High-pressure sealing ring of submersible pump
By setting axial grooves and a slider structure on the sealing ring of the submersible pump, the axial pressure is converted into vertical thrust, which solves the problem that the sealing ring is difficult to make tight contact under high pressure and achieves a high-efficiency and safe sealing effect.
Patent Information
- Application Number
- CN202520368440.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing submersible pump seals are difficult to adapt to the contraction or expansion of the pump body under high pressure, resulting in increased sealing gaps, reduced friction, and easy extrusion, thus failing to provide an effective seal.
A high-pressure sealing ring for a submersible pump was designed. By setting an axial groove and a slider structure on the sealing ring, the slider slides in the groove and converts the axial pressure into a thrust perpendicular to the side of the groove. This changes the inner and outer diameters of the sealing ring, making it in close contact with the pump body and increasing the sealing effect.
Under high pressure, the sealing ring can always maintain close contact with the submersible pump, improving the sealing effect, ensuring sealing performance and reliability, and making operation simple and safe.
Smart Images
Figure CN223676572U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sealing element technical field especially relates to a submersible pump high pressure sealing ring. BACKGROUND
[0002] The submersible pump is a kind of pump directly put into water and carry out pumping mechanical;With the operation of submersible pump, high pressure will be generated in the pump body inside the submersible pump, and the expansion of pump body will cause the sealing gap of pump body to increase;And the existing submersible pump sealing ring is an integral annular structure, it is difficult to adapt to the contraction or diastole of pump body, and the increase of sealing gap will cause the friction between sealing ring and pump body to decrease, under the action of pressure in pump body, sealing ring is easily extruded.
[0003] Therefore, a sealing ring suitable for high pressure state of submersible pump is needed. UTILITY MODEL CONTENTS
[0004] The utility model provides a kind of sliding block that is in the groove A along the sealing ring A axial sliding under high pressure to change the inner diameter and outer diameter of sealing ring A by the sliding block along the sealing ring A axial sliding of the pressure conversion into the thrust perpendicular to the side of groove A, so that sealing ring is always and submersible pump is abutted, to increase the sealing effect of submersible pump under high pressure environment, simple and efficient, safe and reliable, convenient to operate submersible pump high pressure sealing ring.
[0005] The utility model is realized by the following technical scheme, provide submersible pump high pressure sealing ring, including sealing ring A;The side of sealing ring A axially is provided with the groove A extending along the sealing ring A axially, and the included angle formed by the side of groove A and the axis of sealing ring A is greater than 0 and less than 90 °, and the sliding block that is axially sliding along sealing ring A and is matched with the side of groove A is provided in groove A;Change the inner diameter and outer diameter of sealing ring A by the sliding block along the sealing ring A axial sliding of the pressure conversion into the thrust perpendicular to the side of groove A through the sliding block that is in the groove A along the sealing ring A axial sliding under high pressure, so that sealing ring is always and submersible pump is abutted, to increase the sealing effect of submersible pump under high pressure environment.
[0006] As optimization, groove A extends along the circumference of sealing ring A, and the sliding block is annular structure extending along the circumference of groove A;The uniformity of the pressure that each part of sealing ring A is applied by the sliding block of annular structure when sliding block slides.
[0007] As optimization, the inside and / or outside of sealing ring A is provided with the groove B extending along the circumference of sealing ring A, and the sealing ring B matched with groove B is sleeved in groove B;The sealing ring B is separated from sealing ring A, and the sealing ring B is extruded by sealing ring A when sliding block slides, and the sealing ring B is contracted and / or expanded along with sealing ring A, so that sealing ring is always and submersible pump is abutted, to increase the sealing effect of submersible pump under high pressure environment.
[0008] As optimization, the included angle formed by the side surface of the groove B and the axis of the sealing ring A is greater than 0° and less than 90°; the side surface of the groove B is arranged to be inclined to convert the pressure for driving the sealing ring A to slide along the axial direction of the sealing ring A into a thrust force perpendicular to the side surface of the groove B, so that the sealing ring B is shrunk and / or expanded along with the sealing ring A, and the sealing ring is always in abutment with the submersible pump, thereby increasing the sealing effect of the submersible pump in a high-pressure environment.
