阅读说明：本技术 一种静音式无负压供水设备 (Mute type non-negative pressure water supply equipment ) 是由 徐荣榕 朱荣庆 张仁清 于 2020-06-08 设计创作，主要内容包括：本发明提出一种静音式无负压供水设备。包括水箱、第一压力传感器以检测水箱内的水压；底部减震模块,固定连接在水箱下部与地面之间,包括金属板折弯制成的底座,底座中间具有一个矩形的变形腔,底座的外周贴有减震橡胶层；泵送模块包括设在水箱内的抽水泵；水锤消除装置包括缸体以及滑动密封装配在缸体内的活塞,活塞将缸体分隔为上腔和下腔,上腔上设有充气口,通过充气口在上腔中预充有一定体积的空气,下腔设有第二进水口,下腔通过第二进水口与内水管连通；抽水泵突然启动或停机时,产生的水击波带动活塞移动挤压上腔的空气,挤压到一定程度后反向移动,通过多次往复运动消除水波冲击的能量。具有防水锤、噪音小、震动小、不易损坏的优点。(The invention provides a mute type non-negative pressure water supply device. The water pressure detection device comprises a water tank and a first pressure sensor, wherein the first pressure sensor is used for detecting the water pressure in the water tank; the bottom damping module is fixedly connected between the lower part of the water tank and the ground and comprises a base made of a bent metal plate, a rectangular deformation cavity is formed in the middle of the base, and a damping rubber layer is attached to the periphery of the base; the pumping module comprises a water pump arranged in the water tank; the water hammer eliminating device comprises a cylinder body and a piston which is assembled in the cylinder body in a sliding and sealing mode, the piston divides the cylinder body into an upper cavity and a lower cavity, an inflation inlet is formed in the upper cavity, a certain volume of air is pre-filled in the upper cavity through the inflation inlet, a second water inlet is formed in the lower cavity, and the lower cavity is communicated with an inner water pipe through the second water inlet; when the water pump is suddenly started or stopped, the generated water hammer wave band drives the piston to move to extrude the air in the upper cavity, the piston moves reversely after extruding to a certain degree, and the energy of water wave impact is eliminated through repeated reciprocating motion. Has the advantages of water hammer resistance, low noise, low vibration and difficult damage.)

1. Silence formula does not have negative pressure water supply equipment, its characterized in that includes:

the water tank is provided with a first water inlet positioned at the upper part, and the upper part of the water tank is provided with a first pressure sensor for detecting the water pressure in the water tank;

the bottom damping module is fixedly connected between the lower part of the water tank and the ground and comprises a base made of a bent metal plate, a rectangular deformation cavity is formed in the middle of the base, and a damping rubber layer is attached to the periphery of the base;

the pumping module comprises a water pump arranged in the water tank, and an outlet of the water pump penetrates out of the water tank through an internal water pipe to supply water to the outside;

the water hammer eliminating device comprises a cylinder body and a piston which is assembled in the cylinder body in a sliding and sealing mode, the piston divides the cylinder body into an upper cavity and a lower cavity, an inflation inlet is formed in the upper cavity, a certain volume of air is pre-filled in the upper cavity through the inflation inlet, a second water inlet is formed in the lower cavity, and the lower cavity is communicated with the inner water pipe through the second water inlet;

when the water pump is suddenly started or stopped, the generated water hammer wave band drives the piston to move to extrude the air in the upper cavity, the piston moves reversely after extruding to a certain degree, and the energy of water wave impact is eliminated through repeated reciprocating motion.

2. The silent non-negative pressure water supply apparatus according to claim 1, wherein a support plate is provided between the top and the lower part of the deformation chamber of the base, and the support plate divides the deformation chamber into a plurality of independent chambers.

3. The silent non-negative pressure water supply equipment according to claim 1, wherein a valve is further arranged on a pipeline connecting the second water inlet and the internal water pipe.

4. The silent non-negative pressure water supply equipment according to claim 1, wherein a control box is arranged on the outer side of the water tank, an integrated PLC is arranged in the control box, and the integrated PLC is in control connection with the first pressure sensor.

5. A silent non-negative pressure water supply device as claimed in any one of claims 1 to 4, wherein the water tank is provided with three pumping modules at intervals along the length direction thereof, each pumping module is provided with a water hammer removing device, the inner pipelines of the three pumping modules are inserted into the same pipeline unit, and the pipeline unit is provided with a second pressure sensor and an electric contact pressure gauge.

6. A silent non-negative pressure water supply apparatus as claimed in any one of claims 1 to 4, wherein the upper part of the water tank is provided with a rectangular access panel, and the first pressure sensor is disposed away from the access panel.

7. The silent non-negative pressure water supply equipment according to claim 6, wherein the access panel is provided with a reciprocating breathing unit.

Technical Field

The invention relates to a mute type non-negative pressure water supply device.

