Constant-pressure water supply system capable of automatically releasing pressure

Abstract

The utility model relates to an automatic pressure relief constant pressure water supply system which comprises a pressure tank structure, a water inlet pipeline, a booster pump set, a water outlet pipeline, an automatic pressure relief device and a base, one end of the water inlet pipeline is connected with the pressure tank structure, the other end of the water inlet pipeline is connected with the booster pump set, the booster pump set is connected with the water outlet pipeline, and the automatic pressure relief device is installed on the water outlet pipeline. A pressure relief device of the automatic pressure relief device is communicated with a short-circuit flange and fixed through a flange connecting bolt, the other end of the short-circuit flange is connected with a water outlet main pipe of a water outlet pipeline, a branch pipe is welded to the water outlet main pipe of the water outlet pipeline, a flange on the branch pipe is fixedly connected with the short-circuit flange, and a wafer manual butterfly valve is installed between the branch pipe and the short-circuit flange. A pressure relief opening of the pressure relief device is connected with a pressure relief pipeline; a pressure relief butterfly valve is arranged between the pressure relief pipeline and the water outlet main pipe; fluid of an overpressure part can be discharged in time through pressure relief, the pressure of an outlet pipeline is effectively relieved, therefore, the outlet pipeline is protected, the water outlet main pipe is prevented from being damaged, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to secondary water supply technical field, concretely is a kind of constant pressure water supply system of automatic pressure relief. BACKGROUND

[0002] The secondary constant pressure water supply system of high-rise building is through the pressure compensation of booster pump group, meets its actual demand and working condition, since system is in unattended state, when outlet pressure set value is high, it is easy to cause the damage phenomenon of water outlet main, thereby the life of resident is affected.

[0003] Therefore, how to automatically relieve pressure before pressure approaches the critical value of water outlet main by corresponding protection measure has become urgent technical problem to be solved. SUMMARY

[0004] The utility model discloses a kind of constant pressure water supply systems of automatic pressure relief to solve the above-mentioned shortage, and the fluid of overpressure part is discharged in time by automatic pressure relief of pressure relief device, effectively relieve the pressure of outlet pipeline, to protect its outlet pipeline, prevent the damage accident of water outlet main, prolong service life.

[0005] To achieve the above-mentioned purpose design a kind of constant pressure water supply system of automatic pressure relief, including pressure tank structure, water inlet pipeline, booster pump group, water outlet pipeline, automatic pressure relief device and base, the water inlet end of water inlet pipeline is connected with pressure tank structure, the water outlet end of water inlet pipeline is connected booster pump group, the booster pump group is fixed on base, the water outlet end of booster pump group is connected water outlet pipeline, automatic pressure relief device is installed on water outlet pipeline, the automatic pressure relief device includes pressure relief device 212 and pressure relief pipeline 219, the pressure relief device 212 is communicated with short-circuit flange 214, and is fixed by flange connection bolt, the other end of short-circuit flange 214 is connected with the water outlet main 216 of water outlet pipeline, the water outlet main 216 of water outlet pipeline is welded with branch pipe, the flange on the branch pipe is connected and fixed with short-circuit flange 214, the branch pipe is equipped with the pair of clamping hand-operated butterfly valve 215 between short-circuit flange 214, the pressure relief port of pressure relief device 212 is connected with pressure relief pipeline 219, and pressure relief butterfly valve 218 is arranged between pressure relief pipeline 219 and water outlet main 216.

[0006] Further, the pressure relief port of pressure relief device 212 is connected with drain pipe, drain pipe flange is installed at the end of drain pipe, drain pipe flange is fixed with pressure relief pipe flange 217 by bolt, and pressure relief pipe flange 217 is installed at the end of pressure relief pipeline 219.

[0007] Further, the water outlet end of the water outlet main pipe 216 is connected with a support short connection 221, one end of the support short connection 221 is connected with a support rod 222, the support rod 222 is arranged transversely, the other end of the support rod 222 is connected with the pressure relief pipeline 219, and the support rod 222 is a length-adjustable rod and is adjusted according to the transverse distance of the pressure relief pipeline 219.

