CN215115207U

CN215115207U - Single-pump water supply system

Info

Publication number: CN215115207U
Application number: CN202121611312.8U
Authority: CN
Inventors: 赵世军; 张志成; 程建山; 芦永军; 赵广立; 海曼; 李宇杰
Original assignee: Dalian Optical Path Opto Electronic Co ltd; Shanxi Inspection And Testing Center Shanxi Institute Of Standard Measurement Technology
Current assignee: Dalian Optical Path Opto Electronic Co ltd; Shanxi Inspection And Testing Center Shanxi Institute Of Standard Measurement Technology
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-12-10
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses a single pump water supply system belongs to the water supply technology field. The single-pump water supply system comprises a water storage tank, a water weight, a water injection pipeline, a water drainage pipeline and a shared pipeline, wherein the water injection pipeline, the water drainage pipeline and the shared pipeline are connected with the water storage tank and the water weight. The water injection pipeline and the water discharge pipeline are internally provided with a plurality of valve sets for controlling the on-off of the pipeline, and a constant delivery pump and a flowmeter are arranged in the common pipeline. Each element in the pipeline is connected with the control cabinet, the constant delivery pump conveys water into the water inlet weight, and when the input water quantity measured by the flowmeter reaches a specified number, the water channel is closed and separated from the water weight; and after the measurement is finished, the waterway is connected, and the water in the water weight is output from the drainage pipeline and is sent back to the water storage tank through the valve group and the flowmeter. The water route of simple structure the equipment of being convenient for like this has solved the water supply inconvenience when detecting elevator load with the water tank device, and the higher and relatively poor problem of stability of cost, and reduce cost can supply water, drainage more accurately moreover, has improved the degree of mechanization and the elevator detection efficiency that the water tank supplied water.

Description

Single-pump water supply system

Technical Field

The utility model relates to a water supply technical field specifically is a single pump water supply system.

Background

From 2017, 10, 1, relevant departments need to regularly inspect dragging and forced passenger elevators and firefighter elevators which are used for 5 years or more and are qualified in installation supervision and inspection according to the requirements of a brake test project in a new edition inspection standard. In the measuring process, the lift car is respectively loaded with 30%, 40%, 45%, 50% and 60% of rated load capacity to carry out the whole upper and lower running. Determining the balance coefficient of the elevator to be between 0.40 and 0.50 or meet the design value of a manufacturing unit, and loading the balance coefficient to 125 percent of rated load.

When the weight of water is used as a weight to carry out an elevator load test, water needs to be injected into the water tank for many times, and when water is directly injected into the water tank by using a water pipe to measure, the water injection amount is not easy to control. If a special waterway is adopted for supplying water, because the number of the elevators to be detected is large, the detection equipment needs to move according to the positions of the elevators to be detected, and the excessively complicated pipeline design increases the weight of the whole system and improves the carrying cost on one hand; on the other hand, the probability of maintaining and checking the water supply system is increased due to excessive parts in the system, and the elevator detection progress is influenced to a certain extent.

When the change waits to detect the elevator, if keep the inside water of water tank can make the transport inconvenient, and adopt the artifical method of empting, refilling also can cause the waste of water resource and the extension of repair time, reduce work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a single-pump water supply system has solved the inconvenient water supply when detecting elevator load with the water tank device, the higher and relatively poor problem of stability of cost.

In order to solve the technical problem, the utility model provides a technical scheme does: a single-pump water supply system comprises a water storage tank and a water weight, wherein the water storage tank and the water weight are connected through a connecting water pipe, the connecting water pipe comprises a water injection pipeline, a water drainage pipeline and a shared pipeline, and the shared pipeline is positioned between the water injection pipeline and the water drainage pipeline and is respectively communicated with the water injection pipeline and the water drainage pipeline;

a constant delivery pump is connected in series on the common pipeline, the water injection pipeline and the water discharge pipeline are arranged in parallel, and a plurality of electromagnetic control valves are respectively connected in series inside the water injection pipeline and the water discharge pipeline; and the control cabinet is connected with the constant delivery pump and the electromagnetic control valve.

The water injection pipeline and the water discharge pipeline are separated, only part of the shared pipelines are used, so that the water quantity can be controlled more accurately, and the influence of factors such as accumulated water in the pipelines can be avoided when measurement work and the like need more accurate water quantity calculation; the use frequency of a single pipeline is reduced, and the service life of the system is prolonged. The operating personnel can be through this water supply system of operation control cabinet remote control, flexibility and use scene when having improved the device and using.

