CN217067932U

CN217067932U - Water hammer freezing prevention structure of pre-filter

Info

Publication number: CN217067932U
Application number: CN202220805470.5U
Authority: CN
Inventors: 曹开军; 董钰
Original assignee: Haining Beirui Environmental Protection Technology Co ltd
Current assignee: Haining Beirui Environmental Protection Technology Co ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-07-29
Anticipated expiration: 2032-04-08

Abstract

The utility model relates to a pre-filter's waterproof hammer structure that freezes, including the aircraft nose, the filter flask of taking inlet channel and exhalant canal and locating the filtering mechanism in the filter flask, filtering mechanism is equipped with the elastic buffer spare of an adaptation and/or aircraft nose internal fixation and is equipped with an elastic buffer spare, elastic buffer spare's volume deformation volume triangle V is greater than or equal to the 1-99% of the biggest volume of pre-filter. The structure of the pre-filter is optimized, and the pre-filter is installed, used and maintained, can prevent water hammer impact and freezing, and prolongs the service life of the pre-filter. When the instantaneous pressure of the front filter system greatly exceeds the normal pressure, the elastic buffer piece is compressed and deformed to reduce the impact force; when the frozen volume of water in the front filter expands, the elastic buffer part is compressed and deformed to make room for the expansion amount of the frozen volume, so that the pressure on the filter flask is reduced, and the service life of the filter flask is prolonged.

Description

Water hammer freezing prevention structure of pre-filter

Technical Field

The utility model relates to a leading filter's waterproof hammer structure that freezes belongs to water purification unit accessory technical field.

Background

The prior art pre-filter comprises: the machine head, a filter flask with the upper end connected with the machine head and a drainage ball valve connected with the lower end of the filter flask are provided with a filter screen framework in which a filter screen is sleeved on the outer wall. In the using process, water flows into a gap between the filter flask and the filter screen from a water inlet of the machine head, flows into the center of the filter screen framework after being filtered by the filter screen, and then flows to a water outlet of the machine head from the center of the filter screen framework, and the front filter is deeply inserted into thousands of households and high-grade hotels.

The water hammer is a phenomenon that large pressure fluctuation is caused and vibration is caused due to rapid change of fluid flow in a closed pipeline system (including a pump and a pre-filter). Also known as water hammer. The instantaneous pressure can greatly exceed the normal pressure and often produce destructive effects. In addition, the existing pre-filter is easy to crack and leak water due to the expansion of the internal water volume under the condition of low-temperature icing; the existing general products have no good solution, and can only remind a user to keep warm or use a filter flask with good toughness, but the filter flask can also crack and leak water after being expanded and deformed for many times.

The utility model aims at providing a structure is more optimized, the structure that freezes of the leading filter of easy industrialization realization's waterproof hammer. The water hammer impact can be prevented, the freezing can be prevented, and the service life of the front filter is prolonged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the not enough of leading filter of prior art, provide a leading filter's waterproof hammer structure that freezes. The structure of the pre-filter is optimized, and the pre-filter is installed, used and maintained, can prevent water hammer impact and freezing, and prolongs the service life of the pre-filter.

The utility model provides a technical scheme that its technical problem adopted is:

the anti-hammer freezing structure of the pre-filter comprises a machine head with a water inlet channel and a water outlet channel, a filter bottle and a filtering mechanism arranged in the filter bottle, wherein the filtering mechanism is provided with an adaptive elastic buffer piece and/or an elastic buffer piece is fixedly arranged in the machine head, and the volume deformation quantity delta V of the elastic buffer piece is more than or equal to 1-99% of the maximum volume of the pre-filter.

Preferably, the bottom end of the filtering mechanism is provided with an elastic buffer assembly cavity, the elastic buffer assembly is arranged in the elastic buffer assembly cavity and fixed through a filter element lower cover, the upper end and the lower end of the filter element lower cover are respectively provided with a water channel, the water channel on the upper portion is communicated with the raw water and the elastic buffer assembly cavity, and the channel on the lower portion is communicated with the sewage drainage channel.

Preferably, an elastic buffer piece supporting piece is arranged in the filter element lower cover, and the elastic buffer piece is suspended in the elastic buffer piece assembling cavity under the supporting of the elastic buffer piece supporting piece.

Preferably, a detachable structure is arranged between the lower cover of the filter element and the bottom end of the filtering mechanism and is fixed in a detachable mode.

Preferably, the detachable structure is a threaded structure or a clamping structure and is fixed through screwing or clamping.

Preferably, the machine head is provided with an elastic buffer assembly cavity at the side of the water outlet channel, and the elastic buffer is inserted into the elastic buffer assembly cavity.

Preferably, the bottom of the filter flask is provided with a sewage discharging cavity, a sewage discharging piece is arranged in the sewage discharging cavity, the sewage discharging piece is provided with a sewage discharging channel, and the sewage discharging channel is provided with a sewage discharging control valve.

Preferably, the elastic buffer part is made of TPE materials.

The elastic buffer part is of a hollow or hollowed-out structure.

The utility model has the advantages that: the structure of the pre-filter is optimized, and the pre-filter is installed, used and maintained, can prevent water hammer impact and freezing, and prolongs the service life of the pre-filter. When the instantaneous pressure of the front filter system greatly exceeds the normal pressure, the elastic buffer piece is compressed and deformed to reduce the impact force; when the frozen volume of water in the front filter expands, the elastic buffer part is compressed and deformed to make room for the expansion amount of the frozen volume, so that the pressure on the filter flask is reduced, and the service life of the filter flask is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a schematic structural diagram of the present invention;

fig. 4 is a schematic structural diagram of the present invention.

