Shell connecting structure of graphite falling film absorber

Abstract

The utility model relates to a shell connecting structure of a graphite falling film absorber, which comprises a shell, a water pipe fixing handle and a water pipe connector, the water pipe fixing handle is fixed on one side of the outer part of the shell, a first water pipe inner diameter communicated with the inner part of the shell is arranged in the water pipe fixing handle, and a sealing step is arranged in the middle of the first water pipe inner diameter. An inner screw is arranged at the end of the first water pipe inner diameter, a second water pipe inner diameter communicated with the first water pipe inner diameter is formed in the water pipe connector, the water pipe connector is in threaded connection with the inner screw through an outer screw, and a sealing boss matched with the sealing step is further arranged on the outer side of the water pipe connector. According to the scheme, an original integrated water pipe is mainly divided into the water pipe fixing handle and the water pipe connector with the two ends capable of being in threaded connection, and the sealing effect is achieved by means of the sealing step and the sealing boss. Compared with the prior art, the scheme has the advantages that the improvement point structure is simple, but is really considered for production, and the practicability is very high.

Description

TECHNICAL FIELD

[0001] The utility model relates to graphite equipment technical field especially relates to a shell connecting structure of graphite falling film absorber. BACKGROUND

[0002] The graphite falling film absorber is mainly used in high corrosive solution separation, such as application in nitric acid, concentrated sulfuric acid, chromic acid, hypochlorous acid, hydrogen peroxide, strong oxidizing salt solution.Compared with stainless steel or other materials, graphite has the effect of corrosion resistance, and long service life in high corrosive environment.

[0003] In the shell of the graphite falling film absorber, a plurality of section structures are generally adopted to be fixed into the shell body through flanges. The shell is also provided with a water inlet pipe and a water outlet pipe, and a heat exchange pipe made of graphite is installed inside, which exchanges heat through inlet and outlet water to cool.

[0004] At present, the water inlet pipe or the water outlet pipe on the shell of the graphite falling film absorber is made of graphite, and high-strength glue is used for bonding and fixing during installation. However, during manufacturing, the water inlet pipe or the water outlet pipe is integrally made, which reduces the production period, but the water pipe at this position will vibrate when starting and stopping, or the water pipe at this position will leak when being collided by external factors, affecting the subsequent separation of corrosive solution. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a shell connecting structure of graphite falling film absorber to solve the problems encountered in the above background technology.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A shell connecting structure of graphite falling film absorber, comprising a shell, a water pipe fixing handle and a water pipe joint, the water pipe fixing handle is fixed on one side of the outer part of the shell, a first water pipe inner diameter which is connected with the inside of the shell is arranged in the water pipe fixing handle, a sealing step is arranged in the middle part of the first water pipe inner diameter, an inner screw is arranged at the end of the first water pipe inner diameter, a second water pipe inner diameter which is connected with the first water pipe inner diameter is arranged in the water pipe joint, the water pipe joint is threadedly connected with the inner screw through the outer screw, and a sealing boss which is matched with the sealing step is further arranged on the outer side of the water pipe joint.

[0008] In the above-mentioned scheme, the sealing step is arranged with at least one step in the first water pipe inner diameter, and the first water pipe inner diameter is abutted together with the inner screw through the sealing step. Among them, the sealing step is arranged with two steps in the first water pipe inner diameter, and the lengths of the two steps are different.

[0009] Further, as a preferred scheme, the sealing step is provided with a sealing groove, and a sealing ring is installed in the sealing groove, and the sealing ring abuts against the sealing boss after the sealing step matches the sealing boss.

