CN212742738U

CN212742738U - Compensation non-negative pressure energy cut-off guarantee device

Info

Publication number: CN212742738U
Application number: CN202021332645.2U
Authority: CN
Inventors: 叶浩挺; 汪永强; 何强辉; 王玉龙; 江仕强
Original assignee: Shanghai People Enterprise Pump Group Co ltd
Current assignee: Shanghai People Enterprise Pump Group Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-03-19
Anticipated expiration: 2030-07-09

Abstract

The utility model discloses a compensation does not have negative pressure energy and ends guarantee device relates to cities and towns life secondary pipe network water supply field, has the problem that the fault rate is high and pollute quality of water easily to current diaphragm type overhead tank, now proposes following scheme, and it includes a jar body, the top sealing connection of jar body has the upper cover, just the bottom sealing connection of the jar body has the low head, the bottom sealing connection of low head has into outlet pipe way, just outer flange upper end cover is installed to the bottom of advancing outlet pipe way, outer flange upper end cover's bottom is matchd and is installed outer flange lower end cover, just gulp valve and pressure sensor are installed to the bottom of outer flange lower end cover, pressure sensor's model is QDW 90A. The utility model discloses novel structure, and the device simple structure, convenient to use and safe and reliable, the effectual problem of having solved traditional diaphragm type overhead tank and having the fault rate height and pollute quality of water easily.

Description

Compensation non-negative pressure energy cut-off guarantee device

Technical Field

The utility model relates to a cities and towns life secondary pipe network water supply field especially relates to a compensation does not have negative pressure energy and ends guarantee device.

Background

At present, in the field of domestic town secondary water supply, a water tower water supply mode of a reservoir and a booster pump is basically extinct, a secondary pressurized water supply mode is mainly used, and the water tower water supply mode mainly comprises a water supply mode of the reservoir or a water storage tank and a variable-frequency speed-regulating booster unit, a pipe network superposed pressure non-negative pressure water supply mode is just started, and is gradually replacing other water supply modes to become a mainstream of the town secondary pressurized water supply system, the three water supply modes of a water storage tank and a water pump booster tank, a water storage tank or a stainless steel water tank and a constant-pressure variable-frequency water supply system and a pipe network superposed pressure non-negative pressure water supply mode have a common characteristic and need to be assisted by the pressure tank, and in the development process of the water supply modes, each water supply mode is necessarily matched with a diaphragm air pressure.

The interface of current diaphragm type overhead tank is the lug weld on the jar body, and the welding part rusts easily, can lead to leaking water and make the overhead tank inefficacy finally, and secondly the diaphragm can not change the extravagant cost, and secondly there is the defect in diaphragm technology, produces the defective products easily, and the diaphragm can take place the corrosion to pollute quality of water with water long-term contact, consequently in order to solve above-mentioned problem, we have proposed a compensation does not have negative pressure energy and ends the guarantee device.

Disclosure of Invention

The utility model provides a pair of compensation does not have negative pressure energy and ends guarantee device has solved traditional diaphragm type overhead tank and has had the problem that the fault rate is high and pollute quality of water easily.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a compensation non-negative pressure energy cut-off guarantee device comprises a tank body, wherein the top end of the tank body is hermetically connected with an upper end enclosure, the bottom end of the tank body is hermetically connected with a lower end enclosure, the bottom end of the lower end enclosure is hermetically connected with a water inlet and outlet pipeline, an outer flange upper end cover is arranged at the bottom end of the water inlet and outlet pipeline, an outer flange lower end cover is arranged at the bottom end of the outer flange upper end cover in a matched mode, an air supplementing valve and a pressure sensor are arranged at the bottom end of the outer flange lower end cover, the model of the pressure sensor is QDW90A, the air supplementing valve and the pressure sensor are communicated with the water inlet and outlet pipeline, an upper end limiting flange is arranged in the water inlet and outlet pipeline, a lower end limiting flange is arranged at the bottom end of the upper end limiting flange in a matched mode, a floating ball sealing gasket is arranged between the upper end, the floating ball pipeline leakage net is vertically upwards, and floating balls are sleeved in the floating ball pipeline leakage net in a sliding mode.

Preferably, the top of upper cover is installed the jack-up lug, the jack-up lug is symmetrical about the upper cover and distributes.

Preferably, an outer flange sealing gasket is arranged between the outer flange upper end cover and the outer flange lower end cover, first bolts are arranged between the outer flange upper end cover and the outer flange lower end cover, the first bolts penetrate through the outer flange upper end cover and the outer flange lower end cover, and the first bolts are distributed in an annular array relative to the outer flange upper end cover.

Preferably, the bottom fixedly connected with support of low head, just the support is annular array distribution about the low head, the foot hole has all been seted up to the bottom of support.

