Flowmeter well for buried pipeline of circulating water system

Abstract

The utility model discloses a flowmeter well for a buried pipeline of a circulating water system, which comprises a metering well, a circulating water pipe penetrates through the metering well, and a wafer type ultrasonic flowmeter is arranged on a pipe section of the circulating water pipe in the metering well. According to the utility model, the difficulty of underground laying of the flowmeter is solved. The occupied space is greatly saved, the structural support manufacturing cost is reduced, and the attractiveness is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flowmeter well for buried pipeline of circulating water system, which can be applied to various factory areas and belongs to the technical field of underground small structures. BACKGROUND

[0002] In actual projects, the outdoor overhead laying of circulating water pipes in circulating cooling water systems is a common laying method in industrial projects. However, the overhead laying of large-diameter circulating water pipes on outdoor pipe galleries greatly increases the structure support cost of the pipe gallery. At the same time, many engineering projects also consider space, cost, or aesthetics, and choose to lay the circulating water pipes underground.

[0003] When the flow of the buried circulating water pipe in the project needs to be measured, if the circulating water pipe is turned up above the ground, a flowmeter is arranged on the pipeline on the ground. To meet the measurement function of the flowmeter, the length of the installation on the straight pipe section of the circulating water pipe above the ground has higher requirements. In particular, large-diameter circulating water pipes have a greater demand for space above the ground.

[0004] In the project, if the site space is insufficient, there is no need to set up a pipe gallery, the aesthetic requirement is high, or the diameter of the circulating water pipe is large, etc. The flowmeter is more suitable to be arranged on the buried pipeline. However, the flowmeter is an electronic precision instrument, and when the flowmeter is arranged on the buried pipeline, the operability of the flowmeter in actual work and the dryness of the working environment must be considered. SUMMARY

[0005] The utility model solves the technical problem of providing a flowmeter well for buried pipeline of circulating water system.

[0006] In order to solve the above problems, the utility model provides a flowmeter well for buried pipeline of circulating water system, which comprises a metering well, a circulating water pipe passes through the metering well, and the pipe section of the circulating water pipe in the metering well is provided with a clamp type ultrasonic flowmeter.

[0007] Preferably, the metering well adopts a square well; a maintenance well cover is arranged on the metering well, and a well cover handle is arranged on the top of the maintenance well cover. The maintenance well cover should be located on the ground that does not affect the passage of motor vehicles, and the height is 300 mm above the floor.

[0008] Preferably, a waterproof sleeve is arranged between the circulating water pipe and the inner wall of the metering well.

[0009] Preferably, a maintenance ladder is arranged on the inner wall of the metering well.

[0010] Preferably, a submersible sewage pump is arranged in the metering well, the outlet end of the submersible sewage pump is connected with a drainage outlet pipe, and the drainage outlet pipe extends to the outside of the metering well.

[0011] More preferably, the bottom of the metering well is provided with a sump, which has a planar dimension not less than the installation requirement dimension of the submersible sewage pump, and the submersible sewage pump is arranged at the bottom of the sump; the number of the submersible sewage pumps is two, which are respectively a main pump and a standby pump. The two submersible sewage pumps are provided with liquid level control functions, and the standby pump starting liquid level, the alarm liquid level, the main pump starting liquid level and the pump stopping liquid level are arranged in sequence from high to low.

[0012] Further, the depth of the sump is not less than 600 mm.

[0013] More preferably, a support pier for supporting the circulating water pipe is arranged in the metering well.

[0014] Further, the height of the top of the support pier is not less than the alarm liquid level of the submersible sewage pump.

[0015] More preferably, a rubber flexible joint, a pressure gauge, a check valve and a gate valve are arranged in sequence on the water outlet pipe.

[0016] The buried circulating water pipe is provided with a flowmeter well at the flowmeter. When the well may overflow into external rainwater, the rainwater first flows into the sump, and when reaching the set pump starting liquid level, the main pump of the submersible sewage pump starts, and when reaching the set pump stopping liquid level, the submersible sewage pump stops. If the liquid level continues to rise to the starting liquid level of the standby pump, the standby pump starts. If the liquid level continues to rise to the alarm liquid level, the system notifies the alarm and sends a liquid level alarm signal. The set alarm liquid level is generally not higher than 400 mm of the bottom of the metering well.

[0017] The utility model is suitable for the condition that the flowmeter is arranged in the buried pipe of the circulating water system.

[0018] Compared with the conventional metering mode of the buried pipe of the circulating water system, the utility model has the beneficial effects that:

[0019] The utility model discloses a flowmeter well for underground flowmeter installation. The well top access hole is 300 mm higher than the ground to prevent ground rainwater accumulation into the flowmeter well. The well bottom is provided with a sump to collect the accumulated water. A submersible sewage pump is arranged in the sump. The liquid level control of the submersible pump is used to automatically control the timely drainage of the accumulated water in the sump, ensuring a dry environment in the flowmeter. The utility model can greatly save the occupied space, reduce the structure support cost and enhance the aesthetic appearance. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model provides the flowmeter well of the buried pipe of the circulating water system for the plan view of the flowmeter well of the buried pipe of the circulating water system;

[0021] Figure 2 The utility model provides the internal pipeline and equipment plane schematic drawing for the internal pipeline and equipment plane schematic drawing of the utility model;

[0022] Figure 3 The utility model provides the flowmeter well of the buried pipe of the circulating water system for the plan view of the flowmeter well of the buried pipe of the circulating water system;Figure 1 、 2 cross-sectional view of A-A plane in FIG. 1;

[0023] Figure 4 For Figure 1 、 2 cross-sectional view of B-B plane in FIG. 1. DETAILED DESCRIPTION

[0024] In order to make the utility model more obvious and easy to understand, the preferred embodiment is described in detail below with the help of the drawings.

