阅读说明：本技术 截止排空阀、水泵组件及冷水机组 (Cut-off emptying valve, water pump assembly and water chilling unit ) 是由 范风强 鲁涵锋 周江峰 王纪遇 于 2021-09-30 设计创作，主要内容包括：本发明提供了一种截止排空阀、水泵组件及冷水机组,涉及制冷设备技术领域,提供了一种新的用于水泵水路中的截止排空阀。该截止排空阀包括外固定基座、内侧紧固模块以及密封滑块,其中,内侧紧固模块连接在外固定基座上且两个以上密封滑块通过内侧紧固模块限位在外固定基座上,当调整内侧紧固模块与外固定基座的相对位置以解除对各密封滑块的完全限定时,能通过密封滑块之间的错位使得截止排空阀处于打开状态。本发明提供的截止排空阀可靠性好,承压能力强,具有更好的耐久性,更长的寿命。(The invention provides a stop emptying valve, a water pump assembly and a water chilling unit, relates to the technical field of refrigeration equipment, and provides a novel stop emptying valve used in a water pump waterway. The stop exhaust valve comprises an outer fixing base, an inner side fastening module and sealing sliding blocks, wherein the inner side fastening module is connected to the outer fixing base, more than two sealing sliding blocks are limited on the outer fixing base through the inner side fastening module, and when the relative position of the inner side fastening module and the outer fixing base is adjusted to remove the complete limitation of each sealing sliding block, the stop exhaust valve can be in an open state through dislocation between the sealing sliding blocks. The stop evacuation valve provided by the invention has the advantages of good reliability, strong bearing capacity, better durability and longer service life.)

1. A stop evacuation valve, characterized in that it comprises an external fixed base (1), an internal fastening module (2) and a sealing slider (3), wherein,

the inner side fastening module (2) is connected to the outer fixing base (1), more than two sealing sliding blocks (3) are limited on the outer fixing base (1) through the inner side fastening module (2), and when the relative position of the inner side fastening module (2) and the outer fixing base (1) is adjusted to remove the complete limitation of each sealing sliding block (3), the stop emptying valve can be in an open state through the dislocation between the sealing sliding blocks (3).

2. The stop emptying valve according to claim 1, wherein the sealing slider (3), the inner fastening module (2) and the outer fixing base (1) are sequentially sleeved from inside to outside, a limiting portion (4) is arranged on the outer circumferential side surface of the sealing slider (3), a limiting plate (5) with a hole is arranged on the outer fixing base (1), when the stop emptying valve is in a closed state, the limiting portion (4) is extruded between the limiting plate (5) and the inner fastening module (2), and the sealing sliders (3) are matched with each other to close a communication hole (51) in the limiting plate (5).

3. Shut-off valve according to claim 2, characterized in that the stop (4) is formed by the outer side of the sealing slider (3) projecting in a direction away from the central axis of the shut-off valve.

4. The shutoff evacuation valve according to claim 2, characterized in that the inner end surface of the inner fastening module (2) is in the shape of a circumferential side surface of a circular truncated cone, and when the shutoff evacuation valve is in a closed state, the limiting portion (4) is attached to the inner end surface of the inner fastening module (2).

5. Shut-off evacuation valve according to claim 2, characterized in that the outer fixed base (1) is screwed to the inner fastening module (2) and the inner fastening module (2) is a bolt piece with a through hole in the interior.

6. Shut-off evacuation valve according to claim 2, characterised in that the external fixed base (1) is a bolt piece with a through hole inside, the limiting plate (5) being arranged on the internal side of the external fixed base (1).

7. The shutoff evacuation valve according to any of claims 1-6, characterized in that the sealing sliders (3) are distributed along the circumferential direction to form a cylindrical structure, a groove (6) extending along the height direction of the sealing slider (3) is arranged on the inner side surface of each sealing slider (3), and the grooves (6) are communicated with each other.

