Safety shield lifting device of high-voltage electrode hot water boiler

Abstract

The utility model discloses a safety shield lifting device of a high-voltage electrode hot water boiler, and relates to the technical field of electrode boilers. The device structurally comprises a heat insulation guide pipe, a hexagonal prism, a support, a protective shield and a lead screw motor. The protective shield is vertically fixed at one end of the bracket; the heat insulation guide pipe comprises a cavity circular pipe; a flange plate is fixed at the upper end of the cavity circular tube; the inner wall of the lower end part of the cavity circular tube is fixedly provided with a guide sleeve with a circular outer circle and a hexagonal inner circle in guide fit with the hexagonal prism; multiple threaded blind holes are formed in the lower end of the guide sleeve; a sealing assembly matched with the hexagonal prism is fixedly installed at the lower end of the guide sleeve through a plurality of first bolts. The heat insulation guide pipe is additionally arranged outside the lead screw motor, direct contact between high-temperature water in the boiler and the motor is effectively isolated, heat transfer is reduced, and therefore the fault risk caused by high temperature of the lead screw motor is reduced; and meanwhile, the energy utilization efficiency is also improved through accurate control, and the performance and economical efficiency of the high-voltage electrode hot water boiler are integrally improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electrode boiler, especially relates to a high pressure electrode hot water boiler safety shield lifting device. BACKGROUND

[0002] The electrode boiler is a kind of high-efficiency heating equipment using the high thermal resistance characteristics of water to directly convert electric energy into heat energy.The electrode boiler is mainly composed of one or more electrodes, and these electrodes are installed in the water tank of the boiler.The heating power adjustment of the electrode boiler is achieved by adjusting the position of the protective shield, changing the contact area between the electrode and the zero electrode, and adjusting the heat supply load of the boiler.The protective shield is movably arranged on the outer side of the electrode and is controlled by the electric actuator, and can reciprocate up and down along the vertical direction, for adjusting the contact area between the electrode and the zero electrode, and adjusting the heat supply load of the boiler, and the adjustment range is generally 5% to 100%.The utility model patent with the authorized announcement number CN221825587U discloses a high pressure electrode hot water boiler running at normal pressure, wherein the electric actuator includes a transmission motor and a transmission shaft, the transmission motor is connected to the transmission shaft through the output end, and then drives the protective shield to move up and down.However, this design has a significant problem: since the transmission shaft needs to penetrate into the inside of the boiler barrel, the high-temperature water in the boiler barrel will be directly transmitted to the transmission motor through the transmission shaft.This causes the transmission motor to work in a high-temperature environment for a long time, which easily causes the motor to overheat and even be damaged, and affects the normal operation and service life of the boiler.Therefore, there is an urgent need for a kind of high pressure electrode hot water boiler safety shield lifting device which can effectively isolate the high-temperature environment and protect the transmission motor from damage, to improve the performance and economy of the high pressure electrode hot water boiler.Under this background, the utility model proposes a new kind of high pressure electrode hot water boiler safety shield lifting device, aiming at solving the above problems. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of high pressure electrode hot water boiler safety shield lifting device, by introducing heat insulation guide pipe and the screw rod mechanism of servo motor drive, and cooperate sealing assembly and counterweight design, solve the problem that the transmission motor of mobile mechanism in prior art is easily overheated and damaged due to high-temperature water transmission.

[0004] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model discloses a high -voltage electrode hot water boiler safety shield lifting device, including heat insulation guide pipe, hexagonal prism, support, protection shield and screw rod motor, the protection shield is fixed in one end of support perpendicularly, the heat insulation guide pipe includes cavity round pipe, the cavity round pipe upper end is fixed with flange, the cavity round pipe lower end portion inner wall is fixed with the outer circle inner hexagon with six prism guide cooperation's guide sleeve, a plurality of threaded blind holes are seted up to the guide sleeve lower extreme, the guide sleeve lower extreme is fixed with the sealing assembly that cooperates with six prism through a plurality of first bolt mounting, the screw rod motor is installed on the flange, and the screw rod of screw rod motor is coaxial with the cavity round pipe and sets up, the blind hole is seted up to the six prism upper end, the blind hole upper end fixed mounting has the screw rod nut of the screw rod threaded connection cooperation with screw rod motor, the first stud head is fixed to the six prism lower extreme, the first stud head is connected with first cap nut after passing through support.

