CN116641896B - Safe explosion-proof sediment stuff pump - Google Patents
Safe explosion-proof sediment stuff pump Download PDFInfo
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- CN116641896B CN116641896B CN202310882213.0A CN202310882213A CN116641896B CN 116641896 B CN116641896 B CN 116641896B CN 202310882213 A CN202310882213 A CN 202310882213A CN 116641896 B CN116641896 B CN 116641896B
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- explosion
- pressure relief
- proof
- relief hole
- pump
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- 239000013049 sediment Substances 0.000 title description 2
- 239000002002 slurry Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims description 10
- 238000013329 compounding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 13
- 230000003139 buffering effect Effects 0.000 description 10
- 238000004880 explosion Methods 0.000 description 10
- 239000007787 solid Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application provides a safe explosion-proof slurry pump, and belongs to the technical field of slurry pumps. The safe explosion-proof slurry pump comprises a pump body, an explosion-proof column, a release ring and a sealing piece, wherein the pump body is provided with a pump shell and a volute arranged in the pump shell, a first pressure relief hole is formed in the pump shell, a second pressure relief hole is formed in the volute, and the first pressure relief hole is aligned with the second pressure relief hole; the explosion-proof column is inserted into the first pressure relief hole and the second pressure relief hole; the release ring is clamped between the pump shell and the volute, sleeved on the middle part of the explosion-proof column and fixedly connected with the explosion-proof column; the sealing member is arranged on the release ring or the explosion-proof column to seal at least the first pressure relief hole. In normal operation, the explosion-proof column, the release ring and the sealing element plug the pressure release channel; when the internal pressure of the pump body is too large, the release ring and the explosion-proof column are broken, so that the pressure release channel is opened, the volute can be directly released outwards, the pressure release is timely and delay-free, the timeliness is high, and the slurry pump is not affected by vibration, blockage and the like in long-term operation, and is quite reliable.
Description
Technical Field
The application belongs to the technical field of slurry pumps, and particularly relates to a safe explosion-proof slurry pump.
Background
The slurry pump is a centrifugal pump capable of pumping liquid containing solid particles, is generally used in the fields of mines, power plants, dredging, metallurgy, chemical industry, building materials, petroleum and other industries, and belongs to a key component for conveying feed liquid or waste liquid. Because the liquid to be conveyed contains solid particles, the slurry pump may have the condition of blockage of a water inlet pipe or a water outlet pipe in the use process, if the slurry pump cannot be timely decompressed, the pressure in the pump can be rapidly increased, the conditions of rapid abrasion and damage of a pump part and the like are easily caused, and even accidents such as explosion and pipeline bursting and the like can be caused in serious cases.
In order to prevent the occurrence of the above situation, at present, the explosion protection of the slurry pump generally adopts the following two modes: firstly, the pressure relief is carried out by arranging a pressure relief valve on a sealing ring on one side of the pump shell, which faces to the transmission shaft, and secondly, the internal pressure monitoring equipment is additionally arranged on the pump shell and is stopped according to the feedback of the internal pressure monitoring equipment. But both of these methods still have the potential for untimely pressure relief. For the former, the shell of the slurry pump is generally composed of an internal volute and an external pump shell, and the pressure release valve is arranged on the sealing ring of the pump shell, so that impurities such as solid particles are easy to accumulate, the slurry pump is easy to be blocked, a leakage channel between the volute and the pump shell is very small, pressure release is carried out only by means of leaked liquid, and the pressure release capacity is very limited; while for the latter, shutdown pressure relief is the most effective method, but the control speed is influenced by the sensitivity and stability of the sensor and the processor, the operation environment of the slurry pump is usually bad, the operation vibration is very large, and the sensor, the processor and the circuit are easy to age and lose efficacy due to long-term operation.
Therefore, it is necessary to provide a slurry pump adopting a new pressure relief mode to solve the above technical problems.
Disclosure of Invention
The application aims to provide a safe explosion-proof slurry pump, which solves the technical problem that the explosion-proof mode of the slurry pump in the prior art has untimely pressure relief.
In order to achieve the above purpose, the application adopts the following technical scheme: the safe explosion-proof slurry pump comprises a pump body, an explosion-proof column, a release ring and a sealing piece, wherein the pump body is provided with a pump shell and a volute arranged in the pump shell, a first pressure relief hole is formed in the pump shell, a second pressure relief hole is formed in the volute, and the first pressure relief hole is aligned with the second pressure relief hole; the explosion-proof column is inserted into the first pressure relief hole and the second pressure relief hole; the release ring is clamped between the pump shell and the volute, sleeved on the middle part of the explosion-proof column and fixedly connected with the explosion-proof column; the sealing member is arranged on the release ring or the explosion-proof column to seal at least the first pressure relief hole.
