A vacuum drainage pipeline leakage automatic cut-off device
By designing an automatic cut-off device on the vacuum drainage pipeline, and using the combination of gate valves, manual pipelines and automatic pipelines, the automatic shutdown of the vacuum drainage pipeline is realized when it is damaged and automatically opened after repair. This solves the system paralysis problem caused by pipeline damage caused by the vacuum drainage system, and improves the reliability and convenience of use of the system.
Patent Information
- Application Number
- CN202421496201.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-27
AI Technical Summary
During the outdoor sewage collection process of vacuum drainage system, the vacuum pipeline burst and damage caused by external factors such as geological settlement and construction, resulting in vacuum leakage at the vacuum pump station. The entire system is in a paralyzed state. The traditional method of manually closing the gate valve is time-consuming and labor-intensive, affecting the normal operation of the system.
Design a vacuum drainage automatic cutoff device, including setting up gate valves, manual pipelines and automatic pipelines on the vacuum drainage pipeline, the gate valve is connected to the single-acting cylinder, the automatic pipeline is set in parallel through three-way and one-way connection, and the check valve and the throttle valve are used to control the automatic opening and closing of the gate valve.
When the vacuum drainage pipe is damaged, the device automatically closes the gate valve and opens automatically after repair, avoiding the collapse of the entire system due to the damage of a single branch pipe. It is easy to use and does not affect the normal operation of the system.
Smart Images
Figure CN222747093U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vacuum drainage, in particular to an automatic intercepting device for vacuum drainage pipeline leakage. Background Art
[0002] Vacuum drainage system has been widely used for outdoor sewage collection and discharge because of its advantages of small diameter, shallow burial depth, climbing ability, anti-freezing and anti-blocking, flexible pipeline laying, low degree of external environmental restrictions, no impact on the surrounding environment, convenient and fast construction, short construction period, and low civil engineering cost. However, there are many uncontrollable factors in the outdoor sewage collection of vacuum drainage system. For example, vacuum pipeline burst and damage caused by external factors such as geological subsidence and construction will cause vacuum leakage in vacuum pump station and fail to establish vacuum, thus paralyzing the entire system. The traditional solution is to set gate valves on vacuum main pipes and branch pipes, and send people to the site to manually close the gate valves on the main pipes and branch pipes in turn. This treatment method is time-consuming and labor-intensive, and seriously affects the normal sewage collection and discharge of vacuum drainage system. Summary of the invention
[0003] In view of the defects of the prior art, the utility model provides an automatic shutoff device for vacuum drainage pipe leakage, which has a simple structure, reliable performance, and does not require electricity. It can not only automatically close when the pipe is damaged, but also automatically open after the pipe is repaired.
[0004] The utility model is realized by adopting the following technical scheme: an automatic cut-off device for vacuum drainage pipeline leakage, comprising a gate valve, a manual pipeline and an automatic pipeline arranged on the vacuum drainage pipeline, and characterized in that: the gate valve is connected to a single-acting cylinder, the water inlet of the gate valve is connected to the automatic pipeline, and the water outlet of the gate valve is connected to the manual pipeline.
[0005] Furthermore, the single-acting cylinder is reset by a spring.
[0006] Furthermore, the automatic pipeline is arranged in parallel on the vacuum drainage pipeline through a tee-1, the upper port of the tee-1 is connected to the tee-2, the upper port of the tee-2 is connected to the one-way valve, the other end of the one-way valve is connected to the tee-3, the side port of the tee-3 is connected to the atmosphere through a throttle valve, and the upper port is connected to the upper port of the tee-4 through a hose-1.
[0007] Furthermore, the one-way valve opens towards the vacuum drainage pipe.
[0008] Furthermore, the throttle valve has an opening diameter of 0.8-1 mm².
