Improved device for preventing condenser from being blocked in polyformaldehyde process
By setting up a back-liquid pipeline in the polyformaldehyde production process, spraying the paraformaldehyde liquid to the top of the condenser, the problem of condenser blockage is solved, and the effect of safety, environmental protection and cost reduction is achieved.
Patent Information
- Application Number
- CN202421312043.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-07
AI Technical Summary
In the polyformaldehyde production process, paraformaldehyde and formaldehyde are prone to form adhesive substances in the condenser, resulting in clogging of the condenser, difficulty in disassembling and cleaning, and affecting the environment and human health.
An improved device is designed to send the paraformaldehyde liquid to the top of the condenser for spraying by setting up a back liquid pipeline to rinse off the adhesive substance attached to the tube wall to prevent clogging.
It effectively avoids the internal blockage of the condenser, improves production safety and environmental protection, reduces production costs and increases profits.
Smart Images
Figure CN222550873U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of polyoxymethylene production technology, in particular to an improved device for preventing condenser blockage in the polyoxymethylene process. Background Art
[0002] During the production process, trioxymethylene, the raw material of polyoxymethylene (POM), will form a sticky state inside the condenser, that is, the formaldehyde and trioxymethylene will be blocked. Disassembly and cleaning will not only be time-consuming and laborious, but will also cause environmental pollution and harm the health of operators. In order to reduce the occurrence of this situation, a way is sought to solve the safety and environmental problems. Utility Model Content
[0003] The utility model provides an improved device for preventing a condenser from being blocked in a polyoxymethylene process, thereby solving the problem of sticking of formaldehyde and trioxymethylene in the existing condenser.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] An improved device for preventing condenser blockage in a polyoxymethylene process comprises a reactor, wherein the reactor is connected to a condenser via a pipeline, the condenser is connected to a receiving tank via a pipeline, the receiving tank is respectively connected to a trioxymethylene concentration tower and a trioxymethylene recovery tank via a drainage pipeline, one end of the drainage pipeline is connected to a return pipeline, and the other end of the return pipeline is connected to the top of the condenser.
[0006] Furthermore, the drainage pipeline includes a first drainage pipeline and a second drainage pipeline.
[0007] Furthermore, a first pump is disposed on the first liquid discharge pipeline, and a second pump is disposed downstream of the first pump.
[0008] Furthermore, the second liquid discharge pipeline is communicated with the liquid return pipeline.
[0009] Furthermore, a first valve is provided on the liquid return pipeline.
[0010] Furthermore, a second valve is provided on the second liquid discharge pipe.
[0011] The beneficial effects of the utility model are:
[0012] The utility model avoids the situation that the condenser is blocked by setting the liquid return pipeline, realizes safety and environmental protection, can effectively reduce the pollution to the environment and reduce the production cost of the polyoxymethylene device to achieve the purpose of increasing profits. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a schematic diagram of the device of the utility model.
[0015] Description of Figure Numbers:
[0016] 1. Reactor; 2. Condenser; 3. Receiving tank; 4. First liquid discharge pipeline; 5. Second liquid discharge pipeline; 6. Liquid return pipeline; 7. First valve; 8. Second valve. DETAILED DESCRIPTION
[0017] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0020] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0021] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0022] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0023] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0024] The utility model provides a technical solution: an improved device for preventing condenser blockage in a polyoxymethylene process, such as Figure 1 As shown, it includes a reactor 1, the reactor 1 is connected to a condenser 2 through a pipeline, the condenser 2 is connected to a receiving tank 3 through a pipeline, the receiving tank 3 is respectively connected to a trioxymethylene concentration tower and a trioxymethylene recovery tank through a drainage pipeline, the drainage pipeline is connected to one end of a liquid return pipeline 6, the other end of the liquid return pipeline 6 is connected to the top of the condenser 2, and a first valve 7 is provided on the liquid return pipeline 6 to send the trioxymethylene liquid to the top of the condenser 2 for spraying, so that the sticky trioxymethylene and formaldehyde attached to the tube wall are washed away.
[0025] The drainage pipeline includes a first drainage pipeline 4 and a second drainage pipeline 5 .
[0026] The first liquid discharge pipeline 4 is provided with a first pump, and a second pump is provided downstream of the first pump.
[0027] The second liquid discharge pipeline 5 is communicated with the liquid return pipeline 6 ; a second valve 8 is provided on the second liquid discharge pipeline.
[0028] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An improved device for preventing condenser blockage in a polyoxymethylene process, characterized in that: The invention comprises a reactor (1), wherein the reactor (1) is connected to a condenser (2) via a pipeline, the condenser (2) is connected to a receiving tank (3) via a pipeline, the receiving tank (3) is respectively connected to a trioxymethylene concentration tower and a trioxymethylene recovery tank via a drainage pipeline, the drainage pipeline is connected to one end of a return liquid pipeline (6), and the other end of the return liquid pipeline (6) is connected to the top of the condenser (2).
2. The improved device for preventing condenser blockage in polyoxymethylene process according to claim 1, characterized in that: The drainage pipeline comprises a first drainage pipeline (4) and a second drainage pipeline (5).
3. The improved device for preventing condenser blockage in polyoxymethylene process according to claim 2, characterized in that: The first liquid discharge pipeline (4) is provided with a first pump, and a second pump is provided downstream of the first pump.
4. The improved device for preventing condenser blockage in polyoxymethylene process according to claim 2, characterized in that: The second liquid discharge pipeline (5) is communicated with the liquid return pipeline (6).
5. The improved device for preventing condenser blockage in polyoxymethylene process according to claim 1, characterized in that: The liquid return pipeline (6) is provided with a first valve (7).
6. The improved device for preventing condenser blockage in polyoxymethylene process according to claim 2, characterized in that: The second liquid discharge pipeline (5) is provided with a second valve (8).