first volume chamber 131 is connected to the second volume chamber 132 through the air guide port 71, the non-condensable gas separated by flash evaporation is discharged from the exhaust hole 33 and then passes through the first volume chamber 131 and the air guide port 71 in sequence into the second volume chamber 132.
[0052] In some embodiments, one end of the drain pipe 3 away from the fixing member 11 extends below the liquid surface of the liquid storage tank 5. In this way, the condensate in the liquid storage tank 5 will generate back pressure on the drain pipe 3, so that the non-condensable gas in the condensate after flash evaporation in the drain pipe 3 is more easily separated under the action of the back pressure and discharged from the exhaust hole 33 to the non-condensable gas discharge chamber 13 in time.
[0053] Combination Figure 4As shown, a sampling detection lumen 6 is provided in the liquid storage tank 5, and one end of the drain pipe 3 extending into the liquid surface of the liquid storage tank 5 extends into the sampling detection lumen 6. A detection element can be provided in the sampling detection lumen 6, so as to use the detection element to perform real-time monitoring of the condensate flowing out of the drain pipe 3. Since the non-condensable gas is discharged from the exhaust hole 33 of the drain pipe 3 into the non-condensable gas discharge chamber 13, the detection result of the condensate flowing out of the drain pipe 3 is stable.
[0054] Combination Figure 4 and Figure 5 A drain port 61 is provided at the bottom of the sampling and testing lumen 6, and the drain port 61 is connected to the liquid storage tank 5. The condensate in the sampling and testing lumen 6 can be discharged from the drain port 61 to the liquid storage tank 5, thereby realizing the drain function.
[0055] Combine again Figure 1 and Figure 2 , an exhaust port 51 is provided at the top of the liquid storage tank 5, and the liquid storage tank 5 is connected to the non-condensable gas discharge chamber 13 through the exhaust port 51. In this way, as the condensate enters the liquid storage tank 5 from the drain pipe 3, the liquid level of the condensate in the liquid storage tank 5 will rise, so that the air above the liquid level will be discharged to the non-condensable gas discharge chamber 13 through the exhaust port 51. Therefore, under this structural setting, it is helpful to reduce the blocking effect of the air in the liquid storage tank 5 on the outflow of the condensate in the drain pipe 3 through the condensate, so that the condensate in the drain pipe 3 can flow into the liquid storage tank 5 under its own gravity.
[0056] Combination Figure 4 and Figure 6 A condensate discharge port 15 is provided on the outer wall of the non-condensable gas discharge chamber 13 , and a guide pipe 8 is provided in the liquid storage tank 5 , one end of the guide pipe 8 is connected to the bottom of the liquid storage tank 5 , and the other end is connected to the condensate discharge port 15 .
[0057] Combination Figure 8 A sampling valve 9 is provided below the liquid storage tank 5, and the sampling valve 9 includes but is not limited to a sterile diaphragm valve. A water outlet 91 is provided at the bottom of the sampling valve 9. When the sampling valve 9 is opened, the condensate in the liquid storage tank 5 is discharged through the water outlet 91 of the sampling valve 9. In this way, the self-draining function of the non-condensable gas separation device when it is shut down can be realized.
[0058] Combination Figure 6 and Figure 8 In the embodiment where the sampling valve 9 is disposed below the liquid storage tank 5, a drain groove 92 communicating with the liquid storage tank 5 is disposed on the side of the valve seat of the sampling valve 9 facing the liquid storage tank 5, and one end of the flow guide pipe 8 is inserted into the drain groove 92 and communicated with the liquid storage tank 5 through the drain groove 92. In this embodiment, the other end of the flow guide pipe 8 may be inserted through the top of the liquid storage tank 5 and communicated with the condensate discharge port 15 through a pipeline.
[0059] In some embodiments, the liquid storage tank 5 is connected to the housing 1 forming the heat exchange chamber 12 and the non-condensable gas discharge chamber 13 by welding or bolting. In order to ensure the sealing of the connection between the cavities, welding or clamping of sealing rings can be adopted at the connection position to achieve sealing between each other.
[0060] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0061] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.
Claims
1. A non-condensable gas separation device, characterized in that: include: A housing, wherein a fixing member is disposed in the housing, wherein the housing encloses a heat exchange cavity above the fixing member and encloses a non-condensable gas discharge cavity below the fixing member, wherein the heat exchange cavity has a heat medium inlet; A heat exchanger, the heat exchanger is arranged in the heat exchange cavity, and the heat exchanger is used to cool and condense the heat medium fluid entering the heat exchange cavity from the heat medium inlet to form a condensate; A liquid storage tank, the liquid storage tank being located below the non-condensable gas discharge chamber; A drain pipe, the drain pipe is fixed in the shell through the fixing member, one end of the drain pipe is connected to the heat exchange chamber, and the other end extends into the liquid storage tank, and a vent hole is opened on the wall of the drain pipe, and the vent hole is connected to the non-condensable gas discharge chamber; A porous flash plate is arranged in the drain pipe. When the heat exchange chamber discharges condensate to the liquid storage tank through the drain pipe, the porous flash plate flashes the condensate instantaneously, so that the non-condensable gas is separated from the condensate and discharged to the non-condensable gas discharge chamber through the exhaust hole.
2. The non-condensable gas separation device according to claim 1, characterized in that: The porous flash plate is located above the exhaust hole.
3. The non-condensable gas separation device according to claim 1 or 2, characterized in that: The fixing member is provided with a drainage port running through the thickness direction thereof, and the drainage pipe comprises a connected pipe joint and a pipe body, wherein the pipe joint is inserted into the drainage port to communicate with the heat exchange cavity, and the pipe body is connected below the pipe joint.
4. The non-condensable gas separation device according to claim 3, characterized in that: The porous flash plate is connected between the pipe joint and the pipe body, and the pipe diameter of the pipe body is larger than the pipe diameter of the pipe joint.
5. The non-condensable gas separation device according to claim 1, characterized in that: There are two shells, one of which encloses the heat exchange chamber, and the other of which encloses the non-condensable gas discharge chamber. The two shells can be connected to the fixing member by snapping or welding.
6. The non-condensable gas separation device according to claim 3, characterized in that: The housing and the fixing member are integrally formed.
7. The non-condensable gas separation device according to claim 1, characterized in that: The non-condensable gas separation device also includes a partition plate, which is arranged in the non-condensable gas discharge chamber and divides the non-condensable gas discharge chamber into a first chamber and a second chamber. The edge of the partition plate has an air guide port, which connects the first chamber and the second chamber. The exhaust hole is located between the partition plate and the fixing member.
8. The non-condensable gas separation device according to claim 7, characterized in that: The partition plate is provided with a perforation, and the drain pipe is passed through the perforation and is sealed and connected to the side wall of the perforation.
9. The non-condensable gas separation device according to claim 8, characterized in that: The partition plate is horizontally arranged in the non-condensable gas discharge chamber, and the liquid discharge pipe extends along the axial direction of the non-condensable gas discharge chamber.
10. The non-condensable gas separation device according to claim 1, characterized in that: An exhaust port is provided on the top of the liquid storage tank, and the liquid storage tank is connected with the non-condensable gas discharge chamber through the exhaust port. A condensate discharge port is provided on the outer wall of the non-condensable gas discharge chamber. A guide pipe is provided in the liquid storage tank, and one end of the guide pipe is connected with the bottom of the liquid storage tank, and the other end is connected with the condensate discharge port.