[0009] The utility model discloses the beneficial effect is: through the slider of being in the groove A under the high pressure along sealing ring A axial sliding sets in the slider drive slider along the axial sliding of sealing ring A pressure conversion into the thrust force perpendicular to the side surface of the groove A, to change the inner diameter and outer diameter of sealing ring A, make sealing ring always and submersible pump abut, thereby increase the sealing effect of submersible pump in high pressure environment.
[0010] The uniformity of the pressure applied to each part of the sealing ring A by the ring-shaped slider when the slider slides.
[0011] The sealing ring B is separated from the sealing ring A, and the sealing ring B is extruded by the sealing ring A when the slider slides, and the sealing ring B is shrunk and / or expanded along with the sealing ring A, so that the sealing ring is always in abutment with the submersible pump, thereby increasing the sealing effect of the submersible pump in a high-pressure environment.
[0012] The side surface of the groove B is arranged to be inclined to convert the pressure for driving the sealing ring A to slide along the axial direction of the sealing ring A into a thrust force perpendicular to the side surface of the groove B, so that the sealing ring B is shrunk and / or expanded along with the sealing ring A, and the sealing ring is always in abutment with the submersible pump, thereby increasing the sealing effect of the submersible pump in a high-pressure environment. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a sectional view of the utility model;
[0014] Figure 2 It is a structure schematic view of A; Figure 1
[0015] Figure 3 It is a structure schematic view of the utility model;
[0016] As shown in the figure:
[0017] 1, sealing ring A, 2, slider, 3, sealing ring B, 4, limit block. DETAILED DESCRIPTION
[0018] In order to clearly illustrate the technical features of the present scheme, the present scheme will be described below through specific embodiments.
[0019] As Figure 1 , Figure 2 and Figure 3 The utility model discloses a high pressure sealing ring of submersible pump, including sealing ring A1, the one side of sealing ring A1 axial is provided with the recess A of extending along sealing ring A1 axial, the included angle of recess A side and the axis of sealing ring A1 forms greater than 0 and less than 90, is equipped with the sliding block 2 of sliding along sealing ring A1 axial and and recess A side are adapted in recess A, the inside and outside of sealing ring A1 are equipped with the anti -skid line of extending along the circumference of sealing ring A1 respectively, is equipped with the limiting block 4 of preventing sliding block 2 to get off recess A at the opening of recess A.
[0020] The sealing ring is arranged on the pump body of the submersible pump, the submersible pump runs, high pressure is generated in the pump body, and the sealing gap is enlarged; the sliding block 2 slides along the axial direction of the sealing ring A1 in the recess A under the action of the pressure, the sliding block 2 extrudes the sealing ring A1 through the recess and converts the pressure sliding along the axial direction of the sealing ring A1 into thrust force perpendicular to the side of the recess A, the inside and outside of the sealing ring A1 are expanded and contracted in the radial direction of the sealing ring A1 under the action of the thrust force, the inner diameter and the outer diameter of the sealing ring A1 are changed, and the sealing ring is always in abutment with the submersible pump.
[0021] The submersible pump stops running, the high pressure in the pump body disappears, and the sealing gap is reduced; the sealing ring A1 is contracted and extrudes the sliding block 2 in the recess A under the action of the pressure of the pump body, and the sliding block 2 is gradually reset under the action of the pressure.
[0022] As shown in Figure 1 , Figure 2 and Figure 3 , the recess A extends along the circumferential direction of the sealing ring A1, and the sliding block 2 has a ring structure extending along the circumferential direction of the recess A; and the limiting block 4A extends along the circumferential direction of the sealing ring A1.
[0023] The sliding block 2 slides along the axial direction of the sealing ring A1 in the recess A under the action of the pressure, the sliding block 2 extrudes the sealing ring A1 through the recess and converts the pressure sliding along the axial direction of the sealing ring A1 into thrust force on each part of the inside and outside of the sealing ring A1 perpendicular to the side of the recess A.
[0024] As shown in Figure 1 , Figure 2 and Figure 3 , the inside and / or outside of the sealing ring A1 is provided with a recess B extending along the circumferential direction of the sealing ring A1, and the recess B is sleeved with a sealing ring B3 matched with the recess B; and the side, away from the sealing ring A1, of the sealing ring B3 is provided with an anti-skid line extending along the circumferential direction of the sealing ring B3.
