Negative pressure condensing tank with wall scraping cleaning function

Abstract

The utility model provides a kind of negative pressure condensing tank with wall scraping cleaning function, it is related to chemical equipment technical field, mainly for solving the problem that crystalline in the upper part of tank wall cannot be scraped due to feed pipe block in prior art.The negative pressure condensing tank includes tank body, feed pipe and scraper are arranged in tank body, feed pipe is arranged in tank body from top to bottom, scraper is driven by motor, rotating shaft, support arm;The scraper is composed of upper scraper and lower scraper, wherein, the upper scraper is formed by the intersection of one clockwise spiral scraping belt and one counterclockwise spiral scraping belt;Annular groove is fixed in tank body, upper ring belt is fixed on the upper part of upper scraper, and upper ring belt is upwardly pressed in annular groove.Spiral scraping belt has the following advantages:1, greatly improves the overall stiffness of upper scraper;2, even if deformation occurs, crystalline can also be scraped;3, axial compression will produce radial expansion, the expansion can make upper scraper tightly press the inner wall of tank body, and then scrape the crystalline in the upper part of tank wall.

Description

Technical Field

[0001] This utility model is specifically a negative pressure condenser with a wall scraping and cleaning function, which relates to the field of chemical equipment technology. Background Technology

[0002] See attached document Figure 1 A negative pressure condenser is equipped with a negative pressure pipe 4, a feed pipe 2, a discharge port 3, and a condensate jacket 5 on its tank body 1. The negative pressure forces the chemical raw material into the tank body 1 through the feed pipe 2. The feed pipe 2 is positioned from top to bottom within the tank body 1 because the chemical raw material is a gas-liquid mixture; flowing through the feed pipe facilitates the cooling and liquefaction of the gaseous chemical raw material into a liquid state.

[0003] Because the condensate jacket 5 has a cooling function, liquid chemical raw materials in tank 1 easily condense into crystals on the tank wall. If the crystals are not scraped off in time, they will become thicker and thicker, affecting chemical production. Therefore, a pair of scrapers 9 are installed inside tank 1. The scrapers 9 are connected to the motor 6 via support arms 8 and a rotating shaft 7, and their function is to scrape off the condensed crystals from the liquid chemical raw materials. In actual production, it has been found that gaseous chemical raw materials cannot be completely liquefied; some of the gaseous chemical raw materials will condense on the upper part of the tank wall and form crystals. The current problem is that if the crystals on the upper part of the tank wall are to be scraped off, the length of the scrapers must be increased, and support arms must be installed on the upper part of the scrapers; otherwise, the scrapers will deform severely due to excessive cantilever length, making it impossible to scrape off the crystals. However, due to the obstruction of the feed pipe, it is impossible to install support arms on the upper part of the scrapers.

[0004] References:

[0005] Chinese Patent: CN217248603U Utility Model Content

[0006] To overcome the shortcomings of the prior art, this utility model discloses a negative pressure condenser with a wall scraping and cleaning function, adopting the following technical solution:

[0007] A negative pressure condenser with a wall-scraping cleaning function includes a tank body, an inlet pipe and a scraper inside the tank body. The inlet pipe is arranged from top to bottom inside the tank body. The scraper is driven by a motor, a rotating shaft and a support arm, and is used to scrape off the crystals adhering to the inner wall of the tank body. The scraper consists of an upper scraper and a lower scraper. The upper scraper is formed by the intersection of a clockwise spiral scraper and a counterclockwise spiral scraper. An annular groove is fixed inside the tank body. An upper annular band is fixed on the upper part of the upper scraper and presses upward against the annular groove.

[0008] Further improve the technical solution: A lower ring belt is provided between the upper scraper and the lower scraper, and the lower ring belt is coaxial with the upper ring belt.

[0009] Further improve the technical solution: there is a pair of lower scrapers, and the pair of lower scrapers are symmetrically arranged about the rotation axis.