[0008] Further, the water outlet end of the pressure relief pipeline 219 is connected to a drainage ditch 232, the fluid after pressure relief is discharged to the drainage ditch 232 through the pressure relief pipeline 219, the upper end of the drainage ditch 232 is provided with a cover plate 231 and is closed through the cover plate 231, and the water outlet of the pressure relief pipeline 219 is provided with an insect screen 233.

[0009] Further, the pressure tank structure includes a pressure tank 201, a single-head external thread 202 and a tee joint 203, the tee joint 203 is connected with the single-head external thread 202 in the vertical direction, one end of the tee joint 203 in the horizontal direction is connected with a one-piece ball valve 204, the other end of the tee joint 203 in the horizontal direction is connected with an outlet branch pipe 205 on the water outlet pipeline, and is used for pressure difference compensation of the pressure tank 201.

[0010] Further, the water inlet pipeline includes a water inlet main pipeline 206, the water inlet main pipeline 206 is adjusted up and down through a support 210 fixed on the base, the water inlet main pipeline 206 is fixed through flange connection bolts with a water inlet reducing pipe 208, and a manual butterfly valve 207 is inlaid between the water inlet main pipeline 206 and the water inlet reducing pipe 208.

[0011] Further, the booster pump group includes a booster water pump 209, the water inlet end of the booster water pump 209 is connected with the water inlet reducing pipe 208, and the water outlet end of the booster water pump 209 is connected with an outlet reducing pipe 225, so that the pipeline pressure can be further relieved and the service life is prolonged.

[0012] Further, the water outlet pipeline includes a water outlet main pipe 216, the flange at the water inlet end of the water outlet main pipe 216 is connected with a support short connection 221, a manual butterfly valve 220 is arranged between one end of the support short connection 221 and the flange of the water outlet main pipe 216, the other end of the support short connection 221 is connected with the outlet reducing pipe 225, a pair of clamping check valves 223 are arranged between the support short connection 221 and the outlet reducing pipe 225, the other end of the outlet reducing pipe 225 is connected with a flange of the booster water pump 209, the outlet reducing pipe 225 is welded with a branch pipe external thread and connected with a one-piece ball valve 243, the one-piece ball valve 243 is communicated with an outlet pressure gauge 241 through a double-head thread 242, and the water outlet main pipe 216 collects the fluid after pressure boosting and is used for compensation to a user main pipe.

[0013] Further, the base comprises a channel steel base 226 and an outlet support 224 fixed on the channel steel base 226, the channel steel base 226 is used for fixing the booster pump group, the water outlet pipeline is supported and adjusted through the outlet support 224, and the channel steel base 226 is provided with a forklift hole 211.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] (1) the utility model discloses an automatic pressure relief device for outlet pipe of water supply system, which comprises a channel steel base and an outlet support fixed on the channel steel base, wherein the channel steel base is used for fixing a booster pump group, and the water outlet pipeline is supported and adjusted through the outlet support.

[0016] (2) the utility model has the functions of manual pressure relief and automatic pressure relief, and can prevent the situation that automatic pressure relief cannot be normally performed under multiple working conditions, thereby achieving the effect of multi-layer protection.

[0017] (3) the utility model adopts a configured outlet single pump pressure gauge, which can effectively detect the pressure value of actual outlet fluid in the single pump operation process, unlike other water supply systems that only collect the pressure value of the outlet main pipe.

[0018] (4) the utility model installs an automatic pressure relief device on the outlet, timely discharges the fluid of the overpressure part through pressure relief, effectively relieves the pressure of the outlet pipeline, thereby prolonging the service life of the outlet pipeline.

[0019] In summary, the utility model configures different automatic pressure relief devices according to the pump group range of project design, automatically relieves pressure through the pressure relief device when the pressure value is too high during system operation, thereby preventing damage accidents of the water outlet main pipe and effectively prolonging the service life of the system, and is worth popularization and application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is Figure 1 a local enlarged view of A in Fig.