In combination with the above technical solution, in one possible implementation manner, the release ring and the sealing element are in a split structure or an integral structure; the explosion-proof column and the release ring are of an integrated structure or a split structure.
In combination with the above technical solution, in one possible implementation, the sealing member comprises sealing rings located at both sides of the release ring; the junction of release ring and explosion-proof post is equipped with the indent.
In combination with the above technical solution, in one possible implementation manner, a protection cover is provided outside the first pressure relief hole, and the protection cover at least partially shields the first pressure relief hole.
In combination with the above technical scheme, in a possible implementation manner, the protection cover comprises a mounting seat, an impact-resistant shell and a recoil guide plate, wherein the mounting seat is connected with the pump shell, the impact-resistant shell is arranged on the mounting seat and covers the outside of the first pressure relief hole, the side part of the impact-resistant shell is provided with a discharge outlet, and the recoil guide plate is arranged in the discharge outlet and is obliquely arranged inwards.
In combination with the above technical scheme, in a possible implementation manner, the inside buffering rubber shell that is equipped with in impact-resistant casing top is equipped with the guard plate towards one side of first pressure release hole to buffering rubber shell, and buffering rubber shell inside is equipped with the cavity, is equipped with viscous fluid and strikes the ball in the cavity.
In combination with the above technical solution, in one possible implementation manner, the explosion-proof column is of a frustum-shaped structure, and the diameter of one end of the first pressure relief hole is larger than that of the second pressure relief hole, and the shape of the second pressure relief hole is matched with the shape of the explosion-proof column.
In combination with the above technical solution, in one possible implementation manner, the first pressure relief hole is an inverted cone hole, a diameter of an end of the inverted cone hole facing the second pressure relief hole is larger than a diameter of an end facing away from the second pressure relief hole, and a diameter of an end of the inverted cone hole facing the second pressure relief hole is smaller than an outer diameter of the release ring, and the sealing member includes a space occupying rubber sleeve filled between the first pressure relief hole and the explosion-proof column; the space occupying rubber sleeve is of a cap-shaped structure and is sleeved at one end of the explosion-proof column positioned in the first pressure relief hole; one end of the explosion-proof column positioned in the first pressure relief hole is connected with the occupying rubber sleeve through bonding and/or concave-convex structures.
In combination with the above technical solution, in one possible implementation manner, the second pressure relief hole is located at an upper portion of one side of the volute.
In combination with the above technical solution, in one possible implementation manner, an end of the explosion-proof column located in the second pressure relief hole is provided with a wear-resistant structure, and the wear-resistant structure is a structure formed by connecting and compounding with a wear-resistant member or a structure formed by quenching treatment.
The safe explosion-proof slurry pump provided by the application has the beneficial effects that: compared with the prior art, the application has the advantages that the pressure release channels are directly formed on the pump shell and the volute through the matching of the first pressure release hole and the second pressure release hole on the pump body and the explosion-proof column, the release ring and the sealing piece, the pressure release channels are blocked by the explosion-proof column, the release ring and the sealing piece during normal operation, and the release ring and the explosion-proof column are broken when the internal pressure of the pump body is overlarge, so that the pressure release channels are opened, the volute can be directly released outwards, the pressure release is timely without delay, the timeliness is higher, and the slurry pump can not be influenced by vibration, blockage and the like during long-term operation, and is quite reliable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a safe explosion-proof slurry pump according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the structure of the explosion post and the release ring of the safety explosion-proof slurry pump according to an embodiment of the present application;
fig. 3 is a schematic cross-sectional structural view of an explosion-proof column and a protective cover of a safety explosion-proof slurry pump according to another embodiment of the present application, in which arrows indicate liquid flow directions.
Wherein, each reference sign is as follows in the figure:
10. a pump housing; 11. a first pressure relief vent;
20. a volute; 21. a second pressure relief vent;
30. an explosion-proof column;
40. a release ring; 41. a concave groove;
51. a seal ring; 52. occupying the gum cover;
61. a mounting base; 62. an impact resistant housing; 63. a recoil guide plate; 64. a discharge port;
65. buffering the rubber shell; 66. a protection plate; 67. a viscous fluid; 68. and (5) striking the ball.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the described embodiments are only some, but not all, embodiments of the present application, and that the specific embodiments described herein are intended to be illustrative of the present application and not limiting. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be further noted that the drawings and embodiments of the present application mainly describe the concept of the present application, and on the basis of the concept, some specific forms and arrangements of connection relations, position relations, power units, power supply systems, hydraulic systems, control systems, etc. may not be completely described, but those skilled in the art may implement the specific forms and arrangements described above in a well-known manner on the premise of understanding the concept of the present application.