[0010] In implementation, it should be noted that: the outer end of the water pipe joint is provided with a matching sleeve for matching with the pipe opening of the water pipe; the inner diameter size of the first water pipe inner diameter is the same as the inner diameter size of the second water pipe inner diameter; the length of the sealing step is 2-5 cm, and the length of the inner screw is 2-4 cm.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the original integral water pipe is divided into a water pipe fixing handle and a water pipe joint which can be threadedly connected at two ends, and sealing effect is obtained by means of the sealing step and the sealing boss. When encountering external adverse factors, such as vibration or injury, the damaged component will be the water pipe joint which is the main force, and after discovery, it can be directly replaced to continue to work for separating the highly corrosive solution, and the whole shell does not need to be replaced. Although the improved point structure is simple compared with the prior art, it is indeed considered for production, and has strong practicability. BRIEF DESCRIPTION OF DRAWINGS

[0012] The disclosure of the utility model will be explained with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the protection scope of the utility model. In the drawings, the same reference signs are used to refer to the same parts. Among them:

[0013] Fig. 1 It is a structural schematic view of the utility model;

[0014] Fig. 2 It is a structural schematic view of the water pipe fixing handle in the utility model;

[0015] Fig. 3 It is a structural schematic view of the water pipe joint in the utility model.

[0016] Reference signs in the drawings: 1-outer shell; 11-pipe hole; 2-water pipe fixing handle; 21-first water pipe inner diameter; 22-sealing step; 23-inner screw; 3-water pipe joint; 31-second water pipe inner diameter; 32-sealing boss; 33-outer screw; 34-matching sleeve. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model will be further described in detail in combination with the drawings. These drawings are all simplified schematic views, and only illustrate the basic structure of the utility model in a schematic manner, so they only show the relevant components of the utility model.

[0018] According to the technical scheme of the utility model, a plurality of structure modes and implementation modes which can be replaced with each other can be proposed by the general skilled in the art without changing the essential spirit of the utility model. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the utility model, and should not be regarded as the whole of the utility model or as the limitation or restriction of the technical scheme of the utility model.

[0019] The technical scheme of the utility model will be further described in detail below in combination with the drawings and embodiments.

[0020] As Figs. 1-3 shown, a shell connecting structure of a graphite falling film absorber, comprising a shell 1, a water pipe fixing handle 2 and a water pipe joint 3, the water pipe fixing handle 2 is fixed on the outside of the shell 1 by glue, this fixing mode is the same as now, only the inlet and outlet water pipes are decomposed in the application, so that they are convenient to disassemble and replace, and the water pipe fixing handle 2 is at the root of the shell 1 of the graphite falling film absorber, so it is not easy to be shaken or hurt.

[0021] A first water pipe inner diameter 21 which is communicated with the inside of the shell 1 is formed in the water pipe fixing handle 2, a sealing step 22 is arranged in the middle of the first water pipe inner diameter 21, and the outer side of the water pipe joint 3 is further provided with a sealing boss 32 which is matched with the sealing step 22, and the two are tightly fixed together through the concave-convex structure.

[0022] Specifically, the sealing step 22 is provided with at least one step in the first water pipe inner diameter 21, and the first water pipe inner diameter 21 is abutted together with the inner screw 23 through the sealing step 22. And in the implementation, the sealing step 22 is provided with two steps in the first water pipe inner diameter 21, and the lengths of the two steps are different, so that they have better matching degree and are convenient to abut together after screwing. The length of the sealing step 22 can also be set as 2-5 cm, and the length of the inner screw 23 is 2-4 cm, and different sizes of lengths are matched according to the model specifications of the actual graphite falling film absorber.

[0023] As a preferred scheme, a sealing groove is arranged on the sealing step 22, and a sealing ring is installed in the sealing groove, and the sealing ring is abutted on the sealing boss 32 after the sealing step 22 is matched with the sealing boss 32. The two can be prevented from leaking after cooperation through the sealing ring. The sealing ring adopts polytetrafluoroethylene or high polymer material, and these materials can resist corrosion of various acids and alkalis, and also have the effect of resisting high temperature and high pressure.

