CN217078594U

CN217078594U - Secondary water supply water shortage and overpressure protection device

Info

Publication number: CN217078594U
Application number: CN202123351763.5U
Authority: CN
Inventors: 刘广; 方斌; 牛发钧; 蒋宣东
Original assignee: Lu'an Chengnan Water Supply Co ltd
Current assignee: Lu'an Chengnan Water Supply Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-29
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a secondary water supply lacks water, superpressure protection device relates to secondary water supply pipe design technical field. Including delivery pipe and protection mechanism, protection mechanism includes protective tube and first water inlet, first delivery port and pressure release mouth, and the protective tube is inside to be provided with resistance mechanism, and resistance mechanism includes fixed plate and carriage release lever, and the fixed plate sets up on the protective tube inner wall of pressure release mouth top, and is provided with the choked flow piece between carriage release lever lower extreme extends to pressure release mouth and the first delivery port, the choked flow piece carries out the resistance with pressure release mouth and first water inlet and first delivery port and separates, is provided with first flowmeter on the delivery pipe, is provided with flow monitoring mechanism between first flowmeter and the first water inlet. The utility model overcomes prior art's is not enough, can effectively play the effect that detects and protect to the lack of water and the superpressure of secondary water supply, pipeline and pump package's security when guaranteeing the secondary water supply.

Description

Secondary water supply water shortage and overpressure protection device

Technical Field

The utility model relates to a secondary water supply pipe designs technical field, especially relates to a secondary water supply lacks water, superpressure protection device.

Background

The design of city water supply pipe is the convenient big important factor of city water now to along with the design of city building high-rise, for the convenience of the user water of high floor mostly need set up secondary water supply system in high-rise building, traditional secondary water supply directly adopts supercharging equipment to come the running water pressure boost mostly, makes it can satisfy high-rise water supply pressure, but still has some problems in the in-service use process.

In the existing secondary water supply equipment, a certain pump set is generally adopted to pressurize supplied tap water, the pressure is unstable when a municipal pipe network supplies water, the subsequent operation strength of the pump set can also form difference, in order to prevent the pump set from causing waterless dry grinding of the water pump due to too low municipal pipe network pressure in the using process and damaging the water pump, or overpressure breakage of a pipeline caused by over-pressure operation of the water pump, a flow sensor is generally required to be arranged in the pipeline to feed back the condition inside the pipeline, so that the operation of the water pump is adjusted, but the flow sensor can be damaged or has detection errors in the actual use process, the water pump is easy to operate in an overload or non-operation condition, and great influence is brought to the actual pipeline safety and the convenience of secondary water supply.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of poor protective effect of the secondary water supply pipeline in the prior art and providing a secondary water supply water shortage and overpressure protection device.

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

a protection device for water shortage and overpressure of secondary water supply comprises a water supply pipe and a protection mechanism communicated with the water supply pipe, wherein the protection mechanism comprises a protection pipe and a first water inlet, a first water outlet and a pressure relief opening which are formed in the protection pipe, the first water inlet is arranged at the bottom of the protection pipe and communicated with the water supply pipe, the first water outlet is arranged at the bottom of one side of the protection pipe and communicated with an external water pipe, the pressure relief opening is arranged at the center of the other side of the protection pipe and communicated with a pressure relief tank arranged outside, a resistance mechanism is arranged inside the protection pipe and comprises a fixed plate fixed inside the protection pipe and a movable rod penetrating through the fixed plate, the fixed plate is arranged on the inner wall of the protection pipe above the pressure relief opening, the lower end of the movable rod extends to a position between the pressure relief opening and the first water outlet, and the flow blocking block separates the pressure relief opening from the first water inlet and the first water outlet in a resistance manner, and the flow blocking block is connected with the inner wall of the protection pipe in a sliding manner, the upper end of the movable rod extends to the position above the fixed plate and is provided with a guide plate, a protection spring is sleeved on the movable rod between the guide plate and the fixed plate, the water supply pipe is provided with a first flowmeter, and a flow monitoring mechanism is arranged between the first flowmeter and the first water inlet.

Preferably, a plurality of protection mechanisms connected in series are arranged in the device, a first water outlet of a previous protection mechanism is communicated with a first water inlet of a next protection mechanism in the series connection process, and a pressure relief opening in each protection mechanism is communicated with a pressure relief tank through a pressure relief pipe.