[0010] Further improve the technical solution: A negative pressure pipe is installed on the tank body, and the negative pressure pipe is located at the top of the tank body.

[0011] Further improve the technical solution: A discharge port is set on the tank body, and the discharge port is located at the bottom of the tank body.

[0012] Further technical improvement: A condensate jacket is installed on the outside of the tank.

[0013] After implementing the above technical solution, the beneficial effects of this utility model compared to the prior art are:

[0014] The scraper of this invention consists of an upper scraper and a lower scraper, wherein the upper scraper is formed by the intersection of a clockwise spiral scraping band and a counterclockwise spiral scraping band. Compared with existing scrapers, the upper scraper composed of clockwise and counterclockwise spiral scraping bands has at least the following advantages:

[0015] 1. The clockwise and counterclockwise spiral scrapers intersect in space, which can greatly improve the overall rigidity of the upper scraper and reduce the amount of deformation;

[0016] 2. The scraper is a spiral scraper, which can remove crystals even if it deforms;

[0017] 3. The clockwise and counterclockwise spiral scrapers form a spring-like structure. When subjected to axial pressure, they will expand in the radial direction. This expansion can cause the upper scraper to press tightly against the inner wall of the tank, thereby scraping off the crystals on the upper part of the tank wall. Attached Figure Description

[0018] Appendix Figure 1 The diagram shown is a schematic of the overall structure of an existing negative pressure condenser.

[0019] Appendix Figure 2 The diagram shown is a structural schematic of the tank.

[0020] Appendix Figure 3 The diagram shown is a three-dimensional structural schematic of the scraper.

[0021] Appendix Figure 4 The diagram shown is a schematic representation of the overall structure of this negative pressure condenser.

[0022] Appendix Figure 5 The attached image shows the attached image. Figure 4 A partial structural diagram.

[0023] In the attached diagram: 1. Tank body; 1.1. Circular groove; 2. Feed pipe; 3. Discharge port; 4. Negative pressure pipe; 5. Condensate jacket; 6. Motor; 7. Rotating shaft; 8. Support arm; 9. Scraper; 9.1. Lower scraper; 9.2. Lower ring belt; 9.3. Upper scraper; 9.31. Clockwise spiral scraper belt; 9.32. Counterclockwise spiral scraper belt; 9.4. Upper ring belt. Detailed Implementation

[0024] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of this utility model and are not intended to limit the scope of protection of this utility model. It should be noted that in the description of this utility model, terms such as "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation and positional relationship, and therefore should not be construed as a limitation of this utility model. It should also be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] A negative pressure condenser with a wall-scraping cleaning function is disclosed, relating to the field of chemical equipment technology. It primarily addresses the problem in existing technologies where crystals on the upper part of the tank wall cannot be scraped off due to obstruction by the feed pipe. The composition and working principle of this negative pressure condenser are described in detail below.

[0026] See attached document Figure 2 This negative pressure condenser includes a tank body 1, on which a negative pressure pipe 4, a feed pipe 2, a discharge port 3, and a condensate jacket 5 are installed. The feed pipe 2 is installed inside the tank body 1 from top to bottom, the discharge port 3 is located at the bottom of the tank body 1, and the negative pressure pipe 4 is located at the top of the tank body 1. The chemical raw material introduced into the feed pipe 2 is a gas-liquid mixture. The function of the negative pressure pipe 4 is to draw the chemical raw material into the tank body 1 through the negative pressure suction. The condensate jacket 5 is located on the outside of the tank body 1, and its function is to cool the chemical raw material, liquefying the gaseous chemical raw material into a liquid state. Unlike existing tank bodies 1, an annular groove 1.1 is fixed on the upper part of the inner wall of the tank body 1.

