Automatic drain valve

Abstract

The application provides an automatic drain valve applied to a steam pipeline, comprising a valve body arranged at the lower side of the steam pipeline, wherein the valve body comprises a shell main body, a bottom plate fixedly connected with the shell main body, and the shell main body and the bottom plate define a condensate cavity in communication with the steam pipeline, the bottom plate is provided with a drain hole, the condensate cavity is in communication with the outside through the drain hole, a drain assembly is arranged at the drain hole, the drain assembly is configured to control the conduction state of the drain hole according to the water level in the condensate cavity, and a heating assembly is arranged at the condensate cavity and configured to heat the liquid in the condensate cavity. The automatic drain valve of the application can heat the liquid in the condensate cavity through the heating assembly, avoid the water in the valve body from condensing and icing in a low-temperature environment, facilitate the smooth discharge of the condensed water in the drain valve, and prolong the service life of the automatic drain valve.

Description

Technical Field

[0001] This application relates to the field of steam pipeline system technology, and in particular to an automatic steam trap. Background Technology

[0002] In modern industrial and heating systems, long-distance steam pipelines are an important component for transporting steam to various steam-consuming points. Steam traps, as an indispensable component of steam pipeline systems, primarily function to remove condensate from the system while preventing steam leakage, ensuring the efficient and safe operation of the system.

[0003] Existing steam traps for long-distance steam pipelines mostly adopt traditional gate valve designs. Due to the long-distance transport of steam, the steam continuously releases heat during transmission, causing condensation to form on the inner wall of the pipeline and in front of the valve. In low-temperature environments, this condensate easily accumulates and freezes in front of the steam trap. Icing not only blocks the normal operating passage of the steam trap but also causes physical stress on the valve body structure, leading to a decrease in the mechanical performance of the steam trap and even valve body rupture. Utility Model Content

[0004] This application provides an automatic steam trap that heats the liquid in the condensate chamber using a heating component, preventing the water in the valve body from condensing and freezing in a low-temperature environment. This facilitates the smooth discharge of condensate from the steam trap, thereby extending the service life of the automatic steam trap.

[0005] This application provides an automatic steam trap for use in steam pipelines, the automatic steam trap comprising:

[0006] A valve body, disposed on the lower side of the steam pipe, the valve body comprising:

[0007] Shell body;

[0008] The bottom plate is fixedly connected to the shell body, and the shell body and the bottom plate define a condensate chamber that communicates with the steam pipe. The bottom plate is provided with a drain hole, and the condensate chamber communicates with the outside through the drain hole.

[0009] A drainage component is provided at the drainage hole, and the drainage component is configured to control the conduction state of the drainage hole according to the water level in the condensate chamber;

[0010] A heating assembly is disposed in the condensate chamber, and the heating assembly is configured to heat the liquid in the condensate chamber.

[0011] This invention relates to an automatic steam trap. By incorporating a heating element, the liquid within the condensate chamber is heated, effectively preventing freezing and ensuring the normal operation of the drainage assembly. The drainage assembly automatically controls the flow of the drain hole based on the water level in the condensate chamber, requiring no manual intervention and achieving continuous and stable drainage. Automatic control of drainage and heating reduces internal corrosion and wear, thereby extending the service life of the automatic steam trap.

[0012] In some embodiments, the heating assembly includes a heat-conducting pipe, which includes an inlet end, an outlet end, and a heat exchange section located in the steam pipe and in the condensate chamber. The inlet end and the outlet end are connected by the heat exchange section, which is adapted to exchange heat with the liquid in the condensate chamber.

[0013] According to some embodiments of the present invention, the air inlet end has an air inlet section extending radially along the steam pipe, and the length of the portion of the air inlet section located inside the steam pipe is 1 / 6 of the diameter of the steam pipe.

[0014] According to some embodiments of the present invention, the heat exchange section is provided with heat dissipation fins.

[0015] According to some embodiments of the present invention, the heat dissipation fins are divided into multiple groups, and the multiple groups of heat dissipation fins are arranged at intervals along the peripheral wall of the heat exchange part, and adjacent two heat dissipation fins are spaced apart along the axial direction of the heat exchange part.

[0016] According to some embodiments of the present invention, a support member is provided in the valve body, and the heat-conducting pipe is fixedly installed in the valve body through the support member.

[0017] In some embodiments, the drainage assembly includes a plugging member and an elastic member. The plugging member includes a plugging post adapted to plug the drainage hole. A portion of the outer wall of the plugging post protrudes circumferentially to form a mounting seat. The mounting seat has a mounting surface opposite to the side of the base plate facing away from the condensate cavity. The elastic member is disposed on the mounting surface, and the mounting seat is elastically connected to the base plate through the elastic member.