Preferably, the pressure relief pipe is provided with a second flow meter.

Preferably, the top end inside the protective tube is connected with a squeezing plate through a plurality of squeezing elastic pieces, a first pressure sensor is arranged above the guide plate, and the first pressure sensor and the squeezing plate squeeze each other.

Preferably, the upper end of the flow blocking block is rectangular, the lower end of the flow blocking block is hemispherical, and the side wall of the upper end of the flow blocking block is in sliding connection with the inner wall of the protective pipe.

Preferably, flow monitoring mechanism includes the second water inlet that intercommunication box, intercommunication box left end set up and the second delivery port that intercommunication box right-hand member set up, intercommunication box inside upper end central authorities are provided with the stopper, the stopper right side is provided with the spacing groove, spacing inslot portion is provided with second pressure sensors, the intercommunication box bottom of stopper lower extreme is provided with the deflector, deflector lower extreme and intercommunication box bottom torsional spring connection, the deflector upper end contacts with second pressure sensors.

Compared with the prior art, the utility model provides a secondary water supply lacks water, superpressure protection device possesses following beneficial effect:

1. through the setting of first water inlet and first delivery port in the protection mechanism, make the running water directly go into from first water inlet in the time of normal operating, first delivery port goes out, guarantee continuous supply, and the pressure release mouth, the fixed plate, the carriage release lever, the chock, the setting of guide plate is guaranteed when rivers pressure suddenly strengthens, water pressure makes progress to extrude the chock and gets into the pressure release jar through the pressure release mouth after, effectively slow down the pressure of water pressure to the pipeline, conveniently carry out the superpressure protection to the pipeline, and set up first pressure sensors on the guide plate, first pressure sensors response pressure can technical conduction signal in water pressure extrusion process, the convenience is adjusted the pump package, hoisting device's flexibility.

2. Through the box that communicates, the second water inlet, the second delivery port, the stopper, the spacing groove, second pressure sensors, the setting of deflector, make in the pipeline rivers velocity of flow drive the deflector when enough and deflect and make it keep away from second pressure sensors, and because second pressure sensors sets up and then can not receive rivers impact in the direction on rivers same side and cause the detection error, then deflector gyration and second pressure sensors extrusion when rivers flow is less, second pressure sensors adjusts the pump assembly after with pressure variation conduction, prevent the damage of pump package operation when there is no water.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model relates to a rationally, it is convenient to use, can effectively play the effect that detects and protect to the lack of water and the superpressure of secondary water supply, pipeline and pump package's security when guaranteeing the secondary water supply.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the protection mechanism of the present invention;

fig. 4 is the structure schematic diagram of the flow monitoring mechanism of the present invention.

