Special row gun for cleaning shell pass of heat exchanger

Abstract

The utility model discloses a special row gun for heat exchanger shell pass cleaning, which relates to the field of heat exchanger cleaning and comprises an end head, one end of the end head is connected with a connector, water spraying steel pipes are symmetrically welded at the other end of the end head, square pipes are welded on the inner sides of the two groups of water spraying steel pipes, and one ends of the square pipes are fixedly connected with the end head. The water spraying steel pipes are symmetrically arranged at one end of the end head, meanwhile, the square pipes are arranged between the two groups of water spraying steel pipes, the stress of the water spraying steel pipes is improved under the action of the square pipes, the stability between the water spraying steel pipes is ensured when pipe bundles in the heat exchanger are cleaned, and the situation that the water spraying steel pipes incline is prevented; the cleaning efficiency of the tube bundle is improved, and meanwhile the overall workload is reduced.

Description

Technical Field

[0001] The utility model relates to the field of heat exchanger cleaning, in particular to a special discharge gun for cleaning the shell side of a heat exchanger. Background Art

[0002] A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, allowing the fluid temperature to reach the specified process temperature. A heat exchanger is usually composed of a shell, tube bundles, tube sheets, baffles, and tube boxes. The interior of the shell is composed of a series of tube bundles, which are called tube passes and are the core of the heat exchanger.

[0003] During the actual operation of the heat exchanger, a large amount of external air will pass through the outer wall of the tube bundle to exchange heat and cold. Since the air carries a certain amount of dust and impurities, a large amount of solid particles and impurities will accumulate on the tube bundle of the heat exchanger over time. If they are not cleaned in time, the overall heat exchange efficiency and service life will be affected over a long period of time.

[0004] The existing cleaning method is mostly for workers to use a handheld steel pipe spray gun to spray high-pressure water towards the outer wall of the tube bundle. In order to facilitate the cleaning of the internal tube bundle, the steel pipe spray gun itself is usually long and inserted into the internal tube bundle. At the same time, due to the small gap between the tube bundles, the overall outer diameter of the steel pipe spray gun is also very small. During the actual operation, the workers themselves will be subjected to the high pressure of the internal water flow, causing the steel pipe itself to tilt, making it difficult for workers to clean the internal tube bundle, reducing the overall cleaning efficiency and increasing the workload of the workers. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a special discharge gun for cleaning the shell side of the heat exchanger, so as to solve the technical problem that the steel pipe itself will tilt during the actual operation of the staff, making it inconvenient for the staff to clean the internal tube bundle.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a special discharge gun for cleaning the shell side of a heat exchanger, comprising an end head, one end of the end head is connected to a connector, and a water spray steel pipe is symmetrically welded at the other end thereof, two groups of the water spray steel pipes are welded with square tubes on the inner side, and one end of the square tube is fixedly connected to the end head.

[0007] By adopting the above technical solution, a square tube is arranged between the two groups of water spray steel pipes, and the stress of the water spray steel pipe itself is increased by the action of the square tube, so that the stability between the water spray steel pipes is ensured when cleaning the tube bundle inside the heat exchanger, and the water spray steel pipes are prevented from tilting. This speeds up the cleaning efficiency of the tube bundle and reduces the overall workload.

[0008] The utility model is further configured such that a water spraying steel pipe is provided at the middle position of the square tube, and a connecting hole is additionally provided at one end of the end.

[0009] By adopting the above technical solution, the staff can also add a water spraying steel pipe in the middle position of the square tube according to actual needs, thereby increasing the cleaning area of ​​the device on the outer wall of the tube bundle and further improving the overall cleaning efficiency.

[0010] The present invention is further configured such that the other end of the water spraying steel pipe is connected to a nozzle, and the inner diameter of the outlet at one end of the nozzle is smaller than the inner diameter of the water spraying steel pipe itself.

[0011] By adopting the above technical solution, since the inner diameter of the outlet at one end of the nozzle is smaller than the inner diameter of the water spraying steel pipe itself, the water spraying steel pipe ensures the water inlet while increasing the overall water outlet pressure through the action of the nozzle, thereby ensuring that the impurity particles on the outer wall of the tube bundle that are difficult to clean can be cleaned, thereby improving the overall cleaning effect.

[0012] The utility model is further configured such that a handle is connected to one side of the bottom of the square tube close to the end, and a rough surface is provided on the outer wall of the handle.

[0013] By adopting the above technical solution, the staff can operate the movement of the device more easily under the action of the handle, further reducing the staff's hand-holding burden. The setting of the rough surface facilitates increasing the sliding friction between the outer wall of the handle and the staff's hand, ensuring that the staff can clean the overall cleaning angle of the nozzle during the cleaning process.