[0006] As a preferred technical scheme of the utility model, the sealing assembly comprises a closing gland and a rectangular sealing ring; the closing gland comprises a cylinder body matched with the inner wall of the cavity round pipe; a regular hexagonal through hole matched with the outer wall of the hexagonal prism is formed in the center of the cylinder body; at least three hexagonal inner ring grooves for placing the rectangular sealing ring are formed in the inner wall of the regular hexagonal through hole; and six third circular through holes for penetrating the first bolts are formed in the cylinder body.

[0007] As a preferred technical scheme of the utility model, one side surface of the hexagonal prism is provided with a guide groove along the axial direction of the hexagonal prism, and the guide groove is communicated with the lower end surface of the hexagonal prism; and a limiting block matched with the guide groove is fixed to the lower end surface of the cylinder body.

[0008] As a preferred technical scheme of the utility model, the support is a rectangular plate body; a first circular through hole matched with the first stud head is formed in the support; a second circular through hole is formed in the other end of the support, and a counterweight is installed.

[0009] As a preferred technical scheme of the utility model, the counterweight comprises a spherical ball; a second stud head is fixed to the spherical ball; and a second cap nut is threadedly connected to the second stud head after penetrating through the second circular through hole.

[0010] As a preferred technical scheme of the utility model, a rubber gasket is arranged between the sealing assembly and the guide sleeve.

[0011] The utility model has the following beneficial effects:

[0012] 1. The utility model discloses a heat insulation guide pipe is additionally arranged outside the screw motor, effectively insulates the direct contact of high temperature water in the boiler and the motor, reduces the heat transfer, thereby reduces the failure risk of screw motor because of high temperature. Because the influence of heat on the motor is reduced, the failure rate is reduced, and the energy utilization efficiency is improved by accurate control, and the performance and economy of the high-pressure electrode hot water boiler are improved as a whole.

[0013] 2. The utility model discloses through increase counterweight and sealing assembly and other structures, improved the stability and reliability of whole device. Counterweight helps the weight of protection shield, reduces the unstable factor because of partial weight;Sealing assembly effectively prevents moisture from entering the inside of key components, guarantees the normal operation of equipment.

[0014] 3. The utility model discloses the design of sealing assembly is convenient for dismantling and replacement rectangular sealing ring, make daily maintenance work more simple and fast. Meanwhile, the setting of guide channel and limit block also ensures that six prism does not separate from the effective drive of screw motor, further improves the stability and safety of equipment.

[0015] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0017] Figure 1 It is the structure schematic diagram of the utility model high-pressure electrode hot water boiler safety shield lifting device.

[0018] Figure 2 It is the partial structure sectional view of the utility model.

[0019] Figure 3 It is the structure schematic diagram of heat insulation guide pipe.

[0020] Figure 4 It is the structure schematic diagram of six prism and screw nut.

[0021] Figure 5 It is the structure schematic diagram of support and protection shield.

[0022] Figure 6 It is the structure schematic diagram of closed gland.

[0023] Figure 7 It is the structure schematic diagram of ball.

[0024] The components represented by the reference numbers in the drawings are listed as follows:

[0025] 1 - insulated guide tube, 2 - hexagonal prism, 3 - bracket, 4 - protective shield, 5 - screw motor, 6 - sealing assembly, 7 - screw nut, 8 - first capped nut, 9 - counterweight, 10 - rubber gasket, 11 - hollow round tube, 12 - flange plate, 13 - guide sleeve, 14 - threaded blind hole, 21 - blind hole, 22 - first stud head, 23 - guide channel, 31 - first round through hole, 32 - second round through hole, 61 - closed gland, 62 - rectangular sealing ring, 611 - cylinder, 612 - regular hexagonal through hole, 613 - hexagonal inner ring groove, 614 - third round through hole, 615 - limiting block, 91 - round ball, 92 - second stud head, 93 - second capped nut. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Embodiment one:

[0028] Please refer to Figures 1-7As shown, the utility model is a kind of high-voltage electrode hot water boiler safety shield lifting device, including heat insulation guide pipe 1, hexagonal prism 2, support 3, protective shield 4 and screw rod motor 5. Protective shield 4 is vertically fixed at one end of support 3. Heat insulation guide pipe 1 includes cavity round pipe 11. Flange plate 12 is fixed on the upper end of cavity round pipe 11. The inner wall of the lower end of cavity round pipe 11 is fixed with the guide sleeve 13 that is guided with the outer circle inner hexagon and hexagonal prism 2. A plurality of threaded blind holes 14 are formed in the lower end of guide sleeve 13. The sealing assembly 6 that is matched with hexagonal prism 2 is fixed on guide sleeve 13 by a plurality of first bolts. Screw rod motor 5 is installed on flange plate 12, and the screw rod of screw rod motor 5 is coaxially arranged with cavity round pipe 11, the screw rod of screw rod motor 5 is completely placed in cavity round pipe 11, and the screw rod end of screw rod motor 5 is placed above guide sleeve 13. Blind hole 21 is formed in the upper end of hexagonal prism 2. The screw rod nut 7 that is threadedly connected with the screw rod of screw rod motor 5 is fixedly installed on the upper end of blind hole 21. The motor on screw rod motor 5 is servo motor, and the distance of lifting is the number of turns of servo motor multiplied by the pitch of screw rod, and the control is accurate. First stud head 22 is fixed at the lower end of hexagonal prism 2. First cap nut 8 is threadedly connected to first stud head 22 after passing through support 3. Heat insulation guide pipe 1 is installed on the upper head of boiler, and the upper end of heat insulation guide pipe 1 is welded with the upper head or the upper head is reserved with the second flange plate matched with flange plate 12, and the flange plate is used for butt joint installation. Heat insulation guide pipe 1, hexagonal prism 2, screw rod motor 5 and screw rod nut 7 combine to form a heat insulation type vertical driving execution device, which stably adjusts support 3 and protective shield 4.

[0029] The side wall of heat insulation guide pipe 1 is hollow structure, the screw rod of screw rod motor 5 is placed in cavity round pipe 11 and blind hole 21, and the screw rod of screw rod motor 5 only contacts with screw rod nut 7, so that direct contact with hot water in boiler is avoided, heat transfer is reduced, and the risk of thermal failure of screw rod motor 5 is reduced.

[0030] Among them, sealing assembly 6 includes closed gland 61 and rectangular sealing ring 62. Closed gland 61 includes cylindrical body 611 matched with the inner wall of cavity round pipe 11. Hexagonal through hole 612 is formed in the center of cylindrical body 611 and is matched with the outer wall of hexagonal prism 2 with gap. At least three hexagonal inner ring grooves 613 for placing rectangular sealing ring 62 are formed in the inner wall of hexagonal through hole 612. Cylindrical body 611 is provided with six third circular through holes 614 for penetrating first bolt. Closed gland 61 of sealing assembly 6 is convenient to disassemble for replacing rectangular sealing ring 62 in it during maintenance, and maintenance and replacement are convenient and fast.

[0031] Wherein in order to avoid the six prism 2 installed on the screw nut 7 and the screw rod of the screw motor 5, that is, to prevent the six prism 2 from being separated from the effective driving of the screw motor 5, a guide groove 23 is arranged on one side of the six prism 2 along the axial direction, and the guide groove 23 is communicated with the lower end surface of the six prism 2. The lower end surface of the cylinder 611 is fixed with a limiting block 615 matched with the guide groove 23.