Background

The non-negative pressure water supply equipment is a pressurized water supply unit, is directly connected with a municipal water supply network, and is serially connected with a pressure-superposed water supply system on the basis of the residual pressure of the municipal pipe network to ensure that the pressure of the municipal pipe network is not less than the set protection pressure (the set pressure must be higher than the pressure requirement of a direct supply area of a community and is generally not less than 1.2 Kg).

The noise is great when current no negative pressure water supply equipment uses, especially opens and stops the time, still can produce the water hammer phenomenon, and the water hammer phenomenon is because opening suddenly of motor promptly because the inertia of pressure rivers produces the rivers shock wave, just like the hammer beats the same, and the rivers shock wave drives water pipe and water supply equipment vibrations, produces the noise, leads to the noise pollution, in addition, still can destroy valve and water pump when the power that the rivers shock wave made a round trip to produce is great.

Disclosure of Invention

The invention provides silent non-negative pressure water supply equipment, which aims to solve the technical problems that the non-negative pressure water supply equipment in the prior art has higher noise and a water hammer is easy to damage a valve and a water pump.

The technical scheme of the invention is realized as follows: the silent type non-negative pressure water supply equipment comprises:

the water tank is provided with a first water inlet positioned at the upper part, and the upper part of the water tank is provided with a first pressure sensor for detecting the water pressure in the water tank;

the bottom damping module is fixedly connected between the lower part of the water tank and the ground and comprises a base made of a bent metal plate, a rectangular deformation cavity is formed in the middle of the base, and a damping rubber layer is attached to the periphery of the base;

the pumping module comprises a water pump arranged in the water tank, and an outlet of the water pump penetrates out of the water tank through an internal water pipe to supply water to the outside;

the water hammer eliminating device comprises a cylinder body and a piston which is assembled in the cylinder body in a sliding and sealing mode, the piston divides the cylinder body into an upper cavity and a lower cavity, an inflation inlet is formed in the upper cavity, a certain volume of air is pre-filled in the upper cavity through the inflation inlet, a second water inlet is formed in the lower cavity, and the lower cavity is communicated with the inner water pipe through the second water inlet;

when the water pump is suddenly started or stopped, the generated water hammer wave band drives the piston to move to extrude the air in the upper cavity, the piston moves reversely after extruding to a certain degree, and the energy of water wave impact is eliminated through repeated reciprocating motion.

Furthermore, a supporting plate is arranged between the top and the lower part of the deformation cavity of the base, and the supporting plate divides the deformation cavity into a plurality of independent cavities.

Furthermore, a valve is arranged on a pipeline connecting the second water inlet and the inner water pipe.

Further, the outside of water tank is equipped with the control box, is equipped with integrated PLC in the control box, integrated PLC and first pressure sensor control connection.

Furthermore, the water tank is provided with three pumping modules at intervals along the length direction of the water tank, each pumping module is provided with a water hammer eliminating device, inner pipelines of the three pumping modules are led into the same pipeline unit, and the pipeline unit is provided with a second pressure sensor and an electric contact pressure gauge.

Further, the upper portion of water tank is equipped with the access panel of rectangle, a pressure sensor avoids the access panel setting.

Furthermore, a reciprocating type breathing unit is arranged on the access panel.

By adopting the technical scheme, the invention has the beneficial effects that: (1) the water hammer phenomenon can be effectively prevented, and through the arrangement of the water hammer eliminating device, when the water pump is suddenly started or stopped, the generated water wave impact enters the lower cavity through the second water inlet of the water hammer eliminating device, the piston is extruded to compress the air pre-filled in the upper cavity, so that the energy of the water wave impact is consumed; (2) the influence of water wave impact on water in the water tank can also cause water oscillation in the water tank to drive the water tank to oscillate, due to the arrangement of the bottom damping module, the deformation cavity has the function of buffering large-range oscillation of the water tank in the vertical direction, and the damping rubber layer can eliminate small-range oscillation, so that the subsequent residual wave influence of the water hammer is further eliminated, and the operation of the equipment is stabilized; (3) the relative position relation of water tank and pumping module can absorb the noise that the water pump operation produced, can also be to water-cooling of water pump motor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the internal structure of a silent non-negative pressure water supply device according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a top view (partially in section) of FIG. 1;

FIG. 4 is a schematic view showing an internal structure of the water hammer removing device;

FIG. 5 is a longitudinal cross-sectional view of a bottom cushion module;

wherein: 1-a water tank, 11-a first water inlet, 12-a first pressure sensor, 13-an access panel, 14-a reciprocating breathing unit, 2-a bottom damping module, 21-a base, 211-a deformation cavity, 212-a support plate, 22-a damping rubber layer, 23-a bolt hole, 3-a pumping module, 31-a water pump, 32-an internal water pipe, 4-a water hammer eliminating device, 41-a cylinder body, 411-an upper cavity, 412-a lower cavity, 413-an inflation inlet, 414-a second water inlet, 415-a sealing cap, 42-a piston, 5-a valve, 6-a second pressure sensor, 7-an electric contact pressure gauge, 8-a pipeline unit and 9-a control box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, a specific embodiment of a silent non-negative pressure water supply apparatus according to the present invention includes: the water tank 1, the water tank 1 has a first water inlet 11 at the upper portion, and the upper portion of the water tank 1 is provided with a first pressure sensor 12 to detect the water pressure in the water tank 1.

