Falling film evaporator of novel falling film head assembly

Abstract

The utility model discloses a falling-film evaporator of a novel falling-film head assembly, which comprises an upper falling-film tube, a falling-film tube, a threaded tube fixedly connected to the lower end of the upper falling-film tube, a threaded groove matched with the threaded tube and arranged in the falling-film tube, and a falling-film tube fixedly connected to the lower end of the threaded tube. A threaded column is fixedly connected to the lower end of the falling film pipe, fixing blocks which are oppositely arranged are fixedly connected to the falling film pipe, a rotating annular plate is rotatably arranged on the circumference of the upper falling film pipe, guide rods are fixedly connected to the lower end of the rotating annular plate and inserted into the fixing blocks, overflow ports which are oppositely arranged are formed in the upper falling film pipe, and the overflow ports are fixedly connected to the lower end of the rotating annular plate. Fastening openings which are oppositely arranged are formed in the descending film pipe. Compared with the prior art, the utility model has the advantage that the positioning accuracy of the falling film head assembly can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to falling film evaporator technical field, specifically point to a kind of falling film evaporator of novel falling film head assembly. BACKGROUND

[0002] Falling film head assembly is the most important component to determine whether fluid can successfully fall film in heat exchanger, falling film evaporator can be used for liquid evaporation concentration, falling film evaporator has the characteristics of high heat transfer efficiency, small temperature difference loss, short material residence time, not easy to deteriorate, falling film evaporator can reduce steam consumption, can achieve the effect of energy saving, when waste heat steam can be fully supplied, falling film evaporator can not generate steam completely, falling film head assembly has important role in falling film evaporator.

[0003] At present, in order to make the distribution hole height of falling film head assembly consistent, V-shaped groove is opened at the top of nut, the existing method can alleviate the problem that the distribution hole height of falling film head assembly is inconsistent, but there is a problem that the tightening degree of each nut is different, which can cause the distribution hole height of falling film head assembly to be inconsistent, and the positioning accuracy of falling film head assembly is required to be high in actual installation and use, and the positioning accuracy of existing falling film head assembly is low. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems of overcoming the above technical defects, and provides a falling film evaporator of novel falling film head assembly, which can improve the positioning accuracy of falling film head assembly.

[0005] To solve the above technical problems, the utility model provides a technical scheme: a falling film evaporator of novel falling film head assembly, which comprises an upper falling film pipe and a lower falling film pipe, the upper falling film pipe is provided with distribution holes arranged uniformly, the upper falling film pipe is provided with a threaded pipe fixed at the lower end, the lower falling film pipe is provided with a threaded groove matched with the threaded pipe, the lower end of the lower falling film pipe is fixedly connected with a threaded column, the lower falling film pipe is fixedly connected with fixed blocks arranged oppositely, the upper falling film pipe is rotatably provided with a rotating annular plate, the lower end of the rotating annular plate is fixedly connected with a guide rod, the guide rod is inserted into the fixed blocks, the upper falling film pipe is provided with overflow ports arranged oppositely, and the lower falling film pipe is provided with fastening ports arranged oppositely.

[0006] Compared with the prior art, the utility model has the advantages that the upper falling film pipe and the lower falling film pipe are installed together through the threaded pipe and the threaded groove, the guide rod is inserted and slid in the fixed blocks during installation, the guide rod sliding in the fixed blocks can provide a guiding effect for the installation process and can avoid the inconsistent height of the distribution holes, so that the positioning accuracy of the falling film head assembly can be improved.

[0007] As improvement, the inner wall of the distribution hole is parallel to the tangent of the inner wall of the upper falling film tube.

[0008] As improvement, the inner diameter and wall thickness of the upper falling film tube are same as those of the lower falling film tube.

[0009] As improvement, the cross section diameter of the distribution hole is 2-6mm.

[0010] As improvement, the welding connection between the fixing block and the falling film tube can improve the stability of the connection between the fixing block and the falling film tube.

[0011] As improvement, the surface of the guide rod and the inner wall of the fixing block are both smooth material, the inner wall of the rotating ring plate is fixedly connected with a limiting plate, and the upper falling film tube is provided with an annular sliding groove matched with the limiting plate, so that the guide rod is inserted and slid in the fixing block. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a perspective view of a falling film evaporator of a novel falling film head assembly.

[0013] Figure 2 is a front view of a falling film evaporator of a novel falling film head assembly.

[0014] Figure 3 is a front view of a falling film evaporator of a novel falling film head assembly in an installed state.

[0015] Figure 4 is a top view of a falling film evaporator of a novel falling film head assembly.

[0016] Figure 5 is a bottom view of a falling film evaporator of a novel falling film head assembly.