[0024] In addition, the first water pipe inner diameter 21 is provided with an inner screw 23 at the end thereof, the water pipe joint 3 is provided with a second water pipe inner diameter 31 which is in communication with the first water pipe inner diameter 21, and the water pipe joint 3 is screwed with the inner screw 23 through an outer screw 33, so that the two are fixed together by screwing, having the effect of sealing and preventing leakage, and also having the effect of fastening, so that the two are fixed together.

[0025] When affected by external factors, mainly the water pipe joint 3 is subjected to vibration and impact, so the water pipe joint 3 is connected with the water pipe fixing handle 2 by screwing.

[0026] Further, the outer end of the water pipe joint 3 is provided with a matching sleeve 34 which is matched with the pipe opening of the water pipe. The outer diameter of the matching sleeve 34 is matched with the water inlet pipe or the water outlet pipe, and the matching sleeve 34 is inserted into the intermediate pipe and connected with the corresponding water pipe by interference fit. In order to match the outer diameter of the external water pipe, a bevel can be provided on the matching sleeve 34 for easy sealing and fixing.

[0027] In order to facilitate water flow, the inner diameter of the first water pipe inner diameter 21 is the same as the inner diameter of the second water pipe inner diameter 31, mainly for circulating cooling water, which exchanges heat with the heat exchange pipe installed in the shell 1 through the plurality of pipe holes 11, so as to reduce the temperature of the corrosion solution in the heat exchange pipe.

[0028] In summary, the present scheme mainly divides the original integral water pipe into a water pipe fixing handle 2 and a water pipe joint 3 which can be screwed at both ends, and obtains a sealing effect by means of the sealing step 22 and the sealing boss 32. When encountering external adverse factors, such as vibration or impact, the damaged part will be the water pipe joint 3 which is mainly subjected to force, and after discovery, it can be directly replaced and continue to work for high-corrosive solution separation, without the need to replace the entire shell 1. Although the improved structure is simple compared with the prior art, it is indeed considered for production, and has strong practicality.

[0029] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above description is only a specific embodiment of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A housing connection structure of a graphite falling film absorber, characterized by: The utility model provides a water pipe joint structure, including shell (1), water pipe fixed handle (2) and water pipe joint (3), water pipe fixed handle (2) is fixed in the outside one side of shell (1), and the first water pipe inner diameter (21) that is communicated with the inside of shell (1) is set up in water pipe fixed handle (2), and the middle part of first water pipe inner diameter (21) is equipped with sealing step (22), and the end of first water pipe inner diameter (21) is equipped with inner screw (23), water pipe joint (3) is set up the second water pipe inner diameter (31) that is communicated with first water pipe inner diameter (21) in, and water pipe joint (3) is connected through outer screw (33) and inner screw (23) thread, and the outside of water pipe joint (3) is equipped with sealing boss (32) with sealing step (22) matching.

2. A housing connection structure for a falling film graphite absorber according to claim 1, characterized in that: The sealing step (22) is provided with at least one step in the first water pipe inner diameter (21), and the first water pipe inner diameter (21) is abutted together with the inner screw (23) through the sealing step (22).

3. A housing connection structure for a falling film graphite absorber according to claim 2, characterized in that: The sealing step (22) is provided with two steps in the first water pipe inner diameter (21), and the lengths of the two steps are different.

4. A housing connection structure for a falling film graphite absorber according to claim 3, characterized in that: The sealing step (22) is provided with a sealing groove, and a sealing ring is installed in the sealing groove.

5. A housing connection structure for a falling film graphite absorber according to claim 1, characterized in that: The outside end of the water pipe joint (3) is provided with a matching sleeve (34) for matching with the pipe opening of the water pipe.

6. A housing connection structure for a falling film graphite absorber according to claim 1, characterized in that: The inner diameter size of the first water pipe inner diameter (21) is the same as the inner diameter size of the second water pipe inner diameter (31).

7. A housing connection structure for a falling film graphite absorber according to claim 1, characterized in that: The length of the sealing step (22) is 2-5 cm, and the length of the inner screw (23) is 2-4 cm.

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