Hot water tank for formaldehyde production

Abstract

The utility model relates to the technical field of formaldehyde production, and discloses a hot water tank for formaldehyde production, which comprises a hot water tank body, the top end of the hot water tank body is provided with a detachable tank cover, and one side of the hot water tank body is connected with a water adding pipe and an alcohol adding pipe; a cleaning and scraping mechanism for cleaning the bottom of the hot water tank body is further arranged in the hot water tank body, the cleaning and scraping mechanism comprises a cleaning and scraping piece, and the cleaning and scraping piece is connected with a power piece for driving the cleaning and scraping piece to rotate; through the arrangement of the cleaning and scraping mechanism, the inner wall of the hot water tank body can be cleaned and scraped, the inner wall of the hot water tank body can be cleaned and scraped, the inner bottom of the hot water tank body can be cleaned and scraped, impurities are prevented from being accumulated at the inner bottom of the hot water tank body, and therefore cleaning of the hot water tank body is achieved; impurities are prevented from remaining on the inner wall of the hot water tank body, scale deposition on the inner wall of the hot water tank body is prevented, and follow-up use of the hot water tank body is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde production, in particular to a hot water tank for formaldehyde production. Background Art

[0002] At present, when producing formaldehyde, methanol is generally used as raw material and it is produced by methanol air oxidation method. In the process of producing formaldehyde by methanol oxidation, methanol gas and water are usually added to a hot water tank, and the electric heating tube in the hot water tank is used to heat them to promote the mixing of methanol gas and water to produce the required formaldehyde aqueous solution.

[0003] For example, in a Chinese patent with the announcement number CN219440809U, a hot water tank for formaldehyde production is disclosed. Although the patent uses a water inlet mechanism and a mounting mechanism, the water inlet mechanism can be used to filter the water entering the hot water tank body, thereby preventing the water from carrying impurities into the hot water tank body, and the mounting mechanism can be used to facilitate the disassembly and assembly of the tank end cover and the electric heating tube, thereby facilitating the cleaning of scale attached to the outer surface of the electric heating tube, but the above-mentioned hot water tank cannot clean the inner wall and bottom of the hot water tank during actual use, which easily leads to impurities remaining on the inner wall and bottom of the hot water tank, thereby causing internal scale accumulation in the hot water tank, affecting the subsequent use of the hot water tank, and is not conducive to the efficient production of formaldehyde. Utility Model Content

[0004] The utility model provides a hot water tank for formaldehyde production, which solves the problem that impurities are easily left on the inner wall and the bottom of the existing hot water tank, causing scale accumulation and affecting the subsequent use of the hot water tank.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot water tank for formaldehyde production, comprising a hot water tank body, a detachable tank cover is installed on the top of the hot water tank body, a water adding pipe and an alcohol adding pipe are connected to one side of the hot water tank body, a discharge valve is connected to the bottom of the hot water tank body, and two heating pipes extending into the hot water tank body are installed inside the tank cover; the tank cover and the hot water tank body can be fixed by bolts, and a handle is also installed on the tank cover to facilitate the disassembly and assembly between the tank cover and the hot water tank body;

[0006] The hot water tank body is also provided with a scraping mechanism for cleaning its bottom, and the scraping mechanism includes a scraping member, the scraping member is connected to a power member for driving it to rotate, and the scraping member includes a sleeve, connecting plates are fixed on both sides of the sleeve, and one end of the two connecting plates is provided with a side wall scraping block.

[0007] Preferably, the scraping member further comprises a bottom scraping plate arranged below the two connecting plates, and a plurality of connecting rods are connected between the bottom scraping plate and the connecting plates.

[0008] Preferably, the power member includes a motor fixed to the top of the tank cover, and a rotating shaft rotatably installed inside the tank cover, the bottom end of the rotating shaft extends into the hot water tank body, and the collar is sleeved on the bottom end of the rotating shaft.

