Electrode type boiler water level control device

Abstract

The utility model relates to the technical field of industrial boiler water level detection, in particular to an electrode type boiler water level control device which comprises a barrel, a plurality of positioning sleeves distributed at equal intervals are arranged on the right side of the barrel, and water level electrodes are inserted into the inner sides of the positioning sleeves. A fixing block and a positioning block are fixedly connected to the positions, located above and below the outer surface of the right end of the barrel, of the positioning sleeve correspondingly, positioning clamping grooves are formed in the front side and the rear side of the positioning block correspondingly, and an adjusting shaft is fixedly connected to the inner surface of the fixing block. Through cooperation of the structures, the device has the advantage of being convenient to overhaul and maintain, and solves the problems that the water level electrode of an existing electrode type boiler water level control device is in threaded connection with the monitoring cylinder through an external thread connecting block, and the water level electrode makes contact with a water body of an electrode type boiler for a long time; and a threaded connection part is easily corroded, so that the water level electrode is very inconvenient to disassemble, assemble and maintain in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial boiler water level detection, in particular to an electrode type boiler water level control device. Background Technique

[0002] The boiler water level control device is an important part of the boiler, and plays a very important role in the abnormal situation of the safe operation of the boiler. When the change of the water level exceeds the given range, it has the functions of alarm and interlock protection.

[0003] At present, the water level control of the electrode type boiler is realized through an electrode type water level regulator. This regulator uses the combination of a bridge rectifier and a relay to automatically control the start and stop of the water pump, so as to adjust the water level in the boiler. The operation of the electrode type water level regulator needs to cooperate with the use of a water level electrode. The two work together to ensure the accuracy of water level control and the safety of the system. However, the water level electrodes of the existing electrode type boiler water level control devices are mostly connected to the monitoring cylinder by external thread connection blocks. Since the water level electrodes are in contact with the water body of the electrode type boiler for a long time, it is easy to cause corrosion to the thread connection part, resulting in very inconvenient disassembly, installation and maintenance of the water level electrodes in the later stage. For this reason, we propose an electrode type boiler water level control device. Content of the Utility Model

[0004] The purpose of the utility model is to provide an electrode type boiler water level control device, which has the advantage of convenient maintenance and repair, and solves the problem that the water level electrodes of the existing electrode type boiler water level control devices are mostly connected to the monitoring cylinder by external thread connection blocks. Since the water level electrodes are in contact with the water body of the electrode type boiler for a long time, it is easy to cause corrosion to the thread connection part, resulting in very inconvenient disassembly, installation and maintenance of the water level electrodes in the later stage.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An electrode type boiler water level control device, including a cylinder body, a plurality of equally spaced positioning sleeves are arranged on the right side of the cylinder body, a water level electrode is inserted into the inner side of the positioning sleeve, a fixing block and a positioning block are respectively fixedly connected above and below the outer surface of the right end of the cylinder body of the positioning sleeve, positioning slots are opened on both the front and rear sides of the positioning block, a regulating shaft is fixedly connected to the inner surface of the fixing block, both the front and rear ends of the outer surface of the regulating shaft are movably connected with regulating arms, an arc-shaped pressing block in contact with the right side of the water level electrode is fixedly connected to the upper end of the regulating arm close to the cylinder body side, a connecting block is fixedly connected to the lower end of the regulating arm close to the cylinder body side, a positioning block adapted to the positioning slot is movably connected to the inner surface of the connecting block close to one end of the cylinder body, a U-shaped frame corresponding to the positioning slot is fixedly connected to the side of the connecting block away from the positioning block, a spring is fixedly connected between the U-shaped frame and the positioning block, and a pull rod sliding on the inner surface of the U-shaped frame is fixedly connected to the middle end of the side of the positioning block away from the positioning block.

[0006] Preferably, the positioning slot has a right triangle cross section.

[0007] Preferably, the adjusting arm is an L-shaped structure, and a toggle block is fixedly connected to the bottom of the adjusting arm.

[0008] Preferably, the connecting block is a rectangular plate-shaped structure, and a through groove adapted to the positioning block is provided on the inner surface of the connecting block close to one end of the cylinder.

[0009] Preferably, the cross section of the positioning block is a right-angled trapezoid.

[0010] Preferably, the pull rod is located on the inner side of the spring, and a pull block is fixedly connected to a side of the pull rod away from the positioning block.