[0014] The utility model is further configured such that the interior of the end head is hollow, the end head is symmetrically provided with connecting holes at the water spraying steel pipe, and a through hole cooperating with the connecting head is provided at the other side of the end head.

[0015] By adopting the above technical solution, the water source introduced by the high-pressure water pipe will enter the interior of the end head under the action of the connecting head. Since a connecting hole is provided at the other end of the end head, the high-pressure water source will be discharged into the interior of the water spraying steel pipe through the connecting hole.

[0016] The present invention is further configured such that the connector and the end head are detachably arranged and are connected via a bolt assembly.

[0017] By adopting the above technical solution and the bolt assembly connection method, the staff can regularly disassemble the connector to facilitate maintenance and cleaning of the end, thereby improving the overall practicality of the device.

[0018] The utility model is further configured such that the middle of the square tube is hollow, and a plurality of reinforcing ribs are staggeredly arranged inside the square tube.

[0019] By adopting the above technical solution, the square tube itself is convenient for workers to weld the water spray steel pipe to its outer wall. At the same time, the hollow setting effectively reduces the gravity of the square tube itself and reduces the overall hand-held burden of the workers.

[0020] The present invention is further configured such that the handle is located at the bottom of the square tube and is adjustable.

[0021] By adopting the above technical solution, the staff can adjust the position of the handle according to actual needs, so as to adapt to different cleaning habits during cleaning, thereby improving the overall practicality of the device.

[0022] In summary, the present invention has the following beneficial effects:

[0023] The utility model symmetrically arranges water spray steel pipes at one end of the end head, and arranges square pipes between the two groups of water spray steel pipes. The square pipes increase the stress of the water spray steel pipes themselves, ensure the stability between the water spray steel pipes when cleaning the tube bundle inside the heat exchanger, prevent the water spray steel pipes from tilting, speed up the cleaning efficiency of the tube bundle, and reduce the overall workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a top perspective view of the present utility model;

[0025] Figure 2 This is a bottom-up perspective view of the present invention;

[0026] Figure 3 For this utility model Figure 1 A magnified view of middle A;

[0027] Figure 4 This is a schematic diagram of the terminal structure of the utility model;

[0028] Figure 5 This is a schematic structural diagram of the second embodiment of the present utility model;

[0029] Figure 6 This is a schematic diagram of the terminal structure of the second embodiment of the present utility model.

[0030] In the figure: 1. End cap; 2. Square tube; 3. Water spraying steel pipe; 4. Nozzle; 5. Handle; 6. Connector. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] The following describes an embodiment of the present invention based on its overall structure.

[0033] Example 1

[0034] A special discharge gun for cleaning the shell side of heat exchanger, such as Figures 1-4 As shown, it includes an end head, a connector, a cleaning mechanism and a supporting mechanism. A connector 6 is connected to one end of the end head 1, and the connector 6 itself is connected to a high-pressure water pipe outside, and two groups of water spraying steel pipes 3 are symmetrically welded at the other end. At this time, the high-pressure water source enters the interior of the end head 1 through the connector 6. Since a connecting hole is provided at the other end of the end head 1, the high-pressure water source will be discharged to the interior of the water spraying steel pipe 3 through the connecting hole. Since a nozzle 4 is connected to the other end of the water spraying steel pipe 3, and the inner diameter of the outlet at one end of the nozzle 4 is smaller than the inner diameter of the water spraying steel pipe 3 itself, the water spraying steel pipe 3 ensures the water inlet while increasing the overall water outlet pressure under the action of the nozzle 4 to ensure that the outside of the tube bundle can be cleaned. The impurity particles on the wall that are difficult to clean are cleaned to improve the overall cleaning effect. At the same time, square tubes 2 are welded on the inner sides of the two groups of water spray steel pipes 3, and one end of the square tube 2 is fixedly connected to the end head 1. The stress of the water spray steel pipe 3 itself is increased by the action of the square tube 2. At the same time, a handle 5 is connected to the side of the bottom of the square tube 2 close to the end head 1. The handle 5 makes it easier for the staff to operate the movement of the device, further reducing the hand-held burden of the staff. When the staff cleans the tube bundle inside the heat exchanger through the handle 5, the stability between the water spray steel pipes 3 is ensured to prevent them from tilting, thereby speeding up the cleaning efficiency of the tube bundle and reducing the overall workload.