[0018] According to some embodiments of this utility model, a spring sleeve is fixedly connected to the mounting surface, the axis of the spring sleeve is parallel to the axis of the sealing column, and the elastic element is disposed inside the spring sleeve.

[0019] According to some embodiments of this utility model, when the sealing column blocks the drainage hole, the end of the spring sleeve away from the mounting surface abuts against the side of the base plate away from the condensate cavity. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0021] Figure 1 This is a schematic diagram of the structure of the automatic steam trap according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of an automatic steam trap installed in a steam pipeline according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Automatic steam trap;

[0025] 110. Valve body; 111. Shell body; 112. Base plate; 113. Condensate chamber;

[0026] 120. Drainage assembly; 121. Sealing element; 121a. Sealing post; 121b. Mounting base; 122. Elastic element; 123. Spring sleeve;

[0027] 130. Heating component; 131. Heat pipe; 131a. Air inlet; 131b. Air outlet; 131c. Heat exchange section; 131d. Air inlet section; 132. Heat dissipation fins;

[0028] 200. Steam pipes.

[0029] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0030] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0031] Existing steam traps for long-distance steam pipelines mostly adopt traditional gate valve designs. Due to the long-distance transport of steam, the steam continuously releases heat during transmission, causing condensation to form on the inner wall of the pipeline and in front of the valve. In low-temperature environments, this condensate easily accumulates and freezes in front of the steam trap. Icing not only blocks the normal operating passage of the steam trap but also causes physical stress on the valve body structure, leading to a decrease in the mechanical performance of the steam trap and even valve body rupture.

[0032] This application provides an automatic steam trap that heats the liquid in the condensate chamber using a heating component, preventing the water in the valve body from condensing and freezing in a low-temperature environment. This facilitates the smooth discharge of condensate from the steam trap, thereby extending the service life of the automatic steam trap.

[0033] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0034] refer to Figures 1 to 2 This application provides an automatic steam trap 100, which is applied to a steam pipe 200. The automatic steam trap 100 may include a valve body 110, a drainage assembly 120, and a heating assembly 130.

[0035] The valve body 110 is located on the lower side of the steam pipe 200. The valve body 110 may include a housing body 111 and a base plate 112. An installation port may be provided on the lower side of the steam pipe 200. The housing body 111 and the peripheral wall of the installation port can be fixedly connected by a flange, or the housing body 111 may be directly welded to the installation port. A portion of the housing body 111 may protrude from the lower side of the steam pipe 200. When the steam in the steam pipe 200 condenses into liquid, the liquid flows into the valve body 110 under gravity and is discharged through the valve body 110.

[0036] The base plate 112 is fixedly connected to the shell body 111, and the shell body 111 and the base plate 112 define a condensate chamber 113 that communicates with the steam pipe 200. The base plate 112 is provided with a drain hole, and the condensate chamber 113 communicates with the outside through the drain hole.

[0037] A drainage component 120 is disposed at the drain hole. The drainage component 120 is configured to control the opening and closing state of the drain hole according to the water level in the condensate chamber 113. For example, the drainage component 120 can be a float-type drainage structure. By utilizing the rise and fall of the float with changes in water level, it drives the movement of the blockage sealing the drain hole, thereby controlling the opening and closing of the drain hole. Alternatively, the drainage component 120 can also be a water level sensor and an on / off valve disposed at the drain hole. The water level sensor detects the water level in the condensate chamber 113. When the water level exceeds a preset level, the on / off valve is opened, and after a certain drainage time, the on / off valve automatically closes. The drainage component 120 automatically controls the opening and closing state of the drain hole according to the water level in the condensate chamber 113, without manual intervention, achieving a continuous and stable drainage effect.

[0038] A heating assembly 130 is disposed in the condensate chamber 113 and is configured to heat the liquid within the condensate chamber 113. Exemplarily, the heating assembly 130 can use electric heating to heat the liquid within the condensate chamber 113. The heating assembly 130 may include a heating wire and a power supply device. The power supply device supplies power to the heating wire, causing the heating wire to heat up, thereby heating the liquid within the condensate chamber 113, resulting in high heating efficiency. Alternatively, the heating assembly 130 can utilize the waste heat within the steam pipe 200 to heat the liquid within the condensate chamber 113. In cold environments, the condensate within the steam pipe 200 may freeze, causing the drainage assembly 120 to malfunction. Heating the condensate chamber 113 with the heating assembly 130 effectively prevents the liquid within the condensate chamber 113 from freezing, ensuring the normal operation of the drainage assembly 120.

