Formaldehyde cooling device

Abstract

The utility model relates to a formaldehyde cooling device, including: a heat exchange component, the heat exchange component includes a plurality of plate bodies arranged at intervals; a filler, arranged at the lower end of the heat exchange component; a water pool, arranged at the lower end of the filler; and a spray component, arranged at the upper and lower sides of the heat exchange component. The spray component includes: an upper spray pipe, arranged at the upper end of the plate body, the spray direction of the upper spray pipe is downward; a lower spray pipe, arranged at the lower end of the plate body, the spray direction of the lower spray pipe is upward. The upper spray pipe includes: an upper tube body; a first upper nozzle, opened on the tube wall of the upper tube body, the spray direction is toward the adjacent plate body; a second upper nozzle, opened on the tube wall of the upper tube body, the spray direction is toward the gap between the plate bodies; a guide plate, arranged on the outer periphery of the upper tube body, a gap is arranged between the outer edge of the guide plate and the plate body, which can further enhance the cooling efficiency to meet the demand for formaldehyde cooling.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde production, in particular to a formaldehyde cooling device. Background Art

[0002] In the prior art, an evaporative cooler is generally used to cool formaldehyde.

[0003] The evaporative cooler uses water and air as coolants. It mainly uses the evaporation of part of the water to take away the heat released by the condensation process of the process medium. Its outer shell is a thin steel plate and a rectangular box, which contains a condensing device, a water sprinkling device, a filler, a water collector, a water collecting tray at the bottom, a circulating water pump outside the box, and an axial flow fan on the top of the box. When the evaporative cooler is working, the cooling water is sent by the water pump to the nozzle on the upper part of the condensing device, and evenly sprayed on the outer surface of the condensing device to form a very thin water film. The high-temperature process medium enters from the upper part of the condensing device, and the condensed liquid flows out from the lower part. After the water sprayed on the condensing device absorbs the heat of the high-temperature process medium, part of it evaporates and becomes water vapor, and the rest falls into the lower water collecting tray for circulation by the water pump. The fan forces air to pass through the condensing device, promotes the evaporation of the water film, strengthens the heat release of the condensing device, and makes the water droplets after absorbing heat be cooled by the air during the falling process. The water droplets that are not vaporized during the evaporation process fall back into the water tank after passing through the water collector to reduce water consumption. In addition, a float valve is provided in the water tank. When the water in the water tank is continuously evaporated and consumed, and the water level is too low, the float valve will automatically open to replenish cooling water.

[0004] However, since formaldehyde releases a large amount of heat when being cooled, the cooling efficiency of existing evaporative coolers cannot fully meet the cooling needs of formaldehyde. Therefore, an evaporative cooler with higher cooling efficiency is needed to meet the demand for formaldehyde cooling. Utility Model Content

[0005] In order to solve the technical problems existing in the background technology, the utility model provides a formaldehyde cooling device, which can further enhance the cooling efficiency to meet the demand for formaldehyde cooling.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Formaldehyde cooling device, comprising:

[0008] A heat exchange assembly, the heat exchange assembly comprising a plurality of plates arranged at intervals;

[0009] A filler, arranged at the lower end of the heat exchange component;

[0010] A water tank is provided at the lower end of the filler;

[0011] A feed inlet, connected to the inlets of a plurality of plates;

[0012] A discharge port, connected to the outlets of several plates;

[0013] The spray assembly is arranged on the upper and lower sides of the heat exchange assembly.

[0014] Further, the spray assembly includes:

[0015] An upper spray pipe is arranged at the upper end of the plate body, and the spray direction of the upper spray pipe is downward;

[0016] The lower spray pipe is arranged at the lower end of the plate body, and the spraying direction of the lower spray pipe is upward.

[0017] Further, the upper spray pipe comprises:

[0018] Upper tube body;

[0019] The first upper nozzle is arranged on the tube wall of the upper tube body, and the spraying direction is toward the adjacent plate body.

[0020] Further, the upper spray pipe comprises:

[0021] The second upper nozzle is arranged on the tube wall of the upper tube body, and the spraying direction is toward the gap between the plate bodies.

[0022] Further, the upper spray pipe comprises:

[0023] The guide plate is arranged on the outer periphery of the upper tube body, and a gap is arranged between the outer edge of the guide plate and the plate body.

[0024] Furthermore, the outer edge of the guide plate is provided with guide holes.

[0025] Further, the lower spray pipe comprises:

[0026] Lower tube body;

[0027] The lower nozzle is arranged on the tube wall of the lower tube body, and the spraying direction is toward the gap between the plate bodies.

[0028] Furthermore, a transverse outwardly protruding guide groove is provided on the plate body.

[0029] Furthermore, the guide groove includes:

[0030] A groove wall, wherein a groove cavity opening upward is formed between the groove wall and the plate body;

[0031] The bottom hole is arranged at the lower end of the groove wall and communicated with the groove cavity.