[0011] Preferably, a second sealing ring is provided on the left side of the inner cavity of the positioning sleeve, and a first sealing ring is provided on the inner wall of the positioning sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model provides a positioning sleeve. After the water level electrode to be used is inserted into the inner side thereof, the toggle block drives the adjusting arm to flip downward with the adjusting axis on the inner surface of the fixed block as the center. When the connecting block is close to the positioning block, the positioning block can contact the positioning block, and then the positioning block can compress the spring in the U-shaped frame. At the same time, the arc-shaped pressing block can contact the right side of the water level electrode inserted in the positioning sleeve. After the spring drives the positioning block to be inserted into the positioning slot, the water level electrode can be pressed and confined in the positioning sleeve, thereby realizing the rapid installation of the water level electrode. Conversely, when maintenance or replacement is required, with the assistance of the U-shaped frame, the positioning block is driven to exit the positioning slot through the pulling block and the pulling rod, and the spring is compressed. Then, the toggle block drives the adjusting arm to flip upward with the adjusting axis on the inner surface of the fixed block as the center, so that the arc-shaped pressing block gives up the contact with the water level electrode. Then, the corresponding water level electrode can be taken out of the positioning sleeve.

[0014] 2. The utility model, through the provision of the first sealing ring and the second sealing ring, can ensure the sealing between the cylinder and the water level electrode when the corresponding water level electrode is inserted into the corresponding positioning sleeve, and the second sealing ring can play a buffering role when the arc-shaped pressure block abuts against the water level electrode, and the sealing of the second sealing ring after extrusion can be further enhanced, thereby ensuring the normal operation of the water level electrode and the stability of its performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from a second viewing angle;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning sleeve and the water level electrode of the utility model;

[0018] Figure 4 It is a schematic diagram of the matching structure of the positioning card block and the positioning card slot of the utility model.

[0019] In the figure: 1. cylinder; 2. adjusting arm; 3. positioning block; 4. fixing block; 5. adjusting shaft; 6. positioning sleeve; 7. water level electrode; 8. connecting block; 9. first sealing ring; 10. second sealing ring; 11. pulling block; 12. U-shaped frame; 13. toggle block; 14. pulling rod; 15. spring; 16. positioning block; 17. positioning slot; 18. arc-shaped pressing block. DETAILED DESCRIPTION

[0020] 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.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The cylinder 1, adjusting arm 2, positioning block 3, fixing block 4, adjusting shaft 5, positioning sleeve 6, water level electrode 7, connecting block 8, first sealing ring 9, second sealing ring 10, pull block 11, U-shaped frame 12, toggle block 13, pull rod 14, spring 15, positioning block 16, positioning slot 17 and arc-shaped pressure block 18 of the present application are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0024] Embodiment 1

[0025] See also Figures 1-4 As shown, the utility model provides a technical solution: an electrode-type boiler water level control device, comprising a cylinder 1, a plurality of equally spaced positioning sleeves 6 are arranged on the right side of the cylinder 1, a water level electrode 7 is inserted into the inner side of the positioning sleeve 6, the positioning sleeve 6 is located above and below the outer surface of the right end of the cylinder 1, and is respectively fixedly connected with a fixing block 4 and a positioning block 3, the front and rear sides of the positioning block 3 are provided with positioning card grooves 17, the cross-section of the positioning card groove 17 is a right-angled triangle, the inner surface of the fixing block 4 is fixedly connected with an adjusting shaft 5, the front and rear ends of the outer surface of the adjusting shaft 5 are movably connected with an adjusting arm 2, the adjusting arm 2 is an L-shaped structure, the bottom of the adjusting arm 2 is fixedly connected with a toggle block 13, the upper end of the adjusting arm 2 close to the cylinder 1 is fixedly connected with an arc-shaped pressing block 18 in contact with the right side of the water level electrode 7, and the adjusting arm 2 is fixedly connected to the bottom of the adjusting arm 2. The lower end of the joint arm 2 close to the cylinder body 1 is fixedly connected with a connecting block 8, the connecting block 8 is a rectangular plate structure, and the inner surface of the connecting block 8 close to the cylinder body 1 is provided with a through groove adapted to the positioning block 16, the inner surface of the connecting block 8 close to the cylinder body 1 is movably connected with a positioning block 16 adapted to the positioning slot 17, the cross-section of the positioning block 16 is a right-angled trapezoid, the side of the connecting block 8 away from the positioning block 3 is fixedly connected with a U-shaped frame 12 corresponding to the positioning slot 17, a spring 15 is fixedly connected between the U-shaped frame 12 and the positioning block 16, the middle end of the positioning block 16 away from the positioning block 3 is fixedly connected with a pull rod 14 sliding on the inner surface of the U-shaped frame 12, the pull rod 14 is located on the inner side of the spring 15, and the side of the pull rod 14 away from the positioning block 16 is fixedly connected with a pull block 11.