In the figure: 1. a water supply pipe; 2. a protection mechanism; 201. a protective tube; 202. a first water inlet; 203. a first water outlet; 204. a pressure relief port; 205. a fixing plate; 206. a travel bar; 207. a flow choking block; 208. a guide plate; 209. a pressing plate; 210. extruding the elastic member; 211. a first pressure sensor; 212. a guard spring; 3. a flow monitoring mechanism; 301. a communication box; 302. a second water inlet; 303. a second water outlet; 304. a limiting block; 305. a limiting groove; 306. a second pressure sensor; 307. a deflection plate; 4. a pressure relief tank; 5. a first flow meter; 6. a pressure relief pipe; 7. a second flow meter.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-4, a secondary water supply water shortage and overpressure protection device comprises a water supply pipe 1 and a protection mechanism 2 communicated with the water supply pipe 1, wherein the protection mechanism 2 comprises a protection pipe 201 and a first water inlet 202, a first water outlet 203 and a pressure relief opening 204 which are formed in the protection pipe 201, the first water inlet 202 is arranged at the bottom of the protection pipe 201 and is connected with the water supply pipe 1 to be used for water inlet of the water pipe, the first water outlet 203 is arranged at the bottom of one side of the protection pipe 201 and is communicated with an external water pipe to be used for water outlet of tap water, the pressure relief opening 204 is arranged at the center of the other side of the protection pipe 201 and is communicated with a pressure relief tank 4 arranged outside, a resistance mechanism is arranged inside the protection pipe 201, the resistance mechanism comprises a fixing plate 205 fixed inside the protection pipe 201 and a moving rod 206 penetrating through the fixing plate 205, the fixing plate 205 is arranged on the inner wall of the protection pipe 201 above the pressure relief opening 204, a choke block 207 is arranged between the lower end of the movable rod 206 and the pressure relief port 204 and the first water outlet 203, the choke block 207 separates the pressure relief port 204 from the first water inlet 202 and the first water outlet 203 by resistance, when the water inlet pressure is too high, the water pressure impacts the choke block 207, so that the choke block 207 slides upwards along the inner wall of the protective tube 201 until the height of the choke block 207 exceeds the height of the pressure relief port 204, the water flow is divided from the pressure relief port 204, the pressure of tap water flowing out from the first water outlet 203 is reduced, and the purpose of protecting the water pipe is achieved, a guide plate 208 is arranged at the upper end of the movable rod 206 and extends above the fixed plate 205, a protective spring 212 is sleeved on the movable rod 206 between the guide plate 208 and the fixed plate 205, and the tap water is ensured not to flow out from the pressure relief port 204 when the water flow is normal, the water supply tube 1 is provided with the first flowmeter 5 for conveniently detecting the flow rate of the water flow, a flow monitoring mechanism 3 is arranged between the first flow meter 5 and the first water inlet 202, so that the detection accuracy is effectively guaranteed, and the pump set is prevented from being damaged due to the damage of the first flow meter 5 or errors caused by detection.

In order to further improve the pressure relief protection effect and prevent the problem of incomplete pressure relief of the single protection mechanism 2 with overlarge pressure, it is preferable that a plurality of protection mechanisms 2 connected in series are arranged in the device, the first water outlet 203 of the previous protection mechanism 2 is communicated with the first water inlet 202 of the next protection mechanism 2 in the series connection process, and the pressure relief port 204 of each protection mechanism 2 is communicated with the pressure relief tank 4 through the pressure relief pipe 6.

In order to monitor and calculate the amount of water entering the pressure relief tank 4 and prevent the water stored in the pressure relief tank 4 from being too much and failing to achieve the pressure relief effect, it is preferable that the pressure relief pipe 6 is provided with a second flow meter 7.

In order to flexibly detect the pressure result of excessive water pressure and timely transmit data to the pump unit to stop the pump unit or reduce the power of the pump unit, preferably, the top end inside the protective tube 201 is connected with a pressing plate 209 through a plurality of pressing elastic members 210, a first pressure sensor 211 is arranged above the guide plate 208, and the first pressure sensor 211 and the pressing plate 209 are pressed mutually.

In order to reduce the influence of the water flow on the squeezing of the flow blocking block 207 at normal pressure on the actual detection, preferably, the upper end of the flow blocking block 207 is rectangular, the lower end thereof is hemispherical, and the side wall of the upper end of the flow blocking block 207 is slidably connected with the inner wall of the protective tube 201.

In order to further ensure the monitoring of the water flow and prevent a single flow meter from damaging or transmitting data to a pump set in time when an error occurs, and causing water shortage and abrasion of the pump set, preferably, the flow monitoring mechanism 3 comprises a communication box 301, a second water inlet 302 arranged at the left end of the communication box 301 and a second water outlet 303 arranged at the right end of the communication box 301, the center of the upper end inside the communication box 301 is provided with a limit block 304, the right side of the limit block 304 is provided with a limit groove 305, a second pressure sensor 306 is arranged inside the limit groove 305, the bottom of the communication box 301 at the lower end of the limit block 304 is provided with a deflection plate 307, the lower end of the deflection plate 307 is connected with a torsion spring at the bottom of the communication box 301, and the upper end of the deflection plate 307 is contacted with the second pressure sensor 306.