When an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
The terms "inner" and "outer" refer to the inner and outer relative to the outline of each component itself, and the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. refer to the orientation or positional relationship as shown based on the drawings, merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" means two or more, and the meaning of "a number" means one or more, unless specifically defined otherwise.
The safe explosion-proof slurry pump provided by the application is now described.
As shown in fig. 1 and 2, a first embodiment of the present application provides a safe explosion-proof slurry pump, which comprises a pump body, an explosion-proof column 30, a release ring 40 and a sealing member, wherein the pump body is provided with a pump shell 10 and a volute 20 arranged in the pump shell 10, a first pressure relief hole 11 is arranged on the pump shell 10, a second pressure relief hole 21 is arranged on the volute 20, and the first pressure relief hole 11 is aligned with the second pressure relief hole 21; the explosion-proof column 30 is inserted into the first pressure relief hole 11 and the second pressure relief hole 21; the release ring 40 is clamped between the pump shell 10 and the volute 20, sleeved on the middle part of the explosion-proof column 30 and fixedly connected with the explosion-proof column 30; a seal is provided on the release ring 40 or the explosion proof column 30 to seal at least the first pressure relief hole 11.
During production, the first pressure relief hole 11 and the second pressure relief hole 21 are directly formed in the pump shell 10 and the volute 20, and the explosion-proof column 30 and the release ring 40 are prepared according to the required size; during assembly, the pump casing 10 is assembled on the volute casing 20, and meanwhile, the explosion-proof column 30 and the release ring 40 are installed, so that one end of the explosion-proof column 30 penetrates into the first pressure relief hole 11, the other end penetrates into the second pressure relief hole 21, the release ring 40 abuts against the pump casing 10, and the sealing piece seals the first pressure relief hole 11.
When in use, the explosion-proof column 30 is blocked in the second pressure relief hole 21 under the limit action of the release ring 40; once the pipe is blocked, the pressure in the volute 20 rapidly rises and acts on the joint of the explosion-proof column 30 and the release ring 40 through the explosion-proof column 30, after the pressure is greater than the breaking pressure of the release ring 40, the joint of the explosion-proof column 30 and the release ring 40 breaks, the limitation of the release ring 40 is avoided, the explosion-proof column 30 is ejected from the first pressure relief hole 11 and the second pressure relief hole 21 under the action of the internal pressure of the pump, the first pressure relief hole 11 and the second pressure relief hole 21 form a pressure relief channel, and direct pressure relief is performed.
Compared with the prior art, the safe explosion-proof slurry pump provided by the embodiment has the advantages that the first pressure relief hole 11 and the second pressure relief hole 21 in the pump body and the explosion-proof column 30, the release ring 40 and the sealing element are matched, so that a pressure relief channel is directly formed in the pump shell 10 and the volute 20, the explosion-proof column 30, the release ring 40 and the sealing element plug the pressure relief channel in normal operation, the release ring 40 and the explosion-proof column 30 are broken when the internal pressure of the pump body is overlarge, the pressure relief channel is opened, the volute 20 is directly and outwardly depressurized, the pressure relief is timely and delay-free, the timeliness is higher, and the slurry pump is not influenced by vibration, blockage and the like in long-term operation.
As shown in fig. 1 to 3, a specific embodiment of the present application provided on the basis of the first embodiment is as follows:
the release ring 40 and the seal may be of unitary construction, i.e., the release ring 40 may be an interference fit with the volute 20 through its own material selection to effect sealing, or the release ring 40 may be a seal fixedly attached to the explosion proof post 30.
The release ring 40 and the sealing member may also be of a split structure, and in particular, the sealing member includes sealing rings located at both sides of the release ring 40 so as to seal between the explosion-proof column 30 and the second pressure relief hole 21, thereby avoiding leakage. The sealing element can be an elastic sealing ring which is sealed by means of elasticity, and also can be a sealing ring which is made of special materials capable of expanding when meeting water.
