CN103572805A - Negative-pressure blocking device for water supply pipe connected with water pump - Google Patents
Negative-pressure blocking device for water supply pipe connected with water pump Download PDFInfo
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- CN103572805A CN103572805A CN201310588890.8A CN201310588890A CN103572805A CN 103572805 A CN103572805 A CN 103572805A CN 201310588890 A CN201310588890 A CN 201310588890A CN 103572805 A CN103572805 A CN 103572805A
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- water supply
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- blocking device
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Abstract
The invention discloses a negative-pressure blocking device for a water supply pipe connected with a water pump, and belongs to the technical field of secondary pressurizing of a water supply system. The negative-pressure blocking device aims to overcome the defects that a water pump direct suction technology of an existing building water supply system influences normal water taking of surrounding building water supply systems, and sometimes water supply pipeline networks are polluted. The negative-pressure blocking device comprises a water storage tank, a water supply pipe and a water pump, a negative-pressure blocking device body is arranged between the water supply pipe and a suction opening of the water pump, the negative-pressure blocking device body is composed of an outer shell, a left cover and a right cover, a gap is formed between the left cover and the right cover, and a pressure bag is contained in an inner cavity formed by the left cover and the right cover. The negative-pressure blocking device is suitable for a building water supply system provided with a direct suction water pump.
Description
Technical field
The present invention relates to a kind of water supply system secondary pressurized technology, particularly relate to a kind of for being connected to the negative pressure block device of the feed pipe of suction pump.
Background technology
Since China's reform and opening-up, along with government continues to increase the investment of infrastructure; The city of current ， China, is that high building stands in great numbers everywhere, no matter is office premises, the office building that belongs to utilities building, still belongs to the esidential building building of civilian construction, is that tens meters, meter up to a hundred building are high easily.Meeting the feedwater requirement of so high floor, need to have very high water supply pressure, for huge public supply mains, is cannot provide, simultaneously also cannot bear so high hydraulic pressure.Therefore, current high level, the water supply system of super highrise building, all the scheme that adopts secondary pressurized: be generally first the tap water of public supply mains is introduced to reservoir or cut off in pond by feed pipe, then absorb water from pond with water pump, through the backward whole floor water supply of pressurization of water pump.The reservoir of founding a capital due to a lot of floors or to cut off pond be at one deck or basement, so just makes original hydraulic pressure of urban water supply and pond all be wasted lower than the geometry discrepancy in elevation potential energy on ground.Therefore, have the water supply system in many buildings from energy-conservation angle, the technology that adopts water pump directly to inhale from water supply line, can use the overwhelming majority in the energy originally slatterning like this.The straight adsorption technology of water pump, be that the suction water pipe of secondary pressurized water pump is directly received on the inlet tube of public supply mains, carry out pipeline water relay, on water supply inlet tube, hydraulic pressure just can be superimposed to secondary pressurized pumping line one end, thereby reduce water pump lift, reduced the energy consumption of water pump.But the straight adsorption technology of water pump also exists deficiency, because the water yield hydraulic pressure of public supply mains is in constantly fluctuation, it is not independent homeostasis that water supply network supplies water to the water supply system in a certain building, but to carry out in a region the comprehensive distribution of the hydraulic pressure water yield, water pump is directly inhaled very destructible water supply network in the hydraulic pressure water balance in a region, the powerful building water supply system of certain suction can have influence on the normal water intaking of its other building water supply system around, sometimes also the water source outside pipe network can be sucked to pipe network pipe network is polluted.
Summary of the invention
The object of this invention is to provide a kind ofly for being connected to the negative pressure block device of the feed pipe of suction pump, the straight adsorption technology existence of water pump that overcomes current building water supply system can affect the normal water intaking of building water supply system around and sometimes also can make the deficiencies such as water supply network is polluted.
The present invention is achieved by following technical proposals.
The present invention includes reservoir, feed pipe and water pump, between described feed pipe and described water pump intake, negative pressure block device is housed, described negative pressure block device is comprised of shell, left cover and right cover, between described left cover and described right cover, be provided with gap, in the inner chamber being formed by described left cover and described right cover, air pressure capsule be housed.Embodiments of the invention are first to allow described feed pipe to described reservoir water filling in prior art, the basis being absorbed water from described reservoir by described water pump again, from the suction pipe of described water pump, separate a bye-pass, after described negative pressure block device, be communicated with described feed pipe, the other end of described feed pipe, connects with public supply mains.Described negative pressure block device mainly relies on dress described air pressure capsule in the inner to work, described air pressure capsule is made by the good synthetic rubber of tightness, hydraulic pressure in described feed pipe is higher, current are when by described shell, described air pressure capsule shrinks in the inner chamber of described left cover and the formation of described right cover because hydraulic pressure makes it, current is not caused to any obstruction; Once the hydraulic pressure of described feed pipe reduces, under the suction of described water pump, hydraulic pressure in described shell can reduce, at this moment, described air pressure capsule just can expand, part utricule can stretch out from the gap location between described left cover and described right cover, gives the resistance of the current increase from flowing through between the periphery of described left cover, right cover and the inwall of described shell, consume described water pump negative pressure energy, make its unlikely water supply pipe valve that has influence on.If the hydraulic pressure in described shell continue to reduce, even occur negative pressure, described air pressure capsule can expand more until allow overhanging utricule be affixed on the inwall of described shell, the passage that the negative pressure that thoroughly blocking-up is produced by described water pump impacts water supply network.
