A steam generator water level control mechanism

Abstract

The utility model relates to the technical field of float ball type water level control equipment discloses a steam generator water level control mechanism, including valve body, its installation is on the lateral wall of steam generator water tank, its upper hinged installation has valve stem, one end of valve stem has first insertion block, first insertion block has first block hole, connecting rod both ends all have insertion slot, both ends insertion slot all have pin hole, one side of connecting rod has two pin shafts, first insertion block is inserted in corresponding insertion slot, the utility model, through two limit cylinders can be positioned two pin shafts, complete connecting rod installation between valve body and float ball, when disassembling connecting rod, adjust two limit cylinders in fixed sleeve to be close to each other and retract to corresponding cylinder cavity, can take down two pin shafts, can complete the maintenance disassembly of connecting rod, make the maintenance dismounting operation of float ball type water level control mechanism simple and quick.

Description

Technical Field

[0001] This utility model relates to the technical field of float-type water level control equipment, and in particular to a steam generator water level control mechanism. Background Technology

[0002] Water level control of a steam generator is a core element in ensuring its safe and efficient operation, directly affecting the equipment's stability, energy consumption, and service life. Proper water level control can prevent problems such as dry burning, tube rupture, and water carryover in the steam.

[0003] Existing steam generator water level control mechanisms typically employ float-type water level control, which utilizes the characteristic of a float (with a density less than water) rising and falling with the water level to drive a mechanical linkage and control the opening and closing of the inlet valve. However, with prolonged use, this type of float-type water level control is prone to failure in the mechanical connection components, especially the connection between the linkage and the float, which frequently requires disassembly and maintenance. However, the traditional connection between the linkage and the float is usually a bolt connection, requiring the use of auxiliary tools such as screwdrivers or wrenches for disassembly and maintenance, making the operation inconvenient. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a steam generator water level control mechanism to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A steam generator water level control mechanism includes:

[0007] A valve body is mounted on the side wall of the steam generator water tank, and a valve stem is hinged to it. One end of the valve stem has a first insert block, and the first insert block has a first hole.

[0008] The connecting rod has slots at both ends, and pin holes on the slots at both ends. One side of the connecting rod has two pins. The first insert is inserted into the corresponding slot, and the corresponding pin is inserted into the pin hole at one end of the connecting rod and the first hole of the first insert.

[0009] The outer cylinder assembly, which is mounted on the connecting rod, can limit the movement of the two pins;

[0010] A float has a connecting seat with a tapered bevel. One side of the connecting seat has a second insert with a second hole. The second insert is inserted into a slot at the other end of a connecting rod. Another pin is inserted into a pin hole at the other end of the connecting rod and the second hole of the second insert.

[0011] Preferably, the valve stem has a retaining ring, and the retaining ring has a tapered inclined surface.

[0012] Preferably, the outer walls at both ends of the connecting rod have two grooves, and the grooves have a rectangular cross-section.

[0013] Preferably, the outer cylinder assembly includes:

[0014] Two limiting cylinders, each with two inner blocks on its inner wall, are movably installed in two sliding grooves at both ends of the connecting rod. The limiting cylinders are movably sleeved on the connecting rod. The cylinder opening at one end of the limiting cylinder has an inner conical groove and abuts against the conical inclined surface of the retaining ring.

[0015] A fixed sleeve is fixedly installed on the connecting rod, and both ends of the sleeve have cavities. Two limiting sleeves are respectively movably embedded in the cavities at both ends of the fixed sleeve.

[0016] Two springs, one end of each spring is fixedly installed on the inner wall of one side of the cavity of the two ends of the fixed sleeve, and the other end of each spring is fixedly installed on the outer wall of the other end of the two limiting sleeves.

[0017] Preferably, the conical groove inside the opening of one end of the fixed sleeve corresponding to the limiting sleeve abuts against the conical inclined surface of the connecting seat on the float.