[0027] See attached document Figure 3To address the issue of unremovable crystals on the upper part of the tank wall, scraper 9 consists of an upper scraper 9.3 and a lower scraper 9.1. The upper scraper 9.3 is formed by the intersection of a clockwise spiral scraper band 9.31 and a counterclockwise spiral scraper band 9.32. The lower scrapers 9.1 are a pair, symmetrically arranged about the rotation axis 7. An upper ring band 9.4 is fixed above the upper scraper 9.3, and a lower ring band 9.2 is positioned between the upper scraper 9.3 and the lower scraper 9.1, coaxially arranged with the upper ring band 9.4.

[0028] The upper scraper 9.3 is formed by the intersection of a clockwise spiral scraper band 9.31 and a counterclockwise spiral scraper band 9.32, which can produce at least the following beneficial effects:

[0029] 1. The clockwise spiral scraper 9.31 and the counterclockwise spiral scraper 9.32 intersect in space, which can greatly improve the overall rigidity of the upper scraper 9.3;

[0030] 2. Even if the spiral scraper belt deforms, it can still remove crystals;

[0031] 3. The clockwise spiral scraper 9.31 and the counterclockwise spiral scraper 9.32 form a spring-like structure. When axially compressed, they will expand in the radial direction. This expansion can cause the upper scraper 9.3 to press tightly against the inner wall of the tank 1, thereby scraping off the crystals on the upper part of the tank wall.

[0032] See attached document Figure 3 and attached Figure 4 A motor 6 and a reducer are installed at the top of the tank 1. The scraper 9 is driven to rotate by the motor 6, the rotating shaft 7, and the support arm 8 to scrape off the crystals adhering to the inner wall of the tank 1.

[0033] See attached document Figure 4 and attached Figure 5 When installing the scrapers, compress the clockwise spiral scraper 9.31 and the counterclockwise spiral scraper 9.32, causing the upper ring 9.4 to press upwards against the annular groove 1.1. The function of the annular groove 1.1 is to apply a pre-pressure to the clockwise spiral scraper 9.31 and the counterclockwise spiral scraper 9.32, causing them to expand radially, thereby scraping off the crystals on the upper part of the tank wall. Due to the pre-pressure, even if the spiral scraper wears down, it can still be pressed tightly against the inner wall of the tank 1, scraping off the crystals on the upper part of the tank wall.

[0034] It is worth noting that the content not described in detail in the above embodiments is prior art. It is also worth noting that any additions, subtractions, substitutions, and improvements made by those skilled in the art based on the structure and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A negative pressure condenser with a wall-scraping cleaning function, comprising a tank body, an inlet pipe and a scraper disposed within the tank body, the inlet pipe being disposed from top to bottom within the tank body, and the scraper being driven by a motor, a rotating shaft, and a support arm, for scraping away crystals adhering to the inner wall of the tank body, characterized in that: The scraper consists of an upper scraper and a lower scraper. The upper scraper is formed by the intersection of a clockwise spiral scraper and a counterclockwise spiral scraper. An annular groove is fixed inside the tank. An upper annular band is fixed on the upper part of the upper scraper and presses upward against the annular groove.

2. The negative pressure condensing can with wall scraping cleaning function according to claim 1, characterized in that: A lower ring belt is provided between the upper scraper and the lower scraper, and the lower ring belt is coaxial with the upper ring belt.

3. The negative pressure condensing can with wall scraping cleaning function according to claim 2, characterized in that: There is a pair of lower scrapers, and the pair of lower scrapers are symmetrically arranged about the axis of rotation.

4. The negative pressure condensing can with wall scraping cleaning function according to claim 1, characterized in that: A negative pressure pipe is installed on the tank body, and the negative pressure pipe is located at the top of the tank body.

5. The negative pressure condensing can with wall scraping cleaning function according to claim 1, characterized in that: A discharge port is provided on the tank body, and the discharge port is located at the bottom of the tank body.

6. A negative pressure condenser with wall scraping and cleaning function as described in claim 1, characterized in that: A condensate jacket is installed on the outside of the tank.

Images