Preferably, a second bolt is installed between the upper end limiting flange and the lower end limiting flange, the second bolt penetrates through the upper end limiting flange and the lower end limiting flange, and the second bolt is distributed in an annular array mode relative to the upper end limiting flange.

Preferably, an elbow is installed at the bottom end of the lower end limiting flange, the bottom end of the elbow penetrates through the lower end cover of the outer flange, and an elbow flange is installed at the bottom end of the elbow.

The utility model has the advantages that:

1. a floating ball of the device upwards opens a channel along a track through buoyancy, so that the device is communicated with a water supply pipeline, the water hammer effect on equipment under the condition of water outlet pressure fluctuation or power failure is prevented, a water supply main pump does not need to be started at low flow, and the medium compressed gas of the device can directly convey liquid in a tank body to a user.

2. The device adopts pressure sensor real-time detection jar internal pressure, but the internal gas of real-time detection jar has or not leaked, and the device accessible aeration valve is timely make-up gas.

3. When municipal administration lacks water, the internal floater of jar descends along with the internal water level decline of jar and constantly descends, and until along floater pipeline net leak to the delivery port to it is airtight with the contact of floater seal gasket, prevent that the internal gas of jar from getting into user's pipe network and influencing water safety.

4. Along with the internal portion of jar liquid constantly descends, pressure sensor detects the internal portion pressure of jar and falls to initial condition, then reports control system and responds, and the protection of shutting down immediately prevents to aspirate municipal pipe network, influences municipal water supply safety.

In conclusion, the device has the advantages of simple structure, convenience in use, safety and reliability, and effectively solves the problems that the traditional diaphragm type pressure tank has high failure rate and is easy to pollute water.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a cross-sectional view of a-a in fig. 1 according to the present invention.

Fig. 3 is a bottom view of fig. 1 of the present invention.

Reference numbers in the figures: 1. hoisting lifting lugs; 2. an upper end enclosure; 3. a tank body; 4. a lower end enclosure; 5. a water inlet and outlet pipeline; 6. an outer flange upper end cover; 7. an outer flange sealing gasket; 8. an outer flange lower end cover; 9. a first bolt; 10. a support; 11. an elbow flange; 12. a foot hole; 13. an air supply valve; 14. a pressure sensor; 15. a floating ball pipeline leakage net; 16. a floating ball; 17. a second bolt; 18. an upper end limiting flange; 19. a floating ball sealing gasket; 20. a lower end limiting flange; 21. and (4) bending the pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a compensation non-negative pressure energy cut-off guarantee device comprises a tank body 3, an upper end enclosure 2 is hermetically connected to the top end of the tank body 3, a lower end enclosure 4 is hermetically connected to the bottom end of the tank body 3, a water inlet and outlet pipeline 5 is hermetically connected to the bottom end of the lower end enclosure 4, an outer flange upper end cover 6 is mounted at the bottom end of the water inlet and outlet pipeline 5, an outer flange lower end cover 8 is mounted at the bottom end of the outer flange upper end cover 6 in a matched manner, an air supply valve 13 and a pressure sensor 14 are mounted at the bottom end of the outer flange lower end cover 8, the pressure sensor 14 is of model QDW90A, the air supply valve 13 and the pressure sensor 14 are both communicated with the water inlet and outlet pipeline 5, an upper end limiting flange 18 is mounted in the water inlet and outlet pipeline 5, a lower end limiting flange 20 is mounted at the bottom end of the upper end limiting flange 18 in a matched manner, a floating ball pipeline leakage net 15 is installed at the top end of the upper end limiting flange 18, the floating ball pipeline leakage net 15 is vertically upward, a floating ball 16 is sleeved in the floating ball pipeline leakage net 15 in a sliding manner, a lifting lug 1 is installed at the top of the upper end enclosure 2, the lifting lugs 1 are symmetrically distributed around the upper end enclosure 2, an outer flange sealing gasket 7 is installed between an outer flange upper end cover 6 and an outer flange lower end cover 8, a first bolt 9 is installed between the outer flange upper end cover 6 and the outer flange lower end cover 8, the first bolt 9 penetrates through the outer flange upper end cover 6 and the outer flange lower end cover 8, the first bolt 9 is distributed around the outer flange upper end cover 6 in an annular array manner, a support 10 is fixedly connected to the bottom end of the lower end enclosure 4, the support 10 is distributed around the lower end enclosure 4 in an annular array manner, foot holes 12 are formed in the bottom end of the support 10, install second bolt 17 between upper end limit flange 18 and the lower extreme limit flange 20, second bolt 17 runs through in upper end limit flange 18 and lower extreme limit flange 20, just second bolt 17 is annular array distribution about upper end limit flange 18, elbow 21 is installed to lower extreme limit flange 20's bottom, just elbow 21's bottom runs through in outer flange lower extreme cover 8, elbow flange 11 is installed to elbow 21's bottom.

