Sacrificial anode monitoring device and heat exchange equipment taking seawater as cooling medium

Abstract

The invention discloses a sacrificial anode monitoring device and heat exchange equipment taking seawater as a cooling medium, and relates to the field of anode protection and corrosion prevention. The problem that whether an existing sacrificial anode needs to be replaced or not cannot be directly judged is solved. The anode comprises the anode body and the cover nut which are detachably connected, heat exchange equipment is protected against corrosion through continuous consumption, a sealed mounting cavity is formed between the anode body and the cover nut and located at the connecting position of the anode body and the cover nut, and when the anode body is used up, the mounting cavity is provided with an opening at the moment, and the opening is closed. Seawater enters the mounting cavity and is in contact with the detection piece to form conduction of a circuit, and the detection piece is fixedly arranged in the mounting cavity. When the anode body is continuously consumed until the mounting cavity is exposed out of the opening, seawater enters the mounting cavity and is in contact with the detection piece, and after the detection piece is in contact with water, a circuit can be conducted to cause an alarm of an external monitoring processor, so that a user is reminded to replace the anode body in time, and safe operation of the heat exchange equipment is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of anode protection and anti-corrosion, and in particular to a sacrificial anode monitoring device and a heat exchange device using seawater as a cooling medium. Background Art

[0002] Electrochemical protection is a method of reducing the electrochemical corrosion rate of the protected metal by polarizing it. The sacrificial anode method is to connect a metal with a more negative potential (i.e. more active) as an anode to the protected metal. It forms a special galvanic corrosion electrolytic cell with the protected metal in the electrolyte. The current flows from the anode through the electrolyte into the protected metal, causing it to be cathodically polarized and protected.

[0003] Since sacrificial anodes protect themselves through self-consumption, they have a lifespan, and their lifespan changes periodically due to changes in actual operating conditions. If the inspection and replacement cycle is long and the sacrificial anodes have been exhausted, the heat exchange equipment will be prone to corrosion and leakage risks. A short inspection and replacement cycle will lead to frequent shutdown of the heat exchange equipment and waste of manpower.

[0004] In summary, the existing sacrificial anode has the problem of not being able to directly determine whether it needs to be replaced. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that it is not possible to directly determine whether the existing sacrificial anode needs to be replaced, and further provide a sacrificial anode monitoring device and a heat exchange device using seawater as a cooling medium.

[0006] The technical solution of the present invention is: a sacrificial anode monitoring device, comprising: an anode body and a cover nut which are detachably connected, a sealed installation cavity being provided between the anode body and the cover nut;

[0007] A detection component is fixed in the installation cavity, and the detection component is electrically connected to an external current collector and a monitoring processor through a terminal. The consumption of the anode body allows seawater to enter the installation cavity and contact the detection component, thereby generating an alarm.

[0008] Furthermore, the anode body has a detection groove extending along the length direction and communicating with the installation cavity.

[0009] Furthermore, the detection slot is located at the center of the anode body.

[0010] Furthermore, the anode body and the cover nut are threadedly connected.

[0011] Furthermore, one side of the anode body has an annular groove, the side wall of the annular groove has a first thread, the cover nut is provided with a cover nut ring extending toward the anode body, and the side wall of the cover nut ring has a second thread for matching with the first thread.

[0012] Furthermore, it also includes: a first gasket, which is sandwiched between the cover nut ring and the anode body.

[0013] Furthermore, the detection elements are multiple and evenly distributed.

[0014] Furthermore, it also includes: a second gasket, which is clamped between the heat exchange device interface and the cover nut.

[0015] Furthermore, the cover nut has an observation channel penetrating on both sides and communicating with the installation cavity, and the cover nut is detachably connected to a plug covering the opening of the observation channel, and a third gasket is sandwiched between the plug and the cover nut.

[0016] A heat exchange device using seawater as a cooling medium comprises: a sacrificial anode monitoring device as described in any one of the above schemes, wherein a cover nut of the sacrificial anode monitoring device is detachably mounted on a side of the heat exchange device for contact with seawater.