[0032] Beneficial effects of the utility model:

[0033] (1) An upper spray pipe and a lower spray pipe are provided to spray the plate body from both upper and lower directions, making the spraying of the plate body more uniform, preventing the spray water at the bottom of the plate body from drying up, increasing the effective heat exchange area of ​​the plate body, and improving the heat exchange efficiency of the plate body.

[0034] (2) The upper spray pipe is provided with a first upper nozzle and a guide plate. The water sprayed from the first upper nozzle can flow evenly from the gap between the guide plate and the plate body to the surface of the plate body, forming a uniform water film on the surface of the plate body, thereby increasing the effective heat exchange area of ​​the plate body and improving the heat exchange efficiency of the plate body.

[0035] (3) The second upper nozzle of the upper spray pipe and the lower nozzle of the lower spray pipe can spray mist on the gap between the plates from the upper and lower directions, which can evenly replenish the water evaporated from the plates and prevent the spray water at the bottom of the plates from drying up, thereby increasing the effective heat exchange area of ​​the plates and improving the heat exchange efficiency of the plates.

[0036] (4) The spraying directions of the second upper nozzle and the lower nozzle are opposite to each other, which can increase the turbulence in the gap between the plates and improve the heat exchange efficiency between water and air in the gap.

[0037] (5) The guide grooves on the plate body can further ensure the formation of a uniform water film on the plate body and play a certain buffering role on the water flow, thereby reducing the flow rate of the cooling water. The contact cooling time between the water and the plate body is longer, thereby improving the contact cooling heat exchange capacity and the heat exchange efficiency of the plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0039] Figure 1 It is a structural schematic diagram of the utility model;

[0040] Figure 2 It is a schematic diagram of the structure of the spray assembly;

[0041] Figure 3 is a cross-sectional view of the upper spray pipe;

[0042] Figure 4 is a cross-sectional view of the lower sprinkler pipe;

[0043] Figure 5 It is the position relationship diagram of the upper spray pipe and the heat exchange plate;

[0044] Figure 6 It is a structural schematic diagram of the heat exchange plate;

[0045] Figure 7 yes Figure 6 A local enlarged view of position A.

[0046] In the picture:

[0047] 1. Spraying component, 2. Heat exchange component, 3. Filling, 4. Water pool, 5. Feed inlet, 6. Discharge outlet

[0048] 11. Upper spray pipe, 12. Lower spray pipe

[0049] 21. Plate body, 22. Guide groove

[0050] 111. Upper tube, 112. First upper nozzle, 113. Guide plate, 114. Guide hole, 115. Second upper nozzle

[0051] 121. Lower pipe body, 122. Lower nozzle

[0052] 221. Groove wall, 222. Groove cavity, 223. Bottom hole. DETAILED DESCRIPTION

[0053] The utility model is further described in detail below with reference to the accompanying drawings.

[0054] The formaldehyde cooling device includes a heat exchange component 2, which includes a plurality of spaced plates 21, which are arranged in a vertical direction, and the gaps between the plates 21 are used for spraying cooling water and air circulation. The filler 3 is arranged at the lower end of the heat exchange component 2, and the spray water passes through the heat exchange component 2 and falls into the filler 3 at the bottom to evaporate and dissipate heat. The water pool 4 is arranged at the lower end of the filler 3, and the spray water evaporates and dissipates heat through the filler 3 and falls into the water pool 4, and the water in the water pool 4 can enter the spray component 1 again for recycling.

[0055] The feed port 5 is connected to the inlet of several plates 21, and the discharge port 6 is connected to the outlet of several plates 21. Gaseous formaldehyde enters the plate 21 from the feed port 5, and the gaseous formaldehyde is converted into liquid formaldehyde after heat dissipation by the plate 21, and the liquid formaldehyde flows out from the discharge port 6. The structure of the plate 21 is the same as the structure of the heat exchange plate in the plate heat exchanger in the prior art, so the structure of the plate 21 is not described in detail.

[0056] The spray assembly 1 is arranged on the upper and lower sides of the heat exchange assembly 2. The spray assembly 1 includes a plurality of upper spray pipes 11 and a plurality of lower spray pipes 12, and the upper spray pipes 11 and the lower spray pipes 12 are both arranged in the gap between adjacent plates 21. The upper spray pipe 11 is arranged at the upper end of the plate 21, and the spray direction of the upper spray pipe 11 is downward. The lower spray pipe 12 is arranged at the lower end of the plate 21, and the spray direction of the lower spray pipe 12 is upward. The relative spray directions of the upper spray pipe 11 and the lower spray pipe 12 can increase the turbulence in the gap between the plates 21 and increase the heat exchange efficiency of water and air in the gap.