[0035] See also Figure 2 A rough surface is provided on the outer wall of the handle 5. The setting of the rough surface is convenient for increasing the sliding friction between the outer wall of the handle 5 and the hand of the staff, ensuring that the staff can clean the entire angle of the nozzle 4 during the cleaning process. At the same time, the handle 5 is located at the bottom of the square tube 2 and is adjustable. The staff can adjust the position of the handle 5 according to actual needs, which is convenient for adapting to different cleaning habits during cleaning, thereby improving the overall practicality of the device.

[0036] See also Figure 1The middle of the square tube 2 is hollow, and the square tube 2 itself is convenient for the staff to weld the water spray steel pipe 3 to its outer wall. At the same time, the hollow setting effectively reduces the gravity of the square tube 2 itself, reducing the overall hand-held burden of the staff, and an array of reinforcing ribs are staggered inside the square tube 2. The setting of the reinforcing ribs is convenient for increasing the stress of the square tube 2 itself, further preventing the square tube 2 itself from tilting.

[0037] Example 2

[0038] like Figure 5 and Figure 6 The special row gun shown is used for cleaning the shell side of the heat exchanger. The overall structure is similar to that of the first embodiment, wherein different numbers of water spray steel pipes 3 are set according to the density between the tube bundles. When cleaning close to the tube bundle, the staff also sets a water spray steel pipe 3 at the middle position of the square tube 2. According to actual needs, the staff can also add water spray steel pipes 3 at different positions of the square tube 2, thereby increasing the cleaning area of ​​the outer wall of the tube bundle by the device. When close to the tube bundle, the cleaning area of ​​the nozzle 4 itself is small, and the staff can clean the outer wall of the tube bundle through multiple groups of water spray steel pipes 3. In this process, the cleaning time of a single group of tube bundles is greatly shortened, thereby effectively improving the overall cleaning efficiency.

[0039] The working principle of the utility model is as follows: when in use, the connector 6 at one end of the end is connected to the high-pressure water pipe, and the high-pressure water flows into the water spraying steel pipes 3 on both sides through the end 1, and then is sprayed toward the outer wall of the tube bundle through the nozzle 4 at one end, thereby completing the cleaning work of the outer wall of the tube bundle. At the same time, a square tube 2 is welded between the two groups of water spraying steel pipes 3. The stress of the water spraying steel pipe 3 itself is increased under the action of the square tube 2, thereby preventing the water spraying steel pipe 3 itself from tilting. During this process, the staff can easily hold the mechanism to quickly clean the internal tube bundle, thereby improving the overall cleaning effect.

[0040] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A special discharge gun for cleaning the shell side of a heat exchanger, comprising an end head (1), characterized in that: One end of the end head (1) is connected to a connector (6), and a water spray steel pipe (3) is symmetrically welded to the other end thereof. Square tubes (2) are welded to the inner sides of the two groups of water spray steel pipes (3), and one end of the square tube (2) is fixedly connected to the end head (1).

2. The special discharge gun for cleaning the shell side of a heat exchanger according to claim 1, characterized in that: A water spraying steel pipe (3) is also provided at the middle position of the square tube (2), and a connecting hole is additionally provided at one end of the end head (1).

3. The special discharge gun for cleaning the shell side of a heat exchanger according to claim 1, characterized in that: The other end of the water spraying steel pipe (3) is connected to a nozzle (4), and the inner diameter of the outlet at one end of the nozzle (4) is smaller than the inner diameter of the water spraying steel pipe (3) itself.

4. The special discharge gun for cleaning the shell side of a heat exchanger according to claim 1, characterized in that: A handle (5) is connected to one side of the bottom of the square tube (2) close to the end head (1), and a rough surface is provided on the outer wall of the handle (5).

5. The special discharge gun for cleaning the shell side of a heat exchanger according to claim 4, characterized in that: The interior of the end head (1) is hollow, and connection holes are symmetrically arranged on the end head (1) at the water spraying steel pipe (3), and a through hole cooperating with the connector (6) is arranged on the other side of the end head (1).

6. The special discharge gun for cleaning the shell side of a heat exchanger according to claim 1, characterized in that: The connecting head (6) and the end head (1) are detachably arranged, and are connected between the two via a bolt assembly.

7. The special discharge gun for cleaning the shell side of a heat exchanger according to claim 1, characterized in that: The middle of the square tube (2) is hollow, and a plurality of reinforcing ribs are staggeredly arranged inside the square tube (2).

8. The special discharge gun for cleaning the shell side of a heat exchanger according to claim 4, characterized in that: The handle (5) is located at the bottom of the square tube (2) and is adjustable.

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