[0017] Compared with the prior art, the present invention has the following effects:

[0018] 1. In the sacrificial anode monitoring device provided by the present invention, when the anode body is continuously consumed until the installation cavity leaks out of the opening, seawater will enter the installation cavity through the installation cavity and contact the detection component. After the detection component contacts the water, the circuit can be turned on, causing an alarm from the external monitoring processor, reminding the user to replace the anode body in time to ensure the safe operation of the heat exchange equipment.

[0019] 2. The sacrificial anode monitoring device provided by the present invention can trigger a detection alarm in advance before the anode body is completely consumed, leaving time for front-line personnel to replace it.

[0020] 3. The sacrificial anode monitoring device provided by the present invention has a detection slot that can be removed from the cover nut through the tail of the anode body by front-line personnel before the anode body is consumed. Only the anode body needs to be replaced, thereby avoiding the anode remaining on the second thread of the cover nut ring and affecting the installation of the new anode body. The new anode body can be smoothly connected to the cover nut, and the cover nut does not need to be replaced, thereby reducing the replacement cost.

[0021] 4. In the sacrificial anode monitoring device provided by the present invention, the first gasket can improve the sealing between the annular groove and the cover nut ring, prevent seawater from entering the installation cavity through the gap between the two, and ensure that the detection component will not falsely alarm.

[0022] 5. The sacrificial anode monitoring device provided by the present invention can remove the plug and confirm the status of the installation cavity through the observation channel. Whether water has entered the installation cavity or whether the detection component has a false alarm can be known in time without disassembling the monitoring device, thereby reducing the number of shutdowns of the heat exchange equipment and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the sacrificial anode monitoring device of the present invention;

[0024] Figure 2 yes Figure 1 Magnified view of area A.

[0025] In the figure: 1. anode body; 2. cover nut; 3. installation cavity; 4. detection part; 5. terminal; 6. detection groove; 7. annular groove; 8. cover nut ring; 9. first gasket; 10. observation channel; 11. plug; 12. second gasket; 13. third gasket. DETAILED DESCRIPTION

[0026] Specific implementation method 1: Combination Figure 1 , Figure 2 The present embodiment is described. The present embodiment comprises a detachably connected anode body 1 and a cover nut 2. The anode body 1 is a sacrificial anode. Its continuous consumption protects the heat exchange equipment from corrosion. A sealed installation cavity 3 is provided between the anode body 1 and the cover nut 2. The installation cavity 3 is located at the position where the anode body 1 and the cover nut 2 are connected. When the anode body 1 is exhausted, the installation cavity 3 has an opening. Seawater will enter the installation cavity 3 and contact with the detection component 4 to form a circuit conduction. The detection component 4 is fixed in the installation cavity 3. In the present embodiment, the detection component 4 can be a sensor connector, which is installed on the cover nut 2. The detection component 4 is electrically connected to the external current collector and the monitoring processor through the terminal block 5. When the circuit is conducted, the detection component 4 will transmit the electrical signal to the monitoring processor, thereby generating an alarm.

[0027] In the sacrificial anode monitoring device of this embodiment, when the anode body 1 is continuously consumed until the installation cavity 3 leaks out of the opening, seawater will enter the installation cavity 3 and contact the detection component 4. After the detection component 4 contacts the water, the circuit can be turned on, causing an alarm from the external monitoring processor, reminding the user to replace the anode body 1 in time to ensure the safe operation of the heat exchange equipment.

[0028] Specific implementation method 2: Combination Figure 1 , Figure 2To explain this embodiment, the anode body 1 of this embodiment has a detection groove 6 extending along the length direction and connected to the installation cavity 3. The detection groove 6 is in the shape of a long strip. The detection groove 6 extends from a side of the anode body 1 close to the cover nut 2 to a side away from the cover nut 2. The length of the detection groove 6 is greater than the length of the part of the anode body 1 connected to the cover nut 2. When the anode body 1 is consumed to the detection groove 6, seawater can enter the installation cavity 3 through the detection groove 6, thereby triggering an alarm in advance. At this time, there is still anode body 1 left, and the front-line personnel can directly remove the remaining anode body 1 and then replace it. The part where the anode body 1 and the cover nut 2 are connected is not in contact with the seawater, and there will be no residue. Therefore, only the anode body 1 needs to be replaced, and the cover nut 2 does not need to be replaced, and the replacement cost is lower. Of course, the above description is not restrictive. As a replaceable embodiment, the detection groove 6 can also be omitted, and an early alarm is performed by reducing the width of the installation cavity 3 and increasing the length. Other components and connection relationships are the same as those of the specific embodiment one.

