RU199288U1 - Joint assembly of the control valve and the element of the pump-mixing device of the low-temperature heating system - Google Patents

Abstract

The utility model relates to the junction of the control valve and the element of the pumping and mixing device of the low-temperature heating system, designed to provide a comfortable and economical heat supply for both the entire building and individual rooms. The technical result of the utility model is an increase in the reliability of the connection and a decrease in the linear dimensions of the connection unit of the control valve and the element of the pump-mixing device of the low-temperature heating system, which has an element with an internal thread for connecting the valve, as well as a decrease in labor intensity and metal consumption in the manufacture of this connection unit. The technical result is achieved due to the fact that the connection unit of the control valve and the element of the pumping and mixing device of the low-temperature heating system, which includes a valve containing a housing divided by an actuator into inlet and outlet cavities, ending with branch pipes, and the branch pipe connected to the pumping element mixing device, has a single-start external thread and an O-ring made of elastic material, while the element of the pump-mixing device has an internal thread. The novelty is that on the specified valve thread, an annular groove is made, dividing the thread into two parts, and the depth of the groove exceeds the depth of the thread profile, the width of the groove exceeds the depth of the groove, while the part of the thread that is closer to the actuator has at least two turns thread, on which the inserted locknut is installed, and the said ring of elastic material is installed in the above annular groove. 7 ill.

Description

The utility model relates to the junction of a control valve and an element of a pumping and mixing device (PMS) of a low-temperature heating system, designed to provide a comfortable and economical heat supply, both for the entire building and for individual rooms.

Underfloor heating is a type of low temperature heating system. For a number of reasons, the coolant must be supplied to the pipelines with a temperature below 55 ° C. It is the pumping and mixing device that maintains the coolant temperature at the values required for underfloor heating, by mixing two streams - hot (from the high-temperature main of the heating system) and cooled (from the return line after passing through the low-temperature heating system).

The pump-mixing device is the most important component of the low-temperature heating system. It provides not only circulation of the coolant through the circuits and maintaining the required coolant temperature, but also provides a compact and convenient integration of the entire heating system. The correct layout of the pumping and mixing device affects the dimensions and reliability of the entire heating system.

Known is the junction of the control valve and the element of the pump-mixing device of the low-temperature heating system used in the pump-mixing device JH - 1038 "ZEISSLER" (Technical data sheet for the product JH - 1038 "ZEISSLER" https://docviewer.yandex.ru/view/ 197238126 /? Page = 1 & * = KyP2bjZo% 2FW2NiOrt% 2Fif2% 2BGR2% 2B8V7InVybCI6Imh0dHBzOi8vdGltLXJpZi5ydS9ma & lang = ru),

where the connection unit of the control valve with the element of the pumping and mixing device consists of a valve with an external thread and a union nut with an internal thread. The union nut is held on the body of the pumping and mixing device by means of an annular shoulder-shoulder, and has the ability to rotate. A gasket made of elastic material is installed between the annular shoulder of the NSU body and the end face of the control valve body. The union nut is screwed onto the external thread of the valve, squeezing a gasket made of elastic material between the annular shoulder-shoulder of the NSU body and the end of the valve, and seals the control valve and the NSU body.

The disadvantages of this valve connection unit are:

Increased linear dimensions of the connection unit of the control valve and the element of the pumping and mixing device, due to the increase in the length of the body of the element of the pumping and mixing device, due to the technological necessity of axial displacement of the union nut, for the manufacture of the shoulder-shoulder.

The closest in technical essence is the junction of the control valve and the element of the pump-mixing device of the low-temperature heating system used in the pump-mixing device PF MB 840 "PROFACTOR" to control the low-temperature heating system.

(Technical data sheet for mixing unit PF MB 840 "PROFACTOR" http://profactor.pro/assets/files/tehpasporta/TP%20pumping and mixing unit%20s%20 thermostatic% 20 stabilization% 20PF% 20MB% 20840.pdf)

This unit includes a control valve containing a body, divided by an actuator into inlet and outlet cavities that end with branch pipes. The branch pipe located on the side of the valve connected to the element of the pumping and mixing device has a single-start external thread. A union nut screwed onto the aforementioned thread attaches to the valve a semi-ring with a cylindrical external thread and an O-ring made of elastic material. A cylindrical external thread is screwed into an internal thread of a pump-mixing device element.

The disadvantages of this connection unit are: the presence of a transition element (pipe) and at least two sealed connections when assembling a valve with an element of a pumping and mixing device with an internal thread, from the side of the valve connection, which leads to a decrease in the reliability of the connection and an increase in the linear dimensions of the pumping and mixing device heating systems, which in some cases is highly undesirable.

The objective of the utility model is to increase the reliability of the connection and reduce the linear dimensions of the connection unit of the control valve and the element of the pump-mixing device of the low-temperature heating system, which has an element with an internal thread for connecting the valve, and also to reduce the labor intensity and metal consumption in the manufacture of this connection unit.

