CN206801683U - A kind of expansion tank overflow preventing lid - Google Patents

Abstract

A kind of expansion tank overflow preventing lid, including upper cover plate, lower swivel nut are the utility model is related to, the upper cover plate, lower swivel nut are fixedly connected；Upper cover plate is provided with least one eliminator plate, and lower swivel nut is provided with the corresponding groove that blocks water, is blocked water described in the eliminator plate insertion in groove, return port is provided with the inside of the groove that blocks water, passage is provided with the outside of lower swivel nut；Expansion tank is inside and outside to be interconnected by the return port, passage and passage therebetween.The insertion of the utility model eliminator plate blocks water in groove, constitutes the barrier of water route spilling, has Anti-spill, while the passage on overflow preventing lid, connect the interior or exterior space of expansion tank, has lower drag drop, can be with the inside and outside pressure of Fast-Balance expansion tank；It is simple in construction, small volume；Make the state more balanced in pressure all the time inside expansion tank, avoid the problem of local area pressure oscillation is excessive inside expansion tank.

Description

A kind of expansion tank overflow preventing lid

Technical field

A kind of overflow preventing lid is the utility model is related to, is a kind of expansion tank overflow preventing lid specifically.

Background technology

In many mechanical systems in addition to useful work is done, it can attach and produce heat, be dispersed into caused heat for as early as possible outer In boundary's environment, commonly using circulating cooling system.Coolant in circulating cooling system flows through mechanical system acting part, by heat Amount is taken out of, and discharges heat in thermal component.Coolant is full of whole system, and volumetric expansion, pressure liter are raised with temperature Height, need to set expansion tank to absorb this demi-inflation volume, reducing cooling system pressure.When the cooling in circulating cooling system When liquid is reduced, the coolant in expansion tank flows to circulating cooling system, and the coolant in circulating cooling system is supplemented；When following During coolant volumetric expansion in ring cooling system, the coolant in circulating cooling system flows to expansion tank, makes cooling cyclic system Coolant pressure in system keeps stable.The lid of expansion tank needs to be specifically designed, except the coolant needed in holding expansion tank It is outer to be not easy spilling, it is also necessary to it is in communication with the outside, the pressure in equilibrium swelling case.

The overflow preventing lid of currently marketed expansion tank, lid are closed structure with expansion tank, and lid is opened required Opening pressure is higher, the pressure balance being easily destroyed in cooling recirculation system, makes the pressure wave of local area inside expansion tank It is dynamic larger.

The content of the invention

The purpose of this utility model is to provide a kind of overflow preventing lid of expansion tank, it have inside and outside expansion tank resistance drop compared with It is small, simple in construction, small volume, anti-overflow while, the characteristics of pressure in Fast-Balance expansion tank.

The utility model takes following technical scheme：

A kind of expansion tank overflow preventing lid, including upper cover plate 1, lower swivel nut 2, the upper cover plate 1, lower swivel nut 2 are fixedly connected；On Cover plate 1 is provided with least one eliminator plate 11, and lower swivel nut is provided with the corresponding groove 21 that blocks water, and the eliminator plate 11 inserts the groove that blocks water In 21, the inner side of groove 21 that blocks water is provided with return port 22, and the lower outside of swivel nut 2 is provided with passage 23；Expansion tank is inside and outside to pass through the backflow Hole 22, passage 23 and passage therebetween are interconnected.

Further, the eliminator plate 11 is identical with the central axis of upper cover plate 1 or close to identical.

Further, small―gap suture is left among the eliminator plate 11 and the groove 21 that blocks water, both central axis are overlapped or approached Overlap.

Further, the eliminator plate 11 and the corresponding quantity for blocking water groove 21 are arranged to multigroup.

Further, every group of eliminator plate 11, the groove 21 that blocks water are spaced equal angle.

Further, block water groove 21 and the lower intracavity inter-connection of swivel nut 2.

Further, the bottom in the outside of lower swivel nut 2 is provided with passage 23.

The beneficial effects of the utility model are：

1) during eliminator plate insertion blocks water groove, the barrier of water route spilling is constituted, there is Anti-spill, while on overflow preventing lid Passage, the interior or exterior space of expansion tank is connected, there is lower drag drop, can be with the inside and outside pressure of Fast-Balance expansion tank Power；

2) it is simple in construction, small volume.

3) make the state more balanced in pressure all the time inside expansion tank, avoid local area pressure inside expansion tank Fluctuate the problem of excessive.

4) smart structural design, while realize the function of Anti-spill and external and internal pressure rapid equalisation.

