Indoor flow-limiting shutoff valve and outdoor flow-limiting check valve of heat supply system
A heating system and cut-off valve technology, applied in the direction of control valves, safety valves, balance valves, etc., can solve problems such as damage to the user's floor and wall, rupture of water supply pipes, and potential safety hazards, etc. Simple, easy-to-install effect
Inactive Publication Date: 2013-02-27
齐继志
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Problems solved by technology
[0002] In winter, while the heating company solves the heating problem for thousands of households through the heating system, there are also potential safety hazards, that is, the rupture of the heating pipe will bring adverse effects to both the heating company and the user, and will not only waste a lot of water resources, may also damage the user's floors, walls, etc.; in addition, when the water pressure is insufficient, there is also the phenomenon of cold water backflow
At present, there is no product that can effectively prevent the occurrence of water supply pipe rupture and cold water backflow
Method used
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[0026] The following is a detailed description of the inlet flow limiting shut-off valve and the outlet flow limiting one-way valve of the heating system of the present invention in conjunction with the accompanying drawings.
[0027] as attached figure 1 , 2 As shown, the heating system inlet flow limiting shut-off valve of the present invention includes a cylindrical first valve body 11, and the two ends of the first valve body 11 are respectively provided with first welding grooves 12 that cooperate with the heating pipeline. and the second welding tank 13, the diameter of the first valve body 11 is larger than the diameter of the heating pipeline at both ends, and the first valve body 11 is welded together with the heating pipeline before entering the house through the first welding tank 12 and the second welding tank 13 , the first welding tank 12 and the second welding tank 13 are communicated through 6 annular uniformly distributed water inlet holes 14, the inner diame...
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The invention provides an indoor flow-limiting shutoff valve and an outdoor flow-limiting check valve of a heat supply system, wherein the indoor flow-limiting shutoff valve comprises a first valve body provided with a first welding groove and a second welding groove at two ends; the two grooves are communicated with each other through a plurality of water inlets; the first valve body in the first welding groove is provided with a flow-limiting shutoff sheet which is made of an elastic material; a second water inflow gap is formed between the flow-limiting shutoff sheet and the groove bottom of the first welding groove; and a first water inflow gap is formed between the periphery of the flow-limiting shutoff sheet and a groove wall of the first welding groove; the outdoor flow-limiting check valve comprises a second valve body provided with a third welding groove and a fourth welding groove at two ends; the two grooves are communicated with each other through a plurality of water outlets; a one-way sheet made of the elastic material is arranged at the centre on the groove bottom of the fourth welding groove; and a water outflow gap is formed between the periphery of the one-way sheet and the groove wall of the fourth welding groove. The invention is characterized by making use of hydraulic pressure to make the flow-limiting shutoff sheet of the indoor flow-limiting shutoff valve occur elastic deformation to attach onto the water inlets so as to automatically stop water running of a pipe according to sudden increase of differential pressure of a heat supply pipe when the water is running; and the outdoor flow-limiting check valve guarantees no backflow under the function of the one-way sheet so as to automatically stop water from running from the house of a user.
Description
(1) Technical field [0001] The invention relates to a pipeline valve, in particular to an inlet flow-limiting stop valve and an outlet flow-limiting one-way valve of a heating system. (2) Background technology [0002] In winter, while the heating company solves the heating problem for thousands of households through the heating system, there are also potential safety hazards, that is, the rupture of the heating pipe will bring adverse effects to both the heating company and the user, and will not only waste a lot of energy. In addition, when the water pressure is insufficient, there is also the phenomenon of cold water backflow. At present, there is no product that can effectively prevent water supply pipes from breaking and running and cold water backflow. (3) Contents of the invention [0003] The technical task of the present invention is to provide an inlet flow-limiting stop valve and an outlet flow-limiting one-way valve of a heating system aiming at the deficienci...
Claims
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IPC IPC(8): F16K17/24F16K15/16
Inventor 齐继志齐传正
Owner 齐继志