The explosion proof post 30 and the release ring 40 may be of an integrally formed construction. Specifically, the explosion-proof column 30 and the release ring 40 may be integrally cast metal castings or integrally sintered wear-resistant ceramic components, and specifically, the materials of the pump casing 10 and the volute 20 may be selected to ensure that the wear resistance of the explosion-proof column 30 is suitable for the volute 20 and the impact resistance is suitable for the volute 20.
The explosion-proof column 30 and the release ring 40 may be in a separate structure, and fixedly connected by bonding, clamping, fastening, or the like.
The connection part of the release ring 40 and the explosion-proof column 30 is provided with a concave groove 41, the sealing element is filled in the concave groove 41, and the fracture pressure of the release ring 40 is adjusted through the depth, the size and the like of the concave groove 41. The recess 41 may be manufactured by turning or grinding after the release ring 40 and the explosion proof post 30 are manufactured.
The second pressure relief hole 21 is positioned at the upper part of one side of the volute 20, so that when the impeller of the pump body rotates, liquid and solid particles in the liquid can be prevented from directly impacting the second pressure relief hole 21, impact on the second pressure relief hole 21 is reduced, damage possibility is reduced, meanwhile, solid particles in liquid conveyed during pipeline blockage can be settled to a certain extent, and the second pressure relief hole 21 is arranged at the upper part of the volute 20, so that the possibility that the solid particles block the second pressure relief hole 21 can be reduced; and meanwhile, the assembly is convenient.
The end of the explosion-proof column 30 in the second pressure relief hole 21 is provided with a wear-resistant structure, and the wear-resistant structure is formed by connecting and compounding with a wear-resistant member or is formed by quenching and other processes. This may facilitate the improvement of the wear resistance of the explosion proof column 30 when in use.
As shown in fig. 3, a specific embodiment of the present application provided on the basis of the first embodiment is as follows:
the outside of first pressure release hole 11 is equipped with the protection casing, and the protection casing at least partially shelters from first pressure release hole 11 to kinetic energy is too big when avoiding explosion-proof post 30 blowout, produces harm to nearby personnel and equipment nearby. Whether the protective cover is provided or not can be determined according to the danger of the orientation of the first relief hole 11.
The protection casing includes mount pad 61, anti-impact casing 62 and recoil baffle 63, and mount pad 61 is connected with pump case 10, and anti-impact casing 62 establishes on mount pad 61, and the cover is established in first pressure release hole 11 outsidely to resist the impact of spun explosion-proof post 30 and liquid, anti-impact casing 62 lateral part is equipped with discharge port 64, and recoil baffle 63 establishes in discharge port 64, and the setting of inwards slope is in order to guide the liquid that is intercepted by anti-impact casing 62 to inwards first pressure release hole 11 direction recoil, with just dashing the liquid impact energy dissipation of first pressure release hole 11. Specifically, the impact resistant housing 62 may be constructed in the shape of a spherical shell structure, a square shell dome structure, or the like, which are formed of a single material or a composite material, to secure impact resistance. Meanwhile, in order to release pressure smoothly, the size of the discharge port 64 is larger than that of the explosion-proof column 30, so that the explosion-proof column 30 can be discharged smoothly.
The inside buffering rubber shell 65 that is equipped with in impact resistance housing 62 top, the buffering rubber shell 65 is equipped with guard plate 66 towards one side of first pressure release hole 11, and buffering rubber shell 65 inside is equipped with the cavity, is equipped with viscous fluid 67 and impact ball 68 in the cavity. Such a structure can play a role in buffering and dissipating energy, resists impact through the protection plate 66, and transmits part of impact to the viscous fluid 67 and the impact ball 68 in the buffering rubber shell 65, so that the impact ball 68 moves back and forth in the viscous fluid 67 to convert mechanical energy into internal energy. Specifically, the viscous fluid 67 may be a shear liquefied fluid, which is one of non-newtonian fluids, and is in a solid or semi-solid state in a natural state, and after being stressed, the viscous fluid becomes a liquid state, so that the energy absorption effect is good.
The explosion-proof column 30 is of a frustum-shaped structure, the diameter of one end of the first pressure relief hole 11 is larger than that of the second pressure relief hole 21, and the shape of the second pressure relief hole 21 is matched with that of the explosion-proof column 30. Therefore, when the pipe is blocked, the explosion-proof column 30 is not easy to be blocked, the explosion-proof column can be sprayed out of the first pressure relief hole 11 more easily, and the big end of the explosion-proof column 30 is backwards sprayed out, so that the harm to nearby personnel and equipment is reduced. Specifically, the taper of the explosion proof post 30 is preferably 0.5-5 °.