[0025] The inside and outside of the sealing ring A1 are expanded and contracted in the radial direction of the sealing ring A1 under the action of the thrust force, the sealing ring A1 extrudes the sealing ring B3, the sealing ring B3 is contracted and / or expanded along with the sealing ring A1, and the sealing ring is always in abutment with the submersible pump.
[0026] When the submersible pump stops running, the high pressure in the pump body disappears, and the sealing gap is reduced; the sealing ring B3 is gradually reset under the action of the pressure of the pump body.
[0027] As shown in Figure 1 , Figure 2 and Figure 3 , the included angle formed by the side surface of the groove B and the axis of the sealing ring A1 is greater than 0° and less than 90°.
[0028] The sealing ring A1 slides axially along the sealing ring A1 under the action of the pressure, the sealing ring A1 and the sealing ring B3 slide on the side surface of the groove B and convert the pressure driving the sealing ring A1 to slide axially along the sealing ring A1 into a thrust force extending radially along the sealing ring A1, the sealing ring B3 shrinks and / or expands with the sealing ring A1, and the sealing ring is always in abutment with the submersible pump.
[0029] In actual production, the sealing ring is arranged on the pump body of the submersible pump, the submersible pump runs, high pressure is generated in the pump body, and the sealing gap is increased; the slider 2 extrudes the sealing ring A1 through the groove and converts the pressure for the sealing ring A1 to slide axially into a thrust force on each part of the inner and outer sides of the sealing ring A1 perpendicular to the side surface of the groove A, the inner and outer sides of the sealing ring A1 respectively expand and shrink radially along the sealing ring A1 under the action of the thrust force, the inner and outer diameters of the sealing ring A1 change, and the sealing ring is always in abutment with the submersible pump; the inner and outer sides of the sealing ring A1 respectively expand and shrink radially along the sealing ring A1 under the action of the thrust force, the sealing ring A1 extrudes the sealing ring B3, the sealing ring B3 shrinks and / or expands with the sealing ring A1, and the sealing ring is always in abutment with the submersible pump; at the same time, the sealing ring A1 slides axially along the sealing ring A1 under the action of the pressure, the sealing ring A1 and the sealing ring B3 slide on the side surface of the groove B and convert the pressure driving the sealing ring A1 to slide axially along the sealing ring A1 into a thrust force extending radially along the sealing ring A1, the sealing ring B3 shrinks and / or expands with the sealing ring A1, and the sealing ring is always in abutment with the submersible pump.
[0030] When the submersible pump stops running, the high pressure in the pump body disappears, and the sealing gap is reduced; the sealing ring B is gradually reset under the action of the pressure of the pump body; at the same time, the sealing ring A shrinks under the action of the pressure of the pump body and extrudes the slider in the groove A, and the slider is gradually reset under the action of the pressure.
[0031] Of course, the above description is also not limited to the above examples, the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not a limitation on the utility model, the utility model has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.
Claims
1. A high pressure seal ring for submersible pumps comprising a seal ring A (1); characterized by: The side of the sealing ring A (1) in the axial direction is provided with a groove A extending in the axial direction of the sealing ring A (1), the included angle between the side of the groove A and the axis of the sealing ring A (1) is greater than 0° and less than 90°, and the groove A is provided with a sliding block (2) sliding in the axial direction of the sealing ring A (1) and matched with the side of the groove A.
2. The submersible pump high pressure seal ring of claim 1, wherein: The groove A extends in the circumferential direction of the sealing ring A (1), and the sliding block (2) is in the form of a ring extending in the circumferential direction of the groove A.
3. The submersible pump high pressure seal ring of claim 1, wherein: The inner side and / or the outer side of the sealing ring A (1) is provided with a groove B extending in the circumferential direction of the sealing ring A (1), and the groove B is provided with a sealing ring B (3) matched with the groove B.
4. The submersible pump high pressure seal ring of claim 3, wherein: The included angle between the side of the groove B and the axis of the sealing ring A (1) is greater than 0° and less than 90°.