[0009] Furthermore, the manual pipeline is arranged in parallel on the vacuum drainage pipeline through a three-way five, the upper port of the three-way five is connected to the three-way six, the side port of the three-way six is connected to the side port of the three-way two through a hose two, the upper port of the three-way six is connected to the ball valve, the other end of the ball valve is connected to the lower port of the three-way four, and the side port of the three-way four is connected to the single-acting cylinder through a hose three.
[0010] Furthermore, the second diameter of the hose is 3-5 mm.
[0011] Furthermore, one or more sets of the automatic vacuum drainage pipe leakage cutoff device are installed on the main pipe and branch pipe of the same vacuum drainage system respectively.
[0012] Beneficial effect: Due to the adoption of the above structure, the gate valve is in an open state when the vacuum drainage pipeline is under normal negative pressure. Once the vacuum drainage pipeline is damaged, the gate valve is automatically closed. After the damage is repaired, the gate valve is automatically opened. Even when the gate valve is closed, the gate valve can be manually opened by opening the ball valve on the manual pipeline. It is very convenient to use and the entire vacuum drainage system will not collapse due to the damage of a branch pipe.
[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0015] Figure 1 It is a schematic diagram of an embodiment of the utility model in an open state.
[0016] Figure 2 It is a schematic diagram of an embodiment of the utility model in a closed state. DETAILED DESCRIPTION
[0017] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.
[0018] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.
[0019] In this application, the terms "upper", "lower", "inner", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0020] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.
[0021] In addition, the terms "disposed", "provided with", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0022] In addition, the term "plurality" shall mean two or more.
[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0024] like Figure 1 As shown, an automatic shutoff device for vacuum drainage pipeline leakage comprises a gate valve 1 arranged on the vacuum drainage pipeline, the gate valve is connected to a single-acting cylinder 2 which is reset by a spring, water flows from left to right in the gate valve, the water inlet of the gate valve is connected to an automatic pipeline, the water outlet of the gate valve is connected to a manual pipeline, the automatic pipeline is arranged in parallel on the vacuum drainage pipeline through a tee-1 3, the upper port of the tee-1 is connected to a tee-2 4, the upper port of the tee-2 is connected to a check valve 5, the other end of the check valve is connected to a tee-3 6, and the side port of the tee-3 is connected to the atmosphere through a throttle valve 7, The upper port is connected to the upper port of tee four 10 through hose one 8; the manual pipeline is arranged in parallel on the vacuum drainage pipeline through tee five 14, the upper port of tee five is connected to tee six 13, the side port of tee six is connected to the side port of tee two 4 through hose two 9, the upper port of tee six is connected to ball valve 12, the other end of the ball valve is connected to the lower port of tee four 10, and the side port of tee four is connected to the single-acting cylinder 2 through hose three 11.
[0025] Action process: Figure 1As shown, when the vacuum drainage pipeline is under normal negative pressure, both the automatic pipeline and the manual pipeline are under negative pressure. The single-acting cylinder 2 compresses the spring under the action of negative pressure, and the gate valve 1 is in an open valve state. When the vacuum drainage pipeline on the left side of the gate valve 1 is damaged, a large amount of air enters from the damaged part, causing the pressure at both ends of the gate valve to drop to zero instantly. Since the manual pipeline is directly connected to the vacuum drainage pipeline, its pressure also drops to zero instantly. Since the automatic pipeline is equipped with a one-way valve 5, its vacuum degree will not decrease as the negative pressure in the vacuum drainage pipeline decreases. However, due to the continuous and slow entry of air from the throttle valve 7, its vacuum degree will also slowly decrease until it reaches normal pressure. When the negative pressure acting on the single-acting cylinder 2 is less than the elastic force of the compression spring, the single-acting cylinder begins to reset until the gate valve 1 is closed, as shown in FIG. Figure 2 As shown, at this time, due to the continuous vacuum pumping action of the vacuum pump station, the vacuum degree of the vacuum drainage pipeline on the right side of the gate valve and the manual pipeline gradually increases. Under the action of the pressure difference, the vacuum drainage pipeline on the left side of the gate valve passes through the automatic pipeline and the hose 2 9 to pass air into the manual pipeline. However, due to the small diameter of the hose 2, the amount of air entering the vacuum drainage pipeline on the right side of the gate valve 1 from the hose is less than the amount of air discharged by the vacuum pump station. Therefore, the vacuum degree of the vacuum drainage pipeline on the right side of the gate valve 1 will continue to increase; when the damaged part of the vacuum drainage pipeline on the left side of the gate valve 1 is repaired, the vacuum drainage pipeline on the left side of the gate valve 1 forms a closed space. Under the action of the pressure difference, the air in the pipeline on the left side of the gate valve and the automatic pipeline flows out to the pipeline on the right side of the gate valve through the hose 2 9, so that the vacuum degree on both sides of the gate valve tends to be consistent. When the vacuum degree in the automatic pipeline is increased to a certain extent, the negative pressure force on the single-acting cylinder 2 is greater than the elastic force of the compression spring, and the single-acting cylinder contracts until the gate valve 1 is opened.