[0018] Preferably, the inner walls of the conical grooves inside the openings of the two limiting cylinders are provided with first sealing rings, and the first sealing rings at one end of the openings of the two limiting cylinders are respectively sealed and attached to the conical inclined surface of the retaining ring of the valve stem and the conical inclined surface of the connecting seat on the float.

[0019] Preferably, the inner walls of the openings of the cylinder cavities at both ends of the fixed sleeve are provided with second sealing rings, and the second sealing rings in the cylinder cavities at both ends of the fixed sleeve are respectively sealed and fitted to the outer walls of the two limiting cylinders.

[0020] When installing the connecting rod between the valve body and the float, the slots at both ends of the connecting rod are inserted into the first and second insert blocks respectively. The two limiting cylinders inside the adjusting sleeve retract into their corresponding cavities, facilitating the insertion of two pins into the pin hole at one end of the connecting rod and the first hole on the first insert block, and the pin hole at the other end and the second hole on the second insert block. Then, the two limiting cylinders are released, and the elastic force of the two springs generates a force that pulls the two limiting cylinders away from each other. The two limiting cylinders limit the two pins, completing the installation of the connecting rod between the valve body and the float. When disassembling the connecting rod, the two limiting cylinders inside the adjusting sleeve retract into their corresponding cavities, allowing the removal of the two pins. This enables convenient and quick maintenance and disassembly of the connecting rod, making the maintenance and disassembly of the float-type water level control mechanism simple and fast. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure in plan view of this utility model;

[0023] Figure 3 This utility model Figure 2 A schematic diagram of the structure of part A;

[0024] Figure 4 This utility model Figure 2 A structural diagram of section B;

[0025] Figure 5 This is a structural schematic diagram of the valve body of this utility model from a perspective;

[0026] Figure 6 This is a partial cross-sectional view of the fixed sleeve of this utility model from an exploded perspective.

[0027] Figure 7 This is a structural schematic diagram of the float of this utility model from the perspective of its design.

[0028] Figure 8 This is a partial cross-sectional view of the two ends of the fixing sleeve of this utility model.

[0029] In the diagram: 100, valve body; 110, valve stem; 120, first insert block; 1201, first hole; 130, retaining ring; 200, connecting rod; 2001, slot; 2002, pin hole; 2003, slide groove; 210, pin shaft; 300, outer cylinder assembly; 310, limiting cylinder; 3101, inner block; 3102, first sealing ring; 320, fixing sleeve; 3201, cylinder cavity; 3202, second sealing ring; 330, spring; 400, float; 410, connecting seat; 420, second insert block; 4201, second hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Existing steam generator water level control mechanisms typically employ float-type water level control. After prolonged use, mechanical connection components are prone to failure, particularly the connection between the connecting rod and the float, which frequently requires disassembly and maintenance. However, the traditional connection between the connecting rod and the float is usually bolted, requiring the use of screwdrivers or wrenches for disassembly and maintenance, making operation inconvenient. To address these issues, this embodiment discloses a steam generator water level control mechanism comprising: Figure 1 The valve body 100 and float 400 are shown; as Figure 6 The connecting rod 200 and the outer cylinder assembly 300 are shown.

[0032] like Figure 1 As shown, the valve body 100 is installed on the side wall of the steam generator water tank, and a valve stem 110 is hinged on it. The valve stem 110 has a retaining ring 130 with a tapered inclined surface. One end of the valve stem 110 has a first insert 120. At the same time, the float 400 has a connecting seat 410 with a tapered inclined surface, and one side of the connecting seat 410 has a second insert 420.

[0033] like Figure 2 , Figure 3 and Figure 4 As shown, in order to install the two ends of the connecting rod 200 onto the first insert 120 at one end of the valve stem 110 and the second insert 420 on the connecting seat 410 of the float 400 respectively; both ends of the connecting rod 2000 have slots 2001, the first insert 120 is inserted into the corresponding slot 2001; the second insert 420 is inserted into the slot 2001 at the other end of the connecting rod 200; at the same time, the first insert 120 has a first hole 1201, the second insert 420 has a second hole 4201, the slots 2001 at both ends of the connecting rod 2000 have pin holes 2002, and one side of the connecting rod 200 has two pins 210, which are respectively inserted into the pin hole 2002 at one end of the connecting rod 2000, the first hole 1201 of the first insert 120, the pin hole 2002 at the other end, and the second hole 4201 of the second insert 420.