Brief description of the drawings

Fig. 1 is the profile of the utility model expansion tank overflow preventing lid.

Fig. 2 is the overall schematic of expansion tank and work system.

In figure, 1. overflow preventing lids, 2. expansion tanks, 3. connecting lines, 4. work systems.

Embodiment

The utility model is further illustrated with specific embodiment below in conjunction with the accompanying drawings.

As shown in figure 1, a kind of expansion tank overflow preventing lid, including upper cover plate 1, lower swivel nut 2, the upper cover plate 1, lower swivel nut 2 It is fixedly connected；Upper cover plate 1 is provided with least one eliminator plate 11, and lower swivel nut is provided with the corresponding groove 21 that blocks water, and the eliminator plate 11 is inserted Enter in the groove 21 that blocks water, the inner side of groove 21 that blocks water is provided with return port 22, and the lower outside of swivel nut 2 is provided with passage 23；Inside and outside expansion tank It is interconnected by the return port 22, passage 23 and passage therebetween.

In this embodiment, referring to Fig. 1, the eliminator plate 11 is identical with the central axis of upper cover plate 1 or close to identical.

In this embodiment, referring to Fig. 1, the eliminator plate 11 among the groove 21 that blocks water with leaving small―gap suture, both central shafts Line overlaps or close coincidence.

In this embodiment, the eliminator plate 11 and the corresponding quantity for blocking water groove 21 are arranged to multigroup.

In this embodiment, every group of eliminator plate 11, the groove 21 that blocks water are spaced equal angle.

In this embodiment, referring to Fig. 1, block water groove 21 and the lower intracavity inter-connection of swivel nut 2.

In this embodiment, it is provided with passage 23 referring to Fig. 1, the bottom in the lower outside of swivel nut 2.

One of system job applications example of overflow preventing lid is as shown in Figure 2.Overflow preventing lid is arranged on the top of expansion tank. Coolant is added with expansion tank, expansion tank is connected by connecting line and work system.Coolant is filled with job family System, when work system is run, system heat generation amount increase, coolant expands, and unnecessary coolant enters in expansion tank；Work as work The caloric value of system is reduced, and coolant is shunk, and coolant is back among work system by expansion tank again.Coolant in expansion tank Increase and decrease, cause the change of expansion tank external and internal pressure, overflow preventing lid described in the utility model can be with this pressure of Fast-Balance Change.

The insertion of the utility model eliminator plate blocks water in groove, constitutes the barrier of water route spilling, has Anti-spill, prevents simultaneously Overflow the passage covered, connects the interior or exterior space of expansion tank, has lower drag drop, can be with inside Fast-Balance expansion tank and outer The pressure in portion；It is simple in construction, small volume；Make the state more balanced in pressure all the time inside expansion tank, avoid expansion The problem of local area pressure oscillation is excessive inside case.

Claims (7)

1. A kind of 1. expansion tank overflow preventing lid, it is characterised in that：

   Including upper cover plate (1), lower swivel nut (2), the upper cover plate (1), lower swivel nut (2) are fixedly connected；

   Upper cover plate (1) is provided with least one eliminator plate (11), and lower swivel nut is provided with the corresponding groove (21) that blocks water, the eliminator plate (11) Blocked water described in insertion in groove (21), return port (22) is provided with the inside of the groove that blocks water (21), passage is provided with the outside of lower swivel nut (2) (23)；

   Expansion tank is inside and outside to be interconnected by the return port (22), passage (23) and passage therebetween.
2. 2. expansion tank overflow preventing lid as claimed in claim 1, it is characterised in that：In the eliminator plate (11) and upper cover plate (1) Mandrel line is identical or close to identical.
3. 3. expansion tank overflow preventing lid as claimed in claim 1, it is characterised in that：In the eliminator plate (11) and the groove (21) that blocks water Between leave small―gap suture, both central axis overlap or close to overlap.
4. 4. expansion tank overflow preventing lid as claimed in claim 1, it is characterised in that：The eliminator plate (11) and the corresponding groove that blocks water (21) quantity is arranged to multigroup.
5. 5. expansion tank overflow preventing lid as claimed in claim 4, it is characterised in that：Between every group of eliminator plate (11), the groove that blocks water (21) Every equal angle.
6. 6. expansion tank overflow preventing lid as claimed in claim 1, it is characterised in that：Block water groove (21) and lower swivel nut (2) inner chamber phase Connection.
7. 7. expansion tank overflow preventing lid as claimed in claim 1, it is characterised in that：Bottom on the outside of the lower swivel nut (2) is provided with Passage (23).