8. The shut-off evacuation valve according to claim 7, characterized in that the number of sealing slides (3) is two and the two sealing slides (3) are identical in structure.

9. The shut-off evacuation valve according to claim 8, wherein the side of the sealing slider (3) that is in contact with the other sealing slider (3) is a mating side, and the lower edge of the mating side is chamfered; the groove (6) is formed in the matching side face, and a chamfer is formed in the lower edge formed by the groove (6) and the matching side face.

10. The shutoff evacuation valve according to any of claims 1 to 6, further comprising a traction ring (7), wherein a traction ring mounting hole is provided on an outer end surface of at least one of the sealing sliders (3), and the traction ring (7) is connected to the traction ring mounting hole.

11. The shut-off valve according to any of the claims 1 to 6, characterized in that the outer fixed base (1), the inner fastening module (2) and the sealing slider (3) are made of metal.

12. A water pump assembly, characterized in that it comprises a water pump and a shut-off valve according to any of claims 1 to 11, the external fixed base (1) of which is connected to the water pump.

13. A water chilling unit including a shutoff evacuation valve as claimed in any one of claims 1 to 11.

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a stop emptying valve, a water pump assembly and a water chilling unit.

Background

In the design of cooling water set, need be equipped with the water pump sometimes to different design requirements, in the water pump use, because the design of different producers is different, the evacuation mode is also different, if not the evacuation, will cause gaseous residue in the water route, take the cavitation erosion that the gas operation can cause the pump, make the operating efficiency variation of water pump, life-span reduction to because the existence of air can produce the air noise when in-service use.

The evacuation design that uses often at present, because water pump main part specification design and cost restriction, use the less valve body of specification usually, perhaps directly replace with the bolt and carry out the evacuation, some valve bodies damage easily in the use, and adopt this kind of evacuation design of bolt then have very high danger, carry out the discharge that the evacuation can be better assurance water route internal gas under the use, but the pressure differential that rivers produced this moment is very big, use the bolt difficult control, danger is high.

Disclosure of Invention

The invention aims to provide a stop emptying valve, a water pump assembly and a water chilling unit, and provides a novel stop emptying valve used in a water pump waterway. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a stop evacuation valve which comprises an outer fixed base, an inner side fastening module and sealing sliding blocks, wherein the inner side fastening module is connected to the outer fixed base, more than two sealing sliding blocks are limited on the outer fixed base through the inner side fastening module, and when the relative positions of the inner side fastening module and the outer fixed base are adjusted to remove the complete limitation on the sealing sliding blocks, the stop evacuation valve can be in an open state through the dislocation between the sealing sliding blocks.

Further, the sealing slide block, inboard fastening module and the external fixation base is established from inside to outside overlapping in proper order, there is spacing portion on the circumference lateral surface of sealing slide block, set up foraminiferous limiting plate on the external fixation base, work as when ending when the blowoff valve is in the closed condition, spacing portion extrusion is in the limiting plate with between the inboard fastening module and each sealing slide block cooperatees and closes the intercommunicating pore on the limiting plate.

Furthermore, the outer side surface of the sealing slide block protrudes towards the direction far away from the central shaft of the stop exhaust valve to form the limiting part.

Further, the inner end surface of the inner side fastening module is in a shape of a circumferential side surface of a circular truncated cone, and when the stop emptying valve is in a closed state, the limiting part is attached to the inner end surface of the inner side fastening module.

Further, the outer fixing base is in threaded connection with the inner fastening module, and the inner fastening module is a bolt piece with a through hole in the inner fastening module.

Further, the outer fixed base is a bolt piece with a through hole in the inner part, and the limiting plate is arranged on the inner side face of the outer fixed base.

Furthermore, each sealing slide block is distributed along the circumferential direction to form a columnar structure, a groove extending along the height direction of each sealing slide block is formed in the inner side face of each sealing slide block, and the grooves are communicated with each other.