Bottom shock-absorbing module 2, fixed connection is between 1 lower part of water tank and ground, specifically is connected with water tank lower part and ground respectively through establishing the bolt hole on roof and bottom plate respectively, including the base 21 that the metal sheet was bent and is made, has the deformation chamber 211 of a rectangle in the middle of the base 21, and the cushion rubber layer 22 is pasted to the periphery of base 21.

The pumping module 3 comprises a water pump 31 arranged in the water tank 1, and an outlet of the water pump 31 penetrates out of the water tank 1 through an inner water pipe 32 to supply water to the outside.

The water hammer eliminating device 4 comprises a cylinder body 41 and a piston 42 which is assembled in the cylinder body 41 in a sliding and sealing mode, the piston 42 divides the cylinder body 41 into an upper cavity 411 and a lower cavity 412, an inflation inlet 413 is arranged on the upper cavity 411, a certain volume of air is pre-filled in the upper cavity 411 through the inflation inlet 413, a second water inlet 414 is arranged in the lower cavity 412, and the lower cavity 412 is communicated with the inner water pipe 32 through the second water inlet 414; during inflation, the sealing cap 415 on the inflation opening is unscrewed, and after inflation is completed, the sealing cap 415 is plugged, so that the upper cavity is sealed.

When the water pump 31 is suddenly started or stopped, the generated water shock wave drives the piston 42 to move to squeeze the air in the upper chamber 411, and the water shock wave reversely moves after being squeezed to a certain degree, so that the energy of the water shock wave is eliminated through multiple reciprocating motions. Namely, the stroke of the piston 42 is related to the gas pressure in the gas containing cavity and the size of the water hammer, and the piston 42 moves up and down under the dual actions of gas with certain pressure and irregular water hammer to form dynamic balance, so that irregular water hammer oscillation is effectively eliminated.

In this embodiment, as shown in fig. 5, a supporting plate 212 is disposed between the top and the lower portion of the deformation cavity 211 of the base 21, and the supporting plate 212 divides the deformation cavity 211 into a plurality of independent cavities, so as to ensure sufficient strength and perform a certain amount of deformation for buffering.

As shown in fig. 1 and 2, a valve 5 is further disposed on a pipeline connecting the second water inlet 414 and the inner water pipe 32.

As shown in fig. 3, the outside of water tank 1 is equipped with control box 9, be equipped with integrated PLC in the control box 9, integrated PLC and first pressure sensor 12 control connection, furthermore, the time control system's that sets up in control box 9 integrated PLC, control system still includes components and parts such as converter, pressure transmitter and pad contact manometer, control system can be according to the numerical value of each sensor and manometer feedback, according to the action of setting for pressure requirement control water pump module, control process is automatic operation, so that keep into water hydraulic pressure invariable.

As shown in fig. 3, the water tank 1 is provided with three pumping modules 3 at intervals along the length direction thereof, each pumping module 3 is provided with a water hammer eliminating device 4, the inner pipelines of the three pumping modules 3 are led into the same pipeline unit 8, and the pipeline unit 8 is provided with a second pressure sensor 6 and an electric contact pressure gauge 7. The upper portion of water tank 1 is equipped with the access panel 13 of rectangle in order to facilitate operations such as maintenance and change, installation, and first pressure sensor 12 avoids access panel 13 setting. The maintenance board 13 is provided with a reciprocating type breathing unit 14 to compensate the air pressure in the water tank 1 and ensure the pressure to be constant, and a plunger mechanism is arranged in the reciprocating type breathing unit.

In the working process: (1) the water hammer phenomenon can be effectively prevented, through the arrangement of the water hammer eliminating device 4, when the water pump is suddenly started or stopped, the generated water wave impacts enter the lower cavity 412 through the second water inlet 414 of the water hammer eliminating device 4, the piston 42 is extruded to compress the air pre-filled in the upper cavity 411, so that the energy of the water wave impact is consumed, because the water wave impact is vibrated, the corresponding piston 42 can also be vibrated in a reciprocating way, and the consumed energy is consumed in the reciprocating vibrating process, so that most of the energy of the water wave impact is eliminated, the purpose of eliminating the water hammer phenomenon is realized, and therefore, the noise pollution caused by the water hammer and the damage to the equipment caused by the repeated impact can also be eliminated; (2) the influence of water wave impact on water in the water tank 1 can also cause water oscillation in the water tank 1 to drive the water tank 1 to oscillate, due to the arrangement of the bottom damping module 2, the deformation cavity 211 has the function of buffering large-range oscillation of the water tank 1 in the vertical direction, and the damping rubber layer 22 can eliminate small-range vibration, so that the subsequent residual wave influence of a water hammer is further eliminated, and the operation of equipment is stabilized; (3) the relative position relation of the water tank 1 and the pumping module 3 can absorb the noise generated by the operation of the water pump and can also cool the water pump motor by water.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.