[0009] Preferably, a stirring member is also provided on the rotating shaft, and the stirring member includes a plurality of fixed rings installed on the rotating shaft, a plurality of stirring plates are fixed on the outer circumference of the plurality of fixed rings, and convex rods are installed on both sides of the plurality of stirring plates, the plurality of stirring plates are located between two heating tubes, and the plurality of stirring plates are evenly spaced along the axial direction of the rotating shaft, so as to facilitate stirring of the water and achieve sufficient mixing of methanol gas and water.

[0010] Preferably, one side of the side wall scraping block is beveled to form a side wall scraping portion that contacts the bottom of the inner wall of the hot water tank body, so that the side wall scraping block can easily clean the inner wall of the hot water tank body.

[0011] Preferably, one side of the bottom scraper is beveled to form a bottom scraper portion in contact with the inner bottom of the hot water tank body, so that the bottom scraper can easily scrape the inner bottom of the hot water tank body.

[0012] Preferably, a clamping strip is installed on one side of the two side wall scraping blocks, a clamping groove for clamping the clamping strip is opened at one end of the two connecting plates, and locking screws are threaded on the two connecting plates, and the clamping strip has a threaded hole for the locking screw to be screwed in.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] (1) By setting the scraping mechanism, not only the inner wall of the hot water tank body can be scraped to clean the inner wall of the hot water tank body, but also the inner bottom of the hot water tank body can be scraped to prevent the accumulation of impurities at the inner bottom of the hot water tank body, thereby cleaning the hot water tank body, avoiding impurities remaining on the inner wall of the hot water tank body, preventing scale accumulation on the inner wall of the hot water tank body, facilitating the subsequent use of the hot water tank body, and facilitating the production of formaldehyde;

[0015] (2) When the heating tube is taken out for cleaning, the side wall scraper block and the bottom scraper plate can be cleaned at the same time, ensuring the scraping effect of the side wall scraper block and the bottom scraper plate on the hot water tank body. The side wall scraper block can be quickly disassembled and assembled through the clamping strip, the clamping groove and the locking screw, thereby facilitating the replacement of the side wall scraper block and facilitating the subsequent use of the side wall scraper block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the slot cover of the utility model;

[0020] Figure 4 This is one of the cross-sectional views of the scraping member of the utility model;

[0021] Figure 5 This is the second cross-sectional view of the scraping member of the utility model;

[0022] Figure 6 For this utility model Figure 5 A in the enlarged view;

[0023] In the figure: 1. hot water tank body; 2. tank cover; 3. motor; 4. water adding pipe; 5. alcohol adding pipe; 6. heating pipe; 7. rotating shaft; 8. stirring member; 81. fixing ring; 82. stirring plate; 83. protruding rod; 9. scraping member; 91. sleeve ring; 92. connecting plate; 93. side wall scraping block; 94. bottom scraping plate; 95. connecting rod; 96. clamping strip; 97. locking screw; 10. discharge valve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-Figure 6A hot water tank for formaldehyde production shown in the figure comprises a hot water tank body 1, a detachable tank cover 2 is installed on the top of the hot water tank body 1, a water adding pipe 4 and an alcohol adding pipe 5 are connected to one side of the hot water tank body 1, a discharge valve 10 is connected to the bottom of the hot water tank body 1, and two heating pipes 6 extending into the hot water tank body 1 are installed inside the tank cover 2; a pressure relief valve is also arranged on the tank cover 2 to facilitate the pressure relief of the hot water tank body 1 and ensure the safe production of formaldehyde;

[0026] A scraping mechanism for cleaning the bottom of the hot water tank body 1 is also provided inside the hot water tank body 1, and the scraping mechanism includes a scraping member 9, and the scraping member 9 is connected to a power member that drives it to rotate, and the scraping member 9 includes a collar 91, and connecting plates 92 are fixed on both sides of the collar 91, and one end of the two connecting plates 92 is provided with a side wall scraping block 93; one side of the side wall scraping block 93 is beveled to form a side wall scraping portion that contacts the bottom of the inner wall of the hot water tank body 1.