The first pressure release hole 11 is an inverted conical hole, the diameter of the end of the inverted conical hole facing the second pressure release hole 21 is larger than the diameter of the end facing away from the second pressure release hole 21, and the diameter of the end of the inverted conical hole facing the second pressure release hole 21 is smaller than the outer diameter of the release ring 40. The first pressure release hole 11 is set to the installation that the explosion-proof post 30 can be made things convenient for to the back is supported to the release ring 40 on the first pressure release hole 11 on the one hand, on the other hand, release ring 40 can have more part atress for release ring 40 breaks more easily, release explosion-proof post 30, promote sensitivity and the validity of response, remain the unnecessary part on explosion-proof post 30 after release ring 40 fracture and still probably block on first pressure release hole 11 simultaneously, further energy dissipation to explosion-proof post 30 has too big kinetic energy when avoiding explosion-proof post 30 blowout.
The seal includes a placeholder sleeve 52 filled between the first pressure relief vent 11 and the explosion vent 30.
The space between the first pressure relief hole 11 and the explosion-proof column 30 can be fully occupied by the space occupying rubber sleeve 52 through elasticity, vibration abrasion and noise are avoided between the first pressure relief hole 11 and the explosion-proof column 30, and certain energy dissipation effect can be achieved in the spraying process of the explosion-proof column 30 after the release ring 40 is broken.
Specifically, the space occupying rubber sleeve 52 is of a cap-shaped structure and is sleeved at one end of the explosion-proof column 30 positioned in the first pressure relief hole 11; one end of the explosion-proof column 30 positioned in the first pressure relief hole 11 is connected with the space occupying rubber sleeve 52 through bonding and/or concave-convex structure. Therefore, the connectivity of the space-occupying rubber sleeve 52 and the explosion-proof column 30 can be increased, when the connection strength of the space-occupying rubber sleeve 52 and the explosion-proof column 30 is high enough, the space-occupying rubber sleeve 52 can be torn by the explosion-proof column 30 in a spraying mode, so that the kinetic energy of the explosion-proof column 30 is greatly reduced, the residual space-occupying rubber sleeve 52 after the explosion-proof column 30 is sprayed is attached to the explosion-proof column 30, a certain buffering effect can be achieved, and the harm of the explosion-proof column 30 to nearby personnel and equipment in a spraying mode is reduced.
Meanwhile, the space occupying rubber sleeve 52 and the sealing ring 51 can be of the same structure or an integral structure, so that the production and the installation are convenient.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (10)
1. A safety explosion-proof slurry pump, comprising:
the pump body is provided with a pump shell (10) and a volute (20) arranged in the pump shell (10), a first pressure relief hole (11) is formed in the pump shell (10), a second pressure relief hole (21) is formed in the volute (20), and the first pressure relief hole (11) is aligned with the second pressure relief hole (21);
the explosion-proof column (30) is inserted into the first pressure relief hole (11) and the second pressure relief hole (21);
the release ring (40) is clamped between the pump shell (10) and the volute (20), sleeved in the middle of the explosion-proof column (30) and fixedly connected with the explosion-proof column (30);
a seal provided on the release ring (40) or the explosion-proof column (30) to seal at least the first pressure relief hole (11);
during normal operation, the explosion-proof column (30), the release ring (40) and the sealing piece plug the pressure release channel, and when the internal pressure of the pump body is too high, the release ring (40) and the explosion-proof column (30) are broken, so that the pressure release channel is opened, and the inside of the volute (20) can be directly released outwards;
the first pressure relief hole (11) is an inverted conical hole, the diameter of one end of the inverted conical hole facing the second pressure relief hole (21) is larger than the diameter of one end of the inverted conical hole facing away from the second pressure relief hole (21), and the diameter of one end of the inverted conical hole facing the second pressure relief hole (21) is smaller than the outer diameter of the release ring (40); the first pressure relief hole (11) is set to be the installation that the explosion-proof post (30) can be made things convenient for on the one hand to the back is supported on first pressure relief hole (11) to on the other hand release ring (40), makes release ring (40) fracture more easily, releases explosion-proof post (30), and the unnecessary part that remains on explosion-proof post (30) after release ring (40) fracture can also block on first pressure relief hole (11) simultaneously, further dissipates energy to explosion-proof post (30).
2. The safety explosion-proof slurry pump of claim 1, wherein: the release ring (40) and the seal are of a split or integral construction; the explosion-proof column (30) and the release ring (40) are of an integrated structure or a split structure.