[0022] In the figure: 201, pressure tank; 202, single head external thread; 203, tee; 204, one-piece ball valve I; 205, outlet branch pipe; 206, water inlet main pipeline; 207, manual butterfly valve I; 208, water inlet reducing; 209, booster water pump; 210, support; 211, forklift hole; 212, pressure relief device; 214, short-circuit flange; 215, clamping manual butterfly valve; 216, water outlet main pipe; 217, pressure relief flange; 218, pressure relief butterfly valve; 219, pressure relief pipeline; 220, manual butterfly valve II; 221, support short-circuit; 222, support rod; 223, clamping check valve; 224, outlet support; 225, outlet reducing; 226, channel steel base; 231, cover plate; 232, drainage ditch; 233, insect screen; 241, outlet pressure gauge; 242, double head thread; 243, one-piece ball valve II. DETAILED DESCRIPTION

[0023] As shown in the accompanying drawings Figure 1 and accompanying drawings Figure 2 The utility model provides a constant pressure water supply system of automatic pressure relief, including pressure tank structure, water inlet pipeline, booster pump group, water outlet pipeline, automatic pressure relief device and base, the water inlet end of water inlet pipeline is connected with pressure tank structure, the water outlet end of water inlet pipeline is connected booster pump group, and booster pump group is fixed on the base, and the water outlet end of booster pump group is connected water outlet pipeline, and automatic pressure relief device is installed on water outlet pipeline, and automatic pressure relief device includes pressure relief device 212 and pressure relief pipeline 219, and pressure relief device 212 is communicated with short-circuit flange 214, and is fixed through flange connection bolt, and one end of short-circuit flange 214 is connected with the water outlet main pipe 216 of water outlet pipeline, and the water outlet main pipe 216 of water outlet pipeline is welded with branch pipe, and the flange on branch pipe is connected with short-circuit flange 214 fixedly, and clamping manual butterfly valve 215 is arranged between branch pipe and short-circuit flange 214, and the pressure relief port of pressure relief device 212 is connected with pressure relief pipeline 219, and pressure relief butterfly valve 218 is arranged between pressure relief pipeline 219 and water outlet main pipe 216.

[0024] Wherein, the pressure relief port of pressure relief device 212 is connected with drain pipe, and drain pipe flange is installed at the end of drain pipe, and drain pipe flange is fixed with pressure relief pipe flange 217 by bolt, and pressure relief pipe flange 217 is installed at the end of pressure relief pipeline 219; the water inlet end of water outlet main pipe 216 is connected with support short-circuit 221, and support rod 222 is connected on support short-circuit 221, and support rod 222 is transversely arranged, and the other end of support rod 222 is connected on pressure relief pipeline 219, and support rod 222 is length-adjustable rod and is adjusted according to the transverse distance of pressure relief pipeline 219; the water outlet end of pressure relief pipeline 219 is connected to drainage ditch 232, and the fluid after pressure relief is discharged to drainage ditch 232 through pressure relief pipeline 219, and cover plate 231 is arranged on the upper end of drainage ditch 232 and is closed through cover plate 231, and insect screen 233 is arranged on the water outlet of pressure relief pipeline 219.

[0025] The utility model discloses, base includes channel steel base 226 and export support piece 224, export support piece 224 is fixed on channel steel base 226, and channel steel base 226 is used for fixing booster pump group, and water outlet pipeline passes through export support piece 224 and is supported and is adjusted, and channel steel base 226 is provided with forklift hole 211;Pressure tank structure includes pressure tank 201, single -end outer silk 202 and tee 203, and tee 203 vertical direction and single -end outer silk 202 link, and tee 203 horizontal direction one end and double -end inner silk connection one piece formula ball valve 204, and tee 203 horizontal direction the other end and the export branch pipe 205 on water outlet pipeline link, and be used for the pressure difference of pressure tank 201 and supply;Water inlet pipeline includes water inlet main pipeline 206, and water inlet main pipeline 206 passes through the support piece 210 fixed on base and is adjusted up and down, and water inlet main pipeline 206 and water inlet reducing 208 are fixed through flange connection bolt, and inlay hand -operated butterfly valve no. 207 between water inlet main pipeline 206 and water inlet reducing 208.