[0034] like Figure 6 As shown, the outer walls at both ends of the connecting rod 200 each have two grooves 2003, and the cross-section of the grooves 2003 is rectangular.

[0035] Continue as Figure 6As shown, in order to limit the pins 210 at both ends of the connecting rod 200, an outer cylinder assembly 300 is provided on the connecting rod 200. The outer cylinder assembly 300 can limit the two pins 210. The outer cylinder assembly 300 includes: two limiting cylinders 310, a fixing sleeve 320, and two springs 330. The inner wall of each of the two limiting cylinders 310 has two inner blocks 3101. The two inner blocks 3101 on the inner wall of the two limiting cylinders 310 are respectively movably installed in the two sliding grooves 2003 at both ends of the connecting rod 200. The limiting cylinders 310 are movably sleeved on the connecting rod 200. The cylinder opening at one end of the corresponding limiting cylinder 310 has an inner conical groove and abuts against... The retaining ring 130 has a tapered inclined surface; the fixed sleeve 320 is fixedly installed on the connecting rod 200, and both ends of the sleeve have a cylindrical cavity 3201. The two limiting cylinders 310 are respectively movably embedded in the cylindrical cavities 3201 at both ends of the fixed sleeve 320; one end of each of the two springs 330 is fixedly installed on the inner wall of one side of the cylindrical cavity 3201 at both ends of the fixed sleeve 320, and the other end of each of the two springs 330 is fixedly installed on the outer wall of the other end of each of the two limiting cylinders 310; under the elastic force of the two springs 330, a force is generated that causes the two limiting cylinders 310 to move away from each other, and the two limiting cylinders 310 can limit the two pins 210.

[0036] like Figure 4 As shown, the conical groove inside the opening of the fixed sleeve 320 corresponding to the limiting sleeve 310 abuts against the conical inclined surface of the connecting seat 410 on the float 400.

[0037] like Figure 3 and Figure 4 As shown, the inner walls of the conical grooves inside the openings of the two limiting cylinders 310 are each provided with a first sealing ring 3102. The first sealing rings 3102 at one end of the openings of the two limiting cylinders 310 are respectively sealed and attached to the conical inclined surface of the retaining ring 130 of the valve stem 110 and the conical inclined surface of the connecting seat 410 on the float 400; to prevent water from entering the slots 2001 at both ends of the connecting rod 200.

[0038] Continue as Figure 3 and Figure 4 As shown, the inner walls of the openings of the cylinder cavities 3201 at both ends of the fixed sleeve 320 are provided with second sealing rings 3202. The second sealing rings 3202 in the cylinder cavities 3201 at both ends of the fixed sleeve 320 are respectively sealed and attached to the outer walls of the two limiting cylinders 310 to prevent water from entering the cylinder cavities 3201 at both ends of the fixed sleeve 320.