Preferably, a filter is arranged at the inlet of the constant delivery pump in the common pipeline, a flow meter is arranged at the outlet of the constant delivery pump, and the flow meter is connected with the control cabinet. The water entering the water weight for detection or returning to the water storage tank is filtered by the filter, then the quantitative pump works further, and the switch of the electromagnetic control valve is accurately controlled through the detection of the flowmeter, so that the water flow in the water injection and drainage process in the pipe is controlled.

Preferably, each group of electromagnetic control valves is connected with one side of the one-way valve in parallel to form a bypass, and the bypass is provided with a spare gate valve. When the electromagnetic control valve or the one-way valve breaks down to block the pipeline, the standby gate valve is started, the bypass is started to enable the pipeline to be smooth, and smooth water injection and drainage work is guaranteed.

The water injection pipeline and the drainage pipeline are distributed in a cross mode, the shared pipeline is a superposition section, and the elevator control valves are respectively arranged at two ends of the water injection pipeline and the drainage pipeline outside the shared pipeline. Such setting makes whole water supply system's structure compacter, has reduced partly water pipe and has arranged and can control weight, lets to assemble this system more portably to be convenient for transport and store, can be applicable to lightly putting multiple position and carry out the water supply operation.

Preferably, a one-way valve is arranged at the starting end of the water injection pipeline and in front of the valve group, so that the situation that liquid in the pipe flows back when water is injected due to the fact that the position of the water storage tank is low is prevented. The liquid in the tube passes through the control valve and then passes through the one-way valve. Because the control valve can only realize one-way cut-off; when the water has reverse pressure, the control valve fails; the check valve can realize the one-way flow of liquid, and when backpressure appeared, liquid can not pass through the check valve, just can not form pressure to the control valve yet to play the effect of protection control valve.

During water injection, an operator sets the water consumption of the water counterweight through the control cabinet, connects the pipeline and starts the single-pump water supply system. At the moment, the water injection pipeline is unblocked, and water flows to the water injection pipeline from the water storage tank, and the water flows sequentially through the electromagnetic control valve, the constant delivery pump and the flowmeter and then conveys the water inlet weight. And continuously injecting water until the water consumption of the set water weight is reached, enabling the flow meter to point to the corresponding scales, closing the water channel, stopping the water injection process, and cutting off the connection between the pipeline and the water weight to normally finish the measurement work of the water weight.

After the measurement is finished, the water weight is moved to the position near the water supply system, a pipeline is connected, and electromagnetic control valves in the quick connector and the drainage pipeline are opened to enable the drainage pipeline to be communicated. Therefore, water in the water weight can return to the water storage tank along the pipeline and be stored again for waiting for use in the next measurement.

Compared with the prior art, the utility model has the substantive characteristics that: a quantitative pump, a plurality of electromagnetic control valves and a one-way valve are adopted to be matched, water inlet and outlet flows in the process of measuring the load of the elevator by using a water weight are adopted, and all elements are connected with a control cabinet for control, so that the mechanization and intellectualization degree in the water supply process is improved, and the time and the labor are saved; and because including a constant delivery pump, a flowmeter in the pipeline, realize the accurate calculation to the water consumption in the water weight under the less condition of spare part quantity, make measured data more accurate, the piping arrangement is simple simultaneously, and the utilization ratio is higher, makes things convenient for the maintenance moreover to maintain, practices thrift the cost, saves space.

Drawings

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Fig. 1 is a schematic structural view of the single-pump water supply system of the present invention.

In the figure: 1. the water pump comprises a water storage tank, 2 water weights, 3 water injection pipelines, 4 water discharge pipelines, 5 first valve groups, 6 second valve groups, 7 third valve groups, 8 fourth valve groups, 9 quantitative pumps, 10 flow meters, 11 electric ball valves, 12 quick connectors and 13 shared pipelines.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

The utility model provides a single pump water supply system includes water storage tank 1 and water weight 2, and both are through connecting water piping connection, connect still to install concentric reducing pipe between water pipe and the water weight 2, and electric ball valve 11, quick-operation joint 12, level gauge and pressure relay have been arranged in proper order to concentric reducing pipe rear.