3. The safety explosion-proof slurry pump of claim 1, wherein: the sealing element comprises sealing rings (51) positioned at two sides of the release ring (40); the connection part of the release ring (40) and the explosion-proof column (30) is provided with a concave groove (41).
4. The safety explosion-proof slurry pump of claim 1, wherein: the outside of first pressure release hole (11) is equipped with the protection casing, the protection casing is at least partly sheltered from first pressure release hole (11).
5. The safety explosion-proof slurry pump of claim 4, wherein: the protection casing includes mount pad (61), anti-impact shell (62) and recoil baffle (63), mount pad (61) with pump case (10) are connected, anti-impact shell (62) are established on mount pad (61), and the cover is established outside first pressure release hole (11), anti-impact shell (62) lateral part is equipped with discharge port (64), recoil baffle (63) are established in discharge port (64), and inwards slope sets up.
6. The safety explosion-proof slurry pump of claim 5, wherein: the anti-impact rubber is characterized in that a buffer rubber shell (65) is arranged on the inner side of the top of the anti-impact shell (62), a protection plate (66) is arranged on one side, facing the first pressure relief hole (11), of the buffer rubber shell (65), a cavity is formed in the buffer rubber shell (65), and a viscous fluid (67) and an impact ball (68) are arranged in the cavity.
7. The safety explosion-proof slurry pump of claim 1, wherein: the explosion-proof column (30) is of a frustum-shaped structure, the diameter of one end of the first pressure relief hole (11) is larger than that of the second pressure relief hole (21), and the shape of the second pressure relief hole (21) is matched with the shape of the explosion-proof column (30).
8. The safety explosion-proof slurry pump of claim 7, wherein: the sealing element comprises a space occupying rubber sleeve (52) filled between the first pressure relief hole (11) and the explosion-proof column (30); the space occupying rubber sleeve (52) is of a cap-shaped structure and is sleeved at one end of the explosion-proof column (30) positioned in the first pressure relief hole (11); one end of the explosion-proof column (30) positioned in the first pressure relief hole (11) is connected with the occupying rubber sleeve (52) through bonding and/or a concave-convex structure.
9. The safety explosion-proof slurry pump of claim 1, wherein: the second pressure relief hole (21) is positioned at the upper part of one side of the volute (20).
10. The safety explosion-proof slurry pump of claim 1, wherein: and one end of the explosion-proof column (30) positioned in the second pressure relief hole (21) is provided with a wear-resistant structure, and the wear-resistant structure is a structure formed by connecting and compounding the wear-resistant structure with a wear-resistant member or a structure formed by quenching treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310882213.0A CN116641896B (en) | 2023-07-18 | 2023-07-18 | Safe explosion-proof sediment stuff pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310882213.0A CN116641896B (en) | 2023-07-18 | 2023-07-18 | Safe explosion-proof sediment stuff pump |
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| Publication Number | Publication Date |
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| CN116641896A CN116641896A (en) | 2023-08-25 |
| CN116641896B true CN116641896B (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310882213.0A Active CN116641896B (en) | 2023-07-18 | 2023-07-18 | Safe explosion-proof sediment stuff pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119308853B (en) * | 2024-12-16 | 2025-03-18 | 河北技投机械设备有限公司 | Explosion-proof slurry pump with pressure release structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1791754A (en) * | 2003-05-23 | 2006-06-21 | 威尔沃尔曼有限公司 | Pressure relief arrangement for a pump |
| CN208619364U (en) * | 2018-07-15 | 2019-03-19 | 金谷唐科技(天津)有限公司 | A kind of abrasion resistant type silt particle pump installation |
| CN211605330U (en) * | 2020-03-03 | 2020-09-29 | 广西华政新能源科技有限公司 | Explosion-proof lithium ion battery |
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2023
- 2023-07-18 CN CN202310882213.0A patent/CN116641896B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1791754A (en) * | 2003-05-23 | 2006-06-21 | 威尔沃尔曼有限公司 | Pressure relief arrangement for a pump |
| CN208619364U (en) * | 2018-07-15 | 2019-03-19 | 金谷唐科技(天津)有限公司 | A kind of abrasion resistant type silt particle pump installation |
| CN211605330U (en) * | 2020-03-03 | 2020-09-29 | 广西华政新能源科技有限公司 | Explosion-proof lithium ion battery |
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| CN116641896A (en) | 2023-08-25 |
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