[0057] The upper spray pipe 11 includes an upper tube body 111, and a plurality of first upper nozzles 112 are opened on the tube wall of the upper tube body 111, and the spraying direction is toward the adjacent plate body 21. A plurality of second upper nozzles 115 are opened on the tube wall of the upper tube body 111, and the spraying direction is toward the gap between the plate bodies 21. The guide plate 113 is protrudingly arranged on the outer periphery of the upper tube body 111, and the guide plate 113 is located at the lower side of the adjacent first upper nozzle 112. A gap is arranged between the outer edge of the guide plate 113 and the plate body 21. In a specific implementation, a guide hole 114 is arranged on the outer edge of the guide plate 113. The water sprayed from the first upper nozzle 112 can flow evenly to the surface of the plate body 21 from the gap between the guide plate 113 and the plate body 21 and the guide hole 114, and can directly form a uniform water film on the surface of the plate body 21, thereby increasing the effective heat exchange area of ​​the plate body 21 and improving the heat exchange efficiency of the plate body 21.

[0058] The lower spray pipe 12 includes a lower tube body 121, and a lower nozzle 122 is provided on the tube wall of the lower tube body 121, and the spraying direction is toward the gap between the plate bodies 21. The lower nozzle 122 and the second upper nozzle 115 are mist spray nozzles, and the lower nozzle 122 and the second upper nozzle 115 can spray mist on the gap between the plate bodies 21 from both upper and lower directions, and can evenly replenish the water evaporated from the plate bodies 21, prevent the spray water at the bottom of the plate bodies 21 from drying up, increase the effective heat exchange area of ​​the plate bodies 21, improve the heat exchange efficiency of the plate bodies 21, and increase the turbulence in the gap between the plate bodies 21, and increase the heat exchange efficiency of water and air in the gap.

[0059] The plate body 21 is provided with a plurality of transverse outwardly protruding guide grooves 22, which are made by bending sheet metal. The guide groove 22 includes a groove wall 221, which is inclined at a certain angle to the plate body 21, and a groove cavity 222 opening upward is formed between the groove wall 221 and the plate body 21, and a bottom hole 223 is provided at the lower end of the groove wall 221, and the bottom hole 223 is connected to the groove cavity 222. When the water on the plate body 21 flows through the guide groove 22 from top to bottom, it will be blocked and collected by the groove cavity 222, and then flow out from the bottom hole 223. It can further ensure that a uniform water film is formed on the plate body 21, and it has a certain buffering effect on the water flow, reducing the flow rate of the cooling water, and the contact cooling time between the water and the plate body 21 is longer, thereby improving the contact cooling heat exchange capacity and the heat exchange efficiency of the plate body 21.

[0060] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. Formaldehyde cooling device, characterized in that, include: A heat exchange component (2), the heat exchange component (2) comprising a plurality of plates (21) arranged at intervals; A filler (3) is arranged at the lower end of the heat exchange component (2); A water pool (4) is arranged at the lower end of the filler (3); A feed port (5) connected to the inlets of a plurality of the plates (21); A discharge port (6) connected to the outlets of a plurality of the plate bodies (21); The spray assembly (1) is arranged on the upper and lower sides of the heat exchange assembly (2).

2. The formaldehyde cooling device according to claim 1, characterized in that: The spray assembly (1) comprises: An upper spray pipe (11) is arranged at the upper end of the plate body (21), and the spraying direction of the upper spray pipe (11) is downward; The lower spray pipe (12) is arranged at the lower end of the plate body (21), and the spraying direction of the lower spray pipe (12) is upward.

3. The formaldehyde cooling device according to claim 2, characterized in that: The upper spray pipe (11) comprises: Upper tube body (111); The first upper nozzle (112) is formed on the tube wall of the upper tube body (111), and the spraying direction is toward the adjacent plate body (21).

4. The formaldehyde cooling device according to claim 3, characterized in that: The upper spray pipe (11) comprises: The second upper nozzle (115) is formed on the tube wall of the upper tube body (111), and the spraying direction is toward the gap between the plates (21).

5. The formaldehyde cooling device according to claim 3, characterized in that: The upper spray pipe (11) comprises: The guide plate (113) is arranged on the outer periphery of the upper tube body (111), and a gap is arranged between the outer edge of the guide plate (113) and the plate body (21).

6. The formaldehyde cooling device according to claim 5, characterized in that: The outer edge of the guide plate (113) is provided with a guide hole (114).

7. The formaldehyde cooling device according to claim 2, characterized in that: The lower spray pipe (12) comprises: Lower tube body (121); The lower nozzle (122) is formed on the tube wall of the lower tube body (121), and the spraying direction is toward the gap between the plate bodies (21).

8. The formaldehyde cooling device according to claim 1, characterized in that: The plate body (21) is provided with a transverse outwardly protruding flow guide groove (22).

9. The formaldehyde cooling device according to claim 8, characterized in that: The guide groove (22) comprises: A groove wall (221), wherein a groove cavity (222) opening upward is formed between the groove wall (221) and the plate body (21); The bottom hole (223) is formed at the lower end of the groove wall (221) and is communicated with the groove cavity (222).

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