[0039] The automatic steam trap 100 of this invention, by incorporating a heating component 130, heats the liquid in the condensate chamber 113, effectively preventing the liquid in the condensate chamber 113 from freezing and ensuring the normal operation of the drainage component 120. The drainage component 120 automatically controls the opening of the drainage hole based on the water level in the condensate chamber 113, requiring no manual intervention and achieving a continuous and stable drainage effect. Automatic control of drainage and heating reduces corrosion and wear inside the steam trap, thereby extending the service life of the automatic steam trap 100.

[0040] In some embodiments, the heating assembly 130 includes a heat pipe 131, which includes an inlet end 131a and an outlet end 131b located within the steam pipe 200, and a heat exchange section 131c located within the condensate chamber 113. In other words, the inlet end 131a is located within the steam pipe 200 and is responsible for receiving high-temperature steam from the steam pipe 200, while the outlet end 131b is also located within the steam pipe 200 and is used to discharge the steam after heat exchange. The heat exchange section 131c is located within the condensate chamber 113 and transfers the heat of the steam to the condensate by exchanging heat with the liquid in the condensate chamber 113, thereby effectively preventing it from freezing.

[0041] The air inlet 131a and the air outlet 131b are connected by a heat exchange section 131c, which is adapted to exchange heat with the liquid in the condensate chamber 113.

[0042] In this way, steam enters the heat pipe 131 through the inlet 131a and exchanges heat with the liquid in the condensate chamber 113 in the heat exchange section 131c. The steam after heat exchange is then discharged through the outlet 131b. In this way, the heat pipe 131 uses the heat from the steam pipe to heat the liquid in the condensate chamber 113 without the need for additional energy input, thus improving the overall energy efficiency of the system.

[0043] Optionally, the heat exchange section 131c can be designed as a spiral, corrugated or other shape to increase the turbulence of the fluid passing through the heat exchange section 131c, thereby improving the heat exchange effect of the heat exchange section 131c.

[0044] According to some embodiments of the present invention, the air inlet end 131a has an air inlet section 131d extending radially along the steam pipe 200, and the length of the portion of the air inlet section 131d located inside the steam pipe 200 is 1 / 6 of the diameter of the steam pipe 200.

[0045] Thus, by setting the ratio of the length of the portion of the air inlet section 131d located within the steam pipe 200 to the diameter of the steam pipe 200 to 1 / 6, it can be ensured that the air inlet section 131d can fully extend into the steam flow within the steam pipe 200 without significantly obstructing the steam flow, thereby maximizing the amount of steam entering the heat transfer pipe 131 and improving the heat exchange efficiency of the heat exchange section 131c. Furthermore, it ensures sufficient stability in the installation of the air guide pipe, preventing displacement or damage due to excessive steam flow.

[0046] According to some embodiments of this utility model, the heat exchange section 131c is provided with heat dissipation fins 132. The heat dissipation fins 132 increase the contact area between the heat exchange section 131c and the liquid in the condensate chamber 113, allowing more heat to be transferred to the liquid in the condensate chamber 113 per unit time, thereby improving the heat exchange efficiency of the heat exchange section 131c. This enables the heat exchange section 131c to respond quickly to changes in steam temperature, ensuring that the liquid in the condensate chamber 113 remains within a suitable temperature range.

[0047] Optionally, the heat dissipation fins 132 can be made of a high thermal conductivity material to ensure that heat can be quickly transferred to the condensate.

[0048] According to some embodiments of this utility model, the heat dissipation fins 132 are divided into multiple groups. This grouped design allows for more flexible heat management and enables the heat exchange section 131c to have a more uniform heat distribution. Furthermore, each group of heat dissipation fins 132 can be independently designed as needed to adapt to different heat exchange requirements.

[0049] Multiple sets of heat dissipation fins 132 are arranged at intervals along the peripheral wall of the heat exchange section 131c. This layout increases the coverage area of ​​the heat dissipation fins 132, allowing the heat from the heat exchange section 131c to be transferred more evenly to the liquid in the condensate chamber 113. Adjacent heat dissipation fins 132 are spaced apart axially along the heat exchange section 131c. This design helps reduce thermal interference between the heat dissipation fins 132, ensuring that each set of heat dissipation fins 132 can effectively exchange heat. In addition, the axial spacing allows the liquid in the condensate chamber 113 to flow more freely between the heat dissipation fins 132, reducing the flow resistance of the liquid in the condensate chamber 113 and improving the heat exchange efficiency of the heat exchange section 131c.