[0026] Booster pump group includes booster water pump 209, and the water inlet end of booster water pump 209 is connected water inlet reducing 208, and the water outlet end of booster water pump 209 is connected export reducing 225, thereby can further relieve pipeline pressure, prolong its service life;Water outlet pipeline includes water outlet main pipe 216, and the flange connection support short connection 221 of water outlet main pipe 216 water inlet end, and manual butterfly valve no. 220 is established between the flange between support short connection 221 one end and water outlet main pipe 216, and support short connection 221 other end and export reducing 225 are connected, and opposite clamp check valve 223 is established between support short connection 221 and export reducing 225, and export reducing 225 other end and booster water pump 209 self -supporting flange are connected, and export reducing 225 welding branch pipe outer silk and one piece formula ball valve no. 243 are connected, and one piece formula ball valve no. 243 is communicated with export pressure gauge 241 through double -end silk 242, and water outlet main pipe 216 gathers the fluid after pressure boost and is used to supply to user main pipe.

[0027] The utility model discloses, base includes channel steel base 226 and export support piece 224, export support piece 224 is fixed on channel steel base 226, and channel steel base 226 is used for fixing booster pump group, and water outlet pipeline passes through export support piece 224 and is supported and is adjusted, and channel steel base 226 is provided with forklift hole 211;Pressure tank structure includes pressure tank 201, single -end outer silk 202 and tee 203, and tee 203 vertical direction and single -end outer silk 202 link, and tee 203 horizontal direction one end and double -end inner silk connection one piece formula ball valve 204, and tee 203 horizontal direction the other end and the export branch pipe 205 on water outlet pipeline link, and be used for the pressure difference of pressure tank 201 and supply;Water inlet pipeline includes water inlet main pipeline 206, and water inlet main pipeline 206 passes through the support piece 210 fixed on base and is adjusted up and down, and water inlet main pipeline 206 and water inlet reducing 208 are fixed through flange connection bolt, and inlay hand -operated butterfly valve no. 207 between water inlet main pipeline 206 and water inlet reducing 208.

[0028] The application discloses a constant pressure water supply system structure with automatic pressure relief, which comprises a pressure tank structure, an inlet pipeline, a booster pump group, an outlet pipeline, a pressure relief device and a base. The pressure tank structure comprises a pressure tank 201 and a single-head external thread 202, a tee joint 203 is connected with the single-head external thread 202 in the vertical direction, one end of the tee joint 203 is connected with a double-head internal thread and a one-piece ball valve 204 in the horizontal direction, and the other end of the tee joint 203 is connected with an outlet branch pipe 205 on a water outlet main pipe, and the outlet branch pipe 205 is used for pressure difference compensation of the pressure tank. The inlet pipeline comprises an inlet main pipeline 206 and a supporting part 210, the inlet pipeline is adjusted up and down through the supporting part 210 fixed on the base, so that the horizontal installation of the inlet pipeline is realized, and the loosening of a pipeline connecting part after vibration of the system during operation is met; the inlet main pipeline 206 and an inlet reducing pipe 208 are fixed through flange connecting bolts, a manual butterfly valve 207 is inlaid and butt-jointed between the inlet main pipeline 206 and the inlet reducing pipe 208, and the manual butterfly valve 207 is convenient for disassembly of the pipeline and on-off of fluid in the pipeline when the inlet main pipeline 206 needs to be overhauled.