The working principle is as follows: the device is connected with a water supply pipeline through an elbow 21 and an elbow flange 11, the device has two working states according to different water supply quantities, when the water consumption is large, sufficient water pressure in the water supply pipeline jacks up a floating ball 16 through the elbow 21 and then enters a tank body 3, the space in the tank body 3 is reduced, and further air in the tank body 3 is compressed, the air has certain elasticity due to compressibility, so that water pressure impact in the water supply pipeline is buffered through the compression of the air, the water hammer impact is avoided to protect the stable and safe operation of the water supply device, the device limits the operation track of the floating ball 16 in the vertical direction through a floating ball pipeline leakage net 15, when the water consumption is small, the flow in the water supply pipeline is low, the water pressure is reduced, at the moment, the compressed gas pressure in the tank body 3 is higher than the water pressure in the water supply pipeline, at the moment, the water in the tank body 3 is extruded into the water supply pipeline through the expansion of the compressed gas, the water level in the tank body 3 is reduced simultaneously, so that the floating ball 16 falls down along the floating ball pipeline leakage net 15, when the water in the tank body 3 is completely drained, the floating ball 16 falls between an upper end limiting flange 18 and a lower end limiting flange 20 at the lowest end, and is sealed with the floating ball 16 through a floating ball sealing gasket 19, and the gas in the tank body 3 is prevented from entering a water supply pipeline;

the device be equipped with pressure sensor 14, the pressure in the real time monitoring jar body 3, when the pressure in the jar body 3 is not enough, aerify in jar body 3 through aeration valve 13, guarantee the device normal operating, jack-up lug 1 is installed on the top of the device, makes things convenient for the device hoist and mount, and the device main part adopts stainless steel, has guaranteed that quality of water safety does not receive the corrosion pollution.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a compensation does not have negative pressure energy and ends safeguard device, includes jar body (3), its characterized in that, the top sealing connection of jar body (3) has upper cover (2), and the bottom sealing connection of jar body (3) has low head (4), the bottom sealing connection of low head (4) has into outlet pipe way (5), just outer flange upper end cover (6) are installed to the bottom of advancing outlet pipe way (5), outer flange lower end cover (8) are installed in the bottom matching of outer flange upper end cover (6), and aeration valve (13) and pressure sensor (14) are installed to the bottom of outer flange lower end cover (8), pressure sensor (14) model is QDW90A, just aeration valve (13) and pressure sensor (14) all communicate in advancing outlet pipe way (5), advance outlet pipe way (5) in install upper end spacing flange (18), and the bottom of the upper end limiting flange (18) is provided with a lower end limiting flange (20) in a matching way, a floating ball sealing gasket (19) is arranged between the upper end limiting flange (18) and the lower end limiting flange (20) in a matching way, the top end of the upper end limiting flange (18) is provided with a floating ball pipeline leakage net (15), the floating ball pipeline leakage net (15) is vertically upwards, and a floating ball (16) is sleeved in the floating ball pipeline leakage net (15) in a sliding way.

2. The compensation non-negative-pressure energy cut-off guarantee device is characterized in that lifting lugs (1) are mounted at the top of the upper end enclosure (2), and the lifting lugs (1) are symmetrically distributed around the upper end enclosure (2).

3. The compensation non-negative-pressure energy cut-off guarantee device is characterized in that an outer flange sealing gasket (7) is arranged between the outer flange upper end cover (6) and the outer flange lower end cover (8), first bolts (9) are arranged between the outer flange upper end cover (6) and the outer flange lower end cover (8), the first bolts (9) penetrate through the outer flange upper end cover (6) and the outer flange lower end cover (8), and the first bolts (9) are distributed in an annular array relative to the outer flange upper end cover (6).

4. The compensation non-negative-pressure energy cut-off guarantee device is characterized in that a support (10) is fixedly connected to the bottom end of the lower seal head (4), the support (10) is distributed in an annular array relative to the lower seal head (4), and foot holes (12) are formed in the bottom end of the support (10).

5. The compensation non-negative-pressure energy cut-off guarantee device is characterized in that second bolts (17) are installed between the upper limiting flange (18) and the lower limiting flange (20), the second bolts (17) penetrate through the upper limiting flange (18) and the lower limiting flange (20), and the second bolts (17) are distributed in an annular array relative to the upper limiting flange (18).

6. The compensation non-negative-pressure energy cut-off guarantee device is characterized in that an elbow (21) is installed at the bottom end of the lower limiting flange (20), the bottom end of the elbow (21) penetrates through the lower end cover (8) of the outer flange, and an elbow flange (11) is installed at the bottom end of the elbow (21).