[0026] When the gate valve 1 is closed and the vacuum drainage pipe on the right side of the gate valve is in a negative pressure state, the ball valve 12 on the manual pipeline can be manually unscrewed. At this time, the manual pipeline and the automatic pipeline are connected, and negative pressure is introduced into the single-acting cylinder. When the negative pressure force on the single-acting cylinder 2 is greater than the elastic force of the compression spring, the single-acting cylinder contracts and opens the gate valve 1.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application.
Claims
1. An automatic shutoff device for vacuum drainage pipeline leakage, comprising a gate valve (1), a manual pipeline and an automatic pipeline arranged on the vacuum drainage pipeline, characterized in that The gate valve (1) is connected to the single-acting cylinder (2), the gate valve water inlet is connected to the automatic pipeline, and the gate valve water outlet is connected to the manual pipeline.
2. The automatic shutoff device for vacuum drainage pipe leakage according to claim 1 is characterized in that The single-acting cylinder (2) is reset by a spring.
3. The automatic cut-off device for vacuum drainage pipe leakage according to claim 2 is characterized in that The automatic pipeline is arranged in parallel on the vacuum drainage pipeline through a tee-1 (3); the upper end of the tee-1 is connected to a tee-2 (4); the upper end of the tee-2 is connected to a one-way valve (5); the other end of the one-way valve is connected to a tee-3 (6); the side end of the tee-3 is connected to the atmosphere through a throttle valve (7); the upper end is connected to the upper end of the tee-4 (10) through a hose-1 (8).
4. The automatic cut-off device for vacuum drainage pipe leakage according to claim 3 is characterized in that The one-way valve (5) opens in the direction of the vacuum drainage pipeline.
5. The automatic cut-off device for vacuum drainage pipe leakage according to claim 4 is characterized in that The throttle valve (7) has an opening diameter of 0.8 to 1 mm².
6. The automatic leakage cut-off device for vacuum drainage pipes according to claim 3 is characterized in that: The manual pipeline is arranged in parallel on the vacuum drainage pipeline through a tee five (14); the upper port of the tee five is connected to a tee six (13); the side port of the tee six is connected to the side port of the tee two (4) through a hose two (9); the upper port of the tee six is connected to a ball valve (12); the other end of the ball valve is connected to the lower port of the tee four (10); the side port of the tee four is connected to the single-acting cylinder (2) through a hose three (11).
7. The automatic cut-off device for vacuum drainage pipe leakage according to claim 6 is characterized in that The diameter of the second hose (9) is 3~5mm.
8. The automatic cut-off device for vacuum drainage pipe leakage according to claim 7 is characterized in that The vacuum drainage pipeline leakage automatic cut-off device is installed in one or more sets on the main pipe and branch pipe of the same vacuum drainage system.