[0025] EMBODIMENT

[0026] As Figures 1-4 shown, the utility model provides a flowmeter well for buried pipeline of circulating water system, its characterized in that, including metering well 1, circulating water pipe 2 passes through metering well 1, and the pipe section of circulating water pipe 2 in metering well 1 is provided with double-clamp ultrasonic flowmeter 3. The circulating water pipe 2 and the inner wall of metering well 1 are provided with waterproof sleeve 4.

[0027] The bottom of metering well 1 is provided with sump 15, and the plane size of sump 15 is not less than the installation requirement size of submersible sewage pump 5, and the submersible sewage pump 5 is arranged at the bottom of sump 15. The number of submersible sewage pump 5 is two, which are main pump and standby pump. The depth of sump 15 is not less than 600 mm. The outlet ends of two submersible sewage pumps 5 are connected with drainage outlet pipe 10, and the drainage outlet pipe 10 extends to the outside of metering well 1. The two submersible sewage pumps are provided with standby pump starting liquid level, alarm liquid level, main pump starting liquid level and pump stopping liquid level from high to low. Rubber flexible joint 7, pressure gauge 6, check valve 8 and gate valve 9 are sequentially arranged on drainage outlet pipe 10.

[0028] Metering well 1 adopts square well. The metering well 1 is provided with manhole cover 11, and the top of manhole cover 11 is provided with manhole cover handle 12. The manhole cover should be located on the ground not affecting the passage of motor vehicles, and the height is 300 mm above the ground.

[0029] The metering well 1 is provided with support pier 14 for supporting circulating water pipe 2. The height of the top of support pier 14 is not less than the alarm liquid level of submersible sewage pump 5.

[0030] The inner wall of metering well 1 is provided with maintenance ladder 13.

[0031] The above flowmeter well is suitable for the case that circulating water pipe is buried and laid, and the specific implementation mode is as follows:

[0032] The buried circulating water pipe 2 is provided with a metering well 1 at the flow meter 3. When the metering well 1 may overflow into the outside rainwater, the rainwater first flows into the sump pit 15, and when reaching the set pump starting liquid level, the main pump in the submersible sewage pump 5 starts, and when reaching the set pump stopping liquid level, the main pump stops. If the liquid level continues to rise to the starting liquid level of the standby pump, the standby pump in the submersible sewage pump 5 starts. If the liquid level continues to rise to the alarm liquid level, the system notifies the alarm and sends a liquid level alarm signal. The set alarm liquid level should not be higher than 400 mm from the bottom of the metering well 1. The metering well bottom can be suitable for the case where other similar related live precision instruments need to be provided on the pipeline.

Claims

1. A flow meter well for a buried pipeline of a recirculating water system, characterized by, Including metering well (1), circulating water pipe (2) passes through metering well (1), the pipe section of circulating water pipe (2) in metering well (1) is provided with clamp-on ultrasonic flowmeter (3).

2. The flow meter well for a buried pipeline of a circulating water system according to Claim 1, wherein The metering well (1) adopts a square well; The metering well (1) is provided with an access manhole cover (11), and the top of the access manhole cover (11) is provided with a manhole cover handle (12).

3. The flow meter well for a buried pipeline of a circulating water system according to claim 1, wherein The circulating water pipe (2) and the inner wall of the metering well (1) are provided with a waterproof sleeve (4) therebetween.

4. The flow meter well for a buried pipeline of a circulating water system according to claim 1, wherein The inner wall of the metering well (1) is provided with an access ladder (13).

5. The flow meter well for buried piping of a circulating water system according to any one of claims 1 to 4, characterized in that, The metering well (1) is provided with a submersible sewage pump (5) therein, the outlet end of the submersible sewage pump (5) is connected with a drainage outlet pipe (10), and the drainage outlet pipe (10) extends to the outside of the metering well (1).

6. The flow meter well for a buried pipeline of a circulating water system according to claim 5, wherein The bottom of the metering well (1) is provided with a sump (15), the planar size of which is not less than the installation requirement size of the submersible sewage pump (5), and the submersible sewage pump (5) is arranged at the bottom of the sump (15); The number of the submersible sewage pump (5) is two, which are a main pump and a standby pump.

7. The flow meter well for a buried pipeline of a circulating water system according to claim 6, wherein The depth of the sump (15) is not less than 600 mm.

8. The flow meter well for a buried pipeline of a circulating water system according to claim 5, wherein The metering well (1) is provided with a support pier (14) for supporting the circulating water pipe (2).

9. The flow meter well for a buried pipeline of a recirculating water system of claim 8, wherein, The height of the top of the support pier (14) is not less than the alarm liquid level of the submersible sewage pump (5).

10. The flow meter well for a buried pipeline of a circulating water system according to claim 5, wherein The drainage outlet pipe (10) is sequentially provided with a rubber flexible joint (7), a pressure gauge (6), a check valve (8) and a gate valve (9).

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