[0029] Specific implementation method three: Combination Figure 1 , Figure 2 To explain this embodiment, the detection slot 6 of this embodiment is located at the center of the anode body 1, and the number of the detection slot 6 is one. After passing through the detection slot 6, the seawater enters from the middle position of the installation cavity 3, and then contacts the detection member 4. The entry position is centered so that the seawater is distributed more evenly, thereby avoiding false alarms. Of course, the above description is not restrictive. As an alternative embodiment, the number of detection slots 6 can also be set to multiple, and the multiple detection slots 6 are distributed along the circumferential direction. Other components and connection relationships are the same as those of the second specific embodiment.

[0030] Specific implementation method four: Combination Figure 1 , Figure 2 This embodiment is described. The anode body 1 and the cover nut 2 of this embodiment are threadedly connected. The threaded connection method does not require the use of other components. The connection can be achieved only by threaded matching. The structure is simpler and the use effect is better. Of course, the above description is not restrictive. As an alternative embodiment, the anode body 1 and the cover nut 2 can also be connected by bolts. Other components and connection relationships are the same as those of the specific embodiment 1.

[0031] Specific implementation method five: Combination Figure 1 , Figure 2To explain this embodiment, the anode body 1 of this embodiment has an annular groove 7 on one side, the side wall of the annular groove 7 has a first thread, the cover nut 2 is provided with a cover nut ring 8 extending toward the anode body 1, and the side wall of the cover nut ring 8 has a second thread for matching with the first thread, and the connection between the anode body 1 and the cover nut 2 can be achieved through the matching of the first thread and the second thread. Of course, the above description is not restrictive, and as an alternative embodiment, the cover nut ring 8 can also be provided on the anode body 1, and the annular groove 7 can be provided on the cover nut 2. Other components and connection relationships are the same as those of the specific embodiment four.

[0032] Specific implementation method six: Combination Figure 1 To illustrate this embodiment, this embodiment also includes: a first gasket 9, which is clamped between the cover nut ring 8 and the anode body 1. The first gasket 9 can be a rubber gasket. The first gasket 9 can improve the sealing between the annular groove 7 and the cover nut ring 8, prevent seawater from entering the installation cavity 3 from the gap between the two, and ensure that the detection component 4 will not falsely alarm. Of course, the above description is not restrictive. As an alternative embodiment, the first gasket 9 can also be omitted, and a sealing material, such as glass glue, can be filled in the gap between the cover nut ring 8 and the annular groove 7. Other components and connection relationships are the same as those in the fifth specific embodiment.

[0033] Specific implementation method seven: Combination Figure 1 , Figure 2 To explain this embodiment, the detection components 4 of this embodiment are evenly distributed, and the number of detection components 4 is large. When one of the detection components 4 fails, the alarm can still be normally performed, which can effectively avoid the situation of missed alarms and false alarms caused by damage to individual detection components 4. Of course, the above description is not restrictive. As an alternative embodiment, when the detection component 4 does not fail, only one detection component 4 can be set. Other components and connection relationships are the same as those of the specific embodiment 1.

[0034] Specific implementation method eight: Combination Figure 1 , Figure 2 To explain this embodiment, this embodiment also includes: a second gasket 12, which is sandwiched between the heat exchange device interface and the cover nut 2 to prevent the medium in the device from leaking to the outside of the device. Of course, the above description is not restrictive. As an alternative embodiment, the second gasket 12 can also be omitted, and a sealing material, such as glass glue, can be filled in the gap between the heat exchange device interface and the cover nut 2. Other components and connection relationships are the same as any one of the specific embodiments one to seven.