[0026] This technical solution: through the setting of the positioning sleeve 6, after the water level electrode 7 to be used is inserted into its inner side, the adjusting arm 2 is driven by the toggle block 13 to flip downward with the adjusting shaft 5 on the inner surface of the fixing block 4 as the center. When the connecting block 8 is close to the positioning block 3, the positioning block 16 can contact the positioning block 3, and then the positioning block 16 can compress the spring 15 in the U-shaped frame 12. At the same time, the arc-shaped pressing block 18 can contact the right side of the water level electrode 7 inserted into the positioning sleeve 6. After the spring 15 drives the positioning block 16 to be stuck in the positioning slot 17, The water level electrode 7 can be compressed and confined in the positioning sleeve 6, so that the water level electrode 7 can be quickly installed. Conversely, when inspection, maintenance or replacement is required, with the assistance of the U-shaped frame 12, the positioning block 16 is driven to withdraw from the positioning slot 17 through the pull block 11 and the pull rod 14, and the spring 15 is compressed. Then, the adjusting arm 2 is driven by the toggle block 13 to flip upward with the adjusting axis 5 on the inner surface of the fixed block 4 as the center, so that the arc-shaped pressing block 18 gives up the contact with the water level electrode 7. Then, the corresponding water level electrode 7 can be taken out of the positioning sleeve 6.

[0027] Embodiment 2

[0028] On the basis of embodiment 1, the utility model is as follows Figures 2-3 As shown, it is disclosed that a second sealing ring 10 is arranged on the left side of the inner cavity of the positioning sleeve 6 , and a first sealing ring 9 is arranged on the inner wall of the positioning sleeve 6 .

[0029] The technical solution of the present invention is that by arranging the first sealing ring 9 and the second sealing ring 10, the sealing between the cylinder body 1 and the water level electrode 7 can be ensured when the corresponding water level electrode 7 is inserted into the corresponding positioning sleeve 6, and the second sealing ring 10 can play a buffering role when the arc-shaped pressing block 18 abuts against the water level electrode 7, and the sealing of the second sealing ring 10 after extrusion can be further enhanced, thereby ensuring the normal operation of the water level electrode 7 and the stability of its performance.

[0030] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (for example, changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0031] In addition, to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. An electrode type boiler water level control device, comprising a cylinder (1), characterized in that: A plurality of equally spaced positioning sleeves (6) are provided on the right side of the cylinder (1), a water level electrode (7) is inserted into the inner side of the positioning sleeve (6), the positioning sleeve (6) is located above and below the outer surface of the right end of the cylinder (1), and is respectively fixedly connected to a fixing block (4) and a positioning block (3), the front and rear sides of the positioning block (3) are provided with positioning slots (17), the inner surface of the fixing block (4) is fixedly connected to an adjusting shaft (5), the front and rear ends of the outer surface of the adjusting shaft (5) are movably connected to an adjusting arm (2), the upper end of the adjusting arm (2) close to the cylinder (1) is fixedly connected to an arc contacting the right side of the water level electrode (7), and the adjusting arm (2) is fixedly connected to the upper end of the adjusting arm (2) on the side close to the cylinder (1) and is fixedly connected to an arc contacting the right side of the water level electrode (7). The adjusting arm (2) is provided with a connecting block (8) fixedly connected to the lower end of the adjusting arm (2) on the side close to the cylinder (1); the inner surface of the connecting block (8) on the side close to the cylinder (1) is movably connected to a positioning block (16) matched with the positioning slot (17); the side of the connecting block (8) away from the positioning block (3) is fixedly connected to a U-shaped frame (12) corresponding to the positioning slot (17); a spring (15) is fixedly connected between the U-shaped frame (12) and the positioning block (16); and the middle end of the positioning block (16) on the side away from the positioning block (3) is fixedly connected to a pull rod (14) sliding on the inner surface of the U-shaped frame (12).

2. The electrode type boiler water level control device according to claim 1, characterized in that: The positioning slot (17) has a right triangle cross section.

3. The electrode type boiler water level control device according to claim 1, characterized in that: The adjusting arm (2) is an L-shaped structure, and a toggle block (13) is fixedly connected to the bottom of the adjusting arm (2).

4. The electrode type boiler water level control device according to claim 1, characterized in that: The connecting block (8) is a rectangular plate-shaped structure, and a through groove adapted to the positioning block (16) is provided on the inner surface of the connecting block (8) close to one end of the cylinder (1).

5. The electrode type boiler water level control device according to claim 1, characterized in that: The cross section of the positioning block (16) is a right-angle trapezoid.

6. The electrode type boiler water level control device according to claim 1, characterized in that: The pull rod (14) is located on the inner side of the spring (15), and a pull block (11) is fixedly connected to the side of the pull rod (14) away from the positioning block (16).

7. The electrode type boiler water level control device according to claim 1, characterized in that: A second sealing ring (10) is arranged on the left side of the inner cavity of the positioning sleeve (6), and a first sealing ring (9) is arranged on the inner wall of the positioning sleeve (6).

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