[0032] Wherein, the bracket 3 is a rectangular plate body. The bracket 3 is provided with a first circular through hole 31 matched with the first stud head 22. The other end of the bracket 3 is provided with a second circular through hole 32, and a counterweight 9 is installed on the second circular through hole 32. The material of the bracket 3 is the same as that of the protective shield 4 and is integrally formed. Wherein, the counterweight 9 includes a spherical ball 91. The spherical ball 91 is fixed with a second stud head 92. The second stud head 92 is threadedly connected with a second cap nut 93 after passing through the second circular through hole 32. By increasing the counterweight 9, the protective shield 4 at the other end of the bracket 3 is balanced, so as to avoid the increase of stress on one side wall of the six prism 2 caused by one-sided weight, and to ensure the long-term stable operation of the whole lifting execution structure.

[0033] Wherein in order to avoid the sealing assembly 6 and the guide sleeve 13 from being sealed tightly, the rubber gasket 10 is arranged between the sealing assembly 6 and the guide sleeve 13.

[0034] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The embodiments are selected and described in detail in order to better explain the principles and practical application of the application, so that the skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A high-voltage electrode hot water boiler safety shield lifting device, characterized in that: it comprises a heat insulation guide pipe (1), a hexagonal prism (2), a support (3), a protective shield (4) and a lead screw motor (5); the protective shield (4) is vertically fixed at one end of the support (3); the heat insulation guide pipe (1) comprises a hollow round pipe (11); the upper end of the hollow round pipe (11) is fixed with a flange plate (12); the inner wall of the lower end of the hollow round pipe (11) is fixed with a guide sleeve (13) which is guided in cooperation with the hexagonal prism (2); a plurality of threaded blind holes (14) are formed in the lower end of the guide sleeve (13); the lower end of the guide sleeve (13) is fixedly installed with a sealing assembly (6) which cooperates with the hexagonal prism (2) through a plurality of first bolts; the lead screw motor (5) is installed on the flange plate (12), and the lead screw of the lead screw motor (5) is coaxially arranged with the hollow round pipe (11); a blind hole (21) is formed in the upper end of the hexagonal prism (2); a lead screw nut (7) which threadedly connects with the lead screw of the lead screw motor (5) is fixedly installed at the upper end of the blind hole (21); a first stud head (22) is fixed at the lower end of the hexagonal prism (2); the first stud head (22) is threadedly connected with a first cap nut (8) after penetrating through the support (3). The sealing assembly (6) comprises a closed gland (61) and a rectangular sealing ring (62); the closed gland (61) comprises a cylindrical body (611) which cooperates with the inner wall of the hollow round pipe (11); a regular hexagonal through hole (612) which gap cooperates with the outer wall of the hexagonal prism (2) is formed in the center of the cylindrical body (611); at least three hexagonal inner ring grooves (613) for placing the rectangular sealing ring (62) are formed in the inner wall of the regular hexagonal through hole (612); six third circular through holes (614) for penetrating the first bolts are formed in the cylindrical body (611). One of the side surfaces of the hexagonal prism (2) is provided with a guide groove (23) which is arranged along the axial direction of the hexagonal prism (2), and the guide groove (23) is in communication with the lower end surface of the hexagonal prism (2); the lower end surface of the cylindrical body (611) is fixed with a limiting block (615) which cooperates with the guide groove (23). The support (3) is a rectangular plate body; the support (3) is provided with a first circular through hole (31) which cooperates with the first stud head (22); the other end of the support (3) is provided with a second circular through hole (32) and is installed with a counterweight (9).

2. The high pressure electrode hot water boiler safety shield lifting device of claim 1, wherein, The counterweight (9) comprises a spherical ball (91); the spherical ball (91) is fixed with a second stud head (92); the second stud head (92) is threadedly connected with a second cap nut (93) after penetrating through the second circular through hole (32).

3. The high pressure electrode hot water boiler safety shield lifting device of claim 2, wherein, A rubber gasket (10) is arranged between the sealing assembly (6) and the guide sleeve (13).

4. The high pressure electrode hot water boiler safety shield lifting device of claim 1 wherein, ​ 5. The high pressure electrode hot water boiler safety shield lifting device of claim 4, wherein, ​ 6. The high pressure electrode hot water boiler safety shield lifting device of claim 1 wherein, ​

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