[0050] According to some embodiments of this utility model, a support member (not shown in the figure) is provided inside the valve body 110, and the heat conduction pipe 131 is fixedly installed inside the valve body 110 through the support member. In this way, the installation of the heat conduction pipe 131 inside the valve body 110 is more stable by the fixation of the support member, reducing the possibility of displacement or damage to the heat conduction pipe 131 due to vibration or thermal expansion.

[0051] Optionally, the support member can be an annular support frame, which surrounds the outer periphery of the heat pipe 131 and is typically circular or polygonal in structure. The annular support frame can be fixed to the inner wall of the valve body 110 by welding or bolting. It provides 360-degree support for the heat pipe 131, ensuring the stability of the heat pipe 131 in all directions. It is suitable for applications requiring high stability and durability. Alternatively, the support member can also include multiple support rods that extend from the inner wall of the valve body 110 to the heat pipe 131, typically arranged symmetrically. This structure is simple, easy to manufacture and install. The support rods can be adjusted as needed to accommodate different diameters of the heat pipe 131. Alternatively, the support member can be a U-shaped or V-shaped bracket, with the bottom of the bracket fixedly connected to the valve body 110 and the top supporting the heat pipe 131, thereby providing installation stability for the heat pipe 131. Of course, the support frame of this utility model can also be other structures, which can be selected by those skilled in the art according to their needs, and this embodiment does not limit this.

[0052] In some embodiments, the drainage assembly 120 includes a plug 121 and an elastic member 122. The plug 121 includes a plug post 121a, which is adapted to plug the drain hole. The size and shape of the plug post 121a are precisely designed to ensure that it can effectively plug the drain hole and prevent steam leakage.

[0053] A portion of the outer wall of the sealing column 121a protrudes circumferentially to form a mounting base 121b. The design of the mounting base 121b provides a stable mounting foundation for connecting the elastic element 122. The mounting base 121b has a mounting surface opposite to the side of the base plate 112 facing away from the condensate chamber 113. The elastic element 122 is disposed on the mounting surface, and the mounting base 121b is elastically connected to the base plate 112 through the elastic element 122. In other words, both ends of the elastic element 122 are fixedly connected to the mounting surface and the side of the base plate 112 facing away from the condensate chamber 113, respectively. Exemplarily, the elastic element 122 can be a spring, or it can be an elastic sleeve (such as a rubber sleeve) that can maintain its elastic properties during multiple cycles of opening and closing the drain hole. Through the action of the elastic element 122, the sealing column 121a can automatically adjust its position according to the water level in the condensate chamber 113, thereby achieving automatic opening and closing of the drain hole.

[0054] Optionally, the elastic element 122 can be sleeved on the outer wall of the sealing post 121a, or multiple elastic elements 122 can be arranged in an array around the sealing post 121a to provide sufficient elastic force for the sealing element 121 to block the drainage hole, or when the drainage hole is opened to drain water, the elastic element 122 drives the sealing element 121 to block the drainage hole.

[0055] According to some embodiments of this utility model, a spring sleeve 123 is fixedly connected to the mounting surface. The axis of the spring sleeve 123 is parallel to the axis of the sealing post 121a, and the elastic element 122 is disposed inside the spring sleeve 123. Thus, the parallelism between the axis of the spring sleeve 123 and the axis of the sealing post 121a ensures that the elastic element 122 experiences uniform force during operation, allowing it to undergo linear compression and release under the guidance of the spring seat. The spring seat provides a dedicated space for the elastic element 122, ensuring that it maintains the correct orientation and position during compression and release. This improves the reliability of the drainage assembly 120.

[0056] According to some embodiments of this utility model, when the sealing column 121a seals the drain hole, the end of the spring sleeve 123 facing away from the mounting surface abuts against the side of the base plate 112 facing away from the condensate cavity 113. The spring sleeve 123 is installed on the outside of the sealing column 121a, serving to guide and stabilize the movement of the sealing column 121a. It ensures that the sealing column 121a maintains the correct orientation during axial movement, preventing tilting or deviation. When the sealing column 121a seals the drain hole, the end of the guide sleeve facing away from the mounting surface abuts against the side of the base plate 112 facing away from the condensate cavity 113. This design provides additional support and stability to the sealing component 121, ensuring the sealing performance of the sealing column 121a within the condensate cavity 113 in the sealed state.

[0057] Understandably, since they need to be in direct contact with condensate, the spring sleeve 123 and the elastic element 122 of this invention can be made of wear-resistant and corrosion-resistant materials to ensure the reliability and durability of the automatic steam trap 100 during long-term use. Furthermore, to prevent condensate from accumulating inside the spring sleeve 123, a drainage gap can also be provided on the peripheral wall of the spring sleeve 123.