[0029] The booster pump group is mainly composed of a booster water pump 209, when the feedback pressure value of the system outlet is lower than the set pressure value, the booster water pump 209 is operated to compensate pressure, and small-range pressure fluctuation is compensated through the pressure tank 201, so that the pressure of the system is constant. The outlet pipeline comprises a water outlet main pipe 216, an outlet reducing pipe 225 is connected with a flange of the booster water pump 209 at one end, and the other end of the outlet reducing pipe 225 is fixed with a flange of a supporting short connection 221 through a bolt, the two are clamped with a check valve 223 to prevent fluid backflow after the system stops; the other end of the supporting short connection 221 is connected with a flange on the water outlet main pipe 216, the two are clamped with a manual butterfly valve 220 in the middle, and the two are fixed through a bolt after being connected; the outlet reducing pipe 225 is welded with a one-piece ball valve 243 through a branch pipe external thread, the one-piece ball valve 243 is communicated with an outlet pressure gauge 241 through a double-head thread 242, and the outlet pressure value of the single pump can be directly observed through the pressure gauge; the water outlet main pipe 218 collects fluid after pressure boosting and supplies the fluid to a user main pipe.

[0030] The pressure relief device is welded on the water outlet main pipe 216, a flange on the branch pipe is connected and fixed with the short connection flange 214, a manual butterfly valve 215 is arranged between the two, the short connection flange 214 is communicated with the pressure relief device 212 and is fixed through the flange connecting bolt; when the outlet pressure exceeds the target value of the pressure relief device 212, the water outlet pressure impacts the internal structure of the pressure relief device 212, and the fluid in the water outlet main pipe 216 is discharged outward through the pressure relief pipeline 219, so that the water outlet main pipe 216 is protected, and the risk of damage to the water outlet pipeline is reduced; the drain pipe flange of the pressure relief device 212 is bolted with the pressure relief pipe flange 217, when the pressure is too high and manual pressure relief is needed, the pressure relief butterfly valve 218 can be opened to release pressure, under normal conditions, the valve is always in a normally closed state, the support rod 222 on the support short connection 221 can be adjusted according to the transverse distance of the pressure relief pipeline 219, the fluid after pressure relief is discharged to the drain ditch 232 through the pressure relief pipeline 219, the upper end of the drain ditch 232 is closed by the cover plate 231, and the water outlet of the pressure relief pipeline 219 is blocked by the insect screen 233, so that other organisms cannot enter the pipeline.

[0031] The base comprises a channel steel base 226 for fixing the booster pump group, when the water outlet pipeline is assembled, the outlet support 224 is used for supporting and adjusting, and the forklift hole 211 is used for loading and on-site installation after the system is assembled.

[0032] In conclusion, the utility model relates to a kind of constant pressure water supply systems of automatic pressure relief, including pressure tank structure, water inlet pipeline, booster pump group, water outlet pipeline, pressure relief device and base;Manual and automatic pressure relief device are installed through its outlet, the actual working condition of outlet pressure gauge can be manually relieved by on-site viewing, and it is in the state of automatic pressure relief under unattended condition;This pressure relief water supply system can discharge the fluid of overpressure part in time, effectively relieve the pressure of outlet pipeline, so as to protect its outlet pipeline and prolong service life.

[0033] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, the standard parts used therein can be purchased from the market, the special-shaped parts can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0034] The utility model is not limited by the above-mentioned implementation ways, any change, modification, replacement, combination, simplification made without departing from the spirit and principles of the utility model should be equivalent replacement, which is included in the protection scope of the utility model.

Claims

1. A constant pressure water supply system with automatic pressure relief, characterized in that: The pressure tank structure, water inlet pipeline, booster pump set, water outlet pipeline, automatic pressure relief device and base are connected, the water inlet end of the water inlet pipeline is connected with the pressure tank structure, the water outlet end of the water inlet pipeline is connected with the booster pump set, the booster pump set is fixed on the base, the water outlet end of the booster pump set is connected with the water outlet pipeline, the automatic pressure relief device is installed on the water outlet pipeline, the automatic pressure relief device comprises a pressure relief device (212) and a pressure relief pipeline (219), the pressure relief device (212) is communicated with a short-circuit flange (214) and is fixed by a flange connecting bolt, the other end of the short-circuit flange (214) is connected with a water outlet main pipe (216) of the water outlet pipeline, a branch pipe is welded on the water outlet main pipe (216), a flange on the branch pipe is connected and fixed with the short-circuit flange (214), a clamping hand-operated butterfly valve (215) is arranged between the branch pipe and the short-circuit flange (214), the pressure relief port of the pressure relief device (212) is connected with the pressure relief pipeline (219), and the pressure relief pipeline (219) and the water outlet main pipe (216) are provided with a pressure relief butterfly valve (218).