Furthermore, the number of the sealing sliding blocks is two, and the two sealing sliding blocks have the same structure.

Furthermore, the side face, attached to the other sealing slide block, of the sealing slide block is a matching side face, and a lower edge of the matching side face is provided with a chamfer; the matching side face is provided with the groove, and the groove and a lower edge formed by the matching side face are provided with chamfers.

Furthermore, the stop evacuation valve further comprises a traction ring, a traction ring mounting hole is formed in the end face of the outer side of at least one sealing slide block, and the traction ring is connected with the traction ring mounting hole.

Furthermore, the outer fixing base, the inner fastening module and the sealing sliding block are all made of metal materials.

The invention provides a water pump assembly which comprises a water pump and a stop emptying valve, wherein an outer fixed base of the stop emptying valve is connected to the water pump.

The invention provides a water chilling unit which comprises the stop emptying valve.

The invention provides a novel stop emptying valve which has the following structure: the inner side fastening module is connected to the outer fixing base, more than two sealing sliding blocks are limited on the outer fixing base through the inner side fastening module, when the relative position of the inner side fastening module and the outer fixing base is adjusted to remove the complete limitation of each sealing sliding block, the stop exhaust valve can be in an open state through the dislocation between the sealing sliding blocks, namely the inlet end and the outlet end of the stop exhaust valve are communicated through the dislocation between the sealing sliding blocks, and therefore exhaust operation is carried out.

The preferred technical scheme of the invention can at least produce the following technical effects:

the design idea of the invention is that the bolt is used as the bolt, and the installation mode of the external fixing base is designed according to the bolt, so that the stop emptying valve provided by the invention has strong replaceability and is also convenient to install;

the outer fixed base, the inner side fastening module and the sealing slide block are all made of metal materials, so that the stop emptying valve is high in reliability and stronger in bearing capacity, and when the stop emptying valve is actually applied, the stop emptying valve is better in environmental adaptability and longer in service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a shutoff evacuation valve provided in accordance with an embodiment of the present invention;

FIG. 2 is an exploded view of a shutoff evacuation valve provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a shutoff evacuation valve provided in an embodiment of the present invention (shutoff evacuation valve in a closed state);

FIG. 4 is a schematic cross-sectional view of a shutoff evacuation valve provided in an embodiment of the present invention (the shutoff evacuation valve in an open state);

fig. 5 is a partially enlarged view of a portion a in fig. 4.

FIG. 1-external fixation base; 2-inside fastening module; 3-sealing the sliding block; 4-a limiting part; 5-a limiting plate; 6-groove; 7-traction ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Example 1:

for a stop emptying valve used in a water pump water path, when a unit water pump is started, air in the water path is emptied, cavitation of the water pump is avoided as much as possible, air noise generated inside the water path during operation is avoided as much as possible, and normal, reliable, efficient and safe operation of the unit is guaranteed.

The invention provides a novel stop emptying valve which has the following structure: comprises an outer fixed base 1, an inner side fastening module 2 and sealing slide blocks 3, wherein the inner side fastening module 2 is connected on the outer fixed base 1, more than two sealing slide blocks 3 are limited on the outer fixed base 1 through the inner side fastening module 2, the outer fixed base 1 is detachably connected on a water pump, each sealing slide block 3 can be completely in a limited state by adjusting the inner side fastening module 2, namely, the positions of the sealing sliding blocks 3 are fixed, at the moment, the stop and evacuation valve is in a closed state, when the relative position of the inner fastening module 2 and the outer fixed base 1 is adjusted to remove the complete limitation of each sealing sliding block 3, the stop and evacuation valve can be in an open state through the dislocation between the sealing sliding blocks 3, i.e. by the misalignment between the sealing sliders 3, the "inlet end" and the "outlet end" of the shut-off and emptying valve are put into communication, and at this time the inner fastening module 2 remains connected to the outer fixed base 1.