[0058] The working principle of the automatic drain valve 100 of this utility model is as follows:

[0059] Under normal operating conditions, steam enters the system through steam pipe 200. Due to the dissipation of heat from the steam, some of it condenses into water, accumulating in the condensate chamber 113. The inlet end 131a of the heat pipe 131 is located inside the steam pipe 200, absorbing the heat from the steam and transferring it to the condensate in the condensate chamber 113 through the heat exchange section 131c. The heat exchange section 131c is equipped with heat dissipation fins 132, which increases the heat exchange area, improves heat transfer efficiency, and prevents the condensate from freezing. When the water level in the condensate chamber 113 rises to a certain height, the weight of the water exceeds the elastic force exerted by the elastic element 122 on the sealing element 121, causing the sealing column 121a to move downward, opening the drain hole and allowing the condensate to drain. Then, under the elastic action of the elastic element 122, the sealing element 121 resets, sealing the drain hole.

[0060] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0061] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0062] In the description of this utility model, "multiple" means two or more.

[0063] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0064] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0065] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0066] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An automatic steam trap (100), characterized in that, For use in steam pipes (200), the automatic steam trap (100) includes: A valve body (110) is disposed on the lower side of the steam pipe (200), and the valve body (110) includes: Shell body (111); The bottom plate (112) is fixedly connected to the shell body (111), and the shell body (111) and the bottom plate (112) define a condensate chamber (113) that communicates with the steam pipe (200). The bottom plate (112) is provided with a drain hole, and the condensate chamber (113) communicates with the outside through the drain hole. A drainage assembly (120) is provided at the drainage hole, and the drainage assembly (120) is configured to control the conduction state of the drainage hole according to the water level in the condensate chamber (113); A heating assembly (130) is disposed in the condensate chamber (113) and the heating assembly (130) is configured to heat the liquid in the condensate chamber (113).

2. The automatic steam trap (100) according to claim 1, characterized in that, The heating assembly (130) includes a heat pipe (131), which includes an inlet end (131a) and an outlet end (131b) located in the steam pipe (200) and a heat exchange section (131c) located in the condensate chamber (113). The inlet end (131a) and the outlet end (131b) are connected by the heat exchange section (131c), which is adapted to exchange heat with the liquid in the condensate chamber (113).

3. The automatic steam trap (100) according to claim 2, characterized in that, The air inlet end (131a) has an air inlet section (131d) extending radially along the steam pipe (200), the length of the portion of the air inlet section (131d) located inside the steam pipe (200) being 1 / 6 of the diameter of the steam pipe (200).

4. The automatic steam trap (100) according to claim 2, characterized in that, The heat exchange section (131c) is provided with heat dissipation fins (132).

5. The automatic steam trap (100) according to claim 4, characterized in that, The heat dissipation fins (132) are divided into multiple groups, and the multiple groups of heat dissipation fins (132) are arranged at intervals along the peripheral wall of the heat exchange section (131c), and two adjacent heat dissipation fins (132) are spaced apart along the axial direction of the heat exchange section (131c).

6. The automatic steam trap (100) according to claim 2, characterized in that, The valve body (110) is provided with a support member, and the heat pipe (131) is fixedly installed in the valve body (110) through the support member.

7. The automatic steam trap (100) according to claim 1, characterized in that, The drainage assembly (120) includes a plug (121) and an elastic element (122). The plug (121) includes a plug post (121a) adapted to plug the drainage hole. A portion of the outer wall of the plug post (121a) protrudes circumferentially to form a mounting seat (121b). The mounting seat (121b) has a mounting surface opposite to the side of the base plate (112) facing away from the condensate chamber (113). The elastic element (122) is disposed on the mounting surface, and the mounting seat (121b) is elastically connected to the base plate (112) through the elastic element (122).

8. The automatic steam trap (100) according to claim 7, characterized in that, There are multiple elastic elements (122), and the multiple elastic elements (122) are arranged around the periphery of the sealing post (121a).

9. The automatic steam trap (100) according to claim 7, characterized in that, A spring sleeve (123) is fixed to the mounting surface. The axis of the spring sleeve (123) is parallel to the axis of the sealing post (121a). The elastic element (122) is disposed inside the spring sleeve (123).

10. The automatic steam trap (100) according to claim 9, characterized in that, When the sealing column (121a) blocks the drainage hole, the end of the spring sleeve (123) away from the mounting surface abuts against the side of the base plate (112) away from the condensate chamber (113).

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