2. The self-relieving constant pressure water supply system according to claim 1, wherein: The pressure relief port of the pressure relief device (212) is connected with a drain pipe, a drain pipe flange is installed at the end of the drain pipe, the drain pipe flange is bolted with a pressure relief pipe flange (217), and the pressure relief pipe flange (217) is installed at the end of the pressure relief pipeline (219).

3. The self-relieving constant pressure water supply system of claim 2, wherein: The water inlet end of the water outlet main pipe (216) is connected with a support short-circuit (221), the support short-circuit (221) is connected with a support rod (222), the support rod (222) is arranged transversely, the other end of the support rod (222) is connected to the pressure relief pipeline (219), and the support rod (222) is a length-adjustable rod and is adjusted according to the transverse distance of the pressure relief pipeline (219).

4. The self-relieving constant pressure water supply system according to claim 3, wherein: The water outlet end of the pressure relief pipeline (219) is connected to a drainage ditch (232), and the fluid after pressure relief is discharged to the drainage ditch (232) through the pressure relief pipeline (219), the upper end of the drainage ditch (232) is provided with a cover plate (231) and is closed by the cover plate (231), and the water outlet of the pressure relief pipeline (219) is provided with an insect screen (233).

5. The self-relieving constant pressure water supply system according to any one of claims 1 to 4, characterized in that: The pressure tank structure comprises a pressure tank (201), a single-head external thread (202) and a tee joint (203), the tee joint (203) is connected with the single-head external thread (202) in the vertical direction, one end of the tee joint (203) in the horizontal direction is connected with a double-head internal thread and a one-piece ball valve (204), the other end of the tee joint (203) in the horizontal direction is connected with an outlet branch pipe (205) on the water outlet pipeline and is used for pressure difference compensation of the pressure tank (201).

6. The self-relieving constant pressure water supply system according to any one of claims 1 to 4, characterized in that: The water inlet pipeline comprises a water inlet main pipeline (206), the water inlet main pipeline (206) is adjusted up and down by a support (210) fixed on the base, the water inlet main pipeline (206) and a water inlet reducing pipe (208) are fixed by a flange connecting bolt, and the water inlet main pipeline (206) and the water inlet reducing pipe (208) are inlaid with a hand-operated butterfly valve (207).

7. The self-relieving constant pressure water supply system according to any one of claims 1 to 4, wherein: The booster pump set comprises a booster water pump (209), a water inlet end of the booster water pump (209) is connected with a water inlet reducing pipe (208), and a water outlet end of the booster water pump (209) is connected with an outlet reducing pipe (225).

8. The self-relieving constant pressure water supply system of claim 7, wherein: The water outlet pipeline comprises a water outlet main pipe (216), a flange of a water inlet end of the water outlet main pipe (216) is connected with a support short pipe (221), a manual butterfly valve (220) is arranged between one end of the support short pipe (221) and the flange of the water outlet main pipe (216), the other end of the support short pipe (221) is connected with the outlet reducing pipe (225), a pair of clamping check valves (223) are arranged between the support short pipe (221) and the outlet reducing pipe (225), the other end of the outlet reducing pipe (225) is connected with a flange of the booster water pump (209), an external thread of a branch pipe of the outlet reducing pipe (225) is welded with a one-piece ball valve (243), the one-piece ball valve (243) is communicated with an outlet pressure gauge (241) through a double-end thread (242), and the water outlet main pipe (216) collects the fluid after being boosted and is used for supplying to a user main pipe.

9. The self-relieving constant pressure water supply system according to any one of claims 1 to 4, wherein: The base comprises a channel steel base (226) and an outlet support (224), the outlet support (224) is fixed on the channel steel base (226), the channel steel base (226) is used for fixing the booster pump set, the water outlet pipeline is supported and adjusted through the outlet support (224), and a forklift hole (211) is arranged on the channel steel base (226).

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