[0035] Specific implementation method nine: Combination Figure 1 , Figure 2To explain this embodiment, the cover nut 2 of this embodiment has an observation channel 10 that penetrates on both sides and is connected to the installation cavity 3. The observation channel 10 is hollow, and a plug 11 that covers the opening of the observation channel 10 is detachably connected to the cover nut 2. A third gasket 13 is sandwiched between the plug 11 and the cover nut 2. The third gasket 13 can prevent the medium that has leaked into the installation cavity 3 from leaking to the outside of the equipment through the thread between the plug 11 and the cover nut 2, and can also effectively prevent the medium outside the plug from entering the installation cavity 3 and triggering the detection part 4 to cause a false alarm. Remove the plug 11, and the state of the installation cavity 3 can be confirmed through the observation channel 10. Whether the installation cavity 3 has water inflow, whether the detection part 4 has a false alarm, etc. can be understood in time, without the need to disassemble the monitoring device as a whole, reducing the number of shutdowns of the heat exchange equipment, and making it more convenient to use. Of course, the above description is not restrictive. As an alternative embodiment, a camera can also be set in the installation cavity 3 to observe the internal situation through the camera. The other components and connection relationships are the same as any one of the specific embodiments one to seven.

[0036] Specific implementation method ten: Combination Figure 1 , Figure 2 This embodiment is described. This embodiment also includes a heat exchange device using seawater as a cooling medium, including: the sacrificial anode monitoring device described above, the cover nut 2 of the sacrificial anode monitoring device being detachably mounted on the side of the heat exchange device for contact with seawater. The other components and connection relationships are the same as any one of the specific embodiments 1 to 9.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sacrificial anode monitoring device, comprising: An anode body (1) and a cover nut (2) that are detachably connected, with a sealed installation cavity (3) being provided between the anode body (1) and the cover nut (2); The invention is characterized in that a detection component (4) is fixedly provided in the installation cavity (3), and the detection component (4) is electrically connected to an external current collector and a monitoring processor via a wiring terminal (5), and the consumption of the anode body (1) allows seawater to enter the installation cavity (3) and contact the detection component (4), thereby generating an alarm.

2. A sacrificial anode monitoring device according to claim 1, characterized in that: The anode body (1) has a detection groove (6) extending in the length direction and communicating with the installation cavity (3).

3. A sacrificial anode monitoring device according to claim 2, characterized in that: The detection slot (6) is located at the center of the anode body (1).

4. The sacrificial anode monitoring device according to claim 1, characterized in that: The anode body (1) and the cover nut (2) are threadedly connected.

5. The sacrificial anode monitoring device according to claim 4, characterized in that: One side of the anode body (1) has an annular groove (7), the side wall of the annular groove (7) has a first thread, the cover nut (2) is provided with a cover nut ring (8) extending toward the anode body (1), and the side wall of the cover nut ring (8) has a second thread for matching with the first thread.

6. A sacrificial anode monitoring device according to claim 5, characterized in that: Also includes: The first gasket (9) is sandwiched between the cover nut ring (8) and the anode body (1).

7. The sacrificial anode monitoring device according to claim 1, characterized in that: The detection elements (4) are provided in a plurality of evenly distributed portions.

8. A sacrificial anode monitoring device according to any one of claims 1 to 7, characterized in that: Also includes: The second gasket (12) is sandwiched between the heat exchange device interface and the cover nut (2).

9. A sacrificial anode monitoring device according to any one of claims 1 to 7, characterized in that: The cover nut (2) has an observation channel (10) penetrating on both sides and communicating with the installation cavity (3); a plug (11) is detachably connected to the cover nut (2) and covers the opening of the observation channel (10); a third gasket (13) is sandwiched between the plug (11) and the cover nut (2).

10. A heat exchange device using seawater as a cooling medium, characterized in that: include: The sacrificial anode monitoring device according to any one of claims 1 to 9, wherein the cover nut (2) of the sacrificial anode monitoring device is detachably mounted on a side of the heat exchange device for contact with seawater.

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