The technical result is an increase in the reliability of the connection and a decrease in the linear dimensions of the connection unit of the control valve and the element of the pump-mixing device of the low-temperature heating system, which has an element with an internal thread for connecting the valve, as well as a decrease in labor intensity and metal consumption in the manufacture of this connection unit.

The technical result is achieved due to the fact that the connection unit of the control valve and the element of the pumping and mixing device of the low-temperature heating system, which includes a valve containing a body, divided by an actuator into inlet and outlet cavities ending in branch pipes, and the branch pipe connected to the pumping element the mixing device has a single-start external thread and a sealing ring made of elastic material, while the element of the pumping and mixing device has an internal thread, according to the utility model, on the specified valve thread, an annular groove is made, dividing the thread into two parts, and the depth of the groove exceeds the depth of the thread profile, the width of the groove exceeds the depth of the groove, while the part of the thread located closer to the actuator has at least two threads of the thread on which the inserted locknut is installed, and the said ring of elastic material is installed in the above annular space navku.

FIG. 1 shows a general view of the connection unit;

FIG. 2 shows a section of view A FIG. 1;

FIG. 3 shows a general view of the valve without locknut and ring;

FIG. 4 shows a section of view B FIG. 3;

FIG. 5 shows a general view of a valve with a locknut and a ring;

FIG. 6 shows a section of view C FIG. five;

FIG. 7 shows a general view of the nodes for connecting valves and elements at the inlet and outlet of the pump-mixing device.

The junction of the control valve and the element of the pumping and mixing device of the low-temperature heating system includes:

1. Valve body;

2. Executive mechanism;

3. Branch pipe;

4. External thread;

5. Element of the pumping and mixing device;

6. O-ring;

7. Internal thread;

8. Annular groove;

9. Locknut;

10. End face of the pump-mixing device element.

The junction of the control valve and the element of the pumping and mixing device of the low-temperature heating system, including the valve containing the housing 1, divided by the actuator 2 into inlet and outlet cavities, ending with branch pipes, and the branch pipe 3 connected to the element of the pumping and mixing device has a single-pass external thread 4 for connection to the element 5 of the pumping and mixing device and an O-ring 6 made of elastic material, while the element 5 of the pumping and mixing device has an internal thread 7. New is that on the specified thread 4 of the valve, an annular groove 8 is made, separating the threads into two parts, and the depth of the groove H exceeds the depth of the thread profile, the width of the groove L exceeds the depth of the groove H, while the part of the thread that is closer to the actuator 2 has at least two threads on which the inserted locknut 9 is installed, and the mentioned ring 6 made of elastic material installed in the above ring groove 8.

To connect the control valve to the element 5 of the pumping and mixing device with an internal thread 7 (see Fig. 1, Fig. 2), a part of the valve thread 4 located relative to the actuator 2, behind the locknut 9 and behind the sealing ring installed in the annular groove 8 7 (see Fig. 2), is screwed into the internal thread 7 of the element 5 of the pump-mixing device until the O-ring 6 stops at the end 10 of the element 5 of the pump-mixing device (see Fig. 7). The valve is installed in a position that provides access to its actuator 2, after which, by turning the locknut 9, the O-ring 6 is clamped between the locknut9 and the end face 10 of the element 5 of the pump-mixing device (see Fig. 5, Fig. 6). Thus, the sealing ring 6 made of elastic material is pressed by the lock nut 9 simultaneously against the end 10 of the element 5 of the connection unit of the control valve and the element of the pumping and mixing device and the annular groove 8 on the valve thread 4, ensuring the sealing of the connection and fixing the valve in a pre-oriented position. In this case, in the junction of the control valve and the element of the pumping and mixing device.

Thus, the technical result is achieved, namely, an increase in the reliability of the connection and a decrease in the linear dimensions of the connection unit of the control valve and the element of the pump-mixing device of the low-temperature heating system.

Industrial applicability is obvious, especially when this solution is used in pump-mixing devices of the "warm floor" heating system (see Fig. 7). The applicant carried out a check on the manufactured prototype, which proved the achievement of the task.

Claims (1)

The connection unit of the control valve and the element of the pumping and mixing device of the low-temperature heating system, including the valve containing the body, divided by the actuator into inlet and outlet cavities, ending with branch pipes, and the branch pipe connected to the element of the pumping and mixing device has a single-start external thread and a sealing ring made of elastic material, while the element of the pumping and mixing device has an internal thread, characterized in that an annular groove is made on said valve thread dividing the thread into two parts, and the groove depth exceeds the depth of the thread profile, the groove width exceeds the groove depth, when In this case, the part of the thread, which is closer to the actuator, has at least two turns of the thread on which the inserted locknut is installed, and the said ring of elastic material is installed in the above-mentioned annular groove.

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