The connecting water pipe comprises a water injection pipeline 3, a water drainage pipeline 4 and a common pipeline 13, a constant delivery pump 9 is connected in series on the common pipeline 13, and the water injection pipeline 3 and the water drainage pipeline 4 are arranged in parallel. The water injection pipeline 3 comprises a first valve group 5 and a second valve group 6, the water discharge pipeline 4 comprises a third valve group 7 and a fourth valve group 8, each valve group comprises an electromagnetic control valve, and a one-way valve is arranged behind the electromagnetic control valve. The water injection pipeline 3 and the water discharge pipeline 4 are distributed in a crossed manner, the shared pipeline 13 is a superposition section, and valve sets in the pipelines are respectively arranged at two ends of the shared pipeline 13. In the water injection line 3, a non-return valve is arranged in front of the first valve group 5. A filter is arranged at the inlet of the constant delivery pump 9 in the common pipeline 13, and a flowmeter 10 is arranged at the outlet; and the overflow valve is connected in parallel at the outlet of the constant delivery pump 9 and is used as a safety valve.

The outside of the pipeline is connected with a control cabinet, and the control cabinet is connected with a constant delivery pump 9, an electromagnetic control valve, an electric ball valve 11, a quick coupling 12, a flowmeter 10 and a pressure relay.

Water entering the water weight 2 or returning to the water storage tank 1 is filtered through the filter, then the quantitative pump 9 works further, and the switch of the electromagnetic control valve is accurately controlled through detection of the flowmeter 10, so that water flow in the water injection and drainage processes in the pipeline is controlled.

During water injection, an operator sets the water consumption of the water counterweight 2 through the control cabinet, connects the pipeline and starts the single-pump water supply system. At this moment, the water injection pipeline 3 is unblocked, and rivers flow to the water injection pipeline 3 from the water storage tank 1, pass through the check valve, the first valve group 5, the filter, the constant delivery pump 9, the flowmeter 10 and the second valve group 6 in proper order, then carry the weight of intaking 2 behind the electronic ball valve 11, quick-operation joint 12, the level gauge and the pressure relay of concentric reducing pipe rear. After continuing the water injection until the 2 water consumption of water weight of setting for, the directional corresponding scale of flowmeter 10 and level gauge, flowmeter 10 gives the switch board with signal transmission and makes quick-operation joint 12 close, stops the water injection flow, cuts off being connected of pipeline and water weight 2, makes water weight 2 normally accomplish measurement work.

After the measurement is finished, the water weight 2 is moved to the position near the water supply system, a pipeline is connected, and the electromagnetic control valves in the quick connector 12 and the drainage pipeline 4 are opened to enable the drainage pipeline 4 to be communicated. Therefore, water in the water weight 2 can flow through the third valve group 7, the flowmeter 10 and the fourth valve group 8 along the pipeline and return to the water storage tank 1, and the water is stored again to wait for use in the next measurement.

In addition, each group of electromagnetic control valves and one side of the one-way valve are connected in parallel to form a bypass, the bypass is provided with a standby gate valve, when the electromagnetic control valves or the one-way valves break down to block the pipeline, the standby gate valve is started, the bypass is started to enable the pipeline to be smooth, and smooth water injection and drainage work is guaranteed.

The water supply system ensures that the measurement data can be accurately and quickly obtained when the elevator is detected by using the water weight, the condition of manual transportation and water injection is avoided, and the production efficiency is improved; meanwhile, the water for measurement can be recycled, so that resources are saved, and the production cost is reduced; and the structure inside the pipeline is simpler, and the pipeline is convenient to manufacture and carry.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A single pump water supply system characterized by: the water storage tank and the water weight are connected through a connecting water pipe, the connecting water pipe comprises a water injection pipeline, a water drainage pipeline and a shared pipeline, and the shared pipeline is positioned between the water injection pipeline and the water drainage pipeline and is respectively communicated with the water injection pipeline and the water drainage pipeline;

a constant delivery pump is connected in series on the common pipeline, the water injection pipeline and the water discharge pipeline are arranged in parallel, and a plurality of electromagnetic control valves are respectively connected in series inside the water injection pipeline and the water discharge pipeline;

and the control cabinet is connected with the constant delivery pump and the electromagnetic control valve.

2. The single-pump water supply system according to claim 1, wherein: the inlet of the constant delivery pump in the common pipeline is provided with a filter, the outlet is provided with a flowmeter, and the flowmeter is connected with the control cabinet.

3. The single-pump water supply system according to claim 1, wherein: each group of electromagnetic control valves is connected with one side of the one-way valve in parallel to form a bypass, and the bypass is provided with a standby gate valve.

4. The single-pump water supply system according to claim 1, wherein: the water injection pipeline and the drainage pipeline are distributed in a cross mode, the shared pipeline is a superposition section, and the electromagnetic control valves are arranged at two ends of the water injection pipeline and the drainage pipeline outside the shared pipeline respectively.