[0017] As shown in the drawings: 1, upper falling film tube; 2, lower falling film tube; 3, threaded tube; 4, threaded groove; 5, overflow port; 6, fastening port; 7, distribution hole; 8, rotating ring plate; 9, guide rod; 10, fixing block; 11, threaded column. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application; based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0019] The drawings are combined Figure 1 , the drawings are combined Figure 2 , the drawings are combinedFigure 3 , attached Figure 4 and attached Figure 5 , a falling film evaporator of a new type falling film head assembly, comprising upper falling film pipe 1 and lower falling film pipe 2, the inner diameter and wall thickness of the upper falling film pipe 1 and the lower falling film pipe 2 are the same, the upper falling film pipe 1 is internally provided with not less than one and uniformly arranged distribution holes 7, the inner wall of the distribution hole 7 is parallel to the tangent of the inner wall of the upper falling film pipe 1, the cross section diameter of the distribution hole 7 is 2-6mm, the lower end of the upper falling film pipe 1 is fixedly connected with threaded pipe 3, the lower falling film pipe 2 is internally provided with threaded groove 4 matched with the threaded pipe 3, the lower end of the lower falling film pipe 2 is fixedly connected with threaded column 11.

[0020] combined with attached Figure 1 , attached Figure 2 and attached Figure 3 , the lower falling film pipe 2 is fixedly connected with oppositely arranged fixed blocks 10, the fixed blocks 10 and the lower falling film pipe 2 are weldedly connected, the periphery of the upper falling film pipe 1 is rotatably provided with rotating ring plate 8, the lower end of the rotating ring plate 8 is fixedly connected with guide rod 9, the guide rod 9 is inserted in the fixed block 10, the surface of the guide rod 9 and the inner wall of the fixed block 10 are both smooth material, the inner wall of the rotating ring plate 8 is fixedly connected with limiting plate, the upper falling film pipe 1 is internally provided with annular sliding groove matched with the limiting plate, the upper falling film pipe 1 is provided with oppositely arranged overflow ports 5, the lower falling film pipe 2 is provided with oppositely arranged fastening ports 6.

[0021] The utility model discloses in specific implementation, when using, when need to use falling film assembly, the threaded pipe of upper falling film pipe lower end is aligned with threaded groove and rotates upper falling film pipe, so can install threaded pipe in threaded groove, in the process of threaded installation, rotating ring plate can rotate relative to upper falling film pipe, guide rod can slide downward along fixed block, and guide rod cooperates fixed block and can provide guiding effect for the process of threaded installation, so that the precision of upper falling film pipe and lower falling film pipe installed together is improved, a plurality of distribution holes are used for the distribution of liquid, and when rated flow, there is certain liquid level difference between liquid level and distribution hole, can avoid the uneven distribution caused by slight difference during installation, so that the positioning precision of falling film head assembly can be improved, and the difference during installation is reduced.

[0022] It should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0023] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

[0024] The above describes the present application and its embodiments, which are not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments to the technical solution, which should belong to the protection scope of the present application.

Claims

1. A falling film evaporator of a new type falling film head assembly, comprising an upper falling film tube (1) and a lower falling film tube (2), the upper falling film tube (1) is provided with not less than one and uniformly arranged distribution holes (7), characterized in that: The application relates to a threaded pipe (3) fixed to the lower end of an upper falling film tube (1), a threaded groove (4) is arranged in the falling film tube (2) and matched with the threaded pipe (3), a threaded column (11) is fixed to the lower end of the falling film tube (2), opposite fixing blocks (10) are arranged on the falling film tube (2), a rotating ring-shaped plate (8) is arranged on the periphery of the upper falling film tube (1), a guide rod (9) is fixed to the lower end of the rotating ring-shaped plate (8), the guide rod (9) is inserted into the fixing block (10), opposite overflow ports (5) are arranged on the upper falling film tube (1), and opposite fastening ports (6) are arranged on the falling film tube (2).

2. A falling film evaporator of the novel falling film head assembly as claimed in claim 1, wherein: The tangent line of the inner wall of the distribution hole (7) is parallel to the inner wall of the upper falling film tube (1).

3. The falling film evaporator of novel falling film head assembly as claimed in claim 1 wherein: The inner diameter and wall thickness of the upper falling film tube (1) and the falling film tube (2) are the same.

4. The falling film evaporator of novel falling film head assembly as claimed in claim 1 wherein: The cross-section diameter of the distribution hole (7) is 2-6 mm.

5. The falling film evaporator of novel falling film head assembly as claimed in claim 1 wherein: The fixing block (10) and the falling film tube (2) are welded.

6. A falling film evaporator of the novel falling film head assembly as claimed in claim 1, wherein: The surface of the guide rod (9) and the inner wall of the fixing block (10) are both smooth, the inner wall of the rotating ring-shaped plate (8) is fixed with a limiting plate, and an annular sliding groove matched with the limiting plate is arranged in the upper falling film tube (1).

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