In the present invention, due under normal conditions, water supply network inside maintains the suction negative pressure that enough malleations are resisted described water pump, so the chance that the described air pressure capsule of needs works seldom, but considering need be durable in use, for making the contact gear ratio at port edge of the utricule surface of described air pressure capsule and described left cover, right cover more smooth, utricule stretch out with retraction process in can not sustain damage, at the edge, inner end of described left cover, described right cover, be equipped with and lead capsule flange.Meanwhile, in order to make the utricule of described air pressure capsule have better seal and stability when being affixed on the inwall of described shell, on the inwall of the described shell of outside, gap between described left cover, right cover, be equipped with and hold Nang Quan.On the inwall of the described Nang Quan of holding, be shaped with the groove perpendicular with water (flow) direction.
Against existing technologies, the invention has the beneficial effects as follows:
Can effectively avoid the building water supply system that straight pulsating pump is housed on building water supply system around and the impact of water supply network.
Accompanying drawing explanation
Fig. 1 is the structural representation of negative pressure block device of the present invention, the system layout schematic diagram that Fig. 2 is the embodiment of the present invention, A-A cut-away view that Fig. 3 is Fig. 1.In figure: 1, reservoir, 2, feed pipe, 3, water pump, 4, negative pressure block device, 5, shell, 6, left cover, 7, right cover, 8, support, 9, air pressure capsule, 10, lead capsule flange, 11, hold Nang Quan.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the invention will be further described.
In the present invention, negative pressure block device 4 is critical components, due to the parts such as left cover 6, right cover 7 being housed in the inside of shell 5, for the flow of current throughput energy and feed pipe 2 is approached, so the diameter of shell 5 is larger than the nominal bore of feed pipe 2.Use material aspect: shell 5 can be cylinder iron, left cover 6 and right cover 7 available copper or stainless steel, support 8 should adopt stainless steel, leads capsule flange 10 and is connected as a single entity with left cover 6, right cover 7; Hold capsule circle 11 and should adopt softer material, as telfon plastic; Air pressure capsule 9 adopts high-air-tightness butyl rubber, the air of interior preliminary filling 0.02MPa gauge pressure.
Claims (3)
1. one kind for being connected to the negative pressure block device of the feed pipe of suction pump, comprise reservoir, feed pipe and water pump, it is characterized in that, between described feed pipe and described water pump intake, negative pressure block device is housed, described negative pressure block device is comprised of shell, left cover and right cover, between described left cover and described right cover, be provided with gap, in the inner chamber being formed by described left cover and described right cover, air pressure capsule be housed.
2. according to claim 1 a kind ofly it is characterized in that for being connected to the negative pressure block device of the feed pipe of suction pump, at the edge, inner end of described left cover, described right cover, be equipped with and lead capsule flange.
3. according to claim 1 a kind ofly it is characterized in that for being connected to the negative pressure block device of the feed pipe of suction pump, on the inwall of the described shell of outside, gap between described left cover, right cover, be equipped with and hold Nang Quan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588890.8A CN103572805A (en) | 2013-11-19 | 2013-11-19 | Negative-pressure blocking device for water supply pipe connected with water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588890.8A CN103572805A (en) | 2013-11-19 | 2013-11-19 | Negative-pressure blocking device for water supply pipe connected with water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103572805A true CN103572805A (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310588890.8A Pending CN103572805A (en) | 2013-11-19 | 2013-11-19 | Negative-pressure blocking device for water supply pipe connected with water pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN103572805A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288300A (en) * | 2020-03-02 | 2020-06-16 | 黄翔 | Flow control device of flow distribution facility with overheat protection function |
-
2013
- 2013-11-19 CN CN201310588890.8A patent/CN103572805A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288300A (en) * | 2020-03-02 | 2020-06-16 | 黄翔 | Flow control device of flow distribution facility with overheat protection function |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |
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| WD01 | Invention patent application deemed withdrawn after publication |