[0039] In this application, when installing the connecting rod 200 between the valve body 100 and the float 400, the slots 2001 at both ends of the connecting rod 200 are respectively inserted into the first insert block 120 and the second insert block 420. The two limiting sleeves 310 inside the adjusting and fixing sleeve 320 retract close to each other into their corresponding cavities 3201, facilitating the insertion of two pins 210 into the pin hole 2002 at one end of the connecting rod 200 and the first hole 1201 on the first insert block 120, and the pin hole 2002 at the other end and the second hole 4201 on the second insert block 420. Then, the two limiting sleeves 310 are released. 10. Under the elastic force of the two springs 330, a force is generated that causes the two limiting cylinders 310 to move away from each other. The two limiting cylinders 310 can limit the two pins 210, thus completing the installation of the connecting rod 200 between the valve body 100 and the float 400. When the connecting rod 200 is disassembled, the two limiting cylinders 310 in the adjusting sleeve 320 are brought closer to each other and retracted into the corresponding cylinder cavity 3201, so that the two pins 210 can be removed. This allows for the maintenance and disassembly of the connecting rod 200, making the maintenance and disassembly of the float-type water level control mechanism simple and quick.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A steam generator water level control mechanism, characterized in that, include: A valve body (100) is installed on the side wall of the steam generator water tank, and a valve stem (110) is hinged on it. One end of the valve stem (110) has a first insert (120) and a first hole (1201) on the first insert (120). The connecting rod (200) has slots (2001) at both ends, and pin holes (2002) on the slots (2001) at both ends. The connecting rod (200) has two pins (210) on one side. The first insert (120) is inserted into the corresponding slot (2001), and the corresponding pin (210) is inserted into the pin hole (2002) at one end of the connecting rod (200) and the first hole (1201) of the first insert (120). The outer cylinder assembly (300) is mounted on the connecting rod (200), and the two pins (210) can be limited by the outer cylinder assembly (300); A float (400) has a connecting seat (410) with a tapered slope. One side of the connecting seat (410) has a second insert (420) with a second hole (4201). The second insert (420) is inserted into a slot (2001) at the other end of the connecting rod (200). Another pin (210) is inserted into a pin hole (2002) at the other end of the connecting rod (200) and the second hole (4201) of the second insert (420).

2. The steam generator water level control mechanism according to claim 1, characterized in that, The valve stem (110) has a retaining ring (130) with a tapered inclined surface.

3. The steam generator water level control mechanism according to claim 1, characterized in that, The connecting rod (200) has two grooves (2003) on the outer side walls at both ends, and the grooves (2003) have a rectangular cross-section.

4. The steam generator water level control mechanism according to claim 3, characterized in that, The outer cylinder assembly (300) includes: Two limiting cylinders (310), each with two inner blocks (3101) on its inner wall. The two inner blocks (3101) on the inner wall of the two limiting cylinders (310) are respectively movably installed in two sliding grooves (2003) at both ends of the connecting rod (200). The limiting cylinder (310) is movably sleeved on the connecting rod (200). The cylinder opening at one end of the limiting cylinder (310) has an inner conical groove and abuts against the conical inclined surface of the retaining ring (130). A fixed sleeve (320) is fixedly installed on a connecting rod (200), and both ends of the sleeve have cavities (3201). Two limiting sleeves (310) are respectively movably embedded in the cavities (3201) at both ends of the fixed sleeve (320). Two springs (330) are provided. One end of each spring (330) is fixedly installed on the inner wall of one side of the cavity (3201) at both ends of the fixed sleeve (320). The other end of each spring (330) is fixedly installed on the outer wall of the other end of each of the two limiting sleeves (310).

5. The steam generator water level control mechanism according to claim 4, characterized in that, The conical groove inside the opening of the corresponding limiting sleeve (310) on the fixed sleeve (320) abuts against the conical inclined surface of the connecting seat (410) on the float (400).

6. The steam generator water level control mechanism according to claim 5, characterized in that, The inner walls of the conical grooves inside the openings of the two limiting cylinders (310) are provided with first sealing rings (3102). The first sealing rings (3102) at one end of the openings of the two limiting cylinders (310) are respectively sealed and attached to the conical inclined surface of the retaining ring (130) of the valve stem (110) and the conical inclined surface of the connecting seat (410) on the float (400).

7. The steam generator water level control mechanism according to claim 6, characterized in that, The inner walls of the cylinder openings of the cylinder cavities (3201) at both ends of the fixed sleeve (320) are provided with second sealing rings (3202), and the second sealing rings (3202) in the cylinder cavities (3201) at both ends of the fixed sleeve (320) are respectively sealed and attached to the outer walls of the two limiting cylinders (310).

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