[0027] Specifically, Figure 2 and Figure 3 As shown, the power part includes a motor 3 fixed on the top of the tank cover 2 and a rotating shaft 7 rotatably installed inside the tank cover 2. The bottom end of the rotating shaft 7 extends into the hot water tank body 1, and the ring 91 is sleeved on the bottom end of the rotating shaft 7.

[0028] During the production of formaldehyde, methanol gas can be added into the hot water tank body 1 through the alcohol adding pipe 5, and then water is added into the hot water tank body 1 through the water adding pipe 4, and heated through the heating pipe 6 to promote the mixing of methanol gas and water to obtain the required formaldehyde solution, and then the mixed solution is discharged through the discharge valve 10 for further processing of the mixed solution to complete the production of formaldehyde solution;

[0029] When the heating pipe 6 needs to be cleaned, the tank cover 2 can be removed from the hot water tank body 1 to take the heating pipe 6 out of the hot water tank body 1, and then the heating pipe 6 is cleaned. After cleaning, the tank cover 2 is installed on the hot water tank body 1 to realize the installation of the heating pipe 6 into the hot water tank body 1, which is convenient for the subsequent use of the heating pipe 6; and after formaldehyde is produced, the motor 3 can be used to drive the rotating shaft 7 to rotate, so that the rotating shaft 7 drives the connecting plate 92 to rotate, and then the connecting plate 92 drives the side wall scraping block 93 to rotate along the inner wall of the hot water tank body 1, so that the side wall scraping block 93 scrapes the inner wall of the hot water tank body 1 through the side wall scraping part, so as to realize the cleaning of the inner wall of the hot water tank body 1, avoid impurities remaining on the inner wall of the hot water tank body 1, prevent the inner wall of the hot water tank body 1 from scaling, and facilitate the subsequent use of the hot water tank body 1.

[0030] Further, in order to improve the cleaning effect of the hot water tank body 1, as Figure 2-Figure 5As shown, the scraper 9 also includes a bottom scraper plate 94 arranged below the two connecting plates 92, and a plurality of connecting rods 95 are connected between the bottom scraper plate 94 and the connecting plates 92; one side of the bottom scraper plate 94 is beveled to form a bottom scraper portion that contacts the bottom of the hot water tank body 1.

[0031] While the rotating shaft 7 drives the side wall scraper block 93 to rotate along the inner wall of the hot water tank body 1, the connecting plate 92 drives the bottom scraper plate 94 to rotate synchronously through the connecting rod 95 to scrape the inner bottom of the hot water tank body 1 to prevent impurities from accumulating at the inner bottom of the hot water tank body 1. After scraping, impurities can be discharged through the discharge valve 10, thereby improving the cleaning effect of the hot water tank body 1, avoiding scale accumulation inside the hot water tank body 1, and facilitating the subsequent use of the hot water tank body 1.

[0032] Furthermore, in order to facilitate the thorough mixing of methanol gas and water, as Figure 2 and Figure 3 As shown, a stirring member 8 is also provided on the rotating shaft 7, and the stirring member 8 includes a plurality of fixed rings 81 installed on the rotating shaft 7, a plurality of stirring plates 82 are fixed on the outer circumference of the plurality of fixed rings 81, and protruding rods 83 are installed on both sides of the plurality of stirring plates 82, and the plurality of stirring plates 82 are located between the two heating tubes 6.

[0033] When the power member drives the scraper 9 to rotate, the plurality of stirring plates 82 fixed on the rotating shaft 7 by the fixing ring 81 rotate synchronously therewith, so as to stir the water in the hot water tank body 1 through the stirring plates 82 and the protruding rods 83, which is helpful for the full mixing of methanol gas and water.

[0034] In addition, in one embodiment, if Figure 2 as well as Figure 4-Figure 6 As shown, a clamping strip 96 is installed on one side of the two side wall scraping blocks 93, a clamping groove for the clamping strip 96 to be clamped is opened at one end of the two connecting plates 92, and a locking screw 97 is screwed on the two connecting plates 92, and the clamping strip 96 has a threaded hole for the locking screw 97 to be screwed in.