The connection relationship among the sealing slider 3, the inner fastening module 2, and the outer fixing base 1 is described as follows: referring to fig. 3 and 4, the sealing slide block 3, the inner side fastening module 2 and the outer fixing base 1 are sequentially sleeved from inside to outside, a limiting part 4 is arranged on the outer side surface of the sealing slide block 3 in the circumferential direction, and the limiting part 4 and the sealing slide block 3 can be of an integrated structure, namely, the outer side surface of the sealing slide block 3 protrudes towards the direction far away from the central shaft of the stop emptying valve to form the limiting part 4; the outer fixed base 1 is provided with a limiting plate 5 with a hole, and when the stop emptying valve is in a closed state, the limiting part 4 is extruded between the limiting plate 5 and the inner side fastening module 2, and the sealing slide blocks 3 are matched with each other to close the communication hole 51 in the limiting plate 5. The inner side fastening module 2 is in sealing fit with the outer fixed base 1, and the inner side surface of the inner side fastening module 2 is attached to the outer side surface of the sealing sliding block 3. Referring to fig. 3, the shut-off evacuation valve is shown in a closed state, in which the sealing sliders 3 are completely confined on the inner fastening module 2 and the outer fastening base 1, and the communication hole 51 of the limiting plate 5 is in a blocked state. Referring to fig. 3, when the inside fastening module 2 moves upward by a certain distance, the pressing of the upper stopper 4 of the sealing slider 3 is released, so that the sealing slider 3 can move in a direction parallel to the axis of the shutoff evacuation valve, and thus, the misalignment between the sealing sliders 3 can be achieved, and the communication between the communication hole 51 (inlet end) and the "outlet end" of the shutoff evacuation valve can be achieved. Referring to fig. 4, the shutoff evacuation valve is shown in an open state, and gas can be discharged from the shutoff evacuation valve through the communication hole 51 and the flow passage formed by the misaligned sealing slider 3. The stop emptying valve provided by the invention has the advantages of simple structure, convenience and rapidness in implementation and capability of being widely popularized and applied.

As an alternative embodiment, referring to fig. 3, the inner end surface of the inner fastening module 2 is in the shape of a circumferential side surface of a circular truncated cone, and when the shutoff evacuation valve is in a closed state, the limiting part 4 is in contact with the inner end surface of the inner fastening module 2 to form a sealing surface. In order to enhance the sealing effect, the inner end surface of the inner side fastening module 2 is designed to be a circumferential side surface of a circular truncated cone, so that the inner side fastening module 2 can be ensured to provide enough constraint for the sealing slider 3.

As an alternative embodiment, the external fixing base 1 and the internal fastening module 2 are screwed, the screwing is not only simple in connection, which facilitates adjusting the position of the internal fastening module 2 and the external fixing base 1, but also enables the connection portion of the internal fastening module 2 and the external fixing base 1 to form a seal, preferably, the internal fastening module 2 is a bolt piece with a through hole therein, the structure is simple, and the internal fastening module 2 can be rotated by a tool for closing and opening the evacuation valve.

As an alternative embodiment, the external fixing base 1 is a bolt member having a through hole therein, and the limit plate 5 is disposed on the inner side surface of the external fixing base 1. The design idea of the invention is based on bolts, and the mounting mode of the external fixed base 1 is designed by referring to the bolts, so that the stop emptying valve provided by the invention has strong replaceability and is also convenient to mount.