In the figure: 1. the filter comprises a machine head, 2, a filter flask, 3, a filtering mechanism, 4, a blowdown control valve, 5, a blowdown piece, 6, an elastic buffer piece, 7, a filter element lower cover, 8 and an elastic buffer piece supporting piece.

Detailed Description

The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.

As shown in fig. 1-4, the structure for preventing the water hammer of the pre-filter from freezing comprises a machine head 1 with a water inlet channel and a water outlet channel, a filter bottle 2 and a filtering mechanism 3 arranged in the filter bottle 2, wherein a sewage discharging cavity is arranged at the bottom of the filter bottle 2, a sewage discharging part 5 is arranged in the sewage discharging cavity, the sewage discharging part 5 is provided with a sewage discharging channel, the sewage discharging channel is provided with a sewage discharging control valve 4, an elastic buffer part 6 is fixedly arranged at the bottom end of the filtering mechanism 3, two ends of the elastic buffer part 6 are respectively and directly or indirectly abutted against the inner ends of the filtering mechanism 3 and the sewage discharging part 5, the volume deformation quantity delta V of the elastic buffer part 6 is more than or equal to 1-99% of the maximum volume of the pre-filter, and the proportion can be selected according to design specifications.

Specifically to the utility model discloses, 3 bottoms of filter mechanism are equipped with elastic buffer assembly chamber, and elastic buffer 6 assembles in elastic buffer assembly intracavity, and is fixed through filter core lower cover 7, both ends are equipped with water channel respectively about filter core lower cover 7, and the water channel on upper portion communicates former water and elastic buffer assembly chamber, the passageway intercommunication blowdown passageway of lower part.

It goes specifically to the utility model discloses, be equipped with springiness cushioning spare support member 8 in the filter core lower cover 7, springiness cushioning spare 6 is unsettled under springiness cushioning spare support member's support and locates the springiness cushioning spare assembly intracavity.

It specifically arrives the utility model discloses, be equipped with detachable construction between filter core lower cover 7 and 3 bottoms of filter mechanism, it is fixed through the dismantlement mode.

It is specific to arrive the utility model discloses, detachable construction is helicitic texture or joint structure, and is fixed through spiro union or joint.

It goes specifically to the utility model discloses, elastic buffer 6 adopts the processing of TPE material to form.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims. If the head 1 is internally and fixedly provided with an elastic buffer member, specifically, the head 1 is provided with an elastic buffer member assembling cavity at the water outlet channel side, and the elastic buffer member 6 is inserted in the elastic buffer member assembling cavity. Or, set up elastic buffer spare assembly chamber simultaneously in 3 bottoms of filter mechanism and the aircraft nose 1, elastic buffer spare assembly intracavity is the fixed elastic buffer spare 6 that sets up simultaneously to furthest prevents the impact that water hammer and freezing brought.

Claims

1. Leading filter's waterproof hammer structure that freezes, including aircraft nose, the filter flask of taking inlet channel and outlet channel and locate the filter mechanism in the filter flask, its characterized in that: the filtering mechanism is fixedly provided with an adaptive elastic buffer member and/or an elastic buffer member is fixedly arranged in the machine head, and the volume deformation quantity delta V of the elastic buffer member is more than or equal to 1-99% of the maximum volume of the prefilter.

2. The pre-filter water hammer resistant freezing structure according to claim 1, wherein: the filter mechanism bottom is equipped with elastic buffer spare assembly chamber, and elastic buffer spare assembles in elastic buffer spare assembly chamber, and is fixed through filter core lower cover, the upper and lower both ends of filter core lower cover are equipped with water channel respectively, and the water channel on upper portion communicates former water and elastic buffer spare assembly chamber, and the passageway intercommunication blowdown passageway of lower part.

3. The pre-filter water hammer resistant freezing structure according to claim 2, wherein: and an elastic buffer part supporting part is arranged in the filter element lower cover, and the elastic buffer part is suspended in the elastic buffer part assembling cavity under the support of the elastic buffer part supporting part.

4. The pre-filter water hammer resistant freezing structure according to claim 2, wherein: the filter element lower cover is fixed with the bottom end of the filtering mechanism in a detachable mode.

5. The pre-filter water hammer resistant freezing structure according to claim 4, wherein: the detachable structure is a threaded structure or a clamping structure and is fixed through screw connection or clamping.

6. The pre-filter water hammer resistant freezing structure according to claim 1, wherein: the machine head is provided with an elastic buffer assembly cavity at the side of the water outlet channel, and the elastic buffer is inserted into the elastic buffer assembly cavity.

7. The pre-filter water hammer resistant freezing structure according to claim 1, wherein: the elastic buffer part is made of TPE materials.

8. The pre-filter water hammer resistant freezing structure of claim 7, wherein: the elastic buffer part is of a hollow or hollowed-out structure.

9. The pre-filter water hammer resistant freezing structure according to claim 1, wherein: the bottom of the filter flask is provided with a sewage discharge cavity, a sewage discharge piece is arranged in the sewage discharge cavity, the sewage discharge piece is provided with a sewage discharge channel, and the sewage discharge channel is provided with a sewage discharge control valve.