[0035] After the tank cover 2 is disassembled from the hot water tank body 1, when the heating tube 6 is taken out from the hot water tank body 1, the scraper 9 is driven by the rotating shaft 7 connected to the tank cover 2 to be taken out from the hot water tank body 1 synchronously, and then the side wall scraper block 93 and the bottom scraper plate 94 are cleaned to ensure the scraping effect of the side wall scraper block 93 and the bottom scraper plate 94 on the hot water tank body 1; and when the side wall scraper block 93 needs to be replaced, the locking screw 97 can be screwed down, and then the two side wall scraper blocks 93 can be pulled, The card strip 96 is moved out of the card slot on the connecting plate 92 to realize the disassembly of the side wall scraper block 93 and the connecting plate 92, and then the side wall scraper block 93 is replaced. After replacement, the side wall scraper block 93 and the connecting plate 92 can be clamped and fixed through the cooperation of the card strip 96 and the card slot, and then the locking screw 97 is screwed in to screw and fix the side wall scraper block 93 and the connecting plate 92, completing the installation of the side wall scraper block 93 and facilitating the subsequent use of the side wall scraper block 93.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot water tank for formaldehyde production, comprising a hot water tank body (1), characterized in that: A detachable tank cover (2) is installed at the top of the hot water tank body (1), and a water supply pipe (4) and an alcohol supply pipe (5) are connected to one side of the hot water tank body (1), a discharge valve (10) is connected to the bottom of the hot water tank body (1), and two heating pipes (6) extending into the interior of the hot water tank body (1) are installed inside the tank cover (2); The hot water tank body (1) is also provided with a scraping mechanism for cleaning the bottom thereof, and the scraping mechanism comprises a scraping member (9), the scraping member (9) is connected to a power member for driving the scraping member to rotate, and the scraping member (9) comprises a sleeve (91), connecting plates (92) are fixed on both sides of the sleeve (91), and one end of each of the two connecting plates (92) is provided with a side wall scraping block (93).

2. A hot water tank for formaldehyde production according to claim 1, characterized in that: The scraping member (9) further comprises a bottom scraping plate (94) arranged below the two connecting plates (92), and a plurality of connecting rods (95) are connected between the bottom scraping plate (94) and the connecting plates (92).

3. A hot water tank for formaldehyde production according to claim 2, characterized in that: The power component comprises a motor (3) fixed to the top of the tank cover (2), and a rotating shaft (7) rotatably mounted inside the tank cover (2); the bottom end of the rotating shaft (7) extends into the hot water tank body (1), and the collar (91) is sleeved on the bottom end of the rotating shaft (7).

4. A hot water tank for formaldehyde production according to claim 3, characterized in that: The rotating shaft (7) is also provided with a stirring member (8), and the stirring member (8) comprises a plurality of fixed rings (81) mounted on the rotating shaft (7), a plurality of stirring plates (82) are fixed on the outer circumference of the plurality of fixed rings (81), and protruding rods (83) are mounted on both sides of the plurality of stirring plates (82), and the plurality of stirring plates (82) are located between the two heating tubes (6).

5. A hot water tank for formaldehyde production according to claim 1, characterized in that: One side of the side wall scraping block (93) is beveled to form a side wall scraping portion that contacts the bottom of the inner wall of the hot water tank body (1).

6. A hot water tank for formaldehyde production according to claim 2, characterized in that: One side of the bottom scraper plate (94) is beveled to form a bottom scraper portion that contacts the bottom of the hot water tank body (1).

7. A hot water tank for formaldehyde production according to claim 1, characterized in that: A clamping strip (96) is installed on one side of the two side wall scraping blocks (93), a clamping groove for clamping the clamping strip (96) is opened at one end of the two connecting plates (92), and a locking screw (97) is screwed on the two connecting plates (92), and the clamping strip (96) has a threaded hole for screwing the locking screw (97) into.

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