The working principle is as follows: when the secondary water supply pump set is used, the flow of water in the water supply pipe 1 connected with the secondary water supply pump set is detected through the first flowmeter 5, and simultaneously, the water passes through the flow monitoring mechanism 3, the water drives the upper end of the deflection plate 307 to be far away from the second pressure sensor 306, when the flow of the water is too small, the deflection plate 307 deflects and then extrudes with the second pressure sensor 306, the second pressure sensor 306 senses pressure and then conducts signals to the pump set for shutdown processing, when the pressure of the water is normal, the water directly flows out of the protection mechanism 2 to supply water, when the pressure of the water is too high, the water extrudes the flow blocking block 207, so that the flow blocking block 207 drives the movable rod 206 to ascend, the water enters the pressure relief tank 4 from the pressure relief port 204 to be subjected to partial pressure, and meanwhile, the first pressure sensor 211 receives pressure sensing conduction signals caused by extrusion when the flow blocking block 207 ascends, and enables the pump set to adjust power.

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 secondary water supply lacks water, superpressure protection device, includes that delivery pipe (1) and delivery pipe (1) go up protection machanism (2) of intercommunication, its characterized in that: the protection mechanism (2) comprises a protection pipe (201) and a first water inlet (202), a first water outlet (203) and a pressure relief opening (204) which are formed in the protection pipe (201), the first water inlet (202) is arranged at the bottom of the protection pipe (201) and communicated with a water supply pipe (1), the first water outlet (203) is arranged at the bottom of one side of the protection pipe (201) and communicated with an external water pipe, the pressure relief opening (204) is arranged at the center of the other side of the protection pipe (201) and communicated with a pressure relief tank (4) which is arranged outside, a resistance mechanism is arranged inside the protection pipe (201), the resistance mechanism comprises a fixed plate (205) which is fixed inside the protection pipe (201) and a movable rod (206) which penetrates through the fixed plate (205), the fixed plate (205) is arranged on the inner wall of the protection pipe (201) above the pressure relief opening (204), and a flow choking block (207) is arranged between the pressure relief opening (204) and the first water outlet (203) at the lower end of the movable rod (206), the utility model discloses a water supply pipe, including fixed plate (205), choke block (207), removal pole (206), water supply pipe (1) and first delivery port (203), choke block (207) carry out the resistance with pressure release mouth (204) and first water inlet (202) and first delivery port (203) and separate, and choke block (207) and protective tube (201) inner wall sliding connection, removal pole (206) upper end extends to fixed plate (205) top and is provided with guide plate (208), the cover is equipped with protective spring (212) on removal pole (206) between guide plate (208) and fixed plate (205), be provided with first flowmeter (5) on water supply pipe (1), be provided with flow monitoring mechanism (3) between first flowmeter (5) and first water inlet (202).

2. The protection device for the shortage and the overpressure of secondary water supply according to claim 1, characterized in that a plurality of protection mechanisms (2) are arranged in series, and the first water outlet (203) of the previous protection mechanism (2) is communicated with the first water inlet (202) of the next protection mechanism (2) in the series connection process, and the pressure relief port (204) of each protection mechanism (2) is communicated with the pressure relief tank (4) through the pressure relief pipe (6).

3. A water shortage and overpressure protection device for secondary water supply according to claim 2, characterized in that the pressure relief pipe (6) is provided with a second flow meter (7).

4. The protection device for the water shortage and the overpressure of the secondary water supply as claimed in claim 1, wherein the top end of the interior of the protection tube (201) is connected with a pressing plate (209) through a plurality of pressing elastic members (210), a first pressure sensor (211) is arranged above the guide plate (208), and the first pressure sensor (211) and the pressing plate (209) are pressed against each other.

5. The protection device for the shortage and overpressure of secondary water supply according to claim 1, wherein the upper end of the flow blocking block (207) is rectangular, the lower end is hemispherical, and the side wall of the upper end of the flow blocking block (207) is slidably connected with the inner wall of the protection pipe (201).

6. The protection device for the water shortage and overpressure of the secondary water supply as claimed in claim 1, wherein the flow monitoring mechanism (3) comprises a communication box (301), a second water inlet (302) arranged at the left end of the communication box (301), and a second water outlet (303) arranged at the right end of the communication box (301), a limit block (304) is arranged at the center of the upper end in the communication box (301), a limit groove (305) is arranged at the right side of the limit block (304), a second pressure sensor (306) is arranged in the limit groove (305), a deflection plate (307) is arranged at the bottom of the communication box (301) at the lower end of the limit block (304), the lower end of the deflection plate (307) is connected with a torsion spring at the bottom of the communication box (301), and the upper end of the deflection plate (307) is in contact with the second pressure sensor (306).