The sealing sliders 3 are specifically described as follows: each sealing slide block 3 is distributed along the circumferential direction to form a columnar structure, grooves 6 extending along the height direction of each sealing slide block 3 are formed in the inner side face of each sealing slide block 3, and the grooves 6 are communicated with each other. The opening and closing of the shut-off and emptying valve will be described by taking two sealing sliders 3 with the same structure as an example: referring to fig. 3, the shutoff evacuation valve is shown in a closed state, and the communication hole 51 is blocked by the bottoms of the two sealing sliders 3; the inner side fastening module 2 is rotated, so that the inner side fastening module 2 is screwed out to a certain length to the outer side, and can be rotated to the position shown in fig. 4, the complete limitation of the inner side fastening module 2 on the sealing slide block 3 is removed, one sealing slide block 3 is lifted up, as shown in fig. 4, at the moment, the lifted sealing slide block 3 does not block the communication hole 51 any more, the grooves 6 on the two sealing slide blocks 3 are staggered, so that gas can flow to the staggered positions at the bottoms of the two grooves 5 through the communication hole 51, then upwards flow through the grooves 5, and flow out of the stop emptying valve through the staggered positions (forming the outlet ends) at the tops of the two grooves 5, so that a larger flow channel can be ensured under the condition of smaller height difference (the height difference between the two sealing slide blocks 3), and the emptying is facilitated. When it is necessary again that the shut-off evacuation valve is in the closed state, the inside fastening module 2 is rotated in the reverse direction, so that the stopper portion 4 is squeezed between the stopper plate 5 and the inside fastening module 2.

In addition, referring to fig. 4, the length of the groove 6, i.e. the thickness between the bottom surface of the groove 6 and the lower end surface of the sealing slider 3 and the thickness between the top surface of the groove 6 and the upper end surface of the sealing slider 3, can be set reasonably according to actual conditions.

Referring to fig. 2 to 4, the assembly process of the shutoff evacuation valve provided by the present invention is as follows: firstly, two folded sealing sliding blocks 3 are placed in an outer fixing base 1, then an inner side fastening module 2 is inserted into the two sealing sliding blocks 3 and the inner side fastening module 2 is screwed into the outer fixing base 1 until the inner side fastening module 2 does not rotate, and a limiting part 4 on the sealing sliding block 3 is extruded between a limiting plate 5 and an inner end face of the inner side fastening module 2.

As an alternative embodiment, referring to fig. 4 and 5, the side surface of the sealing slider 3, which is attached to the other sealing slider 3, is a mating side surface, and a lower edge of the mating side surface is provided with a chamfer; the matching side face is provided with a groove 6, and the lower edge formed by the groove 6 and the matching side face is provided with a chamfer. In order to facilitate emptying, chamfers are specially arranged on the sealing sliding blocks 3, and flow channels among the sealing sliding blocks 3 can be enlarged when the sealing sliding blocks are dislocated. In addition, the upper edge of the matching side face can also be provided with a chamfer, and the upper edge formed by the groove 6 and the matching side face can also be provided with a chamfer.

In an optional embodiment, the stop evacuation valve further includes a traction ring 7, a traction ring mounting hole is provided on an outer end surface of at least one of the sealing sliders 3, and the traction ring 7 is connected to the traction ring mounting hole. The arrangement of the traction ring 7 is convenient for pulling the sealing slide block 3 outwards; for the simplicity of the structure, the traction ring 7 and the sealing slide block 3 are also in threaded connection; referring to fig. 4, the two sealing sliders 3 have the same structure, so that the two sealing sliders 3 are respectively provided with a traction ring mounting hole, but the stop emptying valve can be provided with one or more than two traction rings 7.

In an alternative embodiment, the outer fixing base 1, the inner fastening module 2 and the sealing slider 3 are all made of metal. The whole body of the stop emptying valve is made of metal, so that the reliability is high, the bearing capacity is higher, the environmental adaptability is better in actual application, and the service life is longer.

Example 2:

a water pump assembly comprises a water pump and a stop emptying valve, wherein an outer fixed base 1 of the stop emptying valve is connected to the water pump. For a stop emptying valve used in a water pump water path, when a unit water pump is started, air in the water path is emptied, cavitation of the water pump is avoided as much as possible, air noise generated inside the water path during operation is avoided as much as possible, and normal, reliable, efficient and safe operation of the unit is guaranteed.

Example 3:

a chiller comprising the shutoff evacuation valve described in embodiment 2.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.