Light water sealing plate

Abstract

The utility model discloses a light water sealing plate which comprises a supporting plate, a plurality of pipe holes penetrating through the supporting plate are formed in the supporting plate, and an enclosed anti-overflow frame is arranged on at least one face of the supporting plate along the edge. The device has the beneficial effects that the enclosure structure is designed, the adhesive is filled in the enclosure structure to ensure the water sealing effect, and the device is simple in structure, low in cost, very light and very good in water sealing effect.

Description

Technical Field

[0001] This utility model relates to a water seal plate, specifically a lightweight water seal plate. Background Technology

[0002] In high-pressure heaters with condensate cooling sections, the heat transfer coefficient changes significantly due to a phase change in the shell-side medium during heat exchange. Therefore, the heat transfer calculations for the steam cooling section and the condensate cooling section must be performed separately. During actual operation of the high-pressure heater, if steam flows into the condensate cooling section from the gap between the tube hole and the tube of the end plate (hereinafter referred to as the water seal plate), the steam will occupy the heat transfer area of ​​the condensate in the condensate section, reducing the heat transfer coefficient of the condensate section and ultimately causing the temperature difference at the end of the condensate cooling section to be too high. To prevent steam from flowing into the condensate cooling section, the water seal plate is modified.

[0003] Generally, there are two methods for treating water seal plates. The first method is to insert the expansion head of a hydraulic tube expander into the water seal plate from the tube in the tube sheet, hydraulically expanding the tube into the end plate tube hole to form a seal. The second method is to increase the thickness of the water seal plate. Since the pressure difference between the steam cooling section and the condensate cooling section is not large, increasing the thickness of the water seal plate can increase the resistance of steam flowing into the condensate cooling section from the gap between the end plate tube hole and the tube. When the thickness is increased to a certain level, it can ensure that steam does not enter the condensate cooling section under normal operating conditions.

[0004] While Method 1 reliably solves the problem of steam entering the condensate cooling section, it incurs high labor costs. Furthermore, because the water seal plate is relatively thin, positioning during tube expansion is difficult, and misalignment may lead to residual stress or even tube rupture. Method 2's reliability largely depends on the thickness of the water seal plate. Although it is simpler to manufacture, material costs are higher, and maintaining the precision of the heat exchange tube holes increases with thickness. Both methods result in unsatisfactory cost and reliability for the high-pressure heater's water seal plate. Utility Model Content

[0005] The purpose of this invention is to provide a lightweight water seal plate that solves the problems of high cost and poor performance.

[0006] In order to achieve these objectives and other advantages according to the present invention:

[0007] A lightweight water seal plate includes a support plate with a plurality of through holes, and at least one side of the support plate has an enclosing overflow frame along its edge.

[0008] Furthermore, matching heat exchange tubes are inserted into the aforementioned tube holes, the support plate is placed horizontally, and an anti-overflow frame is ensured on the upward-facing side of the support plate. Adhesive is poured into the anti-overflow frame to ensure that the anti-overflow frame, the gaps between the heat exchange tubes, and the gaps between the heat exchange tubes and the support plate are all filled with adhesive. After the adhesive solidifies, an adhesive layer is formed.

[0009] In one possible scenario, the aforementioned adhesive is an inorganic adhesive.

[0010] In one possible scenario, the aforementioned overflow prevention frame and support plate are integrally formed.

[0011] In one possible embodiment, the aforementioned overflow prevention frame is formed by bending a long strip of flat steel and welding it to the support plate.

[0012] In one possible scenario, at least one end of the aforementioned bore is chamfered.

[0013] The beneficial effects of this utility model are: designing an enclosed structure and filling it with adhesive to ensure the water seal effect. This structure is simple, low-cost, lightweight, easy to transport, and has a very good water seal effect.

[0014] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0015] Figure 1 This is a front view of the device;

[0016] Figure 2 This is a schematic diagram of the structure of the single-sided anti-overflow frame of this device;

[0017] Figure 3 This is a schematic diagram of the structure of the device after the heat exchange tubes are inserted;

[0018] Figure 4 This is a cross-sectional view of the single-sided anti-overflow frame after the device has been installed.

[0019] Figure 5 This is a cross-sectional view of the double-sided anti-overflow frame after the device is installed. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0021] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. The following description relates to...

[0022] In the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0023] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” as used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0024] It should be understood that although the terms first, second, third, etc., may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this specification, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0025] The solution proposed by this utility model is as follows:

[0026] like Figure 1-5 A lightweight water seal plate includes a support plate 1 with a plurality of through holes 11. At least one side of the support plate 1 has an enclosing overflow frame 2 along its edge. Matching heat exchange tubes 3 are inserted into the through holes 11. The support plate 1 is placed horizontally, ensuring the upward-facing side has the overflow frame 2. Adhesive is poured into the overflow frame 2, ensuring that the space between the heat exchange tubes 3 and between the heat exchange tubes 3 and the support plate 1 is filled with adhesive. After the adhesive solidifies, an adhesive layer 4 is formed. An inorganic adhesive is used.

[0027] In the above structure, the purpose of this utility can be achieved by setting an anti-overflow frame 2 on one side of the support plate 1 and adding an adhesive layer 4 on that side. However, it can also be designed as a structure with anti-overflow frames 2 on both sides, adding an adhesive layer 4 on both sides (the specific process is to first pour adhesive into the anti-overflow frame 2 on the upward side, and after it solidifies to form an adhesive layer 4, flip the support plate 1, pour adhesive into the anti-overflow frame 2 on that side, and solidify to form an adhesive layer 4), which increases the water seal effect.

[0028] Furthermore, how to ensure the entry of adhesive into the gaps between heat exchange tubes 3 and between heat exchange tubes 3 and support plate 1? This is mainly achieved by moving the heat exchange tubes 3 in an alternating manner, thereby allowing the adhesive to enter the gaps more effectively. Of course, there are certainly better ways to facilitate the entry of adhesive into the gaps, such as heating the adhesive to increase its fluidity, which will not be elaborated upon here.

[0029] The connection between the anti-overflow frame and the support plate can be: 1. One-piece molding. This method is less prone to glue leakage when forming the adhesive layer 4, but the cost is too high; 2. The anti-overflow frame 2 is made of a long strip of flat steel bent into shape, and it is welded and fixed to the support plate 1. This method is relatively low in cost.

[0030] The tube hole 11 has a chamfer at at least one end. The main purposes are: 1. to facilitate the insertion of the heat exchange tube 3, and 2. to facilitate the adhesive to better enter the gap between the heat exchange tube 3 and the support plate 1.

[0031] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A lightweight water seal plate, characterized in that, It includes a support plate, which has a plurality of through holes, and at least one side of the support plate has an enclosing anti-overflow frame along its edge.

2. The lightweight water seal plate as described in claim 1, characterized in that, The tube hole is fitted with a matching heat exchange tube, and the anti-overflow frame is filled with an adhesive layer. The adhesive layer fills the gaps between the heat exchange tubes and the gaps between the heat exchange tubes and the support plate.

3. A lightweight water seal plate as described in claim 2, characterized in that, The adhesive in the adhesive layer is an inorganic adhesive.

4. A lightweight water seal plate as described in claim 2 or 3, characterized in that, The overflow prevention frame and the support plate are integrally formed.

5. A lightweight water seal plate as described in claim 2 or 3, characterized in that, The overflow prevention frame is made of a long strip of flat steel bent into shape, and it is welded and fixed to the support plate.

6. A lightweight water seal plate as described in claim 1, characterized in that, The tube hole has a chamfer at at least one end.

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